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 SetHasKeyboardMic() 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