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188 Commits

Author SHA1 Message Date
Daniel Wolf 80abaf60ac
Merge pull request from DanielSWolf/feature/maintenance
Maintenance
2025-02-17 17:19:14 +01:00
Daniel Wolf 650eec2247 Improve Rhubarb icons 2025-02-17 17:04:21 +01:00
Daniel Wolf 2bbadb8796 Ignore VS warning about the cppformat library 2025-02-17 17:04:21 +01:00
Daniel Wolf 39a4ddb233 Update to latest version of Google Test 2025-02-17 17:04:20 +01:00
Daniel Wolf bd685131e8 Simplify Boost integration 2025-02-17 16:46:27 +01:00
Daniel Wolf b8298a0592 Update required CMake version 2025-02-17 16:46:27 +01:00
Daniel Wolf 78c0f642e2
Merge pull request from DanielSWolf/feature/maintenance
Maintenance
2025-01-07 12:52:37 +01:00
Daniel Wolf 7f4f042121 Improve formatting of license file 2025-01-05 18:55:05 +01:00
Daniel Wolf c93295ff81 Update readme file 2025-01-05 18:55:04 +01:00
Daniel Wolf 05643abb7d Update GitHub actions CI script 2025-01-05 18:55:04 +01:00
Daniel Wolf 3944e31d3a Add .editorconfig, using LF line endings on all platforms 2025-01-05 18:55:04 +01:00
Daniel Wolf fc930a41d8 Migrate old binary files to Git LFS 2024-12-17 11:01:15 +01:00
Daniel Wolf 364a5d4fe4 Version 1.13.0 2022-06-14 19:01:32 +02:00
Daniel Wolf 205540a91b Improve animation rules for "f" sound 2022-06-14 19:00:27 +02:00
Daniel Wolf 0b4d4ee30d Version 1.12.0 2022-03-12 15:26:29 +01:00
Daniel Wolf b967f00c29 Merge branch 'feature/#108-spine-skins' 2022-03-12 15:25:11 +01:00
Daniel Wolf a86ec43f23 Add support for skinning in Rhubarb for Spine 2022-03-11 12:24:44 +01:00
Daniel Wolf 7a04b7ed41 Update dependencies for Rhubarb for Spine 2021-11-26 16:49:12 +01:00
Daniel Wolf 5cface0af3
Merge pull request from DanielSWolf/feature/#103-minor-syntax-fixes
Minor syntax fixes
2021-10-15 18:33:39 +02:00
Daniel Wolf 9a32641a99 Minor syntax fixes
Fixes 
2021-10-15 18:14:55 +02:00
Daniel Wolf ed9a3ab957 Version 1.11.0 2021-10-06 21:05:35 +02:00
Daniel Wolf c4317245b1 Merge branch 'feature/101-wave-file-reader-improvements' 2021-10-06 21:02:50 +02:00
Daniel Wolf 77588fb40e Improve WAVE file reader to handle more formats
Fixes 
2021-10-06 20:48:45 +02:00
Daniel Wolf 3c0befa070 Add test WAVE files 2021-10-04 20:12:28 +02:00
Daniel Wolf 5f293cdd33 Extract WAVE format parsing into its own function 2021-10-04 20:12:00 +02:00
Daniel Wolf 33c542f2e8 Simplify .gitattributes file 2021-09-14 20:11:57 +02:00
Daniel Wolf 3599eb35c1 Improve build status badge 2021-06-25 21:51:28 +02:00
Daniel Wolf 71ec4dca3f Use GitHub Actions for CI
Closes 
2021-06-25 21:13:38 +02:00
Daniel Wolf 7ff2d0be6b Generate nicer artifact names
For instance, Rhubarb-Lip-Sync-1.10.0-macOS.zip rather than rhubarb-lip-sync-1.10.0-osx.zip
2021-06-25 20:58:50 +02:00
Daniel Wolf 8a94fb7db0 Replace boost::filesystem with std::filesystem
This allows us to use a header-only copy of Boost
2021-06-25 20:58:50 +02:00
Daniel Wolf 74822c4a84 Switch to C++17 2021-06-25 20:58:50 +02:00
Daniel Wolf 2b9d305ea1 Fix warnings 2021-06-25 20:58:50 +02:00
Daniel Wolf d6fad367fc Use OpenJFX JavaFX for compatibility with modern JREs
Closes 
2021-06-25 20:58:45 +02:00
Daniel Wolf dda889d6ed Update to Gradle 6.9 2021-06-23 22:00:12 +02:00
Daniel Wolf 1a0c2535b2 Update package-win.bat to use latest Visual Studio 2021-06-23 22:00:12 +02:00
Daniel Wolf a5ebd593d4 Update GoogleTest to latest master 2021-06-23 22:00:12 +02:00
Daniel Wolf b7da2cfd5c
Fix width of README.adoc on GitHub 2021-04-09 08:55:43 +02:00
Daniel Wolf 5a6e8346a3 Fix build with Boost 1.70
Fixes 
2020-09-17 20:26:53 +02:00
Daniel Wolf 2f6e8bc549 Simplify Gradle build 2019-07-21 10:26:41 +02:00
Daniel Wolf df8fd3c1fe Version 1.10.0 2019-07-18 08:02:44 +02:00
Daniel Wolf e57fc97811 Merge remote-tracking branch 'remotes/origin/bugfix/74-spine-beta-support' into develop 2019-07-17 22:01:31 +02:00
Daniel Wolf 5fcc8816f4 Add support for Spine 3.8 JSON format
Fixes 
2019-07-17 21:51:05 +02:00
Daniel Wolf 01d37d110a Add minimal unit tests for Spine integration 2019-07-17 21:44:25 +02:00
Daniel Wolf 3f55afa9a8 Migrate to Gradle Kotlin DSL, fix fat JAR 2019-07-14 21:46:06 +02:00
Daniel Wolf b012c4f7f2 Add Gradle sources 2019-07-11 20:57:43 +02:00
Daniel Wolf d803140e68 Simplify directory structure by un-nesting Kotlin files 2019-07-11 20:57:43 +02:00
Daniel Wolf b9a75662db Upgrade Gradle, Kotlin, and libraries 2019-07-08 20:26:27 +02:00
Daniel Wolf 460378bf50 Merge branch 'feature/69-moho' into develop 2019-07-03 21:08:02 +02:00
Daniel Wolf c7925d69f0 Document DAT exporter for Moho 2019-06-27 22:30:19 +02:00
Daniel Wolf fef283de43 Implement DAT exporter for Moho 2019-06-27 22:30:16 +02:00
Daniel Wolf 6f0e3ef50b Merge branch 'feature/linked-documentation' into develop 2019-06-27 21:34:59 +02:00
Daniel Wolf a29c1795da Add links to README files for extras 2019-06-23 22:13:38 +02:00
Daniel Wolf e3dff54b78 Improve documentation for extras 2019-06-23 21:56:43 +02:00
Daniel Wolf 8da9219e82 Convert README files for extras from Markdown to AsciiDoc 2019-06-23 21:54:13 +02:00
Daniel Wolf 2218d9c69b Improve animation rule for OW sound 2019-05-25 21:17:03 +02:00
Daniel Wolf 18f829d03d Fix build errors in VS2019 2019-05-25 08:03:52 +02:00
Daniel Wolf 80e04b36ab Version 1.9.1 2019-02-10 20:31:23 +01:00
Daniel Wolf f3b9017a2c
Merge pull request from DanielSWolf/bugfix/#65-modification-during-iteration
Clone timeline to prevent modification during iteration
2019-02-10 20:29:29 +01:00
Daniel Wolf 6c62318816 Clone timeline to prevent modification during iteration
Fixes 
2019-02-10 20:18:47 +01:00
Daniel Wolf 5c428793c9 Version 1.9.0 2019-01-28 21:31:33 +01:00
Daniel Wolf f55bcebf73
Merge pull request from DanielSWolf/bugfix/misc
Multiple small fixes and improvements
2019-01-24 20:37:07 +01:00
Daniel Wolf 8d958d09fb Always export absolute audio file path in XML and JSON format
Fixes 
2019-01-23 21:43:21 +01:00
Daniel Wolf 06b4855d6d Set helpful configuration settings for the phonetic recognizer
Copied from the PocketSphinx recognizer
2019-01-23 21:43:17 +01:00
Daniel Wolf c821788569 Discard very short segments of voice activity
This prevents short flickers from false VAD positives.
This fixes a regression recently introduced in 2bbad258c0.
2019-01-23 21:43:17 +01:00
Daniel Wolf 21392d32cc Improve read performance for WAVE files
Fixes 
2019-01-23 21:43:16 +01:00
Daniel Wolf f3d4cfbb31 Fix gaps in phonetic recognition
Randomly, entire utterances yielded no phones with the phonetic recognizer.
The cause was a check for empty utterances that made sense for word
recognition, but not for phonetic recognition.
2019-01-21 22:22:28 +01:00
Daniel Wolf 357cb0b65e
Merge pull request from DanielSWolf/bugfix/#56-script-editor-pops-up
Prevent debug info from popping up
2019-01-10 22:13:35 +01:00
Daniel Wolf c68c12c865 Prevent debug info from popping up
Fixes 
2019-01-10 20:47:43 +01:00
Daniel Wolf e5066b549f
Merge pull request from DanielSWolf/bugfix/#54-unicode-paths
Fix special characters in output file path
2019-01-04 21:38:47 +01:00
Daniel Wolf 9ba5fc9653 Fix special characters in output file path
Issue 
2019-01-04 21:29:03 +01:00
Daniel Wolf d52bec8e55
Merge pull request from DanielSWolf/bugfix/#52-unwanted-mouth-movement
Prevent unwanted mouth movement at beginning
2019-01-04 21:03:25 +01:00
Daniel Wolf 2bbad258c0 Do not use multithreading for VAD
WebRTC adapts to the audio signal. If we slice the audio clip into multiple
shorter clips, then perform VAD on them in parallel, the result may not be as
good.
2019-01-04 21:02:41 +01:00
Daniel Wolf a723942f22 Convert audio to 8kHz before feeding it to WebRTC for VAC
This prevents false positives at the beginning of the audio stream. Fixes issue .
2019-01-04 21:02:41 +01:00
Daniel Wolf 10632576bd
Merge pull request from DanielSWolf/bugfix/#46-progress
Prevent incomplete progress reporting
2019-01-03 17:02:27 +01:00
Daniel Wolf 1393534624 Prevent utteranceToPhones from reporting incomplete progress 2019-01-03 13:10:05 +01:00
Daniel Wolf 494b1ebebd Log incomplete tasks 2019-01-03 13:10:05 +01:00
Daniel Wolf 59f2993174
Merge pull request from DanielSWolf/feature/cleanup
Code cleanup
2019-01-03 08:50:10 +01:00
Daniel Wolf 367c645bb3 Code cleanup
* Fix linter warnings
* Unify code formatting
* Fix typos
2019-01-02 22:27:45 +01:00
Daniel Wolf 238687e33b
Merge pull request from DanielSWolf/feature/#38-upgrade-utf8proc
Upgrade to utf8proc 2.2.0
2019-01-02 16:21:00 +01:00
Daniel Wolf cdc9c5b1c4 Upgrade to utf8proc 2.2.0
Fixes issue 
2019-01-02 15:18:00 +01:00
Daniel Wolf f4418ff25a
Merge pull request from DanielSWolf/bugfix/#46-progress
Fix progress reporting
2019-01-02 15:04:27 +01:00
Daniel Wolf 1d04b01654 Update changelog 2019-01-02 14:52:07 +01:00
Daniel Wolf e87ccc8816 Hide progress spinner when ProgressBar gets destructed 2019-01-02 14:38:53 +01:00
Daniel Wolf 3189fc8976 Don't clear away last progress bar 2019-01-02 14:30:03 +01:00
Daniel Wolf e325917abe Preserve progress when continuing console output 2019-01-02 14:30:02 +01:00
Daniel Wolf d0c9a294e9 Correctly print final progress when ProgressBar is destructed
Fixes issue 
2019-01-02 14:30:02 +01:00
Daniel Wolf 11a29ddef6 Split progress code 2019-01-02 13:22:03 +01:00
Daniel Wolf 44d6cb83de Update documentation 2019-01-02 12:16:35 +01:00
Daniel Wolf c078e6186e
Merge pull request from DanielSWolf/feature/phonetic-recognition
Phonetic recognition
2019-01-02 11:36:08 +01:00
Daniel Wolf d029458c70 Document phonetic recognizer 2019-01-01 23:16:12 +01:00
Daniel Wolf bfc98a1c81 Add recognizer support to Spine integration 2019-01-01 22:51:02 +01:00
Daniel Wolf 3bf7a00d42 Add recognizer support to After Effects integration 2019-01-01 22:51:02 +01:00
Daniel Wolf 7ebe9b53e8 Internal version 1.9.0-pre.1 2019-01-01 22:51:02 +01:00
Daniel Wolf 610f490046 Implement generic concept of recognizers with options pocketSphinx and phonetic 2019-01-01 22:51:01 +01:00
Daniel Wolf 3ed38ada2f Fix path separator 2018-10-08 20:31:13 +02:00
Daniel Wolf 55a099ddc6 Version 1.8.0 2018-09-01 21:02:44 +02:00
Daniel Wolf bf044ca127 Update After Effects plugin to support non-WAVE audio files 2018-09-01 21:02:43 +02:00
Daniel Wolf c93da48c77 Rename changelog
... and fix typo
2018-09-01 21:02:43 +02:00
Daniel Wolf ce02a3a003 Change format of changelog 2018-09-01 20:31:50 +02:00
Daniel Wolf 49097b00d7 Update documentation 2018-09-01 15:19:14 +02:00
Daniel Wolf 8648ed5640
Merge pull request from DanielSWolf/feature/#40-ogg-vorbis
Support for Ogg Vorbis file format
2018-09-01 10:34:54 +02:00
Daniel Wolf c22550f7f8 Support Unicode paths when opening Ogg Vorbis files 2018-09-01 10:24:05 +02:00
Daniel Wolf 5e7e6f5f87 Increase Ogg Vorbis read performance through buffering
Reduces runtime by factor 10
2018-09-01 10:24:05 +02:00
Daniel Wolf e13c222e28 Add support for Ogg Vorbis file format
2018-09-01 10:24:05 +02:00
Daniel Wolf 1625de64e2 Move file utilities into their own file 2018-09-01 10:24:04 +02:00
Daniel Wolf d077aae74c Add libvorbis 2018-09-01 10:23:58 +02:00
Daniel Wolf b4a2a295d1 Patch libogg for generic Unix compilers 2018-09-01 10:23:53 +02:00
argent0 e02de085bb Fix build error resulting from assigning boost::uuids::random_generator ()
Using a static generator to generate uuids

This time explicitly writing the type.
2018-07-19 20:19:38 +02:00
Daniel Wolf a446209c31 Add libogg 2018-07-13 22:59:47 +02:00
Daniel Wolf 5a6630f4b2 Version 1.7.2 2018-04-27 22:20:35 +02:00
Daniel Wolf ec698be116
Merge pull request from DanielSWolf/bugfix/mutable-set
Use mutable set for animation names
2018-04-27 22:18:14 +02:00
Daniel Wolf 8f2cc2c5e6 Small type fixes and cleanup 2018-04-27 22:04:06 +02:00
Daniel Wolf 1784458931 Use mutable set for animation names
See https://youtrack.jetbrains.com/issue/KT-9959

Fixes  (again)
2018-04-27 22:04:06 +02:00
Daniel Wolf 7a70ab32c9 Show stack trace for internal exceptions 2018-04-27 21:59:07 +02:00
Daniel Wolf f7cca4c789
Merge pull request from DanielSWolf/feature/ci-publish
Build and upload release artifacts through CI
2018-04-27 21:40:49 +02:00
Daniel Wolf eee8e5d5e5 Deploy Windows artifacts to GitHub release 2018-04-27 21:32:22 +02:00
Daniel Wolf 8131cecff0 Windows CI through AppVeyor 2018-04-27 21:32:22 +02:00
Daniel Wolf 46b146a11a Deploy OS X and Linux artifacts to GitHub release 2018-04-27 21:08:21 +02:00
Daniel Wolf 8527c1577a Version 1.7.1 2018-03-29 22:50:56 +02:00
Daniel Wolf a3a64d8b5d Merge branch 'bugfix/spine-from-jar' 2018-03-29 22:49:42 +02:00
Daniel Wolf e4a661513e Implement more robust way of determining binary directory
Fixes 
2018-03-29 22:41:28 +02:00
Daniel Wolf f39f9c71d9 Showing exception type for exceptions without message
Before, the content area of the message box would be empty for these exceptions.
2018-03-29 22:41:24 +02:00
Daniel Wolf b94d894c36 Add stderr logging for exceptions in Rhubarb for Spine 2018-03-29 22:41:18 +02:00
Daniel Wolf 5169e3e46e Version 1.7.0 2018-02-20 21:02:21 +01:00
Daniel Wolf 1a2c77ac5b
Merge pull request from DanielSWolf/feature/spine
Implemented Spine integration
2018-02-19 21:40:37 +01:00
Daniel Wolf 5fe835bde5 Updated documentation 2018-02-19 21:28:12 +01:00
Daniel Wolf 484fd5bd1c Renamed directory for consistency 2018-02-19 08:36:32 +01:00
Daniel Wolf 33dbf6c579 Fixed race condition when deleting temporary files 2018-02-18 20:51:50 +01:00
Daniel Wolf 64bdf78b85 Fixed warnings 2018-02-16 21:50:24 +01:00
Daniel Wolf eb2a6a3264 Unified progress bar code 2018-02-16 21:50:23 +01:00
Daniel Wolf 19f6772c30 Visualizing mouth shapes more nicely 2018-02-16 21:50:23 +01:00
Daniel Wolf 8b06f60746 Removed IDEA files
They can be re-generated by importing the Gradle project.
2018-02-16 21:08:22 +01:00
Daniel Wolf 19a6b77529 Nicely visualizing progress 2018-02-09 23:23:37 +01:00
Daniel Wolf b75a3ca1d9 Explicitly showing status "not animated" 2018-02-09 22:32:01 +01:00
Daniel Wolf a9de5a0a71 Warning before overwriting existing animation 2018-02-09 22:29:02 +01:00
Daniel Wolf 5db03da56f Allowing the animation naming to be customized 2018-02-09 22:18:48 +01:00
Daniel Wolf ce54ba60a7 Respecting table cell padding 2018-02-09 21:45:27 +01:00
Daniel Wolf 7fcaa2ddf7 Setting dock icon on OS X 2018-02-09 21:45:26 +01:00
Daniel Wolf 8f1056dc5f Normalizing paths
This doesn't affect behavior but makes for nicer error messages.
2018-02-07 20:50:35 +01:00
Daniel Wolf f3de163d72 Improved error message formatting 2018-02-07 20:49:35 +01:00
Daniel Wolf dd1884432c Improved error handling 2018-02-07 20:38:54 +01:00
Daniel Wolf 389fd0480b Disabling main controls while busy 2018-02-07 20:01:23 +01:00
Daniel Wolf 0cb82f3e4e Improved column widths 2018-02-04 11:17:38 +01:00
Daniel Wolf ecc8efc565 Added window icon 2018-02-03 16:30:03 +01:00
Daniel Wolf d9d0f37b5a Dialog column wraps its text 2018-02-03 16:30:03 +01:00
Daniel Wolf 6e5af62be7 Shutting down executor service to that application can exit cleanly 2018-02-03 16:30:02 +01:00
Daniel Wolf 34610d0572 Preventing more than one audio file from being processed simultaneously 2018-02-03 16:30:02 +01:00
Daniel Wolf 19a3144572 Integrated Rhubarb for Spine into build 2018-02-03 16:30:01 +01:00
Daniel Wolf 61731441b3 Made JAR file executable 2018-02-02 21:33:21 +01:00
Daniel Wolf db3615b3c3 Updated Gradle wrapper files 2018-02-02 21:33:21 +01:00
Daniel Wolf 7bb1bec975 Implemented round trip Spine - Rhubarb - Spine 2018-02-02 21:33:21 +01:00
Daniel Wolf 4d9ddf334f Loading Spine JSON file 2018-02-02 21:33:20 +01:00
Daniel Wolf 82c0a1531e Dynamically reading version from CMake file 2018-02-02 21:33:20 +01:00
Daniel Wolf d46e574b8e Created empty rhubarb-for-spine project using Kotlin/JavaFX
I hope that's a better tech stack.
2018-02-02 21:33:19 +01:00
Daniel Wolf a3252359fb Removed rhubarb-for-spine. Wrong tech stack.
Turns out I chose the wrong technology stack. Windows Forms
is riddled with bugs that Microsoft won't fix, and Mono's
support for Windows Forms isn't quite the drop-in
replacement I had hoped for.
2018-02-02 21:33:19 +01:00
Daniel Wolf df783f9afa First working version of Rhubarb Lip Sync for Spine (C#, Windows Forms) 2018-02-02 21:33:19 +01:00
Daniel Wolf 7e7acb8068 Updated .gitignore 2018-02-02 21:33:18 +01:00
Daniel Wolf 1c85dbfc3a Added ReSharper C# settings 2018-02-02 21:33:18 +01:00
Daniel Wolf c3602ef23b
Merge pull request from DanielSWolf/feature/build-restructuring
Moved main executable into its own directory along with its build logic
2018-02-02 21:30:22 +01:00
Daniel Wolf 4b016efae7 Restructured README file
When viewed on GitHub, some lines were displayed wider than the window.
The restructuring fixes this, too.
2018-01-24 18:55:09 +01:00
Daniel Wolf e5c39efeeb Moved main executable into its own directory along with its build logic
This will make it easier to add other artifacts that require build steps.
2018-01-24 18:38:09 +01:00
Daniel Wolf ee83c79511
Merge pull request from DanielSWolf/bugfix/travis-build
Workaround for Travis CI failure
2018-01-24 18:36:19 +01:00
Daniel Wolf 138f7dfc4a Workaround for Travis CI failure
See https://blog.travis-ci.com/2017-12-12-new-trusty-images-q4-launch
2018-01-24 18:28:53 +01:00
Daniel Wolf bfafac735e Added more info-level logging 2018-01-23 20:31:04 +01:00
Daniel Wolf e90f559a10 Flushing stderr for each line when using --machineReadable flag 2018-01-23 20:30:06 +01:00
Daniel Wolf 04595a0441
Merge pull request from besmaller/bugfix/#25-segfault
Bug fix for segfault in fixStaticSegmentRules
2017-11-22 12:33:20 +01:00
Brian Small 6da2ca1b2f Fixed a segfault which would occur when the size of possibleRuleChanges was less than 3 (maxReplacementCount) 2017-11-22 01:46:09 -08:00
Daniel Wolf 22d8dbee64 Merge pull request from DanielSWolf/feature/structured
--machineReadable and --consoleLevel options
2017-09-13 20:49:24 +02:00
Daniel Wolf b2f52824b3 Added --consoleLevel option. Default value is ERROR, not WARN. 2017-09-13 20:39:52 +02:00
Daniel Wolf ef245ce4ff Updated VERSION.md and README.adoc 2017-09-12 22:38:30 +02:00
Daniel Wolf 223244ed8c Added --machineReadable flag
Handling all stderr output through logging sinks
2017-09-12 22:38:15 +02:00
Daniel Wolf f0d3364213 Made ProgressBar destruction behavior configurable 2017-09-12 20:23:48 +02:00
Daniel Wolf 1511f0a9e0 Added logging functions 2017-09-12 20:23:48 +02:00
Daniel Wolf 360f85df42 Updated VERSION.md 2017-09-12 19:46:46 +02:00
Daniel Wolf 97a6c74c3c Merge pull request from DanielSWolf/feature/refactoring
Various refactorings
2017-09-12 19:35:37 +02:00
Daniel Wolf 72d020286f Added ReSharper settings file 2017-09-12 19:29:11 +02:00
Daniel Wolf 55cf80e40b Refactoring: Made imports more specific 2017-09-12 19:29:10 +02:00
Daniel Wolf 4c0d706857 Refactoring: split logging code into individual files 2017-09-12 19:29:10 +02:00
Daniel Wolf 24e8da4474 Moved escapeJsonString to stringTools 2017-09-12 18:57:49 +02:00
Daniel Wolf d705a0c0ee Introduced parameter class ExporterInput 2017-09-12 18:57:49 +02:00
Daniel Wolf 4de8f3d18e Merge pull request from DanielSWolf/feature/utf-8
Full Unicode support by using UTF-8 throughout
2017-09-10 22:10:24 +02:00
Daniel Wolf 1fb2eb9024 Fixed JSON output for non-ASCII filenames
When exporting to JSON, the "soundFile" string wasn't correctly encoded if it contained non-ASCII characters.
In this case, the resulting JSON was invalid and couldn't be parsed.
2017-08-15 21:05:18 +02:00
Daniel Wolf 5f451feb00 Made entire application Unicode-aware
All 8-bit strings are UTF-8-encoded now.
2017-08-15 20:47:05 +02:00
Daniel Wolf 7789d43e47 Added utf8proc library 2017-08-01 19:21:17 +02:00
Daniel Wolf e5c7215cc5 Added UTF8-CPP library 2017-08-01 19:10:29 +02:00
Daniel Wolf dd1108b6cd Removed BOM from all code files 2017-08-01 18:01:21 +02:00
Daniel Wolf f17cb0cc54 Treating strings as UTF-8 2017-08-01 17:52:01 +02:00
Daniel Wolf 908d64d01b Raised minimum OS X version from 10.7 to 10.8
Target version 10.7 doesn't seem to support std::async.
2017-07-30 22:29:24 +02:00
5474 changed files with 162047 additions and 157184 deletions
.editorconfig.gitattributes
.github/workflows
.gitignore.travis.ymlCHANGELOG.mdCMakeLists.txtLICENSE.mdREADME.adocVERSION.mdappInfo.cmake
extras
img
lib/googletest

15
.editorconfig Normal file
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@ -0,0 +1,15 @@
# Config file for generic text editors.
root = true
[*]
charset = utf-8
end_of_line = lf
indent_style = tab
indent_size = 4
insert_final_newline = true
trim_trailing_whitespace = true
[*.{yml,yaml}]
indent_style = space
indent_size = 2

5
.gitattributes vendored Normal file
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@ -0,0 +1,5 @@
# Use Git LFS for binary files
*.wav filter=lfs diff=lfs merge=lfs -text
*.flac filter=lfs diff=lfs merge=lfs -text
*.ogg filter=lfs diff=lfs merge=lfs -text
*.mp3 filter=lfs diff=lfs merge=lfs -text

87
.github/workflows/ci.yml vendored Normal file
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@ -0,0 +1,87 @@
name: Build
on: push
jobs:
build:
runs-on: ${{ matrix.os }}
strategy:
fail-fast: false
matrix:
include:
- description: Windows - Visual Studio
os: windows-2019
cmakeOptions: '-G "Visual Studio 16 2019" -A x64'
publish: true
- description: macOS - Xcode
os: macos-13
cmakeOptions: ""
publish: true
- description: Linux - GCC
os: ubuntu-20.04
cmakeOptions: "-D CMAKE_C_COMPILER=gcc-10 -D CMAKE_CXX_COMPILER=g++-10"
publish: true
- description: Linux - Clang
os: ubuntu-20.04
cmakeOptions: "-D CMAKE_C_COMPILER=clang-12 -D CMAKE_CXX_COMPILER=clang++-12"
publish: false
env:
BOOST_ROOT: ${{ github.workspace }}/lib/boost
BOOST_URL: https://sourceforge.net/projects/boost/files/boost/1.86.0/boost_1_86_0.tar.bz2/download
steps:
- name: Checkout repository
uses: actions/checkout@v4
with:
lfs: true
- name: Restore Boost from cache
uses: actions/cache@v4
id: cache-boost
with:
path: ${{ env.BOOST_ROOT }}
key: ${{ env.BOOST_URL }}
- name: Download Boost
if: steps.cache-boost.outputs.cache-hit != 'true'
shell: bash
run: |
if [ "$RUNNER_OS" == "Windows" ]; then
# use forward slashes only
BOOST_ROOT=$(echo $BOOST_ROOT | sed 's/\\/\//g')
fi
mkdir -p $BOOST_ROOT
curl --insecure -L $BOOST_URL | tar -xj --strip-components=1 -C $BOOST_ROOT
- name: Build Rhubarb
shell: bash
run: |
JAVA_HOME=$JAVA_HOME_11_X64
mkdir build
cd build
cmake ${{ matrix.cmakeOptions }} ..
cmake --build . --config Release --target package
- name: Run tests
shell: bash
run: |
if [ "$RUNNER_OS" == "Windows" ]; then
./build/rhubarb/Release/runTests.exe
else
./build/rhubarb/runTests
fi
- name: Upload artifacts
if: ${{ matrix.publish }}
uses: actions/upload-artifact@v4
with:
name: ${{ matrix.description }}
path: build/*.zip
release:
needs: build
runs-on: ubuntu-latest
if: startsWith(github.ref, 'refs/tags/v')
steps:
- name: Download artifacts
uses: actions/download-artifact@v4
- name: Create GitHub release draft
uses: softprops/action-gh-release@v2
with:
draft: true
files: "*.zip"
env:
GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

6
.gitignore vendored
View File

@ -1,3 +1,3 @@
/.idea
/.vs
/build
.vs/
build/
*.user

View File

@ -1,25 +0,0 @@
language: cpp
sudo: required
dist: trusty
matrix:
include:
- os: linux
compiler: gcc
before_install:
- sudo add-apt-repository -y ppa:ubuntu-toolchain-r/test
- sudo apt-get -q update
install:
- sudo apt-get -y install g++-5
- sudo apt-get -y install libboost-all-dev
script:
- mkdir build
- cd build
- cmake -DCMAKE_CXX_COMPILER=g++-5 .. && make && ./runTests
- os: osx
osx_image: xcode7.3
script:
- mkdir build
- cd build
- cmake .. && make && ./runTests

181
CHANGELOG.md Normal file
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@ -0,0 +1,181 @@
# Version history
## Version 1.13.0
* **Improved** animation rules for "F" sound when using just the basic mouth shapes.
## Version 1.12.0
* **Added** support for skinning in Rhubarb for Spine ([issue #108](https://github.com/DanielSWolf/rhubarb-lip-sync/issues/108))
## Version 1.11.0
* **Added** support for more WAVE file features ([issue #101](https://github.com/DanielSWolf/rhubarb-lip-sync/issues/101))
* **Changed** Rhubarb Lip Sync for Spine so that it works with any modern JRE ([issue #97](https://github.com/DanielSWolf/rhubarb-lip-sync/issues/97))
* **Changed** Windows build from 32 bit to 64 bit ([issue #98](https://github.com/DanielSWolf/rhubarb-lip-sync/issues/98))
## Version 1.10.0
* **Added** switch data file exporter for Moho (formerly Anime Studio) and OpenToonz ([issue #69](https://github.com/DanielSWolf/rhubarb-lip-sync/issues/69))
* **Added** support for Spine 3.8 beta ([issue #74](https://github.com/DanielSWolf/rhubarb-lip-sync/issues/74))
* **Improved** animation rule for OW sound: animating it as E-F rather than F.
## Version 1.9.1
* **Fixed** segmentation fault on OS X ([issue #65](https://github.com/DanielSWolf/rhubarb-lip-sync/issues/65)).
## Version 1.9.0
* **Added** basic support for non-English recordings through phonetic recognition ([issue #45](https://github.com/DanielSWolf/rhubarb-lip-sync/issues/45)).
* **Improved** processing speed for WAVE files ([issue #58](https://github.com/DanielSWolf/rhubarb-lip-sync/issues/58)).
* **Fixed** a bug that resulted in unwanted mouth movement at beginning of a recording ([issue #53](https://github.com/DanielSWolf/rhubarb-lip-sync/issues/53)).
* **Fixed** a bug that garbled special characters in the output file path ([issue #54](https://github.com/DanielSWolf/rhubarb-lip-sync/issues/54)).
* **Fixed** a bug that prevented the progress bar from reaching 100% ([issue #48](https://github.com/DanielSWolf/rhubarb-lip-sync/issues/48)).
* **Fixed** file paths in exported XML and JSON files ([issue #59](https://github.com/DanielSWolf/rhubarb-lip-sync/issues/59)).
## Version 1.8.0
* **Added** support for Ogg Vorbis (.ogg) file format ([issue #40](https://github.com/DanielSWolf/rhubarb-lip-sync/issues/40)).
* **Fixed** build error with some versions of Boost ([issue #41](https://github.com/DanielSWolf/rhubarb-lip-sync/issues/41)).
## Version 1.7.2
* **Fixed** bug in Rhubarb for Spine where processing failed depending on the number of existing animations ([issue #34](https://github.com/DanielSWolf/rhubarb-lip-sync/issues/34#issuecomment-378198776)).
## Version 1.7.1
* **Added** more helpful error dialogs for internal errors in Rhubarb Lip Sync for Spine.
* **Added**: Internal errors in Rhubarb Lip Sync for Spine are logged to the console (`stderr`).
* **Fixed** generic error message in Rhubarb for Spine ([issue #34](https://github.com/DanielSWolf/rhubarb-lip-sync/issues/34)).
## Version 1.7.0
* **Added** integration with Spine animation software (Rhubarb Lip Sync for Spine).
* **Added** full Unicode support: File names, dialog files, strings in exported files etc. should now be fully Unicode-compatible.
* **Added** `--machineReadable` command-line option to allow for better integration with other applications.
* **Added** `--consoleLevel` command-line option to control how much detail to log to the console (`stderr`).
* **Changed** message output to the console: Unless specified using `--consoleLevel`, only errors and fatal errors are printed to the console. Previously, warnings were also printed.
* **Fixed** segfault with WAVE file containing some initial music before spoken words ([issue #25](https://github.com/DanielSWolf/rhubarb-lip-sync/issues/25))
## Version 1.6.0
* **Added** a script for lip-syncing in Adobe After Effects.
* **Added** `--output` command-line option.
* **Changed** the official spelling of the project: Rhubarb Lip-Sync is now Rhubarb Lip Sync (without the hyphen).
## Version 1.5.0
* **Added** animation code optimizing animation for words containing "to".
* **Improved** animation rules: better animation of ER and AW sounds.
* **Fixed** compilation with Boost 1.56.0+ ([issue #9](https://github.com/DanielSWolf/rhubarb-lip-sync/issues/9)).
## Version 1.4.2
* **Fixed** incorrect animation before some pauses ([issue #7](https://github.com/DanielSWolf/rhubarb-lip-sync/issues/7)).
## Version 1.4.1
* **Fixed** crash with message "Time range start must not be less than end." ([issue #6](https://github.com/DanielSWolf/rhubarb-lip-sync/issues/6))
## Version 1.4.0
* **Added** animation code preventing long static segments.
Watch yourself in a mirror saying "He seized his keys." Your lips barely moved, right? That's exactly what would happen in previous versions of Rhubarb Lip Sync. Only worse: Because there is only one "clenched teeth" mouth shape, the mouth would stay completely static during phrases like this. Rhubarb Lip Sync 1.4.0 now does what [a professional animator would do](http://animateducated.blogspot.de/2016/10/lip-sync-animation-2.html?showComment=1478861729702#c2940729096183546458): It opens the mouth a bit wider for some syllables, keeping the lips moving. This may be cheating, but it looks much better!
* **Improved** animation rules to use wide-open mouth shape more often.
Previous versions used mouth shape D (the wide-open mouth) very sparingly. This release uses it more often, which makes the resulting animation more lively and interesting.
## Version 1.3.0
* **Improved** animation algorithm: Implemented new, bidirectional animation algorithm.
Since version 1.0.0, Rhubarb Lip Sync has used a predictive animation algorithm. That means that in many situations (usually before a vowel), the mouth *anticipates* the upcoming sound. It moves *ahead of time*, resulting in more natural animation.
For version 1.3.0, this core animation algorithm has been re-written from scratch. The new algorithm still anticipates the *next* vowel, but now also considers the *previous* vowel. The resulting animation is even closer to human speech.
* **Added** artistic timing.
Previous versions of Rhubarb Lip Sync have tried to reproduce the timing of the recording as precisely as possible. For rapid speech, this often resulted in jittery animation that didn't look good: It tried to fit too much information into the available time. Traditional animators have known this problem since the 1930s. Instead of slavishly following the timing of the recording, they focus on important sounds and mouth shapes, showing them earlier (and thus longer) than would be realistic. On the other hand, they often skip unimportant sounds and mouth shapes altogether.
Rhubarb Lip Sync 1.3.0 adds a new step in the animation pipeline that emulates this artistic approach. The resulting animation looks much cleaner and smoother. Ironically, it also looks more in-sync than the precise animation created by earlier versions.
* **Added** `--extendedShapes` command-line option.
Previous versions of Rhubarb Lip Sync used a fixed set of eight or nine mouth shapes for animation. If users wanted to use fewer mouth shapes, they had to modify the output, for instance by replacing every "X" shape with an "A". This version of Rhubarb Lip Sync introduces the `--extendedShapes` command-line option that allows the user to specify which mouth shapes should be used. This is not only more convenient; knowing which mouth shapes are actually available also allows Rhubarb Lip Sync to create better animation.
* **Added** `--quiet` mode.
A "quiet" mode has been added. In that mode, Rhubarb Lip Sync doesn't create any output except for animation data and error messages. This is helpful when using Rhubarb Lip Sync as part of an automated process.
* **Improved** animation rules and tweening for better animation.
Animation rules define which mouth shapes can be used to represent a specific sound. For this release, there have been many tweaks to the animation rules, making some sounds look much more convincing. In addition, the rules for inbetweens ("tweening") have been improved. As in traditional animation, the mouth now "pops" open without inbetweens, then closes smoothly.
* **Improved** pause animations.
Pauses in speech are tricky to animate. Early version of Rhubarb Lip Sync always closed the mouth, which looks strange for very short pauses. Later versions kept the mouth open for short pauses, which can also look weird if the first mouth shape *after* the pause is identical to the mouth shape *during* the pause: It looks as if somebody just forgot to animate that part.
This version of Rhubarb Lip Sync uses three different strategies for animating pauses, depending on the duration of the pause and the mouth shapes before and after it.
* **Fixed** bugs in the grapheme-to-phoneme algorithm.
Rhubarb Lip Sync comes with a huge dictionary containing pronunciations for more than 100,000 English words. If the dialog text contains words not found in this dictionary, Rhubarb Lip Sync will try to guess the correct pronunciation. I've fixed several bugs in the G2P algorithm that does this. As a result, using the `--dialogFile` option now results in even better animation.
## Version 1.2.0
* **Improved** dialog handling to allow for incorrect input dialog.
Since version 1.0.0, Rhubarb Lip Sync can handle situations where the dialog text is specified (using the `-dialogFile` option), but the actual recording omits some words. For instance, the specified dialog text can be "That's all gobbledygook to me," but the recording only says "That's gobbledygook to me," dropping the word "all."
Until now, however, Rhubarb Lip Sync couldn't handle *changed* or *inserted* words, such as a recording saying "That's *just* gobbledygook to me." This restriction has been removed. As of version 1.2.0, the actual recording may freely deviate from the specified dialog text. Rhubarb Lip Sync will ignore the dialog file where it audibly differs from the recording, and benefit from it where it matches.
## Version 1.1.0
* **Improved** speech recognition to be more reliable.
The first step in automatic lip sync is speech recognition.
Rhubarb Lip Sync 1.1.0 recognizes spoken dialog more accurately, especially at the beginning of recordings.
This improves the overall quality of the resulting animation.
* **Improved** breath detection to be more accurate.
Rhubarb Lip Sync animates not only dialog, but also noises such as taking a breath.
For this version, the accuracy of breath detection has been improved.
You shouldn't see actors opening their mouth for no reason any more.
* **Improved** animation of short pauses.
During short pauses between words or sentences (up to 0.35s), the mouth is kept open.
Now, this open mouth shape is chosen based on the previous and following mouth shapes.
This gives pauses in speech a more natural, less mechanical look.
* **Added** capability to build on Linux
In addition to Windows and OS X, Rhubarb Lip Sync can now be built on Linux systems.
I'm not offering binary distributions for Linux at this time.
To build the application yourself, you need CMake, Boost, and a C++14-compatible compiler.
## Version 1.0.0
* **Improved** animation algorithm: More realistic animation using new, predictive algorithm.
* **Added** tweening for smoother animation.
* **Added** support for non-dialog noises (breathing, smacking, etc.)
* **Improved** processing speed substantially through multithreading.
* **Improved** reliability of voice recognition.
* **Added** support for long recordings (I've tested a 30-minute file).
* **Added** capability to handle recording that deviate from the specified dialog text.
* **Added** capability to handle unknown words as well as numbers, abbreviations, etc. in the specified dialog text.
## Version 0.2.0
* **Added** multiple output formats: TSV, XML, JSON.
* **Added** experimental option to supply dialog text.
* **Improved** error handling and error messages.
## Version 0.1.0
* **Added** two-pass phone detection using [CMU PocketSphinx](http://cmusphinx.sourceforge.net/).
* **Added** fixed set of eight mouth shapes, based on the Hanna-Barbera shapes.
* **Added** naive (but well-tuned) mapping from phones to mouth shapes.

View File

@ -1,476 +1,41 @@
cmake_minimum_required(VERSION 3.2)
cmake_minimum_required(VERSION 3.24)
# Support legacy OS X versions
set(CMAKE_OSX_DEPLOYMENT_TARGET "10.7" CACHE STRING "Minimum OS X deployment version")
set(appName "Rhubarb Lip Sync")
set(appVersionMajor 1)
set(appVersionMinor 6)
set(appVersionPatch 0)
set(appVersionSuffix "")
set(appVersion "${appVersionMajor}.${appVersionMinor}.${appVersionPatch}${appVersionSuffix}")
include(appInfo.cmake)
project(${appName})
# Enable C++14
if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU" OR "${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang" OR "${CMAKE_CXX_COMPILER_ID}" STREQUAL "AppleClang")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++14")
endif()
# Build and install main executable
add_subdirectory(rhubarb)
# Enable POSIX threads
if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -pthread -lpthread")
endif()
# Build and install extras
add_subdirectory("extras/AdobeAfterEffects")
add_subdirectory("extras/MagixVegas")
add_subdirectory("extras/EsotericSoftwareSpine")
# Make sure Xcode uses libc++ instead of libstdc++, allowing us to use the C++14 standard library prior to OS X 10.9
if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "AppleClang")
add_compile_options(-stdlib=libc++)
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -stdlib=libc++")
endif()
# Use static run-time
if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "MSVC")
add_compile_options(/MT$<$<CONFIG:Debug>:d>)
endif()
# Set global flags and define flags variables for later use
if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU" OR "${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
set(enableWarningsFlags "-Wall;-Wextra")
set(disableWarningsFlags "-w")
elseif("${CMAKE_CXX_COMPILER_ID}" STREQUAL "MSVC")
set(enableWarningsFlags "/W4")
set(disableWarningsFlags "/W0")
# Disable warning C4456: declaration of '...' hides previous local declaration
# I'm doing that on purpose.
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /wd4458")
# Assume UTF-8 encoding for source files and encode string constants in UTF-8
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /utf-8")
endif()
if(${UNIX})
add_definitions(-DHAVE_UNISTD_H)
endif()
# Enable project folders
set_property(GLOBAL PROPERTY USE_FOLDERS ON)
# Define libraries
# ... Boost
set(Boost_USE_STATIC_LIBS ON) # Use static libs
set(Boost_USE_MULTITHREADED ON) # Enable multithreading support
set(Boost_USE_STATIC_RUNTIME ON) # Use static C++ runtime
find_package(Boost 1.54 REQUIRED COMPONENTS filesystem locale system)
include_directories(SYSTEM ${Boost_INCLUDE_DIRS})
link_libraries(${Boost_LIBRARIES}) # Just about every project needs Boost
# ... C++ Format
FILE(GLOB cppFormatFiles "lib/cppformat/*.cc")
add_library(cppFormat ${cppFormatFiles})
target_include_directories(cppFormat SYSTEM PUBLIC "lib/cppformat")
target_compile_options(cppFormat PRIVATE ${disableWarningsFlags})
set_target_properties(cppFormat PROPERTIES FOLDER lib)
# ... sphinxbase
FILE(GLOB_RECURSE sphinxbaseFiles "lib/sphinxbase-rev13216/src/libsphinxbase/*.c")
add_library(sphinxbase ${sphinxbaseFiles})
target_include_directories(sphinxbase SYSTEM PUBLIC
"lib/sphinxbase-rev13216/include"
"lib/sphinxbase-rev13216/src"
"lib/sphinx_config"
)
target_compile_options(sphinxbase PRIVATE ${disableWarningsFlags})
target_compile_definitions(sphinxbase PUBLIC __SPHINXBASE_EXPORT_H__=1 SPHINXBASE_EXPORT=) # Compile as static lib
set_target_properties(sphinxbase PROPERTIES FOLDER lib)
# ... PocketSphinx
FILE(GLOB pocketSphinxFiles "lib/pocketsphinx-rev13216/src/libpocketsphinx/*.c")
add_library(pocketSphinx ${pocketSphinxFiles})
target_include_directories(pocketSphinx SYSTEM PUBLIC
"lib/pocketsphinx-rev13216/include"
"lib/pocketsphinx-rev13216/src/libpocketsphinx"
)
target_link_libraries(pocketSphinx sphinxbase)
target_compile_options(pocketSphinx PRIVATE ${disableWarningsFlags})
target_compile_definitions(pocketSphinx PUBLIC __POCKETSPHINX_EXPORT_H__=1 POCKETSPHINX_EXPORT=) # Compile as static lib
set_target_properties(pocketSphinx PROPERTIES FOLDER lib)
# ... TCLAP
include_directories(SYSTEM "lib/tclap-1.2.1/include")
# ... Google Test
add_subdirectory("lib/googletest")
set_target_properties(gmock PROPERTIES FOLDER lib)
set_target_properties(gmock_main PROPERTIES FOLDER lib)
set_target_properties(gtest PROPERTIES FOLDER lib)
set_target_properties(gtest_main PROPERTIES FOLDER lib)
# ... GSL
include_directories(SYSTEM "lib/gsl/include")
# ... WebRTC
set(webRtcFiles
lib/webrtc-8d2248ff/webrtc/common_audio/signal_processing/cross_correlation.c
lib/webrtc-8d2248ff/webrtc/common_audio/signal_processing/division_operations.c
lib/webrtc-8d2248ff/webrtc/common_audio/signal_processing/downsample_fast.c
lib/webrtc-8d2248ff/webrtc/common_audio/signal_processing/energy.c
lib/webrtc-8d2248ff/webrtc/common_audio/signal_processing/get_scaling_square.c
lib/webrtc-8d2248ff/webrtc/common_audio/signal_processing/min_max_operations.c
lib/webrtc-8d2248ff/webrtc/common_audio/signal_processing/resample_48khz.c
lib/webrtc-8d2248ff/webrtc/common_audio/signal_processing/resample_by_2_internal.c
lib/webrtc-8d2248ff/webrtc/common_audio/signal_processing/resample_fractional.c
lib/webrtc-8d2248ff/webrtc/common_audio/signal_processing/spl_init.c
lib/webrtc-8d2248ff/webrtc/common_audio/signal_processing/spl_inl.c
lib/webrtc-8d2248ff/webrtc/common_audio/signal_processing/vector_scaling_operations.c
lib/webrtc-8d2248ff/webrtc/common_audio/vad/vad_core.c
lib/webrtc-8d2248ff/webrtc/common_audio/vad/vad_filterbank.c
lib/webrtc-8d2248ff/webrtc/common_audio/vad/vad_gmm.c
lib/webrtc-8d2248ff/webrtc/common_audio/vad/vad_sp.c
lib/webrtc-8d2248ff/webrtc/common_audio/vad/webrtc_vad.c
)
add_library(webRtc ${webRtcFiles})
target_include_directories(webRtc SYSTEM PUBLIC "lib/webrtc-8d2248ff")
target_compile_options(webRtc PRIVATE ${disableWarningsFlags})
if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
target_compile_options(webRtc PRIVATE -pthread -lpthread)
endif()
if (NOT WIN32)
target_compile_definitions(webRtc PRIVATE WEBRTC_POSIX)
endif()
set_target_properties(webRtc PROPERTIES FOLDER lib)
# ... whereami
add_library(whereami lib/whereami/src/whereami.c)
target_include_directories(whereami SYSTEM PUBLIC "lib/whereami/src")
set_target_properties(whereami PROPERTIES FOLDER lib)
# ... Flite
set(fliteFiles
lib/flite-1.4/lang/cmulex/cmu_lex.c
lib/flite-1.4/lang/cmulex/cmu_lex_data.c
lib/flite-1.4/lang/cmulex/cmu_lex_entries.c
lib/flite-1.4/lang/cmulex/cmu_lts_model.c
lib/flite-1.4/lang/cmulex/cmu_lts_rules.c
lib/flite-1.4/lang/cmulex/cmu_postlex.c
lib/flite-1.4/lang/usenglish/us_aswd.c
lib/flite-1.4/lang/usenglish/us_dur_stats.c
lib/flite-1.4/lang/usenglish/us_durz_cart.c
lib/flite-1.4/lang/usenglish/us_expand.c
lib/flite-1.4/lang/usenglish/us_f0_model.c
lib/flite-1.4/lang/usenglish/us_f0lr.c
lib/flite-1.4/lang/usenglish/us_ffeatures.c
lib/flite-1.4/lang/usenglish/us_gpos.c
lib/flite-1.4/lang/usenglish/us_int_accent_cart.c
lib/flite-1.4/lang/usenglish/us_int_tone_cart.c
lib/flite-1.4/lang/usenglish/us_nums_cart.c
lib/flite-1.4/lang/usenglish/us_phoneset.c
lib/flite-1.4/lang/usenglish/us_phrasing_cart.c
lib/flite-1.4/lang/usenglish/us_pos_cart.c
lib/flite-1.4/lang/usenglish/us_text.c
lib/flite-1.4/lang/usenglish/usenglish.c
lib/flite-1.4/src/audio/au_none.c
lib/flite-1.4/src/audio/au_streaming.c
lib/flite-1.4/src/audio/audio.c
lib/flite-1.4/src/hrg/cst_ffeature.c
lib/flite-1.4/src/hrg/cst_item.c
lib/flite-1.4/src/hrg/cst_relation.c
lib/flite-1.4/src/hrg/cst_utterance.c
lib/flite-1.4/src/lexicon/cst_lexicon.c
lib/flite-1.4/src/lexicon/cst_lts.c
lib/flite-1.4/src/regex/cst_regex.c
lib/flite-1.4/src/regex/regexp.c
lib/flite-1.4/src/speech/cst_lpcres.c
lib/flite-1.4/src/speech/cst_track.c
lib/flite-1.4/src/speech/cst_wave.c
lib/flite-1.4/src/speech/cst_wave_io.c
lib/flite-1.4/src/speech/cst_wave_utils.c
lib/flite-1.4/src/speech/rateconv.c
lib/flite-1.4/src/stats/cst_cart.c
lib/flite-1.4/src/synth/cst_ffeatures.c
lib/flite-1.4/src/synth/cst_phoneset.c
lib/flite-1.4/src/synth/cst_synth.c
lib/flite-1.4/src/synth/cst_utt_utils.c
lib/flite-1.4/src/synth/cst_voice.c
lib/flite-1.4/src/synth/flite.c
lib/flite-1.4/src/utils/cst_alloc.c
lib/flite-1.4/src/utils/cst_endian.c
lib/flite-1.4/src/utils/cst_error.c
lib/flite-1.4/src/utils/cst_features.c
lib/flite-1.4/src/utils/cst_file_stdio.c
lib/flite-1.4/src/utils/cst_string.c
lib/flite-1.4/src/utils/cst_tokenstream.c
lib/flite-1.4/src/utils/cst_val.c
lib/flite-1.4/src/utils/cst_val_const.c
lib/flite-1.4/src/utils/cst_val_user.c
lib/flite-1.4/src/utils/cst_val_user.c
)
add_library(flite ${fliteFiles})
target_include_directories(flite SYSTEM PUBLIC
"lib/flite-1.4/include"
"lib/flite-1.4"
)
target_compile_options(flite PRIVATE ${disableWarningsFlags})
set_target_properties(flite PROPERTIES FOLDER lib)
# Define Rhubarb libraries
# ... rhubarb-animation
add_library(rhubarb-animation
src/animation/animationRules.cpp
src/animation/animationRules.h
src/animation/mouthAnimation.cpp
src/animation/mouthAnimation.h
src/animation/pauseAnimation.cpp
src/animation/pauseAnimation.h
src/animation/roughAnimation.cpp
src/animation/roughAnimation.h
src/animation/ShapeRule.cpp
src/animation/ShapeRule.h
src/animation/shapeShorthands.h
src/animation/staticSegments.cpp
src/animation/staticSegments.h
src/animation/targetShapeSet.cpp
src/animation/targetShapeSet.h
src/animation/timingOptimization.cpp
src/animation/timingOptimization.h
src/animation/tweening.cpp
src/animation/tweening.h
)
target_include_directories(rhubarb-animation PUBLIC "src/animation")
target_link_libraries(rhubarb-animation
rhubarb-core
rhubarb-logging
rhubarb-time
# Install misc. files
install(
FILES README.adoc LICENSE.md CHANGELOG.md
DESTINATION .
)
# ... rhubarb-audio
add_library(rhubarb-audio
src/audio/AudioClip.cpp
src/audio/AudioClip.h
src/audio/AudioSegment.cpp
src/audio/AudioSegment.h
src/audio/DcOffset.cpp
src/audio/DcOffset.h
src/audio/ioTools.h
src/audio/processing.cpp
src/audio/processing.h
src/audio/SampleRateConverter.cpp
src/audio/SampleRateConverter.h
src/audio/voiceActivityDetection.cpp
src/audio/voiceActivityDetection.h
src/audio/WaveFileReader.cpp
src/audio/WaveFileReader.h
src/audio/waveFileWriting.cpp
src/audio/waveFileWriting.h
)
target_include_directories(rhubarb-audio PUBLIC "src/audio")
target_link_libraries(rhubarb-audio
webRtc
rhubarb-logging
rhubarb-time
rhubarb-tools
)
# ... rhubarb-core
configure_file(src/core/appInfo.cpp.in appInfo.cpp ESCAPE_QUOTES)
add_library(rhubarb-core
${CMAKE_CURRENT_BINARY_DIR}/appInfo.cpp
src/core/appInfo.h
src/core/Phone.cpp
src/core/Phone.h
src/core/Shape.cpp
src/core/Shape.h
)
target_include_directories(rhubarb-core PUBLIC "src/core")
target_link_libraries(rhubarb-core
rhubarb-tools
)
# ... rhubarb-exporters
add_library(rhubarb-exporters
src/exporters/Exporter.h
src/exporters/exporterTools.cpp
src/exporters/exporterTools.h
src/exporters/JsonExporter.cpp
src/exporters/JsonExporter.h
src/exporters/TsvExporter.cpp
src/exporters/TsvExporter.h
src/exporters/XmlExporter.cpp
src/exporters/XmlExporter.h
)
target_include_directories(rhubarb-exporters PUBLIC "src/exporters")
target_link_libraries(rhubarb-exporters
rhubarb-animation
rhubarb-core
rhubarb-time
)
# ... rhubarb-lib
add_library(rhubarb-lib
src/lib/rhubarbLib.cpp
src/lib/rhubarbLib.h
)
target_include_directories(rhubarb-lib PUBLIC "src/lib")
target_link_libraries(rhubarb-lib
rhubarb-animation
rhubarb-audio
rhubarb-core
rhubarb-recognition
rhubarb-time
rhubarb-tools
)
# ... rhubarb-logging
add_library(rhubarb-logging
src/logging/logging.cpp
src/logging/logging.h
)
target_include_directories(rhubarb-logging PUBLIC "src/logging")
target_link_libraries(rhubarb-logging
rhubarb-tools
)
# ... rhubarb-recognition
add_library(rhubarb-recognition
src/recognition/g2p.cpp
src/recognition/g2p.h
src/recognition/languageModels.cpp
src/recognition/languageModels.h
src/recognition/phoneRecognition.cpp
src/recognition/phoneRecognition.h
src/recognition/tokenization.cpp
src/recognition/tokenization.h
)
target_include_directories(rhubarb-recognition PUBLIC "src/recognition")
target_link_libraries(rhubarb-recognition
flite
pocketSphinx
rhubarb-audio
rhubarb-core
rhubarb-logging
)
# ... rhubarb-time
add_library(rhubarb-time
src/time/BoundedTimeline.h
src/time/centiseconds.cpp
src/time/centiseconds.h
src/time/ContinuousTimeline.h
src/time/Timed.h
src/time/timedLogging.h
src/time/Timeline.h
src/time/TimeRange.cpp
src/time/TimeRange.h
)
target_include_directories(rhubarb-time PUBLIC "src/time")
target_link_libraries(rhubarb-time
cppFormat
rhubarb-logging
)
# ... rhubarb-tools
add_library(rhubarb-tools
src/tools/array.h
src/tools/EnumConverter.h
src/tools/exceptions.cpp
src/tools/exceptions.h
src/tools/Lazy.h
src/tools/nextCombination.h
src/tools/NiceCmdLineOutput.cpp
src/tools/NiceCmdLineOutput.h
src/tools/ObjectPool.h
src/tools/pairs.h
src/tools/parallel.h
src/tools/platformTools.cpp
src/tools/platformTools.h
src/tools/ProgressBar.cpp
src/tools/ProgressBar.h
src/tools/stringTools.cpp
src/tools/stringTools.h
src/tools/TablePrinter.cpp
src/tools/TablePrinter.h
src/tools/textFiles.cpp
src/tools/textFiles.h
src/tools/tools.cpp
src/tools/tools.h
src/tools/tupleHash.h
)
target_include_directories(rhubarb-tools PUBLIC "src/tools")
target_link_libraries(rhubarb-tools
cppFormat
whereami
)
# Define Rhubarb executable
add_executable(rhubarb
src/main.cpp
src/ExportFormat.cpp
src/ExportFormat.h
)
target_include_directories(rhubarb PUBLIC "src")
target_link_libraries(rhubarb
rhubarb-exporters
rhubarb-lib
)
target_compile_options(rhubarb PUBLIC ${enableWarningsFlags})
# Define test project
#include_directories("${gtest_SOURCE_DIR}/include")
set(TEST_FILES
tests/stringToolsTests.cpp
tests/TimelineTests.cpp
tests/BoundedTimelineTests.cpp
tests/ContinuousTimelineTests.cpp
tests/pairsTests.cpp
tests/tokenizationTests.cpp
tests/g2pTests.cpp
tests/LazyTests.cpp
)
add_executable(runTests ${TEST_FILES})
target_link_libraries(runTests
gtest
gmock
gmock_main
rhubarb-recognition
rhubarb-time
)
# Configure CPack
function(get_short_system_name variable)
if ("${CMAKE_SYSTEM_NAME}" STREQUAL "Darwin")
set(${variable} "macOS" PARENT_SCOPE)
else()
set(${variable} "${CMAKE_SYSTEM_NAME}" PARENT_SCOPE)
endif()
endfunction()
set(CPACK_PACKAGE_NAME ${appName})
string(REPLACE " " "-" CPACK_PACKAGE_NAME "${CPACK_PACKAGE_NAME}")
if ("${CMAKE_SYSTEM_NAME}" STREQUAL "Darwin")
set(CPACK_SYSTEM_NAME "OSX")
elseif("${CMAKE_SYSTEM_NAME}" STREQUAL "Windows")
set(CPACK_SYSTEM_NAME "Win32")
else()
set(CPACK_SYSTEM_NAME "${CMAKE_SYSTEM_NAME}")
endif()
get_short_system_name(CPACK_SYSTEM_NAME)
set(CPACK_PACKAGE_VERSION_MAJOR ${appVersionMajor})
set(CPACK_PACKAGE_VERSION_MINOR ${appVersionMinor})
set(CPACK_PACKAGE_VERSION_PATCH ${appVersionPatch})
set(CPACK_PACKAGE_VERSION ${appVersion})
set(CPACK_PACKAGE_FILE_NAME "${CPACK_PACKAGE_NAME}-${CPACK_PACKAGE_VERSION}-${CPACK_SYSTEM_NAME}")
string(TOLOWER "${CPACK_PACKAGE_FILE_NAME}" CPACK_PACKAGE_FILE_NAME)
set(CPACK_GENERATOR ZIP)
# Copy resource files at build time; install them at package time
include(tools.cmake)
copy_and_install("${CMAKE_SOURCE_DIR}/lib/pocketsphinx-rev13216/model/en-us/*" "res/sphinx")
copy_and_install("${CMAKE_SOURCE_DIR}/lib/cmusphinx-en-us-5.2/*" "res/sphinx/acoustic-model")
install(
TARGETS rhubarb
RUNTIME
DESTINATION .
)
install(
FILES README.adoc LICENSE.md VERSION.md
DESTINATION .
)
install(
DIRECTORY extras
DESTINATION .
)
# Run CPack
include(CPack)

View File

@ -5,19 +5,19 @@
This summary is not legally binding. The actual license terms are defined by the license texts below.
* Rhubarb Lip Sync is released under the MIT license. All its third-party dependencies (libraries, resources, etc.) are released under the MIT license, a BSD license, or a similar permissive license. This means that you can use Rhubarb Lip Sync in almost any way you want, including the creation of commercial software based on it.
* When you run Rhubarb Lip Sync on an audio file, the resulting lip sync data belongs to you alone. This means that if you use Rhubarb Lip Sync in the production process of a video game, an animated cartoon, or a similar product *that doesn't ship with lip sync functionality*, you don't even have to care about the MIT license.
* When you run Rhubarb Lip Sync on an audio file, the resulting lip sync data belongs to you alone. This means that if you use Rhubarb Lip Sync in the production process of a video game, an animated cartoon, or a similar product *that doesn't ship with lip sync functionality*, you don't even have to care about the MIT license.
## Rhubarb Lip Sync
[Rhubarb Lip Sync](https://github.com/DanielSWolf/rhubarb-lip-sync) is released under the **MIT License (MIT)**.
Copyright (c) 2015-2016 Daniel Wolf
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
> Copyright (c) 2015-2016 Daniel Wolf
>
> Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
>
> The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
>
> THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
## Third-party dependencies
@ -26,9 +26,9 @@ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLI
The [Boost](http://www.boost.org/) libraries are released under the **Boost Software License**.
> Boost Software License - Version 1.0 - August 17th, 2003
>
>
> Permission is hereby granted, free of charge, to any person or organization obtaining a copy of the software and accompanying documentation covered by this license (the "Software") to use, reproduce, display, distribute, execute, and transmit the Software, and to prepare derivative works of the Software, and to permit third-parties to whom the Software is furnished to do so, all subject to the following:
>
>
> The copyright notices in the Software and this entire statement, including the above license grant, this restriction and the following disclaimer, must be included in all copies of the Software, in whole or in part, and all derivative works of the Software, unless such copies or derivative works are solely in the form of machine-executable object code generated by a source language processor.
>
> THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
@ -38,12 +38,12 @@ The [Boost](http://www.boost.org/) libraries are released under the **Boost Soft
The [CMU Sphinx US English acoustic model](https://sourceforge.net/projects/cmusphinx/files/Acoustic%20and%20Language%20Models/US%20English/) is released under a variation of the **2-clause BSD License**.
> Copyright (c) 2015 Alpha Cephei Inc. All rights reserved.
>
>
> Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
>
>
> 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
> 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
>
>
> THIS SOFTWARE IS PROVIDED BY ALPHA CEPHEI INC. ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL ALPHA CEPHEI INC. NOR ITS EMPLOYEES BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
### `[cppformat]` C++ Format
@ -51,14 +51,14 @@ The [CMU Sphinx US English acoustic model](https://sourceforge.net/projects/cmus
The [C++ Format](https://github.com/cppformat/cppformat) library is released under the **2-clause BSD License**.
> Copyright (c) 2012 - 2015, Victor Zverovich
>
>
> All rights reserved.
>
>
> Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
>
>
> 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
> 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
>
>
> THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
### `[flite]` Flite
@ -71,54 +71,57 @@ The [CMU Flite](http://www.festvox.org/flite/) engine is released under a **BSD*
> All Rights Reserved.
>
> Permission is hereby granted, free of charge, to use and distribute this software and its documentation without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of this work, and to permit persons to whom this work is furnished to do so, subject to the following conditions:
>
> 1. The code must retain the above copyright notice, this list of conditions and the following disclaimer.
> 2. Any modifications must be clearly marked as such.
> 3. Original authors' names are not deleted.
> 4. The authors' names are not used to endorse or promote products derived from this software without specific prior written permission.
>
> CARNEGIE MELLON UNIVERSITY AND THE CONTRIBUTORS TO THIS WORK DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY NOR THE CONTRIBUTORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
### `[googletest]` Google Test
The [Google Test](https://github.com/google/googletest) framework is released under the **3-clause BSD License**.
> Copyright 2008, Google Inc.
> All rights reserved.
>
> Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
>
>* Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
> * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
> * Neither the name of Google Inc. nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
>
> THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
### `[gsl]` Guidelines Support Library
The [Guidelines Support Library](https://github.com/Microsoft/GSL) is released under the **MIT License (MIT)**.
> Copyright (c) 2015 Microsoft Corporation. All rights reserved.
>
> This code is licensed under the MIT License (MIT).
>
> Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
>
> The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
>
> Copyright (c) 2015 Microsoft Corporation. All rights reserved.
>
> This code is licensed under the MIT License (MIT).
>
> Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
>
> The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
>
> THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
### `[ogg]` libogg
libogg is released under the **3-clause BSD license**.
> Copyright (c) 2002, Xiph.org Foundation
>
> Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
>
> - Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
>
> - Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
>
> - Neither the name of the Xiph.org Foundation nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
>
> THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
### `[pocketsphinx]` PocketSphinx
The [PocketSphinx](https://github.com/cmusphinx/pocketsphinx) library is released under a variation of the **2-clause BSD License**.
> Copyright (c) 1999-2015 Carnegie Mellon University. All rights reserved.
>
>
> Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
>
>
> 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
> 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
>
>
> This work was supported in part by funding from the Defense Advanced Research Projects Agency and the National Science Foundation of the United States of America, and the CMU Sphinx Speech Consortium.
>
>
> THIS SOFTWARE IS PROVIDED BY CARNEGIE MELLON UNIVERSITY ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY NOR ITS EMPLOYEES BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
### `[soundchange]` Sound Change Applier
@ -126,13 +129,13 @@ The [PocketSphinx](https://github.com/cmusphinx/pocketsphinx) library is release
The [Sound Change Applier](http://www.zompist.com/sounds.htm) and its [rule set for American English](http://www.zompist.com/spell.html) are released under the **MIT License (MIT)**.
> **The MIT License (MIT)**
>
> Copyright (c) 2000 Mark Rosenfelder
>
> Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
>
> The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
>
> THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
### `[sphinxbase]` CMU Sphinx common libraries
@ -140,54 +143,124 @@ The [Sound Change Applier](http://www.zompist.com/sounds.htm) and its [rule set
The [sphinxbase](https://github.com/cmusphinx/sphinxbase) library is released under a variation of the **2-clause BSD License**.
> Copyright (c) 1999-2015 Carnegie Mellon University. All rights reserved.
>
>
> Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
>
> 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
>
> 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
> 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
>
>
> This work was supported in part by funding from the Defense Advanced Research Projects Agency and the National Science Foundation of the United States of America, and the CMU Sphinx Speech Consortium.
>
>
> THIS SOFTWARE IS PROVIDED BY CARNEGIE MELLON UNIVERSITY ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY NOR ITS EMPLOYEES BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
### `[tclap]` Templatized C++ Command Line Parser Library
The [TCLAP](http://tclap.sourceforge.net/) library is released under the **MIT License (MIT)**.
> Copyright (c) 2003 Michael E. Smoot
>
> Copyright (c) 2003 Michael E. Smoot
>
> Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
>
>
> The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
>
>
> THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
### `[utfcpp]` UTF8-CPP
The [UTF8-CPP](https://github.com/nemtrif/utfcpp) library is released under the **Boost Software License**.
> Copyright 2006 Nemanja Trifunovic
>
>Permission is hereby granted, free of charge, to any person or organization obtaining a copy of the software and accompanying documentation covered by this license (the "Software") to use, reproduce, display, distribute, execute, and transmit the Software, and to prepare derivative works of the Software, and to permit third-parties to whom the Software is furnished to do so, all subject to the following:
>
> The copyright notices in the Software and this entire statement, including the above license grant, this restriction and the following disclaimer, must be included in all copies of the Software, in whole or in part, and all derivative works of the Software, unless such copies or derivative works are solely in the form of machine-executable object code generated by a source language processor.
>
> THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
### `[utf8proc]` utf8proc
The [utf8proc](https://github.com/JuliaLang/utf8proc) library is released under the **MIT License (MIT)**, while some of its data is released under the **UNICODE License**.
#### utf8proc license
> **utf8proc** is a software package originally developed by Jan Behrens and the rest of the Public Software Group, who deserve nearly all of the credit for this library, that is now maintained by the Julia-language developers. Like the original utf8proc, whose copyright and license statements are reproduced below, all new work on the utf8proc library is licensed under the [MIT "expat" license](http://opensource.org/licenses/MIT):
>
> *Copyright &copy; 2014-2015 by Steven G. Johnson, Jiahao Chen, Tony Kelman, Jonas Fonseca, and other contributors listed in the git history.*
>
> Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
>
> The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
>
> THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#### Original utf8proc license
> *Copyright (c) 2009, 2013 Public Software Group e. V., Berlin, Germany*
>
> Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
>
> The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
>
> THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#### Unicode data license
> This software distribution contains derived data from a modified version of the Unicode data files. The following license applies to that data:
>
> **COPYRIGHT AND PERMISSION NOTICE**
>
> *Copyright (c) 1991-2007 Unicode, Inc. All rights reserved. Distributed under the Terms of Use in http://www.unicode.org/copyright.html.*
>
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>
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### `[vorbis]` libvorbis
libvorbis is released under the **3-clause BSD license**.
> Copyright (c) 2002-2018 Xiph.org Foundation
>
> Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
>
> - Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
>
> - Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
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> - Neither the name of the Xiph.org Foundation nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
>
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### `[webrtc]` WebRTC
The [WebRTC](https://chromium.googlesource.com/external/webrtc) library is released under the **3-clause BSD License**.
> Copyright (c) 2011, The WebRTC project authors. All rights reserved.
>
> Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
>
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> * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
> * Neither the name of Google nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
>
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### `[whereami]` Where Am I?
The [Where Am I?](https://github.com/gpakosz/whereami) library is released under the **DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE**.
> DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
> Version 2, December 2004
> DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
> Version 2, December 2004
>
> Copyright (C) 2004 Sam Hocevar <sam@hocevar.net>
> Copyright (C) 2004 Sam Hocevar <sam@hocevar.net>
>
> Everyone is permitted to copy and distribute verbatim or modified copies of this license document, and changing it is allowed as long as the name is changed.
> Everyone is permitted to copy and distribute verbatim or modified copies of this license document, and changing it is allowed as long as the name is changed.
>
> DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
> DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
>
> 0. You just DO WHAT THE FUCK YOU WANT TO.
> 1. Bla bla bla

