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webrtc / src.git / dc9ca9329b920dc3e5a0e9551582cfc22c0fa0ce / . / pc / webrtcsession_unittest.cc
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/*
* Copyright 2012 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include <memory>
#include <utility>
#include <vector>
#include "api/fakemetricsobserver.h"
#include "api/jsepicecandidate.h"
#include "api/jsepsessiondescription.h"
#include "media/base/fakemediaengine.h"
#include "media/base/fakevideorenderer.h"
#include "media/base/mediachannel.h"
#include "media/engine/fakewebrtccall.h"
#include "media/sctp/sctptransportinternal.h"
#include "p2p/base/packettransportinternal.h"
#include "p2p/base/stunserver.h"
#include "p2p/base/teststunserver.h"
#include "p2p/base/testturnserver.h"
#include "p2p/client/basicportallocator.h"
#include "pc/audiotrack.h"
#include "pc/channelmanager.h"
#include "pc/mediasession.h"
#include "pc/peerconnection.h"
#include "pc/sctputils.h"
#include "pc/test/fakertccertificategenerator.h"
#include "pc/videotrack.h"
#include "pc/webrtcsession.h"
#include "pc/webrtcsessiondescriptionfactory.h"
#include "rtc_base/checks.h"
#include "rtc_base/fakenetwork.h"
#include "rtc_base/firewallsocketserver.h"
#include "rtc_base/gunit.h"
#include "rtc_base/logging.h"
#include "rtc_base/stringutils.h"
#include "rtc_base/virtualsocketserver.h"
using cricket::FakeVoiceMediaChannel;
using cricket::TransportInfo;
using rtc::SocketAddress;
using rtc::Thread;
using webrtc::CreateSessionDescription;
using webrtc::CreateSessionDescriptionObserver;
using webrtc::CreateSessionDescriptionRequest;
using webrtc::DataChannel;
using webrtc::FakeMetricsObserver;
using webrtc::IceCandidateCollection;
using webrtc::InternalDataChannelInit;
using webrtc::JsepIceCandidate;
using webrtc::JsepSessionDescription;
using webrtc::PeerConnectionFactoryInterface;
using webrtc::PeerConnectionInterface;
using webrtc::SessionDescriptionInterface;
using webrtc::SessionStats;
using webrtc::StreamCollection;
using webrtc::WebRtcSession;
using webrtc::kBundleWithoutRtcpMux;
using webrtc::kCreateChannelFailed;
using webrtc::kInvalidSdp;
using webrtc::kMlineMismatchInAnswer;
using webrtc::kPushDownTDFailed;
using webrtc::kSdpWithoutIceUfragPwd;
using webrtc::kSdpWithoutDtlsFingerprint;
using webrtc::kSdpWithoutSdesCrypto;
using webrtc::kSessionError;
using webrtc::kSessionErrorDesc;
using webrtc::kMaxUnsignalledRecvStreams;
typedef PeerConnectionInterface::RTCOfferAnswerOptions RTCOfferAnswerOptions;
static const int kClientAddrPort = 0;
static const char kClientAddrHost1[] = "11.11.11.11";
static const char kStunAddrHost[] = "99.99.99.1";
static const char kSessionVersion[] = "1";
// Media index of candidates belonging to the first media content.
static const int kMediaContentIndex0 = 0;
static const char kMediaContentName0[] = "audio";
// Media index of candidates belonging to the second media content.
static const int kMediaContentIndex1 = 1;
static const char kMediaContentName1[] = "video";
static const int kDefaultTimeout = 10000; // 10 seconds.
static const int kIceCandidatesTimeout = 10000;
static const char kSdpWithRtx[] =
"v=0\r\n"
"o=- 4104004319237231850 2 IN IP4 127.0.0.1\r\n"
"s=-\r\n"
"t=0 0\r\n"
"a=msid-semantic: WMS stream1\r\n"
"m=video 9 RTP/SAVPF 0 96\r\n"
"c=IN IP4 0.0.0.0\r\n"
"a=rtcp:9 IN IP4 0.0.0.0\r\n"
"a=ice-ufrag:CerjGp19G7wpXwl7\r\n"
"a=ice-pwd:cMvOlFvQ6ochez1ZOoC2uBEC\r\n"
"a=mid:video\r\n"
"a=sendrecv\r\n"
"a=rtcp-mux\r\n"
"a=crypto:1 AES_CM_128_HMAC_SHA1_80 "
"inline:5/4N5CDvMiyDArHtBByUM71VIkguH17ZNoX60GrA\r\n"
"a=rtpmap:0 fake_video_codec/90000\r\n"
"a=rtpmap:96 rtx/90000\r\n"
"a=fmtp:96 apt=0\r\n";
static const char kStream1[] = "stream1";
static const char kVideoTrack1[] = "video1";
static const char kAudioTrack1[] = "audio1";
static const char kStream2[] = "stream2";
static const char kVideoTrack2[] = "video2";
static const char kAudioTrack2[] = "audio2";
static constexpr bool kStopped = true;
static constexpr bool kActive = false;
enum RTCCertificateGenerationMethod { ALREADY_GENERATED, DTLS_IDENTITY_STORE };
class MockIceObserver : public webrtc::IceObserver {
public:
MockIceObserver()
: oncandidatesready_(false),
ice_connection_state_(PeerConnectionInterface::kIceConnectionNew),
ice_gathering_state_(PeerConnectionInterface::kIceGatheringNew) {
}
virtual ~MockIceObserver() = default;
void OnIceConnectionStateChange(
PeerConnectionInterface::IceConnectionState new_state) override {
ice_connection_state_ = new_state;
ice_connection_state_history_.push_back(new_state);
}
void OnIceGatheringChange(
PeerConnectionInterface::IceGatheringState new_state) override {
// We can never transition back to "new".
EXPECT_NE(PeerConnectionInterface::kIceGatheringNew, new_state);
ice_gathering_state_ = new_state;
oncandidatesready_ =
new_state == PeerConnectionInterface::kIceGatheringComplete;
}
// Found a new candidate.
void OnIceCandidate(
std::unique_ptr<webrtc::IceCandidateInterface> candidate) override {
switch (candidate->sdp_mline_index()) {
case kMediaContentIndex0:
mline_0_candidates_.push_back(candidate->candidate());
break;
case kMediaContentIndex1:
mline_1_candidates_.push_back(candidate->candidate());
break;
default:
RTC_NOTREACHED();
}
// The ICE gathering state should always be Gathering when a candidate is
// received (or possibly Completed in the case of the final candidate).
EXPECT_NE(PeerConnectionInterface::kIceGatheringNew, ice_gathering_state_);
}
// Some local candidates are removed.
void OnIceCandidatesRemoved(
const std::vector<cricket::Candidate>& candidates) override {
num_candidates_removed_ += candidates.size();
}
bool oncandidatesready_;
std::vector<cricket::Candidate> mline_0_candidates_;
std::vector<cricket::Candidate> mline_1_candidates_;
PeerConnectionInterface::IceConnectionState ice_connection_state_;
PeerConnectionInterface::IceGatheringState ice_gathering_state_;
std::vector<PeerConnectionInterface::IceConnectionState>
ice_connection_state_history_;
size_t num_candidates_removed_ = 0;
};
// Used for tests in this file to verify that WebRtcSession responds to signals
// from the SctpTransport correctly, and calls Start with the correct
// local/remote ports.
class FakeSctpTransport : public cricket::SctpTransportInternal {
public:
void SetTransportChannel(rtc::PacketTransportInternal* channel) override {}
bool Start(int local_port, int remote_port) override {
local_port_ = local_port;
remote_port_ = remote_port;
return true;
}
bool OpenStream(int sid) override { return true; }
bool ResetStream(int sid) override { return true; }
bool SendData(const cricket::SendDataParams& params,
const rtc::CopyOnWriteBuffer& payload,
cricket::SendDataResult* result = nullptr) override {
return true;
}
bool ReadyToSendData() override { return true; }
void set_debug_name_for_testing(const char* debug_name) override {}
int local_port() const { return local_port_; }
int remote_port() const { return remote_port_; }
private:
int local_port_ = -1;
int remote_port_ = -1;
};
class FakeSctpTransportFactory : public cricket::SctpTransportInternalFactory {
public:
std::unique_ptr<cricket::SctpTransportInternal> CreateSctpTransport(
rtc::PacketTransportInternal*) override {
last_fake_sctp_transport_ = new FakeSctpTransport();
return std::unique_ptr<cricket::SctpTransportInternal>(
last_fake_sctp_transport_);
}
FakeSctpTransport* last_fake_sctp_transport() {
return last_fake_sctp_transport_;
}
private:
FakeSctpTransport* last_fake_sctp_transport_ = nullptr;
};
class WebRtcSessionForTest : public webrtc::WebRtcSession {
public:
WebRtcSessionForTest(
webrtc::Call* fake_call,
cricket::ChannelManager* channel_manager,
const cricket::MediaConfig& media_config,
webrtc::RtcEventLog* event_log,
rtc::Thread* network_thread,
rtc::Thread* worker_thread,
rtc::Thread* signaling_thread,
cricket::PortAllocator* port_allocator,
webrtc::IceObserver* ice_observer,
std::unique_ptr<cricket::TransportController> transport_controller,
std::unique_ptr<FakeSctpTransportFactory> sctp_factory)
: WebRtcSession(fake_call, channel_manager, media_config, event_log,
network_thread,
worker_thread,
signaling_thread,
port_allocator,
std::move(transport_controller),
std::move(sctp_factory)) {
RegisterIceObserver(ice_observer);
}
virtual ~WebRtcSessionForTest() {}
// Note that these methods are only safe to use if the signaling thread
// is the same as the worker thread
rtc::PacketTransportInternal* voice_rtp_transport_channel() {
return rtp_transport_channel(voice_channel());
}
rtc::PacketTransportInternal* voice_rtcp_transport_channel() {
return rtcp_transport_channel(voice_channel());
}
rtc::PacketTransportInternal* video_rtp_transport_channel() {
return rtp_transport_channel(video_channel());
}
rtc::PacketTransportInternal* video_rtcp_transport_channel() {
return rtcp_transport_channel(video_channel());
}
private:
rtc::PacketTransportInternal* rtp_transport_channel(
cricket::BaseChannel* ch) {
if (!ch) {
return nullptr;
}
return ch->rtp_dtls_transport();
}
rtc::PacketTransportInternal* rtcp_transport_channel(
cricket::BaseChannel* ch) {
if (!ch) {
return nullptr;
}
return ch->rtcp_dtls_transport();
}
};
class WebRtcSessionCreateSDPObserverForTest
: public rtc::RefCountedObject<CreateSessionDescriptionObserver> {
public:
enum State {
kInit,
kFailed,
kSucceeded,
};
WebRtcSessionCreateSDPObserverForTest() : state_(kInit) {}
// CreateSessionDescriptionObserver implementation.
virtual void OnSuccess(SessionDescriptionInterface* desc) {
description_.reset(desc);
state_ = kSucceeded;
}
virtual void OnFailure(const std::string& error) {
state_ = kFailed;
}
SessionDescriptionInterface* description() { return description_.get(); }
SessionDescriptionInterface* ReleaseDescription() {
return description_.release();
}
State state() const { return state_; }
protected:
~WebRtcSessionCreateSDPObserverForTest() {}
private:
std::unique_ptr<SessionDescriptionInterface> description_;
State state_;
};
class WebRtcSessionTest
: public testing::TestWithParam<RTCCertificateGenerationMethod>,
public sigslot::has_slots<> {
protected:
// TODO Investigate why ChannelManager crashes, if it's created
// after stun_server.
WebRtcSessionTest()
: vss_(new rtc::VirtualSocketServer()),
fss_(new rtc::FirewallSocketServer(vss_.get())),
thread_(fss_.get()),
media_engine_(new cricket::FakeMediaEngine()),
data_engine_(new cricket::FakeDataEngine()),
channel_manager_(new cricket::ChannelManager(
std::unique_ptr<cricket::MediaEngineInterface>(media_engine_),
std::unique_ptr<cricket::DataEngineInterface>(data_engine_),
rtc::Thread::Current())),
fake_call_(webrtc::Call::Config(&event_log_)),
tdesc_factory_(new cricket::TransportDescriptionFactory()),
desc_factory_(
new cricket::MediaSessionDescriptionFactory(channel_manager_.get(),
tdesc_factory_.get())),
stun_socket_addr_(
rtc::SocketAddress(kStunAddrHost, cricket::STUN_SERVER_PORT)),
stun_server_(cricket::TestStunServer::Create(Thread::Current(),
stun_socket_addr_)),
metrics_observer_(new rtc::RefCountedObject<FakeMetricsObserver>()) {
cricket::ServerAddresses stun_servers;
stun_servers.insert(stun_socket_addr_);
allocator_.reset(new cricket::BasicPortAllocator(
&network_manager_,
stun_servers,
SocketAddress(), SocketAddress(), SocketAddress()));
allocator_->set_flags(cricket::PORTALLOCATOR_DISABLE_TCP |
cricket::PORTALLOCATOR_DISABLE_RELAY);
EXPECT_TRUE(channel_manager_->Init());
allocator_->set_step_delay(cricket::kMinimumStepDelay);
}
void AddInterface(const SocketAddress& addr) {
network_manager_.AddInterface(addr);
}
// If |cert_generator| != null or |rtc_configuration| contains |certificates|
// then DTLS will be enabled unless explicitly disabled by |rtc_configuration|
// options. When DTLS is enabled a certificate will be used if provided,
// otherwise one will be generated using the |cert_generator|.
void Init(
std::unique_ptr<rtc::RTCCertificateGeneratorInterface> cert_generator,
PeerConnectionInterface::RtcpMuxPolicy rtcp_mux_policy,
const rtc::CryptoOptions& crypto_options) {
ASSERT_TRUE(session_.get() == NULL);
fake_sctp_transport_factory_ = new FakeSctpTransportFactory();
session_.reset(new WebRtcSessionForTest(&fake_call_,
channel_manager_.get(), cricket::MediaConfig(), &event_log_,
rtc::Thread::Current(), rtc::Thread::Current(),
rtc::Thread::Current(), allocator_.get(), &observer_,
std::unique_ptr<cricket::TransportController>(
new cricket::TransportController(
rtc::Thread::Current(), rtc::Thread::Current(),
allocator_.get(),
/*redetermine_role_on_ice_restart=*/true, crypto_options)),
std::unique_ptr<FakeSctpTransportFactory>(
fake_sctp_transport_factory_)));
session_->SignalDataChannelOpenMessage.connect(
this, &WebRtcSessionTest::OnDataChannelOpenMessage);
configuration_.rtcp_mux_policy = rtcp_mux_policy;
EXPECT_EQ(PeerConnectionInterface::kIceConnectionNew,
observer_.ice_connection_state_);
EXPECT_EQ(PeerConnectionInterface::kIceGatheringNew,
observer_.ice_gathering_state_);
EXPECT_TRUE(session_->Initialize(options_, std::move(cert_generator),
configuration_));
session_->set_metrics_observer(metrics_observer_);
crypto_options_ = crypto_options;
}
void OnDataChannelOpenMessage(const std::string& label,
const InternalDataChannelInit& config) {
last_data_channel_label_ = label;
last_data_channel_config_ = config;
}
void Init() {
Init(nullptr, PeerConnectionInterface::kRtcpMuxPolicyNegotiate,
rtc::CryptoOptions());
}
void InitWithBundlePolicy(
PeerConnectionInterface::BundlePolicy bundle_policy) {
configuration_.bundle_policy = bundle_policy;
Init();
}
void InitWithRtcpMuxPolicy(
PeerConnectionInterface::RtcpMuxPolicy rtcp_mux_policy) {
PeerConnectionInterface::RTCConfiguration configuration;
Init(nullptr, rtcp_mux_policy, rtc::CryptoOptions());
}
// Successfully init with DTLS; with a certificate generated and supplied or
// with a store that generates it for us.
