256   auto callee = CreatePeerConnection();  in TEST_F()  local
258   ASSERT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal()));  in TEST_F()
260   auto transceivers = callee->pc()->GetTransceivers();  in TEST_F()
283   auto callee = CreatePeerConnection();  in TEST_F()  local
284   callee->AddAudioTrack("a");  in TEST_F()
286   ASSERT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal()));  in TEST_F()
288   auto transceivers = callee->pc()->GetTransceivers();  in TEST_F()
304   auto callee = CreatePeerConnection();  in TEST_F()  local
305   callee->AddAudioTrack("a");  in TEST_F()
307   ASSERT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal()));  in TEST_F()
309   auto transceivers = callee->pc()->GetTransceivers();  in TEST_F()
322   auto callee = CreatePeerConnection();  in TEST_F()  local
323   auto transceiver = callee->AddTransceiver(cricket::MEDIA_TYPE_AUDIO);  in TEST_F()
325   ASSERT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal()));  in TEST_F()
327   auto transceivers = callee->pc()->GetTransceivers();  in TEST_F()
341   auto callee = CreatePeerConnection();  in TEST_F()  local
342   auto video_sender = callee->AddVideoTrack("v");  in TEST_F()
344   ASSERT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal()));  in TEST_F()
346   auto transceivers = callee->pc()->GetTransceivers();  in TEST_F()
359   auto callee = CreatePeerConnection();  in TEST_F()  local
360   callee->AddAudioTrack("a");  in TEST_F()
361   callee->pc()->GetTransceivers()[0]->Stop();  in TEST_F()
363   ASSERT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal()));  in TEST_F()
365   auto transceivers = callee->pc()->GetTransceivers();  in TEST_F()
382   auto callee = CreatePeerConnection();  in TEST_F()  local
383   callee->AddAudioTrack("a");  in TEST_F()
384   callee->AddVideoTrack("v");  in TEST_F()
386   ASSERT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal()));  in TEST_F()
389   auto callee_transceivers = callee->pc()->GetTransceivers();  in TEST_F()
405   auto callee = CreatePeerConnection();  in TEST_F()  local
411   ASSERT_TRUE(callee->SetRemoteDescription(std::move(offer)));  in TEST_F()
413   auto answer = callee->CreateAnswer();  in TEST_F()
431   auto callee = CreatePeerConnection();  in TEST_F()  local
433   ASSERT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal()));  in TEST_F()
435   callee->pc()->GetTransceivers()[0]->Stop();  in TEST_F()
437   auto answer = callee->CreateAnswer();  in TEST_F()
451   auto callee = CreatePeerConnection();  in TEST_F()  local
452   callee->AddAudioTrack("a");  in TEST_F()
454   ASSERT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal()));  in TEST_F()
456   auto answer = callee->CreateAnswer();  in TEST_F()
473   auto callee = CreatePeerConnection();  in TEST_F()  local
474   callee->AddAudioTrack("a");  in TEST_F()
476   ASSERT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal()));  in TEST_F()
477   ASSERT_TRUE(callee->SetLocalDescription(callee->CreateAnswer()));  in TEST_F()
479   auto transceivers = callee->pc()->GetTransceivers();  in TEST_F()
494   auto callee = CreatePeerConnection();  in TEST_F()  local
495   callee->AddAudioTrack("a");  in TEST_F()
496   auto callee_audio = callee->pc()->GetTransceivers()[0];  in TEST_F()
499   ASSERT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal()));  in TEST_F()
501       caller->SetRemoteDescription(callee->CreateAnswerAndSetAsLocal()));  in TEST_F()
519   auto callee = CreatePeerConnection();  in TEST_F()  local
520   callee->AddAudioTrack("a");  in TEST_F()
521   callee->pc()->GetTransceivers()[0]->SetDirection(  in TEST_F()
524   ASSERT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal()));  in TEST_F()
526       caller->SetRemoteDescription(callee->CreateAnswerAndSetAsLocal()));  in TEST_F()
529   EXPECT_FALSE(callee->pc()->GetTransceivers()[0]->stopped());  in TEST_F()
539   auto callee = CreatePeerConnection();  in TEST_F()  local
541   ASSERT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal()));  in TEST_F()
543       caller->SetRemoteDescription(callee->CreateAnswerAndSetAsLocal()));  in TEST_F()
