231 lines
9.4 KiB
C++
231 lines
9.4 KiB
C++
/*
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* Copyright 2012 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include <memory>
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#include <string>
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#include "webrtc/api/jsepicecandidate.h"
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#include "webrtc/api/jsepsessiondescription.h"
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#include "webrtc/base/gunit.h"
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#include "webrtc/base/helpers.h"
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#include "webrtc/base/ssladapter.h"
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#include "webrtc/base/stringencode.h"
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#include "webrtc/p2p/base/candidate.h"
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#include "webrtc/p2p/base/p2pconstants.h"
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#include "webrtc/p2p/base/sessiondescription.h"
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#include "webrtc/pc/mediasession.h"
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using webrtc::IceCandidateCollection;
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using webrtc::IceCandidateInterface;
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using webrtc::JsepIceCandidate;
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using webrtc::JsepSessionDescription;
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using webrtc::SessionDescriptionInterface;
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static const char kCandidateUfrag[] = "ufrag";
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static const char kCandidatePwd[] = "pwd";
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static const char kCandidateUfragVoice[] = "ufrag_voice";
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static const char kCandidatePwdVoice[] = "pwd_voice";
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static const char kCandidateUfragVideo[] = "ufrag_video";
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static const char kCandidatePwdVideo[] = "pwd_video";
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// This creates a session description with both audio and video media contents.
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// In SDP this is described by two m lines, one audio and one video.
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static cricket::SessionDescription* CreateCricketSessionDescription() {
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cricket::SessionDescription* desc(new cricket::SessionDescription());
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// AudioContentDescription
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std::unique_ptr<cricket::AudioContentDescription> audio(
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new cricket::AudioContentDescription());
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// VideoContentDescription
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std::unique_ptr<cricket::VideoContentDescription> video(
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new cricket::VideoContentDescription());
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audio->AddCodec(cricket::AudioCodec(103, "ISAC", 16000, 0, 0));
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desc->AddContent(cricket::CN_AUDIO, cricket::NS_JINGLE_RTP,
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audio.release());
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video->AddCodec(cricket::VideoCodec(120, "VP8", 640, 480, 30));
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desc->AddContent(cricket::CN_VIDEO, cricket::NS_JINGLE_RTP,
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video.release());
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EXPECT_TRUE(desc->AddTransportInfo(cricket::TransportInfo(
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cricket::CN_AUDIO,
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cricket::TransportDescription(
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std::vector<std::string>(), kCandidateUfragVoice, kCandidatePwdVoice,
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cricket::ICEMODE_FULL, cricket::CONNECTIONROLE_NONE, NULL))));
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EXPECT_TRUE(desc->AddTransportInfo(cricket::TransportInfo(
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cricket::CN_VIDEO,
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cricket::TransportDescription(
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std::vector<std::string>(), kCandidateUfragVideo, kCandidatePwdVideo,
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cricket::ICEMODE_FULL, cricket::CONNECTIONROLE_NONE, NULL))));
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return desc;
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}
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class JsepSessionDescriptionTest : public testing::Test {
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protected:
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virtual void SetUp() {
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int port = 1234;
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rtc::SocketAddress address("127.0.0.1", port++);
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cricket::Candidate candidate(cricket::ICE_CANDIDATE_COMPONENT_RTP, "udp",
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address, 1, "", "", "local", 0, "1");
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candidate_ = candidate;
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const std::string session_id =
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rtc::ToString(rtc::CreateRandomId64());
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const std::string session_version =
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rtc::ToString(rtc::CreateRandomId());
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jsep_desc_.reset(new JsepSessionDescription("dummy"));
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ASSERT_TRUE(jsep_desc_->Initialize(CreateCricketSessionDescription(),
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session_id, session_version));
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}
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std::string Serialize(const SessionDescriptionInterface* desc) {
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std::string sdp;
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EXPECT_TRUE(desc->ToString(&sdp));
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EXPECT_FALSE(sdp.empty());
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return sdp;
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}
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SessionDescriptionInterface* DeSerialize(const std::string& sdp) {
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JsepSessionDescription* desc(new JsepSessionDescription("dummy"));
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EXPECT_TRUE(desc->Initialize(sdp, NULL));
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return desc;
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}
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cricket::Candidate candidate_;
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std::unique_ptr<JsepSessionDescription> jsep_desc_;
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};
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// Test that number_of_mediasections() returns the number of media contents in
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// a session description.
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TEST_F(JsepSessionDescriptionTest, CheckSessionDescription) {
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EXPECT_EQ(2u, jsep_desc_->number_of_mediasections());
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}
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// Test that we can add a candidate to a session description without MID.
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TEST_F(JsepSessionDescriptionTest, AddCandidateWithoutMid) {
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JsepIceCandidate jsep_candidate("", 0, candidate_);
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EXPECT_TRUE(jsep_desc_->AddCandidate(&jsep_candidate));
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const IceCandidateCollection* ice_candidates = jsep_desc_->candidates(0);
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ASSERT_TRUE(ice_candidates != NULL);
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EXPECT_EQ(1u, ice_candidates->count());
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const IceCandidateInterface* ice_candidate = ice_candidates->at(0);
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ASSERT_TRUE(ice_candidate != NULL);
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candidate_.set_username(kCandidateUfragVoice);
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candidate_.set_password(kCandidatePwdVoice);
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EXPECT_TRUE(ice_candidate->candidate().IsEquivalent(candidate_));
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EXPECT_EQ(0, ice_candidate->sdp_mline_index());
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EXPECT_EQ(0u, jsep_desc_->candidates(1)->count());
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}
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// Test that we can add and remove candidates to a session description with
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// MID. Removing candidates requires MID (transport_name).
