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webrtc / src / c03bdf9ae96ce12aedd0fee021782344a757fa68 / . / talk / app / webrtc / statscollector_unittest.cc
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/*
* libjingle
* Copyright 2014 Google Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <stdio.h>
#include <algorithm>
#include "talk/app/webrtc/statscollector.h"
#include "talk/app/webrtc/peerconnection.h"
#include "talk/app/webrtc/peerconnectionfactory.h"
#include "talk/app/webrtc/mediastream.h"
#include "talk/app/webrtc/mediastreaminterface.h"
#include "talk/app/webrtc/mediastreamtrack.h"
#include "talk/app/webrtc/test/fakedatachannelprovider.h"
#include "talk/app/webrtc/videotrack.h"
#include "talk/media/base/fakemediaengine.h"
#include "talk/session/media/channelmanager.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "webrtc/base/base64.h"
#include "webrtc/base/fakesslidentity.h"
#include "webrtc/base/gunit.h"
#include "webrtc/base/network.h"
#include "webrtc/p2p/base/faketransportcontroller.h"
using rtc::scoped_ptr;
using testing::_;
using testing::DoAll;
using testing::Field;
using testing::Return;
using testing::ReturnNull;
using testing::ReturnRef;
using testing::SetArgPointee;
using webrtc::PeerConnectionInterface;
using webrtc::StatsReport;
using webrtc::StatsReports;
namespace {
// This value comes from openssl/tls1.h
const int TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA = 0xC014;
} // namespace
namespace cricket {
class ChannelManager;
} // namespace cricket
namespace webrtc {
// Error return values
const char kNotFound[] = "NOT FOUND";
// Constant names for track identification.
const char kLocalTrackId[] = "local_track_id";
const char kRemoteTrackId[] = "remote_track_id";
const uint32_t kSsrcOfTrack = 1234;
class MockWebRtcSession : public webrtc::WebRtcSession {
public:
explicit MockWebRtcSession(webrtc::MediaControllerInterface* media_controller)
: WebRtcSession(media_controller,
rtc::Thread::Current(),
rtc::Thread::Current(),
nullptr) {}
MOCK_METHOD0(voice_channel, cricket::VoiceChannel*());
MOCK_METHOD0(video_channel, cricket::VideoChannel*());
// Libjingle uses "local" for a outgoing track, and "remote" for a incoming
// track.
MOCK_METHOD2(GetLocalTrackIdBySsrc, bool(uint32_t, std::string*));
MOCK_METHOD2(GetRemoteTrackIdBySsrc, bool(uint32_t, std::string*));
MOCK_METHOD1(GetTransportStats, bool(SessionStats*));
MOCK_METHOD2(GetLocalCertificate,
bool(const std::string& transport_name,
rtc::scoped_refptr<rtc::RTCCertificate>* certificate));
MOCK_METHOD2(GetRemoteSSLCertificate,
bool(const std::string& transport_name,
rtc::SSLCertificate** cert));
};
// The factory isn't really used; it just satisfies the base PeerConnection.
class FakePeerConnectionFactory
: public rtc::RefCountedObject<PeerConnectionFactory> {};
class MockPeerConnection
: public rtc::RefCountedObject<webrtc::PeerConnection> {
public:
MockPeerConnection()
: rtc::RefCountedObject<webrtc::PeerConnection>(
new FakePeerConnectionFactory()) {}
MOCK_METHOD0(session, WebRtcSession*());
MOCK_CONST_METHOD0(sctp_data_channels,
const std::vector<rtc::scoped_refptr<DataChannel>>&());
};
class MockVideoMediaChannel : public cricket::FakeVideoMediaChannel {
public:
MockVideoMediaChannel() :
cricket::FakeVideoMediaChannel(NULL, cricket::VideoOptions()) {}
MOCK_METHOD1(GetStats, bool(cricket::VideoMediaInfo*));
};
class MockVoiceMediaChannel : public cricket::FakeVoiceMediaChannel {
public:
MockVoiceMediaChannel() :
cricket::FakeVoiceMediaChannel(NULL, cricket::AudioOptions()) {}
MOCK_METHOD1(GetStats, bool(cricket::VoiceMediaInfo*));
};
class FakeAudioProcessor : public webrtc::AudioProcessorInterface {
public:
FakeAudioProcessor() {}
~FakeAudioProcessor() {}
private:
void GetStats(AudioProcessorInterface::AudioProcessorStats* stats) override {
stats->typing_noise_detected = true;
stats->echo_return_loss = 2;
stats->echo_return_loss_enhancement = 3;
stats->echo_delay_median_ms = 4;
stats->aec_quality_min = 5.1f;
stats->echo_delay_std_ms = 6;
}
};
class FakeAudioTrack
: public webrtc::MediaStreamTrack<webrtc::AudioTrackInterface> {
public:
explicit FakeAudioTrack(const std::string& id)
: webrtc::MediaStreamTrack<webrtc::AudioTrackInterface>(id),
processor_(new rtc::RefCountedObject<FakeAudioProcessor>()) {}
std::string kind() const override { return "audio"; }
webrtc::AudioSourceInterface* GetSource() const override { return NULL; }
void AddSink(webrtc::AudioTrackSinkInterface* sink) override {}
void RemoveSink(webrtc::AudioTrackSinkInterface* sink) override {}
bool GetSignalLevel(int* level) override {
*level = 1;
return true;
}
rtc::scoped_refptr<webrtc::AudioProcessorInterface> GetAudioProcessor()
override {
return processor_;
}
private:
rtc::scoped_refptr<FakeAudioProcessor> processor_;
};
bool GetValue(const StatsReport* report,
StatsReport::StatsValueName name,
std::string* value) {
const StatsReport::Value* v = report->FindValue(name);
if (!v)
return false;
*value = v->ToString();
return true;
}
std::string ExtractStatsValue(const StatsReport::StatsType& type,
const StatsReports& reports,
StatsReport::StatsValueName name) {
for (const auto* r : reports) {
std::string ret;
if (r->type() == type && GetValue(r, name, &ret))
return ret;
}
return kNotFound;
}
StatsReport::Id TypedIdFromIdString(StatsReport::StatsType type,
const std::string& value) {
EXPECT_FALSE(value.empty());
StatsReport::Id id;
if (value.empty())
return id;
// This has assumptions about how the ID is constructed. As is, this is
// OK since this is for testing purposes only, but if we ever need this
// in production, we should add a generic method that does this.
size_t index = value.find('_');
EXPECT_NE(index, std::string::npos);
if (index == std::string::npos || index == (value.length() - 1))
return id;
id = StatsReport::NewTypedId(type, value.substr(index + 1));
EXPECT_EQ(id->ToString(), value);
return id;
}
StatsReport::Id IdFromCertIdString(const std::string& cert_id) {
return TypedIdFromIdString(StatsReport::kStatsReportTypeCertificate, cert_id);
}
// Finds the |n|-th report of type |type| in |reports|.
// |n| starts from 1 for finding the first report.
const StatsReport* FindNthReportByType(
const StatsReports& reports, const StatsReport::StatsType& type, int n) {
for (size_t i = 0; i < reports.size(); ++i) {
if (reports[i]->type() == type) {
n--;
if (n == 0)
return reports[i];
}
}
return nullptr;
}
const StatsReport* FindReportById(const StatsReports& reports,
const StatsReport::Id& id) {
for (const auto* r : reports) {
if (r->id()->Equals(id))
return r;
}
return nullptr;
}
std::string ExtractSsrcStatsValue(StatsReports reports,
StatsReport::StatsValueName name) {
return ExtractStatsValue(StatsReport::kStatsReportTypeSsrc, reports, name);
}
std::string ExtractBweStatsValue(StatsReports reports,
StatsReport::StatsValueName name) {
return ExtractStatsValue(
StatsReport::kStatsReportTypeBwe, reports, name);
}
std::string DerToPem(const std::string& der) {
return rtc::SSLIdentity::DerToPem(
rtc::kPemTypeCertificate,
reinterpret_cast<const unsigned char*>(der.c_str()),
der.length());
}
std::vector<std::string> DersToPems(
const std::vector<std::string>& ders) {
std::vector<std::string> pems(ders.size());
std::transform(ders.begin(), ders.end(), pems.begin(), DerToPem);
return pems;
}
void CheckCertChainReports(const StatsReports& reports,
const std::vector<std::string>& ders,
const StatsReport::Id& start_id) {
StatsReport::Id cert_id;
const StatsReport::Id* certificate_id = &start_id;
size_t i = 0;
while (true) {
const StatsReport* report = FindReportById(reports, *certificate_id);
ASSERT_TRUE(report != NULL);
std::string der_base64;
EXPECT_TRUE(GetValue(
report, StatsReport::kStatsValueNameDer, &der_base64));
std::string der = rtc::Base64::Decode(der_base64, rtc::Base64::DO_STRICT);
EXPECT_EQ(ders[i], der);
std::string fingerprint_algorithm;
EXPECT_TRUE(GetValue(
report,
StatsReport::kStatsValueNameFingerprintAlgorithm,
&fingerprint_algorithm));
// The digest algorithm for a FakeSSLCertificate is always SHA-1.
