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Unified Diff: webrtc/pc/peerconnectioninterface_unittest.cc

Issue 2991693002: Adding support for Unified Plan offer/answer negotiation. (Closed)
Patch Set: More tests. Created 3 years, 4 months ago
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« webrtc/pc/peerconnection.h ('K') | « webrtc/pc/peerconnection.cc ('k') | webrtc/pc/webrtcsession_unittest.cc » ('j') | webrtc/pc/webrtcsession_unittest.cc » ('J')
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Index: webrtc/pc/peerconnectioninterface_unittest.cc
diff --git a/webrtc/pc/peerconnectioninterface_unittest.cc b/webrtc/pc/peerconnectioninterface_unittest.cc
index 114ffd75e215206d7df47aaf0fb14bd45565689c..b71cbc37b3a28f16b13c16605dc5a17a427a7606 100644
--- a/webrtc/pc/peerconnectioninterface_unittest.cc
+++ b/webrtc/pc/peerconnectioninterface_unittest.cc
@@ -1182,6 +1182,57 @@ class PeerConnectionInterfaceTest : public testing::Test {
return audio_desc->streams()[0].cname;
}
+ std::unique_ptr<SessionDescriptionInterface> CreateOfferWithOptions(
+ const RTCOfferAnswerOptions& offer_answer_options) {
+ RTC_DCHECK(pc_);
+ rtc::scoped_refptr<MockCreateSessionDescriptionObserver> observer(
+ new rtc::RefCountedObject<MockCreateSessionDescriptionObserver>());
+ pc_->CreateOffer(observer, offer_answer_options);
+ EXPECT_EQ_WAIT(true, observer->called(), kTimeout);
+ return observer->MoveDescription();
+ }
+
+ void CreateOfferWithOptionsAsRemoteDescription(
+ std::unique_ptr<SessionDescriptionInterface>* desc,
+ const RTCOfferAnswerOptions& offer_answer_options) {
+ *desc = CreateOfferWithOptions(offer_answer_options);
+ ASSERT_TRUE(desc != nullptr);
+ std::string sdp;
+ EXPECT_TRUE((*desc)->ToString(&sdp));
+ SessionDescriptionInterface* remote_offer =
+ webrtc::CreateSessionDescription(SessionDescriptionInterface::kOffer,
+ sdp, NULL);
+ EXPECT_TRUE(DoSetRemoteDescription(remote_offer));
+ EXPECT_EQ(PeerConnectionInterface::kHaveRemoteOffer, observer_.state_);
+ }
+
+ void CreateOfferWithOptionsAsLocalDescription(
+ std::unique_ptr<SessionDescriptionInterface>* desc,
+ const RTCOfferAnswerOptions& offer_answer_options) {
+ *desc = CreateOfferWithOptions(offer_answer_options);
+ ASSERT_TRUE(desc != nullptr);
+ std::string sdp;
+ EXPECT_TRUE((*desc)->ToString(&sdp));
+ SessionDescriptionInterface* new_offer = webrtc::CreateSessionDescription(
+ SessionDescriptionInterface::kOffer, sdp, NULL);
+
+ EXPECT_TRUE(DoSetLocalDescription(new_offer));
+ EXPECT_EQ(PeerConnectionInterface::kHaveLocalOffer, observer_.state_);
+ }
+
+ bool HasCNCodecs(const cricket::ContentInfo* content) {
+ const cricket::ContentDescription* description = content->description;
+ RTC_DCHECK(description);
+ const cricket::AudioContentDescription* audio_content_desc =
+ static_cast<const cricket::AudioContentDescription*>(description);
+ RTC_DCHECK(audio_content_desc);
+ for (size_t i = 0; i < audio_content_desc->codecs().size(); ++i) {
+ if (audio_content_desc->codecs()[i].name == "CN")
+ return true;
+ }
+ return false;
+ }
+
std::unique_ptr<rtc::VirtualSocketServer> vss_;
rtc::AutoSocketServerThread main_;
cricket::FakePortAllocator* port_allocator_ = nullptr;
@@ -3492,6 +3543,223 @@ TEST_F(PeerConnectionInterfaceTest, SetBitrateCurrentLessThanImplicitMin) {
EXPECT_TRUE(pc_->SetBitrate(bitrate).ok());
}
+// The following tests verify that the offer can be created correctly.