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TEST_F(JsepSessionDescriptionTest, AddAndRemoveCandidatesWithMid) {
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// mid and m-line index don't match, in this case mid is preferred.
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std::string mid = "video";
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JsepIceCandidate jsep_candidate(mid, 0, candidate_);
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EXPECT_TRUE(jsep_desc_->AddCandidate(&jsep_candidate));
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EXPECT_EQ(0u, jsep_desc_->candidates(0)->count());
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const IceCandidateCollection* ice_candidates = jsep_desc_->candidates(1);
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ASSERT_TRUE(ice_candidates != NULL);
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EXPECT_EQ(1u, ice_candidates->count());
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const IceCandidateInterface* ice_candidate = ice_candidates->at(0);
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ASSERT_TRUE(ice_candidate != NULL);
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candidate_.set_username(kCandidateUfragVideo);
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candidate_.set_password(kCandidatePwdVideo);
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EXPECT_TRUE(ice_candidate->candidate().IsEquivalent(candidate_));
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// The mline index should have been updated according to mid.
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EXPECT_EQ(1, ice_candidate->sdp_mline_index());
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std::vector<cricket::Candidate> candidates(1, candidate_);
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candidates[0].set_transport_name(mid);
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EXPECT_EQ(1u, jsep_desc_->RemoveCandidates(candidates));
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EXPECT_EQ(0u, jsep_desc_->candidates(0)->count());
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EXPECT_EQ(0u, jsep_desc_->candidates(1)->count());
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}
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TEST_F(JsepSessionDescriptionTest, AddCandidateAlreadyHasUfrag) {
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candidate_.set_username(kCandidateUfrag);
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candidate_.set_password(kCandidatePwd);
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JsepIceCandidate jsep_candidate("audio", 0, candidate_);
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EXPECT_TRUE(jsep_desc_->AddCandidate(&jsep_candidate));
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const IceCandidateCollection* ice_candidates = jsep_desc_->candidates(0);
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ASSERT_TRUE(ice_candidates != NULL);
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EXPECT_EQ(1u, ice_candidates->count());
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const IceCandidateInterface* ice_candidate = ice_candidates->at(0);
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ASSERT_TRUE(ice_candidate != NULL);
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candidate_.set_username(kCandidateUfrag);
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candidate_.set_password(kCandidatePwd);
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EXPECT_TRUE(ice_candidate->candidate().IsEquivalent(candidate_));
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EXPECT_EQ(0u, jsep_desc_->candidates(1)->count());
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}
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// Test that we can not add a candidate if there is no corresponding media
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// content in the session description.
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TEST_F(JsepSessionDescriptionTest, AddBadCandidate) {
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JsepIceCandidate bad_candidate1("", 55, candidate_);
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EXPECT_FALSE(jsep_desc_->AddCandidate(&bad_candidate1));
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JsepIceCandidate bad_candidate2("some weird mid", 0, candidate_);
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EXPECT_FALSE(jsep_desc_->AddCandidate(&bad_candidate2));
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}
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// Tests that repeatedly adding the same candidate, with or without credentials,
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// does not increase the number of candidates in the description.
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TEST_F(JsepSessionDescriptionTest, AddCandidateDuplicates) {
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JsepIceCandidate jsep_candidate("", 0, candidate_);
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EXPECT_TRUE(jsep_desc_->AddCandidate(&jsep_candidate));
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EXPECT_EQ(1u, jsep_desc_->candidates(0)->count());
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// Add the same candidate again. It should be ignored.
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EXPECT_TRUE(jsep_desc_->AddCandidate(&jsep_candidate));
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EXPECT_EQ(1u, jsep_desc_->candidates(0)->count());
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// Create a new candidate, identical except that the ufrag and pwd are now
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// populated.
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candidate_.set_username(kCandidateUfragVoice);
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candidate_.set_password(kCandidatePwdVoice);
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JsepIceCandidate jsep_candidate_with_credentials("", 0, candidate_);
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// This should also be identified as redundant and ignored.
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EXPECT_TRUE(jsep_desc_->AddCandidate(&jsep_candidate_with_credentials));
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EXPECT_EQ(1u, jsep_desc_->candidates(0)->count());
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}
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// Test that we can serialize a JsepSessionDescription and deserialize it again.
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TEST_F(JsepSessionDescriptionTest, SerializeDeserialize) {
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std::string sdp = Serialize(jsep_desc_.get());
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std::unique_ptr<SessionDescriptionInterface> parsed_jsep_desc(
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DeSerialize(sdp));
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EXPECT_EQ(2u, parsed_jsep_desc->number_of_mediasections());
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std::string parsed_sdp = Serialize(parsed_jsep_desc.get());
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EXPECT_EQ(sdp, parsed_sdp);
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}
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// Tests that we can serialize and deserialize a JsepSesssionDescription
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// with candidates.
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TEST_F(JsepSessionDescriptionTest, SerializeDeserializeWithCandidates) {
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std::string sdp = Serialize(jsep_desc_.get());
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// Add a candidate and check that the serialized result is different.
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JsepIceCandidate jsep_candidate("audio", 0, candidate_);
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EXPECT_TRUE(jsep_desc_->AddCandidate(&jsep_candidate));
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std::string sdp_with_candidate = Serialize(jsep_desc_.get());
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EXPECT_NE(sdp, sdp_with_candidate);
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std::unique_ptr<SessionDescriptionInterface> parsed_jsep_desc(
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DeSerialize(sdp_with_candidate));
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std::string parsed_sdp_with_candidate = Serialize(parsed_jsep_desc.get());
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EXPECT_EQ(sdp_with_candidate, parsed_sdp_with_candidate);
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}
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