std::string sha_1_str = rtc::DIGEST_SHA_1;
EXPECT_EQ(sha_1_str, fingerprint_algorithm);
std::string fingerprint;
EXPECT_TRUE(GetValue(report, StatsReport::kStatsValueNameFingerprint,
&fingerprint));
EXPECT_FALSE(fingerprint.empty());
++i;
std::string issuer_id;
if (!GetValue(report, StatsReport::kStatsValueNameIssuerId,
&issuer_id)) {
break;
}
cert_id = IdFromCertIdString(issuer_id);
certificate_id = &cert_id;
}
EXPECT_EQ(ders.size(), i);
}
void VerifyVoiceReceiverInfoReport(
const StatsReport* report,
const cricket::VoiceReceiverInfo& info) {
std::string value_in_report;
EXPECT_TRUE(GetValue(
report, StatsReport::kStatsValueNameAudioOutputLevel, &value_in_report));
EXPECT_EQ(rtc::ToString<int>(info.audio_level), value_in_report);
EXPECT_TRUE(GetValue(
report, StatsReport::kStatsValueNameBytesReceived, &value_in_report));
EXPECT_EQ(rtc::ToString<int64_t>(info.bytes_rcvd), value_in_report);
EXPECT_TRUE(GetValue(
report, StatsReport::kStatsValueNameJitterReceived, &value_in_report));
EXPECT_EQ(rtc::ToString<int>(info.jitter_ms), value_in_report);
EXPECT_TRUE(GetValue(
report, StatsReport::kStatsValueNameJitterBufferMs, &value_in_report));
EXPECT_EQ(rtc::ToString<int>(info.jitter_buffer_ms), value_in_report);
EXPECT_TRUE(GetValue(
report, StatsReport::kStatsValueNamePreferredJitterBufferMs,
&value_in_report));
EXPECT_EQ(rtc::ToString<int>(info.jitter_buffer_preferred_ms),
value_in_report);
EXPECT_TRUE(GetValue(
report, StatsReport::kStatsValueNameCurrentDelayMs, &value_in_report));
EXPECT_EQ(rtc::ToString<int>(info.delay_estimate_ms), value_in_report);
EXPECT_TRUE(GetValue(
report, StatsReport::kStatsValueNameExpandRate, &value_in_report));
EXPECT_EQ(rtc::ToString<float>(info.expand_rate), value_in_report);
EXPECT_TRUE(GetValue(
report, StatsReport::kStatsValueNameSpeechExpandRate, &value_in_report));
EXPECT_EQ(rtc::ToString<float>(info.speech_expand_rate), value_in_report);
EXPECT_TRUE(GetValue(report, StatsReport::kStatsValueNameAccelerateRate,
&value_in_report));
EXPECT_EQ(rtc::ToString<float>(info.accelerate_rate), value_in_report);
EXPECT_TRUE(GetValue(report, StatsReport::kStatsValueNamePreemptiveExpandRate,
&value_in_report));
EXPECT_EQ(rtc::ToString<float>(info.preemptive_expand_rate), value_in_report);
EXPECT_TRUE(GetValue(report, StatsReport::kStatsValueNameSecondaryDecodedRate,
&value_in_report));
EXPECT_EQ(rtc::ToString<float>(info.secondary_decoded_rate), value_in_report);
EXPECT_TRUE(GetValue(
report, StatsReport::kStatsValueNamePacketsReceived, &value_in_report));
EXPECT_EQ(rtc::ToString<int>(info.packets_rcvd), value_in_report);
EXPECT_TRUE(GetValue(
report, StatsReport::kStatsValueNameDecodingCTSG, &value_in_report));
EXPECT_EQ(rtc::ToString<int>(info.decoding_calls_to_silence_generator),
value_in_report);
EXPECT_TRUE(GetValue(
report, StatsReport::kStatsValueNameDecodingCTN, &value_in_report));
EXPECT_EQ(rtc::ToString<int>(info.decoding_calls_to_neteq),
value_in_report);
EXPECT_TRUE(GetValue(
report, StatsReport::kStatsValueNameDecodingNormal, &value_in_report));
EXPECT_EQ(rtc::ToString<int>(info.decoding_normal), value_in_report);
EXPECT_TRUE(GetValue(
report, StatsReport::kStatsValueNameDecodingPLC, &value_in_report));
EXPECT_EQ(rtc::ToString<int>(info.decoding_plc), value_in_report);
EXPECT_TRUE(GetValue(
report, StatsReport::kStatsValueNameDecodingCNG, &value_in_report));
EXPECT_EQ(rtc::ToString<int>(info.decoding_cng), value_in_report);
EXPECT_TRUE(GetValue(
report, StatsReport::kStatsValueNameDecodingPLCCNG, &value_in_report));
EXPECT_EQ(rtc::ToString<int>(info.decoding_plc_cng), value_in_report);
EXPECT_TRUE(GetValue(
report, StatsReport::kStatsValueNameCodecName, &value_in_report));
}
void VerifyVoiceSenderInfoReport(const StatsReport* report,
const cricket::VoiceSenderInfo& sinfo) {
std::string value_in_report;
EXPECT_TRUE(GetValue(
report, StatsReport::kStatsValueNameCodecName, &value_in_report));
EXPECT_EQ(sinfo.codec_name, value_in_report);
EXPECT_TRUE(GetValue(
report, StatsReport::kStatsValueNameBytesSent, &value_in_report));
EXPECT_EQ(rtc::ToString<int64_t>(sinfo.bytes_sent), value_in_report);
EXPECT_TRUE(GetValue(
report, StatsReport::kStatsValueNamePacketsSent, &value_in_report));
EXPECT_EQ(rtc::ToString<int>(sinfo.packets_sent), value_in_report);
EXPECT_TRUE(GetValue(
report, StatsReport::kStatsValueNamePacketsLost, &value_in_report));
EXPECT_EQ(rtc::ToString<int>(sinfo.packets_lost), value_in_report);
EXPECT_TRUE(GetValue(
report, StatsReport::kStatsValueNameRtt, &value_in_report));
EXPECT_EQ(rtc::ToString<int>(sinfo.rtt_ms), value_in_report);
EXPECT_TRUE(GetValue(
report, StatsReport::kStatsValueNameRtt, &value_in_report));
EXPECT_EQ(rtc::ToString<int>(sinfo.rtt_ms), value_in_report);
EXPECT_TRUE(GetValue(
report, StatsReport::kStatsValueNameJitterReceived, &value_in_report));
EXPECT_EQ(rtc::ToString<int>(sinfo.jitter_ms), value_in_report);
EXPECT_TRUE(GetValue(
report, StatsReport::kStatsValueNameEchoCancellationQualityMin,
&value_in_report));
EXPECT_EQ(rtc::ToString<float>(sinfo.aec_quality_min), value_in_report);
EXPECT_TRUE(GetValue(
report, StatsReport::kStatsValueNameEchoDelayMedian, &value_in_report));
EXPECT_EQ(rtc::ToString<int>(sinfo.echo_delay_median_ms),
value_in_report);
EXPECT_TRUE(GetValue(
report, StatsReport::kStatsValueNameEchoDelayStdDev, &value_in_report));
EXPECT_EQ(rtc::ToString<int>(sinfo.echo_delay_std_ms),
value_in_report);
EXPECT_TRUE(GetValue(
report, StatsReport::kStatsValueNameEchoReturnLoss, &value_in_report));
EXPECT_EQ(rtc::ToString<int>(sinfo.echo_return_loss),
value_in_report);
EXPECT_TRUE(GetValue(
report, StatsReport::kStatsValueNameEchoReturnLossEnhancement,
&value_in_report));
EXPECT_EQ(rtc::ToString<int>(sinfo.echo_return_loss_enhancement),
value_in_report);
EXPECT_TRUE(GetValue(
report, StatsReport::kStatsValueNameAudioInputLevel, &value_in_report));
EXPECT_EQ(rtc::ToString<int>(sinfo.audio_level), value_in_report);
EXPECT_TRUE(GetValue(
report, StatsReport::kStatsValueNameTypingNoiseState, &value_in_report));
std::string typing_detected = sinfo.typing_noise_detected ? "true" : "false";
EXPECT_EQ(typing_detected, value_in_report);
}
// Helper methods to avoid duplication of code.
