diff options
Diffstat (limited to 'media/webrtc/signaling/gtest/jsep_session_unittest.cpp')
| -rw-r--r-- | media/webrtc/signaling/gtest/jsep_session_unittest.cpp | 7427 |
1 files changed, 7427 insertions, 0 deletions
diff --git a/media/webrtc/signaling/gtest/jsep_session_unittest.cpp b/media/webrtc/signaling/gtest/jsep_session_unittest.cpp new file mode 100644 index 0000000000..43b62b5f28 --- /dev/null +++ b/media/webrtc/signaling/gtest/jsep_session_unittest.cpp @@ -0,0 +1,7427 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=2 et sw=2 tw=80: */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this file, + * You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include <iostream> +#include <map> + +#include "nss.h" +#include "ssl.h" + +#include "mozilla/Preferences.h" +#include "mozilla/RefPtr.h" +#include "mozilla/Tuple.h" + +#define GTEST_HAS_RTTI 0 +#include "gtest/gtest.h" + +#include "sdp/SdpMediaSection.h" +#include "sdp/SipccSdpParser.h" +#include "jsep/JsepCodecDescription.h" +#include "jsep/JsepTrack.h" +#include "jsep/JsepSession.h" +#include "jsep/JsepSessionImpl.h" + +namespace mozilla { +static std::string kAEqualsCandidate("a=candidate:"); +const static size_t kNumCandidatesPerComponent = 3; + +class JsepSessionTestBase : public ::testing::Test { + public: + static void SetUpTestCase() { + NSS_NoDB_Init(nullptr); + NSS_SetDomesticPolicy(); + } +}; + +class FakeUuidGenerator : public mozilla::JsepUuidGenerator { + public: + bool Generate(std::string* str) { + std::ostringstream os; + os << "FAKE_UUID_" << ++ctr; + *str = os.str(); + + return true; + } + + mozilla::JsepUuidGenerator* Clone() const { + return new FakeUuidGenerator(*this); + } + + private: + static uint64_t ctr; +}; + +uint64_t FakeUuidGenerator::ctr = 1000; + +class JsepSessionTest : public JsepSessionTestBase, + public ::testing::WithParamInterface<std::string> { + public: + JsepSessionTest() : mSdpHelper(&mLastError) { + Preferences::SetCString("media.peerconnection.sdp.parser", "legacy"); + Preferences::SetCString("media.peerconnection.sdp.alternate_parse_mode", + "never"); + Preferences::SetBool("media.peerconnection.video.use_rtx", true); + Preferences::SetBool("media.navigator.video.use_transport_cc", true); + + mSessionOff = + MakeUnique<JsepSessionImpl>("Offerer", MakeUnique<FakeUuidGenerator>()); + mSessionAns = MakeUnique<JsepSessionImpl>("Answerer", + MakeUnique<FakeUuidGenerator>()); + + EXPECT_EQ(NS_OK, mSessionOff->Init()); + EXPECT_EQ(NS_OK, mSessionAns->Init()); + + mOffererTransport = MakeUnique<TransportData>(); + mAnswererTransport = MakeUnique<TransportData>(); + + AddTransportData(*mSessionOff, *mOffererTransport); + AddTransportData(*mSessionAns, *mAnswererTransport); + + mOffCandidates = MakeUnique<CandidateSet>(); + mAnsCandidates = MakeUnique<CandidateSet>(); + } + + protected: + struct TransportData { + std::map<std::string, std::vector<uint8_t>> mFingerprints; + }; + + void AddDtlsFingerprint(const std::string& alg, JsepSessionImpl& session, + TransportData& tdata) { + std::vector<uint8_t> fp; + fp.assign((alg == "sha-1") ? 20 : 32, + (session.GetName() == "Offerer") ? 0x4f : 0x41); + session.AddDtlsFingerprint(alg, fp); + tdata.mFingerprints[alg] = fp; + } + + void AddTransportData(JsepSessionImpl& session, TransportData& tdata) { + AddDtlsFingerprint("sha-1", session, tdata); + AddDtlsFingerprint("sha-256", session, tdata); + } + + void CheckTransceiverInvariants( + const std::vector<RefPtr<JsepTransceiver>>& oldTransceivers, + const std::vector<RefPtr<JsepTransceiver>>& newTransceivers) { + ASSERT_LE(oldTransceivers.size(), newTransceivers.size()); + std::set<size_t> levels; + + for (const auto& newTransceiver : newTransceivers) { + if (newTransceiver->HasLevel()) { + ASSERT_FALSE(levels.count(newTransceiver->GetLevel())) + << "Two new transceivers are mapped to level " + << newTransceiver->GetLevel(); + levels.insert(newTransceiver->GetLevel()); + } + } + + auto last = levels.rbegin(); + if (last != levels.rend()) { + ASSERT_LE(*last, levels.size()) + << "Max level observed in transceivers was " << *last + << ", but there are only " << levels.size() + << " levels in the " + "transceivers."; + } + + for (const auto& oldTransceiver : oldTransceivers) { + if (oldTransceiver->HasLevel()) { + ASSERT_TRUE(levels.count(oldTransceiver->GetLevel())) + << "Level " << oldTransceiver->GetLevel() + << " had a transceiver in the old, but not the new (or, " + "perhaps this level had more than one transceiver in the " + "old)"; + levels.erase(oldTransceiver->GetLevel()); + } + } + } + + std::vector<RefPtr<JsepTransceiver>> DeepCopy( + const std::vector<RefPtr<JsepTransceiver>>& transceivers) { + std::vector<RefPtr<JsepTransceiver>> copy; + copy.reserve(transceivers.size()); + for (const auto& transceiver : transceivers) { + copy.push_back(new JsepTransceiver(*transceiver)); + } + return copy; + } + + std::string CreateOffer(const Maybe<JsepOfferOptions>& options = Nothing()) { + std::vector<RefPtr<JsepTransceiver>> transceiversBefore = + DeepCopy(mSessionOff->GetTransceivers()); + JsepOfferOptions defaultOptions; + const JsepOfferOptions& optionsRef = options ? *options : defaultOptions; + std::string offer; + JsepSession::Result result = mSessionOff->CreateOffer(optionsRef, &offer); + EXPECT_FALSE(result.mError.isSome()) << mSessionOff->GetLastError(); + + std::cerr << "OFFER: " << offer << std::endl; + + ValidateTransport(*mOffererTransport, offer, sdp::kOffer); + + if (transceiversBefore.size() != mSessionOff->GetTransceivers().size()) { + EXPECT_TRUE(false) << "CreateOffer changed number of transceivers!"; + return offer; + } + + CheckTransceiverInvariants(transceiversBefore, + mSessionOff->GetTransceivers()); + + for (size_t i = 0; i < transceiversBefore.size(); ++i) { + RefPtr<JsepTransceiver>& oldTransceiver = transceiversBefore[i]; + RefPtr<JsepTransceiver>& newTransceiver = + mSessionOff->GetTransceivers()[i]; + EXPECT_EQ(oldTransceiver->IsStopped(), newTransceiver->IsStopped()); + + if (oldTransceiver->IsStopped()) { + if (!newTransceiver->HasLevel()) { + // Tolerate unmapping of stopped transceivers by removing this + // difference. + oldTransceiver->ClearLevel(); + } + } else if (!oldTransceiver->HasLevel()) { + EXPECT_TRUE(newTransceiver->HasLevel()); + // Tolerate new mappings. + oldTransceiver->SetLevel(newTransceiver->GetLevel()); + } + + EXPECT_TRUE(Equals(*oldTransceiver, *newTransceiver)); + } + + return offer; + } + + typedef enum { NO_ADDTRACK_MAGIC, ADDTRACK_MAGIC } AddTrackMagic; + + void AddTracks(JsepSessionImpl& side, AddTrackMagic magic = ADDTRACK_MAGIC) { + // Add tracks. + if (types.empty()) { + types = BuildTypes(GetParam()); + } + AddTracks(side, types, magic); + + // Now, we move datachannel to the end + auto it = + std::find(types.begin(), types.end(), SdpMediaSection::kApplication); + if (it != types.end()) { + types.erase(it); + types.push_back(SdpMediaSection::kApplication); + } + } + + void AddTracks(JsepSessionImpl& side, const std::string& mediatypes, + AddTrackMagic magic = ADDTRACK_MAGIC) { + AddTracks(side, BuildTypes(mediatypes), magic); + } + + JsepTrack RemoveTrack(JsepSession& side, size_t index) { + if (side.GetTransceivers().size() <= index) { + EXPECT_TRUE(false) << "Index " << index << " out of bounds!"; + return JsepTrack(SdpMediaSection::kAudio, sdp::kSend); + } + + RefPtr<JsepTransceiver>& transceiver(side.GetTransceivers()[index]); + JsepTrack& track = transceiver->mSendTrack; + EXPECT_FALSE(track.GetStreamIds().empty()) << "No track at index " << index; + + JsepTrack original(track); + track.ClearStreamIds(); + transceiver->mJsDirection &= SdpDirectionAttribute::Direction::kRecvonly; + return original; + } + + void SetDirection(JsepSession& side, size_t index, + SdpDirectionAttribute::Direction direction) { + ASSERT_LT(index, side.GetTransceivers().size()) + << "Index " << index << " out of bounds!"; + + side.GetTransceivers()[index]->mJsDirection = direction; + } + + std::vector<SdpMediaSection::MediaType> BuildTypes( + const std::string& mediatypes) { + std::vector<SdpMediaSection::MediaType> result; + size_t ptr = 0; + + for (;;) { + size_t comma = mediatypes.find(',', ptr); + std::string chunk = mediatypes.substr(ptr, comma - ptr); + + if (chunk == "audio") { + result.push_back(SdpMediaSection::kAudio); + } else if (chunk == "video") { + result.push_back(SdpMediaSection::kVideo); + } else if (chunk == "datachannel") { + result.push_back(SdpMediaSection::kApplication); + } else { + MOZ_CRASH(); + } + + if (comma == std::string::npos) break; + ptr = comma + 1; + } + + return result; + } + + void AddTracks(JsepSessionImpl& side, + const std::vector<SdpMediaSection::MediaType>& mediatypes, + AddTrackMagic magic = ADDTRACK_MAGIC) { + std::string stream_id; + std::string track_id; + + ASSERT_TRUE(mUuidGen.Generate(&stream_id)); + + AddTracksToStream(side, stream_id, mediatypes, magic); + } + + void AddTracksToStream(JsepSessionImpl& side, const std::string stream_id, + const std::string& mediatypes, + AddTrackMagic magic = ADDTRACK_MAGIC) { + AddTracksToStream(side, stream_id, BuildTypes(mediatypes), magic); + } + + // A bit of a hack. JsepSessionImpl populates the track-id automatically, just + // in case, because the w3c spec requires msid to be set even when there's no + // send track. + bool IsNull(const JsepTrack& track) const { + return track.GetStreamIds().empty() && + (track.GetMediaType() != SdpMediaSection::MediaType::kApplication); + } + + void AddTracksToStream( + JsepSessionImpl& side, const std::string stream_id, + const std::vector<SdpMediaSection::MediaType>& mediatypes, + AddTrackMagic magic = ADDTRACK_MAGIC) + + { + std::string track_id; + + for (auto type : mediatypes) { + ASSERT_TRUE(mUuidGen.Generate(&track_id)); + + RefPtr<JsepTransceiver> suitableTransceiver; + size_t i; + if (magic == ADDTRACK_MAGIC) { + for (i = 0; i < side.GetTransceivers().size(); ++i) { + auto transceiver = side.GetTransceivers()[i]; + if (transceiver->mSendTrack.GetMediaType() != type) { + continue; + } + + if (IsNull(transceiver->mSendTrack) || + transceiver->GetMediaType() == SdpMediaSection::kApplication) { + suitableTransceiver = transceiver; + break; + } + } + } + + if (!suitableTransceiver) { + i = side.GetTransceivers().size(); + suitableTransceiver = new JsepTransceiver(type, mUuidGen); + side.AddTransceiver(suitableTransceiver); + } + + std::cerr << "Updating send track for transceiver " << i << std::endl; + if (magic == ADDTRACK_MAGIC) { + suitableTransceiver->SetAddTrackMagic(); + } + suitableTransceiver->mJsDirection |= + SdpDirectionAttribute::Direction::kSendonly; + suitableTransceiver->mSendTrack.UpdateStreamIds( + std::vector<std::string>(1, stream_id)); + } + } + + bool HasMediaStream(const std::vector<JsepTrack>& tracks) const { + for (const auto& track : tracks) { + if (track.GetMediaType() != SdpMediaSection::kApplication) { + return true; + } + } + return false; + } + + const std::string GetFirstLocalStreamId(JsepSessionImpl& side) const { + auto tracks = GetLocalTracks(side); + return tracks.begin()->GetStreamIds()[0]; + } + + std::vector<JsepTrack> GetLocalTracks(const JsepSession& session) const { + std::vector<JsepTrack> result; + for (const auto& transceiver : session.GetTransceivers()) { + if (!IsNull(transceiver->mSendTrack)) { + result.push_back(transceiver->mSendTrack); + } + } + return result; + } + + std::vector<JsepTrack> GetRemoteTracks(const JsepSession& session) const { + std::vector<JsepTrack> result; + for (const auto& transceiver : session.GetTransceivers()) { + if (!IsNull(transceiver->mRecvTrack)) { + result.push_back(transceiver->mRecvTrack); + } + } + return result; + } + + JsepTransceiver* GetDatachannelTransceiver(JsepSession& side) { + for (const auto& transceiver : side.GetTransceivers()) { + if (transceiver->mSendTrack.GetMediaType() == + SdpMediaSection::MediaType::kApplication) { + return transceiver.get(); + } + } + + return nullptr; + } + + JsepTransceiver* GetNegotiatedTransceiver(JsepSession& side, size_t index) { + for (const auto& transceiver : side.GetTransceivers()) { + if (transceiver->mSendTrack.GetNegotiatedDetails() || + transceiver->mRecvTrack.GetNegotiatedDetails()) { + if (index) { + --index; + continue; + } + + return transceiver.get(); + } + } + + return nullptr; + } + + JsepTransceiver* GetTransceiverByLevel( + const std::vector<RefPtr<JsepTransceiver>>& transceivers, size_t level) { + for (const auto& transceiver : transceivers) { + if (transceiver->HasLevel() && transceiver->GetLevel() == level) { + return transceiver.get(); + } + } + + return nullptr; + } + + JsepTransceiver* GetTransceiverByLevel(JsepSession& side, size_t level) { + return GetTransceiverByLevel(side.GetTransceivers(), level); + } + + std::vector<std::string> GetMediaStreamIds( + const std::vector<JsepTrack>& tracks) const { + std::vector<std::string> ids; + for (const auto& track : tracks) { + // data channels don't have msid's + if (track.GetMediaType() == SdpMediaSection::kApplication) { + continue; + } + ids.insert(ids.end(), track.GetStreamIds().begin(), + track.GetStreamIds().end()); + } + return ids; + } + + std::vector<std::string> GetLocalMediaStreamIds(JsepSessionImpl& side) const { + return GetMediaStreamIds(GetLocalTracks(side)); + } + + std::vector<std::string> GetRemoteMediaStreamIds( + JsepSessionImpl& side) const { + return GetMediaStreamIds(GetRemoteTracks(side)); + } + + std::vector<std::string> sortUniqueStrVector( + std::vector<std::string> in) const { + std::sort(in.begin(), in.end()); + auto it = std::unique(in.begin(), in.end()); + in.resize(std::distance(in.begin(), it)); + return in; + } + + std::vector<std::string> GetLocalUniqueStreamIds( + JsepSessionImpl& side) const { + return sortUniqueStrVector(GetLocalMediaStreamIds(side)); + } + + std::vector<std::string> GetRemoteUniqueStreamIds( + JsepSessionImpl& side) const { + return sortUniqueStrVector(GetRemoteMediaStreamIds(side)); + } + + JsepTrack GetTrack(JsepSessionImpl& side, SdpMediaSection::MediaType type, + size_t index) const { + for (const auto& transceiver : side.GetTransceivers()) { + if (IsNull(transceiver->mSendTrack) || + transceiver->mSendTrack.GetMediaType() != type) { + continue; + } + + if (index != 0) { + --index; + continue; + } + + return transceiver->mSendTrack; + } + + return JsepTrack(type, sdp::kSend); + } + + JsepTrack GetTrackOff(size_t index, SdpMediaSection::MediaType type) { + return GetTrack(*mSessionOff, type, index); + } + + JsepTrack GetTrackAns(size_t index, SdpMediaSection::MediaType type) { + return GetTrack(*mSessionAns, type, index); + } + + bool Equals(const SdpFingerprintAttributeList::Fingerprint& f1, + const SdpFingerprintAttributeList::Fingerprint& f2) const { + if (f1.hashFunc != f2.hashFunc) { + return false; + } + + if (f1.fingerprint != f2.fingerprint) { + return false; + } + + return true; + } + + bool Equals(const SdpFingerprintAttributeList& f1, + const SdpFingerprintAttributeList& f2) const { + if (f1.mFingerprints.size() != f2.mFingerprints.size()) { + return false; + } + + for (size_t i = 0; i < f1.mFingerprints.size(); ++i) { + if (!Equals(f1.mFingerprints[i], f2.mFingerprints[i])) { + return false; + } + } + + return true; + } + + bool Equals(const UniquePtr<JsepDtlsTransport>& t1, + const UniquePtr<JsepDtlsTransport>& t2) const { + if (!t1 && !t2) { + return true; + } + + if (!t1 || !t2) { + return false; + } + + if (!Equals(t1->GetFingerprints(), t2->GetFingerprints())) { + return false; + } + + if (t1->GetRole() != t2->GetRole()) { + return false; + } + + return true; + } + + bool Equals(const UniquePtr<JsepIceTransport>& t1, + const UniquePtr<JsepIceTransport>& t2) const { + if (!t1 && !t2) { + return true; + } + + if (!t1 || !t2) { + return false; + } + + if (t1->GetUfrag() != t2->GetUfrag()) { + return false; + } + + if (t1->GetPassword() != t2->GetPassword()) { + return false; + } + + return true; + } + + bool Equals(const JsepTransport& t1, const JsepTransport& t2) const { + if (t1.mTransportId != t2.mTransportId) { + std::cerr << "Transport id differs: " << t1.mTransportId << " vs " + << t2.mTransportId << std::endl; + return false; + } + + if (t1.mComponents != t2.mComponents) { + std::cerr << "Component count differs" << std::endl; + return false; + } + + if (!Equals(t1.mIce, t2.mIce)) { + std::cerr << "ICE differs" << std::endl; + return false; + } + + return true; + } + + bool Equals(const JsepTrack& t1, const JsepTrack& t2) const { + if (t1.GetMediaType() != t2.GetMediaType()) { + return false; + } + + if (t1.GetDirection() != t2.GetDirection()) { + return false; + } + + if (t1.GetStreamIds() != t2.GetStreamIds()) { + return false; + } + + if (t1.GetActive() != t2.GetActive()) { + return false; + } + + if (t1.GetCNAME() != t2.GetCNAME()) { + return false; + } + + if (t1.GetSsrcs() != t2.GetSsrcs()) { + return false; + } + + return true; + } + + bool Equals(const JsepTransceiver& p1, const JsepTransceiver& p2) const { + if (p1.HasLevel() != p2.HasLevel()) { + std::cerr << "One transceiver has a level, the other doesn't" + << std::endl; + return false; + } + + if (p1.HasLevel() && (p1.GetLevel() != p2.GetLevel())) { + std::cerr << "Level differs: " << p1.GetLevel() << " vs " << p2.GetLevel() + << std::endl; + return false; + } + + // We don't check things like BundleLevel(), since that can change without + // any changes to the transport, which is what we're really interested in. + + if (p1.IsStopped() != p2.IsStopped()) { + std::cerr << "One transceiver is stopped, the other is not" << std::endl; + return false; + } + + if (p1.IsAssociated() != p2.IsAssociated()) { + std::cerr << "One transceiver has a mid, the other doesn't" << std::endl; + return false; + } + + if (p1.IsAssociated() && (p1.GetMid() != p2.GetMid())) { + std::cerr << "mid differs: " << p1.GetMid() << " vs " << p2.GetMid() + << std::endl; + return false; + } + + if (!Equals(p1.mSendTrack, p2.mSendTrack)) { + std::cerr << "Send track differs" << std::endl; + return false; + } + + if (!Equals(p1.mRecvTrack, p2.mRecvTrack)) { + std::cerr << "Receive track differs" << std::endl; + return false; + } + + if (!Equals(p1.mTransport, p2.mTransport)) { + std::cerr << "Transport differs" << std::endl; + return false; + } + + return true; + } + + bool Equals(const std::vector<RefPtr<JsepTransceiver>>& t1, + const std::vector<RefPtr<JsepTransceiver>>& t2) const { + if (t1.size() != t2.size()) { + std::cerr << "Size differs: t1.size = " << t1.size() + << ", t2.size = " << t2.size() << std::endl; + return false; + } + + for (size_t i = 0; i < t1.size(); ++i) { + if (!Equals(*t1[i], *t2[i])) { + return false; + } + } + + return true; + } + + size_t GetTrackCount(JsepSessionImpl& side, + SdpMediaSection::MediaType type) const { + size_t result = 0; + for (const auto& track : GetLocalTracks(side)) { + if (track.GetMediaType() == type) { + ++result; + } + } + return result; + } + + UniquePtr<Sdp> GetParsedLocalDescription(const JsepSessionImpl& side) const { + return Parse(side.GetLocalDescription(kJsepDescriptionCurrent)); + } + + SdpMediaSection* GetMsection(Sdp& sdp, SdpMediaSection::MediaType type, + size_t index) const { + for (size_t i = 0; i < sdp.GetMediaSectionCount(); ++i) { + auto& msection = sdp.GetMediaSection(i); + if (msection.GetMediaType() != type) { + continue; + } + + if (index) { + --index; + continue; + } + + return &msection; + } + + return nullptr; + } + + void SetPayloadTypeNumber(JsepSession& session, const std::string& codecName, + const std::string& payloadType) { + for (auto& codec : session.Codecs()) { + if (codec->mName == codecName) { + codec->mDefaultPt = payloadType; + } + } + } + + void SetCodecEnabled(JsepSession& session, const std::string& codecName, + bool enabled) { + for (auto& codec : session.Codecs()) { + if (codec->mName == codecName) { + codec->mEnabled = enabled; + } + } + } + + void EnsureNegotiationFailure(SdpMediaSection::MediaType type, + const std::string& codecName) { + for (auto& codec : mSessionOff->Codecs()) { + if (codec->Type() == type && codec->mName != codecName) { + codec->mEnabled = false; + } + } + + for (auto& codec : mSessionAns->Codecs()) { + if (codec->Type() == type && codec->mName == codecName) { + codec->mEnabled = false; + } + } + } + + std::string CreateAnswer() { + std::vector<RefPtr<JsepTransceiver>> transceiversBefore = + DeepCopy(mSessionAns->GetTransceivers()); + + JsepAnswerOptions options; + std::string answer; + + JsepSession::Result result = mSessionAns->CreateAnswer(options, &answer); + EXPECT_FALSE(result.mError.isSome()); + + std::cerr << "ANSWER: " << answer << std::endl; + + ValidateTransport(*mAnswererTransport, answer, sdp::kAnswer); + CheckTransceiverInvariants(transceiversBefore, + mSessionAns->GetTransceivers()); + + return answer; + } + + static const uint32_t NO_CHECKS = 0; + static const uint32_t CHECK_SUCCESS = 1; + static const uint32_t CHECK_TRACKS = 1 << 2; + static const uint32_t ALL_CHECKS = CHECK_SUCCESS | CHECK_TRACKS; + + void OfferAnswer(uint32_t checkFlags = ALL_CHECKS, + const Maybe<JsepOfferOptions>& options = Nothing()) { + std::string offer = CreateOffer(options); + SetLocalOffer(offer, checkFlags); + SetRemoteOffer(offer, checkFlags); + + std::string answer = CreateAnswer(); + SetLocalAnswer(answer, checkFlags); + SetRemoteAnswer(answer, checkFlags); + } + + void SetLocalOffer(const std::string& offer, + uint32_t checkFlags = ALL_CHECKS) { + std::vector<RefPtr<JsepTransceiver>> transceiversBefore = + DeepCopy(mSessionOff->GetTransceivers()); + + JsepSession::Result result = + mSessionOff->SetLocalDescription(kJsepSdpOffer, offer); + + CheckTransceiverInvariants(transceiversBefore, + mSessionOff->GetTransceivers()); + + if (checkFlags & CHECK_SUCCESS) { + ASSERT_FALSE(result.mError.isSome()); + } + + if (checkFlags & CHECK_TRACKS) { + // This assumes no recvonly or inactive transceivers. + ASSERT_EQ(types.size(), mSessionOff->GetTransceivers().size()); + for (const auto& transceiver : mSessionOff->GetTransceivers()) { + if (!transceiver->HasLevel()) { + continue; + } + const auto& track(transceiver->mSendTrack); + size_t level = transceiver->GetLevel(); + ASSERT_FALSE(IsNull(track)); + ASSERT_EQ(types[level], track.GetMediaType()); + if (track.GetMediaType() != SdpMediaSection::kApplication) { + std::string msidAttr("a=msid:"); + msidAttr += track.GetStreamIds()[0]; + ASSERT_NE(std::string::npos, offer.find(msidAttr)) + << "Did not find " << msidAttr << " in offer"; + } + } + if (types.size() == 1 && types[0] == SdpMediaSection::kApplication) { + ASSERT_EQ(std::string::npos, offer.find("a=ssrc")) + << "Data channel should not contain SSRC"; + } + } + } + + void SetRemoteOffer(const std::string& offer, + uint32_t checkFlags = ALL_CHECKS) { + std::vector<RefPtr<JsepTransceiver>> transceiversBefore = + DeepCopy(mSessionAns->GetTransceivers()); + + JsepSession::Result result = + mSessionAns->SetRemoteDescription(kJsepSdpOffer, offer); + + CheckTransceiverInvariants(transceiversBefore, + mSessionAns->GetTransceivers()); + + if (checkFlags & CHECK_SUCCESS) { + ASSERT_FALSE(result.mError.isSome()); + } + + if (checkFlags & CHECK_TRACKS) { + // This assumes no recvonly or inactive transceivers. + ASSERT_EQ(types.size(), mSessionAns->GetTransceivers().size()); + for (const auto& transceiver : mSessionAns->GetTransceivers()) { + if (!transceiver->HasLevel()) { + continue; + } + const auto& track(transceiver->mRecvTrack); + size_t level = transceiver->GetLevel(); + ASSERT_FALSE(IsNull(track)); + ASSERT_EQ(types[level], track.GetMediaType()); + if (track.GetMediaType() != SdpMediaSection::kApplication) { + std::string msidAttr("a=msid:"); + msidAttr += track.GetStreamIds()[0]; + // Track id will not match, and will eventually not be present at all + ASSERT_NE(std::string::npos, offer.find(msidAttr)) + << "Did not find " << msidAttr << " in offer"; + } + } + } + } + + void SetLocalAnswer(const std::string& answer, + uint32_t checkFlags = ALL_CHECKS) { + std::vector<RefPtr<JsepTransceiver>> transceiversBefore = + DeepCopy(mSessionAns->GetTransceivers()); + + JsepSession::Result result = + mSessionAns->SetLocalDescription(kJsepSdpAnswer, answer); + if (checkFlags & CHECK_SUCCESS) { + ASSERT_FALSE(result.mError.isSome()); + } + + CheckTransceiverInvariants(transceiversBefore, + mSessionAns->GetTransceivers()); + + if (checkFlags & CHECK_TRACKS) { + // Verify that the right stuff is in the tracks. + ASSERT_EQ(types.size(), mSessionAns->GetTransceivers().size()); + for (const auto& transceiver : mSessionAns->GetTransceivers()) { + if (!transceiver->HasLevel()) { + continue; + } + const auto& sendTrack(transceiver->mSendTrack); + const auto& recvTrack(transceiver->mRecvTrack); + size_t level = transceiver->GetLevel(); + ASSERT_FALSE(IsNull(sendTrack)); + ASSERT_EQ(types[level], sendTrack.GetMediaType()); + // These might have been in the SDP, or might have been randomly + // chosen by JsepSessionImpl + ASSERT_FALSE(IsNull(recvTrack)); + ASSERT_EQ(types[level], recvTrack.GetMediaType()); + + if (recvTrack.GetMediaType() != SdpMediaSection::kApplication) { + std::string msidAttr("a=msid:"); + msidAttr += sendTrack.GetStreamIds()[0]; + ASSERT_NE(std::string::npos, answer.find(msidAttr)) + << "Did not find " << msidAttr << " in answer"; + } + } + if (types.size() == 1 && types[0] == SdpMediaSection::kApplication) { + ASSERT_EQ(std::string::npos, answer.find("a=ssrc")) + << "Data channel should not contain SSRC"; + } + } + std::cerr << "Answerer transceivers:" << std::endl; + DumpTransceivers(*mSessionAns); + } + + void SetRemoteAnswer(const std::string& answer, + uint32_t checkFlags = ALL_CHECKS) { + std::vector<RefPtr<JsepTransceiver>> transceiversBefore = + DeepCopy(mSessionOff->GetTransceivers()); + + JsepSession::Result result = + mSessionOff->SetRemoteDescription(kJsepSdpAnswer, answer); + if (checkFlags & CHECK_SUCCESS) { + ASSERT_FALSE(result.mError.isSome()); + } + + CheckTransceiverInvariants(transceiversBefore, + mSessionOff->GetTransceivers()); + + if (checkFlags & CHECK_TRACKS) { + // Verify that the right stuff is in the tracks. + ASSERT_EQ(types.size(), mSessionOff->GetTransceivers().size()); + for (const auto& transceiver : mSessionOff->GetTransceivers()) { + if (!transceiver->HasLevel()) { + continue; + } + const auto& sendTrack(transceiver->mSendTrack); + const auto& recvTrack(transceiver->mRecvTrack); + size_t level = transceiver->GetLevel(); + ASSERT_FALSE(IsNull(sendTrack)); + ASSERT_EQ(types[level], sendTrack.GetMediaType()); + // These might have been in the SDP, or might have been randomly + // chosen by JsepSessionImpl + ASSERT_FALSE(IsNull(recvTrack)); + ASSERT_EQ(types[level], recvTrack.GetMediaType()); + + if (recvTrack.GetMediaType() != SdpMediaSection::kApplication) { + std::string msidAttr("a=msid:"); + msidAttr += recvTrack.GetStreamIds()[0]; + // Track id will not match, and will eventually not be present at all + ASSERT_NE(std::string::npos, answer.find(msidAttr)) + << "Did not find " << msidAttr << " in answer"; + } + } + } + std::cerr << "Offerer transceivers:" << std::endl; + DumpTransceivers(*mSessionOff); + } + + std::string GetTransportId(const JsepSession& session, size_t level) { + for (const auto& transceiver : session.GetTransceivers()) { + if (transceiver->HasLevel() && transceiver->GetLevel() == level) { + return transceiver->mTransport.mTransportId; + } + } + return std::string(); + } + + typedef enum { RTP = 1, RTCP = 2 } ComponentType; + + class CandidateSet { + public: + CandidateSet() {} + + void Gather(JsepSession& session, ComponentType maxComponent = RTCP) { + for (const auto& transceiver : session.GetTransceivers()) { + if (transceiver->HasOwnTransport()) { + Gather(session, transceiver->mTransport.mTransportId, RTP); + if (transceiver->mTransport.mComponents > 1) { + Gather(session, transceiver->mTransport.mTransportId, RTCP); + } + } + } + FinishGathering(session); + } + + void Gather(JsepSession& session, const std::string& transportId, + ComponentType component) { + static uint16_t port = 1000; + std::vector<std::string> candidates; + + for (size_t i = 0; i < kNumCandidatesPerComponent; ++i) { + ++port; + std::ostringstream candidate; + candidate << "0 " << static_cast<uint16_t>(component) + << " UDP 9999 192.168.0.1 " << port << " typ host"; + std::string mid; + uint16_t level = 0; + bool skipped; + session.AddLocalIceCandidate(kAEqualsCandidate + candidate.str(), + transportId, "", &level, &mid, &skipped); + if (!skipped) { + mCandidatesToTrickle.push_back(Tuple<Level, Mid, Candidate>( + level, mid, kAEqualsCandidate + candidate.str())); + candidates.push_back(candidate.str()); + } + } + + // Stomp existing candidates + mCandidates[transportId][component] = candidates; + + // Stomp existing defaults + mDefaultCandidates[transportId][component] = + std::make_pair("192.168.0.1", port); + session.UpdateDefaultCandidate( + mDefaultCandidates[transportId][RTP].first, + mDefaultCandidates[transportId][RTP].second, + // Will be empty string if not present, which is how we indicate + // that there is no default for RTCP + mDefaultCandidates[transportId][RTCP].first, + mDefaultCandidates[transportId][RTCP].second, transportId); + } + + void FinishGathering(JsepSession& session) const { + // Copy so we can be terse and use [] + for (auto idAndCandidates : mDefaultCandidates) { + ASSERT_EQ(1U, idAndCandidates.second.count(RTP)); + // do a final UpdateDefaultCandidate here in case candidates were + // cleared during renegotiation. + session.UpdateDefaultCandidate( + idAndCandidates.second[RTP].first, + idAndCandidates.second[RTP].second, + // Will be empty string if not present, which is how we indicate + // that there is no default for RTCP + idAndCandidates.second[RTCP].first, + idAndCandidates.second[RTCP].second, idAndCandidates.first); + std::string mid; + uint16_t level = 0; + bool skipped; + session.AddLocalIceCandidate("", idAndCandidates.first, "", &level, + &mid, &skipped); + } + } + + void Trickle(JsepSession& session) { + std::string transportId; + for (const auto& levelMidAndCandidate : mCandidatesToTrickle) { + Level level; + Mid mid; + Candidate candidate; + Tie(level, mid, candidate) = levelMidAndCandidate; + std::cerr << "trickling candidate: " << candidate << " level: " << level + << " mid: " << mid << std::endl; + Maybe<unsigned long> lev = Some(level); + session.AddRemoteIceCandidate(candidate, mid, lev, "", &transportId); + } + session.AddRemoteIceCandidate("", "", Maybe<uint16_t>(), "", + &transportId); + mCandidatesToTrickle.clear(); + } + + void CheckRtpCandidates(bool expectRtpCandidates, + const SdpMediaSection& msection, + const std::string& transportId, + const std::string& context) const { + auto& attrs = msection.GetAttributeList(); + + ASSERT_EQ(expectRtpCandidates, + attrs.HasAttribute(SdpAttribute::kCandidateAttribute)) + << context << " (level " << msection.GetLevel() << ")"; + + if (expectRtpCandidates) { + // Copy so we can be terse and use [] + auto expectedCandidates = mCandidates; + ASSERT_LE(kNumCandidatesPerComponent, + expectedCandidates[transportId][RTP].size()); + + auto& candidates = attrs.GetCandidate(); + ASSERT_LE(kNumCandidatesPerComponent, candidates.size()) + << context << " (level " << msection.GetLevel() << ")"; + for (size_t i = 0; i < kNumCandidatesPerComponent; ++i) { + ASSERT_EQ(expectedCandidates[transportId][RTP][i], candidates[i]) + << context << " (level " << msection.GetLevel() << ")"; + } + } + } + + void CheckRtcpCandidates(bool expectRtcpCandidates, + const SdpMediaSection& msection, + const std::string& transportId, + const std::string& context) const { + auto& attrs = msection.GetAttributeList(); + + if (expectRtcpCandidates) { + // Copy so we can be terse and use [] + auto expectedCandidates = mCandidates; + ASSERT_LE(kNumCandidatesPerComponent, + expectedCandidates[transportId][RTCP].size()); + + ASSERT_TRUE(attrs.HasAttribute(SdpAttribute::kCandidateAttribute)) + << context << " (level " << msection.GetLevel() << ")"; + auto& candidates = attrs.GetCandidate(); + ASSERT_EQ(kNumCandidatesPerComponent * 2, candidates.size()) + << context << " (level " << msection.GetLevel() << ")"; + for (size_t i = 0; i < kNumCandidatesPerComponent; ++i) { + ASSERT_EQ(expectedCandidates[transportId][RTCP][i], + candidates[i + kNumCandidatesPerComponent]) + << context << " (level " << msection.GetLevel() << ")"; + } + } + } + + void CheckDefaultRtpCandidate(bool expectDefault, + const SdpMediaSection& msection, + const std::string& transportId, + const std::string& context) const { + Address expectedAddress = "0.0.0.0"; + Port expectedPort = 9U; + + if (expectDefault) { + // Copy so we can be terse and use [] + auto defaultCandidates = mDefaultCandidates; + expectedAddress = defaultCandidates[transportId][RTP].first; + expectedPort = defaultCandidates[transportId][RTP].second; + } + + // if bundle-only attribute is present, expect port 0 + const SdpAttributeList& attrs = msection.GetAttributeList(); + if (attrs.HasAttribute(SdpAttribute::kBundleOnlyAttribute)) { + expectedPort = 0U; + } + + ASSERT_EQ(expectedAddress, msection.GetConnection().GetAddress()) + << context << " (level " << msection.GetLevel() << ")"; + ASSERT_EQ(expectedPort, msection.GetPort()) + << context << " (level " << msection.GetLevel() << ")"; + } + + void CheckDefaultRtcpCandidate(bool expectDefault, + const SdpMediaSection& msection, + const std::string& transportId, + const std::string& context) const { + if (expectDefault) { + // Copy so we can be terse and use [] + auto defaultCandidates = mDefaultCandidates; + ASSERT_TRUE(msection.GetAttributeList().HasAttribute( + SdpAttribute::kRtcpAttribute)) + << context << " (level " << msection.GetLevel() << ")"; + auto& rtcpAttr = msection.GetAttributeList().GetRtcp(); + ASSERT_EQ(defaultCandidates[transportId][RTCP].second, rtcpAttr.mPort) + << context << " (level " << msection.GetLevel() << ")"; + ASSERT_EQ(sdp::kInternet, rtcpAttr.mNetType) + << context << " (level " << msection.GetLevel() << ")"; + ASSERT_EQ(sdp::kIPv4, rtcpAttr.mAddrType) + << context << " (level " << msection.GetLevel() << ")"; + ASSERT_EQ(defaultCandidates[transportId][RTCP].first, rtcpAttr.mAddress) + << context << " (level " << msection.GetLevel() << ")"; + } else { + ASSERT_FALSE(msection.GetAttributeList().HasAttribute( + SdpAttribute::kRtcpAttribute)) + << context << " (level " << msection.GetLevel() << ")"; + } + } + + private: + typedef size_t Level; + typedef std::string TransportId; + typedef std::string Mid; + typedef std::string Candidate; + typedef std::string Address; + typedef uint16_t Port; + // Default candidates are put into the m-line, c-line, and rtcp + // attribute for endpoints that don't support ICE. + std::map<TransportId, std::map<ComponentType, std::pair<Address, Port>>> + mDefaultCandidates; + std::map<TransportId, std::map<ComponentType, std::vector<Candidate>>> + mCandidates; + // Level/mid/candidate tuples that need to be trickled + std::vector<Tuple<Level, Mid, Candidate>> mCandidatesToTrickle; + }; + + // For streaming parse errors + std::string GetParseErrors( + const UniquePtr<SdpParser::Results>& results) const { + std::stringstream output; + auto errors = std::move(results->Errors()); + for (auto error : errors) { + output << error.first << ": " << error.second << std::endl; + } + return output.str(); + } + + void CheckEndOfCandidates(bool expectEoc, const SdpMediaSection& msection, + const std::string& context) { + if (expectEoc) { + ASSERT_TRUE(msection.GetAttributeList().HasAttribute( + SdpAttribute::kEndOfCandidatesAttribute)) + << context << " (level " << msection.GetLevel() << ")"; + } else { + ASSERT_FALSE(msection.GetAttributeList().HasAttribute( + SdpAttribute::kEndOfCandidatesAttribute)) + << context << " (level " << msection.GetLevel() << ")"; + } + } + + void CheckTransceiversAreBundled(const JsepSession& session, + const std::string& context) { + for (const auto& transceiver : session.GetTransceivers()) { + ASSERT_TRUE(transceiver->HasBundleLevel()) + << context; + ASSERT_EQ(0U, transceiver->BundleLevel()) << context; + ASSERT_NE("", transceiver->mTransport.mTransportId); + } + } + + void DisableMsid(std::string* sdp) const { + while (true) { + size_t pos = sdp->find("a=msid"); + if (pos == std::string::npos) { + break; + } + (*sdp)[pos + 2] = 'X'; // garble, a=Xsid + } + } + + void DisableBundle(std::string* sdp) const { + size_t pos = sdp->find("a=group:BUNDLE"); + ASSERT_NE(std::string::npos, pos); + (*sdp)[pos + 11] = 'G'; // garble, a=group:BUNGLE + } + + void DisableMsection(std::string* sdp, size_t level) const { + UniquePtr<Sdp> parsed(Parse(*sdp)); + ASSERT_TRUE(parsed.get()); + ASSERT_LT(level, parsed->GetMediaSectionCount()); + SdpHelper::DisableMsection(parsed.get(), &parsed->GetMediaSection(level)); + (*sdp) = parsed->ToString(); + } + + void CopyTransportAttributes(std::string* sdp, size_t src_level, + size_t dst_level) { + UniquePtr<Sdp> parsed(Parse(*sdp)); + ASSERT_TRUE(parsed.get()); + ASSERT_LT(src_level, parsed->GetMediaSectionCount()); + ASSERT_LT(dst_level, parsed->GetMediaSectionCount()); + nsresult rv = + mSdpHelper.CopyTransportParams(2, parsed->GetMediaSection(src_level), + &parsed->GetMediaSection(dst_level)); + ASSERT_EQ(NS_OK, rv); + (*sdp) = parsed->ToString(); + } + + void ReplaceInSdp(std::string* sdp, const char* searchStr, + const char* replaceStr) const { + if (searchStr[0] == '\0') return; + size_t pos = 0; + while ((pos = sdp->find(searchStr, pos)) != std::string::npos) { + sdp->replace(pos, strlen(searchStr), replaceStr); + pos += strlen(replaceStr); + } + } + + void ValidateDisabledMSection(const SdpMediaSection* msection) { + ASSERT_EQ(1U, msection->GetFormats().size()); + + auto& attrs = msection->GetAttributeList(); + ASSERT_TRUE(attrs.HasAttribute(SdpAttribute::kMidAttribute)); + ASSERT_TRUE(attrs.HasAttribute(SdpAttribute::kDirectionAttribute)); + ASSERT_FALSE(attrs.HasAttribute(SdpAttribute::kBundleOnlyAttribute)); + ASSERT_EQ(SdpDirectionAttribute::kInactive, + msection->GetDirectionAttribute().mValue); + ASSERT_EQ(3U, attrs.Count()); + if (msection->GetMediaType() == SdpMediaSection::kAudio) { + ASSERT_EQ("0", msection->GetFormats()[0]); + const SdpRtpmapAttributeList::Rtpmap* rtpmap(msection->FindRtpmap("0")); + ASSERT_TRUE(rtpmap); + ASSERT_EQ("0", rtpmap->pt); + ASSERT_EQ("PCMU", rtpmap->name); + } else if (msection->GetMediaType() == SdpMediaSection::kVideo) { + ASSERT_EQ("120", msection->GetFormats()[0]); + const SdpRtpmapAttributeList::Rtpmap* rtpmap(msection->FindRtpmap("120")); + ASSERT_TRUE(rtpmap); + ASSERT_EQ("120", rtpmap->pt); + ASSERT_EQ("VP8", rtpmap->name); + } else if (msection->GetMediaType() == SdpMediaSection::kApplication) { + if (msection->GetProtocol() == SdpMediaSection::kUdpDtlsSctp || + msection->GetProtocol() == SdpMediaSection::kTcpDtlsSctp) { + // draft 21 format + ASSERT_EQ("webrtc-datachannel", msection->GetFormats()[0]); + ASSERT_FALSE(msection->GetSctpmap()); + ASSERT_EQ(0U, msection->GetSctpPort()); + } else { + // old draft 05 format + ASSERT_EQ("0", msection->GetFormats()[0]); + const SdpSctpmapAttributeList::Sctpmap* sctpmap(msection->GetSctpmap()); + ASSERT_TRUE(sctpmap); + ASSERT_EQ("0", sctpmap->pt); + ASSERT_EQ("rejected", sctpmap->name); + ASSERT_EQ(0U, sctpmap->streams); + } + } else { + // Not that we would have any test which tests this... + ASSERT_EQ("19", msection->GetFormats()[0]); + const SdpRtpmapAttributeList::Rtpmap* rtpmap(msection->FindRtpmap("19")); + ASSERT_TRUE(rtpmap); + ASSERT_EQ("19", rtpmap->pt); + ASSERT_EQ("reserved", rtpmap->name); + } + + ASSERT_FALSE(msection->GetAttributeList().HasAttribute( + SdpAttribute::kMsidAttribute)); + } + + void ValidateSetupAttribute(const JsepSessionImpl& side, + const SdpSetupAttribute::Role expectedRole) { + auto sdp = GetParsedLocalDescription(side); + for (size_t i = 0; sdp && i < sdp->GetMediaSectionCount(); ++i) { + if (sdp->GetMediaSection(i).GetAttributeList().HasAttribute( + SdpAttribute::kSetupAttribute)) { + auto role = sdp->GetMediaSection(i).GetAttributeList().GetSetup().mRole; + ASSERT_EQ(expectedRole, role); + } + } + } + + void DumpTrack(const JsepTrack& track) { + const JsepTrackNegotiatedDetails* details = track.GetNegotiatedDetails(); + std::cerr << " type=" << track.GetMediaType() << std::endl; + if (!details) { + std::cerr << " not negotiated" << std::endl; + return; + } + std::cerr << " encodings=" << std::endl; + for (size_t i = 0; i < details->GetEncodingCount(); ++i) { + const JsepTrackEncoding& encoding = details->GetEncoding(i); + std::cerr << " id=" << encoding.mRid << std::endl; + for (const auto& codec : encoding.GetCodecs()) { + std::cerr << " " << codec->mName << " enabled(" + << (codec->mEnabled ? "yes" : "no") << ")"; + if (track.GetMediaType() == SdpMediaSection::kAudio) { + const JsepAudioCodecDescription* audioCodec = + static_cast<const JsepAudioCodecDescription*>(codec.get()); + std::cerr << " dtmf(" << (audioCodec->mDtmfEnabled ? "yes" : "no") + << ")"; + } + if (track.GetMediaType() == SdpMediaSection::kVideo) { + const JsepVideoCodecDescription* videoCodec = + static_cast<const JsepVideoCodecDescription*>(codec.get()); + std::cerr << " rtx(" + << (videoCodec->mRtxEnabled ? videoCodec->mRtxPayloadType + : "no") + << ")"; + } + std::cerr << std::endl; + } + } + } + + void DumpTransport(const JsepTransport& transport) { + std::cerr << " id=" << transport.mTransportId << std::endl; + std::cerr << " components=" << transport.mComponents << std::endl; + } + + void DumpTransceivers(const JsepSessionImpl& session) { + for (const auto& transceiver : session.GetTransceivers()) { + std::cerr << "Transceiver "; + if (transceiver->HasLevel()) { + std::cerr << transceiver->GetLevel() << std::endl; + } else { + std::cerr << "<NO LEVEL>" << std::endl; + } + if (transceiver->HasBundleLevel()) { + std::cerr << "(bundle level is " << transceiver->BundleLevel() << ")" + << std::endl; + } + if (!IsNull(transceiver->mSendTrack)) { + std::cerr << "Sending-->" << std::endl; + DumpTrack(transceiver->mSendTrack); + } + if (!IsNull(transceiver->mRecvTrack)) { + std::cerr << "Receiving-->" << std::endl; + DumpTrack(transceiver->mRecvTrack); + } + std::cerr << "Transport-->" << std::endl; + DumpTransport(transceiver->mTransport); + } + } + + UniquePtr<Sdp> Parse(const std::string& sdp) const { + SipccSdpParser parser; + auto results = parser.Parse(sdp); + UniquePtr<Sdp> parsed = std::move(results->Sdp()); + EXPECT_TRUE(parsed.get()) << "Should have valid SDP" << std::endl + << "Errors were: " << GetParseErrors(results); + return parsed; + } + + std::string SetExtmap(const std::string& aSdp, const std::string& aUri, + uint16_t aId, uint16_t* aOldId = nullptr) { + UniquePtr<Sdp> munge(Parse(aSdp)); + for (size_t i = 0; i < munge->GetMediaSectionCount(); ++i) { + auto& attrs = munge->GetMediaSection(i).GetAttributeList(); + if (attrs.HasAttribute(SdpAttribute::kExtmapAttribute)) { + auto extmap = attrs.GetExtmap(); + for (auto it = extmap.mExtmaps.begin(); it != extmap.mExtmaps.end(); + ++it) { + if (it->extensionname == aUri) { + if (aOldId) { + *aOldId = it->entry; + } + + if (aId) { + it->entry = aId; + } else { + extmap.mExtmaps.erase(it); + } + break; + } + } + attrs.SetAttribute(extmap.Clone()); + } + } + return munge->ToString(); + } + + uint16_t GetExtmap(const std::string& aSdp, const std::string& aUri) { + UniquePtr<Sdp> parsed(Parse(aSdp)); + for (size_t i = 0; i < parsed->GetMediaSectionCount(); ++i) { + auto& attrs = parsed->GetMediaSection(i).GetAttributeList(); + if (attrs.HasAttribute(SdpAttribute::kExtmapAttribute)) { + auto extmap = attrs.GetExtmap(); + for (auto& ext : extmap.mExtmaps) { + if (ext.extensionname == aUri) { + return ext.entry; + } + } + } + } + return 0; + } + + void SwapOfferAnswerRoles() { + mSessionOff.swap(mSessionAns); + mOffCandidates.swap(mAnsCandidates); + mOffererTransport.swap(mAnswererTransport); + } + + UniquePtr<JsepSessionImpl> mSessionOff; + UniquePtr<CandidateSet> mOffCandidates; + UniquePtr<JsepSessionImpl> mSessionAns; + UniquePtr<CandidateSet> mAnsCandidates; + + std::vector<SdpMediaSection::MediaType> types; + std::vector<std::pair<std::string, uint16_t>> mGatheredCandidates; + + FakeUuidGenerator mUuidGen; + + private: + void ValidateTransport(TransportData& source, const std::string& sdp_str, + sdp::SdpType type) { + UniquePtr<Sdp> sdp(Parse(sdp_str)); + ASSERT_TRUE(!!sdp); + size_t num_m_sections = sdp->GetMediaSectionCount(); + for (size_t i = 0; i < num_m_sections; ++i) { + auto& msection = sdp->GetMediaSection(i); + + if (msection.GetMediaType() == SdpMediaSection::kApplication) { + if (!(msection.GetProtocol() == SdpMediaSection::kUdpDtlsSctp || + msection.GetProtocol() == SdpMediaSection::kTcpDtlsSctp)) { + // old draft 05 format + ASSERT_EQ(SdpMediaSection::kDtlsSctp, msection.GetProtocol()); + } + } else { + ASSERT_EQ(SdpMediaSection::kUdpTlsRtpSavpf, msection.GetProtocol()); + } + + const SdpAttributeList& attrs = msection.GetAttributeList(); + bool bundle_only = attrs.HasAttribute(SdpAttribute::kBundleOnlyAttribute); + + // port 0 only means disabled when the bundle-only attribute is missing + if (!bundle_only && msection.GetPort() == 0) { + ValidateDisabledMSection(&msection); + continue; + } + if (mSdpHelper.OwnsTransport(*sdp, i, type)) { + const SdpAttributeList& attrs = msection.GetAttributeList(); + + ASSERT_FALSE(attrs.GetIceUfrag().empty()); + ASSERT_FALSE(attrs.GetIcePwd().empty()); + const SdpFingerprintAttributeList& fps = attrs.GetFingerprint(); + for (auto fp = fps.mFingerprints.begin(); fp != fps.mFingerprints.end(); + ++fp) { + std::string alg_str = "None"; + + if (fp->hashFunc == SdpFingerprintAttributeList::kSha1) { + alg_str = "sha-1"; + } else if (fp->hashFunc == SdpFingerprintAttributeList::kSha256) { + alg_str = "sha-256"; + } + ASSERT_EQ(source.mFingerprints[alg_str], fp->fingerprint); + } + + ASSERT_EQ(source.mFingerprints.size(), fps.mFingerprints.size()); + } + } + } + + std::string mLastError; + SdpHelper mSdpHelper; + + UniquePtr<TransportData> mOffererTransport; + UniquePtr<TransportData> mAnswererTransport; +}; + +TEST_F(JsepSessionTestBase, CreateDestroy) {} + +TEST_P(JsepSessionTest, CreateOffer) { + AddTracks(*mSessionOff); + CreateOffer(); +} + +TEST_P(JsepSessionTest, CreateOfferSetLocal) { + AddTracks(*mSessionOff); + std::string offer = CreateOffer(); + SetLocalOffer(offer); +} + +TEST_P(JsepSessionTest, CreateOfferSetLocalSetRemote) { + AddTracks(*mSessionOff); + std::string offer = CreateOffer(); + SetLocalOffer(offer); + SetRemoteOffer(offer); +} + +TEST_P(JsepSessionTest, CreateOfferSetLocalSetRemoteCreateAnswer) { + AddTracks(*mSessionOff); + std::string offer = CreateOffer(); + SetLocalOffer(offer); + SetRemoteOffer(offer); + AddTracks(*mSessionAns); + std::string answer = CreateAnswer(); +} + +TEST_P(JsepSessionTest, CreateOfferSetLocalSetRemoteCreateAnswerSetLocal) { + AddTracks(*mSessionOff); + std::string offer = CreateOffer(); + SetLocalOffer(offer); + SetRemoteOffer(offer); + AddTracks(*mSessionAns); + std::string answer = CreateAnswer(); + SetLocalAnswer(answer); +} + +TEST_P(JsepSessionTest, FullCall) { + AddTracks(*mSessionOff); + std::string offer = CreateOffer(); + SetLocalOffer(offer); + SetRemoteOffer(offer); + AddTracks(*mSessionAns); + std::string answer = CreateAnswer(); + SetLocalAnswer(answer); + SetRemoteAnswer(answer); +} + +TEST_P(JsepSessionTest, GetDescriptions) { + AddTracks(*mSessionOff); + std::string offer = CreateOffer(); + SetLocalOffer(offer); + std::string desc = mSessionOff->GetLocalDescription(kJsepDescriptionCurrent); + ASSERT_EQ(0U, desc.size()); + desc = mSessionOff->GetLocalDescription(kJsepDescriptionPending); + ASSERT_NE(0U, desc.size()); + desc = mSessionOff->GetLocalDescription(kJsepDescriptionPendingOrCurrent); + ASSERT_NE(0U, desc.size()); + desc = mSessionOff->GetRemoteDescription(kJsepDescriptionPendingOrCurrent); + ASSERT_EQ(0U, desc.size()); + desc = mSessionAns->GetLocalDescription(kJsepDescriptionPendingOrCurrent); + ASSERT_EQ(0U, desc.size()); + desc = mSessionAns->GetRemoteDescription(kJsepDescriptionPendingOrCurrent); + ASSERT_EQ(0U, desc.size()); + + SetRemoteOffer(offer); + desc = mSessionAns->GetRemoteDescription(kJsepDescriptionCurrent); + ASSERT_EQ(0U, desc.size()); + desc = mSessionAns->GetRemoteDescription(kJsepDescriptionPending); + ASSERT_NE(0U, desc.size()); + desc = mSessionAns->GetRemoteDescription(kJsepDescriptionPendingOrCurrent); + ASSERT_NE(0U, desc.size()); + desc = mSessionAns->GetLocalDescription(kJsepDescriptionPendingOrCurrent); + ASSERT_EQ(0U, desc.size()); + desc = mSessionOff->GetLocalDescription(kJsepDescriptionPendingOrCurrent); + ASSERT_NE(0U, desc.size()); + desc = mSessionOff->GetRemoteDescription(kJsepDescriptionPendingOrCurrent); + ASSERT_EQ(0U, desc.size()); + + AddTracks(*mSessionAns); + std::string answer = CreateAnswer(); + SetLocalAnswer(answer); + desc = mSessionAns->GetLocalDescription(kJsepDescriptionCurrent); + ASSERT_NE(0U, desc.size()); + desc = mSessionAns->GetLocalDescription(kJsepDescriptionPending); + ASSERT_EQ(0U, desc.size()); + desc = mSessionAns->GetLocalDescription(kJsepDescriptionPendingOrCurrent); + ASSERT_NE(0U, desc.size()); + desc = mSessionAns->GetRemoteDescription(kJsepDescriptionCurrent); + ASSERT_NE(0U, desc.size()); + desc = mSessionAns->GetRemoteDescription(kJsepDescriptionPending); + ASSERT_EQ(0U, desc.size()); + desc = mSessionAns->GetRemoteDescription(kJsepDescriptionPendingOrCurrent); + ASSERT_NE(0U, desc.size()); + desc = mSessionOff->GetLocalDescription(kJsepDescriptionPendingOrCurrent); + ASSERT_NE(0U, desc.size()); + desc = mSessionOff->GetRemoteDescription(kJsepDescriptionPendingOrCurrent); + ASSERT_EQ(0U, desc.size()); + + SetRemoteAnswer(answer); + desc = mSessionOff->GetLocalDescription(kJsepDescriptionCurrent); + ASSERT_NE(0U, desc.size()); + desc = mSessionOff->GetLocalDescription(kJsepDescriptionPending); + ASSERT_EQ(0U, desc.size()); + desc = mSessionOff->GetLocalDescription(kJsepDescriptionPendingOrCurrent); + ASSERT_NE(0U, desc.size()); + desc = mSessionOff->GetRemoteDescription(kJsepDescriptionCurrent); + ASSERT_NE(0U, desc.size()); + desc = mSessionOff->GetRemoteDescription(kJsepDescriptionPending); + ASSERT_EQ(0U, desc.size()); + desc = mSessionOff->GetRemoteDescription(kJsepDescriptionPendingOrCurrent); + ASSERT_NE(0U, desc.size()); + desc = mSessionAns->GetLocalDescription(kJsepDescriptionPendingOrCurrent); + ASSERT_NE(0U, desc.size()); + desc = mSessionAns->GetRemoteDescription(kJsepDescriptionPendingOrCurrent); + ASSERT_NE(0U, desc.size()); +} + +TEST_P(JsepSessionTest, RenegotiationNoChange) { + AddTracks(*mSessionOff); + std::string offer = CreateOffer(); + SetLocalOffer(offer); + SetRemoteOffer(offer); + + AddTracks(*mSessionAns); + std::string answer = CreateAnswer(); + SetLocalAnswer(answer); + SetRemoteAnswer(answer); + + ValidateSetupAttribute(*mSessionOff, SdpSetupAttribute::kActpass); + ValidateSetupAttribute(*mSessionAns, SdpSetupAttribute::kActive); + + std::vector<RefPtr<JsepTransceiver>> origOffererTransceivers = + DeepCopy(mSessionOff->GetTransceivers()); + std::vector<RefPtr<JsepTransceiver>> origAnswererTransceivers = + DeepCopy(mSessionAns->GetTransceivers()); + + std::string reoffer = CreateOffer(); + SetLocalOffer(reoffer); + SetRemoteOffer(reoffer); + + std::string reanswer = CreateAnswer(); + SetLocalAnswer(reanswer); + SetRemoteAnswer(reanswer); + + ValidateSetupAttribute(*mSessionOff, SdpSetupAttribute::kActpass); + ValidateSetupAttribute(*mSessionAns, SdpSetupAttribute::kActive); + + auto newOffererTransceivers = mSessionOff->GetTransceivers(); + auto newAnswererTransceivers = mSessionAns->GetTransceivers(); + + ASSERT_TRUE(Equals(origOffererTransceivers, newOffererTransceivers)); + ASSERT_TRUE(Equals(origAnswererTransceivers, newAnswererTransceivers)); +} + +// Disabled: See Bug 1329028 +TEST_P(JsepSessionTest, DISABLED_RenegotiationSwappedRolesNoChange) { + AddTracks(*mSessionOff); + std::string offer = CreateOffer(); + SetLocalOffer(offer); + SetRemoteOffer(offer); + + AddTracks(*mSessionAns); + std::string answer = CreateAnswer(); + SetLocalAnswer(answer); + SetRemoteAnswer(answer); + + ValidateSetupAttribute(*mSessionOff, SdpSetupAttribute::kActpass); + ValidateSetupAttribute(*mSessionAns, SdpSetupAttribute::kActive); + + auto offererTransceivers = DeepCopy(mSessionOff->GetTransceivers()); + auto answererTransceivers = DeepCopy(mSessionAns->GetTransceivers()); + + SwapOfferAnswerRoles(); + + std::string reoffer = CreateOffer(); + SetLocalOffer(reoffer); + SetRemoteOffer(reoffer); + + std::string reanswer = CreateAnswer(); + SetLocalAnswer(reanswer); + SetRemoteAnswer(reanswer); + + ValidateSetupAttribute(*mSessionOff, SdpSetupAttribute::kActpass); + ValidateSetupAttribute(*mSessionAns, SdpSetupAttribute::kPassive); + + auto newOffererTransceivers = mSessionOff->GetTransceivers(); + auto newAnswererTransceivers = mSessionAns->GetTransceivers(); + + ASSERT_TRUE(Equals(offererTransceivers, newAnswererTransceivers)); + ASSERT_TRUE(Equals(answererTransceivers, newOffererTransceivers)); +} + +static void RemoveLastN(std::vector<RefPtr<JsepTransceiver>>& aTransceivers, + size_t aNum) { + while (aNum--) { + // erase doesn't take reverse_iterator :( + aTransceivers.erase(--aTransceivers.end()); + } +} + +TEST_P(JsepSessionTest, RenegotiationOffererAddsTrack) { + AddTracks(*mSessionOff); + AddTracks(*mSessionAns); + + OfferAnswer(); + + ValidateSetupAttribute(*mSessionOff, SdpSetupAttribute::kActpass); + ValidateSetupAttribute(*mSessionAns, SdpSetupAttribute::kActive); + + std::vector<RefPtr<JsepTransceiver>> origOffererTransceivers = + DeepCopy(mSessionOff->GetTransceivers()); + std::vector<RefPtr<JsepTransceiver>> origAnswererTransceivers = + DeepCopy(mSessionAns->GetTransceivers()); + + std::vector<SdpMediaSection::MediaType> extraTypes; + extraTypes.push_back(SdpMediaSection::kAudio); + extraTypes.push_back(SdpMediaSection::kVideo); + AddTracks(*mSessionOff, extraTypes); + types.insert(types.end(), extraTypes.begin(), extraTypes.end()); + + OfferAnswer(CHECK_SUCCESS); + + ValidateSetupAttribute(*mSessionOff, SdpSetupAttribute::kActpass); + ValidateSetupAttribute(*mSessionAns, SdpSetupAttribute::kActive); + + auto newOffererTransceivers = mSessionOff->GetTransceivers(); + auto newAnswererTransceivers = mSessionAns->GetTransceivers(); + + ASSERT_LE(2U, newOffererTransceivers.size()); + RemoveLastN(newOffererTransceivers, 2); + ASSERT_TRUE(Equals(origOffererTransceivers, newOffererTransceivers)); + + ASSERT_LE(2U, newAnswererTransceivers.size()); + RemoveLastN(newAnswererTransceivers, 2); + ASSERT_TRUE(Equals(origAnswererTransceivers, newAnswererTransceivers)); +} + +TEST_P(JsepSessionTest, RenegotiationAnswererAddsTrack) { + AddTracks(*mSessionOff); + AddTracks(*mSessionAns); + + OfferAnswer(); + + ValidateSetupAttribute(*mSessionOff, SdpSetupAttribute::kActpass); + ValidateSetupAttribute(*mSessionAns, SdpSetupAttribute::kActive); + + std::vector<RefPtr<JsepTransceiver>> origOffererTransceivers = + DeepCopy(mSessionOff->GetTransceivers()); + std::vector<RefPtr<JsepTransceiver>> origAnswererTransceivers = + DeepCopy(mSessionAns->GetTransceivers()); + + std::vector<SdpMediaSection::MediaType> extraTypes; + extraTypes.push_back(SdpMediaSection::kAudio); + extraTypes.push_back(SdpMediaSection::kVideo); + AddTracks(*mSessionAns, extraTypes); + types.insert(types.end(), extraTypes.begin(), extraTypes.end()); + + // We need to add a recvonly m-section to the offer for this to work + mSessionOff->AddTransceiver( + new JsepTransceiver(SdpMediaSection::kAudio, mUuidGen, + SdpDirectionAttribute::Direction::kRecvonly)); + mSessionOff->AddTransceiver( + new JsepTransceiver(SdpMediaSection::kVideo, mUuidGen, + SdpDirectionAttribute::Direction::kRecvonly)); + + std::string offer = CreateOffer(); + SetLocalOffer(offer, CHECK_SUCCESS); + SetRemoteOffer(offer, CHECK_SUCCESS); + + std::string answer = CreateAnswer(); + SetLocalAnswer(answer, CHECK_SUCCESS); + SetRemoteAnswer(answer, CHECK_SUCCESS); + + ValidateSetupAttribute(*mSessionOff, SdpSetupAttribute::kActpass); + ValidateSetupAttribute(*mSessionAns, SdpSetupAttribute::kActive); + + auto newOffererTransceivers = mSessionOff->GetTransceivers(); + auto newAnswererTransceivers = mSessionAns->GetTransceivers(); + + ASSERT_LE(2U, newOffererTransceivers.size()); + RemoveLastN(newOffererTransceivers, 2); + ASSERT_TRUE(Equals(origOffererTransceivers, newOffererTransceivers)); + + ASSERT_LE(2U, newAnswererTransceivers.size()); + RemoveLastN(newAnswererTransceivers, 2); + ASSERT_TRUE(Equals(origAnswererTransceivers, newAnswererTransceivers)); +} + +TEST_P(JsepSessionTest, RenegotiationBothAddTrack) { + AddTracks(*mSessionOff); + AddTracks(*mSessionAns); + + OfferAnswer(); + + ValidateSetupAttribute(*mSessionOff, SdpSetupAttribute::kActpass); + ValidateSetupAttribute(*mSessionAns, SdpSetupAttribute::kActive); + + std::vector<RefPtr<JsepTransceiver>> origOffererTransceivers = + DeepCopy(mSessionOff->GetTransceivers()); + std::vector<RefPtr<JsepTransceiver>> origAnswererTransceivers = + DeepCopy(mSessionAns->GetTransceivers()); + + std::vector<SdpMediaSection::MediaType> extraTypes; + extraTypes.push_back(SdpMediaSection::kAudio); + extraTypes.push_back(SdpMediaSection::kVideo); + AddTracks(*mSessionAns, extraTypes); + AddTracks(*mSessionOff, extraTypes); + types.insert(types.end(), extraTypes.begin(), extraTypes.end()); + + OfferAnswer(CHECK_SUCCESS); + + ValidateSetupAttribute(*mSessionOff, SdpSetupAttribute::kActpass); + ValidateSetupAttribute(*mSessionAns, SdpSetupAttribute::kActive); + + auto newOffererTransceivers = mSessionOff->GetTransceivers(); + auto newAnswererTransceivers = mSessionAns->GetTransceivers(); + + ASSERT_LE(2U, newOffererTransceivers.size()); + RemoveLastN(newOffererTransceivers, 2); + ASSERT_TRUE(Equals(origOffererTransceivers, newOffererTransceivers)); + + ASSERT_LE(2U, newAnswererTransceivers.size()); + RemoveLastN(newAnswererTransceivers, 2); + ASSERT_TRUE(Equals(origAnswererTransceivers, newAnswererTransceivers)); +} + +TEST_P(JsepSessionTest, RenegotiationBothAddTracksToExistingStream) { + AddTracks(*mSessionOff); + AddTracks(*mSessionAns); + if (GetParam() == "datachannel") { + return; + } + + OfferAnswer(); + + auto oHasStream = HasMediaStream(GetLocalTracks(*mSessionOff)); + auto aHasStream = HasMediaStream(GetLocalTracks(*mSessionAns)); + ASSERT_EQ(oHasStream, !GetLocalUniqueStreamIds(*mSessionOff).empty()); + ASSERT_EQ(aHasStream, !GetLocalUniqueStreamIds(*mSessionAns).empty()); + ASSERT_EQ(aHasStream, !GetRemoteUniqueStreamIds(*mSessionOff).empty()); + ASSERT_EQ(oHasStream, !GetRemoteUniqueStreamIds(*mSessionAns).empty()); + + auto firstOffId = GetFirstLocalStreamId(*mSessionOff); + auto firstAnsId = GetFirstLocalStreamId(*mSessionAns); + + auto offererTransceivers = DeepCopy(mSessionOff->GetTransceivers()); + auto answererTransceivers = DeepCopy(mSessionAns->GetTransceivers()); + + std::vector<SdpMediaSection::MediaType> extraTypes; + extraTypes.push_back(SdpMediaSection::kAudio); + extraTypes.push_back(SdpMediaSection::kVideo); + AddTracksToStream(*mSessionOff, firstOffId, extraTypes); + AddTracksToStream(*mSessionAns, firstAnsId, extraTypes); + types.insert(types.end(), extraTypes.begin(), extraTypes.end()); + + OfferAnswer(CHECK_SUCCESS); + + oHasStream = HasMediaStream(GetLocalTracks(*mSessionOff)); + aHasStream = HasMediaStream(GetLocalTracks(*mSessionAns)); + + ASSERT_EQ(oHasStream, !GetLocalUniqueStreamIds(*mSessionOff).empty()); + ASSERT_EQ(aHasStream, !GetLocalUniqueStreamIds(*mSessionAns).empty()); + ASSERT_EQ(aHasStream, !GetRemoteUniqueStreamIds(*mSessionOff).empty()); + ASSERT_EQ(oHasStream, !GetRemoteUniqueStreamIds(*mSessionAns).empty()); + if (oHasStream) { + ASSERT_STREQ(firstOffId.c_str(), + GetFirstLocalStreamId(*mSessionOff).c_str()); + } + if (aHasStream) { + ASSERT_STREQ(firstAnsId.c_str(), + GetFirstLocalStreamId(*mSessionAns).c_str()); + + auto oHasStream = HasMediaStream(GetLocalTracks(*mSessionOff)); + auto aHasStream = HasMediaStream(GetLocalTracks(*mSessionAns)); + ASSERT_EQ(oHasStream, !GetLocalUniqueStreamIds(*mSessionOff).empty()); + ASSERT_EQ(aHasStream, !GetLocalUniqueStreamIds(*mSessionAns).empty()); + } +} + +// The JSEP draft explicitly forbids changing the msid on an m-section, but +// that is a bug. +TEST_P(JsepSessionTest, RenegotiationOffererChangesMsid) { + AddTracks(*mSessionOff); + AddTracks(*mSessionAns); + + OfferAnswer(); + + std::string offer = CreateOffer(); + SetLocalOffer(offer); + + RefPtr<JsepTransceiver> transceiver = + GetNegotiatedTransceiver(*mSessionOff, 0); + ASSERT_TRUE(transceiver); + if (transceiver->GetMediaType() == SdpMediaSection::kApplication) { + return; + } + std::string streamId = transceiver->mSendTrack.GetStreamIds()[0]; + std::string msidToReplace("a=msid:"); + msidToReplace += streamId; + size_t msidOffset = offer.find(msidToReplace); + ASSERT_NE(std::string::npos, msidOffset); + offer.replace(msidOffset, msidToReplace.size(), "a=msid:foo"); + + SetRemoteOffer(offer); + transceiver = GetNegotiatedTransceiver(*mSessionAns, 0); + ASSERT_EQ("foo", transceiver->mRecvTrack.GetStreamIds()[0]); + + std::string answer = CreateAnswer(); + SetLocalAnswer(answer); + SetRemoteAnswer(answer); +} + +// The JSEP draft explicitly forbids changing the msid on an m-section, but +// that is a bug. +TEST_P(JsepSessionTest, RenegotiationAnswererChangesMsid) { + AddTracks(*mSessionOff); + AddTracks(*mSessionAns); + + OfferAnswer(); + + RefPtr<JsepTransceiver> transceiver = + GetNegotiatedTransceiver(*mSessionOff, 0); + ASSERT_TRUE(transceiver); + if (transceiver->GetMediaType() == SdpMediaSection::kApplication) { + return; + } + + std::string offer = CreateOffer(); + SetLocalOffer(offer); + SetRemoteOffer(offer); + std::string answer = CreateAnswer(); + SetLocalAnswer(answer); + + transceiver = GetNegotiatedTransceiver(*mSessionAns, 0); + ASSERT_TRUE(transceiver); + if (transceiver->GetMediaType() == SdpMediaSection::kApplication) { + return; + } + std::string streamId = transceiver->mSendTrack.GetStreamIds()[0]; + std::string msidToReplace("a=msid:"); + msidToReplace += streamId; + size_t msidOffset = answer.find(msidToReplace); + ASSERT_NE(std::string::npos, msidOffset); + answer.replace(msidOffset, msidToReplace.size(), "a=msid:foo"); + + SetRemoteAnswer(answer); + + transceiver = GetNegotiatedTransceiver(*mSessionOff, 0); + ASSERT_EQ("foo", transceiver->mRecvTrack.GetStreamIds()[0]); +} + +TEST_P(JsepSessionTest, RenegotiationOffererStopsTransceiver) { + AddTracks(*mSessionOff); + AddTracks(*mSessionAns); + if (types.back() == SdpMediaSection::kApplication) { + return; + } + + OfferAnswer(); + + std::vector<RefPtr<JsepTransceiver>> origOffererTransceivers = + DeepCopy(mSessionOff->GetTransceivers()); + std::vector<RefPtr<JsepTransceiver>> origAnswererTransceivers = + DeepCopy(mSessionAns->GetTransceivers()); + + auto lastTransceiver = mSessionOff->GetTransceivers().back(); + // Avoid bundle transport side effects; don't stop the BUNDLE-tag! + lastTransceiver->Stop(); + JsepTrack removedTrack(lastTransceiver->mSendTrack); + + OfferAnswer(CHECK_SUCCESS); + + // Last m-section should be disabled + auto offer = GetParsedLocalDescription(*mSessionOff); + const SdpMediaSection* msection = + &offer->GetMediaSection(offer->GetMediaSectionCount() - 1); + ASSERT_TRUE(msection); + ValidateDisabledMSection(msection); + + // Last m-section should be disabled + auto answer = GetParsedLocalDescription(*mSessionAns); + msection = &answer->GetMediaSection(answer->GetMediaSectionCount() - 1); + ASSERT_TRUE(msection); + ValidateDisabledMSection(msection); + + auto newOffererTransceivers = mSessionOff->GetTransceivers(); + auto newAnswererTransceivers = mSessionAns->GetTransceivers(); + + ASSERT_EQ(origOffererTransceivers.size(), newOffererTransceivers.size()); + + ASSERT_FALSE(origOffererTransceivers.back()->IsStopped()); + ASSERT_TRUE(newOffererTransceivers.back()->IsStopped()); + + ASSERT_FALSE(origAnswererTransceivers.back()->IsStopped()); + ASSERT_TRUE(newAnswererTransceivers.back()->IsStopped()); + RemoveLastN(origOffererTransceivers, 1); // Ignore this one + RemoveLastN(newOffererTransceivers, 1); // Ignore this one + RemoveLastN(origAnswererTransceivers, 1); // Ignore this one + RemoveLastN(newAnswererTransceivers, 1); // Ignore this one + + ASSERT_TRUE(Equals(origOffererTransceivers, newOffererTransceivers)); + ASSERT_TRUE(Equals(origAnswererTransceivers, newAnswererTransceivers)); +} + +TEST_P(JsepSessionTest, RenegotiationAnswererStopsTransceiver) { + AddTracks(*mSessionOff); + AddTracks(*mSessionAns); + if (types.back() == SdpMediaSection::kApplication) { + return; + } + + OfferAnswer(); + + std::vector<RefPtr<JsepTransceiver>> origOffererTransceivers = + DeepCopy(mSessionOff->GetTransceivers()); + std::vector<RefPtr<JsepTransceiver>> origAnswererTransceivers = + DeepCopy(mSessionAns->GetTransceivers()); + + // Avoid bundle transport side effects; don't stop the BUNDLE-tag! + mSessionAns->GetTransceivers().back()->Stop(); + JsepTrack removedTrack(mSessionAns->GetTransceivers().back()->mSendTrack); + + OfferAnswer(CHECK_SUCCESS); + + // Last m-section should be sendrecv + auto offer = GetParsedLocalDescription(*mSessionOff); + const SdpMediaSection* msection = + &offer->GetMediaSection(offer->GetMediaSectionCount() - 1); + ASSERT_TRUE(msection); + ASSERT_TRUE(msection->IsReceiving()); + ASSERT_TRUE(msection->IsSending()); + + // Last m-section should be disabled + auto answer = GetParsedLocalDescription(*mSessionAns); + msection = &answer->GetMediaSection(answer->GetMediaSectionCount() - 1); + ASSERT_TRUE(msection); + ValidateDisabledMSection(msection); + + auto newOffererTransceivers = mSessionOff->GetTransceivers(); + auto newAnswererTransceivers = mSessionAns->GetTransceivers(); + + ASSERT_EQ(origOffererTransceivers.size(), newOffererTransceivers.size()); + + ASSERT_FALSE(origOffererTransceivers.back()->IsStopped()); + ASSERT_TRUE(newOffererTransceivers.back()->IsStopped()); + ASSERT_FALSE(origAnswererTransceivers.back()->IsStopped()); + ASSERT_TRUE(newAnswererTransceivers.back()->IsStopped()); + RemoveLastN(origOffererTransceivers, 1); // Ignore this one + RemoveLastN(newOffererTransceivers, 1); // Ignore this one + RemoveLastN(origAnswererTransceivers, 1); // Ignore this one + RemoveLastN(newAnswererTransceivers, 1); // Ignore this one + + ASSERT_TRUE(Equals(origOffererTransceivers, newOffererTransceivers)); + ASSERT_TRUE(Equals(origAnswererTransceivers, newAnswererTransceivers)); +} + +TEST_P(JsepSessionTest, RenegotiationBothStopSameTransceiver) { + AddTracks(*mSessionOff); + AddTracks(*mSessionAns); + if (types.back() == SdpMediaSection::kApplication) { + return; + } + + OfferAnswer(); + + std::vector<RefPtr<JsepTransceiver>> origOffererTransceivers = + DeepCopy(mSessionOff->GetTransceivers()); + std::vector<RefPtr<JsepTransceiver>> origAnswererTransceivers = + DeepCopy(mSessionAns->GetTransceivers()); + + // Avoid bundle transport side effects; don't stop the BUNDLE-tag! + mSessionOff->GetTransceivers().back()->Stop(); + JsepTrack