Switching audio clients to using RestartableAudioRendererSink interface as a sink.

media/audio/restartable_audio_output_device_impl_unittest.cc

Index: media/audio/restartable_audio_output_device_impl_unittest.cc
diff --git a/media/audio/restartable_audio_output_device_impl_unittest.cc b/media/audio/restartable_audio_output_device_impl_unittest.cc
new file mode 100644
index 0000000000000000000000000000000000000000..046a0de8311296c45d8529043a62ee383daf66c4
--- /dev/null
+++ b/media/audio/restartable_audio_output_device_impl_unittest.cc
@@ -0,0 +1,436 @@
+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "media/audio/restartable_audio_output_device_impl.h"
+
+#include "base/single_thread_task_runner.h"
+#include "media/audio/audio_output_device.h"
+#include "media/audio/audio_output_ipc.h"
+#include "media/audio/mock_audio_output_ipc.h"
+#include "media/audio/mock_render_callback.h"
+#include "testing/gmock/include/gmock/gmock.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+using testing::_;
+using testing::Exactly;
+using testing::InSequence;
+
+namespace media {
+
+namespace {
+
+const int kHWSampleRate = 22500;
+const int kDefaultSampleRate = 32000;
+const int kNewSampleRate = 44100;
+const char kDefaultDeviceId[] = "";
+const char kBrokenDeviceId[] = "broken-device";
+
+AudioParameters BuildHWParams() {
+  return AudioParameters(AudioParameters::AUDIO_PCM_LINEAR,
+                         CHANNEL_LAYOUT_STEREO, kHWSampleRate, 16, 512);
+}
+
+class FakeAudioOutputDevice : NON_EXPORTED_BASE(public AudioOutputDevice) {
+ public:
+  FakeAudioOutputDevice(
+      scoped_ptr<AudioOutputIPC> ipc,
+      const scoped_refptr<base::SingleThreadTaskRunner>& io_task_runner,
+      const std::string& device_id)
+      : AudioOutputDevice(std::move(ipc),
+                          io_task_runner,
+                          0,
+                          std::string(),
+                          url::Origin()),
+        device_id_(device_id),
+        sample_rate_(0),
+        volume_(1.0),
+        initialized_(false),
+        started_(false),
+        playing_(false) {}
+
+  MOCK_METHOD0(MockStop, void());
+
+  void Initialize(const AudioParameters& params, RenderCallback*) override {
+    initialized_ = true;
+    sample_rate_ = params.sample_rate();
+  }
+
+  void Start() override {
+    EXPECT_TRUE(initialized_);
+    started_ = true;
+    playing_ = true;  // AudioOutputDevice plays on start.
+  }
+
+  void Play() override {
+    EXPECT_TRUE(initialized_);
+    playing_ = true;
+  }
+
+  void Pause() override {
+    EXPECT_TRUE(initialized_);
+    playing_ = false;
+  }
+
+  void Stop() override {
+    started_ = false;
+    playing_ = false;
+    MockStop();
+  }
+
+  bool SetVolume(double volume) override {
+    EXPECT_TRUE(initialized_);
+    if (device_id_ == kBrokenDeviceId) {
+      volume_ = 0;
+      return false;
+    }
+    volume_ = volume;
+    return true;
+  }
+
+  double GetVolume() { return volume_; }
+  int GetSampleRate() { return sample_rate_; }