void InitVoiceSenderInfo(cricket::VoiceSenderInfo* voice_sender_info) {
voice_sender_info->add_ssrc(kSsrcOfTrack);
voice_sender_info->codec_name = "fake_codec";
voice_sender_info->bytes_sent = 100;
voice_sender_info->packets_sent = 101;
voice_sender_info->rtt_ms = 102;
voice_sender_info->fraction_lost = 103;
voice_sender_info->jitter_ms = 104;
voice_sender_info->packets_lost = 105;
voice_sender_info->ext_seqnum = 106;
voice_sender_info->audio_level = 107;
voice_sender_info->echo_return_loss = 108;
voice_sender_info->echo_return_loss_enhancement = 109;
voice_sender_info->echo_delay_median_ms = 110;
voice_sender_info->echo_delay_std_ms = 111;
voice_sender_info->aec_quality_min = 112.0f;
voice_sender_info->typing_noise_detected = false;
}
void UpdateVoiceSenderInfoFromAudioTrack(
FakeAudioTrack* audio_track, cricket::VoiceSenderInfo* voice_sender_info) {
audio_track->GetSignalLevel(&voice_sender_info->audio_level);
webrtc::AudioProcessorInterface::AudioProcessorStats audio_processor_stats;
audio_track->GetAudioProcessor()->GetStats(&audio_processor_stats);
voice_sender_info->typing_noise_detected =
audio_processor_stats.typing_noise_detected;
voice_sender_info->echo_return_loss = audio_processor_stats.echo_return_loss;
voice_sender_info->echo_return_loss_enhancement =
audio_processor_stats.echo_return_loss_enhancement;
voice_sender_info->echo_delay_median_ms =
audio_processor_stats.echo_delay_median_ms;
voice_sender_info->aec_quality_min = audio_processor_stats.aec_quality_min;
voice_sender_info->echo_delay_std_ms =
audio_processor_stats.echo_delay_std_ms;
}
void InitVoiceReceiverInfo(cricket::VoiceReceiverInfo* voice_receiver_info) {
voice_receiver_info->add_ssrc(kSsrcOfTrack);
voice_receiver_info->bytes_rcvd = 110;
voice_receiver_info->packets_rcvd = 111;
voice_receiver_info->packets_lost = 112;
voice_receiver_info->fraction_lost = 113;
voice_receiver_info->packets_lost = 114;
voice_receiver_info->ext_seqnum = 115;
voice_receiver_info->jitter_ms = 116;
voice_receiver_info->jitter_buffer_ms = 117;
voice_receiver_info->jitter_buffer_preferred_ms = 118;
voice_receiver_info->delay_estimate_ms = 119;
voice_receiver_info->audio_level = 120;
voice_receiver_info->expand_rate = 121;
voice_receiver_info->speech_expand_rate = 122;
voice_receiver_info->secondary_decoded_rate = 123;
voice_receiver_info->accelerate_rate = 124;
voice_receiver_info->preemptive_expand_rate = 125;
}
class StatsCollectorForTest : public webrtc::StatsCollector {
public:
explicit StatsCollectorForTest(PeerConnection* pc)
: StatsCollector(pc), time_now_(19477) {}
double GetTimeNow() override {
return time_now_;
}
private:
double time_now_;
};
class StatsCollectorTest : public testing::Test {
protected:
StatsCollectorTest()
: media_engine_(new cricket::FakeMediaEngine()),
channel_manager_(
new cricket::ChannelManager(media_engine_, rtc::Thread::Current())),
media_controller_(
webrtc::MediaControllerInterface::Create(rtc::Thread::Current(),
channel_manager_.get())),
session_(media_controller_.get()) {
// By default, we ignore session GetStats calls.
EXPECT_CALL(session_, GetTransportStats(_)).WillRepeatedly(Return(false));
// Add default returns for mock classes.
EXPECT_CALL(session_, video_channel()).WillRepeatedly(ReturnNull());
EXPECT_CALL(session_, voice_channel()).WillRepeatedly(ReturnNull());
EXPECT_CALL(pc_, session()).WillRepeatedly(Return(&session_));
EXPECT_CALL(pc_, sctp_data_channels())
.WillRepeatedly(ReturnRef(data_channels_));
}
~StatsCollectorTest() {}
// This creates a standard setup with a transport called "trspname"
// having one transport channel
// and the specified virtual connection name.
void InitSessionStats(const std::string& vc_name) {
const std::string kTransportName("trspname");
cricket::TransportStats transport_stats;
cricket::TransportChannelStats channel_stats;
channel_stats.component = 1;
transport_stats.transport_name = kTransportName;
transport_stats.channel_stats.push_back(channel_stats);
session_stats_.transport_stats[kTransportName] = transport_stats;
session_stats_.proxy_to_transport[vc_name] = kTransportName;
}
// Adds a outgoing video track with a given SSRC into the stats.
void AddOutgoingVideoTrackStats() {
stream_ = webrtc::MediaStream::Create("streamlabel");
track_= webrtc::VideoTrack::Create(kLocalTrackId, NULL);
stream_->AddTrack(track_);
EXPECT_CALL(session_, GetLocalTrackIdBySsrc(kSsrcOfTrack, _))
.WillRepeatedly(DoAll(SetArgPointee<1>(kLocalTrackId), Return(true)));
}
// Adds a incoming video track with a given SSRC into the stats.
void AddIncomingVideoTrackStats() {
stream_ = webrtc::MediaStream::Create("streamlabel");
track_= webrtc::VideoTrack::Create(kRemoteTrackId, NULL);
stream_->AddTrack(track_);
EXPECT_CALL(session_, GetRemoteTrackIdBySsrc(kSsrcOfTrack, _))
.WillRepeatedly(DoAll(SetArgPointee<1>(kRemoteTrackId), Return(true)));
}
// Adds a outgoing audio track with a given SSRC into the stats.
void AddOutgoingAudioTrackStats() {
if (stream_ == NULL)
stream_ = webrtc::MediaStream::Create("streamlabel");
audio_track_ = new rtc::RefCountedObject<FakeAudioTrack>(
kLocalTrackId);
stream_->AddTrack(audio_track_);
EXPECT_CALL(session_, GetLocalTrackIdBySsrc(kSsrcOfTrack, _))
.WillOnce(DoAll(SetArgPointee<1>(kLocalTrackId), Return(true)));
}
// Adds a incoming audio track with a given SSRC into the stats.
void AddIncomingAudioTrackStats() {
if (stream_ == NULL)
stream_ = webrtc::MediaStream::Create("streamlabel");
audio_track_ = new rtc::RefCountedObject<FakeAudioTrack>(
kRemoteTrackId);
stream_->AddTrack(audio_track_);
EXPECT_CALL(session_, GetRemoteTrackIdBySsrc(kSsrcOfTrack, _))
.WillOnce(DoAll(SetArgPointee<1>(kRemoteTrackId), Return(true)));
}
void AddDataChannel(cricket::DataChannelType type,
const std::string& label,
int id) {
InternalDataChannelInit config;
config.id = id;
data_channels_.push_back(DataChannel::Create(
&data_channel_provider_, cricket::DCT_SCTP, label, config));
}
StatsReport* AddCandidateReport(StatsCollector* collector,
const cricket::Candidate& candidate,
bool local) {
return collector->AddCandidateReport(candidate, local);
}
void SetupAndVerifyAudioTrackStats(
FakeAudioTrack* audio_track,
webrtc::MediaStream* stream,
webrtc::StatsCollector* stats,
cricket::VoiceChannel* voice_channel,
const std::string& vc_name,
MockVoiceMediaChannel* media_channel,
cricket::VoiceSenderInfo* voice_sender_info,
cricket::VoiceReceiverInfo* voice_receiver_info,
cricket::VoiceMediaInfo* stats_read,
StatsReports* reports) {
// A track can't have both sender report and recv report at the same time
// for now, this might change in the future though.
ASSERT((voice_sender_info == NULL) ^ (voice_receiver_info == NULL));
// Instruct the session to return stats containing the transport channel.
InitSessionStats(vc_name);
EXPECT_CALL(session_, GetTransportStats(_))
.WillRepeatedly(DoAll(SetArgPointee<0>(session_stats_),
Return(true)));
// Constructs an ssrc stats update.
if (voice_sender_info)
stats_read->senders.push_back(*voice_sender_info);
if (voice_receiver_info)
stats_read->receivers.push_back(*voice_receiver_info);
EXPECT_CALL(session_, voice_channel()).WillRepeatedly(
Return(voice_channel));
EXPECT_CALL(session_, video_channel()).WillRepeatedly(ReturnNull());
EXPECT_CALL(*media_channel, GetStats(_))
.WillOnce(DoAll(SetArgPointee<0>(*stats_read), Return(true)));
stats->UpdateStats(PeerConnectionInterface::kStatsOutputLevelStandard);
stats->ClearUpdateStatsCacheForTest();
stats->GetStats(NULL, reports);
// Verify the existence of the track report.
const StatsReport* report = FindNthReportByType(
*reports, StatsReport::kStatsReportTypeSsrc, 1);
EXPECT_FALSE(report == NULL);
EXPECT_EQ(stats->GetTimeNow(), report->timestamp());
std::string track_id = ExtractSsrcStatsValue(
*reports, StatsReport::kStatsValueNameTrackId);
EXPECT_EQ(audio_track->id(), track_id);
std::string ssrc_id = ExtractSsrcStatsValue(
*reports, StatsReport::kStatsValueNameSsrc);
EXPECT_EQ(rtc::ToString<uint32_t>(kSsrcOfTrack), ssrc_id);
// Verifies the values in the track report.
if (voice_sender_info) {
UpdateVoiceSenderInfoFromAudioTrack(audio_track, voice_sender_info);
VerifyVoiceSenderInfoReport(report, *voice_sender_info);
}
if (voice_receiver_info) {
VerifyVoiceReceiverInfoReport(report, *voice_receiver_info);
}
// Verify we get the same result by passing a track to GetStats().
StatsReports track_reports; // returned values.
stats->GetStats(audio_track, &track_reports);
const StatsReport* track_report = FindNthReportByType(
track_reports, StatsReport::kStatsReportTypeSsrc, 1);
EXPECT_TRUE(track_report);
EXPECT_EQ(stats->GetTimeNow(), track_report->timestamp());
track_id = ExtractSsrcStatsValue(track_reports,
StatsReport::kStatsValueNameTrackId);
EXPECT_EQ(audio_track->id(), track_id);
ssrc_id = ExtractSsrcStatsValue(track_reports,
StatsReport::kStatsValueNameSsrc);
EXPECT_EQ(rtc::ToString<uint32_t>(kSsrcOfTrack), ssrc_id);
if (voice_sender_info)
VerifyVoiceSenderInfoReport(track_report, *voice_sender_info);
if (voice_receiver_info)
VerifyVoiceReceiverInfoReport(track_report, *voice_receiver_info);
}
void TestCertificateReports(const rtc::FakeSSLCertificate& local_cert,
const std::vector<std::string>& local_ders,
const rtc::FakeSSLCertificate& remote_cert,
const std::vector<std::string>& remote_ders) {
StatsCollectorForTest stats(&pc_);
StatsReports reports; // returned values.