+TEST_F(PeerConnectionInterfaceTest,
+ CreateOfferFailsWithInvalidOfferToReceiveAudio) {
+ RTCOfferAnswerOptions rtc_options;
+
+ // Setting offer_to_receive_audio to a value lower than kUndefined or greater
+ // than kMaxOfferToReceiveMedia should be treated as invalid.
+ rtc_options.offer_to_receive_audio = RTCOfferAnswerOptions::kUndefined - 1;
+ CreatePeerConnection();
+ EXPECT_FALSE(CreateOfferWithOptions(rtc_options));
+
+ rtc_options.offer_to_receive_audio =
+ RTCOfferAnswerOptions::kMaxOfferToReceiveMedia + 1;
+ EXPECT_FALSE(CreateOfferWithOptions(rtc_options));
+}
+
+TEST_F(PeerConnectionInterfaceTest,
+ CreateOfferFailsWithInvalidOfferToReceiveVideo) {
+ RTCOfferAnswerOptions rtc_options;
+
+ // Setting offer_to_receive_video to a value lower than kUndefined or greater
+ // than kMaxOfferToReceiveMedia should be treated as invalid.
+ rtc_options.offer_to_receive_video = RTCOfferAnswerOptions::kUndefined - 1;
+ CreatePeerConnection();
+ EXPECT_FALSE(CreateOfferWithOptions(rtc_options));
+
+ rtc_options.offer_to_receive_video =
+ RTCOfferAnswerOptions::kMaxOfferToReceiveMedia + 1;
+ EXPECT_FALSE(CreateOfferWithOptions(rtc_options));
+}
+
+// Test that the audio and video content will be added to an offer if both
+// |offer_to_receive_audio| and |offer_to_receive_video| options are 1.
+TEST_F(PeerConnectionInterfaceTest, CreateOfferWithAudioVideoOptions) {
+ RTCOfferAnswerOptions rtc_options;
+ rtc_options.offer_to_receive_audio = 1;
+ rtc_options.offer_to_receive_video = 1;
+
+ std::unique_ptr<SessionDescriptionInterface> offer;
+ CreatePeerConnection();
+ offer = CreateOfferWithOptions(rtc_options);
+ ASSERT_TRUE(offer);
+ EXPECT_NE(nullptr, GetFirstAudioContent(offer->description()));
+ EXPECT_NE(nullptr, GetFirstVideoContent(offer->description()));
+}
+
+// Test that only audio content will be added to the offer if only
+// |offer_to_receive_audio| options is 1.
+TEST_F(PeerConnectionInterfaceTest, CreateOfferWithAudioOnlyOptions) {
+ RTCOfferAnswerOptions rtc_options;
+ rtc_options.offer_to_receive_audio = 1;
+ rtc_options.offer_to_receive_video = 0;
+
+ std::unique_ptr<SessionDescriptionInterface> offer;
+ CreatePeerConnection();
+ offer = CreateOfferWithOptions(rtc_options);
+ ASSERT_TRUE(offer);
+ EXPECT_NE(nullptr, GetFirstAudioContent(offer->description()));
+ EXPECT_EQ(nullptr, GetFirstVideoContent(offer->description()));
+}
+
+// Test that if |voice_activity_detection| is false, no CN codec is added to the
+// offer.
+TEST_F(PeerConnectionInterfaceTest, CreateOfferWithVADOptions) {
+ RTCOfferAnswerOptions rtc_options;
+ rtc_options.offer_to_receive_audio = 1;
+ rtc_options.offer_to_receive_video = 0;
+
+ std::unique_ptr<SessionDescriptionInterface> offer;
+ CreatePeerConnection();
+ offer = CreateOfferWithOptions(rtc_options);
+ ASSERT_TRUE(offer);
+ const cricket::ContentInfo* audio_content =
+ offer->description()->GetContentByName(cricket::CN_AUDIO);
+ ASSERT_TRUE(audio_content);
+ // |voice_activity_detection| is true by default.
+ EXPECT_TRUE(HasCNCodecs(audio_content));
+
+ rtc_options.voice_activity_detection = false;
+ CreatePeerConnection();
+ offer = CreateOfferWithOptions(rtc_options);
+ ASSERT_TRUE(offer);
+ audio_content = offer->description()->GetContentByName(cricket::CN_AUDIO);
+ ASSERT_TRUE(audio_content);
+ EXPECT_FALSE(HasCNCodecs(audio_content));
+}
+
+// Test that no media content will be added to the offer if using default
+// RTCOfferAnswerOptions.