removedTrackOffer( + mSessionOff->GetTransceivers().back()->mSendTrack); + mSessionAns->GetTransceivers().back()->Stop(); + JsepTrack removedTrackAnswer( + mSessionAns->GetTransceivers().back()->mSendTrack); + + OfferAnswer(CHECK_SUCCESS); + + // Last m-section should be disabled + auto offer = GetParsedLocalDescription(*mSessionOff); + const SdpMediaSection* msection = + &offer->GetMediaSection(offer->GetMediaSectionCount() - 1); + ASSERT_TRUE(msection); + ValidateDisabledMSection(msection); + + // Last m-section should be disabled + auto answer = GetParsedLocalDescription(*mSessionAns); + msection = &answer->GetMediaSection(answer->GetMediaSectionCount() - 1); + ASSERT_TRUE(msection); + ValidateDisabledMSection(msection); + + auto newOffererTransceivers = mSessionOff->GetTransceivers(); + auto newAnswererTransceivers = mSessionAns->GetTransceivers(); + + ASSERT_EQ(origOffererTransceivers.size(), newOffererTransceivers.size()); + + ASSERT_FALSE(origOffererTransceivers.back()->IsStopped()); + ASSERT_TRUE(newOffererTransceivers.back()->IsStopped()); + ASSERT_FALSE(origAnswererTransceivers.back()->IsStopped()); + ASSERT_TRUE(newAnswererTransceivers.back()->IsStopped()); + RemoveLastN(origOffererTransceivers, 1); // Ignore this one + RemoveLastN(newOffererTransceivers, 1); // Ignore this one + RemoveLastN(origAnswererTransceivers, 1); // Ignore this one + RemoveLastN(newAnswererTransceivers, 1); // Ignore this one + + ASSERT_TRUE(Equals(origOffererTransceivers, newOffererTransceivers)); + ASSERT_TRUE(Equals(origAnswererTransceivers, newAnswererTransceivers)); +} + +TEST_P(JsepSessionTest, RenegotiationBothStopTransceiverThenAddTrack) { + AddTracks(*mSessionOff); + AddTracks(*mSessionAns); + if (types.back() == SdpMediaSection::kApplication) { + return; + } + + SdpMediaSection::MediaType removedType = types.back(); + + OfferAnswer(); + + // Avoid bundle transport side effects; don't stop the BUNDLE-tag! + mSessionOff->GetTransceivers().back()->Stop(); + JsepTrack removedTrackOffer( + mSessionOff->GetTransceivers().back()->mSendTrack); + mSessionOff->GetTransceivers().back()->Stop(); + JsepTrack removedTrackAnswer( + mSessionOff->GetTransceivers().back()->mSendTrack); + + OfferAnswer(CHECK_SUCCESS); + + std::vector<RefPtr<JsepTransceiver>> origOffererTransceivers = + DeepCopy(mSessionOff->GetTransceivers()); + std::vector<RefPtr<JsepTransceiver>> origAnswererTransceivers = + DeepCopy(mSessionAns->GetTransceivers()); + + std::vector<SdpMediaSection::MediaType> extraTypes; + extraTypes.push_back(removedType); + AddTracks(*mSessionAns, extraTypes); + AddTracks(*mSessionOff, extraTypes); + types.insert(types.end(), extraTypes.begin(), extraTypes.end()); + + OfferAnswer(CHECK_SUCCESS); + + auto newOffererTransceivers = mSessionOff->GetTransceivers(); + auto newAnswererTransceivers = mSessionAns->GetTransceivers(); + + ASSERT_EQ(origOffererTransceivers.size() + 1, newOffererTransceivers.size()); + ASSERT_EQ(origAnswererTransceivers.size() + 1, + newAnswererTransceivers.size()); + + // Ensure that the m-section was re-used; no gaps + ASSERT_EQ(origOffererTransceivers.back()->GetLevel(), + newOffererTransceivers.back()->GetLevel()); + + ASSERT_EQ(origAnswererTransceivers.back()->GetLevel(), + newAnswererTransceivers.back()->GetLevel()); +} + +TEST_P(JsepSessionTest, RenegotiationBothStopTransceiverDifferentMsection) { + AddTracks(*mSessionOff); + AddTracks(*mSessionAns); + + if (types.size() < 2) { + return; + } + + if (mSessionOff->GetTransceivers()[0]->GetMediaType() == + SdpMediaSection::kApplication || + mSessionOff->GetTransceivers()[1]->GetMediaType() == + SdpMediaSection::kApplication) { + return; + } + + OfferAnswer(); + + mSessionOff->GetTransceivers()[0]->Stop(); + mSessionOff->GetTransceivers()[1]->Stop(); + + OfferAnswer(CHECK_SUCCESS); + ASSERT_TRUE(mSessionAns->GetTransceivers()[0]->IsStopped()); + ASSERT_TRUE(mSessionAns->GetTransceivers()[1]->IsStopped()); +} + +TEST_P(JsepSessionTest, RenegotiationOffererChangesStreamId) { + AddTracks(*mSessionOff); + AddTracks(*mSessionAns); + + if (mSessionOff->GetTransceivers()[0]->GetMediaType() == + SdpMediaSection::kApplication) { + return; + } + + OfferAnswer(); + + mSessionOff->GetTransceivers()[0]->mSendTrack.UpdateStreamIds( + std::vector<std::string>(1, "newstream")); + + OfferAnswer(CHECK_SUCCESS); + + ASSERT_EQ("newstream", + mSessionAns->GetTransceivers()[0]->mRecvTrack.GetStreamIds()[0]); +} + +TEST_P(JsepSessionTest, RenegotiationAnswererChangesStreamId) { + AddTracks(*mSessionOff); + AddTracks(*mSessionAns); + + if (mSessionOff->GetTransceivers()[0]->GetMediaType() == + SdpMediaSection::kApplication) { + return; + } + + OfferAnswer(); + + mSessionAns->GetTransceivers()[0]->mSendTrack.UpdateStreamIds( + std::vector<std::string>(1, "newstream")); + + OfferAnswer(CHECK_SUCCESS); + + ASSERT_EQ("newstream", + mSessionOff->GetTransceivers()[0]->mRecvTrack.GetStreamIds()[0]); +} + +// Tests whether auto-assigned remote msids (ie; what happens when the other +// side doesn't use msid attributes) are stable across renegotiation. +TEST_P(JsepSessionTest, RenegotiationAutoAssignedMsidIsStable) { + AddTracks(*mSessionOff); + std::string offer = CreateOffer(); + SetLocalOffer(offer); + SetRemoteOffer(offer); + AddTracks(*mSessionAns); + std::string answer = CreateAnswer(); + SetLocalAnswer(answer); + + DisableMsid(&answer); + + SetRemoteAnswer(answer, CHECK_SUCCESS); + + std::vector<RefPtr<JsepTransceiver>> origOffererTransceivers = + DeepCopy(mSessionOff->GetTransceivers()); + std::vector<RefPtr<JsepTransceiver>> origAnswererTransceivers = + DeepCopy(mSessionAns->GetTransceivers()); + + ASSERT_EQ(origOffererTransceivers.size(), origAnswererTransceivers.size()); + for (size_t i = 0; i < origOffererTransceivers.size(); ++i) { + ASSERT_FALSE(IsNull(origOffererTransceivers[i]->mRecvTrack)); + ASSERT_FALSE(IsNull(origAnswererTransceivers[i]->mSendTrack)); + // These should not match since we've monkeyed with the msid + ASSERT_NE(origOffererTransceivers[i]->mRecvTrack.GetStreamIds(), + origAnswererTransceivers[i]->mSendTrack.GetStreamIds()); + } + + offer = CreateOffer(); + SetLocalOffer(offer); + SetRemoteOffer(offer); + answer = CreateAnswer(); + SetLocalAnswer(answer); + + DisableMsid(&answer); + + SetRemoteAnswer(answer, CHECK_SUCCESS); + + auto newOffererTransceivers = mSessionOff->GetTransceivers(); + + ASSERT_TRUE(Equals(origOffererTransceivers, newOffererTransceivers)); +} + +TEST_P(JsepSessionTest, RenegotiationOffererDisablesTelephoneEvent) { + AddTracks(*mSessionOff); + AddTracks(*mSessionAns); + OfferAnswer(); + + // check all the audio tracks to make sure they have 2 codecs (109 and 101), + // and dtmf is enabled on all audio tracks + std::vector<JsepTrack> tracks; + for (const auto& transceiver : mSessionOff->GetTransceivers()) { + tracks.push_back(transceiver->mSendTrack); + tracks.push_back(transceiver->mRecvTrack); + } + + for (const JsepTrack& track : tracks) { + if (track.GetMediaType() != SdpMediaSection::kAudio) { + continue; + } + const JsepTrackNegotiatedDetails* details = track.GetNegotiatedDetails(); + ASSERT_EQ(1U, details->GetEncodingCount()); + const JsepTrackEncoding& encoding = details->GetEncoding(0); + ASSERT_EQ(5U, encoding.GetCodecs().size()); + ASSERT_TRUE(encoding.HasFormat("109")); + ASSERT_TRUE(encoding.HasFormat("101")); + for (const auto& codec : encoding.GetCodecs()) { + ASSERT_TRUE(codec); + // we can cast here because we've already checked for audio track + const JsepAudioCodecDescription* audioCodec = + static_cast<const JsepAudioCodecDescription*>(codec.get()); + ASSERT_TRUE(audioCodec->mDtmfEnabled); + } + } + + std::string offer = CreateOffer(); + ReplaceInSdp(&offer, "8 101", "8"); + ReplaceInSdp(&offer, "a=fmtp:101 0-15\r\n", ""); + ReplaceInSdp(&offer, "a=rtpmap:101 telephone-event/8000/1\r\n", ""); + std::cerr << "modified OFFER: " << offer << std::endl; + + SetLocalOffer(offer); + SetRemoteOffer(offer); + std::string answer = CreateAnswer(); + SetLocalAnswer(answer); + SetRemoteAnswer(answer); + + // check all the audio tracks to make sure they have 1 codec (109), + // and dtmf is disabled on all audio tracks + tracks.clear(); + for (const auto& transceiver : mSessionOff->GetTransceivers()) { + tracks.push_back(transceiver->mSendTrack); + tracks.push_back(transceiver->mRecvTrack); + } + + for (const JsepTrack& track : tracks) { + if (track.GetMediaType() != SdpMediaSection::kAudio) { + continue; + } + const JsepTrackNegotiatedDetails* details = track.GetNegotiatedDetails(); + ASSERT_EQ(1U, details->GetEncodingCount()); + const JsepTrackEncoding& encoding = details->GetEncoding(0); + ASSERT_EQ(4U, encoding.GetCodecs().size()); + ASSERT_TRUE(encoding.HasFormat("109")); + // we can cast here because we've already checked for audio track + const JsepAudioCodecDescription* audioCodec = + static_cast<const JsepAudioCodecDescription*>( + encoding.GetCodecs()[0].get()); + ASSERT_TRUE(audioCodec); + ASSERT_FALSE(audioCodec->mDtmfEnabled); + } +} + +// Tests behavior when the answerer does not use msid in the initial exchange, +// but does on renegotiation. +TEST_P(JsepSessionTest, RenegotiationAnswererEnablesMsid) { + AddTracks(*mSessionOff); + std::string offer = CreateOffer(); + SetLocalOffer(offer); + SetRemoteOffer(offer); + AddTracks(*mSessionAns); + std::string answer = CreateAnswer(); + SetLocalAnswer(answer); + + DisableMsid(&answer); + + SetRemoteAnswer(answer, CHECK_SUCCESS); + + std::vector<RefPtr<JsepTransceiver>> origOffererTransceivers = + DeepCopy(mSessionOff->GetTransceivers()); + std::vector<RefPtr<JsepTransceiver>> origAnswererTransceivers = + DeepCopy(mSessionAns->GetTransceivers()); + + offer = CreateOffer(); + SetLocalOffer(offer); + SetRemoteOffer(offer); + answer = CreateAnswer(); + SetLocalAnswer(answer); + SetRemoteAnswer(answer, CHECK_SUCCESS); + + auto newOffererTransceivers = mSessionOff->GetTransceivers(); + + ASSERT_EQ(origOffererTransceivers.size(), newOffererTransceivers.size()); + for (size_t i = 0; i < origOffererTransceivers.size(); ++i) { + ASSERT_EQ(origOffererTransceivers[i]->mRecvTrack.GetMediaType(), + newOffererTransceivers[i]->mRecvTrack.GetMediaType()); + + ASSERT_TRUE(Equals(origOffererTransceivers[i]->mSendTrack, + newOffererTransceivers[i]->mSendTrack)); + ASSERT_TRUE(Equals(origOffererTransceivers[i]->mTransport, + newOffererTransceivers[i]->mTransport)); + + if (origOffererTransceivers[i]->mRecvTrack.GetMediaType() == + SdpMediaSection::kApplication) { + ASSERT_TRUE(Equals(origOffererTransceivers[i]->mRecvTrack, + newOffererTransceivers[i]->mRecvTrack)); + } else { + // This should be the only difference + ASSERT_FALSE(Equals(origOffererTransceivers[i]->mRecvTrack, + newOffererTransceivers[i]->mRecvTrack)); + } + } +} + +TEST_P(JsepSessionTest, RenegotiationAnswererDisablesMsid) { + AddTracks(*mSessionOff); + std::string offer = CreateOffer(); + SetLocalOffer(offer); + SetRemoteOffer(offer); + AddTracks(*mSessionAns); + std::string answer = CreateAnswer(); + SetLocalAnswer(answer); + SetRemoteAnswer(answer, CHECK_SUCCESS); + + std::vector<RefPtr<JsepTransceiver>> origOffererTransceivers = + DeepCopy(mSessionOff->GetTransceivers()); + std::vector<RefPtr<JsepTransceiver>> origAnswererTransceivers = + DeepCopy(mSessionAns->GetTransceivers()); + + offer = CreateOffer(); + SetLocalOffer(offer); + SetRemoteOffer(offer); + answer = CreateAnswer(); + SetLocalAnswer(answer); + + DisableMsid(&answer); + + SetRemoteAnswer(answer, CHECK_SUCCESS); + + auto newOffererTransceivers = mSessionOff->GetTransceivers(); + + ASSERT_EQ(origOffererTransceivers.size(), newOffererTransceivers.size()); + for (size_t i = 0; i < origOffererTransceivers.size(); ++i) { + ASSERT_EQ(origOffererTransceivers[i]->mRecvTrack.GetMediaType(), + newOffererTransceivers[i]->mRecvTrack.GetMediaType()); + + ASSERT_TRUE(Equals(origOffererTransceivers[i]->mSendTrack, + newOffererTransceivers[i]->mSendTrack)); + ASSERT_TRUE(Equals(origOffererTransceivers[i]->mTransport, + newOffererTransceivers[i]->mTransport)); + + if (origOffererTransceivers[i]->mRecvTrack.GetMediaType() == + SdpMediaSection::kApplication) { + ASSERT_TRUE(Equals(origOffererTransceivers[i]->mRecvTrack, + newOffererTransceivers[i]->mRecvTrack)); + } else { + // This should be the only difference + ASSERT_FALSE(Equals(origOffererTransceivers[i]->mRecvTrack, + newOffererTransceivers[i]->mRecvTrack)); + } + } +} + +// Tests behavior when offerer does not use bundle on the initial offer/answer, +// but does on renegotiation. +TEST_P(JsepSessionTest, RenegotiationOffererEnablesBundle) { + AddTracks(*mSessionOff); + AddTracks(*mSessionAns); + + if (types.size() < 2) { + // No bundle will happen here. + return; + } + + std::string offer = CreateOffer(); + + DisableBundle(&offer); + + SetLocalOffer(offer); + SetRemoteOffer(offer); + std::string answer = CreateAnswer(); + SetLocalAnswer(answer); + SetRemoteAnswer(answer); + + std::vector<RefPtr<JsepTransceiver>> origOffererTransceivers = + DeepCopy(mSessionOff->GetTransceivers()); + std::vector<RefPtr<JsepTransceiver>> origAnswererTransceivers = + DeepCopy(mSessionAns->GetTransceivers()); + + OfferAnswer(); + + auto newOffererTransceivers = mSessionOff->GetTransceivers(); + auto newAnswererTransceivers = mSessionAns->GetTransceivers(); + + ASSERT_EQ(newOffererTransceivers.size(), newAnswererTransceivers.size()); + ASSERT_EQ(origOffererTransceivers.size(), newOffererTransceivers.size()); + ASSERT_EQ(origAnswererTransceivers.size(), newAnswererTransceivers.size()); + + for (size_t i = 0; i < newOffererTransceivers.size(); ++i) { + // No bundle initially + ASSERT_FALSE(origOffererTransceivers[i]->HasBundleLevel()); + ASSERT_FALSE(origAnswererTransceivers[i]->HasBundleLevel()); + if (i != 0) { + ASSERT_FALSE(Equals(origOffererTransceivers[0]->mTransport, + origOffererTransceivers[i]->mTransport)); + ASSERT_FALSE(Equals(origAnswererTransceivers[0]->mTransport, + origAnswererTransceivers[i]->mTransport)); + } + + // Verify that bundle worked after renegotiation + ASSERT_TRUE(newOffererTransceivers[i]->HasBundleLevel()); + ASSERT_TRUE(newAnswererTransceivers[i]->HasBundleLevel()); + ASSERT_TRUE(Equals(newOffererTransceivers[0]->mTransport, + newOffererTransceivers[i]->mTransport)); + ASSERT_TRUE(Equals(newAnswererTransceivers[0]->mTransport, + newAnswererTransceivers[i]->mTransport)); + } +} + +TEST_P(JsepSessionTest, RenegotiationOffererDisablesBundleTransport) { + AddTracks(*mSessionOff); + AddTracks(*mSessionAns); + + if (types.size() < 2) { + return; + } + + OfferAnswer(); + + GetTransceiverByLevel(*mSessionOff, 0)->Stop(); + + std::vector<RefPtr<JsepTransceiver>> origOffererTransceivers = + DeepCopy(mSessionOff->GetTransceivers()); + std::vector<RefPtr<JsepTransceiver>> origAnswererTransceivers = + DeepCopy(mSessionAns->GetTransceivers()); + + OfferAnswer(CHECK_SUCCESS); + + auto newOffererTransceivers = mSessionOff->GetTransceivers(); + auto newAnswererTransceivers = mSessionAns->GetTransceivers(); + + ASSERT_EQ(newOffererTransceivers.size(), newAnswererTransceivers.size()); + ASSERT_EQ(origOffererTransceivers.size(), newOffererTransceivers.size()); + ASSERT_EQ(origAnswererTransceivers.size(), newAnswererTransceivers.size()); + + JsepTransceiver* ot0 = GetTransceiverByLevel(newOffererTransceivers, 0); + JsepTransceiver* at0 = GetTransceiverByLevel(newAnswererTransceivers, 0); + ASSERT_FALSE(ot0->HasBundleLevel()); + ASSERT_FALSE(at0->HasBundleLevel()); + + ASSERT_FALSE( + Equals(ot0->mTransport, + GetTransceiverByLevel(origOffererTransceivers, 0)->mTransport)); + ASSERT_FALSE( + Equals(at0->mTransport, + GetTransceiverByLevel(origAnswererTransceivers, 0)->mTransport)); + + ASSERT_EQ(0U, ot0->mTransport.mComponents); + ASSERT_EQ(0U, at0->mTransport.mComponents); + + for (size_t i = 1; i < types.size() - 1; ++i) { + JsepTransceiver* ot = GetTransceiverByLevel(newOffererTransceivers, i); + JsepTransceiver* at = GetTransceiverByLevel(newAnswererTransceivers, i); + ASSERT_TRUE(ot->HasBundleLevel()); + ASSERT_TRUE(at->HasBundleLevel()); + ASSERT_EQ(1U, ot->BundleLevel()); + ASSERT_EQ(1U, at->BundleLevel()); + ASSERT_FALSE(Equals(ot0->mTransport, ot->mTransport)); + ASSERT_FALSE(Equals(at0->mTransport, at->mTransport)); + } +} + +TEST_P(JsepSessionTest, RenegotiationAnswererDisablesBundleTransport) { + AddTracks(*mSessionOff); + AddTracks(*mSessionAns); + + if (types.size() < 2) { + return; + } + + OfferAnswer(); + + std::vector<RefPtr<JsepTransceiver>> origOffererTransceivers = + DeepCopy(mSessionOff->GetTransceivers()); + std::vector<RefPtr<JsepTransceiver>> origAnswererTransceivers = + DeepCopy(mSessionAns->GetTransceivers()); + + GetTransceiverByLevel(*mSessionAns, 0)->Stop(); + + OfferAnswer(CHECK_SUCCESS); + + auto newOffererTransceivers = mSessionOff->GetTransceivers(); + auto newAnswererTransceivers = mSessionAns->GetTransceivers(); + + ASSERT_EQ(newOffererTransceivers.size(), newAnswererTransceivers.size()); + ASSERT_EQ(origOffererTransceivers.size(), newOffererTransceivers.size()); + ASSERT_EQ(origAnswererTransceivers.size(), newAnswererTransceivers.size()); + + JsepTransceiver* ot0 = GetTransceiverByLevel(newOffererTransceivers, 0); + JsepTransceiver* at0 = GetTransceiverByLevel(newAnswererTransceivers, 0); + ASSERT_FALSE(ot0->HasBundleLevel()); + ASSERT_FALSE(at0->HasBundleLevel()); + + ASSERT_FALSE( + Equals(ot0->mTransport, + GetTransceiverByLevel(origOffererTransceivers, 0)->mTransport)); + ASSERT_FALSE( + Equals(at0->mTransport, + GetTransceiverByLevel(origAnswererTransceivers, 0)->mTransport)); + + ASSERT_EQ(0U, ot0->mTransport.mComponents); + ASSERT_EQ(0U, at0->mTransport.mComponents); + + // With bundle-policy "balanced", this ends up being somewhat complicated. + // The first m-section of each type is _not_ marked bundle-only, + // but subsequent m-sections of that type are. This means that if there is + // more than one type, there is more than one transport, which means there's + // a fallback when the bundle-tag is disabled (the first such transport). We + // should be using that fallback when it exists. + Maybe<size_t> fallbackTransport; + for (size_t level = 1; level != types.size(); ++level) { + if (types[level] != types[0]) { + fallbackTransport = Some(level); + break; + } + } + + for (size_t i = 1; i < newOffererTransceivers.size(); ++i) { + JsepTransceiver* ot = GetTransceiverByLevel(newOffererTransceivers, i); + JsepTransceiver* at = GetTransceiverByLevel(newAnswererTransceivers, i); + // If there is no fallback, the bundle level will be left pointing at the + // dead transport at index 0. + size_t expectedBundleLevel = fallbackTransport.valueOr(0); + JsepTransceiver* otWithTransport = + GetTransceiverByLevel(newOffererTransceivers, expectedBundleLevel); + JsepTransceiver* atWithTransport = + GetTransceiverByLevel(newAnswererTransceivers, expectedBundleLevel); + ASSERT_TRUE(ot->HasBundleLevel()); + ASSERT_TRUE(at->HasBundleLevel()); + ASSERT_EQ(expectedBundleLevel, ot->BundleLevel()); + ASSERT_EQ(expectedBundleLevel, at->BundleLevel()); + // TODO: When creating an answer where we have rejected the bundle + // transport, we do not do a good job of creating a sensible SDP. Mainly, + // when we remove the rejected mid from the bundle group, we can leave a + // bundle-only mid as the first one when others are available. + ASSERT_TRUE(Equals(otWithTransport->mTransport, ot->mTransport)); + ASSERT_TRUE(Equals(atWithTransport->mTransport, at->mTransport)); + } +} + +TEST_P(JsepSessionTest, ParseRejectsBadMediaFormat) { + AddTracks(*mSessionOff); + if (types.front() == SdpMediaSection::MediaType::kApplication) { + return; + } + std::string offer = CreateOffer(); + UniquePtr<Sdp> munge(Parse(offer)); + SdpMediaSection& mediaSection = munge->GetMediaSection(0); + mediaSection.AddCodec("75", "DummyFormatVal", 8000, 1); + std::string sdpString = munge->ToString(); + JsepSession::Result result = + mSessionOff->SetLocalDescription(kJsepSdpOffer, sdpString); + ASSERT_EQ(dom::PCError::OperationError, *result.mError); +} + +TEST_P(JsepSessionTest, FullCallWithCandidates) { + AddTracks(*mSessionOff); + std::string offer = CreateOffer(); + SetLocalOffer(offer); + mOffCandidates->Gather(*mSessionOff); + + UniquePtr<Sdp> localOffer( + Parse(mSessionOff->GetLocalDescription(kJsepDescriptionPending))); + for (size_t i = 0; i < localOffer->GetMediaSectionCount(); ++i) { + std::string id = GetTransportId(*mSessionOff, i); + bool bundleOnly = + localOffer->GetMediaSection(i).GetAttributeList().HasAttribute( + SdpAttribute::kBundleOnlyAttribute); + mOffCandidates->CheckRtpCandidates( + !bundleOnly, localOffer->GetMediaSection(i), id, + "Local offer after gathering should have RTP candidates " + "(unless bundle-only)"); + mOffCandidates->CheckDefaultRtpCandidate( + !bundleOnly, localOffer->GetMediaSection(i), id, + "Local offer after gathering should have a default RTP candidate " + "(unless bundle-only)"); + mOffCandidates->CheckRtcpCandidates( + !bundleOnly && types[i] != SdpMediaSection::kApplication, + localOffer->GetMediaSection(i), id, + "Local offer after gathering should have RTCP candidates " + "(unless m=application or bundle-only)"); + mOffCandidates->CheckDefaultRtcpCandidate( + !bundleOnly && types[i] != SdpMediaSection::kApplication, + localOffer->GetMediaSection(i), id, + "Local offer after gathering should have a default RTCP candidate " + "(unless m=application or bundle-only)"); + CheckEndOfCandidates( + !bundleOnly, localOffer->GetMediaSection(i), + "Local offer after gathering should have an end-of-candidates " + "(unless bundle-only)"); + } + + SetRemoteOffer(offer); + mOffCandidates->Trickle(*mSessionAns); + + UniquePtr<Sdp> remoteOffer( + Parse(mSessionAns->GetRemoteDescription(kJsepDescriptionPending))); + for (size_t i = 0; i < remoteOffer->GetMediaSectionCount(); ++i) { + std::string id = GetTransportId(*mSessionOff, i); + bool bundleOnly = + remoteOffer->GetMediaSection(i).GetAttributeList().HasAttribute( + SdpAttribute::kBundleOnlyAttribute); + mOffCandidates->CheckRtpCandidates( + !bundleOnly, remoteOffer->GetMediaSection(i), id, + "Remote offer after trickle should have RTP candidates " + "(unless bundle-only)"); + mOffCandidates->CheckDefaultRtpCandidate( + false, remoteOffer->GetMediaSection(i), id, + "Remote offer after trickle should not have a default RTP candidate."); + mOffCandidates->CheckRtcpCandidates( + !bundleOnly && types[i] != SdpMediaSection::kApplication, + remoteOffer->GetMediaSection(i), id, + "Remote offer after trickle should have RTCP candidates " + "(unless m=application or bundle-only)"); + mOffCandidates->CheckDefaultRtcpCandidate( + false, remoteOffer->GetMediaSection(i), id, + "Remote offer after trickle should not have a default RTCP candidate."); + CheckEndOfCandidates( + true, remoteOffer->GetMediaSection(i), + "Remote offer after trickle should have an end-of-candidates."); + } + + AddTracks(*mSessionAns); + std::string answer = CreateAnswer(); + SetLocalAnswer(answer); + // This will gather candidates that mSessionAns knows it doesn't need. + // They should not be present in the SDP. + mAnsCandidates->Gather(*mSessionAns); + + UniquePtr<Sdp> localAnswer( + Parse(mSessionAns->GetLocalDescription(kJsepDescriptionCurrent))); + std::string id0 = GetTransportId(*mSessionAns, 0); + for (size_t i = 0; i < localAnswer->GetMediaSectionCount(); ++i) { + std::string id = GetTransportId(*mSessionAns, i); + mAnsCandidates->CheckRtpCandidates( + i == 0, localAnswer->GetMediaSection(i), id, + "Local answer after gathering should have RTP candidates on level 0."); + mAnsCandidates->CheckDefaultRtpCandidate( + true, localAnswer->GetMediaSection(i), id0, + "Local answer after gathering should have a default RTP candidate " + "on all levels that matches transport level 0."); + mAnsCandidates->CheckRtcpCandidates( + false, localAnswer->GetMediaSection(i), id, + "Local answer after gathering should not have RTCP candidates " + "(because we're answering with rtcp-mux)"); + mAnsCandidates->CheckDefaultRtcpCandidate( + false, localAnswer->GetMediaSection(i), id, + "Local answer after gathering should not have a default RTCP candidate " + "(because we're answering with rtcp-mux)"); + CheckEndOfCandidates( + i == 0, localAnswer->GetMediaSection(i), + "Local answer after gathering should have an end-of-candidates only for" + " level 0."); + } + + SetRemoteAnswer(answer); + mAnsCandidates->Trickle(*mSessionOff); + + UniquePtr<Sdp> remoteAnswer( + Parse(mSessionOff->GetRemoteDescription(kJsepDescriptionCurrent))); + for (size_t i = 0; i < remoteAnswer->GetMediaSectionCount(); ++i) { + std::string id = GetTransportId(*mSessionAns, i); + mAnsCandidates->CheckRtpCandidates( + i == 0, remoteAnswer->GetMediaSection(i), id, + "Remote answer after trickle should have RTP candidates on level 0."); + mAnsCandidates->CheckDefaultRtpCandidate( + false, remoteAnswer->GetMediaSection(i), id, + "Remote answer after trickle should not have a default RTP candidate."); + mAnsCandidates->CheckRtcpCandidates( + false, remoteAnswer->GetMediaSection(i), id, + "Remote answer after trickle should not have RTCP candidates " + "(because we're answering with rtcp-mux)"); + mAnsCandidates->CheckDefaultRtcpCandidate( + false, remoteAnswer->GetMediaSection(i), id, + "Remote answer after trickle should not have a default RTCP " + "candidate."); + CheckEndOfCandidates( + true, remoteAnswer->GetMediaSection(i), + "Remote answer after trickle should have an end-of-candidates."); + } +} + +TEST_P(JsepSessionTest, RenegotiationWithCandidates) { + AddTracks(*mSessionOff); + std::string offer = CreateOffer(); + SetLocalOffer(offer); + mOffCandidates->Gather(*mSessionOff); + SetRemoteOffer(offer); + mOffCandidates->Trickle(*mSessionAns); + AddTracks(*mSessionAns); + std::string answer = CreateAnswer(); + SetLocalAnswer(answer); + mAnsCandidates->Gather(*mSessionAns); + SetRemoteAnswer(answer); + mAnsCandidates->Trickle(*mSessionOff); + + offer = CreateOffer(); + SetLocalOffer(offer); + + UniquePtr<Sdp> parsedOffer(Parse(offer)); + std::string id0 = GetTransportId(*mSessionOff, 0); + for (size_t i = 0; i < parsedOffer->GetMediaSectionCount(); ++i) { + std::string id = GetTransportId(*mSessionOff, i); + mOffCandidates->CheckRtpCandidates( + i == 0, parsedOffer->GetMediaSection(i), id, + "Local reoffer before gathering should have RTP candidates on level 0" + " only."); + mOffCandidates->CheckDefaultRtpCandidate( + i == 0, parsedOffer->GetMediaSection(i), id0, + "Local reoffer before gathering should have a default RTP candidate " + "on level 0 only."); + mOffCandidates->CheckRtcpCandidates( + false, parsedOffer->GetMediaSection(i), id, + "Local reoffer before gathering should not have RTCP candidates."); + mOffCandidates->CheckDefaultRtcpCandidate( + false, parsedOffer->GetMediaSection(i), id, + "Local reoffer before gathering should not have a default RTCP " + "candidate."); + CheckEndOfCandidates( + i == 0, parsedOffer->GetMediaSection(i), + "Local reoffer before gathering should have an end-of-candidates " + "(level 0 only)"); + } + + // mSessionAns should generate a reoffer that is similar + std::string otherOffer; + JsepOfferOptions defaultOptions; + JsepSession::Result result = + mSessionAns->CreateOffer(defaultOptions, &otherOffer); + ASSERT_FALSE(result.mError.isSome()); + parsedOffer = Parse(otherOffer); + id0 = GetTransportId(*mSessionAns, 0); + for (size_t i = 0; i < parsedOffer->GetMediaSectionCount(); ++i) { + std::string id = GetTransportId(*mSessionAns, i); + mAnsCandidates->CheckRtpCandidates( + i == 0, parsedOffer->GetMediaSection(i), id, + "Local reoffer before gathering should have RTP candidates on level 0" + " only. (previous answerer)"); + mAnsCandidates->CheckDefaultRtpCandidate( + i == 0, parsedOffer->GetMediaSection(i), id0, + "Local reoffer before gathering should have a default RTP candidate " + "on level 0 only. (previous answerer)"); + mAnsCandidates->CheckRtcpCandidates( + false, parsedOffer->GetMediaSection(i), id, + "Local reoffer before gathering should not have RTCP candidates." + " (previous answerer)"); + mAnsCandidates->CheckDefaultRtcpCandidate( + false, parsedOffer->GetMediaSection(i), id, + "Local reoffer before gathering should not have a default RTCP " + "candidate. (previous answerer)"); + CheckEndOfCandidates( + i == 0, parsedOffer->GetMediaSection(i), + "Local reoffer before gathering should have an end-of-candidates " + "(level 0 only)"); + } + + // Ok, let's continue with the renegotiation + SetRemoteOffer(offer); + + // PeerConnection will not re-gather for RTP, but it will for RTCP in case + // the answerer decides to turn off rtcp-mux. + if (types[0] != SdpMediaSection::kApplication) { + mOffCandidates->Gather(*mSessionOff, GetTransportId(*mSessionOff, 0), RTCP); + } + + // Since the remaining levels were bundled, PeerConnection will re-gather for + // both RTP and RTCP, in case the answerer rejects bundle, provided + // bundle-only isn't being used. + UniquePtr<Sdp> localOffer( + Parse(mSessionOff->GetLocalDescription(kJsepDescriptionPending))); + for (size_t level = 1; level < types.size(); ++level) { + std::string id = GetTransportId(*mSessionOff, level); + bool bundleOnly = + localOffer->GetMediaSection(level).GetAttributeList().HasAttribute( + SdpAttribute::kBundleOnlyAttribute); + if (!id.empty() && !bundleOnly) { + mOffCandidates->Gather(*mSessionOff, id, RTP); + if (types[level] != SdpMediaSection::kApplication) { + mOffCandidates->Gather(*mSessionOff, id, RTCP); + } + } + } + mOffCandidates->FinishGathering(*mSessionOff); + localOffer = Parse(mSessionOff->GetLocalDescription(kJsepDescriptionPending)); + + mOffCandidates->Trickle(*mSessionAns); + + for (size_t i = 0; i < localOffer->GetMediaSectionCount(); ++i) { + std::string id = GetTransportId(*mSessionOff, i); + bool bundleOnly = + localOffer->GetMediaSection(i).GetAttributeList().HasAttribute( + SdpAttribute::kBundleOnlyAttribute); + mOffCandidates->CheckRtpCandidates( + !bundleOnly, localOffer->GetMediaSection(i), id, + "Local reoffer after gathering should have RTP candidates " + "(unless bundle-only)"); + mOffCandidates->CheckDefaultRtpCandidate( + !bundleOnly, localOffer->GetMediaSection(i), id, + "Local reoffer after gathering should have a default RTP candidate " + "(unless bundle-only)"); + mOffCandidates->CheckRtcpCandidates( + !bundleOnly && (types[i] != SdpMediaSection::kApplication), + localOffer->GetMediaSection(i), id, + "Local reoffer after gathering should have RTCP candidates " + "(unless m=application or bundle-only)"); + mOffCandidates->CheckDefaultRtcpCandidate( + !bundleOnly && (types[i] != SdpMediaSection::kApplication), + localOffer->GetMediaSection(i), id, + "Local reoffer after gathering should have a default RTCP candidate " + "(unless m=application or bundle-only)"); + CheckEndOfCandidates( + !bundleOnly, localOffer->GetMediaSection(i), + "Local reoffer after gathering should have an end-of-candidates " + "(unless bundle-only)"); + } + + UniquePtr<Sdp> remoteOffer( + Parse(mSessionAns->GetRemoteDescription(kJsepDescriptionPending))); + for (size_t i = 0; i < remoteOffer->GetMediaSectionCount(); ++i) { + bool bundleOnly = + remoteOffer->GetMediaSection(i).GetAttributeList().HasAttribute( + SdpAttribute::kBundleOnlyAttribute); + std::string id = GetTransportId(*mSessionOff, i); + mOffCandidates->CheckRtpCandidates( + !bundleOnly, remoteOffer->GetMediaSection(i), id, + "Remote reoffer after trickle should have RTP candidates " + "(unless bundle-only)"); + mOffCandidates->CheckDefaultRtpCandidate( + i == 0, remoteOffer->GetMediaSection(i), id, + "Remote reoffer should have a default RTP candidate on level 0 " + "(because it was gathered last offer/answer)."); + mOffCandidates->CheckRtcpCandidates( + !bundleOnly && types[i] != SdpMediaSection::kApplication, + remoteOffer->GetMediaSection(i), id, + "Remote reoffer after trickle should have RTCP candidates " + "(unless m=application or bundle-only)"); + mOffCandidates->CheckDefaultRtcpCandidate( + false, remoteOffer->GetMediaSection(i), id, + "Remote reoffer should not have a default RTCP candidate."); + CheckEndOfCandidates(true, remoteOffer->GetMediaSection(i), + "Remote reoffer should have an end-of-candidates."); + } + + answer = CreateAnswer(); + SetLocalAnswer(answer); + SetRemoteAnswer(answer); + // No candidates should be gathered at the answerer, but default candidates + // should be set. + mAnsCandidates->FinishGathering(*mSessionAns); + + UniquePtr<Sdp> localAnswer( + Parse(mSessionAns->GetLocalDescription(kJsepDescriptionCurrent))); + id0 = GetTransportId(*mSessionAns, 0); + for (size_t i = 0; i < localAnswer->GetMediaSectionCount(); ++i) { + std::string id = GetTransportId(*mSessionAns, 0); + mAnsCandidates->CheckRtpCandidates( + i == 0, localAnswer->GetMediaSection(i), id, + "Local reanswer after gathering should have RTP candidates on level " + "0."); + mAnsCandidates->CheckDefaultRtpCandidate( + true, localAnswer->GetMediaSection(i), id0, + "Local reanswer after gathering should have a default RTP candidate " + "on all levels that matches transport level 0."); + mAnsCandidates->CheckRtcpCandidates( + false, localAnswer->GetMediaSection(i), id, + "Local reanswer after gathering should not have RTCP candidates " + "(because we're reanswering with rtcp-mux)"); + mAnsCandidates->CheckDefaultRtcpCandidate( + false, localAnswer->GetMediaSection(i), id, + "Local reanswer after gathering should not have a default RTCP " + "candidate (because we're reanswering with rtcp-mux)"); + CheckEndOfCandidates( + i == 0, localAnswer->GetMediaSection(i), + "Local