+  bool IsPlaying() { return started_ && playing_; }
+
+  OutputDeviceStatus GetDeviceStatus() override {
+    return device_id_ == kBrokenDeviceId ? OUTPUT_DEVICE_STATUS_ERROR_INTERNAL
+                                         : OUTPUT_DEVICE_STATUS_OK;
+  }
+
+  AudioParameters GetOutputParameters() override {
+    AudioParameters params = BuildHWParams();
+    if (device_id_ == kBrokenDeviceId)
+      params.set_format(AudioParameters::AUDIO_FAKE);
+    return params;
+  }
+
+ protected:
+  virtual ~FakeAudioOutputDevice() {}
+
+ private:
+  const std::string device_id_;
+  int sample_rate_;
+  double volume_;
+  bool initialized_;
+  bool started_;
+  bool playing_;
+};
+
+}  // namespace
+
+class RestartableAudioOutputDeviceImplTest : public testing::Test {
+ protected:
+  RestartableAudioOutputDeviceImplTest()
+      : message_loop_(new base::MessageLoopForIO),
+        mock_ipc_(nullptr),
+        default_params_(AudioParameters::AUDIO_PCM_LINEAR,
+                        CHANNEL_LAYOUT_STEREO,
+                        kDefaultSampleRate,
+                        16,
+                        512),
+        new_params_(AudioParameters::AUDIO_PCM_LINEAR,
+                    CHANNEL_LAYOUT_STEREO,
+                    kNewSampleRate,
+                    16,
+                    512) {}
+
+  MOCK_METHOD0(MockCreateOutputDevice, void());
+
+  scoped_refptr<media::AudioOutputDevice> CreateOutputDevice(
+      int render_frame_id,
+      int session_id,
+      const std::string& device_id,
+      const url::Origin& security_origin) {
+    mock_ipc_ = new MockAudioOutputIPC();
+    mock_output_device_ =
+        new FakeAudioOutputDevice(scoped_ptr<media::AudioOutputIPC>(mock_ipc_),
+                                  message_loop_->task_runner(), device_id);
+    ;
+    EXPECT_CALL(*mock_output_device_.get(), MockStop()).Times(Exactly(1));
+    MockCreateOutputDevice();
+    return mock_output_device_;
+  }
+
+  void PrepareSink(const std::string& device_id, int times_to_restart = 0) {
+    static const int kRendererFrameId = 0;
+    static const int kSessionId = 0;
+    static const url::Origin kSecurityOrigin;
+    EXPECT_CALL(*this, MockCreateOutputDevice()).Times(times_to_restart + 1);
+    sink_ = new media::RestartableAudioOutputDeviceImpl(
+        base::Bind(&RestartableAudioOutputDeviceImplTest::CreateOutputDevice,
+                   base::Unretained(this), kRendererFrameId, kSessionId,
+                   device_id, kSecurityOrigin),
+        base::Bind(&BuildHWParams));
+  }
+
+  void TearDown() override {
+    mock_output_device_ = nullptr;
+    sink_ = nullptr;
+  }
+
+  // Used to construct |mock_output_device_|.
+  scoped_ptr<base::MessageLoopForIO> message_loop_;
+  MockAudioOutputIPC* mock_ipc_;  // Owned by AudioOuputDevice.
+  scoped_refptr<FakeAudioOutputDevice> mock_output_device_;
+
+  // Sink under test.
+  scoped_refptr<media::RestartableAudioOutputDeviceImpl> sink_;
+
+  // Data used for initializations.