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@ -1,3 +1,7 @@
= Rhubarb Lip Sync
:toc:
:icons: font
:A: &#9398;
:B: &#9399;
:C: &#9400;
@ -8,8 +12,8 @@
:H: &#9405;
:X: &#9421;
image:https://img.shields.io/travis/DanielSWolf/rhubarb-lip-sync/master.svg["Build Status", link="https://travis-ci.org/DanielSWolf/rhubarb-lip-sync"]
image:https://img.shields.io/twitter/follow/RhubarbLipSync.svg?style=social&label=Follow["Twitter", link="https://twitter.com/RhubarbLipSync"]
image:https://github.com/DanielSWolf/rhubarb-lip-sync/actions/workflows/ci.yml/badge.svg["Build status", link="https://github.com/DanielSWolf/rhubarb-lip-sync/actions/workflows/ci.yml"]
---
@ -17,9 +21,17 @@ image:img/logo.png[align="center"]
---
https://github.com/DanielSWolf/rhubarb-lip-sync[Rhubarb Lip Sync] is a command-line tool that automatically creates 2D mouth animation from voice recordings. You can use it for animating speech in computer games, animated cartoons, or any similar project.
Rhubarb Lip Sync allows you to quickly create 2D mouth animation from voice recordings. It analyzes your audio files, recognizes what is being said, then automatically generates lip sync information. You can use it for animating speech in computer games, animated cartoons, or any similar project.
Rhubarb Lip Sync produces text files in various <<outputFormats,output formats>> (<<tsv,TSV>>/<<xml,XML>>/<<json,JSON>>). In addition, it comes with integrations for <<afterEffects,Adobe After Effects>> and <<vegas,Magix Vegas>>.
Rhubarb Lip Sync integrates with the following applications:
* *Adobe After Effects* (see <<afterEffects,below>>)
* *Moho* and *OpenToonz* (see <<moho,below>>)
* *Spine* by Esoteric Software (see <<spine,below>>)
* *Vegas Pro* by Magix (see <<vegas,below>>)
* *Visionaire Studio* (see https://www.visionaire-studio.net/forum/thread/mouth-animation-using-rhubarb-lip-sync[external link])
In addition, you can use Rhubarb Lip Sync's command line interface (*CLI*) to generate files in various <<outputFormats,output formats>> (<<tsv,TSV>>/<<xml,XML>>/<<json,JSON>>).
== Demo video
@ -27,6 +39,36 @@ Click the image for a demo video.
https://www.youtube.com/watch?v=zzdPSFJRlEo[image:http://img.youtube.com/vi/zzdPSFJRlEo/0.jpg[]]
== Integrations
[[afterEffects]]
=== Adobe After Effects
You can use Rhubarb Lip Sync to animate dialog right from Adobe After Effects. For more information, <<extras/AdobeAfterEffects/README.adoc#,follow this link>> or see the directory `extras/AdobeAfterEffects`.
image:img/after-effects.png[]
[[moho]]
=== Moho and OpenToonz
Rhubarb Lip Sync can create .dat switch data files, which are understood by Moho and OpenToonz. You can set the frame rate using the `--datFrameRate` option; to control the shape names, use the `--datUsePrestonBlair` flag. For more details, see <<options>>.
image:img/moho.png[]
[[spine]]
=== Spine by Esoteric Software
Rhubarb Lip Sync for Spine is a graphical tool that allows you to import a Spine project, perform automatic lip sync, then re-import the result into Spine. For more information, <<extras/EsotericSoftwareSpine/README.adoc#,follow this link>> or see the directory `extras/EsotericSoftwareSpine` of the download.
image:img/spine.png[]
[[vegas]]
=== Vegas Pro by Magix
Rhubarb Lip Sync also comes with two plugin scripts for Vegas Pro (previously Sony Vegas). For more information, <<extras/MagixVegas/README.adoc#,follow this link>> or see the directory `extras/MagixVegas` of the download.
image:img/vegas.png[]
[[mouth-shapes]]
== Mouth shapes
@ -79,30 +121,40 @@ This shape is also used as an in-between when animating from {C} or {D} to {F}.
=== General usage ===
Rhubarb Lip Sync is a command-line tool that is currently available for Windows and OS X.
Rhubarb Lip Sync is a command-line tool that is currently available for Windows, macOS, and Linux.
* Download the https://github.com/DanielSWolf/rhubarb-lip-sync/releases[latest release] and unzip the file anywhere on your computer.
* Call `rhubarb`, passing it a WAVE file as argument and telling it where to create the output file. In its simplest form, this might look like this: `rhubarb -o output.txt my-recording.wav`. There are additional <<options,command-line options>> you can specify in order to get better results.
* Rhubarb Lip Sync will analyze the sound file, animate it, and create an output file containing the animation. If an error occurs, Rhubarb Lip Sync will instead print an error message to `stderr` and exit with a non-zero exit code.
* Download the https://github.com/DanielSWolf/rhubarb-lip-sync/releases[latest release] for your operating system and unpack the file anywhere on your computer.
* On the command-line, call `rhubarb`, passing it an audio file as argument and telling it where to create the output file. In its simplest form, this might look like this: `rhubarb -o output.txt my-recording.wav`. There are additional <<options,command-line options>> you can specify in order to get better results.
* Rhubarb Lip Sync will analyze the sound file, animate it, and create an output file containing the animation. If an error occurs, it will instead print an error message to `stderr` and exit with a non-zero exit code.
[[options]]
=== Command-line options ===
The following is a complete list of available command-line options.
==== Basic command-line options ====
[cols="2,5"]
The following command-line options are the most common:
[cols="2,5a"]
|===
| Option | Description
| _<input file>_
| The audio file to be analyzed. This must be the last command-line argument. Supported file formats are WAVE (.wav) and Ogg Vorbis (.ogg).
| `-r` _<recognizer>_, `--recognizer` _<recognizer>_
| Specifies how Rhubarb Lip Sync recognizes speech within the recording. Options: `pocketSphinx` (use for English recordings), `phonetic` (use for non-English recordings). For details, see <<recognizers>>.
_Default value: ``pocketSphinx``_
| `-f` _<format>_, `--exportFormat` _<format>_
| The export format. Options: `tsv` (tab-separated values, see <<tsv,details>>), `xml` (see <<xml,details>>), `json` (see <<json,details>>).
| The export format. Options: `tsv` (tab-separated values, see <<tsv,details>>), `xml` (see <<xml,details>>), `json` (see <<json,details>>), `dat` (see <<moho>>).
_Default value: ``tsv``_
| `-d` _<path>_, `--dialogFile` _<path>_
| This option is meant for situations where you know the dialog text in advance. Specify a plain-text file (in ASCII or UTF-8 format) containing just the dialog of the audio file. Rhubarb Lip Sync will still perform word recognition internally, but it will prefer words and phrases that occur in the dialog file. This leads to better recognition results and thus more reliable animation.
| With this option, you can provide Rhubarb Lip Sync with the dialog text to get more reliable results. Specify the path to a plain-text file (in ASCII or UTF-8 format) containing the dialog contained in the audio file. Rhubarb Lip Sync will still perform word recognition internally, but it will prefer words and phrases that occur in the dialog file. This leads to better recognition results and thus more reliable animation.
For instance, let's say you're recording dialog for a computer game. The script says: "`That's all gobbledygook to me.`" But actually, the voice artist ends up saying "`That's _just_ gobbledygook to me,`" slightly changing the dialog. If you specify a dialog file with the original line ("`That's all gobbledygook to me`"), this will still allow Rhubarb Lip Sync to produce better results. Rhubarb Lip Sync will ignore the dialog file where it audibly differs from the recording, and benefit from it where it matches.
For instance, let's say you're recording dialog for a computer game. The script says: "`That's all gobbledygook to me.`" But actually, the voice artist ends up saying "`That's _just_ gobbledygook to me,`" deviating from the dialog. If you specify a dialog file with the original line ("`That's all gobbledygook to me`"), this will still allow Rhubarb Lip Sync to produce better results, because it will watch out for the uncommon word "`gobbledygook`". Rhubarb Lip Sync will ignore the dialog file where it audibly differs from the recording, and benefit from it where it matches.
_It is always a good idea to specify the dialog text. This will usually lead to more reliable mouth animation, even if the text is not completely accurate._
@ -112,24 +164,6 @@ _It is always a good idea to specify the dialog text. This will usually lead to
_Default value: ``GHX``_
| `--threads` _<number>_
| Rhubarb Lip Sync uses multithreading to speed up processing. By default, it creates as many worker threads as there are cores on your CPU, which results in optimal processing speed. You may choose to specify a lower number if you feel that Rhubarb Lip Sync is slowing down other applications. Specifying a higher number is not recommended, as it won't result in any additional speed-up.
Note that for short audio files, Rhubarb Lip Sync may choose to use fewer threads than specified.
_Default value: as many threads as your CPU has cores_
| `-q`, `--quiet`
| By default, Rhubarb Lip Sync writes a number of progress messages to `stderr`. If you're using it as part of a batch process, this may clutter your console. If you specify the `--quiet` flag, there won't be any output to `stderr` unless an error occurred.
| `--logFile` _<path>_
| Creates a log file with diagnostic information at the specified path.
|`--logLevel` _<level>_
| Sets the log level for the log file. Options: `trace`, `debug`, `info`, `warning`, `error`, `fatal`.
_Default value: ``debug``_
| `-o`, `--output` _<output file>_
| The name of the output file to create. If the file already exists, it will be overwritten. If you don't specify an output file, the result will be written to `stdout`.
@ -139,10 +173,88 @@ _Default value: ``debug``_
| `-h`, `--help`
| Displays usage information and exits.
| _<input file>_
| The input file to be analyzed. Must be an sound file in WAVE format.
| `--datFrameRate` _number_
| Only valid when using the `dat` export format. Controls the frame rate for the output file.
_Default value: 24_
| `--datUsePrestonBlair`
| Only valid when using the `dat` export format. Uses Preston Blair mouth shapes names instead of the default alphabetical ones. This applies the following mapping:
!===
! Alphabetic name ! Preston Blair name
! A ! MBP
! B ! etc
! C ! E
! D ! AI
! E ! O
! F ! U
! G ! FV
! H ! L
! X ! rest
!===
*Caution:* This mapping is only applied when exporting, _after_ the recording has been animated. To control which mouth shapes to use, use the <<extendedShapes,`extendedShapes`>> option _with the alphabetic names_.
*Tip:* For optimal results, make sure your mouth drawings follow the guidelines in the <<mouth-shapes>> section. This is easier if you stick to the alphabetic names instead of the Preston Blair names. The only situation where you _need_ to use the Preston Blair names is when you're using OpenToonz, because OpenToonz only supports the Preston Blair names.
|===
==== Advanced command-line options ====
The following command-line options can be helpful in special situations, especially when automating Rhubarb Lip Sync.
[cols="2,5"]
|===
| Option | Description
[[quiet]]
| `-q`, `--quiet`
| By default, Rhubarb Lip Sync writes a number of progress messages to `stderr`. If you're using it as part of a batch process, this may clutter your console. If you specify the `--quiet` flag, there won't be any output to `stderr` unless an error occurred.
You can combine this option with the <<consoleLevel,`consoleLevel`>> option to change the minimum event level that is printed to `stderr`.
| `--machineReadable`
a| This option is useful if you want to integrate Rhubarb Lip Sync with another (possibly graphical) application. All status messages to `stderr` will be in structured JSON format, allowing your program to parse them and display a graphical progress bar or something similar. For details, see <<machineReadable,Machine-readable status messages>>.
[[consoleLevel]]
| `--consoleLevel` _<level>_
| Sets the log level for reporting to the console (`stderr`). Options: `trace`, `debug`, `info`, `warning`, `error`, `fatal`.
If <<quiet,`--quiet`>> is also specified, only events with the specified level or higher will be printed. Otherwise, a small number of essential events (startup, progress, etc.) will be printed even if their levels are below the specified value.
_Default value: ``error``_
| `--logFile` _<path>_
| Creates a log file with diagnostic information at the specified path.
|`--logLevel` _<level>_
| Sets the log level for the log file. Only events with the specified level or higher will be logged. Options: `trace`, `debug`, `info`, `warning`, `error`, `fatal`.
_Default value: ``debug``_
| `--threads` _<number>_
| Rhubarb Lip Sync uses multithreading to speed up processing. By default, it creates as many worker threads as there are cores on your CPU, which results in optimal processing speed. You may choose to specify a lower number if you feel that Rhubarb Lip Sync is slowing down other applications. Specifying a higher number is not recommended, as it won't result in any additional speed-up.
Note that for short audio files, Rhubarb Lip Sync may choose to use fewer threads than specified.
_Default value: as many threads as your CPU has cores_
|===
[[recognizers]]
== Recognizers
The first step in processing an audio file is determining what is being said. More specifically, Rhubarb Lip Sync uses speech recognition to figure out what sound is being said at what point in time. You can choose between two recognizers:
=== PocketSphinx
PocketSphinx is an open-source speech recognition library that generally gives good results. This is the default recognizer. The downside is that PocketSphinx only recognizes English dialog. So if your recordings are in a language other than English, this is not a good choice.
=== Phonetic
Rhubarb Lip Sync also comes with a phonetic recognizer. _Phonetic_ means that this recognizer won't try to understand entire (English) words and phrases. Instead, it will recognize individual sounds and syllables. The results are usually less precise than those from the PocketSphinx recognizer. The advantage is that this recognizer is language-independent. Use it if your recordings are not in English.
[[outputFormats]]
== Output formats
@ -220,37 +332,77 @@ JSON format is very similar to <<xml,XML format>>. The choice mainly depends on
There is nothing surprising here; everything said about XML format applies to JSON, too.
== Integrations
[[machineReadable]]
== Machine-readable status messages
[[afterEffects]]
=== Adobe After Effects
Use the `--machineReadable` command-line option to enable machine-readable status messages. In this mode, each line printed to `stderr` will be an object in JSON format. Every object contains the following:
You can use Rhubarb Lip Sync to animate dialog right from Adobe After Effects. For more information, see the `extras` directory of the download.
* Property `type`: The type of the event. Currently, one of `"start"` (application start), `"progress"` (numeric progress), `"success"` (successful termination), `"failure"` (unsuccessful termination), and `"log"` (a log message without structured information).
* Event-specific structured data. For instance, a `"progress"` event contains the property `value` with a numeric value between 0.0 and 1.0.
* Property `log`: A log message describing the event, plus severity information. If you aren't interested in the structured data, you can display this as a fallback. For instance, a `"progress"` event with the structured information `"value": 0.69` may contain the following redundant log message: `"Progress: 69%"`.
image:img/after-effects.png[]
You can combine this option with the <<consoleLevel,`consoleLevel`>> option. Note, however, that this only affects unstructured events of type `"log"` (not to be confused with the `log` property each event contains).
[[vegas]]
=== Magix Vegas
The following is an example output to `stderr` from a _successful_ run:
Rhubarb Lip Sync also comes with two plugin scripts for Magix Vegas (previously Sony Vegas). For more information, see the `extras` directory of the download.
[source,json]
----
{ "type": "start", "file": "hi.wav", "log": { "level": "Info", "message": "Application startup. Input file: \"hi.wav\"." } }
{ "type": "progress", "value": 0.00, "log": { "level": "Trace", "message": "Progress: 0%" } }
{ "type": "progress", "value": 0.01, "log": { "level": "Trace", "message": "Progress: 1%" } }
{ "type": "progress", "value": 0.03, "log": { "level": "Trace", "message": "Progress: 3%" } }
{ "type": "progress", "value": 0.06, "log": { "level": "Trace", "message": "Progress: 6%" } }
{ "type": "progress", "value": 0.69, "log": { "level": "Trace", "message": "Progress: 68%" } }
{ "type": "progress", "value": 1.00, "log": { "level": "Trace", "message": "Progress: 100%" } }
// Result data, printed to stdout...
{ "type": "success", "log": { "level": "Info", "message": "Application terminating normally." } }
----
image:img/vegas.png[]
The following is an example output to `stderr` from a _failed_ run:
== Limitations
[source,json]
----
{ "type": "start", "file": "no-such-file.wav", "log": { "level": "Info", "message": "Application startup. Input file: \"no-such-file.wav\"." } }
{ "type": "failure", "reason": "Error processing file \"no-such-file.wav\".\nCould not open sound file \"no-such-file.wav\".\nNo such file or directory", "log": { "level": "Fatal", "message": "Application terminating with error: Error processing file \"no-such-file.wav\".\nCould not open sound file \"no-such-file.wav\".\nNo such file or directory" } }
----
Rhubarb Lip Sync has some limitations you should be aware of.
Note that the output format <<Versioning,adheres to SemVer>>. That means that the JSON output created after a minor upgrade will still be compatible. Note, however, that the following kinds of changes may occur at any time, because I consider them non-breaking:
=== English only
* Additional types of progress events. Just ignore those events whose types you do not know or use their unstructured `log` property.
* Additional properties in any object. Just ignore properties you aren't interested in.
* Changes in JSON formatting, such as a re-ordering of properties or changes in whitespaces (except for line breaks -- every event will remain on a singe line)
* Fewer or more events of type `"log"` or changes in the wording of log messages
Rhubarb Lip Sync only produces good results when you give it recordings in English. You'll get best results with American English.
[[versioning]]
== Versioning (SemVer)
=== 2D animation only
Rhubarb Lip Sync uses Semantic Versioning (SemVer) for its command-line interface. For general information on Semantic Versioning, have a look at the http://semver.org/[official SemVer website].
Rhubarb Lip Sync tries to imitate the animation style used in classic 2D animated cartoons. The results look stylized, and that's intentional. If you're working on a realistic 3D game or movie, Rhubarb Lip Sync may not be the best choice.
As a rule of thumb, everything you can use through the command-line interface adheres to SemVer. Everything else (i.e., the source code, integrations with third-party software, etc.) does not.
== Tell me what you think!
[[building-from-source]]
== Building from source
I'd love to hear from you!
To use Rhubarb Lip Sync on Windows, macOS, or Linux, you can just download the binary release for your operating system. If you want to modify the code or use Rhubarb on a less-common operating system, this section describes how to build it yourself.
* Have you created something great using Rhubarb Lip Sync? *https://twitter.com/RhubarbLipSync[Let me know on Twitter!]*
* Do you need help? Have you spotted a bug? Do you have a suggestion? *https://github.com/DanielSWolf/rhubarb-lip-sync/issues[Create an issue!]*
You'll need the following software installed:
* CMake 3.10+
* A C{plus}{plus} compiler that supports C{plus}{plus}17 +
(Rhubarb Lip Sync is regularly built using Visual Studio 2019, Xcode 14, GCC 10, and Clang 12.)
* A current version of Boost
* JDK 8.x (for building Rhubarb for Spine)
Then, follow these steps:
. Create an empty directory `/build` within the Rhubarb repository
. Move to the new `/build` directory
. Configure CMake by running `cmake ..` +
Optionally, pass flags for setting the generator, compiler etc.. For working examples, see `.github\workflows\ci.yml`.
. Build Rhubarb Lip Sync by running `cmake --build . --config Release`
== I'd love to hear from you!
Have you created something great using Rhubarb Lip Sync? -- *https://twitter.com/RhubarbLipSync[Let me know on Twitter]* or *send me an email* at +++&#100;&#119;&#111;&#108;&#102;&#064;&#100;&#097;&#110;&#110;&#097;&#100;&#046;&#100;&#101;+++!
Do you need help? Have you spotted a bug? Do you have a suggestion? -- *https://github.com/DanielSWolf/rhubarb-lip-sync/issues[Create an issue!]*

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@ -1,124 +0,0 @@
# Version history
## Version 1.6.0
* Added a script for lip-syncing in Adobe After Effects.
* Added `--output` command-line option.
* Dropped the hyphen: Rhubarb Lip-Sync is now Rhubarb Lip Sync.
## Version 1.5.0
* Improved animation rules for ER and AW sounds
* Optimized animation for words containing "to"
* Fixed [issue #9](https://github.com/DanielSWolf/rhubarb-lip-sync/issues/9): Fails to compile with Boost 1.56.0+
## Version 1.4.2
* Fixed [issue #7](https://github.com/DanielSWolf/rhubarb-lip-sync/issues/7): Incorrect animation before some pauses
## Version 1.4.1
* Fixed [issue #6](https://github.com/DanielSWolf/rhubarb-lip-sync/issues/6): Crash with message "Time range start must not be less than end."
## Version 1.4.0
* **Preventing long static segments**
Watch yourself in a mirror saying "He seized his keys." Your lips barely moved, right? That's exactly what would happen in previous versions of Rhubarb Lip Sync. Only worse: Because there is only one "clenched teeth" mouth shape, the mouth would stay completely static during phrases like this. Rhubarb Lip Sync 1.4.0 now does what [a professional animator would do](http://animateducated.blogspot.de/2016/10/lip-sync-animation-2.html?showComment=1478861729702#c2940729096183546458): It opens the mouth a bit wider for some syllables, keeping the lips moving. This may be cheating, but it looks much better!
* **Using wide-open mouth shape more often**
Previous versions used mouth shape D (the wide-open mouth) very sparingly. This release uses it more often, which makes the resulting animation more lively and interesting.
## Version 1.3.0
* **New, bidirectional animation algorithm**
Since version 1.0.0, Rhubarb Lip Sync has used a predictive animation algorithm. That means that in many situations (usually before a vowel), the mouth *anticipates* the upcoming sound. It moves *ahead of time*, resulting in more natural animation.
For version 1.3.0, this core animation algorithm has been re-written from scratch. The new algorithm still anticipates the *next* vowel, but now also considers the *previous* vowel. The resulting animation is even closer to human speech.
* **Artistic timing**
Previous versions of Rhubarb Lip Sync have tried to reproduce the timing of the recording as precisely as possible. For rapid speech, this often resulted in jittery animation that didn't look good: It tried to fit too much information into the available time. Traditional animators have known this problem since the 1930s. Instead of slavishly following the timing of the recording, they focus on important sounds and mouth shapes, showing them earlier (and thus longer) than would be realistic. On the other hand, they often skip unimportant sounds and mouth shapes altogether.
Rhubarb Lip Sync 1.3.0 adds a new step in the animation pipeline that emulates this artistic approach. The resulting animation looks much cleaner and smoother. Ironically, it also looks more in-sync than the precise animation created by earlier versions.
* **Tweaks to the animation rules and tweening**
Animation rules define which mouth shapes can be used to represent a specific sound. For this release, there have been many tweaks to the animation rules, making some sounds look much more convincing. In addition, the rules for inbetweens ("tweening") have been improved. As in traditional animation, the mouth now "pops" open without inbetweens, then closes smoothly.
* **Improved pause animations**
Pauses in speech are tricky to animate. Early version of Rhubarb Lip Sync always closed the mouth, which looks strange for very short pauses. Later versions kept the mouth open for short pauses, which can also look weird if the first mouth shape *after* the pause is identical to the mouth shape *during* the pause: It looks as if somebody just forgot to animate that part.
This version of Rhubarb Lip Sync uses three different strategies for animating pauses, depending on the duration of the pause and the mouth shapes before and after it.
* **`--extendedShapes` command-line option**
Previous versions of Rhubarb Lip Sync used a fixed set of eight or nine mouth shapes for animation. If users wanted to use fewer mouth shapes, they had to modify the output, for instance by replacing every "X" shape with an "A". This version of Rhubarb Lip Sync introduces the `--extendedShapes` command-line option that allows the user to specify which mouth shapes should be used. This is not only more convenient; knowing which mouth shapes are actually available also allows Rhubarb Lip Sync to create better animation.
* **`--quiet` mode**
A "quiet" mode has been added. In that mode, Rhubarb Lip Sync doesn't create any output except for animation data and error messages. This is helpful when using Rhubarb Lip Sync as part of an automated process.
* **Fixes to the grapheme-to-phoneme algorithm**
Rhubarb Lip Sync comes with a huge dictionary containing pronunciations for more than 100,000 English words. If the dialog text contains words not found in this dictionary, Rhubarb Lip Sync will try to guess the correct pronunciation. I've fixed several bugs in the G2P algorithm that does this. As a result, using the `--dialogFile` option now results in even better animation.
## Version 1.2.0
* **Dialog file needn't be exact**
Since version 1.0.0, Rhubarb Lip Sync can handle situations where the dialog text is specified (using the `-dialogFile` option), but the actual recording omits some words. For instance, the specified dialog text can be "That's all gobbledygook to me," but the recording only says "That's gobbledygook to me," dropping the word "all."
Until now, however, Rhubarb Lip Sync couldn't handle *changed* or *inserted* words, such as a recording saying "That's *just* gobbledygook to me." This restriction has been removed. As of version 1.2.0, the actual recording may freely deviate from the specified dialog text. Rhubarb Lip Sync will ignore the dialog file where it audibly differs from the recording, and benefit from it where it matches.
## Version 1.1.0
* **More reliable speech recognition**
The first step in automatic lip sync is speech recognition.
Rhubarb Lip Sync 1.1.0 recognizes spoken dialog more accurately, especially at the beginning of recordings.
This improves the overall quality of the resulting animation.
* **More accurate breath detection**
Rhubarb Lip Sync animates not only dialog, but also noises such as taking a breath.
For this version, the accuracy of breath detection has been improved.
You shouldn't see actors opening their mouth for no reason any more.
* **Better animation of short pauses**
During short pauses between words or sentences (up to 0.35s), the mouth is kept open.
Now, this open mouth shape is chosen based on the previous and following mouth shapes.
This gives pauses in speech a more natural, less mechanical look.
* **Builds on Linux**
In addition to Windows and OS X, Rhubarb Lip Sync can now be built on Linux systems.
I'm not offering binary distributions for Linux at this time.
To build the application yourself, you need CMake, Boost, and a C++14-compatible compiler.
## Version 1.0.0
* More realistic animation using new, predictive algorithm
* Smoother animation due to tweening
* Support for non-dialog noises (breathing, smacking, etc.)
* Substantial speed improvement through multithreading
* More reliable voice recognition
* Support for long recordings (I've tested a 30-minute file)
* Recording may deviate from specified dialog text
* Specified dialog text may contain unknown words as well as numbers, abbreviations, etc.
## Version 0.2.0
* Multiple output formats: TSV, XML, JSON
* Experimental option to supply dialog text
* Improved error handling and error messages
## Version 0.1.0
* Two-pass phone detection using [CMU PocketSphinx](http://cmusphinx.sourceforge.net/)
* Fixed set of eight mouth shapes, based on the Hanna-Barbera shapes
* Naive (but well-tuned) mapping from phones to mouth shapes

8
appInfo.cmake Normal file
View File

@ -0,0 +1,8 @@
cmake_minimum_required(VERSION 3.24)
set(appName "Rhubarb Lip Sync")
set(appVersionMajor 1)
set(appVersionMinor 13)
set(appVersionPatch 0)
set(appVersionSuffix "")
set(appVersion "${appVersionMajor}.${appVersionMinor}.${appVersionPatch}${appVersionSuffix}")

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@ -0,0 +1,11 @@
cmake_minimum_required(VERSION 3.24)
set(afterEffectsFiles
"Rhubarb Lip Sync.jsx"
"README.adoc"
)
install(
FILES ${afterEffectsFiles}
DESTINATION "extras/AdobeAfterEffects"
)

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@ -0,0 +1,29 @@
= Animation script for Adobe After Effects
The script in this directory generates After Effects compositions with mouth animation.
== How to install
=== 1. Download and extract
Download the archive file containing Rhubarb Lip Sync, then extract in a directory on your computer.
=== 2. Make Rhubarb available to After Effects
On *Windows*, add the Rhubarb directory (the directory containing `rhubarb.exe`) to your `PATH` environment variable.
On *OS X*, create a symbolic link to the executable (`rhubarb`) in `/usr/local/bin/`. You can do that by executing `ln -s /rhubarb-directory/rhubarb /usr/local/bin/` (make sure to replace `rhubarb-directory` with the actual directory).
=== 3. Install After Effects script
Copy (or symlink) the script file `Rhubarb Lip Sync.jsx` into your After Effects scripts directory.
On *Windows*, that directory is usually `C:\Program Files\Adobe\Adobe After Effects <version>\Support Files\Scripts`.
On *OS X*, that directory is usually `Applications/Adobe After Effects <version>/Scripts`.
=== 4. (Re-)start After Effects
== How to use
In After Effects, select _File > Scripts > Rhubarb Lip Sync.jsx_. That will open a dialog window where you can specify the audio file with the dialog recording and a number of other options. To get information about any input field, just hover above it with your mouse and youll see a tooltip.

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@ -1,30 +0,0 @@
# Animation script for Adobe After Effects
The script in this directory generates After Effects compositions with mouth animation.
## How to install
### 1. Download and extract
Download the archive file containing Rhubarb Lip-Sync, then extract in a directory on your computer.
### 2. Make Rhubarb available to After Effects
On **Windows**, add the Rhubarb directory (the directory containing `rhubarb.exe`) to your `PATH` environment variable.
On **OS X**, create a symbolic link to the executable (`rhubarb`) in `/usr/local/bin/`. You can do that by executing `ln -s /rhubarb-directory/rhubarb /usr/local/bin/` (make sure to replace `rhubarb-directory` with the actual directory).
### 3. Install After Effects script
Copy (or symlink) the script file `Rhubarb Lip Sync.jsx` into your After Effects scripts directory.
On **Windows**, that directory is usually `C:\Program Files\Adobe\Adobe After Effects <version>\Support Files\Scripts`.
On **OS X**, that directory is usually `Applications/Adobe After Effects <version>/Scripts`.
### 4. (Re-)start After Effects
## How to use
In After Effects, select *File > Scripts > Rhubarb Lip Sync.jsx*. That will open a dialog window where you can specify the WAVE file with the dialog recording and a number of other options. To get information about any input field, just hover above it with your mouse and you'll see a tooltip.

View File

@ -266,13 +266,10 @@ function selectByTextOrFirst(itemControl, text) {
}
}
function getWaveFileProjectItems() {
function getAudioFileProjectItems() {
var result = toArrayBase1(app.project.items).filter(function(item) {
var isAudioFootage = item instanceof FootageItem && item.hasAudio && !item.hasVideo;
if (!isAudioFootage) return false;
var isWaveFile = item.file && item.file.exists && item.file.name.match(/\.wav$/i);
return isWaveFile;
return isAudioFootage;
});
return result;
}
@ -322,10 +319,16 @@ function createDialogWindow() {
}),
value: DropDownList({
helpTip: 'An audio file containing recorded dialog.\n'
+ 'This field shows all audio files of type .wav that exist in '
+ 'This field shows all audio files that exist in '
+ 'your After Effects project.'
})
}),
recognizer: Group({
label: StaticText({ text: 'Recognizer:' }),
value: DropDownList({
helpTip: 'The dialog recognizer.'
})
}),
dialogText: Group({
label: StaticText({ text: 'Dialog text (optional):' }),
value: EditText({
@ -387,6 +390,7 @@ function createDialogWindow() {
var controls = {
audioFile: window.settings.audioFile.value,
dialogText: window.settings.dialogText.value,
recognizer: window.settings.recognizer.value,
mouthComp: window.settings.mouthComp.value,
targetFolder: window.settings.targetFolder.value,
frameRate: window.settings.frameRate.value,
@ -400,11 +404,21 @@ function createDialogWindow() {
});
// Add audio file options
getWaveFileProjectItems().forEach(function(projectItem) {
getAudioFileProjectItems().forEach(function(projectItem) {
var listItem = controls.audioFile.add('item', getItemPath(projectItem));
listItem.projectItem = projectItem;
});
// Add recognizer options
const recognizerOptions = [
{ text: 'PocketSphinx (use for English recordings)', value: 'pocketSphinx' },
{ text: 'Phonetic (use for non-English recordings)', value: 'phonetic' }
];
recognizerOptions.forEach(function(option) {
var listItem = controls.recognizer.add('item', option.text);
listItem.value = option.value;
});
// Add mouth composition options
var comps = toArrayBase1(app.project.items).filter(function (item) {
return item instanceof CompItem;
@ -428,6 +442,7 @@ function createDialogWindow() {
var settings = readSettingsFile();
selectByTextOrFirst(controls.audioFile, settings.audioFile);
controls.dialogText.text = settings.dialogText || '';
selectByTextOrFirst(controls.recognizer, settings.recognizer);
selectByTextOrFirst(controls.mouthComp, settings.mouthComp);
extendedMouthShapeNames.forEach(function(shapeName) {
controls['mouthShape' + shapeName].value =
@ -487,6 +502,7 @@ function createDialogWindow() {
// Store settings
var settings = {
audioFile: (controls.audioFile.selection || {}).text,
recognizer: (controls.recognizer.selection || {}).text,
dialogText: controls.dialogText.text,
mouthComp: (controls.mouthComp.selection || {}).text,
extendedMouthShapes: {},
@ -546,7 +562,7 @@ function createDialogWindow() {
// Check for correct Rhubarb version
var version = exec(rhubarbPath + ' --version') || '';
var match = version.match(/Rhubarb Lip Sync version ((\d+)\.(\d+).(\d+))/);
var match = version.match(/Rhubarb Lip Sync version ((\d+)\.(\d+).(\d+)(-[0-9A-Za-z-.]+)?)/);
if (!match) {
var instructions = osIsWindows
? 'Make sure your PATH environment variable contains the ' + appName + ' '
@ -558,13 +574,16 @@ function createDialogWindow() {
var versionString = match[1];
var major = Number(match[2]);
var minor = Number(match[3]);
if (major != 1 || minor < 6) {
return 'This script requires ' + appName + ' 1.6.0 or a later 1.x version. '
var requiredMajor = 1;
var minRequiredMinor = 9;
if (major != requiredMajor || minor < minRequiredMinor) {
return 'This script requires ' + appName + ' ' + requiredMajor + '.' + minRequiredMinor
+ '.0 or a later ' + requiredMajor + '.x version. '
+ 'Your installed version is ' + versionString + ', which is not compatible.';
}
}
function generateMouthCues(audioFileFootage, dialogText, mouthComp, extendedMouthShapeNames,
function generateMouthCues(audioFileFootage, recognizer, dialogText, mouthComp, extendedMouthShapeNames,
targetProjectFolder, frameRate)
{
var basePath = Folder.temp.fsName + '/' + createGuid();
@ -578,6 +597,7 @@ function createDialogWindow() {
// Create command line
var commandLine = rhubarbPath
+ ' --dialogFile ' + cliEscape(dialogFile.fsName)
+ ' --recognizer ' + recognizer
+ ' --exportFormat json'
+ ' --extendedShapes ' + cliEscape(extendedMouthShapeNames.join(''))
+ ' --logFile ' + cliEscape(logFile.fsName)
@ -602,7 +622,6 @@ function createDialogWindow() {
var result;
try {
result = JSON.parse(readTextFile(jsonFile));
$.writeln(readTextFile(jsonFile));
} catch (e) {
throw new Error('No animation result. Animation was probably canceled.');
}
@ -618,8 +637,8 @@ function createDialogWindow() {
frameRate)
{
// Find an unconflicting comp name
// ... strip extension .wav, if present
var baseName = audioFileFootage.name.match(/^(.*?)(\.wav)?$/i)[1];
// ... strip extension, if present
var baseName = audioFileFootage.name.match(/^(.*?)(\..*)?$/i)[1];
var compName = baseName;
// ... add numeric suffix, if needed
var existingItems = toArrayBase1(targetProjectFolder.items);
@ -663,11 +682,11 @@ function createDialogWindow() {
}
}
function animate(audioFileFootage, dialogText, mouthComp, extendedMouthShapeNames,
function animate(audioFileFootage, recognizer, dialogText, mouthComp, extendedMouthShapeNames,
targetProjectFolder, frameRate)
{
try {
var mouthCues = generateMouthCues(audioFileFootage, dialogText, mouthComp,
var mouthCues = generateMouthCues(audioFileFootage, recognizer, dialogText, mouthComp,
extendedMouthShapeNames, targetProjectFolder, frameRate);
app.beginUndoGroup(appName + ': Animation');
@ -683,6 +702,7 @@ function createDialogWindow() {
// Handle changes
update();
controls.audioFile.onChange = update;
controls.recognizer.onChange = update;
controls.dialogText.onChanging = update;
controls.mouthComp.onChange = update;
extendedMouthShapeNames.forEach(function(shapeName) {
@ -703,6 +723,7 @@ function createDialogWindow() {
window.close();
animate(
controls.audioFile.selection.projectItem,
controls.recognizer.selection.value,
controls.dialogText.text || '',
controls.mouthComp.selection.projectItem,
extendedMouthShapeNames.filter(function(shapeName) {

View File

@ -0,0 +1,8 @@
# Directory is generated when importing Gradle project
/.idea/
*.iml
/.gradle/
/build/
/out/
/tmp/

View File

@ -0,0 +1,18 @@
cmake_minimum_required(VERSION 3.24)
add_custom_target(
rhubarbForSpine ALL
"./gradlew" "build"
WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}"
COMMENT "Building Rhubarb for Spine through Gradle."
)
install(
DIRECTORY "build/libs/"
DESTINATION "extras/EsotericSoftwareSpine"
)
install(
FILES README.adoc
DESTINATION "extras/EsotericSoftwareSpine"
)

View File

@ -0,0 +1,51 @@
= Rhubarb Lip Sync for Spine
Rhubarb Lip Sync for Spine is a graphical tool that allows you to import a Spine project, perform automatic lip sync, then re-import the result into Spine.
image:../../img/spine.png[image]
== Installation
https://github.com/DanielSWolf/rhubarb-lip-sync/releases[Download Rhubarb Lip Sync] for your platform, then extract the archive file in a directory on your computer. Youll find Rhubarb Lip Sync for Spine in the directory `extras/EsotericSoftwareSpine`.
To create lip sync animation, youll need Spine 3.7 or better.
== Preparing your Spine project
You can add lip-synced dialog to any Spine skeleton. First, make sure it has a dedicated slot for its mouth. Im naming the slot `mouth`, but you can choose any name you like.
Next, add image attachments to the mouth slot, one attachment per mouth shape. For details about the expected mouth shapes, https://github.com/DanielSWolf/rhubarb-lip-sync#user-content-mouth-shapes[refer to the Rhubarb Lip Sync documentation]. Youll need at least the six basic mouth shapes A-F. If you add any of the extended mouth shapes, Rhubarb will automatically use them to create better-looking animation. Im naming the attachments `mouth_a`, `mouth_b`, `mouth_c`, etc. You can choose any naming scheme you like and Rhubarb will detect it, as long as its consistent (including upper and lower case). For instance, `A-Lips`, `B-Lips`, `C-Lips`, … is fine; `mouth a`, `mouth B`, `Mouth-C`, … isnt.
Finally, you need to add some audio events, that is, events with associated audio path. These audio events will be the basis for animation.
_Optionally_, you can enter the dialog text into each events string property. If you do, this will help Rhubarb to create more reliable animation. But dont worry: If you dont enter the dialog text or if you already use the string property for something else, the results will normally still be good. For more information, see the https://github.com/DanielSWolf/rhubarb-lip-sync#user-content-options[documentation on the `--dialogFile` option].
== Exporting a JSON file
Export the skeleton(s) by selecting _Spine_ | _Export…_.
Choose JSON format. Make sure the output folder is the same folder that contains your `.spine` file, or Rhubarb wont be able to locate your audio files. Also, make sure to check the _Nonessential data_ checkbox. Despite the name, Rhubarb needs this information. Finally, click _Export_. This will create a file with the same name as your skeleton and the extension `.json`.
== Performing lip sync
Open Rhubarb Lip Sync for Spine by double-clicking `rhubarb-for-spine.jar` in the Windows Explorer (Windows) or Finder (OS X). Specify the input settings as follows:
* *Spine JSON file:* This is the file you just exported. The most convenient way to fill this field is to drag-and-drop the JSON file anywhere onto the application window. Alternatively, you can use the `…' button or manually enter the file path.
* *Mouth slot:* This tells Rhubarb which of your Spine slots represents the mouth. The dropdown shows all the slots on your skeleton. If your mouth slot contains the word `mouth', Rhubarb will automatically select it for you. Otherwise, select it manually.
* *Mouth naming:* Rhubarb will automatically detect the naming scheme you used for your mouth attachments and display it here. This is for your information only.
* *Mouth shapes:* This group of checkboxes tells you which mouth shapes were found. At least the basic mouth shapes A-F need to be present. This, too, is informational only.
* *Animation naming:* When animating, Rhubarb will create new Spine animations based on your existing audio events. The two text fields allow you to fine-tune the animation naming.
At the bottom of the window, there is a grid with one row per audio event. To animate any audio event, click the corresponding _Animate_ button. Animation jobs are queued, so the next animation job starts once the previous one has finished.
Each time an animation job finishes, the JSON file is updated with the new animation. When you are done animating, you can close Rhubarb Lip Sync for Spine.
== Importing the animated results
Rhubarb Lip Sync for Spine has only changed the exported `.json` file, not your original `.spine` project file. To do that, switch back to Spine.
Delete your skeleton by selecting it in the hierarchy tree and clicking the _Delete_ button. If you dont, Spine will complain in the next step that a skeleton with this name already exists.
Select _Spine_ | _Import Data…_. Make sure the JSON file path is correct. Also make sure the checkbox _New project_ is *not checked*, or else Spine will start confusing paths. Click OK to re-import the skeleton from the JSON file.
If everything went well, you will now have a number of new, lip-synced animations on your skeleton!

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@ -0,0 +1,57 @@
import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
import java.io.File
plugins {
kotlin("jvm") version "1.6.0"
id("org.openjfx.javafxplugin") version "0.0.10"
}
fun getVersion(): String {
// Dynamically read version from CMake file
val file = File(rootDir.parentFile.parentFile, "appInfo.cmake")
val text = file.readText()
val major = Regex("""appVersionMajor\s+(\d+)""").find(text)!!.groupValues[1]
val minor = Regex("""appVersionMinor\s+(\d+)""").find(text)!!.groupValues[1]
val patch = Regex("""appVersionPatch\s+(\d+)""").find(text)!!.groupValues[1]
val suffix = Regex("""appVersionSuffix\s+"(.*?)"""").find(text)!!.groupValues[1]
return "$major.$minor.$patch$suffix"
}
group = "com.rhubarb_lip_sync"
version = getVersion()
repositories {
mavenCentral()
jcenter()
maven("https://oss.sonatype.org/content/repositories/snapshots")
}
dependencies {
implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.6.0")
implementation("com.beust:klaxon:5.5")
implementation("org.apache.commons:commons-lang3:3.12.0")
implementation("no.tornado:tornadofx:2.0.0-SNAPSHOT")
testImplementation("org.junit.jupiter:junit-jupiter:5.8.1")
testImplementation("org.assertj:assertj-core:3.21.0")
}
javafx {
version = "15.0.1"
modules("javafx.controls")
}
tasks.withType<KotlinCompile> {
kotlinOptions.jvmTarget = "1.8"
}
tasks.test {
useJUnitPlatform()
}
tasks.withType<Jar> {
manifest {
attributes("Main-Class" to "com.rhubarb_lip_sync.rhubarb_for_spine.MainKt")
}
from(configurations.compileClasspath.get().map { if (it.isDirectory) it else zipTree(it) })
}

Binary file not shown.

View File

@ -0,0 +1,5 @@
distributionBase=GRADLE_USER_HOME
distributionPath=wrapper/dists
distributionUrl=https\://services.gradle.org/distributions/gradle-6.9-all.zip
zipStoreBase=GRADLE_USER_HOME
zipStorePath=wrapper/dists

172
extras/EsotericSoftwareSpine/gradlew vendored Executable file
View File

@ -0,0 +1,172 @@
#!/usr/bin/env sh
##############################################################################
##
## Gradle start up script for UN*X
##
##############################################################################
# Attempt to set APP_HOME
# Resolve links: $0 may be a link
PRG="$0"
# Need this for relative symlinks.
while [ -h "$PRG" ] ; do
ls=`ls -ld "$PRG"`
link=`expr "$ls" : '.*-> \(.*\)$'`
if expr "$link" : '/.*' > /dev/null; then
PRG="$link"
else
PRG=`dirname "$PRG"`"/$link"
fi
done
SAVED="`pwd`"
cd "`dirname \"$PRG\"`/" >/dev/null
APP_HOME="`pwd -P`"
cd "$SAVED" >/dev/null
APP_NAME="Gradle"
APP_BASE_NAME=`basename "$0"`
# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
DEFAULT_JVM_OPTS=""
# Use the maximum available, or set MAX_FD != -1 to use that value.
MAX_FD="maximum"
warn () {
echo "$*"
}
die () {
echo
echo "$*"
echo
exit 1
}
# OS specific support (must be 'true' or 'false').
cygwin=false
msys=false
darwin=false
nonstop=false
case "`uname`" in
CYGWIN* )
cygwin=true
;;
Darwin* )
darwin=true
;;
MINGW* )
msys=true
;;
NONSTOP* )
nonstop=true
;;
esac
CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
# Determine the Java command to use to start the JVM.
if [ -n "$JAVA_HOME" ] ; then
if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
# IBM's JDK on AIX uses strange locations for the executables
JAVACMD="$JAVA_HOME/jre/sh/java"
else
JAVACMD="$JAVA_HOME/bin/java"
fi
if [ ! -x "$JAVACMD" ] ; then
die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
Please set the JAVA_HOME variable in your environment to match the
location of your Java installation."
fi
else
JAVACMD="java"
which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
Please set the JAVA_HOME variable in your environment to match the
location of your Java installation."
fi
# Increase the maximum file descriptors if we can.
if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
MAX_FD_LIMIT=`ulimit -H -n`
if [ $? -eq 0 ] ; then
if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
MAX_FD="$MAX_FD_LIMIT"
fi
ulimit -n $MAX_FD
if [ $? -ne 0 ] ; then
warn "Could not set maximum file descriptor limit: $MAX_FD"
fi
else
warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
fi
fi
# For Darwin, add options to specify how the application appears in the dock
if $darwin; then
GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
fi
# For Cygwin, switch paths to Windows format before running java
if $cygwin ; then
APP_HOME=`cygpath --path --mixed "$APP_HOME"`
CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
JAVACMD=`cygpath --unix "$JAVACMD"`
# We build the pattern for arguments to be converted via cygpath
ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
SEP=""
for dir in $ROOTDIRSRAW ; do
ROOTDIRS="$ROOTDIRS$SEP$dir"
SEP="|"
done
OURCYGPATTERN="(^($ROOTDIRS))"
# Add a user-defined pattern to the cygpath arguments
if [ "$GRADLE_CYGPATTERN" != "" ] ; then
OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
fi
# Now convert the arguments - kludge to limit ourselves to /bin/sh
i=0
for arg in "$@" ; do
CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option
if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition
eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
else
eval `echo args$i`="\"$arg\""
fi
i=$((i+1))
done
case $i in
(0) set -- ;;
(1) set -- "$args0" ;;
(2) set -- "$args0" "$args1" ;;
(3) set -- "$args0" "$args1" "$args2" ;;
(4) set -- "$args0" "$args1" "$args2" "$args3" ;;
(5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
(6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
(7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
(8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
(9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
esac
fi
# Escape application args
save () {
for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
echo " "
}
APP_ARGS=$(save "$@")
# Collect all arguments for the java command, following the shell quoting and substitution rules
eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
# by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong
if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then
cd "$(dirname "$0")"
fi
exec "$JAVACMD" "$@"

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@if "%DEBUG%" == "" @echo off
@rem ##########################################################################
@rem
@rem Gradle startup script for Windows
@rem
@rem ##########################################################################
@rem Set local scope for the variables with windows NT shell
if "%OS%"=="Windows_NT" setlocal
set DIRNAME=%~dp0
if "%DIRNAME%" == "" set DIRNAME=.
set APP_BASE_NAME=%~n0
set APP_HOME=%DIRNAME%
@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
set DEFAULT_JVM_OPTS=
@rem Find java.exe
if defined JAVA_HOME goto findJavaFromJavaHome
set JAVA_EXE=java.exe
%JAVA_EXE% -version >NUL 2>&1
if "%ERRORLEVEL%" == "0" goto init
echo.
echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
echo.
echo Please set the JAVA_HOME variable in your environment to match the
echo location of your Java installation.
goto fail
:findJavaFromJavaHome
set JAVA_HOME=%JAVA_HOME:"=%
set JAVA_EXE=%JAVA_HOME%/bin/java.exe
if exist "%JAVA_EXE%" goto init
echo.
echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
echo.
echo Please set the JAVA_HOME variable in your environment to match the
echo location of your Java installation.
goto fail
:init
@rem Get command-line arguments, handling Windows variants
if not "%OS%" == "Windows_NT" goto win9xME_args
:win9xME_args
@rem Slurp the command line arguments.
set CMD_LINE_ARGS=
set _SKIP=2
:win9xME_args_slurp
if "x%~1" == "x" goto execute
set CMD_LINE_ARGS=%*
:execute
@rem Setup the command line
set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
@rem Execute Gradle
"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
:end
@rem End local scope for the variables with windows NT shell
if "%ERRORLEVEL%"=="0" goto mainEnd
:fail
rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
rem the _cmd.exe /c_ return code!
if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
exit /b 1
:mainEnd
if "%OS%"=="Windows_NT" endlocal
:omega

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rootProject.name = "rhubarb-for-spine"

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package com.rhubarb_lip_sync.rhubarb_for_spine
import javafx.beans.binding.BooleanBinding
import javafx.beans.property.SimpleBooleanProperty
import javafx.beans.property.SimpleListProperty
import javafx.beans.property.SimpleObjectProperty
import javafx.beans.property.SimpleStringProperty
import javafx.collections.ObservableList
import tornadofx.asObservable
import java.nio.file.Path
import tornadofx.getValue
import tornadofx.observable
import tornadofx.setValue
import java.util.concurrent.ExecutorService
class AnimationFileModel(val parentModel: MainModel, animationFilePath: Path, private val executor: ExecutorService) {
val spineJson = SpineJson(animationFilePath)
val slotsProperty = SimpleObjectProperty<ObservableList<String>>()
private var slots: ObservableList<String> by slotsProperty
val mouthSlotProperty: SimpleStringProperty = SimpleStringProperty().alsoListen {
val mouthSlot = this.mouthSlot
val mouthNaming = if (mouthSlot != null)
MouthNaming.guess(spineJson.getSlotAttachmentNames(mouthSlot))
else null
this.mouthNaming = mouthNaming
mouthShapes = if (mouthSlot != null && mouthNaming != null) {
val mouthNames = spineJson.getSlotAttachmentNames(mouthSlot)
MouthShape.values().filter { mouthNames.contains(mouthNaming.getName(it)) }
} else listOf()
mouthSlotError = if (mouthSlot != null)
null
else
"No slot with mouth drawings specified."
}
private var mouthSlot: String? by mouthSlotProperty
val mouthSlotErrorProperty = SimpleStringProperty()
private var mouthSlotError: String? by mouthSlotErrorProperty
val mouthNamingProperty = SimpleObjectProperty<MouthNaming>()
private var mouthNaming: MouthNaming? by mouthNamingProperty
val mouthShapesProperty = SimpleObjectProperty<List<MouthShape>>().alsoListen {
mouthShapesError = getMouthShapesErrorString()
}
var mouthShapes: List<MouthShape> by mouthShapesProperty
private set
val mouthShapesErrorProperty = SimpleStringProperty()
private var mouthShapesError: String? by mouthShapesErrorProperty
val audioFileModelsProperty = SimpleListProperty<AudioFileModel>(
spineJson.audioEvents
.map { event ->
var audioFileModel: AudioFileModel? = null
val reportResult: (List<MouthCue>) -> Unit =
{ result -> saveAnimation(audioFileModel!!.animationName, event.name, result) }
audioFileModel = AudioFileModel(event, this, executor, reportResult)
return@map audioFileModel
}
.asObservable()
)
val audioFileModels: ObservableList<AudioFileModel> by audioFileModelsProperty
val busyProperty = SimpleBooleanProperty().apply {
bind(object : BooleanBinding() {
init {
for (audioFileModel in audioFileModels) {
super.bind(audioFileModel.busyProperty)
}
}
override fun computeValue(): Boolean {
return audioFileModels.any { it.busy }
}
})
}
val busy by busyProperty
val validProperty = SimpleBooleanProperty().apply {
val errorProperties = arrayOf(mouthSlotErrorProperty, mouthShapesErrorProperty)
bind(object : BooleanBinding() {
init {
super.bind(*errorProperties)
}
override fun computeValue(): Boolean {
return errorProperties.all { it.value == null }
}
})
}
private fun saveAnimation(animationName: String, audioEventName: String, mouthCues: List<MouthCue>) {
spineJson.createOrUpdateAnimation(mouthCues, audioEventName, animationName, mouthSlot!!, mouthNaming!!)
spineJson.save()
}
init {
slots = spineJson.slots.asObservable()
mouthSlot = spineJson.guessMouthSlot()
}
private fun getMouthShapesErrorString(): String? {
val missingBasicShapes = MouthShape.basicShapes
.filter{ !mouthShapes.contains(it) }
if (missingBasicShapes.isEmpty()) return null
val result = StringBuilder()
val missingShapesString = missingBasicShapes.joinToString()
result.appendln(
if (missingBasicShapes.count() > 1)
"Mouth shapes $missingShapesString are missing."
else
"Mouth shape $missingShapesString is missing."
)
val first = MouthShape.basicShapes.first()
val last = MouthShape.basicShapes.last()
result.append("At least the basic mouth shapes $first-$last need corresponding image attachments.")
return result.toString()
}
}

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package com.rhubarb_lip_sync.rhubarb_for_spine
import javafx.application.Platform
import javafx.beans.binding.BooleanBinding
import javafx.beans.binding.ObjectBinding
import javafx.beans.binding.StringBinding
import javafx.beans.property.SimpleBooleanProperty
import javafx.beans.property.SimpleObjectProperty
import javafx.beans.property.SimpleStringProperty
import javafx.scene.control.Alert
import javafx.scene.control.ButtonType
import tornadofx.getValue
import tornadofx.setValue
import java.nio.file.Path
import java.util.concurrent.ExecutorService
import java.util.concurrent.Future
class AudioFileModel(
audioEvent: SpineJson.AudioEvent,
private val parentModel: AnimationFileModel,
private val executor: ExecutorService,
private val reportResult: (List<MouthCue>) -> Unit
) {
private val spineJson = parentModel.spineJson
private val audioFilePath: Path = spineJson.audioDirectoryPath.resolve(audioEvent.relativeAudioFilePath)
val eventNameProperty = SimpleStringProperty(audioEvent.name)
val eventName: String by eventNameProperty
val displayFilePathProperty = SimpleStringProperty(audioEvent.relativeAudioFilePath)
val animationNameProperty = SimpleStringProperty().apply {
val mainModel = parentModel.parentModel
bind(object : ObjectBinding<String>() {
init {
super.bind(
mainModel.animationPrefixProperty,
eventNameProperty,
mainModel.animationSuffixProperty
)
}
override fun computeValue(): String {
return mainModel.animationPrefix + eventName + mainModel.animationSuffix
}
})
}
val animationName: String by animationNameProperty
val dialogProperty = SimpleStringProperty(audioEvent.dialog)
private val dialog: String? by dialogProperty
val animationProgressProperty = SimpleObjectProperty<Double?>(null)
var animationProgress: Double? by animationProgressProperty
private set
private val animatedProperty = SimpleBooleanProperty().apply {
bind(object : ObjectBinding<Boolean>() {
init {
super.bind(animationNameProperty, parentModel.spineJson.animationNames)
}
override fun computeValue(): Boolean {
return parentModel.spineJson.animationNames.contains(animationName)
}
})
}
private var animated by animatedProperty
private val futureProperty = SimpleObjectProperty<Future<*>?>()
private var future by futureProperty
val audioFileStateProperty = SimpleObjectProperty<AudioFileState>().apply {
bind(object : ObjectBinding<AudioFileState>() {
init {
super.bind(animatedProperty, futureProperty, animationProgressProperty)
}
override fun computeValue(): AudioFileState {
return if (future != null) {
if (animationProgress != null)
if (future!!.isCancelled)
AudioFileState(AudioFileStatus.Canceling)
else
AudioFileState(AudioFileStatus.Animating, animationProgress)
else
AudioFileState(AudioFileStatus.Pending)
} else {
if (animated)
AudioFileState(AudioFileStatus.Done)
else
AudioFileState(AudioFileStatus.NotAnimated)
}
}
})
}
val busyProperty = SimpleBooleanProperty().apply {
bind(object : BooleanBinding() {
init {
super.bind(futureProperty)
}
override fun computeValue(): Boolean {
return future != null
}
})
}
val busy by busyProperty
val actionLabelProperty = SimpleStringProperty().apply {
bind(object : StringBinding() {
init {
super.bind(futureProperty)
}
override fun computeValue(): String {
return if (future != null)
"Cancel"
else
"Animate"
}
})
}
fun performAction() {
if (future == null) {
if (animated) {
Alert(Alert.AlertType.CONFIRMATION).apply {
headerText = "Animation '$animationName' already exists."
contentText = "Do you want to replace the existing animation?"
val result = showAndWait()
if (result.get() != ButtonType.OK) {
return
}
}
}
startAnimation()
} else {
cancelAnimation()
}
}
private fun startAnimation() {
val wrapperTask = Runnable {
val recognizer = parentModel.parentModel.recognizer.value
val extendedMouthShapes = parentModel.mouthShapes.filter { it.isExtended }.toSet()
val reportProgress: (Double?) -> Unit = {
progress -> runAndWait { this@AudioFileModel.animationProgress = progress }
}
val rhubarbTask = RhubarbTask(audioFilePath, recognizer, dialog, extendedMouthShapes, reportProgress)
try {
try {
val result = rhubarbTask.call()
runAndWait {
reportResult(result)
}
} finally {
runAndWait {
animationProgress = null
future = null
}
}
} catch (e: InterruptedException) {
} catch (e: Exception) {
e.printStackTrace(System.err)
Platform.runLater {
Alert(Alert.AlertType.ERROR).apply {
headerText = "Error performing lip sync for event '$eventName'."
contentText = if (e is EndUserException)
e.message
else
("An internal error occurred.\n"
+ "Please report an issue, including the following information.\n"
+ getStackTrace(e))
show()
}
}
}
}
future = executor.submit(wrapperTask)
}
private fun cancelAnimation() {
future?.cancel(true)
}
}
enum class AudioFileStatus {
NotAnimated,
Pending,
Animating,
Canceling,
Done
}
data class AudioFileState(val status: AudioFileStatus, val progress: Double? = null)

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package com.rhubarb_lip_sync.rhubarb_for_spine
// An exception with a human-readable message that can be shown to the end user
class EndUserException(message: String): Exception(message)

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package com.rhubarb_lip_sync.rhubarb_for_spine
import javafx.beans.property.SimpleStringProperty
import javafx.beans.property.StringProperty
import javafx.beans.value.ObservableValue
import javafx.scene.Group
import javafx.scene.Node
import javafx.scene.Parent
import javafx.scene.control.Tooltip
import javafx.scene.paint.Color
import tornadofx.addChildIfPossible
import tornadofx.circle
import tornadofx.rectangle
import tornadofx.removeFromParent
fun renderErrorIndicator(): Node {
return Group().apply {
isManaged = false
circle {
radius = 7.0
fill = Color.ORANGERED
}
rectangle {
x = -1.0
y = -5.0
width = 2.0
height = 7.0
fill = Color.WHITE
}
rectangle {
x = -1.0
y = 3.0
width = 2.0
height = 2.0
fill = Color.WHITE
}
}
}
fun Parent.errorProperty() : StringProperty {
return properties.getOrPut("rhubarb.errorProperty", {
val errorIndicator: Node = renderErrorIndicator()
val tooltip = Tooltip()
val property = SimpleStringProperty()
fun updateTooltipVisibility() {
if (tooltip.text.isNotEmpty() && isFocused) {
val bounds = localToScreen(boundsInLocal)
tooltip.show(scene.window, bounds.minX + 5, bounds.maxY + 2)
} else {
tooltip.hide()
}
}
focusedProperty().addListener({
_: ObservableValue<out Boolean>, _: Boolean, _: Boolean ->
updateTooltipVisibility()
})
property.addListener({
_: ObservableValue<out String?>, _: String?, newValue: String? ->
if (newValue != null) {
this.addChildIfPossible(errorIndicator)
tooltip.text = newValue
Tooltip.install(this, tooltip)
updateTooltipVisibility()
} else {
errorIndicator.removeFromParent()
tooltip.text = ""
tooltip.hide()
Tooltip.uninstall(this, tooltip)
updateTooltipVisibility()
}
})
return@getOrPut property
}) as StringProperty
}

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package com.rhubarb_lip_sync.rhubarb_for_spine
import javafx.scene.image.Image
import javafx.stage.Stage
import tornadofx.App
import tornadofx.addStageIcon
import java.lang.reflect.Method
import javax.swing.ImageIcon
class MainApp : App(MainView::class) {
override fun start(stage: Stage) {
super.start(stage)
setIcon()
}
private fun setIcon() {
// Set icon for windows
for (iconSize in listOf(16, 20, 24, 32, 48, 64, 256)) {
addStageIcon(Image(this.javaClass.getResourceAsStream("/icon-$iconSize.png")))
}
// OS X requires the dock icon to be changed separately.
// Not all JDKs contain the class com.apple.eawt.Application, so we have to use reflection.
val classLoader = this.javaClass.classLoader
try {
val iconURL = this.javaClass.getResource("/icon-256.png")
val image: java.awt.Image = ImageIcon(iconURL).image
// The following is reflection code for the line
// Application.getApplication().setDockIconImage(image)
val applicationClass: Class<*> = classLoader.loadClass("com.apple.eawt.Application")
val getApplicationMethod: Method = applicationClass.getMethod("getApplication")
val application: Any = getApplicationMethod.invoke(null)
val setDockIconImageMethod: Method =
applicationClass.getMethod("setDockIconImage", java.awt.Image::class.java)
setDockIconImageMethod.invoke(application, image);
} catch (e: Exception) {
// Works only on OS X
}
}
}

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package com.rhubarb_lip_sync.rhubarb_for_spine
import javafx.beans.property.SimpleObjectProperty
import javafx.beans.property.SimpleStringProperty
import javafx.collections.FXCollections
import javafx.collections.ObservableList
import tornadofx.FX
import tornadofx.getValue
import tornadofx.setValue
import java.nio.file.Files
import java.nio.file.InvalidPathException
import java.nio.file.Paths
import java.util.concurrent.ExecutorService
class MainModel(private val executor: ExecutorService) {
val filePathStringProperty = SimpleStringProperty(getDefaultPathString()).alsoListen { value ->
filePathError = getExceptionMessage {
animationFileModel = null
if (value.isNullOrBlank()) {
throw EndUserException("No input file specified.")
}
val path = try {
val trimmed = value.removeSurrounding("\"")
Paths.get(trimmed)
} catch (e: InvalidPathException) {
throw EndUserException("Not a valid file path.")
}
if (!Files.exists(path)) {
throw EndUserException("File does not exist.")
}
animationFileModel = AnimationFileModel(this, path, executor)
}
}
val filePathErrorProperty = SimpleStringProperty()
private var filePathError: String? by filePathErrorProperty
val animationFileModelProperty = SimpleObjectProperty<AnimationFileModel?>()
var animationFileModel by animationFileModelProperty
private set
val recognizersProperty = SimpleObjectProperty<ObservableList<Recognizer>>(FXCollections.observableArrayList(
Recognizer("pocketSphinx", "PocketSphinx (use for English recordings)"),
Recognizer("phonetic", "Phonetic (use for non-English recordings)")
))
private var recognizers: ObservableList<Recognizer> by recognizersProperty
val recognizerProperty = SimpleObjectProperty<Recognizer>(recognizers[0])
var recognizer: Recognizer by recognizerProperty
val animationPrefixProperty = SimpleStringProperty("say_")
var animationPrefix: String by animationPrefixProperty
val animationSuffixProperty = SimpleStringProperty("")
var animationSuffix: String by animationSuffixProperty
private fun getDefaultPathString() = FX.application.parameters.raw.firstOrNull()
}
class Recognizer(val value: String, val description: String)

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package com.rhubarb_lip_sync.rhubarb_for_spine
import javafx.beans.property.Property
import javafx.beans.property.SimpleBooleanProperty
import javafx.beans.property.SimpleObjectProperty
import javafx.beans.property.SimpleStringProperty
import javafx.event.ActionEvent
import javafx.event.EventHandler
import javafx.event.EventTarget
import javafx.geometry.Pos
import javafx.scene.control.*
import javafx.scene.input.DragEvent
import javafx.scene.input.TransferMode
import javafx.scene.layout.*
import javafx.scene.paint.Color
import javafx.scene.text.Font
import javafx.scene.text.FontWeight
import javafx.scene.text.Text
import javafx.stage.FileChooser
import javafx.util.StringConverter
import tornadofx.*
import java.io.File
import java.util.concurrent.Executors
class MainView : View() {
private val executor = Executors.newSingleThreadExecutor()
private val mainModel = MainModel(executor)
init {
title = "Rhubarb Lip Sync for Spine"
}
override val root = form {
var filePathTextField: TextField? = null
var filePathButton: Button? = null
val fileModelProperty = mainModel.animationFileModelProperty
minWidth = 800.0
prefWidth = 1000.0
fieldset("Settings") {
disableProperty().bind(fileModelProperty.select { it!!.busyProperty })
field("Spine JSON file") {
filePathTextField = textfield {
textProperty().bindBidirectional(mainModel.filePathStringProperty)
errorProperty().bind(mainModel.filePathErrorProperty)
}
filePathButton = button("...")
}
field("Mouth slot") {
combobox<String> {
itemsProperty().bind(fileModelProperty.select { it!!.slotsProperty })
valueProperty().bindBidirectional(fileModelProperty.select { it!!.mouthSlotProperty })
errorProperty().bind(fileModelProperty.select { it!!.mouthSlotErrorProperty })
}
}
field("Mouth naming") {
label {
textProperty().bind(
fileModelProperty
.select { it!!.mouthNamingProperty }
.select { SimpleStringProperty(it.displayString) }
)
}
}
field("Mouth shapes") {
hbox {
errorProperty().bind(fileModelProperty.select { it!!.mouthShapesErrorProperty })
gridpane {
hgap = 10.0
vgap = 3.0
row {
label("Basic:")
for (shape in MouthShape.basicShapes) {
renderShapeCheckbox(shape, fileModelProperty, this)
}
}
row {
label("Extended:")
for (shape in MouthShape.extendedShapes) {
renderShapeCheckbox(shape, fileModelProperty, this)
}
}
}
}
}
field("Dialog recognizer") {
combobox<Recognizer> {
itemsProperty().bind(mainModel.recognizersProperty)
this.converter = object : StringConverter<Recognizer>() {
override fun toString(recognizer: Recognizer?): String {
return recognizer?.description ?: ""
}
override fun fromString(string: String?): Recognizer {
throw NotImplementedError()
}
}
valueProperty().bindBidirectional(mainModel.recognizerProperty)
}
}
field("Animation naming") {
textfield {
maxWidth = 100.0
textProperty().bindBidirectional(mainModel.animationPrefixProperty)
}
label("<audio event name>")
textfield {
maxWidth = 100.0
textProperty().bindBidirectional(mainModel.animationSuffixProperty)
}
}
}
fieldset("Audio events") {
tableview<AudioFileModel> {
placeholder = Label("There are no events with associated audio files.")
columnResizePolicy = SmartResize.POLICY
column("Event", AudioFileModel::eventNameProperty)
.weightedWidth(1.0)
column("Animation name", AudioFileModel::animationNameProperty)
.weightedWidth(1.0)
column("Audio file", AudioFileModel::displayFilePathProperty)
.weightedWidth(1.0)
column("Dialog", AudioFileModel::dialogProperty).apply {
weightedWidth(3.0)
// Make dialog column wrap
setCellFactory { tableColumn ->
return@setCellFactory TableCell<AudioFileModel, String>().also { cell ->
cell.graphic = Text().apply {
textProperty().bind(cell.itemProperty())
fillProperty().bind(cell.textFillProperty())
val widthProperty = tableColumn.widthProperty()
.minus(cell.paddingLeftProperty)
.minus(cell.paddingRightProperty)
wrappingWidthProperty().bind(widthProperty)
}
cell.prefHeight = Control.USE_COMPUTED_SIZE
}
}
}
column("Status", AudioFileModel::audioFileStateProperty).apply {
weightedWidth(1.0)
setCellFactory {
return@setCellFactory object : TableCell<AudioFileModel, AudioFileState>() {
override fun updateItem(state: AudioFileState?, empty: Boolean) {
super.updateItem(state, empty)
graphic = if (state != null) {
when (state.status) {
AudioFileStatus.NotAnimated -> Text("Not animated").apply {
fill = Color.GRAY
}
AudioFileStatus.Pending,
AudioFileStatus.Animating -> HBox().apply {
val progress: Double? = state.progress
val indeterminate = -1.0
val bar = progressbar(progress ?: indeterminate) {
maxWidth = Double.MAX_VALUE
}
HBox.setHgrow(bar, Priority.ALWAYS)
hbox {
minWidth = 30.0
if (progress != null) {
text("${(progress * 100).toInt()}%") {
alignment = Pos.BASELINE_RIGHT
}
}
}
}
AudioFileStatus.Canceling -> Text("Canceling")
AudioFileStatus.Done -> Text("Done").apply {
font = Font.font(font.family, FontWeight.BOLD, font.size)
}
}
} else null
}
}
}
}
column("", AudioFileModel::actionLabelProperty).apply {
weightedWidth(1.0)
// Show button
setCellFactory {
return@setCellFactory object : TableCell<AudioFileModel, String>() {
override fun updateItem(item: String?, empty: Boolean) {
super.updateItem(item, empty)
graphic = if (!empty)
Button(item).apply {
this.maxWidth = Double.MAX_VALUE
setOnAction {
val audioFileModel = this@tableview.items[index]
audioFileModel.performAction()
}
val invalidProperty: Property<Boolean> = fileModelProperty
.select { it!!.validProperty }
.select { SimpleBooleanProperty(!it) }
disableProperty().bind(invalidProperty)
}
else
null
}
}
}
}
itemsProperty().bind(fileModelProperty.select { it!!.audioFileModelsProperty })
}
}
onDragOver = EventHandler<DragEvent> { event ->
if (event.dragboard.hasFiles() && mainModel.animationFileModel?.busy != true) {
event.acceptTransferModes(TransferMode.COPY)
event.consume()
}
}
onDragDropped = EventHandler<DragEvent> { event ->
if (event.dragboard.hasFiles() && mainModel.animationFileModel?.busy != true) {
filePathTextField!!.text = event.dragboard.files.firstOrNull()?.path
event.isDropCompleted = true
event.consume()
}
}
whenUndocked {
executor.shutdownNow()
}
filePathButton!!.onAction = EventHandler<ActionEvent> {
val fileChooser = FileChooser().apply {
title = "Open Spine JSON file"
extensionFilters.addAll(
FileChooser.ExtensionFilter("Spine JSON file (*.json)", "*.json"),
FileChooser.ExtensionFilter("All files (*.*)", "*.*")
)
val lastDirectory = filePathTextField!!.text?.let { File(it).parentFile }
if (lastDirectory != null && lastDirectory.isDirectory) {
initialDirectory = lastDirectory
}
}
val file = fileChooser.showOpenDialog(this@MainView.primaryStage)
if (file != null) {
filePathTextField!!.text = file.path
}
}
}
private fun renderShapeCheckbox(shape: MouthShape, fileModelProperty: SimpleObjectProperty<AnimationFileModel?>, parent: EventTarget) {
parent.label {
textProperty().bind(
fileModelProperty
.select { it!!.mouthShapesProperty }
.select { mouthShapes ->
val hairSpace = "\u200A"
val result = shape.toString() + hairSpace + if (mouthShapes.contains(shape)) "" else ""
return@select SimpleStringProperty(result)
}
)
}
}
}

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package com.rhubarb_lip_sync.rhubarb_for_spine
data class MouthCue(val time: Double, val mouthShape: MouthShape)

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package com.rhubarb_lip_sync.rhubarb_for_spine
import java.util.*
class MouthNaming(private val prefix: String, private val suffix: String, private val mouthShapeCasing: MouthShapeCasing) {
companion object {
fun guess(mouthNames: List<String>): MouthNaming {
if (mouthNames.isEmpty()) {
return MouthNaming("", "", guessMouthShapeCasing(""))
}
val commonPrefix = mouthNames.commonPrefix
val commonSuffix = mouthNames.commonSuffix
val firstMouthName = mouthNames.first()
if (commonPrefix.length + commonSuffix.length >= firstMouthName.length) {
return MouthNaming(commonPrefix, "", guessMouthShapeCasing(""))
}
val shapeName = firstMouthName.substring(
commonPrefix.length,
firstMouthName.length - commonSuffix.length)
val mouthShapeCasing = guessMouthShapeCasing(shapeName)
return MouthNaming(commonPrefix, commonSuffix, mouthShapeCasing)
}
private fun guessMouthShapeCasing(shapeName: String): MouthShapeCasing {
return if (shapeName.isBlank() || shapeName[0].isLowerCase())
MouthShapeCasing.Lower
else
MouthShapeCasing.Upper
}
}
fun getName(mouthShape: MouthShape): String {
val name = if (mouthShapeCasing == MouthShapeCasing.Upper)
mouthShape.toString()
else
mouthShape.toString().toLowerCase(Locale.ROOT)
return "$prefix$name$suffix"
}
val displayString: String get() {
val casing = if (mouthShapeCasing == MouthShapeCasing.Upper)
"<UPPER-CASE SHAPE NAME>"
else
"<lower-case shape name>"
return "\"$prefix$casing$suffix\""
}
}
enum class MouthShapeCasing {
Upper,
Lower
}

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package com.rhubarb_lip_sync.rhubarb_for_spine
enum class MouthShape {
A, B, C, D, E, F, G, H, X;
val isBasic: Boolean
get() = this.ordinal < basicShapeCount
val isExtended: Boolean
get() = !this.isBasic
companion object {
const val basicShapeCount = 6
val basicShapes = MouthShape.values().take(basicShapeCount)
val extendedShapes = MouthShape.values().drop(basicShapeCount)
}
}