// Fake stats to process.
cricket::TransportChannelStats channel_stats;
channel_stats.component = 1;
channel_stats.srtp_crypto_suite = rtc::SRTP_AES128_CM_SHA1_80;
channel_stats.ssl_cipher_suite = TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA;
cricket::TransportStats transport_stats;
transport_stats.transport_name = "audio";
transport_stats.channel_stats.push_back(channel_stats);
SessionStats session_stats;
session_stats.transport_stats[transport_stats.transport_name] =
transport_stats;
// Fake certificate to report
rtc::scoped_refptr<rtc::RTCCertificate> local_certificate(
rtc::RTCCertificate::Create(rtc::scoped_ptr<rtc::FakeSSLIdentity>(
new rtc::FakeSSLIdentity(local_cert))
.Pass()));
// Configure MockWebRtcSession
EXPECT_CALL(session_,
GetLocalCertificate(transport_stats.transport_name, _))
.WillOnce(DoAll(SetArgPointee<1>(local_certificate), Return(true)));
EXPECT_CALL(session_,
GetRemoteSSLCertificate(transport_stats.transport_name, _))
.WillOnce(
DoAll(SetArgPointee<1>(remote_cert.GetReference()), Return(true)));
EXPECT_CALL(session_, GetTransportStats(_))
.WillOnce(DoAll(SetArgPointee<0>(session_stats),
Return(true)));
stats.UpdateStats(PeerConnectionInterface::kStatsOutputLevelStandard);
stats.GetStats(NULL, &reports);
const StatsReport* channel_report = FindNthReportByType(
reports, StatsReport::kStatsReportTypeComponent, 1);
EXPECT_TRUE(channel_report != NULL);
// Check local certificate chain.
std::string local_certificate_id = ExtractStatsValue(
StatsReport::kStatsReportTypeComponent,
reports,
StatsReport::kStatsValueNameLocalCertificateId);
if (local_ders.size() > 0) {
EXPECT_NE(kNotFound, local_certificate_id);
StatsReport::Id id(IdFromCertIdString(local_certificate_id));
CheckCertChainReports(reports, local_ders, id);
} else {
EXPECT_EQ(kNotFound, local_certificate_id);
}
// Check remote certificate chain.
std::string remote_certificate_id = ExtractStatsValue(
StatsReport::kStatsReportTypeComponent,
reports,
StatsReport::kStatsValueNameRemoteCertificateId);
if (remote_ders.size() > 0) {
EXPECT_NE(kNotFound, remote_certificate_id);
StatsReport::Id id(IdFromCertIdString(remote_certificate_id));
CheckCertChainReports(reports, remote_ders, id);
} else {
EXPECT_EQ(kNotFound, remote_certificate_id);
}
// Check negotiated ciphers.
std::string dtls_cipher_suite =
ExtractStatsValue(StatsReport::kStatsReportTypeComponent, reports,
StatsReport::kStatsValueNameDtlsCipher);
EXPECT_EQ(rtc::SSLStreamAdapter::SslCipherSuiteToName(
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA),
dtls_cipher_suite);
std::string srtp_crypto_suite =
ExtractStatsValue(StatsReport::kStatsReportTypeComponent, reports,
StatsReport::kStatsValueNameSrtpCipher);
EXPECT_EQ(rtc::SrtpCryptoSuiteToName(rtc::SRTP_AES128_CM_SHA1_80),
srtp_crypto_suite);
}
cricket::FakeMediaEngine* media_engine_;
rtc::scoped_ptr<cricket::ChannelManager> channel_manager_;
rtc::scoped_ptr<webrtc::MediaControllerInterface> media_controller_;
MockWebRtcSession session_;
MockPeerConnection pc_;
FakeDataChannelProvider data_channel_provider_;
SessionStats session_stats_;
rtc::scoped_refptr<webrtc::MediaStream> stream_;
rtc::scoped_refptr<webrtc::VideoTrack> track_;
rtc::scoped_refptr<FakeAudioTrack> audio_track_;
std::vector<rtc::scoped_refptr<DataChannel>> data_channels_;
};
// Verify that ExtractDataInfo populates reports.
TEST_F(StatsCollectorTest, ExtractDataInfo) {
const std::string label = "hacks";
const int id = 31337;
const std::string state = DataChannelInterface::DataStateString(
DataChannelInterface::DataState::kConnecting);
AddDataChannel(cricket::DCT_SCTP, label, id);
StatsCollectorForTest stats(&pc_);
stats.UpdateStats(PeerConnectionInterface::kStatsOutputLevelStandard);
StatsReports reports;
stats.GetStats(NULL, &reports);
const StatsReport* report =
FindNthReportByType(reports, StatsReport::kStatsReportTypeDataChannel, 1);
StatsReport::Id reportId = StatsReport::NewTypedIntId(
StatsReport::kStatsReportTypeDataChannel, id);
EXPECT_TRUE(reportId->Equals(report->id()));
EXPECT_EQ(stats.GetTimeNow(), report->timestamp());
EXPECT_EQ(label, ExtractStatsValue(StatsReport::kStatsReportTypeDataChannel,
reports,
StatsReport::kStatsValueNameLabel));
EXPECT_EQ(rtc::ToString<int64_t>(id),
ExtractStatsValue(StatsReport::kStatsReportTypeDataChannel, reports,
StatsReport::kStatsValueNameDataChannelId));
EXPECT_EQ(state, ExtractStatsValue(StatsReport::kStatsReportTypeDataChannel,
reports,
StatsReport::kStatsValueNameState));
EXPECT_EQ("", ExtractStatsValue(StatsReport::kStatsReportTypeDataChannel,
reports,
StatsReport::kStatsValueNameProtocol));
}
// This test verifies that 64-bit counters are passed successfully.
TEST_F(StatsCollectorTest, BytesCounterHandles64Bits) {
StatsCollectorForTest stats(&pc_);
EXPECT_CALL(session_, GetLocalCertificate(_, _))
.WillRepeatedly(Return(false));
EXPECT_CALL(session_, GetRemoteSSLCertificate(_, _))
.WillRepeatedly(Return(false));
const char kVideoChannelName[] = "video";
InitSessionStats(kVideoChannelName);
EXPECT_CALL(session_, GetTransportStats(_))
.WillRepeatedly(DoAll(SetArgPointee<0>(session_stats_),
Return(true)));
MockVideoMediaChannel* media_channel = new MockVideoMediaChannel();
cricket::VideoChannel video_channel(rtc::Thread::Current(), media_channel,
nullptr, kVideoChannelName, false);
StatsReports reports; // returned values.
cricket::VideoSenderInfo video_sender_info;
cricket::VideoMediaInfo stats_read;
// The number of bytes must be larger than 0xFFFFFFFF for this test.
const int64_t kBytesSent = 12345678901234LL;
const std::string kBytesSentString("12345678901234");
AddOutgoingVideoTrackStats();
stats.AddStream(stream_);
// Construct a stats value to read.
video_sender_info.add_ssrc(1234);
video_sender_info.bytes_sent = kBytesSent;
stats_read.senders.push_back(video_sender_info);
EXPECT_CALL(session_, video_channel()).WillRepeatedly(Return(&video_channel));
EXPECT_CALL(session_, voice_channel()).WillRepeatedly(ReturnNull());
EXPECT_CALL(*media_channel, GetStats(_))
.WillOnce(DoAll(SetArgPointee<0>(stats_read),
Return(true)));
stats.UpdateStats(PeerConnectionInterface::kStatsOutputLevelStandard);
stats.GetStats(NULL, &reports);
std::string result = ExtractSsrcStatsValue(reports,
StatsReport::kStatsValueNameBytesSent);
EXPECT_EQ(kBytesSentString, result);
}
// Test that BWE information is reported via stats.
TEST_F(StatsCollectorTest, BandwidthEstimationInfoIsReported) {
StatsCollectorForTest stats(&pc_);
EXPECT_CALL(session_, GetLocalCertificate(_, _))
.WillRepeatedly(Return(false));
EXPECT_CALL(session_, GetRemoteSSLCertificate(_, _))
.WillRepeatedly(Return(false));
const char kVideoChannelName[] = "video";
InitSessionStats(kVideoChannelName);
EXPECT_CALL(session_, GetTransportStats(_))
.WillRepeatedly(DoAll(SetArgPointee<0>(session_stats_),
Return(true)));
MockVideoMediaChannel* media_channel = new MockVideoMediaChannel();
cricket::VideoChannel video_channel(rtc::Thread::Current(), media_channel,
nullptr, kVideoChannelName, false);
StatsReports reports; // returned values.
cricket::VideoSenderInfo video_sender_info;
cricket::VideoMediaInfo stats_read;
// Set up an SSRC just to test that we get both kinds of stats back: SSRC and
// BWE.
const int64_t kBytesSent = 12345678901234LL;
const std::string kBytesSentString("12345678901234");
AddOutgoingVideoTrackStats();
stats.AddStream(stream_);
// Construct a stats value to read.
video_sender_info.add_ssrc(1234);
video_sender_info.bytes_sent = kBytesSent;
stats_read.senders.push_back(video_sender_info);
cricket::BandwidthEstimationInfo bwe;
const int kTargetEncBitrate = 123456;
const std::string kTargetEncBitrateString("123456");
bwe.target_enc_bitrate = kTargetEncBitrate;
stats_read.bw_estimations.push_back(bwe);
EXPECT_CALL(session_, video_channel()).WillRepeatedly(Return(&video_channel));
EXPECT_CALL(session_, voice_channel()).WillRepeatedly(ReturnNull());
EXPECT_CALL(*media_channel, GetStats(_))
.WillOnce(DoAll(SetArgPointee<0>(stats_read), Return(true)));
stats.UpdateStats(PeerConnectionInterface::kStatsOutputLevelStandard);
stats.GetStats(NULL, &reports);
std::string result = ExtractSsrcStatsValue(reports,
StatsReport::kStatsValueNameBytesSent);
EXPECT_EQ(kBytesSentString, result);
result = ExtractBweStatsValue(reports,
StatsReport::kStatsValueNameTargetEncBitrate);
EXPECT_EQ(kTargetEncBitrateString, result);
}
// This test verifies that an object of type "googSession" always
// exists in the returned stats.