+  media::AudioParameters default_params_;
+  media::AudioParameters new_params_;
+  MockRenderCallback callback_;
+};
+
+TEST_F(RestartableAudioOutputDeviceImplTest, StopNotInitializedSink) {
+  PrepareSink(kDefaultDeviceId);
+  EXPECT_FALSE(mock_output_device_->IsPlaying());
+  sink_->Stop();
+}
+
+TEST_F(RestartableAudioOutputDeviceImplTest, InitializeAndStopSink) {
+  PrepareSink(kDefaultDeviceId);
+  sink_->Initialize(default_params_, &callback_);
+  EXPECT_FALSE(mock_output_device_->IsPlaying());
+  EXPECT_EQ(OUTPUT_DEVICE_STATUS_OK, sink_->GetDeviceStatus());
+  sink_->Stop();
+}
+
+TEST_F(RestartableAudioOutputDeviceImplTest, StartAndStopSink) {
+  PrepareSink(kDefaultDeviceId);
+
+  sink_->Initialize(default_params_, &callback_);
+  EXPECT_EQ(OUTPUT_DEVICE_STATUS_OK, sink_->GetDeviceStatus());
+  EXPECT_FALSE(mock_output_device_->IsPlaying());
+
+  sink_->Start();
+  EXPECT_EQ(OUTPUT_DEVICE_STATUS_OK, sink_->GetDeviceStatus());
+  EXPECT_FALSE(mock_output_device_->IsPlaying());
+
+  sink_->Stop();
+}
+
+TEST_F(RestartableAudioOutputDeviceImplTest, StartPlayAndStopSink) {
+  PrepareSink(kDefaultDeviceId);
+
+  sink_->Initialize(default_params_, &callback_);
+  EXPECT_EQ(OUTPUT_DEVICE_STATUS_OK, sink_->GetDeviceStatus());
+  EXPECT_FALSE(mock_output_device_->IsPlaying());
+
+  sink_->Start();
+  EXPECT_FALSE(mock_output_device_->IsPlaying());
+  EXPECT_EQ(OUTPUT_DEVICE_STATUS_OK, sink_->GetDeviceStatus());
+
+  EXPECT_EQ(kDefaultSampleRate, mock_output_device_->GetSampleRate());
+
+  sink_->Play();
+  EXPECT_EQ(OUTPUT_DEVICE_STATUS_OK, sink_->GetDeviceStatus());
+  EXPECT_TRUE(mock_output_device_->IsPlaying());
+
+  sink_->Stop();
+}
+
+TEST_F(RestartableAudioOutputDeviceImplTest, StartPauseStopSink) {
+  PrepareSink(kDefaultDeviceId);
+
+  sink_->Initialize(default_params_, &callback_);
+  EXPECT_EQ(OUTPUT_DEVICE_STATUS_OK, sink_->GetDeviceStatus());
+  EXPECT_FALSE(mock_output_device_->IsPlaying());
+
+  sink_->Start();
+  EXPECT_EQ(OUTPUT_DEVICE_STATUS_OK, sink_->GetDeviceStatus());
+  EXPECT_FALSE(mock_output_device_->IsPlaying());
+
+  sink_->Pause();
+  EXPECT_EQ(OUTPUT_DEVICE_STATUS_OK, sink_->GetDeviceStatus());
+  EXPECT_FALSE(mock_output_device_->IsPlaying());
+
+  sink_->Stop();
+}
+
+//*
+TEST_F(RestartableAudioOutputDeviceImplTest, PausePausedSink) {
+  PrepareSink(kDefaultDeviceId);
+
+  sink_->Initialize(default_params_, &callback_);
+  EXPECT_FALSE(mock_output_device_->IsPlaying());
+  sink_->Start();
+  EXPECT_FALSE(mock_output_device_->IsPlaying());
+  sink_->Play();
+  EXPECT_TRUE(mock_output_device_->IsPlaying());
+  sink_->Pause();
+  EXPECT_FALSE(mock_output_device_->IsPlaying());
+  sink_->Pause();
+  EXPECT_FALSE(mock_output_device_->IsPlaying());
+  EXPECT_EQ(OUTPUT_DEVICE_STATUS_OK, sink_->GetDeviceStatus());
+  sink_->Stop();
+}
+//*
+TEST_F(RestartableAudioOutputDeviceImplTest, PlayPlayingSink) {