reanswer after gathering should have an end-of-candidates only " + "for level 0."); + } + + UniquePtr<Sdp> remoteAnswer( + Parse(mSessionOff->GetRemoteDescription(kJsepDescriptionCurrent))); + for (size_t i = 0; i < localAnswer->GetMediaSectionCount(); ++i) { + std::string id = GetTransportId(*mSessionAns, 0); + mAnsCandidates->CheckRtpCandidates( + i == 0, remoteAnswer->GetMediaSection(i), id, + "Remote reanswer after trickle should have RTP candidates on level 0."); + mAnsCandidates->CheckDefaultRtpCandidate( + i == 0, remoteAnswer->GetMediaSection(i), id, + "Remote reanswer should have a default RTP candidate on level 0 " + "(because it was gathered last offer/answer)."); + mAnsCandidates->CheckRtcpCandidates( + false, remoteAnswer->GetMediaSection(i), id, + "Remote reanswer after trickle should not have RTCP candidates " + "(because we're reanswering with rtcp-mux)"); + mAnsCandidates->CheckDefaultRtcpCandidate( + false, remoteAnswer->GetMediaSection(i), id, + "Remote reanswer after trickle should not have a default RTCP " + "candidate."); + CheckEndOfCandidates(i == 0, remoteAnswer->GetMediaSection(i), + "Remote reanswer after trickle should have an " + "end-of-candidates on level 0 only."); + } +} + +TEST_P(JsepSessionTest, RenegotiationAnswererSendonly) { + AddTracks(*mSessionOff); + AddTracks(*mSessionAns); + OfferAnswer(); + + std::string offer = CreateOffer(); + SetLocalOffer(offer); + SetRemoteOffer(offer); + std::string answer = CreateAnswer(); + SetLocalAnswer(answer); + + UniquePtr<Sdp> parsedAnswer(Parse(answer)); + for (size_t i = 0; i < parsedAnswer->GetMediaSectionCount(); ++i) { + SdpMediaSection& msection = parsedAnswer->GetMediaSection(i); + if (msection.GetMediaType() != SdpMediaSection::kApplication) { + msection.SetReceiving(false); + } + } + + answer = parsedAnswer->ToString(); + + SetRemoteAnswer(answer); + + for (const JsepTrack& track : GetLocalTracks(*mSessionOff)) { + if (track.GetMediaType() != SdpMediaSection::kApplication) { + ASSERT_FALSE(track.GetActive()); + } + } + + ASSERT_EQ(types.size(), mSessionOff->GetTransceivers().size()); +} + +TEST_P(JsepSessionTest, RenegotiationAnswererInactive) { + AddTracks(*mSessionOff); + AddTracks(*mSessionAns); + OfferAnswer(); + + std::string offer = CreateOffer(); + SetLocalOffer(offer); + SetRemoteOffer(offer); + std::string answer = CreateAnswer(); + SetLocalAnswer(answer); + + UniquePtr<Sdp> parsedAnswer(Parse(answer)); + for (size_t i = 0; i < parsedAnswer->GetMediaSectionCount(); ++i) { + SdpMediaSection& msection = parsedAnswer->GetMediaSection(i); + if (msection.GetMediaType() != SdpMediaSection::kApplication) { + msection.SetReceiving(false); + msection.SetSending(false); + } + } + + answer = parsedAnswer->ToString(); + + SetRemoteAnswer(answer, CHECK_SUCCESS); // Won't have answerer tracks + + for (const JsepTrack& track : GetLocalTracks(*mSessionOff)) { + if (track.GetMediaType() != SdpMediaSection::kApplication) { + ASSERT_FALSE(track.GetActive()); + } + } + + ASSERT_EQ(types.size(), mSessionOff->GetTransceivers().size()); +} + +INSTANTIATE_TEST_SUITE_P( + Variants, JsepSessionTest, + ::testing::Values("audio", "video", "datachannel", "audio,video", + "video,audio", "audio,datachannel", "video,datachannel", + "video,audio,datachannel", "audio,video,datachannel", + "datachannel,audio", "datachannel,video", + "datachannel,audio,video", "datachannel,video,audio", + "audio,datachannel,video", "video,datachannel,audio", + "audio,audio", "video,video", "audio,audio,video", + "audio,video,video", "audio,audio,video,video", + "audio,audio,video,video,datachannel")); + +// offerToReceiveXxx variants + +TEST_F(JsepSessionTest, OfferAnswerRecvOnlyLines) { + mSessionOff->AddTransceiver(new JsepTransceiver( + SdpMediaSection::kAudio, mUuidGen, SdpDirectionAttribute::kRecvonly)); + mSessionOff->AddTransceiver(new JsepTransceiver( + SdpMediaSection::kVideo, mUuidGen, SdpDirectionAttribute::kRecvonly)); + mSessionOff->AddTransceiver(new JsepTransceiver( + SdpMediaSection::kVideo, mUuidGen, SdpDirectionAttribute::kRecvonly)); + std::string offer = CreateOffer(); + + UniquePtr<Sdp> parsedOffer(Parse(offer)); + ASSERT_TRUE(!!parsedOffer); + + ASSERT_EQ(3U, parsedOffer->GetMediaSectionCount()); + ASSERT_EQ(SdpMediaSection::kAudio, + parsedOffer->GetMediaSection(0).GetMediaType()); + ASSERT_EQ(SdpDirectionAttribute::kRecvonly, + parsedOffer->GetMediaSection(0).GetAttributeList().GetDirection()); + ASSERT_TRUE(parsedOffer->GetMediaSection(0).GetAttributeList().HasAttribute( + SdpAttribute::kSsrcAttribute)); + + ASSERT_EQ(SdpMediaSection::kVideo, + parsedOffer->GetMediaSection(1).GetMediaType()); + ASSERT_EQ(SdpDirectionAttribute::kRecvonly, + parsedOffer->GetMediaSection(1).GetAttributeList().GetDirection()); + ASSERT_TRUE(parsedOffer->GetMediaSection(1).GetAttributeList().HasAttribute( + SdpAttribute::kSsrcAttribute)); + + ASSERT_EQ(SdpMediaSection::kVideo, + parsedOffer->GetMediaSection(2).GetMediaType()); + ASSERT_EQ(SdpDirectionAttribute::kRecvonly, + parsedOffer->GetMediaSection(2).GetAttributeList().GetDirection()); + ASSERT_TRUE(parsedOffer->GetMediaSection(2).GetAttributeList().HasAttribute( + SdpAttribute::kSsrcAttribute)); + + ASSERT_TRUE(parsedOffer->GetMediaSection(0).GetAttributeList().HasAttribute( + SdpAttribute::kRtcpMuxAttribute)); + ASSERT_TRUE(parsedOffer->GetMediaSection(1).GetAttributeList().HasAttribute( + SdpAttribute::kRtcpMuxAttribute)); + ASSERT_TRUE(parsedOffer->GetMediaSection(2).GetAttributeList().HasAttribute( + SdpAttribute::kRtcpMuxAttribute)); + + SetLocalOffer(offer, CHECK_SUCCESS); + + AddTracks(*mSessionAns, "audio,video"); + SetRemoteOffer(offer, CHECK_SUCCESS); + + std::string answer = CreateAnswer(); + UniquePtr<Sdp> parsedAnswer(Parse(answer)); + + ASSERT_EQ(3U, parsedAnswer->GetMediaSectionCount()); + ASSERT_EQ(SdpMediaSection::kAudio, + parsedAnswer->GetMediaSection(0).GetMediaType()); + ASSERT_EQ(SdpDirectionAttribute::kSendonly, + parsedAnswer->GetMediaSection(0).GetAttributeList().GetDirection()); + ASSERT_EQ(SdpMediaSection::kVideo, + parsedAnswer->GetMediaSection(1).GetMediaType()); + ASSERT_EQ(SdpDirectionAttribute::kSendonly, + parsedAnswer->GetMediaSection(1).GetAttributeList().GetDirection()); + ASSERT_EQ(SdpMediaSection::kVideo, + parsedAnswer->GetMediaSection(2).GetMediaType()); + ASSERT_EQ(SdpDirectionAttribute::kInactive, + parsedAnswer->GetMediaSection(2).GetAttributeList().GetDirection()); + + SetLocalAnswer(answer, CHECK_SUCCESS); + SetRemoteAnswer(answer, CHECK_SUCCESS); + + std::vector<RefPtr<JsepTransceiver>> transceivers( + mSessionOff->GetTransceivers()); + ASSERT_EQ(3U, transceivers.size()); + for (const auto& transceiver : transceivers) { + const auto& msection = + parsedOffer->GetMediaSection(transceiver->GetLevel()); + const auto& ssrcs = msection.GetAttributeList().GetSsrc().mSsrcs; + ASSERT_EQ(1U, ssrcs.size()); + } +} + +TEST_F(JsepSessionTest, OfferAnswerSendOnlyLines) { + AddTracks(*mSessionOff, "audio,video,video"); + + SetDirection(*mSessionOff, 0, SdpDirectionAttribute::kSendonly); + SetDirection(*mSessionOff, 2, SdpDirectionAttribute::kSendonly); + std::string offer = CreateOffer(); + + UniquePtr<Sdp> outputSdp(Parse(offer)); + ASSERT_TRUE(!!outputSdp); + + ASSERT_EQ(3U, outputSdp->GetMediaSectionCount()); + ASSERT_EQ(SdpMediaSection::kAudio, + outputSdp->GetMediaSection(0).GetMediaType()); + ASSERT_EQ(SdpDirectionAttribute::kSendonly, + outputSdp->GetMediaSection(0).GetAttributeList().GetDirection()); + ASSERT_EQ(SdpMediaSection::kVideo, + outputSdp->GetMediaSection(1).GetMediaType()); + ASSERT_EQ(SdpDirectionAttribute::kSendrecv, + outputSdp->GetMediaSection(1).GetAttributeList().GetDirection()); + ASSERT_EQ(SdpMediaSection::kVideo, + outputSdp->GetMediaSection(2).GetMediaType()); + ASSERT_EQ(SdpDirectionAttribute::kSendonly, + outputSdp->GetMediaSection(2).GetAttributeList().GetDirection()); + + ASSERT_TRUE(outputSdp->GetMediaSection(0).GetAttributeList().HasAttribute( + SdpAttribute::kRtcpMuxAttribute)); + ASSERT_TRUE(outputSdp->GetMediaSection(1).GetAttributeList().HasAttribute( + SdpAttribute::kRtcpMuxAttribute)); + ASSERT_TRUE(outputSdp->GetMediaSection(2).GetAttributeList().HasAttribute( + SdpAttribute::kRtcpMuxAttribute)); + + SetLocalOffer(offer, CHECK_SUCCESS); + + AddTracks(*mSessionAns, "audio,video"); + SetRemoteOffer(offer, CHECK_SUCCESS); + + std::string answer = CreateAnswer(); + outputSdp = Parse(answer); + + ASSERT_EQ(3U, outputSdp->GetMediaSectionCount()); + ASSERT_EQ(SdpMediaSection::kAudio, + outputSdp->GetMediaSection(0).GetMediaType()); + ASSERT_EQ(SdpDirectionAttribute::kRecvonly, + outputSdp->GetMediaSection(0).GetAttributeList().GetDirection()); + ASSERT_EQ(SdpMediaSection::kVideo, + outputSdp->GetMediaSection(1).GetMediaType()); + ASSERT_EQ(SdpDirectionAttribute::kSendrecv, + outputSdp->GetMediaSection(1).GetAttributeList().GetDirection()); + ASSERT_EQ(SdpMediaSection::kVideo, + outputSdp->GetMediaSection(2).GetMediaType()); + ASSERT_EQ(SdpDirectionAttribute::kRecvonly, + outputSdp->GetMediaSection(2).GetAttributeList().GetDirection()); +} + +TEST_F(JsepSessionTest, OfferToReceiveAudioNotUsed) { + mSessionOff->AddTransceiver(new JsepTransceiver( + SdpMediaSection::kAudio, mUuidGen, SdpDirectionAttribute::kRecvonly)); + + OfferAnswer(CHECK_SUCCESS); + + UniquePtr<Sdp> offer( + Parse(mSessionOff->GetLocalDescription(kJsepDescriptionCurrent))); + ASSERT_TRUE(offer.get()); + ASSERT_EQ(1U, offer->GetMediaSectionCount()); + ASSERT_EQ(SdpMediaSection::kAudio, offer->GetMediaSection(0).GetMediaType()); + ASSERT_EQ(SdpDirectionAttribute::kRecvonly, + offer->GetMediaSection(0).GetAttributeList().GetDirection()); + + UniquePtr<Sdp> answer( + Parse(mSessionAns->GetLocalDescription(kJsepDescriptionCurrent))); + ASSERT_TRUE(answer.get()); + ASSERT_EQ(1U, answer->GetMediaSectionCount()); + ASSERT_EQ(SdpMediaSection::kAudio, answer->GetMediaSection(0).GetMediaType()); + ASSERT_EQ(SdpDirectionAttribute::kInactive, + answer->GetMediaSection(0).GetAttributeList().GetDirection()); +} + +TEST_F(JsepSessionTest, OfferToReceiveVideoNotUsed) { + mSessionOff->AddTransceiver(new JsepTransceiver( + SdpMediaSection::kVideo, mUuidGen, SdpDirectionAttribute::kRecvonly)); + + OfferAnswer(CHECK_SUCCESS); + + UniquePtr<Sdp> offer( + Parse(mSessionOff->GetLocalDescription(kJsepDescriptionCurrent))); + ASSERT_TRUE(offer.get()); + ASSERT_EQ(1U, offer->GetMediaSectionCount()); + ASSERT_EQ(SdpMediaSection::kVideo, offer->GetMediaSection(0).GetMediaType()); + ASSERT_EQ(SdpDirectionAttribute::kRecvonly, + offer->GetMediaSection(0).GetAttributeList().GetDirection()); + + UniquePtr<Sdp> answer( + Parse(mSessionAns->GetLocalDescription(kJsepDescriptionCurrent))); + ASSERT_TRUE(answer.get()); + ASSERT_EQ(1U, answer->GetMediaSectionCount()); + ASSERT_EQ(SdpMediaSection::kVideo, answer->GetMediaSection(0).GetMediaType()); + ASSERT_EQ(SdpDirectionAttribute::kInactive, + answer->GetMediaSection(0).GetAttributeList().GetDirection()); +} + +TEST_F(JsepSessionTest, CreateOfferNoDatachannelDefault) { + RefPtr<JsepTransceiver> audio( + new JsepTransceiver(SdpMediaSection::kAudio, mUuidGen)); + audio->mSendTrack.UpdateStreamIds( + std::vector<std::string>(1, "offerer_stream")); + mSessionOff->AddTransceiver(audio); + + RefPtr<JsepTransceiver> video( + new JsepTransceiver(SdpMediaSection::kVideo, mUuidGen)); + video->mSendTrack.UpdateStreamIds( + std::vector<std::string>(1, "offerer_stream")); + mSessionOff->AddTransceiver(video); + + std::string offer = CreateOffer(); + + UniquePtr<Sdp> outputSdp(Parse(offer)); + ASSERT_TRUE(!!outputSdp); + + ASSERT_EQ(2U, outputSdp->GetMediaSectionCount()); + ASSERT_EQ(SdpMediaSection::kAudio, + outputSdp->GetMediaSection(0).GetMediaType()); + ASSERT_EQ(SdpMediaSection::kVideo, + outputSdp->GetMediaSection(1).GetMediaType()); +} + +TEST_F(JsepSessionTest, ValidateOfferedVideoCodecParams) { + types.push_back(SdpMediaSection::kAudio); + types.push_back(SdpMediaSection::kVideo); + + RefPtr<JsepTransceiver> audio( + new JsepTransceiver(SdpMediaSection::kAudio, mUuidGen)); + audio->mSendTrack.UpdateStreamIds( + std::vector<std::string>(1, "offerer_stream")); + mSessionOff->AddTransceiver(audio); + + RefPtr<JsepTransceiver> video( + new JsepTransceiver(SdpMediaSection::kVideo, mUuidGen)); + video->mSendTrack.UpdateStreamIds( + std::vector<std::string>(1, "offerer_stream")); + mSessionOff->AddTransceiver(video); + + std::string offer = CreateOffer(); + + UniquePtr<Sdp> outputSdp(Parse(offer)); + ASSERT_TRUE(!!outputSdp); + + ASSERT_EQ(2U, outputSdp->GetMediaSectionCount()); + const auto& video_section = outputSdp->GetMediaSection(1); + ASSERT_EQ(SdpMediaSection::kVideo, video_section.GetMediaType()); + const auto& video_attrs = video_section.GetAttributeList(); + ASSERT_EQ(SdpDirectionAttribute::kSendrecv, video_attrs.GetDirection()); + + ASSERT_EQ(10U, video_section.GetFormats().size()); + ASSERT_EQ("120", video_section.GetFormats()[0]); + ASSERT_EQ("124", video_section.GetFormats()[1]); + ASSERT_EQ("121", video_section.GetFormats()[2]); + ASSERT_EQ("125", video_section.GetFormats()[3]); + ASSERT_EQ("126", video_section.GetFormats()[4]); + ASSERT_EQ("127", video_section.GetFormats()[5]); + ASSERT_EQ("97", video_section.GetFormats()[6]); + ASSERT_EQ("98", video_section.GetFormats()[7]); + ASSERT_EQ("123", video_section.GetFormats()[8]); + ASSERT_EQ("122", video_section.GetFormats()[9]); + + // Validate rtpmap + ASSERT_TRUE(video_attrs.HasAttribute(SdpAttribute::kRtpmapAttribute)); + auto& rtpmaps = video_attrs.GetRtpmap(); + ASSERT_TRUE(rtpmaps.HasEntry("120")); + ASSERT_TRUE(rtpmaps.HasEntry("124")); + ASSERT_TRUE(rtpmaps.HasEntry("121")); + ASSERT_TRUE(rtpmaps.HasEntry("125")); + ASSERT_TRUE(rtpmaps.HasEntry("126")); + ASSERT_TRUE(rtpmaps.HasEntry("127")); + ASSERT_TRUE(rtpmaps.HasEntry("97")); + ASSERT_TRUE(rtpmaps.HasEntry("98")); + ASSERT_TRUE(rtpmaps.HasEntry("123")); + ASSERT_TRUE(rtpmaps.HasEntry("122")); + + const auto& vp8_entry = rtpmaps.GetEntry("120"); + const auto& vp8_rtx_entry = rtpmaps.GetEntry("124"); + const auto& vp9_entry = rtpmaps.GetEntry("121"); + const auto& vp9_rtx_entry = rtpmaps.GetEntry("125"); + const auto& h264_1_entry = rtpmaps.GetEntry("126"); + const auto& h264_1_rtx_entry = rtpmaps.GetEntry("127"); + const auto& h264_0_entry = rtpmaps.GetEntry("97"); + const auto& h264_0_rtx_entry = rtpmaps.GetEntry("98"); + const auto& ulpfec_0_entry = rtpmaps.GetEntry("123"); + const auto& red_0_entry = rtpmaps.GetEntry("122"); + + ASSERT_EQ("VP8", vp8_entry.name); + ASSERT_EQ("rtx", vp8_rtx_entry.name); + ASSERT_EQ("VP9", vp9_entry.name); + ASSERT_EQ("rtx", vp9_rtx_entry.name); + ASSERT_EQ("H264", h264_1_entry.name); + ASSERT_EQ("rtx", h264_1_rtx_entry.name); + ASSERT_EQ("H264", h264_0_entry.name); + ASSERT_EQ("rtx", h264_0_rtx_entry.name); + ASSERT_EQ("red", red_0_entry.name); + ASSERT_EQ("ulpfec", ulpfec_0_entry.name); + + // Validate fmtps + ASSERT_TRUE(video_attrs.HasAttribute(SdpAttribute::kFmtpAttribute)); + auto& fmtps = video_attrs.GetFmtp().mFmtps; + + ASSERT_EQ(9U, fmtps.size()); + + // VP8 + const SdpFmtpAttributeList::Parameters* vp8_params = + video_section.FindFmtp("120"); + ASSERT_TRUE(vp8_params); + ASSERT_EQ(SdpRtpmapAttributeList::kVP8, vp8_params->codec_type); + + auto& parsed_vp8_params = + *static_cast<const SdpFmtpAttributeList::VP8Parameters*>(vp8_params); + + ASSERT_EQ((uint32_t)12288, parsed_vp8_params.max_fs); + ASSERT_EQ((uint32_t)60, parsed_vp8_params.max_fr); + + // VP8 RTX + const SdpFmtpAttributeList::Parameters* vp8_rtx_params = + video_section.FindFmtp("124"); + ASSERT_TRUE(vp8_rtx_params); + ASSERT_EQ(SdpRtpmapAttributeList::kRtx, vp8_rtx_params->codec_type); + + const auto& parsed_vp8_rtx_params = + *static_cast<const SdpFmtpAttributeList::RtxParameters*>(vp8_rtx_params); + + ASSERT_EQ((uint32_t)120, parsed_vp8_rtx_params.apt); + + // VP9 + const SdpFmtpAttributeList::Parameters* vp9_params = + video_section.FindFmtp("121"); + ASSERT_TRUE(vp9_params); + ASSERT_EQ(SdpRtpmapAttributeList::kVP9, vp9_params->codec_type); + + const auto& parsed_vp9_params = + *static_cast<const SdpFmtpAttributeList::VP8Parameters*>(vp9_params); + + ASSERT_EQ((uint32_t)12288, parsed_vp9_params.max_fs); + ASSERT_EQ((uint32_t)60, parsed_vp9_params.max_fr); + + // VP9 RTX + const SdpFmtpAttributeList::Parameters* vp9_rtx_params = + video_section.FindFmtp("125"); + ASSERT_TRUE(vp9_rtx_params); + ASSERT_EQ(SdpRtpmapAttributeList::kRtx, vp9_rtx_params->codec_type); + + const auto& parsed_vp9_rtx_params = + *static_cast<const SdpFmtpAttributeList::RtxParameters*>(vp9_rtx_params); + ASSERT_EQ((uint32_t)121, parsed_vp9_rtx_params.apt); + + // H264 packetization mode 1 + const SdpFmtpAttributeList::Parameters* h264_1_params = + video_section.FindFmtp("126"); + ASSERT_TRUE(h264_1_params); + ASSERT_EQ(SdpRtpmapAttributeList::kH264, h264_1_params->codec_type); + + const auto& parsed_h264_1_params = + *static_cast<const SdpFmtpAttributeList::H264Parameters*>(h264_1_params); + + ASSERT_EQ((uint32_t)0x42e00d, parsed_h264_1_params.profile_level_id); + ASSERT_TRUE(parsed_h264_1_params.level_asymmetry_allowed); + ASSERT_EQ(1U, parsed_h264_1_params.packetization_mode); + + // H264 packetization mode 1 RTX + const SdpFmtpAttributeList::Parameters* h264_1_rtx_params = + video_section.FindFmtp("127"); + ASSERT_TRUE(h264_1_rtx_params); + ASSERT_EQ(SdpRtpmapAttributeList::kRtx, h264_1_rtx_params->codec_type); + + const auto& parsed_h264_1_rtx_params = + *static_cast<const SdpFmtpAttributeList::RtxParameters*>( + h264_1_rtx_params); + + ASSERT_EQ((uint32_t)126, parsed_h264_1_rtx_params.apt); + + // H264 packetization mode 0 + const SdpFmtpAttributeList::Parameters* h264_0_params = + video_section.FindFmtp("97"); + ASSERT_TRUE(h264_0_params); + ASSERT_EQ(SdpRtpmapAttributeList::kH264, h264_0_params->codec_type); + + const auto& parsed_h264_0_params = + *static_cast<const SdpFmtpAttributeList::H264Parameters*>(h264_0_params); + + ASSERT_EQ((uint32_t)0x42e00d, parsed_h264_0_params.profile_level_id); + ASSERT_TRUE(parsed_h264_0_params.level_asymmetry_allowed); + ASSERT_EQ(0U, parsed_h264_0_params.packetization_mode); + + // H264 packetization mode 0 RTX + const SdpFmtpAttributeList::Parameters* h264_0_rtx_params = + video_section.FindFmtp("98"); + ASSERT_TRUE(h264_0_rtx_params); + ASSERT_EQ(SdpRtpmapAttributeList::kRtx, h264_0_rtx_params->codec_type); + + const auto& parsed_h264_0_rtx_params = + *static_cast<const SdpFmtpAttributeList::RtxParameters*>( + h264_0_rtx_params); + + ASSERT_EQ((uint32_t)97, parsed_h264_0_rtx_params.apt); + + // red + const SdpFmtpAttributeList::Parameters* red_params = + video_section.FindFmtp("122"); + ASSERT_TRUE(red_params); + ASSERT_EQ(SdpRtpmapAttributeList::kRed, red_params->codec_type); + + const auto& parsed_red_params = + *static_cast<const SdpFmtpAttributeList::RedParameters*>(red_params); + ASSERT_EQ(5U, parsed_red_params.encodings.size()); + ASSERT_EQ(120, parsed_red_params.encodings[0]); + ASSERT_EQ(121, parsed_red_params.encodings[1]); + ASSERT_EQ(126, parsed_red_params.encodings[2]); + ASSERT_EQ(97, parsed_red_params.encodings[3]); + ASSERT_EQ(123, parsed_red_params.encodings[4]); +} + +TEST_F(JsepSessionTest, ValidateOfferedAudioCodecParams) { + types.push_back(SdpMediaSection::kAudio); + types.push_back(SdpMediaSection::kVideo); + + RefPtr<JsepTransceiver> audio( + new JsepTransceiver(SdpMediaSection::kAudio, mUuidGen)); + audio->mSendTrack.UpdateStreamIds( + std::vector<std::string>(1, "offerer_stream")); + mSessionOff->AddTransceiver(audio); + + RefPtr<JsepTransceiver> video( + new JsepTransceiver(SdpMediaSection::kVideo, mUuidGen)); + video->mSendTrack.UpdateStreamIds( + std::vector<std::string>(1, "offerer_stream")); + mSessionOff->AddTransceiver(video); + + std::string offer = CreateOffer(); + + UniquePtr<Sdp> outputSdp(Parse(offer)); + ASSERT_TRUE(!!outputSdp); + + ASSERT_EQ(2U, outputSdp->GetMediaSectionCount()); + auto& audio_section = outputSdp->GetMediaSection(0); + ASSERT_EQ(SdpMediaSection::kAudio, audio_section.GetMediaType()); + auto& audio_attrs = audio_section.GetAttributeList(); + ASSERT_EQ(SdpDirectionAttribute::kSendrecv, audio_attrs.GetDirection()); + ASSERT_EQ(5U, audio_section.GetFormats().size()); + ASSERT_EQ("109", audio_section.GetFormats()[0]); + ASSERT_EQ("9", audio_section.GetFormats()[1]); + ASSERT_EQ("0", audio_section.GetFormats()[2]); + ASSERT_EQ("8", audio_section.GetFormats()[3]); + ASSERT_EQ("101", audio_section.GetFormats()[4]); + + // Validate rtpmap + ASSERT_TRUE(audio_attrs.HasAttribute(SdpAttribute::kRtpmapAttribute)); + auto& rtpmaps = audio_attrs.GetRtpmap(); + ASSERT_TRUE(rtpmaps.HasEntry("109")); + ASSERT_TRUE(rtpmaps.HasEntry("9")); + ASSERT_TRUE(rtpmaps.HasEntry("0")); + ASSERT_TRUE(rtpmaps.HasEntry("8")); + ASSERT_TRUE(rtpmaps.HasEntry("101")); + + auto& opus_entry = rtpmaps.GetEntry("109"); + auto& g722_entry = rtpmaps.GetEntry("9"); + auto& pcmu_entry = rtpmaps.GetEntry("0"); + auto& pcma_entry = rtpmaps.GetEntry("8"); + auto& telephone_event_entry = rtpmaps.GetEntry("101"); + + ASSERT_EQ("opus", opus_entry.name); + ASSERT_EQ("G722", g722_entry.name); + ASSERT_EQ("PCMU", pcmu_entry.name); + ASSERT_EQ("PCMA", pcma_entry.name); + ASSERT_EQ("telephone-event", telephone_event_entry.name); + + // Validate fmtps + ASSERT_TRUE(audio_attrs.HasAttribute(SdpAttribute::kFmtpAttribute)); + auto& fmtps = audio_attrs.GetFmtp().mFmtps; + + ASSERT_EQ(2U, fmtps.size()); + + // opus + const SdpFmtpAttributeList::Parameters* opus_params = + audio_section.FindFmtp("109"); + ASSERT_TRUE(opus_params); + ASSERT_EQ(SdpRtpmapAttributeList::kOpus, opus_params->codec_type); + + auto& parsed_opus_params = + *static_cast<const SdpFmtpAttributeList::OpusParameters*>(opus_params); + + ASSERT_EQ((uint32_t)48000, parsed_opus_params.maxplaybackrate); + ASSERT_EQ((uint32_t)1, parsed_opus_params.stereo); + ASSERT_EQ((uint32_t)0, parsed_opus_params.useInBandFec); + ASSERT_EQ((uint32_t)0, parsed_opus_params.maxAverageBitrate); + ASSERT_EQ((uint32_t)0, parsed_opus_params.useDTX); + ASSERT_EQ((uint32_t)0, parsed_opus_params.useCbr); + ASSERT_EQ((uint32_t)0, parsed_opus_params.frameSizeMs); + ASSERT_EQ((uint32_t)0, parsed_opus_params.minFrameSizeMs); + ASSERT_EQ((uint32_t)0, parsed_opus_params.maxFrameSizeMs); + + // dtmf + const SdpFmtpAttributeList::Parameters* dtmf_params = + audio_section.FindFmtp("101"); + ASSERT_TRUE(dtmf_params); + ASSERT_EQ(SdpRtpmapAttributeList::kTelephoneEvent, dtmf_params->codec_type); + + auto& parsed_dtmf_params = + *static_cast<const SdpFmtpAttributeList::TelephoneEventParameters*>( + dtmf_params); + + ASSERT_EQ("0-15", parsed_dtmf_params.dtmfTones); +} + +TEST_F(JsepSessionTest, ValidateNoFmtpLineForRedInOfferAndAnswer) { + types.push_back(SdpMediaSection::kAudio); + types.push_back(SdpMediaSection::kVideo); + + AddTracksToStream(*mSessionOff, "offerer_stream", "audio,video"); + + std::string offer = CreateOffer(); + + // look for line with fmtp:122 and remove it + size_t start = offer.find("a=fmtp:122"); + size_t end = offer.find("\r\n", start); + offer.replace(start, end + 2 - start, ""); + + SetLocalOffer(offer); + SetRemoteOffer(offer); + + AddTracksToStream(*mSessionAns, "answerer_stream", "audio,video"); + + std::string answer = CreateAnswer(); + // because parsing will throw out the malformed fmtp, make sure it is not + // in the answer sdp string + ASSERT_EQ(std::string::npos, answer.find("a=fmtp:122")); + + UniquePtr<Sdp> outputSdp(Parse(answer)); + ASSERT_TRUE(!!outputSdp); + + ASSERT_EQ(2U, outputSdp->GetMediaSectionCount()); + auto& video_section = outputSdp->GetMediaSection(1); + ASSERT_EQ(SdpMediaSection::kVideo, video_section.GetMediaType()); + auto& video_attrs = video_section.GetAttributeList(); + ASSERT_EQ(SdpDirectionAttribute::kSendrecv, video_attrs.GetDirection()); + + ASSERT_EQ(10U, video_section.GetFormats().size()); + ASSERT_EQ("120", video_section.GetFormats()[0]); + ASSERT_EQ("124", video_section.GetFormats()[1]); + ASSERT_EQ("121", video_section.GetFormats()[2]); + ASSERT_EQ("125", video_section.GetFormats()[3]); + ASSERT_EQ("126", video_section.GetFormats()[4]); + ASSERT_EQ("127", video_section.GetFormats()[5]); + ASSERT_EQ("97", video_section.GetFormats()[6]); + ASSERT_EQ("98", video_section.GetFormats()[7]); + ASSERT_EQ("123", video_section.GetFormats()[8]); + ASSERT_EQ("122", video_section.GetFormats()[9]); + + // Validate rtpmap + ASSERT_TRUE(video_attrs.HasAttribute(SdpAttribute::kRtpmapAttribute)); + auto& rtpmaps = video_attrs.GetRtpmap(); + ASSERT_TRUE(rtpmaps.HasEntry("120")); + ASSERT_TRUE(rtpmaps.HasEntry("124")); + ASSERT_TRUE(rtpmaps.HasEntry("121")); + ASSERT_TRUE(rtpmaps.HasEntry("125")); + ASSERT_TRUE(rtpmaps.HasEntry("126")); + ASSERT_TRUE(rtpmaps.HasEntry("127")); + ASSERT_TRUE(rtpmaps.HasEntry("97")); + ASSERT_TRUE(rtpmaps.HasEntry("98")); + ASSERT_TRUE(rtpmaps.HasEntry("123")); + ASSERT_TRUE(rtpmaps.HasEntry("122")); + + // Validate fmtps + ASSERT_TRUE(video_attrs.HasAttribute(SdpAttribute::kFmtpAttribute)); + auto& fmtps = video_attrs.GetFmtp().mFmtps; + + ASSERT_EQ(8U, fmtps.size()); + ASSERT_EQ("126", fmtps[0].format); + ASSERT_EQ("97", fmtps[1].format); + ASSERT_EQ("120", fmtps[2].format); + ASSERT_EQ("124", fmtps[3].format); + ASSERT_EQ("121", fmtps[4].format); + ASSERT_EQ("125", fmtps[5].format); + ASSERT_EQ("127", fmtps[6].format); + ASSERT_EQ("98", fmtps[7].format); + + SetLocalAnswer(answer); + SetRemoteAnswer(answer); + + auto offerTransceivers = mSessionOff->GetTransceivers(); + ASSERT_EQ(2U, offerTransceivers.size()); + ASSERT_FALSE(IsNull(offerTransceivers[1]->mSendTrack)); + ASSERT_FALSE(IsNull(offerTransceivers[1]->mRecvTrack)); + ASSERT_TRUE(offerTransceivers[1]->mSendTrack.GetNegotiatedDetails()); + ASSERT_TRUE(offerTransceivers[1]->mRecvTrack.GetNegotiatedDetails()); + ASSERT_EQ(6U, offerTransceivers[1] + ->mSendTrack.GetNegotiatedDetails() + ->GetEncoding(0) + .GetCodecs() + .size()); + ASSERT_EQ(6U, offerTransceivers[1] + ->mRecvTrack.GetNegotiatedDetails() + ->GetEncoding(0) + .GetCodecs() + .size()); + + auto answerTransceivers = mSessionAns->GetTransceivers(); + ASSERT_EQ(2U, answerTransceivers.size()); + ASSERT_FALSE(IsNull(answerTransceivers[1]->mSendTrack)); + ASSERT_FALSE(IsNull(answerTransceivers[1]->mRecvTrack)); + ASSERT_TRUE(answerTransceivers[1]->mSendTrack.GetNegotiatedDetails()); + ASSERT_TRUE(answerTransceivers[1]->mRecvTrack.GetNegotiatedDetails()); + ASSERT_EQ(6U, answerTransceivers[1] + ->mSendTrack.GetNegotiatedDetails() + ->GetEncoding(0) + .GetCodecs() + .size()); + ASSERT_EQ(6U, answerTransceivers[1] + ->mRecvTrack.GetNegotiatedDetails() + ->GetEncoding(0) + .GetCodecs() + .size()); +} + +TEST_F(JsepSessionTest, ValidateAnsweredCodecParamsNoRed) { + // TODO(bug 1099351): Once fixed, we can allow red in this offer, + // which will also cause multiple codecs in answer. For now, + // red/ulpfec for video are behind a pref to mitigate potential for + // errors. + SetCodecEnabled(*mSessionOff, "red", false); + for (auto& codec : mSessionAns->Codecs()) { + if (codec->mName == "H264") { + JsepVideoCodecDescription* h264 = + static_cast<JsepVideoCodecDescription*>(codec.get()); + h264->mProfileLevelId = 0x42a00d; + // Switch up the pts + if (h264->mDefaultPt == "126") { + h264->mDefaultPt = "97"; + } else { + h264->mDefaultPt = "126"; + } + } + } + + types.push_back(SdpMediaSection::kAudio); + types.push_back(SdpMediaSection::kVideo); + + AddTracksToStream(*mSessionOff, "offerer_stream", "audio,video"); + + std::string offer = CreateOffer(); + SetLocalOffer(offer); + SetRemoteOffer(offer); + + AddTracksToStream(*mSessionAns, "answerer_stream", "audio,video"); + + std::string answer = CreateAnswer(); + + UniquePtr<Sdp> outputSdp(Parse(answer)); + ASSERT_TRUE(!!outputSdp); + + ASSERT_EQ(2U, outputSdp->GetMediaSectionCount()); + auto& video_section = outputSdp->GetMediaSection(1); + ASSERT_EQ(SdpMediaSection::kVideo, video_section.GetMediaType()); + auto& video_attrs = video_section.GetAttributeList(); + ASSERT_EQ(SdpDirectionAttribute::kSendrecv, video_attrs.GetDirection()); + + ASSERT_EQ(4U, video_section.GetFormats().size()); + ASSERT_EQ("120", video_section.GetFormats()[0]); + ASSERT_EQ("124", video_section.GetFormats()[1]); + ASSERT_EQ("121", video_section.GetFormats()[2]); + ASSERT_EQ("125", video_section.GetFormats()[3]); + + // Validate rtpmap + ASSERT_TRUE(video_attrs.HasAttribute(SdpAttribute::kRtpmapAttribute)); + auto& rtpmaps = video_attrs.GetRtpmap(); + ASSERT_TRUE(rtpmaps.HasEntry("120")); + ASSERT_TRUE(rtpmaps.HasEntry("121")); + + auto& vp8_entry = rtpmaps.GetEntry("120"); + auto& vp9_entry = rtpmaps.GetEntry("121"); + + ASSERT_EQ("VP8", vp8_entry.name); + ASSERT_EQ("VP9", vp9_entry.name); + + // Validate fmtps + ASSERT_TRUE(video_attrs.HasAttribute(SdpAttribute::kFmtpAttribute)); + auto& fmtps = video_attrs.GetFmtp().mFmtps; + + ASSERT_EQ(4U, fmtps.size()); + + // VP8 + ASSERT_EQ("120", fmtps[0].format); + ASSERT_TRUE(!!fmtps[0].parameters); + ASSERT_EQ(SdpRtpmapAttributeList::kVP8, fmtps[0].parameters->codec_type); + + auto& parsed_vp8_params = + *static_cast<const SdpFmtpAttributeList::VP8Parameters*>( + fmtps[0].parameters.get()); + + ASSERT_EQ((uint32_t)12288, parsed_vp8_params.max_fs); + ASSERT_EQ((uint32_t)60, parsed_vp8_params.max_fr); + + // VP9 + ASSERT_EQ("121", fmtps[2].format); + ASSERT_TRUE(!!fmtps[2].parameters); + ASSERT_EQ(SdpRtpmapAttributeList::kVP9, fmtps[2].parameters->codec_type); + + auto& parsed_vp9_params = + *static_cast<const SdpFmtpAttributeList::VP8Parameters*>( + fmtps[2].parameters.get()); + + ASSERT_EQ((uint32_t)12288, parsed_vp9_params.max_fs); + ASSERT_EQ((uint32_t)60, parsed_vp9_params.max_fr); + + SetLocalAnswer(answer); + SetRemoteAnswer(answer); + + auto offerTransceivers = mSessionOff->GetTransceivers(); + ASSERT_EQ(2U, offerTransceivers.size()); + ASSERT_FALSE(IsNull(offerTransceivers[1]->mSendTrack)); + ASSERT_FALSE(IsNull(offerTransceivers[1]->mRecvTrack)); + ASSERT_TRUE(offerTransceivers[1]->mSendTrack.GetNegotiatedDetails()); + ASSERT_TRUE(offerTransceivers[1]->mRecvTrack.GetNegotiatedDetails()); + ASSERT_EQ(2U, offerTransceivers[1] + ->mSendTrack.GetNegotiatedDetails() + ->GetEncoding(0) + .GetCodecs() + .size()); + ASSERT_EQ(2U, offerTransceivers[1] + ->mRecvTrack.GetNegotiatedDetails() + ->GetEncoding(0) + .GetCodecs() + .size()); + + auto answerTransceivers = mSessionAns->GetTransceivers(); + ASSERT_EQ(2U, answerTransceivers.size()); + ASSERT_FALSE(IsNull(answerTransceivers[1]->mSendTrack)); + ASSERT_FALSE(IsNull(answerTransceivers[1]->mRecvTrack)); + ASSERT_TRUE(answerTransceivers[1]->mSendTrack.GetNegotiatedDetails()); + ASSERT_TRUE(answerTransceivers[1]->mRecvTrack.GetNegotiatedDetails()); + ASSERT_EQ(2U, answerTransceivers[1] + ->mSendTrack.GetNegotiatedDetails() + ->GetEncoding(0) + .GetCodecs() + .size()); + ASSERT_EQ(2U, answerTransceivers[1] + ->mRecvTrack.GetNegotiatedDetails() + ->GetEncoding(0) + .GetCodecs() + .size()); + +#if 0 + // H264 packetization mode 1 + ASSERT_EQ("126", fmtps[1].format); + ASSERT_TRUE(fmtps[1].parameters); + ASSERT_EQ(SdpRtpmapAttributeList::kH264, fmtps[1].parameters->codec_type); + + auto& parsed_h264_1_params = + *static_cast<const SdpFmtpAttributeList::H264Parameters*>( + fmtps[1].parameters.get()); + + ASSERT_EQ((uint32_t)0x42a00d, parsed_h264_1_params.profile_level_id); + ASSERT_TRUE(parsed_h264_1_params.level_asymmetry_allowed); + ASSERT_EQ(1U, parsed_h264_1_params.packetization_mode); + + // H264 packetization mode 0 + ASSERT_EQ("97", fmtps[2].format); + ASSERT_TRUE(fmtps[2].parameters); + ASSERT_EQ(SdpRtpmapAttributeList::kH264, fmtps[2].parameters->codec_type); + + auto& parsed_h264_0_params = + *static_cast<const SdpFmtpAttributeList::H264Parameters*>( + fmtps[2].parameters.get()); + + ASSERT_EQ((uint32_t)0x42a00d, parsed_h264_0_params.profile_level_id); + ASSERT_TRUE(parsed_h264_0_params.level_asymmetry_allowed); + ASSERT_EQ(0U, parsed_h264_0_params.packetization_mode); +#endif +} + +TEST_F(JsepSessionTest, OfferWithBundleGroupNoTags) { + AddTracks(*mSessionOff, "audio,video"); + AddTracks(*mSessionAns, "audio,video"); + + std::string offer = CreateOffer(); + size_t i = offer.find("a=group:BUNDLE"); + offer.insert(i, "a=group:BUNDLE\r\n"); + + SetLocalOffer(offer, CHECK_SUCCESS); + SetRemoteOffer(offer, CHECK_SUCCESS); + std::string answer(CreateAnswer()); +} + +static void Replace(const std::string& toReplace, const std::string& with, + std::string* in) { + size_t pos = in->find(toReplace); + ASSERT_NE(std::string::npos, pos); + in->replace(pos, toReplace.size(), with); +} + +static void ReplaceAll(const std::string& toReplace, const std::string& with, + std::string* in) { + while (in->find(toReplace) != std::string::npos) { + Replace(toReplace, with, in); + } +} + +static void GetCodec(JsepSession& session, size_t transceiverIndex, + sdp::Direction direction, size_t encodingIndex, + size_t codecIndex, + UniquePtr<JsepCodecDescription>* codecOut) { + codecOut->reset(); + ASSERT_LT(transceiverIndex, session.GetTransceivers().size()); + RefPtr<JsepTransceiver> transceiver( + session.GetTransceivers()[transceiverIndex]); + JsepTrack& track = (direction == sdp::kSend) ? transceiver->mSendTrack + : transceiver->mRecvTrack; + ASSERT_TRUE(track.GetNegotiatedDetails()); + ASSERT_LT(encodingIndex, track.GetNegotiatedDetails()->GetEncodingCount()); + ASSERT_LT(codecIndex, track.GetNegotiatedDetails() + ->GetEncoding(encodingIndex) + .GetCodecs() + .size()); + codecOut->reset(track.GetNegotiatedDetails() + ->GetEncoding(encodingIndex) + .GetCodecs()[codecIndex] + ->Clone()); +} + +static void