|  | /* | 
|  | *  Copyright 2014 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 <stdio.h> | 
|  |  | 
|  | #include <algorithm> | 
|  | #include <memory> | 
|  | #include <utility> | 
|  |  | 
|  | #include "pc/statscollector.h" | 
|  |  | 
|  | #include "api/mediastreaminterface.h" | 
|  | #include "media/base/fakemediaengine.h" | 
|  | #include "media/base/test/mock_mediachannel.h" | 
|  | #include "pc/channelmanager.h" | 
|  | #include "pc/mediastream.h" | 
|  | #include "pc/mediastreamtrack.h" | 
|  | #include "pc/peerconnection.h" | 
|  | #include "pc/peerconnectionfactory.h" | 
|  | #include "pc/test/fakedatachannelprovider.h" | 
|  | #include "pc/test/fakevideotracksource.h" | 
|  | #include "pc/test/mock_peerconnection.h" | 
|  | #include "pc/videotrack.h" | 
|  | #include "rtc_base/base64.h" | 
|  | #include "rtc_base/fakesslidentity.h" | 
|  | #include "rtc_base/gunit.h" | 
|  | #include "rtc_base/stringencode.h" | 
|  | #include "test/gmock.h" | 
|  | #include "test/gtest.h" | 
|  |  | 
|  | using testing::_; | 
|  | using testing::DoAll; | 
|  | using testing::Field; | 
|  | using testing::Invoke; | 
|  | using testing::Return; | 
|  | using testing::ReturnNull; | 
|  | using testing::ReturnRef; | 
|  | using testing::SetArgPointee; | 
|  | using webrtc::PeerConnectionInterface; | 
|  | using webrtc::StatsReport; | 
|  | using webrtc::StatsReports; | 
|  |  | 
|  | namespace { | 
|  | const bool kDefaultRtcpMuxRequired = true; | 
|  | const bool kDefaultSrtpRequired = true; | 
|  | } | 
|  |  | 
|  | namespace cricket { | 
|  |  | 
|  | class ChannelManager; | 
|  |  | 
|  | }  // namespace cricket | 
|  |  | 
|  | namespace webrtc { | 
|  |  | 
|  | namespace internal { | 
|  | // This value comes from openssl/tls1.h | 
|  | static const int TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA = 0xC014; | 
|  | }  // namespace internal | 
|  |  | 
|  | // 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 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->echo_delay_std_ms = 6; | 
|  | } | 
|  |  | 
|  | AudioProcessorInterface::AudioProcessorStatistics GetStats( | 
|  | bool has_recv_streams) override { | 
|  | AudioProcessorStatistics stats; | 
|  | stats.typing_noise_detected = true; | 
|  | if (has_recv_streams) { | 
|  | stats.apm_statistics.echo_return_loss = 2.0; | 
|  | stats.apm_statistics.echo_return_loss_enhancement = 3.0; | 
|  | stats.apm_statistics.delay_median_ms = 4; | 
|  | stats.apm_statistics.delay_standard_deviation_ms = 5; | 
|  | } | 
|  | return stats; | 
|  | } | 
|  | }; | 
|  |  | 
|  | 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_; | 
|  | }; | 
|  |  | 
|  | // This fake audio processor is used to verify that the undesired initial values | 
|  | // (-1) will be filtered out. | 
|  | class FakeAudioProcessorWithInitValue : public webrtc::AudioProcessorInterface { | 
|  | public: | 
|  | FakeAudioProcessorWithInitValue() {} | 
|  | ~FakeAudioProcessorWithInitValue() {} | 
|  |  | 
|  | private: | 
|  | void GetStats(AudioProcessorInterface::AudioProcessorStats* stats) override { | 
|  | stats->typing_noise_detected = false; | 
|  | stats->echo_return_loss = -100; | 
|  | stats->echo_return_loss_enhancement = -100; | 
|  | stats->echo_delay_median_ms = -1; | 
|  | stats->echo_delay_std_ms = -1; | 
|  | } | 
|  |  | 
|  | AudioProcessorInterface::AudioProcessorStatistics GetStats( | 
|  | bool /*has_recv_streams*/) override { | 
|  | AudioProcessorStatistics stats; | 
|  | stats.typing_noise_detected = false; | 
|  | return stats; | 
|  | } | 
|  | }; | 
|  |  | 
|  | class FakeAudioTrackWithInitValue | 
|  | : public webrtc::MediaStreamTrack<webrtc::AudioTrackInterface> { | 
|  | public: | 
|  | explicit FakeAudioTrackWithInitValue(const std::string& id) | 
|  | : webrtc::MediaStreamTrack<webrtc::AudioTrackInterface>(id), | 
|  | processor_( | 
|  | new rtc::RefCountedObject<FakeAudioProcessorWithInitValue>()) {} | 
|  | 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<FakeAudioProcessorWithInitValue> 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(const StatsReports& reports, | 
|  | StatsReport::StatsValueName name) { | 
|  | return ExtractStatsValue(StatsReport::kStatsReportTypeSsrc, reports, name); | 
|  | } | 
|  |  | 
|  | std::string ExtractBweStatsValue(const 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::kStatsValueNameSecondaryDiscardedRate, | 
|  | &value_in_report)); | 
|  | EXPECT_EQ(rtc::ToString<float>(info.secondary_discarded_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::kStatsValueNameDecodingMutedOutput, | 
|  | &value_in_report)); | 
|  | EXPECT_EQ(rtc::ToString<int>(info.decoding_muted_output), 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); | 
|  | if (sinfo.apm_statistics.delay_median_ms) { | 
|  | EXPECT_TRUE(GetValue(report, StatsReport::kStatsValueNameEchoDelayMedian, | 
|  | &value_in_report)); | 
|  | EXPECT_EQ(rtc::ToString<int>(*sinfo.apm_statistics.delay_median_ms), | 
|  | value_in_report); | 
|  | } else { | 
|  | EXPECT_FALSE(GetValue(report, StatsReport::kStatsValueNameEchoDelayMedian, | 
|  | &value_in_report)); | 
|  | } | 
|  | if (sinfo.apm_statistics.delay_standard_deviation_ms) { | 
|  | EXPECT_TRUE(GetValue(report, StatsReport::kStatsValueNameEchoDelayStdDev, | 
|  | &value_in_report)); | 
|  | EXPECT_EQ( | 
|  | rtc::ToString<int>(*sinfo.apm_statistics.delay_standard_deviation_ms), | 
|  | value_in_report); | 
|  | } else { | 
|  | EXPECT_FALSE(GetValue(report, StatsReport::kStatsValueNameEchoDelayStdDev, | 
|  | &value_in_report)); | 
|  | } | 
|  | if (sinfo.apm_statistics.echo_return_loss) { | 
|  | EXPECT_TRUE(GetValue(report, StatsReport::kStatsValueNameEchoReturnLoss, | 
|  | &value_in_report)); | 
|  | EXPECT_EQ(rtc::ToString<int>(*sinfo.apm_statistics.echo_return_loss), | 
|  | value_in_report); | 
|  | } else { | 
|  | EXPECT_FALSE(GetValue(report, StatsReport::kStatsValueNameEchoReturnLoss, | 