561   auto callee = CreatePeerConnection();  in TEST_F()  local
563   ASSERT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal()));  in TEST_F()
565       caller->SetRemoteDescription(callee->CreateAnswerAndSetAsLocal()));  in TEST_F()
569   ASSERT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal()));  in TEST_F()
571   auto transceivers = callee->pc()->GetTransceivers();  in TEST_F()
582   auto callee = CreatePeerConnection();  in TEST_F()  local
584   ASSERT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal()));  in TEST_F()
586       caller->SetRemoteDescription(callee->CreateAnswerAndSetAsLocal()));  in TEST_F()
605   auto callee = CreatePeerConnection();  in TEST_F()  local
607   ASSERT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal()));  in TEST_F()
608   callee->pc()->GetTransceivers()[0]->Stop();  in TEST_F()
610       caller->SetRemoteDescription(callee->CreateAnswerAndSetAsLocal()));  in TEST_F()
615   EXPECT_EQ(first_mid, callee->pc()->GetTransceivers()[0]->mid());  in TEST_F()
620   callee->AddAudioTrack("audio2");  in TEST_F()
634   ASSERT_TRUE(callee->SetRemoteDescription(std::move(offer)));  in TEST_F()
635   EXPECT_EQ(absl::nullopt, callee->pc()->GetTransceivers()[0]->mid());  in TEST_F()
636   EXPECT_EQ(second_mid, callee->pc()->GetTransceivers()[1]->mid());  in TEST_F()
639   auto answer = callee->CreateAnswer();  in TEST_F()
647       callee->SetLocalDescription(CloneSessionDescription(answer.get())));  in TEST_F()
653   auto callee_transceivers = callee->pc()->GetTransceivers();  in TEST_F()
665   auto callee = CreatePeerConnection();  in TEST_F()  local
666   ASSERT_TRUE(caller->ExchangeOfferAnswerWith(callee.get()));  in TEST_F()
668   ASSERT_TRUE(caller->ExchangeOfferAnswerWith(callee.get()));  in TEST_F()
727   auto callee = CreatePeerConnection();  in TEST_P()  local
729   ASSERT_TRUE(caller->ExchangeOfferAnswerWith(callee.get()));  in TEST_P()
734   ASSERT_TRUE(caller->ExchangeOfferAnswerWith(callee.get()));  in TEST_P()
757   ASSERT_TRUE(callee->SetRemoteDescription(std::move(offer)));  in TEST_P()
758   auto callee_transceivers = callee->pc()->GetTransceivers();  in TEST_P()
766   auto answer = callee->CreateAnswer();  in TEST_P()
775       callee->SetLocalDescription(CloneSessionDescription(answer.get())));  in TEST_P()
781   ASSERT_EQ(2u, callee->pc()->GetTransceivers().size());  in TEST_P()
789   auto callee = CreatePeerConnection();  in TEST_P()  local
791   ASSERT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal()));  in TEST_P()
794   ASSERT_EQ(1u, callee->pc()->GetTransceivers().size());  in TEST_P()
795   auto callee_first_transceiver = callee->pc()->GetTransceivers()[0];  in TEST_P()
800       caller->SetRemoteDescription(callee->CreateAnswerAndSetAsLocal()));  in TEST_P()
822   ASSERT_TRUE(callee->SetRemoteDescription(std::move(offer)));  in TEST_P()
823   auto callee_transceivers = callee->pc()->GetTransceivers();  in TEST_P()
831   auto answer = callee->CreateAnswer();  in TEST_P()
840       callee->SetLocalDescription(CloneSessionDescription(answer.get())));  in TEST_P()
846   ASSERT_EQ(2u, callee->pc()->GetTransceivers().size());  in TEST_P()
854   auto callee = CreatePeerConnection();  in TEST_P()  local
856   ASSERT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal()));  in TEST_P()
859   ASSERT_EQ(1u, callee->pc()->GetTransceivers().size());  in TEST_P()
860   auto callee_first_transceiver = callee->pc()->GetTransceivers()[0];  in TEST_P()
865       caller->SetRemoteDescription(callee->CreateAnswerAndSetAsLocal()));  in TEST_P()
869   auto callee_second_transceiver = callee->AddTransceiver(second_type_);  in TEST_P()
870   auto offer = callee->CreateOffer();  in TEST_P()
881       callee->SetLocalDescription(CloneSessionDescription(offer.get())));  in TEST_P()
909   ASSERT_TRUE(callee->SetRemoteDescription(std::move(answer)));  in TEST_P()
910   ASSERT_EQ(2u, callee->pc()->GetTransceivers().size());  in TEST_P()
957   auto callee = CreatePeerConnection();  in TEST_P()  local
