| /* | 
 |  *  Copyright 2016 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 <stdint.h> | 
 | #include <string.h> | 
 |  | 
 | #include <memory> | 
 | #include <set> | 
 | #include <string> | 
 | #include <vector> | 
 |  | 
 | #include "absl/algorithm/container.h" | 
 | #include "absl/strings/match.h" | 
 | #include "api/audio_codecs/builtin_audio_decoder_factory.h" | 
 | #include "api/audio_codecs/builtin_audio_encoder_factory.h" | 
 | #include "api/audio_options.h" | 
 | #include "api/data_channel_interface.h" | 
 | #include "api/peer_connection_interface.h" | 
 | #include "api/rtp_receiver_interface.h" | 
 | #include "api/rtp_sender_interface.h" | 
 | #include "api/scoped_refptr.h" | 
 | #include "api/stats/rtc_stats.h" | 
 | #include "api/stats/rtc_stats_report.h" | 
 | #include "api/stats/rtcstats_objects.h" | 
 | #include "pc/rtc_stats_traversal.h" | 
 | #include "pc/test/peer_connection_test_wrapper.h" | 
 | #include "pc/test/rtc_stats_obtainer.h" | 
 | #include "rtc_base/checks.h" | 
 | #include "rtc_base/event_tracer.h" | 
 | #include "rtc_base/gunit.h" | 
 | #include "rtc_base/thread.h" | 
 | #include "rtc_base/trace_event.h" | 
 | #include "rtc_base/virtual_socket_server.h" | 
 | #include "test/gmock.h" | 
 | #include "test/gtest.h" | 
 |  | 
 | using ::testing::Contains; | 
 |  | 
 | namespace webrtc { | 
 |  | 
 | namespace { | 
 |  | 
 | const int64_t kGetStatsTimeoutMs = 10000; | 
 |  | 
 | const unsigned char* GetCategoryEnabledHandler(const char* name) { | 
 |   if (strcmp("webrtc_stats", name) != 0) { | 
 |     return reinterpret_cast<const unsigned char*>(""); | 
 |   } | 
 |   return reinterpret_cast<const unsigned char*>(name); | 
 | } | 
 |  | 
 | class RTCStatsReportTraceListener { | 
 |  public: | 
 |   static void SetUp() { | 
 |     if (!traced_report_) | 
 |       traced_report_ = new RTCStatsReportTraceListener(); | 
 |     traced_report_->last_trace_ = ""; | 
 |     SetupEventTracer(&GetCategoryEnabledHandler, | 
 |                      &RTCStatsReportTraceListener::AddTraceEventHandler); | 
 |   } | 
 |  | 
 |   static const std::string& last_trace() { | 
 |     RTC_DCHECK(traced_report_); | 
 |     return traced_report_->last_trace_; | 
 |   } | 
 |  | 
 |  private: | 
 |   static void AddTraceEventHandler( | 
 |       char phase, | 
 |       const unsigned char* category_enabled, | 
 |       const char* name, | 
 |       unsigned long long id,  // NOLINT(runtime/int) | 
 |       int num_args, | 
 |       const char** arg_names, | 
 |       const unsigned char* arg_types, | 
 |       const unsigned long long* arg_values,  // NOLINT(runtime/int) | 
 |       unsigned char flags) { | 
 |     RTC_DCHECK(traced_report_); | 
 |     EXPECT_STREQ("webrtc_stats", | 
 |                  reinterpret_cast<const char*>(category_enabled)); | 
 |     EXPECT_STREQ("webrtc_stats", name); | 
 |     EXPECT_EQ(1, num_args); | 
 |     EXPECT_STREQ("report", arg_names[0]); | 
 |     EXPECT_EQ(TRACE_VALUE_TYPE_COPY_STRING, arg_types[0]); | 
 |  | 
 |     traced_report_->last_trace_ = reinterpret_cast<const char*>(arg_values[0]); | 
 |   } | 
 |  | 
 |   static RTCStatsReportTraceListener* traced_report_; | 
 |   std::string last_trace_; | 
 | }; | 
 |  | 
 | RTCStatsReportTraceListener* RTCStatsReportTraceListener::traced_report_ = | 
 |     nullptr; | 
 |  | 
 | class RTCStatsIntegrationTest : public ::testing::Test { | 
 |  public: | 
 |   RTCStatsIntegrationTest() | 
 |       : network_thread_(new rtc::Thread(&virtual_socket_server_)), | 
 |         worker_thread_(rtc::Thread::Create()) { | 
 |     RTCStatsReportTraceListener::SetUp(); | 
 |  | 
 |     RTC_CHECK(network_thread_->Start()); | 
 |     RTC_CHECK(worker_thread_->Start()); | 
 |  | 
 |     caller_ = rtc::make_ref_counted<PeerConnectionTestWrapper>( | 
 |         "caller", &virtual_socket_server_, network_thread_.get(), | 
 |         worker_thread_.get()); | 
 |     callee_ = rtc::make_ref_counted<PeerConnectionTestWrapper>( | 
 |         "callee", &virtual_socket_server_, network_thread_.get(), | 
 |         worker_thread_.get()); | 
 |   } | 
 |  | 
 |   void StartCall() { | 
 |     // Create PeerConnections and "connect" sigslots | 
 |     PeerConnectionInterface::RTCConfiguration config; | 
 |     config.sdp_semantics = SdpSemantics::kUnifiedPlan; | 
 |     PeerConnectionInterface::IceServer ice_server; | 
 |     ice_server.uri = "stun:1.1.1.1:3478"; | 
 |     config.servers.push_back(ice_server); | 
 |     EXPECT_TRUE(caller_->CreatePc(config, CreateBuiltinAudioEncoderFactory(), | 
 |                                   CreateBuiltinAudioDecoderFactory())); | 
 |     EXPECT_TRUE(callee_->CreatePc(config, CreateBuiltinAudioEncoderFactory(), | 
 |                                   CreateBuiltinAudioDecoderFactory())); | 
 |     PeerConnectionTestWrapper::Connect(caller_.get(), callee_.get()); | 
 |  | 
 |     // Get user media for audio and video | 
 |     caller_->GetAndAddUserMedia(true, cricket::AudioOptions(), true); | 
 |     callee_->GetAndAddUserMedia(true, cricket::AudioOptions(), true); | 
 |  | 
 |     // Create data channels | 
 |     DataChannelInit init; | 
 |     caller_->CreateDataChannel("data", init); | 
 |     callee_->CreateDataChannel("data", init); | 
 |  | 
 |     // Negotiate and wait for call to establish | 
 |     caller_->CreateOffer(PeerConnectionInterface::RTCOfferAnswerOptions()); | 
 |     caller_->WaitForCallEstablished(); | 
 |     callee_->WaitForCallEstablished(); | 
 |   } | 
 |  | 
 |   rtc::scoped_refptr<const RTCStatsReport> GetStatsFromCaller() { | 
 |     return GetStats(caller_->pc()); | 
 |   } | 
 |   rtc::scoped_refptr<const RTCStatsReport> GetStatsFromCaller( | 
 |       rtc::scoped_refptr<RtpSenderInterface> selector) { | 
 |     return GetStats(caller_->pc(), selector); | 
 |   } | 
 |   rtc::scoped_refptr<const RTCStatsReport> GetStatsFromCaller( | 
 |       rtc::scoped_refptr<RtpReceiverInterface> selector) { | 
 |     return GetStats(caller_->pc(), selector); | 
 |   } | 
 |  | 
 |   rtc::scoped_refptr<const RTCStatsReport> GetStatsFromCallee() { | 
 |     return GetStats(callee_->pc()); | 
 |   } | 
 |   rtc::scoped_refptr<const RTCStatsReport> GetStatsFromCallee( | 
 |       rtc::scoped_refptr<RtpSenderInterface> selector) { | 
 |     return GetStats(callee_->pc(), selector); | 
 |   } | 
 |   rtc::scoped_refptr<const RTCStatsReport> GetStatsFromCallee( | 
 |       rtc::scoped_refptr<RtpReceiverInterface> selector) { | 
 |     return GetStats(callee_->pc(), selector); | 
 |   } | 
 |  | 
 |  protected: | 
 |   static rtc::scoped_refptr<const RTCStatsReport> GetStats( | 
 |       PeerConnectionInterface* pc) { | 
 |     rtc::scoped_refptr<RTCStatsObtainer> stats_obtainer = | 
 |         RTCStatsObtainer::Create(); | 
 |     pc->GetStats(stats_obtainer.get()); | 
 |     EXPECT_TRUE_WAIT(stats_obtainer->report() != nullptr, kGetStatsTimeoutMs); | 
 |     return stats_obtainer->report(); | 
 |   } | 
 |  | 
 |   template <typename T> | 
 |   static rtc::scoped_refptr<const RTCStatsReport> GetStats( | 
 |       PeerConnectionInterface* pc, | 
 |       rtc::scoped_refptr<T> selector) { | 
 |     rtc::scoped_refptr<RTCStatsObtainer> stats_obtainer = | 
 |         RTCStatsObtainer::Create(); | 
 |     pc->GetStats(selector, stats_obtainer); | 
 |     EXPECT_TRUE_WAIT(stats_obtainer->report() != nullptr, kGetStatsTimeoutMs); | 
 |     return stats_obtainer->report(); | 
 |   } | 
 |  | 
 |   // `network_thread_` uses `virtual_socket_server_` so they must be | 
 |   // constructed/destructed in the correct order. | 
 |   rtc::VirtualSocketServer virtual_socket_server_; | 
 |   std::unique_ptr<rtc::Thread> network_thread_; | 
 |   std::unique_ptr<rtc::Thread> worker_thread_; | 
 |   rtc::scoped_refptr<PeerConnectionTestWrapper> caller_; | 
 |   rtc::scoped_refptr<PeerConnectionTestWrapper> callee_; | 
 | }; | 
 |  | 
 | class RTCStatsVerifier { | 
 |  public: | 
 |   RTCStatsVerifier(const RTCStatsReport* report, const RTCStats* stats) | 
 |       : report_(report), stats_(stats), all_tests_successful_(true) { | 
 |     RTC_CHECK(report_); | 
 |     RTC_CHECK(stats_); | 
 |     for (const RTCStatsMemberInterface* member : stats_->Members()) { | 
 |       untested_members_.insert(member); | 
 |     } | 
 |   } | 
 |  | 
 |   void MarkMemberTested(const RTCStatsMemberInterface& member, | 
 |                         bool test_successful) { | 
 |     untested_members_.erase(&member); | 
 |     all_tests_successful_ &= test_successful; | 
 |   } | 
 |  | 
 |   void TestMemberIsDefined(const RTCStatsMemberInterface& member) { | 