TEST_F(StatsCollectorTest, SessionObjectExists) {
StatsCollectorForTest stats(&pc_);
StatsReports reports; // returned values.
stats.UpdateStats(PeerConnectionInterface::kStatsOutputLevelStandard);
stats.GetStats(NULL, &reports);
const StatsReport* session_report = FindNthReportByType(
reports, StatsReport::kStatsReportTypeSession, 1);
EXPECT_FALSE(session_report == NULL);
}
// This test verifies that only one object of type "googSession" exists
// in the returned stats.
TEST_F(StatsCollectorTest, OnlyOneSessionObjectExists) {
StatsCollectorForTest stats(&pc_);
StatsReports reports; // returned values.
stats.UpdateStats(PeerConnectionInterface::kStatsOutputLevelStandard);
stats.UpdateStats(PeerConnectionInterface::kStatsOutputLevelStandard);
stats.GetStats(NULL, &reports);
const StatsReport* session_report = FindNthReportByType(
reports, StatsReport::kStatsReportTypeSession, 1);
EXPECT_FALSE(session_report == NULL);
session_report = FindNthReportByType(
reports, StatsReport::kStatsReportTypeSession, 2);
EXPECT_EQ(NULL, session_report);
}
// This test verifies that the empty track report exists in the returned stats
// without calling StatsCollector::UpdateStats.
TEST_F(StatsCollectorTest, TrackObjectExistsWithoutUpdateStats) {
StatsCollectorForTest stats(&pc_);
MockVideoMediaChannel* media_channel = new MockVideoMediaChannel();
cricket::VideoChannel video_channel(rtc::Thread::Current(), media_channel,
nullptr, "video", false);
AddOutgoingVideoTrackStats();
stats.AddStream(stream_);
// Verfies the existence of the track report.
StatsReports reports;
stats.GetStats(NULL, &reports);
EXPECT_EQ((size_t)1, reports.size());
EXPECT_EQ(StatsReport::kStatsReportTypeTrack, reports[0]->type());
EXPECT_EQ(0, reports[0]->timestamp());
std::string trackValue =
ExtractStatsValue(StatsReport::kStatsReportTypeTrack,
reports,
StatsReport::kStatsValueNameTrackId);
EXPECT_EQ(kLocalTrackId, trackValue);
}
// This test verifies that the empty track report exists in the returned stats
// when StatsCollector::UpdateStats is called with ssrc stats.
TEST_F(StatsCollectorTest, TrackAndSsrcObjectExistAfterUpdateSsrcStats) {
StatsCollectorForTest stats(&pc_);
EXPECT_CALL(session_, GetLocalCertificate(_, _))
.WillRepeatedly(Return(false));
EXPECT_CALL(session_, GetRemoteSSLCertificate(_, _))
.WillRepeatedly(Return(false));
const char kVideoChannelName[] = "video";
InitSessionStats(kVideoChannelName);
EXPECT_CALL(session_, GetTransportStats(_))
.WillRepeatedly(DoAll(SetArgPointee<0>(session_stats_),
Return(true)));
MockVideoMediaChannel* media_channel = new MockVideoMediaChannel();
cricket::VideoChannel video_channel(rtc::Thread::Current(), media_channel,
nullptr, kVideoChannelName, false);
AddOutgoingVideoTrackStats();
stats.AddStream(stream_);
// Constructs an ssrc stats update.
cricket::VideoSenderInfo video_sender_info;
cricket::VideoMediaInfo stats_read;
const int64_t kBytesSent = 12345678901234LL;
// Construct a stats value to read.
video_sender_info.add_ssrc(1234);
video_sender_info.bytes_sent = kBytesSent;
stats_read.senders.push_back(video_sender_info);
EXPECT_CALL(session_, video_channel()).WillRepeatedly(Return(&video_channel));
EXPECT_CALL(session_, voice_channel()).WillRepeatedly(ReturnNull());
EXPECT_CALL(*media_channel, GetStats(_))
.WillOnce(DoAll(SetArgPointee<0>(stats_read),
Return(true)));
stats.UpdateStats(PeerConnectionInterface::kStatsOutputLevelStandard);
StatsReports reports;
stats.GetStats(NULL, &reports);
// |reports| should contain at least one session report, one track report,
// and one ssrc report.
EXPECT_LE((size_t)3, reports.size());
const StatsReport* track_report = FindNthReportByType(
reports, StatsReport::kStatsReportTypeTrack, 1);
EXPECT_TRUE(track_report);
// Get report for the specific |track|.
reports.clear();
stats.GetStats(track_, &reports);
// |reports| should contain at least one session report, one track report,
// and one ssrc report.
EXPECT_LE((size_t)3, reports.size());
track_report = FindNthReportByType(
reports, StatsReport::kStatsReportTypeTrack, 1);
EXPECT_TRUE(track_report);
EXPECT_EQ(stats.GetTimeNow(), track_report->timestamp());
std::string ssrc_id = ExtractSsrcStatsValue(
reports, StatsReport::kStatsValueNameSsrc);
EXPECT_EQ(rtc::ToString<uint32_t>(kSsrcOfTrack), ssrc_id);
std::string track_id = ExtractSsrcStatsValue(
reports, StatsReport::kStatsValueNameTrackId);
EXPECT_EQ(kLocalTrackId, track_id);
}
// This test verifies that an SSRC object has the identifier of a Transport
// stats object, and that this transport stats object exists in stats.
TEST_F(StatsCollectorTest, TransportObjectLinkedFromSsrcObject) {
StatsCollectorForTest stats(&pc_);
EXPECT_CALL(session_, GetLocalCertificate(_, _))
.WillRepeatedly(Return(false));
EXPECT_CALL(session_, GetRemoteSSLCertificate(_, _))
.WillRepeatedly(Return(false));
MockVideoMediaChannel* media_channel = new MockVideoMediaChannel();
// The transport_name known by the video channel.
const std::string kVcName("vcname");
cricket::VideoChannel video_channel(rtc::Thread::Current(), media_channel,
nullptr, kVcName, false);
AddOutgoingVideoTrackStats();
stats.AddStream(stream_);
// Constructs an ssrc stats update.
cricket::VideoSenderInfo video_sender_info;
cricket::VideoMediaInfo stats_read;
const int64_t kBytesSent = 12345678901234LL;
// Construct a stats value to read.
video_sender_info.add_ssrc(1234);
video_sender_info.bytes_sent = kBytesSent;
stats_read.senders.push_back(video_sender_info);
EXPECT_CALL(session_, video_channel()).WillRepeatedly(Return(&video_channel));
EXPECT_CALL(session_, voice_channel()).WillRepeatedly(ReturnNull());
EXPECT_CALL(*media_channel, GetStats(_))
.WillRepeatedly(DoAll(SetArgPointee<0>(stats_read),
Return(true)));
InitSessionStats(kVcName);
EXPECT_CALL(session_, GetTransportStats(_))
.WillRepeatedly(DoAll(SetArgPointee<0>(session_stats_),
Return(true)));
stats.UpdateStats(PeerConnectionInterface::kStatsOutputLevelStandard);
StatsReports reports;
stats.GetStats(NULL, &reports);
std::string transport_id = ExtractStatsValue(
StatsReport::kStatsReportTypeSsrc,
reports,
StatsReport::kStatsValueNameTransportId);
ASSERT_NE(kNotFound, transport_id);
// Transport id component ID will always be 1.
// This has assumptions about how the ID is constructed. As is, this is
// OK since this is for testing purposes only, but if we ever need this
// in production, we should add a generic method that does this.
size_t index = transport_id.find('-');
ASSERT_NE(std::string::npos, index);
std::string content = transport_id.substr(index + 1);
index = content.rfind('-');
ASSERT_NE(std::string::npos, index);
content = content.substr(0, index);
StatsReport::Id id(StatsReport::NewComponentId(content, 1));
ASSERT_EQ(transport_id, id->ToString());
const StatsReport* transport_report = FindReportById(reports, id);
ASSERT_FALSE(transport_report == NULL);
}
// This test verifies that a remote stats object will not be created for
// an outgoing SSRC where remote stats are not returned.