959   ASSERT_TRUE(caller->ExchangeOfferAnswerWith(callee.get()));  in TEST_P()
995   auto callee = CreatePeerConnection();  in TEST_P()  local
997   ASSERT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal()));  in TEST_P()
999   ASSERT_EQ(1u, callee->pc()->GetTransceivers().size());  in TEST_P()
1000   auto callee_first_transceiver = callee->pc()->GetTransceivers()[0];  in TEST_P()
1005   ASSERT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal()));  in TEST_P()
1007   auto callee_second_transceiver = callee->AddTransceiver(second_type_);  in TEST_P()
1011   auto reoffer = callee->CreateOffer();  in TEST_P()
1032   auto callee = CreatePeerConnection();  in TEST_P()  local
1034   ASSERT_TRUE(caller->ExchangeOfferAnswerWith(callee.get()));  in TEST_P()
1036   ASSERT_EQ(1u, callee->pc()->GetTransceivers().size());  in TEST_P()
1037   auto callee_first_transceiver = callee->pc()->GetTransceivers()[0];  in TEST_P()
1042   ASSERT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal()));  in TEST_P()
1044   auto callee_second_transceiver = callee->AddTransceiver(second_type_);  in TEST_P()
1048   auto reoffer = callee->CreateOffer();  in TEST_P()
1079   auto callee = CreatePeerConnection();  in TEST_F()  local
1081   ASSERT_TRUE(caller->ExchangeOfferAnswerWith(callee.get()));  in TEST_F()
1085   ASSERT_TRUE(caller->ExchangeOfferAnswerWith(callee.get()));  in TEST_F()
1099   ASSERT_TRUE(callee->SetRemoteDescription(std::move(offer)));  in TEST_F()
1101   auto answer = callee->CreateAnswer();  in TEST_F()
1116   auto callee = CreatePeerConnection();  in TEST_F()  local
1118   ASSERT_TRUE(caller->ExchangeOfferAnswerWith(callee.get()));  in TEST_F()
1159   auto callee = CreatePeerConnection();  in TEST_F()  local
1171   ASSERT_TRUE(callee->SetRemoteDescription(std::move(offer)));  in TEST_F()
1172   auto callee_transceivers = callee->pc()->GetTransceivers();  in TEST_F()
1176   auto answer = callee->CreateAnswer();  in TEST_F()
1182       callee->SetLocalDescription(CloneSessionDescription(answer.get())));  in TEST_F()
1203   auto callee = CreatePeerConnection();  in TEST_F()  local
1210   ASSERT_TRUE(callee->SetRemoteDescription(std::move(offer)));  in TEST_F()
1211   ASSERT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal()));  in TEST_F()
1237   auto callee = CreatePeerConnection();  in TEST_F()  local
1244   ASSERT_TRUE(callee->SetRemoteDescription(std::move(offer)));  in TEST_F()
1245   ASSERT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal()));  in TEST_F()
1260   auto callee = CreatePeerConnection();  in TEST_F()  local
1261   callee->AddAudioTrack("a");  in TEST_F()
1262   callee->AddVideoTrack("v");  in TEST_F()
1264   ASSERT_TRUE(caller->ExchangeOfferAnswerWith(callee.get()));  in TEST_F()
1267   EXPECT_EQ(2u, callee->pc()->GetTransceivers().size());  in TEST_F()
1269   ASSERT_TRUE(callee->ExchangeOfferAnswerWith(caller.get()));  in TEST_F()
1272   EXPECT_EQ(2u, callee->pc()->GetTransceivers().size());  in TEST_F()
1336   auto callee = CreatePeerConnection();  in TEST_F()  local
1350   ASSERT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal()));  in TEST_F()
1352   auto answer = callee->CreateAnswer();  in TEST_F()
1365   auto callee = CreatePeerConnection();  in TEST_F()  local
1366   callee->AddAudioTrack("audio");  in TEST_F()
1368   ASSERT_TRUE(caller->ExchangeOfferAnswerWith(callee.get()));  in TEST_F()
1374   ASSERT_TRUE(caller->ExchangeOfferAnswerWith(callee.get()));  in TEST_F()
1376   auto* offer = callee->pc()->remote_description();  in TEST_F()
1394   auto callee = CreatePeerConnection();  in TEST_F()  local
1396   ASSERT_TRUE(caller->ExchangeOfferAnswerWith(callee.get()));  in TEST_F()
1400   ASSERT_TRUE(caller->ExchangeOfferAnswerWith(callee.get()));  in TEST_F()
1402   auto* offer = callee->pc()->remote_description();  in TEST_F()
1416   auto callee = CreatePeerConnection();  in TEST_F()  local
1419   ASSERT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal()));  in TEST_F()
1421   ASSERT_EQ(1u, callee->pc()->GetReceivers().size());  in TEST_F()
1422   auto receiver = callee->pc()->GetReceivers()[0];  in TEST_F()
