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