TEST_F(StatsCollectorTest, RemoteSsrcInfoIsAbsent) {
StatsCollectorForTest stats(&pc_);
MockVideoMediaChannel* media_channel = new MockVideoMediaChannel();
// The transport_name known by the video channel.
const std::string kVcName("vcname");
cricket::VideoChannel video_channel(rtc::Thread::Current(), media_channel,
nullptr, kVcName, false);
AddOutgoingVideoTrackStats();
stats.AddStream(stream_);
stats.UpdateStats(PeerConnectionInterface::kStatsOutputLevelStandard);
StatsReports reports;
stats.GetStats(NULL, &reports);
const StatsReport* remote_report = FindNthReportByType(reports,
StatsReport::kStatsReportTypeRemoteSsrc, 1);
EXPECT_TRUE(remote_report == NULL);
}
// This test verifies that a remote stats object will be created for
// an outgoing SSRC where stats are returned.
TEST_F(StatsCollectorTest, RemoteSsrcInfoIsPresent) {
StatsCollectorForTest stats(&pc_);
EXPECT_CALL(session_, GetLocalCertificate(_, _))
.WillRepeatedly(Return(false));
EXPECT_CALL(session_, GetRemoteSSLCertificate(_, _))
.WillRepeatedly(Return(false));
MockVideoMediaChannel* media_channel = new MockVideoMediaChannel();
// The transport_name known by the video channel.
const std::string kVcName("vcname");
cricket::VideoChannel video_channel(rtc::Thread::Current(), media_channel,
nullptr, kVcName, false);
AddOutgoingVideoTrackStats();
stats.AddStream(stream_);
// Instruct the session to return stats containing the transport channel.
InitSessionStats(kVcName);
EXPECT_CALL(session_, GetTransportStats(_))
.WillRepeatedly(DoAll(SetArgPointee<0>(session_stats_),
Return(true)));
// Constructs an ssrc stats update.
cricket::VideoMediaInfo stats_read;
cricket::SsrcReceiverInfo remote_ssrc_stats;
remote_ssrc_stats.timestamp = 12345.678;
remote_ssrc_stats.ssrc = kSsrcOfTrack;
cricket::VideoSenderInfo video_sender_info;
video_sender_info.add_ssrc(kSsrcOfTrack);
video_sender_info.remote_stats.push_back(remote_ssrc_stats);
stats_read.senders.push_back(video_sender_info);
EXPECT_CALL(session_, video_channel()).WillRepeatedly(Return(&video_channel));
EXPECT_CALL(session_, voice_channel()).WillRepeatedly(ReturnNull());
EXPECT_CALL(*media_channel, GetStats(_))
.WillRepeatedly(DoAll(SetArgPointee<0>(stats_read),
Return(true)));
stats.UpdateStats(PeerConnectionInterface::kStatsOutputLevelStandard);
StatsReports reports;
stats.GetStats(NULL, &reports);
const StatsReport* remote_report = FindNthReportByType(reports,
StatsReport::kStatsReportTypeRemoteSsrc, 1);
EXPECT_FALSE(remote_report == NULL);
EXPECT_EQ(12345.678, remote_report->timestamp());
}
// This test verifies that the empty track report exists in the returned stats
// when StatsCollector::UpdateStats is called with ssrc stats.
TEST_F(StatsCollectorTest, ReportsFromRemoteTrack) {
StatsCollectorForTest stats(&pc_);
EXPECT_CALL(session_, GetLocalCertificate(_, _))
.WillRepeatedly(Return(false));
EXPECT_CALL(session_, GetRemoteSSLCertificate(_, _))
.WillRepeatedly(Return(false));
const char kVideoChannelName[] = "video";
InitSessionStats(kVideoChannelName);
EXPECT_CALL(session_, GetTransportStats(_))
.WillRepeatedly(DoAll(SetArgPointee<0>(session_stats_),
Return(true)));
MockVideoMediaChannel* media_channel = new MockVideoMediaChannel();
cricket::VideoChannel video_channel(rtc::Thread::Current(), media_channel,
nullptr, kVideoChannelName, false);
AddIncomingVideoTrackStats();
stats.AddStream(stream_);
// Constructs an ssrc stats update.
cricket::VideoReceiverInfo video_receiver_info;
cricket::VideoMediaInfo stats_read;
const int64_t kNumOfPacketsConcealed = 54321;
// Construct a stats value to read.
video_receiver_info.add_ssrc(1234);
video_receiver_info.packets_concealed = kNumOfPacketsConcealed;
stats_read.receivers.push_back(video_receiver_info);
EXPECT_CALL(session_, video_channel()).WillRepeatedly(Return(&video_channel));
EXPECT_CALL(session_, voice_channel()).WillRepeatedly(ReturnNull());
EXPECT_CALL(*media_channel, GetStats(_))
.WillOnce(DoAll(SetArgPointee<0>(stats_read),
Return(true)));
stats.UpdateStats(PeerConnectionInterface::kStatsOutputLevelStandard);
StatsReports reports;
stats.GetStats(NULL, &reports);
// |reports| should contain at least one session report, one track report,
// and one ssrc report.
EXPECT_LE(static_cast<size_t>(3), reports.size());
const StatsReport* track_report = FindNthReportByType(
reports, StatsReport::kStatsReportTypeTrack, 1);
EXPECT_TRUE(track_report);
EXPECT_EQ(stats.GetTimeNow(), track_report->timestamp());
std::string ssrc_id = ExtractSsrcStatsValue(
reports, StatsReport::kStatsValueNameSsrc);
EXPECT_EQ(rtc::ToString<uint32_t>(kSsrcOfTrack), ssrc_id);
std::string track_id = ExtractSsrcStatsValue(
reports, StatsReport::kStatsValueNameTrackId);
EXPECT_EQ(kRemoteTrackId, track_id);
}
// This test verifies the Ice Candidate report should contain the correct
// information from local/remote candidates.
TEST_F(StatsCollectorTest, IceCandidateReport) {
StatsCollectorForTest stats(&pc_);
StatsReports reports; // returned values.
const int local_port = 2000;
const char local_ip[] = "192.168.0.1";
const int remote_port = 2001;
const char remote_ip[] = "192.168.0.2";
rtc::SocketAddress local_address(local_ip, local_port);
rtc::SocketAddress remote_address(remote_ip, remote_port);
rtc::AdapterType network_type = rtc::ADAPTER_TYPE_ETHERNET;
uint32_t priority = 1000;
cricket::Candidate c;
ASSERT(c.id().length() > 0);
c.set_type(cricket::LOCAL_PORT_TYPE);
c.set_protocol(cricket::UDP_PROTOCOL_NAME);
c.set_address(local_address);
c.set_priority(priority);
c.set_network_type(network_type);
std::string report_id = AddCandidateReport(&stats, c, true)->id()->ToString();
EXPECT_EQ("Cand-" + c.id(), report_id);
c = cricket::Candidate();
ASSERT(c.id().length() > 0);
c.set_type(cricket::PRFLX_PORT_TYPE);
c.set_protocol(cricket::UDP_PROTOCOL_NAME);
c.set_address(remote_address);
c.set_priority(priority);
c.set_network_type(network_type);
report_id = AddCandidateReport(&stats, c, false)->id()->ToString();
EXPECT_EQ("Cand-" + c.id(), report_id);
stats.GetStats(NULL, &reports);
// Verify the local candidate report is populated correctly.
EXPECT_EQ(
local_ip,
ExtractStatsValue(StatsReport::kStatsReportTypeIceLocalCandidate, reports,
StatsReport::kStatsValueNameCandidateIPAddress));
EXPECT_EQ(
rtc::ToString<int>(local_port),
ExtractStatsValue(StatsReport::kStatsReportTypeIceLocalCandidate, reports,
StatsReport::kStatsValueNameCandidatePortNumber));
EXPECT_EQ(
cricket::UDP_PROTOCOL_NAME,
ExtractStatsValue(StatsReport::kStatsReportTypeIceLocalCandidate, reports,
StatsReport::kStatsValueNameCandidateTransportType));
EXPECT_EQ(
rtc::ToString<int>(priority),
ExtractStatsValue(StatsReport::kStatsReportTypeIceLocalCandidate, reports,
StatsReport::kStatsValueNameCandidatePriority));
EXPECT_EQ(
IceCandidateTypeToStatsType(cricket::LOCAL_PORT_TYPE),
ExtractStatsValue(StatsReport::kStatsReportTypeIceLocalCandidate, reports,
StatsReport::kStatsValueNameCandidateType));
EXPECT_EQ(
AdapterTypeToStatsType(network_type),
ExtractStatsValue(StatsReport::kStatsReportTypeIceLocalCandidate, reports,
StatsReport::kStatsValueNameCandidateNetworkType));
// Verify the remote candidate report is populated correctly.