void InitWithDtls(RTCCertificateGenerationMethod cert_gen_method) {
std::unique_ptr<FakeRTCCertificateGenerator> cert_generator;
if (cert_gen_method == ALREADY_GENERATED) {
configuration_.certificates.push_back(
FakeRTCCertificateGenerator::GenerateCertificate());
} else if (cert_gen_method == DTLS_IDENTITY_STORE) {
cert_generator.reset(new FakeRTCCertificateGenerator());
cert_generator->set_should_fail(false);
} else {
RTC_CHECK(false);
}
Init(std::move(cert_generator),
PeerConnectionInterface::kRtcpMuxPolicyNegotiate,
rtc::CryptoOptions());
}
// The following convenience functions can be applied for both local side and
// remote side. The flags can be overwritten for different use cases.
void SendAudioVideoStream1() {
send_stream_1_ = true;
send_stream_2_ = false;
local_send_audio_ = true;
local_send_video_ = true;
remote_send_audio_ = true;
remote_send_video_ = true;
}
void SendAudioVideoStream2() {
send_stream_1_ = false;
send_stream_2_ = true;
local_send_audio_ = true;
local_send_video_ = true;
remote_send_audio_ = true;
remote_send_video_ = true;
}
void SendAudioVideoStream1And2() {
send_stream_1_ = true;
send_stream_2_ = true;
local_send_audio_ = true;
local_send_video_ = true;
remote_send_audio_ = true;
remote_send_video_ = true;
}
void SendNothing() {
send_stream_1_ = false;
send_stream_2_ = false;
local_send_audio_ = false;
local_send_video_ = false;
remote_send_audio_ = false;
remote_send_video_ = false;
}
void SendAudioOnlyStream2() {
send_stream_1_ = false;
send_stream_2_ = true;
local_send_audio_ = true;
local_send_video_ = false;
remote_send_audio_ = true;
remote_send_video_ = false;
}
void SendVideoOnlyStream2() {
send_stream_1_ = false;
send_stream_2_ = true;
local_send_audio_ = false;
local_send_video_ = true;
remote_send_audio_ = false;
remote_send_video_ = true;
}
// Helper function used to add a specific media section to the
// |session_options|.
void AddMediaSection(cricket::MediaType type,
const std::string& mid,
cricket::MediaContentDirection direction,
bool stopped,
cricket::MediaSessionOptions* opts) {
opts->media_description_options.push_back(cricket::MediaDescriptionOptions(
type, mid,
cricket::RtpTransceiverDirection::FromMediaContentDirection(direction),
stopped));
}
// Add the media sections to the options from |offered_media_sections_| when
// creating an answer or a new offer.
// This duplicates a lot of logic from PeerConnection but this can be fixed
// when PeerConnection and WebRtcSession are merged.
void AddExistingMediaSectionsAndSendersToOptions(
cricket::MediaSessionOptions* session_options,
bool send_audio,
bool recv_audio,
bool send_video,
bool recv_video) {
int num_sim_layer = 1;
for (auto media_description_options : offered_media_sections_) {
if (media_description_options.type == cricket::MEDIA_TYPE_AUDIO) {
bool stopped = !send_audio && !recv_audio;
auto media_desc_options = cricket::MediaDescriptionOptions(
cricket::MEDIA_TYPE_AUDIO, media_description_options.mid,
cricket::RtpTransceiverDirection(send_audio, recv_audio), stopped);
if (send_stream_1_ && send_audio) {
media_desc_options.AddAudioSender(kAudioTrack1, {kStream1});
}
if (send_stream_2_ && send_audio) {
media_desc_options.AddAudioSender(kAudioTrack2, {kStream2});
}
session_options->media_description_options.push_back(
media_desc_options);
} else if (media_description_options.type == cricket::MEDIA_TYPE_VIDEO) {
bool stopped = !send_video && !recv_video;
auto media_desc_options = cricket::MediaDescriptionOptions(
cricket::MEDIA_TYPE_VIDEO, media_description_options.mid,
cricket::RtpTransceiverDirection(send_video, recv_video), stopped);
if (send_stream_1_ && send_video) {
media_desc_options.AddVideoSender(kVideoTrack1, {kStream1},
num_sim_layer);
}
if (send_stream_2_ && send_video) {
media_desc_options.AddVideoSender(kVideoTrack2, {kStream2},
num_sim_layer);
}
session_options->media_description_options.push_back(
media_desc_options);
} else if (media_description_options.type == cricket::MEDIA_TYPE_DATA) {
session_options->media_description_options.push_back(
cricket::MediaDescriptionOptions(
cricket::MEDIA_TYPE_DATA, media_description_options.mid,
// Direction for data sections is meaningless, but legacy
// endpoints might expect sendrecv.
cricket::RtpTransceiverDirection(true, true), false));
} else {
RTC_NOTREACHED();
}
}
}
// Add the existing media sections first and then add new media sections if
// needed.
void AddMediaSectionsAndSendersToOptions(
cricket::MediaSessionOptions* session_options,
bool send_audio,
bool recv_audio,
bool send_video,
bool recv_video) {
AddExistingMediaSectionsAndSendersToOptions(
session_options, send_audio, recv_audio, send_video, recv_video);
if (!session_options->has_audio() && (send_audio || recv_audio)) {
cricket::MediaDescriptionOptions media_desc_options =
cricket::MediaDescriptionOptions(
cricket::MEDIA_TYPE_AUDIO, cricket::CN_AUDIO,
cricket::RtpTransceiverDirection(send_audio, recv_audio),
kActive);
if (send_stream_1_ && send_audio) {
media_desc_options.AddAudioSender(kAudioTrack1, {kStream1});
}
if (send_stream_2_ && send_audio) {
media_desc_options.AddAudioSender(kAudioTrack2, {kStream2});
}
session_options->media_description_options.push_back(media_desc_options);
offered_media_sections_.push_back(media_desc_options);
}
if (!session_options->has_video() && (send_video || recv_video)) {
cricket::MediaDescriptionOptions media_desc_options =
cricket::MediaDescriptionOptions(
cricket::MEDIA_TYPE_VIDEO, cricket::CN_VIDEO,
cricket::RtpTransceiverDirection(send_video, recv_video),
kActive);
int num_sim_layer = 1;
if (send_stream_1_ && send_video) {
media_desc_options.AddVideoSender(kVideoTrack1, {kStream1},
num_sim_layer);
}
if (send_stream_2_ && send_video) {
media_desc_options.AddVideoSender(kVideoTrack2, {kStream2},
num_sim_layer);
}
session_options->media_description_options.push_back(media_desc_options);
offered_media_sections_.push_back(media_desc_options);
}
if (!session_options->has_data() &&
(data_channel_ ||
session_options->data_channel_type != cricket::DCT_NONE)) {
cricket::MediaDescriptionOptions media_desc_options =
cricket::MediaDescriptionOptions(
cricket::MEDIA_TYPE_DATA, cricket::CN_DATA,
cricket::RtpTransceiverDirection(true, true), kActive);
if (session_options->data_channel_type == cricket::DCT_RTP) {
media_desc_options.AddRtpDataChannel(data_channel_->label(),
data_channel_->label());
}
session_options->media_description_options.push_back(media_desc_options);
offered_media_sections_.push_back(media_desc_options);
}
}
void GetOptionsForOffer(
const PeerConnectionInterface::RTCOfferAnswerOptions& rtc_options,
cricket::MediaSessionOptions* session_options) {
ExtractSharedMediaSessionOptions(rtc_options, session_options);
// |recv_X| is true by default if |offer_to_receive_X| is undefined.
bool recv_audio = rtc_options.offer_to_receive_audio != 0;
bool recv_video = rtc_options.offer_to_receive_video != 0;
AddMediaSectionsAndSendersToOptions(session_options, local_send_audio_,
recv_audio, local_send_video_,
recv_video);
session_options->bundle_enabled =
session_options->bundle_enabled &&
(session_options->has_audio() || session_options->has_video() ||
session_options->has_data());
session_options->crypto_options = crypto_options_;
}
void GetOptionsForAnswer(cricket::MediaSessionOptions* session_options) {
AddExistingMediaSectionsAndSendersToOptions(
session_options, local_send_audio_, local_recv_audio_,
local_send_video_, local_recv_video_);
session_options->bundle_enabled =
session_options->bundle_enabled &&
(session_options->has_audio() || session_options->has_video() ||
session_options->has_data());
if (session_->data_channel_type() != cricket::DCT_RTP) {
session_options->data_channel_type = session_->data_channel_type();
}
session_options->crypto_options = crypto_options_;
}
void GetOptionsForRemoteAnswer(
cricket::MediaSessionOptions* session_options) {
bool recv_audio = local_send_audio_ || remote_recv_audio_;
bool recv_video = local_send_video_ || remote_recv_video_;
bool send_audio = false;
bool send_video = false;
AddExistingMediaSectionsAndSendersToOptions(
session_options, send_audio, recv_audio, send_video, recv_video);
session_options->bundle_enabled =
session_options->bundle_enabled &&
(session_options->has_audio() || session_options->has_video() ||
session_options->has_data());
if (session_->data_channel_type() != cricket::DCT_RTP) {
session_options->data_channel_type = session_->data_channel_type();
}
session_options->crypto_options = crypto_options_;
}
void GetOptionsForAudioOnlyRemoteOffer(
cricket::MediaSessionOptions* session_options) {
remote_recv_audio_ = true;
remote_recv_video_ = false;
GetOptionsForRemoteOffer(session_options);
}
void GetOptionsForRemoteOffer(cricket::MediaSessionOptions* session_options) {
AddMediaSectionsAndSendersToOptions(session_options, remote_send_audio_,
remote_recv_audio_, remote_send_video_,
remote_recv_video_);
session_options->bundle_enabled =
(session_options->has_audio() || session_options->has_video() ||
session_options->has_data());
if (session_->data_channel_type() != cricket::DCT_RTP) {
session_options->data_channel_type = session_->data_channel_type();
}
session_options->crypto_options = crypto_options_;
}
// Creates a local offer and applies it. Starts ICE.
// Call SendAudioVideoStreamX() before this function
// to decide which streams to create.
void InitiateCall() {
SessionDescriptionInterface* offer = CreateOffer();
SetLocalDescriptionWithoutError(offer);
EXPECT_TRUE_WAIT(PeerConnectionInterface::kIceGatheringNew !=
observer_.ice_gathering_state_,
kIceCandidatesTimeout);
}
SessionDescriptionInterface* CreateOffer() {
PeerConnectionInterface::RTCOfferAnswerOptions options;
options.offer_to_receive_audio =
RTCOfferAnswerOptions::kOfferToReceiveMediaTrue;
return CreateOffer(options);
}
SessionDescriptionInterface* CreateOffer(
const PeerConnectionInterface::RTCOfferAnswerOptions options) {
rtc::scoped_refptr<WebRtcSessionCreateSDPObserverForTest>
observer = new WebRtcSessionCreateSDPObserverForTest();
cricket::MediaSessionOptions session_options;
GetOptionsForOffer(options, &session_options);
session_->CreateOffer(observer, options, session_options);
EXPECT_TRUE_WAIT(
observer->state() != WebRtcSessionCreateSDPObserverForTest::kInit,
2000);
return observer->ReleaseDescription();
}
SessionDescriptionInterface* CreateAnswer(
const cricket::MediaSessionOptions& options) {
rtc::scoped_refptr<WebRtcSessionCreateSDPObserverForTest> observer
= new WebRtcSessionCreateSDPObserverForTest();
cricket::MediaSessionOptions session_options = options;
GetOptionsForAnswer(&session_options);
session_->CreateAnswer(observer, session_options);
EXPECT_TRUE_WAIT(
observer->state() != WebRtcSessionCreateSDPObserverForTest::kInit,
2000);
return observer->ReleaseDescription();
}
SessionDescriptionInterface* CreateAnswer() {
cricket::MediaSessionOptions options;
options.bundle_enabled = true;
return CreateAnswer(options);
}
// Set the internal fake description factories to do DTLS-SRTP.
void SetFactoryDtlsSrtp() {
desc_factory_->set_secure(cricket::SEC_DISABLED);
std::string identity_name = "WebRTC" +
rtc::ToString(rtc::CreateRandomId());
// Confirmed to work with KT_RSA and KT_ECDSA.
tdesc_factory_->set_certificate(
rtc::RTCCertificate::Create(std::unique_ptr<rtc::SSLIdentity>(
rtc::SSLIdentity::Generate(identity_name, rtc::KT_DEFAULT))));
tdesc_factory_->set_secure(cricket::SEC_REQUIRED);
}
// Compares ufrag/password only for the specified |media_type|.
bool IceUfragPwdEqual(const cricket::SessionDescription* desc1,
const cricket::SessionDescription* desc2,
cricket::MediaType media_type) {
if (desc1->contents().size() != desc2->contents().size()) {
return false;
}
const cricket::ContentInfo* cinfo =
cricket::GetFirstMediaContent(desc1->contents(), media_type);
const cricket::TransportDescription* transport_desc1 =
desc1->GetTransportDescriptionByName(cinfo->name);
const cricket::TransportDescription* transport_desc2 =
desc2->GetTransportDescriptionByName(cinfo->name);
if (!transport_desc1 || !transport_desc2) {
return false;
}
if (transport_desc1->ice_pwd != transport_desc2->ice_pwd ||
transport_desc1->ice_ufrag != transport_desc2->ice_ufrag) {
return false;
}
return true;
}
// Sets ufrag/pwd for specified |media_type|.
void SetIceUfragPwd(SessionDescriptionInterface* current_desc,
cricket::MediaType media_type,
const std::string& ufrag,
const std::string& pwd) {
cricket::SessionDescription* desc = current_desc->description();
const cricket::ContentInfo* cinfo =
cricket::GetFirstMediaContent(desc->contents(), media_type);
TransportInfo* transport_info = desc->GetTransportInfoByName(cinfo->name);
cricket::TransportDescription* transport_desc =
&transport_info->description;
transport_desc->ice_ufrag = ufrag;
transport_desc->ice_pwd = pwd;
}
// Creates a remote offer and and applies it as a remote description,
// creates a local answer and applies is as a local description.
