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// Copyright 2013 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/synchronization/waitable_event.h"
#include "base/test/test_timeouts.h"
#include "base/time/time.h"
#include "media/audio/cras/audio_manager_cras.h"
#include "media/audio/cras/cras_unified.h"
#include "media/audio/fake_audio_log_factory.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
using testing::_;
using testing::DoAll;
using testing::InvokeWithoutArgs;
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_METHOD1(OnError, void(AudioOutputStream* stream));
};
class MockAudioManagerCras : public AudioManagerCras {
public:
MockAudioManagerCras() : AudioManagerCras(&fake_audio_log_factory_) {}
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;
}
private:
FakeAudioLogFactory fake_audio_log_factory_;
};
class CrasUnifiedStreamTest : public testing::Test {
protected:
CrasUnifiedStreamTest() {
mock_manager_.reset(new StrictMock<MockAudioManagerCras>());
}
virtual ~CrasUnifiedStreamTest() {
}
CrasUnifiedStream* CreateStream(ChannelLayout layout) {
return CreateStream(layout, kTestFramesPerPacket);
}
CrasUnifiedStream* CreateStream(ChannelLayout layout,
int32 samples_per_packet) {
AudioParameters params(kTestFormat, layout, kTestSampleRate,
kTestBitsPerSample, samples_per_packet);
return new CrasUnifiedStream(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 AudioParameters::Format kTestFormat;
static const uint32 kTestFramesPerPacket;
scoped_ptr<StrictMock<MockAudioManagerCras> > mock_manager_;
private:
DISALLOW_COPY_AND_ASSIGN(CrasUnifiedStreamTest);
};
const ChannelLayout CrasUnifiedStreamTest::kTestChannelLayout =
CHANNEL_LAYOUT_STEREO;
const int CrasUnifiedStreamTest::kTestSampleRate =
AudioParameters::kAudioCDSampleRate;
const int CrasUnifiedStreamTest::kTestBitsPerSample = 16;
const AudioParameters::Format CrasUnifiedStreamTest::kTestFormat =
AudioParameters::AUDIO_PCM_LINEAR;
const uint32 CrasUnifiedStreamTest::kTestFramesPerPacket = 1000;
TEST_F(CrasUnifiedStreamTest, ConstructedState) {
// Should support mono.
CrasUnifiedStream* test_stream = CreateStream(CHANNEL_LAYOUT_MONO);
test_stream->Close();
// Should support stereo.
test_stream = CreateStream(CHANNEL_LAYOUT_SURROUND);
EXPECT_TRUE(test_stream->Open());
test_stream->Close();
// Bad bits per sample.
AudioParameters bad_bps_params(kTestFormat, kTestChannelLayout,
kTestSampleRate, kTestBitsPerSample - 1,
kTestFramesPerPacket);
test_stream = new CrasUnifiedStream(bad_bps_params, mock_manager_.get());
EXPECT_FALSE(test_stream->Open());
test_stream->Close();
// Bad sample rate.
AudioParameters bad_rate_params(kTestFormat, kTestChannelLayout,
0, kTestBitsPerSample, kTestFramesPerPacket);
test_stream = new CrasUnifiedStream(bad_rate_params, mock_manager_.get());
EXPECT_FALSE(test_stream->Open());
test_stream->Close();
// Check that Mono works too.
test_stream = CreateStream(CHANNEL_LAYOUT_MONO);
ASSERT_TRUE(test_stream->Open());
test_stream->Close();
}
TEST_F(CrasUnifiedStreamTest, RenderFrames) {
CrasUnifiedStream* test_stream = CreateStream(CHANNEL_LAYOUT_MONO);
MockAudioSourceCallback mock_callback;
ASSERT_TRUE(test_stream->Open());
base::WaitableEvent event(false, false);
EXPECT_CALL(mock_callback, OnMoreData(_, _))
.WillRepeatedly(DoAll(
InvokeWithoutArgs(&event, &base::WaitableEvent::Signal),
Return(kTestFramesPerPacket)));
test_stream->Start(&mock_callback);
// Wait for samples to be captured.
EXPECT_TRUE(event.TimedWait(TestTimeouts::action_timeout()));
test_stream->Stop();
test_stream->Close();
}
} // namespace media
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