1433   auto callee = CreatePeerConnection();  in TEST_F()  local
1435   callee->AddAudioTrack("dummy_track");  in TEST_F()
1437   ASSERT_EQ(1u, callee->pc()->GetReceivers().size());  in TEST_F()
1438   auto receiver = callee->pc()->GetReceivers()[0];  in TEST_F()
1441   ASSERT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal()));  in TEST_F()
1453   auto callee = CreatePeerConnection();  in TEST_F()  local
1456   ASSERT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal()));  in TEST_F()
1458   const auto& track_events = callee->observer()->add_track_events_;  in TEST_F()
1473   auto callee = CreatePeerConnection();  in TEST_F()  local
1476   ASSERT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal()));  in TEST_F()
1478   const auto& track_events = callee->observer()->add_track_events_;  in TEST_F()
1501   auto callee = CreatePeerConnection();  in TEST_F()  local
1505   ASSERT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal()));  in TEST_F()
1507   const auto& track_events = callee->observer()->add_track_events_;  in TEST_F()
1531   auto callee = CreatePeerConnection();  in TEST_F()  local
1534   ASSERT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal()));  in TEST_F()
1536   const auto& track_events = callee->observer()->add_track_events_;  in TEST_F()
1548   auto callee = CreatePeerConnection();  in TEST_F()  local
1552   ASSERT_TRUE(caller->ExchangeOfferAnswerWith(callee.get()));  in TEST_F()
1563   auto callee = CreatePeerConnection();  in TEST_F()  local
1566   ASSERT_TRUE(callee->SetRemoteDescription(caller->CreateOffer()));  in TEST_F()
1569   ASSERT_FALSE(caller->SetRemoteDescription(callee->CreateAnswer(), &error));  in TEST_F()
1579   auto callee = CreatePeerConnection();  in TEST_F()  local
1584   ASSERT_FALSE(callee->SetRemoteDescription(caller->CreateOffer(), &error));  in TEST_F()
1594   auto callee = CreatePeerConnection(config_planb);  in TEST_F()  local
1596   callee->AddVideoTrack("video1");  in TEST_F()
1597   callee->AddVideoTrack("video2");  in TEST_F()
1599   ASSERT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal()));  in TEST_F()
1644   auto callee = CreatePeerConnection();  in TEST_F()  local
1645   callee->AddAudioTrack("audio");  in TEST_F()
1650   ASSERT_TRUE(callee->SetRemoteDescription(std::move(offer)));  in TEST_F()
1651   EXPECT_TRUE(callee->SetLocalDescription(callee->CreateAnswer()));  in TEST_F()
1657   auto callee = CreatePeerConnection();  in TEST_F()  local
1658   callee->AddAudioTrack("audio");  in TEST_F()
1659   callee->AddVideoTrack("video");  in TEST_F()
1664   ASSERT_TRUE(callee->SetRemoteDescription(std::move(offer)));  in TEST_F()
1665   EXPECT_TRUE(callee->SetLocalDescription(callee->CreateAnswer()));  in TEST_F()
1670   auto callee = CreatePeerConnection();  in TEST_F()  local
1671   callee->AddAudioTrack("audio");  in TEST_F()
1673   ASSERT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal()));  in TEST_F()
1675   auto answer = callee->CreateAnswer();  in TEST_F()
1684   auto callee = CreatePeerConnection();  in TEST_F()  local
1685   callee->AddAudioTrack("audio");  in TEST_F()
1686   callee->AddVideoTrack("video");  in TEST_F()
1688   ASSERT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal()));  in TEST_F()
1690   auto answer = callee->CreateAnswer();  in TEST_F()
1702   auto callee = CreatePeerConnection();  in TEST_F()  local
1703   callee->AddAudioTrack("audio");  in TEST_F()
1709       callee->SetRemoteDescription(CloneSessionDescription(offer.get())));  in TEST_F()
1710   ASSERT_TRUE(callee->SetRemoteDescription(std::move(offer)));  in TEST_F()
1711   EXPECT_TRUE(callee->SetLocalDescription(callee->CreateAnswer()));  in TEST_F()
1735   auto callee = CreatePeerConnection(config);  in TEST_F()  local
1741   EXPECT_TRUE(caller->SetRemoteDescription(callee->CreateOffer()));  in TEST_F()
1749   auto callee = CreatePeerConnection(config);  in TEST_F()  local
1753   EXPECT_FALSE(caller->SetRemoteDescription(callee->CreateOffer()));  in TEST_F()
1777   auto callee = CreatePeerConnection();  in TEST_F()  local
