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// Copyright (c) 2009 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.
//
// A new breed of mock media filters, this time using gmock! Feel free to add
// actions if you need interesting side-effects (i.e., copying data to the
// buffer passed into MockDataSource::Read()).
//
// Don't forget you can use StrictMock<> and NiceMock<> if you want the mock
// filters to fail the test or do nothing when an unexpected method is called.
// http://code.google.com/p/googlemock/wiki/CookBook#Nice_Mocks_and_Strict_Mocks
#ifndef MEDIA_BASE_MOCK_FILTERS_H_
#define MEDIA_BASE_MOCK_FILTERS_H_
#include "media/base/factory.h"
#include "media/base/filters.h"
#include "testing/gmock/include/gmock/gmock.h"
namespace media {
// Use this template to test for object destruction by setting expectations on
// the method OnDestroy().
//
// TODO(scherkus): not sure about the naming... perhaps contribute this back
// to gmock itself!
template<class MockClass>
class Destroyable : public MockClass {
public:
Destroyable() {}
MOCK_METHOD0(OnDestroy, void());
protected:
virtual ~Destroyable() {
OnDestroy();
}
private:
DISALLOW_COPY_AND_ASSIGN(Destroyable);
};
class MockDataSource : public DataSource {
public:
MockDataSource() {}
// MediaFilter implementation.
MOCK_METHOD0(Stop, void());
MOCK_METHOD1(SetPlaybackRate, void(float playback_rate));
MOCK_METHOD1(Seek, void(base::TimeDelta time));
// DataSource implementation.
MOCK_METHOD1(Initialize, bool(const std::string& url));
const MediaFormat& media_format() { return media_format_; }
MOCK_METHOD2(Read, size_t(uint8* data, size_t size));
MOCK_METHOD1(GetPosition, bool(int64* position_out));
MOCK_METHOD1(SetPosition, bool(int64 position));
MOCK_METHOD1(GetSize, bool(int64* size_out));
MOCK_METHOD0(IsSeekable, bool());
protected:
virtual ~MockDataSource() {}
private:
MediaFormat media_format_;
DISALLOW_COPY_AND_ASSIGN(MockDataSource);
};
class MockDemuxer : public Demuxer {
public:
MockDemuxer() {}
// MediaFilter implementation.
MOCK_METHOD0(Stop, void());
MOCK_METHOD1(SetPlaybackRate, void(float playback_rate));
MOCK_METHOD1(Seek, void(base::TimeDelta time));
// Demuxer implementation.
MOCK_METHOD1(Initialize, bool(DataSource* data_source));
MOCK_METHOD0(GetNumberOfStreams, size_t());
MOCK_METHOD1(GetStream, scoped_refptr<DemuxerStream>(int stream_id));
protected:
virtual ~MockDemuxer() {}
private:
DISALLOW_COPY_AND_ASSIGN(MockDemuxer);
};
class MockDemuxerStream : public DemuxerStream {
public:
MockDemuxerStream() {}
// Sets the mime type of this object's media format, which is usually checked
// to determine the type of decoder to create.
explicit MockDemuxerStream(const std::string& mime_type) {
media_format_.SetAsString(MediaFormat::kMimeType, mime_type);
}
// DemuxerStream implementation.
const MediaFormat& media_format() { return media_format_; }
MOCK_METHOD1(Read, void(Callback1<Buffer*>::Type* read_callback));
MOCK_METHOD1(QueryInterface, void*(const char* interface_id));
protected:
virtual ~MockDemuxerStream() {}
private:
MediaFormat media_format_;
DISALLOW_COPY_AND_ASSIGN(MockDemuxerStream);
};
class MockVideoDecoder : public VideoDecoder {
public:
MockVideoDecoder() {}
// MediaFilter implementation.
MOCK_METHOD0(Stop, void());
MOCK_METHOD1(SetPlaybackRate, void(float playback_rate));
MOCK_METHOD1(Seek, void(base::TimeDelta time));
// VideoDecoder implementation.
MOCK_METHOD1(Initialize, bool(DemuxerStream* demuxer_stream));
const MediaFormat& media_format() { return media_format_; }
MOCK_METHOD1(Read, void(Callback1<VideoFrame*>::Type* read_callback));
protected:
virtual ~MockVideoDecoder() {}
private:
MediaFormat media_format_;
DISALLOW_COPY_AND_ASSIGN(MockVideoDecoder);
};
class MockAudioDecoder : public AudioDecoder {
public:
MockAudioDecoder() {}
// MediaFilter implementation.