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package com.rhubarb_lip_sync.rhubarb_for_spine
import com.beust.klaxon.JsonObject
import com.beust.klaxon.Parser as JsonParser
import org.apache.commons.lang3.SystemUtils.IS_OS_WINDOWS
import java.io.*
import java.nio.charset.StandardCharsets
import java.nio.file.Files
import java.nio.file.Path
import java.util.concurrent.Callable
class RhubarbTask(
val audioFilePath: Path,
val recognizer: String,
val dialog: String?,
val extendedMouthShapes: Set<MouthShape>,
val reportProgress: (Double?) -> Unit
) : Callable<List<MouthCue>> {
override fun call(): List<MouthCue> {
if (Thread.currentThread().isInterrupted) {
throw InterruptedException()
}
if (!Files.exists(audioFilePath)) {
throw EndUserException("File '$audioFilePath' does not exist.")
}
val dialogFile = if (dialog != null) TemporaryTextFile(dialog) else null
val outputFile = TemporaryTextFile()
dialogFile.use { outputFile.use {
val processBuilder = ProcessBuilder(createProcessBuilderArgs(dialogFile?.filePath)).apply {
// See http://java-monitor.com/forum/showthread.php?t=4067
redirectOutput(outputFile.filePath.toFile())
}
val process: Process = processBuilder.start()
val stderr = BufferedReader(InputStreamReader(process.errorStream, StandardCharsets.UTF_8))
try {
while (true) {
val line = stderr.interruptibleReadLine()
val message = parseJsonObject(line)
when (message.string("type")!!) {
"progress" -> {
reportProgress(message.double("value")!!)
}
"success" -> {
reportProgress(1.0)
val resultString = String(Files.readAllBytes(outputFile.filePath), StandardCharsets.UTF_8)
return parseRhubarbResult(resultString)
}
"failure" -> {
throw EndUserException(message.string("reason") ?: "Rhubarb failed without reason.")
}
}
}
} catch (e: InterruptedException) {
process.destroyForcibly()
throw e
} catch (e: EOFException) {
throw EndUserException("Rhubarb terminated unexpectedly.")
} finally {
process.waitFor()
}
}}
throw EndUserException("Audio file processing terminated in an unexpected way.")
}
private fun parseRhubarbResult(jsonString: String): List<MouthCue> {
val json = parseJsonObject(jsonString)
val mouthCues = json.array<JsonObject>("mouthCues")!!
return mouthCues.map { mouthCue ->
val time = mouthCue.double("start")!!
val mouthShape = MouthShape.valueOf(mouthCue.string("value")!!)
return@map MouthCue(time, mouthShape)
}
}
private val jsonParser = JsonParser.default()
private fun parseJsonObject(jsonString: String): JsonObject {
return jsonParser.parse(StringReader(jsonString)) as JsonObject
}
private fun createProcessBuilderArgs(dialogFilePath: Path?): List<String> {
val extendedMouthShapesString =
if (extendedMouthShapes.any()) extendedMouthShapes.joinToString(separator = "")
else "\"\""
return mutableListOf(
rhubarbBinFilePath.toString(),
"--machineReadable",
"--recognizer", recognizer,
"--exportFormat", "json",
"--extendedShapes", extendedMouthShapesString
).apply {
if (dialogFilePath != null) {
addAll(listOf(
"--dialogFile", dialogFilePath.toString()
))
}
}.apply {
add(audioFilePath.toString())
}
}
private val guiBinDirectory: Path by lazy {
val path = urlToPath(getLocation(RhubarbTask::class.java))
return@lazy if (Files.isDirectory(path)) path.parent else path
}
private val rhubarbBinFilePath: Path by lazy {
val rhubarbBinName = if (IS_OS_WINDOWS) "rhubarb.exe" else "rhubarb"
var currentDirectory: Path? = guiBinDirectory
while (currentDirectory != null) {
val candidate: Path = currentDirectory.resolve(rhubarbBinName)
if (Files.exists(candidate)) {
return@lazy candidate
}
currentDirectory = currentDirectory.parent
}
throw EndUserException("Could not find Rhubarb Lip Sync executable '$rhubarbBinName'."
+ " Expected to find it in '$guiBinDirectory' or any directory above.")
}
private class TemporaryTextFile(text: String = "") : AutoCloseable {
val filePath: Path = Files.createTempFile(null, null).also {
Files.write(it, text.toByteArray(StandardCharsets.UTF_8))
}
override fun close() {
Files.delete(filePath)
}
}
// Same as readLine, but can be interrupted.
// Note that this function handles linebreak characters differently from readLine.
// It only consumes the first linebreak character before returning and swallows any leading
// linebreak characters.
// This behavior is much easier to implement and doesn't make any difference for our purposes.
private fun BufferedReader.interruptibleReadLine(): String {
val result = StringBuilder()
while (true) {
val char = interruptibleReadChar()
if (char == '\r' || char == '\n') {
if (result.isNotEmpty()) return result.toString()
} else {
result.append(char)
}
}
}
private fun BufferedReader.interruptibleReadChar(): Char {
while (true) {
if (Thread.currentThread().isInterrupted) {
throw InterruptedException()
}
if (ready()) {
val result: Int = read()
if (result == -1) {
throw EOFException()
}
return result.toChar()
}
Thread.yield()
}
}
}

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package com.rhubarb_lip_sync.rhubarb_for_spine
import com.beust.klaxon.*
import javafx.collections.FXCollections.observableSet
import java.nio.charset.StandardCharsets
import java.nio.file.Files
import java.nio.file.Path
class SpineJson(private val filePath: Path) {
private val fileDirectoryPath: Path = filePath.parent
private val json: JsonObject
private val skeleton: JsonObject
init {
if (!Files.exists(filePath)) {
throw EndUserException("File '$filePath' does not exist.")
}
try {
json = Parser.default().parse(filePath.toString()) as JsonObject
} catch (e: Exception) {
throw EndUserException("Wrong file format. This is not a valid JSON file.")
}
skeleton = json.obj("skeleton") ?: throw EndUserException("JSON file is corrupted.")
validateProperties()
}
private fun validateProperties() {
imagesDirectoryPath
audioDirectoryPath
}
private val imagesDirectoryPath: Path get() {
val relativeImagesDirectory = skeleton.string("images")
?: throw EndUserException("JSON file is incomplete: Images path is missing."
+ " Make sure to check 'Nonessential data' when exporting.")
val imagesDirectoryPath = fileDirectoryPath.resolve(relativeImagesDirectory).normalize()
if (!Files.exists(imagesDirectoryPath)) {
throw EndUserException("Could not find images directory relative to the JSON file."
+ " Make sure the JSON file is in the same directory as the original Spine file.")
}
return imagesDirectoryPath
}
val audioDirectoryPath: Path get() {
val relativeAudioDirectory = skeleton.string("audio")
?: throw EndUserException("JSON file is incomplete: Audio path is missing."
+ " Make sure to check 'Nonessential data' when exporting.")
val audioDirectoryPath = fileDirectoryPath.resolve(relativeAudioDirectory).normalize()
if (!Files.exists(audioDirectoryPath)) {
throw EndUserException("Could not find audio directory relative to the JSON file."
+ " Make sure the JSON file is in the same directory as the original Spine file.")
}
return audioDirectoryPath
}
val frameRate: Double get() {
return skeleton.double("fps") ?: 30.0
}
val slots: List<String> get() {
val slots = json.array("slots") ?: listOf<JsonObject>()
return slots.mapNotNull { it.string("name") }
}
fun guessMouthSlot(): String? {
return slots.firstOrNull { it.contains("mouth", ignoreCase = true) }
?: slots.firstOrNull()
}
data class AudioEvent(val name: String, val relativeAudioFilePath: String, val dialog: String?)
val audioEvents: List<AudioEvent> get() {
val events = json.obj("events") ?: JsonObject()
val result = mutableListOf<AudioEvent>()
for ((name, value) in events) {
if (value !is JsonObject) throw EndUserException("Invalid event found.")
val relativeAudioFilePath = value.string("audio") ?: continue
val dialog = value.string("string")
result.add(AudioEvent(name, relativeAudioFilePath, dialog))
}
return result
}
fun getSlotAttachmentNames(slotName: String): List<String> {
@Suppress("UNCHECKED_CAST")
val skins: Collection<JsonObject> = when (val skinsObject = json["skins"]) {
is JsonObject -> skinsObject.values as Collection<JsonObject>
is JsonArray<*> -> skinsObject as Collection<JsonObject>
else -> emptyList()
}
// Get attachment names for all skins
return skins
.flatMap { skin ->
skin.obj(slotName)?.keys?.toList()
?: skin.obj("attachments")?.obj(slotName)?.keys?.toList()
?: emptyList<String>()
}
.distinct()
}
val animationNames = observableSet<String>(
json.obj("animations")?.map{ it.key }?.toMutableSet() ?: mutableSetOf()
)
fun createOrUpdateAnimation(mouthCues: List<MouthCue>, eventName: String, animationName: String,
mouthSlot: String, mouthNaming: MouthNaming
) {
if (!json.containsKey("animations")) {
json["animations"] = JsonObject()
}
val animations: JsonObject = json.obj("animations")!!
// Round times to full frames. Always round down.
// If events coincide, prefer the latest one.
val keyframes = mutableMapOf<Int, MouthShape>()
for (mouthCue in mouthCues) {
val frameNumber = (mouthCue.time * frameRate).toInt()
keyframes[frameNumber] = mouthCue.mouthShape
}
animations[animationName] = JsonObject().apply {
this["slots"] = JsonObject().apply {
this[mouthSlot] = JsonObject().apply {
this["attachment"] = JsonArray(
keyframes
.toSortedMap()
.map { (frameNumber, mouthShape) ->
JsonObject().apply {
this["time"] = frameNumber / frameRate
this["name"] = mouthNaming.getName(mouthShape)
}
}
)
}
}
this["events"] = JsonArray(
JsonObject().apply {
this["time"] = 0.0
this["name"] = eventName
this["string"] = ""
}
)
}
animationNames.add(animationName)
}
override fun toString(): String {
return json.toJsonString(prettyPrint = true)
}
fun save() {
Files.write(filePath, listOf(toString()), StandardCharsets.UTF_8)
}
}

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package com.rhubarb_lip_sync.rhubarb_for_spine
import java.io.FileInputStream
import java.net.MalformedURLException
import java.net.URISyntaxException
import java.net.URL
import org.apache.commons.lang3.SystemUtils.IS_OS_WINDOWS
import java.nio.file.Path
import java.nio.file.Paths
// The following code is adapted from https://stackoverflow.com/a/12733172/52041
/**
* Gets the base location of the given class.
*
* If the class is directly on the file system (e.g.,
* "/path/to/my/package/MyClass.class") then it will return the base directory
* (e.g., "file:/path/to").
*
* If the class is within a JAR file (e.g.,
* "/path/to/my-jar.jar!/my/package/MyClass.class") then it will return the
* path to the JAR (e.g., "file:/path/to/my-jar.jar").
*
* @param c The class whose location is desired.
*/
fun getLocation(c: Class<*>): URL {
// Try the easy way first
try {
val codeSourceLocation = c.protectionDomain.codeSource.location
if (codeSourceLocation != null) return codeSourceLocation
} catch (e: SecurityException) {
// Cannot access protection domain
} catch (e: NullPointerException) {
// Protection domain or code source is null
}
// The easy way failed, so we try the hard way. We ask for the class
// itself as a resource, then strip the class's path from the URL string,
// leaving the base path.
// Get the class's raw resource path
val classResource = c.getResource(c.simpleName + ".class")
?: throw Exception("Cannot find class resource.")
val url = classResource.toString()
val suffix = c.canonicalName.replace('.', '/') + ".class"
if (!url.endsWith(suffix)) throw Exception("Malformed URL.")
// strip the class's path from the URL string
val base = url.substring(0, url.length - suffix.length)
var path = base
// remove the "jar:" prefix and "!/" suffix, if present
if (path.startsWith("jar:")) path = path.substring(4, path.length - 2)
return URL(path)
}
/**
* Converts the given URL to its corresponding [Path].
*
* @param url The URL to convert.
* @return A file path suitable for use with e.g. [FileInputStream]
*/
fun urlToPath(url: URL): Path {
var pathString = url.toString()
if (pathString.startsWith("jar:")) {
// Remove "jar:" prefix and "!/" suffix
val index = pathString.indexOf("!/")
pathString = pathString.substring(4, index)
}
try {
if (IS_OS_WINDOWS && pathString.matches("file:[A-Za-z]:.*".toRegex())) {
pathString = "file:/" + pathString.substring(5)
}
return Paths.get(URL(pathString).toURI())
} catch (e: MalformedURLException) {
// URL is not completely well-formed.
} catch (e: URISyntaxException) {
// URL is not completely well-formed.
}
if (pathString.startsWith("file:")) {
// Pass through the URL as-is, minus "file:" prefix
pathString = pathString.substring(5)
return Paths.get(pathString)
}
throw IllegalArgumentException("Invalid URL: $url")
}

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package com.rhubarb_lip_sync.rhubarb_for_spine
import javafx.application.Application
fun main(args: Array<String>) {
Application.launch(MainApp::class.java, *args)
}

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package com.rhubarb_lip_sync.rhubarb_for_spine
import javafx.application.Platform
import javafx.beans.property.Property
import java.util.concurrent.locks.ReentrantLock
import kotlin.concurrent.withLock
import java.io.PrintWriter
import java.io.StringWriter
val List<String>.commonPrefix: String get() {
return if (isEmpty()) "" else this.reduce { result, string -> result.commonPrefixWith(string) }
}
val List<String>.commonSuffix: String get() {
return if (isEmpty()) "" else this.reduce { result, string -> result.commonSuffixWith(string) }
}
fun <TValue, TProperty : Property<TValue>> TProperty.alsoListen(listener: (TValue) -> Unit) : TProperty {
// Notify the listener of the initial value.
// If we did this synchronously, the listener's state would have to be fully initialized the
// moment this function is called. So calling this function during object initialization might
// result in access to uninitialized state.
Platform.runLater { listener(this.value) }
addListener({ _, _, newValue -> listener(newValue)})
return this
}
fun getExceptionMessage(action: () -> Unit): String? {
try {
action()
} catch (e: Exception) {
return e.message
}
return null
}
/**
* Invokes a Runnable on the JFX thread and waits until it's finished.
* Similar to SwingUtilities.invokeAndWait.
* Based on http://www.guigarage.com/2013/01/invokeandwait-for-javafx/
*
* @throws InterruptedException Execution was interrupted
* @throws Throwable An exception occurred in the run method of the Runnable
*/
fun runAndWait(action: () -> Unit) {
if (Platform.isFxApplicationThread()) {
action()
} else {
val lock = ReentrantLock()
lock.withLock {
val doneCondition = lock.newCondition()
var throwable: Throwable? = null
Platform.runLater {
lock.withLock {
try {
action()
} catch (e: Throwable) {
throwable = e
} finally {
doneCondition.signal()
}
}
}
doneCondition.await()
throwable?.let { throw it }
}
}
}
fun getStackTrace(e: Exception): String {
val stringWriter = StringWriter()
e.printStackTrace(PrintWriter(stringWriter))
return stringWriter.toString()
}

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{
"skeleton": { "hash": "voNIQumqp3+UQAl32SwHzLMEDaI", "spine": "3.7.04-beta", "width": 795, "height": 1249.62 },
"bones": [
{ "name": "root" },
{ "name": "torso", "parent": "root", "length": 394.49, "rotation": 90, "y": 100 },
{ "name": "head", "parent": "torso", "length": 515.83, "x": 390 },
{ "name": "legs", "parent": "torso", "length": 79.85, "rotation": 180, "x": -6 }
],
"slots": [
{ "name": "legs", "bone": "legs", "attachment": "legs" },
{ "name": "torso", "bone": "torso", "attachment": "torso" },
{ "name": "head", "bone": "head", "attachment": "head" },
{ "name": "mouth", "bone": "head", "attachment": "mouth_d" }
],
"skins": {
"default": {
"head": {
"head": { "x": 305.19, "y": -3.37, "rotation": -90, "width": 795, "height": 908 }
},
"legs": {
"legs": { "x": 20.93, "y": 9.45, "rotation": 90, "width": 602, "height": 147 }
},
"mouth": {
"mouth_a": { "x": -53.21, "y": -2.6, "rotation": -90, "width": 118, "height": 27 },
"mouth_b": { "x": -38.68, "y": -0.88, "rotation": -90, "width": 170, "height": 59 },
"mouth_c": { "x": -45.57, "y": -2.21, "rotation": -90, "width": 145, "height": 71 },
"mouth_d": { "x": -50.58, "y": -16.55, "rotation": -90, "width": 122, "height": 91 },
"mouth_e": { "x": -47.51, "y": 1.69, "rotation": -90, "width": 105, "height": 73 },
"mouth_f": { "x": -42.7, "y": -1.9, "rotation": -90, "width": 55, "height": 54 },
"mouth_g": { "x": -42.77, "y": 2.56, "rotation": -90, "width": 141, "height": 37 },
"mouth_h": { "x": -44.53, "y": 1.07, "rotation": -90, "width": 141, "height": 71 }
},
"torso": {
"torso": { "x": 185.9, "y": 0.39, "rotation": -90, "width": 741, "height": 449 }
}
}
},
"events": {
"doornail": {
"string": "Marley was dead: to begin with. There is no doubt whatever about that. The register of his burial was signed by the clergyman, the clerk, the undertaker, and the chief mourner. Scrooge signed it: and Scrooge's name was good upon 'Change, for anything he chose to put his hand to. Old Marley was as dead as a door-nail.Mind! I don't mean to say that I know, of my own knowledge, what there is particularly dead about a door-nail. I might have been inclined, myself, to regard a coffin-nail as the deadest piece of ironmongery in the trade. But the wisdom of our ancestors is in the simile; and my unhallowed hands shall not disturb it, or the Country's done for. You will therefore permit me to repeat, emphatically, that Marley was as dead as a door-nail.",
"audio": "doornail.wav"
},
"hi": { "audio": "hi.wav" }
},
"animations": {
"say_test": {
"slots": {
"mouth": {
"attachment": [
{ "time": 0, "name": "mouth_a" },
{ "time": 0.1, "name": "mouth_b" },
{ "time": 0.2, "name": "mouth_c" },
{ "time": 0.2667, "name": "mouth_d" },
{ "time": 0.3667, "name": "mouth_c" },
{ "time": 0.4333, "name": "mouth_a" },
{ "time": 0.5333, "name": "mouth_e" },
{ "time": 0.6, "name": "mouth_f" },
{ "time": 0.7, "name": "mouth_e" },
{ "time": 0.8, "name": "mouth_g" },
{ "time": 0.8667, "name": "mouth_c" },
{ "time": 0.9667, "name": "mouth_h" },
{ "time": 1.0667, "name": "mouth_a" }
]
}
},
"events": [
{ "time": 0.8667, "name": "doornail", "string": "" }
]
},
"shake_head": {
"bones": {
"head": {
"rotate": [
{
"time": 0,
"angle": 0,
"curve": [ 0.25, 0, 0.75, 1 ]
},
{
"time": 0.1667,
"angle": 10.02,
"curve": [ 0.25, 0, 0.75, 1 ]
},
{
"time": 0.5,
"angle": -9.37,
"curve": [ 0.25, 0, 0.75, 1 ]
},
{
"time": 0.8333,
"angle": 10.39,
"curve": [ 0.574, 0, 0.666, 1 ]
},
{ "time": 1.5, "angle": 0 }
]
}
}
},
"walk": {
"bones": {
"torso": {
"translate": [
{
"time": 0,
"x": 0,
"y": 0,
"curve": [ 0, 0.5, 0.75, 1 ]
},
{
"time": 0.1333,
"x": 0,
"y": 30,
"curve": [ 0.25, 0, 1, 0.49 ]
},
{ "time": 0.2667, "x": 0, "y": 0 }
]
}
}
}
}
}

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{
"skeleton": { "hash": "nWA5IiZBBeDJ6tKyTnjtIfu1GXE", "spine": "3.7.94", "width": 795, "height": 1249.62, "images": "./images/", "audio": "./audio/" },
"bones": [
{ "name": "root" },
{ "name": "torso", "parent": "root", "length": 394.49, "rotation": 90, "y": 100 },
{ "name": "head", "parent": "torso", "length": 515.83, "x": 390 },
{ "name": "legs", "parent": "torso", "length": 79.85, "rotation": 180, "x": -6 }
],
"slots": [
{ "name": "legs", "bone": "legs", "attachment": "legs" },
{ "name": "torso", "bone": "torso", "attachment": "torso" },
{ "name": "head", "bone": "head", "attachment": "head" },
{ "name": "mouth", "bone": "head", "attachment": "mouth_c" }
],
"skins": {
"default": {
"head": {
"head": { "x": 305.19, "y": -3.37, "rotation": -90, "width": 795, "height": 908 }
},
"legs": {
"legs": { "x": 20.93, "y": 9.45, "rotation": 90, "width": 602, "height": 147 }
},
"mouth": {
"mouth_a": { "x": -53.21, "y": -2.6, "rotation": -90, "width": 118, "height": 27 },
"mouth_b": { "x": -38.68, "y": -0.88, "rotation": -90, "width": 170, "height": 59 },
"mouth_c": { "x": -45.57, "y": -2.21, "rotation": -90, "width": 145, "height": 71 },
"mouth_d": { "x": -50.58, "y": -16.55, "rotation": -90, "width": 122, "height": 91 },
"mouth_e": { "x": -47.51, "y": 1.69, "rotation": -90, "width": 105, "height": 73 },
"mouth_f": { "x": -42.7, "y": -1.9, "rotation": -90, "width": 55, "height": 54 },
"mouth_g": { "x": -42.77, "y": 2.56, "rotation": -90, "width": 141, "height": 37 },
"mouth_h": { "x": -44.53, "y": 1.07, "rotation": -90, "width": 141, "height": 71 }
},
"torso": {
"torso": { "x": 185.9, "y": 0.39, "rotation": -90, "width": 741, "height": 449 }
}
}
},
"events": {
"1-have-you-heard": { "audio": "1-have-you-heard.wav" },
"2-it's-a-tool": { "audio": "2-it's-a-tool.wav" },
"3-and-now-you-can": { "audio": "3-and-now-you-can.wav" }
},
"animations": {
"shake_head": {
"bones": {
"head": {
"rotate": [
{
"time": 0,
"angle": 0,
"curve": [ 0.25, 0, 0.75, 1 ]
},
{
"time": 0.1667,
"angle": 10.02,
"curve": [ 0.25, 0, 0.75, 1 ]
},
{
"time": 0.5,
"angle": -9.37,
"curve": [ 0.25, 0, 0.75, 1 ]
},
{
"time": 0.8333,
"angle": 10.39,
"curve": [ 0.574, 0, 0.666, 1 ]
},
{ "time": 1.5, "angle": 0 }
]
}
}
},
"walk": {
"bones": {
"torso": {
"translate": [
{
"time": 0,
"x": 0,
"y": 0,
"curve": [ 0, 0.5, 0.75, 1 ]
},
{
"time": 0.1333,
"x": 0,
"y": 30,
"curve": [ 0.25, 0, 1, 0.49 ]
},
{ "time": 0.2667, "x": 0, "y": 0 }
]
}
}
}
}
}

View File

@ -0,0 +1,72 @@
{
"skeleton": { "hash": "rSEJPpMBeapC2jv56cUew+IkQd0", "spine": "3.8.42-beta", "x": -394.13, "y": -0.43, "width": 795, "height": 1249.62 },
"bones": [
{ "name": "root" },
{ "name": "torso", "parent": "root", "length": 394.49, "rotation": 90, "y": 100 },
{ "name": "head", "parent": "torso", "length": 515.83, "x": 390 },
{ "name": "legs", "parent": "torso", "length": 79.85, "rotation": 180, "x": -6 }
],
"slots": [
{ "name": "legs", "bone": "legs", "attachment": "legs" },
{ "name": "torso", "bone": "torso", "attachment": "torso" },
{ "name": "head", "bone": "head", "attachment": "head" },
{ "name": "mouth", "bone": "head", "attachment": "mouth_c" }
],
"skins": [
{
"name": "default",
"attachments": {
"mouth": {
"mouth_a": { "x": -53.21, "y": -2.6, "rotation": -90, "width": 118, "height": 27 },
"mouth_b": { "x": -38.68, "y": -0.88, "rotation": -90, "width": 170, "height": 59 },
"mouth_c": { "x": -45.57, "y": -2.21, "rotation": -90, "width": 145, "height": 71 },
"mouth_d": { "x": -50.58, "y": -16.55, "rotation": -90, "width": 122, "height": 91 },
"mouth_e": { "x": -47.51, "y": 1.69, "rotation": -90, "width": 105, "height": 73 },
"mouth_f": { "x": -42.7, "y": -1.9, "rotation": -90, "width": 55, "height": 54 },
"mouth_g": { "x": -42.77, "y": 2.56, "rotation": -90, "width": 141, "height": 37 },
"mouth_h": { "x": -44.53, "y": 1.07, "rotation": -90, "width": 141, "height": 71 }
},
"head": {
"head": { "x": 305.19, "y": -3.37, "rotation": -90, "width": 795, "height": 908 }
},
"legs": {
"legs": { "x": 20.93, "y": 9.45, "rotation": 90, "width": 602, "height": 147 }
},
"torso": {
"torso": { "x": 185.9, "y": 0.39, "rotation": -90, "width": 741, "height": 449 }
}
}
}
],
"events": {
"1-have-you-heard": { "audio": "1-have-you-heard.wav" },
"2-it's-a-tool": { "audio": "2-it's-a-tool.wav" },
"3-and-now-you-can": { "audio": "3-and-now-you-can.wav" }
},
"animations": {
"shake_head": {
"bones": {
"head": {
"rotate": [
{ "curve": 0.25, "c3": 0.75 },
{ "time": 0.1667, "angle": 10.02, "curve": 0.25, "c3": 0.75 },
{ "time": 0.5, "angle": -9.37, "curve": 0.25, "c3": 0.75 },
{ "time": 0.8333, "angle": 10.39, "curve": 0.574, "c3": 0.666 },
{ "time": 1.5 }
]
}
}
},
"walk": {
"bones": {
"torso": {
"translate": [
{ "curve": 0, "c2": 0.5, "c3": 0.75 },
{ "time": 0.1333, "y": 30, "curve": 0.25, "c4": 0.49 },
{ "time": 0.2667 }
]
}
}
}
}
}

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@ -0,0 +1,81 @@
{
"skeleton": {
"hash": "sH1atSHvppLIr/A6E6H7PXWiU4s",
"spine": "3.8.42-beta",
"x": -394.13,
"y": -0.43,
"width": 795,
"height": 1249.62,
"images": "./images/",
"audio": "./audio/"
},
"bones": [
{ "name": "root" },
{ "name": "torso", "parent": "root", "length": 394.49, "rotation": 90, "y": 100 },
{ "name": "head", "parent": "torso", "length": 515.83, "x": 390 },
{ "name": "legs", "parent": "torso", "length": 79.85, "rotation": 180, "x": -6 }
],
"slots": [
{ "name": "legs", "bone": "legs", "attachment": "legs" },
{ "name": "torso", "bone": "torso", "attachment": "torso" },
{ "name": "head", "bone": "head", "attachment": "head" },
{ "name": "mouth", "bone": "head", "attachment": "mouth_c" }
],
"skins": [
{
"name": "default",
"attachments": {
"mouth": {
"mouth_a": { "x": -53.21, "y": -2.6, "rotation": -90, "width": 118, "height": 27 },
"mouth_b": { "x": -38.68, "y": -0.88, "rotation": -90, "width": 170, "height": 59 },
"mouth_c": { "x": -45.57, "y": -2.21, "rotation": -90, "width": 145, "height": 71 },
"mouth_d": { "x": -50.58, "y": -16.55, "rotation": -90, "width": 122, "height": 91 },
"mouth_e": { "x": -47.51, "y": 1.69, "rotation": -90, "width": 105, "height": 73 },
"mouth_f": { "x": -42.7, "y": -1.9, "rotation": -90, "width": 55, "height": 54 },
"mouth_g": { "x": -42.77, "y": 2.56, "rotation": -90, "width": 141, "height": 37 },
"mouth_h": { "x": -44.53, "y": 1.07, "rotation": -90, "width": 141, "height": 71 }
},
"head": {
"head": { "x": 305.19, "y": -3.37, "rotation": -90, "width": 795, "height": 908 }
},
"legs": {
"legs": { "x": 20.93, "y": 9.45, "rotation": 90, "width": 602, "height": 147 }
},
"torso": {
"torso": { "x": 185.9, "y": 0.39, "rotation": -90, "width": 741, "height": 449 }
}
}
}
],
"events": {
"1-have-you-heard": { "audio": "1-have-you-heard.wav" },
"2-it's-a-tool": { "audio": "2-it's-a-tool.wav" },
"3-and-now-you-can": { "audio": "3-and-now-you-can.wav" }
},
"animations": {
"shake_head": {
"bones": {
"head": {
"rotate": [
{ "curve": 0.25, "c3": 0.75 },
{ "time": 0.1667, "angle": 10.02, "curve": 0.25, "c3": 0.75 },
{ "time": 0.5, "angle": -9.37, "curve": 0.25, "c3": 0.75 },
{ "time": 0.8333, "angle": 10.39, "curve": 0.574, "c3": 0.666 },
{ "time": 1.5 }
]
}
}
},
"walk": {
"bones": {
"torso": {
"translate": [
{ "curve": 0, "c2": 0.5, "c3": 0.75 },
{ "time": 0.1333, "y": 30, "curve": 0.25, "c4": 0.49 },
{ "time": 0.2667 }
]
}
}
}
}
}

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package com.rhubarb_lip_sync.rhubarb_for_spine
import org.junit.jupiter.api.Nested
import org.junit.jupiter.api.Test
import java.nio.file.Paths
import org.assertj.core.api.Assertions.assertThat
import org.assertj.core.api.Assertions.catchThrowable
class SpineJsonTest {
@Nested
inner class `file format 3_7` {
@Test
fun `correctly reads valid file`() {
val path = Paths.get("src/test/data/jsonFiles/matt-3.7.json").toAbsolutePath()
val spine = SpineJson(path)
assertThat(spine.audioDirectoryPath)
.isEqualTo(Paths.get("src/test/data/jsonFiles/audio").toAbsolutePath())
assertThat(spine.frameRate).isEqualTo(30.0)
assertThat(spine.slots).containsExactly("legs", "torso", "head", "mouth")
assertThat(spine.guessMouthSlot()).isEqualTo("mouth")
assertThat(spine.audioEvents).containsExactly(
SpineJson.AudioEvent("1-have-you-heard", "1-have-you-heard.wav", null),
SpineJson.AudioEvent("2-it's-a-tool", "2-it's-a-tool.wav", null),
SpineJson.AudioEvent("3-and-now-you-can", "3-and-now-you-can.wav", null)
)
assertThat(spine.getSlotAttachmentNames("mouth")).isEqualTo(('a'..'h').map{ "mouth_$it" })
assertThat(spine.animationNames).containsExactly("shake_head", "walk")
}
@Test
fun `throws on file without nonessential data`() {
val path = Paths.get("src/test/data/jsonFiles/matt-3.7-essential.json").toAbsolutePath()
val throwable = catchThrowable { SpineJson(path) }
assertThat(throwable)
.hasMessage("JSON file is incomplete: Images path is missing. Make sure to check 'Nonessential data' when exporting.")
}
}
@Nested
inner class `file format 3_8` {
@Test
fun `correctly reads valid file`() {
val path = Paths.get("src/test/data/jsonFiles/matt-3.8.json").toAbsolutePath()
val spine = SpineJson(path)
assertThat(spine.audioDirectoryPath)
.isEqualTo(Paths.get("src/test/data/jsonFiles/audio").toAbsolutePath())
assertThat(spine.frameRate).isEqualTo(30.0)
assertThat(spine.slots).containsExactly("legs", "torso", "head", "mouth")
assertThat(spine.guessMouthSlot()).isEqualTo("mouth")
assertThat(spine.audioEvents).containsExactly(
SpineJson.AudioEvent("1-have-you-heard", "1-have-you-heard.wav", null),
SpineJson.AudioEvent("2-it's-a-tool", "2-it's-a-tool.wav", null),
SpineJson.AudioEvent("3-and-now-you-can", "3-and-now-you-can.wav", null)
)
assertThat(spine.getSlotAttachmentNames("mouth")).isEqualTo(('a'..'h').map{ "mouth_$it" })
assertThat(spine.animationNames).containsExactly("shake_head", "walk")
}
@Test
fun `throws on file without nonessential data`() {
val path = Paths.get("src/test/data/jsonFiles/matt-3.8-essential.json").toAbsolutePath()
val throwable = catchThrowable { SpineJson(path) }
assertThat(throwable)
.hasMessage("JSON file is incomplete: Images path is missing. Make sure to check 'Nonessential data' when exporting.")
}
}
}

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junit.jupiter.testinstance.lifecycle.default = per_class

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cmake_minimum_required(VERSION 3.24)
set(vegasFiles
"Debug Rhubarb.cs"
"Debug Rhubarb.cs.config"
"Import Rhubarb.cs"
"Import Rhubarb.cs.config"
"README.adoc"
)
install(
FILES ${vegasFiles}
DESTINATION "extras/MagixVegas"
)

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@ -0,0 +1,23 @@
= Scripts for Magix Vegas
If you own a copy of http://www.vegascreativesoftware.com/[Magix Vegas] (previously Sony Vegas), you can use this script to visualize Rhubarb Lip Syncs output on the timeline. This can be useful for creating lip-synced videos or for debugging.
== Installation
Copy (or symlink) the files in this directory to `<Vegas installation directory>\Script Menu`. When you restart Vegas, youll find two new menu items:
* _Tools > Scripting > Import Rhubarb:_ This will create a new Vegas project and add two tracks: a video track with a visualization of Rhubarb Lip Syncs output and an audio track with the original recording.
* _Tools > Scripting > Debug Rhubarb:_ This will create markers or regions on the timeline visualizing Rhubarb Lip Syncs internal data from a log file. You can obtain a log file by redirecting `+stdout+`. Ive written this script mainly as a debugging aid for myself; feel free to contact me if youre interested and need a more thorough explanation.
== How to perform lip sync
You cannot perform lip sync directly from the Vegas scripts. Instead, run Rhubarb Lip Sync from the command line, specifying the XML output format.
== How to create an animation
Select _Tools > Scripting > Import Rhubarb_. Fill in at least the following fields:
* One image file: You need a set of image files, one for each mouth shapes. All image files should have the same size and should end with "`-<mouth shape>`", for instance _alison-a.png_, _alison-b.png_, and so on. Click the "`...`" button at the right of this field and select one of these image files. The script will automatically find the other image files.
* XML file: Click the "`...`" button at the right of this field and select the XML file created by Rhubarb Lip Sync.
Click _OK_ to create the animation.

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@ -1,8 +0,0 @@
# Scripts for Magix Vegas
If you own a copy of [Magix Vegas](http://www.vegascreativesoftware.com/) (previously Sony Vegas), you can use this script to visualize Rhubarb Lip Sync's output on the timeline. This can be useful for creating lip-synced videos or for debugging.
Copy (or symlink) the files in this directory to `<Vegas installation directory>\Script Menu`. When you restart Vegas, you'll find two new menu items:
* *Tools > Scripting > Import Rhubarb:* This will create a new Vegas project and add two tracks: a video track with a visualization of Rhubarb Lip Sync's output and an audio track with the original recording.
* *Tools > Scripting > Debug Rhubarb:* This will create markers or regions on the timeline visualizing Rhubarb Lip Sync's internal data from a log file. You can obtain a log file by redirecting `stdout`. I've written this script mainly as a debugging aid for myself; feel free to contact me if you're interested and need a more thorough explanation.

BIN
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@ -1,46 +0,0 @@
# Build matrix / environment variable are explained on:
# http://about.travis-ci.org/docs/user/build-configuration/
# This file can be validated on:
# http://lint.travis-ci.org/
install:
# /usr/bin/gcc is 4.6 always, but gcc-X.Y is available.
- if [ "$CXX" = "g++" ]; then export CXX="g++-4.9" CC="gcc-4.9"; fi
# /usr/bin/clang is 3.4, lets override with modern one.
- if [ "$CXX" = "clang++" ] && [ "$TRAVIS_OS_NAME" = "linux" ]; then export CXX="clang++-3.7" CC="clang-3.7"; fi
- echo ${PATH}
- echo ${CXX}
- ${CXX} --version
- ${CXX} -v
addons:
apt:
# List of whitelisted in travis packages for ubuntu-precise can be found here:
# https://github.com/travis-ci/apt-package-whitelist/blob/master/ubuntu-precise
# List of whitelisted in travis apt-sources:
# https://github.com/travis-ci/apt-source-whitelist/blob/master/ubuntu.json
sources:
- ubuntu-toolchain-r-test
- llvm-toolchain-precise-3.7
packages:
- gcc-4.9
- g++-4.9
- clang-3.7
- valgrind
os:
- linux
- osx
language: cpp
compiler:
- gcc
- clang
script: ./travis.sh
env:
matrix:
- GTEST_TARGET=googletest SHARED_LIB=OFF STATIC_LIB=ON CMAKE_PKG=OFF BUILD_TYPE=debug VERBOSE_MAKE=true VERBOSE
- GTEST_TARGET=googlemock SHARED_LIB=OFF STATIC_LIB=ON CMAKE_PKG=OFF BUILD_TYPE=debug VERBOSE_MAKE=true VERBOSE
- GTEST_TARGET=googlemock SHARED_LIB=OFF STATIC_LIB=ON CMAKE_PKG=OFF BUILD_TYPE=debug CXX_FLAGS=-std=c++11 VERBOSE_MAKE=true VERBOSE
# - GTEST_TARGET=googletest SHARED_LIB=ON STATIC_LIB=ON CMAKE_PKG=ON BUILD_TYPE=release VERBOSE_MAKE=false
# - GTEST_TARGET=googlemock SHARED_LIB=ON STATIC_LIB=ON CMAKE_PKG=ON BUILD_TYPE=release VERBOSE_MAKE=false
notifications:
email: false
sudo: false

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@ -1,16 +0,0 @@
cmake_minimum_required(VERSION 2.6.2)
project( googletest-distribution )
enable_testing()
option(BUILD_GTEST "Builds the googletest subproject" OFF)
#Note that googlemock target already builds googletest
option(BUILD_GMOCK "Builds the googlemock subproject" ON)
if(BUILD_GMOCK)
add_subdirectory( googlemock )
elseif(BUILD_GTEST)
add_subdirectory( googletest )
endif()

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@ -1,138 +0,0 @@
# Google Test #
[![Build Status](https://travis-ci.org/google/googletest.svg?branch=master)](https://travis-ci.org/google/googletest)
Welcome to **Google Test**, Google's C++ test framework!
This repository is a merger of the formerly separate GoogleTest and
GoogleMock projects. These were so closely related that it makes sense to
maintain and release them together.
Please see the project page above for more information as well as the
mailing list for questions, discussions, and development. There is
also an IRC channel on OFTC (irc.oftc.net) #gtest available. Please
join us!
**Google Mock** is an extension to Google Test for writing and using C++ mock
classes. See the separate [Google Mock documentation](googlemock/README.md).
More detailed documentation for googletest (including build instructions) are
in its interior [googletest/README.md](googletest/README.md) file.
## Features ##
* An [XUnit](https://en.wikipedia.org/wiki/XUnit) test framework.
* Test discovery.
* A rich set of assertions.
* User-defined assertions.
* Death tests.
* Fatal and non-fatal failures.
* Value-parameterized tests.
* Type-parameterized tests.
* Various options for running the tests.
* XML test report generation.
## Platforms ##
Google test has been used on a variety of platforms:
* Linux
* Mac OS X
* Windows
* Cygwin
* MinGW
* Windows Mobile
* Symbian
## Who Is Using Google Test? ##
In addition to many internal projects at Google, Google Test is also used by
the following notable projects:
* The [Chromium projects](http://www.chromium.org/) (behind the Chrome
browser and Chrome OS).
* The [LLVM](http://llvm.org/) compiler.
* [Protocol Buffers](https://github.com/google/protobuf), Google's data
interchange format.
* The [OpenCV](http://opencv.org/) computer vision library.
## Related Open Source Projects ##
[Google Test UI](https://github.com/ospector/gtest-gbar) is test runner that runs
your test binary, allows you to track its progress via a progress bar, and
displays a list of test failures. Clicking on one shows failure text. Google
Test UI is written in C#.
[GTest TAP Listener](https://github.com/kinow/gtest-tap-listener) is an event
listener for Google Test that implements the
[TAP protocol](https://en.wikipedia.org/wiki/Test_Anything_Protocol) for test
result output. If your test runner understands TAP, you may find it useful.
## Requirements ##
Google Test is designed to have fairly minimal requirements to build
and use with your projects, but there are some. Currently, we support
Linux, Windows, Mac OS X, and Cygwin. We will also make our best
effort to support other platforms (e.g. Solaris, AIX, and z/OS).
However, since core members of the Google Test project have no access
to these platforms, Google Test may have outstanding issues there. If
you notice any problems on your platform, please notify
<googletestframework@googlegroups.com>. Patches for fixing them are
even more welcome!
### Linux Requirements ###
These are the base requirements to build and use Google Test from a source
package (as described below):
* GNU-compatible Make or gmake
* POSIX-standard shell
* POSIX(-2) Regular Expressions (regex.h)
* A C++98-standard-compliant compiler
### Windows Requirements ###
* Microsoft Visual C++ v7.1 or newer
### Cygwin Requirements ###
* Cygwin v1.5.25-14 or newer
### Mac OS X Requirements ###
* Mac OS X v10.4 Tiger or newer
* XCode Developer Tools
### Requirements for Contributors ###
We welcome patches. If you plan to contribute a patch, you need to
build Google Test and its own tests from a git checkout (described
below), which has further requirements:
* [Python](https://www.python.org/) v2.3 or newer (for running some of
the tests and re-generating certain source files from templates)
* [CMake](https://cmake.org/) v2.6.4 or newer
## Regenerating Source Files ##
Some of Google Test's source files are generated from templates (not
in the C++ sense) using a script.
For example, the
file include/gtest/internal/gtest-type-util.h.pump is used to generate
gtest-type-util.h in the same directory.
You don't need to worry about regenerating the source files
unless you need to modify them. You would then modify the
corresponding `.pump` files and run the '[pump.py](googletest/scripts/pump.py)'
generator script. See the [Pump Manual](googletest/docs/PumpManual.md).
### Contributing Code ###
We welcome patches. Please read the
[Developer's Guide](googletest/docs/DevGuide.md)
for how you can contribute. In particular, make sure you have signed
the Contributor License Agreement, or we won't be able to accept the
patch.
Happy testing!

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@ -1,126 +0,0 @@
Changes for 1.7.0:
* All new improvements in Google Test 1.7.0.
* New feature: matchers DoubleNear(), FloatNear(),
NanSensitiveDoubleNear(), NanSensitiveFloatNear(),
UnorderedElementsAre(), UnorderedElementsAreArray(), WhenSorted(),
WhenSortedBy(), IsEmpty(), and SizeIs().
* Improvement: Google Mock can now be built as a DLL.
* Improvement: when compiled by a C++11 compiler, matchers AllOf()
and AnyOf() can accept an arbitrary number of matchers.
* Improvement: when compiled by a C++11 compiler, matchers
ElementsAreArray() can accept an initializer list.
* Improvement: when exceptions are enabled, a mock method with no
default action now throws instead crashing the test.
* Improvement: added class testing::StringMatchResultListener to aid
definition of composite matchers.
* Improvement: function return types used in MOCK_METHOD*() macros can
now contain unprotected commas.
* Improvement (potentially breaking): EXPECT_THAT() and ASSERT_THAT()
are now more strict in ensuring that the value type and the matcher
type are compatible, catching potential bugs in tests.
* Improvement: Pointee() now works on an optional<T>.
* Improvement: the ElementsAreArray() matcher can now take a vector or
iterator range as input, and makes a copy of its input elements
before the conversion to a Matcher.
* Improvement: the Google Mock Generator can now generate mocks for
some class templates.
* Bug fix: mock object destruction triggerred by another mock object's
destruction no longer hangs.
* Improvement: Google Mock Doctor works better with newer Clang and
GCC now.
* Compatibility fixes.
* Bug/warning fixes.
Changes for 1.6.0:
* Compilation is much faster and uses much less memory, especially
when the constructor and destructor of a mock class are moved out of
the class body.
* New matchers: Pointwise(), Each().
* New actions: ReturnPointee() and ReturnRefOfCopy().
* CMake support.
* Project files for Visual Studio 2010.
* AllOf() and AnyOf() can handle up-to 10 arguments now.
* Google Mock doctor understands Clang error messages now.
* SetArgPointee<> now accepts string literals.
* gmock_gen.py handles storage specifier macros and template return
types now.
* Compatibility fixes.
* Bug fixes and implementation clean-ups.
* Potentially incompatible changes: disables the harmful 'make install'
command in autotools.
Potentially breaking changes:
* The description string for MATCHER*() changes from Python-style
interpolation to an ordinary C++ string expression.
* SetArgumentPointee is deprecated in favor of SetArgPointee.
* Some non-essential project files for Visual Studio 2005 are removed.
Changes for 1.5.0:
* New feature: Google Mock can be safely used in multi-threaded tests
on platforms having pthreads.
* New feature: function for printing a value of arbitrary type.
* New feature: function ExplainMatchResult() for easy definition of
composite matchers.
* The new matcher API lets user-defined matchers generate custom
explanations more directly and efficiently.
* Better failure messages all around.
* NotNull() and IsNull() now work with smart pointers.
* Field() and Property() now work when the matcher argument is a pointer
passed by reference.
* Regular expression matchers on all platforms.
* Added GCC 4.0 support for Google Mock Doctor.
* Added gmock_all_test.cc for compiling most Google Mock tests
in a single file.
* Significantly cleaned up compiler warnings.
* Bug fixes, better test coverage, and implementation clean-ups.
Potentially breaking changes:
* Custom matchers defined using MatcherInterface or MakePolymorphicMatcher()
need to be updated after upgrading to Google Mock 1.5.0; matchers defined
using MATCHER or MATCHER_P* aren't affected.
* Dropped support for 'make install'.
Changes for 1.4.0 (we skipped 1.2.* and 1.3.* to match the version of
Google Test):
* Works in more environments: Symbian and minGW, Visual C++ 7.1.
* Lighter weight: comes with our own implementation of TR1 tuple (no
more dependency on Boost!).
* New feature: --gmock_catch_leaked_mocks for detecting leaked mocks.
* New feature: ACTION_TEMPLATE for defining templatized actions.
* New feature: the .After() clause for specifying expectation order.
* New feature: the .With() clause for for specifying inter-argument
constraints.
* New feature: actions ReturnArg<k>(), ReturnNew<T>(...), and
DeleteArg<k>().
* New feature: matchers Key(), Pair(), Args<...>(), AllArgs(), IsNull(),
and Contains().
* New feature: utility class MockFunction<F>, useful for checkpoints, etc.
* New feature: functions Value(x, m) and SafeMatcherCast<T>(m).
* New feature: copying a mock object is rejected at compile time.
* New feature: a script for fusing all Google Mock and Google Test
source files for easy deployment.
* Improved the Google Mock doctor to diagnose more diseases.
* Improved the Google Mock generator script.
* Compatibility fixes for Mac OS X and gcc.
* Bug fixes and implementation clean-ups.
Changes for 1.1.0:
* New feature: ability to use Google Mock with any testing framework.
* New feature: macros for easily defining new matchers
* New feature: macros for easily defining new actions.
* New feature: more container matchers.
* New feature: actions for accessing function arguments and throwing
exceptions.
* Improved the Google Mock doctor script for diagnosing compiler errors.
* Bug fixes and implementation clean-ups.
Changes for 1.0.0:
* Initial Open Source release of Google Mock

View File

@ -1,194 +0,0 @@
########################################################################
# CMake build script for Google Mock.
#
# To run the tests for Google Mock itself on Linux, use 'make test' or
# ctest. You can select which tests to run using 'ctest -R regex'.
# For more options, run 'ctest --help'.
# BUILD_SHARED_LIBS is a standard CMake variable, but we declare it here to
# make it prominent in the GUI.
option(BUILD_SHARED_LIBS "Build shared libraries (DLLs)." OFF)
option(gmock_build_tests "Build all of Google Mock's own tests." OFF)
# A directory to find Google Test sources.
if (EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/gtest/CMakeLists.txt")
set(gtest_dir gtest)
else()
set(gtest_dir ../googletest)
endif()
# Defines pre_project_set_up_hermetic_build() and set_up_hermetic_build().
include("${gtest_dir}/cmake/hermetic_build.cmake" OPTIONAL)
if (COMMAND pre_project_set_up_hermetic_build)
# Google Test also calls hermetic setup functions from add_subdirectory,
# although its changes will not affect things at the current scope.
pre_project_set_up_hermetic_build()
endif()
########################################################################
#
# Project-wide settings
# Name of the project.
#
# CMake files in this project can refer to the root source directory
# as ${gmock_SOURCE_DIR} and to the root binary directory as
# ${gmock_BINARY_DIR}.
# Language "C" is required for find_package(Threads).
project(gmock CXX C)
cmake_minimum_required(VERSION 2.6.2)
if (COMMAND set_up_hermetic_build)
set_up_hermetic_build()
endif()
# Instructs CMake to process Google Test's CMakeLists.txt and add its
# targets to the current scope. We are placing Google Test's binary
# directory in a subdirectory of our own as VC compilation may break
# if they are the same (the default).
add_subdirectory("${gtest_dir}" "${gmock_BINARY_DIR}/gtest")
# Although Google Test's CMakeLists.txt calls this function, the
# changes there don't affect the current scope. Therefore we have to
# call it again here.
config_compiler_and_linker() # from ${gtest_dir}/cmake/internal_utils.cmake
# Adds Google Mock's and Google Test's header directories to the search path.
include_directories("${gmock_SOURCE_DIR}/include"
"${gmock_SOURCE_DIR}"
"${gtest_SOURCE_DIR}/include"
# This directory is needed to build directly from Google
# Test sources.
"${gtest_SOURCE_DIR}")
# Summary of tuple support for Microsoft Visual Studio:
# Compiler version(MS) version(cmake) Support
# ---------- ----------- -------------- -----------------------------
# <= VS 2010 <= 10 <= 1600 Use Google Tests's own tuple.
# VS 2012 11 1700 std::tr1::tuple + _VARIADIC_MAX=10
# VS 2013 12 1800 std::tr1::tuple
if (MSVC AND MSVC_VERSION EQUAL 1700)
add_definitions(/D _VARIADIC_MAX=10)
endif()
########################################################################
#
# Defines the gmock & gmock_main libraries. User tests should link
# with one of them.
# Google Mock libraries. We build them using more strict warnings than what
# are used for other targets, to ensure that Google Mock can be compiled by
# a user aggressive about warnings.
cxx_library(gmock
"${cxx_strict}"
"${gtest_dir}/src/gtest-all.cc"
src/gmock-all.cc)
cxx_library(gmock_main
"${cxx_strict}"
"${gtest_dir}/src/gtest-all.cc"
src/gmock-all.cc
src/gmock_main.cc)
# If the CMake version supports it, attach header directory information
# to the targets for when we are part of a parent build (ie being pulled
# in via add_subdirectory() rather than being a standalone build).
if (DEFINED CMAKE_VERSION AND NOT "${CMAKE_VERSION}" VERSION_LESS "2.8.11")
target_include_directories(gmock INTERFACE "${gmock_SOURCE_DIR}/include")
target_include_directories(gmock_main INTERFACE "${gmock_SOURCE_DIR}/include")
endif()
########################################################################
#
# Google Mock's own tests.
#
# You can skip this section if you aren't interested in testing
# Google Mock itself.
#
# The tests are not built by default. To build them, set the
# gmock_build_tests option to ON. You can do it by running ccmake
# or specifying the -Dgmock_build_tests=ON flag when running cmake.
if (gmock_build_tests)
# This must be set in the root directory for the tests to be run by
# 'make test' or ctest.
enable_testing()
############################################################
# C++ tests built with standard compiler flags.
cxx_test(gmock-actions_test gmock_main)
cxx_test(gmock-cardinalities_test gmock_main)
cxx_test(gmock_ex_test gmock_main)
cxx_test(gmock-generated-actions_test gmock_main)
cxx_test(gmock-generated-function-mockers_test gmock_main)
cxx_test(gmock-generated-internal-utils_test gmock_main)
cxx_test(gmock-generated-matchers_test gmock_main)
cxx_test(gmock-internal-utils_test gmock_main)
cxx_test(gmock-matchers_test gmock_main)
cxx_test(gmock-more-actions_test gmock_main)
cxx_test(gmock-nice-strict_test gmock_main)
cxx_test(gmock-port_test gmock_main)
cxx_test(gmock-spec-builders_test gmock_main)
cxx_test(gmock_link_test gmock_main test/gmock_link2_test.cc)
cxx_test(gmock_test gmock_main)
if (CMAKE_USE_PTHREADS_INIT)
cxx_test(gmock_stress_test gmock)
endif()
# gmock_all_test is commented to save time building and running tests.
# Uncomment if necessary.
# cxx_test(gmock_all_test gmock_main)
############################################################
# C++ tests built with non-standard compiler flags.
cxx_library(gmock_main_no_exception "${cxx_no_exception}"
"${gtest_dir}/src/gtest-all.cc" src/gmock-all.cc src/gmock_main.cc)
cxx_library(gmock_main_no_rtti "${cxx_no_rtti}"
"${gtest_dir}/src/gtest-all.cc" src/gmock-all.cc src/gmock_main.cc)
if (NOT MSVC OR MSVC_VERSION LESS 1600) # 1600 is Visual Studio 2010.
# Visual Studio 2010, 2012, and 2013 define symbols in std::tr1 that
# conflict with our own definitions. Therefore using our own tuple does not
# work on those compilers.
cxx_library(gmock_main_use_own_tuple "${cxx_use_own_tuple}"
"${gtest_dir}/src/gtest-all.cc" src/gmock-all.cc src/gmock_main.cc)
cxx_test_with_flags(gmock_use_own_tuple_test "${cxx_use_own_tuple}"
gmock_main_use_own_tuple test/gmock-spec-builders_test.cc)
endif()
cxx_test_with_flags(gmock-more-actions_no_exception_test "${cxx_no_exception}"
gmock_main_no_exception test/gmock-more-actions_test.cc)
cxx_test_with_flags(gmock_no_rtti_test "${cxx_no_rtti}"
gmock_main_no_rtti test/gmock-spec-builders_test.cc)
cxx_shared_library(shared_gmock_main "${cxx_default}"
"${gtest_dir}/src/gtest-all.cc" src/gmock-all.cc src/gmock_main.cc)
# Tests that a binary can be built with Google Mock as a shared library. On
# some system configurations, it may not possible to run the binary without
# knowing more details about the system configurations. We do not try to run
# this binary. To get a more robust shared library coverage, configure with
# -DBUILD_SHARED_LIBS=ON.
cxx_executable_with_flags(shared_gmock_test_ "${cxx_default}"
shared_gmock_main test/gmock-spec-builders_test.cc)
set_target_properties(shared_gmock_test_
PROPERTIES
COMPILE_DEFINITIONS "GTEST_LINKED_AS_SHARED_LIBRARY=1")
############################################################
# Python tests.
cxx_executable(gmock_leak_test_ test gmock_main)
py_test(gmock_leak_test)
cxx_executable(gmock_output_test_ test gmock)
py_test(gmock_output_test)
endif()

View File

@ -1,40 +0,0 @@
# This file contains a list of people who've made non-trivial
# contribution to the Google C++ Mocking Framework project. People
# who commit code to the project are encouraged to add their names
# here. Please keep the list sorted by first names.
Benoit Sigoure <tsuna@google.com>
Bogdan Piloca <boo@google.com>
Chandler Carruth <chandlerc@google.com>
Dave MacLachlan <dmaclach@gmail.com>
David Anderson <danderson@google.com>
Dean Sturtevant
Gene Volovich <gv@cite.com>
Hal Burch <gmock@hburch.com>
Jeffrey Yasskin <jyasskin@google.com>
Jim Keller <jimkeller@google.com>
Joe Walnes <joe@truemesh.com>
Jon Wray <jwray@google.com>
Keir Mierle <mierle@gmail.com>
Keith Ray <keith.ray@gmail.com>
Kostya Serebryany <kcc@google.com>
Lev Makhlis
Manuel Klimek <klimek@google.com>
Mario Tanev <radix@google.com>
Mark Paskin
Markus Heule <markus.heule@gmail.com>
Matthew Simmons <simmonmt@acm.org>
Mike Bland <mbland@google.com>
Neal Norwitz <nnorwitz@gmail.com>
Nermin Ozkiranartli <nermin@google.com>
Owen Carlsen <ocarlsen@google.com>
Paneendra Ba <paneendra@google.com>
Paul Menage <menage@google.com>
Piotr Kaminski <piotrk@google.com>
Russ Rufer <russ@pentad.com>
Sverre Sundsdal <sundsdal@gmail.com>
Takeshi Yoshino <tyoshino@google.com>
Vadim Berman <vadimb@google.com>
Vlad Losev <vladl@google.com>
Wolfgang Klier <wklier@google.com>
Zhanyong Wan <wan@google.com>

View File

@ -1,224 +0,0 @@
# Automake file
# Nonstandard package files for distribution.
EXTRA_DIST = LICENSE
# We may need to build our internally packaged gtest. If so, it will be
# included in the 'subdirs' variable.
SUBDIRS = $(subdirs)
# This is generated by the configure script, so clean it for distribution.
DISTCLEANFILES = scripts/gmock-config
# We define the global AM_CPPFLAGS as everything we compile includes from these
# directories.
AM_CPPFLAGS = $(GTEST_CPPFLAGS) -I$(srcdir)/include
# Modifies compiler and linker flags for pthreads compatibility.
if HAVE_PTHREADS
AM_CXXFLAGS = @PTHREAD_CFLAGS@ -DGTEST_HAS_PTHREAD=1
AM_LIBS = @PTHREAD_LIBS@
endif
# Build rules for libraries.
lib_LTLIBRARIES = lib/libgmock.la lib/libgmock_main.la
lib_libgmock_la_SOURCES = src/gmock-all.cc
pkginclude_HEADERS = \
include/gmock/gmock-actions.h \
include/gmock/gmock-cardinalities.h \
include/gmock/gmock-generated-actions.h \
include/gmock/gmock-generated-function-mockers.h \
include/gmock/gmock-generated-matchers.h \
include/gmock/gmock-generated-nice-strict.h \
include/gmock/gmock-matchers.h \
include/gmock/gmock-more-actions.h \
include/gmock/gmock-more-matchers.h \
include/gmock/gmock-spec-builders.h \
include/gmock/gmock.h
pkginclude_internaldir = $(pkgincludedir)/internal
pkginclude_internal_HEADERS = \
include/gmock/internal/gmock-generated-internal-utils.h \
include/gmock/internal/gmock-internal-utils.h \
include/gmock/internal/gmock-port.h \
include/gmock/internal/custom/gmock-generated-actions.h \
include/gmock/internal/custom/gmock-matchers.h \
include/gmock/internal/custom/gmock-port.h
lib_libgmock_main_la_SOURCES = src/gmock_main.cc
lib_libgmock_main_la_LIBADD = lib/libgmock.la
# Build rules for tests. Automake's naming for some of these variables isn't
# terribly obvious, so this is a brief reference:
#
# TESTS -- Programs run automatically by "make check"
# check_PROGRAMS -- Programs built by "make check" but not necessarily run
TESTS=
check_PROGRAMS=
AM_LDFLAGS = $(GTEST_LDFLAGS)
# This exercises all major components of Google Mock. It also
# verifies that libgmock works.
TESTS += test/gmock-spec-builders_test
check_PROGRAMS += test/gmock-spec-builders_test
test_gmock_spec_builders_test_SOURCES = test/gmock-spec-builders_test.cc
test_gmock_spec_builders_test_LDADD = $(GTEST_LIBS) lib/libgmock.la
# This tests using Google Mock in multiple translation units. It also
# verifies that libgmock_main and libgmock work.
TESTS += test/gmock_link_test
check_PROGRAMS += test/gmock_link_test
test_gmock_link_test_SOURCES = \
test/gmock_link2_test.cc \
test/gmock_link_test.cc \
test/gmock_link_test.h
test_gmock_link_test_LDADD = $(GTEST_LIBS) lib/libgmock_main.la lib/libgmock.la
if HAVE_PYTHON
# Tests that fused gmock files compile and work.
TESTS += test/gmock_fused_test
check_PROGRAMS += test/gmock_fused_test
test_gmock_fused_test_SOURCES = \
fused-src/gmock-gtest-all.cc \
fused-src/gmock/gmock.h \
fused-src/gmock_main.cc \
fused-src/gtest/gtest.h \
test/gmock_test.cc
test_gmock_fused_test_CPPFLAGS = -I"$(srcdir)/fused-src"
endif
# Google Mock source files that we don't compile directly.
GMOCK_SOURCE_INGLUDES = \
src/gmock-cardinalities.cc \
src/gmock-internal-utils.cc \
src/gmock-matchers.cc \
src/gmock-spec-builders.cc \
src/gmock.cc
EXTRA_DIST += $(GMOCK_SOURCE_INGLUDES)
# C++ tests that we don't compile using autotools.
EXTRA_DIST += \
test/gmock-actions_test.cc \
test/gmock_all_test.cc \
test/gmock-cardinalities_test.cc \
test/gmock_ex_test.cc \
test/gmock-generated-actions_test.cc \
test/gmock-generated-function-mockers_test.cc \
test/gmock-generated-internal-utils_test.cc \
test/gmock-generated-matchers_test.cc \
test/gmock-internal-utils_test.cc \
test/gmock-matchers_test.cc \
test/gmock-more-actions_test.cc \
test/gmock-nice-strict_test.cc \
test/gmock-port_test.cc \
test/gmock_stress_test.cc
# Python tests, which we don't run using autotools.
EXTRA_DIST += \
test/gmock_leak_test.py \
test/gmock_leak_test_.cc \
test/gmock_output_test.py \
test/gmock_output_test_.cc \
test/gmock_output_test_golden.txt \
test/gmock_test_utils.py
# Nonstandard package files for distribution.
EXTRA_DIST += \
CHANGES \
CONTRIBUTORS \
make/Makefile
# Pump scripts for generating Google Mock headers.
# TODO(chandlerc@google.com): automate the generation of *.h from *.h.pump.
EXTRA_DIST += \
include/gmock/gmock-generated-actions.h.pump \
include/gmock/gmock-generated-function-mockers.h.pump \
include/gmock/gmock-generated-matchers.h.pump \
include/gmock/gmock-generated-nice-strict.h.pump \
include/gmock/internal/gmock-generated-internal-utils.h.pump \
include/gmock/internal/custom/gmock-generated-actions.h.pump
# Script for fusing Google Mock and Google Test source files.
EXTRA_DIST += scripts/fuse_gmock_files.py
# The Google Mock Generator tool from the cppclean project.
EXTRA_DIST += \
scripts/generator/LICENSE \
scripts/generator/README \
scripts/generator/README.cppclean \
scripts/generator/cpp/__init__.py \
scripts/generator/cpp/ast.py \
scripts/generator/cpp/gmock_class.py \
scripts/generator/cpp/keywords.py \
scripts/generator/cpp/tokenize.py \
scripts/generator/cpp/utils.py \
scripts/generator/gmock_gen.py
# Script for diagnosing compiler errors in programs that use Google
# Mock.
EXTRA_DIST += scripts/gmock_doctor.py
# CMake scripts.
EXTRA_DIST += \
CMakeLists.txt
# Microsoft Visual Studio 2005 projects.
EXTRA_DIST += \
msvc/2005/gmock.sln \
msvc/2005/gmock.vcproj \
msvc/2005/gmock_config.vsprops \
msvc/2005/gmock_main.vcproj \
msvc/2005/gmock_test.vcproj
# Microsoft Visual Studio 2010 projects.
EXTRA_DIST += \
msvc/2010/gmock.sln \
msvc/2010/gmock.vcxproj \
msvc/2010/gmock_config.props \
msvc/2010/gmock_main.vcxproj \
msvc/2010/gmock_test.vcxproj
if HAVE_PYTHON
# gmock_test.cc does not really depend on files generated by the
# fused-gmock-internal rule. However, gmock_test.o does, and it is
# important to include test/gmock_test.cc as part of this rule in order to
# prevent compiling gmock_test.o until all dependent files have been
# generated.
$(test_gmock_fused_test_SOURCES): fused-gmock-internal
# TODO(vladl@google.com): Find a way to add Google Tests's sources here.
fused-gmock-internal: $(pkginclude_HEADERS) $(pkginclude_internal_HEADERS) \
$(lib_libgmock_la_SOURCES) $(GMOCK_SOURCE_INGLUDES) \
$(lib_libgmock_main_la_SOURCES) \
scripts/fuse_gmock_files.py
mkdir -p "$(srcdir)/fused-src"
chmod -R u+w "$(srcdir)/fused-src"
rm -f "$(srcdir)/fused-src/gtest/gtest.h"
rm -f "$(srcdir)/fused-src/gmock/gmock.h"
rm -f "$(srcdir)/fused-src/gmock-gtest-all.cc"
"$(srcdir)/scripts/fuse_gmock_files.py" "$(srcdir)/fused-src"
cp -f "$(srcdir)/src/gmock_main.cc" "$(srcdir)/fused-src"
maintainer-clean-local:
rm -rf "$(srcdir)/fused-src"
endif
# Death tests may produce core dumps in the build directory. In case
# this happens, clean them to keep distcleancheck happy.
CLEANFILES = core
# Disables 'make install' as installing a compiled version of Google
# Mock can lead to undefined behavior due to violation of the
# One-Definition Rule.
install-exec-local:
echo "'make install' is dangerous and not supported. Instead, see README for how to integrate Google Mock into your build system."
false
install-data-local:
echo "'make install' is dangerous and not supported. Instead, see README for how to integrate Google Mock into your build system."
false

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@ -1,333 +0,0 @@
## Google Mock ##
The Google C++ mocking framework.
### Overview ###
Google's framework for writing and using C++ mock classes.
It can help you derive better designs of your system and write better tests.
It is inspired by:
* [jMock](http://www.jmock.org/),
* [EasyMock](http://www.easymock.org/), and
* [Hamcrest](http://code.google.com/p/hamcrest/),
and designed with C++'s specifics in mind.
Google mock:
* lets you create mock classes trivially using simple macros.
* supports a rich set of matchers and actions.
* handles unordered, partially ordered, or completely ordered expectations.
* is extensible by users.
We hope you find it useful!
### Features ###
* Provides a declarative syntax for defining mocks.
* Can easily define partial (hybrid) mocks, which are a cross of real
and mock objects.
* Handles functions of arbitrary types and overloaded functions.
* Comes with a rich set of matchers for validating function arguments.
* Uses an intuitive syntax for controlling the behavior of a mock.
* Does automatic verification of expectations (no record-and-replay needed).
* Allows arbitrary (partial) ordering constraints on
function calls to be expressed,.
* Lets a user extend it by defining new matchers and actions.
* Does not use exceptions.
* Is easy to learn and use.
Please see the project page above for more information as well as the
mailing list for questions, discussions, and development. There is
also an IRC channel on OFTC (irc.oftc.net) #gtest available. Please
join us!
Please note that code under [scripts/generator](scripts/generator/) is
from [cppclean](http://code.google.com/p/cppclean/) and released under
the Apache License, which is different from Google Mock's license.
## Getting Started ##
If you are new to the project, we suggest that you read the user
documentation in the following order:
* Learn the [basics](../googletest/docs/Primer.md) of
Google Test, if you choose to use Google Mock with it (recommended).
* Read [Google Mock for Dummies](docs/ForDummies.md).
* Read the instructions below on how to build Google Mock.
You can also watch Zhanyong's [talk](http://www.youtube.com/watch?v=sYpCyLI47rM) on Google Mock's usage and implementation.
Once you understand the basics, check out the rest of the docs:
* [CheatSheet](docs/CheatSheet.md) - all the commonly used stuff
at a glance.
* [CookBook](docs/CookBook.md) - recipes for getting things done,
including advanced techniques.
If you need help, please check the
[KnownIssues](docs/KnownIssues.md) and
[FrequentlyAskedQuestions](docs/FrequentlyAskedQuestions.md) before
posting a question on the
[discussion group](http://groups.google.com/group/googlemock).
### Using Google Mock Without Google Test ###
Google Mock is not a testing framework itself. Instead, it needs a
testing framework for writing tests. Google Mock works seamlessly
with [Google Test](http://code.google.com/p/googletest/), but
you can also use it with [any C++ testing framework](googlemock/ForDummies.md#Using_Google_Mock_with_Any_Testing_Framework).
### Requirements for End Users ###
Google Mock is implemented on top of [Google Test](
http://github.com/google/googletest/), and depends on it.
You must use the bundled version of Google Test when using Google Mock.
You can also easily configure Google Mock to work with another testing
framework, although it will still need Google Test. Please read
["Using_Google_Mock_with_Any_Testing_Framework"](
docs/ForDummies.md#Using_Google_Mock_with_Any_Testing_Framework)
for instructions.
Google Mock depends on advanced C++ features and thus requires a more
modern compiler. The following are needed to use Google Mock:
#### Linux Requirements ####
* GNU-compatible Make or "gmake"
* POSIX-standard shell
* POSIX(-2) Regular Expressions (regex.h)
* C++98-standard-compliant compiler (e.g. GCC 3.4 or newer)
#### Windows Requirements ####
* Microsoft Visual C++ 8.0 SP1 or newer
#### Mac OS X Requirements ####
* Mac OS X 10.4 Tiger or newer
* Developer Tools Installed
### Requirements for Contributors ###
We welcome patches. If you plan to contribute a patch, you need to
build Google Mock and its tests, which has further requirements:
* Automake version 1.9 or newer
* Autoconf version 2.59 or newer
* Libtool / Libtoolize
* Python version 2.3 or newer (for running some of the tests and
re-generating certain source files from templates)
### Building Google Mock ###
#### Preparing to Build (Unix only) ####
If you are using a Unix system and plan to use the GNU Autotools build
system to build Google Mock (described below), you'll need to
configure it now.
To prepare the Autotools build system:
cd googlemock
autoreconf -fvi
To build Google Mock and your tests that use it, you need to tell your
build system where to find its headers and source files. The exact
way to do it depends on which build system you use, and is usually
straightforward.
This section shows how you can integrate Google Mock into your
existing build system.
Suppose you put Google Mock in directory `${GMOCK_DIR}` and Google Test
in `${GTEST_DIR}` (the latter is `${GMOCK_DIR}/gtest` by default). To
build Google Mock, create a library build target (or a project as
called by Visual Studio and Xcode) to compile
${GTEST_DIR}/src/gtest-all.cc and ${GMOCK_DIR}/src/gmock-all.cc
with
${GTEST_DIR}/include and ${GMOCK_DIR}/include
in the system header search path, and
${GTEST_DIR} and ${GMOCK_DIR}
in the normal header search path. Assuming a Linux-like system and gcc,
something like the following will do:
g++ -isystem ${GTEST_DIR}/include -I${GTEST_DIR} \
-isystem ${GMOCK_DIR}/include -I${GMOCK_DIR} \
-pthread -c ${GTEST_DIR}/src/gtest-all.cc
g++ -isystem ${GTEST_DIR}/include -I${GTEST_DIR} \
-isystem ${GMOCK_DIR}/include -I${GMOCK_DIR} \
-pthread -c ${GMOCK_DIR}/src/gmock-all.cc
ar -rv libgmock.a gtest-all.o gmock-all.o
(We need -pthread as Google Test and Google Mock use threads.)
Next, you should compile your test source file with
${GTEST\_DIR}/include and ${GMOCK\_DIR}/include in the header search
path, and link it with gmock and any other necessary libraries:
g++ -isystem ${GTEST_DIR}/include -isystem ${GMOCK_DIR}/include \
-pthread path/to/your_test.cc libgmock.a -o your_test
As an example, the make/ directory contains a Makefile that you can
use to build Google Mock on systems where GNU make is available
(e.g. Linux, Mac OS X, and Cygwin). It doesn't try to build Google
Mock's own tests. Instead, it just builds the Google Mock library and
a sample test. You can use it as a starting point for your own build
script.
If the default settings are correct for your environment, the
following commands should succeed:
cd ${GMOCK_DIR}/make
make
./gmock_test
If you see errors, try to tweak the contents of
[make/Makefile](make/Makefile) to make them go away.
### Windows ###
The msvc/2005 directory contains VC++ 2005 projects and the msvc/2010
directory contains VC++ 2010 projects for building Google Mock and
selected tests.
Change to the appropriate directory and run "msbuild gmock.sln" to
build the library and tests (or open the gmock.sln in the MSVC IDE).
If you want to create your own project to use with Google Mock, you'll
have to configure it to use the `gmock_config` propety sheet. For that:
* Open the Property Manager window (View | Other Windows | Property Manager)
* Right-click on your project and select "Add Existing Property Sheet..."
* Navigate to `gmock_config.vsprops` or `gmock_config.props` and select it.
* In Project Properties | Configuration Properties | General | Additional
Include Directories, type <path to Google Mock>/include.
### Tweaking Google Mock ###
Google Mock can be used in diverse environments. The default
configuration may not work (or may not work well) out of the box in
some environments. However, you can easily tweak Google Mock by
defining control macros on the compiler command line. Generally,
these macros are named like `GTEST_XYZ` and you define them to either 1
or 0 to enable or disable a certain feature.
We list the most frequently used macros below. For a complete list,
see file [${GTEST\_DIR}/include/gtest/internal/gtest-port.h](
../googletest/include/gtest/internal/gtest-port.h).
### Choosing a TR1 Tuple Library ###
Google Mock uses the C++ Technical Report 1 (TR1) tuple library
heavily. Unfortunately TR1 tuple is not yet widely available with all
compilers. The good news is that Google Test 1.4.0+ implements a
subset of TR1 tuple that's enough for Google Mock's need. Google Mock
will automatically use that implementation when the compiler doesn't
provide TR1 tuple.
Usually you don't need to care about which tuple library Google Test
and Google Mock use. However, if your project already uses TR1 tuple,
you need to tell Google Test and Google Mock to use the same TR1 tuple
library the rest of your project uses, or the two tuple
implementations will clash. To do that, add
-DGTEST_USE_OWN_TR1_TUPLE=0
to the compiler flags while compiling Google Test, Google Mock, and
your tests. If you want to force Google Test and Google Mock to use
their own tuple library, just add
-DGTEST_USE_OWN_TR1_TUPLE=1
to the compiler flags instead.
If you want to use Boost's TR1 tuple library with Google Mock, please
refer to the Boost website (http://www.boost.org/) for how to obtain
it and set it up.
### As a Shared Library (DLL) ###
Google Mock is compact, so most users can build and link it as a static
library for the simplicity. Google Mock can be used as a DLL, but the
same DLL must contain Google Test as well. See
[Google Test's README][gtest_readme]
for instructions on how to set up necessary compiler settings.
### Tweaking Google Mock ###
Most of Google Test's control macros apply to Google Mock as well.
Please see [Google Test's README][gtest_readme] for how to tweak them.
### Upgrading from an Earlier Version ###
We strive to keep Google Mock releases backward compatible.
Sometimes, though, we have to make some breaking changes for the
users' long-term benefits. This section describes what you'll need to
do if you are upgrading from an earlier version of Google Mock.
#### Upgrading from 1.1.0 or Earlier ####
You may need to explicitly enable or disable Google Test's own TR1
tuple library. See the instructions in section "[Choosing a TR1 Tuple
Library](../googletest/#choosing-a-tr1-tuple-library)".
#### Upgrading from 1.4.0 or Earlier ####
On platforms where the pthread library is available, Google Test and
Google Mock use it in order to be thread-safe. For this to work, you
may need to tweak your compiler and/or linker flags. Please see the
"[Multi-threaded Tests](../googletest#multi-threaded-tests
)" section in file Google Test's README for what you may need to do.
If you have custom matchers defined using `MatcherInterface` or
`MakePolymorphicMatcher()`, you'll need to update their definitions to
use the new matcher API (
[monomorphic](http://code.google.com/p/googlemock/wiki/CookBook#Writing_New_Monomorphic_Matchers),
[polymorphic](http://code.google.com/p/googlemock/wiki/CookBook#Writing_New_Polymorphic_Matchers)).
Matchers defined using `MATCHER()` or `MATCHER_P*()` aren't affected.
### Developing Google Mock ###
This section discusses how to make your own changes to Google Mock.
#### Testing Google Mock Itself ####
To make sure your changes work as intended and don't break existing
functionality, you'll want to compile and run Google Test's own tests.
For that you'll need Autotools. First, make sure you have followed
the instructions above to configure Google Mock.
Then, create a build output directory and enter it. Next,
${GMOCK_DIR}/configure # try --help for more info
Once you have successfully configured Google Mock, the build steps are
standard for GNU-style OSS packages.
make # Standard makefile following GNU conventions
make check # Builds and runs all tests - all should pass.
Note that when building your project against Google Mock, you are building
against Google Test as well. There is no need to configure Google Test
separately.
#### Contributing a Patch ####
We welcome patches.
Please read the [Developer's Guide](docs/DevGuide.md)
for how you can contribute. In particular, make sure you have signed
the Contributor License Agreement, or we won't be able to accept the
patch.
Happy testing!
[gtest_readme]: ../googletest/README.md "googletest"