+TEST_F(PeerConnectionInterfaceTest, CreateOfferWithDefaultOfferAnswerOptions) {
+ RTCOfferAnswerOptions rtc_options;
+
+ std::unique_ptr<SessionDescriptionInterface> offer;
+ CreatePeerConnection();
+ offer = CreateOfferWithOptions(rtc_options);
+ ASSERT_TRUE(offer);
+ EXPECT_EQ(nullptr, GetFirstAudioContent(offer->description()));
+ EXPECT_EQ(nullptr, GetFirstVideoContent(offer->description()));
+}
+
+// Test that only video content will be added if only |offer_to_receive_video|
+// options is 1.
+TEST_F(PeerConnectionInterfaceTest, CreateOfferWithVideoOnlyOptions) {
Taylor Brandstetter 2017/08/05 00:39:09 nit: Would make sense to move this next to CreateO
Zhi Huang 2017/08/09 00:54:51 Done.
+ RTCOfferAnswerOptions rtc_options;
+ rtc_options.offer_to_receive_audio = 0;
+ rtc_options.offer_to_receive_video = 1;
+
+ std::unique_ptr<SessionDescriptionInterface> offer;
+ CreatePeerConnection();
+ offer = CreateOfferWithOptions(rtc_options);
+ ASSERT_TRUE(offer);
+ EXPECT_EQ(nullptr, GetFirstAudioContent(offer->description()));
+ EXPECT_NE(nullptr, GetFirstVideoContent(offer->description()));
+}
+
+// Test that if |ice_restart| is true, the ufrag/pwd will change, otherwise
+// ufrag/pwd will be the same in the new offer.
+TEST_F(PeerConnectionInterfaceTest, CreateOfferWithIceRestart) {
+ RTCOfferAnswerOptions rtc_options;
+ rtc_options.ice_restart = false;
+ rtc_options.offer_to_receive_audio = 1;
+
+ std::unique_ptr<SessionDescriptionInterface> offer;
+ CreatePeerConnection();
+ CreateOfferWithOptionsAsLocalDescription(&offer, rtc_options);
+ auto ufrag1 = offer->description()
+ ->GetTransportInfoByName(cricket::CN_AUDIO)
+ ->description.ice_ufrag;
+ auto pwd1 = offer->description()
+ ->GetTransportInfoByName(cricket::CN_AUDIO)
+ ->description.ice_pwd;
+
+ // |ice_restart| is false, the ufrag/pwd shouldn't change.
+ CreateOfferWithOptionsAsLocalDescription(&offer, rtc_options);
+ auto ufrag2 = offer->description()
+ ->GetTransportInfoByName(cricket::CN_AUDIO)
+ ->description.ice_ufrag;
+ auto pwd2 = offer->description()
+ ->GetTransportInfoByName(cricket::CN_AUDIO)
+ ->description.ice_pwd;
+
+ // |ice_restart| is true, the ufrag/pwd should change.
+ rtc_options.ice_restart = true;
+ CreateOfferWithOptionsAsLocalDescription(&offer, rtc_options);
+ auto ufrag3 = offer->description()
+ ->GetTransportInfoByName(cricket::CN_AUDIO)
+ ->description.ice_ufrag;
+ auto pwd3 = offer->description()
+ ->GetTransportInfoByName(cricket::CN_AUDIO)
+ ->description.ice_pwd;
+
+ EXPECT_EQ(ufrag1, ufrag2);
+ EXPECT_EQ(pwd1, pwd2);
+ EXPECT_NE(ufrag2, ufrag3);
+ EXPECT_NE(pwd2, pwd3);
+}
+
+// Test that if |use_rtp_mux| is true, the bundling will be enabled in the
+// offer; if it is false, there won't be any bundle group in the offer.