|  | &value_in_report)); | 
|  | } | 
|  | if (sinfo.apm_statistics.echo_return_loss_enhancement) { | 
|  | EXPECT_TRUE(GetValue(report, | 
|  | StatsReport::kStatsValueNameEchoReturnLossEnhancement, | 
|  | &value_in_report)); | 
|  | EXPECT_EQ( | 
|  | rtc::ToString<int>(*sinfo.apm_statistics.echo_return_loss_enhancement), | 
|  | value_in_report); | 
|  | } else { | 
|  | EXPECT_FALSE(GetValue(report, | 
|  | StatsReport::kStatsValueNameEchoReturnLossEnhancement, | 
|  | &value_in_report)); | 
|  | } | 
|  | if (sinfo.apm_statistics.residual_echo_likelihood) { | 
|  | EXPECT_TRUE(GetValue(report, | 
|  | StatsReport::kStatsValueNameResidualEchoLikelihood, | 
|  | &value_in_report)); | 
|  | EXPECT_EQ( | 
|  | rtc::ToString<float>(*sinfo.apm_statistics.residual_echo_likelihood), | 
|  | value_in_report); | 
|  | } else { | 
|  | EXPECT_FALSE(GetValue(report, | 
|  | StatsReport::kStatsValueNameResidualEchoLikelihood, | 
|  | &value_in_report)); | 
|  | } | 
|  | if (sinfo.apm_statistics.residual_echo_likelihood_recent_max) { | 
|  | EXPECT_TRUE(GetValue( | 
|  | report, StatsReport::kStatsValueNameResidualEchoLikelihoodRecentMax, | 
|  | &value_in_report)); | 
|  | EXPECT_EQ(rtc::ToString<float>( | 
|  | *sinfo.apm_statistics.residual_echo_likelihood_recent_max), | 
|  | value_in_report); | 
|  | } else { | 
|  | EXPECT_FALSE(GetValue( | 
|  | report, StatsReport::kStatsValueNameResidualEchoLikelihoodRecentMax, | 
|  | &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); | 
|  | EXPECT_TRUE(GetValue(report, | 
|  | StatsReport::kStatsValueNameAnaBitrateActionCounter, | 
|  | &value_in_report)); | 
|  | ASSERT_TRUE(sinfo.ana_statistics.bitrate_action_counter); | 
|  | EXPECT_EQ( | 
|  | rtc::ToString<uint32_t>(*sinfo.ana_statistics.bitrate_action_counter), | 
|  | value_in_report); | 
|  | EXPECT_TRUE(GetValue(report, | 
|  | StatsReport::kStatsValueNameAnaChannelActionCounter, | 
|  | &value_in_report)); | 
|  | ASSERT_TRUE(sinfo.ana_statistics.channel_action_counter); | 
|  | EXPECT_EQ( | 
|  | rtc::ToString<uint32_t>(*sinfo.ana_statistics.channel_action_counter), | 
|  | value_in_report); | 
|  | EXPECT_TRUE(GetValue(report, StatsReport::kStatsValueNameAnaDtxActionCounter, | 
|  | &value_in_report)); | 
|  | ASSERT_TRUE(sinfo.ana_statistics.dtx_action_counter); | 
|  | EXPECT_EQ(rtc::ToString<uint32_t>(*sinfo.ana_statistics.dtx_action_counter), | 
|  | value_in_report); | 
|  | EXPECT_TRUE(GetValue(report, StatsReport::kStatsValueNameAnaFecActionCounter, | 
|  | &value_in_report)); | 
|  | ASSERT_TRUE(sinfo.ana_statistics.fec_action_counter); | 
|  | EXPECT_EQ(rtc::ToString<uint32_t>(*sinfo.ana_statistics.fec_action_counter), | 
|  | value_in_report); | 
|  | EXPECT_TRUE(GetValue( | 
|  | report, StatsReport::kStatsValueNameAnaFrameLengthIncreaseCounter, | 
|  | &value_in_report)); | 
|  | ASSERT_TRUE(sinfo.ana_statistics.frame_length_increase_counter); | 
|  | EXPECT_EQ(rtc::ToString<uint32_t>( | 
|  | *sinfo.ana_statistics.frame_length_increase_counter), | 
|  | value_in_report); | 
|  | EXPECT_TRUE(GetValue( | 
|  | report, StatsReport::kStatsValueNameAnaFrameLengthDecreaseCounter, | 
|  | &value_in_report)); | 
|  | ASSERT_TRUE(sinfo.ana_statistics.frame_length_decrease_counter); | 
|  | EXPECT_EQ(rtc::ToString<uint32_t>( | 
|  | *sinfo.ana_statistics.frame_length_decrease_counter), | 
|  | value_in_report); | 
|  | EXPECT_TRUE(GetValue(report, | 
|  | StatsReport::kStatsValueNameAnaUplinkPacketLossFraction, | 
|  | &value_in_report)); | 
|  | ASSERT_TRUE(sinfo.ana_statistics.uplink_packet_loss_fraction); | 
|  | EXPECT_EQ( | 
|  | rtc::ToString<float>(*sinfo.ana_statistics.uplink_packet_loss_fraction), | 
|  | 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->typing_noise_detected = false; | 
|  | voice_sender_info->ana_statistics.bitrate_action_counter = 112; | 
|  | voice_sender_info->ana_statistics.channel_action_counter = 113; | 
|  | voice_sender_info->ana_statistics.dtx_action_counter = 114; | 
|  | voice_sender_info->ana_statistics.fec_action_counter = 115; | 
|  | voice_sender_info->ana_statistics.frame_length_increase_counter = 116; | 
|  | voice_sender_info->ana_statistics.frame_length_decrease_counter = 117; | 
|  | voice_sender_info->ana_statistics.uplink_packet_loss_fraction = 118.0; | 
|  | } | 
|  |  | 
|  | void UpdateVoiceSenderInfoFromAudioTrack( | 
|  | AudioTrackInterface* audio_track, | 
|  | cricket::VoiceSenderInfo* voice_sender_info, | 
|  | bool has_remote_tracks) { | 
|  | audio_track->GetSignalLevel(&voice_sender_info->audio_level); | 
|  | webrtc::AudioProcessorInterface::AudioProcessorStatistics | 
|  | audio_processor_stats = | 
|  | audio_track->GetAudioProcessor()->GetStats(has_remote_tracks); | 
|  | voice_sender_info->typing_noise_detected = | 
|  | audio_processor_stats.typing_noise_detected; | 
|  | voice_sender_info->apm_statistics = audio_processor_stats.apm_statistics; | 
|  | } | 
|  |  | 
|  | 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; | 
|  | voice_receiver_info->secondary_discarded_rate = 126; | 
|  | } | 
|  |  | 
|  | 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() | 
|  | : worker_thread_(rtc::Thread::Current()), | 
|  | network_thread_(rtc::Thread::Current()), | 
|  | media_engine_(new cricket::FakeMediaEngine()), | 
|  | pc_factory_(new FakePeerConnectionFactory( | 
|  | std::unique_ptr<cricket::MediaEngineInterface>(media_engine_))), | 
|  | pc_(pc_factory_) { | 
|  | // By default, we ignore session GetStats calls. | 
|  | EXPECT_CALL(pc_, GetSessionStats(_)).WillRepeatedly(ReturnNull()); | 
|  | // Add default returns for mock classes. | 
|  | EXPECT_CALL(pc_, video_channel()).WillRepeatedly(ReturnNull()); | 
|  | EXPECT_CALL(pc_, voice_channel()).WillRepeatedly(ReturnNull()); | 
|  | EXPECT_CALL(pc_, sctp_data_channels()) | 
|  | .WillRepeatedly(ReturnRef(data_channels_)); | 
|  | EXPECT_CALL(pc_, GetSenders()).WillRepeatedly(Return( | 
