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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 <stdint.h>
#include <memory>
#include <string>
#include "base/run_loop.h"
#include "base/synchronization/waitable_event.h"
#include "base/test/test_message_loop.h"
#include "base/test/test_timeouts.h"
#include "base/threading/thread_task_runner_handle.h"
#include "base/time/time.h"
#include "chromeos/ash/components/audio/cras_audio_handler.h"
#include "chromeos/ash/components/dbus/audio/cras_audio_client.h"
#include "media/audio/audio_device_description.h"
#include "media/audio/cras/audio_manager_chromeos.h"
#include "media/audio/fake_audio_log_factory.h"
#include "media/audio/mock_audio_source_callback.h"
#include "media/audio/test_audio_thread.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
// cras_util.h defines custom min/max macros which break compilation, so ensure
// it's not included until last. #if avoids presubmit errors.
#if defined(USE_CRAS)
#include "media/audio/cras/cras_unified.h"
#endif
using testing::_;
using testing::DoAll;
using testing::InvokeWithoutArgs;
using testing::Return;
using testing::SetArgPointee;
using testing::StrictMock;
namespace media {
class MockAudioManagerCras : public AudioManagerChromeOS {
public:
MockAudioManagerCras()
: AudioManagerChromeOS(std::make_unique<TestAudioThread>(),
&fake_audio_log_factory_) {}
// 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.
void ReleaseOutputStream(AudioOutputStream* stream) override {
DCHECK(stream);
delete stream;
}
private:
FakeAudioLogFactory fake_audio_log_factory_;
};
class CrasUnifiedStreamTest : public testing::Test {
public:
CrasUnifiedStreamTest(const CrasUnifiedStreamTest&) = delete;
CrasUnifiedStreamTest& operator=(const CrasUnifiedStreamTest&) = delete;
protected:
CrasUnifiedStreamTest() {
ash::CrasAudioClient::InitializeFake();
ash::CrasAudioHandler::InitializeForTesting();
mock_manager_.reset(new StrictMock<MockAudioManagerCras>());
base::RunLoop().RunUntilIdle();
}
~CrasUnifiedStreamTest() override {
mock_manager_->Shutdown();
ash::CrasAudioHandler::Shutdown();
ash::CrasAudioClient::Shutdown();
}
CrasUnifiedStream* CreateStream(ChannelLayout layout) {
return CreateStream(layout, kTestFramesPerPacket);
}
CrasUnifiedStream* CreateStream(ChannelLayout layout,
int32_t samples_per_packet) {
AudioParameters params(kTestFormat, layout, kTestSampleRate,
samples_per_packet);
return new CrasUnifiedStream(params, mock_manager_.get(),
AudioDeviceDescription::kDefaultDeviceId);
}
MockAudioManagerCras& mock_manager() {
return *(mock_manager_.get());
}
static const ChannelLayout kTestChannelLayout;
static const int kTestSampleRate;
static const AudioParameters::Format kTestFormat;
static const uint32_t kTestFramesPerPacket;
base::TestMessageLoop message_loop_;
std::unique_ptr<StrictMock<MockAudioManagerCras>> mock_manager_;
};
const ChannelLayout CrasUnifiedStreamTest::kTestChannelLayout =
CHANNEL_LAYOUT_STEREO;
const int CrasUnifiedStreamTest::kTestSampleRate =
AudioParameters::kAudioCDSampleRate;
const AudioParameters::Format CrasUnifiedStreamTest::kTestFormat =
AudioParameters::AUDIO_PCM_LINEAR;
const uint32_t CrasUnifiedStreamTest::kTestFramesPerPacket = 1000;
TEST_F(CrasUnifiedStreamTest, ConstructedState) {
CrasUnifiedStream* test_stream = CreateStream(kTestChannelLayout);
EXPECT_TRUE(test_stream->Open());
test_stream->Close();
// Should support mono.
test_stream = CreateStream(CHANNEL_LAYOUT_MONO);
EXPECT_TRUE(test_stream->Open());
test_stream->Close();
// Should support multi-channel.
test_stream = CreateStream(CHANNEL_LAYOUT_SURROUND);
EXPECT_TRUE(test_stream->Open());
test_stream->Close();
// Bad sample rate.
AudioParameters bad_rate_params(kTestFormat, kTestChannelLayout, 0,
kTestFramesPerPacket);
test_stream = new CrasUnifiedStream(bad_rate_params, mock_manager_.get(),
AudioDeviceDescription::kDefaultDeviceId);
EXPECT_FALSE(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(base::WaitableEvent::ResetPolicy::AUTOMATIC,
base::WaitableEvent::InitialState::NOT_SIGNALED);
EXPECT_CALL(mock_callback, OnMoreData(_, _, 0, _))
.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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