 |     EXPECT_TRUE(member.is_defined()) | 
 |         << stats_->type() << "." << member.name() << "[" << stats_->id() | 
 |         << "] was undefined."; | 
 |     MarkMemberTested(member, member.is_defined()); | 
 |   } | 
 |  | 
 |   void TestMemberIsUndefined(const RTCStatsMemberInterface& member) { | 
 |     EXPECT_FALSE(member.is_defined()) | 
 |         << stats_->type() << "." << member.name() << "[" << stats_->id() | 
 |         << "] was defined (" << member.ValueToString() << ")."; | 
 |     MarkMemberTested(member, !member.is_defined()); | 
 |   } | 
 |  | 
 |   template <typename T> | 
 |   void TestMemberIsPositive(const RTCStatsMemberInterface& member) { | 
 |     EXPECT_TRUE(member.is_defined()) | 
 |         << stats_->type() << "." << member.name() << "[" << stats_->id() | 
 |         << "] was undefined."; | 
 |     if (!member.is_defined()) { | 
 |       MarkMemberTested(member, false); | 
 |       return; | 
 |     } | 
 |     bool is_positive = *member.cast_to<RTCStatsMember<T>>() > T(0); | 
 |     EXPECT_TRUE(is_positive) | 
 |         << stats_->type() << "." << member.name() << "[" << stats_->id() | 
 |         << "] was not positive (" << member.ValueToString() << ")."; | 
 |     MarkMemberTested(member, is_positive); | 
 |   } | 
 |  | 
 |   template <typename T> | 
 |   void TestMemberIsNonNegative(const RTCStatsMemberInterface& member) { | 
 |     EXPECT_TRUE(member.is_defined()) | 
 |         << stats_->type() << "." << member.name() << "[" << stats_->id() | 
 |         << "] was undefined."; | 
 |     if (!member.is_defined()) { | 
 |       MarkMemberTested(member, false); | 
 |       return; | 
 |     } | 
 |     bool is_non_negative = *member.cast_to<RTCStatsMember<T>>() >= T(0); | 
 |     EXPECT_TRUE(is_non_negative) | 
 |         << stats_->type() << "." << member.name() << "[" << stats_->id() | 
 |         << "] was not non-negative (" << member.ValueToString() << ")."; | 
 |     MarkMemberTested(member, is_non_negative); | 
 |   } | 
 |  | 
 |   void TestMemberIsIDReference(const RTCStatsMemberInterface& member, | 
 |                                const char* expected_type) { | 
 |     TestMemberIsIDReference(member, expected_type, false); | 
 |   } | 
 |  | 
 |   void TestMemberIsOptionalIDReference(const RTCStatsMemberInterface& member, | 
 |                                        const char* expected_type) { | 
 |     TestMemberIsIDReference(member, expected_type, true); | 
 |   } | 
 |  | 
 |   bool ExpectAllMembersSuccessfullyTested() { | 
 |     if (untested_members_.empty()) | 
 |       return all_tests_successful_; | 
 |     for (const RTCStatsMemberInterface* member : untested_members_) { | 
 |       EXPECT_TRUE(false) << stats_->type() << "." << member->name() << "[" | 
 |                          << stats_->id() << "] was not tested."; | 
 |     } | 
 |     return false; | 
 |   } | 
 |  | 
 |  private: | 
 |   void TestMemberIsIDReference(const RTCStatsMemberInterface& member, | 
 |                                const char* expected_type, | 
 |                                bool optional) { | 
 |     if (optional && !member.is_defined()) { | 
 |       MarkMemberTested(member, true); | 
 |       return; | 
 |     } | 
 |     bool valid_reference = false; | 
 |     if (member.is_defined()) { | 
 |       if (member.type() == RTCStatsMemberInterface::kString) { | 
 |         // A single ID. | 
 |         const RTCStatsMember<std::string>& id = | 
 |             member.cast_to<RTCStatsMember<std::string>>(); | 
 |         const RTCStats* referenced_stats = report_->Get(*id); | 
 |         valid_reference = | 
 |             referenced_stats && referenced_stats->type() == expected_type; | 
 |       } else if (member.type() == RTCStatsMemberInterface::kSequenceString) { | 
 |         // A vector of IDs. | 
 |         valid_reference = true; | 
 |         const RTCStatsMember<std::vector<std::string>>& ids = | 
 |             member.cast_to<RTCStatsMember<std::vector<std::string>>>(); | 
 |         for (const std::string& id : *ids) { | 
 |           const RTCStats* referenced_stats = report_->Get(id); | 
 |           if (!referenced_stats || referenced_stats->type() != expected_type) { | 
 |             valid_reference = false; | 
 |             break; | 
 |           } | 
 |         } | 
 |       } | 
 |     } | 
 |     EXPECT_TRUE(valid_reference) | 
 |         << stats_->type() << "." << member.name() | 
 |         << " is not a reference to an " | 
 |            "existing dictionary of type " | 
 |         << expected_type << " (value: " | 
 |         << (member.is_defined() ? member.ValueToString() : "null") << ")."; | 
 |     MarkMemberTested(member, valid_reference); | 
 |   } | 
 |  | 
 |   rtc::scoped_refptr<const RTCStatsReport> report_; | 
 |   const RTCStats* stats_; | 
 |   std::set<const RTCStatsMemberInterface*> untested_members_; | 
 |   bool all_tests_successful_; | 
 | }; | 
 |  | 
 | class RTCStatsReportVerifier { | 
 |  public: | 
 |   static std::set<const char*> StatsTypes() { | 
 |     std::set<const char*> stats_types; | 
 |     stats_types.insert(RTCCertificateStats::kType); | 
 |     stats_types.insert(RTCCodecStats::kType); | 
 |     stats_types.insert(RTCDataChannelStats::kType); | 
 |     stats_types.insert(RTCIceCandidatePairStats::kType); | 
 |     stats_types.insert(RTCLocalIceCandidateStats::kType); | 
 |     stats_types.insert(RTCRemoteIceCandidateStats::kType); | 
 |     stats_types.insert(DEPRECATED_RTCMediaStreamStats::kType); | 
 |     stats_types.insert(DEPRECATED_RTCMediaStreamTrackStats::kType); | 
 |     stats_types.insert(RTCPeerConnectionStats::kType); | 
 |     stats_types.insert(RTCInboundRTPStreamStats::kType); | 
 |     stats_types.insert(RTCOutboundRTPStreamStats::kType); | 
 |     stats_types.insert(RTCTransportStats::kType); | 
 |     return stats_types; | 
 |   } | 
 |  | 
 |   explicit RTCStatsReportVerifier(const RTCStatsReport* report) | 
 |       : report_(report) {} | 
 |  | 
 |   void VerifyReport(std::vector<const char*> allowed_missing_stats) { | 
 |     std::set<const char*> missing_stats = StatsTypes(); | 
 |     bool verify_successful = true; | 
 |     std::vector<const RTCTransportStats*> transport_stats = | 
 |         report_->GetStatsOfType<RTCTransportStats>(); | 
 |     EXPECT_EQ(transport_stats.size(), 1U); | 
 |     std::string selected_candidate_pair_id = | 
 |         *transport_stats[0]->selected_candidate_pair_id; | 
 |     for (const RTCStats& stats : *report_) { | 
 |       missing_stats.erase(stats.type()); | 
 |       if (stats.type() == RTCCertificateStats::kType) { | 
 |         verify_successful &= | 
 |             VerifyRTCCertificateStats(stats.cast_to<RTCCertificateStats>()); | 
 |       } else if (stats.type() == RTCCodecStats::kType) { | 
 |         verify_successful &= | 
 |             VerifyRTCCodecStats(stats.cast_to<RTCCodecStats>()); | 
 |       } else if (stats.type() == RTCDataChannelStats::kType) { | 
 |         verify_successful &= | 
 |             VerifyRTCDataChannelStats(stats.cast_to<RTCDataChannelStats>()); | 
 |       } else if (stats.type() == RTCIceCandidatePairStats::kType) { | 
 |         verify_successful &= VerifyRTCIceCandidatePairStats( | 
 |             stats.cast_to<RTCIceCandidatePairStats>(), | 
 |             stats.id() == selected_candidate_pair_id); | 
 |       } else if (stats.type() == RTCLocalIceCandidateStats::kType) { | 
 |         verify_successful &= VerifyRTCLocalIceCandidateStats( | 
 |             stats.cast_to<RTCLocalIceCandidateStats>()); | 
 |       } else if (stats.type() == RTCRemoteIceCandidateStats::kType) { | 
 |         verify_successful &= VerifyRTCRemoteIceCandidateStats( | 
 |             stats.cast_to<RTCRemoteIceCandidateStats>()); | 
 |       } else if (stats.type() == DEPRECATED_RTCMediaStreamStats::kType) { | 
 |         verify_successful &= DEPRECATED_VerifyRTCMediaStreamStats( | 
 |             stats.cast_to<DEPRECATED_RTCMediaStreamStats>()); | 
 |       } else if (stats.type() == DEPRECATED_RTCMediaStreamTrackStats::kType) { | 
 |         verify_successful &= VerLegacyifyRTCMediaStreamTrackStats( | 
 |             stats.cast_to<DEPRECATED_RTCMediaStreamTrackStats>()); | 
 |       } else if (stats.type() == RTCPeerConnectionStats::kType) { | 
 |         verify_successful &= VerifyRTCPeerConnectionStats( | 
 |             stats.cast_to<RTCPeerConnectionStats>()); | 
 |       } else if (stats.type() == RTCInboundRTPStreamStats::kType) { | 
 |         verify_successful &= VerifyRTCInboundRTPStreamStats( | 
 |             stats.cast_to<RTCInboundRTPStreamStats>()); | 