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@ -1,146 +0,0 @@
m4_include(../googletest/m4/acx_pthread.m4)
AC_INIT([Google C++ Mocking Framework],
[1.7.0],
[googlemock@googlegroups.com],
[gmock])
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AC_ARG_WITH([gtest],
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AC_ARG_ENABLE([external-gtest],
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[AC_MSG_ERROR([dnl
Support for GoogleTest was explicitly disabled. Currently GoogleMock has a hard
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GoogleMock to use any installed version and fall back upon its internal
version.])])
# Setup various GTEST variables. TODO(chandlerc@google.com): When these are
# used below, they should be used such that any pre-existing values always
# trump values we set them to, so that they can be used to selectively override
# details of the detection process.
AC_ARG_VAR([GTEST_CONFIG],
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AC_ARG_VAR([GTEST_CPPFLAGS],
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AC_ARG_VAR([GTEST_CXXFLAGS],
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AC_ARG_VAR([GTEST_LDFLAGS],
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AC_ARG_VAR([GTEST_LIBS],
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AC_OUTPUT

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# Defining a Mock Class #
## Mocking a Normal Class ##
Given
```
class Foo {
...
virtual ~Foo();
virtual int GetSize() const = 0;
virtual string Describe(const char* name) = 0;
virtual string Describe(int type) = 0;
virtual bool Process(Bar elem, int count) = 0;
};
```
(note that `~Foo()` **must** be virtual) we can define its mock as
```
#include "gmock/gmock.h"
class MockFoo : public Foo {
MOCK_CONST_METHOD0(GetSize, int());
MOCK_METHOD1(Describe, string(const char* name));
MOCK_METHOD1(Describe, string(int type));
MOCK_METHOD2(Process, bool(Bar elem, int count));
};
```
To create a "nice" mock object which ignores all uninteresting calls,
or a "strict" mock object, which treats them as failures:
```
NiceMock<MockFoo> nice_foo; // The type is a subclass of MockFoo.
StrictMock<MockFoo> strict_foo; // The type is a subclass of MockFoo.
```
## Mocking a Class Template ##
To mock
```
template <typename Elem>
class StackInterface {
public:
...
virtual ~StackInterface();
virtual int GetSize() const = 0;
virtual void Push(const Elem& x) = 0;
};
```
(note that `~StackInterface()` **must** be virtual) just append `_T` to the `MOCK_*` macros:
```
template <typename Elem>
class MockStack : public StackInterface<Elem> {
public:
...
MOCK_CONST_METHOD0_T(GetSize, int());
MOCK_METHOD1_T(Push, void(const Elem& x));
};
```
## Specifying Calling Conventions for Mock Functions ##
If your mock function doesn't use the default calling convention, you
can specify it by appending `_WITH_CALLTYPE` to any of the macros
described in the previous two sections and supplying the calling
convention as the first argument to the macro. For example,
```
MOCK_METHOD_1_WITH_CALLTYPE(STDMETHODCALLTYPE, Foo, bool(int n));
MOCK_CONST_METHOD2_WITH_CALLTYPE(STDMETHODCALLTYPE, Bar, int(double x, double y));
```
where `STDMETHODCALLTYPE` is defined by `<objbase.h>` on Windows.
# Using Mocks in Tests #
The typical flow is:
1. Import the Google Mock names you need to use. All Google Mock names are in the `testing` namespace unless they are macros or otherwise noted.
1. Create the mock objects.
1. Optionally, set the default actions of the mock objects.
1. Set your expectations on the mock objects (How will they be called? What wil they do?).
1. Exercise code that uses the mock objects; if necessary, check the result using [Google Test](../../googletest/) assertions.
1. When a mock objects is destructed, Google Mock automatically verifies that all expectations on it have been satisfied.
Here is an example:
```
using ::testing::Return; // #1
TEST(BarTest, DoesThis) {
MockFoo foo; // #2
ON_CALL(foo, GetSize()) // #3
.WillByDefault(Return(1));
// ... other default actions ...
EXPECT_CALL(foo, Describe(5)) // #4
.Times(3)
.WillRepeatedly(Return("Category 5"));
// ... other expectations ...
EXPECT_EQ("good", MyProductionFunction(&foo)); // #5
} // #6
```
# Setting Default Actions #
Google Mock has a **built-in default action** for any function that
returns `void`, `bool`, a numeric value, or a pointer.
To customize the default action for functions with return type `T` globally:
```
using ::testing::DefaultValue;
// Sets the default value to be returned. T must be CopyConstructible.
DefaultValue<T>::Set(value);
// Sets a factory. Will be invoked on demand. T must be MoveConstructible.
// T MakeT();
DefaultValue<T>::SetFactory(&MakeT);
// ... use the mocks ...
// Resets the default value.
DefaultValue<T>::Clear();
```
To customize the default action for a particular method, use `ON_CALL()`:
```
ON_CALL(mock_object, method(matchers))
.With(multi_argument_matcher) ?
.WillByDefault(action);
```
# Setting Expectations #
`EXPECT_CALL()` sets **expectations** on a mock method (How will it be
called? What will it do?):
```
EXPECT_CALL(mock_object, method(matchers))
.With(multi_argument_matcher) ?
.Times(cardinality) ?
.InSequence(sequences) *
.After(expectations) *
.WillOnce(action) *
.WillRepeatedly(action) ?
.RetiresOnSaturation(); ?
```
If `Times()` is omitted, the cardinality is assumed to be:
* `Times(1)` when there is neither `WillOnce()` nor `WillRepeatedly()`;
* `Times(n)` when there are `n WillOnce()`s but no `WillRepeatedly()`, where `n` >= 1; or
* `Times(AtLeast(n))` when there are `n WillOnce()`s and a `WillRepeatedly()`, where `n` >= 0.
A method with no `EXPECT_CALL()` is free to be invoked _any number of times_, and the default action will be taken each time.
# Matchers #
A **matcher** matches a _single_ argument. You can use it inside
`ON_CALL()` or `EXPECT_CALL()`, or use it to validate a value
directly:
| `EXPECT_THAT(value, matcher)` | Asserts that `value` matches `matcher`. |
|:------------------------------|:----------------------------------------|
| `ASSERT_THAT(value, matcher)` | The same as `EXPECT_THAT(value, matcher)`, except that it generates a **fatal** failure. |
Built-in matchers (where `argument` is the function argument) are
divided into several categories:
## Wildcard ##
|`_`|`argument` can be any value of the correct type.|
|:--|:-----------------------------------------------|
|`A<type>()` or `An<type>()`|`argument` can be any value of type `type`. |
## Generic Comparison ##
|`Eq(value)` or `value`|`argument == value`|
|:---------------------|:------------------|
|`Ge(value)` |`argument >= value`|
|`Gt(value)` |`argument > value` |
|`Le(value)` |`argument <= value`|
|`Lt(value)` |`argument < value` |
|`Ne(value)` |`argument != value`|
|`IsNull()` |`argument` is a `NULL` pointer (raw or smart).|
|`NotNull()` |`argument` is a non-null pointer (raw or smart).|
|`Ref(variable)` |`argument` is a reference to `variable`.|
|`TypedEq<type>(value)`|`argument` has type `type` and is equal to `value`. You may need to use this instead of `Eq(value)` when the mock function is overloaded.|
Except `Ref()`, these matchers make a _copy_ of `value` in case it's
modified or destructed later. If the compiler complains that `value`
doesn't have a public copy constructor, try wrap it in `ByRef()`,
e.g. `Eq(ByRef(non_copyable_value))`. If you do that, make sure
`non_copyable_value` is not changed afterwards, or the meaning of your
matcher will be changed.
## Floating-Point Matchers ##
|`DoubleEq(a_double)`|`argument` is a `double` value approximately equal to `a_double`, treating two NaNs as unequal.|
|:-------------------|:----------------------------------------------------------------------------------------------|
|`FloatEq(a_float)` |`argument` is a `float` value approximately equal to `a_float`, treating two NaNs as unequal. |
|`NanSensitiveDoubleEq(a_double)`|`argument` is a `double` value approximately equal to `a_double`, treating two NaNs as equal. |
|`NanSensitiveFloatEq(a_float)`|`argument` is a `float` value approximately equal to `a_float`, treating two NaNs as equal. |
The above matchers use ULP-based comparison (the same as used in
[Google Test](../../googletest/)). They
automatically pick a reasonable error bound based on the absolute
value of the expected value. `DoubleEq()` and `FloatEq()` conform to
the IEEE standard, which requires comparing two NaNs for equality to
return false. The `NanSensitive*` version instead treats two NaNs as
equal, which is often what a user wants.
|`DoubleNear(a_double, max_abs_error)`|`argument` is a `double` value close to `a_double` (absolute error <= `max_abs_error`), treating two NaNs as unequal.|
|:------------------------------------|:--------------------------------------------------------------------------------------------------------------------|
|`FloatNear(a_float, max_abs_error)` |`argument` is a `float` value close to `a_float` (absolute error <= `max_abs_error`), treating two NaNs as unequal. |
|`NanSensitiveDoubleNear(a_double, max_abs_error)`|`argument` is a `double` value close to `a_double` (absolute error <= `max_abs_error`), treating two NaNs as equal. |
|`NanSensitiveFloatNear(a_float, max_abs_error)`|`argument` is a `float` value close to `a_float` (absolute error <= `max_abs_error`), treating two NaNs as equal. |
## String Matchers ##
The `argument` can be either a C string or a C++ string object:
|`ContainsRegex(string)`|`argument` matches the given regular expression.|
|:----------------------|:-----------------------------------------------|
|`EndsWith(suffix)` |`argument` ends with string `suffix`. |
|`HasSubstr(string)` |`argument` contains `string` as a sub-string. |
|`MatchesRegex(string)` |`argument` matches the given regular expression with the match starting at the first character and ending at the last character.|
|`StartsWith(prefix)` |`argument` starts with string `prefix`. |
|`StrCaseEq(string)` |`argument` is equal to `string`, ignoring case. |
|`StrCaseNe(string)` |`argument` is not equal to `string`, ignoring case.|
|`StrEq(string)` |`argument` is equal to `string`. |
|`StrNe(string)` |`argument` is not equal to `string`. |
`ContainsRegex()` and `MatchesRegex()` use the regular expression
syntax defined
[here](../../googletest/docs/AdvancedGuide.md#regular-expression-syntax).
`StrCaseEq()`, `StrCaseNe()`, `StrEq()`, and `StrNe()` work for wide
strings as well.
## Container Matchers ##
Most STL-style containers support `==`, so you can use
`Eq(expected_container)` or simply `expected_container` to match a
container exactly. If you want to write the elements in-line,
match them more flexibly, or get more informative messages, you can use:
| `ContainerEq(container)` | The same as `Eq(container)` except that the failure message also includes which elements are in one container but not the other. |
|:-------------------------|:---------------------------------------------------------------------------------------------------------------------------------|
| `Contains(e)` | `argument` contains an element that matches `e`, which can be either a value or a matcher. |
| `Each(e)` | `argument` is a container where _every_ element matches `e`, which can be either a value or a matcher. |
| `ElementsAre(e0, e1, ..., en)` | `argument` has `n + 1` elements, where the i-th element matches `ei`, which can be a value or a matcher. 0 to 10 arguments are allowed. |
| `ElementsAreArray({ e0, e1, ..., en })`, `ElementsAreArray(array)`, or `ElementsAreArray(array, count)` | The same as `ElementsAre()` except that the expected element values/matchers come from an initializer list, STL-style container, or C-style array. |
| `IsEmpty()` | `argument` is an empty container (`container.empty()`). |
| `Pointwise(m, container)` | `argument` contains the same number of elements as in `container`, and for all i, (the i-th element in `argument`, the i-th element in `container`) match `m`, which is a matcher on 2-tuples. E.g. `Pointwise(Le(), upper_bounds)` verifies that each element in `argument` doesn't exceed the corresponding element in `upper_bounds`. See more detail below. |
| `SizeIs(m)` | `argument` is a container whose size matches `m`. E.g. `SizeIs(2)` or `SizeIs(Lt(2))`. |
| `UnorderedElementsAre(e0, e1, ..., en)` | `argument` has `n + 1` elements, and under some permutation each element matches an `ei` (for a different `i`), which can be a value or a matcher. 0 to 10 arguments are allowed. |
| `UnorderedElementsAreArray({ e0, e1, ..., en })`, `UnorderedElementsAreArray(array)`, or `UnorderedElementsAreArray(array, count)` | The same as `UnorderedElementsAre()` except that the expected element values/matchers come from an initializer list, STL-style container, or C-style array. |
| `WhenSorted(m)` | When `argument` is sorted using the `<` operator, it matches container matcher `m`. E.g. `WhenSorted(UnorderedElementsAre(1, 2, 3))` verifies that `argument` contains elements `1`, `2`, and `3`, ignoring order. |
| `WhenSortedBy(comparator, m)` | The same as `WhenSorted(m)`, except that the given comparator instead of `<` is used to sort `argument`. E.g. `WhenSortedBy(std::greater<int>(), ElementsAre(3, 2, 1))`. |
Notes:
* These matchers can also match:
1. a native array passed by reference (e.g. in `Foo(const int (&a)[5])`), and
1. an array passed as a pointer and a count (e.g. in `Bar(const T* buffer, int len)` -- see [Multi-argument Matchers](#Multiargument_Matchers.md)).
* The array being matched may be multi-dimensional (i.e. its elements can be arrays).
* `m` in `Pointwise(m, ...)` should be a matcher for `::testing::tuple<T, U>` where `T` and `U` are the element type of the actual container and the expected container, respectively. For example, to compare two `Foo` containers where `Foo` doesn't support `operator==` but has an `Equals()` method, one might write:
```
using ::testing::get;
MATCHER(FooEq, "") {
return get<0>(arg).Equals(get<1>(arg));
}
...
EXPECT_THAT(actual_foos, Pointwise(FooEq(), expected_foos));
```
## Member Matchers ##
|`Field(&class::field, m)`|`argument.field` (or `argument->field` when `argument` is a plain pointer) matches matcher `m`, where `argument` is an object of type _class_.|
|:------------------------|:---------------------------------------------------------------------------------------------------------------------------------------------|
|`Key(e)` |`argument.first` matches `e`, which can be either a value or a matcher. E.g. `Contains(Key(Le(5)))` can verify that a `map` contains a key `<= 5`.|
|`Pair(m1, m2)` |`argument` is an `std::pair` whose `first` field matches `m1` and `second` field matches `m2`. |
|`Property(&class::property, m)`|`argument.property()` (or `argument->property()` when `argument` is a plain pointer) matches matcher `m`, where `argument` is an object of type _class_.|
## Matching the Result of a Function or Functor ##
|`ResultOf(f, m)`|`f(argument)` matches matcher `m`, where `f` is a function or functor.|
|:---------------|:---------------------------------------------------------------------|
## Pointer Matchers ##
|`Pointee(m)`|`argument` (either a smart pointer or a raw pointer) points to a value that matches matcher `m`.|
|:-----------|:-----------------------------------------------------------------------------------------------|
|`WhenDynamicCastTo<T>(m)`| when `argument` is passed through `dynamic_cast<T>()`, it matches matcher `m`. |
## Multiargument Matchers ##
Technically, all matchers match a _single_ value. A "multi-argument"
matcher is just one that matches a _tuple_. The following matchers can
be used to match a tuple `(x, y)`:
|`Eq()`|`x == y`|
|:-----|:-------|
|`Ge()`|`x >= y`|
|`Gt()`|`x > y` |
|`Le()`|`x <= y`|
|`Lt()`|`x < y` |
|`Ne()`|`x != y`|
You can use the following selectors to pick a subset of the arguments
(or reorder them) to participate in the matching:
|`AllArgs(m)`|Equivalent to `m`. Useful as syntactic sugar in `.With(AllArgs(m))`.|
|:-----------|:-------------------------------------------------------------------|
|`Args<N1, N2, ..., Nk>(m)`|The tuple of the `k` selected (using 0-based indices) arguments matches `m`, e.g. `Args<1, 2>(Eq())`.|
## Composite Matchers ##
You can make a matcher from one or more other matchers:
|`AllOf(m1, m2, ..., mn)`|`argument` matches all of the matchers `m1` to `mn`.|
|:-----------------------|:---------------------------------------------------|
|`AnyOf(m1, m2, ..., mn)`|`argument` matches at least one of the matchers `m1` to `mn`.|
|`Not(m)` |`argument` doesn't match matcher `m`. |
## Adapters for Matchers ##
|`MatcherCast<T>(m)`|casts matcher `m` to type `Matcher<T>`.|
|:------------------|:--------------------------------------|
|`SafeMatcherCast<T>(m)`| [safely casts](CookBook.md#casting-matchers) matcher `m` to type `Matcher<T>`. |
|`Truly(predicate)` |`predicate(argument)` returns something considered by C++ to be true, where `predicate` is a function or functor.|
## Matchers as Predicates ##
|`Matches(m)(value)`|evaluates to `true` if `value` matches `m`. You can use `Matches(m)` alone as a unary functor.|
|:------------------|:---------------------------------------------------------------------------------------------|
|`ExplainMatchResult(m, value, result_listener)`|evaluates to `true` if `value` matches `m`, explaining the result to `result_listener`. |
|`Value(value, m)` |evaluates to `true` if `value` matches `m`. |
## Defining Matchers ##
| `MATCHER(IsEven, "") { return (arg % 2) == 0; }` | Defines a matcher `IsEven()` to match an even number. |
|:-------------------------------------------------|:------------------------------------------------------|
| `MATCHER_P(IsDivisibleBy, n, "") { *result_listener << "where the remainder is " << (arg % n); return (arg % n) == 0; }` | Defines a macher `IsDivisibleBy(n)` to match a number divisible by `n`. |
| `MATCHER_P2(IsBetween, a, b, std::string(negation ? "isn't" : "is") + " between " + PrintToString(a) + " and " + PrintToString(b)) { return a <= arg && arg <= b; }` | Defines a matcher `IsBetween(a, b)` to match a value in the range [`a`, `b`]. |
**Notes:**
1. The `MATCHER*` macros cannot be used inside a function or class.
1. The matcher body must be _purely functional_ (i.e. it cannot have any side effect, and the result must not depend on anything other than the value being matched and the matcher parameters).
1. You can use `PrintToString(x)` to convert a value `x` of any type to a string.
## Matchers as Test Assertions ##
|`ASSERT_THAT(expression, m)`|Generates a [fatal failure](../../googletest/docs/Primer.md#assertions) if the value of `expression` doesn't match matcher `m`.|
|:---------------------------|:----------------------------------------------------------------------------------------------------------------------------------------------|
|`EXPECT_THAT(expression, m)`|Generates a non-fatal failure if the value of `expression` doesn't match matcher `m`. |
# Actions #
**Actions** specify what a mock function should do when invoked.
## Returning a Value ##
|`Return()`|Return from a `void` mock function.|
|:---------|:----------------------------------|
|`Return(value)`|Return `value`. If the type of `value` is different to the mock function's return type, `value` is converted to the latter type <i>at the time the expectation is set</i>, not when the action is executed.|
|`ReturnArg<N>()`|Return the `N`-th (0-based) argument.|
|`ReturnNew<T>(a1, ..., ak)`|Return `new T(a1, ..., ak)`; a different object is created each time.|
|`ReturnNull()`|Return a null pointer. |
|`ReturnPointee(ptr)`|Return the value pointed to by `ptr`.|
|`ReturnRef(variable)`|Return a reference to `variable`. |
|`ReturnRefOfCopy(value)`|Return a reference to a copy of `value`; the copy lives as long as the action.|
## Side Effects ##
|`Assign(&variable, value)`|Assign `value` to variable.|
|:-------------------------|:--------------------------|
| `DeleteArg<N>()` | Delete the `N`-th (0-based) argument, which must be a pointer. |
| `SaveArg<N>(pointer)` | Save the `N`-th (0-based) argument to `*pointer`. |
| `SaveArgPointee<N>(pointer)` | Save the value pointed to by the `N`-th (0-based) argument to `*pointer`. |
| `SetArgReferee<N>(value)` | Assign value to the variable referenced by the `N`-th (0-based) argument. |
|`SetArgPointee<N>(value)` |Assign `value` to the variable pointed by the `N`-th (0-based) argument.|
|`SetArgumentPointee<N>(value)`|Same as `SetArgPointee<N>(value)`. Deprecated. Will be removed in v1.7.0.|
|`SetArrayArgument<N>(first, last)`|Copies the elements in source range [`first`, `last`) to the array pointed to by the `N`-th (0-based) argument, which can be either a pointer or an iterator. The action does not take ownership of the elements in the source range.|
|`SetErrnoAndReturn(error, value)`|Set `errno` to `error` and return `value`.|
|`Throw(exception)` |Throws the given exception, which can be any copyable value. Available since v1.1.0.|
## Using a Function or a Functor as an Action ##
|`Invoke(f)`|Invoke `f` with the arguments passed to the mock function, where `f` can be a global/static function or a functor.|
|:----------|:-----------------------------------------------------------------------------------------------------------------|
|`Invoke(object_pointer, &class::method)`|Invoke the {method on the object with the arguments passed to the mock function. |
|`InvokeWithoutArgs(f)`|Invoke `f`, which can be a global/static function or a functor. `f` must take no arguments. |
|`InvokeWithoutArgs(object_pointer, &class::method)`|Invoke the method on the object, which takes no arguments. |
|`InvokeArgument<N>(arg1, arg2, ..., argk)`|Invoke the mock function's `N`-th (0-based) argument, which must be a function or a functor, with the `k` arguments.|
The return value of the invoked function is used as the return value
of the action.
When defining a function or functor to be used with `Invoke*()`, you can declare any unused parameters as `Unused`:
```
double Distance(Unused, double x, double y) { return sqrt(x*x + y*y); }
...
EXPECT_CALL(mock, Foo("Hi", _, _)).WillOnce(Invoke(Distance));
```
In `InvokeArgument<N>(...)`, if an argument needs to be passed by reference, wrap it inside `ByRef()`. For example,
```
InvokeArgument<2>(5, string("Hi"), ByRef(foo))
```
calls the mock function's #2 argument, passing to it `5` and `string("Hi")` by value, and `foo` by reference.
## Default Action ##
|`DoDefault()`|Do the default action (specified by `ON_CALL()` or the built-in one).|
|:------------|:--------------------------------------------------------------------|
**Note:** due to technical reasons, `DoDefault()` cannot be used inside a composite action - trying to do so will result in a run-time error.
## Composite Actions ##
|`DoAll(a1, a2, ..., an)`|Do all actions `a1` to `an` and return the result of `an` in each invocation. The first `n - 1` sub-actions must return void. |
|:-----------------------|:-----------------------------------------------------------------------------------------------------------------------------|
|`IgnoreResult(a)` |Perform action `a` and ignore its result. `a` must not return void. |
|`WithArg<N>(a)` |Pass the `N`-th (0-based) argument of the mock function to action `a` and perform it. |
|`WithArgs<N1, N2, ..., Nk>(a)`|Pass the selected (0-based) arguments of the mock function to action `a` and perform it. |
|`WithoutArgs(a)` |Perform action `a` without any arguments. |
## Defining Actions ##
| `ACTION(Sum) { return arg0 + arg1; }` | Defines an action `Sum()` to return the sum of the mock function's argument #0 and #1. |
|:--------------------------------------|:---------------------------------------------------------------------------------------|
| `ACTION_P(Plus, n) { return arg0 + n; }` | Defines an action `Plus(n)` to return the sum of the mock function's argument #0 and `n`. |
| `ACTION_Pk(Foo, p1, ..., pk) { statements; }` | Defines a parameterized action `Foo(p1, ..., pk)` to execute the given `statements`. |
The `ACTION*` macros cannot be used inside a function or class.
# Cardinalities #
These are used in `Times()` to specify how many times a mock function will be called:
|`AnyNumber()`|The function can be called any number of times.|
|:------------|:----------------------------------------------|
|`AtLeast(n)` |The call is expected at least `n` times. |
|`AtMost(n)` |The call is expected at most `n` times. |
|`Between(m, n)`|The call is expected between `m` and `n` (inclusive) times.|
|`Exactly(n) or n`|The call is expected exactly `n` times. In particular, the call should never happen when `n` is 0.|
# Expectation Order #
By default, the expectations can be matched in _any_ order. If some
or all expectations must be matched in a given order, there are two
ways to specify it. They can be used either independently or
together.
## The After Clause ##
```
using ::testing::Expectation;
...
Expectation init_x = EXPECT_CALL(foo, InitX());
Expectation init_y = EXPECT_CALL(foo, InitY());
EXPECT_CALL(foo, Bar())
.After(init_x, init_y);
```
says that `Bar()` can be called only after both `InitX()` and
`InitY()` have been called.
If you don't know how many pre-requisites an expectation has when you
write it, you can use an `ExpectationSet` to collect them:
```
using ::testing::ExpectationSet;
...
ExpectationSet all_inits;
for (int i = 0; i < element_count; i++) {
all_inits += EXPECT_CALL(foo, InitElement(i));
}
EXPECT_CALL(foo, Bar())
.After(all_inits);
```
says that `Bar()` can be called only after all elements have been
initialized (but we don't care about which elements get initialized
before the others).
Modifying an `ExpectationSet` after using it in an `.After()` doesn't
affect the meaning of the `.After()`.
## Sequences ##
When you have a long chain of sequential expectations, it's easier to
specify the order using **sequences**, which don't require you to given
each expectation in the chain a different name. <i>All expected<br>
calls</i> in the same sequence must occur in the order they are
specified.
```
using ::testing::Sequence;
Sequence s1, s2;
...
EXPECT_CALL(foo, Reset())
.InSequence(s1, s2)
.WillOnce(Return(true));
EXPECT_CALL(foo, GetSize())
.InSequence(s1)
.WillOnce(Return(1));
EXPECT_CALL(foo, Describe(A<const char*>()))
.InSequence(s2)
.WillOnce(Return("dummy"));
```
says that `Reset()` must be called before _both_ `GetSize()` _and_
`Describe()`, and the latter two can occur in any order.
To put many expectations in a sequence conveniently:
```
using ::testing::InSequence;
{
InSequence dummy;
EXPECT_CALL(...)...;
EXPECT_CALL(...)...;
...
EXPECT_CALL(...)...;
}
```
says that all expected calls in the scope of `dummy` must occur in
strict order. The name `dummy` is irrelevant.)
# Verifying and Resetting a Mock #
Google Mock will verify the expectations on a mock object when it is destructed, or you can do it earlier:
```
using ::testing::Mock;
...
// Verifies and removes the expectations on mock_obj;
// returns true iff successful.
Mock::VerifyAndClearExpectations(&mock_obj);
...
// Verifies and removes the expectations on mock_obj;
// also removes the default actions set by ON_CALL();
// returns true iff successful.
Mock::VerifyAndClear(&mock_obj);
```
You can also tell Google Mock that a mock object can be leaked and doesn't
need to be verified:
```
Mock::AllowLeak(&mock_obj);
```
# Mock Classes #
Google Mock defines a convenient mock class template
```
class MockFunction<R(A1, ..., An)> {
public:
MOCK_METHODn(Call, R(A1, ..., An));
};
```
See this [recipe](CookBook.md#using-check-points) for one application of it.
# Flags #
| `--gmock_catch_leaked_mocks=0` | Don't report leaked mock objects as failures. |
|:-------------------------------|:----------------------------------------------|
| `--gmock_verbose=LEVEL` | Sets the default verbosity level (`info`, `warning`, or `error`) of Google Mock messages. |

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This page discusses the design of new Google Mock features.
# Macros for Defining Actions #
## Problem ##
Due to the lack of closures in C++, it currently requires some
non-trivial effort to define a custom action in Google Mock. For
example, suppose you want to "increment the value pointed to by the
second argument of the mock function and return it", you could write:
```
int IncrementArg1(Unused, int* p, Unused) {
return ++(*p);
}
... WillOnce(Invoke(IncrementArg1));
```
There are several things unsatisfactory about this approach:
* Even though the action only cares about the second argument of the mock function, its definition needs to list other arguments as dummies. This is tedious.
* The defined action is usable only in mock functions that takes exactly 3 arguments - an unnecessary restriction.
* To use the action, one has to say `Invoke(IncrementArg1)`, which isn't as nice as `IncrementArg1()`.
The latter two problems can be overcome using `MakePolymorphicAction()`,
but it requires much more boilerplate code:
```
class IncrementArg1Action {
public:
template <typename Result, typename ArgumentTuple>
Result Perform(const ArgumentTuple& args) const {
return ++(*tr1::get<1>(args));
}
};
PolymorphicAction<IncrementArg1Action> IncrementArg1() {
return MakePolymorphicAction(IncrementArg1Action());
}
... WillOnce(IncrementArg1());
```
Our goal is to allow defining custom actions with the least amount of
boiler-plate C++ requires.
## Solution ##
We propose to introduce a new macro:
```
ACTION(name) { statements; }
```
Using this in a namespace scope will define an action with the given
name that executes the statements. Inside the statements, you can
refer to the K-th (0-based) argument of the mock function as `argK`.
For example:
```
ACTION(IncrementArg1) { return ++(*arg1); }
```
allows you to write
```
... WillOnce(IncrementArg1());
```
Note that you don't need to specify the types of the mock function
arguments, as brevity is a top design goal here. Rest assured that
your code is still type-safe though: you'll get a compiler error if
`*arg1` doesn't support the `++` operator, or if the type of
`++(*arg1)` isn't compatible with the mock function's return type.
Another example:
```
ACTION(Foo) {
(*arg2)(5);
Blah();
*arg1 = 0;
return arg0;
}
```
defines an action `Foo()` that invokes argument #2 (a function pointer)
with 5, calls function `Blah()`, sets the value pointed to by argument
#1 to 0, and returns argument #0.
For more convenience and flexibility, you can also use the following
pre-defined symbols in the body of `ACTION`:
| `argK_type` | The type of the K-th (0-based) argument of the mock function |
|:------------|:-------------------------------------------------------------|
| `args` | All arguments of the mock function as a tuple |
| `args_type` | The type of all arguments of the mock function as a tuple |
| `return_type` | The return type of the mock function |
| `function_type` | The type of the mock function |
For example, when using an `ACTION` as a stub action for mock function:
```
int DoSomething(bool flag, int* ptr);
```
we have:
| **Pre-defined Symbol** | **Is Bound To** |
|:-----------------------|:----------------|
| `arg0` | the value of `flag` |
| `arg0_type` | the type `bool` |
| `arg1` | the value of `ptr` |
| `arg1_type` | the type `int*` |
| `args` | the tuple `(flag, ptr)` |
| `args_type` | the type `std::tr1::tuple<bool, int*>` |
| `return_type` | the type `int` |
| `function_type` | the type `int(bool, int*)` |
## Parameterized actions ##
Sometimes you'll want to parameterize the action. For that we propose
another macro
```
ACTION_P(name, param) { statements; }
```
For example,
```
ACTION_P(Add, n) { return arg0 + n; }
```
will allow you to write
```
// Returns argument #0 + 5.
... WillOnce(Add(5));
```
For convenience, we use the term _arguments_ for the values used to
invoke the mock function, and the term _parameters_ for the values
used to instantiate an action.
Note that you don't need to provide the type of the parameter either.
Suppose the parameter is named `param`, you can also use the
Google-Mock-defined symbol `param_type` to refer to the type of the
parameter as inferred by the compiler.
We will also provide `ACTION_P2`, `ACTION_P3`, and etc to support
multi-parameter actions. For example,
```
ACTION_P2(ReturnDistanceTo, x, y) {
double dx = arg0 - x;
double dy = arg1 - y;
return sqrt(dx*dx + dy*dy);
}
```
lets you write
```
... WillOnce(ReturnDistanceTo(5.0, 26.5));
```
You can view `ACTION` as a degenerated parameterized action where the
number of parameters is 0.
## Advanced Usages ##
### Overloading Actions ###
You can easily define actions overloaded on the number of parameters:
```
ACTION_P(Plus, a) { ... }
ACTION_P2(Plus, a, b) { ... }
```
### Restricting the Type of an Argument or Parameter ###
For maximum brevity and reusability, the `ACTION*` macros don't let
you specify the types of the mock function arguments and the action
parameters. Instead, we let the compiler infer the types for us.
Sometimes, however, we may want to be more explicit about the types.
There are several tricks to do that. For example:
```
ACTION(Foo) {
// Makes sure arg0 can be converted to int.
int n = arg0;
... use n instead of arg0 here ...
}
ACTION_P(Bar, param) {
// Makes sure the type of arg1 is const char*.
::testing::StaticAssertTypeEq<const char*, arg1_type>();
// Makes sure param can be converted to bool.
bool flag = param;
}
```
where `StaticAssertTypeEq` is a compile-time assertion we plan to add to
Google Test (the name is chosen to match `static_assert` in C++0x).
### Using the ACTION Object's Type ###
If you are writing a function that returns an `ACTION` object, you'll
need to know its type. The type depends on the macro used to define
the action and the parameter types. The rule is relatively simple:
| **Given Definition** | **Expression** | **Has Type** |
|:---------------------|:---------------|:-------------|
| `ACTION(Foo)` | `Foo()` | `FooAction` |
| `ACTION_P(Bar, param)` | `Bar(int_value)` | `BarActionP<int>` |
| `ACTION_P2(Baz, p1, p2)` | `Baz(bool_value, int_value)` | `BazActionP2<bool, int>` |
| ... | ... | ... |
Note that we have to pick different suffixes (`Action`, `ActionP`,
`ActionP2`, and etc) for actions with different numbers of parameters,
or the action definitions cannot be overloaded on the number of
parameters.
## When to Use ##
While the new macros are very convenient, please also consider other
means of implementing actions (e.g. via `ActionInterface` or
`MakePolymorphicAction()`), especially if you need to use the defined
action a lot. While the other approaches require more work, they give
you more control on the types of the mock function arguments and the
action parameters, which in general leads to better compiler error
messages that pay off in the long run. They also allow overloading
actions based on parameter types, as opposed to just the number of
parameters.
## Related Work ##
As you may have realized, the `ACTION*` macros resemble closures (also
known as lambda expressions or anonymous functions). Indeed, both of
them seek to lower the syntactic overhead for defining a function.
C++0x will support lambdas, but they are not part of C++ right now.
Some non-standard libraries (most notably BLL or Boost Lambda Library)
try to alleviate this problem. However, they are not a good choice
for defining actions as:
* They are non-standard and not widely installed. Google Mock only depends on standard libraries and `tr1::tuple`, which is part of the new C++ standard and comes with gcc 4+. We want to keep it that way.
* They are not trivial to learn.
* They will become obsolete when C++0x's lambda feature is widely supported. We don't want to make our users use a dying library.
* Since they are based on operators, they are rather ad hoc: you cannot use statements, and you cannot pass the lambda arguments to a function, for example.
* They have subtle semantics that easily confuses new users. For example, in expression `_1++ + foo++`, `foo` will be incremented only once where the expression is evaluated, while `_1` will be incremented every time the unnamed function is invoked. This is far from intuitive.
`ACTION*` avoid all these problems.
## Future Improvements ##
There may be a need for composing `ACTION*` definitions (i.e. invoking
another `ACTION` inside the definition of one `ACTION*`). We are not
sure we want it yet, as one can get a similar effect by putting
`ACTION` definitions in function templates and composing the function
templates. We'll revisit this based on user feedback.
The reason we don't allow `ACTION*()` inside a function body is that
the current C++ standard doesn't allow function-local types to be used
to instantiate templates. The upcoming C++0x standard will lift this
restriction. Once this feature is widely supported by compilers, we
can revisit the implementation and add support for using `ACTION*()`
inside a function.
C++0x will also support lambda expressions. When they become
available, we may want to support using lambdas as actions.
# Macros for Defining Matchers #
Once the macros for defining actions are implemented, we plan to do
the same for matchers:
```
MATCHER(name) { statements; }
```
where you can refer to the value being matched as `arg`. For example,
given:
```
MATCHER(IsPositive) { return arg > 0; }
```
you can use `IsPositive()` as a matcher that matches a value iff it is
greater than 0.
We will also add `MATCHER_P`, `MATCHER_P2`, and etc for parameterized
matchers.

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If you are interested in understanding the internals of Google Mock,
building from source, or contributing ideas or modifications to the
project, then this document is for you.
# Introduction #
First, let's give you some background of the project.
## Licensing ##
All Google Mock source and pre-built packages are provided under the [New BSD License](http://www.opensource.org/licenses/bsd-license.php).
## The Google Mock Community ##
The Google Mock community exists primarily through the [discussion group](http://groups.google.com/group/googlemock), the
[issue tracker](https://github.com/google/googletest/issues) and, to a lesser extent, the [source control repository](../). You are definitely encouraged to contribute to the
discussion and you can also help us to keep the effectiveness of the
group high by following and promoting the guidelines listed here.
### Please Be Friendly ###
Showing courtesy and respect to others is a vital part of the Google
culture, and we strongly encourage everyone participating in Google
Mock development to join us in accepting nothing less. Of course,
being courteous is not the same as failing to constructively disagree
with each other, but it does mean that we should be respectful of each
other when enumerating the 42 technical reasons that a particular
proposal may not be the best choice. There's never a reason to be
antagonistic or dismissive toward anyone who is sincerely trying to
contribute to a discussion.
Sure, C++ testing is serious business and all that, but it's also
a lot of fun. Let's keep it that way. Let's strive to be one of the
friendliest communities in all of open source.
### Where to Discuss Google Mock ###
As always, discuss Google Mock in the official [Google C++ Mocking Framework discussion group](http://groups.google.com/group/googlemock). You don't have to actually submit
code in order to sign up. Your participation itself is a valuable
contribution.
# Working with the Code #
If you want to get your hands dirty with the code inside Google Mock,
this is the section for you.
## Checking Out the Source from Subversion ##
Checking out the Google Mock source is most useful if you plan to
tweak it yourself. You check out the source for Google Mock using a
[Subversion](http://subversion.tigris.org/) client as you would for any
other project hosted on Google Code. Please see the instruction on
the [source code access page](../) for how to do it.
## Compiling from Source ##
Once you check out the code, you can find instructions on how to
compile it in the [README](../README.md) file.
## Testing ##
A mocking framework is of no good if itself is not thoroughly tested.
Tests should be written for any new code, and changes should be
verified to not break existing tests before they are submitted for
review. To perform the tests, follow the instructions in [README](http://code.google.com/p/googlemock/source/browse/trunk/README) and
verify that there are no failures.
# Contributing Code #
We are excited that Google Mock is now open source, and hope to get
great patches from the community. Before you fire up your favorite IDE
and begin hammering away at that new feature, though, please take the
time to read this section and understand the process. While it seems
rigorous, we want to keep a high standard of quality in the code
base.
## Contributor License Agreements ##
You must sign a Contributor License Agreement (CLA) before we can
accept any code. The CLA protects you and us.
* If you are an individual writing original source code and you're sure you own the intellectual property, then you'll need to sign an [individual CLA](http://code.google.com/legal/individual-cla-v1.0.html).
* If you work for a company that wants to allow you to contribute your work to Google Mock, then you'll need to sign a [corporate CLA](http://code.google.com/legal/corporate-cla-v1.0.html).
Follow either of the two links above to access the appropriate CLA and
instructions for how to sign and return it.
## Coding Style ##
To keep the source consistent, readable, diffable and easy to merge,
we use a fairly rigid coding style, as defined by the [google-styleguide](https://github.com/google/styleguide) project. All patches will be expected
to conform to the style outlined [here](https://github.com/google/styleguide/blob/gh-pages/cppguide.xml).
## Submitting Patches ##
Please do submit code. Here's what you need to do:
1. Normally you should make your change against the SVN trunk instead of a branch or a tag, as the latter two are for release control and should be treated mostly as read-only.
1. Decide which code you want to submit. A submission should be a set of changes that addresses one issue in the [Google Mock issue tracker](http://code.google.com/p/googlemock/issues/list). Please don't mix more than one logical change per submittal, because it makes the history hard to follow. If you want to make a change that doesn't have a corresponding issue in the issue tracker, please create one.
1. Also, coordinate with team members that are listed on the issue in question. This ensures that work isn't being duplicated and communicating your plan early also generally leads to better patches.
1. Ensure that your code adheres to the [Google Mock source code style](#Coding_Style.md).
1. Ensure that there are unit tests for your code.
1. Sign a Contributor License Agreement.
1. Create a patch file using `svn diff`.
1. We use [Rietveld](http://codereview.appspot.com/) to do web-based code reviews. You can read about the tool [here](https://github.com/rietveld-codereview/rietveld/wiki). When you are ready, upload your patch via Rietveld and notify `googlemock@googlegroups.com` to review it. There are several ways to upload the patch. We recommend using the [upload\_gmock.py](../scripts/upload_gmock.py) script, which you can find in the `scripts/` folder in the SVN trunk.
## Google Mock Committers ##
The current members of the Google Mock engineering team are the only
committers at present. In the great tradition of eating one's own
dogfood, we will be requiring each new Google Mock engineering team
member to earn the right to become a committer by following the
procedures in this document, writing consistently great code, and
demonstrating repeatedly that he or she truly gets the zen of Google
Mock.
# Release Process #
We follow the typical release process for Subversion-based projects:
1. A release branch named `release-X.Y` is created.
1. Bugs are fixed and features are added in trunk; those individual patches are merged into the release branch until it's stable.
1. An individual point release (the `Z` in `X.Y.Z`) is made by creating a tag from the branch.
1. Repeat steps 2 and 3 throughout one release cycle (as determined by features or time).
1. Go back to step 1 to create another release branch and so on.
---
This page is based on the [Making GWT Better](http://code.google.com/webtoolkit/makinggwtbetter.html) guide from the [Google Web Toolkit](http://code.google.com/webtoolkit/) project. Except as otherwise [noted](http://code.google.com/policies.html#restrictions), the content of this page is licensed under the [Creative Commons Attribution 2.5 License](http://creativecommons.org/licenses/by/2.5/).

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@ -1,12 +0,0 @@
This page lists all documentation wiki pages for Google Mock **(the SVN trunk version)**
- **if you use a released version of Google Mock, please read the documentation for that specific version instead.**
* [ForDummies](ForDummies.md) -- start here if you are new to Google Mock.
* [CheatSheet](CheatSheet.md) -- a quick reference.
* [CookBook](CookBook.md) -- recipes for doing various tasks using Google Mock.
* [FrequentlyAskedQuestions](FrequentlyAskedQuestions.md) -- check here before asking a question on the mailing list.
To contribute code to Google Mock, read:
* [DevGuide](DevGuide.md) -- read this _before_ writing your first patch.
* [Pump Manual](../googletest/docs/PumpManual.md) -- how we generate some of Google Mock's source files.

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(**Note:** If you get compiler errors that you don't understand, be sure to consult [Google Mock Doctor](FrequentlyAskedQuestions.md#how-am-i-supposed-to-make-sense-of-these-horrible-template-errors).)
# What Is Google C++ Mocking Framework? #
When you write a prototype or test, often it's not feasible or wise to rely on real objects entirely. A **mock object** implements the same interface as a real object (so it can be used as one), but lets you specify at run time how it will be used and what it should do (which methods will be called? in which order? how many times? with what arguments? what will they return? etc).
**Note:** It is easy to confuse the term _fake objects_ with mock objects. Fakes and mocks actually mean very different things in the Test-Driven Development (TDD) community:
* **Fake** objects have working implementations, but usually take some shortcut (perhaps to make the operations less expensive), which makes them not suitable for production. An in-memory file system would be an example of a fake.
* **Mocks** are objects pre-programmed with _expectations_, which form a specification of the calls they are expected to receive.
If all this seems too abstract for you, don't worry - the most important thing to remember is that a mock allows you to check the _interaction_ between itself and code that uses it. The difference between fakes and mocks will become much clearer once you start to use mocks.
**Google C++ Mocking Framework** (or **Google Mock** for short) is a library (sometimes we also call it a "framework" to make it sound cool) for creating mock classes and using them. It does to C++ what [jMock](http://www.jmock.org/) and [EasyMock](http://www.easymock.org/) do to Java.
Using Google Mock involves three basic steps:
1. Use some simple macros to describe the interface you want to mock, and they will expand to the implementation of your mock class;
1. Create some mock objects and specify its expectations and behavior using an intuitive syntax;
1. Exercise code that uses the mock objects. Google Mock will catch any violation of the expectations as soon as it arises.
# Why Google Mock? #
While mock objects help you remove unnecessary dependencies in tests and make them fast and reliable, using mocks manually in C++ is _hard_:
* Someone has to implement the mocks. The job is usually tedious and error-prone. No wonder people go great distance to avoid it.
* The quality of those manually written mocks is a bit, uh, unpredictable. You may see some really polished ones, but you may also see some that were hacked up in a hurry and have all sorts of ad hoc restrictions.
* The knowledge you gained from using one mock doesn't transfer to the next.
In contrast, Java and Python programmers have some fine mock frameworks, which automate the creation of mocks. As a result, mocking is a proven effective technique and widely adopted practice in those communities. Having the right tool absolutely makes the difference.
Google Mock was built to help C++ programmers. It was inspired by [jMock](http://www.jmock.org/) and [EasyMock](http://www.easymock.org/), but designed with C++'s specifics in mind. It is your friend if any of the following problems is bothering you:
* You are stuck with a sub-optimal design and wish you had done more prototyping before it was too late, but prototyping in C++ is by no means "rapid".
* Your tests are slow as they depend on too many libraries or use expensive resources (e.g. a database).
* Your tests are brittle as some resources they use are unreliable (e.g. the network).
* You want to test how your code handles a failure (e.g. a file checksum error), but it's not easy to cause one.
* You need to make sure that your module interacts with other modules in the right way, but it's hard to observe the interaction; therefore you resort to observing the side effects at the end of the action, which is awkward at best.
* You want to "mock out" your dependencies, except that they don't have mock implementations yet; and, frankly, you aren't thrilled by some of those hand-written mocks.
We encourage you to use Google Mock as:
* a _design_ tool, for it lets you experiment with your interface design early and often. More iterations lead to better designs!
* a _testing_ tool to cut your tests' outbound dependencies and probe the interaction between your module and its collaborators.
# Getting Started #
Using Google Mock is easy! Inside your C++ source file, just #include `"gtest/gtest.h"` and `"gmock/gmock.h"`, and you are ready to go.
# A Case for Mock Turtles #
Let's look at an example. Suppose you are developing a graphics program that relies on a LOGO-like API for drawing. How would you test that it does the right thing? Well, you can run it and compare the screen with a golden screen snapshot, but let's admit it: tests like this are expensive to run and fragile (What if you just upgraded to a shiny new graphics card that has better anti-aliasing? Suddenly you have to update all your golden images.). It would be too painful if all your tests are like this. Fortunately, you learned about Dependency Injection and know the right thing to do: instead of having your application talk to the drawing API directly, wrap the API in an interface (say, `Turtle`) and code to that interface:
```
class Turtle {
...
virtual ~Turtle() {}
virtual void PenUp() = 0;
virtual void PenDown() = 0;
virtual void Forward(int distance) = 0;
virtual void Turn(int degrees) = 0;
virtual void GoTo(int x, int y) = 0;
virtual int GetX() const = 0;
virtual int GetY() const = 0;
};
```
(Note that the destructor of `Turtle` **must** be virtual, as is the case for **all** classes you intend to inherit from - otherwise the destructor of the derived class will not be called when you delete an object through a base pointer, and you'll get corrupted program states like memory leaks.)
You can control whether the turtle's movement will leave a trace using `PenUp()` and `PenDown()`, and control its movement using `Forward()`, `Turn()`, and `GoTo()`. Finally, `GetX()` and `GetY()` tell you the current position of the turtle.
Your program will normally use a real implementation of this interface. In tests, you can use a mock implementation instead. This allows you to easily check what drawing primitives your program is calling, with what arguments, and in which order. Tests written this way are much more robust (they won't break because your new machine does anti-aliasing differently), easier to read and maintain (the intent of a test is expressed in the code, not in some binary images), and run _much, much faster_.
# Writing the Mock Class #
If you are lucky, the mocks you need to use have already been implemented by some nice people. If, however, you find yourself in the position to write a mock class, relax - Google Mock turns this task into a fun game! (Well, almost.)
## How to Define It ##
Using the `Turtle` interface as example, here are the simple steps you need to follow:
1. Derive a class `MockTurtle` from `Turtle`.
1. Take a _virtual_ function of `Turtle` (while it's possible to [mock non-virtual methods using templates](CookBook.md#mocking-nonvirtual-methods), it's much more involved). Count how many arguments it has.
1. In the `public:` section of the child class, write `MOCK_METHODn();` (or `MOCK_CONST_METHODn();` if you are mocking a `const` method), where `n` is the number of the arguments; if you counted wrong, shame on you, and a compiler error will tell you so.
1. Now comes the fun part: you take the function signature, cut-and-paste the _function name_ as the _first_ argument to the macro, and leave what's left as the _second_ argument (in case you're curious, this is the _type of the function_).
1. Repeat until all virtual functions you want to mock are done.
After the process, you should have something like:
```
#include "gmock/gmock.h" // Brings in Google Mock.
class MockTurtle : public Turtle {
public:
...
MOCK_METHOD0(PenUp, void());
MOCK_METHOD0(PenDown, void());
MOCK_METHOD1(Forward, void(int distance));
MOCK_METHOD1(Turn, void(int degrees));
MOCK_METHOD2(GoTo, void(int x, int y));
MOCK_CONST_METHOD0(GetX, int());
MOCK_CONST_METHOD0(GetY, int());
};
```
You don't need to define these mock methods somewhere else - the `MOCK_METHOD*` macros will generate the definitions for you. It's that simple! Once you get the hang of it, you can pump out mock classes faster than your source-control system can handle your check-ins.
**Tip:** If even this is too much work for you, you'll find the
`gmock_gen.py` tool in Google Mock's `scripts/generator/` directory (courtesy of the [cppclean](http://code.google.com/p/cppclean/) project) useful. This command-line
tool requires that you have Python 2.4 installed. You give it a C++ file and the name of an abstract class defined in it,
and it will print the definition of the mock class for you. Due to the
complexity of the C++ language, this script may not always work, but
it can be quite handy when it does. For more details, read the [user documentation](../scripts/generator/README).
## Where to Put It ##
When you define a mock class, you need to decide where to put its definition. Some people put it in a `*_test.cc`. This is fine when the interface being mocked (say, `Foo`) is owned by the same person or team. Otherwise, when the owner of `Foo` changes it, your test could break. (You can't really expect `Foo`'s maintainer to fix every test that uses `Foo`, can you?)
So, the rule of thumb is: if you need to mock `Foo` and it's owned by others, define the mock class in `Foo`'s package (better, in a `testing` sub-package such that you can clearly separate production code and testing utilities), and put it in a `mock_foo.h`. Then everyone can reference `mock_foo.h` from their tests. If `Foo` ever changes, there is only one copy of `MockFoo` to change, and only tests that depend on the changed methods need to be fixed.
Another way to do it: you can introduce a thin layer `FooAdaptor` on top of `Foo` and code to this new interface. Since you own `FooAdaptor`, you can absorb changes in `Foo` much more easily. While this is more work initially, carefully choosing the adaptor interface can make your code easier to write and more readable (a net win in the long run), as you can choose `FooAdaptor` to fit your specific domain much better than `Foo` does.
# Using Mocks in Tests #
Once you have a mock class, using it is easy. The typical work flow is:
1. Import the Google Mock names from the `testing` namespace such that you can use them unqualified (You only have to do it once per file. Remember that namespaces are a good idea and good for your health.).
1. Create some mock objects.
1. Specify your expectations on them (How many times will a method be called? With what arguments? What should it do? etc.).
1. Exercise some code that uses the mocks; optionally, check the result using Google Test assertions. If a mock method is called more than expected or with wrong arguments, you'll get an error immediately.
1. When a mock is destructed, Google Mock will automatically check whether all expectations on it have been satisfied.
Here's an example:
```
#include "path/to/mock-turtle.h"
#include "gmock/gmock.h"
#include "gtest/gtest.h"
using ::testing::AtLeast; // #1
TEST(PainterTest, CanDrawSomething) {
MockTurtle turtle; // #2
EXPECT_CALL(turtle, PenDown()) // #3
.Times(AtLeast(1));
Painter painter(&turtle); // #4
EXPECT_TRUE(painter.DrawCircle(0, 0, 10));
} // #5
int main(int argc, char** argv) {
// The following line must be executed to initialize Google Mock
// (and Google Test) before running the tests.
::testing::InitGoogleMock(&argc, argv);
return RUN_ALL_TESTS();
}
```
As you might have guessed, this test checks that `PenDown()` is called at least once. If the `painter` object didn't call this method, your test will fail with a message like this:
```
path/to/my_test.cc:119: Failure
Actual function call count doesn't match this expectation:
Actually: never called;
Expected: called at least once.
```
**Tip 1:** If you run the test from an Emacs buffer, you can hit `<Enter>` on the line number displayed in the error message to jump right to the failed expectation.
**Tip 2:** If your mock objects are never deleted, the final verification won't happen. Therefore it's a good idea to use a heap leak checker in your tests when you allocate mocks on the heap.
**Important note:** Google Mock requires expectations to be set **before** the mock functions are called, otherwise the behavior is **undefined**. In particular, you mustn't interleave `EXPECT_CALL()`s and calls to the mock functions.
This means `EXPECT_CALL()` should be read as expecting that a call will occur _in the future_, not that a call has occurred. Why does Google Mock work like that? Well, specifying the expectation beforehand allows Google Mock to report a violation as soon as it arises, when the context (stack trace, etc) is still available. This makes debugging much easier.
Admittedly, this test is contrived and doesn't do much. You can easily achieve the same effect without using Google Mock. However, as we shall reveal soon, Google Mock allows you to do _much more_ with the mocks.
## Using Google Mock with Any Testing Framework ##
If you want to use something other than Google Test (e.g. [CppUnit](http://sourceforge.net/projects/cppunit/) or
[CxxTest](http://cxxtest.tigris.org/)) as your testing framework, just change the `main()` function in the previous section to:
```
int main(int argc, char** argv) {
// The following line causes Google Mock to throw an exception on failure,
// which will be interpreted by your testing framework as a test failure.
::testing::GTEST_FLAG(throw_on_failure) = true;
::testing::InitGoogleMock(&argc, argv);
... whatever your testing framework requires ...
}
```
This approach has a catch: it makes Google Mock throw an exception
from a mock object's destructor sometimes. With some compilers, this
sometimes causes the test program to crash. You'll still be able to
notice that the test has failed, but it's not a graceful failure.
A better solution is to use Google Test's
[event listener API](../../googletest/docs/AdvancedGuide.md#extending-google-test-by-handling-test-events)
to report a test failure to your testing framework properly. You'll need to
implement the `OnTestPartResult()` method of the event listener interface, but it
should be straightforward.
If this turns out to be too much work, we suggest that you stick with
Google Test, which works with Google Mock seamlessly (in fact, it is
technically part of Google Mock.). If there is a reason that you
cannot use Google Test, please let us know.
# Setting Expectations #
The key to using a mock object successfully is to set the _right expectations_ on it. If you set the expectations too strict, your test will fail as the result of unrelated changes. If you set them too loose, bugs can slip through. You want to do it just right such that your test can catch exactly the kind of bugs you intend it to catch. Google Mock provides the necessary means for you to do it "just right."
## General Syntax ##
In Google Mock we use the `EXPECT_CALL()` macro to set an expectation on a mock method. The general syntax is:
```
EXPECT_CALL(mock_object, method(matchers))
.Times(cardinality)
.WillOnce(action)
.WillRepeatedly(action);
```
The macro has two arguments: first the mock object, and then the method and its arguments. Note that the two are separated by a comma (`,`), not a period (`.`). (Why using a comma? The answer is that it was necessary for technical reasons.)
The macro can be followed by some optional _clauses_ that provide more information about the expectation. We'll discuss how each clause works in the coming sections.
This syntax is designed to make an expectation read like English. For example, you can probably guess that
```
using ::testing::Return;...
EXPECT_CALL(turtle, GetX())
.Times(5)
.WillOnce(Return(100))
.WillOnce(Return(150))
.WillRepeatedly(Return(200));
```
says that the `turtle` object's `GetX()` method will be called five times, it will return 100 the first time, 150 the second time, and then 200 every time. Some people like to call this style of syntax a Domain-Specific Language (DSL).
**Note:** Why do we use a macro to do this? It serves two purposes: first it makes expectations easily identifiable (either by `grep` or by a human reader), and second it allows Google Mock to include the source file location of a failed expectation in messages, making debugging easier.
## Matchers: What Arguments Do We Expect? ##
When a mock function takes arguments, we must specify what arguments we are expecting; for example:
```
// Expects the turtle to move forward by 100 units.
EXPECT_CALL(turtle, Forward(100));
```
Sometimes you may not want to be too specific (Remember that talk about tests being too rigid? Over specification leads to brittle tests and obscures the intent of tests. Therefore we encourage you to specify only what's necessary - no more, no less.). If you care to check that `Forward()` will be called but aren't interested in its actual argument, write `_` as the argument, which means "anything goes":
```
using ::testing::_;
...
// Expects the turtle to move forward.
EXPECT_CALL(turtle, Forward(_));
```
`_` is an instance of what we call **matchers**. A matcher is like a predicate and can test whether an argument is what we'd expect. You can use a matcher inside `EXPECT_CALL()` wherever a function argument is expected.
A list of built-in matchers can be found in the [CheatSheet](CheatSheet.md). For example, here's the `Ge` (greater than or equal) matcher:
```
using ::testing::Ge;...
EXPECT_CALL(turtle, Forward(Ge(100)));
```
This checks that the turtle will be told to go forward by at least 100 units.
## Cardinalities: How Many Times Will It Be Called? ##
The first clause we can specify following an `EXPECT_CALL()` is `Times()`. We call its argument a **cardinality** as it tells _how many times_ the call should occur. It allows us to repeat an expectation many times without actually writing it as many times. More importantly, a cardinality can be "fuzzy", just like a matcher can be. This allows a user to express the intent of a test exactly.
An interesting special case is when we say `Times(0)`. You may have guessed - it means that the function shouldn't be called with the given arguments at all, and Google Mock will report a Google Test failure whenever the function is (wrongfully) called.
We've seen `AtLeast(n)` as an example of fuzzy cardinalities earlier. For the list of built-in cardinalities you can use, see the [CheatSheet](CheatSheet.md).
The `Times()` clause can be omitted. **If you omit `Times()`, Google Mock will infer the cardinality for you.** The rules are easy to remember:
* If **neither** `WillOnce()` **nor** `WillRepeatedly()` is in the `EXPECT_CALL()`, the inferred cardinality is `Times(1)`.
* If there are `n WillOnce()`'s but **no** `WillRepeatedly()`, where `n` >= 1, the cardinality is `Times(n)`.
* If there are `n WillOnce()`'s and **one** `WillRepeatedly()`, where `n` >= 0, the cardinality is `Times(AtLeast(n))`.
**Quick quiz:** what do you think will happen if a function is expected to be called twice but actually called four times?
## Actions: What Should It Do? ##
Remember that a mock object doesn't really have a working implementation? We as users have to tell it what to do when a method is invoked. This is easy in Google Mock.
First, if the return type of a mock function is a built-in type or a pointer, the function has a **default action** (a `void` function will just return, a `bool` function will return `false`, and other functions will return 0). In addition, in C++ 11 and above, a mock function whose return type is default-constructible (i.e. has a default constructor) has a default action of returning a default-constructed value. If you don't say anything, this behavior will be used.
Second, if a mock function doesn't have a default action, or the default action doesn't suit you, you can specify the action to be taken each time the expectation matches using a series of `WillOnce()` clauses followed by an optional `WillRepeatedly()`. For example,
```
using ::testing::Return;...
EXPECT_CALL(turtle, GetX())
.WillOnce(Return(100))
.WillOnce(Return(200))
.WillOnce(Return(300));
```
This says that `turtle.GetX()` will be called _exactly three times_ (Google Mock inferred this from how many `WillOnce()` clauses we've written, since we didn't explicitly write `Times()`), and will return 100, 200, and 300 respectively.
```
using ::testing::Return;...
EXPECT_CALL(turtle, GetY())
.WillOnce(Return(100))
.WillOnce(Return(200))
.WillRepeatedly(Return(300));
```
says that `turtle.GetY()` will be called _at least twice_ (Google Mock knows this as we've written two `WillOnce()` clauses and a `WillRepeatedly()` while having no explicit `Times()`), will return 100 the first time, 200 the second time, and 300 from the third time on.
Of course, if you explicitly write a `Times()`, Google Mock will not try to infer the cardinality itself. What if the number you specified is larger than there are `WillOnce()` clauses? Well, after all `WillOnce()`s are used up, Google Mock will do the _default_ action for the function every time (unless, of course, you have a `WillRepeatedly()`.).
What can we do inside `WillOnce()` besides `Return()`? You can return a reference using `ReturnRef(variable)`, or invoke a pre-defined function, among [others](CheatSheet.md#actions).
**Important note:** The `EXPECT_CALL()` statement evaluates the action clause only once, even though the action may be performed many times. Therefore you must be careful about side effects. The following may not do what you want:
```
int n = 100;
EXPECT_CALL(turtle, GetX())
.Times(4)
.WillRepeatedly(Return(n++));
```
Instead of returning 100, 101, 102, ..., consecutively, this mock function will always return 100 as `n++` is only evaluated once. Similarly, `Return(new Foo)` will create a new `Foo` object when the `EXPECT_CALL()` is executed, and will return the same pointer every time. If you want the side effect to happen every time, you need to define a custom action, which we'll teach in the [CookBook](CookBook.md).
Time for another quiz! What do you think the following means?
```
using ::testing::Return;...
EXPECT_CALL(turtle, GetY())
.Times(4)
.WillOnce(Return(100));
```
Obviously `turtle.GetY()` is expected to be called four times. But if you think it will return 100 every time, think twice! Remember that one `WillOnce()` clause will be consumed each time the function is invoked and the default action will be taken afterwards. So the right answer is that `turtle.GetY()` will return 100 the first time, but **return 0 from the second time on**, as returning 0 is the default action for `int` functions.
## Using Multiple Expectations ##
So far we've only shown examples where you have a single expectation. More realistically, you're going to specify expectations on multiple mock methods, which may be from multiple mock objects.
By default, when a mock method is invoked, Google Mock will search the expectations in the **reverse order** they are defined, and stop when an active expectation that matches the arguments is found (you can think of it as "newer rules override older ones."). If the matching expectation cannot take any more calls, you will get an upper-bound-violated failure. Here's an example:
```
using ::testing::_;...
EXPECT_CALL(turtle, Forward(_)); // #1
EXPECT_CALL(turtle, Forward(10)) // #2
.Times(2);
```
If `Forward(10)` is called three times in a row, the third time it will be an error, as the last matching expectation (#2) has been saturated. If, however, the third `Forward(10)` call is replaced by `Forward(20)`, then it would be OK, as now #1 will be the matching expectation.
**Side note:** Why does Google Mock search for a match in the _reverse_ order of the expectations? The reason is that this allows a user to set up the default expectations in a mock object's constructor or the test fixture's set-up phase and then customize the mock by writing more specific expectations in the test body. So, if you have two expectations on the same method, you want to put the one with more specific matchers **after** the other, or the more specific rule would be shadowed by the more general one that comes after it.
## Ordered vs Unordered Calls ##
By default, an expectation can match a call even though an earlier expectation hasn't been satisfied. In other words, the calls don't have to occur in the order the expectations are specified.
Sometimes, you may want all the expected calls to occur in a strict order. To say this in Google Mock is easy:
```
using ::testing::InSequence;...
TEST(FooTest, DrawsLineSegment) {
...
{
InSequence dummy;
EXPECT_CALL(turtle, PenDown());
EXPECT_CALL(turtle, Forward(100));
EXPECT_CALL(turtle, PenUp());
}
Foo();
}
```
By creating an object of type `InSequence`, all expectations in its scope are put into a _sequence_ and have to occur _sequentially_. Since we are just relying on the constructor and destructor of this object to do the actual work, its name is really irrelevant.
In this example, we test that `Foo()` calls the three expected functions in the order as written. If a call is made out-of-order, it will be an error.
(What if you care about the relative order of some of the calls, but not all of them? Can you specify an arbitrary partial order? The answer is ... yes! If you are impatient, the details can be found in the [CookBook](CookBook#Expecting_Partially_Ordered_Calls.md).)
## All Expectations Are Sticky (Unless Said Otherwise) ##
Now let's do a quick quiz to see how well you can use this mock stuff already. How would you test that the turtle is asked to go to the origin _exactly twice_ (you want to ignore any other instructions it receives)?
After you've come up with your answer, take a look at ours and compare notes (solve it yourself first - don't cheat!):
```
using ::testing::_;...
EXPECT_CALL(turtle, GoTo(_, _)) // #1
.Times(AnyNumber());
EXPECT_CALL(turtle, GoTo(0, 0)) // #2
.Times(2);
```
Suppose `turtle.GoTo(0, 0)` is called three times. In the third time, Google Mock will see that the arguments match expectation #2 (remember that we always pick the last matching expectation). Now, since we said that there should be only two such calls, Google Mock will report an error immediately. This is basically what we've told you in the "Using Multiple Expectations" section above.
This example shows that **expectations in Google Mock are "sticky" by default**, in the sense that they remain active even after we have reached their invocation upper bounds. This is an important rule to remember, as it affects the meaning of the spec, and is **different** to how it's done in many other mocking frameworks (Why'd we do that? Because we think our rule makes the common cases easier to express and understand.).
Simple? Let's see if you've really understood it: what does the following code say?
```
using ::testing::Return;
...
for (int i = n; i > 0; i--) {
EXPECT_CALL(turtle, GetX())
.WillOnce(Return(10*i));
}
```
If you think it says that `turtle.GetX()` will be called `n` times and will return 10, 20, 30, ..., consecutively, think twice! The problem is that, as we said, expectations are sticky. So, the second time `turtle.GetX()` is called, the last (latest) `EXPECT_CALL()` statement will match, and will immediately lead to an "upper bound exceeded" error - this piece of code is not very useful!
One correct way of saying that `turtle.GetX()` will return 10, 20, 30, ..., is to explicitly say that the expectations are _not_ sticky. In other words, they should _retire_ as soon as they are saturated:
```
using ::testing::Return;
...
for (int i = n; i > 0; i--) {
EXPECT_CALL(turtle, GetX())
.WillOnce(Return(10*i))
.RetiresOnSaturation();
}
```
And, there's a better way to do it: in this case, we expect the calls to occur in a specific order, and we line up the actions to match the order. Since the order is important here, we should make it explicit using a sequence:
```
using ::testing::InSequence;
using ::testing::Return;
...
{
InSequence s;
for (int i = 1; i <= n; i++) {
EXPECT_CALL(turtle, GetX())
.WillOnce(Return(10*i))
.RetiresOnSaturation();
}
}
```
By the way, the other situation where an expectation may _not_ be sticky is when it's in a sequence - as soon as another expectation that comes after it in the sequence has been used, it automatically retires (and will never be used to match any call).
## Uninteresting Calls ##
A mock object may have many methods, and not all of them are that interesting. For example, in some tests we may not care about how many times `GetX()` and `GetY()` get called.
In Google Mock, if you are not interested in a method, just don't say anything about it. If a call to this method occurs, you'll see a warning in the test output, but it won't be a failure.
# What Now? #
Congratulations! You've learned enough about Google Mock to start using it. Now, you might want to join the [googlemock](http://groups.google.com/group/googlemock) discussion group and actually write some tests using Google Mock - it will be fun. Hey, it may even be addictive - you've been warned.
Then, if you feel like increasing your mock quotient, you should move on to the [CookBook](CookBook.md). You can learn many advanced features of Google Mock there -- and advance your level of enjoyment and testing bliss.

