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// Copyright (c) 2010 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/environment.h"
#include "base/basictypes.h"
#include "base/waitable_event.h"
#include "media/audio/audio_output_controller.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
using ::testing::_;
using ::testing::AtLeast;
using ::testing::Exactly;
using ::testing::InvokeWithoutArgs;
using ::testing::NotNull;
using ::testing::Return;
static const int kSampleRate = AudioManager::kAudioCDSampleRate;
static const int kBitsPerSample = 16;
static const int kChannels = 2;
static const int kHardwareBufferSize = kSampleRate * kBitsPerSample *
kChannels / 8;
static const int kBufferCapacity = 3 * kHardwareBufferSize;
namespace media {
class MockAudioOutputControllerEventHandler
: public AudioOutputController::EventHandler {
public:
MockAudioOutputControllerEventHandler() {}
MOCK_METHOD1(OnCreated, void(AudioOutputController* controller));
MOCK_METHOD1(OnPlaying, void(AudioOutputController* controller));
MOCK_METHOD1(OnPaused, void(AudioOutputController* controller));
MOCK_METHOD2(OnError, void(AudioOutputController* controller,
int error_code));
MOCK_METHOD3(OnMoreData,
void(AudioOutputController* controller,
base::Time timestamp, uint32 pending_bytes));
private:
DISALLOW_COPY_AND_ASSIGN(MockAudioOutputControllerEventHandler);
};
class MockAudioOutputControllerSyncReader
: public AudioOutputController::SyncReader {
public:
MockAudioOutputControllerSyncReader() {}
MOCK_METHOD1(UpdatePendingBytes, void(uint32 bytes));
MOCK_METHOD2(Read, uint32(void* data, uint32 size));
MOCK_METHOD0(Close, void());
private:
DISALLOW_COPY_AND_ASSIGN(MockAudioOutputControllerSyncReader);
};
static bool HasAudioOutputDevices() {
AudioManager* audio_man = AudioManager::GetAudioManager();
CHECK(audio_man);
return audio_man->HasAudioOutputDevices();
}
static bool IsRunningHeadless() {
scoped_ptr<base::Environment> env(base::Environment::Create());
if (env->HasVar("CHROME_HEADLESS"))
return true;
return false;
}
ACTION_P(SignalEvent, event) {
event->Signal();
}
ACTION_P3(SignalEvent, event, count, limit) {
if (++*count >= limit) {
event->Signal();
}
}
TEST(AudioOutputControllerTest, CreateAndClose) {
if (!HasAudioOutputDevices() || IsRunningHeadless())
return;
MockAudioOutputControllerEventHandler event_handler;
scoped_refptr<AudioOutputController> controller =
AudioOutputController::Create(&event_handler,
AudioManager::AUDIO_PCM_LINEAR, kChannels,
kSampleRate, kBitsPerSample,
kHardwareBufferSize, kBufferCapacity);
ASSERT_TRUE(controller.get());
// Close the controller immediately. At this point, chances are that
// DoCreate() hasn't been called yet. In any case, it should be safe to call
// Close() and it should not try to call |event_handler| later (the test
// would crash otherwise).
controller->Close();
}
TEST(AudioOutputControllerTest, PlayAndClose) {
if (!HasAudioOutputDevices() || IsRunningHeadless())
return;
MockAudioOutputControllerEventHandler event_handler;
base::WaitableEvent event(false, false);
int count = 0;
// If OnCreated is called then signal the event.
EXPECT_CALL(event_handler, OnCreated(NotNull()))
.WillOnce(SignalEvent(&event));
// OnPlaying() will be called only once.
EXPECT_CALL(event_handler, OnPlaying(NotNull()))
.Times(Exactly(1));
// If OnMoreData is called enough then signal the event.
EXPECT_CALL(event_handler, OnMoreData(NotNull(), _, 0))
.Times(AtLeast(10))
.WillRepeatedly(SignalEvent(&event, &count, 10));
scoped_refptr<AudioOutputController> controller =
AudioOutputController::Create(&event_handler,
AudioManager::AUDIO_PCM_LINEAR, kChannels,
kSampleRate, kBitsPerSample,
kHardwareBufferSize, kBufferCapacity);
ASSERT_TRUE(controller.get());
// Wait for OnCreated() to be called.
event.Wait();
// Play and then wait for the event to be signaled.
controller->Play();
event.Wait();
// Now stop the controller. The object is freed later after DoClose() is
// executed.
controller->Close();
}
TEST(AudioOutputControllerTest, PlayPauseClose) {
if (!HasAudioOutputDevices() || IsRunningHeadless())
return;
MockAudioOutputControllerEventHandler event_handler;
base::WaitableEvent event(false, false);
int count = 0;
// If OnCreated is called then signal the event.
EXPECT_CALL(event_handler, OnCreated(NotNull()))
.Times(Exactly(1))
.WillOnce(InvokeWithoutArgs(&event, &base::WaitableEvent::Signal));
// OnPlaying() will be called only once.