|  | std::vector<rtc::scoped_refptr<RtpSenderInterface>>())); | 
|  | EXPECT_CALL(pc_, GetReceivers()).WillRepeatedly(Return( | 
|  | std::vector<rtc::scoped_refptr<RtpReceiverInterface>>())); | 
|  | // Boring calls | 
|  | EXPECT_CALL(pc_, GetCallStats()).WillRepeatedly(Return(Call::Stats())); | 
|  | } | 
|  |  | 
|  | ~StatsCollectorTest() {} | 
|  |  | 
|  | // This creates a standard setup with a transport called "trspname" | 
|  | // having one transport channel | 
|  | // and the specified virtual connection name. | 
|  | void InitSessionStats(cricket::BaseChannel* channel) { | 
|  | 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; | 
|  | channel->set_transport_name_for_testing(kTransportName); | 
|  | } | 
|  |  | 
|  | 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, | 
|  | 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. | 
|  | EXPECT_TRUE((voice_sender_info == NULL) ^ (voice_receiver_info == NULL)); | 
|  |  | 
|  | // Instruct the session to return stats containing the transport channel. | 
|  | InitSessionStats(voice_channel); | 
|  | EXPECT_CALL(pc_, GetSessionStats(_)) | 
|  | .WillRepeatedly(Invoke([this](const ChannelNamePairs&) { | 
|  | return std::unique_ptr<SessionStats>( | 
|  | new SessionStats(session_stats_)); | 
|  | })); | 
|  |  | 
|  | // 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(pc_, voice_channel()).WillRepeatedly(Return(voice_channel)); | 
|  | EXPECT_CALL(pc_, 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); | 
|  |  | 
|  | std::string media_type = ExtractSsrcStatsValue(*reports, | 
|  | StatsReport::kStatsValueNameMediaType); | 
|  | EXPECT_EQ("audio", media_type); | 
|  |  | 
|  | // Verifies the values in the track report. | 
|  | if (voice_sender_info) { | 
|  | UpdateVoiceSenderInfoFromAudioTrack(audio_track, voice_sender_info, | 
|  | stats_read->receivers.size() > 0); | 
|  | 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); | 
|  | if (!track_report) | 
|  | return; | 
|  | 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, | 
|  | std::unique_ptr<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 = | 
|  | internal::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(std::unique_ptr<rtc::FakeSSLIdentity>( | 
|  | new rtc::FakeSSLIdentity(local_cert)))); | 
|  |  | 
|  | // Configure MockWebRtcSession | 
|  | EXPECT_CALL(pc_, GetLocalCertificate(transport_stats.transport_name, _)) | 
|  | .WillOnce(DoAll(SetArgPointee<1>(local_certificate), Return(true))); | 
|  | EXPECT_CALL(pc_, GetRemoteSSLCertificate_ReturnsRawPointer( | 
|  | transport_stats.transport_name)) | 
|  | .WillOnce(Return(remote_cert.release())); | 
|  | EXPECT_CALL(pc_, GetSessionStats(_)) | 
|  | .WillOnce(Invoke([&session_stats](const ChannelNamePairs&) { | 
|  | return std::unique_ptr<SessionStats>( | 
|  | new SessionStats(session_stats)); | 
|  | })); | 
|  |  | 
|  | 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( | 
|  | internal::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); | 
|  | } | 
|  |  | 
|  | webrtc::RtcEventLogNullImpl event_log_; | 
|  | rtc::Thread* const worker_thread_; | 
|  | rtc::Thread* const network_thread_; | 
|  | // |media_engine_| is actually owned by |pc_factory_|. | 
|  | cricket::FakeMediaEngine* media_engine_; | 
|  | rtc::scoped_refptr<FakePeerConnectionFactory> pc_factory_; | 
|  | MockPeerConnection pc_; | 
|  | FakeDataChannelProvider data_channel_provider_; | 
|  | SessionStats session_stats_; | 
|  | std::vector<rtc::scoped_refptr<DataChannel>> data_channels_; | 
|  | }; | 
|  |  | 
|  | class StatsCollectorTrackTest : public StatsCollectorTest, | 
|  | public ::testing::WithParamInterface<bool> { | 
|  | public: | 
|  | // Adds a outgoing video track with a given SSRC into the stats. | 
|  | // If GetParam() returns true, the track is also inserted into the local | 
|  | // stream, which is created if necessary. | 
|  | void AddOutgoingVideoTrackStats(StatsCollectorForTest* stats) { | 
|  | track_ = webrtc::VideoTrack::Create(kLocalTrackId, | 
|  | webrtc::FakeVideoTrackSource::Create(), | 
|  | rtc::Thread::Current()); | 
|  | if (GetParam()) { | 
|  | if (!stream_) | 
|  | stream_ = webrtc::MediaStream::Create("streamlabel"); | 
|  | stream_->AddTrack(track_); | 
|  | stats->AddStream(stream_); | 
|  | } else { | 
|  | stats->AddTrack(track_); | 
|  | } | 
|  | EXPECT_CALL(pc_, GetLocalTrackIdBySsrc(kSsrcOfTrack, _)) | 
|  | .WillRepeatedly(DoAll(SetArgPointee<1>(kLocalTrackId), Return(true))); | 
|  | } | 
|  |  | 
|  | // Adds a incoming video track with a given SSRC into the stats. | 
|  | void AddIncomingVideoTrackStats(StatsCollectorForTest* stats) { | 
|  | track_ = webrtc::VideoTrack::Create(kRemoteTrackId, | 
|  | webrtc::FakeVideoTrackSource::Create(), | 
|  | rtc::Thread::Current()); | 
|  | if (GetParam()) { | 
|  | stream_ = webrtc::MediaStream::Create("streamlabel"); | 
|  | stream_->AddTrack(track_); | 
|  | stats->AddStream(stream_); | 
|  | } else { | 
|  | stats->AddTrack(track_); | 
|  | } | 
|  | EXPECT_CALL(pc_, GetRemoteTrackIdBySsrc(kSsrcOfTrack, _)) | 
|  | .WillRepeatedly(DoAll(SetArgPointee<1>(kRemoteTrackId), Return(true))); | 
|  | } | 
|  |  | 
|  | // Adds a outgoing audio track with a given SSRC into the stats, | 
|  | // and register it into the stats object. | 
|  | // If GetParam() returns true, the track is also inserted into the local | 
|  | // stream, which is created if necessary. | 
|  | void AddOutgoingAudioTrackStats(StatsCollectorForTest* stats) { | 
|  | audio_track_ = new rtc::RefCountedObject<FakeAudioTrack>(kLocalTrackId); | 
|  | if (GetParam()) { | 
|  | if (!stream_) | 
|  | stream_ = webrtc::MediaStream::Create("streamlabel"); | 
|  | stream_->AddTrack(audio_track_); | 
|  | stats->AddStream(stream_); | 
|  | } else { | 
|  | stats->AddTrack(audio_track_); | 
|  | } | 
|  | EXPECT_CALL(pc_, GetLocalTrackIdBySsrc(kSsrcOfTrack, _)) | 