ForceH264(JsepSession& session, uint32_t profileLevelId) { + for (auto& codec : session.Codecs()) { + if (codec->mName == "H264") { + JsepVideoCodecDescription* h264 = + static_cast<JsepVideoCodecDescription*>(codec.get()); + h264->mProfileLevelId = profileLevelId; + } else { + codec->mEnabled = false; + } + } +} + +TEST_F(JsepSessionTest, TestH264Negotiation) { + ForceH264(*mSessionOff, 0x42e00b); + ForceH264(*mSessionAns, 0x42e00d); + + AddTracks(*mSessionOff, "video"); + AddTracks(*mSessionAns, "video"); + + std::string offer(CreateOffer()); + SetLocalOffer(offer, CHECK_SUCCESS); + + SetRemoteOffer(offer, CHECK_SUCCESS); + std::string answer(CreateAnswer()); + + SetRemoteAnswer(answer, CHECK_SUCCESS); + SetLocalAnswer(answer, CHECK_SUCCESS); + + UniquePtr<JsepCodecDescription> offererSendCodec; + GetCodec(*mSessionOff, 0, sdp::kSend, 0, 0, &offererSendCodec); + ASSERT_TRUE(offererSendCodec); + ASSERT_EQ("H264", offererSendCodec->mName); + const JsepVideoCodecDescription* offererVideoSendCodec( + static_cast<const JsepVideoCodecDescription*>(offererSendCodec.get())); + ASSERT_EQ((uint32_t)0x42e00d, offererVideoSendCodec->mProfileLevelId); + + UniquePtr<JsepCodecDescription> offererRecvCodec; + GetCodec(*mSessionOff, 0, sdp::kRecv, 0, 0, &offererRecvCodec); + ASSERT_EQ("H264", offererRecvCodec->mName); + const JsepVideoCodecDescription* offererVideoRecvCodec( + static_cast<const JsepVideoCodecDescription*>(offererRecvCodec.get())); + ASSERT_EQ((uint32_t)0x42e00b, offererVideoRecvCodec->mProfileLevelId); + + UniquePtr<JsepCodecDescription> answererSendCodec; + GetCodec(*mSessionAns, 0, sdp::kSend, 0, 0, &answererSendCodec); + ASSERT_TRUE(answererSendCodec); + ASSERT_EQ("H264", answererSendCodec->mName); + const JsepVideoCodecDescription* answererVideoSendCodec( + static_cast<const JsepVideoCodecDescription*>(answererSendCodec.get())); + ASSERT_EQ((uint32_t)0x42e00b, answererVideoSendCodec->mProfileLevelId); + + UniquePtr<JsepCodecDescription> answererRecvCodec; + GetCodec(*mSessionAns, 0, sdp::kRecv, 0, 0, &answererRecvCodec); + ASSERT_EQ("H264", answererRecvCodec->mName); + const JsepVideoCodecDescription* answererVideoRecvCodec( + static_cast<const JsepVideoCodecDescription*>(answererRecvCodec.get())); + ASSERT_EQ((uint32_t)0x42e00d, answererVideoRecvCodec->mProfileLevelId); +} + +TEST_F(JsepSessionTest, TestH264NegotiationFails) { + ForceH264(*mSessionOff, 0x42000b); + ForceH264(*mSessionAns, 0x42e00d); + + AddTracks(*mSessionOff, "video"); + AddTracks(*mSessionAns, "video"); + + std::string offer(CreateOffer()); + SetLocalOffer(offer, CHECK_SUCCESS); + + SetRemoteOffer(offer, CHECK_SUCCESS); + std::string answer(CreateAnswer()); + + SetRemoteAnswer(answer, CHECK_SUCCESS); + SetLocalAnswer(answer, CHECK_SUCCESS); + + ASSERT_EQ(nullptr, GetNegotiatedTransceiver(*mSessionOff, 0)); + ASSERT_EQ(nullptr, GetNegotiatedTransceiver(*mSessionAns, 0)); +} + +TEST_F(JsepSessionTest, TestH264NegotiationOffererDefault) { + ForceH264(*mSessionOff, 0x42000d); + ForceH264(*mSessionAns, 0x42000d); + + AddTracks(*mSessionOff, "video"); + AddTracks(*mSessionAns, "video"); + + std::string offer(CreateOffer()); + SetLocalOffer(offer, CHECK_SUCCESS); + + Replace("profile-level-id=42000d", "some-unknown-param=0", &offer); + + SetRemoteOffer(offer, CHECK_SUCCESS); + std::string answer(CreateAnswer()); + + SetRemoteAnswer(answer, CHECK_SUCCESS); + SetLocalAnswer(answer, CHECK_SUCCESS); + + UniquePtr<JsepCodecDescription> answererSendCodec; + GetCodec(*mSessionAns, 0, sdp::kSend, 0, 0, &answererSendCodec); + ASSERT_TRUE(answererSendCodec); + ASSERT_EQ("H264", answererSendCodec->mName); + const JsepVideoCodecDescription* answererVideoSendCodec( + static_cast<const JsepVideoCodecDescription*>(answererSendCodec.get())); + ASSERT_EQ((uint32_t)0x420010, answererVideoSendCodec->mProfileLevelId); +} + +TEST_F(JsepSessionTest, TestH264NegotiationOffererNoFmtp) { + ForceH264(*mSessionOff, 0x42000d); + ForceH264(*mSessionAns, 0x42001e); + + AddTracks(*mSessionOff, "video"); + AddTracks(*mSessionAns, "video"); + + std::string offer(CreateOffer()); + SetLocalOffer(offer, CHECK_SUCCESS); + + Replace("a=fmtp", "a=oops", &offer); + + SetRemoteOffer(offer, CHECK_SUCCESS); + std::string answer(CreateAnswer()); + + SetRemoteAnswer(answer, CHECK_SUCCESS); + SetLocalAnswer(answer, CHECK_SUCCESS); + + UniquePtr<JsepCodecDescription> answererSendCodec; + GetCodec(*mSessionAns, 0, sdp::kSend, 0, 0, &answererSendCodec); + ASSERT_TRUE(answererSendCodec); + ASSERT_EQ("H264", answererSendCodec->mName); + const JsepVideoCodecDescription* answererVideoSendCodec( + static_cast<const JsepVideoCodecDescription*>(answererSendCodec.get())); + ASSERT_EQ((uint32_t)0x420010, answererVideoSendCodec->mProfileLevelId); + + UniquePtr<JsepCodecDescription> answererRecvCodec; + GetCodec(*mSessionAns, 0, sdp::kRecv, 0, 0, &answererRecvCodec); + ASSERT_EQ("H264", answererRecvCodec->mName); + const JsepVideoCodecDescription* answererVideoRecvCodec( + static_cast<const JsepVideoCodecDescription*>(answererRecvCodec.get())); + ASSERT_EQ((uint32_t)0x420010, answererVideoRecvCodec->mProfileLevelId); +} + +TEST_F(JsepSessionTest, TestH264LevelAsymmetryDisallowedByOffererWithLowLevel) { + ForceH264(*mSessionOff, 0x42e00b); + ForceH264(*mSessionAns, 0x42e00d); + + AddTracks(*mSessionOff, "video"); + AddTracks(*mSessionAns, "video"); + + std::string offer(CreateOffer()); + SetLocalOffer(offer, CHECK_SUCCESS); + + Replace("level-asymmetry-allowed=1", "level-asymmetry-allowed=0", &offer); + + SetRemoteOffer(offer, CHECK_SUCCESS); + std::string answer(CreateAnswer()); + + SetRemoteAnswer(answer, CHECK_SUCCESS); + SetLocalAnswer(answer, CHECK_SUCCESS); + + // Offerer doesn't know about the shenanigans we've pulled here, so will + // behave normally, and we test the normal behavior elsewhere. + + UniquePtr<JsepCodecDescription> answererSendCodec; + GetCodec(*mSessionAns, 0, sdp::kSend, 0, 0, &answererSendCodec); + ASSERT_TRUE(answererSendCodec); + ASSERT_EQ("H264", answererSendCodec->mName); + const JsepVideoCodecDescription* answererVideoSendCodec( + static_cast<const JsepVideoCodecDescription*>(answererSendCodec.get())); + ASSERT_EQ((uint32_t)0x42e00b, answererVideoSendCodec->mProfileLevelId); + + UniquePtr<JsepCodecDescription> answererRecvCodec; + GetCodec(*mSessionAns, 0, sdp::kRecv, 0, 0, &answererRecvCodec); + ASSERT_EQ("H264", answererRecvCodec->mName); + const JsepVideoCodecDescription* answererVideoRecvCodec( + static_cast<const JsepVideoCodecDescription*>(answererRecvCodec.get())); + ASSERT_EQ((uint32_t)0x42e00b, answererVideoRecvCodec->mProfileLevelId); +} + +TEST_F(JsepSessionTest, + TestH264LevelAsymmetryDisallowedByOffererWithHighLevel) { + ForceH264(*mSessionOff, 0x42e00d); + ForceH264(*mSessionAns, 0x42e00b); + + AddTracks(*mSessionOff, "video"); + AddTracks(*mSessionAns, "video"); + + std::string offer(CreateOffer()); + SetLocalOffer(offer, CHECK_SUCCESS); + + Replace("level-asymmetry-allowed=1", "level-asymmetry-allowed=0", &offer); + + SetRemoteOffer(offer, CHECK_SUCCESS); + std::string answer(CreateAnswer()); + + SetRemoteAnswer(answer, CHECK_SUCCESS); + SetLocalAnswer(answer, CHECK_SUCCESS); + + // Offerer doesn't know about the shenanigans we've pulled here, so will + // behave normally, and we test the normal behavior elsewhere. + + UniquePtr<JsepCodecDescription> answererSendCodec; + GetCodec(*mSessionAns, 0, sdp::kSend, 0, 0, &answererSendCodec); + ASSERT_TRUE(answererSendCodec); + ASSERT_EQ("H264", answererSendCodec->mName); + const JsepVideoCodecDescription* answererVideoSendCodec( + static_cast<const JsepVideoCodecDescription*>(answererSendCodec.get())); + ASSERT_EQ((uint32_t)0x42e00b, answererVideoSendCodec->mProfileLevelId); + + UniquePtr<JsepCodecDescription> answererRecvCodec; + GetCodec(*mSessionAns, 0, sdp::kRecv, 0, 0, &answererRecvCodec); + ASSERT_EQ("H264", answererRecvCodec->mName); + const JsepVideoCodecDescription* answererVideoRecvCodec( + static_cast<const JsepVideoCodecDescription*>(answererRecvCodec.get())); + ASSERT_EQ((uint32_t)0x42e00b, answererVideoRecvCodec->mProfileLevelId); +} + +TEST_F(JsepSessionTest, + TestH264LevelAsymmetryDisallowedByAnswererWithLowLevel) { + ForceH264(*mSessionOff, 0x42e00d); + ForceH264(*mSessionAns, 0x42e00b); + + AddTracks(*mSessionOff, "video"); + AddTracks(*mSessionAns, "video"); + + std::string offer(CreateOffer()); + SetLocalOffer(offer, CHECK_SUCCESS); + SetRemoteOffer(offer, CHECK_SUCCESS); + std::string answer(CreateAnswer()); + + Replace("level-asymmetry-allowed=1", "level-asymmetry-allowed=0", &answer); + + SetRemoteAnswer(answer, CHECK_SUCCESS); + SetLocalAnswer(answer, CHECK_SUCCESS); + + UniquePtr<JsepCodecDescription> offererSendCodec; + GetCodec(*mSessionOff, 0, sdp::kSend, 0, 0, &offererSendCodec); + ASSERT_TRUE(offererSendCodec); + ASSERT_EQ("H264", offererSendCodec->mName); + const JsepVideoCodecDescription* offererVideoSendCodec( + static_cast<const JsepVideoCodecDescription*>(offererSendCodec.get())); + ASSERT_EQ((uint32_t)0x42e00b, offererVideoSendCodec->mProfileLevelId); + + UniquePtr<JsepCodecDescription> offererRecvCodec; + GetCodec(*mSessionOff, 0, sdp::kRecv, 0, 0, &offererRecvCodec); + ASSERT_EQ("H264", offererRecvCodec->mName); + const JsepVideoCodecDescription* offererVideoRecvCodec( + static_cast<const JsepVideoCodecDescription*>(offererRecvCodec.get())); + ASSERT_EQ((uint32_t)0x42e00b, offererVideoRecvCodec->mProfileLevelId); + + // Answerer doesn't know we've pulled these shenanigans, it should act as if + // it did not set level-asymmetry-required, and we already check that + // elsewhere +} + +TEST_F(JsepSessionTest, + TestH264LevelAsymmetryDisallowedByAnswererWithHighLevel) { + ForceH264(*mSessionOff, 0x42e00b); + ForceH264(*mSessionAns, 0x42e00d); + + AddTracks(*mSessionOff, "video"); + AddTracks(*mSessionAns, "video"); + + std::string offer(CreateOffer()); + SetLocalOffer(offer, CHECK_SUCCESS); + SetRemoteOffer(offer, CHECK_SUCCESS); + std::string answer(CreateAnswer()); + + Replace("level-asymmetry-allowed=1", "level-asymmetry-allowed=0", &answer); + + SetRemoteAnswer(answer, CHECK_SUCCESS); + SetLocalAnswer(answer, CHECK_SUCCESS); + + UniquePtr<JsepCodecDescription> offererSendCodec; + GetCodec(*mSessionOff, 0, sdp::kSend, 0, 0, &offererSendCodec); + ASSERT_TRUE(offererSendCodec); + ASSERT_EQ("H264", offererSendCodec->mName); + const JsepVideoCodecDescription* offererVideoSendCodec( + static_cast<const JsepVideoCodecDescription*>(offererSendCodec.get())); + ASSERT_EQ((uint32_t)0x42e00b, offererVideoSendCodec->mProfileLevelId); + + UniquePtr<JsepCodecDescription> offererRecvCodec; + GetCodec(*mSessionOff, 0, sdp::kRecv, 0, 0, &offererRecvCodec); + ASSERT_EQ("H264", offererRecvCodec->mName); + const JsepVideoCodecDescription* offererVideoRecvCodec( + static_cast<const JsepVideoCodecDescription*>(offererRecvCodec.get())); + ASSERT_EQ((uint32_t)0x42e00b, offererVideoRecvCodec->mProfileLevelId); + + // Answerer doesn't know we've pulled these shenanigans, it should act as if + // it did not set level-asymmetry-required, and we already check that + // elsewhere +} + +TEST_P(JsepSessionTest, TestRejectMline) { + // We need to do this before adding tracks + types = BuildTypes(GetParam()); + + SdpMediaSection::MediaType type = types.front(); + + switch (type) { + case SdpMediaSection::kAudio: + // Sabotage audio + EnsureNegotiationFailure(types.front(), "opus"); + break; + case SdpMediaSection::kVideo: + // Sabotage video + EnsureNegotiationFailure(types.front(), "H264"); + break; + case SdpMediaSection::kApplication: + // Sabotage datachannel + EnsureNegotiationFailure(types.front(), "webrtc-datachannel"); + break; + default: + ASSERT_TRUE(false) + << "Unknown media type"; + } + + AddTracks(*mSessionOff); + AddTracks(*mSessionAns); + + std::string offer = CreateOffer(); + mSessionOff->SetLocalDescription(kJsepSdpOffer, offer); + mSessionAns->SetRemoteDescription(kJsepSdpOffer, offer); + + std::string answer = CreateAnswer(); + + UniquePtr<Sdp> outputSdp(Parse(answer)); + ASSERT_TRUE(!!outputSdp); + + ASSERT_NE(0U, outputSdp->GetMediaSectionCount()); + SdpMediaSection* failed_section = nullptr; + + for (size_t i = 0; i < outputSdp->GetMediaSectionCount(); ++i) { + if (outputSdp->GetMediaSection(i).GetMediaType() == type) { + failed_section = &outputSdp->GetMediaSection(i); + } + } + + ASSERT_TRUE(failed_section) + << "Failed type was entirely absent from SDP"; + auto& failed_attrs = failed_section->GetAttributeList(); + ASSERT_EQ(SdpDirectionAttribute::kInactive, failed_attrs.GetDirection()); + ASSERT_EQ(0U, failed_section->GetPort()); + + mSessionAns->SetLocalDescription(kJsepSdpAnswer, answer); + mSessionOff->SetRemoteDescription(kJsepSdpAnswer, answer); + + size_t numRejected = std::count(types.begin(), types.end(), type); + size_t numAccepted = types.size() - numRejected; + + if (type == SdpMediaSection::MediaType::kApplication) { + ASSERT_TRUE(GetDatachannelTransceiver(*mSessionOff)); + ASSERT_FALSE( + GetDatachannelTransceiver(*mSessionOff)->mRecvTrack.GetActive()); + ASSERT_TRUE(GetDatachannelTransceiver(*mSessionAns)); + ASSERT_FALSE( + GetDatachannelTransceiver(*mSessionAns)->mRecvTrack.GetActive()); + } else { + ASSERT_EQ(types.size(), GetLocalTracks(*mSessionOff).size()); + ASSERT_EQ(numAccepted, GetRemoteTracks(*mSessionOff).size()); + + ASSERT_EQ(types.size(), GetLocalTracks(*mSessionAns).size()); + ASSERT_EQ(types.size(), GetRemoteTracks(*mSessionAns).size()); + } +} + +TEST_F(JsepSessionTest, NegotiationNoMlines) { OfferAnswer(); } + +TEST_F(JsepSessionTest, TestIceLite) { + AddTracks(*mSessionOff, "audio"); + AddTracks(*mSessionAns, "audio"); + std::string offer = CreateOffer(); + SetLocalOffer(offer, CHECK_SUCCESS); + + UniquePtr<Sdp> parsedOffer(Parse(offer)); + parsedOffer->GetAttributeList().SetAttribute( + new SdpFlagAttribute(SdpAttribute::kIceLiteAttribute)); + + std::ostringstream os; + parsedOffer->Serialize(os); + SetRemoteOffer(os.str(), CHECK_SUCCESS); + + ASSERT_TRUE(mSessionAns->RemoteIsIceLite()); + ASSERT_FALSE(mSessionOff->RemoteIsIceLite()); +} + +TEST_F(JsepSessionTest, TestIceOptions) { + AddTracks(*mSessionOff, "audio"); + AddTracks(*mSessionAns, "audio"); + std::string offer = CreateOffer(); + SetLocalOffer(offer, CHECK_SUCCESS); + SetRemoteOffer(offer, CHECK_SUCCESS); + std::string answer = CreateAnswer(); + SetLocalAnswer(answer, CHECK_SUCCESS); + SetRemoteAnswer(answer, CHECK_SUCCESS); + + ASSERT_EQ(1U, mSessionOff->GetIceOptions().size()); + ASSERT_EQ("trickle", mSessionOff->GetIceOptions()[0]); + + ASSERT_EQ(1U, mSessionAns->GetIceOptions().size()); + ASSERT_EQ("trickle", mSessionAns->GetIceOptions()[0]); +} + +TEST_F(JsepSessionTest, TestIceRestart) { + AddTracks(*mSessionOff, "audio"); + AddTracks(*mSessionAns, "audio"); + std::string offer = CreateOffer(); + SetLocalOffer(offer, CHECK_SUCCESS); + SetRemoteOffer(offer, CHECK_SUCCESS); + std::string answer = CreateAnswer(); + SetLocalAnswer(answer, CHECK_SUCCESS); + SetRemoteAnswer(answer, CHECK_SUCCESS); + + JsepOfferOptions options; + options.mIceRestart = Some(true); + + std::string reoffer = CreateOffer(Some(options)); + SetLocalOffer(reoffer, CHECK_SUCCESS); + SetRemoteOffer(reoffer, CHECK_SUCCESS); + std::string reanswer = CreateAnswer(); + SetLocalAnswer(reanswer, CHECK_SUCCESS); + SetRemoteAnswer(reanswer, CHECK_SUCCESS); + + UniquePtr<Sdp> parsedOffer(Parse(offer)); + ASSERT_EQ(1U, parsedOffer->GetMediaSectionCount()); + UniquePtr<Sdp> parsedReoffer(Parse(reoffer)); + ASSERT_EQ(1U, parsedReoffer->GetMediaSectionCount()); + + UniquePtr<Sdp> parsedAnswer(Parse(answer)); + ASSERT_EQ(1U, parsedAnswer->GetMediaSectionCount()); + UniquePtr<Sdp> parsedReanswer(Parse(reanswer)); + ASSERT_EQ(1U, parsedReanswer->GetMediaSectionCount()); + + // verify ice pwd/ufrag are present in offer/answer and reoffer/reanswer + auto& offerMediaAttrs = parsedOffer->GetMediaSection(0).GetAttributeList(); + ASSERT_TRUE(offerMediaAttrs.HasAttribute(SdpAttribute::kIcePwdAttribute)); + ASSERT_TRUE(offerMediaAttrs.HasAttribute(SdpAttribute::kIceUfragAttribute)); + + auto& reofferMediaAttrs = + parsedReoffer->GetMediaSection(0).GetAttributeList(); + ASSERT_TRUE(reofferMediaAttrs.HasAttribute(SdpAttribute::kIcePwdAttribute)); + ASSERT_TRUE(reofferMediaAttrs.HasAttribute(SdpAttribute::kIceUfragAttribute)); + + auto& answerMediaAttrs = parsedAnswer->GetMediaSection(0).GetAttributeList(); + ASSERT_TRUE(answerMediaAttrs.HasAttribute(SdpAttribute::kIcePwdAttribute)); + ASSERT_TRUE(answerMediaAttrs.HasAttribute(SdpAttribute::kIceUfragAttribute)); + + auto& reanswerMediaAttrs = + parsedReanswer->GetMediaSection(0).GetAttributeList(); + ASSERT_TRUE(reanswerMediaAttrs.HasAttribute(SdpAttribute::kIcePwdAttribute)); + ASSERT_TRUE( + reanswerMediaAttrs.HasAttribute(SdpAttribute::kIceUfragAttribute)); + + // make sure offer/reoffer ice pwd/ufrag changed on ice restart + ASSERT_NE(offerMediaAttrs.GetIcePwd().c_str(), + reofferMediaAttrs.GetIcePwd().c_str()); + ASSERT_NE(offerMediaAttrs.GetIceUfrag().c_str(), + reofferMediaAttrs.GetIceUfrag().c_str()); + + // make sure answer/reanswer ice pwd/ufrag changed on ice restart + ASSERT_NE(answerMediaAttrs.GetIcePwd().c_str(), + reanswerMediaAttrs.GetIcePwd().c_str()); + ASSERT_NE(answerMediaAttrs.GetIceUfrag().c_str(), + reanswerMediaAttrs.GetIceUfrag().c_str()); + + auto offererTransceivers = mSessionOff->GetTransceivers(); + auto answererTransceivers = mSessionAns->GetTransceivers(); + ASSERT_EQ(reofferMediaAttrs.GetIceUfrag(), + offererTransceivers[0]->mTransport.mLocalUfrag); + ASSERT_EQ(reofferMediaAttrs.GetIceUfrag(), + answererTransceivers[0]->mTransport.mIce->GetUfrag()); + ASSERT_EQ(reofferMediaAttrs.GetIcePwd(), + offererTransceivers[0]->mTransport.mLocalPwd); + ASSERT_EQ(reofferMediaAttrs.GetIcePwd(), + answererTransceivers[0]->mTransport.mIce->GetPassword()); + + ASSERT_EQ(reanswerMediaAttrs.GetIceUfrag(), + answererTransceivers[0]->mTransport.mLocalUfrag); + ASSERT_EQ(reanswerMediaAttrs.GetIceUfrag(), + offererTransceivers[0]->mTransport.mIce->GetUfrag()); + ASSERT_EQ(reanswerMediaAttrs.GetIcePwd(), + answererTransceivers[0]->mTransport.mLocalPwd); + ASSERT_EQ(reanswerMediaAttrs.GetIcePwd(), + offererTransceivers[0]->mTransport.mIce->GetPassword()); +} + +TEST_F(JsepSessionTest, TestAnswererIndicatingIceRestart) { + AddTracks(*mSessionOff, "audio"); + AddTracks(*mSessionAns, "audio"); + std::string offer = CreateOffer(); + SetLocalOffer(offer, CHECK_SUCCESS); + SetRemoteOffer(offer, CHECK_SUCCESS); + std::string answer = CreateAnswer(); + SetLocalAnswer(answer, CHECK_SUCCESS); + SetRemoteAnswer(answer, CHECK_SUCCESS); + + // reoffer, but we'll improperly indicate an ice restart in the answer by + // modifying the ice pwd and ufrag + std::string reoffer = CreateOffer(); + SetLocalOffer(reoffer, CHECK_SUCCESS); + SetRemoteOffer(reoffer, CHECK_SUCCESS); + std::string reanswer = CreateAnswer(); + + // change the ice pwd and ufrag + ReplaceInSdp(&reanswer, "a=ice-ufrag:", "a=ice-ufrag:bad-"); + ReplaceInSdp(&reanswer, "a=ice-pwd:", "a=ice-pwd:bad-"); + SetLocalAnswer(reanswer, CHECK_SUCCESS); + JsepSession::Result result = + mSessionOff->SetRemoteDescription(kJsepSdpAnswer, reanswer); + ASSERT_EQ(dom::PCError::InvalidAccessError, *result.mError); +} + +TEST_F(JsepSessionTest, TestExtmap) { + AddTracks(*mSessionOff, "audio"); + AddTracks(*mSessionAns, "audio"); + // ssrc-audio-level will be extmap 1 for both + // csrc-audio-level will be 2 for both + // mid will be 3 for both + // video related extensions take 4 - 7 + mSessionOff->AddAudioRtpExtension("foo"); // Default mapping of 8 + mSessionOff->AddAudioRtpExtension("bar"); // Default mapping of 9 + mSessionAns->AddAudioRtpExtension("bar"); // Default mapping of 8 + std::string offer = CreateOffer(); + SetLocalOffer(offer, CHECK_SUCCESS); + SetRemoteOffer(offer, CHECK_SUCCESS); + std::string answer = CreateAnswer(); + SetLocalAnswer(answer, CHECK_SUCCESS); + SetRemoteAnswer(answer, CHECK_SUCCESS); + + UniquePtr<Sdp> parsedOffer(Parse(offer)); + ASSERT_EQ(1U, parsedOffer->GetMediaSectionCount()); + + auto& offerMediaAttrs = parsedOffer->GetMediaSection(0).GetAttributeList(); + ASSERT_TRUE(offerMediaAttrs.HasAttribute(SdpAttribute::kExtmapAttribute)); + auto& offerExtmap = offerMediaAttrs.GetExtmap().mExtmaps; + ASSERT_EQ(5U, offerExtmap.size()); + ASSERT_EQ("urn:ietf:params:rtp-hdrext:ssrc-audio-level", + offerExtmap[0].extensionname); + ASSERT_EQ(1U, offerExtmap[0].entry); + ASSERT_EQ("urn:ietf:params:rtp-hdrext:csrc-audio-level", + offerExtmap[1].extensionname); + ASSERT_EQ(2U, offerExtmap[1].entry); + ASSERT_EQ("urn:ietf:params:rtp-hdrext:sdes:mid", + offerExtmap[2].extensionname); + ASSERT_EQ(3U, offerExtmap[2].entry); + ASSERT_EQ("foo", offerExtmap[3].extensionname); + ASSERT_EQ(8U, offerExtmap[3].entry); + ASSERT_EQ("bar", offerExtmap[4].extensionname); + ASSERT_EQ(9U, offerExtmap[4].entry); + + UniquePtr<Sdp> parsedAnswer(Parse(answer)); + ASSERT_EQ(1U, parsedAnswer->GetMediaSectionCount()); + + auto& answerMediaAttrs = parsedAnswer->GetMediaSection(0).GetAttributeList(); + ASSERT_TRUE(answerMediaAttrs.HasAttribute(SdpAttribute::kExtmapAttribute)); + auto& answerExtmap = answerMediaAttrs.GetExtmap().mExtmaps; + ASSERT_EQ(3U, answerExtmap.size()); + ASSERT_EQ("urn:ietf:params:rtp-hdrext:ssrc-audio-level", + answerExtmap[0].extensionname); + ASSERT_EQ(1U, answerExtmap[0].entry); + ASSERT_EQ("urn:ietf:params:rtp-hdrext:sdes:mid", + answerExtmap[1].extensionname); + ASSERT_EQ(3U, answerExtmap[1].entry); + // We ensure that the entry for "bar" matches what was in the offer + ASSERT_EQ("bar", answerExtmap[2].extensionname); + ASSERT_EQ(9U, answerExtmap[2].entry); +} + +TEST_F(JsepSessionTest, TestExtmapDefaults) { + types.push_back(SdpMediaSection::kAudio); + types.push_back(SdpMediaSection::kVideo); + AddTracks(*mSessionOff, "audio,video"); + + std::string offer = CreateOffer(); + SetLocalOffer(offer, CHECK_SUCCESS); + SetRemoteOffer(offer, CHECK_SUCCESS); + + std::string answer = CreateAnswer(); + SetLocalAnswer(answer, CHECK_SUCCESS); + SetRemoteAnswer(answer, CHECK_SUCCESS); + + UniquePtr<Sdp> parsedOffer(Parse(offer)); + ASSERT_EQ(2U, parsedOffer->GetMediaSectionCount()); + + auto& offerAudioMediaAttrs = + parsedOffer->GetMediaSection(0).GetAttributeList(); + ASSERT_TRUE( + offerAudioMediaAttrs.HasAttribute(SdpAttribute::kExtmapAttribute)); + auto& offerAudioExtmap = offerAudioMediaAttrs.GetExtmap().mExtmaps; + ASSERT_EQ(3U, offerAudioExtmap.size()); + + ASSERT_EQ("urn:ietf:params:rtp-hdrext:ssrc-audio-level", + offerAudioExtmap[0].extensionname); + ASSERT_EQ(1U, offerAudioExtmap[0].entry); + ASSERT_EQ("urn:ietf:params:rtp-hdrext:csrc-audio-level", + offerAudioExtmap[1].extensionname); + ASSERT_EQ(2U, offerAudioExtmap[1].entry); + ASSERT_EQ("urn:ietf:params:rtp-hdrext:sdes:mid", + offerAudioExtmap[2].extensionname); + + auto& offerVideoMediaAttrs = + parsedOffer->GetMediaSection(1).GetAttributeList(); + ASSERT_TRUE( + offerVideoMediaAttrs.HasAttribute(SdpAttribute::kExtmapAttribute)); + auto& offerVideoExtmap = offerVideoMediaAttrs.GetExtmap().mExtmaps; + ASSERT_EQ(5U, offerVideoExtmap.size()); + + ASSERT_EQ(3U, offerVideoExtmap[0].entry); + ASSERT_EQ("urn:ietf:params:rtp-hdrext:sdes:mid", + offerVideoExtmap[0].extensionname); + ASSERT_EQ("http://www.webrtc.org/experiments/rtp-hdrext/abs-send-time", + offerVideoExtmap[1].extensionname); + ASSERT_EQ(4U, offerVideoExtmap[1].entry); + ASSERT_EQ("urn:ietf:params:rtp-hdrext:toffset", + offerVideoExtmap[2].extensionname); + ASSERT_EQ(5U, offerVideoExtmap[2].entry); + ASSERT_EQ("http://www.webrtc.org/experiments/rtp-hdrext/playout-delay", + offerVideoExtmap[3].extensionname); + ASSERT_EQ(6U, offerVideoExtmap[3].entry); + ASSERT_EQ( + "http://www.ietf.org/id/draft-holmer-rmcat-transport-wide-cc-" + "extensions-01", + offerVideoExtmap[4].extensionname); + ASSERT_EQ(7U, offerVideoExtmap[4].entry); + + UniquePtr<Sdp> parsedAnswer(Parse(answer)); + ASSERT_EQ(2U, parsedAnswer->GetMediaSectionCount()); + + auto& answerAudioMediaAttrs = + parsedAnswer->GetMediaSection(0).GetAttributeList(); + ASSERT_TRUE( + answerAudioMediaAttrs.HasAttribute(SdpAttribute::kExtmapAttribute)); + auto& answerAudioExtmap = answerAudioMediaAttrs.GetExtmap().mExtmaps; + ASSERT_EQ(2U, answerAudioExtmap.size()); + + ASSERT_EQ("urn:ietf:params:rtp-hdrext:ssrc-audio-level", + answerAudioExtmap[0].extensionname); + ASSERT_EQ(1U, answerAudioExtmap[0].entry); + ASSERT_EQ("urn:ietf:params:rtp-hdrext:sdes:mid", + answerAudioExtmap[1].extensionname); + ASSERT_EQ(3U, answerAudioExtmap[1].entry); + + auto& answerVideoMediaAttrs = + parsedAnswer->GetMediaSection(1).GetAttributeList(); + ASSERT_TRUE( + answerVideoMediaAttrs.HasAttribute(SdpAttribute::kExtmapAttribute)); + auto& answerVideoExtmap = answerVideoMediaAttrs.GetExtmap().mExtmaps; + ASSERT_EQ(4U, answerVideoExtmap.size()); + + ASSERT_EQ(3U, answerVideoExtmap[0].entry); + ASSERT_EQ("urn:ietf:params:rtp-hdrext:sdes:mid", + answerVideoExtmap[0].extensionname); + ASSERT_EQ("http://www.webrtc.org/experiments/rtp-hdrext/abs-send-time", + answerVideoExtmap[1].extensionname); + ASSERT_EQ(4U, answerVideoExtmap[1].entry); + ASSERT_EQ("urn:ietf:params:rtp-hdrext:toffset", + answerVideoExtmap[2].extensionname); + ASSERT_EQ(5U, answerVideoExtmap[2].entry); + ASSERT_EQ( + "http://www.ietf.org/id/draft-holmer-rmcat-transport-wide-cc-" + "extensions-01", + answerVideoExtmap[3].extensionname); + ASSERT_EQ(7U, answerVideoExtmap[3].entry); +} + +TEST_F(JsepSessionTest, TestExtmapWithDuplicates) { + AddTracks(*mSessionOff, "audio"); + AddTracks(*mSessionAns, "audio"); + // ssrc-audio-level will be extmap 1 for both + // csrc-audio-level will be 2 for both + // mid will be 3 for both + // video related extensions take 4 - 7 + mSessionOff->AddAudioRtpExtension("foo"); // Default mapping of 8 + mSessionOff->AddAudioRtpExtension("bar"); // Default mapping of 9 + mSessionOff->AddAudioRtpExtension("bar"); // Should be ignored + mSessionOff->AddAudioRtpExtension("bar"); // Should be ignored + mSessionOff->AddAudioRtpExtension("baz"); // Default mapping of 10 + mSessionOff->AddAudioRtpExtension("bar"); // Should be ignored + + std::string offer = CreateOffer(); + UniquePtr<Sdp> parsedOffer(Parse(offer)); + ASSERT_EQ(1U, parsedOffer->GetMediaSectionCount()); + + auto& offerMediaAttrs = parsedOffer->GetMediaSection(0).GetAttributeList(); + ASSERT_TRUE(offerMediaAttrs.HasAttribute(SdpAttribute::kExtmapAttribute)); + auto& offerExtmap = offerMediaAttrs.GetExtmap().mExtmaps; + ASSERT_EQ(6U, offerExtmap.size()); + ASSERT_EQ("urn:ietf:params:rtp-hdrext:ssrc-audio-level", + offerExtmap[0].extensionname); + ASSERT_EQ(1U, offerExtmap[0].entry); + ASSERT_EQ("urn:ietf:params:rtp-hdrext:csrc-audio-level", + offerExtmap[1].extensionname); + ASSERT_EQ(2U, offerExtmap[1].entry); + ASSERT_EQ("urn:ietf:params:rtp-hdrext:sdes:mid", + offerExtmap[2].extensionname); + ASSERT_EQ(3U, offerExtmap[2].entry); + ASSERT_EQ("foo", offerExtmap[3].extensionname); + ASSERT_EQ(8U, offerExtmap[3].entry); + ASSERT_EQ("bar", offerExtmap[4].extensionname); + ASSERT_EQ(9U, offerExtmap[4].entry); + ASSERT_EQ("baz", offerExtmap[5].extensionname); + ASSERT_EQ(10U, offerExtmap[5].entry); +} + +TEST_F(JsepSessionTest, TestExtmapZeroId) { + AddTracks(*mSessionOff, "video"); + AddTracks(*mSessionAns, "video"); + + std::string sdp = + "v=0\r\n" + "o=- 6 2 IN IP4 1r\r\n" + "t=0 0a\r\n" + "a=ice-ufrag:Xp\r\n" + "a=ice-pwd:he\r\n" + "a=setup:actpass\r\n" + "a=fingerprint:sha-256 " + "DC:FC:25:56:2B:88:77:2F:E4:FA:97:4E:2E:F1:D6:34:A6:A0:11:E2:E4:38:B3:98:" + "08:D2:F7:9D:F5:E2:C1:15\r\n" + "m=video 9 UDP/TLS/RTP/SAVPF 100\r\n" + "c=IN IP4 0\r\n" + "a=rtpmap:100 VP8/90000\r\n" + "a=extmap:0 urn:ietf:params:rtp-hdrext:toffset\r\n"; + auto result = mSessionAns->SetRemoteDescription(kJsepSdpOffer, sdp); + ASSERT_TRUE(result.mError == Some(dom::PCError::OperationError)); + ASSERT_EQ( + "Description contains invalid extension id 0 on level 0 which is" + " unsupported until 2-byte rtp header extensions are supported in" + " webrtc.org", + mSessionAns->GetLastError()); +} + +TEST_F(JsepSessionTest, TestExtmapInvalidId) { + AddTracks(*mSessionAns, "video"); + + std::string sdp = + "v=0\r\n" + "o=- 6 2 IN IP4 1r\r\n" + "t=0 0a\r\n" + "a=ice-ufrag:Xp\r\n" + "a=ice-pwd:he\r\n" + "a=setup:actpass\r\n" + "a=fingerprint:sha-256 " + "DC:FC:25:56:2B:88:77:2F:E4:FA:97:4E:2E:F1:D6:34:A6:A0:11:E2:E4:38:B3:98:" + "08:D2:F7:9D:F5:E2:C1:15\r\n" + "m=video 9 UDP/TLS/RTP/SAVPF 100\r\n" + "c=IN IP4 0\r\n" + "a=rtpmap:100 VP8/90000\r\n" + "a=extmap:15 urn:ietf:params:rtp-hdrext:toffset\r\n"; + auto result = mSessionAns->SetRemoteDescription(kJsepSdpOffer, sdp); + ASSERT_TRUE(result.mError == Some(dom::PCError::OperationError)); + ASSERT_EQ( + "Description contains invalid extension id 15 on level 0 which is" + " unsupported until 2-byte rtp header extensions are supported in" + " webrtc.org", + mSessionAns->GetLastError()); +} + +TEST_F(JsepSessionTest, TestExtmapDuplicateId) { + AddTracks(*mSessionAns, "video"); + + std::string sdp = + "v=0\r\n" + "o=- 6 2 IN IP4 1r\r\n" + "t=0 0a\r\n" + "a=ice-ufrag:Xp\r\n" + "a=ice-pwd:he\r\n" + "a=setup:actpass\r\n" + "a=fingerprint:sha-256 " + "DC:FC:25:56:2B:88:77:2F:E4:FA:97:4E:2E:F1:D6:34:A6:A0:11:E2:E4:38:B3:98:" + "08:D2:F7:9D:F5:E2:C1:15\r\n" + "m=video 9 UDP/TLS/RTP/SAVPF 100\r\n" + "c=IN IP4 0\r\n" + "a=rtpmap:100 VP8/90000\r\n" + "a=extmap:2 urn:ietf:params:rtp-hdrext:toffset\r\n" + "a=extmap:2 " + "http://www.webrtc.org/experiments/rtp-hdrext/abs-send-time\r\n"; + auto result = mSessionAns->SetRemoteDescription(kJsepSdpOffer, sdp); + ASSERT_TRUE(result.mError == Some(dom::PCError::OperationError)); + ASSERT_EQ("Description contains duplicate extension id 2 on level 0", + mSessionAns->GetLastError()); +} + +TEST_F(JsepSessionTest, TestNegotiatedExtmapStability) { + AddTracks(*mSessionAns, "audio,video"); + + std::string sdp = + "v=0\r\n" + "o=- 6 2 IN IP4 1r\r\n" + "t=0 0a\r\n" + "a=ice-ufrag:Xp\r\n" + "a=ice-pwd:he\r\n" + "a=setup:actpass\r\n" + "a=fingerprint:sha-256 " + "DC:FC:25:56:2B:88:77:2F:E4:FA:97:4E:2E:F1:D6:34:A6:A0:11:E2:E4:38:B3:98:" + "08:D2:F7:9D:F5:E2:C1:15\r\n" + "m=audio 9 UDP/TLS/RTP/SAVPF 111\r\n" + "c=IN IP4 51.81.107.13\r\n" + "a=sendrecv\r\n" + "a=extmap:11 urn:ietf:params:rtp-hdrext:ssrc-audio-level\r\n" + "a=fmtp:111 maxplaybackrate=48000;stereo=1;useinbandfec=1\r\n" + "a=mid:audio\r\n" + "a=rtcp-mux\r\n" + "a=rtpmap:111 opus/48000/2\r\n" + "a=setup:active\r\n" + "a=ssrc:3463672643 cname:{ec9a356a-8d2c-504e-9977-99070a51f929}\r\n" + "m=video 9 UDP/TLS/RTP/SAVPF 100\r\n" + "c=IN IP4 0\r\n" + "a=sendrecv\r\n" + "a=rtpmap:100 VP8/90000\r\n" + "a=extmap:12 urn:ietf:params:rtp-hdrext:toffset\r\n" + "a=extmap:13 " + "http://www.webrtc.org/experiments/rtp-hdrext/abs-send-time\r\n"; + auto result = mSessionAns->SetRemoteDescription(kJsepSdpOffer, sdp); + ASSERT_FALSE(result.mError.isSome()); + auto answer = CreateAnswer(); + result = mSessionAns->SetLocalDescription(kJsepSdpAnswer, answer); + ASSERT_FALSE(result.mError.isSome()); + + // Verify that we've negotiated the right extmap based on the unusual values + // in the offer. + auto transceivers = mSessionAns->GetTransceivers(); + ASSERT_EQ(2U, transceivers.size()); + auto* audioSend = transceivers[0]->mSendTrack.GetNegotiatedDetails(); + auto* audioRecv = transceivers[0]->mRecvTrack.GetNegotiatedDetails(); + auto* videoSend = transceivers[1]->mSendTrack.GetNegotiatedDetails(); + auto* videoRecv = transceivers[1]->mRecvTrack.GetNegotiatedDetails(); + ASSERT_TRUE(audioSend); + ASSERT_TRUE(audioRecv); + ASSERT_TRUE(videoSend); + ASSERT_TRUE(videoRecv); + ASSERT_EQ( + 11U, + audioSend->GetExt("urn:ietf:params:rtp-hdrext:ssrc-audio-level")->entry); + ASSERT_EQ( + 11U, + audioRecv->GetExt("urn:ietf:params:rtp-hdrext:ssrc-audio-level")->entry); + ASSERT_EQ(12U, + videoSend->GetExt("urn:ietf:params:rtp-hdrext:toffset")->entry); + ASSERT_EQ(12U, + videoRecv->GetExt("urn:ietf:params:rtp-hdrext:toffset")->entry); + ASSERT_EQ( + 13U, + videoSend + ->GetExt("http://www.webrtc.org/experiments/rtp-hdrext/abs-send-time") + ->entry); + ASSERT_EQ( + 13U, + videoRecv + ->GetExt("http://www.webrtc.org/experiments/rtp-hdrext/abs-send-time") + ->entry); + + SwapOfferAnswerRoles(); + + // Make sure a reoffer uses the negotiated extmap + auto reoffer = CreateOffer(); + ASSERT_NE(std::string::npos, reoffer.find("a=extmap:11")); + ASSERT_NE(std::string::npos, reoffer.find("a=extmap:12")); + ASSERT_NE(std::string::npos, reoffer.find("a=extmap:13")); +} + +TEST_F(JsepSessionTest, TestNegotiatedExtmapCollision) { + AddTracks(*mSessionAns, "audio"); + // ssrc-audio-level will be extmap 1 for both + // csrc-audio-level will be 2 for both + // mid will be 3 for both + mSessionAns->AddAudioRtpExtension("foo"); + mSessionAns->AddAudioRtpExtension("bar"); + mSessionAns->AddAudioRtpExtension("baz"); + + // Set up an offer that uses the same extmap entries, but for different + // things, causing collisions. + std::string sdp = + "v=0\r\n" + "o=- 6 2 IN IP4 1r\r\n" + "t=0 0a\r\n" + "a=ice-ufrag:Xp\r\n" + "a=ice-pwd:he\r\n" + "a=setup:actpass\r\n" + "a=fingerprint:sha-256 " + "DC:FC:25:56:2B:88:77:2F:E4:FA:97:4E:2E:F1:D6:34:A6:A0:11:E2:E4:38:B3:98:" + "08:D2:F7:9D:F5:E2:C1:15\r\n" + "m=audio 9 UDP/TLS/RTP/SAVPF 111\r\n" + "c=IN IP4 51.81.107.13\r\n" + "a=sendrecv\r\n" + "a=extmap:1 foo\r\n" + "a=extmap:2 bar\r\n" + "a=extmap:3 baz\r\n" + "a=extmap:11 urn:ietf:params:rtp-hdrext:ssrc-audio-level\r\n" + "a=fmtp:111 maxplaybackrate=48000;stereo=1;useinbandfec=1\r\n" + "a=mid:audio\r\n" + "a=rtcp-mux\r\n" + "a=rtpmap:111 