1778   EXPECT_TRUE(callee->SetRemoteDescription(caller->CreateOffer()));  in TEST_F()
1779   EXPECT_TRUE(callee->SetRemoteDescription(caller->CreateRollback()));  in TEST_F()
1780   EXPECT_EQ(callee->signaling_state(), PeerConnectionInterface::kStable);  in TEST_F()
1781   EXPECT_EQ(callee->pc()->pending_remote_description(), nullptr);  in TEST_F()
1783   EXPECT_TRUE(callee->SetRemoteDescription(caller->CreateOffer()));  in TEST_F()
1784   EXPECT_TRUE(callee->SetLocalDescription(caller->CreateRollback()));  in TEST_F()
1785   EXPECT_EQ(callee->signaling_state(), PeerConnectionInterface::kStable);  in TEST_F()
1786   EXPECT_EQ(callee->pc()->pending_remote_description(), nullptr);  in TEST_F()
1794   auto callee = CreatePeerConnection(config);  in TEST_F()  local
1795   EXPECT_TRUE(callee->CreateOfferAndSetAsLocal());  in TEST_F()
1796   EXPECT_TRUE(callee->SetRemoteDescription(caller->CreateOffer()));  in TEST_F()
1797   EXPECT_EQ(callee->signaling_state(),  in TEST_F()
1799   EXPECT_TRUE(callee->CreateAnswerAndSetAsLocal());  in TEST_F()
1800   EXPECT_FALSE(callee->observer()->negotiation_needed());  in TEST_F()
1808   auto callee = CreatePeerConnection(config);  in TEST_F()  local
1810   callee->AddAudioTrack("b");  in TEST_F()
1811   EXPECT_TRUE(callee->CreateOfferAndSetAsLocal());  in TEST_F()
1812   callee->observer()->clear_negotiation_needed();  in TEST_F()
1813   EXPECT_TRUE(callee->SetRemoteDescription(caller->CreateOffer()));  in TEST_F()
1814   EXPECT_EQ(callee->signaling_state(),  in TEST_F()
1816   EXPECT_TRUE(callee->CreateAnswerAndSetAsLocal());  in TEST_F()
1818   EXPECT_FALSE(callee->observer()->negotiation_needed());  in TEST_F()
1819   EXPECT_EQ(callee->observer()->remove_track_events_.size(), 0u);  in TEST_F()
1827   auto callee = CreatePeerConnection(config);  in TEST_F()  local
1828   callee->AddAudioTrack("a");  in TEST_F()
1829   EXPECT_TRUE(callee->CreateOfferAndSetAsLocal());  in TEST_F()
1830   callee->observer()->clear_negotiation_needed();  in TEST_F()
1831   EXPECT_TRUE(callee->SetRemoteDescription(caller->CreateOffer()));  in TEST_F()
1832   EXPECT_EQ(callee->signaling_state(),  in TEST_F()
1834   EXPECT_FALSE(callee->observer()->negotiation_needed());  in TEST_F()
1835   EXPECT_TRUE(callee->CreateAnswerAndSetAsLocal());  in TEST_F()
1836   EXPECT_TRUE(callee->observer()->negotiation_needed());  in TEST_F()
1837   EXPECT_EQ(callee->observer()->remove_track_events_.size(), 0u);  in TEST_F()
1845   auto callee = CreatePeerConnection(config);  in TEST_F()  local
1846   EXPECT_TRUE(callee->CreateOfferAndSetAsLocal());  in TEST_F()
1847   EXPECT_FALSE(callee->SetRemoteDescription(  in TEST_F()
1849   EXPECT_EQ(callee->signaling_state(),  in TEST_F()
1856   auto callee = CreatePeerConnection();  in TEST_F()  local
1857   EXPECT_TRUE(callee->SetRemoteDescription(caller->CreateOffer()));  in TEST_F()
1858   EXPECT_EQ(callee->pc()->GetTransceivers().size(), 1u);  in TEST_F()
1859   EXPECT_TRUE(callee->SetRemoteDescription(caller->CreateRollback()));  in TEST_F()
1860   EXPECT_EQ(callee->pc()->GetTransceivers().size(), 0u);  in TEST_F()
1861   EXPECT_EQ(callee->observer()->remove_track_events_.size(), 1u);  in TEST_F()
1867   auto callee = CreatePeerConnection();  in TEST_F()  local
1868   EXPECT_TRUE(callee->SetRemoteDescription(caller->CreateOffer()));  in TEST_F()
1869   callee->AddAudioTrack("a");  in TEST_F()
1870   EXPECT_EQ(callee->pc()->GetTransceivers().size(), 1u);  in TEST_F()
1871   EXPECT_TRUE(callee->SetRemoteDescription(caller->CreateRollback()));  in TEST_F()
1873   EXPECT_EQ(callee->pc()->GetTransceivers().size(), 1u);  in TEST_F()
1875   EXPECT_EQ(callee->pc()->GetTransceivers()[0]->mid(), absl::nullopt);  in TEST_F()
1877   EXPECT_TRUE(callee->SetRemoteDescription(caller->CreateOffer()));  in TEST_F()
1878   EXPECT_EQ(callee->pc()->GetTransceivers().size(), 1u);  in TEST_F()
1879   EXPECT_EQ(callee->observer()->remove_track_events_.size(), 1u);  in TEST_F()
1886   auto callee = CreatePeerConnection();  in TEST_F()  local