 |       } else if (stats.type() == RTCOutboundRTPStreamStats::kType) { | 
 |         verify_successful &= VerifyRTCOutboundRTPStreamStats( | 
 |             stats.cast_to<RTCOutboundRTPStreamStats>()); | 
 |       } else if (stats.type() == RTCRemoteInboundRtpStreamStats::kType) { | 
 |         verify_successful &= VerifyRTCRemoteInboundRtpStreamStats( | 
 |             stats.cast_to<RTCRemoteInboundRtpStreamStats>()); | 
 |       } else if (stats.type() == RTCRemoteOutboundRtpStreamStats::kType) { | 
 |         verify_successful &= VerifyRTCRemoteOutboundRTPStreamStats( | 
 |             stats.cast_to<RTCRemoteOutboundRtpStreamStats>()); | 
 |       } else if (stats.type() == RTCAudioSourceStats::kType) { | 
 |         // RTCAudioSourceStats::kType and RTCVideoSourceStats::kType both have | 
 |         // the value "media-source", but they are distinguishable with pointer | 
 |         // equality (==). In JavaScript they would be distinguished with `kind`. | 
 |         verify_successful &= | 
 |             VerifyRTCAudioSourceStats(stats.cast_to<RTCAudioSourceStats>()); | 
 |       } else if (stats.type() == RTCVideoSourceStats::kType) { | 
 |         // RTCAudioSourceStats::kType and RTCVideoSourceStats::kType both have | 
 |         // the value "media-source", but they are distinguishable with pointer | 
 |         // equality (==). In JavaScript they would be distinguished with `kind`. | 
 |         verify_successful &= | 
 |             VerifyRTCVideoSourceStats(stats.cast_to<RTCVideoSourceStats>()); | 
 |       } else if (stats.type() == RTCTransportStats::kType) { | 
 |         verify_successful &= | 
 |             VerifyRTCTransportStats(stats.cast_to<RTCTransportStats>()); | 
 |       } else { | 
 |         EXPECT_TRUE(false) << "Unrecognized stats type: " << stats.type(); | 
 |         verify_successful = false; | 
 |       } | 
 |     } | 
 |     for (const char* missing : missing_stats) { | 
 |       if (!absl::c_linear_search(allowed_missing_stats, missing)) { | 
 |         verify_successful = false; | 
 |         EXPECT_TRUE(false) << "Missing expected stats type: " << missing; | 
 |       } | 
 |     } | 
 |     EXPECT_TRUE(verify_successful) | 
 |         << "One or more problems with the stats. This is the report:\n" | 
 |         << report_->ToJson(); | 
 |   } | 
 |  | 
 |   bool VerifyRTCCertificateStats(const RTCCertificateStats& certificate) { | 
 |     RTCStatsVerifier verifier(report_.get(), &certificate); | 
 |     verifier.TestMemberIsDefined(certificate.fingerprint); | 
 |     verifier.TestMemberIsDefined(certificate.fingerprint_algorithm); | 
 |     verifier.TestMemberIsDefined(certificate.base64_certificate); | 
 |     verifier.TestMemberIsOptionalIDReference(certificate.issuer_certificate_id, | 
 |                                              RTCCertificateStats::kType); | 
 |     return verifier.ExpectAllMembersSuccessfullyTested(); | 
 |   } | 
 |  | 
 |   bool VerifyRTCCodecStats(const RTCCodecStats& codec) { | 
 |     RTCStatsVerifier verifier(report_.get(), &codec); | 
 |     verifier.TestMemberIsIDReference(codec.transport_id, | 
 |                                      RTCTransportStats::kType); | 
 |     verifier.TestMemberIsDefined(codec.payload_type); | 
 |     verifier.TestMemberIsDefined(codec.mime_type); | 
 |     verifier.TestMemberIsPositive<uint32_t>(codec.clock_rate); | 
 |  | 
 |     if (codec.mime_type->rfind("audio", 0) == 0) | 
 |       verifier.TestMemberIsPositive<uint32_t>(codec.channels); | 
 |     else | 
 |       verifier.TestMemberIsUndefined(codec.channels); | 
 |  | 
 |     // sdp_fmtp_line is an optional field. | 
 |     verifier.MarkMemberTested(codec.sdp_fmtp_line, true); | 
 |     return verifier.ExpectAllMembersSuccessfullyTested(); | 
 |   } | 
 |  | 
 |   bool VerifyRTCDataChannelStats(const RTCDataChannelStats& data_channel) { | 
 |     RTCStatsVerifier verifier(report_.get(), &data_channel); | 
 |     verifier.TestMemberIsDefined(data_channel.label); | 
 |     verifier.TestMemberIsDefined(data_channel.protocol); | 
 |     verifier.TestMemberIsDefined(data_channel.data_channel_identifier); | 
 |     verifier.TestMemberIsDefined(data_channel.state); | 
 |     verifier.TestMemberIsNonNegative<uint32_t>(data_channel.messages_sent); | 
 |     verifier.TestMemberIsNonNegative<uint64_t>(data_channel.bytes_sent); | 
 |     verifier.TestMemberIsNonNegative<uint32_t>(data_channel.messages_received); | 
 |     verifier.TestMemberIsNonNegative<uint64_t>(data_channel.bytes_received); | 
 |     return verifier.ExpectAllMembersSuccessfullyTested(); | 
 |   } | 
 |  | 
 |   bool VerifyRTCIceCandidatePairStats( | 
 |       const RTCIceCandidatePairStats& candidate_pair, | 
 |       bool is_selected_pair) { | 
 |     RTCStatsVerifier verifier(report_.get(), &candidate_pair); | 
 |     verifier.TestMemberIsIDReference(candidate_pair.transport_id, | 
 |                                      RTCTransportStats::kType); | 
 |     verifier.TestMemberIsIDReference(candidate_pair.local_candidate_id, | 
 |                                      RTCLocalIceCandidateStats::kType); | 
 |     verifier.TestMemberIsIDReference(candidate_pair.remote_candidate_id, | 
 |                                      RTCRemoteIceCandidateStats::kType); | 
 |     verifier.TestMemberIsDefined(candidate_pair.state); | 
 |     verifier.TestMemberIsNonNegative<uint64_t>(candidate_pair.priority); | 
 |     verifier.TestMemberIsDefined(candidate_pair.nominated); | 
 |     verifier.TestMemberIsDefined(candidate_pair.writable); | 
 |     verifier.TestMemberIsNonNegative<uint64_t>(candidate_pair.packets_sent); | 
 |     verifier.TestMemberIsNonNegative<uint64_t>( | 
 |         candidate_pair.packets_discarded_on_send); | 
 |     verifier.TestMemberIsNonNegative<uint64_t>(candidate_pair.packets_received); | 
 |     verifier.TestMemberIsNonNegative<uint64_t>(candidate_pair.bytes_sent); | 
 |     verifier.TestMemberIsNonNegative<uint64_t>( | 
 |         candidate_pair.bytes_discarded_on_send); | 
 |     verifier.TestMemberIsNonNegative<uint64_t>(candidate_pair.bytes_received); | 
 |     verifier.TestMemberIsNonNegative<double>( | 
 |         candidate_pair.total_round_trip_time); | 
 |     verifier.TestMemberIsNonNegative<double>( | 
 |         candidate_pair.current_round_trip_time); | 
 |     if (is_selected_pair) { | 
 |       verifier.TestMemberIsNonNegative<double>( | 
 |           candidate_pair.available_outgoing_bitrate); | 
 |       // A pair should be nominated in order to be selected. | 
 |       EXPECT_TRUE(*candidate_pair.nominated); | 
 |     } else { | 
 |       verifier.TestMemberIsUndefined(candidate_pair.available_outgoing_bitrate); | 
 |     } | 
 |     verifier.TestMemberIsUndefined(candidate_pair.available_incoming_bitrate); | 
 |     verifier.TestMemberIsNonNegative<uint64_t>( | 
 |         candidate_pair.requests_received); | 
 |     verifier.TestMemberIsNonNegative<uint64_t>(candidate_pair.requests_sent); | 
 |     verifier.TestMemberIsNonNegative<uint64_t>( | 
 |         candidate_pair.responses_received); | 
 |     verifier.TestMemberIsNonNegative<uint64_t>(candidate_pair.responses_sent); | 
 |     verifier.TestMemberIsNonNegative<uint64_t>( | 
 |         candidate_pair.consent_requests_sent); | 
 |     verifier.TestMemberIsDefined(candidate_pair.last_packet_received_timestamp); | 
 |     verifier.TestMemberIsDefined(candidate_pair.last_packet_sent_timestamp); | 
 |  | 
 |     return verifier.ExpectAllMembersSuccessfullyTested(); | 
 |   } | 
 |  | 
 |   bool VerifyRTCIceCandidateStats(const RTCIceCandidateStats& candidate) { | 
 |     RTCStatsVerifier verifier(report_.get(), &candidate); | 
 |     verifier.TestMemberIsIDReference(candidate.transport_id, | 
 |                                      RTCTransportStats::kType); | 
 |     verifier.TestMemberIsDefined(candidate.is_remote); | 
 |     if (*candidate.is_remote) { | 
 |       verifier.TestMemberIsUndefined(candidate.network_type); | 
 |       verifier.TestMemberIsUndefined(candidate.network_adapter_type); | 
 |       verifier.TestMemberIsUndefined(candidate.vpn); | 
 |     } else { | 
 |       verifier.TestMemberIsDefined(candidate.network_type); | 
 |       verifier.TestMemberIsDefined(candidate.network_adapter_type); | 
 |       verifier.TestMemberIsDefined(candidate.vpn); | 
 |     } | 
 |     verifier.TestMemberIsDefined(candidate.ip); | 
 |     verifier.TestMemberIsDefined(candidate.address); | 
 |     verifier.TestMemberIsNonNegative<int32_t>(candidate.port); | 
 |     verifier.TestMemberIsDefined(candidate.protocol); | 
