| // 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 "base/bind.h" |
| #include "base/bind_helpers.h" |
| #include "media/base/audio_renderer_mixer.h" |
| #include "media/base/audio_renderer_mixer_input.h" |
| #include "media/base/fake_audio_render_callback.h" |
| #include "media/base/mock_audio_renderer_sink.h" |
| #include "testing/gmock/include/gmock/gmock.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| |
| namespace media { |
| |
| static const int kBitsPerChannel = 16; |
| static const int kSampleRate = 48000; |
| static const int kBufferSize = 8192; |
| static const ChannelLayout kChannelLayout = CHANNEL_LAYOUT_STEREO; |
| |
| class AudioRendererMixerInputTest : public testing::Test { |
| public: |
| AudioRendererMixerInputTest() { |
| audio_parameters_ = AudioParameters( |
| AudioParameters::AUDIO_PCM_LINEAR, kChannelLayout, kSampleRate, |
| kBitsPerChannel, kBufferSize); |
| |
| mixer_input_ = new AudioRendererMixerInput( |
| base::Bind( |
| &AudioRendererMixerInputTest::GetMixer, base::Unretained(this)), |
| base::Bind( |
| &AudioRendererMixerInputTest::RemoveMixer, base::Unretained(this))); |
| fake_callback_.reset(new FakeAudioRenderCallback(0)); |
| mixer_input_->Initialize(audio_parameters_, fake_callback_.get()); |
| EXPECT_CALL(*this, RemoveMixer(testing::_)); |
| } |
| |
| AudioRendererMixer* GetMixer(const AudioParameters& params) { |
| if (!mixer_.get()) { |
| scoped_refptr<MockAudioRendererSink> sink = new MockAudioRendererSink(); |
| EXPECT_CALL(*sink, Start()); |
| EXPECT_CALL(*sink, Stop()); |
| |
| mixer_.reset(new AudioRendererMixer( |
| audio_parameters_, audio_parameters_, sink)); |
| } |
| return mixer_.get(); |
| } |
| |
| MOCK_METHOD1(RemoveMixer, void(const AudioParameters&)); |
| |
| protected: |
| virtual ~AudioRendererMixerInputTest() {} |
| |
| AudioParameters audio_parameters_; |
| scoped_ptr<AudioRendererMixer> mixer_; |
| scoped_refptr<AudioRendererMixerInput> mixer_input_; |
| scoped_ptr<FakeAudioRenderCallback> fake_callback_; |
| |
| DISALLOW_COPY_AND_ASSIGN(AudioRendererMixerInputTest); |
| }; |
| |
| // Test callback() works as expected. |
| TEST_F(AudioRendererMixerInputTest, GetCallback) { |
| EXPECT_EQ(mixer_input_->callback(), fake_callback_.get()); |
| } |
| |
| // Test that getting and setting the volume work as expected. |
| TEST_F(AudioRendererMixerInputTest, GetSetVolume) { |
| // Starting volume should be 0. |
| double volume = 1.0f; |
| mixer_input_->GetVolume(&volume); |
| EXPECT_EQ(volume, 1.0f); |
| |
| const double kVolume = 0.5f; |
| EXPECT_TRUE(mixer_input_->SetVolume(kVolume)); |
| mixer_input_->GetVolume(&volume); |
| EXPECT_EQ(volume, kVolume); |
| } |
| |
| // Test Start()/Play()/Pause()/Stop()/playing() all work as expected. Also |
| // implicitly tests that AddMixerInput() and RemoveMixerInput() work without |
| // crashing; functional tests for these methods are in AudioRendererMixerTest. |
| TEST_F(AudioRendererMixerInputTest, StartPlayPauseStopPlaying) { |
| mixer_input_->Start(); |
| EXPECT_FALSE(mixer_input_->playing()); |
| mixer_input_->Play(); |
| EXPECT_TRUE(mixer_input_->playing()); |
| mixer_input_->Pause(false); |
| EXPECT_FALSE(mixer_input_->playing()); |
| mixer_input_->Play(); |
| EXPECT_TRUE(mixer_input_->playing()); |
| mixer_input_->Stop(); |
| EXPECT_FALSE(mixer_input_->playing()); |
| } |
| |
| } // namespace media |