// Call SendAudioVideoStreamX() before this function
// to decide which local and remote streams to create.
void CreateAndSetRemoteOfferAndLocalAnswer() {
SessionDescriptionInterface* offer = CreateRemoteOffer();
SetRemoteDescriptionWithoutError(offer);
SessionDescriptionInterface* answer = CreateAnswer();
SetLocalDescriptionWithoutError(answer);
}
void SetLocalDescriptionWithoutError(SessionDescriptionInterface* desc) {
ASSERT_TRUE(session_->SetLocalDescription(desc, nullptr));
session_->MaybeStartGathering();
}
void SetLocalDescriptionExpectState(SessionDescriptionInterface* desc,
WebRtcSession::State expected_state) {
SetLocalDescriptionWithoutError(desc);
EXPECT_EQ(expected_state, session_->state());
}
void SetLocalDescriptionExpectError(const std::string& action,
const std::string& expected_error,
SessionDescriptionInterface* desc) {
std::string error;
EXPECT_FALSE(session_->SetLocalDescription(desc, &error));
std::string sdp_type = "local ";
sdp_type.append(action);
EXPECT_NE(std::string::npos, error.find(sdp_type));
EXPECT_NE(std::string::npos, error.find(expected_error));
}
void SetLocalDescriptionOfferExpectError(const std::string& expected_error,
SessionDescriptionInterface* desc) {
SetLocalDescriptionExpectError(SessionDescriptionInterface::kOffer,
expected_error, desc);
}
void SetLocalDescriptionAnswerExpectError(const std::string& expected_error,
SessionDescriptionInterface* desc) {
SetLocalDescriptionExpectError(SessionDescriptionInterface::kAnswer,
expected_error, desc);
}
void SetRemoteDescriptionWithoutError(SessionDescriptionInterface* desc) {
ASSERT_TRUE(session_->SetRemoteDescription(desc, nullptr));
}
void SetRemoteDescriptionExpectState(SessionDescriptionInterface* desc,
WebRtcSession::State expected_state) {
SetRemoteDescriptionWithoutError(desc);
EXPECT_EQ(expected_state, session_->state());
}
void SetRemoteDescriptionExpectError(const std::string& action,
const std::string& expected_error,
SessionDescriptionInterface* desc) {
std::string error;
EXPECT_FALSE(session_->SetRemoteDescription(desc, &error));
std::string sdp_type = "remote ";
sdp_type.append(action);
EXPECT_NE(std::string::npos, error.find(sdp_type));
EXPECT_NE(std::string::npos, error.find(expected_error));
}
void SetRemoteDescriptionOfferExpectError(
const std::string& expected_error, SessionDescriptionInterface* desc) {
SetRemoteDescriptionExpectError(SessionDescriptionInterface::kOffer,
expected_error, desc);
}
void SetRemoteDescriptionAnswerExpectError(
const std::string& expected_error, SessionDescriptionInterface* desc) {
SetRemoteDescriptionExpectError(SessionDescriptionInterface::kAnswer,
expected_error, desc);
}
JsepSessionDescription* CreateRemoteOfferWithVersion(
cricket::MediaSessionOptions options,
cricket::SecurePolicy secure_policy,
const std::string& session_version,
const SessionDescriptionInterface* current_desc) {
std::string session_id = rtc::ToString(rtc::CreateRandomId64());
const cricket::SessionDescription* cricket_desc = NULL;
if (current_desc) {
cricket_desc = current_desc->description();
session_id = current_desc->session_id();
}
desc_factory_->set_secure(secure_policy);
JsepSessionDescription* offer(
new JsepSessionDescription(JsepSessionDescription::kOffer));
if (!offer->Initialize(desc_factory_->CreateOffer(options, cricket_desc),
session_id, session_version)) {
delete offer;
offer = NULL;
}
return offer;
}
JsepSessionDescription* CreateRemoteOffer(
cricket::MediaSessionOptions options) {
return CreateRemoteOfferWithVersion(options, cricket::SEC_ENABLED,
kSessionVersion, NULL);
}
JsepSessionDescription* CreateRemoteOffer(
cricket::MediaSessionOptions options, cricket::SecurePolicy sdes_policy) {
return CreateRemoteOfferWithVersion(
options, sdes_policy, kSessionVersion, NULL);
}
JsepSessionDescription* CreateRemoteOffer(
cricket::MediaSessionOptions options,
const SessionDescriptionInterface* current_desc) {
return CreateRemoteOfferWithVersion(options, cricket::SEC_ENABLED,
kSessionVersion, current_desc);
}
SessionDescriptionInterface* CreateRemoteOfferWithSctpPort(
const char* sctp_stream_name,
int new_port,
cricket::MediaSessionOptions options) {
options.data_channel_type = cricket::DCT_SCTP;
GetOptionsForRemoteOffer(&options);
return ChangeSDPSctpPort(new_port, CreateRemoteOffer(options));
}
// Takes ownership of offer_basis (and deletes it).
SessionDescriptionInterface* ChangeSDPSctpPort(
int new_port,
webrtc::SessionDescriptionInterface* offer_basis) {
// Stringify the input SDP, swap the 5000 for 'new_port' and create a new
// SessionDescription from the mutated string.
const char* default_port_str = "5000";
char new_port_str[16];
rtc::sprintfn(new_port_str, sizeof(new_port_str), "%d", new_port);
std::string offer_str;
offer_basis->ToString(&offer_str);
rtc::replace_substrs(default_port_str, strlen(default_port_str),
new_port_str, strlen(new_port_str),
&offer_str);
SessionDescriptionInterface* offer =
CreateSessionDescription(offer_basis->type(), offer_str, nullptr);
delete offer_basis;
return offer;
}
// Create a remote offer. Call SendAudioVideoStreamX()
// before this function to decide which streams to create.
JsepSessionDescription* CreateRemoteOffer() {
cricket::MediaSessionOptions options;
GetOptionsForRemoteOffer(&options);
return CreateRemoteOffer(options, session_->remote_description());
}
JsepSessionDescription* CreateRemoteAnswer(
const SessionDescriptionInterface* offer,
cricket::MediaSessionOptions options,
cricket::SecurePolicy policy) {
desc_factory_->set_secure(policy);
const std::string session_id =
rtc::ToString(rtc::CreateRandomId64());
JsepSessionDescription* answer(
new JsepSessionDescription(JsepSessionDescription::kAnswer));
if (!answer->Initialize(desc_factory_->CreateAnswer(offer->description(),
options, NULL),
session_id, kSessionVersion)) {
delete answer;
answer = NULL;
}
return answer;
}
JsepSessionDescription* CreateRemoteAnswer(
const SessionDescriptionInterface* offer,
cricket::MediaSessionOptions options) {
return CreateRemoteAnswer(offer, options, cricket::SEC_REQUIRED);
}
// Creates an answer session description.
// Call SendAudioVideoStreamX() before this function
// to decide which streams to create.
JsepSessionDescription* CreateRemoteAnswer(
const SessionDescriptionInterface* offer) {
cricket::MediaSessionOptions options;
GetOptionsForAnswer(&options);
options.bundle_enabled = true;
return CreateRemoteAnswer(offer, options, cricket::SEC_REQUIRED);
}
void TestSessionCandidatesWithBundleRtcpMux(bool bundle, bool rtcp_mux) {
AddInterface(rtc::SocketAddress(kClientAddrHost1, kClientAddrPort));
Init();
SendAudioVideoStream1();
PeerConnectionInterface::RTCOfferAnswerOptions options;
options.use_rtp_mux = bundle;
SessionDescriptionInterface* offer = CreateOffer(options);
// SetLocalDescription and SetRemoteDescriptions takes ownership of offer
// and answer.
SetLocalDescriptionWithoutError(offer);
std::unique_ptr<SessionDescriptionInterface> answer(
CreateRemoteAnswer(session_->local_description()));
std::string sdp;
EXPECT_TRUE(answer->ToString(&sdp));
size_t expected_candidate_num = 2;
if (!rtcp_mux) {
// If rtcp_mux is enabled we should expect 4 candidates - host and srflex
// for rtp and rtcp.
expected_candidate_num = 4;
// Disable rtcp-mux from the answer
const std::string kRtcpMux = "a=rtcp-mux";
const std::string kXRtcpMux = "a=xrtcp-mux";
rtc::replace_substrs(kRtcpMux.c_str(), kRtcpMux.length(),
kXRtcpMux.c_str(), kXRtcpMux.length(),
&sdp);
}
SessionDescriptionInterface* new_answer = CreateSessionDescription(
JsepSessionDescription::kAnswer, sdp, NULL);
// SetRemoteDescription to enable rtcp mux.
SetRemoteDescriptionWithoutError(new_answer);
EXPECT_TRUE_WAIT(observer_.oncandidatesready_, kIceCandidatesTimeout);
EXPECT_EQ(expected_candidate_num, observer_.mline_0_candidates_.size());
if (bundle) {
EXPECT_EQ(0, observer_.mline_1_candidates_.size());
} else {
EXPECT_EQ(expected_candidate_num, observer_.mline_1_candidates_.size());
}
}
bool ContainsVideoCodecWithName(const SessionDescriptionInterface* desc,
const std::string& codec_name) {
for (const auto& content : desc->description()->contents()) {
if (static_cast<cricket::MediaContentDescription*>(content.description)
->type() == cricket::MEDIA_TYPE_VIDEO) {
const auto* mdesc =
static_cast<cricket::VideoContentDescription*>(content.description);
for (const auto& codec : mdesc->codecs()) {
if (codec.name == codec_name) {
return true;
}
}
}
}
return false;
}
// The method sets up a call from the session to itself, in a loopback
// arrangement. It also uses a firewall rule to create a temporary
// disconnection, and then a permanent disconnection.
// This code is placed in a method so that it can be invoked
// by multiple tests with different allocators (e.g. with and without BUNDLE).
// While running the call, this method also checks if the session goes through
// the correct sequence of ICE states when a connection is established,
// broken, and re-established.
// The Connection state should go:
// New -> Checking -> (Connected) -> Completed -> Disconnected -> Completed
// -> Failed.
// The Gathering state should go: New -> Gathering -> Completed.
void SetupLoopbackCall() {
Init();
SendAudioVideoStream1();
SessionDescriptionInterface* offer = CreateOffer();
EXPECT_EQ(PeerConnectionInterface::kIceGatheringNew,
observer_.ice_gathering_state_);
SetLocalDescriptionWithoutError(offer);
EXPECT_EQ(PeerConnectionInterface::kIceConnectionNew,
observer_.ice_connection_state_);
EXPECT_EQ_WAIT(PeerConnectionInterface::kIceGatheringGathering,
observer_.ice_gathering_state_, kIceCandidatesTimeout);
EXPECT_TRUE_WAIT(observer_.oncandidatesready_, kIceCandidatesTimeout);
EXPECT_EQ_WAIT(PeerConnectionInterface::kIceGatheringComplete,
observer_.ice_gathering_state_, kIceCandidatesTimeout);
std::string sdp;
offer->ToString(&sdp);
SessionDescriptionInterface* desc = webrtc::CreateSessionDescription(
JsepSessionDescription::kAnswer, sdp, nullptr);
ASSERT_TRUE(desc != NULL);
SetRemoteDescriptionWithoutError(desc);
EXPECT_EQ_WAIT(PeerConnectionInterface::kIceConnectionChecking,
observer_.ice_connection_state_, kIceCandidatesTimeout);
// The ice connection state is "Connected" too briefly to catch in a test.
EXPECT_EQ_WAIT(PeerConnectionInterface::kIceConnectionCompleted,
observer_.ice_connection_state_, kIceCandidatesTimeout);
}
void TestPacketOptions() {
AddInterface(rtc::SocketAddress(kClientAddrHost1, kClientAddrPort));
SetupLoopbackCall();
// Wait for channel to be ready for sending.
EXPECT_TRUE_WAIT(media_engine_->GetVideoChannel(0)->sending(), 100);
uint8_t test_packet[15] = {0};
rtc::PacketOptions options;
options.packet_id = 10;
media_engine_->GetVideoChannel(0)
->SendRtp(test_packet, sizeof(test_packet), options);
const int kPacketTimeout = 2000;
EXPECT_EQ_WAIT(10, fake_call_.last_sent_nonnegative_packet_id(),
kPacketTimeout);
EXPECT_GT(fake_call_.last_sent_packet().send_time_ms, -1);
}
// Adds CN codecs to FakeMediaEngine and MediaDescriptionFactory.
void AddCNCodecs() {
const cricket::AudioCodec kCNCodec1(102, "CN", 8000, 0, 1);
const cricket::AudioCodec kCNCodec2(103, "CN", 16000, 0, 1);
// Add kCNCodec for dtmf test.
std::vector<cricket::AudioCodec> codecs =
media_engine_->audio_send_codecs();
codecs.push_back(kCNCodec1);
codecs.push_back(kCNCodec2);
media_engine_->SetAudioCodecs(codecs);
desc_factory_->set_audio_codecs(codecs, codecs);
}
bool VerifyNoCNCodecs(const cricket::ContentInfo* content) {
const cricket::ContentDescription* description = content->description;
RTC_CHECK(description != NULL);
const cricket::AudioContentDescription* audio_content_desc =
static_cast<const cricket::AudioContentDescription*>(description);
RTC_CHECK(audio_content_desc != NULL);
for (size_t i = 0; i < audio_content_desc->codecs().size(); ++i) {
if (audio_content_desc->codecs()[i].name == "CN")
return false;
}
return true;
}
void CreateDataChannel() {
webrtc::InternalDataChannelInit dci;
RTC_CHECK(session_.get());
dci.reliable = session_->data_channel_type() == cricket::DCT_SCTP;
data_channel_ = DataChannel::Create(
session_.get(), session_->data_channel_type(), "datachannel", dci);
}
void SetLocalDescriptionWithDataChannel() {
CreateDataChannel();
SessionDescriptionInterface* offer = CreateOffer();
SetLocalDescriptionWithoutError(offer);
}
webrtc::RtcEventLogNullImpl event_log_;
std::unique_ptr<rtc::VirtualSocketServer> vss_;
std::unique_ptr<rtc::FirewallSocketServer> fss_;
rtc::AutoSocketServerThread thread_;
// |media_engine_| and |data_engine_| are actually owned by
// |channel_manager_|.
cricket::FakeMediaEngine* media_engine_;
cricket::FakeDataEngine* data_engine_;
// Actually owned by session_.
