chromium/third_party/blink/renderer/modules/peerconnection/webrtc_set_description_observer_test.cc

// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "third_party/blink/renderer/modules/peerconnection/webrtc_set_description_observer.h"

#include <memory>
#include <optional>
#include <utility>
#include <vector>

#include "base/functional/bind.h"
#include "base/memory/ptr_util.h"
#include "base/run_loop.h"
#include "base/task/single_thread_task_runner.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/blink/public/platform/scheduler/test/renderer_scheduler_test_support.h"
#include "third_party/blink/public/web/web_heap.h"
#include "third_party/blink/renderer/modules/peerconnection/mock_peer_connection_dependency_factory.h"
#include "third_party/blink/renderer/modules/peerconnection/mock_peer_connection_impl.h"
#include "third_party/blink/renderer/modules/peerconnection/testing/mock_peer_connection_interface.h"
#include "third_party/blink/renderer/modules/peerconnection/webrtc_media_stream_track_adapter_map.h"
#include "third_party/blink/renderer/platform/mediastream/media_stream_audio_source.h"
#include "third_party/blink/renderer/platform/mediastream/media_stream_audio_track.h"
#include "third_party/blink/renderer/platform/testing/task_environment.h"
#include "third_party/webrtc/api/peer_connection_interface.h"
#include "third_party/webrtc/media/base/fake_media_engine.h"

Return;

namespace blink {

class WebRtcSetDescriptionObserverForTest
    : public WebRtcSetDescriptionObserver { … };

enum class ObserverHandlerType { … };

// Because webrtc observer interfaces are different classes,
// WebRtcSetLocalDescriptionObserverHandler and
// WebRtcSetRemoteDescriptionObserverHandler have different class hierarchies
// despite implementing the same behavior. This wrapper hides these differences.
class ObserverHandlerWrapper { … };

enum class StateSurfacerType { … };

struct PrintToStringObserverHandlerType { … };

// Using parameterization, this class is used to test both
// WebRtcSetLocalDescriptionObserverHandler and
// WebRtcSetRemoteDescriptionObserverHandler. The handlers, used for
// setLocalDescription() and setRemoteDescription() respectively, are virtually
// identical in terms of functionality but have different class hierarchies due
// to webrtc observer interfaces being different classes.
class WebRtcSetDescriptionObserverHandlerTest
    : public ::testing::TestWithParam<ObserverHandlerType> { … };

TEST_P(WebRtcSetDescriptionObserverHandlerTest, OnSuccess) { … }

TEST_P(WebRtcSetDescriptionObserverHandlerTest, OnFailure) { … }

// Test coverage for https://crbug.com/897251. If the webrtc peer connection is
// implemented to invoke the callback with a delay it might already have been
// closed when the observer is invoked. A closed RTCPeerConnection is allowed to
// be garbage collected. In rare circumstances, the RTCPeerConnection,
// RTCPeerConnectionHandler and any local track adapters may thus have been
// deleted when the observer attempts to surface transceiver state information.
// This test insures that TransceiverStateSurfacer::Initialize() does not crash
// due to track adapters not existing.
TEST_P(WebRtcSetDescriptionObserverHandlerTest,
       ClosePeerConnectionBeforeCallback) { … }

INSTANTIATE_TEST_SUITE_P(…);

}  // namespace blink