MOCK_METHOD0(Stop, void());
MOCK_METHOD1(SetPlaybackRate, void(float playback_rate));
MOCK_METHOD1(Seek, void(base::TimeDelta time));
// AudioDecoder implementation.
MOCK_METHOD1(Initialize, bool(DemuxerStream* demuxer_stream));
const MediaFormat& media_format() { return media_format_; }
MOCK_METHOD1(Read, void(Callback1<Buffer*>::Type* read_callback));
protected:
virtual ~MockAudioDecoder() {}
private:
MediaFormat media_format_;
DISALLOW_COPY_AND_ASSIGN(MockAudioDecoder);
};
class MockVideoRenderer : public VideoRenderer {
public:
MockVideoRenderer() {}
// MediaFilter implementation.
MOCK_METHOD0(Stop, void());
MOCK_METHOD1(SetPlaybackRate, void(float playback_rate));
MOCK_METHOD1(Seek, void(base::TimeDelta time));
// VideoRenderer implementation.
MOCK_METHOD1(Initialize, bool(VideoDecoder* decoder));
protected:
virtual ~MockVideoRenderer() {}
private:
DISALLOW_COPY_AND_ASSIGN(MockVideoRenderer);
};
class MockAudioRenderer : public AudioRenderer {
public:
MockAudioRenderer() {}
// MediaFilter implementation.
MOCK_METHOD0(Stop, void());
MOCK_METHOD1(SetPlaybackRate, void(float playback_rate));
MOCK_METHOD1(Seek, void(base::TimeDelta time));
// AudioRenderer implementation.
MOCK_METHOD1(Initialize, bool(AudioDecoder* decoder));
MOCK_METHOD1(SetVolume, void(float volume));
protected:
virtual ~MockAudioRenderer() {}
private:
DISALLOW_COPY_AND_ASSIGN(MockAudioRenderer);
};
// FilterFactory that returns canned instances of mock filters. You can set
// expectations on the filters and then pass the factory into a pipeline.
class MockFilterFactory : public FilterFactory {
public:
MockFilterFactory()
: creation_successful_(true),
data_source_(new MockDataSource()),
demuxer_(new MockDemuxer()),
video_decoder_(new MockVideoDecoder()),
audio_decoder_(new MockAudioDecoder()),
video_renderer_(new MockVideoRenderer()),
audio_renderer_(new MockAudioRenderer()) {
}
virtual ~MockFilterFactory() {}
// Controls whether the Create() method is successful or not.
void set_creation_successful(bool creation_successful) {
creation_successful_ = creation_successful;
}
// Mock accessors.
MockDataSource* data_source() const { return data_source_; }
MockDemuxer* demuxer() const { return demuxer_; }
MockVideoDecoder* video_decoder() const { return video_decoder_; }
MockAudioDecoder* audio_decoder() const { return audio_decoder_; }
MockVideoRenderer* video_renderer() const { return video_renderer_; }
MockAudioRenderer* audio_renderer() const { return audio_renderer_; }
protected:
MediaFilter* Create(FilterType filter_type, const MediaFormat& media_format) {
if (!creation_successful_) {
return NULL;
}
switch (filter_type) {
case FILTER_DATA_SOURCE:
return data_source_;
case FILTER_DEMUXER:
return demuxer_;
case FILTER_VIDEO_DECODER:
return video_decoder_;
case FILTER_AUDIO_DECODER:
return audio_decoder_;
case FILTER_VIDEO_RENDERER:
return video_renderer_;
case FILTER_AUDIO_RENDERER:
return audio_renderer_;
default:
NOTREACHED() << "Unknown filter type: " << filter_type;
}
return NULL;
}
private:
bool creation_successful_;
scoped_refptr<MockDataSource> data_source_;
scoped_refptr<MockDemuxer> demuxer_;
scoped_refptr<MockVideoDecoder> video_decoder_;
scoped_refptr<MockAudioDecoder> audio_decoder_;
scoped_refptr<MockVideoRenderer> video_renderer_;
scoped_refptr<MockAudioRenderer> audio_renderer_;
DISALLOW_COPY_AND_ASSIGN(MockFilterFactory);
};
// Helper gmock action that calls InitializationComplete() on behalf of the
// provided filter.
ACTION_P(InitializationComplete, filter) {
filter->host()->InitializationComplete();
}
// Helper gmock action that calls Error() on behalf of the provided filter.
ACTION_P2(Error, filter, error) {
filter->host()->Error(error);
}
} // namespace media
#endif // MEDIA_BASE_MOCK_FILTERS_H_
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