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// 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/basictypes.h"
#include "base/bind.h"
#include "base/message_loop.h"
#include "base/synchronization/waitable_event.h"
#include "base/test/test_timeouts.h"
#include "media/audio/audio_input_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;
namespace media {
static const int kSampleRate = AudioParameters::kAudioCDSampleRate;
static const int kBitsPerSample = 16;
static const ChannelLayout kChannelLayout = CHANNEL_LAYOUT_STEREO;
static const int kSamplesPerPacket = kSampleRate / 10;
// Posts base::MessageLoop::QuitClosure() on specified message loop.
ACTION_P(QuitMessageLoop, loop_or_proxy) {
loop_or_proxy->PostTask(FROM_HERE, base::MessageLoop::QuitClosure());
}
// Posts base::MessageLoop::QuitClosure() on specified message loop after a
// certain number of calls given by |limit|.
ACTION_P3(CheckCountAndPostQuitTask, count, limit, loop_or_proxy) {
if (++*count >= limit) {
loop_or_proxy->PostTask(FROM_HERE, base::MessageLoop::QuitClosure());
}
}
// Closes AudioOutputController synchronously.
static void CloseAudioController(AudioInputController* controller) {
controller->Close(base::MessageLoop::QuitClosure());
base::MessageLoop::current()->Run();
}
class MockAudioInputControllerEventHandler
: public AudioInputController::EventHandler {
public:
MockAudioInputControllerEventHandler() {}
MOCK_METHOD1(OnCreated, void(AudioInputController* controller));
MOCK_METHOD1(OnRecording, void(AudioInputController* controller));
MOCK_METHOD1(OnError, void(AudioInputController* controller));
MOCK_METHOD3(OnData, void(AudioInputController* controller,
const uint8* data, uint32 size));
private:
DISALLOW_COPY_AND_ASSIGN(MockAudioInputControllerEventHandler);
};
// Test fixture.
class AudioInputControllerTest : public testing::Test {
public:
AudioInputControllerTest() {}
virtual ~AudioInputControllerTest() {}
protected:
base::MessageLoop message_loop_;
private:
DISALLOW_COPY_AND_ASSIGN(AudioInputControllerTest);
};
// Test AudioInputController for create and close without recording audio.
TEST_F(AudioInputControllerTest, CreateAndClose) {
MockAudioInputControllerEventHandler event_handler;
// OnCreated() will be posted once.
EXPECT_CALL(event_handler, OnCreated(NotNull()))
.WillOnce(QuitMessageLoop(&message_loop_));
scoped_ptr<AudioManager> audio_manager(AudioManager::Create());
AudioParameters params(AudioParameters::AUDIO_FAKE, kChannelLayout,
kSampleRate, kBitsPerSample, kSamplesPerPacket);
scoped_refptr<AudioInputController> controller =
AudioInputController::Create(audio_manager.get(), &event_handler, params);
ASSERT_TRUE(controller.get());
// Wait for OnCreated() to fire.
message_loop_.Run();
// Close the AudioInputController synchronously.
CloseAudioController(controller.get());
}
// Test a normal call sequence of create, record and close.
TEST_F(AudioInputControllerTest, RecordAndClose) {
MockAudioInputControllerEventHandler event_handler;
int count = 0;
// OnCreated() will be called once.
EXPECT_CALL(event_handler, OnCreated(NotNull()))
.Times(Exactly(1));
// OnRecording() will be called only once.
EXPECT_CALL(event_handler, OnRecording(NotNull()))
.Times(Exactly(1));
// OnData() shall be called ten times.
EXPECT_CALL(event_handler, OnData(NotNull(), NotNull(), _))
.Times(AtLeast(10))
.WillRepeatedly(CheckCountAndPostQuitTask(&count, 10,
message_loop_.message_loop_proxy()));
scoped_ptr<AudioManager> audio_manager(AudioManager::Create());
AudioParameters params(AudioParameters::AUDIO_FAKE, kChannelLayout,
kSampleRate, kBitsPerSample, kSamplesPerPacket);
// Creating the AudioInputController should render an OnCreated() call.
scoped_refptr<AudioInputController> controller =
AudioInputController::Create(audio_manager.get(), &event_handler, params);
ASSERT_TRUE(controller.get());
// Start recording and trigger one OnRecording() call.
controller->Record();
// Record and wait until ten OnData() callbacks are received.
message_loop_.Run();
// Close the AudioInputController synchronously.