EXPECT_CALL(event_handler, OnPlaying(NotNull()))
.Times(Exactly(1));
// If OnMoreData is called enough then signal the event.
EXPECT_CALL(event_handler, OnMoreData(NotNull(), _, 0))
.Times(AtLeast(10))
.WillRepeatedly(SignalEvent(&event, &count, 10));
// And then OnPaused() will be called.
EXPECT_CALL(event_handler, OnPaused(NotNull()))
.Times(Exactly(1))
.WillOnce(InvokeWithoutArgs(&event, &base::WaitableEvent::Signal));
scoped_refptr<AudioOutputController> controller =
AudioOutputController::Create(&event_handler,
AudioManager::AUDIO_PCM_LINEAR, kChannels,
kSampleRate, kBitsPerSample,
kHardwareBufferSize, kBufferCapacity);
ASSERT_TRUE(controller.get());
// Wait for OnCreated() to be called.
event.Wait();
event.Reset();
// Play and then wait for the event to be signaled.
controller->Play();
event.Wait();
event.Reset();
// And then wait for pause to complete.
controller->Pause();
event.Wait();
// Now stop the controller. The object is freed later after DoClose() is
// executed.
controller->Close();
}
TEST(AudioOutputControllerTest, PlayPausePlay) {
if (!HasAudioOutputDevices() || IsRunningHeadless())
return;
MockAudioOutputControllerEventHandler event_handler;
base::WaitableEvent event(false, false);
int count = 0;
// If OnCreated is called then signal the event.
EXPECT_CALL(event_handler, OnCreated(NotNull()))
.Times(Exactly(1))
.WillOnce(InvokeWithoutArgs(&event, &base::WaitableEvent::Signal));
// OnPlaying() will be called only once.
EXPECT_CALL(event_handler, OnPlaying(NotNull()))
.Times(Exactly(1))
.RetiresOnSaturation();
// If OnMoreData() is called enough then signal the event.
EXPECT_CALL(event_handler, OnMoreData(NotNull(), _, 0))
.Times(AtLeast(10))
.WillRepeatedly(SignalEvent(&event, &count, 10));
// And then OnPaused() will be called.
EXPECT_CALL(event_handler, OnPaused(NotNull()))
.Times(Exactly(1))
.WillOnce(InvokeWithoutArgs(&event, &base::WaitableEvent::Signal));
// OnPlaying() will be called only once.
EXPECT_CALL(event_handler, OnPlaying(NotNull()))
.Times(Exactly(1))
.RetiresOnSaturation();
scoped_refptr<AudioOutputController> controller =
AudioOutputController::Create(&event_handler,
AudioManager::AUDIO_PCM_LINEAR, kChannels,
kSampleRate, kBitsPerSample,
kHardwareBufferSize, kBufferCapacity);
ASSERT_TRUE(controller.get());
// Wait for OnCreated() to be called.
event.Wait();
event.Reset();
// Play and then wait for the event to be signaled.
controller->Play();
event.Wait();
event.Reset();
// And then wait for pause to complete.
controller->Pause();
event.Wait();
event.Reset();
// Then we play again.
// Play and then wait for the event to be signaled.
controller->Play();
event.Wait();
// Now stop the controller. The object is freed later after DoClose() is
// executed.
controller->Close();
}
TEST(AudioOutputControllerTest, HardwareBufferTooLarge) {
if (!HasAudioOutputDevices() || IsRunningHeadless())
return;
// Create an audio device with a very large hardware buffer size.
MockAudioOutputControllerEventHandler event_handler;
scoped_refptr<AudioOutputController> controller =
AudioOutputController::Create(&event_handler,
AudioManager::AUDIO_PCM_LINEAR, kChannels,
kSampleRate, kBitsPerSample,
kHardwareBufferSize * 1000,
kBufferCapacity);
// Use assert because we don't stop the device and assume we can't
// create one.
ASSERT_FALSE(controller);
}
TEST(AudioOutputControllerTest, CloseTwice) {
if (!HasAudioOutputDevices() || IsRunningHeadless())
return;
MockAudioOutputControllerEventHandler event_handler;
base::WaitableEvent event(false, false);
// If OnCreated is called then signal the event.
EXPECT_CALL(event_handler, OnCreated(NotNull()))
.WillOnce(SignalEvent(&event));
// One OnMoreData() is expected.
EXPECT_CALL(event_handler, OnMoreData(NotNull(), _, 0))
.Times(AtLeast(1))
.WillRepeatedly(SignalEvent(&event));
scoped_refptr<AudioOutputController> controller =
AudioOutputController::Create(&event_handler,
AudioManager::AUDIO_PCM_LINEAR, kChannels,
kSampleRate, kBitsPerSample,
kHardwareBufferSize, kBufferCapacity);
ASSERT_TRUE(controller.get());
// Wait for OnCreated() to be called.
event.Wait();
// Wait for OnMoreData() to be called.
event.Wait();
controller->Close();
controller->Close();
}
} // namespace media
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