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@ -1,628 +0,0 @@
Please send your questions to the
[googlemock](http://groups.google.com/group/googlemock) discussion
group. If you need help with compiler errors, make sure you have
tried [Google Mock Doctor](#How_am_I_supposed_to_make_sense_of_these_horrible_template_error.md) first.
## When I call a method on my mock object, the method for the real object is invoked instead. What's the problem? ##
In order for a method to be mocked, it must be _virtual_, unless you use the [high-perf dependency injection technique](CookBook.md#mocking-nonvirtual-methods).
## I wrote some matchers. After I upgraded to a new version of Google Mock, they no longer compile. What's going on? ##
After version 1.4.0 of Google Mock was released, we had an idea on how
to make it easier to write matchers that can generate informative
messages efficiently. We experimented with this idea and liked what
we saw. Therefore we decided to implement it.
Unfortunately, this means that if you have defined your own matchers
by implementing `MatcherInterface` or using `MakePolymorphicMatcher()`,
your definitions will no longer compile. Matchers defined using the
`MATCHER*` family of macros are not affected.
Sorry for the hassle if your matchers are affected. We believe it's
in everyone's long-term interest to make this change sooner than
later. Fortunately, it's usually not hard to migrate an existing
matcher to the new API. Here's what you need to do:
If you wrote your matcher like this:
```
// Old matcher definition that doesn't work with the latest
// Google Mock.
using ::testing::MatcherInterface;
...
class MyWonderfulMatcher : public MatcherInterface<MyType> {
public:
...
virtual bool Matches(MyType value) const {
// Returns true if value matches.
return value.GetFoo() > 5;
}
...
};
```
you'll need to change it to:
```
// New matcher definition that works with the latest Google Mock.
using ::testing::MatcherInterface;
using ::testing::MatchResultListener;
...
class MyWonderfulMatcher : public MatcherInterface<MyType> {
public:
...
virtual bool MatchAndExplain(MyType value,
MatchResultListener* listener) const {
// Returns true if value matches.
return value.GetFoo() > 5;
}
...
};
```
(i.e. rename `Matches()` to `MatchAndExplain()` and give it a second
argument of type `MatchResultListener*`.)
If you were also using `ExplainMatchResultTo()` to improve the matcher
message:
```
// Old matcher definition that doesn't work with the lastest
// Google Mock.
using ::testing::MatcherInterface;
...
class MyWonderfulMatcher : public MatcherInterface<MyType> {
public:
...
virtual bool Matches(MyType value) const {
// Returns true if value matches.
return value.GetFoo() > 5;
}
virtual void ExplainMatchResultTo(MyType value,
::std::ostream* os) const {
// Prints some helpful information to os to help
// a user understand why value matches (or doesn't match).
*os << "the Foo property is " << value.GetFoo();
}
...
};
```
you should move the logic of `ExplainMatchResultTo()` into
`MatchAndExplain()`, using the `MatchResultListener` argument where
the `::std::ostream` was used:
```
// New matcher definition that works with the latest Google Mock.
using ::testing::MatcherInterface;
using ::testing::MatchResultListener;
...
class MyWonderfulMatcher : public MatcherInterface<MyType> {
public:
...
virtual bool MatchAndExplain(MyType value,
MatchResultListener* listener) const {
// Returns true if value matches.
*listener << "the Foo property is " << value.GetFoo();
return value.GetFoo() > 5;
}
...
};
```
If your matcher is defined using `MakePolymorphicMatcher()`:
```
// Old matcher definition that doesn't work with the latest
// Google Mock.
using ::testing::MakePolymorphicMatcher;
...
class MyGreatMatcher {
public:
...
bool Matches(MyType value) const {
// Returns true if value matches.
return value.GetBar() < 42;
}
...
};
... MakePolymorphicMatcher(MyGreatMatcher()) ...
```
you should rename the `Matches()` method to `MatchAndExplain()` and
add a `MatchResultListener*` argument (the same as what you need to do
for matchers defined by implementing `MatcherInterface`):
```
// New matcher definition that works with the latest Google Mock.
using ::testing::MakePolymorphicMatcher;
using ::testing::MatchResultListener;
...
class MyGreatMatcher {
public:
...
bool MatchAndExplain(MyType value,
MatchResultListener* listener) const {
// Returns true if value matches.
return value.GetBar() < 42;
}
...
};
... MakePolymorphicMatcher(MyGreatMatcher()) ...
```
If your polymorphic matcher uses `ExplainMatchResultTo()` for better
failure messages:
```
// Old matcher definition that doesn't work with the latest
// Google Mock.
using ::testing::MakePolymorphicMatcher;
...
class MyGreatMatcher {
public:
...
bool Matches(MyType value) const {
// Returns true if value matches.
return value.GetBar() < 42;
}
...
};
void ExplainMatchResultTo(const MyGreatMatcher& matcher,
MyType value,
::std::ostream* os) {
// Prints some helpful information to os to help
// a user understand why value matches (or doesn't match).
*os << "the Bar property is " << value.GetBar();
}
... MakePolymorphicMatcher(MyGreatMatcher()) ...
```
you'll need to move the logic inside `ExplainMatchResultTo()` to
`MatchAndExplain()`:
```
// New matcher definition that works with the latest Google Mock.
using ::testing::MakePolymorphicMatcher;
using ::testing::MatchResultListener;
...
class MyGreatMatcher {
public:
...
bool MatchAndExplain(MyType value,
MatchResultListener* listener) const {
// Returns true if value matches.
*listener << "the Bar property is " << value.GetBar();
return value.GetBar() < 42;
}
...
};
... MakePolymorphicMatcher(MyGreatMatcher()) ...
```
For more information, you can read these
[two](CookBook.md#writing-new-monomorphic-matchers)
[recipes](CookBook.md#writing-new-polymorphic-matchers)
from the cookbook. As always, you
are welcome to post questions on `googlemock@googlegroups.com` if you
need any help.
## When using Google Mock, do I have to use Google Test as the testing framework? I have my favorite testing framework and don't want to switch. ##
Google Mock works out of the box with Google Test. However, it's easy
to configure it to work with any testing framework of your choice.
[Here](ForDummies.md#using-google-mock-with-any-testing-framework) is how.
## How am I supposed to make sense of these horrible template errors? ##
If you are confused by the compiler errors gcc threw at you,
try consulting the _Google Mock Doctor_ tool first. What it does is to
scan stdin for gcc error messages, and spit out diagnoses on the
problems (we call them diseases) your code has.
To "install", run command:
```
alias gmd='<path to googlemock>/scripts/gmock_doctor.py'
```
To use it, do:
```
<your-favorite-build-command> <your-test> 2>&1 | gmd
```
For example:
```
make my_test 2>&1 | gmd
```
Or you can run `gmd` and copy-n-paste gcc's error messages to it.
## Can I mock a variadic function? ##
You cannot mock a variadic function (i.e. a function taking ellipsis
(`...`) arguments) directly in Google Mock.
The problem is that in general, there is _no way_ for a mock object to
know how many arguments are passed to the variadic method, and what
the arguments' types are. Only the _author of the base class_ knows
the protocol, and we cannot look into his head.
Therefore, to mock such a function, the _user_ must teach the mock
object how to figure out the number of arguments and their types. One
way to do it is to provide overloaded versions of the function.
Ellipsis arguments are inherited from C and not really a C++ feature.
They are unsafe to use and don't work with arguments that have
constructors or destructors. Therefore we recommend to avoid them in
C++ as much as possible.
## MSVC gives me warning C4301 or C4373 when I define a mock method with a const parameter. Why? ##
If you compile this using Microsoft Visual C++ 2005 SP1:
```
class Foo {
...
virtual void Bar(const int i) = 0;
};
class MockFoo : public Foo {
...
MOCK_METHOD1(Bar, void(const int i));
};
```
You may get the following warning:
```
warning C4301: 'MockFoo::Bar': overriding virtual function only differs from 'Foo::Bar' by const/volatile qualifier
```
This is a MSVC bug. The same code compiles fine with gcc ,for
example. If you use Visual C++ 2008 SP1, you would get the warning:
```
warning C4373: 'MockFoo::Bar': virtual function overrides 'Foo::Bar', previous versions of the compiler did not override when parameters only differed by const/volatile qualifiers
```
In C++, if you _declare_ a function with a `const` parameter, the
`const` modifier is _ignored_. Therefore, the `Foo` base class above
is equivalent to:
```
class Foo {
...
virtual void Bar(int i) = 0; // int or const int? Makes no difference.
};
```
In fact, you can _declare_ Bar() with an `int` parameter, and _define_
it with a `const int` parameter. The compiler will still match them
up.
Since making a parameter `const` is meaningless in the method
_declaration_, we recommend to remove it in both `Foo` and `MockFoo`.
That should workaround the VC bug.
Note that we are talking about the _top-level_ `const` modifier here.
If the function parameter is passed by pointer or reference, declaring
the _pointee_ or _referee_ as `const` is still meaningful. For
example, the following two declarations are _not_ equivalent:
```
void Bar(int* p); // Neither p nor *p is const.
void Bar(const int* p); // p is not const, but *p is.
```
## I have a huge mock class, and Microsoft Visual C++ runs out of memory when compiling it. What can I do? ##
We've noticed that when the `/clr` compiler flag is used, Visual C++
uses 5~6 times as much memory when compiling a mock class. We suggest
to avoid `/clr` when compiling native C++ mocks.
## I can't figure out why Google Mock thinks my expectations are not satisfied. What should I do? ##
You might want to run your test with
`--gmock_verbose=info`. This flag lets Google Mock print a trace
of every mock function call it receives. By studying the trace,
you'll gain insights on why the expectations you set are not met.
## How can I assert that a function is NEVER called? ##
```
EXPECT_CALL(foo, Bar(_))
.Times(0);
```
## I have a failed test where Google Mock tells me TWICE that a particular expectation is not satisfied. Isn't this redundant? ##
When Google Mock detects a failure, it prints relevant information
(the mock function arguments, the state of relevant expectations, and
etc) to help the user debug. If another failure is detected, Google
Mock will do the same, including printing the state of relevant
expectations.
Sometimes an expectation's state didn't change between two failures,
and you'll see the same description of the state twice. They are
however _not_ redundant, as they refer to _different points in time_.
The fact they are the same _is_ interesting information.
## I get a heap check failure when using a mock object, but using a real object is fine. What can be wrong? ##
Does the class (hopefully a pure interface) you are mocking have a
virtual destructor?
Whenever you derive from a base class, make sure its destructor is
virtual. Otherwise Bad Things will happen. Consider the following
code:
```
class Base {
public:
// Not virtual, but should be.
~Base() { ... }
...
};
class Derived : public Base {
public:
...
private:
std::string value_;
};
...
Base* p = new Derived;
...
delete p; // Surprise! ~Base() will be called, but ~Derived() will not
// - value_ is leaked.
```
By changing `~Base()` to virtual, `~Derived()` will be correctly
called when `delete p` is executed, and the heap checker
will be happy.
## The "newer expectations override older ones" rule makes writing expectations awkward. Why does Google Mock do that? ##
When people complain about this, often they are referring to code like:
```
// foo.Bar() should be called twice, return 1 the first time, and return
// 2 the second time. However, I have to write the expectations in the
// reverse order. This sucks big time!!!
EXPECT_CALL(foo, Bar())
.WillOnce(Return(2))
.RetiresOnSaturation();
EXPECT_CALL(foo, Bar())
.WillOnce(Return(1))
.RetiresOnSaturation();
```
The problem is that they didn't pick the **best** way to express the test's
intent.
By default, expectations don't have to be matched in _any_ particular
order. If you want them to match in a certain order, you need to be
explicit. This is Google Mock's (and jMock's) fundamental philosophy: it's
easy to accidentally over-specify your tests, and we want to make it
harder to do so.
There are two better ways to write the test spec. You could either
put the expectations in sequence:
```
// foo.Bar() should be called twice, return 1 the first time, and return
// 2 the second time. Using a sequence, we can write the expectations
// in their natural order.
{
InSequence s;
EXPECT_CALL(foo, Bar())
.WillOnce(Return(1))
.RetiresOnSaturation();
EXPECT_CALL(foo, Bar())
.WillOnce(Return(2))
.RetiresOnSaturation();
}
```
or you can put the sequence of actions in the same expectation:
```
// foo.Bar() should be called twice, return 1 the first time, and return
// 2 the second time.
EXPECT_CALL(foo, Bar())
.WillOnce(Return(1))
.WillOnce(Return(2))
.RetiresOnSaturation();
```
Back to the original questions: why does Google Mock search the
expectations (and `ON_CALL`s) from back to front? Because this
allows a user to set up a mock's behavior for the common case early
(e.g. in the mock's constructor or the test fixture's set-up phase)
and customize it with more specific rules later. If Google Mock
searches from front to back, this very useful pattern won't be
possible.
## Google Mock prints a warning when a function without EXPECT\_CALL is called, even if I have set its behavior using ON\_CALL. Would it be reasonable not to show the warning in this case? ##
When choosing between being neat and being safe, we lean toward the
latter. So the answer is that we think it's better to show the
warning.
Often people write `ON_CALL`s in the mock object's
constructor or `SetUp()`, as the default behavior rarely changes from
test to test. Then in the test body they set the expectations, which
are often different for each test. Having an `ON_CALL` in the set-up
part of a test doesn't mean that the calls are expected. If there's
no `EXPECT_CALL` and the method is called, it's possibly an error. If
we quietly let the call go through without notifying the user, bugs
may creep in unnoticed.
If, however, you are sure that the calls are OK, you can write
```
EXPECT_CALL(foo, Bar(_))
.WillRepeatedly(...);
```
instead of
```
ON_CALL(foo, Bar(_))
.WillByDefault(...);
```
This tells Google Mock that you do expect the calls and no warning should be
printed.
Also, you can control the verbosity using the `--gmock_verbose` flag.
If you find the output too noisy when debugging, just choose a less
verbose level.
## How can I delete the mock function's argument in an action? ##
If you find yourself needing to perform some action that's not
supported by Google Mock directly, remember that you can define your own
actions using
[MakeAction()](CookBook.md#writing-new-actions) or
[MakePolymorphicAction()](CookBook.md#writing_new_polymorphic_actions),
or you can write a stub function and invoke it using
[Invoke()](CookBook.md#using-functions_methods_functors).
## MOCK\_METHODn()'s second argument looks funny. Why don't you use the MOCK\_METHODn(Method, return\_type, arg\_1, ..., arg\_n) syntax? ##
What?! I think it's beautiful. :-)
While which syntax looks more natural is a subjective matter to some
extent, Google Mock's syntax was chosen for several practical advantages it
has.
Try to mock a function that takes a map as an argument:
```
virtual int GetSize(const map<int, std::string>& m);
```
Using the proposed syntax, it would be:
```
MOCK_METHOD1(GetSize, int, const map<int, std::string>& m);
```
Guess what? You'll get a compiler error as the compiler thinks that
`const map<int, std::string>& m` are **two**, not one, arguments. To work
around this you can use `typedef` to give the map type a name, but
that gets in the way of your work. Google Mock's syntax avoids this
problem as the function's argument types are protected inside a pair
of parentheses:
```
// This compiles fine.
MOCK_METHOD1(GetSize, int(const map<int, std::string>& m));
```
You still need a `typedef` if the return type contains an unprotected
comma, but that's much rarer.
Other advantages include:
1. `MOCK_METHOD1(Foo, int, bool)` can leave a reader wonder whether the method returns `int` or `bool`, while there won't be such confusion using Google Mock's syntax.
1. The way Google Mock describes a function type is nothing new, although many people may not be familiar with it. The same syntax was used in C, and the `function` library in `tr1` uses this syntax extensively. Since `tr1` will become a part of the new version of STL, we feel very comfortable to be consistent with it.
1. The function type syntax is also used in other parts of Google Mock's API (e.g. the action interface) in order to make the implementation tractable. A user needs to learn it anyway in order to utilize Google Mock's more advanced features. We'd as well stick to the same syntax in `MOCK_METHOD*`!
## My code calls a static/global function. Can I mock it? ##
You can, but you need to make some changes.
In general, if you find yourself needing to mock a static function,
it's a sign that your modules are too tightly coupled (and less
flexible, less reusable, less testable, etc). You are probably better
off defining a small interface and call the function through that
interface, which then can be easily mocked. It's a bit of work
initially, but usually pays for itself quickly.
This Google Testing Blog
[post](http://googletesting.blogspot.com/2008/06/defeat-static-cling.html)
says it excellently. Check it out.
## My mock object needs to do complex stuff. It's a lot of pain to specify the actions. Google Mock sucks! ##
I know it's not a question, but you get an answer for free any way. :-)
With Google Mock, you can create mocks in C++ easily. And people might be
tempted to use them everywhere. Sometimes they work great, and
sometimes you may find them, well, a pain to use. So, what's wrong in
the latter case?
When you write a test without using mocks, you exercise the code and
assert that it returns the correct value or that the system is in an
expected state. This is sometimes called "state-based testing".
Mocks are great for what some call "interaction-based" testing:
instead of checking the system state at the very end, mock objects
verify that they are invoked the right way and report an error as soon
as it arises, giving you a handle on the precise context in which the
error was triggered. This is often more effective and economical to
do than state-based testing.
If you are doing state-based testing and using a test double just to
simulate the real object, you are probably better off using a fake.
Using a mock in this case causes pain, as it's not a strong point for
mocks to perform complex actions. If you experience this and think
that mocks suck, you are just not using the right tool for your
problem. Or, you might be trying to solve the wrong problem. :-)
## I got a warning "Uninteresting function call encountered - default action taken.." Should I panic? ##
By all means, NO! It's just an FYI.
What it means is that you have a mock function, you haven't set any
expectations on it (by Google Mock's rule this means that you are not
interested in calls to this function and therefore it can be called
any number of times), and it is called. That's OK - you didn't say
it's not OK to call the function!
What if you actually meant to disallow this function to be called, but
forgot to write `EXPECT_CALL(foo, Bar()).Times(0)`? While
one can argue that it's the user's fault, Google Mock tries to be nice and
prints you a note.
So, when you see the message and believe that there shouldn't be any
uninteresting calls, you should investigate what's going on. To make
your life easier, Google Mock prints the function name and arguments
when an uninteresting call is encountered.
## I want to define a custom action. Should I use Invoke() or implement the action interface? ##
Either way is fine - you want to choose the one that's more convenient
for your circumstance.
Usually, if your action is for a particular function type, defining it
using `Invoke()` should be easier; if your action can be used in
functions of different types (e.g. if you are defining
`Return(value)`), `MakePolymorphicAction()` is
easiest. Sometimes you want precise control on what types of
functions the action can be used in, and implementing
`ActionInterface` is the way to go here. See the implementation of
`Return()` in `include/gmock/gmock-actions.h` for an example.
## I'm using the set-argument-pointee action, and the compiler complains about "conflicting return type specified". What does it mean? ##
You got this error as Google Mock has no idea what value it should return
when the mock method is called. `SetArgPointee()` says what the
side effect is, but doesn't say what the return value should be. You
need `DoAll()` to chain a `SetArgPointee()` with a `Return()`.
See this [recipe](CookBook.md#mocking_side_effects) for more details and an example.
## My question is not in your FAQ! ##
If you cannot find the answer to your question in this FAQ, there are
some other resources you can use:
1. read other [documentation](Documentation.md),
1. search the mailing list [archive](http://groups.google.com/group/googlemock/topics),
1. ask it on [googlemock@googlegroups.com](mailto:googlemock@googlegroups.com) and someone will answer it (to prevent spam, we require you to join the [discussion group](http://groups.google.com/group/googlemock) before you can post.).
Please note that creating an issue in the
[issue tracker](https://github.com/google/googletest/issues) is _not_
a good way to get your answer, as it is monitored infrequently by a
very small number of people.
When asking a question, it's helpful to provide as much of the
following information as possible (people cannot help you if there's
not enough information in your question):
* the version (or the revision number if you check out from SVN directly) of Google Mock you use (Google Mock is under active development, so it's possible that your problem has been solved in a later version),
* your operating system,
* the name and version of your compiler,
* the complete command line flags you give to your compiler,
* the complete compiler error messages (if the question is about compilation),
* the _actual_ code (ideally, a minimal but complete program) that has the problem you encounter.

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@ -1,19 +0,0 @@
As any non-trivial software system, Google Mock has some known limitations and problems. We are working on improving it, and welcome your help! The follow is a list of issues we know about.
## README contains outdated information on Google Mock's compatibility with other testing frameworks ##
The `README` file in release 1.1.0 still says that Google Mock only works with Google Test. Actually, you can configure Google Mock to work with any testing framework you choose.
## Tests failing on machines using Power PC CPUs (e.g. some Macs) ##
`gmock_output_test` and `gmock-printers_test` are known to fail with Power PC CPUs. This is due to portability issues with these tests, and is not an indication of problems in Google Mock itself. You can safely ignore them.
## Failed to resolve libgtest.so.0 in tests when built against installed Google Test ##
This only applies if you manually built and installed Google Test, and then built a Google Mock against it (either explicitly, or because gtest-config was in your path post-install). In this situation, Libtool has a known issue with certain systems' ldconfig setup:
http://article.gmane.org/gmane.comp.sysutils.automake.general/9025
This requires a manual run of "sudo ldconfig" after the "sudo make install" for Google Test before any binaries which link against it can be executed. This isn't a bug in our install, but we should at least have documented it or hacked a work-around into our install. We should have one of these solutions in our next release.

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# Defining a Mock Class #
## Mocking a Normal Class ##
Given
```
class Foo {
...
virtual ~Foo();
virtual int GetSize() const = 0;
virtual string Describe(const char* name) = 0;
virtual string Describe(int type) = 0;
virtual bool Process(Bar elem, int count) = 0;
};
```
(note that `~Foo()` **must** be virtual) we can define its mock as
```
#include <gmock/gmock.h>
class MockFoo : public Foo {
MOCK_CONST_METHOD0(GetSize, int());
MOCK_METHOD1(Describe, string(const char* name));
MOCK_METHOD1(Describe, string(int type));
MOCK_METHOD2(Process, bool(Bar elem, int count));
};
```
To create a "nice" mock object which ignores all uninteresting calls,
or a "strict" mock object, which treats them as failures:
```
NiceMock<MockFoo> nice_foo; // The type is a subclass of MockFoo.
StrictMock<MockFoo> strict_foo; // The type is a subclass of MockFoo.
```
## Mocking a Class Template ##
To mock
```
template <typename Elem>
class StackInterface {
public:
...
virtual ~StackInterface();
virtual int GetSize() const = 0;
virtual void Push(const Elem& x) = 0;
};
```
(note that `~StackInterface()` **must** be virtual) just append `_T` to the `MOCK_*` macros:
```
template <typename Elem>
class MockStack : public StackInterface<Elem> {
public:
...
MOCK_CONST_METHOD0_T(GetSize, int());
MOCK_METHOD1_T(Push, void(const Elem& x));
};
```
## Specifying Calling Conventions for Mock Functions ##
If your mock function doesn't use the default calling convention, you
can specify it by appending `_WITH_CALLTYPE` to any of the macros
described in the previous two sections and supplying the calling
convention as the first argument to the macro. For example,
```
MOCK_METHOD_1_WITH_CALLTYPE(STDMETHODCALLTYPE, Foo, bool(int n));
MOCK_CONST_METHOD2_WITH_CALLTYPE(STDMETHODCALLTYPE, Bar, int(double x, double y));
```
where `STDMETHODCALLTYPE` is defined by `<objbase.h>` on Windows.
# Using Mocks in Tests #
The typical flow is:
1. Import the Google Mock names you need to use. All Google Mock names are in the `testing` namespace unless they are macros or otherwise noted.
1. Create the mock objects.
1. Optionally, set the default actions of the mock objects.
1. Set your expectations on the mock objects (How will they be called? What wil they do?).
1. Exercise code that uses the mock objects; if necessary, check the result using [Google Test](http://code.google.com/p/googletest/) assertions.
1. When a mock objects is destructed, Google Mock automatically verifies that all expectations on it have been satisfied.
Here is an example:
```
using ::testing::Return; // #1
TEST(BarTest, DoesThis) {
MockFoo foo; // #2
ON_CALL(foo, GetSize()) // #3
.WillByDefault(Return(1));
// ... other default actions ...
EXPECT_CALL(foo, Describe(5)) // #4
.Times(3)
.WillRepeatedly(Return("Category 5"));
// ... other expectations ...
EXPECT_EQ("good", MyProductionFunction(&foo)); // #5
} // #6
```
# Setting Default Actions #
Google Mock has a **built-in default action** for any function that
returns `void`, `bool`, a numeric value, or a pointer.
To customize the default action for functions with return type `T` globally:
```
using ::testing::DefaultValue;
DefaultValue<T>::Set(value); // Sets the default value to be returned.
// ... use the mocks ...
DefaultValue<T>::Clear(); // Resets the default value.
```
To customize the default action for a particular method, use `ON_CALL()`:
```
ON_CALL(mock_object, method(matchers))
.With(multi_argument_matcher) ?
.WillByDefault(action);
```
# Setting Expectations #
`EXPECT_CALL()` sets **expectations** on a mock method (How will it be
called? What will it do?):
```
EXPECT_CALL(mock_object, method(matchers))
.With(multi_argument_matcher) ?
.Times(cardinality) ?
.InSequence(sequences) *
.After(expectations) *
.WillOnce(action) *
.WillRepeatedly(action) ?
.RetiresOnSaturation(); ?
```
If `Times()` is omitted, the cardinality is assumed to be:
* `Times(1)` when there is neither `WillOnce()` nor `WillRepeatedly()`;
* `Times(n)` when there are `n WillOnce()`s but no `WillRepeatedly()`, where `n` >= 1; or
* `Times(AtLeast(n))` when there are `n WillOnce()`s and a `WillRepeatedly()`, where `n` >= 0.
A method with no `EXPECT_CALL()` is free to be invoked _any number of times_, and the default action will be taken each time.
# Matchers #
A **matcher** matches a _single_ argument. You can use it inside
`ON_CALL()` or `EXPECT_CALL()`, or use it to validate a value
directly:
| `EXPECT_THAT(value, matcher)` | Asserts that `value` matches `matcher`. |
|:------------------------------|:----------------------------------------|
| `ASSERT_THAT(value, matcher)` | The same as `EXPECT_THAT(value, matcher)`, except that it generates a **fatal** failure. |
Built-in matchers (where `argument` is the function argument) are
divided into several categories:
## Wildcard ##
|`_`|`argument` can be any value of the correct type.|
|:--|:-----------------------------------------------|
|`A<type>()` or `An<type>()`|`argument` can be any value of type `type`. |
## Generic Comparison ##
|`Eq(value)` or `value`|`argument == value`|
|:---------------------|:------------------|
|`Ge(value)` |`argument >= value`|
|`Gt(value)` |`argument > value` |
|`Le(value)` |`argument <= value`|
|`Lt(value)` |`argument < value` |
|`Ne(value)` |`argument != value`|
|`IsNull()` |`argument` is a `NULL` pointer (raw or smart).|
|`NotNull()` |`argument` is a non-null pointer (raw or smart).|
|`Ref(variable)` |`argument` is a reference to `variable`.|
|`TypedEq<type>(value)`|`argument` has type `type` and is equal to `value`. You may need to use this instead of `Eq(value)` when the mock function is overloaded.|
Except `Ref()`, these matchers make a _copy_ of `value` in case it's
modified or destructed later. If the compiler complains that `value`
doesn't have a public copy constructor, try wrap it in `ByRef()`,
e.g. `Eq(ByRef(non_copyable_value))`. If you do that, make sure
`non_copyable_value` is not changed afterwards, or the meaning of your
matcher will be changed.
## Floating-Point Matchers ##
|`DoubleEq(a_double)`|`argument` is a `double` value approximately equal to `a_double`, treating two NaNs as unequal.|
|:-------------------|:----------------------------------------------------------------------------------------------|
|`FloatEq(a_float)` |`argument` is a `float` value approximately equal to `a_float`, treating two NaNs as unequal. |
|`NanSensitiveDoubleEq(a_double)`|`argument` is a `double` value approximately equal to `a_double`, treating two NaNs as equal. |
|`NanSensitiveFloatEq(a_float)`|`argument` is a `float` value approximately equal to `a_float`, treating two NaNs as equal. |
The above matchers use ULP-based comparison (the same as used in
[Google Test](http://code.google.com/p/googletest/)). They
automatically pick a reasonable error bound based on the absolute
value of the expected value. `DoubleEq()` and `FloatEq()` conform to
the IEEE standard, which requires comparing two NaNs for equality to
return false. The `NanSensitive*` version instead treats two NaNs as
equal, which is often what a user wants.
## String Matchers ##
The `argument` can be either a C string or a C++ string object:
|`ContainsRegex(string)`|`argument` matches the given regular expression.|
|:----------------------|:-----------------------------------------------|
|`EndsWith(suffix)` |`argument` ends with string `suffix`. |
|`HasSubstr(string)` |`argument` contains `string` as a sub-string. |
|`MatchesRegex(string)` |`argument` matches the given regular expression with the match starting at the first character and ending at the last character.|
|`StartsWith(prefix)` |`argument` starts with string `prefix`. |
|`StrCaseEq(string)` |`argument` is equal to `string`, ignoring case. |
|`StrCaseNe(string)` |`argument` is not equal to `string`, ignoring case.|
|`StrEq(string)` |`argument` is equal to `string`. |
|`StrNe(string)` |`argument` is not equal to `string`. |
`StrCaseEq()`, `StrCaseNe()`, `StrEq()`, and `StrNe()` work for wide
strings as well.
## Container Matchers ##
Most STL-style containers support `==`, so you can use
`Eq(expected_container)` or simply `expected_container` to match a
container exactly. If you want to write the elements in-line,
match them more flexibly, or get more informative messages, you can use:
| `Contains(e)` | `argument` contains an element that matches `e`, which can be either a value or a matcher. |
|:--------------|:-------------------------------------------------------------------------------------------|
|`ElementsAre(e0, e1, ..., en)`|`argument` has `n + 1` elements, where the i-th element matches `ei`, which can be a value or a matcher. 0 to 10 arguments are allowed.|
|`ElementsAreArray(array)` or `ElementsAreArray(array, count)`|The same as `ElementsAre()` except that the expected element values/matchers come from a C-style array.|
| `ContainerEq(container)` | The same as `Eq(container)` except that the failure message also includes which elements are in one container but not the other. |
These matchers can also match:
1. a native array passed by reference (e.g. in `Foo(const int (&a)[5])`), and
1. an array passed as a pointer and a count (e.g. in `Bar(const T* buffer, int len)` -- see [Multi-argument Matchers](#Multiargument_Matchers.md)).
where the array may be multi-dimensional (i.e. its elements can be arrays).
## Member Matchers ##
|`Field(&class::field, m)`|`argument.field` (or `argument->field` when `argument` is a plain pointer) matches matcher `m`, where `argument` is an object of type _class_.|
|:------------------------|:---------------------------------------------------------------------------------------------------------------------------------------------|
|`Key(e)` |`argument.first` matches `e`, which can be either a value or a matcher. E.g. `Contains(Key(Le(5)))` can verify that a `map` contains a key `<= 5`.|
|`Pair(m1, m2)` |`argument` is an `std::pair` whose `first` field matches `m1` and `second` field matches `m2`. |
|`Property(&class::property, m)`|`argument.property()` (or `argument->property()` when `argument` is a plain pointer) matches matcher `m`, where `argument` is an object of type _class_.|
## Matching the Result of a Function or Functor ##
|`ResultOf(f, m)`|`f(argument)` matches matcher `m`, where `f` is a function or functor.|
|:---------------|:---------------------------------------------------------------------|
## Pointer Matchers ##
|`Pointee(m)`|`argument` (either a smart pointer or a raw pointer) points to a value that matches matcher `m`.|
|:-----------|:-----------------------------------------------------------------------------------------------|
## Multiargument Matchers ##
These are matchers on tuple types. They can be used in
`.With()`. The following can be used on functions with <i>two<br>
arguments</i> `x` and `y`:
|`Eq()`|`x == y`|
|:-----|:-------|
|`Ge()`|`x >= y`|
|`Gt()`|`x > y` |
|`Le()`|`x <= y`|
|`Lt()`|`x < y` |
|`Ne()`|`x != y`|
You can use the following selectors to pick a subset of the arguments
(or reorder them) to participate in the matching:
|`AllArgs(m)`|Equivalent to `m`. Useful as syntactic sugar in `.With(AllArgs(m))`.|
|:-----------|:-------------------------------------------------------------------|
|`Args<N1, N2, ..., Nk>(m)`|The `k` selected (using 0-based indices) arguments match `m`, e.g. `Args<1, 2>(Contains(5))`.|
## Composite Matchers ##
You can make a matcher from one or more other matchers:
|`AllOf(m1, m2, ..., mn)`|`argument` matches all of the matchers `m1` to `mn`.|
|:-----------------------|:---------------------------------------------------|
|`AnyOf(m1, m2, ..., mn)`|`argument` matches at least one of the matchers `m1` to `mn`.|
|`Not(m)` |`argument` doesn't match matcher `m`. |
## Adapters for Matchers ##
|`MatcherCast<T>(m)`|casts matcher `m` to type `Matcher<T>`.|
|:------------------|:--------------------------------------|
|`SafeMatcherCast<T>(m)`| [safely casts](V1_5_CookBook#Casting_Matchers.md) matcher `m` to type `Matcher<T>`. |
|`Truly(predicate)` |`predicate(argument)` returns something considered by C++ to be true, where `predicate` is a function or functor.|
## Matchers as Predicates ##
|`Matches(m)`|a unary functor that returns `true` if the argument matches `m`.|
|:-----------|:---------------------------------------------------------------|
|`ExplainMatchResult(m, value, result_listener)`|returns `true` if `value` matches `m`, explaining the result to `result_listener`.|
|`Value(x, m)`|returns `true` if the value of `x` matches `m`. |
## Defining Matchers ##
| `MATCHER(IsEven, "") { return (arg % 2) == 0; }` | Defines a matcher `IsEven()` to match an even number. |
|:-------------------------------------------------|:------------------------------------------------------|
| `MATCHER_P(IsDivisibleBy, n, "") { *result_listener << "where the remainder is " << (arg % n); return (arg % n) == 0; }` | Defines a macher `IsDivisibleBy(n)` to match a number divisible by `n`. |
| `MATCHER_P2(IsBetween, a, b, "is between %(a)s and %(b)s") { return a <= arg && arg <= b; }` | Defines a matcher `IsBetween(a, b)` to match a value in the range [`a`, `b`]. |
**Notes:**
1. The `MATCHER*` macros cannot be used inside a function or class.
1. The matcher body must be _purely functional_ (i.e. it cannot have any side effect, and the result must not depend on anything other than the value being matched and the matcher parameters).
1. You can use `PrintToString(x)` to convert a value `x` of any type to a string.
## Matchers as Test Assertions ##
|`ASSERT_THAT(expression, m)`|Generates a [fatal failure](http://code.google.com/p/googletest/wiki/GoogleTestPrimer#Assertions) if the value of `expression` doesn't match matcher `m`.|
|:---------------------------|:--------------------------------------------------------------------------------------------------------------------------------------------------------|
|`EXPECT_THAT(expression, m)`|Generates a non-fatal failure if the value of `expression` doesn't match matcher `m`. |
# Actions #
**Actions** specify what a mock function should do when invoked.
## Returning a Value ##
|`Return()`|Return from a `void` mock function.|
|:---------|:----------------------------------|
|`Return(value)`|Return `value`. |
|`ReturnArg<N>()`|Return the `N`-th (0-based) argument.|
|`ReturnNew<T>(a1, ..., ak)`|Return `new T(a1, ..., ak)`; a different object is created each time.|
|`ReturnNull()`|Return a null pointer. |
|`ReturnRef(variable)`|Return a reference to `variable`. |
## Side Effects ##
|`Assign(&variable, value)`|Assign `value` to variable.|
|:-------------------------|:--------------------------|
| `DeleteArg<N>()` | Delete the `N`-th (0-based) argument, which must be a pointer. |
| `SaveArg<N>(pointer)` | Save the `N`-th (0-based) argument to `*pointer`. |
| `SetArgReferee<N>(value)` | Assign value to the variable referenced by the `N`-th (0-based) argument. |
|`SetArgumentPointee<N>(value)`|Assign `value` to the variable pointed by the `N`-th (0-based) argument.|
|`SetArrayArgument<N>(first, last)`|Copies the elements in source range [`first`, `last`) to the array pointed to by the `N`-th (0-based) argument, which can be either a pointer or an iterator. The action does not take ownership of the elements in the source range.|
|`SetErrnoAndReturn(error, value)`|Set `errno` to `error` and return `value`.|
|`Throw(exception)` |Throws the given exception, which can be any copyable value. Available since v1.1.0.|
## Using a Function or a Functor as an Action ##
|`Invoke(f)`|Invoke `f` with the arguments passed to the mock function, where `f` can be a global/static function or a functor.|
|:----------|:-----------------------------------------------------------------------------------------------------------------|
|`Invoke(object_pointer, &class::method)`|Invoke the {method on the object with the arguments passed to the mock function. |
|`InvokeWithoutArgs(f)`|Invoke `f`, which can be a global/static function or a functor. `f` must take no arguments. |
|`InvokeWithoutArgs(object_pointer, &class::method)`|Invoke the method on the object, which takes no arguments. |
|`InvokeArgument<N>(arg1, arg2, ..., argk)`|Invoke the mock function's `N`-th (0-based) argument, which must be a function or a functor, with the `k` arguments.|
The return value of the invoked function is used as the return value
of the action.
When defining a function or functor to be used with `Invoke*()`, you can declare any unused parameters as `Unused`:
```
double Distance(Unused, double x, double y) { return sqrt(x*x + y*y); }
...
EXPECT_CALL(mock, Foo("Hi", _, _)).WillOnce(Invoke(Distance));
```
In `InvokeArgument<N>(...)`, if an argument needs to be passed by reference, wrap it inside `ByRef()`. For example,
```
InvokeArgument<2>(5, string("Hi"), ByRef(foo))
```
calls the mock function's #2 argument, passing to it `5` and `string("Hi")` by value, and `foo` by reference.
## Default Action ##
|`DoDefault()`|Do the default action (specified by `ON_CALL()` or the built-in one).|
|:------------|:--------------------------------------------------------------------|
**Note:** due to technical reasons, `DoDefault()` cannot be used inside a composite action - trying to do so will result in a run-time error.
## Composite Actions ##
|`DoAll(a1, a2, ..., an)`|Do all actions `a1` to `an` and return the result of `an` in each invocation. The first `n - 1` sub-actions must return void. |
|:-----------------------|:-----------------------------------------------------------------------------------------------------------------------------|
|`IgnoreResult(a)` |Perform action `a` and ignore its result. `a` must not return void. |
|`WithArg<N>(a)` |Pass the `N`-th (0-based) argument of the mock function to action `a` and perform it. |
|`WithArgs<N1, N2, ..., Nk>(a)`|Pass the selected (0-based) arguments of the mock function to action `a` and perform it. |
|`WithoutArgs(a)` |Perform action `a` without any arguments. |
## Defining Actions ##
| `ACTION(Sum) { return arg0 + arg1; }` | Defines an action `Sum()` to return the sum of the mock function's argument #0 and #1. |
|:--------------------------------------|:---------------------------------------------------------------------------------------|
| `ACTION_P(Plus, n) { return arg0 + n; }` | Defines an action `Plus(n)` to return the sum of the mock function's argument #0 and `n`. |
| `ACTION_Pk(Foo, p1, ..., pk) { statements; }` | Defines a parameterized action `Foo(p1, ..., pk)` to execute the given `statements`. |
The `ACTION*` macros cannot be used inside a function or class.
# Cardinalities #
These are used in `Times()` to specify how many times a mock function will be called:
|`AnyNumber()`|The function can be called any number of times.|
|:------------|:----------------------------------------------|
|`AtLeast(n)` |The call is expected at least `n` times. |
|`AtMost(n)` |The call is expected at most `n` times. |
|`Between(m, n)`|The call is expected between `m` and `n` (inclusive) times.|
|`Exactly(n) or n`|The call is expected exactly `n` times. In particular, the call should never happen when `n` is 0.|
# Expectation Order #
By default, the expectations can be matched in _any_ order. If some
or all expectations must be matched in a given order, there are two
ways to specify it. They can be used either independently or
together.
## The After Clause ##
```
using ::testing::Expectation;
...
Expectation init_x = EXPECT_CALL(foo, InitX());
Expectation init_y = EXPECT_CALL(foo, InitY());
EXPECT_CALL(foo, Bar())
.After(init_x, init_y);
```
says that `Bar()` can be called only after both `InitX()` and
`InitY()` have been called.
If you don't know how many pre-requisites an expectation has when you
write it, you can use an `ExpectationSet` to collect them:
```
using ::testing::ExpectationSet;
...
ExpectationSet all_inits;
for (int i = 0; i < element_count; i++) {
all_inits += EXPECT_CALL(foo, InitElement(i));
}
EXPECT_CALL(foo, Bar())
.After(all_inits);
```
says that `Bar()` can be called only after all elements have been
initialized (but we don't care about which elements get initialized
before the others).
Modifying an `ExpectationSet` after using it in an `.After()` doesn't
affect the meaning of the `.After()`.
## Sequences ##
When you have a long chain of sequential expectations, it's easier to
specify the order using **sequences**, which don't require you to given
each expectation in the chain a different name. <i>All expected<br>
calls</i> in the same sequence must occur in the order they are
specified.
```
using ::testing::Sequence;
Sequence s1, s2;
...
EXPECT_CALL(foo, Reset())
.InSequence(s1, s2)
.WillOnce(Return(true));
EXPECT_CALL(foo, GetSize())
.InSequence(s1)
.WillOnce(Return(1));
EXPECT_CALL(foo, Describe(A<const char*>()))
.InSequence(s2)
.WillOnce(Return("dummy"));
```
says that `Reset()` must be called before _both_ `GetSize()` _and_
`Describe()`, and the latter two can occur in any order.
To put many expectations in a sequence conveniently:
```
using ::testing::InSequence;
{
InSequence dummy;
EXPECT_CALL(...)...;
EXPECT_CALL(...)...;
...
EXPECT_CALL(...)...;
}
```
says that all expected calls in the scope of `dummy` must occur in
strict order. The name `dummy` is irrelevant.)
# Verifying and Resetting a Mock #
Google Mock will verify the expectations on a mock object when it is destructed, or you can do it earlier:
```
using ::testing::Mock;
...
// Verifies and removes the expectations on mock_obj;
// returns true iff successful.
Mock::VerifyAndClearExpectations(&mock_obj);
...
// Verifies and removes the expectations on mock_obj;
// also removes the default actions set by ON_CALL();
// returns true iff successful.
Mock::VerifyAndClear(&mock_obj);
```
You can also tell Google Mock that a mock object can be leaked and doesn't
need to be verified:
```
Mock::AllowLeak(&mock_obj);
```
# Mock Classes #
Google Mock defines a convenient mock class template
```
class MockFunction<R(A1, ..., An)> {
public:
MOCK_METHODn(Call, R(A1, ..., An));
};
```
See this [recipe](V1_5_CookBook#Using_Check_Points.md) for one application of it.
# Flags #
| `--gmock_catch_leaked_mocks=0` | Don't report leaked mock objects as failures. |
|:-------------------------------|:----------------------------------------------|
| `--gmock_verbose=LEVEL` | Sets the default verbosity level (`info`, `warning`, or `error`) of Google Mock messages. |

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This page lists all documentation wiki pages for Google Mock **version 1.5.0** -- **if you use a different version of Google Mock, please read the documentation for that specific version instead.**
* [ForDummies](V1_5_ForDummies.md) -- start here if you are new to Google Mock.
* [CheatSheet](V1_5_CheatSheet.md) -- a quick reference.
* [CookBook](V1_5_CookBook.md) -- recipes for doing various tasks using Google Mock.
* [FrequentlyAskedQuestions](V1_5_FrequentlyAskedQuestions.md) -- check here before asking a question on the mailing list.
To contribute code to Google Mock, read:
* DevGuide -- read this _before_ writing your first patch.
* [Pump Manual](http://code.google.com/p/googletest/wiki/PumpManual) -- how we generate some of Google Mock's source files.

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(**Note:** If you get compiler errors that you don't understand, be sure to consult [Google Mock Doctor](V1_5_FrequentlyAskedQuestions#How_am_I_supposed_to_make_sense_of_these_horrible_template_error.md).)
# What Is Google C++ Mocking Framework? #
When you write a prototype or test, often it's not feasible or wise to rely on real objects entirely. A **mock object** implements the same interface as a real object (so it can be used as one), but lets you specify at run time how it will be used and what it should do (which methods will be called? in which order? how many times? with what arguments? what will they return? etc).
**Note:** It is easy to confuse the term _fake objects_ with mock objects. Fakes and mocks actually mean very different things in the Test-Driven Development (TDD) community:
* **Fake** objects have working implementations, but usually take some shortcut (perhaps to make the operations less expensive), which makes them not suitable for production. An in-memory file system would be an example of a fake.
* **Mocks** are objects pre-programmed with _expectations_, which form a specification of the calls they are expected to receive.
If all this seems too abstract for you, don't worry - the most important thing to remember is that a mock allows you to check the _interaction_ between itself and code that uses it. The difference between fakes and mocks will become much clearer once you start to use mocks.
**Google C++ Mocking Framework** (or **Google Mock** for short) is a library (sometimes we also call it a "framework" to make it sound cool) for creating mock classes and using them. It does to C++ what [jMock](http://www.jmock.org/) and [EasyMock](http://www.easymock.org/) do to Java.
Using Google Mock involves three basic steps:
1. Use some simple macros to describe the interface you want to mock, and they will expand to the implementation of your mock class;
1. Create some mock objects and specify its expectations and behavior using an intuitive syntax;
1. Exercise code that uses the mock objects. Google Mock will catch any violation of the expectations as soon as it arises.
# Why Google Mock? #
While mock objects help you remove unnecessary dependencies in tests and make them fast and reliable, using mocks manually in C++ is _hard_:
* Someone has to implement the mocks. The job is usually tedious and error-prone. No wonder people go great distance to avoid it.
* The quality of those manually written mocks is a bit, uh, unpredictable. You may see some really polished ones, but you may also see some that were hacked up in a hurry and have all sorts of ad hoc restrictions.
* The knowledge you gained from using one mock doesn't transfer to the next.
In contrast, Java and Python programmers have some fine mock frameworks, which automate the creation of mocks. As a result, mocking is a proven effective technique and widely adopted practice in those communities. Having the right tool absolutely makes the difference.
Google Mock was built to help C++ programmers. It was inspired by [jMock](http://www.jmock.org/) and [EasyMock](http://www.easymock.org/), but designed with C++'s specifics in mind. It is your friend if any of the following problems is bothering you:
* You are stuck with a sub-optimal design and wish you had done more prototyping before it was too late, but prototyping in C++ is by no means "rapid".
* Your tests are slow as they depend on too many libraries or use expensive resources (e.g. a database).
* Your tests are brittle as some resources they use are unreliable (e.g. the network).
* You want to test how your code handles a failure (e.g. a file checksum error), but it's not easy to cause one.
* You need to make sure that your module interacts with other modules in the right way, but it's hard to observe the interaction; therefore you resort to observing the side effects at the end of the action, which is awkward at best.
* You want to "mock out" your dependencies, except that they don't have mock implementations yet; and, frankly, you aren't thrilled by some of those hand-written mocks.
We encourage you to use Google Mock as:
* a _design_ tool, for it lets you experiment with your interface design early and often. More iterations lead to better designs!
* a _testing_ tool to cut your tests' outbound dependencies and probe the interaction between your module and its collaborators.
# Getting Started #
Using Google Mock is easy! Inside your C++ source file, just #include `<gtest/gtest.h>` and `<gmock/gmock.h>`, and you are ready to go.
# A Case for Mock Turtles #
Let's look at an example. Suppose you are developing a graphics program that relies on a LOGO-like API for drawing. How would you test that it does the right thing? Well, you can run it and compare the screen with a golden screen snapshot, but let's admit it: tests like this are expensive to run and fragile (What if you just upgraded to a shiny new graphics card that has better anti-aliasing? Suddenly you have to update all your golden images.). It would be too painful if all your tests are like this. Fortunately, you learned about Dependency Injection and know the right thing to do: instead of having your application talk to the drawing API directly, wrap the API in an interface (say, `Turtle`) and code to that interface:
```
class Turtle {
...
virtual ~Turtle() {}
virtual void PenUp() = 0;
virtual void PenDown() = 0;
virtual void Forward(int distance) = 0;
virtual void Turn(int degrees) = 0;
virtual void GoTo(int x, int y) = 0;
virtual int GetX() const = 0;
virtual int GetY() const = 0;
};
```
(Note that the destructor of `Turtle` **must** be virtual, as is the case for **all** classes you intend to inherit from - otherwise the destructor of the derived class will not be called when you delete an object through a base pointer, and you'll get corrupted program states like memory leaks.)
You can control whether the turtle's movement will leave a trace using `PenUp()` and `PenDown()`, and control its movement using `Forward()`, `Turn()`, and `GoTo()`. Finally, `GetX()` and `GetY()` tell you the current position of the turtle.
Your program will normally use a real implementation of this interface. In tests, you can use a mock implementation instead. This allows you to easily check what drawing primitives your program is calling, with what arguments, and in which order. Tests written this way are much more robust (they won't break because your new machine does anti-aliasing differently), easier to read and maintain (the intent of a test is expressed in the code, not in some binary images), and run _much, much faster_.
# Writing the Mock Class #
If you are lucky, the mocks you need to use have already been implemented by some nice people. If, however, you find yourself in the position to write a mock class, relax - Google Mock turns this task into a fun game! (Well, almost.)
## How to Define It ##
Using the `Turtle` interface as example, here are the simple steps you need to follow:
1. Derive a class `MockTurtle` from `Turtle`.
1. Take a virtual function of `Turtle`. Count how many arguments it has.
1. In the `public:` section of the child class, write `MOCK_METHODn();` (or `MOCK_CONST_METHODn();` if you are mocking a `const` method), where `n` is the number of the arguments; if you counted wrong, shame on you, and a compiler error will tell you so.
1. Now comes the fun part: you take the function signature, cut-and-paste the _function name_ as the _first_ argument to the macro, and leave what's left as the _second_ argument (in case you're curious, this is the _type of the function_).
1. Repeat until all virtual functions you want to mock are done.
After the process, you should have something like:
```
#include <gmock/gmock.h> // Brings in Google Mock.
class MockTurtle : public Turtle {
public:
...
MOCK_METHOD0(PenUp, void());
MOCK_METHOD0(PenDown, void());
MOCK_METHOD1(Forward, void(int distance));
MOCK_METHOD1(Turn, void(int degrees));
MOCK_METHOD2(GoTo, void(int x, int y));
MOCK_CONST_METHOD0(GetX, int());
MOCK_CONST_METHOD0(GetY, int());
};
```
You don't need to define these mock methods somewhere else - the `MOCK_METHOD*` macros will generate the definitions for you. It's that simple! Once you get the hang of it, you can pump out mock classes faster than your source-control system can handle your check-ins.
**Tip:** If even this is too much work for you, you'll find the
`gmock_gen.py` tool in Google Mock's `scripts/generator/` directory (courtesy of the [cppclean](http://code.google.com/p/cppclean/) project) useful. This command-line
tool requires that you have Python 2.4 installed. You give it a C++ file and the name of an abstract class defined in it,
and it will print the definition of the mock class for you. Due to the
complexity of the C++ language, this script may not always work, but
it can be quite handy when it does. For more details, read the [user documentation](http://code.google.com/p/googlemock/source/browse/trunk/scripts/generator/README).
## Where to Put It ##
When you define a mock class, you need to decide where to put its definition. Some people put it in a `*_test.cc`. This is fine when the interface being mocked (say, `Foo`) is owned by the same person or team. Otherwise, when the owner of `Foo` changes it, your test could break. (You can't really expect `Foo`'s maintainer to fix every test that uses `Foo`, can you?)
So, the rule of thumb is: if you need to mock `Foo` and it's owned by others, define the mock class in `Foo`'s package (better, in a `testing` sub-package such that you can clearly separate production code and testing utilities), and put it in a `mock_foo.h`. Then everyone can reference `mock_foo.h` from their tests. If `Foo` ever changes, there is only one copy of `MockFoo` to change, and only tests that depend on the changed methods need to be fixed.
Another way to do it: you can introduce a thin layer `FooAdaptor` on top of `Foo` and code to this new interface. Since you own `FooAdaptor`, you can absorb changes in `Foo` much more easily. While this is more work initially, carefully choosing the adaptor interface can make your code easier to write and more readable (a net win in the long run), as you can choose `FooAdaptor` to fit your specific domain much better than `Foo` does.
# Using Mocks in Tests #
Once you have a mock class, using it is easy. The typical work flow is:
1. Import the Google Mock names from the `testing` namespace such that you can use them unqualified (You only have to do it once per file. Remember that namespaces are a good idea and good for your health.).
1. Create some mock objects.
1. Specify your expectations on them (How many times will a method be called? With what arguments? What should it do? etc.).
1. Exercise some code that uses the mocks; optionally, check the result using Google Test assertions. If a mock method is called more than expected or with wrong arguments, you'll get an error immediately.
1. When a mock is destructed, Google Mock will automatically check whether all expectations on it have been satisfied.
Here's an example:
```
#include "path/to/mock-turtle.h"
#include <gmock/gmock.h>
#include <gtest/gtest.h>
using ::testing::AtLeast; // #1
TEST(PainterTest, CanDrawSomething) {
MockTurtle turtle; // #2
EXPECT_CALL(turtle, PenDown()) // #3
.Times(AtLeast(1));
Painter painter(&turtle); // #4
EXPECT_TRUE(painter.DrawCircle(0, 0, 10));
} // #5
int main(int argc, char** argv) {
// The following line must be executed to initialize Google Mock
// (and Google Test) before running the tests.
::testing::InitGoogleMock(&argc, argv);
return RUN_ALL_TESTS();
}
```
As you might have guessed, this test checks that `PenDown()` is called at least once. If the `painter` object didn't call this method, your test will fail with a message like this:
```
path/to/my_test.cc:119: Failure
Actual function call count doesn't match this expectation:
Actually: never called;
Expected: called at least once.
```
**Tip 1:** If you run the test from an Emacs buffer, you can hit `<Enter>` on the line number displayed in the error message to jump right to the failed expectation.
**Tip 2:** If your mock objects are never deleted, the final verification won't happen. Therefore it's a good idea to use a heap leak checker in your tests when you allocate mocks on the heap.
**Important note:** Google Mock requires expectations to be set **before** the mock functions are called, otherwise the behavior is **undefined**. In particular, you mustn't interleave `EXPECT_CALL()`s and calls to the mock functions.
This means `EXPECT_CALL()` should be read as expecting that a call will occur _in the future_, not that a call has occurred. Why does Google Mock work like that? Well, specifying the expectation beforehand allows Google Mock to report a violation as soon as it arises, when the context (stack trace, etc) is still available. This makes debugging much easier.
Admittedly, this test is contrived and doesn't do much. You can easily achieve the same effect without using Google Mock. However, as we shall reveal soon, Google Mock allows you to do _much more_ with the mocks.
## Using Google Mock with Any Testing Framework ##
If you want to use something other than Google Test (e.g. [CppUnit](http://apps.sourceforge.net/mediawiki/cppunit/index.php?title=Main_Page) or
[CxxTest](http://cxxtest.tigris.org/)) as your testing framework, just change the `main()` function in the previous section to:
```
int main(int argc, char** argv) {
// The following line causes Google Mock to throw an exception on failure,
// which will be interpreted by your testing framework as a test failure.
::testing::GTEST_FLAG(throw_on_failure) = true;
::testing::InitGoogleMock(&argc, argv);
... whatever your testing framework requires ...
}
```
This approach has a catch: it makes Google Mock throw an exception
from a mock object's destructor sometimes. With some compilers, this
sometimes causes the test program to crash. You'll still be able to
notice that the test has failed, but it's not a graceful failure.
A better solution is to use Google Test's
[event listener API](http://code.google.com/p/googletest/wiki/GoogleTestAdvancedGuide#Extending_Google_Test_by_Handling_Test_Events)
to report a test failure to your testing framework properly. You'll need to
implement the `OnTestPartResult()` method of the event listener interface, but it
should be straightforward.
If this turns out to be too much work, we suggest that you stick with
Google Test, which works with Google Mock seamlessly (in fact, it is
technically part of Google Mock.). If there is a reason that you
cannot use Google Test, please let us know.
# Setting Expectations #
The key to using a mock object successfully is to set the _right expectations_ on it. If you set the expectations too strict, your test will fail as the result of unrelated changes. If you set them too loose, bugs can slip through. You want to do it just right such that your test can catch exactly the kind of bugs you intend it to catch. Google Mock provides the necessary means for you to do it "just right."
## General Syntax ##
In Google Mock we use the `EXPECT_CALL()` macro to set an expectation on a mock method. The general syntax is:
```
EXPECT_CALL(mock_object, method(matchers))
.Times(cardinality)
.WillOnce(action)
.WillRepeatedly(action);
```
The macro has two arguments: first the mock object, and then the method and its arguments. Note that the two are separated by a comma (`,`), not a period (`.`). (Why using a comma? The answer is that it was necessary for technical reasons.)
The macro can be followed by some optional _clauses_ that provide more information about the expectation. We'll discuss how each clause works in the coming sections.
This syntax is designed to make an expectation read like English. For example, you can probably guess that
```
using ::testing::Return;...
EXPECT_CALL(turtle, GetX())
.Times(5)
.WillOnce(Return(100))
.WillOnce(Return(150))
.WillRepeatedly(Return(200));
```
says that the `turtle` object's `GetX()` method will be called five times, it will return 100 the first time, 150 the second time, and then 200 every time. Some people like to call this style of syntax a Domain-Specific Language (DSL).
**Note:** Why do we use a macro to do this? It serves two purposes: first it makes expectations easily identifiable (either by `grep` or by a human reader), and second it allows Google Mock to include the source file location of a failed expectation in messages, making debugging easier.
## Matchers: What Arguments Do We Expect? ##
When a mock function takes arguments, we must specify what arguments we are expecting; for example:
```
// Expects the turtle to move forward by 100 units.
EXPECT_CALL(turtle, Forward(100));
```
Sometimes you may not want to be too specific (Remember that talk about tests being too rigid? Over specification leads to brittle tests and obscures the intent of tests. Therefore we encourage you to specify only what's necessary - no more, no less.). If you care to check that `Forward()` will be called but aren't interested in its actual argument, write `_` as the argument, which means "anything goes":
```
using ::testing::_;
...
// Expects the turtle to move forward.
EXPECT_CALL(turtle, Forward(_));
```
`_` is an instance of what we call **matchers**. A matcher is like a predicate and can test whether an argument is what we'd expect. You can use a matcher inside `EXPECT_CALL()` wherever a function argument is expected.
A list of built-in matchers can be found in the [CheatSheet](V1_5_CheatSheet.md). For example, here's the `Ge` (greater than or equal) matcher:
```
using ::testing::Ge;...
EXPECT_CALL(turtle, Forward(Ge(100)));
```
This checks that the turtle will be told to go forward by at least 100 units.
## Cardinalities: How Many Times Will It Be Called? ##
The first clause we can specify following an `EXPECT_CALL()` is `Times()`. We call its argument a **cardinality** as it tells _how many times_ the call should occur. It allows us to repeat an expectation many times without actually writing it as many times. More importantly, a cardinality can be "fuzzy", just like a matcher can be. This allows a user to express the intent of a test exactly.
An interesting special case is when we say `Times(0)`. You may have guessed - it means that the function shouldn't be called with the given arguments at all, and Google Mock will report a Google Test failure whenever the function is (wrongfully) called.
We've seen `AtLeast(n)` as an example of fuzzy cardinalities earlier. For the list of built-in cardinalities you can use, see the [CheatSheet](V1_5_CheatSheet.md).
The `Times()` clause can be omitted. **If you omit `Times()`, Google Mock will infer the cardinality for you.** The rules are easy to remember:
* If **neither** `WillOnce()` **nor** `WillRepeatedly()` is in the `EXPECT_CALL()`, the inferred cardinality is `Times(1)`.
* If there are `n WillOnce()`'s but **no** `WillRepeatedly()`, where `n` >= 1, the cardinality is `Times(n)`.
* If there are `n WillOnce()`'s and **one** `WillRepeatedly()`, where `n` >= 0, the cardinality is `Times(AtLeast(n))`.
**Quick quiz:** what do you think will happen if a function is expected to be called twice but actually called four times?
## Actions: What Should It Do? ##
Remember that a mock object doesn't really have a working implementation? We as users have to tell it what to do when a method is invoked. This is easy in Google Mock.
First, if the return type of a mock function is a built-in type or a pointer, the function has a **default action** (a `void` function will just return, a `bool` function will return `false`, and other functions will return 0). If you don't say anything, this behavior will be used.
Second, if a mock function doesn't have a default action, or the default action doesn't suit you, you can specify the action to be taken each time the expectation matches using a series of `WillOnce()` clauses followed by an optional `WillRepeatedly()`. For example,
```
using ::testing::Return;...
EXPECT_CALL(turtle, GetX())
.WillOnce(Return(100))
.WillOnce(Return(200))
.WillOnce(Return(300));
```
This says that `turtle.GetX()` will be called _exactly three times_ (Google Mock inferred this from how many `WillOnce()` clauses we've written, since we didn't explicitly write `Times()`), and will return 100, 200, and 300 respectively.
```
using ::testing::Return;...
EXPECT_CALL(turtle, GetY())
.WillOnce(Return(100))
.WillOnce(Return(200))
.WillRepeatedly(Return(300));
```
says that `turtle.GetY()` will be called _at least twice_ (Google Mock knows this as we've written two `WillOnce()` clauses and a `WillRepeatedly()` while having no explicit `Times()`), will return 100 the first time, 200 the second time, and 300 from the third time on.
Of course, if you explicitly write a `Times()`, Google Mock will not try to infer the cardinality itself. What if the number you specified is larger than there are `WillOnce()` clauses? Well, after all `WillOnce()`s are used up, Google Mock will do the _default_ action for the function every time (unless, of course, you have a `WillRepeatedly()`.).
What can we do inside `WillOnce()` besides `Return()`? You can return a reference using `ReturnRef(variable)`, or invoke a pre-defined function, among [others](V1_5_CheatSheet#Actions.md).
**Important note:** The `EXPECT_CALL()` statement evaluates the action clause only once, even though the action may be performed many times. Therefore you must be careful about side effects. The following may not do what you want:
```
int n = 100;
EXPECT_CALL(turtle, GetX())
.Times(4)
.WillOnce(Return(n++));
```
Instead of returning 100, 101, 102, ..., consecutively, this mock function will always return 100 as `n++` is only evaluated once. Similarly, `Return(new Foo)` will create a new `Foo` object when the `EXPECT_CALL()` is executed, and will return the same pointer every time. If you want the side effect to happen every time, you need to define a custom action, which we'll teach in the [CookBook](V1_5_CookBook.md).
Time for another quiz! What do you think the following means?
```
using ::testing::Return;...
EXPECT_CALL(turtle, GetY())
.Times(4)
.WillOnce(Return(100));
```
Obviously `turtle.GetY()` is expected to be called four times. But if you think it will return 100 every time, think twice! Remember that one `WillOnce()` clause will be consumed each time the function is invoked and the default action will be taken afterwards. So the right answer is that `turtle.GetY()` will return 100 the first time, but **return 0 from the second time on**, as returning 0 is the default action for `int` functions.
## Using Multiple Expectations ##
So far we've only shown examples where you have a single expectation. More realistically, you're going to specify expectations on multiple mock methods, which may be from multiple mock objects.
By default, when a mock method is invoked, Google Mock will search the expectations in the **reverse order** they are defined, and stop when an active expectation that matches the arguments is found (you can think of it as "newer rules override older ones."). If the matching expectation cannot take any more calls, you will get an upper-bound-violated failure. Here's an example:
```
using ::testing::_;...
EXPECT_CALL(turtle, Forward(_)); // #1
EXPECT_CALL(turtle, Forward(10)) // #2
.Times(2);
```
If `Forward(10)` is called three times in a row, the third time it will be an error, as the last matching expectation (#2) has been saturated. If, however, the third `Forward(10)` call is replaced by `Forward(20)`, then it would be OK, as now #1 will be the matching expectation.
**Side note:** Why does Google Mock search for a match in the _reverse_ order of the expectations? The reason is that this allows a user to set up the default expectations in a mock object's constructor or the test fixture's set-up phase and then customize the mock by writing more specific expectations in the test body. So, if you have two expectations on the same method, you want to put the one with more specific matchers **after** the other, or the more specific rule would be shadowed by the more general one that comes after it.
## Ordered vs Unordered Calls ##
By default, an expectation can match a call even though an earlier expectation hasn't been satisfied. In other words, the calls don't have to occur in the order the expectations are specified.
Sometimes, you may want all the expected calls to occur in a strict order. To say this in Google Mock is easy:
```
using ::testing::InSequence;...
TEST(FooTest, DrawsLineSegment) {
...
{
InSequence dummy;
EXPECT_CALL(turtle, PenDown());
EXPECT_CALL(turtle, Forward(100));
EXPECT_CALL(turtle, PenUp());
}
Foo();
}
```
By creating an object of type `InSequence`, all expectations in its scope are put into a _sequence_ and have to occur _sequentially_. Since we are just relying on the constructor and destructor of this object to do the actual work, its name is really irrelevant.
In this example, we test that `Foo()` calls the three expected functions in the order as written. If a call is made out-of-order, it will be an error.
(What if you care about the relative order of some of the calls, but not all of them? Can you specify an arbitrary partial order? The answer is ... yes! If you are impatient, the details can be found in the [CookBook](V1_5_CookBook.md).)
## All Expectations Are Sticky (Unless Said Otherwise) ##
Now let's do a quick quiz to see how well you can use this mock stuff already. How would you test that the turtle is asked to go to the origin _exactly twice_ (you want to ignore any other instructions it receives)?
After you've come up with your answer, take a look at ours and compare notes (solve it yourself first - don't cheat!):
```
using ::testing::_;...
EXPECT_CALL(turtle, GoTo(_, _)) // #1
.Times(AnyNumber());
EXPECT_CALL(turtle, GoTo(0, 0)) // #2
.Times(2);
```
Suppose `turtle.GoTo(0, 0)` is called three times. In the third time, Google Mock will see that the arguments match expectation #2 (remember that we always pick the last matching expectation). Now, since we said that there should be only two such calls, Google Mock will report an error immediately. This is basically what we've told you in the "Using Multiple Expectations" section above.
This example shows that **expectations in Google Mock are "sticky" by default**, in the sense that they remain active even after we have reached their invocation upper bounds. This is an important rule to remember, as it affects the meaning of the spec, and is **different** to how it's done in many other mocking frameworks (Why'd we do that? Because we think our rule makes the common cases easier to express and understand.).
Simple? Let's see if you've really understood it: what does the following code say?
```
using ::testing::Return;
...
for (int i = n; i > 0; i--) {
EXPECT_CALL(turtle, GetX())
.WillOnce(Return(10*i));
}
```
If you think it says that `turtle.GetX()` will be called `n` times and will return 10, 20, 30, ..., consecutively, think twice! The problem is that, as we said, expectations are sticky. So, the second time `turtle.GetX()` is called, the last (latest) `EXPECT_CALL()` statement will match, and will immediately lead to an "upper bound exceeded" error - this piece of code is not very useful!
One correct way of saying that `turtle.GetX()` will return 10, 20, 30, ..., is to explicitly say that the expectations are _not_ sticky. In other words, they should _retire_ as soon as they are saturated:
```
using ::testing::Return;
...
for (int i = n; i > 0; i--) {
EXPECT_CALL(turtle, GetX())
.WillOnce(Return(10*i))
.RetiresOnSaturation();
}
```
And, there's a better way to do it: in this case, we expect the calls to occur in a specific order, and we line up the actions to match the order. Since the order is important here, we should make it explicit using a sequence:
```
using ::testing::InSequence;
using ::testing::Return;
...
{
InSequence s;
for (int i = 1; i <= n; i++) {
EXPECT_CALL(turtle, GetX())
.WillOnce(Return(10*i))
.RetiresOnSaturation();
}
}
```
By the way, the other situation where an expectation may _not_ be sticky is when it's in a sequence - as soon as another expectation that comes after it in the sequence has been used, it automatically retires (and will never be used to match any call).
## Uninteresting Calls ##
A mock object may have many methods, and not all of them are that interesting. For example, in some tests we may not care about how many times `GetX()` and `GetY()` get called.
In Google Mock, if you are not interested in a method, just don't say anything about it. If a call to this method occurs, you'll see a warning in the test output, but it won't be a failure.
# What Now? #
Congratulations! You've learned enough about Google Mock to start using it. Now, you might want to join the [googlemock](http://groups.google.com/group/googlemock) discussion group and actually write some tests using Google Mock - it will be fun. Hey, it may even be addictive - you've been warned.
Then, if you feel like increasing your mock quotient, you should move on to the [CookBook](V1_5_CookBook.md). You can learn many advanced features of Google Mock there -- and advance your level of enjoyment and testing bliss.

