mock_audio_manager.h revision 5d1f7b1de12d16ceb2c938c56701a3e8bfa558f7
1// Copyright (c) 2012 The Chromium Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style license that can be 3// found in the LICENSE file. 4 5#ifndef MEDIA_AUDIO_MOCK_AUDIO_MANAGER_H_ 6#define MEDIA_AUDIO_MOCK_AUDIO_MANAGER_H_ 7 8#include "media/audio/audio_manager.h" 9 10namespace media { 11 12// This class is a simple mock around AudioManager, used exclusively for tests, 13// which has the following purposes: 14// 1) Avoids to use the actual (system and platform dependent) AudioManager. 15// Some bots does not have input devices, thus using the actual AudioManager 16// would causing failures on classes which expect that. 17// 2) Allows the mock audio events to be dispatched on an arbitrary thread, 18// rather than forcing them on the audio thread, easing their handling in 19// browser tests (Note: sharing a thread can cause deadlocks on production 20// classes if WaitableEvents or any other form of lock is used for 21// synchronization purposes). 22class MockAudioManager : public media::AudioManager { 23 public: 24 explicit MockAudioManager( 25 const scoped_refptr<base::SingleThreadTaskRunner>& task_runner); 26 27 virtual bool HasAudioOutputDevices() OVERRIDE; 28 29 virtual bool HasAudioInputDevices() OVERRIDE; 30 31 virtual base::string16 GetAudioInputDeviceModel() OVERRIDE; 32 33 virtual void ShowAudioInputSettings() OVERRIDE; 34 35 virtual void GetAudioInputDeviceNames( 36 media::AudioDeviceNames* device_names) OVERRIDE; 37 38 virtual void GetAudioOutputDeviceNames( 39 media::AudioDeviceNames* device_names) OVERRIDE; 40 41 virtual media::AudioOutputStream* MakeAudioOutputStream( 42 const media::AudioParameters& params, 43 const std::string& device_id) OVERRIDE; 44 45 virtual media::AudioOutputStream* MakeAudioOutputStreamProxy( 46 const media::AudioParameters& params, 47 const std::string& device_id) OVERRIDE; 48 49 virtual media::AudioInputStream* MakeAudioInputStream( 50 const media::AudioParameters& params, 51 const std::string& device_id) OVERRIDE; 52 53 virtual scoped_refptr<base::SingleThreadTaskRunner> GetTaskRunner() OVERRIDE; 54 virtual scoped_refptr<base::SingleThreadTaskRunner> GetWorkerTaskRunner() 55 OVERRIDE; 56 57 virtual void AddOutputDeviceChangeListener( 58 AudioDeviceListener* listener) OVERRIDE; 59 virtual void RemoveOutputDeviceChangeListener( 60 AudioDeviceListener* listener) OVERRIDE; 61 62 virtual AudioParameters GetDefaultOutputStreamParameters() OVERRIDE; 63 virtual AudioParameters GetOutputStreamParameters( 64 const std::string& device_id) OVERRIDE; 65 virtual AudioParameters GetInputStreamParameters( 66 const std::string& device_id) OVERRIDE; 67 virtual std::string GetAssociatedOutputDeviceID( 68 const std::string& input_device_id) OVERRIDE; 69 70 virtual scoped_ptr<AudioLog> CreateAudioLog( 71 AudioLogFactory::AudioComponent component) OVERRIDE; 72 73 virtual void FixWedgedAudio() OVERRIDE; 74 75 protected: 76 virtual ~MockAudioManager(); 77 78 private: 79 scoped_refptr<base::SingleThreadTaskRunner> task_runner_; 80 81 DISALLOW_COPY_AND_ASSIGN(MockAudioManager); 82}; 83 84} // namespace media. 85 86#endif // MEDIA_AUDIO_MOCK_AUDIO_MANAGER_H_ 87