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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 <vector>
#include "base/at_exit.h"
#include "base/message_loop.h"
#include "content/renderer/media/audio_device.h"
#include "content/renderer/media/audio_message_filter.h"
#include "media/audio/sample_rates.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace {
// Derived from AudioDevice to gain access to the protected constructor.
class TestAudioDevice : public AudioDevice {
public:
explicit TestAudioDevice(const scoped_refptr<base::MessageLoopProxy>& io_loop)
: AudioDevice(io_loop) {}
protected:
virtual ~TestAudioDevice() {}
};
class FakeRenderCallback : public media::AudioRendererSink::RenderCallback {
public:
FakeRenderCallback() {}
virtual ~FakeRenderCallback() {}
virtual int Render(const std::vector<float*>& audio_data,
int number_of_frames,
int audio_delay_milliseconds) OVERRIDE {
NOTIMPLEMENTED();
return 0;
}
virtual void OnRenderError() OVERRIDE {
ADD_FAILURE();
}
};
class FakeAudioMessageFilter : public AudioMessageFilter {
public:
FakeAudioMessageFilter() {}
virtual bool Send(IPC::Message* message) {
// TODO(tommi): Override to simulate message passing.
NOTIMPLEMENTED();
delete message;
return true;
}
protected:
virtual ~FakeAudioMessageFilter() {}
};
} // namespace.
class AudioDeviceTest : public testing::Test {
public:
AudioDeviceTest() {}
~AudioDeviceTest() {}
protected:
// Used to clean up TLS pointers that the test(s) will initialize.
// Must remain the first member of this class.
base::ShadowingAtExitManager at_exit_manager_;
MessageLoopForIO io_loop_;
};
// The simplest test for AudioDevice. Used to test construction of AudioDevice
// and that the runtime environment is set up correctly (e.g. ChildProcess and
// AudioMessageFilter global pointers).
TEST_F(AudioDeviceTest, Initialize) {
FakeRenderCallback callback;
media::AudioParameters audio_parameters(
media::AudioParameters::AUDIO_PCM_LINEAR, CHANNEL_LAYOUT_STEREO,
media::k48000Hz, 16, 1024);
// This sets a global audio_message_filter pointer. AudioDevice will pick
// up a pointer to this variable via the static AudioMessageFilter::Get()
// method.
scoped_refptr<FakeAudioMessageFilter> audio_message_filter =
new FakeAudioMessageFilter();
scoped_refptr<AudioDevice> audio_device(
new TestAudioDevice(io_loop_.message_loop_proxy()));
audio_device->Initialize(audio_parameters, &callback);
}
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