View File

@ -1,624 +0,0 @@
Please send your questions to the
[googlemock](http://groups.google.com/group/googlemock) discussion
group. If you need help with compiler errors, make sure you have
tried [Google Mock Doctor](#How_am_I_supposed_to_make_sense_of_these_horrible_template_error.md) first.
## I wrote some matchers. After I upgraded to a new version of Google Mock, they no longer compile. What's going on? ##
After version 1.4.0 of Google Mock was released, we had an idea on how
to make it easier to write matchers that can generate informative
messages efficiently. We experimented with this idea and liked what
we saw. Therefore we decided to implement it.
Unfortunately, this means that if you have defined your own matchers
by implementing `MatcherInterface` or using `MakePolymorphicMatcher()`,
your definitions will no longer compile. Matchers defined using the
`MATCHER*` family of macros are not affected.
Sorry for the hassle if your matchers are affected. We believe it's
in everyone's long-term interest to make this change sooner than
later. Fortunately, it's usually not hard to migrate an existing
matcher to the new API. Here's what you need to do:
If you wrote your matcher like this:
```
// Old matcher definition that doesn't work with the latest
// Google Mock.
using ::testing::MatcherInterface;
...
class MyWonderfulMatcher : public MatcherInterface<MyType> {
public:
...
virtual bool Matches(MyType value) const {
// Returns true if value matches.
return value.GetFoo() > 5;
}
...
};
```
you'll need to change it to:
```
// New matcher definition that works with the latest Google Mock.
using ::testing::MatcherInterface;
using ::testing::MatchResultListener;
...
class MyWonderfulMatcher : public MatcherInterface<MyType> {
public:
...
virtual bool MatchAndExplain(MyType value,
MatchResultListener* listener) const {
// Returns true if value matches.
return value.GetFoo() > 5;
}
...
};
```
(i.e. rename `Matches()` to `MatchAndExplain()` and give it a second
argument of type `MatchResultListener*`.)
If you were also using `ExplainMatchResultTo()` to improve the matcher
message:
```
// Old matcher definition that doesn't work with the lastest
// Google Mock.
using ::testing::MatcherInterface;
...
class MyWonderfulMatcher : public MatcherInterface<MyType> {
public:
...
virtual bool Matches(MyType value) const {
// Returns true if value matches.
return value.GetFoo() > 5;
}
virtual void ExplainMatchResultTo(MyType value,
::std::ostream* os) const {
// Prints some helpful information to os to help
// a user understand why value matches (or doesn't match).
*os << "the Foo property is " << value.GetFoo();
}
...
};
```
you should move the logic of `ExplainMatchResultTo()` into
`MatchAndExplain()`, using the `MatchResultListener` argument where
the `::std::ostream` was used:
```
// New matcher definition that works with the latest Google Mock.
using ::testing::MatcherInterface;
using ::testing::MatchResultListener;
...
class MyWonderfulMatcher : public MatcherInterface<MyType> {
public:
...
virtual bool MatchAndExplain(MyType value,
MatchResultListener* listener) const {
// Returns true if value matches.
*listener << "the Foo property is " << value.GetFoo();
return value.GetFoo() > 5;
}
...
};
```
If your matcher is defined using `MakePolymorphicMatcher()`:
```
// Old matcher definition that doesn't work with the latest
// Google Mock.
using ::testing::MakePolymorphicMatcher;
...
class MyGreatMatcher {
public:
...
bool Matches(MyType value) const {
// Returns true if value matches.
return value.GetBar() < 42;
}
...
};
... MakePolymorphicMatcher(MyGreatMatcher()) ...
```
you should rename the `Matches()` method to `MatchAndExplain()` and
add a `MatchResultListener*` argument (the same as what you need to do
for matchers defined by implementing `MatcherInterface`):
```
// New matcher definition that works with the latest Google Mock.
using ::testing::MakePolymorphicMatcher;
using ::testing::MatchResultListener;
...
class MyGreatMatcher {
public:
...
bool MatchAndExplain(MyType value,
MatchResultListener* listener) const {
// Returns true if value matches.
return value.GetBar() < 42;
}
...
};
... MakePolymorphicMatcher(MyGreatMatcher()) ...
```
If your polymorphic matcher uses `ExplainMatchResultTo()` for better
failure messages:
```
// Old matcher definition that doesn't work with the latest
// Google Mock.
using ::testing::MakePolymorphicMatcher;
...
class MyGreatMatcher {
public:
...
bool Matches(MyType value) const {
// Returns true if value matches.
return value.GetBar() < 42;
}
...
};
void ExplainMatchResultTo(const MyGreatMatcher& matcher,
MyType value,
::std::ostream* os) {
// Prints some helpful information to os to help
// a user understand why value matches (or doesn't match).
*os << "the Bar property is " << value.GetBar();
}
... MakePolymorphicMatcher(MyGreatMatcher()) ...
```
you'll need to move the logic inside `ExplainMatchResultTo()` to
`MatchAndExplain()`:
```
// New matcher definition that works with the latest Google Mock.
using ::testing::MakePolymorphicMatcher;
using ::testing::MatchResultListener;
...
class MyGreatMatcher {
public:
...
bool MatchAndExplain(MyType value,
MatchResultListener* listener) const {
// Returns true if value matches.
*listener << "the Bar property is " << value.GetBar();
return value.GetBar() < 42;
}
...
};
... MakePolymorphicMatcher(MyGreatMatcher()) ...
```
For more information, you can read these
[two](V1_5_CookBook#Writing_New_Monomorphic_Matchers.md)
[recipes](V1_5_CookBook#Writing_New_Polymorphic_Matchers.md)
from the cookbook. As always, you
are welcome to post questions on `googlemock@googlegroups.com` if you
need any help.
## When using Google Mock, do I have to use Google Test as the testing framework? I have my favorite testing framework and don't want to switch. ##
Google Mock works out of the box with Google Test. However, it's easy
to configure it to work with any testing framework of your choice.
[Here](V1_5_ForDummies#Using_Google_Mock_with_Any_Testing_Framework.md) is how.
## How am I supposed to make sense of these horrible template errors? ##
If you are confused by the compiler errors gcc threw at you,
try consulting the _Google Mock Doctor_ tool first. What it does is to
scan stdin for gcc error messages, and spit out diagnoses on the
problems (we call them diseases) your code has.
To "install", run command:
```
alias gmd='<path to googlemock>/scripts/gmock_doctor.py'
```
To use it, do:
```
<your-favorite-build-command> <your-test> 2>&1 | gmd
```
For example:
```
make my_test 2>&1 | gmd
```
Or you can run `gmd` and copy-n-paste gcc's error messages to it.
## Can I mock a variadic function? ##
You cannot mock a variadic function (i.e. a function taking ellipsis
(`...`) arguments) directly in Google Mock.
The problem is that in general, there is _no way_ for a mock object to
know how many arguments are passed to the variadic method, and what
the arguments' types are. Only the _author of the base class_ knows
the protocol, and we cannot look into his head.
Therefore, to mock such a function, the _user_ must teach the mock
object how to figure out the number of arguments and their types. One
way to do it is to provide overloaded versions of the function.
Ellipsis arguments are inherited from C and not really a C++ feature.
They are unsafe to use and don't work with arguments that have
constructors or destructors. Therefore we recommend to avoid them in
C++ as much as possible.
## MSVC gives me warning C4301 or C4373 when I define a mock method with a const parameter. Why? ##
If you compile this using Microsoft Visual C++ 2005 SP1:
```
class Foo {
...
virtual void Bar(const int i) = 0;
};
class MockFoo : public Foo {
...
MOCK_METHOD1(Bar, void(const int i));
};
```
You may get the following warning:
```
warning C4301: 'MockFoo::Bar': overriding virtual function only differs from 'Foo::Bar' by const/volatile qualifier
```
This is a MSVC bug. The same code compiles fine with gcc ,for
example. If you use Visual C++ 2008 SP1, you would get the warning:
```
warning C4373: 'MockFoo::Bar': virtual function overrides 'Foo::Bar', previous versions of the compiler did not override when parameters only differed by const/volatile qualifiers
```
In C++, if you _declare_ a function with a `const` parameter, the
`const` modifier is _ignored_. Therefore, the `Foo` base class above
is equivalent to:
```
class Foo {
...
virtual void Bar(int i) = 0; // int or const int? Makes no difference.
};
```
In fact, you can _declare_ Bar() with an `int` parameter, and _define_
it with a `const int` parameter. The compiler will still match them
up.
Since making a parameter `const` is meaningless in the method
_declaration_, we recommend to remove it in both `Foo` and `MockFoo`.
That should workaround the VC bug.
Note that we are talking about the _top-level_ `const` modifier here.
If the function parameter is passed by pointer or reference, declaring
the _pointee_ or _referee_ as `const` is still meaningful. For
example, the following two declarations are _not_ equivalent:
```
void Bar(int* p); // Neither p nor *p is const.
void Bar(const int* p); // p is not const, but *p is.
```
## I have a huge mock class, and Microsoft Visual C++ runs out of memory when compiling it. What can I do? ##
We've noticed that when the `/clr` compiler flag is used, Visual C++
uses 5~6 times as much memory when compiling a mock class. We suggest
to avoid `/clr` when compiling native C++ mocks.
## I can't figure out why Google Mock thinks my expectations are not satisfied. What should I do? ##
You might want to run your test with
`--gmock_verbose=info`. This flag lets Google Mock print a trace
of every mock function call it receives. By studying the trace,
you'll gain insights on why the expectations you set are not met.
## How can I assert that a function is NEVER called? ##
```
EXPECT_CALL(foo, Bar(_))
.Times(0);
```
## I have a failed test where Google Mock tells me TWICE that a particular expectation is not satisfied. Isn't this redundant? ##
When Google Mock detects a failure, it prints relevant information
(the mock function arguments, the state of relevant expectations, and
etc) to help the user debug. If another failure is detected, Google
Mock will do the same, including printing the state of relevant
expectations.
Sometimes an expectation's state didn't change between two failures,
and you'll see the same description of the state twice. They are
however _not_ redundant, as they refer to _different points in time_.
The fact they are the same _is_ interesting information.
## I get a heap check failure when using a mock object, but using a real object is fine. What can be wrong? ##
Does the class (hopefully a pure interface) you are mocking have a
virtual destructor?
Whenever you derive from a base class, make sure its destructor is
virtual. Otherwise Bad Things will happen. Consider the following
code:
```
class Base {
public:
// Not virtual, but should be.
~Base() { ... }
...
};
class Derived : public Base {
public:
...
private:
std::string value_;
};
...
Base* p = new Derived;
...
delete p; // Surprise! ~Base() will be called, but ~Derived() will not
// - value_ is leaked.
```
By changing `~Base()` to virtual, `~Derived()` will be correctly
called when `delete p` is executed, and the heap checker
will be happy.
## The "newer expectations override older ones" rule makes writing expectations awkward. Why does Google Mock do that? ##
When people complain about this, often they are referring to code like:
```
// foo.Bar() should be called twice, return 1 the first time, and return
// 2 the second time. However, I have to write the expectations in the
// reverse order. This sucks big time!!!
EXPECT_CALL(foo, Bar())
.WillOnce(Return(2))
.RetiresOnSaturation();
EXPECT_CALL(foo, Bar())
.WillOnce(Return(1))
.RetiresOnSaturation();
```
The problem is that they didn't pick the **best** way to express the test's
intent.
By default, expectations don't have to be matched in _any_ particular
order. If you want them to match in a certain order, you need to be
explicit. This is Google Mock's (and jMock's) fundamental philosophy: it's
easy to accidentally over-specify your tests, and we want to make it
harder to do so.
There are two better ways to write the test spec. You could either
put the expectations in sequence:
```
// foo.Bar() should be called twice, return 1 the first time, and return
// 2 the second time. Using a sequence, we can write the expectations
// in their natural order.
{
InSequence s;
EXPECT_CALL(foo, Bar())
.WillOnce(Return(1))
.RetiresOnSaturation();
EXPECT_CALL(foo, Bar())
.WillOnce(Return(2))
.RetiresOnSaturation();
}
```
or you can put the sequence of actions in the same expectation:
```
// foo.Bar() should be called twice, return 1 the first time, and return
// 2 the second time.
EXPECT_CALL(foo, Bar())
.WillOnce(Return(1))
.WillOnce(Return(2))
.RetiresOnSaturation();
```
Back to the original questions: why does Google Mock search the
expectations (and `ON_CALL`s) from back to front? Because this
allows a user to set up a mock's behavior for the common case early
(e.g. in the mock's constructor or the test fixture's set-up phase)
and customize it with more specific rules later. If Google Mock
searches from front to back, this very useful pattern won't be
possible.
## Google Mock prints a warning when a function without EXPECT\_CALL is called, even if I have set its behavior using ON\_CALL. Would it be reasonable not to show the warning in this case? ##
When choosing between being neat and being safe, we lean toward the
latter. So the answer is that we think it's better to show the
warning.
Often people write `ON_CALL`s in the mock object's
constructor or `SetUp()`, as the default behavior rarely changes from
test to test. Then in the test body they set the expectations, which
are often different for each test. Having an `ON_CALL` in the set-up
part of a test doesn't mean that the calls are expected. If there's
no `EXPECT_CALL` and the method is called, it's possibly an error. If
we quietly let the call go through without notifying the user, bugs
may creep in unnoticed.
If, however, you are sure that the calls are OK, you can write
```
EXPECT_CALL(foo, Bar(_))
.WillRepeatedly(...);
```
instead of
```
ON_CALL(foo, Bar(_))
.WillByDefault(...);
```
This tells Google Mock that you do expect the calls and no warning should be
printed.
Also, you can control the verbosity using the `--gmock_verbose` flag.
If you find the output too noisy when debugging, just choose a less
verbose level.
## How can I delete the mock function's argument in an action? ##
If you find yourself needing to perform some action that's not
supported by Google Mock directly, remember that you can define your own
actions using
[MakeAction()](V1_5_CookBook#Writing_New_Actions.md) or
[MakePolymorphicAction()](V1_5_CookBook#Writing_New_Polymorphic_Actions.md),
or you can write a stub function and invoke it using
[Invoke()](V1_5_CookBook#Using_Functions_Methods_Functors.md).
## MOCK\_METHODn()'s second argument looks funny. Why don't you use the MOCK\_METHODn(Method, return\_type, arg\_1, ..., arg\_n) syntax? ##
What?! I think it's beautiful. :-)
While which syntax looks more natural is a subjective matter to some
extent, Google Mock's syntax was chosen for several practical advantages it
has.
Try to mock a function that takes a map as an argument:
```
virtual int GetSize(const map<int, std::string>& m);
```
Using the proposed syntax, it would be:
```
MOCK_METHOD1(GetSize, int, const map<int, std::string>& m);
```
Guess what? You'll get a compiler error as the compiler thinks that
`const map<int, std::string>& m` are **two**, not one, arguments. To work
around this you can use `typedef` to give the map type a name, but
that gets in the way of your work. Google Mock's syntax avoids this
problem as the function's argument types are protected inside a pair
of parentheses:
```
// This compiles fine.
MOCK_METHOD1(GetSize, int(const map<int, std::string>& m));
```
You still need a `typedef` if the return type contains an unprotected
comma, but that's much rarer.
Other advantages include:
1. `MOCK_METHOD1(Foo, int, bool)` can leave a reader wonder whether the method returns `int` or `bool`, while there won't be such confusion using Google Mock's syntax.
1. The way Google Mock describes a function type is nothing new, although many people may not be familiar with it. The same syntax was used in C, and the `function` library in `tr1` uses this syntax extensively. Since `tr1` will become a part of the new version of STL, we feel very comfortable to be consistent with it.
1. The function type syntax is also used in other parts of Google Mock's API (e.g. the action interface) in order to make the implementation tractable. A user needs to learn it anyway in order to utilize Google Mock's more advanced features. We'd as well stick to the same syntax in `MOCK_METHOD*`!
## My code calls a static/global function. Can I mock it? ##
You can, but you need to make some changes.
In general, if you find yourself needing to mock a static function,
it's a sign that your modules are too tightly coupled (and less
flexible, less reusable, less testable, etc). You are probably better
off defining a small interface and call the function through that
interface, which then can be easily mocked. It's a bit of work
initially, but usually pays for itself quickly.
This Google Testing Blog
[post](http://googletesting.blogspot.com/2008/06/defeat-static-cling.html)
says it excellently. Check it out.
## My mock object needs to do complex stuff. It's a lot of pain to specify the actions. Google Mock sucks! ##
I know it's not a question, but you get an answer for free any way. :-)
With Google Mock, you can create mocks in C++ easily. And people might be
tempted to use them everywhere. Sometimes they work great, and
sometimes you may find them, well, a pain to use. So, what's wrong in
the latter case?
When you write a test without using mocks, you exercise the code and
assert that it returns the correct value or that the system is in an
expected state. This is sometimes called "state-based testing".
Mocks are great for what some call "interaction-based" testing:
instead of checking the system state at the very end, mock objects
verify that they are invoked the right way and report an error as soon
as it arises, giving you a handle on the precise context in which the
error was triggered. This is often more effective and economical to
do than state-based testing.
If you are doing state-based testing and using a test double just to
simulate the real object, you are probably better off using a fake.
Using a mock in this case causes pain, as it's not a strong point for
mocks to perform complex actions. If you experience this and think
that mocks suck, you are just not using the right tool for your
problem. Or, you might be trying to solve the wrong problem. :-)
## I got a warning "Uninteresting function call encountered - default action taken.." Should I panic? ##
By all means, NO! It's just an FYI.
What it means is that you have a mock function, you haven't set any
expectations on it (by Google Mock's rule this means that you are not
interested in calls to this function and therefore it can be called
any number of times), and it is called. That's OK - you didn't say
it's not OK to call the function!
What if you actually meant to disallow this function to be called, but
forgot to write `EXPECT_CALL(foo, Bar()).Times(0)`? While
one can argue that it's the user's fault, Google Mock tries to be nice and
prints you a note.
So, when you see the message and believe that there shouldn't be any
uninteresting calls, you should investigate what's going on. To make
your life easier, Google Mock prints the function name and arguments
when an uninteresting call is encountered.
## I want to define a custom action. Should I use Invoke() or implement the action interface? ##
Either way is fine - you want to choose the one that's more convenient
for your circumstance.
Usually, if your action is for a particular function type, defining it
using `Invoke()` should be easier; if your action can be used in
functions of different types (e.g. if you are defining
`Return(value)`), `MakePolymorphicAction()` is
easiest. Sometimes you want precise control on what types of
functions the action can be used in, and implementing
`ActionInterface` is the way to go here. See the implementation of
`Return()` in `include/gmock/gmock-actions.h` for an example.
## I'm using the set-argument-pointee action, and the compiler complains about "conflicting return type specified". What does it mean? ##
You got this error as Google Mock has no idea what value it should return
when the mock method is called. `SetArgumentPointee()` says what the
side effect is, but doesn't say what the return value should be. You
need `DoAll()` to chain a `SetArgumentPointee()` with a `Return()`.
See this [recipe](V1_5_CookBook#Mocking_Side_Effects.md) for more details and an example.
## My question is not in your FAQ! ##
If you cannot find the answer to your question in this FAQ, there are
some other resources you can use:
1. read other [wiki pages](http://code.google.com/p/googlemock/w/list),
1. search the mailing list [archive](http://groups.google.com/group/googlemock/topics),
1. ask it on [googlemock@googlegroups.com](mailto:googlemock@googlegroups.com) and someone will answer it (to prevent spam, we require you to join the [discussion group](http://groups.google.com/group/googlemock) before you can post.).
Please note that creating an issue in the
[issue tracker](http://code.google.com/p/googlemock/issues/list) is _not_
a good way to get your answer, as it is monitored infrequently by a
very small number of people.
When asking a question, it's helpful to provide as much of the
following information as possible (people cannot help you if there's
not enough information in your question):
* the version (or the revision number if you check out from SVN directly) of Google Mock you use (Google Mock is under active development, so it's possible that your problem has been solved in a later version),
* your operating system,
* the name and version of your compiler,
* the complete command line flags you give to your compiler,
* the complete compiler error messages (if the question is about compilation),
* the _actual_ code (ideally, a minimal but complete program) that has the problem you encounter.

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@ -1,534 +0,0 @@
# Defining a Mock Class #
## Mocking a Normal Class ##
Given
```
class Foo {
...
virtual ~Foo();
virtual int GetSize() const = 0;
virtual string Describe(const char* name) = 0;
virtual string Describe(int type) = 0;
virtual bool Process(Bar elem, int count) = 0;
};
```
(note that `~Foo()` **must** be virtual) we can define its mock as
```
#include "gmock/gmock.h"
class MockFoo : public Foo {
MOCK_CONST_METHOD0(GetSize, int());
MOCK_METHOD1(Describe, string(const char* name));
MOCK_METHOD1(Describe, string(int type));
MOCK_METHOD2(Process, bool(Bar elem, int count));
};
```
To create a "nice" mock object which ignores all uninteresting calls,
or a "strict" mock object, which treats them as failures:
```
NiceMock<MockFoo> nice_foo; // The type is a subclass of MockFoo.
StrictMock<MockFoo> strict_foo; // The type is a subclass of MockFoo.
```
## Mocking a Class Template ##
To mock
```
template <typename Elem>
class StackInterface {
public:
...
virtual ~StackInterface();
virtual int GetSize() const = 0;
virtual void Push(const Elem& x) = 0;
};
```
(note that `~StackInterface()` **must** be virtual) just append `_T` to the `MOCK_*` macros:
```
template <typename Elem>
class MockStack : public StackInterface<Elem> {
public:
...
MOCK_CONST_METHOD0_T(GetSize, int());
MOCK_METHOD1_T(Push, void(const Elem& x));
};
```
## Specifying Calling Conventions for Mock Functions ##
If your mock function doesn't use the default calling convention, you
can specify it by appending `_WITH_CALLTYPE` to any of the macros
described in the previous two sections and supplying the calling
convention as the first argument to the macro. For example,
```
MOCK_METHOD_1_WITH_CALLTYPE(STDMETHODCALLTYPE, Foo, bool(int n));
MOCK_CONST_METHOD2_WITH_CALLTYPE(STDMETHODCALLTYPE, Bar, int(double x, double y));
```
where `STDMETHODCALLTYPE` is defined by `<objbase.h>` on Windows.
# Using Mocks in Tests #
The typical flow is:
1. Import the Google Mock names you need to use. All Google Mock names are in the `testing` namespace unless they are macros or otherwise noted.
1. Create the mock objects.
1. Optionally, set the default actions of the mock objects.
1. Set your expectations on the mock objects (How will they be called? What wil they do?).
1. Exercise code that uses the mock objects; if necessary, check the result using [Google Test](http://code.google.com/p/googletest/) assertions.
1. When a mock objects is destructed, Google Mock automatically verifies that all expectations on it have been satisfied.
Here is an example:
```
using ::testing::Return; // #1
TEST(BarTest, DoesThis) {
MockFoo foo; // #2
ON_CALL(foo, GetSize()) // #3
.WillByDefault(Return(1));
// ... other default actions ...
EXPECT_CALL(foo, Describe(5)) // #4
.Times(3)
.WillRepeatedly(Return("Category 5"));
// ... other expectations ...
EXPECT_EQ("good", MyProductionFunction(&foo)); // #5
} // #6
```
# Setting Default Actions #
Google Mock has a **built-in default action** for any function that
returns `void`, `bool`, a numeric value, or a pointer.
To customize the default action for functions with return type `T` globally:
```
using ::testing::DefaultValue;
DefaultValue<T>::Set(value); // Sets the default value to be returned.
// ... use the mocks ...
DefaultValue<T>::Clear(); // Resets the default value.
```
To customize the default action for a particular method, use `ON_CALL()`:
```
ON_CALL(mock_object, method(matchers))
.With(multi_argument_matcher) ?
.WillByDefault(action);
```
# Setting Expectations #
`EXPECT_CALL()` sets **expectations** on a mock method (How will it be
called? What will it do?):
```
EXPECT_CALL(mock_object, method(matchers))
.With(multi_argument_matcher) ?
.Times(cardinality) ?
.InSequence(sequences) *
.After(expectations) *
.WillOnce(action) *
.WillRepeatedly(action) ?
.RetiresOnSaturation(); ?
```
If `Times()` is omitted, the cardinality is assumed to be:
* `Times(1)` when there is neither `WillOnce()` nor `WillRepeatedly()`;
* `Times(n)` when there are `n WillOnce()`s but no `WillRepeatedly()`, where `n` >= 1; or
* `Times(AtLeast(n))` when there are `n WillOnce()`s and a `WillRepeatedly()`, where `n` >= 0.
A method with no `EXPECT_CALL()` is free to be invoked _any number of times_, and the default action will be taken each time.
# Matchers #
A **matcher** matches a _single_ argument. You can use it inside
`ON_CALL()` or `EXPECT_CALL()`, or use it to validate a value
directly:
| `EXPECT_THAT(value, matcher)` | Asserts that `value` matches `matcher`. |
|:------------------------------|:----------------------------------------|
| `ASSERT_THAT(value, matcher)` | The same as `EXPECT_THAT(value, matcher)`, except that it generates a **fatal** failure. |
Built-in matchers (where `argument` is the function argument) are
divided into several categories:
## Wildcard ##
|`_`|`argument` can be any value of the correct type.|
|:--|:-----------------------------------------------|
|`A<type>()` or `An<type>()`|`argument` can be any value of type `type`. |
## Generic Comparison ##
|`Eq(value)` or `value`|`argument == value`|
|:---------------------|:------------------|
|`Ge(value)` |`argument >= value`|
|`Gt(value)` |`argument > value` |
|`Le(value)` |`argument <= value`|
|`Lt(value)` |`argument < value` |
|`Ne(value)` |`argument != value`|
|`IsNull()` |`argument` is a `NULL` pointer (raw or smart).|
|`NotNull()` |`argument` is a non-null pointer (raw or smart).|
|`Ref(variable)` |`argument` is a reference to `variable`.|
|`TypedEq<type>(value)`|`argument` has type `type` and is equal to `value`. You may need to use this instead of `Eq(value)` when the mock function is overloaded.|
Except `Ref()`, these matchers make a _copy_ of `value` in case it's
modified or destructed later. If the compiler complains that `value`
doesn't have a public copy constructor, try wrap it in `ByRef()`,
e.g. `Eq(ByRef(non_copyable_value))`. If you do that, make sure
`non_copyable_value` is not changed afterwards, or the meaning of your
matcher will be changed.
## Floating-Point Matchers ##
|`DoubleEq(a_double)`|`argument` is a `double` value approximately equal to `a_double`, treating two NaNs as unequal.|
|:-------------------|:----------------------------------------------------------------------------------------------|
|`FloatEq(a_float)` |`argument` is a `float` value approximately equal to `a_float`, treating two NaNs as unequal. |
|`NanSensitiveDoubleEq(a_double)`|`argument` is a `double` value approximately equal to `a_double`, treating two NaNs as equal. |
|`NanSensitiveFloatEq(a_float)`|`argument` is a `float` value approximately equal to `a_float`, treating two NaNs as equal. |
These matchers use ULP-based comparison (the same as used in
[Google Test](http://code.google.com/p/googletest/)). They
automatically pick a reasonable error bound based on the absolute
value of the expected value. `DoubleEq()` and `FloatEq()` conform to
the IEEE standard, which requires comparing two NaNs for equality to
return false. The `NanSensitive*` version instead treats two NaNs as
equal, which is often what a user wants.
## String Matchers ##
The `argument` can be either a C string or a C++ string object:
|`ContainsRegex(string)`|`argument` matches the given regular expression.|
|:----------------------|:-----------------------------------------------|
|`EndsWith(suffix)` |`argument` ends with string `suffix`. |
|`HasSubstr(string)` |`argument` contains `string` as a sub-string. |
|`MatchesRegex(string)` |`argument` matches the given regular expression with the match starting at the first character and ending at the last character.|
|`StartsWith(prefix)` |`argument` starts with string `prefix`. |
|`StrCaseEq(string)` |`argument` is equal to `string`, ignoring case. |
|`StrCaseNe(string)` |`argument` is not equal to `string`, ignoring case.|
|`StrEq(string)` |`argument` is equal to `string`. |
|`StrNe(string)` |`argument` is not equal to `string`. |
`ContainsRegex()` and `MatchesRegex()` use the regular expression
syntax defined
[here](http://code.google.com/p/googletest/wiki/V1_6_AdvancedGuide#Regular_Expression_Syntax).
`StrCaseEq()`, `StrCaseNe()`, `StrEq()`, and `StrNe()` work for wide
strings as well.
## Container Matchers ##
Most STL-style containers support `==`, so you can use
`Eq(expected_container)` or simply `expected_container` to match a
container exactly. If you want to write the elements in-line,
match them more flexibly, or get more informative messages, you can use:
| `Contains(e)` | `argument` contains an element that matches `e`, which can be either a value or a matcher. |
|:--------------|:-------------------------------------------------------------------------------------------|
| `Each(e)` | `argument` is a container where _every_ element matches `e`, which can be either a value or a matcher. |
| `ElementsAre(e0, e1, ..., en)` | `argument` has `n + 1` elements, where the i-th element matches `ei`, which can be a value or a matcher. 0 to 10 arguments are allowed. |
| `ElementsAreArray(array)` or `ElementsAreArray(array, count)` | The same as `ElementsAre()` except that the expected element values/matchers come from a C-style array. |
| `ContainerEq(container)` | The same as `Eq(container)` except that the failure message also includes which elements are in one container but not the other. |
| `Pointwise(m, container)` | `argument` contains the same number of elements as in `container`, and for all i, (the i-th element in `argument`, the i-th element in `container`) match `m`, which is a matcher on 2-tuples. E.g. `Pointwise(Le(), upper_bounds)` verifies that each element in `argument` doesn't exceed the corresponding element in `upper_bounds`. |
These matchers can also match:
1. a native array passed by reference (e.g. in `Foo(const int (&a)[5])`), and
1. an array passed as a pointer and a count (e.g. in `Bar(const T* buffer, int len)` -- see [Multi-argument Matchers](#Multiargument_Matchers.md)).
where the array may be multi-dimensional (i.e. its elements can be arrays).
## Member Matchers ##
|`Field(&class::field, m)`|`argument.field` (or `argument->field` when `argument` is a plain pointer) matches matcher `m`, where `argument` is an object of type _class_.|
|:------------------------|:---------------------------------------------------------------------------------------------------------------------------------------------|
|`Key(e)` |`argument.first` matches `e`, which can be either a value or a matcher. E.g. `Contains(Key(Le(5)))` can verify that a `map` contains a key `<= 5`.|
|`Pair(m1, m2)` |`argument` is an `std::pair` whose `first` field matches `m1` and `second` field matches `m2`. |
|`Property(&class::property, m)`|`argument.property()` (or `argument->property()` when `argument` is a plain pointer) matches matcher `m`, where `argument` is an object of type _class_.|
## Matching the Result of a Function or Functor ##
|`ResultOf(f, m)`|`f(argument)` matches matcher `m`, where `f` is a function or functor.|
|:---------------|:---------------------------------------------------------------------|
## Pointer Matchers ##
|`Pointee(m)`|`argument` (either a smart pointer or a raw pointer) points to a value that matches matcher `m`.|
|:-----------|:-----------------------------------------------------------------------------------------------|
## Multiargument Matchers ##
Technically, all matchers match a _single_ value. A "multi-argument"
matcher is just one that matches a _tuple_. The following matchers can
be used to match a tuple `(x, y)`:
|`Eq()`|`x == y`|
|:-----|:-------|
|`Ge()`|`x >= y`|
|`Gt()`|`x > y` |
|`Le()`|`x <= y`|
|`Lt()`|`x < y` |
|`Ne()`|`x != y`|
You can use the following selectors to pick a subset of the arguments
(or reorder them) to participate in the matching:
|`AllArgs(m)`|Equivalent to `m`. Useful as syntactic sugar in `.With(AllArgs(m))`.|
|:-----------|:-------------------------------------------------------------------|
|`Args<N1, N2, ..., Nk>(m)`|The tuple of the `k` selected (using 0-based indices) arguments matches `m`, e.g. `Args<1, 2>(Eq())`.|
## Composite Matchers ##
You can make a matcher from one or more other matchers:
|`AllOf(m1, m2, ..., mn)`|`argument` matches all of the matchers `m1` to `mn`.|
|:-----------------------|:---------------------------------------------------|
|`AnyOf(m1, m2, ..., mn)`|`argument` matches at least one of the matchers `m1` to `mn`.|
|`Not(m)` |`argument` doesn't match matcher `m`. |
## Adapters for Matchers ##
|`MatcherCast<T>(m)`|casts matcher `m` to type `Matcher<T>`.|
|:------------------|:--------------------------------------|
|`SafeMatcherCast<T>(m)`| [safely casts](http://code.google.com/p/googlemock/wiki/V1_6_CookBook#Casting_Matchers) matcher `m` to type `Matcher<T>`. |
|`Truly(predicate)` |`predicate(argument)` returns something considered by C++ to be true, where `predicate` is a function or functor.|
## Matchers as Predicates ##
|`Matches(m)(value)`|evaluates to `true` if `value` matches `m`. You can use `Matches(m)` alone as a unary functor.|
|:------------------|:---------------------------------------------------------------------------------------------|
|`ExplainMatchResult(m, value, result_listener)`|evaluates to `true` if `value` matches `m`, explaining the result to `result_listener`. |
|`Value(value, m)` |evaluates to `true` if `value` matches `m`. |
## Defining Matchers ##
| `MATCHER(IsEven, "") { return (arg % 2) == 0; }` | Defines a matcher `IsEven()` to match an even number. |
|:-------------------------------------------------|:------------------------------------------------------|
| `MATCHER_P(IsDivisibleBy, n, "") { *result_listener << "where the remainder is " << (arg % n); return (arg % n) == 0; }` | Defines a macher `IsDivisibleBy(n)` to match a number divisible by `n`. |
| `MATCHER_P2(IsBetween, a, b, std::string(negation ? "isn't" : "is") + " between " + PrintToString(a) + " and " + PrintToString(b)) { return a <= arg && arg <= b; }` | Defines a matcher `IsBetween(a, b)` to match a value in the range [`a`, `b`]. |
**Notes:**
1. The `MATCHER*` macros cannot be used inside a function or class.
1. The matcher body must be _purely functional_ (i.e. it cannot have any side effect, and the result must not depend on anything other than the value being matched and the matcher parameters).
1. You can use `PrintToString(x)` to convert a value `x` of any type to a string.
## Matchers as Test Assertions ##
|`ASSERT_THAT(expression, m)`|Generates a [fatal failure](http://code.google.com/p/googletest/wiki/V1_6_Primer#Assertions) if the value of `expression` doesn't match matcher `m`.|
|:---------------------------|:---------------------------------------------------------------------------------------------------------------------------------------------------|
|`EXPECT_THAT(expression, m)`|Generates a non-fatal failure if the value of `expression` doesn't match matcher `m`. |
# Actions #
**Actions** specify what a mock function should do when invoked.
## Returning a Value ##
|`Return()`|Return from a `void` mock function.|
|:---------|:----------------------------------|
|`Return(value)`|Return `value`. If the type of `value` is different to the mock function's return type, `value` is converted to the latter type <i>at the time the expectation is set</i>, not when the action is executed.|
|`ReturnArg<N>()`|Return the `N`-th (0-based) argument.|
|`ReturnNew<T>(a1, ..., ak)`|Return `new T(a1, ..., ak)`; a different object is created each time.|
|`ReturnNull()`|Return a null pointer. |
|`ReturnPointee(ptr)`|Return the value pointed to by `ptr`.|
|`ReturnRef(variable)`|Return a reference to `variable`. |
|`ReturnRefOfCopy(value)`|Return a reference to a copy of `value`; the copy lives as long as the action.|
## Side Effects ##
|`Assign(&variable, value)`|Assign `value` to variable.|
|:-------------------------|:--------------------------|
| `DeleteArg<N>()` | Delete the `N`-th (0-based) argument, which must be a pointer. |
| `SaveArg<N>(pointer)` | Save the `N`-th (0-based) argument to `*pointer`. |
| `SaveArgPointee<N>(pointer)` | Save the value pointed to by the `N`-th (0-based) argument to `*pointer`. |
| `SetArgReferee<N>(value)` | Assign value to the variable referenced by the `N`-th (0-based) argument. |
|`SetArgPointee<N>(value)` |Assign `value` to the variable pointed by the `N`-th (0-based) argument.|
|`SetArgumentPointee<N>(value)`|Same as `SetArgPointee<N>(value)`. Deprecated. Will be removed in v1.7.0.|
|`SetArrayArgument<N>(first, last)`|Copies the elements in source range [`first`, `last`) to the array pointed to by the `N`-th (0-based) argument, which can be either a pointer or an iterator. The action does not take ownership of the elements in the source range.|
|`SetErrnoAndReturn(error, value)`|Set `errno` to `error` and return `value`.|
|`Throw(exception)` |Throws the given exception, which can be any copyable value. Available since v1.1.0.|
## Using a Function or a Functor as an Action ##
|`Invoke(f)`|Invoke `f` with the arguments passed to the mock function, where `f` can be a global/static function or a functor.|
|:----------|:-----------------------------------------------------------------------------------------------------------------|
|`Invoke(object_pointer, &class::method)`|Invoke the {method on the object with the arguments passed to the mock function. |
|`InvokeWithoutArgs(f)`|Invoke `f`, which can be a global/static function or a functor. `f` must take no arguments. |
|`InvokeWithoutArgs(object_pointer, &class::method)`|Invoke the method on the object, which takes no arguments. |
|`InvokeArgument<N>(arg1, arg2, ..., argk)`|Invoke the mock function's `N`-th (0-based) argument, which must be a function or a functor, with the `k` arguments.|
The return value of the invoked function is used as the return value
of the action.
When defining a function or functor to be used with `Invoke*()`, you can declare any unused parameters as `Unused`:
```
double Distance(Unused, double x, double y) { return sqrt(x*x + y*y); }
...
EXPECT_CALL(mock, Foo("Hi", _, _)).WillOnce(Invoke(Distance));
```
In `InvokeArgument<N>(...)`, if an argument needs to be passed by reference, wrap it inside `ByRef()`. For example,
```
InvokeArgument<2>(5, string("Hi"), ByRef(foo))
```
calls the mock function's #2 argument, passing to it `5` and `string("Hi")` by value, and `foo` by reference.
## Default Action ##
|`DoDefault()`|Do the default action (specified by `ON_CALL()` or the built-in one).|
|:------------|:--------------------------------------------------------------------|
**Note:** due to technical reasons, `DoDefault()` cannot be used inside a composite action - trying to do so will result in a run-time error.
## Composite Actions ##
|`DoAll(a1, a2, ..., an)`|Do all actions `a1` to `an` and return the result of `an` in each invocation. The first `n - 1` sub-actions must return void. |
|:-----------------------|:-----------------------------------------------------------------------------------------------------------------------------|
|`IgnoreResult(a)` |Perform action `a` and ignore its result. `a` must not return void. |
|`WithArg<N>(a)` |Pass the `N`-th (0-based) argument of the mock function to action `a` and perform it. |
|`WithArgs<N1, N2, ..., Nk>(a)`|Pass the selected (0-based) arguments of the mock function to action `a` and perform it. |
|`WithoutArgs(a)` |Perform action `a` without any arguments. |
## Defining Actions ##
| `ACTION(Sum) { return arg0 + arg1; }` | Defines an action `Sum()` to return the sum of the mock function's argument #0 and #1. |
|:--------------------------------------|:---------------------------------------------------------------------------------------|
| `ACTION_P(Plus, n) { return arg0 + n; }` | Defines an action `Plus(n)` to return the sum of the mock function's argument #0 and `n`. |
| `ACTION_Pk(Foo, p1, ..., pk) { statements; }` | Defines a parameterized action `Foo(p1, ..., pk)` to execute the given `statements`. |
The `ACTION*` macros cannot be used inside a function or class.
# Cardinalities #
These are used in `Times()` to specify how many times a mock function will be called:
|`AnyNumber()`|The function can be called any number of times.|
|:------------|:----------------------------------------------|
|`AtLeast(n)` |The call is expected at least `n` times. |
|`AtMost(n)` |The call is expected at most `n` times. |
|`Between(m, n)`|The call is expected between `m` and `n` (inclusive) times.|
|`Exactly(n) or n`|The call is expected exactly `n` times. In particular, the call should never happen when `n` is 0.|
# Expectation Order #
By default, the expectations can be matched in _any_ order. If some
or all expectations must be matched in a given order, there are two
ways to specify it. They can be used either independently or
together.
## The After Clause ##
```
using ::testing::Expectation;
...
Expectation init_x = EXPECT_CALL(foo, InitX());
Expectation init_y = EXPECT_CALL(foo, InitY());
EXPECT_CALL(foo, Bar())
.After(init_x, init_y);
```
says that `Bar()` can be called only after both `InitX()` and
`InitY()` have been called.
If you don't know how many pre-requisites an expectation has when you
write it, you can use an `ExpectationSet` to collect them:
```
using ::testing::ExpectationSet;
...
ExpectationSet all_inits;
for (int i = 0; i < element_count; i++) {
all_inits += EXPECT_CALL(foo, InitElement(i));
}
EXPECT_CALL(foo, Bar())
.After(all_inits);
```
says that `Bar()` can be called only after all elements have been
initialized (but we don't care about which elements get initialized
before the others).
Modifying an `ExpectationSet` after using it in an `.After()` doesn't
affect the meaning of the `.After()`.
## Sequences ##
When you have a long chain of sequential expectations, it's easier to
specify the order using **sequences**, which don't require you to given
each expectation in the chain a different name. <i>All expected<br>
calls</i> in the same sequence must occur in the order they are
specified.
```
using ::testing::Sequence;
Sequence s1, s2;
...
EXPECT_CALL(foo, Reset())
.InSequence(s1, s2)
.WillOnce(Return(true));
EXPECT_CALL(foo, GetSize())
.InSequence(s1)
.WillOnce(Return(1));
EXPECT_CALL(foo, Describe(A<const char*>()))
.InSequence(s2)
.WillOnce(Return("dummy"));
```
says that `Reset()` must be called before _both_ `GetSize()` _and_
`Describe()`, and the latter two can occur in any order.
To put many expectations in a sequence conveniently:
```
using ::testing::InSequence;
{
InSequence dummy;
EXPECT_CALL(...)...;
EXPECT_CALL(...)...;
...
EXPECT_CALL(...)...;
}
```
says that all expected calls in the scope of `dummy` must occur in
strict order. The name `dummy` is irrelevant.)
# Verifying and Resetting a Mock #
Google Mock will verify the expectations on a mock object when it is destructed, or you can do it earlier:
```
using ::testing::Mock;
...
// Verifies and removes the expectations on mock_obj;
// returns true iff successful.
Mock::VerifyAndClearExpectations(&mock_obj);
...
// Verifies and removes the expectations on mock_obj;
// also removes the default actions set by ON_CALL();
// returns true iff successful.
Mock::VerifyAndClear(&mock_obj);
```
You can also tell Google Mock that a mock object can be leaked and doesn't
need to be verified:
```
Mock::AllowLeak(&mock_obj);
```
# Mock Classes #
Google Mock defines a convenient mock class template
```
class MockFunction<R(A1, ..., An)> {
public:
MOCK_METHODn(Call, R(A1, ..., An));
};
```
See this [recipe](http://code.google.com/p/googlemock/wiki/V1_6_CookBook#Using_Check_Points) for one application of it.
# Flags #
| `--gmock_catch_leaked_mocks=0` | Don't report leaked mock objects as failures. |
|:-------------------------------|:----------------------------------------------|
| `--gmock_verbose=LEVEL` | Sets the default verbosity level (`info`, `warning`, or `error`) of Google Mock messages. |

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This page lists all documentation wiki pages for Google Mock **1.6**
- **if you use a released version of Google Mock, please read the documentation for that specific version instead.**
* [ForDummies](V1_6_ForDummies.md) -- start here if you are new to Google Mock.
* [CheatSheet](V1_6_CheatSheet.md) -- a quick reference.
* [CookBook](V1_6_CookBook.md) -- recipes for doing various tasks using Google Mock.
* [FrequentlyAskedQuestions](V1_6_FrequentlyAskedQuestions.md) -- check here before asking a question on the mailing list.
To contribute code to Google Mock, read:
* [DevGuide](DevGuide.md) -- read this _before_ writing your first patch.
* [Pump Manual](http://code.google.com/p/googletest/wiki/V1_6_PumpManual) -- how we generate some of Google Mock's source files.

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(**Note:** If you get compiler errors that you don't understand, be sure to consult [Google Mock Doctor](http://code.google.com/p/googlemock/wiki/V1_6_FrequentlyAskedQuestions#How_am_I_supposed_to_make_sense_of_these_horrible_template_error).)
# What Is Google C++ Mocking Framework? #
When you write a prototype or test, often it's not feasible or wise to rely on real objects entirely. A **mock object** implements the same interface as a real object (so it can be used as one), but lets you specify at run time how it will be used and what it should do (which methods will be called? in which order? how many times? with what arguments? what will they return? etc).
**Note:** It is easy to confuse the term _fake objects_ with mock objects. Fakes and mocks actually mean very different things in the Test-Driven Development (TDD) community:
* **Fake** objects have working implementations, but usually take some shortcut (perhaps to make the operations less expensive), which makes them not suitable for production. An in-memory file system would be an example of a fake.
* **Mocks** are objects pre-programmed with _expectations_, which form a specification of the calls they are expected to receive.
If all this seems too abstract for you, don't worry - the most important thing to remember is that a mock allows you to check the _interaction_ between itself and code that uses it. The difference between fakes and mocks will become much clearer once you start to use mocks.
**Google C++ Mocking Framework** (or **Google Mock** for short) is a library (sometimes we also call it a "framework" to make it sound cool) for creating mock classes and using them. It does to C++ what [jMock](http://www.jmock.org/) and [EasyMock](http://www.easymock.org/) do to Java.
Using Google Mock involves three basic steps:
1. Use some simple macros to describe the interface you want to mock, and they will expand to the implementation of your mock class;
1. Create some mock objects and specify its expectations and behavior using an intuitive syntax;
1. Exercise code that uses the mock objects. Google Mock will catch any violation of the expectations as soon as it arises.
# Why Google Mock? #
While mock objects help you remove unnecessary dependencies in tests and make them fast and reliable, using mocks manually in C++ is _hard_:
* Someone has to implement the mocks. The job is usually tedious and error-prone. No wonder people go great distance to avoid it.
* The quality of those manually written mocks is a bit, uh, unpredictable. You may see some really polished ones, but you may also see some that were hacked up in a hurry and have all sorts of ad hoc restrictions.
* The knowledge you gained from using one mock doesn't transfer to the next.
In contrast, Java and Python programmers have some fine mock frameworks, which automate the creation of mocks. As a result, mocking is a proven effective technique and widely adopted practice in those communities. Having the right tool absolutely makes the difference.
Google Mock was built to help C++ programmers. It was inspired by [jMock](http://www.jmock.org/) and [EasyMock](http://www.easymock.org/), but designed with C++'s specifics in mind. It is your friend if any of the following problems is bothering you:
* You are stuck with a sub-optimal design and wish you had done more prototyping before it was too late, but prototyping in C++ is by no means "rapid".
* Your tests are slow as they depend on too many libraries or use expensive resources (e.g. a database).
* Your tests are brittle as some resources they use are unreliable (e.g. the network).
* You want to test how your code handles a failure (e.g. a file checksum error), but it's not easy to cause one.
* You need to make sure that your module interacts with other modules in the right way, but it's hard to observe the interaction; therefore you resort to observing the side effects at the end of the action, which is awkward at best.
* You want to "mock out" your dependencies, except that they don't have mock implementations yet; and, frankly, you aren't thrilled by some of those hand-written mocks.
We encourage you to use Google Mock as:
* a _design_ tool, for it lets you experiment with your interface design early and often. More iterations lead to better designs!
* a _testing_ tool to cut your tests' outbound dependencies and probe the interaction between your module and its collaborators.
# Getting Started #
Using Google Mock is easy! Inside your C++ source file, just #include `"gtest/gtest.h"` and `"gmock/gmock.h"`, and you are ready to go.
# A Case for Mock Turtles #
Let's look at an example. Suppose you are developing a graphics program that relies on a LOGO-like API for drawing. How would you test that it does the right thing? Well, you can run it and compare the screen with a golden screen snapshot, but let's admit it: tests like this are expensive to run and fragile (What if you just upgraded to a shiny new graphics card that has better anti-aliasing? Suddenly you have to update all your golden images.). It would be too painful if all your tests are like this. Fortunately, you learned about Dependency Injection and know the right thing to do: instead of having your application talk to the drawing API directly, wrap the API in an interface (say, `Turtle`) and code to that interface:
```
class Turtle {
...
virtual ~Turtle() {}
virtual void PenUp() = 0;
virtual void PenDown() = 0;
virtual void Forward(int distance) = 0;
virtual void Turn(int degrees) = 0;
virtual void GoTo(int x, int y) = 0;
virtual int GetX() const = 0;
virtual int GetY() const = 0;
};
```
(Note that the destructor of `Turtle` **must** be virtual, as is the case for **all** classes you intend to inherit from - otherwise the destructor of the derived class will not be called when you delete an object through a base pointer, and you'll get corrupted program states like memory leaks.)
You can control whether the turtle's movement will leave a trace using `PenUp()` and `PenDown()`, and control its movement using `Forward()`, `Turn()`, and `GoTo()`. Finally, `GetX()` and `GetY()` tell you the current position of the turtle.
Your program will normally use a real implementation of this interface. In tests, you can use a mock implementation instead. This allows you to easily check what drawing primitives your program is calling, with what arguments, and in which order. Tests written this way are much more robust (they won't break because your new machine does anti-aliasing differently), easier to read and maintain (the intent of a test is expressed in the code, not in some binary images), and run _much, much faster_.
# Writing the Mock Class #
If you are lucky, the mocks you need to use have already been implemented by some nice people. If, however, you find yourself in the position to write a mock class, relax - Google Mock turns this task into a fun game! (Well, almost.)
## How to Define It ##
Using the `Turtle` interface as example, here are the simple steps you need to follow:
1. Derive a class `MockTurtle` from `Turtle`.
1. Take a _virtual_ function of `Turtle` (while it's possible to [mock non-virtual methods using templates](http://code.google.com/p/googlemock/wiki/V1_6_CookBook#Mocking_Nonvirtual_Methods), it's much more involved). Count how many arguments it has.
1. In the `public:` section of the child class, write `MOCK_METHODn();` (or `MOCK_CONST_METHODn();` if you are mocking a `const` method), where `n` is the number of the arguments; if you counted wrong, shame on you, and a compiler error will tell you so.
1. Now comes the fun part: you take the function signature, cut-and-paste the _function name_ as the _first_ argument to the macro, and leave what's left as the _second_ argument (in case you're curious, this is the _type of the function_).
1. Repeat until all virtual functions you want to mock are done.
After the process, you should have something like:
```
#include "gmock/gmock.h" // Brings in Google Mock.
class MockTurtle : public Turtle {
public:
...
MOCK_METHOD0(PenUp, void());
MOCK_METHOD0(PenDown, void());
MOCK_METHOD1(Forward, void(int distance));
MOCK_METHOD1(Turn, void(int degrees));
MOCK_METHOD2(GoTo, void(int x, int y));
MOCK_CONST_METHOD0(GetX, int());
MOCK_CONST_METHOD0(GetY, int());
};
```
You don't need to define these mock methods somewhere else - the `MOCK_METHOD*` macros will generate the definitions for you. It's that simple! Once you get the hang of it, you can pump out mock classes faster than your source-control system can handle your check-ins.
**Tip:** If even this is too much work for you, you'll find the
`gmock_gen.py` tool in Google Mock's `scripts/generator/` directory (courtesy of the [cppclean](http://code.google.com/p/cppclean/) project) useful. This command-line
tool requires that you have Python 2.4 installed. You give it a C++ file and the name of an abstract class defined in it,
and it will print the definition of the mock class for you. Due to the
complexity of the C++ language, this script may not always work, but
it can be quite handy when it does. For more details, read the [user documentation](http://code.google.com/p/googlemock/source/browse/trunk/scripts/generator/README).
## Where to Put It ##
When you define a mock class, you need to decide where to put its definition. Some people put it in a `*_test.cc`. This is fine when the interface being mocked (say, `Foo`) is owned by the same person or team. Otherwise, when the owner of `Foo` changes it, your test could break. (You can't really expect `Foo`'s maintainer to fix every test that uses `Foo`, can you?)
So, the rule of thumb is: if you need to mock `Foo` and it's owned by others, define the mock class in `Foo`'s package (better, in a `testing` sub-package such that you can clearly separate production code and testing utilities), and put it in a `mock_foo.h`. Then everyone can reference `mock_foo.h` from their tests. If `Foo` ever changes, there is only one copy of `MockFoo` to change, and only tests that depend on the changed methods need to be fixed.
Another way to do it: you can introduce a thin layer `FooAdaptor` on top of `Foo` and code to this new interface. Since you own `FooAdaptor`, you can absorb changes in `Foo` much more easily. While this is more work initially, carefully choosing the adaptor interface can make your code easier to write and more readable (a net win in the long run), as you can choose `FooAdaptor` to fit your specific domain much better than `Foo` does.
# Using Mocks in Tests #
Once you have a mock class, using it is easy. The typical work flow is:
1. Import the Google Mock names from the `testing` namespace such that you can use them unqualified (You only have to do it once per file. Remember that namespaces are a good idea and good for your health.).
1. Create some mock objects.
1. Specify your expectations on them (How many times will a method be called? With what arguments? What should it do? etc.).
1. Exercise some code that uses the mocks; optionally, check the result using Google Test assertions. If a mock method is called more than expected or with wrong arguments, you'll get an error immediately.
1. When a mock is destructed, Google Mock will automatically check whether all expectations on it have been satisfied.
Here's an example:
```
#include "path/to/mock-turtle.h"
#include "gmock/gmock.h"
#include "gtest/gtest.h"
using ::testing::AtLeast; // #1
TEST(PainterTest, CanDrawSomething) {
MockTurtle turtle; // #2
EXPECT_CALL(turtle, PenDown()) // #3
.Times(AtLeast(1));
Painter painter(&turtle); // #4
EXPECT_TRUE(painter.DrawCircle(0, 0, 10));
} // #5
int main(int argc, char** argv) {
// The following line must be executed to initialize Google Mock
// (and Google Test) before running the tests.
::testing::InitGoogleMock(&argc, argv);
return RUN_ALL_TESTS();
}
```
As you might have guessed, this test checks that `PenDown()` is called at least once. If the `painter` object didn't call this method, your test will fail with a message like this:
```
path/to/my_test.cc:119: Failure
Actual function call count doesn't match this expectation:
Actually: never called;
Expected: called at least once.
```
**Tip 1:** If you run the test from an Emacs buffer, you can hit `<Enter>` on the line number displayed in the error message to jump right to the failed expectation.
**Tip 2:** If your mock objects are never deleted, the final verification won't happen. Therefore it's a good idea to use a heap leak checker in your tests when you allocate mocks on the heap.
**Important note:** Google Mock requires expectations to be set **before** the mock functions are called, otherwise the behavior is **undefined**. In particular, you mustn't interleave `EXPECT_CALL()`s and calls to the mock functions.
This means `EXPECT_CALL()` should be read as expecting that a call will occur _in the future_, not that a call has occurred. Why does Google Mock work like that? Well, specifying the expectation beforehand allows Google Mock to report a violation as soon as it arises, when the context (stack trace, etc) is still available. This makes debugging much easier.
Admittedly, this test is contrived and doesn't do much. You can easily achieve the same effect without using Google Mock. However, as we shall reveal soon, Google Mock allows you to do _much more_ with the mocks.
## Using Google Mock with Any Testing Framework ##
If you want to use something other than Google Test (e.g. [CppUnit](http://apps.sourceforge.net/mediawiki/cppunit/index.php?title=Main_Page) or
[CxxTest](http://cxxtest.tigris.org/)) as your testing framework, just change the `main()` function in the previous section to:
```
int main(int argc, char** argv) {
// The following line causes Google Mock to throw an exception on failure,
// which will be interpreted by your testing framework as a test failure.
::testing::GTEST_FLAG(throw_on_failure) = true;
::testing::InitGoogleMock(&argc, argv);
... whatever your testing framework requires ...
}
```
This approach has a catch: it makes Google Mock throw an exception
from a mock object's destructor sometimes. With some compilers, this
sometimes causes the test program to crash. You'll still be able to
notice that the test has failed, but it's not a graceful failure.
A better solution is to use Google Test's
[event listener API](http://code.google.com/p/googletest/wiki/V1_6_AdvancedGuide#Extending_Google_Test_by_Handling_Test_Events)
to report a test failure to your testing framework properly. You'll need to
implement the `OnTestPartResult()` method of the event listener interface, but it
should be straightforward.
If this turns out to be too much work, we suggest that you stick with
Google Test, which works with Google Mock seamlessly (in fact, it is
technically part of Google Mock.). If there is a reason that you
cannot use Google Test, please let us know.
# Setting Expectations #
The key to using a mock object successfully is to set the _right expectations_ on it. If you set the expectations too strict, your test will fail as the result of unrelated changes. If you set them too loose, bugs can slip through. You want to do it just right such that your test can catch exactly the kind of bugs you intend it to catch. Google Mock provides the necessary means for you to do it "just right."
## General Syntax ##
In Google Mock we use the `EXPECT_CALL()` macro to set an expectation on a mock method. The general syntax is:
```
EXPECT_CALL(mock_object, method(matchers))
.Times(cardinality)
.WillOnce(action)
.WillRepeatedly(action);
```
The macro has two arguments: first the mock object, and then the method and its arguments. Note that the two are separated by a comma (`,`), not a period (`.`). (Why using a comma? The answer is that it was necessary for technical reasons.)
The macro can be followed by some optional _clauses_ that provide more information about the expectation. We'll discuss how each clause works in the coming sections.
This syntax is designed to make an expectation read like English. For example, you can probably guess that
```
using ::testing::Return;...
EXPECT_CALL(turtle, GetX())
.Times(5)
.WillOnce(Return(100))
.WillOnce(Return(150))
.WillRepeatedly(Return(200));
```
says that the `turtle` object's `GetX()` method will be called five times, it will return 100 the first time, 150 the second time, and then 200 every time. Some people like to call this style of syntax a Domain-Specific Language (DSL).
**Note:** Why do we use a macro to do this? It serves two purposes: first it makes expectations easily identifiable (either by `grep` or by a human reader), and second it allows Google Mock to include the source file location of a failed expectation in messages, making debugging easier.
## Matchers: What Arguments Do We Expect? ##
When a mock function takes arguments, we must specify what arguments we are expecting; for example:
```
// Expects the turtle to move forward by 100 units.
EXPECT_CALL(turtle, Forward(100));
```
Sometimes you may not want to be too specific (Remember that talk about tests being too rigid? Over specification leads to brittle tests and obscures the intent of tests. Therefore we encourage you to specify only what's necessary - no more, no less.). If you care to check that `Forward()` will be called but aren't interested in its actual argument, write `_` as the argument, which means "anything goes":
```
using ::testing::_;
...
// Expects the turtle to move forward.
EXPECT_CALL(turtle, Forward(_));
```
`_` is an instance of what we call **matchers**. A matcher is like a predicate and can test whether an argument is what we'd expect. You can use a matcher inside `EXPECT_CALL()` wherever a function argument is expected.
A list of built-in matchers can be found in the [CheatSheet](V1_6_CheatSheet.md). For example, here's the `Ge` (greater than or equal) matcher:
```
using ::testing::Ge;...
EXPECT_CALL(turtle, Forward(Ge(100)));
```
This checks that the turtle will be told to go forward by at least 100 units.
## Cardinalities: How Many Times Will It Be Called? ##
The first clause we can specify following an `EXPECT_CALL()` is `Times()`. We call its argument a **cardinality** as it tells _how many times_ the call should occur. It allows us to repeat an expectation many times without actually writing it as many times. More importantly, a cardinality can be "fuzzy", just like a matcher can be. This allows a user to express the intent of a test exactly.
An interesting special case is when we say `Times(0)`. You may have guessed - it means that the function shouldn't be called with the given arguments at all, and Google Mock will report a Google Test failure whenever the function is (wrongfully) called.
We've seen `AtLeast(n)` as an example of fuzzy cardinalities earlier. For the list of built-in cardinalities you can use, see the [CheatSheet](V1_6_CheatSheet.md).
The `Times()` clause can be omitted. **If you omit `Times()`, Google Mock will infer the cardinality for you.** The rules are easy to remember:
* If **neither** `WillOnce()` **nor** `WillRepeatedly()` is in the `EXPECT_CALL()`, the inferred cardinality is `Times(1)`.
* If there are `n WillOnce()`'s but **no** `WillRepeatedly()`, where `n` >= 1, the cardinality is `Times(n)`.
* If there are `n WillOnce()`'s and **one** `WillRepeatedly()`, where `n` >= 0, the cardinality is `Times(AtLeast(n))`.
**Quick quiz:** what do you think will happen if a function is expected to be called twice but actually called four times?
## Actions: What Should It Do? ##
Remember that a mock object doesn't really have a working implementation? We as users have to tell it what to do when a method is invoked. This is easy in Google Mock.
First, if the return type of a mock function is a built-in type or a pointer, the function has a **default action** (a `void` function will just return, a `bool` function will return `false`, and other functions will return 0). If you don't say anything, this behavior will be used.
Second, if a mock function doesn't have a default action, or the default action doesn't suit you, you can specify the action to be taken each time the expectation matches using a series of `WillOnce()` clauses followed by an optional `WillRepeatedly()`. For example,
```
using ::testing::Return;...
EXPECT_CALL(turtle, GetX())
.WillOnce(Return(100))
.WillOnce(Return(200))
.WillOnce(Return(300));
```
This says that `turtle.GetX()` will be called _exactly three times_ (Google Mock inferred this from how many `WillOnce()` clauses we've written, since we didn't explicitly write `Times()`), and will return 100, 200, and 300 respectively.
```
using ::testing::Return;...
EXPECT_CALL(turtle, GetY())
.WillOnce(Return(100))
.WillOnce(Return(200))
.WillRepeatedly(Return(300));
```
says that `turtle.GetY()` will be called _at least twice_ (Google Mock knows this as we've written two `WillOnce()` clauses and a `WillRepeatedly()` while having no explicit `Times()`), will return 100 the first time, 200 the second time, and 300 from the third time on.
Of course, if you explicitly write a `Times()`, Google Mock will not try to infer the cardinality itself. What if the number you specified is larger than there are `WillOnce()` clauses? Well, after all `WillOnce()`s are used up, Google Mock will do the _default_ action for the function every time (unless, of course, you have a `WillRepeatedly()`.).
What can we do inside `WillOnce()` besides `Return()`? You can return a reference using `ReturnRef(variable)`, or invoke a pre-defined function, among [others](http://code.google.com/p/googlemock/wiki/V1_6_CheatSheet#Actions).
**Important note:** The `EXPECT_CALL()` statement evaluates the action clause only once, even though the action may be performed many times. Therefore you must be careful about side effects. The following may not do what you want:
```
int n = 100;
EXPECT_CALL(turtle, GetX())
.Times(4)
.WillRepeatedly(Return(n++));
```
Instead of returning 100, 101, 102, ..., consecutively, this mock function will always return 100 as `n++` is only evaluated once. Similarly, `Return(new Foo)` will create a new `Foo` object when the `EXPECT_CALL()` is executed, and will return the same pointer every time. If you want the side effect to happen every time, you need to define a custom action, which we'll teach in the [CookBook](V1_6_CookBook.md).
Time for another quiz! What do you think the following means?
```
using ::testing::Return;...
EXPECT_CALL(turtle, GetY())
.Times(4)
.WillOnce(Return(100));
```
Obviously `turtle.GetY()` is expected to be called four times. But if you think it will return 100 every time, think twice! Remember that one `WillOnce()` clause will be consumed each time the function is invoked and the default action will be taken afterwards. So the right answer is that `turtle.GetY()` will return 100 the first time, but **return 0 from the second time on**, as returning 0 is the default action for `int` functions.
## Using Multiple Expectations ##
So far we've only shown examples where you have a single expectation. More realistically, you're going to specify expectations on multiple mock methods, which may be from multiple mock objects.
By default, when a mock method is invoked, Google Mock will search the expectations in the **reverse order** they are defined, and stop when an active expectation that matches the arguments is found (you can think of it as "newer rules override older ones."). If the matching expectation cannot take any more calls, you will get an upper-bound-violated failure. Here's an example:
```
using ::testing::_;...
EXPECT_CALL(turtle, Forward(_)); // #1
EXPECT_CALL(turtle, Forward(10)) // #2
.Times(2);
```
If `Forward(10)` is called three times in a row, the third time it will be an error, as the last matching expectation (#2) has been saturated. If, however, the third `Forward(10)` call is replaced by `Forward(20)`, then it would be OK, as now #1 will be the matching expectation.
**Side note:** Why does Google Mock search for a match in the _reverse_ order of the expectations? The reason is that this allows a user to set up the default expectations in a mock object's constructor or the test fixture's set-up phase and then customize the mock by writing more specific expectations in the test body. So, if you have two expectations on the same method, you want to put the one with more specific matchers **after** the other, or the more specific rule would be shadowed by the more general one that comes after it.
## Ordered vs Unordered Calls ##
By default, an expectation can match a call even though an earlier expectation hasn't been satisfied. In other words, the calls don't have to occur in the order the expectations are specified.
Sometimes, you may want all the expected calls to occur in a strict order. To say this in Google Mock is easy:
```
using ::testing::InSequence;...
TEST(FooTest, DrawsLineSegment) {
...
{
InSequence dummy;
EXPECT_CALL(turtle, PenDown());
EXPECT_CALL(turtle, Forward(100));
EXPECT_CALL(turtle, PenUp());
}
Foo();
}
```
By creating an object of type `InSequence`, all expectations in its scope are put into a _sequence_ and have to occur _sequentially_. Since we are just relying on the constructor and destructor of this object to do the actual work, its name is really irrelevant.
In this example, we test that `Foo()` calls the three expected functions in the order as written. If a call is made out-of-order, it will be an error.
(What if you care about the relative order of some of the calls, but not all of them? Can you specify an arbitrary partial order? The answer is ... yes! If you are impatient, the details can be found in the [CookBook](V1_6_CookBook.md).)
## All Expectations Are Sticky (Unless Said Otherwise) ##
Now let's do a quick quiz to see how well you can use this mock stuff already. How would you test that the turtle is asked to go to the origin _exactly twice_ (you want to ignore any other instructions it receives)?
After you've come up with your answer, take a look at ours and compare notes (solve it yourself first - don't cheat!):
```
using ::testing::_;...
EXPECT_CALL(turtle, GoTo(_, _)) // #1
.Times(AnyNumber());
EXPECT_CALL(turtle, GoTo(0, 0)) // #2
.Times(2);
```
Suppose `turtle.GoTo(0, 0)` is called three times. In the third time, Google Mock will see that the arguments match expectation #2 (remember that we always pick the last matching expectation). Now, since we said that there should be only two such calls, Google Mock will report an error immediately. This is basically what we've told you in the "Using Multiple Expectations" section above.
This example shows that **expectations in Google Mock are "sticky" by default**, in the sense that they remain active even after we have reached their invocation upper bounds. This is an important rule to remember, as it affects the meaning of the spec, and is **different** to how it's done in many other mocking frameworks (Why'd we do that? Because we think our rule makes the common cases easier to express and understand.).
Simple? Let's see if you've really understood it: what does the following code say?
```
using ::testing::Return;
...
for (int i = n; i > 0; i--) {
EXPECT_CALL(turtle, GetX())
.WillOnce(Return(10*i));
}
```
If you think it says that `turtle.GetX()` will be called `n` times and will return 10, 20, 30, ..., consecutively, think twice! The problem is that, as we said, expectations are sticky. So, the second time `turtle.GetX()` is called, the last (latest) `EXPECT_CALL()` statement will match, and will immediately lead to an "upper bound exceeded" error - this piece of code is not very useful!
One correct way of saying that `turtle.GetX()` will return 10, 20, 30, ..., is to explicitly say that the expectations are _not_ sticky. In other words, they should _retire_ as soon as they are saturated:
```
using ::testing::Return;
...
for (int i = n; i > 0; i--) {
EXPECT_CALL(turtle, GetX())
.WillOnce(Return(10*i))
.RetiresOnSaturation();
}
```
And, there's a better way to do it: in this case, we expect the calls to occur in a specific order, and we line up the actions to match the order. Since the order is important here, we should make it explicit using a sequence:
```
using ::testing::InSequence;
using ::testing::Return;
...
{
InSequence s;
for (int i = 1; i <= n; i++) {
EXPECT_CALL(turtle, GetX())
.WillOnce(Return(10*i))
.RetiresOnSaturation();
}
}
```
By the way, the other situation where an expectation may _not_ be sticky is when it's in a sequence - as soon as another expectation that comes after it in the sequence has been used, it automatically retires (and will never be used to match any call).
## Uninteresting Calls ##
A mock object may have many methods, and not all of them are that interesting. For example, in some tests we may not care about how many times `GetX()` and `GetY()` get called.
In Google Mock, if you are not interested in a method, just don't say anything about it. If a call to this method occurs, you'll see a warning in the test output, but it won't be a failure.
# What Now? #
Congratulations! You've learned enough about Google Mock to start using it. Now, you might want to join the [googlemock](http://groups.google.com/group/googlemock) discussion group and actually write some tests using Google Mock - it will be fun. Hey, it may even be addictive - you've been warned.
Then, if you feel like increasing your mock quotient, you should move on to the [CookBook](V1_6_CookBook.md). You can learn many advanced features of Google Mock there -- and advance your level of enjoyment and testing bliss.