EXPECT_EQ(remote_ip,
ExtractStatsValue(StatsReport::kStatsReportTypeIceRemoteCandidate,
reports,
StatsReport::kStatsValueNameCandidateIPAddress));
EXPECT_EQ(rtc::ToString<int>(remote_port),
ExtractStatsValue(StatsReport::kStatsReportTypeIceRemoteCandidate,
reports,
StatsReport::kStatsValueNameCandidatePortNumber));
EXPECT_EQ(cricket::UDP_PROTOCOL_NAME,
ExtractStatsValue(
StatsReport::kStatsReportTypeIceRemoteCandidate, reports,
StatsReport::kStatsValueNameCandidateTransportType));
EXPECT_EQ(rtc::ToString<int>(priority),
ExtractStatsValue(StatsReport::kStatsReportTypeIceRemoteCandidate,
reports,
StatsReport::kStatsValueNameCandidatePriority));
EXPECT_EQ(
IceCandidateTypeToStatsType(cricket::PRFLX_PORT_TYPE),
ExtractStatsValue(StatsReport::kStatsReportTypeIceRemoteCandidate,
reports, StatsReport::kStatsValueNameCandidateType));
EXPECT_EQ(kNotFound,
ExtractStatsValue(
StatsReport::kStatsReportTypeIceRemoteCandidate, reports,
StatsReport::kStatsValueNameCandidateNetworkType));
}
// This test verifies that all chained certificates are correctly
// reported
TEST_F(StatsCollectorTest, ChainedCertificateReportsCreated) {
// Build local certificate chain.
std::vector<std::string> local_ders(5);
local_ders[0] = "These";
local_ders[1] = "are";
local_ders[2] = "some";
local_ders[3] = "der";
local_ders[4] = "values";
rtc::FakeSSLCertificate local_cert(DersToPems(local_ders));
// Build remote certificate chain
std::vector<std::string> remote_ders(4);
remote_ders[0] = "A";
remote_ders[1] = "non-";
remote_ders[2] = "intersecting";
remote_ders[3] = "set";
rtc::FakeSSLCertificate remote_cert(DersToPems(remote_ders));
TestCertificateReports(local_cert, local_ders, remote_cert, remote_ders);
}
// This test verifies that all certificates without chains are correctly
// reported.
TEST_F(StatsCollectorTest, ChainlessCertificateReportsCreated) {
// Build local certificate.
std::string local_der = "This is the local der.";
rtc::FakeSSLCertificate local_cert(DerToPem(local_der));
// Build remote certificate.
std::string remote_der = "This is somebody else's der.";
rtc::FakeSSLCertificate remote_cert(DerToPem(remote_der));
TestCertificateReports(local_cert, std::vector<std::string>(1, local_der),
remote_cert, std::vector<std::string>(1, remote_der));
}
// This test verifies that the stats are generated correctly when no
// transport is present.
TEST_F(StatsCollectorTest, NoTransport) {
StatsCollectorForTest stats(&pc_);
EXPECT_CALL(session_, GetLocalCertificate(_, _))
.WillRepeatedly(Return(false));
EXPECT_CALL(session_, GetRemoteSSLCertificate(_, _))
.WillRepeatedly(Return(false));
StatsReports reports; // returned values.
// Fake stats to process.
cricket::TransportChannelStats channel_stats;
channel_stats.component = 1;
cricket::TransportStats transport_stats;
transport_stats.transport_name = "audio";
transport_stats.channel_stats.push_back(channel_stats);
SessionStats session_stats;
session_stats.transport_stats[transport_stats.transport_name] =
transport_stats;
// Configure MockWebRtcSession
EXPECT_CALL(session_, GetTransportStats(_))
.WillOnce(DoAll(SetArgPointee<0>(session_stats),
Return(true)));
stats.UpdateStats(PeerConnectionInterface::kStatsOutputLevelStandard);
stats.GetStats(NULL, &reports);
// Check that the local certificate is absent.
std::string local_certificate_id = ExtractStatsValue(
StatsReport::kStatsReportTypeComponent,
reports,
StatsReport::kStatsValueNameLocalCertificateId);
ASSERT_EQ(kNotFound, local_certificate_id);
// Check that the remote certificate is absent.
std::string remote_certificate_id = ExtractStatsValue(
StatsReport::kStatsReportTypeComponent,
reports,
StatsReport::kStatsValueNameRemoteCertificateId);
ASSERT_EQ(kNotFound, remote_certificate_id);
// Check that the negotiated ciphers are absent.
std::string dtls_cipher_suite =
ExtractStatsValue(StatsReport::kStatsReportTypeComponent, reports,
StatsReport::kStatsValueNameDtlsCipher);
ASSERT_EQ(kNotFound, dtls_cipher_suite);
std::string srtp_crypto_suite =
ExtractStatsValue(StatsReport::kStatsReportTypeComponent, reports,
StatsReport::kStatsValueNameSrtpCipher);
ASSERT_EQ(kNotFound, srtp_crypto_suite);
}
// This test verifies that the stats are generated correctly when the transport
// does not have any certificates.
TEST_F(StatsCollectorTest, NoCertificates) {
StatsCollectorForTest stats(&pc_);
EXPECT_CALL(session_, GetLocalCertificate(_, _))
.WillRepeatedly(Return(false));
EXPECT_CALL(session_, GetRemoteSSLCertificate(_, _))
.WillRepeatedly(Return(false));
StatsReports reports; // returned values.
// Fake stats to process.
cricket::TransportChannelStats channel_stats;
channel_stats.component = 1;
cricket::TransportStats transport_stats;
transport_stats.transport_name = "audio";
transport_stats.channel_stats.push_back(channel_stats);
SessionStats session_stats;
session_stats.transport_stats[transport_stats.transport_name] =
transport_stats;
// Fake transport object.
rtc::scoped_ptr<cricket::FakeTransport> transport(
new cricket::FakeTransport(transport_stats.transport_name));
// Configure MockWebRtcSession
EXPECT_CALL(session_, GetTransportStats(_))
.WillOnce(DoAll(SetArgPointee<0>(session_stats),
Return(true)));
stats.UpdateStats(PeerConnectionInterface::kStatsOutputLevelStandard);
stats.GetStats(NULL, &reports);
// Check that the local certificate is absent.
std::string local_certificate_id = ExtractStatsValue(
StatsReport::kStatsReportTypeComponent,
reports,
StatsReport::kStatsValueNameLocalCertificateId);
ASSERT_EQ(kNotFound, local_certificate_id);
// Check that the remote certificate is absent.
std::string remote_certificate_id = ExtractStatsValue(
StatsReport::kStatsReportTypeComponent,
reports,
StatsReport::kStatsValueNameRemoteCertificateId);
ASSERT_EQ(kNotFound, remote_certificate_id);
}
// This test verifies that a remote certificate with an unsupported digest
// algorithm is correctly ignored.
TEST_F(StatsCollectorTest, UnsupportedDigestIgnored) {
// Build a local certificate.
std::string local_der = "This is the local der.";
rtc::FakeSSLCertificate local_cert(DerToPem(local_der));
// Build a remote certificate with an unsupported digest algorithm.
std::string remote_der = "This is somebody else's der.";
rtc::FakeSSLCertificate remote_cert(DerToPem(remote_der));
remote_cert.set_digest_algorithm("foobar");
TestCertificateReports(local_cert, std::vector<std::string>(1, local_der),
remote_cert, std::vector<std::string>());
}
// This test verifies that a local stats object can get statistics via
// AudioTrackInterface::GetStats() method.
TEST_F(StatsCollectorTest, GetStatsFromLocalAudioTrack) {
StatsCollectorForTest stats(&pc_);
EXPECT_CALL(session_, GetLocalCertificate(_, _))
.WillRepeatedly(Return(false));
EXPECT_CALL(session_, GetRemoteSSLCertificate(_, _))
.WillRepeatedly(Return(false));
MockVoiceMediaChannel* media_channel = new MockVoiceMediaChannel();
// The transport_name known by the voice channel.
const std::string kVcName("vcname");
cricket::VoiceChannel voice_channel(rtc::Thread::Current(), media_engine_,
media_channel, nullptr, kVcName, false);
AddOutgoingAudioTrackStats();
stats.AddStream(stream_);
stats.AddLocalAudioTrack(audio_track_, kSsrcOfTrack);
cricket::VoiceSenderInfo voice_sender_info;
InitVoiceSenderInfo(&voice_sender_info);
cricket::VoiceMediaInfo stats_read;
StatsReports reports; // returned values.
SetupAndVerifyAudioTrackStats(
audio_track_.get(), stream_.get(), &stats, &voice_channel, kVcName,
media_channel, &voice_sender_info, NULL, &stats_read, &reports);
// Verify that there is no remote report for the local audio track because
// we did not set it up.
const StatsReport* remote_report = FindNthReportByType(reports,
StatsReport::kStatsReportTypeRemoteSsrc, 1);
EXPECT_TRUE(remote_report == NULL);
}
// This test verifies that audio receive streams populate stats reports
// correctly.
TEST_F(StatsCollectorTest, GetStatsFromRemoteStream) {
StatsCollectorForTest stats(&pc_);
EXPECT_CALL(session_, GetLocalCertificate(_, _))
.WillRepeatedly(Return(false));
EXPECT_CALL(session_, GetRemoteSSLCertificate(_, _))
.WillRepeatedly(Return(false));
MockVoiceMediaChannel* media_channel = new MockVoiceMediaChannel();
// The transport_name known by the voice channel.
const std::string kVcName("vcname");
cricket::VoiceChannel voice_channel(rtc::Thread::Current(), media_engine_,
media_channel, nullptr, kVcName, false);
AddIncomingAudioTrackStats();
stats.AddStream(stream_);
cricket::VoiceReceiverInfo voice_receiver_info;
InitVoiceReceiverInfo(&voice_receiver_info);
voice_receiver_info.codec_name = "fake_codec";
cricket::VoiceMediaInfo stats_read;
StatsReports reports; // returned values.
SetupAndVerifyAudioTrackStats(
audio_track_.get(), stream_.get(), &stats, &voice_channel, kVcName,
media_channel, NULL, &voice_receiver_info, &stats_read, &reports);
}
// This test verifies that a local stats object won't update its statistics
// after a RemoveLocalAudioTrack() call.