FakeSctpTransportFactory* fake_sctp_transport_factory_ = nullptr;
std::unique_ptr<cricket::ChannelManager> channel_manager_;
cricket::FakeCall fake_call_;
std::unique_ptr<cricket::TransportDescriptionFactory> tdesc_factory_;
std::unique_ptr<cricket::MediaSessionDescriptionFactory> desc_factory_;
rtc::SocketAddress stun_socket_addr_;
std::unique_ptr<cricket::TestStunServer> stun_server_;
rtc::FakeNetworkManager network_manager_;
std::unique_ptr<cricket::BasicPortAllocator> allocator_;
PeerConnectionFactoryInterface::Options options_;
PeerConnectionInterface::RTCConfiguration configuration_;
std::unique_ptr<WebRtcSessionForTest> session_;
MockIceObserver observer_;
cricket::FakeVideoMediaChannel* video_channel_;
cricket::FakeVoiceMediaChannel* voice_channel_;
rtc::scoped_refptr<FakeMetricsObserver> metrics_observer_;
// The following flags affect options created for CreateOffer/CreateAnswer.
bool send_stream_1_ = false;
bool send_stream_2_ = false;
bool local_send_audio_ = false;
bool local_send_video_ = false;
bool local_recv_audio_ = true;
bool local_recv_video_ = true;
bool remote_send_audio_ = false;
bool remote_send_video_ = false;
bool remote_recv_audio_ = true;
bool remote_recv_video_ = true;
std::vector<cricket::MediaDescriptionOptions> offered_media_sections_;
rtc::scoped_refptr<DataChannel> data_channel_;
// Last values received from data channel creation signal.
std::string last_data_channel_label_;
InternalDataChannelInit last_data_channel_config_;
rtc::CryptoOptions crypto_options_;
};
TEST_F(WebRtcSessionTest, TestSessionCandidates) {
TestSessionCandidatesWithBundleRtcpMux(false, false);
}
// Below test cases (TestSessionCandidatesWith*) verify the candidates gathered
// with rtcp-mux and/or bundle.
TEST_F(WebRtcSessionTest, TestSessionCandidatesWithRtcpMux) {
TestSessionCandidatesWithBundleRtcpMux(false, true);
}
TEST_F(WebRtcSessionTest, TestSessionCandidatesWithBundleRtcpMux) {
TestSessionCandidatesWithBundleRtcpMux(true, true);
}
TEST_F(WebRtcSessionTest, SetSdpFailedOnInvalidSdp) {
Init();
SessionDescriptionInterface* offer = NULL;
// Since |offer| is NULL, there's no way to tell if it's an offer or answer.
std::string unknown_action;
SetLocalDescriptionExpectError(unknown_action, kInvalidSdp, offer);
SetRemoteDescriptionExpectError(unknown_action, kInvalidSdp, offer);
}
// Test creating offers and receive answers and make sure the
// media engine creates the expected send and receive streams.
TEST_F(WebRtcSessionTest, TestCreateSdesOfferReceiveSdesAnswer) {
Init();
SendAudioVideoStream1();
SessionDescriptionInterface* offer = CreateOffer();
const std::string session_id_orig = offer->session_id();
const std::string session_version_orig = offer->session_version();
SetLocalDescriptionWithoutError(offer);
SendAudioVideoStream2();
SessionDescriptionInterface* answer =
CreateRemoteAnswer(session_->local_description());
SetRemoteDescriptionWithoutError(answer);
video_channel_ = media_engine_->GetVideoChannel(0);
voice_channel_ = media_engine_->GetVoiceChannel(0);
ASSERT_EQ(1u, video_channel_->recv_streams().size());
EXPECT_TRUE(kVideoTrack2 == video_channel_->recv_streams()[0].id);
ASSERT_EQ(1u, voice_channel_->recv_streams().size());
EXPECT_TRUE(kAudioTrack2 == voice_channel_->recv_streams()[0].id);
ASSERT_EQ(1u, video_channel_->send_streams().size());
EXPECT_TRUE(kVideoTrack1 == video_channel_->send_streams()[0].id);
ASSERT_EQ(1u, voice_channel_->send_streams().size());
EXPECT_TRUE(kAudioTrack1 == voice_channel_->send_streams()[0].id);
// Create new offer without send streams.
SendNothing();
offer = CreateOffer();
// Verify the session id is the same and the session version is
// increased.
EXPECT_EQ(session_id_orig, offer->session_id());
EXPECT_LT(rtc::FromString<uint64_t>(session_version_orig),
rtc::FromString<uint64_t>(offer->session_version()));
SetLocalDescriptionWithoutError(offer);
EXPECT_EQ(0u, video_channel_->send_streams().size());
EXPECT_EQ(0u, voice_channel_->send_streams().size());
SendAudioVideoStream2();
answer = CreateRemoteAnswer(session_->local_description());
SetRemoteDescriptionWithoutError(answer);
// Make sure the receive streams have not changed.
ASSERT_EQ(1u, video_channel_->recv_streams().size());
EXPECT_TRUE(kVideoTrack2 == video_channel_->recv_streams()[0].id);
ASSERT_EQ(1u, voice_channel_->recv_streams().size());
EXPECT_TRUE(kAudioTrack2 == voice_channel_->recv_streams()[0].id);
}
// Test receiving offers and creating answers and make sure the
// media engine creates the expected send and receive streams.
TEST_F(WebRtcSessionTest, TestReceiveSdesOfferCreateSdesAnswer) {
Init();
SendAudioVideoStream2();
SessionDescriptionInterface* offer = CreateOffer();
SetRemoteDescriptionWithoutError(offer);
SendAudioVideoStream1();
SessionDescriptionInterface* answer = CreateAnswer();
SetLocalDescriptionWithoutError(answer);
const std::string session_id_orig = answer->session_id();
const std::string session_version_orig = answer->session_version();
video_channel_ = media_engine_->GetVideoChannel(0);
voice_channel_ = media_engine_->GetVoiceChannel(0);
ASSERT_TRUE(video_channel_);
ASSERT_TRUE(voice_channel_);
ASSERT_EQ(1u, video_channel_->recv_streams().size());
EXPECT_TRUE(kVideoTrack2 == video_channel_->recv_streams()[0].id);
ASSERT_EQ(1u, voice_channel_->recv_streams().size());
EXPECT_TRUE(kAudioTrack2 == voice_channel_->recv_streams()[0].id);
ASSERT_EQ(1u, video_channel_->send_streams().size());
EXPECT_TRUE(kVideoTrack1 == video_channel_->send_streams()[0].id);
ASSERT_EQ(1u, voice_channel_->send_streams().size());
EXPECT_TRUE(kAudioTrack1 == voice_channel_->send_streams()[0].id);
SendAudioVideoStream1And2();
offer = CreateOffer();
SetRemoteDescriptionWithoutError(offer);
// Answer by turning off all send streams.
SendNothing();
answer = CreateAnswer();
// Verify the session id is the same and the session version is
// increased.
EXPECT_EQ(session_id_orig, answer->session_id());
EXPECT_LT(rtc::FromString<uint64_t>(session_version_orig),
rtc::FromString<uint64_t>(answer->session_version()));
SetLocalDescriptionWithoutError(answer);
ASSERT_EQ(2u, video_channel_->recv_streams().size());
EXPECT_TRUE(kVideoTrack1 == video_channel_->recv_streams()[0].id);
EXPECT_TRUE(kVideoTrack2 == video_channel_->recv_streams()[1].id);
ASSERT_EQ(2u, voice_channel_->recv_streams().size());
EXPECT_TRUE(kAudioTrack1 == voice_channel_->recv_streams()[0].id);
EXPECT_TRUE(kAudioTrack2 == voice_channel_->recv_streams()[1].id);
// Make sure we have no send streams.
EXPECT_EQ(0u, video_channel_->send_streams().size());
EXPECT_EQ(0u, voice_channel_->send_streams().size());
}
TEST_F(WebRtcSessionTest, SetLocalSdpFailedOnCreateChannel) {
Init();
media_engine_->set_fail_create_channel(true);
SessionDescriptionInterface* offer = CreateOffer();
ASSERT_TRUE(offer != NULL);
// SetRemoteDescription and SetLocalDescription will take the ownership of
// the offer.
SetRemoteDescriptionOfferExpectError(kCreateChannelFailed, offer);
offer = CreateOffer();
ASSERT_TRUE(offer != NULL);
SetLocalDescriptionOfferExpectError(kCreateChannelFailed, offer);
}
// Test that we can create and set an answer correctly when different
// SSL roles have been negotiated for different transports.
// See: https://bugs.chromium.org/p/webrtc/issues/detail?id=4525
TEST_P(WebRtcSessionTest, TestCreateAnswerWithDifferentSslRoles) {
SendAudioVideoStream1();
InitWithDtls(GetParam());
SetFactoryDtlsSrtp();
SessionDescriptionInterface* offer = CreateOffer();
SetLocalDescriptionWithoutError(offer);
cricket::MediaSessionOptions options;
GetOptionsForAnswer(&options);
// First, negotiate different SSL roles.
SessionDescriptionInterface* answer =
CreateRemoteAnswer(offer, options, cricket::SEC_DISABLED);
TransportInfo* audio_transport_info =
answer->description()->GetTransportInfoByName("audio");
audio_transport_info->description.connection_role =
cricket::CONNECTIONROLE_ACTIVE;
TransportInfo* video_transport_info =
answer->description()->GetTransportInfoByName("video");
video_transport_info->description.connection_role =
cricket::CONNECTIONROLE_PASSIVE;
SetRemoteDescriptionWithoutError(answer);
// Now create an offer in the reverse direction, and ensure the initial
// offerer responds with an answer with correct SSL roles.
offer = CreateRemoteOfferWithVersion(options, cricket::SEC_DISABLED,
kSessionVersion,
session_->remote_description());
SetRemoteDescriptionWithoutError(offer);
cricket::MediaSessionOptions answer_options;
answer_options.bundle_enabled = true;
answer = CreateAnswer(answer_options);
audio_transport_info = answer->description()->GetTransportInfoByName("audio");
EXPECT_EQ(cricket::CONNECTIONROLE_PASSIVE,
audio_transport_info->description.connection_role);
video_transport_info = answer->description()->GetTransportInfoByName("video");
EXPECT_EQ(cricket::CONNECTIONROLE_ACTIVE,
video_transport_info->description.connection_role);
SetLocalDescriptionWithoutError(answer);
// Lastly, start BUNDLE-ing on "audio", expecting that the "passive" role of
// audio is transferred over to video in the answer that completes the BUNDLE
// negotiation.
options.bundle_enabled = true;
offer = CreateRemoteOfferWithVersion(options, cricket::SEC_DISABLED,
kSessionVersion,
session_->remote_description());
SetRemoteDescriptionWithoutError(offer);
answer = CreateAnswer(answer_options);
audio_transport_info = answer->description()->GetTransportInfoByName("audio");
EXPECT_EQ(cricket::CONNECTIONROLE_PASSIVE,
audio_transport_info->description.connection_role);
video_transport_info = answer->description()->GetTransportInfoByName("video");
EXPECT_EQ(cricket::CONNECTIONROLE_PASSIVE,
video_transport_info->description.connection_role);
SetLocalDescriptionWithoutError(answer);
}
TEST_F(WebRtcSessionTest, TestSetLocalOfferTwice) {
Init();
SendNothing();
// SetLocalDescription take ownership of offer.
SessionDescriptionInterface* offer = CreateOffer();
SetLocalDescriptionWithoutError(offer);
// SetLocalDescription take ownership of offer.
SessionDescriptionInterface* offer2 = CreateOffer();
SetLocalDescriptionWithoutError(offer2);
}
TEST_F(WebRtcSessionTest, TestSetRemoteOfferTwice) {
Init();
SendNothing();
// SetLocalDescription take ownership of offer.
SessionDescriptionInterface* offer = CreateOffer();
SetRemoteDescriptionWithoutError(offer);
SessionDescriptionInterface* offer2 = CreateOffer();
SetRemoteDescriptionWithoutError(offer2);
}
TEST_F(WebRtcSessionTest, TestSetLocalAndRemoteOffer) {
Init();
SendNothing();
SessionDescriptionInterface* offer = CreateOffer();
SetLocalDescriptionWithoutError(offer);
offer = CreateOffer();
SetRemoteDescriptionOfferExpectError("Called in wrong state: STATE_SENTOFFER",
offer);
}
TEST_F(WebRtcSessionTest, TestSetRemoteAndLocalOffer) {
Init();
SendNothing();
SessionDescriptionInterface* offer = CreateOffer();
SetRemoteDescriptionWithoutError(offer);
offer = CreateOffer();
SetLocalDescriptionOfferExpectError(
"Called in wrong state: STATE_RECEIVEDOFFER", offer);
}
TEST_F(WebRtcSessionTest, TestSetLocalPrAnswer) {
Init();
SendNothing();
SessionDescriptionInterface* offer = CreateRemoteOffer();
SetRemoteDescriptionExpectState(offer, WebRtcSession::STATE_RECEIVEDOFFER);
JsepSessionDescription* pranswer =
static_cast<JsepSessionDescription*>(CreateAnswer());
pranswer->set_type(SessionDescriptionInterface::kPrAnswer);
SetLocalDescriptionExpectState(pranswer, WebRtcSession::STATE_SENTPRANSWER);
SendAudioVideoStream1();
JsepSessionDescription* pranswer2 =
static_cast<JsepSessionDescription*>(CreateAnswer());
pranswer2->set_type(SessionDescriptionInterface::kPrAnswer);
SetLocalDescriptionExpectState(pranswer2, WebRtcSession::STATE_SENTPRANSWER);
SendAudioVideoStream2();
SessionDescriptionInterface* answer = CreateAnswer();
SetLocalDescriptionExpectState(answer, WebRtcSession::STATE_INPROGRESS);
}
TEST_F(WebRtcSessionTest, TestSetRemotePrAnswer) {
Init();
SendNothing();
SessionDescriptionInterface* offer = CreateOffer();
SetLocalDescriptionExpectState(offer, WebRtcSession::STATE_SENTOFFER);
JsepSessionDescription* pranswer =
CreateRemoteAnswer(session_->local_description());
pranswer->set_type(SessionDescriptionInterface::kPrAnswer);
SetRemoteDescriptionExpectState(pranswer,
WebRtcSession::STATE_RECEIVEDPRANSWER);
SendAudioVideoStream1();
JsepSessionDescription* pranswer2 =
CreateRemoteAnswer(session_->local_description());
pranswer2->set_type(SessionDescriptionInterface::kPrAnswer);
SetRemoteDescriptionExpectState(pranswer2,
WebRtcSession::STATE_RECEIVEDPRANSWER);
SendAudioVideoStream2();
SessionDescriptionInterface* answer =
CreateRemoteAnswer(session_->local_description());
SetRemoteDescriptionExpectState(answer, WebRtcSession::STATE_INPROGRESS);
}
TEST_F(WebRtcSessionTest, TestSetLocalAnswerWithoutOffer) {
Init();
SendNothing();
std::unique_ptr<SessionDescriptionInterface> offer(CreateOffer());
SessionDescriptionInterface* answer =
CreateRemoteAnswer(offer.get());
SetLocalDescriptionAnswerExpectError("Called in wrong state: STATE_INIT",
answer);
}
TEST_F(WebRtcSessionTest, TestSetRemoteAnswerWithoutOffer) {
Init();
SendNothing();
std::unique_ptr<SessionDescriptionInterface> offer(CreateOffer());
SessionDescriptionInterface* answer =
CreateRemoteAnswer(offer.get());
SetRemoteDescriptionAnswerExpectError(
"Called in wrong state: STATE_INIT", answer);
}
// Verifies TransportProxy and media channels are created with content names
// present in the SessionDescription.