1887   EXPECT_TRUE(callee->SetRemoteDescription(caller->CreateOffer()));  in TEST_F()
1888   callee->AddAudioTrack("a");  in TEST_F()
1889   callee->pc()->GetTransceivers()[0]->sender()->SetTrack(nullptr);  in TEST_F()
1890   EXPECT_EQ(callee->pc()->GetTransceivers()[0]->sender()->track(), nullptr);  in TEST_F()
1891   EXPECT_EQ(callee->pc()->GetTransceivers().size(), 1u);  in TEST_F()
1892   EXPECT_TRUE(callee->SetRemoteDescription(caller->CreateRollback()));  in TEST_F()
1894   EXPECT_EQ(callee->pc()->GetTransceivers().size(), 1u);  in TEST_F()
1896   EXPECT_EQ(callee->pc()->GetTransceivers()[0]->mid(), absl::nullopt);  in TEST_F()
1898   EXPECT_TRUE(callee->SetRemoteDescription(caller->CreateOffer()));  in TEST_F()
1899   EXPECT_EQ(callee->pc()->GetTransceivers().size(), 1u);  in TEST_F()
1900   EXPECT_EQ(callee->observer()->remove_track_events_.size(), 1u);  in TEST_F()
1906   auto callee = CreatePeerConnection();  in TEST_F()  local
1907   callee->AddAudioTrack("a");  in TEST_F()
1908   auto offer = callee->CreateOffer();  in TEST_F()
1909   EXPECT_TRUE(callee->SetRemoteDescription(caller->CreateOffer()));  in TEST_F()
1910   EXPECT_EQ(callee->pc()->GetTransceivers().size(), 1u);  in TEST_F()
1911   EXPECT_NE(callee->pc()->GetTransceivers()[0]->mid(), absl::nullopt);  in TEST_F()
1912   EXPECT_TRUE(callee->SetRemoteDescription(caller->CreateRollback()));  in TEST_F()
1913   EXPECT_EQ(callee->pc()->GetTransceivers()[0]->mid(), absl::nullopt);  in TEST_F()
1914   EXPECT_TRUE(callee->SetLocalDescription(std::move(offer)));  in TEST_F()
1918   auto callee = CreatePeerConnection();  in TEST_F()  local
1919   callee->AddVideoTrack("a");  in TEST_F()
1920   auto offer = callee->CreateOffer();  in TEST_F()
1924   auto mid = callee->pc()->GetTransceivers()[0]->mid();  in TEST_F()
1925   EXPECT_TRUE(callee->SetRemoteDescription(caller->CreateOffer()));  in TEST_F()
1926   EXPECT_EQ(callee->pc()->GetTransceivers().size(), 2u);  in TEST_F()
1927   EXPECT_TRUE(callee->SetRemoteDescription(caller->CreateRollback()));  in TEST_F()
1928   EXPECT_EQ(callee->pc()->GetTransceivers().size(), 1u);  in TEST_F()
1929   EXPECT_EQ(callee->pc()->GetTransceivers()[0]->mid(), mid);  in TEST_F()
1930   EXPECT_EQ(callee->pc()->GetTransceivers()[0]->media_type(),  in TEST_F()
1932   EXPECT_TRUE(callee->SetLocalDescription(std::move(offer)));  in TEST_F()
1933   EXPECT_EQ(callee->observer()->remove_track_events_.size(),  in TEST_F()
1934             callee->observer()->add_track_events_.size());  in TEST_F()
1938   auto callee = CreatePeerConnection();  in TEST_F()  local
1939   callee->AddVideoTrack("a");  in TEST_F()
1943   EXPECT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal()));  in TEST_F()
1945       caller->SetRemoteDescription(callee->CreateAnswerAndSetAsLocal()));  in TEST_F()
1947   callee->observer()->clear_negotiation_needed();  in TEST_F()
1948   size_t transceiver_count = callee->pc()->GetTransceivers().size();  in TEST_F()
1949   auto mid_0 = callee->pc()->GetTransceivers()[0]->mid();  in TEST_F()
1950   auto mid_1 = callee->pc()->GetTransceivers()[1]->mid();  in TEST_F()
1951   EXPECT_TRUE(callee->SetRemoteDescription(caller->CreateOffer()));  in TEST_F()
1952   EXPECT_TRUE(callee->SetRemoteDescription(caller->CreateRollback()));  in TEST_F()
1953   EXPECT_EQ(callee->pc()->GetTransceivers().size(), transceiver_count);  in TEST_F()
1954   EXPECT_EQ(callee->pc()->GetTransceivers()[0]->mid(), mid_0);  in TEST_F()
1955   EXPECT_EQ(callee->pc()->GetTransceivers()[1]->mid(), mid_1);  in TEST_F()
1956   EXPECT_EQ(callee->observer()->remove_track_events_.size(), 0u);  in TEST_F()
1957   EXPECT_FALSE(callee->observer()->negotiation_needed());  in TEST_F()
1966   auto callee = CreatePeerConnection(config);  in TEST_F()  local
1967   callee->AddTransceiver(cricket::MEDIA_TYPE_VIDEO);  in TEST_F()
1968   EXPECT_TRUE(callee->CreateOfferAndSetAsLocal());  in TEST_F()
1969   auto initial_mid = callee->pc()->GetTransceivers()[0]->mid();  in TEST_F()
1970   EXPECT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal()));  in TEST_F()
1971   EXPECT_EQ(callee->pc()->GetTransceivers().size(), 2u);  in TEST_F()