+  PrepareSink(kDefaultDeviceId);
+
+  sink_->Initialize(default_params_, &callback_);
+  sink_->Start();
+  EXPECT_FALSE(mock_output_device_->IsPlaying());
+  sink_->Play();
+  EXPECT_TRUE(mock_output_device_->IsPlaying());
+  sink_->Play();
+  EXPECT_TRUE(mock_output_device_->IsPlaying());
+  EXPECT_EQ(OUTPUT_DEVICE_STATUS_OK, sink_->GetDeviceStatus());
+  sink_->Play();
+  EXPECT_TRUE(mock_output_device_->IsPlaying());
+  EXPECT_EQ(OUTPUT_DEVICE_STATUS_OK, sink_->GetDeviceStatus());
+  sink_->Stop();
+}
+
+TEST_F(RestartableAudioOutputDeviceImplTest, StartPausePlayStopSink) {
+  PrepareSink(kDefaultDeviceId);
+
+  sink_->Initialize(default_params_, &callback_);
+  sink_->Start();
+  EXPECT_FALSE(mock_output_device_->IsPlaying());
+  sink_->Pause();
+  EXPECT_FALSE(mock_output_device_->IsPlaying());
+  EXPECT_EQ(OUTPUT_DEVICE_STATUS_OK, sink_->GetDeviceStatus());
+  sink_->Play();
+  EXPECT_TRUE(mock_output_device_->IsPlaying());
+  EXPECT_EQ(OUTPUT_DEVICE_STATUS_OK, sink_->GetDeviceStatus());
+  sink_->Stop();
+}
+
+TEST_F(RestartableAudioOutputDeviceImplTest, PauseAfterPlay) {
+  PrepareSink(kDefaultDeviceId);
+
+  sink_->Initialize(default_params_, &callback_);
+  sink_->Start();
+  EXPECT_FALSE(mock_output_device_->IsPlaying());
+  sink_->Play();
+  EXPECT_TRUE(mock_output_device_->IsPlaying());
+  sink_->Pause();
+  EXPECT_FALSE(mock_output_device_->IsPlaying());
+  EXPECT_EQ(OUTPUT_DEVICE_STATUS_OK, sink_->GetDeviceStatus());
+  sink_->Stop();
+}
+
+TEST_F(RestartableAudioOutputDeviceImplTest, MultiplePlayPause) {
+  PrepareSink(kDefaultDeviceId);
+
+  sink_->Initialize(default_params_, &callback_);
+  sink_->Start();
+  EXPECT_FALSE(mock_output_device_->IsPlaying());
+  sink_->Play();
+  EXPECT_TRUE(mock_output_device_->IsPlaying());
+  sink_->Pause();
+  EXPECT_FALSE(mock_output_device_->IsPlaying());
+  sink_->Play();
+  EXPECT_TRUE(mock_output_device_->IsPlaying());
+  EXPECT_EQ(OUTPUT_DEVICE_STATUS_OK, sink_->GetDeviceStatus());
+  sink_->Pause();
+  EXPECT_FALSE(mock_output_device_->IsPlaying());
+  EXPECT_EQ(OUTPUT_DEVICE_STATUS_OK, sink_->GetDeviceStatus());
+  sink_->Stop();
+}
+
+TEST_F(RestartableAudioOutputDeviceImplTest, RestartSinkNoReinit) {
+  PrepareSink(kDefaultDeviceId, 1);
+
+  sink_->Initialize(default_params_, &callback_);
+  sink_->Start();
+  EXPECT_FALSE(mock_output_device_->IsPlaying());
+  EXPECT_EQ(kDefaultSampleRate, mock_output_device_->GetSampleRate());
+  sink_->Play();
+  EXPECT_TRUE(mock_output_device_->IsPlaying());
+  sink_->Stop();
+  EXPECT_EQ(OUTPUT_DEVICE_STATUS_OK, sink_->GetDeviceStatus());
+  sink_->Start();
+  EXPECT_FALSE(mock_output_device_->IsPlaying());
+  EXPECT_EQ(kDefaultSampleRate, mock_output_device_->GetSampleRate());
+  sink_->Play();
+  EXPECT_TRUE(mock_output_device_->IsPlaying());
+  sink_->Stop();
+}
+
+TEST_F(RestartableAudioOutputDeviceImplTest, RestartAndReinitSink) {