TEST_F(WebRtcSessionTest, TestChannelCreationsWithContentNames) {
Init();
SendAudioVideoStream1();
std::unique_ptr<SessionDescriptionInterface> offer(CreateOffer());
// CreateOffer creates session description with the content names "audio" and
// "video". Goal is to modify these content names and verify transport
// channels
// in the WebRtcSession, as channels are created with the content names
// present in SDP.
std::string sdp;
EXPECT_TRUE(offer->ToString(&sdp));
SessionDescriptionInterface* modified_offer =
CreateSessionDescription(JsepSessionDescription::kOffer, sdp, NULL);
SetRemoteDescriptionWithoutError(modified_offer);
cricket::MediaSessionOptions answer_options;
answer_options.bundle_enabled = false;
SessionDescriptionInterface* answer = CreateAnswer(answer_options);
SetLocalDescriptionWithoutError(answer);
rtc::PacketTransportInternal* voice_transport_channel =
session_->voice_rtp_transport_channel();
EXPECT_TRUE(voice_transport_channel != NULL);
EXPECT_EQ(voice_transport_channel->debug_name(),
"audio " + std::to_string(cricket::ICE_CANDIDATE_COMPONENT_RTP));
rtc::PacketTransportInternal* video_transport_channel =
session_->video_rtp_transport_channel();
ASSERT_TRUE(video_transport_channel != NULL);
EXPECT_EQ(video_transport_channel->debug_name(),
"video " + std::to_string(cricket::ICE_CANDIDATE_COMPONENT_RTP));
EXPECT_TRUE((video_channel_ = media_engine_->GetVideoChannel(0)) != NULL);
EXPECT_TRUE((voice_channel_ = media_engine_->GetVoiceChannel(0)) != NULL);
}
// Test that an offer contains the correct media content descriptions based on
// the send streams when no constraints have been set.
TEST_F(WebRtcSessionTest, CreateOfferWithoutConstraintsOrStreams) {
Init();
std::unique_ptr<SessionDescriptionInterface> offer(CreateOffer());
ASSERT_TRUE(offer != NULL);
const cricket::ContentInfo* content =
cricket::GetFirstAudioContent(offer->description());
ASSERT_TRUE(content != NULL);
EXPECT_EQ(
cricket::MD_RECVONLY,
static_cast<const cricket::AudioContentDescription*>(content->description)
->direction());
content = cricket::GetFirstVideoContent(offer->description());
ASSERT_TRUE(content != NULL);
EXPECT_EQ(
cricket::MD_RECVONLY,
static_cast<const cricket::VideoContentDescription*>(content->description)
->direction());
}
// Test that an offer contains the correct media content descriptions based on
// the send streams when no constraints have been set.
TEST_F(WebRtcSessionTest, CreateOfferWithoutConstraints) {
Init();
// Test Audio only offer.
SendAudioOnlyStream2();
std::unique_ptr<SessionDescriptionInterface> offer(CreateOffer());
const cricket::ContentInfo* content =
cricket::GetFirstAudioContent(offer->description());
ASSERT_TRUE(content != NULL);
EXPECT_EQ(
cricket::MD_SENDRECV,
static_cast<const cricket::AudioContentDescription*>(content->description)
->direction());
content = cricket::GetFirstVideoContent(offer->description());
ASSERT_TRUE(content != NULL);
EXPECT_EQ(
cricket::MD_RECVONLY,
static_cast<const cricket::VideoContentDescription*>(content->description)
->direction());
// Test Audio / Video offer.
SendAudioVideoStream1();
offer.reset(CreateOffer());
content = cricket::GetFirstAudioContent(offer->description());
ASSERT_TRUE(content != NULL);
EXPECT_EQ(
cricket::MD_SENDRECV,
static_cast<const cricket::AudioContentDescription*>(content->description)
->direction());
content = cricket::GetFirstVideoContent(offer->description());
ASSERT_TRUE(content != NULL);
EXPECT_EQ(
cricket::MD_SENDRECV,
static_cast<const cricket::VideoContentDescription*>(content->description)
->direction());
}
// Test that an offer contains no media content descriptions if
// kOfferToReceiveVideo and kOfferToReceiveAudio constraints are set to false.
TEST_F(WebRtcSessionTest, CreateOfferWithConstraintsWithoutStreams) {
Init();
PeerConnectionInterface::RTCOfferAnswerOptions options;
options.offer_to_receive_audio = 0;
options.offer_to_receive_video = 0;
std::unique_ptr<SessionDescriptionInterface> offer(CreateOffer(options));
ASSERT_TRUE(offer != NULL);
const cricket::ContentInfo* content =
cricket::GetFirstAudioContent(offer->description());
EXPECT_TRUE(content == NULL);
content = cricket::GetFirstVideoContent(offer->description());
EXPECT_TRUE(content == NULL);
}
// Test that an offer contains only audio media content descriptions if
// kOfferToReceiveAudio constraints are set to true.
TEST_F(WebRtcSessionTest, CreateAudioOnlyOfferWithConstraints) {
Init();
PeerConnectionInterface::RTCOfferAnswerOptions options;
options.offer_to_receive_audio =
RTCOfferAnswerOptions::kOfferToReceiveMediaTrue;
options.offer_to_receive_video = 0;
std::unique_ptr<SessionDescriptionInterface> offer(CreateOffer(options));
const cricket::ContentInfo* content =
cricket::GetFirstAudioContent(offer->description());
EXPECT_TRUE(content != NULL);
content = cricket::GetFirstVideoContent(offer->description());
EXPECT_TRUE(content == NULL);
}
// Test that an offer contains audio and video media content descriptions if
// kOfferToReceiveAudio and kOfferToReceiveVideo constraints are set to true.
TEST_F(WebRtcSessionTest, CreateOfferWithConstraints) {
Init();
// Test Audio / Video offer.
PeerConnectionInterface::RTCOfferAnswerOptions options;
options.offer_to_receive_audio =
RTCOfferAnswerOptions::kOfferToReceiveMediaTrue;
options.offer_to_receive_video =
RTCOfferAnswerOptions::kOfferToReceiveMediaTrue;
std::unique_ptr<SessionDescriptionInterface> offer(CreateOffer(options));
const cricket::ContentInfo* content =
cricket::GetFirstAudioContent(offer->description());
EXPECT_TRUE(content != NULL);
content = cricket::GetFirstVideoContent(offer->description());
EXPECT_TRUE(content != NULL);
// Sets constraints to false and verifies that audio/video contents are
// removed.
options.offer_to_receive_audio = 0;
options.offer_to_receive_video = 0;
// Remove the media sections added in previous offer.
offered_media_sections_.clear();
offer.reset(CreateOffer(options));
content = cricket::GetFirstAudioContent(offer->description());
EXPECT_TRUE(content == NULL);
content = cricket::GetFirstVideoContent(offer->description());
EXPECT_TRUE(content == NULL);
}
// Test that an answer can not be created if the last remote description is not
// an offer.
TEST_F(WebRtcSessionTest, CreateAnswerWithoutAnOffer) {
Init();
SessionDescriptionInterface* offer = CreateOffer();
SetLocalDescriptionWithoutError(offer);
SessionDescriptionInterface* answer = CreateRemoteAnswer(offer);
SetRemoteDescriptionWithoutError(answer);
EXPECT_TRUE(CreateAnswer() == NULL);
}
// Test that an answer contains the correct media content descriptions when no
// constraints have been set.
TEST_F(WebRtcSessionTest, CreateAnswerWithoutConstraintsOrStreams) {
Init();
// Create a remote offer with audio and video content.
std::unique_ptr<JsepSessionDescription> offer(CreateRemoteOffer());
SetRemoteDescriptionWithoutError(offer.release());
std::unique_ptr<SessionDescriptionInterface> answer(CreateAnswer());
const cricket::ContentInfo* content =
cricket::GetFirstAudioContent(answer->description());
ASSERT_TRUE(content != NULL);
EXPECT_FALSE(content->rejected);
content = cricket::GetFirstVideoContent(answer->description());
ASSERT_TRUE(content != NULL);
EXPECT_FALSE(content->rejected);
}
// Test that an answer contains the correct media content descriptions when no
// constraints have been set and the offer only contain audio.
TEST_F(WebRtcSessionTest, CreateAudioAnswerWithoutConstraintsOrStreams) {
Init();
// Create a remote offer with audio only.
cricket::MediaSessionOptions options;
GetOptionsForAudioOnlyRemoteOffer(&options);
std::unique_ptr<JsepSessionDescription> offer(CreateRemoteOffer(options));
ASSERT_TRUE(cricket::GetFirstVideoContent(offer->description()) == NULL);
ASSERT_TRUE(cricket::GetFirstAudioContent(offer->description()) != NULL);
SetRemoteDescriptionWithoutError(offer.release());
std::unique_ptr<SessionDescriptionInterface> answer(CreateAnswer());
const cricket::ContentInfo* content =
cricket::GetFirstAudioContent(answer->description());
ASSERT_TRUE(content != NULL);
EXPECT_FALSE(content->rejected);
EXPECT_TRUE(cricket::GetFirstVideoContent(answer->description()) == NULL);
}
// Test that an answer contains the correct media content descriptions when no
// constraints have been set.
TEST_F(WebRtcSessionTest, CreateAnswerWithoutConstraints) {
Init();
// Create a remote offer with audio and video content.
std::unique_ptr<JsepSessionDescription> offer(CreateRemoteOffer());
SetRemoteDescriptionWithoutError(offer.release());
// Test with a stream with tracks.
SendAudioVideoStream1();
std::unique_ptr<SessionDescriptionInterface> answer(CreateAnswer());
const cricket::ContentInfo* content =
cricket::GetFirstAudioContent(answer->description());
ASSERT_TRUE(content != NULL);
EXPECT_FALSE(content->rejected);
content = cricket::GetFirstVideoContent(answer->description());
ASSERT_TRUE(content != NULL);
EXPECT_FALSE(content->rejected);
}
// Test that an answer contains the correct media content descriptions when
// constraints have been set but no stream is sent.
TEST_F(WebRtcSessionTest, CreateAnswerWithConstraintsWithoutStreams) {
Init();
// Create a remote offer with audio and video content.
std::unique_ptr<JsepSessionDescription> offer(CreateRemoteOffer());
SetRemoteDescriptionWithoutError(offer.release());
cricket::MediaSessionOptions session_options;
remote_send_audio_ = false;
remote_send_video_ = false;
local_recv_audio_ = false;
local_recv_video_ = false;
std::unique_ptr<SessionDescriptionInterface> answer(
CreateAnswer(session_options));
const cricket::ContentInfo* content =
cricket::GetFirstAudioContent(answer->description());
ASSERT_TRUE(content != NULL);
EXPECT_TRUE(content->rejected);
content = cricket::GetFirstVideoContent(answer->description());
ASSERT_TRUE(content != NULL);
EXPECT_TRUE(content->rejected);
}
// Test that an answer contains the correct media content descriptions when
// constraints have been set and streams are sent.
TEST_F(WebRtcSessionTest, CreateAnswerWithConstraints) {
Init();
// Create a remote offer with audio and video content.
std::unique_ptr<JsepSessionDescription> offer(CreateRemoteOffer());
SetRemoteDescriptionWithoutError(offer.release());
cricket::MediaSessionOptions options;
// Test with a stream with tracks.
SendAudioVideoStream1();
std::unique_ptr<SessionDescriptionInterface> answer(CreateAnswer(options));
// TODO(perkj): Should the direction be set to SEND_ONLY?
const cricket::ContentInfo* content =
cricket::GetFirstAudioContent(answer->description());
ASSERT_TRUE(content != NULL);
EXPECT_FALSE(content->rejected);
// TODO(perkj): Should the direction be set to SEND_ONLY?
content = cricket::GetFirstVideoContent(answer->description());
ASSERT_TRUE(content != NULL);
EXPECT_FALSE(content->rejected);
}
TEST_F(WebRtcSessionTest, CreateOfferWithoutCNCodecs) {
AddCNCodecs();
Init();
PeerConnectionInterface::RTCOfferAnswerOptions options;
options.offer_to_receive_audio =
RTCOfferAnswerOptions::kOfferToReceiveMediaTrue;
options.voice_activity_detection = false;
std::unique_ptr<SessionDescriptionInterface> offer(CreateOffer(options));
const cricket::ContentInfo* content =
cricket::GetFirstAudioContent(offer->description());
EXPECT_TRUE(content != NULL);
EXPECT_TRUE(VerifyNoCNCodecs(content));
}
TEST_F(WebRtcSessionTest, CreateAnswerWithoutCNCodecs) {
AddCNCodecs();
Init();
// Create a remote offer with audio and video content.
std::unique_ptr<JsepSessionDescription> offer(CreateRemoteOffer());
SetRemoteDescriptionWithoutError(offer.release());
cricket::MediaSessionOptions options;
options.vad_enabled = false;
std::unique_ptr<SessionDescriptionInterface> answer(CreateAnswer(options));
const cricket::ContentInfo* content =
cricket::GetFirstAudioContent(answer->description());
ASSERT_TRUE(content != NULL);
EXPECT_TRUE(VerifyNoCNCodecs(content));
}
// This test verifies the call setup when remote answer with audio only and
// later updates with video.
TEST_F(WebRtcSessionTest, TestAVOfferWithAudioOnlyAnswer) {
Init();
EXPECT_TRUE(media_engine_->GetVideoChannel(0) == NULL);
EXPECT_TRUE(media_engine_->GetVoiceChannel(0) == NULL);
SendAudioVideoStream1();
SessionDescriptionInterface* offer = CreateOffer();
cricket::MediaSessionOptions options;
AddMediaSection(cricket::MEDIA_TYPE_AUDIO, cricket::CN_AUDIO,
cricket::MD_RECVONLY, kActive, &options);
AddMediaSection(cricket::MEDIA_TYPE_VIDEO, cricket::CN_VIDEO,
cricket::MD_INACTIVE, kStopped, &options);
local_recv_video_ = false;
SessionDescriptionInterface* answer = CreateRemoteAnswer(offer, options);
// SetLocalDescription and SetRemoteDescriptions takes ownership of offer
// and answer;
SetLocalDescriptionWithoutError(offer);
SetRemoteDescriptionWithoutError(answer);
video_channel_ = media_engine_->GetVideoChannel(0);
voice_channel_ = media_engine_->GetVoiceChannel(0);
ASSERT_TRUE(video_channel_ == nullptr);
ASSERT_EQ(0u, voice_channel_->recv_streams().size());
ASSERT_EQ(1u, voice_channel_->send_streams().size());
EXPECT_EQ(kAudioTrack1, voice_channel_->send_streams()[0].id);
// Let the remote end update the session descriptions, with Audio and Video.