|  | .WillOnce(DoAll(SetArgPointee<1>(kLocalTrackId), Return(true))); | 
|  | } | 
|  |  | 
|  | // Adds a incoming audio track with a given SSRC into the stats. | 
|  | void AddIncomingAudioTrackStats(StatsCollectorForTest* stats) { | 
|  | audio_track_ = new rtc::RefCountedObject<FakeAudioTrack>(kRemoteTrackId); | 
|  | if (GetParam()) { | 
|  | if (stream_ == NULL) | 
|  | stream_ = webrtc::MediaStream::Create("streamlabel"); | 
|  | stream_->AddTrack(audio_track_); | 
|  | stats->AddStream(stream_); | 
|  | } else { | 
|  | stats->AddTrack(audio_track_); | 
|  | } | 
|  | EXPECT_CALL(pc_, GetRemoteTrackIdBySsrc(kSsrcOfTrack, _)) | 
|  | .WillOnce(DoAll(SetArgPointee<1>(kRemoteTrackId), Return(true))); | 
|  | } | 
|  |  | 
|  | rtc::scoped_refptr<webrtc::MediaStream> stream_; | 
|  | rtc::scoped_refptr<webrtc::VideoTrack> track_; | 
|  | rtc::scoped_refptr<FakeAudioTrack> audio_track_; | 
|  | }; | 
|  |  | 
|  | TEST_F(StatsCollectorTest, FilterOutNegativeDataChannelId) { | 
|  | const std::string label = "hacks"; | 
|  | // The data channel id is from the Config which is -1 initially. | 
|  | const int id = -1; | 
|  | 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); | 
|  |  | 
|  | std::string value_in_report; | 
|  | EXPECT_FALSE(GetValue(report, StatsReport::kStatsValueNameDataChannelId, | 
|  | &value_in_report)); | 
|  | } | 
|  |  | 
|  | // 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_P(StatsCollectorTrackTest, BytesCounterHandles64Bits) { | 
|  | StatsCollectorForTest stats(&pc_); | 
|  |  | 
|  | EXPECT_CALL(pc_, GetLocalCertificate(_, _)).WillRepeatedly(Return(false)); | 
|  | EXPECT_CALL(pc_, GetRemoteSSLCertificate_ReturnsRawPointer(_)) | 
|  | .WillRepeatedly(Return(nullptr)); | 
|  |  | 
|  | auto* media_channel = new MockVideoMediaChannel(); | 
|  | cricket::VideoChannel video_channel( | 
|  | worker_thread_, network_thread_, nullptr, rtc::WrapUnique(media_channel), | 
|  | "video", kDefaultRtcpMuxRequired, kDefaultSrtpRequired); | 
|  |  | 
|  | InitSessionStats(&video_channel); | 
|  | EXPECT_CALL(pc_, GetSessionStats(_)) | 
|  | .WillRepeatedly(Invoke([this](const ChannelNamePairs&) { | 
|  | return std::unique_ptr<SessionStats>( | 
|  | new SessionStats(session_stats_)); | 
|  | })); | 
|  |  | 
|  | 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); | 
|  |  | 
|  | // 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(pc_, video_channel()).WillRepeatedly(Return(&video_channel)); | 
|  | EXPECT_CALL(pc_, 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 audio BWE information is reported via stats. | 
|  | TEST_P(StatsCollectorTrackTest, AudioBandwidthEstimationInfoIsReported) { | 
|  | StatsCollectorForTest stats(&pc_); | 
|  |  | 
|  | EXPECT_CALL(pc_, GetLocalCertificate(_, _)).WillRepeatedly(Return(false)); | 
|  | EXPECT_CALL(pc_, GetRemoteSSLCertificate_ReturnsRawPointer(_)) | 
|  | .WillRepeatedly(Return(nullptr)); | 
|  |  | 
|  | auto* media_channel = new MockVoiceMediaChannel(); | 
|  | cricket::VoiceChannel voice_channel(worker_thread_, network_thread_, nullptr, | 
|  | nullptr, rtc::WrapUnique(media_channel), | 
|  | "audio", kDefaultRtcpMuxRequired, | 
|  | kDefaultSrtpRequired); | 
|  |  | 
|  | InitSessionStats(&voice_channel); | 
|  | EXPECT_CALL(pc_, GetSessionStats(_)) | 
|  | .WillRepeatedly(Invoke([this](const ChannelNamePairs&) { | 
|  | return std::unique_ptr<SessionStats>(new SessionStats(session_stats_)); | 
|  | })); | 
|  |  | 
|  | StatsReports reports;  // returned values. | 
|  | cricket::VoiceSenderInfo voice_sender_info; | 
|  | cricket::VoiceMediaInfo 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"); | 
|  |  | 
|  | AddOutgoingAudioTrackStats(&stats); | 
|  |  | 
|  | // Construct a stats value to read. | 
|  | voice_sender_info.add_ssrc(1234); | 
|  | voice_sender_info.bytes_sent = kBytesSent; | 
|  | stats_read.senders.push_back(voice_sender_info); | 
|  |  | 
|  | webrtc::Call::Stats call_stats; | 
|  | const int kSendBandwidth = 1234567; | 
|  | const int kRecvBandwidth = 12345678; | 
|  | const int kPacerDelay = 123; | 
|  | call_stats.send_bandwidth_bps = kSendBandwidth; | 
|  | call_stats.recv_bandwidth_bps = kRecvBandwidth; | 
|  | call_stats.pacer_delay_ms = kPacerDelay; | 
|  | EXPECT_CALL(pc_, GetCallStats()).WillRepeatedly(Return(call_stats)); | 
|  | EXPECT_CALL(pc_, voice_channel()).WillRepeatedly(Return(&voice_channel)); | 
|  | EXPECT_CALL(pc_, video_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::kStatsValueNameAvailableSendBandwidth); | 
|  | EXPECT_EQ(rtc::ToString(kSendBandwidth), result); | 
|  | result = ExtractBweStatsValue( | 
|  | reports, StatsReport::kStatsValueNameAvailableReceiveBandwidth); | 
|  | EXPECT_EQ(rtc::ToString(kRecvBandwidth), result); | 
|  | result = | 
|  | ExtractBweStatsValue(reports, StatsReport::kStatsValueNameBucketDelay); | 
|  | EXPECT_EQ(rtc::ToString(kPacerDelay), result); | 
|  | } | 
|  |  | 
|  | // Test that video BWE information is reported via stats. | 
|  | TEST_P(StatsCollectorTrackTest, VideoBandwidthEstimationInfoIsReported) { | 
|  | StatsCollectorForTest stats(&pc_); | 
|  |  | 
|  | EXPECT_CALL(pc_, GetLocalCertificate(_, _)).WillRepeatedly(Return(false)); | 
|  | EXPECT_CALL(pc_, GetRemoteSSLCertificate_ReturnsRawPointer(_)) | 
|  | .WillRepeatedly(Return(nullptr)); | 
|  |  | 
|  | auto* media_channel = new MockVideoMediaChannel(); | 
|  | cricket::VideoChannel video_channel( | 
|  | worker_thread_, network_thread_, nullptr, rtc::WrapUnique(media_channel), | 
|  | "video", kDefaultRtcpMuxRequired, kDefaultSrtpRequired); | 
|  |  | 
|  | InitSessionStats(&video_channel); | 
|  | EXPECT_CALL(pc_, GetSessionStats(_)) | 
|  | .WillRepeatedly(Invoke([this](const ChannelNamePairs&) { | 
|  | return std::unique_ptr<SessionStats>( | 
|  | new SessionStats(session_stats_)); | 
|  | })); | 
|  |  | 
|  | 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); | 
|  |  | 