 |     verifier.TestMemberIsDefined(candidate.candidate_type); | 
 |     verifier.TestMemberIsNonNegative<int32_t>(candidate.priority); | 
 |     verifier.TestMemberIsUndefined(candidate.url); | 
 |     verifier.TestMemberIsUndefined(candidate.relay_protocol); | 
 |     verifier.TestMemberIsDefined(candidate.foundation); | 
 |     verifier.TestMemberIsUndefined(candidate.related_address); | 
 |     verifier.TestMemberIsUndefined(candidate.related_port); | 
 |     verifier.TestMemberIsDefined(candidate.username_fragment); | 
 |     verifier.TestMemberIsUndefined(candidate.tcp_type); | 
 |     return verifier.ExpectAllMembersSuccessfullyTested(); | 
 |   } | 
 |  | 
 |   bool VerifyRTCLocalIceCandidateStats( | 
 |       const RTCLocalIceCandidateStats& local_candidate) { | 
 |     return VerifyRTCIceCandidateStats(local_candidate); | 
 |   } | 
 |  | 
 |   bool VerifyRTCRemoteIceCandidateStats( | 
 |       const RTCRemoteIceCandidateStats& remote_candidate) { | 
 |     return VerifyRTCIceCandidateStats(remote_candidate); | 
 |   } | 
 |  | 
 |   bool DEPRECATED_VerifyRTCMediaStreamStats( | 
 |       const DEPRECATED_RTCMediaStreamStats& media_stream) { | 
 |     RTCStatsVerifier verifier(report_.get(), &media_stream); | 
 |     verifier.TestMemberIsDefined(media_stream.stream_identifier); | 
 |     verifier.TestMemberIsIDReference( | 
 |         media_stream.track_ids, DEPRECATED_RTCMediaStreamTrackStats::kType); | 
 |     return verifier.ExpectAllMembersSuccessfullyTested(); | 
 |   } | 
 |  | 
 |   bool VerLegacyifyRTCMediaStreamTrackStats( | 
 |       const DEPRECATED_RTCMediaStreamTrackStats& media_stream_track) { | 
 |     RTCStatsVerifier verifier(report_.get(), &media_stream_track); | 
 |     verifier.TestMemberIsDefined(media_stream_track.track_identifier); | 
 |     verifier.TestMemberIsDefined(media_stream_track.remote_source); | 
 |     verifier.TestMemberIsDefined(media_stream_track.ended); | 
 |     verifier.TestMemberIsDefined(media_stream_track.detached); | 
 |     verifier.TestMemberIsDefined(media_stream_track.kind); | 
 |     RTC_DCHECK(media_stream_track.remote_source.is_defined()); | 
 |     // Video or audio media stream track? | 
 |     if (*media_stream_track.kind == RTCMediaStreamTrackKind::kVideo) { | 
 |       // The type of the referenced media source depends on kind. | 
 |       if (*media_stream_track.remote_source) { | 
 |         verifier.TestMemberIsUndefined(media_stream_track.media_source_id); | 
 |         verifier.TestMemberIsNonNegative<double>( | 
 |             media_stream_track.jitter_buffer_delay); | 
 |         verifier.TestMemberIsNonNegative<uint64_t>( | 
 |             media_stream_track.jitter_buffer_emitted_count); | 
 |         verifier.TestMemberIsUndefined(media_stream_track.frames_sent); | 
 |         verifier.TestMemberIsUndefined(media_stream_track.huge_frames_sent); | 
 |         verifier.TestMemberIsNonNegative<uint32_t>( | 
 |             media_stream_track.frames_received); | 
 |         verifier.TestMemberIsNonNegative<uint32_t>( | 
 |             media_stream_track.frames_decoded); | 
 |         verifier.TestMemberIsNonNegative<uint32_t>( | 
 |             media_stream_track.frames_dropped); | 
 |       } else { | 
 |         verifier.TestMemberIsIDReference(media_stream_track.media_source_id, | 
 |                                          RTCVideoSourceStats::kType); | 
 |         // Local tracks have no jitter buffer. | 
 |         verifier.TestMemberIsUndefined(media_stream_track.jitter_buffer_delay); | 
 |         verifier.TestMemberIsUndefined( | 
 |             media_stream_track.jitter_buffer_emitted_count); | 
 |         verifier.TestMemberIsNonNegative<uint32_t>( | 
 |             media_stream_track.frames_sent); | 
 |         verifier.TestMemberIsNonNegative<uint32_t>( | 
 |             media_stream_track.huge_frames_sent); | 
 |         verifier.TestMemberIsUndefined(media_stream_track.frames_received); | 
 |         verifier.TestMemberIsUndefined(media_stream_track.frames_decoded); | 
 |         verifier.TestMemberIsUndefined(media_stream_track.frames_dropped); | 
 |       } | 
 |       // Video-only members | 
 |       verifier.TestMemberIsNonNegative<uint32_t>( | 
 |           media_stream_track.frame_width); | 
 |       verifier.TestMemberIsNonNegative<uint32_t>( | 
 |           media_stream_track.frame_height); | 
 |       // Audio-only members should be undefined | 
 |       verifier.TestMemberIsUndefined(media_stream_track.audio_level); | 
 |       verifier.TestMemberIsUndefined(media_stream_track.echo_return_loss); | 
 |       verifier.TestMemberIsUndefined( | 
 |           media_stream_track.echo_return_loss_enhancement); | 
 |       verifier.TestMemberIsUndefined(media_stream_track.total_audio_energy); | 
 |       verifier.TestMemberIsUndefined(media_stream_track.total_samples_duration); | 
 |       verifier.TestMemberIsUndefined(media_stream_track.total_samples_received); | 
 |       verifier.TestMemberIsUndefined(media_stream_track.concealed_samples); | 
 |       verifier.TestMemberIsUndefined( | 
 |           media_stream_track.silent_concealed_samples); | 
 |       verifier.TestMemberIsUndefined(media_stream_track.concealment_events); | 
 |       verifier.TestMemberIsUndefined( | 
 |           media_stream_track.inserted_samples_for_deceleration); | 
 |       verifier.TestMemberIsUndefined( | 
 |           media_stream_track.removed_samples_for_acceleration); | 
 |     } else { | 
 |       RTC_DCHECK_EQ(*media_stream_track.kind, RTCMediaStreamTrackKind::kAudio); | 
 |       // The type of the referenced media source depends on kind. | 
 |       if (*media_stream_track.remote_source) { | 
 |         // Remote tracks don't have media source stats. | 
 |         verifier.TestMemberIsUndefined(media_stream_track.media_source_id); | 
 |         verifier.TestMemberIsNonNegative<double>( | 
 |             media_stream_track.jitter_buffer_delay); | 
 |         verifier.TestMemberIsNonNegative<uint64_t>( | 
 |             media_stream_track.jitter_buffer_emitted_count); | 
 |         verifier.TestMemberIsPositive<double>(media_stream_track.audio_level); | 
 |         verifier.TestMemberIsPositive<double>( | 
 |             media_stream_track.total_audio_energy); | 
 |         verifier.TestMemberIsPositive<uint64_t>( | 
 |             media_stream_track.total_samples_received); | 
 |         verifier.TestMemberIsPositive<double>( | 
 |             media_stream_track.total_samples_duration); | 
 |         verifier.TestMemberIsNonNegative<uint64_t>( | 
 |             media_stream_track.concealed_samples); | 
 |         verifier.TestMemberIsNonNegative<uint64_t>( | 
 |             media_stream_track.silent_concealed_samples); | 
 |         verifier.TestMemberIsNonNegative<uint64_t>( | 
 |             media_stream_track.concealment_events); | 
 |         verifier.TestMemberIsNonNegative<uint64_t>( | 
 |             media_stream_track.inserted_samples_for_deceleration); | 
 |         verifier.TestMemberIsNonNegative<uint64_t>( | 
 |             media_stream_track.removed_samples_for_acceleration); | 
 |       } else { | 
 |         verifier.TestMemberIsIDReference(media_stream_track.media_source_id, | 
 |                                          RTCAudioSourceStats::kType); | 
 |         // Local audio tracks have no jitter buffer. | 
 |         verifier.TestMemberIsUndefined(media_stream_track.jitter_buffer_delay); | 
 |         verifier.TestMemberIsUndefined( | 
 |             media_stream_track.jitter_buffer_emitted_count); | 
 |         verifier.TestMemberIsUndefined(media_stream_track.audio_level); | 
 |         verifier.TestMemberIsUndefined(media_stream_track.total_audio_energy); | 
 |         verifier.TestMemberIsUndefined( | 
 |             media_stream_track.total_samples_received); | 
 |         verifier.TestMemberIsUndefined( | 
 |             media_stream_track.total_samples_duration); | 
 |         verifier.TestMemberIsUndefined(media_stream_track.concealed_samples); | 
 |         verifier.TestMemberIsUndefined( | 
 |             media_stream_track.silent_concealed_samples); | 
 |         verifier.TestMemberIsUndefined(media_stream_track.concealment_events); | 
 |         verifier.TestMemberIsUndefined( | 
 |             media_stream_track.inserted_samples_for_deceleration); | 
 |         verifier.TestMemberIsUndefined( | 
 |             media_stream_track.removed_samples_for_acceleration); | 
 |       } | 
 |       // Video-only members should be undefined | 
 |       verifier.TestMemberIsUndefined(media_stream_track.frame_width); | 
 |       verifier.TestMemberIsUndefined(media_stream_track.frame_height); | 