SendAudioVideoStream2();
local_recv_video_ = true;
CreateAndSetRemoteOfferAndLocalAnswer();
video_channel_ = media_engine_->GetVideoChannel(0);
voice_channel_ = media_engine_->GetVoiceChannel(0);
ASSERT_TRUE(video_channel_ != nullptr);
ASSERT_TRUE(voice_channel_ != nullptr);
ASSERT_EQ(1u, video_channel_->recv_streams().size());
ASSERT_EQ(1u, video_channel_->send_streams().size());
EXPECT_EQ(kVideoTrack2, video_channel_->recv_streams()[0].id);
EXPECT_EQ(kVideoTrack2, video_channel_->send_streams()[0].id);
ASSERT_EQ(1u, voice_channel_->recv_streams().size());
ASSERT_EQ(1u, voice_channel_->send_streams().size());
EXPECT_EQ(kAudioTrack2, voice_channel_->recv_streams()[0].id);
EXPECT_EQ(kAudioTrack2, voice_channel_->send_streams()[0].id);
// Change session back to audio only.
// The remote side doesn't send and recv video.
SendAudioOnlyStream2();
remote_recv_video_ = false;
CreateAndSetRemoteOfferAndLocalAnswer();
video_channel_ = media_engine_->GetVideoChannel(0);
voice_channel_ = media_engine_->GetVoiceChannel(0);
// The audio is expected to be rejected.
EXPECT_TRUE(video_channel_ == nullptr);
ASSERT_EQ(1u, voice_channel_->recv_streams().size());
EXPECT_EQ(kAudioTrack2, voice_channel_->recv_streams()[0].id);
ASSERT_EQ(1u, voice_channel_->send_streams().size());
EXPECT_EQ(kAudioTrack2, voice_channel_->send_streams()[0].id);
}
// This test verifies the call setup when remote answer with video only and
// later updates with audio.
TEST_F(WebRtcSessionTest, TestAVOfferWithVideoOnlyAnswer) {
Init();
EXPECT_TRUE(media_engine_->GetVideoChannel(0) == NULL);
EXPECT_TRUE(media_engine_->GetVoiceChannel(0) == NULL);
SendAudioVideoStream1();
SessionDescriptionInterface* offer = CreateOffer();
cricket::MediaSessionOptions options;
AddMediaSection(cricket::MEDIA_TYPE_AUDIO, cricket::CN_AUDIO,
cricket::MD_INACTIVE, kStopped, &options);
AddMediaSection(cricket::MEDIA_TYPE_VIDEO, cricket::CN_VIDEO,
cricket::MD_RECVONLY, kActive, &options);
local_recv_audio_ = false;
SessionDescriptionInterface* answer =
CreateRemoteAnswer(offer, options, cricket::SEC_ENABLED);
// SetLocalDescription and SetRemoteDescriptions takes ownership of offer
// and answer.
SetLocalDescriptionWithoutError(offer);
SetRemoteDescriptionWithoutError(answer);
video_channel_ = media_engine_->GetVideoChannel(0);
voice_channel_ = media_engine_->GetVoiceChannel(0);
ASSERT_TRUE(voice_channel_ == NULL);
ASSERT_TRUE(video_channel_ != NULL);
EXPECT_EQ(0u, video_channel_->recv_streams().size());
ASSERT_EQ(1u, video_channel_->send_streams().size());
EXPECT_EQ(kVideoTrack1, video_channel_->send_streams()[0].id);
// Update the session descriptions, with Audio and Video.
SendAudioVideoStream2();
local_recv_audio_ = true;
SessionDescriptionInterface* offer2 = CreateRemoteOffer();
SetRemoteDescriptionWithoutError(offer2);
cricket::MediaSessionOptions answer_options;
// Disable the bundling here. If the media is bundled on audio
// transport, then we can't reject the audio because switching the bundled
// transport is not currently supported.
// (https://bugs.chromium.org/p/webrtc/issues/detail?id=6704)
answer_options.bundle_enabled = false;
SessionDescriptionInterface* answer2 = CreateAnswer(answer_options);
SetLocalDescriptionWithoutError(answer2);
voice_channel_ = media_engine_->GetVoiceChannel(0);
ASSERT_TRUE(voice_channel_ != NULL);
ASSERT_EQ(1u, voice_channel_->recv_streams().size());
ASSERT_EQ(1u, voice_channel_->send_streams().size());
EXPECT_EQ(kAudioTrack2, voice_channel_->recv_streams()[0].id);
EXPECT_EQ(kAudioTrack2, voice_channel_->send_streams()[0].id);
// Change session back to video only.
// The remote side doesn't send and recv audio.
SendVideoOnlyStream2();
remote_recv_audio_ = false;
SessionDescriptionInterface* offer3 = CreateRemoteOffer();
SetRemoteDescriptionWithoutError(offer3);
SessionDescriptionInterface* answer3 = CreateAnswer(answer_options);
SetLocalDescriptionWithoutError(answer3);
video_channel_ = media_engine_->GetVideoChannel(0);
voice_channel_ = media_engine_->GetVoiceChannel(0);
// The video is expected to be rejected.
EXPECT_TRUE(voice_channel_ == nullptr);
ASSERT_EQ(1u, video_channel_->recv_streams().size());
EXPECT_EQ(kVideoTrack2, video_channel_->recv_streams()[0].id);
ASSERT_EQ(1u, video_channel_->send_streams().size());
EXPECT_EQ(kVideoTrack2, video_channel_->send_streams()[0].id);
}
// Test that candidates sent to the "video" transport do not get pushed down to
// the "audio" transport channel when bundling.
TEST_F(WebRtcSessionTest, TestIgnoreCandidatesForUnusedTransportWhenBundling) {
AddInterface(rtc::SocketAddress(kClientAddrHost1, kClientAddrPort));
InitWithBundlePolicy(PeerConnectionInterface::kBundlePolicyBalanced);
SendAudioVideoStream1();
cricket::MediaSessionOptions offer_options;
GetOptionsForRemoteOffer(&offer_options);
offer_options.bundle_enabled = true;
SessionDescriptionInterface* offer = CreateRemoteOffer(offer_options);
SetRemoteDescriptionWithoutError(offer);
cricket::MediaSessionOptions answer_options;
answer_options.bundle_enabled = true;
SessionDescriptionInterface* answer = CreateAnswer(answer_options);
SetLocalDescriptionWithoutError(answer);
EXPECT_EQ(session_->voice_rtp_transport_channel(),
session_->video_rtp_transport_channel());
cricket::BaseChannel* voice_channel = session_->voice_channel();
ASSERT_TRUE(voice_channel != NULL);
// Checks if one of the transport channels contains a connection using a given
// port.
auto connection_with_remote_port = [this](int port) {
std::unique_ptr<webrtc::SessionStats> stats = session_->GetStats_s();
for (auto& kv : stats->transport_stats) {
for (auto& chan_stat : kv.second.channel_stats) {
for (auto& conn_info : chan_stat.connection_infos) {
if (conn_info.remote_candidate.address().port() == port) {
return true;
}
}
}
}
return false;
};
EXPECT_FALSE(connection_with_remote_port(5000));
EXPECT_FALSE(connection_with_remote_port(5001));
EXPECT_FALSE(connection_with_remote_port(6000));
// The way the *_WAIT checks work is they only wait if the condition fails,
// which does not help in the case where state is not changing. This is
// problematic in this test since we want to verify that adding a video
// candidate does _not_ change state. So we interleave candidates and assume
// that messages are executed in the order they were posted.
// First audio candidate.
cricket::Candidate candidate0;
candidate0.set_address(rtc::SocketAddress("1.1.1.1", 5000));
candidate0.set_component(1);
candidate0.set_protocol("udp");
candidate0.set_type("local");
JsepIceCandidate ice_candidate0(kMediaContentName0, kMediaContentIndex0,
candidate0);
EXPECT_TRUE(session_->ProcessIceMessage(&ice_candidate0));
// Video candidate.
cricket::Candidate candidate1;
candidate1.set_address(rtc::SocketAddress("1.1.1.1", 6000));
candidate1.set_component(1);
candidate1.set_protocol("udp");
candidate1.set_type("local");
JsepIceCandidate ice_candidate1(kMediaContentName1, kMediaContentIndex1,
candidate1);
EXPECT_TRUE(session_->ProcessIceMessage(&ice_candidate1));
// Second audio candidate.
cricket::Candidate candidate2;
candidate2.set_address(rtc::SocketAddress("1.1.1.1", 5001));
candidate2.set_component(1);
candidate2.set_protocol("udp");
candidate2.set_type("local");
JsepIceCandidate ice_candidate2(kMediaContentName0, kMediaContentIndex0,
candidate2);
EXPECT_TRUE(session_->ProcessIceMessage(&ice_candidate2));
EXPECT_TRUE_WAIT(connection_with_remote_port(5000), 1000);
EXPECT_TRUE_WAIT(connection_with_remote_port(5001), 1000);
// No need here for a _WAIT check since we are checking that state hasn't
// changed: if this is false we would be doing waits for nothing and if this
// is true then there will be no messages processed anyways.
EXPECT_FALSE(connection_with_remote_port(6000));
}
// kBundlePolicyBalanced BUNDLE policy and answer contains BUNDLE.
TEST_F(WebRtcSessionTest, TestBalancedBundleInAnswer) {
InitWithBundlePolicy(PeerConnectionInterface::kBundlePolicyBalanced);
SendAudioVideoStream1();
PeerConnectionInterface::RTCOfferAnswerOptions options;
options.use_rtp_mux = true;
SessionDescriptionInterface* offer = CreateOffer(options);
SetLocalDescriptionWithoutError(offer);
EXPECT_NE(session_->voice_rtp_transport_channel(),
session_->video_rtp_transport_channel());
SendAudioVideoStream2();
SessionDescriptionInterface* answer =
CreateRemoteAnswer(session_->local_description());
SetRemoteDescriptionWithoutError(answer);
EXPECT_EQ(session_->voice_rtp_transport_channel(),
session_->video_rtp_transport_channel());
}
// kBundlePolicyBalanced BUNDLE policy but no BUNDLE in the answer.
TEST_F(WebRtcSessionTest, TestBalancedNoBundleInAnswer) {
InitWithBundlePolicy(PeerConnectionInterface::kBundlePolicyBalanced);
SendAudioVideoStream1();
PeerConnectionInterface::RTCOfferAnswerOptions options;
options.use_rtp_mux = true;
SessionDescriptionInterface* offer = CreateOffer(options);
SetLocalDescriptionWithoutError(offer);
EXPECT_NE(session_->voice_rtp_transport_channel(),
session_->video_rtp_transport_channel());
SendAudioVideoStream2();
// Remove BUNDLE from the answer.
std::unique_ptr<SessionDescriptionInterface> answer(
CreateRemoteAnswer(session_->local_description()));
cricket::SessionDescription* answer_copy = answer->description()->Copy();
answer_copy->RemoveGroupByName(cricket::GROUP_TYPE_BUNDLE);
JsepSessionDescription* modified_answer =
new JsepSessionDescription(JsepSessionDescription::kAnswer);
modified_answer->Initialize(answer_copy, "1", "1");
SetRemoteDescriptionWithoutError(modified_answer); //
EXPECT_NE(session_->voice_rtp_transport_channel(),
session_->video_rtp_transport_channel());
}
// kBundlePolicyMaxBundle policy with BUNDLE in the answer.
TEST_F(WebRtcSessionTest, TestMaxBundleBundleInAnswer) {
InitWithBundlePolicy(PeerConnectionInterface::kBundlePolicyMaxBundle);
SendAudioVideoStream1();
PeerConnectionInterface::RTCOfferAnswerOptions options;
options.use_rtp_mux = true;
SessionDescriptionInterface* offer = CreateOffer(options);
SetLocalDescriptionWithoutError(offer);
EXPECT_EQ(session_->voice_rtp_transport_channel(),
session_->video_rtp_transport_channel());
SendAudioVideoStream2();
SessionDescriptionInterface* answer =
CreateRemoteAnswer(session_->local_description());
SetRemoteDescriptionWithoutError(answer);
EXPECT_EQ(session_->voice_rtp_transport_channel(),
session_->video_rtp_transport_channel());
}
// kBundlePolicyMaxBundle policy with BUNDLE in the answer, but no
// audio content in the answer.
TEST_F(WebRtcSessionTest, TestMaxBundleRejectAudio) {
InitWithBundlePolicy(PeerConnectionInterface::kBundlePolicyMaxBundle);
SendAudioVideoStream1();
PeerConnectionInterface::RTCOfferAnswerOptions options;
options.use_rtp_mux = true;
SessionDescriptionInterface* offer = CreateOffer(options);
SetLocalDescriptionWithoutError(offer);
EXPECT_EQ(session_->voice_rtp_transport_channel(),
session_->video_rtp_transport_channel());
SendVideoOnlyStream2();
local_send_audio_ = false;
remote_recv_audio_ = false;
cricket::MediaSessionOptions recv_options;
GetOptionsForRemoteAnswer(&recv_options);
SessionDescriptionInterface* answer =
CreateRemoteAnswer(session_->local_description(), recv_options);
SetRemoteDescriptionWithoutError(answer);
EXPECT_TRUE(nullptr == session_->voice_channel());
EXPECT_TRUE(nullptr != session_->video_rtp_transport_channel());
session_->Close();
EXPECT_TRUE(nullptr == session_->voice_rtp_transport_channel());
EXPECT_TRUE(nullptr == session_->voice_rtcp_transport_channel());
EXPECT_TRUE(nullptr == session_->video_rtp_transport_channel());
EXPECT_TRUE(nullptr == session_->video_rtcp_transport_channel());
}
// kBundlePolicyMaxBundle policy but no BUNDLE in the answer.
TEST_F(WebRtcSessionTest, TestMaxBundleNoBundleInAnswer) {
InitWithBundlePolicy(PeerConnectionInterface::kBundlePolicyMaxBundle);
SendAudioVideoStream1();
PeerConnectionInterface::RTCOfferAnswerOptions options;
options.use_rtp_mux = true;
SessionDescriptionInterface* offer = CreateOffer(options);
SetLocalDescriptionWithoutError(offer);
EXPECT_EQ(session_->voice_rtp_transport_channel(),
session_->video_rtp_transport_channel());
SendAudioVideoStream2();
// Remove BUNDLE from the answer.
std::unique_ptr<SessionDescriptionInterface> answer(
CreateRemoteAnswer(session_->local_description()));
cricket::SessionDescription* answer_copy = answer->description()->Copy();
answer_copy->RemoveGroupByName(cricket::GROUP_TYPE_BUNDLE);
JsepSessionDescription* modified_answer =
new JsepSessionDescription(JsepSessionDescription::kAnswer);
modified_answer->Initialize(answer_copy, "1", "1");
SetRemoteDescriptionWithoutError(modified_answer);
EXPECT_EQ(session_->voice_rtp_transport_channel(),
session_->video_rtp_transport_channel());
}
// kBundlePolicyMaxBundle policy with BUNDLE in the remote offer.
