Add a unified audio I/O backend for ChromeOS.

media/audio/cras/cras_output_unittest.cc

Index: media/audio/cras/cras_output_unittest.cc
diff --git a/media/audio/cras/cras_output_unittest.cc b/media/audio/cras/cras_output_unittest.cc
deleted file mode 100644
index cbae6fe1dffa52fb72ddd8e50865f0f24801e999..0000000000000000000000000000000000000000
--- a/media/audio/cras/cras_output_unittest.cc
+++ /dev/null
@@ -1,221 +0,0 @@
-// Copyright (c) 2012 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 <string>
-
-#include "base/threading/thread.h"
-#include "media/audio/cras/audio_manager_cras.h"
-#include "media/audio/cras/cras_output.h"
-#include "testing/gmock/include/gmock/gmock.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-using testing::_;
-using testing::DoAll;
-using testing::Return;
-using testing::SetArgumentPointee;
-using testing::StrictMock;
-
-namespace media {
-
-class MockAudioSourceCallback : public AudioOutputStream::AudioSourceCallback {
- public:
-  MOCK_METHOD2(OnMoreData, int(AudioBus* audio_bus,
-                               AudioBuffersState buffers_state));
-  MOCK_METHOD3(OnMoreIOData, int(AudioBus* source,
-                                 AudioBus* dest,
-                                 AudioBuffersState buffers_state));
-  MOCK_METHOD2(OnError, void(AudioOutputStream* stream, int code));
-};
-
-class MockAudioManagerCras : public AudioManagerCras {
- public:
-  MOCK_METHOD0(Init, void());
-  MOCK_METHOD0(HasAudioOutputDevices, bool());
-  MOCK_METHOD0(HasAudioInputDevices, bool());
-  MOCK_METHOD1(MakeLinearOutputStream, AudioOutputStream*(
-      const AudioParameters& params));
-  MOCK_METHOD1(MakeLowLatencyOutputStream, AudioOutputStream*(
-      const AudioParameters& params));
-  MOCK_METHOD2(MakeLinearOutputStream, AudioInputStream*(
-      const AudioParameters& params, const std::string& device_id));
-  MOCK_METHOD2(MakeLowLatencyInputStream, AudioInputStream*(
-      const AudioParameters& params, const std::string& device_id));
-
-  // We need to override this function in order to skip the checking the number
-  // of active output streams. It is because the number of active streams
-  // is managed inside MakeAudioOutputStream, and we don't use
-  // MakeAudioOutputStream to create the stream in the tests.
-  virtual void ReleaseOutputStream(AudioOutputStream* stream) OVERRIDE {
-    DCHECK(stream);
-    delete stream;
-  }
-
-  // We don't mock this method since all tests will do the same thing
-  // and use the current message loop.
-  virtual scoped_refptr<base::MessageLoopProxy> GetMessageLoop() OVERRIDE {
-    return MessageLoop::current()->message_loop_proxy();
-  }
-};
-
-class CrasOutputStreamTest : public testing::Test {
- protected:
-  CrasOutputStreamTest() {
-    mock_manager_.reset(new StrictMock<MockAudioManagerCras>());
-  }
-
-  virtual ~CrasOutputStreamTest() {
-  }
-
-  CrasOutputStream* CreateStream(ChannelLayout layout) {
-    return CreateStream(layout, kTestFramesPerPacket);
-  }
-
-  CrasOutputStream* CreateStream(ChannelLayout layout,
-                                 int32 samples_per_packet) {
-    AudioParameters params(kTestFormat, layout, kTestSampleRate,
-                           kTestBitsPerSample, samples_per_packet);
-    return new CrasOutputStream(params,
-                                mock_manager_.get());
-  }
-
-  MockAudioManagerCras& mock_manager() {
-    return *(mock_manager_.get());
-  }
-
-  static const ChannelLayout kTestChannelLayout;
-  static const int kTestSampleRate;
-  static const int kTestBitsPerSample;
-  static const int kTestBytesPerFrame;
-  static const AudioParameters::Format kTestFormat;
-  static const uint32 kTestFramesPerPacket;
-  static const uint32 kTestPacketSize;
-  static struct cras_audio_format* const kFakeAudioFormat;
-  static struct cras_stream_params* const kFakeStreamParams;
-  static struct cras_client* const kFakeClient;
-
-  scoped_ptr<StrictMock<MockAudioManagerCras> > mock_manager_;
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(CrasOutputStreamTest);
-};
-
-const ChannelLayout CrasOutputStreamTest::kTestChannelLayout =
-    CHANNEL_LAYOUT_STEREO;
-const int CrasOutputStreamTest::kTestSampleRate =
-    AudioParameters::kAudioCDSampleRate;
-const int CrasOutputStreamTest::kTestBitsPerSample = 16;
-const int CrasOutputStreamTest::kTestBytesPerFrame =
-    CrasOutputStreamTest::kTestBitsPerSample / 8 *
-    ChannelLayoutToChannelCount(CrasOutputStreamTest::kTestChannelLayout);
-const AudioParameters::Format CrasOutputStreamTest::kTestFormat =
-    AudioParameters::AUDIO_PCM_LINEAR;
-const uint32 CrasOutputStreamTest::kTestFramesPerPacket = 1000;
-const uint32 CrasOutputStreamTest::kTestPacketSize =
-    CrasOutputStreamTest::kTestFramesPerPacket *
-    CrasOutputStreamTest::kTestBytesPerFrame;
-struct cras_audio_format* const CrasOutputStreamTest::kFakeAudioFormat =
-    reinterpret_cast<struct cras_audio_format*>(1);
-struct cras_stream_params* const CrasOutputStreamTest::kFakeStreamParams =
-    reinterpret_cast<struct cras_stream_params*>(1);
-struct cras_client* const CrasOutputStreamTest::kFakeClient =
-    reinterpret_cast<struct cras_client*>(1);
-
-TEST_F(CrasOutputStreamTest, ConstructedState) {
-  // Should support mono.