+  PrepareSink(kDefaultDeviceId, 1);
+
+  sink_->Initialize(default_params_, &callback_);
+  sink_->Start();
+  EXPECT_FALSE(mock_output_device_->IsPlaying());
+  EXPECT_EQ(kDefaultSampleRate, mock_output_device_->GetSampleRate());
+  sink_->Play();
+  EXPECT_TRUE(mock_output_device_->IsPlaying());
+  sink_->Stop();
+
+  sink_->Initialize(new_params_, &callback_);
+  EXPECT_EQ(OUTPUT_DEVICE_STATUS_OK, sink_->GetDeviceStatus());
+  sink_->Start();
+  EXPECT_FALSE(mock_output_device_->IsPlaying());
+  EXPECT_EQ(kNewSampleRate, mock_output_device_->GetSampleRate());
+  sink_->Play();
+  EXPECT_TRUE(mock_output_device_->IsPlaying());
+  sink_->Stop();
+}
+
+TEST_F(RestartableAudioOutputDeviceImplTest, GetOutputParameters) {
+  PrepareSink(kDefaultDeviceId, 1);
+  EXPECT_EQ(kHWSampleRate, sink_->GetOutputParameters().sample_rate());
+  sink_->Initialize(default_params_, &callback_);
+  EXPECT_EQ(kHWSampleRate, sink_->GetOutputParameters().sample_rate());
+  sink_->Start();
+  EXPECT_EQ(kHWSampleRate, sink_->GetOutputParameters().sample_rate());
+  sink_->Play();
+  EXPECT_EQ(kHWSampleRate, sink_->GetOutputParameters().sample_rate());
+  sink_->Stop();
+  EXPECT_EQ(kHWSampleRate, sink_->GetOutputParameters().sample_rate());
+  sink_->Start();
+  EXPECT_EQ(kHWSampleRate, sink_->GetOutputParameters().sample_rate());
+  sink_->Stop();
+}
+
+TEST_F(RestartableAudioOutputDeviceImplTest, SetVolume) {
+  PrepareSink(kDefaultDeviceId, 1);
+
+  sink_->SetVolume(0.8);  // Set volume before starting sink.
+  sink_->Initialize(default_params_, &callback_);
+  sink_->Start();
+  sink_->Play();
+  EXPECT_DOUBLE_EQ(0.8, mock_output_device_->GetVolume());
+  sink_->Stop();
+
+  EXPECT_TRUE(sink_->SetVolume(0.1));
+  sink_->Initialize(default_params_, &callback_);
+  EXPECT_TRUE(sink_->SetVolume(0.2));
+  sink_->Start();
+  EXPECT_TRUE(sink_->SetVolume(0.3));
+  sink_->Play();
+  EXPECT_DOUBLE_EQ(0.3, mock_output_device_->GetVolume());
+  EXPECT_TRUE(sink_->SetVolume(0.4));
+  EXPECT_DOUBLE_EQ(0.4, mock_output_device_->GetVolume());
+  EXPECT_TRUE(sink_->SetVolume(0.5));
+  EXPECT_DOUBLE_EQ(0.5, mock_output_device_->GetVolume());
+  sink_->Pause();
+  EXPECT_TRUE(sink_->SetVolume(0.6));
+  EXPECT_TRUE(sink_->SetVolume(0.7));
+  sink_->Play();
+  EXPECT_DOUBLE_EQ(0.7, mock_output_device_->GetVolume());
+  sink_->Stop();
+}
+
+TEST_F(RestartableAudioOutputDeviceImplTest, CorrectStatusFromInvalidDevice) {
+  PrepareSink(kBrokenDeviceId, 1);
+
+  sink_->Initialize(default_params_, &callback_);
+  sink_->Start();
+  EXPECT_NE(OUTPUT_DEVICE_STATUS_OK, sink_->GetDeviceStatus());
+
+  sink_->Stop();
+  // Stopped device is OK.
+  EXPECT_EQ(OUTPUT_DEVICE_STATUS_OK, sink_->GetDeviceStatus());
+
+  sink_->Start();
+  EXPECT_NE(OUTPUT_DEVICE_STATUS_OK, sink_->GetDeviceStatus());
+
+  sink_->Stop();
+}
+
+}  // namespace content