 |       verifier.TestMemberIsUndefined(media_stream_track.frames_sent); | 
 |       verifier.TestMemberIsUndefined(media_stream_track.huge_frames_sent); | 
 |       verifier.TestMemberIsUndefined(media_stream_track.frames_received); | 
 |       verifier.TestMemberIsUndefined(media_stream_track.frames_decoded); | 
 |       verifier.TestMemberIsUndefined(media_stream_track.frames_dropped); | 
 |       // Audio-only members | 
 |       // TODO(hbos): `echo_return_loss` and `echo_return_loss_enhancement` are | 
 |       // flaky on msan bot (sometimes defined, sometimes undefined). Should the | 
 |       // test run until available or is there a way to have it always be | 
 |       // defined? crbug.com/627816 | 
 |       verifier.MarkMemberTested(media_stream_track.echo_return_loss, true); | 
 |       verifier.MarkMemberTested(media_stream_track.echo_return_loss_enhancement, | 
 |                                 true); | 
 |     } | 
 |     return verifier.ExpectAllMembersSuccessfullyTested(); | 
 |   } | 
 |  | 
 |   bool VerifyRTCPeerConnectionStats( | 
 |       const RTCPeerConnectionStats& peer_connection) { | 
 |     RTCStatsVerifier verifier(report_.get(), &peer_connection); | 
 |     verifier.TestMemberIsNonNegative<uint32_t>( | 
 |         peer_connection.data_channels_opened); | 
 |     verifier.TestMemberIsNonNegative<uint32_t>( | 
 |         peer_connection.data_channels_closed); | 
 |     return verifier.ExpectAllMembersSuccessfullyTested(); | 
 |   } | 
 |  | 
 |   void VerifyRTCRTPStreamStats(const RTCRTPStreamStats& stream, | 
 |                                RTCStatsVerifier& verifier) { | 
 |     verifier.TestMemberIsDefined(stream.ssrc); | 
 |     verifier.TestMemberIsDefined(stream.kind); | 
 |     // Some legacy metrics are only defined for some of the RTP types in the | 
 |     // hierarcy. | 
 |     if (stream.type() == RTCInboundRTPStreamStats::kType || | 
 |         stream.type() == RTCOutboundRTPStreamStats::kType) { | 
 |       verifier.TestMemberIsDefined(stream.media_type); | 
 |       verifier.TestMemberIsIDReference( | 
 |           stream.track_id, DEPRECATED_RTCMediaStreamTrackStats::kType); | 
 |     } else { | 
 |       verifier.TestMemberIsUndefined(stream.media_type); | 
 |       verifier.TestMemberIsUndefined(stream.track_id); | 
 |     } | 
 |     verifier.TestMemberIsIDReference(stream.transport_id, | 
 |                                      RTCTransportStats::kType); | 
 |     verifier.TestMemberIsIDReference(stream.codec_id, RTCCodecStats::kType); | 
 |   } | 
 |  | 
 |   void VerifyRTCSentRTPStreamStats(const RTCSentRtpStreamStats& sent_stream, | 
 |                                    RTCStatsVerifier& verifier) { | 
 |     VerifyRTCRTPStreamStats(sent_stream, verifier); | 
 |     verifier.TestMemberIsDefined(sent_stream.packets_sent); | 
 |     verifier.TestMemberIsDefined(sent_stream.bytes_sent); | 
 |   } | 
 |  | 
 |   bool VerifyRTCInboundRTPStreamStats( | 
 |       const RTCInboundRTPStreamStats& inbound_stream) { | 
 |     RTCStatsVerifier verifier(report_.get(), &inbound_stream); | 
 |     VerifyRTCReceivedRtpStreamStats(inbound_stream, verifier); | 
 |     verifier.TestMemberIsOptionalIDReference( | 
 |         inbound_stream.remote_id, RTCRemoteOutboundRtpStreamStats::kType); | 
 |     verifier.TestMemberIsDefined(inbound_stream.mid); | 
 |     verifier.TestMemberIsDefined(inbound_stream.track_identifier); | 
 |     if (inbound_stream.kind.is_defined() && *inbound_stream.kind == "video") { | 
 |       verifier.TestMemberIsNonNegative<uint64_t>(inbound_stream.qp_sum); | 
 |       verifier.TestMemberIsDefined(inbound_stream.decoder_implementation); | 
 |       verifier.TestMemberIsDefined(inbound_stream.power_efficient_decoder); | 
 |       EXPECT_EQ(inbound_stream.power_efficient_decoder.exposure_criteria(), | 
 |                 StatExposureCriteria::kHardwareCapability); | 
 |     } else { | 
 |       verifier.TestMemberIsUndefined(inbound_stream.qp_sum); | 
 |       verifier.TestMemberIsUndefined(inbound_stream.decoder_implementation); | 
 |       verifier.TestMemberIsUndefined(inbound_stream.power_efficient_decoder); | 
 |       EXPECT_EQ(inbound_stream.power_efficient_decoder.exposure_criteria(), | 
 |                 StatExposureCriteria::kHardwareCapability); | 
 |     } | 
 |     verifier.TestMemberIsNonNegative<uint32_t>(inbound_stream.packets_received); | 
 |     if (inbound_stream.kind.is_defined() && *inbound_stream.kind == "audio") { | 
 |       verifier.TestMemberIsNonNegative<uint64_t>( | 
 |           inbound_stream.packets_discarded); | 
 |       verifier.TestMemberIsNonNegative<uint64_t>( | 
 |           inbound_stream.fec_packets_received); | 
 |       verifier.TestMemberIsNonNegative<uint64_t>( | 
 |           inbound_stream.fec_packets_discarded); | 
 |     } else { | 
 |       verifier.TestMemberIsUndefined(inbound_stream.packets_discarded); | 
 |       verifier.TestMemberIsUndefined(inbound_stream.fec_packets_received); | 
 |       verifier.TestMemberIsUndefined(inbound_stream.fec_packets_discarded); | 
 |     } | 
 |     verifier.TestMemberIsNonNegative<uint64_t>(inbound_stream.bytes_received); | 
 |     verifier.TestMemberIsNonNegative<uint64_t>( | 
 |         inbound_stream.header_bytes_received); | 
 |     verifier.TestMemberIsDefined(inbound_stream.last_packet_received_timestamp); | 
 |     if (inbound_stream.frames_received.ValueOrDefault(0) > 0) { | 
 |       verifier.TestMemberIsNonNegative<uint32_t>(inbound_stream.frame_width); | 
 |       verifier.TestMemberIsNonNegative<uint32_t>(inbound_stream.frame_height); | 
 |     } else { | 
 |       verifier.TestMemberIsUndefined(inbound_stream.frame_width); | 
 |       verifier.TestMemberIsUndefined(inbound_stream.frame_height); | 
 |     } | 
 |     if (inbound_stream.frames_per_second.is_defined()) { | 
 |       verifier.TestMemberIsNonNegative<double>( | 
 |           inbound_stream.frames_per_second); | 
 |     } else { | 
 |       verifier.TestMemberIsUndefined(inbound_stream.frames_per_second); | 
 |     } | 
 |     verifier.TestMemberIsNonNegative<double>( | 
 |         inbound_stream.jitter_buffer_delay); | 
 |     verifier.TestMemberIsNonNegative<uint64_t>( | 
 |         inbound_stream.jitter_buffer_emitted_count); | 
 |     if (inbound_stream.kind.is_defined() && *inbound_stream.kind == "video") { | 
 |       verifier.TestMemberIsUndefined(inbound_stream.total_samples_received); | 
 |       verifier.TestMemberIsUndefined(inbound_stream.concealed_samples); | 
 |       verifier.TestMemberIsUndefined(inbound_stream.silent_concealed_samples); | 
 |       verifier.TestMemberIsUndefined(inbound_stream.concealment_events); | 
 |       verifier.TestMemberIsUndefined( | 
 |           inbound_stream.inserted_samples_for_deceleration); | 
 |       verifier.TestMemberIsUndefined( | 
 |           inbound_stream.removed_samples_for_acceleration); | 
 |       verifier.TestMemberIsUndefined(inbound_stream.jitter_buffer_target_delay); | 
 |       verifier.TestMemberIsUndefined( | 
 |           inbound_stream.jitter_buffer_minimum_delay); | 
 |       verifier.TestMemberIsUndefined(inbound_stream.audio_level); | 
 |       verifier.TestMemberIsUndefined(inbound_stream.total_audio_energy); | 
 |       verifier.TestMemberIsUndefined(inbound_stream.total_samples_duration); | 
 |       verifier.TestMemberIsNonNegative<int32_t>(inbound_stream.frames_received); | 
 |       verifier.TestMemberIsNonNegative<uint32_t>(inbound_stream.fir_count); | 
 |       verifier.TestMemberIsNonNegative<uint32_t>(inbound_stream.pli_count); | 
 |       verifier.TestMemberIsNonNegative<uint32_t>(inbound_stream.nack_count); | 
 |     } else { | 
 |       verifier.TestMemberIsUndefined(inbound_stream.fir_count); | 
 |       verifier.TestMemberIsUndefined(inbound_stream.pli_count); | 
 |       verifier.TestMemberIsUndefined(inbound_stream.nack_count); | 
 |       verifier.TestMemberIsPositive<uint64_t>( | 
 |           inbound_stream.total_samples_received); | 
 |       verifier.TestMemberIsNonNegative<uint64_t>( | 
 |           inbound_stream.concealed_samples); | 
 |       verifier.TestMemberIsNonNegative<uint64_t>( | 
 |           inbound_stream.silent_concealed_samples); | 
 |       verifier.TestMemberIsNonNegative<uint64_t>( | 
 |           inbound_stream.concealment_events); | 
 |       verifier.TestMemberIsNonNegative<uint64_t>( | 
 |           inbound_stream.inserted_samples_for_deceleration); | 
 |       verifier.TestMemberIsNonNegative<uint64_t>( | 
 |           inbound_stream.removed_samples_for_acceleration); | 