1972   EXPECT_EQ(callee->pc()->GetTransceivers()[0]->mid(), absl::nullopt);  in TEST_F()
1973   EXPECT_EQ(callee->pc()->GetTransceivers()[1]->mid(),  in TEST_F()
1975   EXPECT_TRUE(callee->CreateAnswerAndSetAsLocal());  // Go to stable.  in TEST_F()
1976   EXPECT_TRUE(callee->CreateOfferAndSetAsLocal());  in TEST_F()
1977   EXPECT_NE(callee->pc()->GetTransceivers()[0]->mid(), initial_mid);  in TEST_F()
1986   auto callee = CreatePeerConnection(config);  in TEST_F()  local
1987   EXPECT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal()));  in TEST_F()
1988   EXPECT_TRUE(callee->CreateAnswerAndSetAsLocal());  in TEST_F()
1990   callee->AddVideoTrack("b");  in TEST_F()
1991   EXPECT_TRUE(callee->CreateOfferAndSetAsLocal());  in TEST_F()
1992   EXPECT_EQ(callee->pc()->GetTransceivers().size(), 2u);  in TEST_F()
1994       callee->pc()->GetTransceivers()[0]->sender()->dtls_transport();  in TEST_F()
1995   EXPECT_EQ(callee->pc()->GetTransceivers()[0]->sender()->dtls_transport(),  in TEST_F()
1996             callee->pc()->GetTransceivers()[1]->sender()->dtls_transport());  in TEST_F()
1997   EXPECT_NE(callee->pc()->GetTransceivers()[1]->sender()->dtls_transport(),  in TEST_F()
1999   EXPECT_TRUE(callee->SetRemoteDescription(caller->CreateRollback()));  in TEST_F()
2000   EXPECT_EQ(callee->pc()->GetTransceivers()[0]->sender()->dtls_transport(),  in TEST_F()
2002   EXPECT_EQ(callee->pc()->GetTransceivers()[1]->sender()->dtls_transport(),  in TEST_F()
2004   EXPECT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal()));  in TEST_F()
2006   EXPECT_EQ(callee->pc()->GetTransceivers()[0]->sender()->dtls_transport(),  in TEST_F()
2037   auto callee = CreatePeerConnection();  in TEST_F()  local
2038   EXPECT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal()));  in TEST_F()
2040       caller->SetRemoteDescription(callee->CreateAnswerAndSetAsLocal()));  in TEST_F()
2041   callee->AddAudioTrack("a");  in TEST_F()
2042   callee->pc()->GetTransceivers()[0]->SetDirection(  in TEST_F()
2044   EXPECT_TRUE(callee->CreateOfferAndSetAsLocal());  in TEST_F()
2045   EXPECT_EQ(callee->pc()->GetTransceivers().size(), 1u);  in TEST_F()
2047       callee->pc()->GetTransceivers()[0]->receiver()->dtls_transport();  in TEST_F()
2048   EXPECT_TRUE(callee->SetRemoteDescription(caller->CreateRollback()));  in TEST_F()
2049   EXPECT_EQ(callee->pc()->GetTransceivers()[0]->direction(),  in TEST_F()
2053   EXPECT_EQ(callee->pc()->GetTransceivers()[0]->receiver()->dtls_transport(),  in TEST_F()
2060   auto callee = CreatePeerConnection();  in TEST_F()  local
2061   callee->AddAudioTrack("a");  in TEST_F()
2062   EXPECT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal()));  in TEST_F()
2064       caller->SetRemoteDescription(callee->CreateAnswerAndSetAsLocal()));  in TEST_F()
2067   EXPECT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal()));  in TEST_F()
2068   EXPECT_EQ(callee->pc()->GetTransceivers().size(), 1u);  in TEST_F()
2070   EXPECT_EQ(callee->pc()->GetTransceivers()[0]->direction(),  in TEST_F()
2073       callee->pc()->GetTransceivers()[0]->sender()->dtls_transport();  in TEST_F()
2074   EXPECT_EQ(callee->observer()->add_track_events_.size(), 1u);  in TEST_F()
2075   EXPECT_EQ(callee->observer()->remove_track_events_.size(), 1u);  in TEST_F()
2076   EXPECT_TRUE(callee->SetRemoteDescription(caller->CreateRollback()));  in TEST_F()
2077   EXPECT_EQ(callee->pc()->GetTransceivers().size(), 1u);  in TEST_F()
2078   EXPECT_EQ(callee->pc()->GetTransceivers()[0]->direction(),  in TEST_F()
2081   EXPECT_EQ(callee->pc()->GetTransceivers()[0]->sender()->dtls_transport(),  in TEST_F()
2083   EXPECT_EQ(callee->observer()->remove_track_events_.size(), 1u);  in TEST_F()
2087   auto callee = CreatePeerConnection();  in TEST_F()  local
2088   callee->AddTransceiver(cricket::MEDIA_TYPE_AUDIO);  in TEST_F()
2089   EXPECT_TRUE(callee->CreateOfferAndSetAsLocal());  in TEST_F()
2090   callee->AddTransceiver(cricket::MEDIA_TYPE_VIDEO);  in TEST_F()
2091   EXPECT_TRUE(callee->CreateOfferAndSetAsLocal());  in TEST_F()