TEST_F(WebRtcSessionTest, TestMaxBundleBundleInRemoteOffer) {
InitWithBundlePolicy(PeerConnectionInterface::kBundlePolicyMaxBundle);
SendAudioVideoStream1();
SessionDescriptionInterface* offer = CreateRemoteOffer();
SetRemoteDescriptionWithoutError(offer);
EXPECT_EQ(session_->voice_rtp_transport_channel(),
session_->video_rtp_transport_channel());
SendAudioVideoStream2();
SessionDescriptionInterface* answer = CreateAnswer();
SetLocalDescriptionWithoutError(answer);
EXPECT_EQ(session_->voice_rtp_transport_channel(),
session_->video_rtp_transport_channel());
}
// kBundlePolicyMaxBundle policy but no BUNDLE in the remote offer.
TEST_F(WebRtcSessionTest, TestMaxBundleNoBundleInRemoteOffer) {
InitWithBundlePolicy(PeerConnectionInterface::kBundlePolicyMaxBundle);
SendAudioVideoStream1();
// Remove BUNDLE from the offer.
std::unique_ptr<SessionDescriptionInterface> offer(CreateRemoteOffer());
cricket::SessionDescription* offer_copy = offer->description()->Copy();
offer_copy->RemoveGroupByName(cricket::GROUP_TYPE_BUNDLE);
JsepSessionDescription* modified_offer =
new JsepSessionDescription(JsepSessionDescription::kOffer);
modified_offer->Initialize(offer_copy, "1", "1");
// Expect an error when applying the remote description
SetRemoteDescriptionExpectError(JsepSessionDescription::kOffer,
kCreateChannelFailed, modified_offer);
}
// kBundlePolicyMaxCompat bundle policy and answer contains BUNDLE.
TEST_F(WebRtcSessionTest, TestMaxCompatBundleInAnswer) {
InitWithBundlePolicy(PeerConnectionInterface::kBundlePolicyMaxCompat);
SendAudioVideoStream1();
PeerConnectionInterface::RTCOfferAnswerOptions rtc_options;
rtc_options.use_rtp_mux = true;
SessionDescriptionInterface* offer = CreateOffer(rtc_options);
SetLocalDescriptionWithoutError(offer);
EXPECT_NE(session_->voice_rtp_transport_channel(),
session_->video_rtp_transport_channel());
SendAudioVideoStream2();
SessionDescriptionInterface* answer =
CreateRemoteAnswer(session_->local_description());
SetRemoteDescriptionWithoutError(answer);
// This should lead to an audio-only call but isn't implemented
// correctly yet.
EXPECT_EQ(session_->voice_rtp_transport_channel(),
session_->video_rtp_transport_channel());
}
// kBundlePolicyMaxCompat BUNDLE policy but no BUNDLE in the answer.
TEST_F(WebRtcSessionTest, TestMaxCompatNoBundleInAnswer) {
InitWithBundlePolicy(PeerConnectionInterface::kBundlePolicyMaxCompat);
SendAudioVideoStream1();
PeerConnectionInterface::RTCOfferAnswerOptions options;
options.use_rtp_mux = true;
SessionDescriptionInterface* offer = CreateOffer(options);
SetLocalDescriptionWithoutError(offer);
EXPECT_NE(session_->voice_rtp_transport_channel(),
session_->video_rtp_transport_channel());
SendAudioVideoStream2();
// Remove BUNDLE from the answer.
std::unique_ptr<SessionDescriptionInterface> answer(
CreateRemoteAnswer(session_->local_description()));
cricket::SessionDescription* answer_copy = answer->description()->Copy();
answer_copy->RemoveGroupByName(cricket::GROUP_TYPE_BUNDLE);
JsepSessionDescription* modified_answer =
new JsepSessionDescription(JsepSessionDescription::kAnswer);
modified_answer->Initialize(answer_copy, "1", "1");
SetRemoteDescriptionWithoutError(modified_answer); //
EXPECT_NE(session_->voice_rtp_transport_channel(),
session_->video_rtp_transport_channel());
}
// kBundlePolicyMaxbundle and then we call SetRemoteDescription first.
TEST_F(WebRtcSessionTest, TestMaxBundleWithSetRemoteDescriptionFirst) {
InitWithBundlePolicy(PeerConnectionInterface::kBundlePolicyMaxBundle);
SendAudioVideoStream1();
PeerConnectionInterface::RTCOfferAnswerOptions options;
options.use_rtp_mux = true;
SessionDescriptionInterface* offer = CreateOffer(options);
SetRemoteDescriptionWithoutError(offer);
EXPECT_EQ(session_->voice_rtp_transport_channel(),
session_->video_rtp_transport_channel());
}
// Adding a new channel to a BUNDLE which is already connected should directly
// assign the bundle transport to the channel, without first setting a
// disconnected non-bundle transport and then replacing it. The application
// should not receive any changes in the ICE state.
TEST_F(WebRtcSessionTest, TestAddChannelToConnectedBundle) {
AddInterface(rtc::SocketAddress(kClientAddrHost1, kClientAddrPort));
// Both BUNDLE and RTCP-mux need to be enabled for the ICE state to remain
// connected. Disabling either of these two means that we need to wait for the
// answer to find out if more transports are needed.
configuration_.bundle_policy =
PeerConnectionInterface::kBundlePolicyMaxBundle;
options_.disable_encryption = true;
InitWithRtcpMuxPolicy(PeerConnectionInterface::kRtcpMuxPolicyRequire);
// Negotiate an audio channel with MAX_BUNDLE enabled.
SendAudioOnlyStream2();
SessionDescriptionInterface* offer = CreateOffer();
SetLocalDescriptionWithoutError(offer);
EXPECT_EQ_WAIT(PeerConnectionInterface::kIceGatheringComplete,
observer_.ice_gathering_state_, kIceCandidatesTimeout);
std::string sdp;
offer->ToString(&sdp);
SessionDescriptionInterface* answer = webrtc::CreateSessionDescription(
JsepSessionDescription::kAnswer, sdp, nullptr);
ASSERT_TRUE(answer != NULL);
SetRemoteDescriptionWithoutError(answer);
// Wait for the ICE state to stabilize.
EXPECT_EQ_WAIT(PeerConnectionInterface::kIceConnectionCompleted,
observer_.ice_connection_state_, kIceCandidatesTimeout);
observer_.ice_connection_state_history_.clear();
// Now add a video channel which should be using the same bundle transport.
SendAudioVideoStream2();
offer = CreateOffer();
offer->ToString(&sdp);
SetLocalDescriptionWithoutError(offer);
answer = webrtc::CreateSessionDescription(JsepSessionDescription::kAnswer,
sdp, nullptr);
ASSERT_TRUE(answer != NULL);
SetRemoteDescriptionWithoutError(answer);
// Wait for ICE state to stabilize
rtc::Thread::Current()->ProcessMessages(0);
EXPECT_EQ_WAIT(PeerConnectionInterface::kIceConnectionCompleted,
observer_.ice_connection_state_, kIceCandidatesTimeout);
// No ICE state changes are expected to happen.
EXPECT_EQ(0, observer_.ice_connection_state_history_.size());
}
TEST_F(WebRtcSessionTest, TestRequireRtcpMux) {
InitWithRtcpMuxPolicy(PeerConnectionInterface::kRtcpMuxPolicyRequire);
SendAudioVideoStream1();
PeerConnectionInterface::RTCOfferAnswerOptions options;
SessionDescriptionInterface* offer = CreateOffer(options);
SetLocalDescriptionWithoutError(offer);
EXPECT_TRUE(session_->voice_rtcp_transport_channel() == NULL);
EXPECT_TRUE(session_->video_rtcp_transport_channel() == NULL);
SendAudioVideoStream2();
SessionDescriptionInterface* answer =
CreateRemoteAnswer(session_->local_description());
SetRemoteDescriptionWithoutError(answer);
EXPECT_TRUE(session_->voice_rtcp_transport_channel() == NULL);
EXPECT_TRUE(session_->video_rtcp_transport_channel() == NULL);
}
TEST_F(WebRtcSessionTest, TestNegotiateRtcpMux) {
InitWithRtcpMuxPolicy(PeerConnectionInterface::kRtcpMuxPolicyNegotiate);
SendAudioVideoStream1();
PeerConnectionInterface::RTCOfferAnswerOptions options;
SessionDescriptionInterface* offer = CreateOffer(options);
SetLocalDescriptionWithoutError(offer);
EXPECT_TRUE(session_->voice_rtcp_transport_channel() != NULL);
EXPECT_TRUE(session_->video_rtcp_transport_channel() != NULL);
SendAudioVideoStream2();
SessionDescriptionInterface* answer =
CreateRemoteAnswer(session_->local_description());
SetRemoteDescriptionWithoutError(answer);
EXPECT_TRUE(session_->voice_rtcp_transport_channel() == NULL);
EXPECT_TRUE(session_->video_rtcp_transport_channel() == NULL);
}
// This test verifies that SetLocalDescription and SetRemoteDescription fails
// if BUNDLE is enabled but rtcp-mux is disabled in m-lines.
TEST_F(WebRtcSessionTest, TestDisabledRtcpMuxWithBundleEnabled) {
Init();
SendAudioVideoStream1();
PeerConnectionInterface::RTCOfferAnswerOptions options;
options.use_rtp_mux = true;
SessionDescriptionInterface* offer = CreateOffer(options);
std::string offer_str;
offer->ToString(&offer_str);
// Disable rtcp-mux
const std::string rtcp_mux = "rtcp-mux";
const std::string xrtcp_mux = "xrtcp-mux";
rtc::replace_substrs(rtcp_mux.c_str(), rtcp_mux.length(),
xrtcp_mux.c_str(), xrtcp_mux.length(),
&offer_str);
SessionDescriptionInterface* local_offer = CreateSessionDescription(
SessionDescriptionInterface::kOffer, offer_str, nullptr);
ASSERT_TRUE(local_offer);
SetLocalDescriptionOfferExpectError(kBundleWithoutRtcpMux, local_offer);
SessionDescriptionInterface* remote_offer = CreateSessionDescription(
SessionDescriptionInterface::kOffer, offer_str, nullptr);
ASSERT_TRUE(remote_offer);
SetRemoteDescriptionOfferExpectError(kBundleWithoutRtcpMux, remote_offer);
// Trying unmodified SDP.
SetLocalDescriptionWithoutError(offer);
}
// This test verifies the |initial_offerer| flag when session initiates the
// call.
TEST_F(WebRtcSessionTest, TestInitiatorFlagAsOriginator) {
Init();
EXPECT_FALSE(session_->initial_offerer());
SessionDescriptionInterface* offer = CreateOffer();
SessionDescriptionInterface* answer = CreateRemoteAnswer(offer);
SetLocalDescriptionWithoutError(offer);
EXPECT_TRUE(session_->initial_offerer());
SetRemoteDescriptionWithoutError(answer);
EXPECT_TRUE(session_->initial_offerer());
}
// This test verifies the |initial_offerer| flag when session receives the call.
TEST_F(WebRtcSessionTest, TestInitiatorFlagAsReceiver) {
Init();
EXPECT_FALSE(session_->initial_offerer());
SessionDescriptionInterface* offer = CreateRemoteOffer();
SetRemoteDescriptionWithoutError(offer);
SessionDescriptionInterface* answer = CreateAnswer();
EXPECT_FALSE(session_->initial_offerer());
SetLocalDescriptionWithoutError(answer);
EXPECT_FALSE(session_->initial_offerer());
}
// Verifing local offer and remote answer have matching m-lines as per RFC 3264.
TEST_F(WebRtcSessionTest, TestIncorrectMLinesInRemoteAnswer) {
Init();
SendAudioVideoStream1();
SessionDescriptionInterface* offer = CreateOffer();
SetLocalDescriptionWithoutError(offer);
std::unique_ptr<SessionDescriptionInterface> answer(
CreateRemoteAnswer(session_->local_description()));
cricket::SessionDescription* answer_copy = answer->description()->Copy();
answer_copy->RemoveContentByName("video");
JsepSessionDescription* modified_answer =
new JsepSessionDescription(JsepSessionDescription::kAnswer);
EXPECT_TRUE(modified_answer->Initialize(answer_copy,
answer->session_id(),
answer->session_version()));
SetRemoteDescriptionAnswerExpectError(kMlineMismatchInAnswer,
modified_answer);
// Different content names.
std::string sdp;
EXPECT_TRUE(answer->ToString(&sdp));
const std::string kAudioMid = "a=mid:audio";
const std::string kAudioMidReplaceStr = "a=mid:audio_content_name";
rtc::replace_substrs(kAudioMid.c_str(), kAudioMid.length(),
kAudioMidReplaceStr.c_str(),
kAudioMidReplaceStr.length(),
&sdp);
SessionDescriptionInterface* modified_answer1 =
CreateSessionDescription(JsepSessionDescription::kAnswer, sdp, NULL);
SetRemoteDescriptionAnswerExpectError(kMlineMismatchInAnswer,
modified_answer1);
// Different media types.
EXPECT_TRUE(answer->ToString(&sdp));
const std::string kAudioMline = "m=audio";
const std::string kAudioMlineReplaceStr = "m=video";
rtc::replace_substrs(kAudioMline.c_str(), kAudioMline.length(),
kAudioMlineReplaceStr.c_str(),
kAudioMlineReplaceStr.length(),
&sdp);
SessionDescriptionInterface* modified_answer2 =
CreateSessionDescription(JsepSessionDescription::kAnswer, sdp, NULL);
SetRemoteDescriptionAnswerExpectError(kMlineMismatchInAnswer,
modified_answer2);
SetRemoteDescriptionWithoutError(answer.release());
}
// Verifying remote offer and local answer have matching m-lines as per
// RFC 3264.