+TEST_F(PeerConnectionInterfaceTest, CreateOfferWithRtpMux) {
+ RTCOfferAnswerOptions rtc_options;
+ rtc_options.offer_to_receive_audio = 1;
+ rtc_options.offer_to_receive_video = 1;
+
+ std::unique_ptr<SessionDescriptionInterface> offer;
+ CreatePeerConnection();
+
+ rtc_options.use_rtp_mux = true;
+ offer = CreateOfferWithOptions(rtc_options);
+ ASSERT_TRUE(offer);
+ EXPECT_NE(nullptr, GetFirstAudioContent(offer->description()));
+ EXPECT_NE(nullptr, GetFirstVideoContent(offer->description()));
+ EXPECT_TRUE(offer->description()->HasGroup(cricket::GROUP_TYPE_BUNDLE));
+
+ rtc_options.use_rtp_mux = false;
+ offer = CreateOfferWithOptions(rtc_options);
+ ASSERT_TRUE(offer);
+ EXPECT_NE(nullptr, GetFirstAudioContent(offer->description()));
+ EXPECT_NE(nullptr, GetFirstVideoContent(offer->description()));
+ EXPECT_FALSE(offer->description()->HasGroup(cricket::GROUP_TYPE_BUNDLE));
+}
+
+// If SetMandatoryReceiveAudio(false) is called for the answer constraints, but
+// an audio section was offered, there will still be an audio section in the
+// answer.
Taylor Brandstetter 2017/08/05 00:39:09 nit: This comment should be updated since the test
Zhi Huang 2017/08/09 00:54:51 Done.
+TEST_F(PeerConnectionInterfaceTest, CreateAnswerWithConstraintsAndRemoteOffer) {
Taylor Brandstetter 2017/08/05 00:39:09 nit: This test could use a better name, like "Reje
Zhi Huang 2017/08/09 00:54:51 Done.
+ // Offer both audio and video.
+ RTCOfferAnswerOptions rtc_offer_options;
+ rtc_offer_options.offer_to_receive_audio = 1;
+ rtc_offer_options.offer_to_receive_video = 1;
+
+ CreatePeerConnection();
+ std::unique_ptr<SessionDescriptionInterface> offer;
+ CreateOfferWithOptionsAsRemoteDescription(&offer, rtc_offer_options);
+ EXPECT_NE(nullptr, GetFirstAudioContent(offer->description()));
+ EXPECT_NE(nullptr, GetFirstVideoContent(offer->description()));
+
+ // Since an offer has been created with both audio and video,
+ // Answers will contain the media types that exist in the offer regardless of
+ // the value of |answer_options.has_audio| and |answer_options.has_video|.
+ FakeConstraints answer_c;
+ // Reject both audio and video.
+ answer_c.SetMandatoryReceiveAudio(false);
+ answer_c.SetMandatoryReceiveVideo(false);
+
+ std::unique_ptr<SessionDescriptionInterface> answer;
+ ASSERT_TRUE(DoCreateAnswer(&answer, &answer_c));
+ const cricket::ContentInfo* audio_content =
+ GetFirstAudioContent(answer->description());
+ const cricket::ContentInfo* video_content =
+ GetFirstVideoContent(answer->description());
+ ASSERT_NE(nullptr, audio_content);
+ ASSERT_NE(nullptr, video_content);
+ EXPECT_TRUE(audio_content->rejected);
+ EXPECT_TRUE(video_content->rejected);
+}
+
class PeerConnectionMediaConfigTest : public testing::Test {
protected:
void SetUp() override {
@@ -3500,8 +3768,7 @@ class PeerConnectionMediaConfigTest : public testing::Test {
}
const cricket::MediaConfig TestCreatePeerConnection(
const PeerConnectionInterface::RTCConfiguration& config,
- const MediaConstraintsInterface *constraints) {
-
+ const MediaConstraintsInterface* constraints) {
rtc::scoped_refptr<PeerConnectionInterface> pc(pcf_->CreatePeerConnection(
config, constraints, nullptr, nullptr, &observer_));
EXPECT_TRUE(pc.get());
@@ -3583,177 +3850,6 @@ TEST_F(PeerConnectionMediaConfigTest,
EXPECT_TRUE(media_config.video.suspend_below_min_bitrate);
}
-// The following tests verify that session options are created correctly.
-// TODO(deadbeef): Convert these tests to be more end-to-end. Instead of
-// "verify options are converted correctly", should be "pass options into
-// CreateOffer and verify the correct offer is produced."