 |       verifier.TestMemberIsNonNegative<double>( | 
 |           inbound_stream.jitter_buffer_target_delay); | 
 |       verifier.TestMemberIsNonNegative<double>( | 
 |           inbound_stream.jitter_buffer_minimum_delay); | 
 |       verifier.TestMemberIsPositive<double>(inbound_stream.audio_level); | 
 |       verifier.TestMemberIsPositive<double>(inbound_stream.total_audio_energy); | 
 |       verifier.TestMemberIsPositive<double>( | 
 |           inbound_stream.total_samples_duration); | 
 |       verifier.TestMemberIsUndefined(inbound_stream.frames_received); | 
 |     } | 
 |     // Test runtime too short to get an estimate (at least two RTCP sender | 
 |     // reports need to be received). | 
 |     verifier.MarkMemberTested(inbound_stream.estimated_playout_timestamp, true); | 
 |     if (inbound_stream.kind.is_defined() && *inbound_stream.kind == "video") { | 
 |       verifier.TestMemberIsDefined(inbound_stream.frames_decoded); | 
 |       verifier.TestMemberIsDefined(inbound_stream.key_frames_decoded); | 
 |       verifier.TestMemberIsNonNegative<uint32_t>(inbound_stream.frames_dropped); | 
 |       verifier.TestMemberIsNonNegative<double>( | 
 |           inbound_stream.total_decode_time); | 
 |       verifier.TestMemberIsNonNegative<double>( | 
 |           inbound_stream.total_processing_delay); | 
 |       verifier.TestMemberIsNonNegative<double>( | 
 |           inbound_stream.total_assembly_time); | 
 |       verifier.TestMemberIsDefined( | 
 |           inbound_stream.frames_assembled_from_multiple_packets); | 
 |       verifier.TestMemberIsNonNegative<double>( | 
 |           inbound_stream.total_inter_frame_delay); | 
 |       verifier.TestMemberIsNonNegative<double>( | 
 |           inbound_stream.total_squared_inter_frame_delay); | 
 |       verifier.TestMemberIsNonNegative<uint32_t>(inbound_stream.pause_count); | 
 |       verifier.TestMemberIsNonNegative<double>( | 
 |           inbound_stream.total_pauses_duration); | 
 |       verifier.TestMemberIsNonNegative<uint32_t>(inbound_stream.freeze_count); | 
 |       verifier.TestMemberIsNonNegative<double>( | 
 |           inbound_stream.total_freezes_duration); | 
 |       // The integration test is not set up to test screen share; don't require | 
 |       // this to be present. | 
 |       verifier.MarkMemberTested(inbound_stream.content_type, true); | 
 |       verifier.TestMemberIsUndefined(inbound_stream.jitter_buffer_flushes); | 
 |       verifier.TestMemberIsUndefined( | 
 |           inbound_stream.delayed_packet_outage_samples); | 
 |       verifier.TestMemberIsUndefined( | 
 |           inbound_stream.relative_packet_arrival_delay); | 
 |       verifier.TestMemberIsUndefined(inbound_stream.interruption_count); | 
 |       verifier.TestMemberIsUndefined( | 
 |           inbound_stream.total_interruption_duration); | 
 |       verifier.TestMemberIsNonNegative<double>( | 
 |           inbound_stream.min_playout_delay); | 
 |       verifier.TestMemberIsDefined(inbound_stream.goog_timing_frame_info); | 
 |     } else { | 
 |       verifier.TestMemberIsUndefined(inbound_stream.frames_decoded); | 
 |       verifier.TestMemberIsUndefined(inbound_stream.key_frames_decoded); | 
 |       verifier.TestMemberIsUndefined(inbound_stream.frames_dropped); | 
 |       verifier.TestMemberIsUndefined(inbound_stream.total_decode_time); | 
 |       verifier.TestMemberIsUndefined(inbound_stream.total_processing_delay); | 
 |       verifier.TestMemberIsUndefined(inbound_stream.total_assembly_time); | 
 |       verifier.TestMemberIsUndefined( | 
 |           inbound_stream.frames_assembled_from_multiple_packets); | 
 |       verifier.TestMemberIsUndefined(inbound_stream.total_inter_frame_delay); | 
 |       verifier.TestMemberIsUndefined( | 
 |           inbound_stream.total_squared_inter_frame_delay); | 
 |       verifier.TestMemberIsUndefined(inbound_stream.pause_count); | 
 |       verifier.TestMemberIsUndefined(inbound_stream.total_pauses_duration); | 
 |       verifier.TestMemberIsUndefined(inbound_stream.freeze_count); | 
 |       verifier.TestMemberIsUndefined(inbound_stream.total_freezes_duration); | 
 |       verifier.TestMemberIsUndefined(inbound_stream.content_type); | 
 |       verifier.TestMemberIsNonNegative<uint64_t>( | 
 |           inbound_stream.jitter_buffer_flushes); | 
 |       verifier.TestMemberIsNonNegative<uint64_t>( | 
 |           inbound_stream.delayed_packet_outage_samples); | 
 |       verifier.TestMemberIsNonNegative<double>( | 
 |           inbound_stream.relative_packet_arrival_delay); | 
 |       verifier.TestMemberIsNonNegative<uint32_t>( | 
 |           inbound_stream.interruption_count); | 
 |       verifier.TestMemberIsNonNegative<double>( | 
 |           inbound_stream.total_interruption_duration); | 
 |       verifier.TestMemberIsUndefined(inbound_stream.min_playout_delay); | 
 |       verifier.TestMemberIsUndefined(inbound_stream.goog_timing_frame_info); | 
 |     } | 
 |     return verifier.ExpectAllMembersSuccessfullyTested(); | 
 |   } | 
 |  | 
 |   bool VerifyRTCOutboundRTPStreamStats( | 
 |       const RTCOutboundRTPStreamStats& outbound_stream) { | 
 |     RTCStatsVerifier verifier(report_.get(), &outbound_stream); | 
 |     VerifyRTCRTPStreamStats(outbound_stream, verifier); | 
 |     verifier.TestMemberIsDefined(outbound_stream.mid); | 
 |     verifier.TestMemberIsDefined(outbound_stream.active); | 
 |     if (outbound_stream.kind.is_defined() && *outbound_stream.kind == "video") { | 
 |       verifier.TestMemberIsIDReference(outbound_stream.media_source_id, | 
 |                                        RTCVideoSourceStats::kType); | 
 |       verifier.TestMemberIsNonNegative<uint32_t>(outbound_stream.fir_count); | 
 |       verifier.TestMemberIsNonNegative<uint32_t>(outbound_stream.pli_count); | 
 |       if (*outbound_stream.frames_encoded > 0) { | 
 |         verifier.TestMemberIsNonNegative<uint64_t>(outbound_stream.qp_sum); | 
 |       } else { | 
 |         verifier.TestMemberIsUndefined(outbound_stream.qp_sum); | 
 |       } | 
 |     } else { | 
 |       verifier.TestMemberIsUndefined(outbound_stream.fir_count); | 
 |       verifier.TestMemberIsUndefined(outbound_stream.pli_count); | 
 |       verifier.TestMemberIsIDReference(outbound_stream.media_source_id, | 
 |                                        RTCAudioSourceStats::kType); | 
 |       verifier.TestMemberIsUndefined(outbound_stream.qp_sum); | 
 |     } | 
 |     verifier.TestMemberIsNonNegative<uint32_t>(outbound_stream.nack_count); | 
 |     verifier.TestMemberIsOptionalIDReference( | 
 |         outbound_stream.remote_id, RTCRemoteInboundRtpStreamStats::kType); | 
 |     verifier.TestMemberIsNonNegative<uint32_t>(outbound_stream.packets_sent); | 
 |     verifier.TestMemberIsNonNegative<double>( | 
 |         outbound_stream.total_packet_send_delay); | 
 |     verifier.TestMemberIsNonNegative<uint64_t>( | 
 |         outbound_stream.retransmitted_packets_sent); | 
 |     verifier.TestMemberIsNonNegative<uint64_t>(outbound_stream.bytes_sent); | 
 |     verifier.TestMemberIsNonNegative<uint64_t>( | 
 |         outbound_stream.header_bytes_sent); | 
 |     verifier.TestMemberIsNonNegative<uint64_t>( | 
 |         outbound_stream.retransmitted_bytes_sent); | 
 |     verifier.TestMemberIsNonNegative<double>(outbound_stream.target_bitrate); | 
 |     if (outbound_stream.kind.is_defined() && *outbound_stream.kind == "video") { | 
 |       verifier.TestMemberIsDefined(outbound_stream.frames_encoded); | 
 |       verifier.TestMemberIsDefined(outbound_stream.key_frames_encoded); | 
 |       verifier.TestMemberIsNonNegative<double>( | 
 |           outbound_stream.total_encode_time); | 
 |       verifier.TestMemberIsNonNegative<uint64_t>( | 
 |           outbound_stream.total_encoded_bytes_target); | 
 |       verifier.TestMemberIsDefined(outbound_stream.quality_limitation_reason); | 
 |       verifier.TestMemberIsDefined( | 
 |           outbound_stream.quality_limitation_durations); | 
 |       verifier.TestMemberIsNonNegative<uint32_t>( | 
 |           outbound_stream.quality_limitation_resolution_changes); | 
 |       // The integration test is not set up to test screen share; don't require | 
 |       // this to be present. | 
 |       verifier.MarkMemberTested(outbound_stream.content_type, true); | 
 |       verifier.TestMemberIsDefined(outbound_stream.encoder_implementation); | 
 |       verifier.TestMemberIsDefined(outbound_stream.power_efficient_encoder); | 
 |       EXPECT_EQ(outbound_stream.power_efficient_encoder.exposure_criteria(), | 
 |                 StatExposureCriteria::kHardwareCapability); | 