TEST_F(StatsCollectorTest, GetStatsAfterRemoveAudioStream) {
StatsCollectorForTest stats(&pc_);
EXPECT_CALL(session_, GetLocalCertificate(_, _))
.WillRepeatedly(Return(false));
EXPECT_CALL(session_, GetRemoteSSLCertificate(_, _))
.WillRepeatedly(Return(false));
MockVoiceMediaChannel* media_channel = new MockVoiceMediaChannel();
// The transport_name known by the voice channel.
const std::string kVcName("vcname");
cricket::VoiceChannel voice_channel(rtc::Thread::Current(), media_engine_,
media_channel, nullptr, kVcName, false);
AddOutgoingAudioTrackStats();
stats.AddStream(stream_);
stats.AddLocalAudioTrack(audio_track_.get(), kSsrcOfTrack);
// Instruct the session to return stats containing the transport channel.
InitSessionStats(kVcName);
EXPECT_CALL(session_, GetTransportStats(_))
.WillRepeatedly(DoAll(SetArgPointee<0>(session_stats_),
Return(true)));
stats.RemoveLocalAudioTrack(audio_track_.get(), kSsrcOfTrack);
cricket::VoiceSenderInfo voice_sender_info;
InitVoiceSenderInfo(&voice_sender_info);
// Constructs an ssrc stats update.
cricket::VoiceMediaInfo stats_read;
stats_read.senders.push_back(voice_sender_info);
EXPECT_CALL(session_, voice_channel()).WillRepeatedly(Return(&voice_channel));
EXPECT_CALL(session_, video_channel()).WillRepeatedly(ReturnNull());
EXPECT_CALL(*media_channel, GetStats(_))
.WillRepeatedly(DoAll(SetArgPointee<0>(stats_read),
Return(true)));
StatsReports reports; // returned values.
stats.UpdateStats(PeerConnectionInterface::kStatsOutputLevelStandard);
stats.GetStats(NULL, &reports);
// The report will exist since we don't remove them in RemoveStream().
const StatsReport* report = FindNthReportByType(
reports, StatsReport::kStatsReportTypeSsrc, 1);
EXPECT_FALSE(report == NULL);
EXPECT_EQ(stats.GetTimeNow(), report->timestamp());
std::string track_id = ExtractSsrcStatsValue(
reports, StatsReport::kStatsValueNameTrackId);
EXPECT_EQ(kLocalTrackId, track_id);
std::string ssrc_id = ExtractSsrcStatsValue(
reports, StatsReport::kStatsValueNameSsrc);
EXPECT_EQ(rtc::ToString<uint32_t>(kSsrcOfTrack), ssrc_id);
// Verifies the values in the track report, no value will be changed by the
// AudioTrackInterface::GetSignalValue() and
// AudioProcessorInterface::AudioProcessorStats::GetStats();
VerifyVoiceSenderInfoReport(report, voice_sender_info);
}
// This test verifies that when ongoing and incoming audio tracks are using
// the same ssrc, they populate stats reports correctly.
TEST_F(StatsCollectorTest, LocalAndRemoteTracksWithSameSsrc) {
StatsCollectorForTest stats(&pc_);
EXPECT_CALL(session_, GetLocalCertificate(_, _))
.WillRepeatedly(Return(false));
EXPECT_CALL(session_, GetRemoteSSLCertificate(_, _))
.WillRepeatedly(Return(false));
MockVoiceMediaChannel* media_channel = new MockVoiceMediaChannel();
// The transport_name known by the voice channel.
const std::string kVcName("vcname");
cricket::VoiceChannel voice_channel(rtc::Thread::Current(), media_engine_,
media_channel, nullptr, kVcName, false);
// Create a local stream with a local audio track and adds it to the stats.
AddOutgoingAudioTrackStats();
stats.AddStream(stream_);
stats.AddLocalAudioTrack(audio_track_.get(), kSsrcOfTrack);
// Create a remote stream with a remote audio track and adds it to the stats.
rtc::scoped_refptr<webrtc::MediaStream> remote_stream(
webrtc::MediaStream::Create("remotestreamlabel"));
rtc::scoped_refptr<FakeAudioTrack> remote_track(
new rtc::RefCountedObject<FakeAudioTrack>(kRemoteTrackId));
EXPECT_CALL(session_, GetRemoteTrackIdBySsrc(kSsrcOfTrack, _))
.WillOnce(DoAll(SetArgPointee<1>(kRemoteTrackId), Return(true)));
remote_stream->AddTrack(remote_track);
stats.AddStream(remote_stream);
// Instruct the session to return stats containing the transport channel.
InitSessionStats(kVcName);
EXPECT_CALL(session_, GetTransportStats(_))
.WillRepeatedly(DoAll(SetArgPointee<0>(session_stats_),
Return(true)));
cricket::VoiceSenderInfo voice_sender_info;
InitVoiceSenderInfo(&voice_sender_info);
// Some of the contents in |voice_sender_info| needs to be updated from the
// |audio_track_|.
UpdateVoiceSenderInfoFromAudioTrack(audio_track_.get(), &voice_sender_info);
cricket::VoiceReceiverInfo voice_receiver_info;
InitVoiceReceiverInfo(&voice_receiver_info);
// Constructs an ssrc stats update.
cricket::VoiceMediaInfo stats_read;
stats_read.senders.push_back(voice_sender_info);
stats_read.receivers.push_back(voice_receiver_info);
EXPECT_CALL(session_, voice_channel()).WillRepeatedly(Return(&voice_channel));
EXPECT_CALL(session_, video_channel()).WillRepeatedly(ReturnNull());
EXPECT_CALL(*media_channel, GetStats(_))
.WillRepeatedly(DoAll(SetArgPointee<0>(stats_read),
Return(true)));
StatsReports reports; // returned values.
stats.UpdateStats(PeerConnectionInterface::kStatsOutputLevelStandard);
// Get stats for the local track.
stats.GetStats(audio_track_.get(), &reports);
const StatsReport* track_report = FindNthReportByType(
reports, StatsReport::kStatsReportTypeSsrc, 1);
EXPECT_TRUE(track_report);
EXPECT_EQ(stats.GetTimeNow(), track_report->timestamp());
std::string track_id = ExtractSsrcStatsValue(
reports, StatsReport::kStatsValueNameTrackId);
EXPECT_EQ(kLocalTrackId, track_id);
VerifyVoiceSenderInfoReport(track_report, voice_sender_info);
// Get stats for the remote track.
reports.clear();
stats.GetStats(remote_track.get(), &reports);
track_report = FindNthReportByType(reports,
StatsReport::kStatsReportTypeSsrc, 1);
EXPECT_TRUE(track_report);
EXPECT_EQ(stats.GetTimeNow(), track_report->timestamp());
track_id = ExtractSsrcStatsValue(reports,
StatsReport::kStatsValueNameTrackId);
EXPECT_EQ(kRemoteTrackId, track_id);
VerifyVoiceReceiverInfoReport(track_report, voice_receiver_info);
}
// This test verifies that when two outgoing audio tracks are using the same
// ssrc at different times, they populate stats reports correctly.
// TODO(xians): Figure out if it is possible to encapsulate the setup and
// avoid duplication of code in test cases.
TEST_F(StatsCollectorTest, TwoLocalTracksWithSameSsrc) {
StatsCollectorForTest stats(&pc_);
EXPECT_CALL(session_, GetLocalCertificate(_, _))
.WillRepeatedly(Return(false));
EXPECT_CALL(session_, GetRemoteSSLCertificate(_, _))
.WillRepeatedly(Return(false));
MockVoiceMediaChannel* media_channel = new MockVoiceMediaChannel();
// The transport_name known by the voice channel.
const std::string kVcName("vcname");
cricket::VoiceChannel voice_channel(rtc::Thread::Current(), media_engine_,
media_channel, nullptr, kVcName, false);
// Create a local stream with a local audio track and adds it to the stats.
AddOutgoingAudioTrackStats();
stats.AddStream(stream_);
stats.AddLocalAudioTrack(audio_track_, kSsrcOfTrack);
cricket::VoiceSenderInfo voice_sender_info;
voice_sender_info.add_ssrc(kSsrcOfTrack);
cricket::VoiceMediaInfo stats_read;
StatsReports reports; // returned values.
SetupAndVerifyAudioTrackStats(
audio_track_.get(), stream_.get(), &stats, &voice_channel, kVcName,
media_channel, &voice_sender_info, NULL, &stats_read, &reports);
// Remove the previous audio track from the stream.
stream_->RemoveTrack(audio_track_.get());
stats.RemoveLocalAudioTrack(audio_track_.get(), kSsrcOfTrack);
// Create a new audio track and adds it to the stream and stats.
static const std::string kNewTrackId = "new_track_id";
rtc::scoped_refptr<FakeAudioTrack> new_audio_track(
new rtc::RefCountedObject<FakeAudioTrack>(kNewTrackId));
EXPECT_CALL(session_, GetLocalTrackIdBySsrc(kSsrcOfTrack, _))
.WillOnce(DoAll(SetArgPointee<1>(kNewTrackId), Return(true)));
stream_->AddTrack(new_audio_track);
stats.AddLocalAudioTrack(new_audio_track, kSsrcOfTrack);
stats.ClearUpdateStatsCacheForTest();
cricket::VoiceSenderInfo new_voice_sender_info;
InitVoiceSenderInfo(&new_voice_sender_info);
cricket::VoiceMediaInfo new_stats_read;
reports.clear();
SetupAndVerifyAudioTrackStats(
new_audio_track.get(), stream_.get(), &stats, &voice_channel, kVcName,
media_channel, &new_voice_sender_info, NULL, &new_stats_read, &reports);
}
} // namespace webrtc