1 files changed, 127 insertions, 0 deletions
diff --git a/third_party/libwebrtc/test/peer_scenario/peer_scenario.cc b/third_party/libwebrtc/test/peer_scenario/peer_scenario.cc
new file mode 100644
index 0000000000..485e33f67f
--- /dev/null
+++ b/third_party/libwebrtc/test/peer_scenario/peer_scenario.cc
@@ -0,0 +1,127 @@
+/*
+ *  Copyright (c) 2019 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 "test/peer_scenario/peer_scenario.h"
+
+#include "absl/flags/flag.h"
+#include "absl/memory/memory.h"
+#include "rtc_base/null_socket_server.h"
+#include "rtc_base/string_encode.h"
+#include "rtc_base/strings/string_builder.h"
+#include "test/logging/file_log_writer.h"
+#include "test/testsupport/file_utils.h"
+#include "test/time_controller/real_time_controller.h"
+#include "test/time_controller/simulated_time_controller.h"
+
+ABSL_FLAG(bool, peer_logs, false, "Save logs from peer scenario framework.");
+ABSL_FLAG(std::string,
+          peer_logs_root,
+          "",
+          "Output root path, based on project root if unset.");
+
+namespace webrtc {
+namespace test {
+namespace {
+std::unique_ptr<FileLogWriterFactory> GetPeerScenarioLogManager(
+    std::string file_name) {
+  if (absl::GetFlag(FLAGS_peer_logs) && !file_name.empty()) {
+    std::string output_root = absl::GetFlag(FLAGS_peer_logs_root);
+    if (output_root.empty())
+      output_root = OutputPath() + "output_data/";
+
+    auto base_filename = output_root + file_name + ".";
+    RTC_LOG(LS_INFO) << "Saving peer scenario logs to: " << base_filename;
+    return std::make_unique<FileLogWriterFactory>(base_filename);
+  }
+  return nullptr;
+}
+}  // namespace
+
+PeerScenario::PeerScenario(const testing::TestInfo& test_info, TimeMode mode)
+    : PeerScenario(
+          std::string(test_info.test_suite_name()) + "/" + test_info.name(),
+          mode) {}
+
+PeerScenario::PeerScenario(std::string file_name, TimeMode mode)
+    : PeerScenario(GetPeerScenarioLogManager(file_name), mode) {}
+
+PeerScenario::PeerScenario(
+    std::unique_ptr<LogWriterFactoryInterface> log_writer_manager,
+    TimeMode mode)
+    : log_writer_manager_(std::move(log_writer_manager)),
+      net_(mode, EmulatedNetworkStatsGatheringMode::kDefault),
+      signaling_thread_(net_.time_controller()->GetMainThread()) {}
+
+PeerScenarioClient* PeerScenario::CreateClient(
+    PeerScenarioClient::Config config) {
+  return CreateClient(
+      std::string("client_") + rtc::ToString(peer_clients_.size() + 1), config);
+}
+
+PeerScenarioClient* PeerScenario::CreateClient(
+    std::string name,
+    PeerScenarioClient::Config config) {
+  peer_clients_.emplace_back(net(), signaling_thread_,
+                             GetLogWriterFactory(name), config);
+  return &peer_clients_.back();
+}
+
+SignalingRoute PeerScenario::ConnectSignaling(
+    PeerScenarioClient* caller,
+    PeerScenarioClient* callee,
+    std::vector<EmulatedNetworkNode*> send_link,
+    std::vector<EmulatedNetworkNode*> ret_link) {
+  return SignalingRoute(caller, callee, net_.CreateCrossTrafficRoute(send_link),
+                        net_.CreateCrossTrafficRoute(ret_link));
+}
+
+void PeerScenario::SimpleConnection(
+    PeerScenarioClient* caller,
+    PeerScenarioClient* callee,
+    std::vector<EmulatedNetworkNode*> send_link,
+    std::vector<EmulatedNetworkNode*> ret_link) {
+  net()->CreateRoute(caller->endpoint(), send_link, callee->endpoint());
+  net()->CreateRoute(callee->endpoint(), ret_link, caller->endpoint());
+  auto signaling = ConnectSignaling(caller, callee, send_link, ret_link);
+  signaling.StartIceSignaling();
+  std::atomic<bool> done(false);
+  signaling.NegotiateSdp(
+      [&](const SessionDescriptionInterface&) { done = true; });
+  RTC_CHECK(WaitAndProcess(&done));
+}
+
+void PeerScenario::AttachVideoQualityAnalyzer(VideoQualityAnalyzer* analyzer,
+                                              VideoTrackInterface* send_track,
+                                              PeerScenarioClient* receiver) {
+  video_quality_pairs_.emplace_back(clock(), analyzer);
+  auto pair = &video_quality_pairs_.back();
+  send_track->AddOrUpdateSink(&pair->capture_tap_, rtc::VideoSinkWants());
+  receiver->AddVideoReceiveSink(send_track->id(), &pair->decode_tap_);
+}
+
+bool PeerScenario::WaitAndProcess(std::atomic<bool>* event,
+                                  TimeDelta max_duration) {
+  return net_.time_controller()->Wait([event] { return event->load(); },
+                                      max_duration);
+}
+
+void PeerScenario::ProcessMessages(TimeDelta duration) {
+  net_.time_controller()->AdvanceTime(duration);
+}
+
+std::unique_ptr<LogWriterFactoryInterface> PeerScenario::GetLogWriterFactory(
+    std::string name) {
+  if (!log_writer_manager_ || name.empty())
+    return nullptr;
+  return std::make_unique<LogWriterFactoryAddPrefix>(log_writer_manager_.get(),
+                                                     name);
+}
+
+}  // namespace test
+}  // namespace webrtc