-
-TEST(CreateSessionOptionsTest, GetOptionsForOfferWithInvalidAudioOption) {
- RTCOfferAnswerOptions rtc_options;
- rtc_options.offer_to_receive_audio = RTCOfferAnswerOptions::kUndefined - 1;
-
- cricket::MediaSessionOptions options;
- EXPECT_FALSE(ExtractMediaSessionOptions(rtc_options, true, &options));
-
- rtc_options.offer_to_receive_audio =
- RTCOfferAnswerOptions::kMaxOfferToReceiveMedia + 1;
- EXPECT_FALSE(ExtractMediaSessionOptions(rtc_options, true, &options));
-}
-
-TEST(CreateSessionOptionsTest, GetOptionsForOfferWithInvalidVideoOption) {
- RTCOfferAnswerOptions rtc_options;
- rtc_options.offer_to_receive_video = RTCOfferAnswerOptions::kUndefined - 1;
-
- cricket::MediaSessionOptions options;
- EXPECT_FALSE(ExtractMediaSessionOptions(rtc_options, true, &options));
-
- rtc_options.offer_to_receive_video =
- RTCOfferAnswerOptions::kMaxOfferToReceiveMedia + 1;
- EXPECT_FALSE(ExtractMediaSessionOptions(rtc_options, true, &options));
-}
-
-// Test that a MediaSessionOptions is created for an offer if
-// OfferToReceiveAudio and OfferToReceiveVideo options are set.
-TEST(CreateSessionOptionsTest, GetMediaSessionOptionsForOfferWithAudioVideo) {
- RTCOfferAnswerOptions rtc_options;
- rtc_options.offer_to_receive_audio = 1;
- rtc_options.offer_to_receive_video = 1;
-
- cricket::MediaSessionOptions options;
- EXPECT_TRUE(ExtractMediaSessionOptions(rtc_options, true, &options));
- EXPECT_TRUE(options.has_audio());
- EXPECT_TRUE(options.has_video());
- EXPECT_TRUE(options.bundle_enabled);
-}
-
-// Test that a correct MediaSessionOptions is created for an offer if
-// OfferToReceiveAudio is set.
-TEST(CreateSessionOptionsTest, GetMediaSessionOptionsForOfferWithAudio) {
- RTCOfferAnswerOptions rtc_options;
- rtc_options.offer_to_receive_audio = 1;
-
- cricket::MediaSessionOptions options;
- EXPECT_TRUE(ExtractMediaSessionOptions(rtc_options, true, &options));
- EXPECT_TRUE(options.has_audio());
- EXPECT_FALSE(options.has_video());
- EXPECT_TRUE(options.bundle_enabled);
-}
-
-// Test that a correct MediaSessionOptions is created for an offer if
-// the default OfferOptions are used.
-TEST(CreateSessionOptionsTest, GetDefaultMediaSessionOptionsForOffer) {
- RTCOfferAnswerOptions rtc_options;
-
- cricket::MediaSessionOptions options;
- options.transport_options["audio"] = cricket::TransportOptions();
- options.transport_options["video"] = cricket::TransportOptions();
- EXPECT_TRUE(ExtractMediaSessionOptions(rtc_options, true, &options));
- EXPECT_TRUE(options.has_audio());
- EXPECT_FALSE(options.has_video());
- EXPECT_TRUE(options.bundle_enabled);
- EXPECT_TRUE(options.vad_enabled);
- EXPECT_FALSE(options.transport_options["audio"].ice_restart);
- EXPECT_FALSE(options.transport_options["video"].ice_restart);
-}
-
-// Test that a correct MediaSessionOptions is created for an offer if
-// OfferToReceiveVideo is set.
-TEST(CreateSessionOptionsTest, GetMediaSessionOptionsForOfferWithVideo) {
- RTCOfferAnswerOptions rtc_options;
- rtc_options.offer_to_receive_audio = 0;
- rtc_options.offer_to_receive_video = 1;
-
- cricket::MediaSessionOptions options;
- EXPECT_TRUE(ExtractMediaSessionOptions(rtc_options, true, &options));
- EXPECT_FALSE(options.has_audio());
- EXPECT_TRUE(options.has_video());
- EXPECT_TRUE(options.bundle_enabled);
-}
-
-// Test that a correct MediaSessionOptions is created for an offer if
-// UseRtpMux is set to false.