TEST_F(WebRtcSessionTest, TestIncorrectMLinesInLocalAnswer) {
Init();
SendAudioVideoStream1();
SessionDescriptionInterface* offer = CreateRemoteOffer();
SetRemoteDescriptionWithoutError(offer);
SessionDescriptionInterface* answer = CreateAnswer();
cricket::SessionDescription* answer_copy = answer->description()->Copy();
answer_copy->RemoveContentByName("video");
JsepSessionDescription* modified_answer =
new JsepSessionDescription(JsepSessionDescription::kAnswer);
EXPECT_TRUE(modified_answer->Initialize(answer_copy,
answer->session_id(),
answer->session_version()));
SetLocalDescriptionAnswerExpectError(kMlineMismatchInAnswer, modified_answer);
SetLocalDescriptionWithoutError(answer);
}
TEST_F(WebRtcSessionTest, TestSessionContentError) {
Init();
SendAudioVideoStream1();
SessionDescriptionInterface* offer = CreateOffer();
const std::string session_id_orig = offer->session_id();
const std::string session_version_orig = offer->session_version();
SetLocalDescriptionWithoutError(offer);
video_channel_ = media_engine_->GetVideoChannel(0);
video_channel_->set_fail_set_send_codecs(true);
SessionDescriptionInterface* answer =
CreateRemoteAnswer(session_->local_description());
SetRemoteDescriptionAnswerExpectError("ERROR_CONTENT", answer);
// Test that after a content error, setting any description will
// result in an error.
video_channel_->set_fail_set_send_codecs(false);
answer = CreateRemoteAnswer(session_->local_description());
SetRemoteDescriptionExpectError("", "ERROR_CONTENT", answer);
offer = CreateRemoteOffer();
SetLocalDescriptionExpectError("", "ERROR_CONTENT", offer);
}
TEST_F(WebRtcSessionTest, TestRtpDataChannel) {
configuration_.enable_rtp_data_channel = true;
Init();
SetLocalDescriptionWithDataChannel();
ASSERT_TRUE(data_engine_);
EXPECT_NE(nullptr, data_engine_->GetChannel(0));
}
TEST_P(WebRtcSessionTest, TestRtpDataChannelConstraintTakesPrecedence) {
configuration_.enable_rtp_data_channel = true;
options_.disable_sctp_data_channels = false;
InitWithDtls(GetParam());
SetLocalDescriptionWithDataChannel();
EXPECT_NE(nullptr, data_engine_->GetChannel(0));
}
// Test that sctp_content_name/sctp_transport_name (used for stats) are correct
// before and after BUNDLE is negotiated.
TEST_P(WebRtcSessionTest, SctpContentAndTransportName) {
SetFactoryDtlsSrtp();
InitWithDtls(GetParam());
// Initially these fields should be empty.
EXPECT_FALSE(session_->sctp_content_name());
EXPECT_FALSE(session_->sctp_transport_name());
// Create offer with audio/video/data.
// Default bundle policy is "balanced", so data should be using its own
// transport.
SendAudioVideoStream1();
CreateDataChannel();
InitiateCall();
ASSERT_TRUE(session_->sctp_content_name());
ASSERT_TRUE(session_->sctp_transport_name());
EXPECT_EQ("data", *session_->sctp_content_name());
EXPECT_EQ("data", *session_->sctp_transport_name());
// Create answer that finishes BUNDLE negotiation, which means everything
// should be bundled on the first transport (audio).
cricket::MediaSessionOptions answer_options;
answer_options.bundle_enabled = true;
answer_options.data_channel_type = cricket::DCT_SCTP;
GetOptionsForAnswer(&answer_options);
SetRemoteDescriptionWithoutError(CreateRemoteAnswer(
session_->local_description(), answer_options, cricket::SEC_DISABLED));
ASSERT_TRUE(session_->sctp_content_name());
ASSERT_TRUE(session_->sctp_transport_name());
EXPECT_EQ("data", *session_->sctp_content_name());
EXPECT_EQ("audio", *session_->sctp_transport_name());
}
TEST_P(WebRtcSessionTest, TestCreateOfferWithSctpEnabledWithoutStreams) {
InitWithDtls(GetParam());
std::unique_ptr<SessionDescriptionInterface> offer(CreateOffer());
EXPECT_TRUE(offer->description()->GetContentByName("data") == NULL);
EXPECT_TRUE(offer->description()->GetTransportInfoByName("data") == NULL);
}
TEST_P(WebRtcSessionTest, TestCreateAnswerWithSctpInOfferAndNoStreams) {
SetFactoryDtlsSrtp();
InitWithDtls(GetParam());
// Create remote offer with SCTP.
cricket::MediaSessionOptions options;
options.data_channel_type = cricket::DCT_SCTP;
GetOptionsForRemoteOffer(&options);
JsepSessionDescription* offer =
CreateRemoteOffer(options, cricket::SEC_DISABLED);
SetRemoteDescriptionWithoutError(offer);
// Verifies the answer contains SCTP.
std::unique_ptr<SessionDescriptionInterface> answer(CreateAnswer());
EXPECT_TRUE(answer != NULL);
EXPECT_TRUE(answer->description()->GetContentByName("data") != NULL);
EXPECT_TRUE(answer->description()->GetTransportInfoByName("data") != NULL);
}
// Test that if DTLS is disabled, we don't end up with an SctpTransport
// created (or an RtpDataChannel).
TEST_P(WebRtcSessionTest, TestSctpDataChannelWithoutDtls) {
configuration_.enable_dtls_srtp = rtc::Optional<bool>(false);
InitWithDtls(GetParam());
SetLocalDescriptionWithDataChannel();
EXPECT_EQ(nullptr, data_engine_->GetChannel(0));
EXPECT_EQ(nullptr, fake_sctp_transport_factory_->last_fake_sctp_transport());
}
// Test that if DTLS is enabled, we end up with an SctpTransport created
// (and not an RtpDataChannel).
TEST_P(WebRtcSessionTest, TestSctpDataChannelWithDtls) {
InitWithDtls(GetParam());
SetLocalDescriptionWithDataChannel();
EXPECT_EQ(nullptr, data_engine_->GetChannel(0));
EXPECT_NE(nullptr, fake_sctp_transport_factory_->last_fake_sctp_transport());
}
// Test that if SCTP is disabled, we don't end up with an SctpTransport
// created (or an RtpDataChannel).
TEST_P(WebRtcSessionTest, TestDisableSctpDataChannels) {
options_.disable_sctp_data_channels = true;
InitWithDtls(GetParam());
SetLocalDescriptionWithDataChannel();
EXPECT_EQ(nullptr, data_engine_->GetChannel(0));
EXPECT_EQ(nullptr, fake_sctp_transport_factory_->last_fake_sctp_transport());
}
TEST_P(WebRtcSessionTest, TestSctpDataChannelSendPortParsing) {
const int new_send_port = 9998;
const int new_recv_port = 7775;
InitWithDtls(GetParam());
SetFactoryDtlsSrtp();
// By default, don't actually add the codecs to desc_factory_; they don't
// actually get serialized for SCTP in BuildMediaDescription(). Instead,
// let the session description get parsed. That'll get the proper codecs
// into the stream.
cricket::MediaSessionOptions options;
SessionDescriptionInterface* offer =
CreateRemoteOfferWithSctpPort("stream1", new_send_port, options);
// SetRemoteDescription will take the ownership of the offer.
SetRemoteDescriptionWithoutError(offer);
SessionDescriptionInterface* answer =
ChangeSDPSctpPort(new_recv_port, CreateAnswer());
ASSERT_TRUE(answer != NULL);
// Now set the local description, which'll take ownership of the answer.
SetLocalDescriptionWithoutError(answer);
// TEST PLAN: Set the port number to something new, set it in the SDP,
// and pass it all the way down.
EXPECT_EQ(nullptr, data_engine_->GetChannel(0));
CreateDataChannel();
ASSERT_NE(nullptr, fake_sctp_transport_factory_->last_fake_sctp_transport());
EXPECT_EQ(
new_recv_port,
fake_sctp_transport_factory_->last_fake_sctp_transport()->local_port());
EXPECT_EQ(
new_send_port,
fake_sctp_transport_factory_->last_fake_sctp_transport()->remote_port());
}
// Verifies that when a session's SctpTransport receives an OPEN message,
// WebRtcSession signals the SctpTransport creation request with the expected
// config.
TEST_P(WebRtcSessionTest, TestSctpDataChannelOpenMessage) {
InitWithDtls(GetParam());
SetLocalDescriptionWithDataChannel();
EXPECT_EQ(nullptr, data_engine_->GetChannel(0));
ASSERT_NE(nullptr, fake_sctp_transport_factory_->last_fake_sctp_transport());
// Make the fake SCTP transport pretend it received an OPEN message.
webrtc::DataChannelInit config;
config.id = 1;
rtc::CopyOnWriteBuffer payload;
webrtc::WriteDataChannelOpenMessage("a", config, &payload);
cricket::ReceiveDataParams params;
params.ssrc = config.id;
params.type = cricket::DMT_CONTROL;
fake_sctp_transport_factory_->last_fake_sctp_transport()->SignalDataReceived(
params, payload);
EXPECT_EQ_WAIT("a", last_data_channel_label_, kDefaultTimeout);
EXPECT_EQ(config.id, last_data_channel_config_.id);
EXPECT_FALSE(last_data_channel_config_.negotiated);
EXPECT_EQ(webrtc::InternalDataChannelInit::kAcker,
last_data_channel_config_.open_handshake_role);
}
TEST_F(WebRtcSessionTest, TestCombinedAudioVideoBweConstraint) {
configuration_.combined_audio_video_bwe = rtc::Optional<bool>(true);
Init();
SendAudioVideoStream1();
SessionDescriptionInterface* offer = CreateOffer();
SetLocalDescriptionWithoutError(offer);
voice_channel_ = media_engine_->GetVoiceChannel(0);
ASSERT_TRUE(voice_channel_ != NULL);
const cricket::AudioOptions& audio_options = voice_channel_->options();
EXPECT_EQ(rtc::Optional<bool>(true), audio_options.combined_audio_video_bwe);
}
#ifdef HAVE_QUIC
TEST_P(WebRtcSessionTest, TestNegotiateQuic) {
configuration_.enable_quic = true;
InitWithDtls(GetParam());
EXPECT_TRUE(session_->data_channel_type() == cricket::DCT_QUIC);
SessionDescriptionInterface* offer = CreateOffer();
ASSERT_TRUE(offer);
ASSERT_TRUE(offer->description());
SetLocalDescriptionWithoutError(offer);
cricket::MediaSessionOptions options;
GetOptionsForAnswer(&options);
SessionDescriptionInterface* answer =
CreateRemoteAnswer(offer, options, cricket::SEC_DISABLED);
ASSERT_TRUE(answer);
ASSERT_TRUE(answer->description());
SetRemoteDescriptionWithoutError(answer);
}
#endif // HAVE_QUIC
// Tests that RTX codec is removed from the answer when it isn't supported
// by local side.
TEST_F(WebRtcSessionTest, TestRtxRemovedByCreateAnswer) {
Init();
// Send video only to match the |kSdpWithRtx|.
SendVideoOnlyStream2();
std::string offer_sdp(kSdpWithRtx);
SessionDescriptionInterface* offer =
CreateSessionDescription(JsepSessionDescription::kOffer, offer_sdp, NULL);
EXPECT_TRUE(offer->ToString(&offer_sdp));
// Offer SDP contains the RTX codec.
EXPECT_TRUE(ContainsVideoCodecWithName(offer, "rtx"));
SetRemoteDescriptionWithoutError(offer);
// |offered_media_sections_| is used when creating answer.
offered_media_sections_.push_back(cricket::MediaDescriptionOptions(
cricket::MEDIA_TYPE_VIDEO, cricket::CN_VIDEO,
cricket::RtpTransceiverDirection(true, true), false));
// Don't create media section for audio in the answer.
SessionDescriptionInterface* answer = CreateAnswer();
// Answer SDP does not contain the RTX codec.
EXPECT_FALSE(ContainsVideoCodecWithName(answer, "rtx"));
SetLocalDescriptionWithoutError(answer);
}
// This verifies that the voice channel after bundle has both options from video
// and voice channels.
TEST_F(WebRtcSessionTest, TestSetSocketOptionBeforeBundle) {
InitWithBundlePolicy(PeerConnectionInterface::kBundlePolicyBalanced);
SendAudioVideoStream1();
PeerConnectionInterface::RTCOfferAnswerOptions options;
options.use_rtp_mux = true;
SessionDescriptionInterface* offer = CreateOffer(options);
SetLocalDescriptionWithoutError(offer);
session_->video_channel()->SetOption(cricket::BaseChannel::ST_RTP,
rtc::Socket::Option::OPT_SNDBUF, 4000);
session_->voice_channel()->SetOption(cricket::BaseChannel::ST_RTP,
rtc::Socket::Option::OPT_RCVBUF, 8000);
int option_val;
EXPECT_TRUE(session_->video_rtp_transport_channel()->GetOption(
rtc::Socket::Option::OPT_SNDBUF, &option_val));
EXPECT_EQ(4000, option_val);
EXPECT_FALSE(session_->voice_rtp_transport_channel()->GetOption(
rtc::Socket::Option::OPT_SNDBUF, &option_val));
EXPECT_TRUE(session_->voice_rtp_transport_channel()->GetOption(
rtc::Socket::Option::OPT_RCVBUF, &option_val));
EXPECT_EQ(8000, option_val);
EXPECT_FALSE(session_->video_rtp_transport_channel()->GetOption(
rtc::Socket::Option::OPT_RCVBUF, &option_val));
EXPECT_NE(session_->voice_rtp_transport_channel(),
session_->video_rtp_transport_channel());
SendAudioVideoStream2();
SessionDescriptionInterface* answer =
CreateRemoteAnswer(session_->local_description());
SetRemoteDescriptionWithoutError(answer);
EXPECT_TRUE(session_->voice_rtp_transport_channel()->GetOption(
rtc::Socket::Option::OPT_SNDBUF, &option_val));
EXPECT_EQ(4000, option_val);
EXPECT_TRUE(session_->voice_rtp_transport_channel()->GetOption(
rtc::Socket::Option::OPT_RCVBUF, &option_val));
EXPECT_EQ(8000, option_val);
}
// Test creating a session, request multiple offers, destroy the session
// and make sure we got success/failure callbacks for all of the requests.
// Background: crbug.com/507307
TEST_F(WebRtcSessionTest, CreateOffersAndShutdown) {
Init();
rtc::scoped_refptr<WebRtcSessionCreateSDPObserverForTest> observers[100];
PeerConnectionInterface::RTCOfferAnswerOptions options;
options.offer_to_receive_audio =
RTCOfferAnswerOptions::kOfferToReceiveMediaTrue;
cricket::MediaSessionOptions session_options;
GetOptionsForOffer(options, &session_options);
for (auto& o : observers) {
o = new WebRtcSessionCreateSDPObserverForTest();
session_->CreateOffer(o, options, session_options);
}
session_.reset();
for (auto& o : observers) {
// We expect to have received a notification now even if the session was
// terminated. The offer creation may or may not have succeeded, but we
// must have received a notification which, so the only invalid state
// is kInit.
EXPECT_NE(WebRtcSessionCreateSDPObserverForTest::kInit, o->state());
}
}
TEST_F(WebRtcSessionTest, TestPacketOptionsAndOnPacketSent) {
TestPacketOptions();
}
// TODO(bemasc): Add a TestIceStatesBundle with BUNDLE enabled. That test
// currently fails because upon disconnection and reconnection OnIceComplete is
// called more than once without returning to IceGatheringGathering.
INSTANTIATE_TEST_CASE_P(WebRtcSessionTests,
WebRtcSessionTest,
testing::Values(ALREADY_GENERATED,
DTLS_IDENTITY_STORE));