Converted remaining tests to use gmock and deleted all old mocking code.

media/base/mock_filters.h

 // 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.
@@ skipping 32 matching lines @@
   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_;
@@ skipping 84 matching lines @@
 
  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()
-      : data_source_(new MockDataSource()),
+      : 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_