View File

@ -1,628 +0,0 @@
Please send your questions to the
[googlemock](http://groups.google.com/group/googlemock) discussion
group. If you need help with compiler errors, make sure you have
tried [Google Mock Doctor](#How_am_I_supposed_to_make_sense_of_these_horrible_template_error.md) first.
## When I call a method on my mock object, the method for the real object is invoked instead. What's the problem? ##
In order for a method to be mocked, it must be _virtual_, unless you use the [high-perf dependency injection technique](http://code.google.com/p/googlemock/wiki/V1_6_CookBook#Mocking_Nonvirtual_Methods).
## I wrote some matchers. After I upgraded to a new version of Google Mock, they no longer compile. What's going on? ##
After version 1.4.0 of Google Mock was released, we had an idea on how
to make it easier to write matchers that can generate informative
messages efficiently. We experimented with this idea and liked what
we saw. Therefore we decided to implement it.
Unfortunately, this means that if you have defined your own matchers
by implementing `MatcherInterface` or using `MakePolymorphicMatcher()`,
your definitions will no longer compile. Matchers defined using the
`MATCHER*` family of macros are not affected.
Sorry for the hassle if your matchers are affected. We believe it's
in everyone's long-term interest to make this change sooner than
later. Fortunately, it's usually not hard to migrate an existing
matcher to the new API. Here's what you need to do:
If you wrote your matcher like this:
```
// Old matcher definition that doesn't work with the latest
// Google Mock.
using ::testing::MatcherInterface;
...
class MyWonderfulMatcher : public MatcherInterface<MyType> {
public:
...
virtual bool Matches(MyType value) const {
// Returns true if value matches.
return value.GetFoo() > 5;
}
...
};
```
you'll need to change it to:
```
// New matcher definition that works with the latest Google Mock.
using ::testing::MatcherInterface;
using ::testing::MatchResultListener;
...
class MyWonderfulMatcher : public MatcherInterface<MyType> {
public:
...
virtual bool MatchAndExplain(MyType value,
MatchResultListener* listener) const {
// Returns true if value matches.
return value.GetFoo() > 5;
}
...
};
```
(i.e. rename `Matches()` to `MatchAndExplain()` and give it a second
argument of type `MatchResultListener*`.)
If you were also using `ExplainMatchResultTo()` to improve the matcher
message:
```
// Old matcher definition that doesn't work with the lastest
// Google Mock.
using ::testing::MatcherInterface;
...
class MyWonderfulMatcher : public MatcherInterface<MyType> {
public:
...
virtual bool Matches(MyType value) const {
// Returns true if value matches.
return value.GetFoo() > 5;
}
virtual void ExplainMatchResultTo(MyType value,
::std::ostream* os) const {
// Prints some helpful information to os to help
// a user understand why value matches (or doesn't match).
*os << "the Foo property is " << value.GetFoo();
}
...
};
```
you should move the logic of `ExplainMatchResultTo()` into
`MatchAndExplain()`, using the `MatchResultListener` argument where
the `::std::ostream` was used:
```
// New matcher definition that works with the latest Google Mock.
using ::testing::MatcherInterface;
using ::testing::MatchResultListener;
...
class MyWonderfulMatcher : public MatcherInterface<MyType> {
public:
...
virtual bool MatchAndExplain(MyType value,
MatchResultListener* listener) const {
// Returns true if value matches.
*listener << "the Foo property is " << value.GetFoo();
return value.GetFoo() > 5;
}
...
};
```
If your matcher is defined using `MakePolymorphicMatcher()`:
```
// Old matcher definition that doesn't work with the latest
// Google Mock.
using ::testing::MakePolymorphicMatcher;
...
class MyGreatMatcher {
public:
...
bool Matches(MyType value) const {
// Returns true if value matches.
return value.GetBar() < 42;
}
...
};
... MakePolymorphicMatcher(MyGreatMatcher()) ...
```
you should rename the `Matches()` method to `MatchAndExplain()` and
add a `MatchResultListener*` argument (the same as what you need to do
for matchers defined by implementing `MatcherInterface`):
```
// New matcher definition that works with the latest Google Mock.
using ::testing::MakePolymorphicMatcher;
using ::testing::MatchResultListener;
...
class MyGreatMatcher {
public:
...
bool MatchAndExplain(MyType value,
MatchResultListener* listener) const {
// Returns true if value matches.
return value.GetBar() < 42;
}
...
};
... MakePolymorphicMatcher(MyGreatMatcher()) ...
```
If your polymorphic matcher uses `ExplainMatchResultTo()` for better
failure messages:
```
// Old matcher definition that doesn't work with the latest
// Google Mock.
using ::testing::MakePolymorphicMatcher;
...
class MyGreatMatcher {
public:
...
bool Matches(MyType value) const {
// Returns true if value matches.
return value.GetBar() < 42;
}
...
};
void ExplainMatchResultTo(const MyGreatMatcher& matcher,
MyType value,
::std::ostream* os) {
// Prints some helpful information to os to help
// a user understand why value matches (or doesn't match).
*os << "the Bar property is " << value.GetBar();
}
... MakePolymorphicMatcher(MyGreatMatcher()) ...
```
you'll need to move the logic inside `ExplainMatchResultTo()` to
`MatchAndExplain()`:
```
// New matcher definition that works with the latest Google Mock.
using ::testing::MakePolymorphicMatcher;
using ::testing::MatchResultListener;
...
class MyGreatMatcher {
public:
...
bool MatchAndExplain(MyType value,
MatchResultListener* listener) const {
// Returns true if value matches.
*listener << "the Bar property is " << value.GetBar();
return value.GetBar() < 42;
}
...
};
... MakePolymorphicMatcher(MyGreatMatcher()) ...
```
For more information, you can read these
[two](http://code.google.com/p/googlemock/wiki/V1_6_CookBook#Writing_New_Monomorphic_Matchers)
[recipes](http://code.google.com/p/googlemock/wiki/V1_6_CookBook#Writing_New_Polymorphic_Matchers)
from the cookbook. As always, you
are welcome to post questions on `googlemock@googlegroups.com` if you
need any help.
## When using Google Mock, do I have to use Google Test as the testing framework? I have my favorite testing framework and don't want to switch. ##
Google Mock works out of the box with Google Test. However, it's easy
to configure it to work with any testing framework of your choice.
[Here](http://code.google.com/p/googlemock/wiki/V1_6_ForDummies#Using_Google_Mock_with_Any_Testing_Framework) is how.
## How am I supposed to make sense of these horrible template errors? ##
If you are confused by the compiler errors gcc threw at you,
try consulting the _Google Mock Doctor_ tool first. What it does is to
scan stdin for gcc error messages, and spit out diagnoses on the
problems (we call them diseases) your code has.
To "install", run command:
```
alias gmd='<path to googlemock>/scripts/gmock_doctor.py'
```
To use it, do:
```
<your-favorite-build-command> <your-test> 2>&1 | gmd
```
For example:
```
make my_test 2>&1 | gmd
```
Or you can run `gmd` and copy-n-paste gcc's error messages to it.
## Can I mock a variadic function? ##
You cannot mock a variadic function (i.e. a function taking ellipsis
(`...`) arguments) directly in Google Mock.
The problem is that in general, there is _no way_ for a mock object to
know how many arguments are passed to the variadic method, and what
the arguments' types are. Only the _author of the base class_ knows
the protocol, and we cannot look into his head.
Therefore, to mock such a function, the _user_ must teach the mock
object how to figure out the number of arguments and their types. One
way to do it is to provide overloaded versions of the function.
Ellipsis arguments are inherited from C and not really a C++ feature.
They are unsafe to use and don't work with arguments that have
constructors or destructors. Therefore we recommend to avoid them in
C++ as much as possible.
## MSVC gives me warning C4301 or C4373 when I define a mock method with a const parameter. Why? ##
If you compile this using Microsoft Visual C++ 2005 SP1:
```
class Foo {
...
virtual void Bar(const int i) = 0;
};
class MockFoo : public Foo {
...
MOCK_METHOD1(Bar, void(const int i));
};
```
You may get the following warning:
```
warning C4301: 'MockFoo::Bar': overriding virtual function only differs from 'Foo::Bar' by const/volatile qualifier
```
This is a MSVC bug. The same code compiles fine with gcc ,for
example. If you use Visual C++ 2008 SP1, you would get the warning:
```
warning C4373: 'MockFoo::Bar': virtual function overrides 'Foo::Bar', previous versions of the compiler did not override when parameters only differed by const/volatile qualifiers
```
In C++, if you _declare_ a function with a `const` parameter, the
`const` modifier is _ignored_. Therefore, the `Foo` base class above
is equivalent to:
```
class Foo {
...
virtual void Bar(int i) = 0; // int or const int? Makes no difference.
};
```
In fact, you can _declare_ Bar() with an `int` parameter, and _define_
it with a `const int` parameter. The compiler will still match them
up.
Since making a parameter `const` is meaningless in the method
_declaration_, we recommend to remove it in both `Foo` and `MockFoo`.
That should workaround the VC bug.
Note that we are talking about the _top-level_ `const` modifier here.
If the function parameter is passed by pointer or reference, declaring
the _pointee_ or _referee_ as `const` is still meaningful. For
example, the following two declarations are _not_ equivalent:
```
void Bar(int* p); // Neither p nor *p is const.
void Bar(const int* p); // p is not const, but *p is.
```
## I have a huge mock class, and Microsoft Visual C++ runs out of memory when compiling it. What can I do? ##
We've noticed that when the `/clr` compiler flag is used, Visual C++
uses 5~6 times as much memory when compiling a mock class. We suggest
to avoid `/clr` when compiling native C++ mocks.
## I can't figure out why Google Mock thinks my expectations are not satisfied. What should I do? ##
You might want to run your test with
`--gmock_verbose=info`. This flag lets Google Mock print a trace
of every mock function call it receives. By studying the trace,
you'll gain insights on why the expectations you set are not met.
## How can I assert that a function is NEVER called? ##
```
EXPECT_CALL(foo, Bar(_))
.Times(0);
```
## I have a failed test where Google Mock tells me TWICE that a particular expectation is not satisfied. Isn't this redundant? ##
When Google Mock detects a failure, it prints relevant information
(the mock function arguments, the state of relevant expectations, and
etc) to help the user debug. If another failure is detected, Google
Mock will do the same, including printing the state of relevant
expectations.
Sometimes an expectation's state didn't change between two failures,
and you'll see the same description of the state twice. They are
however _not_ redundant, as they refer to _different points in time_.
The fact they are the same _is_ interesting information.
## I get a heap check failure when using a mock object, but using a real object is fine. What can be wrong? ##
Does the class (hopefully a pure interface) you are mocking have a
virtual destructor?
Whenever you derive from a base class, make sure its destructor is
virtual. Otherwise Bad Things will happen. Consider the following
code:
```
class Base {
public:
// Not virtual, but should be.
~Base() { ... }
...
};
class Derived : public Base {
public:
...
private:
std::string value_;
};
...
Base* p = new Derived;
...
delete p; // Surprise! ~Base() will be called, but ~Derived() will not
// - value_ is leaked.
```
By changing `~Base()` to virtual, `~Derived()` will be correctly
called when `delete p` is executed, and the heap checker
will be happy.
## The "newer expectations override older ones" rule makes writing expectations awkward. Why does Google Mock do that? ##
When people complain about this, often they are referring to code like:
```
// foo.Bar() should be called twice, return 1 the first time, and return
// 2 the second time. However, I have to write the expectations in the
// reverse order. This sucks big time!!!
EXPECT_CALL(foo, Bar())
.WillOnce(Return(2))
.RetiresOnSaturation();
EXPECT_CALL(foo, Bar())
.WillOnce(Return(1))
.RetiresOnSaturation();
```
The problem is that they didn't pick the **best** way to express the test's
intent.
By default, expectations don't have to be matched in _any_ particular
order. If you want them to match in a certain order, you need to be
explicit. This is Google Mock's (and jMock's) fundamental philosophy: it's
easy to accidentally over-specify your tests, and we want to make it
harder to do so.
There are two better ways to write the test spec. You could either
put the expectations in sequence:
```
// foo.Bar() should be called twice, return 1 the first time, and return
// 2 the second time. Using a sequence, we can write the expectations
// in their natural order.
{
InSequence s;
EXPECT_CALL(foo, Bar())
.WillOnce(Return(1))
.RetiresOnSaturation();
EXPECT_CALL(foo, Bar())
.WillOnce(Return(2))
.RetiresOnSaturation();
}
```
or you can put the sequence of actions in the same expectation:
```
// foo.Bar() should be called twice, return 1 the first time, and return
// 2 the second time.
EXPECT_CALL(foo, Bar())
.WillOnce(Return(1))
.WillOnce(Return(2))
.RetiresOnSaturation();
```
Back to the original questions: why does Google Mock search the
expectations (and `ON_CALL`s) from back to front? Because this
allows a user to set up a mock's behavior for the common case early
(e.g. in the mock's constructor or the test fixture's set-up phase)
and customize it with more specific rules later. If Google Mock
searches from front to back, this very useful pattern won't be
possible.
## Google Mock prints a warning when a function without EXPECT\_CALL is called, even if I have set its behavior using ON\_CALL. Would it be reasonable not to show the warning in this case? ##
When choosing between being neat and being safe, we lean toward the
latter. So the answer is that we think it's better to show the
warning.
Often people write `ON_CALL`s in the mock object's
constructor or `SetUp()`, as the default behavior rarely changes from
test to test. Then in the test body they set the expectations, which
are often different for each test. Having an `ON_CALL` in the set-up
part of a test doesn't mean that the calls are expected. If there's
no `EXPECT_CALL` and the method is called, it's possibly an error. If
we quietly let the call go through without notifying the user, bugs
may creep in unnoticed.
If, however, you are sure that the calls are OK, you can write
```
EXPECT_CALL(foo, Bar(_))
.WillRepeatedly(...);
```
instead of
```
ON_CALL(foo, Bar(_))
.WillByDefault(...);
```
This tells Google Mock that you do expect the calls and no warning should be
printed.
Also, you can control the verbosity using the `--gmock_verbose` flag.
If you find the output too noisy when debugging, just choose a less
verbose level.
## How can I delete the mock function's argument in an action? ##
If you find yourself needing to perform some action that's not
supported by Google Mock directly, remember that you can define your own
actions using
[MakeAction()](http://code.google.com/p/googlemock/wiki/V1_6_CookBook#Writing_New_Actions) or
[MakePolymorphicAction()](http://code.google.com/p/googlemock/wiki/V1_6_CookBook#Writing_New_Polymorphic_Actions),
or you can write a stub function and invoke it using
[Invoke()](http://code.google.com/p/googlemock/wiki/V1_6_CookBook#Using_Functions_Methods_Functors).
## MOCK\_METHODn()'s second argument looks funny. Why don't you use the MOCK\_METHODn(Method, return\_type, arg\_1, ..., arg\_n) syntax? ##
What?! I think it's beautiful. :-)
While which syntax looks more natural is a subjective matter to some
extent, Google Mock's syntax was chosen for several practical advantages it
has.
Try to mock a function that takes a map as an argument:
```
virtual int GetSize(const map<int, std::string>& m);
```
Using the proposed syntax, it would be:
```
MOCK_METHOD1(GetSize, int, const map<int, std::string>& m);
```
Guess what? You'll get a compiler error as the compiler thinks that
`const map<int, std::string>& m` are **two**, not one, arguments. To work
around this you can use `typedef` to give the map type a name, but
that gets in the way of your work. Google Mock's syntax avoids this
problem as the function's argument types are protected inside a pair
of parentheses:
```
// This compiles fine.
MOCK_METHOD1(GetSize, int(const map<int, std::string>& m));
```
You still need a `typedef` if the return type contains an unprotected
comma, but that's much rarer.
Other advantages include:
1. `MOCK_METHOD1(Foo, int, bool)` can leave a reader wonder whether the method returns `int` or `bool`, while there won't be such confusion using Google Mock's syntax.
1. The way Google Mock describes a function type is nothing new, although many people may not be familiar with it. The same syntax was used in C, and the `function` library in `tr1` uses this syntax extensively. Since `tr1` will become a part of the new version of STL, we feel very comfortable to be consistent with it.
1. The function type syntax is also used in other parts of Google Mock's API (e.g. the action interface) in order to make the implementation tractable. A user needs to learn it anyway in order to utilize Google Mock's more advanced features. We'd as well stick to the same syntax in `MOCK_METHOD*`!
## My code calls a static/global function. Can I mock it? ##
You can, but you need to make some changes.
In general, if you find yourself needing to mock a static function,
it's a sign that your modules are too tightly coupled (and less
flexible, less reusable, less testable, etc). You are probably better
off defining a small interface and call the function through that
interface, which then can be easily mocked. It's a bit of work
initially, but usually pays for itself quickly.
This Google Testing Blog
[post](http://googletesting.blogspot.com/2008/06/defeat-static-cling.html)
says it excellently. Check it out.
## My mock object needs to do complex stuff. It's a lot of pain to specify the actions. Google Mock sucks! ##
I know it's not a question, but you get an answer for free any way. :-)
With Google Mock, you can create mocks in C++ easily. And people might be
tempted to use them everywhere. Sometimes they work great, and
sometimes you may find them, well, a pain to use. So, what's wrong in
the latter case?
When you write a test without using mocks, you exercise the code and
assert that it returns the correct value or that the system is in an
expected state. This is sometimes called "state-based testing".
Mocks are great for what some call "interaction-based" testing:
instead of checking the system state at the very end, mock objects
verify that they are invoked the right way and report an error as soon
as it arises, giving you a handle on the precise context in which the
error was triggered. This is often more effective and economical to
do than state-based testing.
If you are doing state-based testing and using a test double just to
simulate the real object, you are probably better off using a fake.
Using a mock in this case causes pain, as it's not a strong point for
mocks to perform complex actions. If you experience this and think
that mocks suck, you are just not using the right tool for your
problem. Or, you might be trying to solve the wrong problem. :-)
## I got a warning "Uninteresting function call encountered - default action taken.." Should I panic? ##
By all means, NO! It's just an FYI.
What it means is that you have a mock function, you haven't set any
expectations on it (by Google Mock's rule this means that you are not
interested in calls to this function and therefore it can be called
any number of times), and it is called. That's OK - you didn't say
it's not OK to call the function!
What if you actually meant to disallow this function to be called, but
forgot to write `EXPECT_CALL(foo, Bar()).Times(0)`? While
one can argue that it's the user's fault, Google Mock tries to be nice and
prints you a note.
So, when you see the message and believe that there shouldn't be any
uninteresting calls, you should investigate what's going on. To make
your life easier, Google Mock prints the function name and arguments
when an uninteresting call is encountered.
## I want to define a custom action. Should I use Invoke() or implement the action interface? ##
Either way is fine - you want to choose the one that's more convenient
for your circumstance.
Usually, if your action is for a particular function type, defining it
using `Invoke()` should be easier; if your action can be used in
functions of different types (e.g. if you are defining
`Return(value)`), `MakePolymorphicAction()` is
easiest. Sometimes you want precise control on what types of
functions the action can be used in, and implementing
`ActionInterface` is the way to go here. See the implementation of
`Return()` in `include/gmock/gmock-actions.h` for an example.
## I'm using the set-argument-pointee action, and the compiler complains about "conflicting return type specified". What does it mean? ##
You got this error as Google Mock has no idea what value it should return
when the mock method is called. `SetArgPointee()` says what the
side effect is, but doesn't say what the return value should be. You
need `DoAll()` to chain a `SetArgPointee()` with a `Return()`.
See this [recipe](http://code.google.com/p/googlemock/wiki/V1_6_CookBook#Mocking_Side_Effects) for more details and an example.
## My question is not in your FAQ! ##
If you cannot find the answer to your question in this FAQ, there are
some other resources you can use:
1. read other [wiki pages](http://code.google.com/p/googlemock/w/list),
1. search the mailing list [archive](http://groups.google.com/group/googlemock/topics),
1. ask it on [googlemock@googlegroups.com](mailto:googlemock@googlegroups.com) and someone will answer it (to prevent spam, we require you to join the [discussion group](http://groups.google.com/group/googlemock) before you can post.).
Please note that creating an issue in the
[issue tracker](http://code.google.com/p/googlemock/issues/list) is _not_
a good way to get your answer, as it is monitored infrequently by a
very small number of people.
When asking a question, it's helpful to provide as much of the
following information as possible (people cannot help you if there's
not enough information in your question):
* the version (or the revision number if you check out from SVN directly) of Google Mock you use (Google Mock is under active development, so it's possible that your problem has been solved in a later version),
* your operating system,
* the name and version of your compiler,
* the complete command line flags you give to your compiler,
* the complete compiler error messages (if the question is about compilation),
* the _actual_ code (ideally, a minimal but complete program) that has the problem you encounter.

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@ -1,556 +0,0 @@
# Defining a Mock Class #
## Mocking a Normal Class ##
Given
```
class Foo {
...
virtual ~Foo();
virtual int GetSize() const = 0;
virtual string Describe(const char* name) = 0;
virtual string Describe(int type) = 0;
virtual bool Process(Bar elem, int count) = 0;
};
```
(note that `~Foo()` **must** be virtual) we can define its mock as
```
#include "gmock/gmock.h"
class MockFoo : public Foo {
MOCK_CONST_METHOD0(GetSize, int());
MOCK_METHOD1(Describe, string(const char* name));
MOCK_METHOD1(Describe, string(int type));
MOCK_METHOD2(Process, bool(Bar elem, int count));
};
```
To create a "nice" mock object which ignores all uninteresting calls,
or a "strict" mock object, which treats them as failures:
```
NiceMock<MockFoo> nice_foo; // The type is a subclass of MockFoo.
StrictMock<MockFoo> strict_foo; // The type is a subclass of MockFoo.
```
## Mocking a Class Template ##
To mock
```
template <typename Elem>
class StackInterface {
public:
...
virtual ~StackInterface();
virtual int GetSize() const = 0;
virtual void Push(const Elem& x) = 0;
};
```
(note that `~StackInterface()` **must** be virtual) just append `_T` to the `MOCK_*` macros:
```
template <typename Elem>
class MockStack : public StackInterface<Elem> {
public:
...
MOCK_CONST_METHOD0_T(GetSize, int());
MOCK_METHOD1_T(Push, void(const Elem& x));
};
```
## Specifying Calling Conventions for Mock Functions ##
If your mock function doesn't use the default calling convention, you
can specify it by appending `_WITH_CALLTYPE` to any of the macros
described in the previous two sections and supplying the calling
convention as the first argument to the macro. For example,
```
MOCK_METHOD_1_WITH_CALLTYPE(STDMETHODCALLTYPE, Foo, bool(int n));
MOCK_CONST_METHOD2_WITH_CALLTYPE(STDMETHODCALLTYPE, Bar, int(double x, double y));
```
where `STDMETHODCALLTYPE` is defined by `<objbase.h>` on Windows.
# Using Mocks in Tests #
The typical flow is:
1. Import the Google Mock names you need to use. All Google Mock names are in the `testing` namespace unless they are macros or otherwise noted.
1. Create the mock objects.
1. Optionally, set the default actions of the mock objects.
1. Set your expectations on the mock objects (How will they be called? What wil they do?).
1. Exercise code that uses the mock objects; if necessary, check the result using [Google Test](http://code.google.com/p/googletest/) assertions.
1. When a mock objects is destructed, Google Mock automatically verifies that all expectations on it have been satisfied.
Here is an example:
```
using ::testing::Return; // #1
TEST(BarTest, DoesThis) {
MockFoo foo; // #2
ON_CALL(foo, GetSize()) // #3
.WillByDefault(Return(1));
// ... other default actions ...
EXPECT_CALL(foo, Describe(5)) // #4
.Times(3)
.WillRepeatedly(Return("Category 5"));
// ... other expectations ...
EXPECT_EQ("good", MyProductionFunction(&foo)); // #5
} // #6
```
# Setting Default Actions #
Google Mock has a **built-in default action** for any function that
returns `void`, `bool`, a numeric value, or a pointer.
To customize the default action for functions with return type `T` globally:
```
using ::testing::DefaultValue;
DefaultValue<T>::Set(value); // Sets the default value to be returned.
// ... use the mocks ...
DefaultValue<T>::Clear(); // Resets the default value.
```
To customize the default action for a particular method, use `ON_CALL()`:
```
ON_CALL(mock_object, method(matchers))
.With(multi_argument_matcher) ?
.WillByDefault(action);
```
# Setting Expectations #
`EXPECT_CALL()` sets **expectations** on a mock method (How will it be
called? What will it do?):
```
EXPECT_CALL(mock_object, method(matchers))
.With(multi_argument_matcher) ?
.Times(cardinality) ?
.InSequence(sequences) *
.After(expectations) *
.WillOnce(action) *
.WillRepeatedly(action) ?
.RetiresOnSaturation(); ?
```
If `Times()` is omitted, the cardinality is assumed to be:
* `Times(1)` when there is neither `WillOnce()` nor `WillRepeatedly()`;
* `Times(n)` when there are `n WillOnce()`s but no `WillRepeatedly()`, where `n` >= 1; or
* `Times(AtLeast(n))` when there are `n WillOnce()`s and a `WillRepeatedly()`, where `n` >= 0.
A method with no `EXPECT_CALL()` is free to be invoked _any number of times_, and the default action will be taken each time.
# Matchers #
A **matcher** matches a _single_ argument. You can use it inside
`ON_CALL()` or `EXPECT_CALL()`, or use it to validate a value
directly:
| `EXPECT_THAT(value, matcher)` | Asserts that `value` matches `matcher`. |
|:------------------------------|:----------------------------------------|
| `ASSERT_THAT(value, matcher)` | The same as `EXPECT_THAT(value, matcher)`, except that it generates a **fatal** failure. |
Built-in matchers (where `argument` is the function argument) are
divided into several categories:
## Wildcard ##
|`_`|`argument` can be any value of the correct type.|
|:--|:-----------------------------------------------|
|`A<type>()` or `An<type>()`|`argument` can be any value of type `type`. |
## Generic Comparison ##
|`Eq(value)` or `value`|`argument == value`|
|:---------------------|:------------------|
|`Ge(value)` |`argument >= value`|
|`Gt(value)` |`argument > value` |
|`Le(value)` |`argument <= value`|
|`Lt(value)` |`argument < value` |
|`Ne(value)` |`argument != value`|
|`IsNull()` |`argument` is a `NULL` pointer (raw or smart).|
|`NotNull()` |`argument` is a non-null pointer (raw or smart).|
|`Ref(variable)` |`argument` is a reference to `variable`.|
|`TypedEq<type>(value)`|`argument` has type `type` and is equal to `value`. You may need to use this instead of `Eq(value)` when the mock function is overloaded.|
Except `Ref()`, these matchers make a _copy_ of `value` in case it's
modified or destructed later. If the compiler complains that `value`
doesn't have a public copy constructor, try wrap it in `ByRef()`,
e.g. `Eq(ByRef(non_copyable_value))`. If you do that, make sure
`non_copyable_value` is not changed afterwards, or the meaning of your
matcher will be changed.
## Floating-Point Matchers ##
|`DoubleEq(a_double)`|`argument` is a `double` value approximately equal to `a_double`, treating two NaNs as unequal.|
|:-------------------|:----------------------------------------------------------------------------------------------|
|`FloatEq(a_float)` |`argument` is a `float` value approximately equal to `a_float`, treating two NaNs as unequal. |
|`NanSensitiveDoubleEq(a_double)`|`argument` is a `double` value approximately equal to `a_double`, treating two NaNs as equal. |
|`NanSensitiveFloatEq(a_float)`|`argument` is a `float` value approximately equal to `a_float`, treating two NaNs as equal. |
The above matchers use ULP-based comparison (the same as used in
[Google Test](http://code.google.com/p/googletest/)). They
automatically pick a reasonable error bound based on the absolute
value of the expected value. `DoubleEq()` and `FloatEq()` conform to
the IEEE standard, which requires comparing two NaNs for equality to
return false. The `NanSensitive*` version instead treats two NaNs as
equal, which is often what a user wants.
|`DoubleNear(a_double, max_abs_error)`|`argument` is a `double` value close to `a_double` (absolute error <= `max_abs_error`), treating two NaNs as unequal.|
|:------------------------------------|:--------------------------------------------------------------------------------------------------------------------|
|`FloatNear(a_float, max_abs_error)` |`argument` is a `float` value close to `a_float` (absolute error <= `max_abs_error`), treating two NaNs as unequal. |
|`NanSensitiveDoubleNear(a_double, max_abs_error)`|`argument` is a `double` value close to `a_double` (absolute error <= `max_abs_error`), treating two NaNs as equal. |
|`NanSensitiveFloatNear(a_float, max_abs_error)`|`argument` is a `float` value close to `a_float` (absolute error <= `max_abs_error`), treating two NaNs as equal. |
## String Matchers ##
The `argument` can be either a C string or a C++ string object:
|`ContainsRegex(string)`|`argument` matches the given regular expression.|
|:----------------------|:-----------------------------------------------|
|`EndsWith(suffix)` |`argument` ends with string `suffix`. |
|`HasSubstr(string)` |`argument` contains `string` as a sub-string. |
|`MatchesRegex(string)` |`argument` matches the given regular expression with the match starting at the first character and ending at the last character.|
|`StartsWith(prefix)` |`argument` starts with string `prefix`. |
|`StrCaseEq(string)` |`argument` is equal to `string`, ignoring case. |
|`StrCaseNe(string)` |`argument` is not equal to `string`, ignoring case.|
|`StrEq(string)` |`argument` is equal to `string`. |
|`StrNe(string)` |`argument` is not equal to `string`. |
`ContainsRegex()` and `MatchesRegex()` use the regular expression
syntax defined
[here](http://code.google.com/p/googletest/wiki/AdvancedGuide#Regular_Expression_Syntax).
`StrCaseEq()`, `StrCaseNe()`, `StrEq()`, and `StrNe()` work for wide
strings as well.
## Container Matchers ##
Most STL-style containers support `==`, so you can use
`Eq(expected_container)` or simply `expected_container` to match a
container exactly. If you want to write the elements in-line,
match them more flexibly, or get more informative messages, you can use:
| `ContainerEq(container)` | The same as `Eq(container)` except that the failure message also includes which elements are in one container but not the other. |
|:-------------------------|:---------------------------------------------------------------------------------------------------------------------------------|
| `Contains(e)` | `argument` contains an element that matches `e`, which can be either a value or a matcher. |
| `Each(e)` | `argument` is a container where _every_ element matches `e`, which can be either a value or a matcher. |
| `ElementsAre(e0, e1, ..., en)` | `argument` has `n + 1` elements, where the i-th element matches `ei`, which can be a value or a matcher. 0 to 10 arguments are allowed. |
| `ElementsAreArray({ e0, e1, ..., en })`, `ElementsAreArray(array)`, or `ElementsAreArray(array, count)` | The same as `ElementsAre()` except that the expected element values/matchers come from an initializer list, vector, or C-style array. |
| `IsEmpty()` | `argument` is an empty container (`container.empty()`). |
| `Pointwise(m, container)` | `argument` contains the same number of elements as in `container`, and for all i, (the i-th element in `argument`, the i-th element in `container`) match `m`, which is a matcher on 2-tuples. E.g. `Pointwise(Le(), upper_bounds)` verifies that each element in `argument` doesn't exceed the corresponding element in `upper_bounds`. See more detail below. |
| `SizeIs(m)` | `argument` is a container whose size matches `m`. E.g. `SizeIs(2)` or `SizeIs(Lt(2))`. |
| `UnorderedElementsAre(e0, e1, ..., en)` | `argument` has `n + 1` elements, and under some permutation each element matches an `ei` (for a different `i`), which can be a value or a matcher. 0 to 10 arguments are allowed. |
| `UnorderedElementsAreArray({ e0, e1, ..., en })`, `UnorderedElementsAreArray(array)`, or `UnorderedElementsAreArray(array, count)` | The same as `UnorderedElementsAre()` except that the expected element values/matchers come from an initializer list, vector, or C-style array. |
| `WhenSorted(m)` | When `argument` is sorted using the `<` operator, it matches container matcher `m`. E.g. `WhenSorted(UnorderedElementsAre(1, 2, 3))` verifies that `argument` contains elements `1`, `2`, and `3`, ignoring order. |
| `WhenSortedBy(comparator, m)` | The same as `WhenSorted(m)`, except that the given comparator instead of `<` is used to sort `argument`. E.g. `WhenSortedBy(std::greater<int>(), ElementsAre(3, 2, 1))`. |
Notes:
* These matchers can also match:
1. a native array passed by reference (e.g. in `Foo(const int (&a)[5])`), and
1. an array passed as a pointer and a count (e.g. in `Bar(const T* buffer, int len)` -- see [Multi-argument Matchers](#Multiargument_Matchers.md)).
* The array being matched may be multi-dimensional (i.e. its elements can be arrays).
* `m` in `Pointwise(m, ...)` should be a matcher for `std::tr1::tuple<T, U>` where `T` and `U` are the element type of the actual container and the expected container, respectively. For example, to compare two `Foo` containers where `Foo` doesn't support `operator==` but has an `Equals()` method, one might write:
```
using ::std::tr1::get;
MATCHER(FooEq, "") {
return get<0>(arg).Equals(get<1>(arg));
}
...
EXPECT_THAT(actual_foos, Pointwise(FooEq(), expected_foos));
```
## Member Matchers ##
|`Field(&class::field, m)`|`argument.field` (or `argument->field` when `argument` is a plain pointer) matches matcher `m`, where `argument` is an object of type _class_.|
|:------------------------|:---------------------------------------------------------------------------------------------------------------------------------------------|
|`Key(e)` |`argument.first` matches `e`, which can be either a value or a matcher. E.g. `Contains(Key(Le(5)))` can verify that a `map` contains a key `<= 5`.|
|`Pair(m1, m2)` |`argument` is an `std::pair` whose `first` field matches `m1` and `second` field matches `m2`. |
|`Property(&class::property, m)`|`argument.property()` (or `argument->property()` when `argument` is a plain pointer) matches matcher `m`, where `argument` is an object of type _class_.|
## Matching the Result of a Function or Functor ##
|`ResultOf(f, m)`|`f(argument)` matches matcher `m`, where `f` is a function or functor.|
|:---------------|:---------------------------------------------------------------------|
## Pointer Matchers ##
|`Pointee(m)`|`argument` (either a smart pointer or a raw pointer) points to a value that matches matcher `m`.|
|:-----------|:-----------------------------------------------------------------------------------------------|
## Multiargument Matchers ##
Technically, all matchers match a _single_ value. A "multi-argument"
matcher is just one that matches a _tuple_. The following matchers can
be used to match a tuple `(x, y)`:
|`Eq()`|`x == y`|
|:-----|:-------|
|`Ge()`|`x >= y`|
|`Gt()`|`x > y` |
|`Le()`|`x <= y`|
|`Lt()`|`x < y` |
|`Ne()`|`x != y`|
You can use the following selectors to pick a subset of the arguments
(or reorder them) to participate in the matching:
|`AllArgs(m)`|Equivalent to `m`. Useful as syntactic sugar in `.With(AllArgs(m))`.|
|:-----------|:-------------------------------------------------------------------|
|`Args<N1, N2, ..., Nk>(m)`|The tuple of the `k` selected (using 0-based indices) arguments matches `m`, e.g. `Args<1, 2>(Eq())`.|
## Composite Matchers ##
You can make a matcher from one or more other matchers:
|`AllOf(m1, m2, ..., mn)`|`argument` matches all of the matchers `m1` to `mn`.|
|:-----------------------|:---------------------------------------------------|
|`AnyOf(m1, m2, ..., mn)`|`argument` matches at least one of the matchers `m1` to `mn`.|
|`Not(m)` |`argument` doesn't match matcher `m`. |
## Adapters for Matchers ##
|`MatcherCast<T>(m)`|casts matcher `m` to type `Matcher<T>`.|
|:------------------|:--------------------------------------|
|`SafeMatcherCast<T>(m)`| [safely casts](http://code.google.com/p/googlemock/wiki/V1_7_CookBook#Casting_Matchers) matcher `m` to type `Matcher<T>`. |
|`Truly(predicate)` |`predicate(argument)` returns something considered by C++ to be true, where `predicate` is a function or functor.|
## Matchers as Predicates ##
|`Matches(m)(value)`|evaluates to `true` if `value` matches `m`. You can use `Matches(m)` alone as a unary functor.|
|:------------------|:---------------------------------------------------------------------------------------------|
|`ExplainMatchResult(m, value, result_listener)`|evaluates to `true` if `value` matches `m`, explaining the result to `result_listener`. |
|`Value(value, m)` |evaluates to `true` if `value` matches `m`. |
## Defining Matchers ##
| `MATCHER(IsEven, "") { return (arg % 2) == 0; }` | Defines a matcher `IsEven()` to match an even number. |
|:-------------------------------------------------|:------------------------------------------------------|
| `MATCHER_P(IsDivisibleBy, n, "") { *result_listener << "where the remainder is " << (arg % n); return (arg % n) == 0; }` | Defines a macher `IsDivisibleBy(n)` to match a number divisible by `n`. |
| `MATCHER_P2(IsBetween, a, b, std::string(negation ? "isn't" : "is") + " between " + PrintToString(a) + " and " + PrintToString(b)) { return a <= arg && arg <= b; }` | Defines a matcher `IsBetween(a, b)` to match a value in the range [`a`, `b`]. |
**Notes:**
1. The `MATCHER*` macros cannot be used inside a function or class.
1. The matcher body must be _purely functional_ (i.e. it cannot have any side effect, and the result must not depend on anything other than the value being matched and the matcher parameters).
1. You can use `PrintToString(x)` to convert a value `x` of any type to a string.
## Matchers as Test Assertions ##
|`ASSERT_THAT(expression, m)`|Generates a [fatal failure](http://code.google.com/p/googletest/wiki/Primer#Assertions) if the value of `expression` doesn't match matcher `m`.|
|:---------------------------|:----------------------------------------------------------------------------------------------------------------------------------------------|
|`EXPECT_THAT(expression, m)`|Generates a non-fatal failure if the value of `expression` doesn't match matcher `m`. |
# Actions #
**Actions** specify what a mock function should do when invoked.
## Returning a Value ##
|`Return()`|Return from a `void` mock function.|
|:---------|:----------------------------------|
|`Return(value)`|Return `value`. If the type of `value` is different to the mock function's return type, `value` is converted to the latter type <i>at the time the expectation is set</i>, not when the action is executed.|
|`ReturnArg<N>()`|Return the `N`-th (0-based) argument.|
|`ReturnNew<T>(a1, ..., ak)`|Return `new T(a1, ..., ak)`; a different object is created each time.|
|`ReturnNull()`|Return a null pointer. |
|`ReturnPointee(ptr)`|Return the value pointed to by `ptr`.|
|`ReturnRef(variable)`|Return a reference to `variable`. |
|`ReturnRefOfCopy(value)`|Return a reference to a copy of `value`; the copy lives as long as the action.|
## Side Effects ##
|`Assign(&variable, value)`|Assign `value` to variable.|
|:-------------------------|:--------------------------|
| `DeleteArg<N>()` | Delete the `N`-th (0-based) argument, which must be a pointer. |
| `SaveArg<N>(pointer)` | Save the `N`-th (0-based) argument to `*pointer`. |
| `SaveArgPointee<N>(pointer)` | Save the value pointed to by the `N`-th (0-based) argument to `*pointer`. |
| `SetArgReferee<N>(value)` | Assign value to the variable referenced by the `N`-th (0-based) argument. |
|`SetArgPointee<N>(value)` |Assign `value` to the variable pointed by the `N`-th (0-based) argument.|
|`SetArgumentPointee<N>(value)`|Same as `SetArgPointee<N>(value)`. Deprecated. Will be removed in v1.7.0.|
|`SetArrayArgument<N>(first, last)`|Copies the elements in source range [`first`, `last`) to the array pointed to by the `N`-th (0-based) argument, which can be either a pointer or an iterator. The action does not take ownership of the elements in the source range.|
|`SetErrnoAndReturn(error, value)`|Set `errno` to `error` and return `value`.|
|`Throw(exception)` |Throws the given exception, which can be any copyable value. Available since v1.1.0.|
## Using a Function or a Functor as an Action ##
|`Invoke(f)`|Invoke `f` with the arguments passed to the mock function, where `f` can be a global/static function or a functor.|
|:----------|:-----------------------------------------------------------------------------------------------------------------|
|`Invoke(object_pointer, &class::method)`|Invoke the {method on the object with the arguments passed to the mock function. |
|`InvokeWithoutArgs(f)`|Invoke `f`, which can be a global/static function or a functor. `f` must take no arguments. |
|`InvokeWithoutArgs(object_pointer, &class::method)`|Invoke the method on the object, which takes no arguments. |
|`InvokeArgument<N>(arg1, arg2, ..., argk)`|Invoke the mock function's `N`-th (0-based) argument, which must be a function or a functor, with the `k` arguments.|
The return value of the invoked function is used as the return value
of the action.
When defining a function or functor to be used with `Invoke*()`, you can declare any unused parameters as `Unused`:
```
double Distance(Unused, double x, double y) { return sqrt(x*x + y*y); }
...
EXPECT_CALL(mock, Foo("Hi", _, _)).WillOnce(Invoke(Distance));
```
In `InvokeArgument<N>(...)`, if an argument needs to be passed by reference, wrap it inside `ByRef()`. For example,
```
InvokeArgument<2>(5, string("Hi"), ByRef(foo))
```
calls the mock function's #2 argument, passing to it `5` and `string("Hi")` by value, and `foo` by reference.
## Default Action ##
|`DoDefault()`|Do the default action (specified by `ON_CALL()` or the built-in one).|
|:------------|:--------------------------------------------------------------------|
**Note:** due to technical reasons, `DoDefault()` cannot be used inside a composite action - trying to do so will result in a run-time error.
## Composite Actions ##
|`DoAll(a1, a2, ..., an)`|Do all actions `a1` to `an` and return the result of `an` in each invocation. The first `n - 1` sub-actions must return void. |
|:-----------------------|:-----------------------------------------------------------------------------------------------------------------------------|
|`IgnoreResult(a)` |Perform action `a` and ignore its result. `a` must not return void. |
|`WithArg<N>(a)` |Pass the `N`-th (0-based) argument of the mock function to action `a` and perform it. |
|`WithArgs<N1, N2, ..., Nk>(a)`|Pass the selected (0-based) arguments of the mock function to action `a` and perform it. |
|`WithoutArgs(a)` |Perform action `a` without any arguments. |
## Defining Actions ##
| `ACTION(Sum) { return arg0 + arg1; }` | Defines an action `Sum()` to return the sum of the mock function's argument #0 and #1. |
|:--------------------------------------|:---------------------------------------------------------------------------------------|
| `ACTION_P(Plus, n) { return arg0 + n; }` | Defines an action `Plus(n)` to return the sum of the mock function's argument #0 and `n`. |
| `ACTION_Pk(Foo, p1, ..., pk) { statements; }` | Defines a parameterized action `Foo(p1, ..., pk)` to execute the given `statements`. |
The `ACTION*` macros cannot be used inside a function or class.
# Cardinalities #
These are used in `Times()` to specify how many times a mock function will be called:
|`AnyNumber()`|The function can be called any number of times.|
|:------------|:----------------------------------------------|
|`AtLeast(n)` |The call is expected at least `n` times. |
|`AtMost(n)` |The call is expected at most `n` times. |
|`Between(m, n)`|The call is expected between `m` and `n` (inclusive) times.|
|`Exactly(n) or n`|The call is expected exactly `n` times. In particular, the call should never happen when `n` is 0.|
# Expectation Order #
By default, the expectations can be matched in _any_ order. If some
or all expectations must be matched in a given order, there are two
ways to specify it. They can be used either independently or
together.
## The After Clause ##
```
using ::testing::Expectation;
...
Expectation init_x = EXPECT_CALL(foo, InitX());
Expectation init_y = EXPECT_CALL(foo, InitY());
EXPECT_CALL(foo, Bar())
.After(init_x, init_y);
```
says that `Bar()` can be called only after both `InitX()` and
`InitY()` have been called.
If you don't know how many pre-requisites an expectation has when you
write it, you can use an `ExpectationSet` to collect them:
```
using ::testing::ExpectationSet;
...
ExpectationSet all_inits;
for (int i = 0; i < element_count; i++) {
all_inits += EXPECT_CALL(foo, InitElement(i));
}
EXPECT_CALL(foo, Bar())
.After(all_inits);
```
says that `Bar()` can be called only after all elements have been
initialized (but we don't care about which elements get initialized
before the others).
Modifying an `ExpectationSet` after using it in an `.After()` doesn't
affect the meaning of the `.After()`.
## Sequences ##
When you have a long chain of sequential expectations, it's easier to
specify the order using **sequences**, which don't require you to given
each expectation in the chain a different name. <i>All expected<br>
calls</i> in the same sequence must occur in the order they are
specified.
```
using ::testing::Sequence;
Sequence s1, s2;
...
EXPECT_CALL(foo, Reset())
.InSequence(s1, s2)
.WillOnce(Return(true));
EXPECT_CALL(foo, GetSize())
.InSequence(s1)
.WillOnce(Return(1));
EXPECT_CALL(foo, Describe(A<const char*>()))
.InSequence(s2)
.WillOnce(Return("dummy"));
```
says that `Reset()` must be called before _both_ `GetSize()` _and_
`Describe()`, and the latter two can occur in any order.
To put many expectations in a sequence conveniently:
```
using ::testing::InSequence;
{
InSequence dummy;
EXPECT_CALL(...)...;
EXPECT_CALL(...)...;
...
EXPECT_CALL(...)...;
}
```
says that all expected calls in the scope of `dummy` must occur in
strict order. The name `dummy` is irrelevant.)
# Verifying and Resetting a Mock #
Google Mock will verify the expectations on a mock object when it is destructed, or you can do it earlier:
```
using ::testing::Mock;
...
// Verifies and removes the expectations on mock_obj;
// returns true iff successful.
Mock::VerifyAndClearExpectations(&mock_obj);
...
// Verifies and removes the expectations on mock_obj;
// also removes the default actions set by ON_CALL();
// returns true iff successful.
Mock::VerifyAndClear(&mock_obj);
```
You can also tell Google Mock that a mock object can be leaked and doesn't
need to be verified:
```
Mock::AllowLeak(&mock_obj);
```
# Mock Classes #
Google Mock defines a convenient mock class template
```
class MockFunction<R(A1, ..., An)> {
public:
MOCK_METHODn(Call, R(A1, ..., An));
};
```
See this [recipe](http://code.google.com/p/googlemock/wiki/V1_7_CookBook#Using_Check_Points) for one application of it.
# Flags #
| `--gmock_catch_leaked_mocks=0` | Don't report leaked mock objects as failures. |
|:-------------------------------|:----------------------------------------------|
| `--gmock_verbose=LEVEL` | Sets the default verbosity level (`info`, `warning`, or `error`) of Google Mock messages. |

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This page lists all documentation wiki pages for Google Mock **(the SVN trunk version)**
- **if you use a released version of Google Mock, please read the documentation for that specific version instead.**
* [ForDummies](V1_7_ForDummies.md) -- start here if you are new to Google Mock.
* [CheatSheet](V1_7_CheatSheet.md) -- a quick reference.
* [CookBook](V1_7_CookBook.md) -- recipes for doing various tasks using Google Mock.
* [FrequentlyAskedQuestions](V1_7_FrequentlyAskedQuestions.md) -- check here before asking a question on the mailing list.
To contribute code to Google Mock, read:
* [DevGuide](DevGuide.md) -- read this _before_ writing your first patch.
* [Pump Manual](http://code.google.com/p/googletest/wiki/PumpManual) -- how we generate some of Google Mock's source files.

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(**Note:** If you get compiler errors that you don't understand, be sure to consult [Google Mock Doctor](http://code.google.com/p/googlemock/wiki/V1_7_FrequentlyAskedQuestions#How_am_I_supposed_to_make_sense_of_these_horrible_template_error).)
# What Is Google C++ Mocking Framework? #
When you write a prototype or test, often it's not feasible or wise to rely on real objects entirely. A **mock object** implements the same interface as a real object (so it can be used as one), but lets you specify at run time how it will be used and what it should do (which methods will be called? in which order? how many times? with what arguments? what will they return? etc).
**Note:** It is easy to confuse the term _fake objects_ with mock objects. Fakes and mocks actually mean very different things in the Test-Driven Development (TDD) community:
* **Fake** objects have working implementations, but usually take some shortcut (perhaps to make the operations less expensive), which makes them not suitable for production. An in-memory file system would be an example of a fake.
* **Mocks** are objects pre-programmed with _expectations_, which form a specification of the calls they are expected to receive.
If all this seems too abstract for you, don't worry - the most important thing to remember is that a mock allows you to check the _interaction_ between itself and code that uses it. The difference between fakes and mocks will become much clearer once you start to use mocks.
**Google C++ Mocking Framework** (or **Google Mock** for short) is a library (sometimes we also call it a "framework" to make it sound cool) for creating mock classes and using them. It does to C++ what [jMock](http://www.jmock.org/) and [EasyMock](http://www.easymock.org/) do to Java.
Using Google Mock involves three basic steps:
1. Use some simple macros to describe the interface you want to mock, and they will expand to the implementation of your mock class;
1. Create some mock objects and specify its expectations and behavior using an intuitive syntax;
1. Exercise code that uses the mock objects. Google Mock will catch any violation of the expectations as soon as it arises.
# Why Google Mock? #
While mock objects help you remove unnecessary dependencies in tests and make them fast and reliable, using mocks manually in C++ is _hard_:
* Someone has to implement the mocks. The job is usually tedious and error-prone. No wonder people go great distance to avoid it.
* The quality of those manually written mocks is a bit, uh, unpredictable. You may see some really polished ones, but you may also see some that were hacked up in a hurry and have all sorts of ad hoc restrictions.
* The knowledge you gained from using one mock doesn't transfer to the next.
In contrast, Java and Python programmers have some fine mock frameworks, which automate the creation of mocks. As a result, mocking is a proven effective technique and widely adopted practice in those communities. Having the right tool absolutely makes the difference.
Google Mock was built to help C++ programmers. It was inspired by [jMock](http://www.jmock.org/) and [EasyMock](http://www.easymock.org/), but designed with C++'s specifics in mind. It is your friend if any of the following problems is bothering you:
* You are stuck with a sub-optimal design and wish you had done more prototyping before it was too late, but prototyping in C++ is by no means "rapid".
* Your tests are slow as they depend on too many libraries or use expensive resources (e.g. a database).
* Your tests are brittle as some resources they use are unreliable (e.g. the network).
* You want to test how your code handles a failure (e.g. a file checksum error), but it's not easy to cause one.
* You need to make sure that your module interacts with other modules in the right way, but it's hard to observe the interaction; therefore you resort to observing the side effects at the end of the action, which is awkward at best.
* You want to "mock out" your dependencies, except that they don't have mock implementations yet; and, frankly, you aren't thrilled by some of those hand-written mocks.
We encourage you to use Google Mock as:
* a _design_ tool, for it lets you experiment with your interface design early and often. More iterations lead to better designs!
* a _testing_ tool to cut your tests' outbound dependencies and probe the interaction between your module and its collaborators.
# Getting Started #
Using Google Mock is easy! Inside your C++ source file, just #include `"gtest/gtest.h"` and `"gmock/gmock.h"`, and you are ready to go.
# A Case for Mock Turtles #
Let's look at an example. Suppose you are developing a graphics program that relies on a LOGO-like API for drawing. How would you test that it does the right thing? Well, you can run it and compare the screen with a golden screen snapshot, but let's admit it: tests like this are expensive to run and fragile (What if you just upgraded to a shiny new graphics card that has better anti-aliasing? Suddenly you have to update all your golden images.). It would be too painful if all your tests are like this. Fortunately, you learned about Dependency Injection and know the right thing to do: instead of having your application talk to the drawing API directly, wrap the API in an interface (say, `Turtle`) and code to that interface:
```
class Turtle {
...
virtual ~Turtle() {}
virtual void PenUp() = 0;
virtual void PenDown() = 0;
virtual void Forward(int distance) = 0;
virtual void Turn(int degrees) = 0;
virtual void GoTo(int x, int y) = 0;
virtual int GetX() const = 0;
virtual int GetY() const = 0;
};
```
(Note that the destructor of `Turtle` **must** be virtual, as is the case for **all** classes you intend to inherit from - otherwise the destructor of the derived class will not be called when you delete an object through a base pointer, and you'll get corrupted program states like memory leaks.)
You can control whether the turtle's movement will leave a trace using `PenUp()` and `PenDown()`, and control its movement using `Forward()`, `Turn()`, and `GoTo()`. Finally, `GetX()` and `GetY()` tell you the current position of the turtle.
Your program will normally use a real implementation of this interface. In tests, you can use a mock implementation instead. This allows you to easily check what drawing primitives your program is calling, with what arguments, and in which order. Tests written this way are much more robust (they won't break because your new machine does anti-aliasing differently), easier to read and maintain (the intent of a test is expressed in the code, not in some binary images), and run _much, much faster_.
# Writing the Mock Class #
If you are lucky, the mocks you need to use have already been implemented by some nice people. If, however, you find yourself in the position to write a mock class, relax - Google Mock turns this task into a fun game! (Well, almost.)
## How to Define It ##
Using the `Turtle` interface as example, here are the simple steps you need to follow:
1. Derive a class `MockTurtle` from `Turtle`.
1. Take a _virtual_ function of `Turtle` (while it's possible to [mock non-virtual methods using templates](http://code.google.com/p/googlemock/wiki/V1_7_CookBook#Mocking_Nonvirtual_Methods), it's much more involved). Count how many arguments it has.
1. In the `public:` section of the child class, write `MOCK_METHODn();` (or `MOCK_CONST_METHODn();` if you are mocking a `const` method), where `n` is the number of the arguments; if you counted wrong, shame on you, and a compiler error will tell you so.
1. Now comes the fun part: you take the function signature, cut-and-paste the _function name_ as the _first_ argument to the macro, and leave what's left as the _second_ argument (in case you're curious, this is the _type of the function_).
1. Repeat until all virtual functions you want to mock are done.
After the process, you should have something like:
```
#include "gmock/gmock.h" // Brings in Google Mock.
class MockTurtle : public Turtle {
public:
...
MOCK_METHOD0(PenUp, void());
MOCK_METHOD0(PenDown, void());
MOCK_METHOD1(Forward, void(int distance));
MOCK_METHOD1(Turn, void(int degrees));
MOCK_METHOD2(GoTo, void(int x, int y));
MOCK_CONST_METHOD0(GetX, int());
MOCK_CONST_METHOD0(GetY, int());
};
```
You don't need to define these mock methods somewhere else - the `MOCK_METHOD*` macros will generate the definitions for you. It's that simple! Once you get the hang of it, you can pump out mock classes faster than your source-control system can handle your check-ins.
**Tip:** If even this is too much work for you, you'll find the
`gmock_gen.py` tool in Google Mock's `scripts/generator/` directory (courtesy of the [cppclean](http://code.google.com/p/cppclean/) project) useful. This command-line
tool requires that you have Python 2.4 installed. You give it a C++ file and the name of an abstract class defined in it,
and it will print the definition of the mock class for you. Due to the
complexity of the C++ language, this script may not always work, but
it can be quite handy when it does. For more details, read the [user documentation](http://code.google.com/p/googlemock/source/browse/trunk/scripts/generator/README).
## Where to Put It ##
When you define a mock class, you need to decide where to put its definition. Some people put it in a `*_test.cc`. This is fine when the interface being mocked (say, `Foo`) is owned by the same person or team. Otherwise, when the owner of `Foo` changes it, your test could break. (You can't really expect `Foo`'s maintainer to fix every test that uses `Foo`, can you?)
So, the rule of thumb is: if you need to mock `Foo` and it's owned by others, define the mock class in `Foo`'s package (better, in a `testing` sub-package such that you can clearly separate production code and testing utilities), and put it in a `mock_foo.h`. Then everyone can reference `mock_foo.h` from their tests. If `Foo` ever changes, there is only one copy of `MockFoo` to change, and only tests that depend on the changed methods need to be fixed.
Another way to do it: you can introduce a thin layer `FooAdaptor` on top of `Foo` and code to this new interface. Since you own `FooAdaptor`, you can absorb changes in `Foo` much more easily. While this is more work initially, carefully choosing the adaptor interface can make your code easier to write and more readable (a net win in the long run), as you can choose `FooAdaptor` to fit your specific domain much better than `Foo` does.
# Using Mocks in Tests #
Once you have a mock class, using it is easy. The typical work flow is:
1. Import the Google Mock names from the `testing` namespace such that you can use them unqualified (You only have to do it once per file. Remember that namespaces are a good idea and good for your health.).
1. Create some mock objects.
1. Specify your expectations on them (How many times will a method be called? With what arguments? What should it do? etc.).
1. Exercise some code that uses the mocks; optionally, check the result using Google Test assertions. If a mock method is called more than expected or with wrong arguments, you'll get an error immediately.
1. When a mock is destructed, Google Mock will automatically check whether all expectations on it have been satisfied.
Here's an example:
```
#include "path/to/mock-turtle.h"
#include "gmock/gmock.h"
#include "gtest/gtest.h"
using ::testing::AtLeast; // #1
TEST(PainterTest, CanDrawSomething) {
MockTurtle turtle; // #2
EXPECT_CALL(turtle, PenDown()) // #3
.Times(AtLeast(1));
Painter painter(&turtle); // #4
EXPECT_TRUE(painter.DrawCircle(0, 0, 10));
} // #5
int main(int argc, char** argv) {
// The following line must be executed to initialize Google Mock
// (and Google Test) before running the tests.
::testing::InitGoogleMock(&argc, argv);
return RUN_ALL_TESTS();
}
```
As you might have guessed, this test checks that `PenDown()` is called at least once. If the `painter` object didn't call this method, your test will fail with a message like this:
```
path/to/my_test.cc:119: Failure
Actual function call count doesn't match this expectation:
Actually: never called;
Expected: called at least once.
```
**Tip 1:** If you run the test from an Emacs buffer, you can hit `<Enter>` on the line number displayed in the error message to jump right to the failed expectation.
**Tip 2:** If your mock objects are never deleted, the final verification won't happen. Therefore it's a good idea to use a heap leak checker in your tests when you allocate mocks on the heap.
**Important note:** Google Mock requires expectations to be set **before** the mock functions are called, otherwise the behavior is **undefined**. In particular, you mustn't interleave `EXPECT_CALL()`s and calls to the mock functions.
This means `EXPECT_CALL()` should be read as expecting that a call will occur _in the future_, not that a call has occurred. Why does Google Mock work like that? Well, specifying the expectation beforehand allows Google Mock to report a violation as soon as it arises, when the context (stack trace, etc) is still available. This makes debugging much easier.
Admittedly, this test is contrived and doesn't do much. You can easily achieve the same effect without using Google Mock. However, as we shall reveal soon, Google Mock allows you to do _much more_ with the mocks.
## Using Google Mock with Any Testing Framework ##
If you want to use something other than Google Test (e.g. [CppUnit](http://apps.sourceforge.net/mediawiki/cppunit/index.php?title=Main_Page) or
[CxxTest](http://cxxtest.tigris.org/)) as your testing framework, just change the `main()` function in the previous section to:
```
int main(int argc, char** argv) {
// The following line causes Google Mock to throw an exception on failure,
// which will be interpreted by your testing framework as a test failure.
::testing::GTEST_FLAG(throw_on_failure) = true;
::testing::InitGoogleMock(&argc, argv);
... whatever your testing framework requires ...
}
```
This approach has a catch: it makes Google Mock throw an exception
from a mock object's destructor sometimes. With some compilers, this
sometimes causes the test program to crash. You'll still be able to
notice that the test has failed, but it's not a graceful failure.
A better solution is to use Google Test's
[event listener API](http://code.google.com/p/googletest/wiki/AdvancedGuide#Extending_Google_Test_by_Handling_Test_Events)
to report a test failure to your testing framework properly. You'll need to
implement the `OnTestPartResult()` method of the event listener interface, but it
should be straightforward.
If this turns out to be too much work, we suggest that you stick with
Google Test, which works with Google Mock seamlessly (in fact, it is
technically part of Google Mock.). If there is a reason that you
cannot use Google Test, please let us know.
# Setting Expectations #
The key to using a mock object successfully is to set the _right expectations_ on it. If you set the expectations too strict, your test will fail as the result of unrelated changes. If you set them too loose, bugs can slip through. You want to do it just right such that your test can catch exactly the kind of bugs you intend it to catch. Google Mock provides the necessary means for you to do it "just right."
## General Syntax ##
In Google Mock we use the `EXPECT_CALL()` macro to set an expectation on a mock method. The general syntax is:
```
EXPECT_CALL(mock_object, method(matchers))
.Times(cardinality)
.WillOnce(action)
.WillRepeatedly(action);
```
The macro has two arguments: first the mock object, and then the method and its arguments. Note that the two are separated by a comma (`,`), not a period (`.`). (Why using a comma? The answer is that it was necessary for technical reasons.)
The macro can be followed by some optional _clauses_ that provide more information about the expectation. We'll discuss how each clause works in the coming sections.
This syntax is designed to make an expectation read like English. For example, you can probably guess that
```
using ::testing::Return;...
EXPECT_CALL(turtle, GetX())
.Times(5)
.WillOnce(Return(100))
.WillOnce(Return(150))
.WillRepeatedly(Return(200));
```
says that the `turtle` object's `GetX()` method will be called five times, it will return 100 the first time, 150 the second time, and then 200 every time. Some people like to call this style of syntax a Domain-Specific Language (DSL).
**Note:** Why do we use a macro to do this? It serves two purposes: first it makes expectations easily identifiable (either by `grep` or by a human reader), and second it allows Google Mock to include the source file location of a failed expectation in messages, making debugging easier.
## Matchers: What Arguments Do We Expect? ##
When a mock function takes arguments, we must specify what arguments we are expecting; for example:
```
// Expects the turtle to move forward by 100 units.
EXPECT_CALL(turtle, Forward(100));
```
Sometimes you may not want to be too specific (Remember that talk about tests being too rigid? Over specification leads to brittle tests and obscures the intent of tests. Therefore we encourage you to specify only what's necessary - no more, no less.). If you care to check that `Forward()` will be called but aren't interested in its actual argument, write `_` as the argument, which means "anything goes":
```
using ::testing::_;
...
// Expects the turtle to move forward.
EXPECT_CALL(turtle, Forward(_));
```
`_` is an instance of what we call **matchers**. A matcher is like a predicate and can test whether an argument is what we'd expect. You can use a matcher inside `EXPECT_CALL()` wherever a function argument is expected.
A list of built-in matchers can be found in the [CheatSheet](V1_7_CheatSheet.md). For example, here's the `Ge` (greater than or equal) matcher:
```
using ::testing::Ge;...
EXPECT_CALL(turtle, Forward(Ge(100)));
```
This checks that the turtle will be told to go forward by at least 100 units.
## Cardinalities: How Many Times Will It Be Called? ##
The first clause we can specify following an `EXPECT_CALL()` is `Times()`. We call its argument a **cardinality** as it tells _how many times_ the call should occur. It allows us to repeat an expectation many times without actually writing it as many times. More importantly, a cardinality can be "fuzzy", just like a matcher can be. This allows a user to express the intent of a test exactly.
An interesting special case is when we say `Times(0)`. You may have guessed - it means that the function shouldn't be called with the given arguments at all, and Google Mock will report a Google Test failure whenever the function is (wrongfully) called.
We've seen `AtLeast(n)` as an example of fuzzy cardinalities earlier. For the list of built-in cardinalities you can use, see the [CheatSheet](V1_7_CheatSheet.md).
The `Times()` clause can be omitted. **If you omit `Times()`, Google Mock will infer the cardinality for you.** The rules are easy to remember:
* If **neither** `WillOnce()` **nor** `WillRepeatedly()` is in the `EXPECT_CALL()`, the inferred cardinality is `Times(1)`.
* If there are `n WillOnce()`'s but **no** `WillRepeatedly()`, where `n` >= 1, the cardinality is `Times(n)`.
* If there are `n WillOnce()`'s and **one** `WillRepeatedly()`, where `n` >= 0, the cardinality is `Times(AtLeast(n))`.
**Quick quiz:** what do you think will happen if a function is expected to be called twice but actually called four times?
## Actions: What Should It Do? ##
Remember that a mock object doesn't really have a working implementation? We as users have to tell it what to do when a method is invoked. This is easy in Google Mock.
First, if the return type of a mock function is a built-in type or a pointer, the function has a **default action** (a `void` function will just return, a `bool` function will return `false`, and other functions will return 0). If you don't say anything, this behavior will be used.
Second, if a mock function doesn't have a default action, or the default action doesn't suit you, you can specify the action to be taken each time the expectation matches using a series of `WillOnce()` clauses followed by an optional `WillRepeatedly()`. For example,
```
using ::testing::Return;...
EXPECT_CALL(turtle, GetX())
.WillOnce(Return(100))
.WillOnce(Return(200))
.WillOnce(Return(300));
```
This says that `turtle.GetX()` will be called _exactly three times_ (Google Mock inferred this from how many `WillOnce()` clauses we've written, since we didn't explicitly write `Times()`), and will return 100, 200, and 300 respectively.
```
using ::testing::Return;...
EXPECT_CALL(turtle, GetY())
.WillOnce(Return(100))
.WillOnce(Return(200))
.WillRepeatedly(Return(300));
```
says that `turtle.GetY()` will be called _at least twice_ (Google Mock knows this as we've written two `WillOnce()` clauses and a `WillRepeatedly()` while having no explicit `Times()`), will return 100 the first time, 200 the second time, and 300 from the third time on.
Of course, if you explicitly write a `Times()`, Google Mock will not try to infer the cardinality itself. What if the number you specified is larger than there are `WillOnce()` clauses? Well, after all `WillOnce()`s are used up, Google Mock will do the _default_ action for the function every time (unless, of course, you have a `WillRepeatedly()`.).
What can we do inside `WillOnce()` besides `Return()`? You can return a reference using `ReturnRef(variable)`, or invoke a pre-defined function, among [others](http://code.google.com/p/googlemock/wiki/V1_7_CheatSheet#Actions).
**Important note:** The `EXPECT_CALL()` statement evaluates the action clause only once, even though the action may be performed many times. Therefore you must be careful about side effects. The following may not do what you want:
```
int n = 100;
EXPECT_CALL(turtle, GetX())
.Times(4)
.WillRepeatedly(Return(n++));
```
Instead of returning 100, 101, 102, ..., consecutively, this mock function will always return 100 as `n++` is only evaluated once. Similarly, `Return(new Foo)` will create a new `Foo` object when the `EXPECT_CALL()` is executed, and will return the same pointer every time. If you want the side effect to happen every time, you need to define a custom action, which we'll teach in the [CookBook](V1_7_CookBook.md).
Time for another quiz! What do you think the following means?
```
using ::testing::Return;...
EXPECT_CALL(turtle, GetY())
.Times(4)
.WillOnce(Return(100));
```
Obviously `turtle.GetY()` is expected to be called four times. But if you think it will return 100 every time, think twice! Remember that one `WillOnce()` clause will be consumed each time the function is invoked and the default action will be taken afterwards. So the right answer is that `turtle.GetY()` will return 100 the first time, but **return 0 from the second time on**, as returning 0 is the default action for `int` functions.
## Using Multiple Expectations ##
So far we've only shown examples where you have a single expectation. More realistically, you're going to specify expectations on multiple mock methods, which may be from multiple mock objects.
By default, when a mock method is invoked, Google Mock will search the expectations in the **reverse order** they are defined, and stop when an active expectation that matches the arguments is found (you can think of it as "newer rules override older ones."). If the matching expectation cannot take any more calls, you will get an upper-bound-violated failure. Here's an example:
```
using ::testing::_;...
EXPECT_CALL(turtle, Forward(_)); // #1
EXPECT_CALL(turtle, Forward(10)) // #2
.Times(2);
```
If `Forward(10)` is called three times in a row, the third time it will be an error, as the last matching expectation (#2) has been saturated. If, however, the third `Forward(10)` call is replaced by `Forward(20)`, then it would be OK, as now #1 will be the matching expectation.
**Side note:** Why does Google Mock search for a match in the _reverse_ order of the expectations? The reason is that this allows a user to set up the default expectations in a mock object's constructor or the test fixture's set-up phase and then customize the mock by writing more specific expectations in the test body. So, if you have two expectations on the same method, you want to put the one with more specific matchers **after** the other, or the more specific rule would be shadowed by the more general one that comes after it.
## Ordered vs Unordered Calls ##
By default, an expectation can match a call even though an earlier expectation hasn't been satisfied. In other words, the calls don't have to occur in the order the expectations are specified.
Sometimes, you may want all the expected calls to occur in a strict order. To say this in Google Mock is easy:
```
using ::testing::InSequence;...
TEST(FooTest, DrawsLineSegment) {
...
{
InSequence dummy;
EXPECT_CALL(turtle, PenDown());
EXPECT_CALL(turtle, Forward(100));
EXPECT_CALL(turtle, PenUp());
}
Foo();
}
```
By creating an object of type `InSequence`, all expectations in its scope are put into a _sequence_ and have to occur _sequentially_. Since we are just relying on the constructor and destructor of this object to do the actual work, its name is really irrelevant.
In this example, we test that `Foo()` calls the three expected functions in the order as written. If a call is made out-of-order, it will be an error.
(What if you care about the relative order of some of the calls, but not all of them? Can you specify an arbitrary partial order? The answer is ... yes! If you are impatient, the details can be found in the [CookBook](V1_7_CookBook#Expecting_Partially_Ordered_Calls.md).)
## All Expectations Are Sticky (Unless Said Otherwise) ##
Now let's do a quick quiz to see how well you can use this mock stuff already. How would you test that the turtle is asked to go to the origin _exactly twice_ (you want to ignore any other instructions it receives)?
After you've come up with your answer, take a look at ours and compare notes (solve it yourself first - don't cheat!):
```
using ::testing::_;...
EXPECT_CALL(turtle, GoTo(_, _)) // #1
.Times(AnyNumber());
EXPECT_CALL(turtle, GoTo(0, 0)) // #2
.Times(2);
```
Suppose `turtle.GoTo(0, 0)` is called three times. In the third time, Google Mock will see that the arguments match expectation #2 (remember that we always pick the last matching expectation). Now, since we said that there should be only two such calls, Google Mock will report an error immediately. This is basically what we've told you in the "Using Multiple Expectations" section above.
This example shows that **expectations in Google Mock are "sticky" by default**, in the sense that they remain active even after we have reached their invocation upper bounds. This is an important rule to remember, as it affects the meaning of the spec, and is **different** to how it's done in many other mocking frameworks (Why'd we do that? Because we think our rule makes the common cases easier to express and understand.).
Simple? Let's see if you've really understood it: what does the following code say?
```
using ::testing::Return;
...
for (int i = n; i > 0; i--) {
EXPECT_CALL(turtle, GetX())
.WillOnce(Return(10*i));
}
```
If you think it says that `turtle.GetX()` will be called `n` times and will return 10, 20, 30, ..., consecutively, think twice! The problem is that, as we said, expectations are sticky. So, the second time `turtle.GetX()` is called, the last (latest) `EXPECT_CALL()` statement will match, and will immediately lead to an "upper bound exceeded" error - this piece of code is not very useful!
One correct way of saying that `turtle.GetX()` will return 10, 20, 30, ..., is to explicitly say that the expectations are _not_ sticky. In other words, they should _retire_ as soon as they are saturated:
```
using ::testing::Return;
...
for (int i = n; i > 0; i--) {
EXPECT_CALL(turtle, GetX())
.WillOnce(Return(10*i))
.RetiresOnSaturation();
}
```
And, there's a better way to do it: in this case, we expect the calls to occur in a specific order, and we line up the actions to match the order. Since the order is important here, we should make it explicit using a sequence:
```
using ::testing::InSequence;
using ::testing::Return;
...
{
InSequence s;
for (int i = 1; i <= n; i++) {
EXPECT_CALL(turtle, GetX())
.WillOnce(Return(10*i))
.RetiresOnSaturation();
}
}
```
By the way, the other situation where an expectation may _not_ be sticky is when it's in a sequence - as soon as another expectation that comes after it in the sequence has been used, it automatically retires (and will never be used to match any call).
## Uninteresting Calls ##
A mock object may have many methods, and not all of them are that interesting. For example, in some tests we may not care about how many times `GetX()` and `GetY()` get called.
In Google Mock, if you are not interested in a method, just don't say anything about it. If a call to this method occurs, you'll see a warning in the test output, but it won't be a failure.
# What Now? #
Congratulations! You've learned enough about Google Mock to start using it. Now, you might want to join the [googlemock](http://groups.google.com/group/googlemock) discussion group and actually write some tests using Google Mock - it will be fun. Hey, it may even be addictive - you've been warned.
Then, if you feel like increasing your mock quotient, you should move on to the [CookBook](V1_7_CookBook.md). You can learn many advanced features of Google Mock there -- and advance your level of enjoyment and testing bliss.