-TEST(CreateSessionOptionsTest,
- GetMediaSessionOptionsForOfferWithBundleDisabled) {
- RTCOfferAnswerOptions rtc_options;
- rtc_options.offer_to_receive_audio = 1;
- rtc_options.offer_to_receive_video = 1;
- rtc_options.use_rtp_mux = false;
-
- cricket::MediaSessionOptions options;
- EXPECT_TRUE(ExtractMediaSessionOptions(rtc_options, true, &options));
- EXPECT_TRUE(options.has_audio());
- EXPECT_TRUE(options.has_video());
- EXPECT_FALSE(options.bundle_enabled);
-}
-
-// Test that a correct MediaSessionOptions is created to restart ice if
-// IceRestart is set. It also tests that subsequent MediaSessionOptions don't
-// have |audio_transport_options.ice_restart| etc. set.
-TEST(CreateSessionOptionsTest, GetMediaSessionOptionsForOfferWithIceRestart) {
- RTCOfferAnswerOptions rtc_options;
- rtc_options.ice_restart = true;
-
- cricket::MediaSessionOptions options;
- options.transport_options["audio"] = cricket::TransportOptions();
- options.transport_options["video"] = cricket::TransportOptions();
- EXPECT_TRUE(ExtractMediaSessionOptions(rtc_options, true, &options));
- EXPECT_TRUE(options.transport_options["audio"].ice_restart);
- EXPECT_TRUE(options.transport_options["video"].ice_restart);
-
- rtc_options = RTCOfferAnswerOptions();
- EXPECT_TRUE(ExtractMediaSessionOptions(rtc_options, true, &options));
- EXPECT_FALSE(options.transport_options["audio"].ice_restart);
- EXPECT_FALSE(options.transport_options["video"].ice_restart);
-}
-
-// Test that the MediaConstraints in an answer don't affect if audio and video
-// is offered in an offer but that if kOfferToReceiveAudio or
-// kOfferToReceiveVideo constraints are true in an offer, the media type will be
-// included in subsequent answers.
-TEST(CreateSessionOptionsTest, MediaConstraintsInAnswer) {
- FakeConstraints answer_c;
- answer_c.SetMandatoryReceiveAudio(true);
- answer_c.SetMandatoryReceiveVideo(true);
-
- cricket::MediaSessionOptions answer_options;
- EXPECT_TRUE(ParseConstraintsForAnswer(&answer_c, &answer_options));
- EXPECT_TRUE(answer_options.has_audio());
- EXPECT_TRUE(answer_options.has_video());
-
- RTCOfferAnswerOptions rtc_offer_options;
-
- cricket::MediaSessionOptions offer_options;
- EXPECT_TRUE(
- ExtractMediaSessionOptions(rtc_offer_options, false, &offer_options));
- EXPECT_TRUE(offer_options.has_audio());
- EXPECT_TRUE(offer_options.has_video());
-
- RTCOfferAnswerOptions updated_rtc_offer_options;
- updated_rtc_offer_options.offer_to_receive_audio = 1;
- updated_rtc_offer_options.offer_to_receive_video = 1;
-
- cricket::MediaSessionOptions updated_offer_options;
- EXPECT_TRUE(ExtractMediaSessionOptions(updated_rtc_offer_options, false,
- &updated_offer_options));
- EXPECT_TRUE(updated_offer_options.has_audio());
- EXPECT_TRUE(updated_offer_options.has_video());
-
- // Since an offer has been created with both audio and video, subsequent
- // offers and answers should contain both audio and video.
- // Answers will only contain the media types that exist in the offer
- // regardless of the value of |updated_answer_options.has_audio| and
- // |updated_answer_options.has_video|.
- FakeConstraints updated_answer_c;
- answer_c.SetMandatoryReceiveAudio(false);
- answer_c.SetMandatoryReceiveVideo(false);
-
- cricket::MediaSessionOptions updated_answer_options;
- EXPECT_TRUE(
- ParseConstraintsForAnswer(&updated_answer_c, &updated_answer_options));
- EXPECT_TRUE(updated_answer_options.has_audio());
- EXPECT_TRUE(updated_answer_options.has_video());
-}
-
// Tests a few random fields being different.
TEST(RTCConfigurationTest, ComparisonOperators) {
PeerConnectionInterface::RTCConfiguration a;
« webrtc/pc/peerconnection.h ('K') | « webrtc/pc/peerconnection.cc ('k') | webrtc/pc/webrtcsession_unittest.cc » ('j') | webrtc/pc/webrtcsession_unittest.cc » ('J')

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