 |       // Unless an implementation-specific amount of time has passed and at | 
 |       // least one frame has been encoded, undefined is reported. Because it | 
 |       // is hard to tell what is the case here, we treat FPS as optional. | 
 |       // TODO(hbos): Update the tests to run until all implemented metrics | 
 |       // should be populated. | 
 |       if (outbound_stream.frames_per_second.is_defined()) { | 
 |         verifier.TestMemberIsNonNegative<double>( | 
 |             outbound_stream.frames_per_second); | 
 |       } else { | 
 |         verifier.TestMemberIsUndefined(outbound_stream.frames_per_second); | 
 |       } | 
 |       verifier.TestMemberIsNonNegative<uint32_t>(outbound_stream.frame_height); | 
 |       verifier.TestMemberIsNonNegative<uint32_t>(outbound_stream.frame_width); | 
 |       verifier.TestMemberIsNonNegative<uint32_t>(outbound_stream.frames_sent); | 
 |       verifier.TestMemberIsNonNegative<uint32_t>( | 
 |           outbound_stream.huge_frames_sent); | 
 |       verifier.MarkMemberTested(outbound_stream.rid, true); | 
 |     } else { | 
 |       verifier.TestMemberIsUndefined(outbound_stream.frames_encoded); | 
 |       verifier.TestMemberIsUndefined(outbound_stream.key_frames_encoded); | 
 |       verifier.TestMemberIsUndefined(outbound_stream.total_encode_time); | 
 |       verifier.TestMemberIsUndefined( | 
 |           outbound_stream.total_encoded_bytes_target); | 
 |       verifier.TestMemberIsUndefined(outbound_stream.quality_limitation_reason); | 
 |       verifier.TestMemberIsUndefined( | 
 |           outbound_stream.quality_limitation_durations); | 
 |       verifier.TestMemberIsUndefined( | 
 |           outbound_stream.quality_limitation_resolution_changes); | 
 |       verifier.TestMemberIsUndefined(outbound_stream.content_type); | 
 |       // TODO(hbos): Implement for audio as well. | 
 |       verifier.TestMemberIsUndefined(outbound_stream.encoder_implementation); | 
 |       verifier.TestMemberIsUndefined(outbound_stream.power_efficient_encoder); | 
 |       verifier.TestMemberIsUndefined(outbound_stream.rid); | 
 |       verifier.TestMemberIsUndefined(outbound_stream.frames_per_second); | 
 |       verifier.TestMemberIsUndefined(outbound_stream.frame_height); | 
 |       verifier.TestMemberIsUndefined(outbound_stream.frame_width); | 
 |       verifier.TestMemberIsUndefined(outbound_stream.frames_sent); | 
 |       verifier.TestMemberIsUndefined(outbound_stream.huge_frames_sent); | 
 |     } | 
 |     return verifier.ExpectAllMembersSuccessfullyTested(); | 
 |   } | 
 |  | 
 |   void VerifyRTCReceivedRtpStreamStats( | 
 |       const RTCReceivedRtpStreamStats& received_rtp, | 
 |       RTCStatsVerifier& verifier) { | 
 |     VerifyRTCRTPStreamStats(received_rtp, verifier); | 
 |     verifier.TestMemberIsNonNegative<double>(received_rtp.jitter); | 
 |     verifier.TestMemberIsDefined(received_rtp.packets_lost); | 
 |   } | 
 |  | 
 |   bool VerifyRTCRemoteInboundRtpStreamStats( | 
 |       const RTCRemoteInboundRtpStreamStats& remote_inbound_stream) { | 
 |     RTCStatsVerifier verifier(report_.get(), &remote_inbound_stream); | 
 |     VerifyRTCReceivedRtpStreamStats(remote_inbound_stream, verifier); | 
 |     verifier.TestMemberIsDefined(remote_inbound_stream.fraction_lost); | 
 |     verifier.TestMemberIsIDReference(remote_inbound_stream.local_id, | 
 |                                      RTCOutboundRTPStreamStats::kType); | 
 |     verifier.TestMemberIsNonNegative<double>( | 
 |         remote_inbound_stream.round_trip_time); | 
 |     verifier.TestMemberIsNonNegative<double>( | 
 |         remote_inbound_stream.total_round_trip_time); | 
 |     verifier.TestMemberIsNonNegative<int32_t>( | 
 |         remote_inbound_stream.round_trip_time_measurements); | 
 |     return verifier.ExpectAllMembersSuccessfullyTested(); | 
 |   } | 
 |  | 
 |   bool VerifyRTCRemoteOutboundRTPStreamStats( | 
 |       const RTCRemoteOutboundRtpStreamStats& remote_outbound_stream) { | 
 |     RTCStatsVerifier verifier(report_.get(), &remote_outbound_stream); | 
 |     VerifyRTCRTPStreamStats(remote_outbound_stream, verifier); | 
 |     VerifyRTCSentRTPStreamStats(remote_outbound_stream, verifier); | 
 |     verifier.TestMemberIsIDReference(remote_outbound_stream.local_id, | 
 |                                      RTCOutboundRTPStreamStats::kType); | 
 |     verifier.TestMemberIsNonNegative<double>( | 
 |         remote_outbound_stream.remote_timestamp); | 
 |     verifier.TestMemberIsDefined(remote_outbound_stream.reports_sent); | 
 |     return verifier.ExpectAllMembersSuccessfullyTested(); | 
 |   } | 
 |  | 
 |   void VerifyRTCMediaSourceStats(const RTCMediaSourceStats& media_source, | 
 |                                  RTCStatsVerifier* verifier) { | 
 |     verifier->TestMemberIsDefined(media_source.track_identifier); | 
 |     verifier->TestMemberIsDefined(media_source.kind); | 
 |     if (media_source.kind.is_defined()) { | 
 |       EXPECT_TRUE((*media_source.kind == "audio" && | 
 |                    media_source.type() == RTCAudioSourceStats::kType) || | 
 |                   (*media_source.kind == "video" && | 
 |                    media_source.type() == RTCVideoSourceStats::kType)); | 
 |     } | 
 |   } | 
 |  | 
 |   bool VerifyRTCAudioSourceStats(const RTCAudioSourceStats& audio_source) { | 
 |     RTCStatsVerifier verifier(report_.get(), &audio_source); | 
 |     VerifyRTCMediaSourceStats(audio_source, &verifier); | 
 |     // Audio level, unlike audio energy, only gets updated at a certain | 
 |     // frequency, so we don't require that one to be positive to avoid a race | 
 |     // (https://crbug.com/webrtc/10962). | 
 |     verifier.TestMemberIsNonNegative<double>(audio_source.audio_level); | 
 |     verifier.TestMemberIsPositive<double>(audio_source.total_audio_energy); | 
 |     verifier.TestMemberIsPositive<double>(audio_source.total_samples_duration); | 
 |     // TODO(hbos): `echo_return_loss` and `echo_return_loss_enhancement` are | 
 |     // flaky on msan bot (sometimes defined, sometimes undefined). Should the | 
 |     // test run until available or is there a way to have it always be | 
 |     // defined? crbug.com/627816 | 
 |     verifier.MarkMemberTested(audio_source.echo_return_loss, true); | 
 |     verifier.MarkMemberTested(audio_source.echo_return_loss_enhancement, true); | 
 |     return verifier.ExpectAllMembersSuccessfullyTested(); | 
 |   } | 
 |  | 
 |   bool VerifyRTCVideoSourceStats(const RTCVideoSourceStats& video_source) { | 
 |     RTCStatsVerifier verifier(report_.get(), &video_source); | 
 |     VerifyRTCMediaSourceStats(video_source, &verifier); | 
 |     // TODO(hbos): This integration test uses fakes that doesn't support | 
 |     // VideoTrackSourceInterface::Stats. When this is fixed we should | 
 |     // TestMemberIsNonNegative<uint32_t>() for `width` and `height` instead to | 
 |     // reflect real code. | 
 |     verifier.TestMemberIsUndefined(video_source.width); | 
 |     verifier.TestMemberIsUndefined(video_source.height); | 
 |     verifier.TestMemberIsNonNegative<uint32_t>(video_source.frames); | 
 |     verifier.TestMemberIsNonNegative<double>(video_source.frames_per_second); | 
 |     return verifier.ExpectAllMembersSuccessfullyTested(); | 
 |   } | 
 |  | 
 |   bool VerifyRTCTransportStats(const RTCTransportStats& transport) { | 
 |     RTCStatsVerifier verifier(report_.get(), &transport); | 
 |     verifier.TestMemberIsNonNegative<uint64_t>(transport.bytes_sent); | 
 |     verifier.TestMemberIsNonNegative<uint64_t>(transport.packets_sent); | 
 |     verifier.TestMemberIsNonNegative<uint64_t>(transport.bytes_received); | 
 |     verifier.TestMemberIsNonNegative<uint64_t>(transport.packets_received); | 
 |     verifier.TestMemberIsOptionalIDReference(transport.rtcp_transport_stats_id, | 
 |                                              RTCTransportStats::kType); | 
 |     verifier.TestMemberIsDefined(transport.dtls_state); | 
 |     verifier.TestMemberIsIDReference(transport.selected_candidate_pair_id, | 
 |                                      RTCIceCandidatePairStats::kType); | 
 |     verifier.TestMemberIsIDReference(transport.local_certificate_id, | 
 |                                      RTCCertificateStats::kType); | 
 |     verifier.TestMemberIsIDReference(transport.remote_certificate_id, | 
 |                                      RTCCertificateStats::kType); | 
 |     verifier.TestMemberIsDefined(transport.tls_version); | 
 |     verifier.TestMemberIsDefined(transport.dtls_cipher); | 