View File

@ -1,628 +0,0 @@
Please send your questions to the
[googlemock](http://groups.google.com/group/googlemock) discussion
group. If you need help with compiler errors, make sure you have
tried [Google Mock Doctor](#How_am_I_supposed_to_make_sense_of_these_horrible_template_error.md) first.
## When I call a method on my mock object, the method for the real object is invoked instead. What's the problem? ##
In order for a method to be mocked, it must be _virtual_, unless you use the [high-perf dependency injection technique](http://code.google.com/p/googlemock/wiki/V1_7_CookBook#Mocking_Nonvirtual_Methods).
## I wrote some matchers. After I upgraded to a new version of Google Mock, they no longer compile. What's going on? ##
After version 1.4.0 of Google Mock was released, we had an idea on how
to make it easier to write matchers that can generate informative
messages efficiently. We experimented with this idea and liked what
we saw. Therefore we decided to implement it.
Unfortunately, this means that if you have defined your own matchers
by implementing `MatcherInterface` or using `MakePolymorphicMatcher()`,
your definitions will no longer compile. Matchers defined using the
`MATCHER*` family of macros are not affected.
Sorry for the hassle if your matchers are affected. We believe it's
in everyone's long-term interest to make this change sooner than
later. Fortunately, it's usually not hard to migrate an existing
matcher to the new API. Here's what you need to do:
If you wrote your matcher like this:
```
// Old matcher definition that doesn't work with the latest
// Google Mock.
using ::testing::MatcherInterface;
...
class MyWonderfulMatcher : public MatcherInterface<MyType> {
public:
...
virtual bool Matches(MyType value) const {
// Returns true if value matches.
return value.GetFoo() > 5;
}
...
};
```
you'll need to change it to:
```
// New matcher definition that works with the latest Google Mock.
using ::testing::MatcherInterface;
using ::testing::MatchResultListener;
...
class MyWonderfulMatcher : public MatcherInterface<MyType> {
public:
...
virtual bool MatchAndExplain(MyType value,
MatchResultListener* listener) const {
// Returns true if value matches.
return value.GetFoo() > 5;
}
...
};
```
(i.e. rename `Matches()` to `MatchAndExplain()` and give it a second
argument of type `MatchResultListener*`.)
If you were also using `ExplainMatchResultTo()` to improve the matcher
message:
```
// Old matcher definition that doesn't work with the lastest
// Google Mock.
using ::testing::MatcherInterface;
...
class MyWonderfulMatcher : public MatcherInterface<MyType> {
public:
...
virtual bool Matches(MyType value) const {
// Returns true if value matches.
return value.GetFoo() > 5;
}
virtual void ExplainMatchResultTo(MyType value,
::std::ostream* os) const {
// Prints some helpful information to os to help
// a user understand why value matches (or doesn't match).
*os << "the Foo property is " << value.GetFoo();
}
...
};
```
you should move the logic of `ExplainMatchResultTo()` into
`MatchAndExplain()`, using the `MatchResultListener` argument where
the `::std::ostream` was used:
```
// New matcher definition that works with the latest Google Mock.
using ::testing::MatcherInterface;
using ::testing::MatchResultListener;
...
class MyWonderfulMatcher : public MatcherInterface<MyType> {
public:
...
virtual bool MatchAndExplain(MyType value,
MatchResultListener* listener) const {
// Returns true if value matches.
*listener << "the Foo property is " << value.GetFoo();
return value.GetFoo() > 5;
}
...
};
```
If your matcher is defined using `MakePolymorphicMatcher()`:
```
// Old matcher definition that doesn't work with the latest
// Google Mock.
using ::testing::MakePolymorphicMatcher;
...
class MyGreatMatcher {
public:
...
bool Matches(MyType value) const {
// Returns true if value matches.
return value.GetBar() < 42;
}
...
};
... MakePolymorphicMatcher(MyGreatMatcher()) ...
```
you should rename the `Matches()` method to `MatchAndExplain()` and
add a `MatchResultListener*` argument (the same as what you need to do
for matchers defined by implementing `MatcherInterface`):
```
// New matcher definition that works with the latest Google Mock.
using ::testing::MakePolymorphicMatcher;
using ::testing::MatchResultListener;
...
class MyGreatMatcher {
public:
...
bool MatchAndExplain(MyType value,
MatchResultListener* listener) const {
// Returns true if value matches.
return value.GetBar() < 42;
}
...
};
... MakePolymorphicMatcher(MyGreatMatcher()) ...
```
If your polymorphic matcher uses `ExplainMatchResultTo()` for better
failure messages:
```
// Old matcher definition that doesn't work with the latest
// Google Mock.
using ::testing::MakePolymorphicMatcher;
...
class MyGreatMatcher {
public:
...
bool Matches(MyType value) const {
// Returns true if value matches.
return value.GetBar() < 42;
}
...
};
void ExplainMatchResultTo(const MyGreatMatcher& matcher,
MyType value,
::std::ostream* os) {
// Prints some helpful information to os to help
// a user understand why value matches (or doesn't match).
*os << "the Bar property is " << value.GetBar();
}
... MakePolymorphicMatcher(MyGreatMatcher()) ...
```
you'll need to move the logic inside `ExplainMatchResultTo()` to
`MatchAndExplain()`:
```
// New matcher definition that works with the latest Google Mock.
using ::testing::MakePolymorphicMatcher;
using ::testing::MatchResultListener;
...
class MyGreatMatcher {
public:
...
bool MatchAndExplain(MyType value,
MatchResultListener* listener) const {
// Returns true if value matches.
*listener << "the Bar property is " << value.GetBar();
return value.GetBar() < 42;
}
...
};
... MakePolymorphicMatcher(MyGreatMatcher()) ...
```
For more information, you can read these
[two](http://code.google.com/p/googlemock/wiki/V1_7_CookBook#Writing_New_Monomorphic_Matchers)
[recipes](http://code.google.com/p/googlemock/wiki/V1_7_CookBook#Writing_New_Polymorphic_Matchers)
from the cookbook. As always, you
are welcome to post questions on `googlemock@googlegroups.com` if you
need any help.
## When using Google Mock, do I have to use Google Test as the testing framework? I have my favorite testing framework and don't want to switch. ##
Google Mock works out of the box with Google Test. However, it's easy
to configure it to work with any testing framework of your choice.
[Here](http://code.google.com/p/googlemock/wiki/V1_7_ForDummies#Using_Google_Mock_with_Any_Testing_Framework) is how.
## How am I supposed to make sense of these horrible template errors? ##
If you are confused by the compiler errors gcc threw at you,
try consulting the _Google Mock Doctor_ tool first. What it does is to
scan stdin for gcc error messages, and spit out diagnoses on the
problems (we call them diseases) your code has.
To "install", run command:
```
alias gmd='<path to googlemock>/scripts/gmock_doctor.py'
```
To use it, do:
```
<your-favorite-build-command> <your-test> 2>&1 | gmd
```
For example:
```
make my_test 2>&1 | gmd
```
Or you can run `gmd` and copy-n-paste gcc's error messages to it.
## Can I mock a variadic function? ##
You cannot mock a variadic function (i.e. a function taking ellipsis
(`...`) arguments) directly in Google Mock.
The problem is that in general, there is _no way_ for a mock object to
know how many arguments are passed to the variadic method, and what
the arguments' types are. Only the _author of the base class_ knows
the protocol, and we cannot look into his head.
Therefore, to mock such a function, the _user_ must teach the mock
object how to figure out the number of arguments and their types. One
way to do it is to provide overloaded versions of the function.
Ellipsis arguments are inherited from C and not really a C++ feature.
They are unsafe to use and don't work with arguments that have
constructors or destructors. Therefore we recommend to avoid them in
C++ as much as possible.
## MSVC gives me warning C4301 or C4373 when I define a mock method with a const parameter. Why? ##
If you compile this using Microsoft Visual C++ 2005 SP1:
```
class Foo {
...
virtual void Bar(const int i) = 0;
};
class MockFoo : public Foo {
...
MOCK_METHOD1(Bar, void(const int i));
};
```
You may get the following warning:
```
warning C4301: 'MockFoo::Bar': overriding virtual function only differs from 'Foo::Bar' by const/volatile qualifier
```
This is a MSVC bug. The same code compiles fine with gcc ,for
example. If you use Visual C++ 2008 SP1, you would get the warning:
```
warning C4373: 'MockFoo::Bar': virtual function overrides 'Foo::Bar', previous versions of the compiler did not override when parameters only differed by const/volatile qualifiers
```
In C++, if you _declare_ a function with a `const` parameter, the
`const` modifier is _ignored_. Therefore, the `Foo` base class above
is equivalent to:
```
class Foo {
...
virtual void Bar(int i) = 0; // int or const int? Makes no difference.
};
```
In fact, you can _declare_ Bar() with an `int` parameter, and _define_
it with a `const int` parameter. The compiler will still match them
up.
Since making a parameter `const` is meaningless in the method
_declaration_, we recommend to remove it in both `Foo` and `MockFoo`.
That should workaround the VC bug.
Note that we are talking about the _top-level_ `const` modifier here.
If the function parameter is passed by pointer or reference, declaring
the _pointee_ or _referee_ as `const` is still meaningful. For
example, the following two declarations are _not_ equivalent:
```
void Bar(int* p); // Neither p nor *p is const.
void Bar(const int* p); // p is not const, but *p is.
```
## I have a huge mock class, and Microsoft Visual C++ runs out of memory when compiling it. What can I do? ##
We've noticed that when the `/clr` compiler flag is used, Visual C++
uses 5~6 times as much memory when compiling a mock class. We suggest
to avoid `/clr` when compiling native C++ mocks.
## I can't figure out why Google Mock thinks my expectations are not satisfied. What should I do? ##
You might want to run your test with
`--gmock_verbose=info`. This flag lets Google Mock print a trace
of every mock function call it receives. By studying the trace,
you'll gain insights on why the expectations you set are not met.
## How can I assert that a function is NEVER called? ##
```
EXPECT_CALL(foo, Bar(_))
.Times(0);
```
## I have a failed test where Google Mock tells me TWICE that a particular expectation is not satisfied. Isn't this redundant? ##
When Google Mock detects a failure, it prints relevant information
(the mock function arguments, the state of relevant expectations, and
etc) to help the user debug. If another failure is detected, Google
Mock will do the same, including printing the state of relevant
expectations.
Sometimes an expectation's state didn't change between two failures,
and you'll see the same description of the state twice. They are
however _not_ redundant, as they refer to _different points in time_.
The fact they are the same _is_ interesting information.
## I get a heap check failure when using a mock object, but using a real object is fine. What can be wrong? ##
Does the class (hopefully a pure interface) you are mocking have a
virtual destructor?
Whenever you derive from a base class, make sure its destructor is
virtual. Otherwise Bad Things will happen. Consider the following
code:
```
class Base {
public:
// Not virtual, but should be.
~Base() { ... }
...
};
class Derived : public Base {
public:
...
private:
std::string value_;
};
...
Base* p = new Derived;
...
delete p; // Surprise! ~Base() will be called, but ~Derived() will not
// - value_ is leaked.
```
By changing `~Base()` to virtual, `~Derived()` will be correctly
called when `delete p` is executed, and the heap checker
will be happy.
## The "newer expectations override older ones" rule makes writing expectations awkward. Why does Google Mock do that? ##
When people complain about this, often they are referring to code like:
```
// foo.Bar() should be called twice, return 1 the first time, and return
// 2 the second time. However, I have to write the expectations in the
// reverse order. This sucks big time!!!
EXPECT_CALL(foo, Bar())
.WillOnce(Return(2))
.RetiresOnSaturation();
EXPECT_CALL(foo, Bar())
.WillOnce(Return(1))
.RetiresOnSaturation();
```
The problem is that they didn't pick the **best** way to express the test's
intent.
By default, expectations don't have to be matched in _any_ particular
order. If you want them to match in a certain order, you need to be
explicit. This is Google Mock's (and jMock's) fundamental philosophy: it's
easy to accidentally over-specify your tests, and we want to make it
harder to do so.
There are two better ways to write the test spec. You could either
put the expectations in sequence:
```
// foo.Bar() should be called twice, return 1 the first time, and return
// 2 the second time. Using a sequence, we can write the expectations
// in their natural order.
{
InSequence s;
EXPECT_CALL(foo, Bar())
.WillOnce(Return(1))
.RetiresOnSaturation();
EXPECT_CALL(foo, Bar())
.WillOnce(Return(2))
.RetiresOnSaturation();
}
```
or you can put the sequence of actions in the same expectation:
```
// foo.Bar() should be called twice, return 1 the first time, and return
// 2 the second time.
EXPECT_CALL(foo, Bar())
.WillOnce(Return(1))
.WillOnce(Return(2))
.RetiresOnSaturation();
```
Back to the original questions: why does Google Mock search the
expectations (and `ON_CALL`s) from back to front? Because this
allows a user to set up a mock's behavior for the common case early
(e.g. in the mock's constructor or the test fixture's set-up phase)
and customize it with more specific rules later. If Google Mock
searches from front to back, this very useful pattern won't be
possible.
## Google Mock prints a warning when a function without EXPECT\_CALL is called, even if I have set its behavior using ON\_CALL. Would it be reasonable not to show the warning in this case? ##
When choosing between being neat and being safe, we lean toward the
latter. So the answer is that we think it's better to show the
warning.
Often people write `ON_CALL`s in the mock object's
constructor or `SetUp()`, as the default behavior rarely changes from
test to test. Then in the test body they set the expectations, which
are often different for each test. Having an `ON_CALL` in the set-up
part of a test doesn't mean that the calls are expected. If there's
no `EXPECT_CALL` and the method is called, it's possibly an error. If
we quietly let the call go through without notifying the user, bugs
may creep in unnoticed.
If, however, you are sure that the calls are OK, you can write
```
EXPECT_CALL(foo, Bar(_))
.WillRepeatedly(...);
```
instead of
```
ON_CALL(foo, Bar(_))
.WillByDefault(...);
```
This tells Google Mock that you do expect the calls and no warning should be
printed.
Also, you can control the verbosity using the `--gmock_verbose` flag.
If you find the output too noisy when debugging, just choose a less
verbose level.
## How can I delete the mock function's argument in an action? ##
If you find yourself needing to perform some action that's not
supported by Google Mock directly, remember that you can define your own
actions using
[MakeAction()](http://code.google.com/p/googlemock/wiki/V1_7_CookBook#Writing_New_Actions) or
[MakePolymorphicAction()](http://code.google.com/p/googlemock/wiki/V1_7_CookBook#Writing_New_Polymorphic_Actions),
or you can write a stub function and invoke it using
[Invoke()](http://code.google.com/p/googlemock/wiki/V1_7_CookBook#Using_Functions_Methods_Functors).
## MOCK\_METHODn()'s second argument looks funny. Why don't you use the MOCK\_METHODn(Method, return\_type, arg\_1, ..., arg\_n) syntax? ##
What?! I think it's beautiful. :-)
While which syntax looks more natural is a subjective matter to some
extent, Google Mock's syntax was chosen for several practical advantages it
has.
Try to mock a function that takes a map as an argument:
```
virtual int GetSize(const map<int, std::string>& m);
```
Using the proposed syntax, it would be:
```
MOCK_METHOD1(GetSize, int, const map<int, std::string>& m);
```
Guess what? You'll get a compiler error as the compiler thinks that
`const map<int, std::string>& m` are **two**, not one, arguments. To work
around this you can use `typedef` to give the map type a name, but
that gets in the way of your work. Google Mock's syntax avoids this
problem as the function's argument types are protected inside a pair
of parentheses:
```
// This compiles fine.
MOCK_METHOD1(GetSize, int(const map<int, std::string>& m));
```
You still need a `typedef` if the return type contains an unprotected
comma, but that's much rarer.
Other advantages include:
1. `MOCK_METHOD1(Foo, int, bool)` can leave a reader wonder whether the method returns `int` or `bool`, while there won't be such confusion using Google Mock's syntax.
1. The way Google Mock describes a function type is nothing new, although many people may not be familiar with it. The same syntax was used in C, and the `function` library in `tr1` uses this syntax extensively. Since `tr1` will become a part of the new version of STL, we feel very comfortable to be consistent with it.
1. The function type syntax is also used in other parts of Google Mock's API (e.g. the action interface) in order to make the implementation tractable. A user needs to learn it anyway in order to utilize Google Mock's more advanced features. We'd as well stick to the same syntax in `MOCK_METHOD*`!
## My code calls a static/global function. Can I mock it? ##
You can, but you need to make some changes.
In general, if you find yourself needing to mock a static function,
it's a sign that your modules are too tightly coupled (and less
flexible, less reusable, less testable, etc). You are probably better
off defining a small interface and call the function through that
interface, which then can be easily mocked. It's a bit of work
initially, but usually pays for itself quickly.
This Google Testing Blog
[post](http://googletesting.blogspot.com/2008/06/defeat-static-cling.html)
says it excellently. Check it out.
## My mock object needs to do complex stuff. It's a lot of pain to specify the actions. Google Mock sucks! ##
I know it's not a question, but you get an answer for free any way. :-)
With Google Mock, you can create mocks in C++ easily. And people might be
tempted to use them everywhere. Sometimes they work great, and
sometimes you may find them, well, a pain to use. So, what's wrong in
the latter case?
When you write a test without using mocks, you exercise the code and
assert that it returns the correct value or that the system is in an
expected state. This is sometimes called "state-based testing".
Mocks are great for what some call "interaction-based" testing:
instead of checking the system state at the very end, mock objects
verify that they are invoked the right way and report an error as soon
as it arises, giving you a handle on the precise context in which the
error was triggered. This is often more effective and economical to
do than state-based testing.
If you are doing state-based testing and using a test double just to
simulate the real object, you are probably better off using a fake.
Using a mock in this case causes pain, as it's not a strong point for
mocks to perform complex actions. If you experience this and think
that mocks suck, you are just not using the right tool for your
problem. Or, you might be trying to solve the wrong problem. :-)
## I got a warning "Uninteresting function call encountered - default action taken.." Should I panic? ##
By all means, NO! It's just an FYI.
What it means is that you have a mock function, you haven't set any
expectations on it (by Google Mock's rule this means that you are not
interested in calls to this function and therefore it can be called
any number of times), and it is called. That's OK - you didn't say
it's not OK to call the function!
What if you actually meant to disallow this function to be called, but
forgot to write `EXPECT_CALL(foo, Bar()).Times(0)`? While
one can argue that it's the user's fault, Google Mock tries to be nice and
prints you a note.
So, when you see the message and believe that there shouldn't be any
uninteresting calls, you should investigate what's going on. To make
your life easier, Google Mock prints the function name and arguments
when an uninteresting call is encountered.
## I want to define a custom action. Should I use Invoke() or implement the action interface? ##
Either way is fine - you want to choose the one that's more convenient
for your circumstance.
Usually, if your action is for a particular function type, defining it
using `Invoke()` should be easier; if your action can be used in
functions of different types (e.g. if you are defining
`Return(value)`), `MakePolymorphicAction()` is
easiest. Sometimes you want precise control on what types of
functions the action can be used in, and implementing
`ActionInterface` is the way to go here. See the implementation of
`Return()` in `include/gmock/gmock-actions.h` for an example.
## I'm using the set-argument-pointee action, and the compiler complains about "conflicting return type specified". What does it mean? ##
You got this error as Google Mock has no idea what value it should return
when the mock method is called. `SetArgPointee()` says what the
side effect is, but doesn't say what the return value should be. You
need `DoAll()` to chain a `SetArgPointee()` with a `Return()`.
See this [recipe](http://code.google.com/p/googlemock/wiki/V1_7_CookBook#Mocking_Side_Effects) for more details and an example.
## My question is not in your FAQ! ##
If you cannot find the answer to your question in this FAQ, there are
some other resources you can use:
1. read other [wiki pages](http://code.google.com/p/googlemock/w/list),
1. search the mailing list [archive](http://groups.google.com/group/googlemock/topics),
1. ask it on [googlemock@googlegroups.com](mailto:googlemock@googlegroups.com) and someone will answer it (to prevent spam, we require you to join the [discussion group](http://groups.google.com/group/googlemock) before you can post.).
Please note that creating an issue in the
[issue tracker](http://code.google.com/p/googlemock/issues/list) is _not_
a good way to get your answer, as it is monitored infrequently by a
very small number of people.
When asking a question, it's helpful to provide as much of the
following information as possible (people cannot help you if there's
not enough information in your question):
* the version (or the revision number if you check out from SVN directly) of Google Mock you use (Google Mock is under active development, so it's possible that your problem has been solved in a later version),
* your operating system,
* the name and version of your compiler,
* the complete command line flags you give to your compiler,
* the complete compiler error messages (if the question is about compilation),
* the _actual_ code (ideally, a minimal but complete program) that has the problem you encounter.

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@ -1,147 +0,0 @@
// Copyright 2007, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Author: wan@google.com (Zhanyong Wan)
// Google Mock - a framework for writing C++ mock classes.
//
// This file implements some commonly used cardinalities. More
// cardinalities can be defined by the user implementing the
// CardinalityInterface interface if necessary.
#ifndef GMOCK_INCLUDE_GMOCK_GMOCK_CARDINALITIES_H_
#define GMOCK_INCLUDE_GMOCK_GMOCK_CARDINALITIES_H_
#include <limits.h>
#include <ostream> // NOLINT
#include "gmock/internal/gmock-port.h"
#include "gtest/gtest.h"
namespace testing {
// To implement a cardinality Foo, define:
// 1. a class FooCardinality that implements the
// CardinalityInterface interface, and
// 2. a factory function that creates a Cardinality object from a
// const FooCardinality*.
//
// The two-level delegation design follows that of Matcher, providing
// consistency for extension developers. It also eases ownership
// management as Cardinality objects can now be copied like plain values.
// The implementation of a cardinality.
class CardinalityInterface {
public:
virtual ~CardinalityInterface() {}
// Conservative estimate on the lower/upper bound of the number of
// calls allowed.
virtual int ConservativeLowerBound() const { return 0; }
virtual int ConservativeUpperBound() const { return INT_MAX; }
// Returns true iff call_count calls will satisfy this cardinality.
virtual bool IsSatisfiedByCallCount(int call_count) const = 0;
// Returns true iff call_count calls will saturate this cardinality.
virtual bool IsSaturatedByCallCount(int call_count) const = 0;
// Describes self to an ostream.
virtual void DescribeTo(::std::ostream* os) const = 0;
};
// A Cardinality is a copyable and IMMUTABLE (except by assignment)
// object that specifies how many times a mock function is expected to
// be called. The implementation of Cardinality is just a linked_ptr
// to const CardinalityInterface, so copying is fairly cheap.
// Don't inherit from Cardinality!
class GTEST_API_ Cardinality {
public:
// Constructs a null cardinality. Needed for storing Cardinality
// objects in STL containers.
Cardinality() {}
// Constructs a Cardinality from its implementation.
explicit Cardinality(const CardinalityInterface* impl) : impl_(impl) {}
// Conservative estimate on the lower/upper bound of the number of
// calls allowed.
int ConservativeLowerBound() const { return impl_->ConservativeLowerBound(); }
int ConservativeUpperBound() const { return impl_->ConservativeUpperBound(); }
// Returns true iff call_count calls will satisfy this cardinality.
bool IsSatisfiedByCallCount(int call_count) const {
return impl_->IsSatisfiedByCallCount(call_count);
}
// Returns true iff call_count calls will saturate this cardinality.
bool IsSaturatedByCallCount(int call_count) const {
return impl_->IsSaturatedByCallCount(call_count);
}
// Returns true iff call_count calls will over-saturate this
// cardinality, i.e. exceed the maximum number of allowed calls.
bool IsOverSaturatedByCallCount(int call_count) const {
return impl_->IsSaturatedByCallCount(call_count) &&
!impl_->IsSatisfiedByCallCount(call_count);
}
// Describes self to an ostream
void DescribeTo(::std::ostream* os) const { impl_->DescribeTo(os); }
// Describes the given actual call count to an ostream.
static void DescribeActualCallCountTo(int actual_call_count,
::std::ostream* os);
private:
internal::linked_ptr<const CardinalityInterface> impl_;
};
// Creates a cardinality that allows at least n calls.
GTEST_API_ Cardinality AtLeast(int n);
// Creates a cardinality that allows at most n calls.
GTEST_API_ Cardinality AtMost(int n);
// Creates a cardinality that allows any number of calls.
GTEST_API_ Cardinality AnyNumber();
// Creates a cardinality that allows between min and max calls.
GTEST_API_ Cardinality Between(int min, int max);
// Creates a cardinality that allows exactly n calls.
GTEST_API_ Cardinality Exactly(int n);
// Creates a cardinality from its implementation.
inline Cardinality MakeCardinality(const CardinalityInterface* c) {
return Cardinality(c);
}
} // namespace testing
#endif // GMOCK_INCLUDE_GMOCK_GMOCK_CARDINALITIES_H_

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@ -1,794 +0,0 @@
$$ -*- mode: c++; -*-
$$ This is a Pump source file. Please use Pump to convert it to
$$ gmock-generated-actions.h.
$$
$var n = 10 $$ The maximum arity we support.
$$}} This meta comment fixes auto-indentation in editors.
// Copyright 2007, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Author: wan@google.com (Zhanyong Wan)
// Google Mock - a framework for writing C++ mock classes.
//
// This file implements some commonly used variadic actions.
#ifndef GMOCK_INCLUDE_GMOCK_GMOCK_GENERATED_ACTIONS_H_
#define GMOCK_INCLUDE_GMOCK_GMOCK_GENERATED_ACTIONS_H_
#include "gmock/gmock-actions.h"
#include "gmock/internal/gmock-port.h"
namespace testing {
namespace internal {
// InvokeHelper<F> knows how to unpack an N-tuple and invoke an N-ary
// function or method with the unpacked values, where F is a function
// type that takes N arguments.
template <typename Result, typename ArgumentTuple>
class InvokeHelper;
$range i 0..n
$for i [[
$range j 1..i
$var types = [[$for j [[, typename A$j]]]]
$var as = [[$for j, [[A$j]]]]
$var args = [[$if i==0 [[]] $else [[ args]]]]
$var gets = [[$for j, [[get<$(j - 1)>(args)]]]]
template <typename R$types>
class InvokeHelper<R, ::testing::tuple<$as> > {
public:
template <typename Function>
static R Invoke(Function function, const ::testing::tuple<$as>&$args) {
return function($gets);
}
template <class Class, typename MethodPtr>
static R InvokeMethod(Class* obj_ptr,
MethodPtr method_ptr,
const ::testing::tuple<$as>&$args) {
return (obj_ptr->*method_ptr)($gets);
}
};
]]
// An INTERNAL macro for extracting the type of a tuple field. It's
// subject to change without notice - DO NOT USE IN USER CODE!
#define GMOCK_FIELD_(Tuple, N) \
typename ::testing::tuple_element<N, Tuple>::type
$range i 1..n
// SelectArgs<Result, ArgumentTuple, k1, k2, ..., k_n>::type is the
// type of an n-ary function whose i-th (1-based) argument type is the
// k{i}-th (0-based) field of ArgumentTuple, which must be a tuple
// type, and whose return type is Result. For example,
// SelectArgs<int, ::testing::tuple<bool, char, double, long>, 0, 3>::type
// is int(bool, long).
//
// SelectArgs<Result, ArgumentTuple, k1, k2, ..., k_n>::Select(args)
// returns the selected fields (k1, k2, ..., k_n) of args as a tuple.
// For example,
// SelectArgs<int, tuple<bool, char, double>, 2, 0>::Select(
// ::testing::make_tuple(true, 'a', 2.5))
// returns tuple (2.5, true).
//
// The numbers in list k1, k2, ..., k_n must be >= 0, where n can be
// in the range [0, $n]. Duplicates are allowed and they don't have
// to be in an ascending or descending order.
template <typename Result, typename ArgumentTuple, $for i, [[int k$i]]>
class SelectArgs {
public:
typedef Result type($for i, [[GMOCK_FIELD_(ArgumentTuple, k$i)]]);
typedef typename Function<type>::ArgumentTuple SelectedArgs;
static SelectedArgs Select(const ArgumentTuple& args) {
return SelectedArgs($for i, [[get<k$i>(args)]]);
}
};
$for i [[
$range j 1..n
$range j1 1..i-1
template <typename Result, typename ArgumentTuple$for j1[[, int k$j1]]>
class SelectArgs<Result, ArgumentTuple,
$for j, [[$if j <= i-1 [[k$j]] $else [[-1]]]]> {
public:
typedef Result type($for j1, [[GMOCK_FIELD_(ArgumentTuple, k$j1)]]);
typedef typename Function<type>::ArgumentTuple SelectedArgs;
static SelectedArgs Select(const ArgumentTuple& [[]]
$if i == 1 [[/* args */]] $else [[args]]) {
return SelectedArgs($for j1, [[get<k$j1>(args)]]);
}
};
]]
#undef GMOCK_FIELD_
$var ks = [[$for i, [[k$i]]]]
// Implements the WithArgs action.
template <typename InnerAction, $for i, [[int k$i = -1]]>
class WithArgsAction {
public:
explicit WithArgsAction(const InnerAction& action) : action_(action) {}
template <typename F>
operator Action<F>() const { return MakeAction(new Impl<F>(action_)); }
private:
template <typename F>
class Impl : public ActionInterface<F> {
public:
typedef typename Function<F>::Result Result;
typedef typename Function<F>::ArgumentTuple ArgumentTuple;
explicit Impl(const InnerAction& action) : action_(action) {}
virtual Result Perform(const ArgumentTuple& args) {
return action_.Perform(SelectArgs<Result, ArgumentTuple, $ks>::Select(args));
}
private:
typedef typename SelectArgs<Result, ArgumentTuple,
$ks>::type InnerFunctionType;
Action<InnerFunctionType> action_;
};
const InnerAction action_;
GTEST_DISALLOW_ASSIGN_(WithArgsAction);
};
// A macro from the ACTION* family (defined later in this file)
// defines an action that can be used in a mock function. Typically,
// these actions only care about a subset of the arguments of the mock
// function. For example, if such an action only uses the second
// argument, it can be used in any mock function that takes >= 2
// arguments where the type of the second argument is compatible.
//
// Therefore, the action implementation must be prepared to take more
// arguments than it needs. The ExcessiveArg type is used to
// represent those excessive arguments. In order to keep the compiler
// error messages tractable, we define it in the testing namespace
// instead of testing::internal. However, this is an INTERNAL TYPE
// and subject to change without notice, so a user MUST NOT USE THIS
// TYPE DIRECTLY.
struct ExcessiveArg {};
// A helper class needed for implementing the ACTION* macros.
template <typename Result, class Impl>
class ActionHelper {
public:
$range i 0..n
$for i
[[
$var template = [[$if i==0 [[]] $else [[
$range j 0..i-1
template <$for j, [[typename A$j]]>
]]]]
$range j 0..i-1
$var As = [[$for j, [[A$j]]]]
$var as = [[$for j, [[get<$j>(args)]]]]
$range k 1..n-i
$var eas = [[$for k, [[ExcessiveArg()]]]]
$var arg_list = [[$if (i==0) | (i==n) [[$as$eas]] $else [[$as, $eas]]]]
$template
static Result Perform(Impl* impl, const ::testing::tuple<$As>& args) {
return impl->template gmock_PerformImpl<$As>(args, $arg_list);
}
]]
};
} // namespace internal
// Various overloads for Invoke().
// WithArgs<N1, N2, ..., Nk>(an_action) creates an action that passes
// the selected arguments of the mock function to an_action and
// performs it. It serves as an adaptor between actions with
// different argument lists. C++ doesn't support default arguments for
// function templates, so we have to overload it.
$range i 1..n
$for i [[
$range j 1..i
template <$for j [[int k$j, ]]typename InnerAction>
inline internal::WithArgsAction<InnerAction$for j [[, k$j]]>
WithArgs(const InnerAction& action) {
return internal::WithArgsAction<InnerAction$for j [[, k$j]]>(action);
}
]]
// Creates an action that does actions a1, a2, ..., sequentially in
// each invocation.
$range i 2..n
$for i [[
$range j 2..i
$var types = [[$for j, [[typename Action$j]]]]
$var Aas = [[$for j [[, Action$j a$j]]]]
template <typename Action1, $types>
$range k 1..i-1
inline $for k [[internal::DoBothAction<Action$k, ]]Action$i$for k [[>]]
DoAll(Action1 a1$Aas) {
$if i==2 [[
return internal::DoBothAction<Action1, Action2>(a1, a2);
]] $else [[
$range j2 2..i
return DoAll(a1, DoAll($for j2, [[a$j2]]));
]]
}
]]
} // namespace testing
// The ACTION* family of macros can be used in a namespace scope to
// define custom actions easily. The syntax:
//
// ACTION(name) { statements; }
//
// will define an action with the given name that executes the
// statements. The value returned by the statements will be used as
// the return value of the action. Inside the statements, you can
// refer to the K-th (0-based) argument of the mock function by
// 'argK', and refer to its type by 'argK_type'. For example:
//
// ACTION(IncrementArg1) {
// arg1_type temp = arg1;
// return ++(*temp);
// }
//
// allows you to write
//
// ...WillOnce(IncrementArg1());
//
// You can also refer to the entire argument tuple and its type by
// 'args' and 'args_type', and refer to the mock function type and its
// return type by 'function_type' and 'return_type'.
//
// Note that you don't need to specify the types of the mock function
// arguments. However rest assured that your code is still type-safe:
// you'll get a compiler error if *arg1 doesn't support the ++
// operator, or if the type of ++(*arg1) isn't compatible with the
// mock function's return type, for example.
//
// Sometimes you'll want to parameterize the action. For that you can use
// another macro:
//
// ACTION_P(name, param_name) { statements; }
//
// For example:
//
// ACTION_P(Add, n) { return arg0 + n; }
//
// will allow you to write:
//
// ...WillOnce(Add(5));
//
// Note that you don't need to provide the type of the parameter
// either. If you need to reference the type of a parameter named
// 'foo', you can write 'foo_type'. For example, in the body of
// ACTION_P(Add, n) above, you can write 'n_type' to refer to the type
// of 'n'.
//
// We also provide ACTION_P2, ACTION_P3, ..., up to ACTION_P$n to support
// multi-parameter actions.
//
// For the purpose of typing, you can view
//
// ACTION_Pk(Foo, p1, ..., pk) { ... }
//
// as shorthand for
//
// template <typename p1_type, ..., typename pk_type>
// FooActionPk<p1_type, ..., pk_type> Foo(p1_type p1, ..., pk_type pk) { ... }
//
// In particular, you can provide the template type arguments
// explicitly when invoking Foo(), as in Foo<long, bool>(5, false);
// although usually you can rely on the compiler to infer the types
// for you automatically. You can assign the result of expression
// Foo(p1, ..., pk) to a variable of type FooActionPk<p1_type, ...,
// pk_type>. This can be useful when composing actions.
//
// You can also overload actions with different numbers of parameters:
//
// ACTION_P(Plus, a) { ... }
// ACTION_P2(Plus, a, b) { ... }
//
// While it's tempting to always use the ACTION* macros when defining
// a new action, you should also consider implementing ActionInterface
// or using MakePolymorphicAction() instead, especially if you need to
// use the action a lot. While these approaches require more work,
// they give you more control on the types of the mock function
// arguments and the action parameters, which in general leads to
// better compiler error messages that pay off in the long run. They
// also allow overloading actions based on parameter types (as opposed
// to just based on the number of parameters).
//
// CAVEAT:
//
// ACTION*() can only be used in a namespace scope. The reason is
// that C++ doesn't yet allow function-local types to be used to
// instantiate templates. The up-coming C++0x standard will fix this.
// Once that's done, we'll consider supporting using ACTION*() inside
// a function.
//
// MORE INFORMATION:
//
// To learn more about using these macros, please search for 'ACTION'
// on http://code.google.com/p/googlemock/wiki/CookBook.
$range i 0..n
$range k 0..n-1
// An internal macro needed for implementing ACTION*().
#define GMOCK_ACTION_ARG_TYPES_AND_NAMES_UNUSED_\
const args_type& args GTEST_ATTRIBUTE_UNUSED_
$for k [[, \
arg$k[[]]_type arg$k GTEST_ATTRIBUTE_UNUSED_]]
// Sometimes you want to give an action explicit template parameters
// that cannot be inferred from its value parameters. ACTION() and
// ACTION_P*() don't support that. ACTION_TEMPLATE() remedies that
// and can be viewed as an extension to ACTION() and ACTION_P*().
//
// The syntax:
//
// ACTION_TEMPLATE(ActionName,
// HAS_m_TEMPLATE_PARAMS(kind1, name1, ..., kind_m, name_m),
// AND_n_VALUE_PARAMS(p1, ..., p_n)) { statements; }
//
// defines an action template that takes m explicit template
// parameters and n value parameters. name_i is the name of the i-th
// template parameter, and kind_i specifies whether it's a typename,
// an integral constant, or a template. p_i is the name of the i-th
// value parameter.
//
// Example:
//
// // DuplicateArg<k, T>(output) converts the k-th argument of the mock
// // function to type T and copies it to *output.
// ACTION_TEMPLATE(DuplicateArg,
// HAS_2_TEMPLATE_PARAMS(int, k, typename, T),
// AND_1_VALUE_PARAMS(output)) {
// *output = T(::testing::get<k>(args));
// }
// ...
// int n;
// EXPECT_CALL(mock, Foo(_, _))
// .WillOnce(DuplicateArg<1, unsigned char>(&n));
//
// To create an instance of an action template, write:
//
// ActionName<t1, ..., t_m>(v1, ..., v_n)
//
// where the ts are the template arguments and the vs are the value
// arguments. The value argument types are inferred by the compiler.
// If you want to explicitly specify the value argument types, you can
// provide additional template arguments:
//
// ActionName<t1, ..., t_m, u1, ..., u_k>(v1, ..., v_n)
//
// where u_i is the desired type of v_i.
//
// ACTION_TEMPLATE and ACTION/ACTION_P* can be overloaded on the
// number of value parameters, but not on the number of template
// parameters. Without the restriction, the meaning of the following
// is unclear:
//
// OverloadedAction<int, bool>(x);
//
// Are we using a single-template-parameter action where 'bool' refers
// to the type of x, or are we using a two-template-parameter action
// where the compiler is asked to infer the type of x?
//
// Implementation notes:
//
// GMOCK_INTERNAL_*_HAS_m_TEMPLATE_PARAMS and
// GMOCK_INTERNAL_*_AND_n_VALUE_PARAMS are internal macros for
// implementing ACTION_TEMPLATE. The main trick we use is to create
// new macro invocations when expanding a macro. For example, we have
//
// #define ACTION_TEMPLATE(name, template_params, value_params)
// ... GMOCK_INTERNAL_DECL_##template_params ...
//
// which causes ACTION_TEMPLATE(..., HAS_1_TEMPLATE_PARAMS(typename, T), ...)
// to expand to
//
// ... GMOCK_INTERNAL_DECL_HAS_1_TEMPLATE_PARAMS(typename, T) ...
//
// Since GMOCK_INTERNAL_DECL_HAS_1_TEMPLATE_PARAMS is a macro, the
// preprocessor will continue to expand it to
//
// ... typename T ...
//
// This technique conforms to the C++ standard and is portable. It
// allows us to implement action templates using O(N) code, where N is
// the maximum number of template/value parameters supported. Without
// using it, we'd have to devote O(N^2) amount of code to implement all
// combinations of m and n.
// Declares the template parameters.
$range j 1..n
$for j [[
$range m 0..j-1
#define GMOCK_INTERNAL_DECL_HAS_$j[[]]
_TEMPLATE_PARAMS($for m, [[kind$m, name$m]]) $for m, [[kind$m name$m]]
]]
// Lists the template parameters.
$for j [[
$range m 0..j-1
#define GMOCK_INTERNAL_LIST_HAS_$j[[]]
_TEMPLATE_PARAMS($for m, [[kind$m, name$m]]) $for m, [[name$m]]
]]
// Declares the types of value parameters.
$for i [[
$range j 0..i-1
#define GMOCK_INTERNAL_DECL_TYPE_AND_$i[[]]
_VALUE_PARAMS($for j, [[p$j]]) $for j [[, typename p$j##_type]]
]]
// Initializes the value parameters.
$for i [[
$range j 0..i-1
#define GMOCK_INTERNAL_INIT_AND_$i[[]]_VALUE_PARAMS($for j, [[p$j]])\
($for j, [[p$j##_type gmock_p$j]])$if i>0 [[ : ]]$for j, [[p$j(gmock_p$j)]]
]]
// Declares the fields for storing the value parameters.
$for i [[
$range j 0..i-1
#define GMOCK_INTERNAL_DEFN_AND_$i[[]]
_VALUE_PARAMS($for j, [[p$j]]) $for j [[p$j##_type p$j; ]]
]]
// Lists the value parameters.
$for i [[
$range j 0..i-1
#define GMOCK_INTERNAL_LIST_AND_$i[[]]
_VALUE_PARAMS($for j, [[p$j]]) $for j, [[p$j]]
]]
// Lists the value parameter types.
$for i [[
$range j 0..i-1
#define GMOCK_INTERNAL_LIST_TYPE_AND_$i[[]]
_VALUE_PARAMS($for j, [[p$j]]) $for j [[, p$j##_type]]
]]
// Declares the value parameters.
$for i [[
$range j 0..i-1
#define GMOCK_INTERNAL_DECL_AND_$i[[]]_VALUE_PARAMS($for j, [[p$j]]) [[]]
$for j, [[p$j##_type p$j]]
]]
// The suffix of the class template implementing the action template.
$for i [[
$range j 0..i-1
#define GMOCK_INTERNAL_COUNT_AND_$i[[]]_VALUE_PARAMS($for j, [[p$j]]) [[]]
$if i==1 [[P]] $elif i>=2 [[P$i]]
]]
// The name of the class template implementing the action template.
#define GMOCK_ACTION_CLASS_(name, value_params)\
GTEST_CONCAT_TOKEN_(name##Action, GMOCK_INTERNAL_COUNT_##value_params)
$range k 0..n-1
#define ACTION_TEMPLATE(name, template_params, value_params)\
template <GMOCK_INTERNAL_DECL_##template_params\
GMOCK_INTERNAL_DECL_TYPE_##value_params>\
class GMOCK_ACTION_CLASS_(name, value_params) {\
public:\
explicit GMOCK_ACTION_CLASS_(name, value_params)\
GMOCK_INTERNAL_INIT_##value_params {}\
template <typename F>\
class gmock_Impl : public ::testing::ActionInterface<F> {\
public:\
typedef F function_type;\
typedef typename ::testing::internal::Function<F>::Result return_type;\
typedef typename ::testing::internal::Function<F>::ArgumentTuple\
args_type;\
explicit gmock_Impl GMOCK_INTERNAL_INIT_##value_params {}\
virtual return_type Perform(const args_type& args) {\
return ::testing::internal::ActionHelper<return_type, gmock_Impl>::\
Perform(this, args);\
}\
template <$for k, [[typename arg$k[[]]_type]]>\
return_type gmock_PerformImpl(const args_type& args[[]]
$for k [[, arg$k[[]]_type arg$k]]) const;\
GMOCK_INTERNAL_DEFN_##value_params\
private:\
GTEST_DISALLOW_ASSIGN_(gmock_Impl);\
};\
template <typename F> operator ::testing::Action<F>() const {\
return ::testing::Action<F>(\
new gmock_Impl<F>(GMOCK_INTERNAL_LIST_##value_params));\
}\
GMOCK_INTERNAL_DEFN_##value_params\
private:\
GTEST_DISALLOW_ASSIGN_(GMOCK_ACTION_CLASS_(name, value_params));\
};\
template <GMOCK_INTERNAL_DECL_##template_params\
GMOCK_INTERNAL_DECL_TYPE_##value_params>\
inline GMOCK_ACTION_CLASS_(name, value_params)<\
GMOCK_INTERNAL_LIST_##template_params\
GMOCK_INTERNAL_LIST_TYPE_##value_params> name(\
GMOCK_INTERNAL_DECL_##value_params) {\
return GMOCK_ACTION_CLASS_(name, value_params)<\
GMOCK_INTERNAL_LIST_##template_params\
GMOCK_INTERNAL_LIST_TYPE_##value_params>(\
GMOCK_INTERNAL_LIST_##value_params);\
}\
template <GMOCK_INTERNAL_DECL_##template_params\
GMOCK_INTERNAL_DECL_TYPE_##value_params>\
template <typename F>\
template <typename arg0_type, typename arg1_type, typename arg2_type, \
typename arg3_type, typename arg4_type, typename arg5_type, \
typename arg6_type, typename arg7_type, typename arg8_type, \
typename arg9_type>\
typename ::testing::internal::Function<F>::Result\
GMOCK_ACTION_CLASS_(name, value_params)<\
GMOCK_INTERNAL_LIST_##template_params\
GMOCK_INTERNAL_LIST_TYPE_##value_params>::gmock_Impl<F>::\
gmock_PerformImpl(\
GMOCK_ACTION_ARG_TYPES_AND_NAMES_UNUSED_) const
$for i
[[
$var template = [[$if i==0 [[]] $else [[
$range j 0..i-1
template <$for j, [[typename p$j##_type]]>\
]]]]
$var class_name = [[name##Action[[$if i==0 [[]] $elif i==1 [[P]]
$else [[P$i]]]]]]
$range j 0..i-1
$var ctor_param_list = [[$for j, [[p$j##_type gmock_p$j]]]]
$var param_types_and_names = [[$for j, [[p$j##_type p$j]]]]
$var inits = [[$if i==0 [[]] $else [[ : $for j, [[p$j(gmock_p$j)]]]]]]
$var param_field_decls = [[$for j
[[
p$j##_type p$j;\
]]]]
$var param_field_decls2 = [[$for j
[[
p$j##_type p$j;\
]]]]
$var params = [[$for j, [[p$j]]]]
$var param_types = [[$if i==0 [[]] $else [[<$for j, [[p$j##_type]]>]]]]
$var typename_arg_types = [[$for k, [[typename arg$k[[]]_type]]]]
$var arg_types_and_names = [[$for k, [[arg$k[[]]_type arg$k]]]]
$var macro_name = [[$if i==0 [[ACTION]] $elif i==1 [[ACTION_P]]
$else [[ACTION_P$i]]]]
#define $macro_name(name$for j [[, p$j]])\$template
class $class_name {\
public:\
[[$if i==1 [[explicit ]]]]$class_name($ctor_param_list)$inits {}\
template <typename F>\
class gmock_Impl : public ::testing::ActionInterface<F> {\
public:\
typedef F function_type;\
typedef typename ::testing::internal::Function<F>::Result return_type;\
typedef typename ::testing::internal::Function<F>::ArgumentTuple\
args_type;\
[[$if i==1 [[explicit ]]]]gmock_Impl($ctor_param_list)$inits {}\
virtual return_type Perform(const args_type& args) {\
return ::testing::internal::ActionHelper<return_type, gmock_Impl>::\
Perform(this, args);\
}\
template <$typename_arg_types>\
return_type gmock_PerformImpl(const args_type& args, [[]]
$arg_types_and_names) const;\$param_field_decls
private:\
GTEST_DISALLOW_ASSIGN_(gmock_Impl);\
};\
template <typename F> operator ::testing::Action<F>() const {\
return ::testing::Action<F>(new gmock_Impl<F>($params));\
}\$param_field_decls2
private:\
GTEST_DISALLOW_ASSIGN_($class_name);\
};\$template
inline $class_name$param_types name($param_types_and_names) {\
return $class_name$param_types($params);\
}\$template
template <typename F>\
template <$typename_arg_types>\
typename ::testing::internal::Function<F>::Result\
$class_name$param_types::gmock_Impl<F>::gmock_PerformImpl(\
GMOCK_ACTION_ARG_TYPES_AND_NAMES_UNUSED_) const
]]
$$ } // This meta comment fixes auto-indentation in Emacs. It won't
$$ // show up in the generated code.
namespace testing {
// The ACTION*() macros trigger warning C4100 (unreferenced formal
// parameter) in MSVC with -W4. Unfortunately they cannot be fixed in
// the macro definition, as the warnings are generated when the macro
// is expanded and macro expansion cannot contain #pragma. Therefore
// we suppress them here.
#ifdef _MSC_VER
# pragma warning(push)
# pragma warning(disable:4100)
#endif
// Various overloads for InvokeArgument<N>().
//
// The InvokeArgument<N>(a1, a2, ..., a_k) action invokes the N-th
// (0-based) argument, which must be a k-ary callable, of the mock
// function, with arguments a1, a2, ..., a_k.
//
// Notes:
//
// 1. The arguments are passed by value by default. If you need to
// pass an argument by reference, wrap it inside ByRef(). For
// example,
//
// InvokeArgument<1>(5, string("Hello"), ByRef(foo))
//
// passes 5 and string("Hello") by value, and passes foo by
// reference.
//
// 2. If the callable takes an argument by reference but ByRef() is
// not used, it will receive the reference to a copy of the value,
// instead of the original value. For example, when the 0-th
// argument of the mock function takes a const string&, the action
//
// InvokeArgument<0>(string("Hello"))
//
// makes a copy of the temporary string("Hello") object and passes a
// reference of the copy, instead of the original temporary object,
// to the callable. This makes it easy for a user to define an
// InvokeArgument action from temporary values and have it performed
// later.
namespace internal {
namespace invoke_argument {
// Appears in InvokeArgumentAdl's argument list to help avoid
// accidental calls to user functions of the same name.
struct AdlTag {};
// InvokeArgumentAdl - a helper for InvokeArgument.
// The basic overloads are provided here for generic functors.
// Overloads for other custom-callables are provided in the
// internal/custom/callback-actions.h header.
$range i 0..n
$for i
[[
$range j 1..i
template <typename R, typename F[[$for j [[, typename A$j]]]]>
R InvokeArgumentAdl(AdlTag, F f[[$for j [[, A$j a$j]]]]) {
return f([[$for j, [[a$j]]]]);
}
]]
} // namespace invoke_argument
} // namespace internal
$range i 0..n
$for i [[
$range j 0..i-1
ACTION_TEMPLATE(InvokeArgument,
HAS_1_TEMPLATE_PARAMS(int, k),
AND_$i[[]]_VALUE_PARAMS($for j, [[p$j]])) {
using internal::invoke_argument::InvokeArgumentAdl;
return InvokeArgumentAdl<return_type>(
internal::invoke_argument::AdlTag(),
::testing::get<k>(args)$for j [[, p$j]]);
}
]]
// Various overloads for ReturnNew<T>().
//
// The ReturnNew<T>(a1, a2, ..., a_k) action returns a pointer to a new
// instance of type T, constructed on the heap with constructor arguments
// a1, a2, ..., and a_k. The caller assumes ownership of the returned value.
$range i 0..n
$for i [[
$range j 0..i-1
$var ps = [[$for j, [[p$j]]]]
ACTION_TEMPLATE(ReturnNew,
HAS_1_TEMPLATE_PARAMS(typename, T),
AND_$i[[]]_VALUE_PARAMS($ps)) {
return new T($ps);
}
]]
#ifdef _MSC_VER
# pragma warning(pop)
#endif
} // namespace testing
// Include any custom callback actions added by the local installation.
// We must include this header at the end to make sure it can use the
// declarations from this file.
#include "gmock/internal/custom/gmock-generated-actions.h"
#endif // GMOCK_INCLUDE_GMOCK_GMOCK_GENERATED_ACTIONS_H_

View File

@ -1,291 +0,0 @@
$$ -*- mode: c++; -*-
$$ This is a Pump source file. Please use Pump to convert it to
$$ gmock-generated-function-mockers.h.
$$
$var n = 10 $$ The maximum arity we support.
// Copyright 2007, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Author: wan@google.com (Zhanyong Wan)
// Google Mock - a framework for writing C++ mock classes.
//
// This file implements function mockers of various arities.
#ifndef GMOCK_INCLUDE_GMOCK_GMOCK_GENERATED_FUNCTION_MOCKERS_H_
#define GMOCK_INCLUDE_GMOCK_GMOCK_GENERATED_FUNCTION_MOCKERS_H_
#include "gmock/gmock-spec-builders.h"
#include "gmock/internal/gmock-internal-utils.h"
#if GTEST_HAS_STD_FUNCTION_
# include <functional>
#endif
namespace testing {
namespace internal {
template <typename F>
class FunctionMockerBase;
// Note: class FunctionMocker really belongs to the ::testing
// namespace. However if we define it in ::testing, MSVC will
// complain when classes in ::testing::internal declare it as a
// friend class template. To workaround this compiler bug, we define
// FunctionMocker in ::testing::internal and import it into ::testing.
template <typename F>
class FunctionMocker;
$range i 0..n
$for i [[
$range j 1..i
$var typename_As = [[$for j [[, typename A$j]]]]
$var As = [[$for j, [[A$j]]]]
$var as = [[$for j, [[a$j]]]]
$var Aas = [[$for j, [[A$j a$j]]]]
$var ms = [[$for j, [[m$j]]]]
$var matchers = [[$for j, [[const Matcher<A$j>& m$j]]]]
template <typename R$typename_As>
class FunctionMocker<R($As)> : public
internal::FunctionMockerBase<R($As)> {
public:
typedef R F($As);
typedef typename internal::Function<F>::ArgumentTuple ArgumentTuple;
MockSpec<F>& With($matchers) {
$if i >= 1 [[
this->current_spec().SetMatchers(::testing::make_tuple($ms));
]]
return this->current_spec();
}
R Invoke($Aas) {
// Even though gcc and MSVC don't enforce it, 'this->' is required
// by the C++ standard [14.6.4] here, as the base class type is
// dependent on the template argument (and thus shouldn't be
// looked into when resolving InvokeWith).
return this->InvokeWith(ArgumentTuple($as));
}
};
]]
} // namespace internal
// The style guide prohibits "using" statements in a namespace scope
// inside a header file. However, the FunctionMocker class template
// is meant to be defined in the ::testing namespace. The following
// line is just a trick for working around a bug in MSVC 8.0, which
// cannot handle it if we define FunctionMocker in ::testing.
using internal::FunctionMocker;
// GMOCK_RESULT_(tn, F) expands to the result type of function type F.
// We define this as a variadic macro in case F contains unprotected
// commas (the same reason that we use variadic macros in other places
// in this file).
// INTERNAL IMPLEMENTATION - DON'T USE IN USER CODE!!!
#define GMOCK_RESULT_(tn, ...) \
tn ::testing::internal::Function<__VA_ARGS__>::Result
// The type of argument N of the given function type.
// INTERNAL IMPLEMENTATION - DON'T USE IN USER CODE!!!
#define GMOCK_ARG_(tn, N, ...) \
tn ::testing::internal::Function<__VA_ARGS__>::Argument##N
// The matcher type for argument N of the given function type.
// INTERNAL IMPLEMENTATION - DON'T USE IN USER CODE!!!
#define GMOCK_MATCHER_(tn, N, ...) \
const ::testing::Matcher<GMOCK_ARG_(tn, N, __VA_ARGS__)>&
// The variable for mocking the given method.
// INTERNAL IMPLEMENTATION - DON'T USE IN USER CODE!!!
#define GMOCK_MOCKER_(arity, constness, Method) \
GTEST_CONCAT_TOKEN_(gmock##constness##arity##_##Method##_, __LINE__)
$for i [[
$range j 1..i
$var arg_as = [[$for j, \
[[GMOCK_ARG_(tn, $j, __VA_ARGS__) gmock_a$j]]]]
$var as = [[$for j, [[gmock_a$j]]]]
$var matcher_as = [[$for j, \
[[GMOCK_MATCHER_(tn, $j, __VA_ARGS__) gmock_a$j]]]]
// INTERNAL IMPLEMENTATION - DON'T USE IN USER CODE!!!
#define GMOCK_METHOD$i[[]]_(tn, constness, ct, Method, ...) \
GMOCK_RESULT_(tn, __VA_ARGS__) ct Method( \
$arg_as) constness { \
GTEST_COMPILE_ASSERT_((::testing::tuple_size< \
tn ::testing::internal::Function<__VA_ARGS__>::ArgumentTuple>::value == $i), \
this_method_does_not_take_$i[[]]_argument[[$if i != 1 [[s]]]]); \
GMOCK_MOCKER_($i, constness, Method).SetOwnerAndName(this, #Method); \
return GMOCK_MOCKER_($i, constness, Method).Invoke($as); \
} \
::testing::MockSpec<__VA_ARGS__>& \
gmock_##Method($matcher_as) constness { \
GMOCK_MOCKER_($i, constness, Method).RegisterOwner(this); \
return GMOCK_MOCKER_($i, constness, Method).With($as); \
} \
mutable ::testing::FunctionMocker<__VA_ARGS__> GMOCK_MOCKER_($i, constness, Method)
]]
$for i [[
#define MOCK_METHOD$i(m, ...) GMOCK_METHOD$i[[]]_(, , , m, __VA_ARGS__)
]]
$for i [[
#define MOCK_CONST_METHOD$i(m, ...) GMOCK_METHOD$i[[]]_(, const, , m, __VA_ARGS__)
]]
$for i [[
#define MOCK_METHOD$i[[]]_T(m, ...) GMOCK_METHOD$i[[]]_(typename, , , m, __VA_ARGS__)
]]
$for i [[
#define MOCK_CONST_METHOD$i[[]]_T(m, ...) \
GMOCK_METHOD$i[[]]_(typename, const, , m, __VA_ARGS__)
]]
$for i [[
#define MOCK_METHOD$i[[]]_WITH_CALLTYPE(ct, m, ...) \
GMOCK_METHOD$i[[]]_(, , ct, m, __VA_ARGS__)
]]
$for i [[
#define MOCK_CONST_METHOD$i[[]]_WITH_CALLTYPE(ct, m, ...) \
GMOCK_METHOD$i[[]]_(, const, ct, m, __VA_ARGS__)
]]
$for i [[
#define MOCK_METHOD$i[[]]_T_WITH_CALLTYPE(ct, m, ...) \
GMOCK_METHOD$i[[]]_(typename, , ct, m, __VA_ARGS__)
]]
$for i [[
#define MOCK_CONST_METHOD$i[[]]_T_WITH_CALLTYPE(ct, m, ...) \
GMOCK_METHOD$i[[]]_(typename, const, ct, m, __VA_ARGS__)
]]
// A MockFunction<F> class has one mock method whose type is F. It is
// useful when you just want your test code to emit some messages and
// have Google Mock verify the right messages are sent (and perhaps at
// the right times). For example, if you are exercising code:
//
// Foo(1);
// Foo(2);
// Foo(3);
//
// and want to verify that Foo(1) and Foo(3) both invoke
// mock.Bar("a"), but Foo(2) doesn't invoke anything, you can write:
//
// TEST(FooTest, InvokesBarCorrectly) {
// MyMock mock;
// MockFunction<void(string check_point_name)> check;
// {
// InSequence s;
//
// EXPECT_CALL(mock, Bar("a"));
// EXPECT_CALL(check, Call("1"));
// EXPECT_CALL(check, Call("2"));
// EXPECT_CALL(mock, Bar("a"));
// }
// Foo(1);
// check.Call("1");
// Foo(2);
// check.Call("2");
// Foo(3);
// }
//
// The expectation spec says that the first Bar("a") must happen
// before check point "1", the second Bar("a") must happen after check
// point "2", and nothing should happen between the two check
// points. The explicit check points make it easy to tell which
// Bar("a") is called by which call to Foo().
//
// MockFunction<F> can also be used to exercise code that accepts
// std::function<F> callbacks. To do so, use AsStdFunction() method
// to create std::function proxy forwarding to original object's Call.
// Example:
//
// TEST(FooTest, RunsCallbackWithBarArgument) {
// MockFunction<int(string)> callback;
// EXPECT_CALL(callback, Call("bar")).WillOnce(Return(1));
// Foo(callback.AsStdFunction());
// }
template <typename F>
class MockFunction;
$for i [[
$range j 0..i-1
$var ArgTypes = [[$for j, [[A$j]]]]
$var ArgNames = [[$for j, [[a$j]]]]
$var ArgDecls = [[$for j, [[A$j a$j]]]]
template <typename R$for j [[, typename A$j]]>
class MockFunction<R($ArgTypes)> {
public:
MockFunction() {}
MOCK_METHOD$i[[]]_T(Call, R($ArgTypes));
#if GTEST_HAS_STD_FUNCTION_
std::function<R($ArgTypes)> AsStdFunction() {
return [this]($ArgDecls) -> R {
return this->Call($ArgNames);
};
}
#endif // GTEST_HAS_STD_FUNCTION_
private:
GTEST_DISALLOW_COPY_AND_ASSIGN_(MockFunction);
};
]]
} // namespace testing
#endif // GMOCK_INCLUDE_GMOCK_GMOCK_GENERATED_FUNCTION_MOCKERS_H_

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@ -1,672 +0,0 @@
$$ -*- mode: c++; -*-
$$ This is a Pump source file. Please use Pump to convert it to
$$ gmock-generated-actions.h.
$$
$var n = 10 $$ The maximum arity we support.
$$ }} This line fixes auto-indentation of the following code in Emacs.
// Copyright 2008, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// Google Mock - a framework for writing C++ mock classes.
//
// This file implements some commonly used variadic matchers.
#ifndef GMOCK_INCLUDE_GMOCK_GMOCK_GENERATED_MATCHERS_H_
#define GMOCK_INCLUDE_GMOCK_GMOCK_GENERATED_MATCHERS_H_
#include <iterator>
#include <sstream>
#include <string>
#include <vector>
#include "gmock/gmock-matchers.h"
namespace testing {
namespace internal {
$range i 0..n-1
// The type of the i-th (0-based) field of Tuple.
#define GMOCK_FIELD_TYPE_(Tuple, i) \
typename ::testing::tuple_element<i, Tuple>::type
// TupleFields<Tuple, k0, ..., kn> is for selecting fields from a
// tuple of type Tuple. It has two members:
//
// type: a tuple type whose i-th field is the ki-th field of Tuple.
// GetSelectedFields(t): returns fields k0, ..., and kn of t as a tuple.
//
// For example, in class TupleFields<tuple<bool, char, int>, 2, 0>, we have:
//
// type is tuple<int, bool>, and
// GetSelectedFields(make_tuple(true, 'a', 42)) is (42, true).
template <class Tuple$for i [[, int k$i = -1]]>
class TupleFields;
// This generic version is used when there are $n selectors.
template <class Tuple$for i [[, int k$i]]>
class TupleFields {
public:
typedef ::testing::tuple<$for i, [[GMOCK_FIELD_TYPE_(Tuple, k$i)]]> type;
static type GetSelectedFields(const Tuple& t) {
return type($for i, [[get<k$i>(t)]]);
}
};
// The following specialization is used for 0 ~ $(n-1) selectors.
$for i [[
$$ }}}
$range j 0..i-1
$range k 0..n-1
template <class Tuple$for j [[, int k$j]]>
class TupleFields<Tuple, $for k, [[$if k < i [[k$k]] $else [[-1]]]]> {
public:
typedef ::testing::tuple<$for j, [[GMOCK_FIELD_TYPE_(Tuple, k$j)]]> type;
static type GetSelectedFields(const Tuple& $if i==0 [[/* t */]] $else [[t]]) {
return type($for j, [[get<k$j>(t)]]);
}
};
]]
#undef GMOCK_FIELD_TYPE_
// Implements the Args() matcher.
$var ks = [[$for i, [[k$i]]]]
template <class ArgsTuple$for i [[, int k$i = -1]]>
class ArgsMatcherImpl : public MatcherInterface<ArgsTuple> {
public:
// ArgsTuple may have top-level const or reference modifiers.
typedef GTEST_REMOVE_REFERENCE_AND_CONST_(ArgsTuple) RawArgsTuple;
typedef typename internal::TupleFields<RawArgsTuple, $ks>::type SelectedArgs;
typedef Matcher<const SelectedArgs&> MonomorphicInnerMatcher;
template <typename InnerMatcher>
explicit ArgsMatcherImpl(const InnerMatcher& inner_matcher)
: inner_matcher_(SafeMatcherCast<const SelectedArgs&>(inner_matcher)) {}
virtual bool MatchAndExplain(ArgsTuple args,
MatchResultListener* listener) const {
const SelectedArgs& selected_args = GetSelectedArgs(args);
if (!listener->IsInterested())
return inner_matcher_.Matches(selected_args);
PrintIndices(listener->stream());
*listener << "are " << PrintToString(selected_args);
StringMatchResultListener inner_listener;
const bool match = inner_matcher_.MatchAndExplain(selected_args,
&inner_listener);
PrintIfNotEmpty(inner_listener.str(), listener->stream());
return match;
}
virtual void DescribeTo(::std::ostream* os) const {
*os << "are a tuple ";
PrintIndices(os);
inner_matcher_.DescribeTo(os);
}
virtual void DescribeNegationTo(::std::ostream* os) const {
*os << "are a tuple ";
PrintIndices(os);
inner_matcher_.DescribeNegationTo(os);
}
private:
static SelectedArgs GetSelectedArgs(ArgsTuple args) {
return TupleFields<RawArgsTuple, $ks>::GetSelectedFields(args);
}
// Prints the indices of the selected fields.
static void PrintIndices(::std::ostream* os) {
*os << "whose fields (";
const int indices[$n] = { $ks };
for (int i = 0; i < $n; i++) {
if (indices[i] < 0)
break;
if (i >= 1)
*os << ", ";
*os << "#" << indices[i];
}
*os << ") ";
}
const MonomorphicInnerMatcher inner_matcher_;
GTEST_DISALLOW_ASSIGN_(ArgsMatcherImpl);
};
template <class InnerMatcher$for i [[, int k$i = -1]]>
class ArgsMatcher {
public:
explicit ArgsMatcher(const InnerMatcher& inner_matcher)
: inner_matcher_(inner_matcher) {}
template <typename ArgsTuple>
operator Matcher<ArgsTuple>() const {
return MakeMatcher(new ArgsMatcherImpl<ArgsTuple, $ks>(inner_matcher_));
}
private:
const InnerMatcher inner_matcher_;
GTEST_DISALLOW_ASSIGN_(ArgsMatcher);
};
// A set of metafunctions for computing the result type of AllOf.
// AllOf(m1, ..., mN) returns
// AllOfResultN<decltype(m1), ..., decltype(mN)>::type.
// Although AllOf isn't defined for one argument, AllOfResult1 is defined
// to simplify the implementation.
template <typename M1>
struct AllOfResult1 {
typedef M1 type;
};
$range i 1..n
$range i 2..n
$for i [[
$range j 2..i
$var m = i/2
$range k 1..m
$range t m+1..i
template <typename M1$for j [[, typename M$j]]>
struct AllOfResult$i {
typedef BothOfMatcher<
typename AllOfResult$m<$for k, [[M$k]]>::type,
typename AllOfResult$(i-m)<$for t, [[M$t]]>::type
> type;
};
]]
// A set of metafunctions for computing the result type of AnyOf.
// AnyOf(m1, ..., mN) returns
// AnyOfResultN<decltype(m1), ..., decltype(mN)>::type.
// Although AnyOf isn't defined for one argument, AnyOfResult1 is defined
// to simplify the implementation.
template <typename M1>
struct AnyOfResult1 {
typedef M1 type;
};
$range i 1..n
$range i 2..n
$for i [[
$range j 2..i
$var m = i/2
$range k 1..m
$range t m+1..i
template <typename M1$for j [[, typename M$j]]>
struct AnyOfResult$i {
typedef EitherOfMatcher<
typename AnyOfResult$m<$for k, [[M$k]]>::type,
typename AnyOfResult$(i-m)<$for t, [[M$t]]>::type
> type;
};
]]
} // namespace internal
// Args<N1, N2, ..., Nk>(a_matcher) matches a tuple if the selected
// fields of it matches a_matcher. C++ doesn't support default
// arguments for function templates, so we have to overload it.
$range i 0..n
$for i [[
$range j 1..i
template <$for j [[int k$j, ]]typename InnerMatcher>
inline internal::ArgsMatcher<InnerMatcher$for j [[, k$j]]>
Args(const InnerMatcher& matcher) {
return internal::ArgsMatcher<InnerMatcher$for j [[, k$j]]>(matcher);
}
]]
// ElementsAre(e_1, e_2, ... e_n) matches an STL-style container with
// n elements, where the i-th element in the container must
// match the i-th argument in the list. Each argument of
// ElementsAre() can be either a value or a matcher. We support up to
// $n arguments.
//
// The use of DecayArray in the implementation allows ElementsAre()
// to accept string literals, whose type is const char[N], but we
// want to treat them as const char*.
//
// NOTE: Since ElementsAre() cares about the order of the elements, it
// must not be used with containers whose elements's order is
// undefined (e.g. hash_map).
$range i 0..n
$for i [[
$range j 1..i
$if i>0 [[
template <$for j, [[typename T$j]]>
]]
inline internal::ElementsAreMatcher<
::testing::tuple<
$for j, [[
typename internal::DecayArray<T$j[[]]>::type]]> >
ElementsAre($for j, [[const T$j& e$j]]) {
typedef ::testing::tuple<
$for j, [[
typename internal::DecayArray<T$j[[]]>::type]]> Args;
return internal::ElementsAreMatcher<Args>(Args($for j, [[e$j]]));
}
]]
// UnorderedElementsAre(e_1, e_2, ..., e_n) is an ElementsAre extension
// that matches n elements in any order. We support up to n=$n arguments.
$range i 0..n
$for i [[
$range j 1..i
$if i>0 [[
template <$for j, [[typename T$j]]>
]]
inline internal::UnorderedElementsAreMatcher<
::testing::tuple<
$for j, [[
typename internal::DecayArray<T$j[[]]>::type]]> >
UnorderedElementsAre($for j, [[const T$j& e$j]]) {
typedef ::testing::tuple<
$for j, [[
typename internal::DecayArray<T$j[[]]>::type]]> Args;
return internal::UnorderedElementsAreMatcher<Args>(Args($for j, [[e$j]]));
}
]]
// AllOf(m1, m2, ..., mk) matches any value that matches all of the given
// sub-matchers. AllOf is called fully qualified to prevent ADL from firing.
$range i 2..n
$for i [[
$range j 1..i
$var m = i/2
$range k 1..m
$range t m+1..i
template <$for j, [[typename M$j]]>
inline typename internal::AllOfResult$i<$for j, [[M$j]]>::type
AllOf($for j, [[M$j m$j]]) {
return typename internal::AllOfResult$i<$for j, [[M$j]]>::type(
$if m == 1 [[m1]] $else [[::testing::AllOf($for k, [[m$k]])]],
$if m+1 == i [[m$i]] $else [[::testing::AllOf($for t, [[m$t]])]]);
}
]]
// AnyOf(m1, m2, ..., mk) matches any value that matches any of the given
// sub-matchers. AnyOf is called fully qualified to prevent ADL from firing.
$range i 2..n
$for i [[
$range j 1..i
$var m = i/2
$range k 1..m
$range t m+1..i
template <$for j, [[typename M$j]]>
inline typename internal::AnyOfResult$i<$for j, [[M$j]]>::type
AnyOf($for j, [[M$j m$j]]) {
return typename internal::AnyOfResult$i<$for j, [[M$j]]>::type(
$if m == 1 [[m1]] $else [[::testing::AnyOf($for k, [[m$k]])]],
$if m+1 == i [[m$i]] $else [[::testing::AnyOf($for t, [[m$t]])]]);
}
]]
} // namespace testing
$$ } // This Pump meta comment fixes auto-indentation in Emacs. It will not
$$ // show up in the generated code.
// The MATCHER* family of macros can be used in a namespace scope to
// define custom matchers easily.
//
// Basic Usage
// ===========
//
// The syntax
//
// MATCHER(name, description_string) { statements; }
//
// defines a matcher with the given name that executes the statements,
// which must return a bool to indicate if the match succeeds. Inside
// the statements, you can refer to the value being matched by 'arg',
// and refer to its type by 'arg_type'.
//
// The description string documents what the matcher does, and is used
// to generate the failure message when the match fails. Since a
// MATCHER() is usually defined in a header file shared by multiple
// C++ source files, we require the description to be a C-string
// literal to avoid possible side effects. It can be empty, in which
// case we'll use the sequence of words in the matcher name as the
// description.
//
// For example:
//
// MATCHER(IsEven, "") { return (arg % 2) == 0; }
//
// allows you to write
//
// // Expects mock_foo.Bar(n) to be called where n is even.
// EXPECT_CALL(mock_foo, Bar(IsEven()));
//
// or,
//
// // Verifies that the value of some_expression is even.
// EXPECT_THAT(some_expression, IsEven());
//
// If the above assertion fails, it will print something like:
//
// Value of: some_expression
// Expected: is even
// Actual: 7
//
// where the description "is even" is automatically calculated from the
// matcher name IsEven.
//
// Argument Type
// =============
//
// Note that the type of the value being matched (arg_type) is
// determined by the context in which you use the matcher and is
// supplied to you by the compiler, so you don't need to worry about
// declaring it (nor can you). This allows the matcher to be
// polymorphic. For example, IsEven() can be used to match any type
// where the value of "(arg % 2) == 0" can be implicitly converted to
// a bool. In the "Bar(IsEven())" example above, if method Bar()
// takes an int, 'arg_type' will be int; if it takes an unsigned long,
// 'arg_type' will be unsigned long; and so on.
//
// Parameterizing Matchers
// =======================
//
// Sometimes you'll want to parameterize the matcher. For that you
// can use another macro:
//
// MATCHER_P(name, param_name, description_string) { statements; }
//
// For example:
//
// MATCHER_P(HasAbsoluteValue, value, "") { return abs(arg) == value; }
//
// will allow you to write:
//
// EXPECT_THAT(Blah("a"), HasAbsoluteValue(n));
//
// which may lead to this message (assuming n is 10):
//
// Value of: Blah("a")
// Expected: has absolute value 10
// Actual: -9
//
// Note that both the matcher description and its parameter are
// printed, making the message human-friendly.
//
// In the matcher definition body, you can write 'foo_type' to
// reference the type of a parameter named 'foo'. For example, in the
// body of MATCHER_P(HasAbsoluteValue, value) above, you can write
// 'value_type' to refer to the type of 'value'.
//
// We also provide MATCHER_P2, MATCHER_P3, ..., up to MATCHER_P$n to
// support multi-parameter matchers.
//
// Describing Parameterized Matchers
// =================================
//
// The last argument to MATCHER*() is a string-typed expression. The
// expression can reference all of the matcher's parameters and a
// special bool-typed variable named 'negation'. When 'negation' is
// false, the expression should evaluate to the matcher's description;
// otherwise it should evaluate to the description of the negation of
// the matcher. For example,
//
// using testing::PrintToString;
//
// MATCHER_P2(InClosedRange, low, hi,
// string(negation ? "is not" : "is") + " in range [" +
// PrintToString(low) + ", " + PrintToString(hi) + "]") {
// return low <= arg && arg <= hi;
// }
// ...
// EXPECT_THAT(3, InClosedRange(4, 6));
// EXPECT_THAT(3, Not(InClosedRange(2, 4)));
//
// would generate two failures that contain the text:
//
// Expected: is in range [4, 6]
// ...
// Expected: is not in range [2, 4]
//
// If you specify "" as the description, the failure message will
// contain the sequence of words in the matcher name followed by the
// parameter values printed as a tuple. For example,
//
// MATCHER_P2(InClosedRange, low, hi, "") { ... }
// ...
// EXPECT_THAT(3, InClosedRange(4, 6));
// EXPECT_THAT(3, Not(InClosedRange(2, 4)));
//
// would generate two failures that contain the text:
//
// Expected: in closed range (4, 6)
// ...
// Expected: not (in closed range (2, 4))
//
// Types of Matcher Parameters
// ===========================
//
// For the purpose of typing, you can view
//
// MATCHER_Pk(Foo, p1, ..., pk, description_string) { ... }
//
// as shorthand for
//
// template <typename p1_type, ..., typename pk_type>
// FooMatcherPk<p1_type, ..., pk_type>
// Foo(p1_type p1, ..., pk_type pk) { ... }
//
// When you write Foo(v1, ..., vk), the compiler infers the types of
// the parameters v1, ..., and vk for you. If you are not happy with
// the result of the type inference, you can specify the types by
// explicitly instantiating the template, as in Foo<long, bool>(5,
// false). As said earlier, you don't get to (or need to) specify
// 'arg_type' as that's determined by the context in which the matcher
// is used. You can assign the result of expression Foo(p1, ..., pk)
// to a variable of type FooMatcherPk<p1_type, ..., pk_type>. This
// can be useful when composing matchers.
//
// While you can instantiate a matcher template with reference types,
// passing the parameters by pointer usually makes your code more
// readable. If, however, you still want to pass a parameter by
// reference, be aware that in the failure message generated by the
// matcher you will see the value of the referenced object but not its
// address.
//
// Explaining Match Results
// ========================
//
// Sometimes the matcher description alone isn't enough to explain why
// the match has failed or succeeded. For example, when expecting a
// long string, it can be very helpful to also print the diff between
// the expected string and the actual one. To achieve that, you can
// optionally stream additional information to a special variable
// named result_listener, whose type is a pointer to class
// MatchResultListener:
//
// MATCHER_P(EqualsLongString, str, "") {
// if (arg == str) return true;
//
// *result_listener << "the difference: "
/// << DiffStrings(str, arg);
// return false;
// }
//
// Overloading Matchers
// ====================
//
// You can overload matchers with different numbers of parameters:
//
// MATCHER_P(Blah, a, description_string1) { ... }
// MATCHER_P2(Blah, a, b, description_string2) { ... }
//
// Caveats
// =======
//
// When defining a new matcher, you should also consider implementing
// MatcherInterface or using MakePolymorphicMatcher(). These
// approaches require more work than the MATCHER* macros, but also
// give you more control on the types of the value being matched and
// the matcher parameters, which may leads to better compiler error
// messages when the matcher is used wrong. They also allow
// overloading matchers based on parameter types (as opposed to just
// based on the number of parameters).
//
// MATCHER*() can only be used in a namespace scope. The reason is
// that C++ doesn't yet allow function-local types to be used to
// instantiate templates. The up-coming C++0x standard will fix this.
// Once that's done, we'll consider supporting using MATCHER*() inside
// a function.
//
// More Information
// ================
//
// To learn more about using these macros, please search for 'MATCHER'
// on http://code.google.com/p/googlemock/wiki/CookBook.
$range i 0..n
$for i
[[
$var macro_name = [[$if i==0 [[MATCHER]] $elif i==1 [[MATCHER_P]]
$else [[MATCHER_P$i]]]]
$var class_name = [[name##Matcher[[$if i==0 [[]] $elif i==1 [[P]]
$else [[P$i]]]]]]
$range j 0..i-1
$var template = [[$if i==0 [[]] $else [[
template <$for j, [[typename p$j##_type]]>\
]]]]
$var ctor_param_list = [[$for j, [[p$j##_type gmock_p$j]]]]
$var impl_ctor_param_list = [[$for j, [[p$j##_type gmock_p$j]]]]
$var impl_inits = [[$if i==0 [[]] $else [[ : $for j, [[p$j(gmock_p$j)]]]]]]
$var inits = [[$if i==0 [[]] $else [[ : $for j, [[p$j(gmock_p$j)]]]]]]
$var params = [[$for j, [[p$j]]]]
$var param_types = [[$if i==0 [[]] $else [[<$for j, [[p$j##_type]]>]]]]
$var param_types_and_names = [[$for j, [[p$j##_type p$j]]]]
$var param_field_decls = [[$for j
[[
p$j##_type p$j;\
]]]]
$var param_field_decls2 = [[$for j
[[
p$j##_type p$j;\
]]]]
#define $macro_name(name$for j [[, p$j]], description)\$template
class $class_name {\
public:\
template <typename arg_type>\
class gmock_Impl : public ::testing::MatcherInterface<arg_type> {\
public:\
[[$if i==1 [[explicit ]]]]gmock_Impl($impl_ctor_param_list)\
$impl_inits {}\
virtual bool MatchAndExplain(\
arg_type arg, ::testing::MatchResultListener* result_listener) const;\
virtual void DescribeTo(::std::ostream* gmock_os) const {\
*gmock_os << FormatDescription(false);\
}\
virtual void DescribeNegationTo(::std::ostream* gmock_os) const {\
*gmock_os << FormatDescription(true);\
}\$param_field_decls
private:\
::testing::internal::string FormatDescription(bool negation) const {\
const ::testing::internal::string gmock_description = (description);\
if (!gmock_description.empty())\
return gmock_description;\
return ::testing::internal::FormatMatcherDescription(\
negation, #name, \
::testing::internal::UniversalTersePrintTupleFieldsToStrings(\
::testing::tuple<$for j, [[p$j##_type]]>($for j, [[p$j]])));\
}\
GTEST_DISALLOW_ASSIGN_(gmock_Impl);\
};\
template <typename arg_type>\
operator ::testing::Matcher<arg_type>() const {\
return ::testing::Matcher<arg_type>(\
new gmock_Impl<arg_type>($params));\
}\
[[$if i==1 [[explicit ]]]]$class_name($ctor_param_list)$inits {\
}\$param_field_decls2
private:\
GTEST_DISALLOW_ASSIGN_($class_name);\
};\$template
inline $class_name$param_types name($param_types_and_names) {\
return $class_name$param_types($params);\
}\$template
template <typename arg_type>\
bool $class_name$param_types::gmock_Impl<arg_type>::MatchAndExplain(\
arg_type arg, \
::testing::MatchResultListener* result_listener GTEST_ATTRIBUTE_UNUSED_)\
const
]]
#endif // GMOCK_INCLUDE_GMOCK_GMOCK_GENERATED_MATCHERS_H_

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