|  | // 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); | 
|  |  | 
|  | webrtc::Call::Stats call_stats; | 
|  | const int kSendBandwidth = 1234567; | 
|  | const int kRecvBandwidth = 12345678; | 
|  | const int kPacerDelay = 123; | 
|  | call_stats.send_bandwidth_bps = kSendBandwidth; | 
|  | call_stats.recv_bandwidth_bps = kRecvBandwidth; | 
|  | call_stats.pacer_delay_ms = kPacerDelay; | 
|  | EXPECT_CALL(pc_, GetCallStats()).WillRepeatedly(Return(call_stats)); | 
|  | EXPECT_CALL(pc_, video_channel()).WillRepeatedly(Return(&video_channel)); | 
|  | EXPECT_CALL(pc_, 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::kStatsValueNameAvailableSendBandwidth); | 
|  | EXPECT_EQ(rtc::ToString(kSendBandwidth), result); | 
|  | result = ExtractBweStatsValue( | 
|  | reports, StatsReport::kStatsValueNameAvailableReceiveBandwidth); | 
|  | EXPECT_EQ(rtc::ToString(kRecvBandwidth), result); | 
|  | result = | 
|  | ExtractBweStatsValue(reports, StatsReport::kStatsValueNameBucketDelay); | 
|  | EXPECT_EQ(rtc::ToString(kPacerDelay), 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_P(StatsCollectorTrackTest, TrackObjectExistsWithoutUpdateStats) { | 
|  | StatsCollectorForTest stats(&pc_); | 
|  |  | 
|  | auto* media_channel = new MockVideoMediaChannel(); | 
|  | cricket::VideoChannel video_channel( | 
|  | worker_thread_, network_thread_, nullptr, rtc::WrapUnique(media_channel), | 
|  | "video", kDefaultRtcpMuxRequired, kDefaultSrtpRequired); | 
|  | AddOutgoingVideoTrackStats(&stats); | 
|  |  | 
|  | // Verfies the existence of the track report. | 
|  | StatsReports reports; | 
|  | stats.GetStats(NULL, &reports); | 
|  | ASSERT_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_P(StatsCollectorTrackTest, TrackAndSsrcObjectExistAfterUpdateSsrcStats) { | 
|  | StatsCollectorForTest stats(&pc_); | 
|  |  | 
|  | EXPECT_CALL(pc_, GetLocalCertificate(_, _)).WillRepeatedly(Return(false)); | 
|  | EXPECT_CALL(pc_, GetRemoteSSLCertificate_ReturnsRawPointer(_)) | 
|  | .WillRepeatedly(Return(nullptr)); | 
|  |  | 
|  | auto* media_channel = new MockVideoMediaChannel(); | 
|  | cricket::VideoChannel video_channel( | 
|  | worker_thread_, network_thread_, nullptr, rtc::WrapUnique(media_channel), | 
|  | "video", kDefaultRtcpMuxRequired, kDefaultSrtpRequired); | 
|  |  | 
|  | InitSessionStats(&video_channel); | 
|  | EXPECT_CALL(pc_, GetSessionStats(_)) | 
|  | .WillRepeatedly(Invoke([this](const ChannelNamePairs&) { | 
|  | return std::unique_ptr<SessionStats>( | 
|  | new SessionStats(session_stats_)); | 
|  | })); | 
|  |  | 
|  | AddOutgoingVideoTrackStats(&stats); | 
|  |  | 
|  | // 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(pc_, video_channel()).WillRepeatedly(Return(&video_channel)); | 
|  | EXPECT_CALL(pc_, 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); | 
|  | ASSERT_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); | 
|  |  | 
|  | std::string media_type = ExtractSsrcStatsValue(reports, | 
|  | StatsReport::kStatsValueNameMediaType); | 
|  | EXPECT_EQ("video", media_type); | 
|  | } | 
|  |  | 
|  | // 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_P(StatsCollectorTrackTest, TransportObjectLinkedFromSsrcObject) { | 
|  | StatsCollectorForTest stats(&pc_); | 
|  |  | 
|  | EXPECT_CALL(pc_, GetLocalCertificate(_, _)).WillRepeatedly(Return(false)); | 
|  | EXPECT_CALL(pc_, GetRemoteSSLCertificate_ReturnsRawPointer(_)) | 
|  | .WillRepeatedly(Return(nullptr)); | 
|  |  | 
|  | auto* media_channel = new MockVideoMediaChannel(); | 
|  | cricket::VideoChannel video_channel( | 
|  | worker_thread_, network_thread_, nullptr, rtc::WrapUnique(media_channel), | 
|  | "vcname", kDefaultRtcpMuxRequired, kDefaultSrtpRequired); | 
|  | AddOutgoingVideoTrackStats(&stats); | 
|  |  | 
|  | // 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(pc_, video_channel()).WillRepeatedly(Return(&video_channel)); | 
|  | EXPECT_CALL(pc_, voice_channel()).WillRepeatedly(ReturnNull()); | 
|  | EXPECT_CALL(*media_channel, GetStats(_)) | 
|  | .WillRepeatedly(DoAll(SetArgPointee<0>(stats_read), | 
|  | Return(true))); | 
|  |  | 
|  | InitSessionStats(&video_channel); | 
|  | EXPECT_CALL(pc_, GetSessionStats(_)) | 
|  | .WillRepeatedly(Invoke([this](const ChannelNamePairs&) { | 
|  | return std::unique_ptr<SessionStats>( | 
|  | new SessionStats(session_stats_)); | 
|  | })); | 
|  |  | 
|  | 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_P(StatsCollectorTrackTest, RemoteSsrcInfoIsAbsent) { | 
|  | StatsCollectorForTest stats(&pc_); | 
|  |  | 
|  | auto* media_channel = new MockVideoMediaChannel(); | 
|  | cricket::VideoChannel video_channel( | 
|  | worker_thread_, network_thread_, nullptr, rtc::WrapUnique(media_channel), | 
|  | "vcname", kDefaultRtcpMuxRequired, kDefaultSrtpRequired); | 
|  | AddOutgoingVideoTrackStats(&stats); | 
|  |  | 
|  | 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_P(StatsCollectorTrackTest, RemoteSsrcInfoIsPresent) { | 
|  | StatsCollectorForTest stats(&pc_); | 
|  |  | 
|  | EXPECT_CALL(pc_, GetLocalCertificate(_, _)).WillRepeatedly(Return(false)); | 
|  | EXPECT_CALL(pc_, GetRemoteSSLCertificate_ReturnsRawPointer(_)) | 
|  | .WillRepeatedly(Return(nullptr)); | 
|  |  | 
|  | auto* media_channel = new MockVideoMediaChannel(); | 
|  | // The transport_name known by the video channel. | 
|  | cricket::VideoChannel video_channel( | 
|  | worker_thread_, network_thread_, nullptr, rtc::WrapUnique(media_channel), | 
|  | "vcname", kDefaultRtcpMuxRequired, kDefaultSrtpRequired); | 
|  | AddOutgoingVideoTrackStats(&stats); | 
|  |  | 
|  | // Instruct the session to return stats containing the transport channel. | 
|  | InitSessionStats(&video_channel); | 
|  | EXPECT_CALL(pc_, GetSessionStats(_)) | 
|  | .WillRepeatedly(Invoke([this](const ChannelNamePairs&) { | 
|  | return std::unique_ptr<SessionStats>( | 
|  | new SessionStats(session_stats_)); | 
|  | })); | 
|  |  | 