opus/48000/2\r\n" + "a=setup:active\r\n" + "a=ssrc:3463672643 cname:{ec9a356a-8d2c-504e-9977-99070a51f929}\r\n"; + auto result = mSessionAns->SetRemoteDescription(kJsepSdpOffer, sdp); + ASSERT_FALSE(result.mError.isSome()); + auto answer = CreateAnswer(); + result = mSessionAns->SetLocalDescription(kJsepSdpAnswer, answer); + ASSERT_FALSE(result.mError.isSome()); + + // Verify that we've negotiated the right extmap based on the unusual values + // in the offer. + auto transceivers = mSessionAns->GetTransceivers(); + ASSERT_EQ(1U, transceivers.size()); + auto* audioSend = transceivers[0]->mSendTrack.GetNegotiatedDetails(); + auto* audioRecv = transceivers[0]->mRecvTrack.GetNegotiatedDetails(); + ASSERT_TRUE(audioSend); + ASSERT_TRUE(audioRecv); + ASSERT_EQ(1U, audioSend->GetExt("foo")->entry); + ASSERT_EQ(1U, audioRecv->GetExt("foo")->entry); + ASSERT_EQ(2U, audioSend->GetExt("bar")->entry); + ASSERT_EQ(2U, audioRecv->GetExt("bar")->entry); + ASSERT_EQ(3U, audioSend->GetExt("baz")->entry); + ASSERT_EQ(3U, audioRecv->GetExt("baz")->entry); + ASSERT_EQ( + 11U, + audioSend->GetExt("urn:ietf:params:rtp-hdrext:ssrc-audio-level")->entry); + ASSERT_EQ( + 11U, + audioRecv->GetExt("urn:ietf:params:rtp-hdrext:ssrc-audio-level")->entry); + SwapOfferAnswerRoles(); + + // Make sure a reoffer uses the negotiated extmap + auto reoffer = CreateOffer(); + ASSERT_NE(std::string::npos, reoffer.find("a=extmap:1 foo")); + ASSERT_NE(std::string::npos, reoffer.find("a=extmap:2 bar")); + ASSERT_NE(std::string::npos, reoffer.find("a=extmap:3 baz")); + ASSERT_NE( + std::string::npos, + reoffer.find("a=extmap:11 urn:ietf:params:rtp-hdrext:ssrc-audio-level")); + + // Ensure no duplicates + ASSERT_EQ(std::string::npos, + reoffer.find("a=extmap:1 ", reoffer.find("a=extmap:1 ") + 1)); + ASSERT_EQ(std::string::npos, + reoffer.find("a=extmap:2 ", reoffer.find("a=extmap:2 ") + 1)); + ASSERT_EQ(std::string::npos, + reoffer.find("a=extmap:3 ", reoffer.find("a=extmap:3 ") + 1)); + ASSERT_EQ(std::string::npos, + reoffer.find("a=extmap:11 ", reoffer.find("a=extmap:11 ") + 1)); +} + +TEST_F(JsepSessionTest, TestExtmapAnswerChangesId) { + types.push_back(SdpMediaSection::kAudio); + AddTracks(*mSessionOff, "audio"); + AddTracks(*mSessionAns, "audio"); + + std::string offer = CreateOffer(); + SetLocalOffer(offer, ALL_CHECKS); + SetRemoteOffer(offer, ALL_CHECKS); + + std::string answer = CreateAnswer(); + std::string mungedAnswer = + SetExtmap(answer, "urn:ietf:params:rtp-hdrext:sdes:mid", 14); + JsepSession::Result result = + mSessionOff->SetRemoteDescription(kJsepSdpAnswer, mungedAnswer); + ASSERT_TRUE(result.mError.isSome()); + ASSERT_EQ(dom::PCError::InvalidAccessError, *result.mError); + ASSERT_NE(mSessionOff->GetLastError().find( + "Answer changed id for extmap attribute at level 0"), + std::string::npos); +} + +TEST_F(JsepSessionTest, TestExtmapChangeId) { + types.push_back(SdpMediaSection::kAudio); + AddTracks(*mSessionOff, "audio"); + AddTracks(*mSessionAns, "audio"); + + OfferAnswer(); + + // RFC 5285 does not seem to forbid giving a pre-existing extension a new id, + // as long as that id has never been used before + { + std::string offer = CreateOffer(); + SetLocalOffer(offer, ALL_CHECKS); + uint16_t oldId = 0; + std::string mungedOffer = + SetExtmap(offer, "urn:ietf:params:rtp-hdrext:sdes:mid", 14, &oldId); + ASSERT_NE(oldId, 0); + SetRemoteOffer(mungedOffer, ALL_CHECKS); + + std::string answer = CreateAnswer(); + SetLocalAnswer(answer, ALL_CHECKS); + + std::string mungedAnswer = + SetExtmap(answer, "urn:ietf:params:rtp-hdrext:sdes:mid", oldId); + SetRemoteAnswer(mungedAnswer, ALL_CHECKS); + } + + // Make sure going back to the previous id works + OfferAnswer(); +} + +TEST_F(JsepSessionTest, TestExtmapSwap) { + types.push_back(SdpMediaSection::kAudio); + AddTracks(*mSessionOff, "audio"); + AddTracks(*mSessionAns, "audio"); + + OfferAnswer(); + + std::string offer = CreateOffer(); + uint16_t midId = GetExtmap(offer, "urn:ietf:params:rtp-hdrext:sdes:mid"); + uint16_t ssrcLevelId = 0; + std::string mungedOffer = + SetExtmap(offer, "urn:ietf:params:rtp-hdrext:ssrc-audio-level", midId, + &ssrcLevelId); + mungedOffer = SetExtmap(mungedOffer, "urn:ietf:params:rtp-hdrext:sdes:mid", + ssrcLevelId); + + JsepSession::Result result = + mSessionAns->SetRemoteDescription(kJsepSdpOffer, mungedOffer); + ASSERT_TRUE(result.mError.isSome()); + ASSERT_EQ(dom::PCError::InvalidAccessError, *result.mError); + ASSERT_NE(mSessionAns->GetLastError().find( + "Remote description attempted to remap RTP extension id"), + std::string::npos); +} + +TEST_F(JsepSessionTest, TestExtmapReuse) { + types.push_back(SdpMediaSection::kAudio); + AddTracks(*mSessionOff, "audio"); + AddTracks(*mSessionAns, "audio"); + + OfferAnswer(); + + std::string offer = CreateOffer(); + UniquePtr<Sdp> munge(Parse(offer)); + ASSERT_EQ(1U, munge->GetMediaSectionCount()); + + auto& offerMediaAttrs = munge->GetMediaSection(0).GetAttributeList(); + ASSERT_TRUE(offerMediaAttrs.HasAttribute(SdpAttribute::kExtmapAttribute)); + auto offerExtmap = offerMediaAttrs.GetExtmap(); + for (auto& ext : offerExtmap.mExtmaps) { + if (ext.extensionname == "urn:ietf:params:rtp-hdrext:ssrc-audio-level") { + ext.extensionname = "foo"; + } + } + + offerMediaAttrs.SetAttribute(offerExtmap.Clone()); + + std::string sdpString = munge->ToString(); + JsepSession::Result result = + mSessionAns->SetRemoteDescription(kJsepSdpOffer, sdpString); + ASSERT_TRUE(result.mError.isSome()); + ASSERT_EQ(dom::PCError::InvalidAccessError, *result.mError); + ASSERT_NE(mSessionAns->GetLastError().find( + "Remote description attempted to remap RTP extension id"), + std::string::npos); +} + +TEST_F(JsepSessionTest, TestExtmapReuseAfterRenegotiation) { + types.push_back(SdpMediaSection::kAudio); + AddTracks(*mSessionOff, "audio"); + AddTracks(*mSessionAns, "audio"); + + OfferAnswer(); + + // Renegotiate without ssrc-audio-level + { + std::string offer = CreateOffer(); + SetLocalOffer(offer, ALL_CHECKS); + // Passing 0 removes urn:ietf:params:rtp-hdrext:ssrc-audio-level + std::string mungedOffer = + SetExtmap(offer, "urn:ietf:params:rtp-hdrext:ssrc-audio-level", 0); + SetRemoteOffer(mungedOffer, ALL_CHECKS); + + std::string answer = CreateAnswer(); + SetLocalAnswer(answer, ALL_CHECKS); + SetRemoteAnswer(answer, ALL_CHECKS); + } + + // Make sure trying to reuse the id for ssrc-audio-level fails, even though we + // did not use it last round. + { + std::string offer = CreateOffer(); + UniquePtr<Sdp> munge(Parse(offer)); + ASSERT_EQ(1U, munge->GetMediaSectionCount()); + + auto& offerMediaAttrs = munge->GetMediaSection(0).GetAttributeList(); + ASSERT_TRUE(offerMediaAttrs.HasAttribute(SdpAttribute::kExtmapAttribute)); + auto offerExtmap = offerMediaAttrs.GetExtmap(); + for (auto& ext : offerExtmap.mExtmaps) { + if (ext.extensionname == "urn:ietf:params:rtp-hdrext:ssrc-audio-level") { + ext.extensionname = "foo"; + } + } + + offerMediaAttrs.SetAttribute(offerExtmap.Clone()); + + std::string sdpString = munge->ToString(); + JsepSession::Result result = + mSessionAns->SetRemoteDescription(kJsepSdpOffer, sdpString); + ASSERT_TRUE(result.mError.isSome()); + ASSERT_EQ(dom::PCError::InvalidAccessError, *result.mError); + ASSERT_NE(mSessionAns->GetLastError().find( + "Remote description attempted to remap RTP extension id"), + std::string::npos); + } +} + +TEST_F(JsepSessionTest, TestRtcpFbStar) { + AddTracks(*mSessionOff, "video"); + AddTracks(*mSessionAns, "video"); + + std::string offer = CreateOffer(); + + UniquePtr<Sdp> parsedOffer(Parse(offer)); + auto* rtcpfbs = new SdpRtcpFbAttributeList; + rtcpfbs->PushEntry("*", SdpRtcpFbAttributeList::kNack); + parsedOffer->GetMediaSection(0).GetAttributeList().SetAttribute(rtcpfbs); + offer = parsedOffer->ToString(); + + SetLocalOffer(offer, CHECK_SUCCESS); + SetRemoteOffer(offer, CHECK_SUCCESS); + std::string answer = CreateAnswer(); + SetLocalAnswer(answer, CHECK_SUCCESS); + SetRemoteAnswer(answer, CHECK_SUCCESS); + + ASSERT_EQ(1U, GetRemoteTracks(*mSessionAns).size()); + JsepTrack track = GetRemoteTracks(*mSessionAns)[0]; + ASSERT_TRUE(track.GetNegotiatedDetails()); + auto* details = track.GetNegotiatedDetails(); + for (const auto& codec : details->GetEncoding(0).GetCodecs()) { + const JsepVideoCodecDescription* videoCodec = + static_cast<const JsepVideoCodecDescription*>(codec.get()); + ASSERT_EQ(1U, videoCodec->mNackFbTypes.size()); + ASSERT_EQ("", videoCodec->mNackFbTypes[0]); + } +} + +TEST_F(JsepSessionTest, TestUniquePayloadTypes) { + // The audio payload types will all appear more than once, but the video + // payload types will be unique. + AddTracks(*mSessionOff, "audio,audio,video"); + AddTracks(*mSessionAns, "audio,audio,video"); + + std::string offer = CreateOffer(); + SetLocalOffer(offer, CHECK_SUCCESS); + SetRemoteOffer(offer, CHECK_SUCCESS); + std::string answer = CreateAnswer(); + SetLocalAnswer(answer, CHECK_SUCCESS); + SetRemoteAnswer(answer, CHECK_SUCCESS); + + auto offerTransceivers = mSessionOff->GetTransceivers(); + auto answerTransceivers = mSessionAns->GetTransceivers(); + ASSERT_EQ(3U, offerTransceivers.size()); + ASSERT_EQ(3U, answerTransceivers.size()); + + ASSERT_FALSE(IsNull(offerTransceivers[0]->mRecvTrack)); + ASSERT_TRUE(offerTransceivers[0]->mRecvTrack.GetNegotiatedDetails()); + ASSERT_EQ(0U, offerTransceivers[0] + ->mRecvTrack.GetNegotiatedDetails() + ->GetUniquePayloadTypes() + .size()); + + ASSERT_FALSE(IsNull(offerTransceivers[1]->mRecvTrack)); + ASSERT_TRUE(offerTransceivers[1]->mRecvTrack.GetNegotiatedDetails()); + ASSERT_EQ(0U, offerTransceivers[1] + ->mRecvTrack.GetNegotiatedDetails() + ->GetUniquePayloadTypes() + .size()); + + ASSERT_FALSE(IsNull(offerTransceivers[2]->mRecvTrack)); + ASSERT_TRUE(offerTransceivers[2]->mRecvTrack.GetNegotiatedDetails()); + ASSERT_NE(0U, offerTransceivers[2] + ->mRecvTrack.GetNegotiatedDetails() + ->GetUniquePayloadTypes() + .size()); + + ASSERT_FALSE(IsNull(answerTransceivers[0]->mRecvTrack)); + ASSERT_TRUE(answerTransceivers[0]->mRecvTrack.GetNegotiatedDetails()); + ASSERT_EQ(0U, answerTransceivers[0] + ->mRecvTrack.GetNegotiatedDetails() + ->GetUniquePayloadTypes() + .size()); + + ASSERT_FALSE(IsNull(answerTransceivers[1]->mRecvTrack)); + ASSERT_TRUE(answerTransceivers[1]->mRecvTrack.GetNegotiatedDetails()); + ASSERT_EQ(0U, answerTransceivers[1] + ->mRecvTrack.GetNegotiatedDetails() + ->GetUniquePayloadTypes() + .size()); + + ASSERT_FALSE(IsNull(answerTransceivers[2]->mRecvTrack)); + ASSERT_TRUE(answerTransceivers[2]->mRecvTrack.GetNegotiatedDetails()); + ASSERT_NE(0U, answerTransceivers[2] + ->mRecvTrack.GetNegotiatedDetails() + ->GetUniquePayloadTypes() + .size()); +} + +TEST_F(JsepSessionTest, UnknownFingerprintAlgorithm) { + types.push_back(SdpMediaSection::kAudio); + AddTracks(*mSessionOff, "audio"); + AddTracks(*mSessionAns, "audio"); + + std::string offer(CreateOffer()); + SetLocalOffer(offer); + ReplaceAll("fingerprint:sha", "fingerprint:foo", &offer); + JsepSession::Result result = + mSessionAns->SetRemoteDescription(kJsepSdpOffer, offer); + ASSERT_EQ(dom::PCError::OperationError, *result.mError); + ASSERT_NE("", mSessionAns->GetLastError()); +} + +TEST(H264ProfileLevelIdTest, TestLevelComparisons) +{ + ASSERT_LT(JsepVideoCodecDescription::GetSaneH264Level(0x421D0B), // 1b + JsepVideoCodecDescription::GetSaneH264Level(0x420D0B)); // 1.1 + ASSERT_LT(JsepVideoCodecDescription::GetSaneH264Level(0x420D0A), // 1.0 + JsepVideoCodecDescription::GetSaneH264Level(0x421D0B)); // 1b + ASSERT_LT(JsepVideoCodecDescription::GetSaneH264Level(0x420D0A), // 1.0 + JsepVideoCodecDescription::GetSaneH264Level(0x420D0B)); // 1.1 + + ASSERT_LT(JsepVideoCodecDescription::GetSaneH264Level(0x640009), // 1b + JsepVideoCodecDescription::GetSaneH264Level(0x64000B)); // 1.1 + ASSERT_LT(JsepVideoCodecDescription::GetSaneH264Level(0x64000A), // 1.0 + JsepVideoCodecDescription::GetSaneH264Level(0x640009)); // 1b + ASSERT_LT(JsepVideoCodecDescription::GetSaneH264Level(0x64000A), // 1.0 + JsepVideoCodecDescription::GetSaneH264Level(0x64000B)); // 1.1 +} + +TEST(H264ProfileLevelIdTest, TestLevelSetting) +{ + uint32_t profileLevelId = 0x420D0A; + JsepVideoCodecDescription::SetSaneH264Level( + JsepVideoCodecDescription::GetSaneH264Level(0x42100B), &profileLevelId); + ASSERT_EQ((uint32_t)0x421D0B, profileLevelId); + + JsepVideoCodecDescription::SetSaneH264Level( + JsepVideoCodecDescription::GetSaneH264Level(0x42000A), &profileLevelId); + ASSERT_EQ((uint32_t)0x420D0A, profileLevelId); + + profileLevelId = 0x6E100A; + JsepVideoCodecDescription::SetSaneH264Level( + JsepVideoCodecDescription::GetSaneH264Level(0x640009), &profileLevelId); + ASSERT_EQ((uint32_t)0x6E1009, profileLevelId); + + JsepVideoCodecDescription::SetSaneH264Level( + JsepVideoCodecDescription::GetSaneH264Level(0x64000B), &profileLevelId); + ASSERT_EQ((uint32_t)0x6E100B, profileLevelId); +} + +TEST_F(JsepSessionTest, StronglyPreferredCodec) { + for (auto& codec : mSessionAns->Codecs()) { + if (codec->mName == "H264") { + codec->mStronglyPreferred = true; + } + } + + types.push_back(SdpMediaSection::kVideo); + AddTracks(*mSessionOff, "video"); + AddTracks(*mSessionAns, "video"); + + OfferAnswer(); + + UniquePtr<JsepCodecDescription> codec; + GetCodec(*mSessionAns, 0, sdp::kSend, 0, 0, &codec); + ASSERT_TRUE(codec); + ASSERT_EQ("H264", codec->mName); + GetCodec(*mSessionAns, 0, sdp::kRecv, 0, 0, &codec); + ASSERT_TRUE(codec); + ASSERT_EQ("H264", codec->mName); +} + +TEST_F(JsepSessionTest, LowDynamicPayloadType) { + SetPayloadTypeNumber(*mSessionOff, "opus", "12"); + types.push_back(SdpMediaSection::kAudio); + AddTracks(*mSessionOff, "audio"); + AddTracks(*mSessionAns, "audio"); + + OfferAnswer(); + UniquePtr<JsepCodecDescription> codec; + GetCodec(*mSessionAns, 0, sdp::kSend, 0, 0, &codec); + ASSERT_TRUE(codec); + ASSERT_EQ("opus", codec->mName); + ASSERT_EQ("12", codec->mDefaultPt); + GetCodec(*mSessionAns, 0, sdp::kRecv, 0, 0, &codec); + ASSERT_TRUE(codec); + ASSERT_EQ("opus", codec->mName); + ASSERT_EQ("12", codec->mDefaultPt); +} + +TEST_F(JsepSessionTest, TestOfferPTAsymmetry) { + SetPayloadTypeNumber(*mSessionAns, "opus", "105"); + types.push_back(SdpMediaSection::kAudio); + AddTracks(*mSessionOff, "audio"); + AddTracks(*mSessionAns, "audio"); + JsepOfferOptions options; + + // Ensure that mSessionAns is appropriately configured. Also ensure that + // creating an offer with 105 does not prompt mSessionAns to ignore the + // PT in the offer. + std::string offer; + JsepSession::Result result = mSessionAns->CreateOffer(options, &offer); + ASSERT_FALSE(result.mError.isSome()); + ASSERT_NE(std::string::npos, offer.find("a=rtpmap:105 opus")) << offer; + + OfferAnswer(); + + // Answerer should use what the offerer suggested + UniquePtr<JsepCodecDescription> codec; + GetCodec(*mSessionAns, 0, sdp::kSend, 0, 0, &codec); + ASSERT_TRUE(codec); + ASSERT_EQ("opus", codec->mName); + ASSERT_EQ("109", codec->mDefaultPt); + GetCodec(*mSessionAns, 0, sdp::kRecv, 0, 0, &codec); + ASSERT_TRUE(codec); + ASSERT_EQ("opus", codec->mName); + ASSERT_EQ("109", codec->mDefaultPt); + + // Answerer should not change when it reoffers + result = mSessionAns->CreateOffer(options, &offer); + ASSERT_FALSE(result.mError.isSome()); + ASSERT_NE(std::string::npos, offer.find("a=rtpmap:109 opus")) << offer; +} + +TEST_F(JsepSessionTest, TestAnswerPTAsymmetry) { + // JsepSessionImpl will never answer with an asymmetric payload type + // (tested in TestOfferPTAsymmetry), so we have to rewrite SDP a little. + types.push_back(SdpMediaSection::kAudio); + AddTracks(*mSessionOff, "audio"); + AddTracks(*mSessionAns, "audio"); + + std::string offer = CreateOffer(); + SetLocalOffer(offer); + + Replace("a=rtpmap:109 opus", "a=rtpmap:105 opus", &offer); + Replace("m=audio 9 UDP/TLS/RTP/SAVPF 109", "m=audio 9 UDP/TLS/RTP/SAVPF 105", + &offer); + ReplaceAll("a=fmtp:109", "a=fmtp:105", &offer); + SetRemoteOffer(offer); + + std::string answer = CreateAnswer(); + SetLocalAnswer(answer); + SetRemoteAnswer(answer); + + UniquePtr<JsepCodecDescription> codec; + GetCodec(*mSessionOff, 0, sdp::kSend, 0, 0, &codec); + ASSERT_TRUE(codec); + ASSERT_EQ("opus", codec->mName); + ASSERT_EQ("105", codec->mDefaultPt); + GetCodec(*mSessionOff, 0, sdp::kRecv, 0, 0, &codec); + ASSERT_TRUE(codec); + ASSERT_EQ("opus", codec->mName); + ASSERT_EQ("109", codec->mDefaultPt); + + GetCodec(*mSessionAns, 0, sdp::kSend, 0, 0, &codec); + ASSERT_TRUE(codec); + ASSERT_EQ("opus", codec->mName); + ASSERT_EQ("105", codec->mDefaultPt); + GetCodec(*mSessionAns, 0, sdp::kRecv, 0, 0, &codec); + ASSERT_TRUE(codec); + ASSERT_EQ("opus", codec->mName); + ASSERT_EQ("105", codec->mDefaultPt); + + // Offerer should use 105 for reoffers + offer = CreateOffer(); + ASSERT_NE(std::string::npos, offer.find("a=rtpmap:105 opus")) << offer; + ASSERT_EQ(std::string::npos, offer.find("a=rtpmap:109 opus")) << offer; + ASSERT_NE(std::string::npos, offer.find("a=fmtp:105")) << offer; + ASSERT_EQ(std::string::npos, offer.find("a=fmtp:109")) << offer; +} + +TEST_F(JsepSessionTest, PayloadTypeClash) { + // Set up a scenario where mSessionAns' favorite codec (opus) is unsupported + // by mSessionOff, and mSessionOff uses that payload type for something else. + SetCodecEnabled(*mSessionOff, "opus", false); + SetPayloadTypeNumber(*mSessionOff, "opus", "0"); + SetPayloadTypeNumber(*mSessionOff, "G722", "109"); + SetPayloadTypeNumber(*mSessionAns, "opus", "109"); + types.push_back(SdpMediaSection::kAudio); + AddTracks(*mSessionOff, "audio"); + AddTracks(*mSessionAns, "audio"); + + OfferAnswer(); + UniquePtr<JsepCodecDescription> codec; + GetCodec(*mSessionAns, 0, sdp::kSend, 0, 0, &codec); + ASSERT_TRUE(codec); + ASSERT_EQ("G722", codec->mName); + ASSERT_EQ("109", codec->mDefaultPt); + GetCodec(*mSessionAns, 0, sdp::kRecv, 0, 0, &codec); + ASSERT_TRUE(codec); + ASSERT_EQ("G722", codec->mName); + ASSERT_EQ("109", codec->mDefaultPt); + + // Now, make sure that mSessionAns does not put a=rtpmap:109 opus in a + // reoffer, since pt 109 is taken for PCMU (the answerer still supports opus, + // and will reoffer it, but it should choose a new payload type for it) + JsepOfferOptions options; + std::string reoffer; + JsepSession::Result result = mSessionAns->CreateOffer(options, &reoffer); + ASSERT_FALSE(result.mError.isSome()); + ASSERT_EQ(std::string::npos, reoffer.find("a=rtpmap:109 opus")) << reoffer; + ASSERT_NE(std::string::npos, reoffer.find(" opus")) << reoffer; +} + +TEST_P(JsepSessionTest, TestGlareRollback) { + AddTracks(*mSessionOff); + AddTracks(*mSessionAns); + JsepOfferOptions options; + + std::string offer; + ASSERT_FALSE(mSessionAns->CreateOffer(options, &offer).mError.isSome()); + ASSERT_FALSE( + mSessionAns->SetLocalDescription(kJsepSdpOffer, offer).mError.isSome()); + ASSERT_EQ(kJsepStateHaveLocalOffer, mSessionAns->GetState()); + + ASSERT_FALSE(mSessionOff->CreateOffer(options, &offer).mError.isSome()); + ASSERT_FALSE( + mSessionOff->SetLocalDescription(kJsepSdpOffer, offer).mError.isSome()); + ASSERT_EQ(kJsepStateHaveLocalOffer, mSessionOff->GetState()); + + ASSERT_EQ(dom::PCError::InvalidStateError, + *mSessionAns->SetRemoteDescription(kJsepSdpOffer, offer).mError); + ASSERT_FALSE( + mSessionAns->SetLocalDescription(kJsepSdpRollback, "").mError.isSome()); + ASSERT_EQ(kJsepStateStable, mSessionAns->GetState()); + + SetRemoteOffer(offer); + + std::string answer = CreateAnswer(); + SetLocalAnswer(answer); + SetRemoteAnswer(answer); +} + +TEST_P(JsepSessionTest, TestRejectOfferRollback) { + AddTracks(*mSessionOff); + AddTracks(*mSessionAns); + + std::string offer = CreateOffer(); + SetLocalOffer(offer); + SetRemoteOffer(offer); + + ASSERT_FALSE( + mSessionAns->SetRemoteDescription(kJsepSdpRollback, "").mError.isSome()); + ASSERT_EQ(kJsepStateStable, mSessionAns->GetState()); + for (const auto& transceiver : mSessionAns->GetTransceivers()) { + ASSERT_EQ(0U, transceiver->mRecvTrack.GetStreamIds().size()); + } + + ASSERT_FALSE( + mSessionOff->SetLocalDescription(kJsepSdpRollback, "").mError.isSome()); + ASSERT_EQ(kJsepStateStable, mSessionOff->GetState()); + + OfferAnswer(); +} + +TEST_P(JsepSessionTest, TestInvalidRollback) { + AddTracks(*mSessionOff); + AddTracks(*mSessionAns); + + ASSERT_EQ(dom::PCError::InvalidStateError, + *mSessionOff->SetLocalDescription(kJsepSdpRollback, "").mError); + ASSERT_EQ(dom::PCError::InvalidStateError, + *mSessionOff->SetRemoteDescription(kJsepSdpRollback, "").mError); + + std::string offer = CreateOffer(); + ASSERT_EQ(dom::PCError::InvalidStateError, + *mSessionOff->SetLocalDescription(kJsepSdpRollback, "").mError); + ASSERT_EQ(dom::PCError::InvalidStateError, + *mSessionOff->SetRemoteDescription(kJsepSdpRollback, "").mError); + + SetLocalOffer(offer); + ASSERT_EQ(dom::PCError::InvalidStateError, + *mSessionOff->SetRemoteDescription(kJsepSdpRollback, "").mError); + + SetRemoteOffer(offer); + ASSERT_EQ(dom::PCError::InvalidStateError, + *mSessionAns->SetLocalDescription(kJsepSdpRollback, "").mError); + + std::string answer = CreateAnswer(); + ASSERT_EQ(dom::PCError::InvalidStateError, + *mSessionAns->SetLocalDescription(kJsepSdpRollback, "").mError); + + SetLocalAnswer(answer); + ASSERT_EQ(dom::PCError::InvalidStateError, + *mSessionAns->SetLocalDescription(kJsepSdpRollback, "").mError); + ASSERT_EQ(dom::PCError::InvalidStateError, + *mSessionAns->SetRemoteDescription(kJsepSdpRollback, "").mError); + + SetRemoteAnswer(answer); + ASSERT_EQ(dom::PCError::InvalidStateError, + *mSessionOff->SetLocalDescription(kJsepSdpRollback, "").mError); + ASSERT_EQ(dom::PCError::InvalidStateError, + *mSessionOff->SetRemoteDescription(kJsepSdpRollback, "").mError); +} + +size_t GetActiveTransportCount(const JsepSession& session) { + size_t activeTransportCount = 0; + for (const auto& transceiver : session.GetTransceivers()) { + if (!transceiver->HasBundleLevel() || + (transceiver->BundleLevel() == transceiver->GetLevel())) { + activeTransportCount += transceiver->mTransport.mComponents; + } + } + return activeTransportCount; +} + +TEST_P(JsepSessionTest, TestBalancedBundle) { + AddTracks(*mSessionOff); + AddTracks(*mSessionAns); + + mSessionOff->SetBundlePolicy(kBundleBalanced); + + std::string offer = CreateOffer(); + UniquePtr<Sdp> parsedOffer = std::move(SipccSdpParser().Parse(offer)->Sdp()); + + ASSERT_TRUE(parsedOffer.get()); + + std::map<SdpMediaSection::MediaType, SdpMediaSection*> firstByType; + + for (size_t i = 0; i < parsedOffer->GetMediaSectionCount(); ++i) { + SdpMediaSection& msection(parsedOffer->GetMediaSection(i)); + bool firstOfType = !firstByType.count(msection.GetMediaType()); + if (firstOfType) { + firstByType[msection.GetMediaType()] = &msection; + } + ASSERT_EQ(!firstOfType, msection.GetAttributeList().HasAttribute( + SdpAttribute::kBundleOnlyAttribute)); + } + + SetLocalOffer(offer); + SetRemoteOffer(offer); + std::string answer = CreateAnswer(); + SetLocalAnswer(answer); + SetRemoteAnswer(answer); + + CheckTransceiversAreBundled(*mSessionOff, "Offerer transceivers"); + CheckTransceiversAreBundled(*mSessionAns, "Answerer transceivers"); + EXPECT_EQ(1U, GetActiveTransportCount(*mSessionOff)); + EXPECT_EQ(1U, GetActiveTransportCount(*mSessionAns)); +} + +TEST_P(JsepSessionTest, TestMaxBundle) { + AddTracks(*mSessionOff); + AddTracks(*mSessionAns); + + mSessionOff->SetBundlePolicy(kBundleMaxBundle); + std::string offer = CreateOffer(); + UniquePtr<Sdp> parsedOffer = std::move(SipccSdpParser().Parse(offer)->Sdp()); + + ASSERT_TRUE(parsedOffer.get()); + + ASSERT_FALSE(parsedOffer->GetMediaSection(0).GetAttributeList().HasAttribute( + SdpAttribute::kBundleOnlyAttribute)); + ASSERT_NE(0U, parsedOffer->GetMediaSection(0).GetPort()); + for (size_t i = 1; i < parsedOffer->GetMediaSectionCount(); ++i) { + ASSERT_TRUE(parsedOffer->GetMediaSection(i).GetAttributeList().HasAttribute( + SdpAttribute::kBundleOnlyAttribute)); + ASSERT_EQ(0U, parsedOffer->GetMediaSection(i).GetPort()); + } + + SetLocalOffer(offer); + for (const auto& transceiver : mSessionOff->GetTransceivers()) { + if (transceiver->GetLevel() == 0) { + // We do not set the bundle-level in have-local-offer unless the + // m-section is bundle-only. + ASSERT_FALSE(transceiver->HasBundleLevel()); + } else { + ASSERT_TRUE(transceiver->HasBundleLevel()); + ASSERT_EQ(0U, transceiver->BundleLevel()); + } + ASSERT_NE("", transceiver->mTransport.mTransportId); + } + + SetRemoteOffer(offer); + std::string answer = CreateAnswer(); + SetLocalAnswer(answer); + SetRemoteAnswer(answer); + + CheckTransceiversAreBundled(*mSessionOff, "Offerer transceivers"); + CheckTransceiversAreBundled(*mSessionAns, "Answerer transceivers"); + EXPECT_EQ(1U, GetActiveTransportCount(*mSessionOff)); + EXPECT_EQ(1U, GetActiveTransportCount(*mSessionAns)); +} + +TEST_F(JsepSessionTest, TestNonDefaultProtocol) { + AddTracks(*mSessionOff, "audio,video,datachannel"); + AddTracks(*mSessionAns, "audio,video,datachannel"); + + std::string offer; + ASSERT_FALSE( + mSessionOff->CreateOffer(JsepOfferOptions(), &offer).mError.isSome()); + offer.replace(offer.find("UDP/TLS/RTP/SAVPF"), strlen("UDP/TLS/RTP/SAVPF"), + "RTP/SAVPF"); + offer.replace(offer.find("UDP/TLS/RTP/SAVPF"), strlen("UDP/TLS/RTP/SAVPF"), + "RTP/SAVPF"); + mSessionOff->SetLocalDescription(kJsepSdpOffer, offer); + mSessionAns->SetRemoteDescription(kJsepSdpOffer, offer); + + std::string answer; + mSessionAns->CreateAnswer(JsepAnswerOptions(), &answer); + UniquePtr<Sdp> parsedAnswer = Parse(answer); + ASSERT_EQ(3U, parsedAnswer->GetMediaSectionCount()); + ASSERT_EQ(SdpMediaSection::kRtpSavpf, + parsedAnswer->GetMediaSection(0).GetProtocol()); + ASSERT_EQ(SdpMediaSection::kRtpSavpf, + parsedAnswer->GetMediaSection(1).GetProtocol()); + + mSessionAns->SetLocalDescription(kJsepSdpAnswer, answer); + mSessionOff->SetRemoteDescription(kJsepSdpAnswer, answer); + + // Make sure reoffer uses the same protocol as before + mSessionOff->CreateOffer(JsepOfferOptions(), &offer); + UniquePtr<Sdp> parsedOffer = Parse(offer); + ASSERT_EQ(3U, parsedOffer->GetMediaSectionCount()); + ASSERT_EQ(SdpMediaSection::kRtpSavpf, + parsedOffer->GetMediaSection(0).GetProtocol()); + ASSERT_EQ(SdpMediaSection::kRtpSavpf, + parsedOffer->GetMediaSection(1).GetProtocol()); + + // Make sure reoffer from other side uses the same protocol as before + mSessionAns->CreateOffer(JsepOfferOptions(), &offer); + parsedOffer = Parse(offer); + ASSERT_EQ(3U, parsedOffer->GetMediaSectionCount()); + ASSERT_EQ(SdpMediaSection::kRtpSavpf, + parsedOffer->GetMediaSection(0).GetProtocol()); + ASSERT_EQ(SdpMediaSection::kRtpSavpf, + parsedOffer->GetMediaSection(1).GetProtocol()); +} + +TEST_F(JsepSessionTest, CreateOfferNoVideoStreamRecvVideo) { + types.push_back(SdpMediaSection::kAudio); + AddTracks(*mSessionOff, "audio"); + + JsepOfferOptions options; + options.mOfferToReceiveAudio = Some(static_cast<size_t>(1U)); + options.mOfferToReceiveVideo = Some(static_cast<size_t>(1U)); + + CreateOffer(Some(options)); +} + +TEST_F(JsepSessionTest, CreateOfferNoAudioStreamRecvAudio) { + types.push_back(SdpMediaSection::kVideo); + AddTracks(*mSessionOff, "video"); + + JsepOfferOptions options; + options.mOfferToReceiveAudio = Some(static_cast<size_t>(1U)); + options.mOfferToReceiveVideo = Some(static_cast<size_t>(1U)); + + CreateOffer(Some(options)); +} + +TEST_F(JsepSessionTest, CreateOfferNoVideoStream) { + types.push_back(SdpMediaSection::kAudio); + AddTracks(*mSessionOff, "audio"); + + JsepOfferOptions options; + options.mOfferToReceiveAudio = Some(static_cast<size_t>(1U)); + options.mOfferToReceiveVideo = Some(static_cast<size_t>(0U)); + + CreateOffer(Some(options)); +} + +TEST_F(JsepSessionTest, CreateOfferNoAudioStream) { + types.push_back(SdpMediaSection::kVideo); + AddTracks(*mSessionOff, "video"); + + JsepOfferOptions options; + options.mOfferToReceiveAudio = Some(static_cast<size_t>(0U)); + options.mOfferToReceiveVideo = Some(static_cast<size_t>(1U)); + + CreateOffer(Some(options)); +} + +TEST_F(JsepSessionTest, CreateOfferDontReceiveAudio) { + types.push_back(SdpMediaSection::kAudio); + types.push_back(SdpMediaSection::kVideo); + AddTracks(*mSessionOff, "audio,video"); + + JsepOfferOptions options; + options.mOfferToReceiveAudio = Some(static_cast<size_t>(0U)); + options.mOfferToReceiveVideo = Some(static_cast<size_t>(1U)); + + CreateOffer(Some(options)); +} + +TEST_F(JsepSessionTest, CreateOfferDontReceiveVideo) { + types.push_back(SdpMediaSection::kAudio); + types.push_back(SdpMediaSection::kVideo); + AddTracks(*mSessionOff, "audio,video"); + + JsepOfferOptions options; + options.mOfferToReceiveAudio = Some(static_cast<size_t>(1U)); + options.mOfferToReceiveVideo = Some(static_cast<size_t>(0U)); + + CreateOffer(Some(options)); +} + +TEST_F(JsepSessionTest, CreateOfferRemoveAudioTrack) { + types.push_back(SdpMediaSection::kAudio); + types.push_back(SdpMediaSection::kVideo); + AddTracks(*mSessionOff, "audio,video"); + + SetDirection(*mSessionOff, 1, SdpDirectionAttribute::kSendonly); + JsepTrack removedTrack = RemoveTrack(*mSessionOff, 0); + ASSERT_FALSE(IsNull(removedTrack)); + + CreateOffer(); +} + +TEST_F(JsepSessionTest, CreateOfferDontReceiveAudioRemoveAudioTrack) { + types.push_back(SdpMediaSection::kAudio); + types.push_back(SdpMediaSection::kVideo); + AddTracks(*mSessionOff, "audio,video"); + + SetDirection(*mSessionOff, 0, SdpDirectionAttribute::kSendonly); + JsepTrack removedTrack = RemoveTrack(*mSessionOff, 0); + ASSERT_FALSE(IsNull(removedTrack)); + + CreateOffer(); +} + +TEST_F(JsepSessionTest, CreateOfferDontReceiveVideoRemoveVideoTrack) { + types.push_back(SdpMediaSection::kAudio); + types.push_back(SdpMediaSection::kVideo); + AddTracks(*mSessionOff, "audio,video"); + + JsepOfferOptions options; + options.mOfferToReceiveAudio = Some(static_cast<size_t>(1U)); + options.mOfferToReceiveVideo = Some(static_cast<size_t>(0U)); + + JsepTrack removedTrack = RemoveTrack(*mSessionOff, 0); + ASSERT_FALSE(IsNull(removedTrack)); + + CreateOffer(Some(options)); +} + +static const std::string strSampleCandidate = + "a=candidate:1 1 UDP 2130706431 192.168.2.1 50005 typ host\r\n"; + +static const unsigned short nSamplelevel = 2; + +TEST_F(JsepSessionTest, CreateOfferAddCandidate) { + types.push_back(SdpMediaSection::kAudio); + AddTracks(*mSessionOff, "audio"); + std::string offer = CreateOffer(); + SetLocalOffer(offer); + + uint16_t level; + std::string mid; + bool skipped; + nsresult rv; + rv = mSessionOff->AddLocalIceCandidate(strSampleCandidate, + GetTransportId(*mSessionOff, 0), "", + &level, &mid, &skipped); + ASSERT_EQ(NS_OK, rv); +} + +TEST_F(JsepSessionTest, AddIceCandidateEarly) { + uint16_t level; + std::string mid; + bool skipped; + nsresult rv; + rv = mSessionOff->AddLocalIceCandidate(strSampleCandidate, + GetTransportId(*mSessionOff, 0), "", + &level, &mid, &skipped); + + // This can't succeed without a local description + ASSERT_NE(NS_OK, rv); +} + +TEST_F(JsepSessionTest, OfferAnswerDontAddAudioStreamOnAnswerNoOptions) { + types.push_back(SdpMediaSection::kAudio); + types.push_back(SdpMediaSection::kVideo); + AddTracks(*mSessionOff, "audio,video"); + AddTracks(*mSessionAns, "video"); + + JsepOfferOptions options; + options.mOfferToReceiveAudio = Some(static_cast<size_t>(1U)); + options.mOfferToReceiveVideo = Some(static_cast<size_t>(1U)); + + CreateOffer(Some(options)); + std::string offer = CreateOffer(Some(options)); + SetLocalOffer(offer); + SetRemoteOffer(offer); + std::string answer = CreateAnswer(); + SetLocalAnswer(answer, CHECK_SUCCESS); + SetRemoteAnswer(answer, CHECK_SUCCESS); +} + +TEST_F(JsepSessionTest, OfferAnswerDontAddVideoStreamOnAnswerNoOptions) { + types.push_back(SdpMediaSection::kAudio); + types.push_back(SdpMediaSection::kVideo); + AddTracks(*mSessionOff, "audio,video"); + AddTracks(*mSessionAns, "audio"); + + JsepOfferOptions options; + options.mOfferToReceiveAudio = Some(static_cast<size_t>(1U)); + options.mOfferToReceiveVideo = Some(static_cast<size_t>(1U)); + + CreateOffer(Some(options)); + std::string offer = CreateOffer(Some(options)); + SetLocalOffer(offer); + SetRemoteOffer(offer); + std::string answer = CreateAnswer(); + SetLocalAnswer(answer, CHECK_SUCCESS); + SetRemoteAnswer(answer, CHECK_SUCCESS); +} + +TEST_F(JsepSessionTest, OfferAnswerDontAddAudioVideoStreamsOnAnswerNoOptions) { + types.push_back(SdpMediaSection::kAudio); + types.push_back(SdpMediaSection::kVideo); + AddTracks(*mSessionOff, "audio,video"); + AddTracks(*mSessionAns); + + JsepOfferOptions options; + options.mOfferToReceiveAudio = Some(static_cast<size_t>(1U)); + options.mOfferToReceiveVideo = Some(static_cast<size_t>(1U)); + + OfferAnswer(); +} + +TEST_F(JsepSessionTest, OfferAndAnswerWithExtraCodec) { + types.push_back(SdpMediaSection::kAudio); + AddTracks(*mSessionOff, "audio"); + AddTracks(*mSessionAns, "audio"); + std::string offer = CreateOffer(); + SetLocalOffer(offer); + SetRemoteOffer(offer); + std::string answer = CreateAnswer(); + + UniquePtr<Sdp> munge = Parse(answer); + SdpMediaSection& mediaSection = munge->GetMediaSection(0); + mediaSection.AddCodec("8", "PCMA", 8000, 1); + std::string sdpString = munge->ToString(); + + SetLocalAnswer(sdpString); + SetRemoteAnswer(answer); +} + +TEST_F(JsepSessionTest, AddCandidateInHaveLocalOffer) { + types.push_back(SdpMediaSection::kAudio); + AddTracks(*mSessionOff, "audio"); + std::string offer = CreateOffer(); + SetLocalOffer(offer); + + std::string mid; + std::string transportId; + JsepSession::Result result = mSessionOff->AddRemoteIceCandidate( + strSampleCandidate, mid, Some(nSamplelevel), "", &transportId); + ASSERT_EQ(dom::PCError::InvalidStateError, *result.mError); +} + +TEST_F(JsepSessionTest, SetLocalWithoutCreateOffer) { + types.push_back(SdpMediaSection::kAudio); + AddTracks(*mSessionOff, "audio"); + AddTracks(*mSessionAns, "audio"); + + std::string offer = CreateOffer(); + JsepSession::Result result = + mSessionAns->SetLocalDescription(kJsepSdpOffer, offer); + ASSERT_EQ(dom::PCError::InvalidModificationError, *result.mError); +} + +TEST_F(JsepSessionTest, SetLocalWithoutCreateAnswer) { + types.push_back(SdpMediaSection::kAudio); + AddTracks(*mSessionOff, "audio"); + AddTracks(*mSessionAns, "audio"); + + std::string offer = CreateOffer(); + SetRemoteOffer(offer); + JsepSession::Result result = + mSessionAns->SetLocalDescription(kJsepSdpAnswer, offer); + ASSERT_EQ(dom::PCError::InvalidModificationError, *result.mError); +} + +// Test for Bug 843595 +TEST_F(JsepSessionTest, missingUfrag) { + types.push_back(SdpMediaSection::kAudio); + AddTracks(*mSessionOff, "audio"); + AddTracks(*mSessionAns, "audio"); + std::string offer = CreateOffer(); + std::string ufrag = "ice-ufrag"; + std::size_t pos = offer.find(ufrag); + ASSERT_NE(pos, std::string::npos); + offer.replace(pos, ufrag.length(), "ice-ufrog"); + JsepSession::Result result = + mSessionAns->SetRemoteDescription(kJsepSdpOffer, offer); + ASSERT_EQ(dom::PCError::OperationError, *result.mError); +} + +TEST_F(JsepSessionTest, AudioOnlyCalleeNoRtcpMux) { + types.push_back(SdpMediaSection::kAudio); + AddTracks(*mSessionOff, "audio"); + AddTracks(*mSessionAns, "audio"); + std::string offer = CreateOffer(); + std::string rtcp_mux = "a=rtcp-mux\r\n"; + std::size_t pos = offer.find(rtcp_mux); + ASSERT_NE(pos, std::string::npos); + offer.replace(pos, rtcp_mux.length(), ""); + SetLocalOffer(offer); + SetRemoteOffer(offer); + std::string answer = CreateAnswer(); + pos = answer.find(rtcp_mux); + ASSERT_EQ(pos, std::string::npos); +} + +// This test comes from Bug 810220 +TEST_F(JsepSessionTest, AudioOnlyG711Call) { + std::string offer = + "v=0\r\n" + "o=- 1 1 IN IP4 148.147.200.251\r\n" + "s=-\r\n" + "b=AS:64\r\n" + "t=0 0\r\n" + "a=fingerprint:sha-256 F3:FA:20:C0:CD:48:C4:5F:02:5F:A5:D3:21:D0:2D:48:" + "7B:31:60:5C:5A:D8:0D:CD:78:78:6C:6D:CE:CC:0C:67\r\n" + "m=audio 9000 UDP/TLS/RTP/SAVPF 0 8 126\r\n" + "c=IN IP4 148.147.200.251\r\n" + "b=TIAS:64000\r\n" + "a=rtpmap:0 PCMU/8000\r\n" + "a=rtpmap:8 PCMA/8000\r\n" + "a=rtpmap:126 telephone-event/8000\r\n" + "a=candidate:0 1 udp 2130706432 148.147.200.251 9000 typ host\r\n" + "a=candidate:0 2 udp 2130706432 148.147.200.251 9005 typ host\r\n" + "a=ice-ufrag:cYuakxkEKH+RApYE\r\n" + "a=ice-pwd:bwtpzLZD+3jbu8vQHvEa6Xuq\r\n" + "a=setup:active\r\n" + "a=sendrecv\r\n"; + + types.push_back(SdpMediaSection::kAudio); + AddTracks(*mSessionAns, "audio"); + SetRemoteOffer(offer, CHECK_SUCCESS); + std::string answer = CreateAnswer(); + + // They didn't offer opus, so our answer shouldn't include it. + ASSERT_EQ(answer.find(" opus/"), std::string::npos); + + // They also didn't offer video or application + ASSERT_EQ(answer.find("video"), std::string::npos); + ASSERT_EQ(answer.find("application"), std::string::npos); + + // We should answer with PCMU and telephone-event + ASSERT_NE(answer.find(" PCMU/8000"), std::string::npos); + + // Double-check the directionality + ASSERT_NE(answer.find("\r\na=sendrecv"), std::string::npos); +} + +TEST_F(JsepSessionTest, AudioOnlyG722Only) { + types.push_back(SdpMediaSection::kAudio); + AddTracks(*mSessionOff, "audio"); + AddTracks(*mSessionAns, "audio"); + std::string offer = CreateOffer(); + SetLocalOffer(offer); + + std::string audio = "m=audio 9 UDP/TLS/RTP/SAVPF 109 9 0 8 101\r\n"; + std::size_t pos = offer.find(audio); + ASSERT_NE(pos, std::string::npos); + offer.replace(pos, audio.length(), "m=audio 65375 UDP/TLS/RTP/SAVPF 9\r\n"); + SetRemoteOffer(offer); + + std::string answer = CreateAnswer(); + SetLocalAnswer(answer); + ASSERT_NE(mSessionAns->GetLocalDescription(kJsepDescriptionCurrent) + .find("UDP/TLS/RTP/SAVPF 9\r"), + std::string::npos); + ASSERT_NE(mSessionAns->GetLocalDescription(kJsepDescriptionCurrent) + .find("a=rtpmap:9 G722/8000"), + std::string::npos); +} + +TEST_F(JsepSessionTest, AudioOnlyG722Rejected) { + types.push_back(SdpMediaSection::kAudio); + AddTracks(*mSessionOff, "audio"); + AddTracks(*mSessionAns, "audio"); + std::string offer = CreateOffer(); + SetLocalOffer(offer); + + std::string audio = "m=audio 9 UDP/TLS/RTP/SAVPF 109 9 0 8 101\r\n"; + std::size_t pos = offer.find(audio); + ASSERT_NE(pos, std::string::npos); + offer.replace(pos, audio.length(), "m=audio 65375 UDP/TLS/RTP/SAVPF 0 8\r\n"); + SetRemoteOffer(offer); + + std::string answer = CreateAnswer(); + SetLocalAnswer(answer); + SetRemoteAnswer(answer); + + ASSERT_NE(mSessionAns->GetLocalDescription(kJsepDescriptionCurrent) + .find("UDP/TLS/RTP/SAVPF 0 8\r"), + std::string::npos); + ASSERT_NE(mSessionAns->GetLocalDescription(kJsepDescriptionCurrent) + .find("a=rtpmap:0 PCMU/8000"), + std::string::npos); + ASSERT_EQ(mSessionAns->GetLocalDescription(kJsepDescriptionCurrent) + .find("a=rtpmap:109 opus/48000/2"), + std::string::npos); + ASSERT_EQ(mSessionAns->GetLocalDescription(kJsepDescriptionCurrent) + .find("a=rtpmap:9 G722/8000"), + std::string::npos); +} + +// This test doesn't make sense for bundle +TEST_F(JsepSessionTest, DISABLED_FullCallAudioNoMuxVideoMux) { + types.push_back(SdpMediaSection::kAudio); + AddTracks(*mSessionOff, "audio,video"); + AddTracks(*mSessionAns, "audio,video"); + std::string offer = CreateOffer(); + SetLocalOffer(offer); + std::string rtcp_mux = "a=rtcp-mux\r\n"; + std::size_t pos = offer.find(rtcp_mux); + ASSERT_NE(pos, std::string::npos); + offer.replace(pos, rtcp_mux.length(), ""); + SetRemoteOffer(offer); + std::string answer = CreateAnswer(); + + size_t match = mSessionAns->GetLocalDescription(kJsepDescriptionCurrent) + .find("\r\na=rtcp-mux"); + ASSERT_NE(match, std::string::npos); + match = mSessionAns->GetLocalDescription(kJsepDescriptionCurrent) + .find("\r\na=rtcp-mux", match + 1); + ASSERT_EQ(match, std::string::npos); +} + +// Disabled pending resolution of bug 818640. +// Actually, this test is completely broken; you can't just call +// SetRemote/CreateAnswer over and over again. +TEST_F(JsepSessionTest, DISABLED_OfferAllDynamicTypes) { + types.push_back(SdpMediaSection::kAudio); + AddTracks(*mSessionAns, "audio"); + + std::string offer; + for (int i = 96; i < 128; i++) { + std::stringstream ss; + ss << i; + std::cout << "Trying dynamic pt = " << i << std::endl; + offer = + "v=0\r\n" + "o=- 1 1 IN IP4 148.147.200.251\r\n" + "s=-\r\n" + "b=AS:64\r\n" + "t=0 0\r\n" + "a=fingerprint:sha-256 F3:FA:20:C0:CD:48:C4:5F:02:5F:A5:D3:21:D0:2D:48:" + "7B:31:60:5C:5A:D8:0D:CD:78:78:6C:6D:CE:CC:0C:67\r\n" + "m=audio 9000 RTP/AVP " + + ss.str() + + "\r\n" + "c=IN IP4 148.147.200.251\r\n" + "b=TIAS:64000\r\n" + "a=rtpmap:" + + ss.str() + + " opus/48000/2\r\n" + "a=candidate:0 1 udp 2130706432 148.147.200.251 9000 typ host\r\n" + "a=candidate:0 2 udp 2130706432 148.147.200.251 9005 typ host\r\n" + "a=ice-ufrag:cYuakxkEKH+RApYE\r\n" + "a=ice-pwd:bwtpzLZD+3jbu8vQHvEa6Xuq\r\n" + "a=sendrecv\r\n"; + + SetRemoteOffer(offer, CHECK_SUCCESS); + std::string answer = CreateAnswer(); + ASSERT_NE(answer.find(ss.str() + " opus/"), std::string::npos); + } +} + +TEST_F(JsepSessionTest, ipAddrAnyOffer) { + std::string offer = + "v=0\r\n" + "o=- 1 1 IN IP4 127.0.0.1\r\n" + "s=-\r\n" + "b=AS:64\r\n" + "t=0 0\r\n" + "a=fingerprint:sha-256 F3:FA:20:C0:CD:48:C4:5F:02:5F:A5:D3:21:D0:2D:48:" + "7B:31:60:5C:5A:D8:0D:CD:78:78:6C:6D:CE:CC:0C:67\r\n" + "m=audio 9000 UDP/TLS/RTP/SAVPF 99\r\n" + "c=IN IP4 0.0.0.0\r\n" + "a=rtpmap:99 opus/48000/2\r\n" + "a=ice-ufrag:cYuakxkEKH+RApYE\r\n" + "a=ice-pwd:bwtpzLZD+3jbu8vQHvEa6Xuq\r\n" + "a=setup:active\r\n" + "a=sendrecv\r\n"; + + types.push_back(SdpMediaSection::kAudio); + AddTracks(*mSessionAns, "audio"); + SetRemoteOffer(offer, CHECK_SUCCESS); + std::string answer = CreateAnswer(); + + ASSERT_NE(answer.find("a=sendrecv"), std::string::npos); +} + +static void CreateSDPForBigOTests(std::string& offer, + const std::string& number) { + offer = + "v=0\r\n" + "o=- "; + offer += number; + offer += " "; + offer += number; + offer += + " IN IP4 127.0.0.1\r\n" + "s=-\r\n" + "b=AS:64\r\n" + "t=0 0\r\n" + "a=fingerprint:sha-256 F3:FA:20:C0:CD:48:C4:5F:02:5F:A5:D3:21:D0:2D:48:" + "7B:31:60:5C:5A:D8:0D:CD:78:78:6C:6D:CE:CC:0C:67\r\n" + "m=audio 9000 RTP/AVP 99\r\n" + "c=IN IP4 0.0.0.0\r\n" + "a=rtpmap:99 opus/48000/2\r\n" + "a=ice-ufrag:cYuakxkEKH+RApYE\r\n" + "a=ice-pwd:bwtpzLZD+3jbu8vQHvEa6Xuq\r\n" + "a=setup:active\r\n" + "a=sendrecv\r\n"; +} + +TEST_F(JsepSessionTest, BigOValues) { + std::string offer; + + CreateSDPForBigOTests(offer, "12345678901234567"); + + types.push_back(SdpMediaSection::kAudio); + AddTracks(*mSessionAns, "audio"); + SetRemoteOffer(offer, CHECK_SUCCESS); +} + +TEST_F(JsepSessionTest, BigOValuesExtraChars) { + std::string offer; + + CreateSDPForBigOTests(offer, "12345678901234567FOOBAR"); + + types.push_back(SdpMediaSection::kAudio); + AddTracks(*mSessionAns, "audio"); + // The signaling state will remain "stable" because the unparsable + // SDP leads to a failure in SetRemoteDescription. + SetRemoteOffer(offer, NO_CHECKS); + ASSERT_EQ(kJsepStateStable, mSessionAns->GetState()); +} + +TEST_F(JsepSessionTest, BigOValuesTooBig) { + std::string offer; + + CreateSDPForBigOTests(offer, "18446744073709551615"); + types.push_back(SdpMediaSection::kAudio); + AddTracks(*mSessionAns, "audio"); + + // The signaling state will remain "stable" because the unparsable + // SDP leads to a failure in SetRemoteDescription. + SetRemoteOffer(offer, NO_CHECKS); + ASSERT_EQ(kJsepStateStable, mSessionAns->GetState()); +} + +TEST_F(JsepSessionTest, SetLocalAnswerInStable) { + types.push_back(SdpMediaSection::kAudio); + AddTracks(*mSessionOff, "audio"); + std::string offer = CreateOffer(); + + // The signaling state will remain "stable" because the + // SetLocalDescription call fails. + SetLocalAnswer(offer, NO_CHECKS); + ASSERT_EQ(kJsepStateStable, mSessionOff->GetState()); +} + +TEST_F(JsepSessionTest, SetRemoteAnswerInStable) { + const std::string answer = + "v=0\r\n" + "o=Mozilla-SIPUA 4949 0 IN IP4 10.86.255.143\r\n" + "s=SIP Call\r\n" + "t=0 0\r\n" + "a=ice-ufrag:qkEP\r\n" + "a=ice-pwd:ed6f9GuHjLcoCN6sC/Eh7fVl\r\n" + "m=audio 16384 RTP/AVP 0 8 9 101\r\n" + "c=IN IP4 10.86.255.143\r\n" + "a=rtpmap:0 PCMU/8000\r\n" + "a=rtpmap:8 PCMA/8000\r\n" + "a=rtpmap:9 G722/8000\r\n" + "a=rtpmap:101 telephone-event/8000\r\n" + "a=fmtp:101 0-15\r\n" + "a=sendrecv\r\n" + "a=candidate:1 1 UDP 2130706431 192.168.2.1 50005 typ host\r\n" + "a=candidate:2 2 UDP 2130706431 192.168.2.2 50006 typ host\r\n" + "m=video 1024 RTP/AVP 97\r\n" + "c=IN IP4 10.86.255.143\r\n" + "a=rtpmap:120 VP8/90000\r\n" + "a=fmtp:97 profile-level-id=42E00C\r\n" + "a=sendrecv\r\n" + "a=candidate:1 1 UDP 2130706431 192.168.2.3 50007 typ host\r\n" + "a=candidate:2 2 UDP 2130706431 192.168.2.4 50008 typ host\r\n"; + + // The signaling state will remain "stable" because the + // SetRemoteDescription call fails. + JsepSession::Result result = + mSessionOff->SetRemoteDescription(kJsepSdpAnswer, answer); + ASSERT_EQ(dom::PCError::InvalidStateError, *result.mError); + ASSERT_EQ(kJsepStateStable, mSessionOff->GetState()); +} + +TEST_F(JsepSessionTest, SetLocalAnswerInHaveLocalOffer) { + types.push_back(SdpMediaSection::kAudio); + AddTracks(*mSessionOff, "audio"); + std::string offer = CreateOffer(); + + SetLocalOffer(offer); + ASSERT_EQ(kJsepStateHaveLocalOffer, mSessionOff->GetState()); + + // The signaling state will remain "have-local-offer" because the + // SetLocalDescription call fails. + JsepSession::Result result = + mSessionOff->SetLocalDescription(kJsepSdpAnswer, offer); + ASSERT_EQ(dom::PCError::InvalidModificationError, *result.mError); + ASSERT_EQ(kJsepStateHaveLocalOffer, mSessionOff->GetState()); +} + +TEST_F(JsepSessionTest, SetRemoteOfferInHaveLocalOffer) { + types.push_back(SdpMediaSection::kAudio); + AddTracks(*mSessionOff, "audio"); + std::string offer = CreateOffer(); + + SetLocalOffer(offer); + ASSERT_EQ(kJsepStateHaveLocalOffer, mSessionOff->GetState()); + + // The signaling state will remain "have-local-offer" because the + // SetRemoteDescription call fails. + JsepSession::Result result = + mSessionOff->SetRemoteDescription(kJsepSdpOffer, offer); + ASSERT_EQ(dom::PCError::InvalidStateError, *result.mError); + ASSERT_EQ(kJsepStateHaveLocalOffer, mSessionOff->GetState()); +} + +TEST_F(JsepSessionTest, SetLocalOfferInHaveRemoteOffer) { + types.push_back(SdpMediaSection::kAudio); + AddTracks(*mSessionOff, "audio"); + std::string offer = CreateOffer(); + + SetRemoteOffer(offer); + ASSERT_EQ(kJsepStateHaveRemoteOffer, mSessionAns->GetState()); + + // The signaling state will remain "have-remote-offer" because the + // SetLocalDescription call fails. + JsepSession::Result result = + mSessionAns->SetLocalDescription(kJsepSdpOffer, offer); + ASSERT_EQ(dom::PCError::InvalidModificationError, *result.mError); + ASSERT_EQ(kJsepStateHaveRemoteOffer, mSessionAns->GetState()); +} + +TEST_F(JsepSessionTest, SetRemoteAnswerInHaveRemoteOffer) { + types.push_back(SdpMediaSection::kAudio); + AddTracks(*mSessionOff, "audio"); + std::string offer = CreateOffer(); + + SetRemoteOffer(offer); + ASSERT_EQ(kJsepStateHaveRemoteOffer, mSessionAns->GetState()); + + // The signaling state will remain "have-remote-offer" because the + // SetRemoteDescription call fails. + JsepSession::Result result = + mSessionAns->SetRemoteDescription(kJsepSdpAnswer, offer); + ASSERT_EQ(dom::PCError::InvalidStateError, *result.mError); + + ASSERT_EQ(kJsepStateHaveRemoteOffer, mSessionAns->GetState()); +} + +TEST_F(JsepSessionTest, RtcpFbInOffer) { + types.push_back(SdpMediaSection::kAudio); + types.push_back(SdpMediaSection::kVideo); + AddTracks(*mSessionOff, "audio,video"); + std::string offer = CreateOffer(); + + std::map<std::string, bool> expected; + expected["nack"] = false; + expected["nack pli"] = false; + expected["ccm fir"] = false; + + size_t prev = 0; + size_t found = 0; + for (;;) { + found = offer.find('\n', found + 1); + if (found == std::string::npos) break; + + std::string line = offer.substr(prev, (found - prev)); + + // ensure no other rtcp-fb values are present + if (line.find("a=rtcp-fb:") != std::string::npos) { + size_t space = line.find(' '); + // strip trailing \r\n + std::string value = line.substr(space + 1, line.length() - space - 2); + std::map<std::string, bool>::iterator entry = expected.find(value); + ASSERT_NE(entry, expected.end()); + entry->second = true; + } + + prev = found + 1; + } + + // ensure all values are present + for (std::map<std::string, bool>::iterator it = expected.begin(); + it != expected.end(); ++it) { + ASSERT_EQ(it->second, true); + } +} + +// In this test we will change the offer SDP's a=setup value +// from actpass to passive. This will force the answer to do active. +TEST_F(JsepSessionTest, AudioCallForceDtlsRoles) { + types.push_back(SdpMediaSection::kAudio); + AddTracks(*mSessionOff, "audio"); + AddTracks(*mSessionAns, "audio"); + std::string offer = CreateOffer(); + + std::string actpass = "\r\na=setup:actpass"; + size_t match = offer.find(actpass); + ASSERT_NE(match, std::string::npos); + offer.replace(match, actpass.length(), "\r\na=setup:passive"); + + SetLocalOffer(offer); + SetRemoteOffer(offer); + ASSERT_EQ(kJsepStateHaveRemoteOffer, mSessionAns->GetState()); + std::string answer = CreateAnswer(); + match = answer.find("\r\na=setup:active"); + ASSERT_NE(match, std::string::npos); + + SetLocalAnswer(answer); + SetRemoteAnswer(answer); + ASSERT_EQ(kJsepStateStable, mSessionAns->GetState()); +} + +// In this test we will change the offer SDP's a=setup value +// from actpass to active. This will force the answer to do passive. +TEST_F(JsepSessionTest, AudioCallReverseDtlsRoles) { + types.push_back(SdpMediaSection::kAudio); + AddTracks(*mSessionOff, "audio"); + AddTracks(*mSessionAns, "audio"); + std::string offer = CreateOffer(); + + std::string actpass = "\r\na=setup:actpass"; + size_t match = offer.find(actpass); + ASSERT_NE(match, std::string::npos); + offer.replace(match, actpass.length(), "\r\na=setup:active"); + + SetLocalOffer(offer); + SetRemoteOffer(offer); + ASSERT_EQ(kJsepStateHaveRemoteOffer, mSessionAns->GetState()); + std::string answer = CreateAnswer(); + match = answer.find("\r\na=setup:passive"); + ASSERT_NE(match, std::string::npos); + + SetLocalAnswer(answer); + SetRemoteAnswer(answer); + ASSERT_EQ(kJsepStateStable, mSessionAns->GetState()); +} + +// In this test we will change the answer SDP's a=setup value +// from active to passive. This will make both sides do +// active and should not connect. +TEST_F(JsepSessionTest, AudioCallMismatchDtlsRoles) { + types.push_back(SdpMediaSection::kAudio); + AddTracks(*mSessionOff, "audio"); + AddTracks(*mSessionAns, "audio"); + std::string offer = CreateOffer(); + + std::string actpass = "\r\na=setup:actpass"; + size_t match = offer.find(actpass); + ASSERT_NE(match, std::string::npos); + SetLocalOffer(offer); + SetRemoteOffer(offer); + ASSERT_EQ(kJsepStateHaveRemoteOffer, mSessionAns->GetState()); + std::string answer = CreateAnswer(); + SetLocalAnswer(answer); + + std::string active = "\r\na=setup:active"; + match = answer.find(active); + ASSERT_NE(match, std::string::npos); + answer.replace(match, active.length(), "\r\na=setup:passive"); + SetRemoteAnswer(answer); + + // This is as good as it gets in a JSEP test (w/o starting DTLS) + ASSERT_EQ(JsepDtlsTransport::kJsepDtlsClient, + mSessionOff->GetTransceivers()[0]->mTransport.mDtls->GetRole()); + ASSERT_EQ(JsepDtlsTransport::kJsepDtlsClient, + mSessionAns->GetTransceivers()[0]->mTransport.mDtls->GetRole()); +} + +// Verify that missing a=setup in offer gets rejected +TEST_F(JsepSessionTest, AudioCallOffererNoSetup) { + types.push_back(SdpMediaSection::kAudio); + AddTracks(*mSessionOff, "audio"); + AddTracks(*mSessionAns, "audio"); + std::string offer = CreateOffer(); + SetLocalOffer(offer); + + std::string actpass = "\r\na=setup:actpass"; + size_t match = offer.find(actpass); + ASSERT_NE(match, std::string::npos); + offer.replace(match, actpass.length(), ""); + + // The signaling state will remain "stable" because the unparsable + // SDP leads to a failure in SetRemoteDescription. + SetRemoteOffer(offer, NO_CHECKS); + ASSERT_EQ(kJsepStateStable, mSessionAns->GetState()); + ASSERT_EQ(kJsepStateHaveLocalOffer, mSessionOff->GetState()); +} + +// In this test we will change the answer SDP to remove the +// a=setup line, which results in active being assumed. +TEST_F(JsepSessionTest, AudioCallAnswerNoSetup) { + types.push_back(SdpMediaSection::kAudio); + AddTracks(*mSessionOff, "audio"); + AddTracks(*mSessionAns, "audio"); + std::string offer = CreateOffer(); + size_t match = offer.find("\r\na=setup:actpass"); + ASSERT_NE(match, std::string::npos); + + SetLocalOffer(offer); + SetRemoteOffer(offer); + ASSERT_EQ(kJsepStateHaveRemoteOffer, mSessionAns->GetState()); + std::string answer = CreateAnswer(); + SetLocalAnswer(answer); + + std::string active = "\r\na=setup:active"; + match = answer.find(active); + ASSERT_NE(match, std::string::npos); + answer.replace(match, active.length(), ""); + SetRemoteAnswer(answer); + ASSERT_EQ(kJsepStateStable, mSessionAns->GetState()); + + // This is as good as it gets in a JSEP test (w/o starting DTLS) + ASSERT_EQ(JsepDtlsTransport::kJsepDtlsServer, + mSessionOff->GetTransceivers()[0]->mTransport.mDtls->GetRole()); + ASSERT_EQ(JsepDtlsTransport::kJsepDtlsClient, + mSessionAns->GetTransceivers()[0]->mTransport.mDtls->GetRole()); +} + +// Verify that 'holdconn' gets rejected +TEST_F(JsepSessionTest, AudioCallDtlsRoleHoldconn) { + types.push_back(SdpMediaSection::kAudio); + AddTracks(*mSessionOff, "audio"); + AddTracks(*mSessionAns, "audio"); + std::string offer = CreateOffer(); + SetLocalOffer(offer); + + std::string actpass = "\r\na=setup:actpass"; + size_t match = offer.find(actpass); + ASSERT_NE(match, std::string::npos); + offer.replace(match, actpass.length(), "\r\na=setup:holdconn"); + + // The signaling state will remain "stable" because the unparsable + // SDP leads to a failure in SetRemoteDescription. + SetRemoteOffer(offer, NO_CHECKS); + ASSERT_EQ(kJsepStateStable, mSessionAns->GetState()); + ASSERT_EQ(kJsepStateHaveLocalOffer, mSessionOff->GetState()); +} + +// Verify that 'actpass' in answer gets rejected +TEST_F(JsepSessionTest, AudioCallAnswererUsesActpass) { + types.push_back(SdpMediaSection::kAudio); + AddTracks(*mSessionOff, "audio"); + AddTracks(*mSessionAns, "audio"); + std::string offer = CreateOffer(); + SetLocalOffer(offer); + SetRemoteOffer(offer); + std::string answer = CreateAnswer(); + SetLocalAnswer(answer); + + std::string active = "\r\na=setup:active"; + size_t match = answer.find(active); + ASSERT_NE(match, std::string::npos); + answer.replace(match, active.length(), "\r\na=setup:actpass"); + + // The signaling state will remain "stable" because the unparsable + // SDP leads to a failure in SetRemoteDescription. + SetRemoteAnswer(answer, NO_CHECKS); + ASSERT_EQ(kJsepStateStable, mSessionAns->GetState()); + ASSERT_EQ(kJsepStateHaveLocalOffer, mSessionOff->GetState()); +} + +// Verify that 'actpass' in reoffer from previous answerer doesn't result +// in a role switch. +TEST_F(JsepSessionTest, AudioCallPreviousAnswererUsesActpassInReoffer) { + types.push_back(SdpMediaSection::kAudio); + AddTracks(*mSessionOff, "audio"); + AddTracks(*mSessionAns, "audio"); + + OfferAnswer(); + + ValidateSetupAttribute(*mSessionOff, SdpSetupAttribute::kActpass); + ValidateSetupAttribute(*mSessionAns, SdpSetupAttribute::kActive); + + SwapOfferAnswerRoles(); + + OfferAnswer(); + + ValidateSetupAttribute(*mSessionOff, SdpSetupAttribute::kActpass); + ValidateSetupAttribute(*mSessionAns, SdpSetupAttribute::kPassive); +} + +// Disabled: See Bug 1329028 +TEST_F(JsepSessionTest, DISABLED_AudioCallOffererAttemptsSetupRoleSwitch) { + types.push_back(SdpMediaSection::kAudio); + AddTracks(*mSessionOff, "audio"); + AddTracks(*mSessionAns, "audio"); + + OfferAnswer(); + + ValidateSetupAttribute(*mSessionOff, SdpSetupAttribute::kActpass); + ValidateSetupAttribute(*mSessionAns, SdpSetupAttribute::kActive); + + std::string reoffer = CreateOffer(); + SetLocalOffer(reoffer); + + std::string actpass = "\r\na=setup:actpass"; + size_t match = reoffer.find(actpass); + ASSERT_NE(match, std::string::npos); + reoffer.replace(match, actpass.length(), "\r\na=setup:active"); + + // This is expected to fail. + SetRemoteOffer(reoffer, NO_CHECKS); + ASSERT_EQ(kJsepStateHaveLocalOffer, mSessionOff->GetState()); + ASSERT_EQ(kJsepStateStable, mSessionAns->GetState()); +} + +// Disabled: See Bug 1329028 +TEST_F(JsepSessionTest, DISABLED_AudioCallAnswererAttemptsSetupRoleSwitch) { + types.push_back(SdpMediaSection::kAudio); + AddTracks(*mSessionOff, "audio"); + AddTracks(*mSessionAns, "audio"); + + OfferAnswer(); + + ValidateSetupAttribute(*mSessionOff, SdpSetupAttribute::kActpass); + ValidateSetupAttribute(*mSessionAns, SdpSetupAttribute::kActive); + + std::string reoffer = CreateOffer(); + SetLocalOffer(reoffer); + SetRemoteOffer(reoffer); + + std::string reanswer = CreateAnswer(); + SetLocalAnswer(reanswer); + + std::string actpass = "\r\na=setup:active"; + size_t match = reanswer.find(actpass); + ASSERT_NE(match, std::string::npos); + reanswer.replace(match, actpass.length(), "\r\na=setup:passive"); + + // This is expected to fail. + SetRemoteAnswer(reanswer, NO_CHECKS); + ASSERT_EQ(kJsepStateHaveLocalOffer, mSessionOff->GetState()); + ASSERT_EQ(kJsepStateStable, mSessionAns->GetState()); +} + +// Remove H.264 P1 and VP8 from offer, check answer negotiates H.264 P0 +TEST_F(JsepSessionTest, OfferWithOnlyH264P0) { + for (auto& codec : mSessionOff->Codecs()) { + if (codec->mName != "H264" || codec->mDefaultPt == "126") { + codec->mEnabled = false; + } + } + + types.push_back(SdpMediaSection::kAudio); + types.push_back(SdpMediaSection::kVideo); + AddTracks(*mSessionOff, "audio,video"); + AddTracks(*mSessionAns, "audio,video"); + std::string offer = CreateOffer(); + + ASSERT_EQ(offer.find("a=rtpmap:126 H264/90000"), std::string::npos); + ASSERT_EQ(offer.find("a=rtpmap:120 VP8/90000"), std::string::npos); + + SetLocalOffer(offer); + SetRemoteOffer(offer); + std::string answer = CreateAnswer(); + size_t match = answer.find("\r\na=setup:active"); + ASSERT_NE(match, std::string::npos); + + // validate answer SDP + ASSERT_NE(answer.find("a=rtpmap:97 H264/90000"), std::string::npos); + ASSERT_NE(answer.find("a=rtcp-fb:97 nack"), std::string::npos); + ASSERT_NE(answer.find("a=rtcp-fb:97 nack pli"), std::string::npos); + ASSERT_NE(answer.find("a=rtcp-fb:97 ccm fir"), std::string::npos); + // Ensure VP8 and P1 removed + ASSERT_EQ(answer.find("a=rtpmap:126 H264/90000"), std::string::npos); + ASSERT_EQ(answer.find("a=rtpmap:120 VP8/90000"), std::string::npos); + ASSERT_EQ(answer.find("a=rtcp-fb:120"), std::string::npos); + ASSERT_EQ(answer.find("a=rtcp-fb:126"), std::string::npos); +} + +// Test negotiating an answer which has only H.264 P1 +// Which means replace VP8 with H.264 P1 in answer +TEST_F(JsepSessionTest, AnswerWithoutVP8) { + types.push_back(SdpMediaSection::kAudio); + types.push_back(SdpMediaSection::kVideo); + AddTracks(*mSessionOff, "audio,video"); + AddTracks(*mSessionAns, "audio,video"); + std::string offer = CreateOffer(); + SetLocalOffer(offer); + SetRemoteOffer(offer); + + for (auto& codec : mSessionOff->Codecs()) { + if (codec->mName != "H264" || codec->mDefaultPt == "126") { + codec->mEnabled = false; + } + } + + std::string answer = CreateAnswer(); + + SetLocalAnswer(answer); + SetRemoteAnswer(answer); +} + +// Ok. Hear me out. +// The JSEP spec specifies very different behavior for the following two cases: +// 1. AddTrack either caused a transceiver to be created, or set the send +// track on a preexisting transceiver. +// 2. The transceiver was not created as a side-effect of AddTrack, and the +// send track was put in place by some other means than AddTrack. +// +// All together now... +// +// SADFACE :( +// +// Ok, enough of that. The upshot is we need to test two different codepaths for +// the same thing here. Most of this unit-test suite tests the "magic" case +// (case 1 above). Case 2 (the non-magic case) is simpler, so we have just a +// handful of tests. +TEST_F(JsepSessionTest, OffererNoAddTrackMagic) { + types = BuildTypes("audio,video"); + AddTracks(*mSessionOff, NO_ADDTRACK_MAGIC); + AddTracks(*mSessionAns); + + // Offerer's transceivers aren't "magic"; they will not associate with the + // remote side's m-sections automatically. But, since they went into the + // offer, everything works normally. + OfferAnswer(); + + ASSERT_EQ(2U, mSessionOff->GetTransceivers().size()); + ASSERT_EQ(2U, mSessionAns->GetTransceivers().size()); +} + +TEST_F(JsepSessionTest, AnswererNoAddTrackMagic) { + types = BuildTypes("audio,video"); + AddTracks(*mSessionOff); + AddTracks(*mSessionAns, NO_ADDTRACK_MAGIC); + + OfferAnswer(CHECK_SUCCESS); + + ASSERT_EQ(2U, mSessionOff->GetTransceivers().size()); + // Since answerer's transceivers aren't "magic", they cannot automatically be + // attached to the offerer's m-sections. + ASSERT_EQ(4U, mSessionAns->GetTransceivers().size()); + + SwapOfferAnswerRoles(); + + OfferAnswer(CHECK_SUCCESS); + ASSERT_EQ(4U, mSessionOff->GetTransceivers().size()); + ASSERT_EQ(4U, mSessionAns->GetTransceivers().size()); +} + +// JSEP has rules about when a disabled m-section can be reused; the gist is +// that the m-section has to be negotiated disabled, then it becomes a candidate +// for reuse on the next renegotiation. Stopping a transceiver does not allow +// you to reuse on the next negotiation. +TEST_F(JsepSessionTest, OffererRecycle) { + types = BuildTypes("audio,video"); + AddTracks(*mSessionOff); + AddTracks(*mSessionAns); + + OfferAnswer(); + + ASSERT_EQ(2U, mSessionOff->GetTransceivers().size()); + ASSERT_EQ(2U, mSessionAns->GetTransceivers().size()); + mSessionOff->GetTransceivers()[0]->Stop(); + AddTracks(*mSessionOff, "audio"); + ASSERT_EQ(3U, mSessionOff->GetTransceivers().size()); + + OfferAnswer(CHECK_SUCCESS); + + // It is too soon to recycle msection 0, so the new track should have been + // given a new msection. + ASSERT_EQ(3U, mSessionOff->GetTransceivers().size()); + ASSERT_EQ(0U, mSessionOff->GetTransceivers()[0]->GetLevel()); + ASSERT_TRUE(mSessionOff->GetTransceivers()[0]->IsStopped()); + ASSERT_EQ(1U, mSessionOff->GetTransceivers()[1]->GetLevel()); + ASSERT_FALSE(mSessionOff->GetTransceivers()[1]->IsStopped()); + ASSERT_EQ(2U, mSessionOff->GetTransceivers()[2]->GetLevel()); + ASSERT_FALSE(mSessionOff->GetTransceivers()[2]->IsStopped()); + + ASSERT_EQ(3U, mSessionAns->GetTransceivers().size()); + ASSERT_EQ(0U, mSessionAns->GetTransceivers()[0]->GetLevel()); + ASSERT_TRUE(mSessionAns->GetTransceivers()[0]->IsStopped()); + ASSERT_EQ(1U, mSessionAns->GetTransceivers()[1]->GetLevel()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[1]->IsStopped()); + ASSERT_EQ(2U, mSessionAns->GetTransceivers()[2]->GetLevel()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[2]->IsStopped()); + + UniquePtr<Sdp> offer = GetParsedLocalDescription(*mSessionOff); + ASSERT_EQ(3U, offer->GetMediaSectionCount()); + ValidateDisabledMSection(&offer->GetMediaSection(0)); + + UniquePtr<Sdp> answer = GetParsedLocalDescription(*mSessionAns); + ASSERT_EQ(3U, answer->GetMediaSectionCount()); + ValidateDisabledMSection(&answer->GetMediaSection(0)); + + // Ok. Now renegotiating should recycle m-section 0. + AddTracks(*mSessionOff, "audio"); + ASSERT_EQ(4U, mSessionOff->GetTransceivers().size()); + OfferAnswer(CHECK_SUCCESS); + + // Transceiver 3 should now be attached to m-section 0 + ASSERT_EQ(4U, mSessionOff->GetTransceivers().size()); + ASSERT_FALSE(mSessionOff->GetTransceivers()[0]->HasLevel()); + ASSERT_TRUE(mSessionOff->GetTransceivers()[0]->IsStopped()); + ASSERT_EQ(1U, mSessionOff->GetTransceivers()[1]->GetLevel()); + ASSERT_FALSE(mSessionOff->GetTransceivers()[1]->IsStopped()); + ASSERT_EQ(2U, mSessionOff->GetTransceivers()[2]->GetLevel()); + ASSERT_FALSE(mSessionOff->GetTransceivers()[2]->IsStopped()); + ASSERT_EQ(0U, mSessionOff->GetTransceivers()[3]->GetLevel()); + ASSERT_FALSE(mSessionOff->GetTransceivers()[3]->IsStopped()); + + ASSERT_EQ(4U, mSessionAns->GetTransceivers().size()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[0]->HasLevel()); + ASSERT_TRUE(mSessionAns->GetTransceivers()[0]->IsStopped()); + ASSERT_EQ(1U, mSessionAns->GetTransceivers()[1]->GetLevel()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[1]->IsStopped()); + ASSERT_EQ(2U, mSessionAns->GetTransceivers()[2]->GetLevel()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[2]->IsStopped()); + ASSERT_EQ(0U, mSessionAns->GetTransceivers()[3]->GetLevel()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[3]->IsStopped()); +} + +TEST_F(JsepSessionTest, RecycleAnswererStopsTransceiver) { + types = BuildTypes("audio,video"); + AddTracks(*mSessionOff); + AddTracks(*mSessionAns); + + OfferAnswer(); + + ASSERT_EQ(2U, mSessionOff->GetTransceivers().size()); + ASSERT_EQ(2U, mSessionAns->GetTransceivers().size()); + mSessionAns->GetTransceivers()[0]->Stop(); + + OfferAnswer(CHECK_SUCCESS); + + ASSERT_EQ(2U, mSessionOff->GetTransceivers().size()); + ASSERT_EQ(0U, mSessionOff->GetTransceivers()[0]->GetLevel()); + ASSERT_TRUE(mSessionOff->GetTransceivers()[0]->IsStopped()); + ASSERT_EQ(1U, mSessionOff->GetTransceivers()[1]->GetLevel()); + ASSERT_FALSE(mSessionOff->GetTransceivers()[1]->IsStopped()); + + ASSERT_EQ(2U, mSessionAns->GetTransceivers().size()); + ASSERT_EQ(0U, mSessionAns->GetTransceivers()[0]->GetLevel()); + ASSERT_TRUE(mSessionAns->GetTransceivers()[0]->IsStopped()); + ASSERT_EQ(1U, mSessionAns->GetTransceivers()[1]->GetLevel()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[1]->IsStopped()); + + UniquePtr<Sdp> offer = GetParsedLocalDescription(*mSessionOff); + ASSERT_EQ(2U, offer->GetMediaSectionCount()); + + UniquePtr<Sdp> answer = GetParsedLocalDescription(*mSessionAns); + ASSERT_EQ(2U, answer->GetMediaSectionCount()); + ValidateDisabledMSection(&answer->GetMediaSection(0)); + + // Renegotiating should recycle m-section 0. + AddTracks(*mSessionOff, "audio"); + ASSERT_EQ(3U, mSessionOff->GetTransceivers().size()); + OfferAnswer(CHECK_SUCCESS); + + // Transceiver 3 should now be attached to m-section 0 + ASSERT_EQ(3U, mSessionOff->GetTransceivers().size()); + ASSERT_FALSE(mSessionOff->GetTransceivers()[0]->HasLevel()); + ASSERT_TRUE(mSessionOff->GetTransceivers()[0]->IsStopped()); + ASSERT_EQ(1U, mSessionOff->GetTransceivers()[1]->GetLevel()); + ASSERT_FALSE(mSessionOff->GetTransceivers()[1]->IsStopped()); + ASSERT_EQ(0U, mSessionOff->GetTransceivers()[2]->GetLevel()); + ASSERT_FALSE(mSessionOff->GetTransceivers()[2]->IsStopped()); + + ASSERT_EQ(3U, mSessionAns->GetTransceivers().size()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[0]->HasLevel()); + ASSERT_TRUE(mSessionAns->GetTransceivers()[0]->IsStopped()); + ASSERT_EQ(1U, mSessionAns->GetTransceivers()[1]->GetLevel()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[1]->IsStopped()); + ASSERT_EQ(0U, mSessionAns->GetTransceivers()[2]->GetLevel()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[2]->IsStopped()); +} + +// TODO: Have a test where offerer stops, and answerer adds a track and reoffers +// once Nils' role swap code lands. + +// TODO: Have a test where answerer stops and adds a track. + +TEST_F(JsepSessionTest, OffererRecycleNoMagic) { + types = BuildTypes("audio,video"); + AddTracks(*mSessionOff); + AddTracks(*mSessionAns); + + OfferAnswer(); + + ASSERT_EQ(2U, mSessionOff->GetTransceivers().size()); + ASSERT_EQ(2U, mSessionAns->GetTransceivers().size()); + mSessionOff->GetTransceivers()[0]->Stop(); + + OfferAnswer(CHECK_SUCCESS); + + // Ok. Now renegotiating should recycle m-section 0. + AddTracks(*mSessionOff, "audio", NO_ADDTRACK_MAGIC); + ASSERT_EQ(3U, mSessionOff->GetTransceivers().size()); + OfferAnswer(CHECK_SUCCESS); + + // Transceiver 2 should now be attached to m-section 0 + ASSERT_EQ(3U, mSessionOff->GetTransceivers().size()); + ASSERT_FALSE(mSessionOff->GetTransceivers()[0]->HasLevel()); + ASSERT_TRUE(mSessionOff->GetTransceivers()[0]->IsStopped()); + ASSERT_EQ(1U, mSessionOff->GetTransceivers()[1]->GetLevel()); + ASSERT_FALSE(mSessionOff->GetTransceivers()[1]->IsStopped()); + ASSERT_EQ(0U, mSessionOff->GetTransceivers()[2]->GetLevel()); + ASSERT_FALSE(mSessionOff->GetTransceivers()[2]->IsStopped()); + + ASSERT_EQ(3U, mSessionAns->GetTransceivers().size()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[0]->HasLevel()); + ASSERT_TRUE(mSessionAns->GetTransceivers()[0]->IsStopped()); + ASSERT_EQ(1U, mSessionAns->GetTransceivers()[1]->GetLevel()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[1]->IsStopped()); + ASSERT_EQ(0U, mSessionAns->GetTransceivers()[2]->GetLevel()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[2]->IsStopped()); +} + +TEST_F(JsepSessionTest, OffererRecycleNoMagicAnswererStopsTransceiver) { + types = BuildTypes("audio,video"); + AddTracks(*mSessionOff); + AddTracks(*mSessionAns); + + OfferAnswer(); + + ASSERT_EQ(2U, mSessionOff->GetTransceivers().size()); + ASSERT_EQ(2U, mSessionAns->GetTransceivers().size()); + mSessionAns->GetTransceivers()[0]->Stop(); + + OfferAnswer(CHECK_SUCCESS); + + // Ok. Now renegotiating should recycle m-section 0. + AddTracks(*mSessionOff, "audio", NO_ADDTRACK_MAGIC); + ASSERT_EQ(3U, mSessionOff->GetTransceivers().size()); + OfferAnswer(CHECK_SUCCESS); + + // Transceiver 2 should now be attached to m-section 0 + ASSERT_EQ(3U, mSessionOff->GetTransceivers().size()); + ASSERT_FALSE(mSessionOff->GetTransceivers()[0]->HasLevel()); + ASSERT_TRUE(mSessionOff->GetTransceivers()[0]->IsStopped()); + ASSERT_EQ(1U, mSessionOff->GetTransceivers()[1]->GetLevel()); + ASSERT_FALSE(mSessionOff->GetTransceivers()[1]->IsStopped()); + ASSERT_EQ(0U, mSessionOff->GetTransceivers()[2]->GetLevel()); + ASSERT_FALSE(mSessionOff->GetTransceivers()[2]->IsStopped()); + + ASSERT_EQ(3U, mSessionAns->GetTransceivers().size()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[0]->HasLevel()); + ASSERT_TRUE(mSessionAns->GetTransceivers()[0]->IsStopped()); + ASSERT_EQ(1U, mSessionAns->GetTransceivers()[1]->GetLevel()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[1]->IsStopped()); + ASSERT_EQ(0U, mSessionAns->GetTransceivers()[2]->GetLevel()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[2]->IsStopped()); +} + +TEST_F(JsepSessionTest, RecycleRollback) { + types = BuildTypes("audio,video"); + AddTracks(*mSessionOff); + AddTracks(*mSessionAns); + + OfferAnswer(); + + ASSERT_EQ(2U, mSessionOff->GetTransceivers().size()); + ASSERT_EQ(2U, mSessionAns->GetTransceivers().size()); + mSessionOff->GetTransceivers()[0]->Stop(); + + OfferAnswer(CHECK_SUCCESS); + + AddTracks(*mSessionOff, "audio"); + + ASSERT_EQ(3U, mSessionOff->GetTransceivers().size()); + ASSERT_EQ(0U, mSessionOff->GetTransceivers()[0]->GetLevel()); + ASSERT_TRUE(mSessionOff->GetTransceivers()[0]->IsStopped()); + ASSERT_FALSE(mSessionOff->GetTransceivers()[0]->IsAssociated()); + ASSERT_EQ(1U, mSessionOff->GetTransceivers()[1]->GetLevel()); + ASSERT_FALSE(mSessionOff->GetTransceivers()[1]->IsStopped()); + ASSERT_TRUE(mSessionOff->GetTransceivers()[1]->IsAssociated()); + ASSERT_FALSE(mSessionOff->GetTransceivers()[2]->HasLevel()); + ASSERT_FALSE(mSessionOff->GetTransceivers()[2]->IsStopped()); + ASSERT_FALSE(mSessionOff->GetTransceivers()[2]->IsAssociated()); + + std::string offer = CreateOffer(); + ASSERT_EQ(3U, mSessionOff->GetTransceivers().size()); + ASSERT_FALSE(mSessionOff->GetTransceivers()[0]->HasLevel()); + ASSERT_TRUE(mSessionOff->GetTransceivers()[0]->IsStopped()); + ASSERT_FALSE(mSessionOff->GetTransceivers()[0]->IsAssociated()); + ASSERT_EQ(1U, mSessionOff->GetTransceivers()[1]->GetLevel()); + ASSERT_FALSE(mSessionOff->GetTransceivers()[1]->IsStopped()); + ASSERT_TRUE(mSessionOff->GetTransceivers()[1]->IsAssociated()); + ASSERT_EQ(0U, mSessionOff->GetTransceivers()[2]->GetLevel()); + ASSERT_FALSE(mSessionOff->GetTransceivers()[2]->IsStopped()); + ASSERT_FALSE(mSessionOff->GetTransceivers()[2]->IsAssociated()); + + SetLocalOffer(offer, CHECK_SUCCESS); + + ASSERT_EQ(3U, mSessionOff->GetTransceivers().size()); + ASSERT_FALSE(mSessionOff->GetTransceivers()[0]->HasLevel()); + ASSERT_TRUE(mSessionOff->GetTransceivers()[0]->IsStopped()); + ASSERT_FALSE(mSessionOff->GetTransceivers()[0]->IsAssociated()); + ASSERT_EQ(1U, mSessionOff->GetTransceivers()[1]->GetLevel()); + ASSERT_FALSE(mSessionOff->GetTransceivers()[1]->IsStopped()); + ASSERT_TRUE(mSessionOff->GetTransceivers()[1]->IsAssociated()); + ASSERT_EQ(0U, mSessionOff->GetTransceivers()[2]->GetLevel()); + ASSERT_FALSE(mSessionOff->GetTransceivers()[2]->IsStopped()); + // This should now be associated + ASSERT_TRUE(mSessionOff->GetTransceivers()[2]->IsAssociated()); + + ASSERT_FALSE( + mSessionOff->SetLocalDescription(kJsepSdpRollback, "").mError.isSome()); + + // Rollback should not change the levels of any of these, since those are set + // in CreateOffer. + ASSERT_EQ(3U, mSessionOff->GetTransceivers().size()); + ASSERT_FALSE(mSessionOff->GetTransceivers()[0]->HasLevel()); + ASSERT_TRUE(mSessionOff->GetTransceivers()[0]->IsStopped()); + ASSERT_FALSE(mSessionOff->GetTransceivers()[0]->IsAssociated()); + ASSERT_EQ(1U, mSessionOff->GetTransceivers()[1]->GetLevel()); + ASSERT_FALSE(mSessionOff->GetTransceivers()[1]->IsStopped()); + ASSERT_TRUE(mSessionOff->GetTransceivers()[1]->IsAssociated()); + ASSERT_EQ(0U, mSessionOff->GetTransceivers()[2]->GetLevel()); + ASSERT_FALSE(mSessionOff->GetTransceivers()[2]->IsStopped()); + // This should no longer be associated + ASSERT_FALSE(mSessionOff->GetTransceivers()[2]->IsAssociated()); +} + +TEST_F(JsepSessionTest, AddTrackMagicWithNullReplaceTrack) { + types = BuildTypes("audio,video"); + AddTracks(*mSessionOff); + AddTracks(*mSessionAns); + + OfferAnswer(); + + ASSERT_EQ(2U, mSessionOff->GetTransceivers().size()); + ASSERT_EQ(2U, mSessionAns->GetTransceivers().size()); + + AddTracks(*mSessionAns, "audio"); + AddTracks(*mSessionOff, "audio"); + + ASSERT_EQ(3U, mSessionAns->GetTransceivers().size()); + ASSERT_EQ(0U, mSessionAns->GetTransceivers()[0]->GetLevel()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[0]->IsStopped()); + ASSERT_TRUE(mSessionAns->GetTransceivers()[0]->IsAssociated()); + ASSERT_EQ(1U, mSessionAns->GetTransceivers()[1]->GetLevel()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[1]->IsStopped()); + ASSERT_TRUE(mSessionAns->GetTransceivers()[1]->IsAssociated()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[2]->HasLevel()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[2]->IsStopped()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[2]->IsAssociated()); + ASSERT_TRUE(mSessionAns->GetTransceivers()[2]->HasAddTrackMagic()); + + // Ok, transceiver 2 is "magical". Ensure it still has this "magical" + // auto-matching property even if we null it out with replaceTrack. + mSessionAns->GetTransceivers()[2]->mSendTrack.ClearStreamIds(); + mSessionAns->GetTransceivers()[2]->mJsDirection = + SdpDirectionAttribute::Direction::kRecvonly; + + OfferAnswer(CHECK_SUCCESS); + + ASSERT_EQ(3U, mSessionAns->GetTransceivers().size()); + ASSERT_EQ(0U, mSessionAns->GetTransceivers()[0]->GetLevel()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[0]->IsStopped()); + ASSERT_TRUE(mSessionAns->GetTransceivers()[0]->IsAssociated()); + ASSERT_EQ(1U, mSessionAns->GetTransceivers()[1]->GetLevel()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[1]->IsStopped()); + ASSERT_TRUE(mSessionAns->GetTransceivers()[1]->IsAssociated()); + ASSERT_EQ(2U, mSessionAns->GetTransceivers()[2]->GetLevel()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[2]->IsStopped()); + ASSERT_TRUE(mSessionAns->GetTransceivers()[2]->IsAssociated()); + ASSERT_TRUE(mSessionAns->GetTransceivers()[2]->HasAddTrackMagic()); + + ASSERT_EQ(3U, mSessionOff->GetTransceivers().size()); + ASSERT_EQ(0U, mSessionOff->GetTransceivers()[0]->GetLevel()); + ASSERT_FALSE(mSessionOff->GetTransceivers()[0]->IsStopped()); + ASSERT_TRUE(mSessionOff->GetTransceivers()[0]->IsAssociated()); + ASSERT_EQ(1U, mSessionOff->GetTransceivers()[1]->GetLevel()); + ASSERT_FALSE(mSessionOff->GetTransceivers()[1]->IsStopped()); + ASSERT_TRUE(mSessionOff->GetTransceivers()[1]->IsAssociated()); + ASSERT_EQ(2U, mSessionOff->GetTransceivers()[2]->GetLevel()); + ASSERT_FALSE(mSessionOff->GetTransceivers()[2]->IsStopped()); + ASSERT_TRUE(mSessionOff->GetTransceivers()[2]->IsAssociated()); + ASSERT_TRUE(mSessionOff->GetTransceivers()[2]->HasAddTrackMagic()); +} + +// Flipside of AddTrackMagicWithNullReplaceTrack; we want to check that +// auto-matching does not work for transceivers that were created without a +// track, but were later given a track with replaceTrack. +TEST_F(JsepSessionTest, NoAddTrackMagicReplaceTrack) { + types = BuildTypes("audio,video"); + AddTracks(*mSessionOff); + AddTracks(*mSessionAns); + + OfferAnswer(); + + ASSERT_EQ(2U, mSessionOff->GetTransceivers().size()); + ASSERT_EQ(2U, mSessionAns->GetTransceivers().size()); + AddTracks(*mSessionOff, "audio"); + mSessionAns->AddTransceiver( + new JsepTransceiver(SdpMediaSection::MediaType::kAudio, mUuidGen)); + + mSessionAns->GetTransceivers()[2]->mSendTrack.UpdateStreamIds({"newstream"}); + + ASSERT_EQ(3U, mSessionAns->GetTransceivers().size()); + ASSERT_EQ(0U, mSessionAns->GetTransceivers()[0]->GetLevel()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[0]->IsStopped()); + ASSERT_TRUE(mSessionAns->GetTransceivers()[0]->IsAssociated()); + ASSERT_EQ(1U, mSessionAns->GetTransceivers()[1]->GetLevel()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[1]->IsStopped()); + ASSERT_TRUE(mSessionAns->GetTransceivers()[1]->IsAssociated()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[2]->HasLevel()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[2]->IsStopped()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[2]->IsAssociated()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[2]->HasAddTrackMagic()); + + OfferAnswer(CHECK_SUCCESS); + + ASSERT_EQ(4U, mSessionAns->GetTransceivers().size()); + ASSERT_EQ(0U, mSessionAns->GetTransceivers()[0]->GetLevel()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[0]->IsStopped()); + ASSERT_TRUE(mSessionAns->GetTransceivers()[0]->IsAssociated()); + ASSERT_EQ(1U, mSessionAns->GetTransceivers()[1]->GetLevel()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[1]->IsStopped()); + ASSERT_TRUE(mSessionAns->GetTransceivers()[1]->IsAssociated()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[2]->HasLevel()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[2]->IsStopped()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[2]->IsAssociated()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[2]->HasAddTrackMagic()); + ASSERT_EQ(2U, mSessionAns->GetTransceivers()[3]->GetLevel()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[3]->IsStopped()); + ASSERT_TRUE(mSessionAns->GetTransceivers()[3]->IsAssociated()); +} + +// Check that transceivers that were created without a send track, but that +// were subsequently given a send track with addTrack, are now "magical". +TEST_F(JsepSessionTest, AddTrackMakesTransceiverMagical) { + types = BuildTypes("audio,video"); + AddTracks(*mSessionOff); + AddTracks(*mSessionAns); + + OfferAnswer(); + + ASSERT_EQ(2U, mSessionOff->GetTransceivers().size()); + ASSERT_EQ(2U, mSessionAns->GetTransceivers().size()); + AddTracks(*mSessionOff, "audio"); + mSessionAns->AddTransceiver( + new JsepTransceiver(SdpMediaSection::MediaType::kAudio, mUuidGen)); + + ASSERT_EQ(3U, mSessionAns->GetTransceivers().size()); + ASSERT_EQ(0U, mSessionAns->GetTransceivers()[0]->GetLevel()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[0]->IsStopped()); + ASSERT_TRUE(mSessionAns->GetTransceivers()[0]->IsAssociated()); + ASSERT_EQ(1U, mSessionAns->GetTransceivers()[1]->GetLevel()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[1]->IsStopped()); + ASSERT_TRUE(mSessionAns->GetTransceivers()[1]->IsAssociated()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[2]->HasLevel()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[2]->IsStopped()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[2]->IsAssociated()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[2]->HasAddTrackMagic()); + + // :D MAGIC! D: + AddTracks(*mSessionAns, "audio"); + + ASSERT_EQ(3U, mSessionAns->GetTransceivers().size()); + ASSERT_EQ(0U, mSessionAns->GetTransceivers()[0]->GetLevel()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[0]->IsStopped()); + ASSERT_TRUE(mSessionAns->GetTransceivers()[0]->IsAssociated()); + ASSERT_EQ(1U, mSessionAns->GetTransceivers()[1]->GetLevel()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[1]->IsStopped()); + ASSERT_TRUE(mSessionAns->GetTransceivers()[1]->IsAssociated()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[2]->HasLevel()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[2]->IsStopped()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[2]->IsAssociated()); + ASSERT_TRUE(mSessionAns->GetTransceivers()[2]->HasAddTrackMagic()); + + OfferAnswer(CHECK_SUCCESS); + + ASSERT_EQ(3U, mSessionAns->GetTransceivers().size()); + ASSERT_EQ(0U, mSessionAns->GetTransceivers()[0]->GetLevel()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[0]->IsStopped()); + ASSERT_TRUE(mSessionAns->GetTransceivers()[0]->IsAssociated()); + ASSERT_EQ(1U, mSessionAns->GetTransceivers()[1]->GetLevel()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[1]->IsStopped()); + ASSERT_TRUE(mSessionAns->GetTransceivers()[1]->IsAssociated()); + ASSERT_EQ(2U, mSessionAns->GetTransceivers()[2]->GetLevel()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[2]->IsStopped()); + ASSERT_TRUE(mSessionAns->GetTransceivers()[2]->IsAssociated()); + ASSERT_TRUE(mSessionAns->GetTransceivers()[2]->HasAddTrackMagic()); +} + +TEST_F(JsepSessionTest, ComplicatedRemoteRollback) { + AddTracks(*mSessionOff, "audio,audio,audio,video"); + AddTracks(*mSessionAns, "video,video"); + + std::string offer = CreateOffer(); + SetLocalOffer(offer, CHECK_SUCCESS); + SetRemoteOffer(offer, CHECK_SUCCESS); + + // Three recvonly for audio, one sendrecv for video, and one (unmapped) for + // the second video track. + ASSERT_EQ(5U, mSessionAns->GetTransceivers().size()); + // First video transceiver; auto matched with offer + ASSERT_EQ(3U, mSessionAns->GetTransceivers()[0]->GetLevel()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[0]->IsStopped()); + ASSERT_TRUE(mSessionAns->GetTransceivers()[0]->IsAssociated()); + ASSERT_TRUE(mSessionAns->GetTransceivers()[0]->HasAddTrackMagic()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[0]->WasCreatedBySetRemote()); + + // Second video transceiver, not matched with offer + ASSERT_FALSE(mSessionAns->GetTransceivers()[1]->HasLevel()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[1]->IsStopped()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[1]->IsAssociated()); + ASSERT_TRUE(mSessionAns->GetTransceivers()[1]->HasAddTrackMagic()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[1]->WasCreatedBySetRemote()); + + // Audio transceiver, created due to application of SetRemote + ASSERT_EQ(0U, mSessionAns->GetTransceivers()[2]->GetLevel()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[2]->IsStopped()); + ASSERT_TRUE(mSessionAns->GetTransceivers()[2]->IsAssociated()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[2]->HasAddTrackMagic()); + ASSERT_TRUE(mSessionAns->GetTransceivers()[2]->WasCreatedBySetRemote()); + + // Audio transceiver, created due to application of SetRemote + ASSERT_EQ(1U, mSessionAns->GetTransceivers()[3]->GetLevel()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[3]->IsStopped()); + ASSERT_TRUE(mSessionAns->GetTransceivers()[3]->IsAssociated()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[3]->HasAddTrackMagic()); + ASSERT_TRUE(mSessionAns->GetTransceivers()[3]->WasCreatedBySetRemote()); + + // Audio transceiver, created due to application of SetRemote + ASSERT_EQ(2U, mSessionAns->GetTransceivers()[4]->GetLevel()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[4]->IsStopped()); + ASSERT_TRUE(mSessionAns->GetTransceivers()[4]->IsAssociated()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[4]->HasAddTrackMagic()); + ASSERT_TRUE(mSessionAns->GetTransceivers()[4]->WasCreatedBySetRemote()); + + // This will cause the first audio transceiver to become "magical", and + // thereby it will stick around after rollback, even though we clear it out + // with replaceTrack. + AddTracks(*mSessionAns, "audio"); + ASSERT_TRUE(mSessionAns->GetTransceivers()[2]->HasAddTrackMagic()); + mSessionAns->GetTransceivers()[2]->mSendTrack.ClearStreamIds(); + mSessionAns->GetTransceivers()[2]->mJsDirection = + SdpDirectionAttribute::Direction::kRecvonly; + + // We do nothing with the second audio transceiver; when we rollback, it will + // be marked as removed. + + // This will not cause the third audio transceiver to stick around; having a + // track is _not_ enough to preserve it. It must have addTrack "magic"! + mSessionAns->GetTransceivers()[4]->mSendTrack.UpdateStreamIds({"newstream"}); + + // Create a fourth audio transceiver. Rollback will leave it alone, since we + // created it. + mSessionAns->AddTransceiver( + new JsepTransceiver(SdpMediaSection::MediaType::kAudio, mUuidGen, + SdpDirectionAttribute::Direction::kRecvonly)); + + ASSERT_FALSE( + mSessionAns->SetRemoteDescription(kJsepSdpRollback, "").mError.isSome()); + + // Two of these (3 and 4) will be marked removed, if this all worked + ASSERT_EQ(6U, mSessionAns->GetTransceivers().size()); + + // First video transceiver + ASSERT_FALSE(mSessionAns->GetTransceivers()[0]->HasLevel()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[0]->IsStopped()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[0]->IsAssociated()); + ASSERT_TRUE(mSessionAns->GetTransceivers()[0]->HasAddTrackMagic()); + ASSERT_FALSE(IsNull(mSessionAns->GetTransceivers()[0]->mSendTrack)); + ASSERT_FALSE(mSessionAns->GetTransceivers()[0]->IsRemoved()); + + // Second video transceiver + ASSERT_FALSE(mSessionAns->GetTransceivers()[1]->HasLevel()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[1]->IsStopped()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[1]->IsAssociated()); + ASSERT_TRUE(mSessionAns->GetTransceivers()[1]->HasAddTrackMagic()); + ASSERT_FALSE(IsNull(mSessionAns->GetTransceivers()[1]->mSendTrack)); + ASSERT_FALSE(mSessionAns->GetTransceivers()[1]->IsRemoved()); + + // First audio transceiver, kept because AddTrack touched it, even though we + // removed the send track after. + ASSERT_FALSE(mSessionAns->GetTransceivers()[2]->HasLevel()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[2]->IsStopped()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[2]->IsAssociated()); + ASSERT_TRUE(mSessionAns->GetTransceivers()[2]->HasAddTrackMagic()); + ASSERT_TRUE(IsNull(mSessionAns->GetTransceivers()[2]->mSendTrack)); + ASSERT_FALSE(mSessionAns->GetTransceivers()[2]->IsRemoved()); + + // Second audio transceiver should be gone. + ASSERT_FALSE(mSessionAns->GetTransceivers()[3]->HasLevel()); + ASSERT_TRUE(mSessionAns->GetTransceivers()[3]->IsStopped()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[3]->IsAssociated()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[3]->HasAddTrackMagic()); + ASSERT_TRUE(IsNull(mSessionAns->GetTransceivers()[3]->mSendTrack)); + ASSERT_TRUE(mSessionAns->GetTransceivers()[3]->IsRemoved()); + + // Third audio transceiver should also be gone. + ASSERT_FALSE(mSessionAns->GetTransceivers()[4]->HasLevel()); + ASSERT_TRUE(mSessionAns->GetTransceivers()[4]->IsStopped()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[4]->IsAssociated()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[4]->HasAddTrackMagic()); + ASSERT_TRUE(IsNull(mSessionAns->GetTransceivers()[4]->mSendTrack)); + ASSERT_TRUE(mSessionAns->GetTransceivers()[4]->IsRemoved()); + + // Fourth audio transceiver, created after SetRemote + ASSERT_FALSE(mSessionAns->GetTransceivers()[5]->HasLevel()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[5]->IsStopped()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[5]->IsAssociated()); + ASSERT_FALSE(mSessionAns->GetTransceivers()[5]->HasAddTrackMagic()); + ASSERT_TRUE( + mSessionAns->GetTransceivers()[5]->mSendTrack.GetStreamIds().empty()); +} + +TEST_F(JsepSessionTest, LocalRollback) { + AddTracks(*mSessionOff, "audio,video"); + AddTracks(*mSessionAns, "audio,video"); + + std::string offer = CreateOffer(); + SetLocalOffer(offer, CHECK_SUCCESS); + + ASSERT_TRUE(mSessionOff->GetTransceivers()[0]->IsAssociated()); + ASSERT_TRUE(mSessionOff->GetTransceivers()[1]->IsAssociated()); + ASSERT_FALSE( + mSessionOff->SetLocalDescription(kJsepSdpRollback, "").mError.isSome()); + ASSERT_FALSE(mSessionOff->GetTransceivers()[0]->IsAssociated()); + ASSERT_FALSE(mSessionOff->GetTransceivers()[1]->IsAssociated()); +} + +TEST_F(JsepSessionTest, JsStopsTransceiverBeforeAnswer) { + AddTracks(*mSessionOff, "audio,video"); + AddTracks(*mSessionAns, "audio,video"); + + std::string offer = CreateOffer(); + SetLocalOffer(offer, CHECK_SUCCESS); + SetRemoteOffer(offer, CHECK_SUCCESS); + + std::string answer = CreateAnswer(); + SetLocalAnswer(answer, CHECK_SUCCESS); + + // Now JS decides to stop a transceiver. Make sure transport stuff is still + // ready to go when the answer is set. This should only prevent the flow of + // media for that transceiver. + + mSessionOff->GetTransceivers()[0]->Stop(); + SetRemoteAnswer(answer, CHECK_SUCCESS); + + ASSERT_TRUE(mSessionOff->GetTransceivers()[0]->IsStopped()); + ASSERT_EQ(1U, mSessionOff->GetTransceivers()[0]->mTransport.mComponents); + ASSERT_FALSE(mSessionOff->GetTransceivers()[0]->mSendTrack.GetActive()); + ASSERT_FALSE(mSessionOff->GetTransceivers()[0]->mRecvTrack.GetActive()); +} + +TEST_F(JsepSessionTest, TestOfferPTAsymmetryRtxApt) { + for (auto& codec : mSessionAns->Codecs()) { + if (codec->mName == "VP8") { + JsepVideoCodecDescription* vp8 = + static_cast<JsepVideoCodecDescription*>(codec.get()); + vp8->EnableRtx("42"); + break; + } + } + + types.push_back(SdpMediaSection::kVideo); + AddTracks(*mSessionOff, "video"); + AddTracks(*mSessionAns, "video"); + JsepOfferOptions options; + + // Ensure that mSessionAns is appropriately configured. + std::string offer; + JsepSession::Result result = mSessionAns->CreateOffer(options, &offer); + ASSERT_FALSE(result.mError.isSome()); + ASSERT_NE(std::string::npos, offer.find("a=rtpmap:42 rtx")) << offer; + + OfferAnswer(); + + // Answerer should use what the offerer suggested + UniquePtr<JsepCodecDescription> codec; + GetCodec(*mSessionAns, 0, sdp::kSend, 0, 0, &codec); + ASSERT_TRUE(codec); + ASSERT_EQ("VP8", codec->mName); + JsepVideoCodecDescription* vp8 = + static_cast<JsepVideoCodecDescription*>(codec.get()); + ASSERT_EQ("120", vp8->mDefaultPt); + ASSERT_EQ("124", vp8->mRtxPayloadType); + GetCodec(*mSessionAns, 0, sdp::kRecv, 0, 0, &codec); + ASSERT_TRUE(codec); + ASSERT_EQ("VP8", codec->mName); + vp8 = static_cast<JsepVideoCodecDescription*>(codec.get()); + ASSERT_EQ("120", vp8->mDefaultPt); + ASSERT_EQ("124", vp8->mRtxPayloadType); + + // Answerer should not change back when it reoffers + result = mSessionAns->CreateOffer(options, &offer); + ASSERT_FALSE(result.mError.isSome()); + ASSERT_NE(std::string::npos, offer.find("a=rtpmap:124 rtx")) << offer; +} + +TEST_F(JsepSessionTest, TestAnswerPTAsymmetryRtx) { + // JsepSessionImpl will never answer with an asymmetric payload type + // (tested in TestOfferPTAsymmetry), so we have to rewrite SDP a little. + types.push_back(SdpMediaSection::kVideo); + AddTracks(*mSessionOff, "video"); + AddTracks(*mSessionAns, "video"); + + std::string offer = CreateOffer(); + SetLocalOffer(offer); + + Replace("a=rtpmap:120 VP8", "a=rtpmap:119 VP8", &offer); + Replace("m=video 9 UDP/TLS/RTP/SAVPF 120", "m=video 9 UDP/TLS/RTP/SAVPF 119", + &offer); + ReplaceAll("a=fmtp:120", "a=fmtp:119", &offer); + ReplaceAll("a=fmtp:122 120", "a=fmtp:122 119", &offer); + ReplaceAll("a=fmtp:124 apt=120", "a=fmtp:124 apt=119", &offer); + ReplaceAll("a=rtcp-fb:120", "a=rtcp-fb:119", &offer); + + SetRemoteOffer(offer); + + std::string answer = CreateAnswer(); + SetLocalAnswer(answer); + SetRemoteAnswer(answer); + + UniquePtr<JsepCodecDescription> codec; + GetCodec(*mSessionOff, 0, sdp::kSend, 0, 0, &codec); + ASSERT_TRUE(codec); + ASSERT_EQ("VP8", codec->mName); + ASSERT_EQ("119", codec->mDefaultPt); + JsepVideoCodecDescription* vp8 = + static_cast<JsepVideoCodecDescription*>(codec.get()); + ASSERT_EQ("124", vp8->mRtxPayloadType); + GetCodec(*mSessionOff, 0, sdp::kRecv, 0, 0, &codec); + ASSERT_TRUE(codec); + ASSERT_EQ("VP8", codec->mName); + ASSERT_EQ("120", codec->mDefaultPt); + vp8 = static_cast<JsepVideoCodecDescription*>(codec.get()); + ASSERT_EQ("124", vp8->mRtxPayloadType); + + GetCodec(*mSessionAns, 0, sdp::kSend, 0, 0, &codec); + ASSERT_TRUE(codec); + ASSERT_EQ("VP8", codec->mName); + ASSERT_EQ("119", codec->mDefaultPt); + vp8 = static_cast<JsepVideoCodecDescription*>(codec.get()); + ASSERT_EQ("124", vp8->mRtxPayloadType); + GetCodec(*mSessionAns, 0, sdp::kRecv, 0, 0, &codec); + ASSERT_TRUE(codec); + ASSERT_EQ("VP8", codec->mName); + ASSERT_EQ("119", codec->mDefaultPt); + vp8 = static_cast<JsepVideoCodecDescription*>(codec.get()); + ASSERT_EQ("124", vp8->mRtxPayloadType); +} + +TEST_F(JsepSessionTest, TestAnswerPTAsymmetryRtxApt) { + // JsepSessionImpl will never answer with an asymmetric payload type + // so we have to rewrite SDP a little. + types.push_back(SdpMediaSection::kVideo); + AddTracks(*mSessionOff, "video"); + AddTracks(*mSessionAns, "video"); + + std::string offer = CreateOffer(); + SetLocalOffer(offer); + + Replace("a=rtpmap:124 rtx", "a=rtpmap:42 rtx", &offer); + Replace("m=video 9 UDP/TLS/RTP/SAVPF 120 124", + "m=video 9 UDP/TLS/RTP/SAVPF 120 42", &offer); + ReplaceAll("a=fmtp:124", "a=fmtp:42", &offer); + + SetRemoteOffer(offer); + + std::string answer = CreateAnswer(); + SetLocalAnswer(answer); + SetRemoteAnswer(answer); + + UniquePtr<JsepCodecDescription> codec; + GetCodec(*mSessionOff, 0, sdp::kSend, 0, 0, &codec); + ASSERT_TRUE(codec); + ASSERT_EQ("VP8", codec->mName); + ASSERT_EQ("120", codec->mDefaultPt); + JsepVideoCodecDescription* vp8 = + static_cast<JsepVideoCodecDescription*>(codec.get()); + ASSERT_EQ("42", vp8->mRtxPayloadType); + GetCodec(*mSessionOff, 0, sdp::kRecv, 0, 0, &codec); + ASSERT_TRUE(codec); + ASSERT_EQ("VP8", codec->mName); + ASSERT_EQ("120", codec->mDefaultPt); + vp8 = static_cast<JsepVideoCodecDescription*>(codec.get()); + ASSERT_EQ("124", vp8->mRtxPayloadType); + + GetCodec(*mSessionAns, 0, sdp::kSend, 0, 0, &codec); + ASSERT_TRUE(codec); + ASSERT_EQ("VP8", codec->mName); + vp8 = static_cast<JsepVideoCodecDescription*>(codec.get()); + ASSERT_EQ("120", vp8->mDefaultPt); + ASSERT_EQ("42", vp8->mRtxPayloadType); + GetCodec(*mSessionAns, 0, sdp::kRecv, 0, 0, &codec); + ASSERT_TRUE(codec); + ASSERT_EQ("VP8", codec->mName); + vp8 = static_cast<JsepVideoCodecDescription*>(codec.get()); + ASSERT_EQ("120", vp8->mDefaultPt); + ASSERT_EQ("42", vp8->mRtxPayloadType); +} + +TEST_F(JsepSessionTest, TestOfferNoRtx) { + for (auto& codec : mSessionOff->Codecs()) { + if (codec->Type() == SdpMediaSection::kVideo) { + JsepVideoCodecDescription* videoCodec = + static_cast<JsepVideoCodecDescription*>(codec.get()); + videoCodec->mRtxEnabled = false; + } + } + + types.push_back(SdpMediaSection::kVideo); + AddTracks(*mSessionOff, "video"); + AddTracks(*mSessionAns, "video"); + JsepOfferOptions options; + + std::string offer; + JsepSession::Result result = mSessionOff->CreateOffer(options, &offer); + ASSERT_FALSE(result.mError.isSome()); + ASSERT_EQ(std::string::npos, offer.find("rtx")) << offer; + + OfferAnswer(); + + // Answerer should use what the offerer suggested + UniquePtr<JsepCodecDescription> codec; + for (size_t i = 0; i < 4; ++i) { + GetCodec(*mSessionAns, 0, sdp::kSend, 0, i, &codec); + ASSERT_TRUE(codec); + JsepVideoCodecDescription* videoCodec = + static_cast<JsepVideoCodecDescription*>(codec.get()); + ASSERT_FALSE(videoCodec->mRtxEnabled); + GetCodec(*mSessionAns, 0, sdp::kRecv, 0, i, &codec); + ASSERT_TRUE(codec); + videoCodec = static_cast<JsepVideoCodecDescription*>(codec.get()); + ASSERT_FALSE(videoCodec->mRtxEnabled); + } +} + +TEST_F(JsepSessionTest, TestOneWayRtx) { + for (auto& codec : mSessionAns->Codecs()) { + if (codec->Type() == SdpMediaSection::kVideo) { + JsepVideoCodecDescription* videoCodec = + static_cast<JsepVideoCodecDescription*>(codec.get()); + videoCodec->mRtxEnabled = false; + } + } + + types.push_back(SdpMediaSection::kVideo); + AddTracks(*mSessionOff, "video"); + AddTracks(*mSessionAns, "video"); + JsepOfferOptions options; + + std::string offer; + JsepSession::Result result = mSessionAns->CreateOffer(options, &offer); + ASSERT_FALSE(result.mError.isSome()); + ASSERT_EQ(std::string::npos, offer.find("rtx")) << offer; + + OfferAnswer(); + + // If the answerer does not support rtx, the offerer should not send it, + // but it is too late to turn off recv on the offerer side. + UniquePtr<JsepCodecDescription> codec; + for (size_t i = 0; i < 4; ++i) { + GetCodec(*mSessionOff, 0, sdp::kSend, 0, i, &codec); + ASSERT_TRUE(codec); + JsepVideoCodecDescription* videoCodec = + static_cast<JsepVideoCodecDescription*>(codec.get()); + ASSERT_FALSE(videoCodec->mRtxEnabled); + GetCodec(*mSessionOff, 0, sdp::kRecv, 0, i, &codec); + ASSERT_TRUE(codec); + videoCodec = static_cast<JsepVideoCodecDescription*>(codec.get()); + ASSERT_TRUE(videoCodec->mRtxEnabled); + } +} + +TEST_F(JsepSessionTest, TestRtxNoSsrcGroup) { + mSessionOff->AddTransceiver(new JsepTransceiver( + SdpMediaSection::kVideo, mUuidGen, SdpDirectionAttribute::kRecvonly)); + + OfferAnswer(CHECK_SUCCESS); + + std::string offer = mSessionOff->GetLocalDescription(kJsepDescriptionCurrent); + ASSERT_EQ(std::string::npos, offer.find("FID")) << offer; + + std::string answer = + mSessionOff->GetRemoteDescription(kJsepDescriptionCurrent); + ASSERT_EQ(std::string::npos, answer.find("FID")) << answer; +} + +TEST_F(JsepSessionTest, TestRtxSsrcGroupOnlyOffered) { + mSessionOff->AddTransceiver(new JsepTransceiver( + SdpMediaSection::kVideo, mUuidGen, SdpDirectionAttribute::kSendonly)); + + OfferAnswer(CHECK_SUCCESS); + + std::string offer = mSessionOff->GetLocalDescription(kJsepDescriptionCurrent); + ASSERT_NE(std::string::npos, offer.find("FID")) << offer; + + std::string answer = + mSessionOff->GetRemoteDescription(kJsepDescriptionCurrent); + ASSERT_EQ(std::string::npos, answer.find("FID")) << answer; +} + +TEST_F(JsepSessionTest, TestOfferRtxNoMsid) { + for (auto& codec : mSessionOff->Codecs()) { + if (codec->mName == "VP8") { + JsepVideoCodecDescription* vp8 = + static_cast<JsepVideoCodecDescription*>(codec.get()); + vp8->EnableRtx("42"); + break; + } + } + + types.push_back(SdpMediaSection::kVideo); + AddTracks(*mSessionOff, "video"); + + std::vector<std::string> streamIds; + for (const auto& transceiver : mSessionOff->GetTransceivers()) { + if (!IsNull(transceiver->mSendTrack)) { + transceiver->mSendTrack.UpdateStreamIds(streamIds); + } + } + + // MSID stream absence should not influence FID ssrc-group + JsepOfferOptions options; + std::string offer; + JsepSession::Result result = mSessionOff->CreateOffer(options, &offer); + ASSERT_FALSE(result.mError.isSome()); + ASSERT_NE(std::string::npos, offer.find("FID")) << offer; +} + +TEST_F(JsepSessionTest, TestDuplicatePayloadTypes) { + for (auto& codec : mSessionOff->Codecs()) { + if (codec->Type() == SdpMediaSection::kVideo) { + JsepVideoCodecDescription* videoCodec = + static_cast<JsepVideoCodecDescription*>(codec.get()); + videoCodec->mRtxPayloadType = "97"; + videoCodec->EnableFec("97", "97"); + } + } + + types.push_back(SdpMediaSection::kVideo); + AddTracks(*mSessionOff, "video"); + AddTracks(*mSessionAns, "video"); + + OfferAnswer(); + + std::vector<sdp::Direction> directions = {sdp::kSend, sdp::kRecv}; + for (auto direction : directions) { + UniquePtr<JsepCodecDescription> codec; + std::set<std::string> payloadTypes; + std::string redPt, ulpfecPt; + for (size_t i = 0; i < 4; ++i) { + GetCodec(*mSessionOff, 0, direction, 0, i, &codec); + ASSERT_TRUE(codec); + JsepVideoCodecDescription* videoCodec = + static_cast<JsepVideoCodecDescription*>(codec.get()); + ASSERT_TRUE(payloadTypes.insert(videoCodec->mDefaultPt).second); + ASSERT_TRUE(payloadTypes.insert(videoCodec->mRtxPayloadType).second); + // ULPFEC and RED payload types are the same for each codec, so we only + // check them for the first one. + if (i == 0) { + ASSERT_TRUE(payloadTypes.insert(videoCodec->mREDPayloadType).second); + ASSERT_TRUE(payloadTypes.insert(videoCodec->mULPFECPayloadType).second); + redPt = videoCodec->mREDPayloadType; + ulpfecPt = videoCodec->mULPFECPayloadType; + } else { + ASSERT_TRUE(redPt == videoCodec->mREDPayloadType); + ASSERT_TRUE(ulpfecPt == videoCodec->mULPFECPayloadType); + } + } + } +} +} // namespace mozilla |