-  CrasOutputStream* test_stream = CreateStream(CHANNEL_LAYOUT_MONO);
-  EXPECT_EQ(CrasOutputStream::kCreated, test_stream->state());
-  test_stream->Close();
-
-  // Should support stereo.
-  test_stream = CreateStream(CHANNEL_LAYOUT_SURROUND);
-  EXPECT_EQ(CrasOutputStream::kCreated, test_stream->state());
-  test_stream->Close();
-
-  // Bad bits per sample.
-  AudioParameters bad_bps_params(kTestFormat, kTestChannelLayout,
-                                 kTestSampleRate, kTestBitsPerSample - 1,
-                                 kTestFramesPerPacket);
-  test_stream = new CrasOutputStream(bad_bps_params, mock_manager_.get());
-  EXPECT_EQ(CrasOutputStream::kInError, test_stream->state());
-  test_stream->Close();
-
-  // Bad format.
-  AudioParameters bad_format_params(AudioParameters::AUDIO_LAST_FORMAT,
-                                    kTestChannelLayout, kTestSampleRate,
-                                    kTestBitsPerSample, kTestFramesPerPacket);
-  test_stream = new CrasOutputStream(bad_format_params, mock_manager_.get());
-  EXPECT_EQ(CrasOutputStream::kInError, test_stream->state());
-  test_stream->Close();
-
-  // Bad sample rate.
-  AudioParameters bad_rate_params(kTestFormat, kTestChannelLayout,
-                                  0, kTestBitsPerSample, kTestFramesPerPacket);
-  test_stream = new CrasOutputStream(bad_rate_params, mock_manager_.get());
-  EXPECT_EQ(CrasOutputStream::kInError, test_stream->state());
-  test_stream->Close();
-}
-
-TEST_F(CrasOutputStreamTest, OpenClose) {
-  CrasOutputStream* test_stream = CreateStream(CHANNEL_LAYOUT_MONO);
-  // Open the stream.
-  ASSERT_TRUE(test_stream->Open());
-  EXPECT_EQ(CrasOutputStream::kIsOpened, test_stream->state());
-
-  // Close the stream.
-  test_stream->Close();
-}
-
-TEST_F(CrasOutputStreamTest, StartFailBeforeOpen) {
-  CrasOutputStream* test_stream = CreateStream(CHANNEL_LAYOUT_MONO);
-  MockAudioSourceCallback mock_callback;
-
-  test_stream->Start(&mock_callback);
-  EXPECT_EQ(CrasOutputStream::kInError, test_stream->state());
-}
-
-TEST_F(CrasOutputStreamTest, StartStop) {
-  CrasOutputStream* test_stream = CreateStream(CHANNEL_LAYOUT_MONO);
-  MockAudioSourceCallback mock_callback;
-
-  // Open the stream.
-  ASSERT_TRUE(test_stream->Open());
-  EXPECT_EQ(CrasOutputStream::kIsOpened, test_stream->state());
-
-  // Start.
-  test_stream->Start(&mock_callback);
-  EXPECT_EQ(CrasOutputStream::kIsPlaying, test_stream->state());
-
-  // Stop.
-  test_stream->Stop();
-  EXPECT_EQ(CrasOutputStream::kIsStopped, test_stream->state());
-
-  // Close the stream.
-  test_stream->Close();
-}
-
-TEST_F(CrasOutputStreamTest, RenderFrames) {
-  CrasOutputStream* test_stream = CreateStream(CHANNEL_LAYOUT_MONO);
-  MockAudioSourceCallback mock_callback;
-
-  // Open the stream.
-  ASSERT_TRUE(test_stream->Open());
-  EXPECT_EQ(CrasOutputStream::kIsOpened, test_stream->state());
-
-  // Render Callback.
-  EXPECT_CALL(mock_callback, OnMoreData(_, _))
-      .WillRepeatedly(Return(kTestFramesPerPacket));
-
-  // Start.
-  test_stream->Start(&mock_callback);
-  EXPECT_EQ(CrasOutputStream::kIsPlaying, test_stream->state());
-
-  // Stop.
-  test_stream->Stop();
-  EXPECT_EQ(CrasOutputStream::kIsStopped, test_stream->state());
-
-  // Close the stream.
-  test_stream->Close();
-}
-
-}  // namespace media