CloseAudioController(controller.get());
}
// Test that the AudioInputController reports an error when the input stream
// stops without an OnClose() callback. This can happen when the underlying
// audio layer stops feeding data as a result of a removed microphone device.
TEST_F(AudioInputControllerTest, RecordAndError) {
MockAudioInputControllerEventHandler event_handler;
int count = 0;
// OnCreated() will be called once.
EXPECT_CALL(event_handler, OnCreated(NotNull()))
.Times(Exactly(1));
// OnRecording() will be called only once.
EXPECT_CALL(event_handler, OnRecording(NotNull()))
.Times(Exactly(1));
// OnData() shall be called ten times.
EXPECT_CALL(event_handler, OnData(NotNull(), NotNull(), _))
.Times(AtLeast(10))
.WillRepeatedly(CheckCountAndPostQuitTask(&count, 10,
message_loop_.message_loop_proxy()));
// OnError() will be called after the data stream stops while the
// controller is in a recording state.
EXPECT_CALL(event_handler, OnError(NotNull()))
.Times(Exactly(1))
.WillOnce(QuitMessageLoop(&message_loop_));
scoped_ptr<AudioManager> audio_manager(AudioManager::Create());
AudioParameters params(AudioParameters::AUDIO_FAKE, kChannelLayout,
kSampleRate, kBitsPerSample, kSamplesPerPacket);
// Creating the AudioInputController should render an OnCreated() call.
scoped_refptr<AudioInputController> controller =
AudioInputController::Create(audio_manager.get(), &event_handler, params);
ASSERT_TRUE(controller.get());
// Start recording and trigger one OnRecording() call.
controller->Record();
// Record and wait until ten OnData() callbacks are received.
message_loop_.Run();
// Stop the stream and verify that OnError() is posted.
AudioInputStream* stream = controller->stream_for_testing();
stream->Stop();
message_loop_.Run();
// Close the AudioInputController synchronously.
CloseAudioController(controller.get());
}
// Test that AudioInputController rejects insanely large packet sizes.
TEST_F(AudioInputControllerTest, SamplesPerPacketTooLarge) {
// Create an audio device with a very large packet size.
MockAudioInputControllerEventHandler event_handler;
// OnCreated() shall not be called in this test.
EXPECT_CALL(event_handler, OnCreated(NotNull()))
.Times(Exactly(0));
scoped_ptr<AudioManager> audio_manager(AudioManager::Create());
AudioParameters params(AudioParameters::AUDIO_FAKE, kChannelLayout,
kSampleRate, kBitsPerSample, kSamplesPerPacket * 1000);
scoped_refptr<AudioInputController> controller =
AudioInputController::Create(audio_manager.get(), &event_handler, params);
ASSERT_FALSE(controller.get());
}
// Test calling AudioInputController::Close multiple times.
TEST_F(AudioInputControllerTest, CloseTwice) {
MockAudioInputControllerEventHandler event_handler;
// OnRecording() will be called only once.
EXPECT_CALL(event_handler, OnCreated(NotNull()));
// OnRecording() will be called only once.
EXPECT_CALL(event_handler, OnRecording(NotNull()))
.Times(Exactly(1));
scoped_ptr<AudioManager> audio_manager(AudioManager::Create());
AudioParameters params(AudioParameters::AUDIO_FAKE, kChannelLayout,
kSampleRate, kBitsPerSample, kSamplesPerPacket);
scoped_refptr<AudioInputController> controller =
AudioInputController::Create(audio_manager.get(), &event_handler, params);
ASSERT_TRUE(controller.get());
controller->Record();
controller->Close(base::MessageLoop::QuitClosure());
base::MessageLoop::current()->Run();
controller->Close(base::MessageLoop::QuitClosure());
base::MessageLoop::current()->Run();
}
} // namespace media
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