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// Copyright (c) 2011 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/synchronization/waitable_event.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 int kChannels = 2;
static const ChannelLayout kChannelLayout = CHANNEL_LAYOUT_STEREO;
static const int kSamplesPerPacket = kSampleRate / 10;
ACTION_P3(CheckCountAndSignalEvent, count, limit, event) {
if (++*count >= limit) {
event->Signal();
}
}
class MockAudioInputControllerEventHandler
: public AudioInputController::EventHandler {
public:
MockAudioInputControllerEventHandler() {}
MOCK_METHOD1(OnCreated, void(AudioInputController* controller));
MOCK_METHOD1(OnRecording, void(AudioInputController* controller));
MOCK_METHOD2(OnError, void(AudioInputController* controller, int error_code));
MOCK_METHOD3(OnData, void(AudioInputController* controller,
const uint8* data, uint32 size));
private:
DISALLOW_COPY_AND_ASSIGN(MockAudioInputControllerEventHandler);
};
// Test AudioInputController for create and close without recording audio.
TEST(AudioInputControllerTest, CreateAndClose) {
MockAudioInputControllerEventHandler event_handler;
base::WaitableEvent event(false, false);
// If OnCreated is called then signal the event.
EXPECT_CALL(event_handler, OnCreated(NotNull()))
.WillOnce(InvokeWithoutArgs(&event, &base::WaitableEvent::Signal));
AudioParameters params(AudioParameters::AUDIO_MOCK, kChannelLayout,
kSampleRate, kBitsPerSample, kSamplesPerPacket);
scoped_refptr<AudioInputController> controller =
AudioInputController::Create(&event_handler, params);
ASSERT_TRUE(controller.get());
// Wait for OnCreated() to be called.
event.Wait();
controller->Close();
}
// Test a normal call sequence of create, record and close.
TEST(AudioInputControllerTest, RecordAndClose) {
MockAudioInputControllerEventHandler 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(InvokeWithoutArgs(&event, &base::WaitableEvent::Signal));
// OnRecording() will be called only once.
EXPECT_CALL(event_handler, OnRecording(NotNull()))
.Times(Exactly(1));
// If OnData is called enough then signal the event.
EXPECT_CALL(event_handler, OnData(NotNull(), NotNull(), _))
.Times(AtLeast(10))
.WillRepeatedly(CheckCountAndSignalEvent(&count, 10, &event));
AudioParameters params(AudioParameters::AUDIO_MOCK, kChannelLayout,
kSampleRate, kBitsPerSample, kSamplesPerPacket);
scoped_refptr<AudioInputController> controller =
AudioInputController::Create(&event_handler, params);
ASSERT_TRUE(controller.get());
// Wait for OnCreated() to be called.
event.Wait();
event.Reset();
// Record and then wait for the event to be signaled.
controller->Record();
event.Wait();
controller->Close();
}
// Test that the AudioInputController reports an error when the input stream
// stops without an OnClose callback.
TEST(AudioInputControllerTest, RecordAndError) {
MockAudioInputControllerEventHandler 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(InvokeWithoutArgs(&event, &base::WaitableEvent::Signal));
// OnRecording() will be called only once.
EXPECT_CALL(event_handler, OnRecording(NotNull()))
.Times(Exactly(1));
// If OnData is called enough then signal the event.
EXPECT_CALL(event_handler, OnData(NotNull(), NotNull(), _))
.Times(AtLeast(10))
.WillRepeatedly(CheckCountAndSignalEvent(&count, 10, &event));
// OnError will be called after the data stream stops.
EXPECT_CALL(event_handler, OnError(NotNull(), 0))
.WillOnce(InvokeWithoutArgs(&event, &base::WaitableEvent::Signal));
AudioParameters params(AudioParameters::AUDIO_MOCK, kChannelLayout,
kSampleRate, kBitsPerSample, kSamplesPerPacket);
scoped_refptr<AudioInputController> controller =
AudioInputController::Create(&event_handler, params);
ASSERT_TRUE(controller.get());
// Wait for OnCreated() to be called.
event.Wait();
event.Reset();
// Record and then wait for the event to be signaled.
controller->Record();
event.Wait();
event.Reset();
// Wait for the stream to be stopped.
AudioInputStream* stream = controller->stream_for_testing();
stream->Stop();
event.Wait();
controller->Close();
}
// Test that AudioInputController rejects insanely large packet sizes.
TEST(AudioInputControllerTest, SamplesPerPacketTooLarge) {
// Create an audio device with a very large packet size.
MockAudioInputControllerEventHandler event_handler;
AudioParameters params(AudioParameters::AUDIO_MOCK, kChannelLayout,
kSampleRate, kBitsPerSample, kSamplesPerPacket * 1000);
scoped_refptr<AudioInputController> controller = AudioInputController::Create(
&event_handler, params);
ASSERT_FALSE(controller);
}
// Test calling AudioInputController::Close multiple times.
TEST(AudioInputControllerTest, CloseTwice) {
MockAudioInputControllerEventHandler event_handler;
EXPECT_CALL(event_handler, OnCreated(NotNull()));
AudioParameters params(AudioParameters::AUDIO_MOCK, kChannelLayout,
kSampleRate, kBitsPerSample, kSamplesPerPacket);
scoped_refptr<AudioInputController> controller =
AudioInputController::Create(&event_handler, params);
ASSERT_TRUE(controller.get());
controller->Close();
controller->Close();
}
} // namespace media
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