|  | // 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(pc_, video_channel()).WillRepeatedly(Return(&video_channel)); | 
|  | EXPECT_CALL(pc_, 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_P(StatsCollectorTrackTest, ReportsFromRemoteTrack) { | 
|  | StatsCollectorForTest stats(&pc_); | 
|  |  | 
|  | EXPECT_CALL(pc_, GetLocalCertificate(_, _)).WillRepeatedly(Return(false)); | 
|  | EXPECT_CALL(pc_, GetRemoteSSLCertificate_ReturnsRawPointer(_)) | 
|  | .WillRepeatedly(Return(nullptr)); | 
|  |  | 
|  | auto* media_channel = new MockVideoMediaChannel(); | 
|  | cricket::VideoChannel video_channel( | 
|  | worker_thread_, network_thread_, nullptr, rtc::WrapUnique(media_channel), | 
|  | "video", kDefaultRtcpMuxRequired, kDefaultSrtpRequired); | 
|  |  | 
|  | InitSessionStats(&video_channel); | 
|  | EXPECT_CALL(pc_, GetSessionStats(_)) | 
|  | .WillRepeatedly(Invoke([this](const ChannelNamePairs&) { | 
|  | return std::unique_ptr<SessionStats>( | 
|  | new SessionStats(session_stats_)); | 
|  | })); | 
|  |  | 
|  | AddIncomingVideoTrackStats(&stats); | 
|  |  | 
|  | // 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(pc_, video_channel()).WillRepeatedly(Return(&video_channel)); | 
|  | EXPECT_CALL(pc_, 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); | 
|  | ASSERT_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; | 
|  | EXPECT_GT(c.id().length(), 0u); | 
|  | 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(); | 
|  | EXPECT_GT(c.id().length(), 0u); | 
|  | 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"; | 
|  | std::unique_ptr<rtc::FakeSSLCertificate> remote_cert( | 
|  | new rtc::FakeSSLCertificate(DersToPems(remote_ders))); | 
|  |  | 
|  | TestCertificateReports(local_cert, local_ders, std::move(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."; | 
|  | std::unique_ptr<rtc::FakeSSLCertificate> remote_cert( | 
|  | new rtc::FakeSSLCertificate(DerToPem(remote_der))); | 
|  |  | 
|  | TestCertificateReports(local_cert, std::vector<std::string>(1, local_der), | 
|  | std::move(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(pc_, GetLocalCertificate(_, _)).WillRepeatedly(Return(false)); | 
|  | EXPECT_CALL(pc_, GetRemoteSSLCertificate_ReturnsRawPointer(_)) | 
|  | .WillRepeatedly(Return(nullptr)); | 
|  |  | 
|  | 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(pc_, GetSessionStats(_)) | 
|  | .WillRepeatedly(Invoke([&session_stats](const ChannelNamePairs&) { | 
|  | return std::unique_ptr<SessionStats>( | 
|  | new SessionStats(session_stats)); | 
|  | })); | 
|  |  | 
|  | 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(pc_, GetLocalCertificate(_, _)).WillRepeatedly(Return(false)); | 
|  | EXPECT_CALL(pc_, GetRemoteSSLCertificate_ReturnsRawPointer(_)) | 
|  | .WillRepeatedly(Return(nullptr)); | 
|  |  | 
|  | 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(pc_, GetSessionStats(_)) | 
|  | .WillRepeatedly(Invoke([&session_stats](const ChannelNamePairs&) { | 
|  | return std::unique_ptr<SessionStats>( | 
|  | new SessionStats(session_stats)); | 
|  | })); | 
|  | 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."; | 
|  | std::unique_ptr<rtc::FakeSSLCertificate> remote_cert( | 
|  | new rtc::FakeSSLCertificate(DerToPem(remote_der))); | 
|  | remote_cert->set_digest_algorithm("foobar"); | 
|  |  | 
|  | TestCertificateReports(local_cert, std::vector<std::string>(1, local_der), | 
|  | std::move(remote_cert), std::vector<std::string>()); | 
|  | } | 
|  |  | 
|  | // This test verifies that the audio/video related stats which are -1 initially | 
|  | // will be filtered out. | 
|  | TEST_P(StatsCollectorTrackTest, FilterOutNegativeInitialValues) { | 
|  | StatsCollectorForTest stats(&pc_); | 
|  |  | 
|  | // This test uses streams, but only works for the stream case. | 
|  | if (!GetParam()) | 
|  | return; | 
|  | EXPECT_CALL(pc_, GetLocalCertificate(_, _)).WillRepeatedly(Return(false)); | 
|  | EXPECT_CALL(pc_, GetRemoteSSLCertificate_ReturnsRawPointer(_)) | 
|  | .WillRepeatedly(Return(nullptr)); | 
|  |  | 
|  | auto* media_channel = new MockVoiceMediaChannel(); | 
|  | cricket::VoiceChannel voice_channel( | 
|  | worker_thread_, network_thread_, nullptr, media_engine_, | 
|  | rtc::WrapUnique(media_channel), "vcname", kDefaultRtcpMuxRequired, | 
|  | kDefaultSrtpRequired); | 
|  |  | 
|  | // Create a local stream with a local audio track and adds it to the stats. | 
|  | if (stream_ == NULL) | 
|  | stream_ = webrtc::MediaStream::Create("streamlabel"); | 
|  |  | 
|  | rtc::scoped_refptr<FakeAudioTrackWithInitValue> local_track( | 
|  | new rtc::RefCountedObject<FakeAudioTrackWithInitValue>(kLocalTrackId)); | 
|  | stream_->AddTrack(local_track); | 
|  | EXPECT_CALL(pc_, GetLocalTrackIdBySsrc(kSsrcOfTrack, _)) | 
|  | .WillOnce(DoAll(SetArgPointee<1>(kLocalTrackId), Return(true))); | 
|  | if (GetParam()) { | 
|  | stats.AddStream(stream_); | 
|  | } | 
|  | stats.AddLocalAudioTrack(local_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<FakeAudioTrackWithInitValue> remote_track( | 
|  | new rtc::RefCountedObject<FakeAudioTrackWithInitValue>(kRemoteTrackId)); | 
|  | EXPECT_CALL(pc_, GetRemoteTrackIdBySsrc(kSsrcOfTrack, _)) | 
|  | .WillOnce(DoAll(SetArgPointee<1>(kRemoteTrackId), Return(true))); | 
|  | remote_stream->AddTrack(remote_track); | 
|  | if (GetParam()) { | 
|  | stats.AddStream(remote_stream); | 
|  | } | 
|  |  | 
|  | InitSessionStats(&voice_channel); | 
|  | EXPECT_CALL(pc_, GetSessionStats(_)) | 
|  | .WillRepeatedly(Invoke([this](const ChannelNamePairs&) { | 
|  | return std::unique_ptr<SessionStats>( | 
|  | new SessionStats(session_stats_)); | 
|  | })); | 
|  |  | 
|  | cricket::VoiceSenderInfo voice_sender_info; | 
|  | voice_sender_info.add_ssrc(kSsrcOfTrack); | 
|  | // These values are set to -1 initially in audio_send_stream. | 
|  | // The voice_sender_info will read the values from audio_send_stream. | 