 |     verifier.TestMemberIsDefined(transport.dtls_role); | 
 |     verifier.TestMemberIsDefined(transport.srtp_cipher); | 
 |     verifier.TestMemberIsPositive<uint32_t>( | 
 |         transport.selected_candidate_pair_changes); | 
 |     verifier.TestMemberIsDefined(transport.ice_role); | 
 |     verifier.TestMemberIsDefined(transport.ice_local_username_fragment); | 
 |     verifier.TestMemberIsDefined(transport.ice_state); | 
 |     return verifier.ExpectAllMembersSuccessfullyTested(); | 
 |   } | 
 |  | 
 |  private: | 
 |   rtc::scoped_refptr<const RTCStatsReport> report_; | 
 | }; | 
 |  | 
 | #ifdef WEBRTC_HAVE_SCTP | 
 | TEST_F(RTCStatsIntegrationTest, GetStatsFromCaller) { | 
 |   StartCall(); | 
 |  | 
 |   rtc::scoped_refptr<const RTCStatsReport> report = GetStatsFromCaller(); | 
 |   RTCStatsReportVerifier(report.get()).VerifyReport({}); | 
 |  | 
 | #if RTC_TRACE_EVENTS_ENABLED | 
 |   EXPECT_EQ(report->ToJson(), RTCStatsReportTraceListener::last_trace()); | 
 | #endif | 
 | } | 
 |  | 
 | TEST_F(RTCStatsIntegrationTest, GetStatsFromCallee) { | 
 |   StartCall(); | 
 |  | 
 |   rtc::scoped_refptr<const RTCStatsReport> report = GetStatsFromCallee(); | 
 |   RTCStatsReportVerifier(report.get()).VerifyReport({}); | 
 |  | 
 | #if RTC_TRACE_EVENTS_ENABLED | 
 |   EXPECT_EQ(report->ToJson(), RTCStatsReportTraceListener::last_trace()); | 
 | #endif | 
 | } | 
 |  | 
 | // These tests exercise the integration of the stats selection algorithm inside | 
 | // of PeerConnection. See rtcstatstraveral_unittest.cc for more detailed stats | 
 | // traversal tests on particular stats graphs. | 
 | TEST_F(RTCStatsIntegrationTest, GetStatsWithSenderSelector) { | 
 |   StartCall(); | 
 |   ASSERT_FALSE(caller_->pc()->GetSenders().empty()); | 
 |   rtc::scoped_refptr<const RTCStatsReport> report = | 
 |       GetStatsFromCaller(caller_->pc()->GetSenders()[0]); | 
 |   std::vector<const char*> allowed_missing_stats = { | 
 |       // TODO(hbos): Include RTC[Audio/Video]ReceiverStats when implemented. | 
 |       // TODO(hbos): Include RTCRemoteOutboundRtpStreamStats when implemented. | 
 |       // TODO(hbos): Include RTCRtpContributingSourceStats when implemented. | 
 |       RTCInboundRTPStreamStats::kType, | 
 |       RTCPeerConnectionStats::kType, | 
 |       DEPRECATED_RTCMediaStreamStats::kType, | 
 |       RTCDataChannelStats::kType, | 
 |   }; | 
 |   RTCStatsReportVerifier(report.get()).VerifyReport(allowed_missing_stats); | 
 |   EXPECT_TRUE(report->size()); | 
 | } | 
 |  | 
 | TEST_F(RTCStatsIntegrationTest, GetStatsWithReceiverSelector) { | 
 |   StartCall(); | 
 |  | 
 |   ASSERT_FALSE(caller_->pc()->GetReceivers().empty()); | 
 |   rtc::scoped_refptr<const RTCStatsReport> report = | 
 |       GetStatsFromCaller(caller_->pc()->GetReceivers()[0]); | 
 |   std::vector<const char*> allowed_missing_stats = { | 
 |       // TODO(hbos): Include RTC[Audio/Video]SenderStats when implemented. | 
 |       // TODO(hbos): Include RTCRemoteInboundRtpStreamStats when implemented. | 
 |       // TODO(hbos): Include RTCRtpContributingSourceStats when implemented. | 
 |       RTCOutboundRTPStreamStats::kType, | 
 |       RTCPeerConnectionStats::kType, | 
 |       DEPRECATED_RTCMediaStreamStats::kType, | 
 |       RTCDataChannelStats::kType, | 
 |   }; | 
 |   RTCStatsReportVerifier(report.get()).VerifyReport(allowed_missing_stats); | 
 |   EXPECT_TRUE(report->size()); | 
 | } | 
 |  | 
 | TEST_F(RTCStatsIntegrationTest, GetStatsWithInvalidSenderSelector) { | 
 |   StartCall(); | 
 |  | 
 |   ASSERT_FALSE(callee_->pc()->GetSenders().empty()); | 
 |   // The selector is invalid for the caller because it belongs to the callee. | 
 |   auto invalid_selector = callee_->pc()->GetSenders()[0]; | 
 |   rtc::scoped_refptr<const RTCStatsReport> report = | 
 |       GetStatsFromCaller(invalid_selector); | 
 |   EXPECT_FALSE(report->size()); | 
 | } | 
 |  | 
 | TEST_F(RTCStatsIntegrationTest, GetStatsWithInvalidReceiverSelector) { | 
 |   StartCall(); | 
 |  | 
 |   ASSERT_FALSE(callee_->pc()->GetReceivers().empty()); | 
 |   // The selector is invalid for the caller because it belongs to the callee. | 
 |   auto invalid_selector = callee_->pc()->GetReceivers()[0]; | 
 |   rtc::scoped_refptr<const RTCStatsReport> report = | 
 |       GetStatsFromCaller(invalid_selector); | 
 |   EXPECT_FALSE(report->size()); | 
 | } | 
 |  | 
 | // TODO(bugs.webrtc.org/10041) For now this is equivalent to the following | 
 | // test GetsStatsWhileClosingPeerConnection, because pc() is closed by | 
 | // PeerConnectionTestWrapper. See: bugs.webrtc.org/9847 | 
 | TEST_F(RTCStatsIntegrationTest, | 
 |        DISABLED_GetStatsWhileDestroyingPeerConnection) { | 
 |   StartCall(); | 
 |  | 
 |   rtc::scoped_refptr<RTCStatsObtainer> stats_obtainer = | 
 |       RTCStatsObtainer::Create(); | 
 |   caller_->pc()->GetStats(stats_obtainer.get()); | 
 |   // This will destroy the peer connection. | 
 |   caller_ = nullptr; | 
 |   // Any pending stats requests should have completed in the act of destroying | 
 |   // the peer connection. | 
 |   ASSERT_TRUE(stats_obtainer->report()); | 
 | #if RTC_TRACE_EVENTS_ENABLED | 
 |   EXPECT_EQ(stats_obtainer->report()->ToJson(), | 
 |             RTCStatsReportTraceListener::last_trace()); | 
 | #endif | 
 | } | 
 |  | 
 | TEST_F(RTCStatsIntegrationTest, GetsStatsWhileClosingPeerConnection) { | 
 |   StartCall(); | 
 |  | 
 |   rtc::scoped_refptr<RTCStatsObtainer> stats_obtainer = | 
 |       RTCStatsObtainer::Create(); | 
 |   caller_->pc()->GetStats(stats_obtainer.get()); | 
 |   caller_->pc()->Close(); | 
 |  | 
 |   ASSERT_TRUE(stats_obtainer->report()); | 
 | #if RTC_TRACE_EVENTS_ENABLED | 
 |   EXPECT_EQ(stats_obtainer->report()->ToJson(), | 
 |             RTCStatsReportTraceListener::last_trace()); | 
 | #endif | 
 | } | 
 |  | 
 | // GetStatsReferencedIds() is optimized to recognize what is or isn't a | 
 | // referenced ID based on dictionary type information and knowing what members | 
 | // are used as references, as opposed to iterating all members to find the ones | 
 | // with the "Id" or "Ids" suffix. As such, GetStatsReferencedIds() is tested as | 
 | // an integration test instead of a unit test in order to guard against adding | 
 | // new references and forgetting to update GetStatsReferencedIds(). | 
 | TEST_F(RTCStatsIntegrationTest, GetStatsReferencedIds) { | 
 |   StartCall(); | 
 |  | 
 |   rtc::scoped_refptr<const RTCStatsReport> report = GetStatsFromCallee(); | 
 |   for (const RTCStats& stats : *report) { | 
 |     // Find all references by looking at all string members with the "Id" or | 
 |     // "Ids" suffix. | 
 |     std::set<const std::string*> expected_ids; | 
 |     for (const auto* member : stats.Members()) { | 
 |       if (!member->is_defined()) | 
 |         continue; | 
 |       if (member->type() == RTCStatsMemberInterface::kString) { | 
 |         if (absl::EndsWith(member->name(), "Id")) { | 
 |           const auto& id = member->cast_to<const RTCStatsMember<std::string>>(); | 
 |           expected_ids.insert(&(*id)); | 
 |         } | 
 |       } else if (member->type() == RTCStatsMemberInterface::kSequenceString) { | 
 |         if (absl::EndsWith(member->name(), "Ids")) { | 
 |           const auto& ids = | 
 |               member->cast_to<const RTCStatsMember<std::vector<std::string>>>(); | 
 |           for (const std::string& id : *ids) | 
 |             expected_ids.insert(&id); | 
 |         } | 
 |       } | 
 |     } | 
 |  | 
 |     std::vector<const std::string*> neighbor_ids = GetStatsReferencedIds(stats); | 
 |     EXPECT_EQ(neighbor_ids.size(), expected_ids.size()); | 
 |     for (const std::string* neighbor_id : neighbor_ids) { | 
 |       EXPECT_THAT(expected_ids, Contains(neighbor_id)); | 
 |     } | 
 |     for (const std::string* expected_id : expected_ids) { | 
 |       EXPECT_THAT(neighbor_ids, Contains(expected_id)); | 
 |     } | 
 |   } | 
 | } | 
 |  | 
 | TEST_F(RTCStatsIntegrationTest, GetStatsContainsNoDuplicateMembers) { | 
 |   StartCall(); | 
 |  | 
 |   rtc::scoped_refptr<const RTCStatsReport> report = GetStatsFromCallee(); | 
 |   for (const RTCStats& stats : *report) { | 
 |     std::set<std::string> member_names; | 
 |     for (const auto* member : stats.Members()) { | 
 |       EXPECT_TRUE(member_names.find(member->name()) == member_names.end()) | 
 |           << member->name() << " is a duplicate!"; | 
 |       member_names.insert(member->name()); | 
 |     } | 
 |   } | 
 | } | 
 | #endif  // WEBRTC_HAVE_SCTP | 
 |  | 
 | }  // namespace | 
 |  | 
 | }  // namespace webrtc |