2092   callee->observer()->clear_negotiation_needed();  in TEST_F()
2093   EXPECT_TRUE(callee->SetRemoteDescription(callee->CreateRollback()));  in TEST_F()
2094   EXPECT_TRUE(callee->observer()->negotiation_needed());  in TEST_F()
2095   EXPECT_EQ(callee->pc()->GetTransceivers().size(), 2u);  in TEST_F()
2096   EXPECT_EQ(callee->pc()->GetTransceivers()[0]->mid(), absl::nullopt);  in TEST_F()
2097   EXPECT_EQ(callee->pc()->GetTransceivers()[1]->mid(), absl::nullopt);  in TEST_F()
2103   auto callee = CreatePeerConnection();  in TEST_F()  local
2104   callee->AddTransceiver(cricket::MEDIA_TYPE_AUDIO);  in TEST_F()
2107   EXPECT_TRUE(callee->SetRemoteDescription(caller->CreateOffer()));  in TEST_F()
2108   EXPECT_TRUE(callee->SetRemoteDescription(caller->CreateOffer()));  in TEST_F()
2112   auto callee = CreatePeerConnection();  in TEST_F()  local
2116   EXPECT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal()));  in TEST_F()
2118       caller->SetRemoteDescription(callee->CreateAnswerAndSetAsLocal()));  in TEST_F()
2120   EXPECT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal()));  in TEST_F()
2122   EXPECT_TRUE(callee->SetRemoteDescription(caller->CreateOfferAndSetAsLocal()));  in TEST_F()
2123   EXPECT_EQ(callee->pc()->GetTransceivers()[0]->receiver()->stream_ids()[0],  in TEST_F()
2125   EXPECT_TRUE(callee->SetRemoteDescription(callee->CreateRollback()));  in TEST_F()
2126   EXPECT_EQ(callee->pc()->GetTransceivers()[0]->receiver()->stream_ids().size(),  in TEST_F()
2128   EXPECT_EQ(callee->pc()->GetTransceivers()[0]->receiver()->stream_ids()[0],  in TEST_F()
2138   auto callee = CreatePeerConnection(config);  in TEST_F()  local
2139   callee->CreateDataChannel("dummy");  in TEST_F()
2140   EXPECT_TRUE(callee->CreateOfferAndSetAsLocal());  in TEST_F()
2141   EXPECT_TRUE(callee->SetRemoteDescription(caller->CreateOffer()));  in TEST_F()
2142   EXPECT_TRUE(callee->CreateAnswerAndSetAsLocal());  in TEST_F()
2143   EXPECT_TRUE(callee->observer()->negotiation_needed());  in TEST_F()
2144   EXPECT_TRUE(callee->CreateOfferAndSetAsLocal());  in TEST_F()
2149   auto callee = CreatePeerConnection();  in TEST_F()  local
2151   EXPECT_TRUE(callee->SetRemoteDescription(caller->CreateOffer()));  in TEST_F()
2152   EXPECT_TRUE(callee->SetRemoteDescription(callee->CreateRollback()));  in TEST_F()
2153   callee->AddTransceiver(cricket::MEDIA_TYPE_VIDEO);  in TEST_F()
2154   EXPECT_TRUE(callee->CreateOfferAndSetAsLocal());  in TEST_F()
2160   auto callee = CreatePeerConnection();  in TEST_F()  local
2162   EXPECT_TRUE(callee->SetRemoteDescription(caller->CreateOffer()));  in TEST_F()
2163   EXPECT_TRUE(callee->SetRemoteDescription(callee->CreateRollback()));  in TEST_F()
2164   callee->AddTransceiver(cricket::MEDIA_TYPE_VIDEO);  in TEST_F()
2165   callee->CreateDataChannel("dummy");  in TEST_F()
2166   EXPECT_TRUE(callee->CreateOfferAndSetAsLocal());  in TEST_F()
2171   auto callee = CreatePeerConnection();  in TEST_F()  local
2173   EXPECT_TRUE(callee->SetRemoteDescription(caller->CreateOffer()));  in TEST_F()
2174   EXPECT_TRUE(callee->SetRemoteDescription(callee->CreateRollback()));  in TEST_F()
2175   callee->CreateDataChannel("dummy");  in TEST_F()
2176   EXPECT_TRUE(callee->CreateOfferAndSetAsLocal());  in TEST_F()
2181   auto callee = CreatePeerConnection();  in TEST_F()  local
2183   EXPECT_TRUE(callee->SetRemoteDescription(caller->CreateOffer()));  in TEST_F()
2184   EXPECT_TRUE(callee->SetRemoteDescription(callee->CreateRollback()));  in TEST_F()
2185   callee->CreateDataChannel("dummy");  in TEST_F()
2186   EXPECT_TRUE(callee->CreateOfferAndSetAsLocal());  in TEST_F()
2192   auto callee = CreatePeerConnection();  in TEST_F()  local
2194   EXPECT_TRUE(callee->SetRemoteDescription(caller->CreateOffer()));  in TEST_F()
2195   EXPECT_TRUE(callee->SetRemoteDescription(callee->CreateRollback()));  in TEST_F()
2196   callee->CreateDataChannel("dummy");  in TEST_F()
2197   callee->AddTransceiver(cricket::MEDIA_TYPE_VIDEO);  in TEST_F()
2198   EXPECT_TRUE(callee->CreateOfferAndSetAsLocal());  in TEST_F()