|  | voice_sender_info.rtt_ms = -1; | 
|  | voice_sender_info.packets_lost = -1; | 
|  | voice_sender_info.jitter_ms = -1; | 
|  |  | 
|  | // Some of the contents in |voice_sender_info| needs to be updated from the | 
|  | // |audio_track_|. | 
|  | UpdateVoiceSenderInfoFromAudioTrack(local_track.get(), &voice_sender_info, | 
|  | true); | 
|  |  | 
|  | cricket::VoiceReceiverInfo voice_receiver_info; | 
|  | voice_receiver_info.add_ssrc(kSsrcOfTrack); | 
|  | voice_receiver_info.capture_start_ntp_time_ms = -1; | 
|  | voice_receiver_info.audio_level = -1; | 
|  |  | 
|  | // 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(pc_, voice_channel()).WillRepeatedly(Return(&voice_channel)); | 
|  | EXPECT_CALL(pc_, video_channel()).WillRepeatedly(ReturnNull()); | 
|  | EXPECT_CALL(*media_channel, GetStats(_)) | 
|  | .WillRepeatedly(DoAll(SetArgPointee<0>(stats_read), Return(true))); | 
|  |  | 
|  | StatsReports reports; | 
|  | stats.UpdateStats(PeerConnectionInterface::kStatsOutputLevelStandard); | 
|  |  | 
|  | // Get stats for the local track. | 
|  | stats.GetStats(local_track.get(), &reports); | 
|  | const StatsReport* report = | 
|  | FindNthReportByType(reports, StatsReport::kStatsReportTypeSsrc, 1); | 
|  | ASSERT_TRUE(report); | 
|  | // The -1 will not be added to the stats report. | 
|  | std::string value_in_report; | 
|  | EXPECT_FALSE( | 
|  | GetValue(report, StatsReport::kStatsValueNameRtt, &value_in_report)); | 
|  | EXPECT_FALSE(GetValue(report, StatsReport::kStatsValueNamePacketsLost, | 
|  | &value_in_report)); | 
|  | EXPECT_FALSE(GetValue(report, StatsReport::kStatsValueNameJitterReceived, | 
|  | &value_in_report)); | 
|  | EXPECT_FALSE(GetValue(report, StatsReport::kStatsValueNameEchoDelayMedian, | 
|  | &value_in_report)); | 
|  | EXPECT_FALSE(GetValue(report, StatsReport::kStatsValueNameEchoDelayStdDev, | 
|  | &value_in_report)); | 
|  |  | 
|  | // Get stats for the remote track. | 
|  | reports.clear(); | 
|  | stats.GetStats(remote_track.get(), &reports); | 
|  | report = FindNthReportByType(reports, StatsReport::kStatsReportTypeSsrc, 1); | 
|  | ASSERT_TRUE(report); | 
|  | EXPECT_FALSE(GetValue(report, | 
|  | StatsReport::kStatsValueNameCaptureStartNtpTimeMs, | 
|  | &value_in_report)); | 
|  | EXPECT_FALSE(GetValue(report, StatsReport::kStatsValueNameAudioInputLevel, | 
|  | &value_in_report)); | 
|  | } | 
|  |  | 
|  | // This test verifies that a local stats object can get statistics via | 
|  | // AudioTrackInterface::GetStats() method. | 
|  | TEST_P(StatsCollectorTrackTest, GetStatsFromLocalAudioTrack) { | 
|  | StatsCollectorForTest stats(&pc_); | 
|  |  | 
|  | EXPECT_CALL(pc_, GetLocalCertificate(_, _)).WillRepeatedly(Return(false)); | 
|  | EXPECT_CALL(pc_, GetRemoteSSLCertificate_ReturnsRawPointer(_)) | 
|  | .WillRepeatedly(Return(nullptr)); | 
|  |  | 
|  | auto* media_channel = new MockVoiceMediaChannel(); | 
|  | cricket::VoiceChannel voice_channel( | 
|  | worker_thread_, network_thread_, nullptr, media_engine_, | 
|  | rtc::WrapUnique(media_channel), "vcname", kDefaultRtcpMuxRequired, | 
|  | kDefaultSrtpRequired); | 
|  | AddOutgoingAudioTrackStats(&stats); | 
|  | 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, 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_P(StatsCollectorTrackTest, GetStatsFromRemoteStream) { | 
|  | StatsCollectorForTest stats(&pc_); | 
|  |  | 
|  | EXPECT_CALL(pc_, GetLocalCertificate(_, _)).WillRepeatedly(Return(false)); | 
|  | EXPECT_CALL(pc_, GetRemoteSSLCertificate_ReturnsRawPointer(_)) | 
|  | .WillRepeatedly(Return(nullptr)); | 
|  |  | 
|  | auto* media_channel = new MockVoiceMediaChannel(); | 
|  | cricket::VoiceChannel voice_channel( | 
|  | worker_thread_, network_thread_, nullptr, media_engine_, | 
|  | rtc::WrapUnique(media_channel), "vcname", kDefaultRtcpMuxRequired, | 
|  | kDefaultSrtpRequired); | 
|  | AddIncomingAudioTrackStats(&stats); | 
|  |  | 
|  | 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, 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_P(StatsCollectorTrackTest, GetStatsAfterRemoveAudioStream) { | 
|  | StatsCollectorForTest stats(&pc_); | 
|  |  | 
|  | EXPECT_CALL(pc_, GetLocalCertificate(_, _)).WillRepeatedly(Return(false)); | 
|  | EXPECT_CALL(pc_, GetRemoteSSLCertificate_ReturnsRawPointer(_)) | 
|  | .WillRepeatedly(Return(nullptr)); | 
|  |  | 
|  | auto* media_channel = new MockVoiceMediaChannel(); | 
|  | cricket::VoiceChannel voice_channel( | 
|  | worker_thread_, network_thread_, nullptr, media_engine_, | 
|  | rtc::WrapUnique(media_channel), "vcname", kDefaultRtcpMuxRequired, | 
|  | kDefaultSrtpRequired); | 
|  | AddOutgoingAudioTrackStats(&stats); | 
|  | stats.AddLocalAudioTrack(audio_track_.get(), kSsrcOfTrack); | 
|  |  | 
|  | InitSessionStats(&voice_channel); | 
|  | EXPECT_CALL(pc_, GetSessionStats(_)) | 
|  | .WillRepeatedly(Invoke([this](const ChannelNamePairs&) { | 
|  | return std::unique_ptr<SessionStats>( | 
|  | new SessionStats(session_stats_)); | 
|  | })); | 
|  |  | 
|  | 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(pc_, voice_channel()).WillRepeatedly(Return(&voice_channel)); | 
|  | EXPECT_CALL(pc_, 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_P(StatsCollectorTrackTest, LocalAndRemoteTracksWithSameSsrc) { | 
|  | StatsCollectorForTest stats(&pc_); | 
|  |  | 
|  | EXPECT_CALL(pc_, GetLocalCertificate(_, _)).WillRepeatedly(Return(false)); | 
|  | EXPECT_CALL(pc_, GetRemoteSSLCertificate_ReturnsRawPointer(_)) | 
|  | .WillRepeatedly(Return(nullptr)); | 
|  |  | 
|  | auto* media_channel = new MockVoiceMediaChannel(); | 
|  | cricket::VoiceChannel voice_channel( | 
|  | worker_thread_, network_thread_, nullptr, media_engine_, | 
|  | rtc::WrapUnique(media_channel), "vcname", kDefaultRtcpMuxRequired, | 
|  | kDefaultSrtpRequired); | 
|  |  | 
|  | // Create a local stream with a local audio track and adds it to the stats. | 
|  | AddOutgoingAudioTrackStats(&stats); | 
|  | 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(pc_, 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(&voice_channel); | 
|  | EXPECT_CALL(pc_, GetSessionStats(_)) | 
|  | .WillRepeatedly(Invoke([this](const ChannelNamePairs&) { | 
|  | return std::unique_ptr<SessionStats>( | 
|  | new SessionStats(session_stats_)); | 
|  | })); | 
|  |  | 
|  | 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, | 
|  | true); | 
|  |  | 
|  | 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(pc_, voice_channel()).WillRepeatedly(Return(&voice_channel)); | 
|  | EXPECT_CALL(pc_, 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); | 
|  | ASSERT_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); | 
|  | ASSERT_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_P(StatsCollectorTrackTest, TwoLocalTracksWithSameSsrc) { | 
|  | StatsCollectorForTest stats(&pc_); | 
|  |  | 
|  | // This test only makes sense when we're using streams. | 
|  | if (!GetParam()) | 
|  | return; | 
|  |  | 
|  | EXPECT_CALL(pc_, GetLocalCertificate(_, _)).WillRepeatedly(Return(false)); | 
|  | EXPECT_CALL(pc_, GetRemoteSSLCertificate_ReturnsRawPointer(_)) | 
|  | .WillRepeatedly(Return(nullptr)); | 
|  |  | 
|  | auto* media_channel = new MockVoiceMediaChannel(); | 
|  | cricket::VoiceChannel voice_channel( | 
|  | worker_thread_, network_thread_, nullptr, media_engine_, | 
|  | rtc::WrapUnique(media_channel), "vcname", kDefaultRtcpMuxRequired, | 
|  | kDefaultSrtpRequired); | 
|  |  | 
|  | // Create a local stream with a local audio track and adds it to the stats. | 
|  | AddOutgoingAudioTrackStats(&stats); | 
|  | stats.AddLocalAudioTrack(audio_track_, kSsrcOfTrack); | 
|  |  | 
|  | cricket::VoiceSenderInfo voice_sender_info; | 
|  | InitVoiceSenderInfo(&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, 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(pc_, 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, | 
|  | media_channel, &new_voice_sender_info, NULL, &new_stats_read, &reports); | 
|  | } | 
|  |  | 
|  | // This test verifies that stats are correctly set in video send ssrc stats. | 
|  | TEST_P(StatsCollectorTrackTest, VerifyVideoSendSsrcStats) { | 
|  | StatsCollectorForTest stats(&pc_); | 
|  |  | 
|  | EXPECT_CALL(pc_, GetLocalCertificate(_, _)).WillRepeatedly(Return(false)); | 
|  | EXPECT_CALL(pc_, GetRemoteSSLCertificate_ReturnsRawPointer(_)) | 
|  | .WillRepeatedly(Return(nullptr)); | 
|  |  | 
|  | auto* media_channel = new MockVideoMediaChannel(); | 
|  | cricket::VideoChannel video_channel( | 
|  | worker_thread_, network_thread_, nullptr, rtc::WrapUnique(media_channel), | 
|  | "video", kDefaultRtcpMuxRequired, kDefaultSrtpRequired); | 
|  |  | 
|  | InitSessionStats(&video_channel); | 
|  | EXPECT_CALL(pc_, GetSessionStats(_)) | 
|  | .WillRepeatedly(Invoke([this](const ChannelNamePairs&) { | 
|  | return std::unique_ptr<SessionStats>( | 
|  | new SessionStats(session_stats_)); | 
|  | })); | 
|  |  | 
|  | StatsReports reports;  // returned values. | 
|  | cricket::VideoSenderInfo video_sender_info; | 
|  | cricket::VideoMediaInfo stats_read; | 
|  |  | 
|  | AddOutgoingVideoTrackStats(&stats); | 
|  |  | 
|  | // Construct a stats value to read. | 
|  | video_sender_info.add_ssrc(1234); | 
|  | video_sender_info.frames_encoded = 10; | 
|  | video_sender_info.qp_sum = 11; | 
|  | stats_read.senders.push_back(video_sender_info); | 
|  |  | 
|  | EXPECT_CALL(pc_, video_channel()).WillRepeatedly(Return(&video_channel)); | 
|  | EXPECT_CALL(pc_, 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); | 
|  | EXPECT_EQ(rtc::ToString(video_sender_info.frames_encoded), | 
|  | ExtractSsrcStatsValue(reports, | 
|  | StatsReport::kStatsValueNameFramesEncoded)); | 
|  | EXPECT_EQ(rtc::ToString(*video_sender_info.qp_sum), | 
|  | ExtractSsrcStatsValue(reports, StatsReport::kStatsValueNameQpSum)); | 
|  | } | 
|  |  | 
|  | // This test verifies that stats are correctly set in video receive ssrc stats. | 
|  | TEST_P(StatsCollectorTrackTest, VerifyVideoReceiveSsrcStats) { | 
|  | StatsCollectorForTest stats(&pc_); | 
|  |  | 
|  | EXPECT_CALL(pc_, GetLocalCertificate(_, _)).WillRepeatedly(Return(false)); | 
|  | EXPECT_CALL(pc_, GetRemoteSSLCertificate_ReturnsRawPointer(_)) | 
|  | .WillRepeatedly(Return(nullptr)); | 
|  |  | 
|  | auto* media_channel = new MockVideoMediaChannel(); | 
|  | cricket::VideoChannel video_channel( | 
|  | worker_thread_, network_thread_, nullptr, rtc::WrapUnique(media_channel), | 
|  | "video", kDefaultRtcpMuxRequired, kDefaultSrtpRequired); | 
|  |  | 
|  | InitSessionStats(&video_channel); | 
|  | EXPECT_CALL(pc_, GetSessionStats(_)) | 
|  | .WillRepeatedly(Invoke([this](const ChannelNamePairs&) { | 
|  | return std::unique_ptr<SessionStats>( | 
|  | new SessionStats(session_stats_)); | 
|  | })); | 
|  |  | 
|  | StatsReports reports;  // returned values. | 
|  | cricket::VideoReceiverInfo video_receiver_info; | 
|  | cricket::VideoMediaInfo stats_read; | 
|  |  | 
|  | AddIncomingVideoTrackStats(&stats); | 
|  |  | 
|  | // Construct a stats value to read. | 
|  | video_receiver_info.add_ssrc(1234); | 
|  | video_receiver_info.frames_decoded = 10; | 
|  | video_receiver_info.qp_sum = 11; | 
|  | stats_read.receivers.push_back(video_receiver_info); | 
|  |  | 
|  | EXPECT_CALL(pc_, video_channel()).WillRepeatedly(Return(&video_channel)); | 
|  | EXPECT_CALL(pc_, 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); | 
|  | EXPECT_EQ(rtc::ToString(video_receiver_info.frames_decoded), | 
|  | ExtractSsrcStatsValue(reports, | 
|  | StatsReport::kStatsValueNameFramesDecoded)); | 
|  | EXPECT_EQ(rtc::ToString(*video_receiver_info.qp_sum), | 
|  | ExtractSsrcStatsValue(reports, StatsReport::kStatsValueNameQpSum)); | 
|  | } | 
|  |  | 
|  | INSTANTIATE_TEST_CASE_P(HasStream, StatsCollectorTrackTest, ::testing::Bool()); | 
|  |  | 
|  | }  // namespace webrtc |