Remove the AudioManager singleton.

content/browser/renderer_host/media/audio_input_device_manager_unittest.cc

 // Copyright (c) 2011 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 <string>
 
 #include "base/bind.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop.h"
 #include "content/browser/browser_thread_impl.h"
 #include "content/browser/renderer_host/media/audio_input_device_manager.h"
 #include "content/browser/renderer_host/media/audio_input_device_manager_event_handler.h"
 #include "media/audio/audio_manager_base.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
-using ::testing::_;
-using ::testing::AnyNumber;
-using ::testing::InSequence;
-using ::testing::Return;
 using content::BrowserThread;
-
 using content::BrowserThreadImpl;
+using media_stream::AudioInputDeviceManager;
+using testing::_;
+using testing::AnyNumber;
+using testing::InSequence;
+using testing::Return;
 
 namespace media_stream {
 
 class MockAudioInputDeviceManagerListener
     : public MediaStreamProviderListener {
  public:
   MockAudioInputDeviceManagerListener() {}
   virtual ~MockAudioInputDeviceManagerListener() {}
 
   MOCK_METHOD2(Opened, void(MediaStreamType, const int));
@@ skipping 39 matching lines @@
         FROM_HERE, base::Bind(
             &MockAudioInputDeviceManagerEventHandler::DeviceStopped,
             base::Unretained(this), session_id));
   }
 
  private:
   MessageLoop* message_loop_;
   DISALLOW_COPY_AND_ASSIGN(MockAudioInputDeviceManagerEventHandler);
 };
 
-// Returns true if machine has audio input device, else returns false.
-static bool CanRunAudioInputDeviceTests() {
-  AudioManager* audio_manager = AudioManager::GetAudioManager();
-  if (!audio_manager)
-    return false;
-
-  return audio_manager->HasAudioInputDevices();
-}
-
 ACTION_P(ExitMessageLoop, message_loop) {
   message_loop->PostTask(FROM_HERE, MessageLoop::QuitClosure());
 }
 
-class AudioInputDeviceManagerTest: public testing::Test {
+class AudioInputDeviceManagerTest : public testing::Test {
  public:
   AudioInputDeviceManagerTest()
       : message_loop_(),
         io_thread_(),
         manager_(),
-        audio_input_listener_() {}
+        audio_input_listener_() {
+  }
+
+  // Returns true iff machine has an audio input device.
+  bool CanRunAudioInputDeviceTests() {
+    return audio_manager_->HasAudioInputDevices();
+  }
 
  protected:
   virtual void SetUp() {
     // The test must run on Browser::IO.
     message_loop_.reset(new MessageLoop(MessageLoop::TYPE_IO));
     io_thread_.reset(new BrowserThreadImpl(BrowserThread::IO,
                                            message_loop_.get()));
-    manager_.reset(new media_stream::AudioInputDeviceManager());
+    audio_manager_ = AudioManager::Create();
+
+    manager_.reset(new AudioInputDeviceManager(audio_manager_));
     audio_input_listener_.reset(new MockAudioInputDeviceManagerListener());
     manager_->Register(audio_input_listener_.get());
 
     // Gets the enumerated device list from the AudioInputDeviceManager.
     manager_->EnumerateDevices();
     EXPECT_CALL(*audio_input_listener_, DevicesEnumerated(_))
         .Times(1);
 
     // Waits for the callback.
     message_loop_->RunAllPending();
   }
 
   virtual void TearDown() {
     manager_->Unregister();
     io_thread_.reset();
   }
 
   scoped_ptr<MessageLoop> message_loop_;
   scoped_ptr<BrowserThreadImpl> io_thread_;
   scoped_ptr<AudioInputDeviceManager> manager_;
   scoped_ptr<MockAudioInputDeviceManagerListener> audio_input_listener_;
+  scoped_refptr<AudioManager> audio_manager_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(AudioInputDeviceManagerTest);
 };
 
 // Opens and closes the devices.
 TEST_F(AudioInputDeviceManagerTest, OpenAndCloseDevice) {
   if (!CanRunAudioInputDeviceTests())
     return;
+
+  ASSERT_FALSE(audio_input_listener_->devices_.empty());
+
   InSequence s;
 
   for (StreamDeviceInfoArray::const_iterator iter =
        audio_input_listener_->devices_.begin();
        iter != audio_input_listener_->devices_.end(); ++iter) {
     // Opens/closes the devices.
     int session_id = manager_->Open(*iter);
     manager_->Close(session_id);
 
     // Expected mock call with expected return value.
     EXPECT_CALL(*audio_input_listener_, Opened(kAudioCapture, session_id))
         .Times(1);
     EXPECT_CALL(*audio_input_listener_, Closed(kAudioCapture, session_id))
         .Times(1);
 
     // Waits for the callback.
     message_loop_->RunAllPending();
   }
 }
 
 // Opens multiple devices at one time and closes them later.
 TEST_F(AudioInputDeviceManagerTest, OpenMultipleDevices) {
   if (!CanRunAudioInputDeviceTests())
     return;
+
+  ASSERT_FALSE(audio_input_listener_->devices_.empty());
+
   InSequence s;
 
   int index = 0;
   const int kDeviceSize = audio_input_listener_->devices_.size();
   scoped_array<int> session_id(new int[kDeviceSize]);
 
   // Opens the devices in a loop.
   for (StreamDeviceInfoArray::const_iterator iter =
        audio_input_listener_->devices_.begin();
        iter != audio_input_listener_->devices_.end(); ++iter, ++index) {
@@ skipping 43 matching lines @@
       .Times(1);
 
   // Waits for the callback.
   message_loop_->RunAllPending();
 }
 
 // Opens default device twice.
 TEST_F(AudioInputDeviceManagerTest, OpenDeviceTwice) {
   if (!CanRunAudioInputDeviceTests())
     return;
+
+  ASSERT_FALSE(audio_input_listener_->devices_.empty());
+
   InSequence s;
 
   // Opens and closes the default device twice.
   int first_session_id = manager_->Open(
       audio_input_listener_->devices_.front());
   int second_session_id = manager_->Open(
       audio_input_listener_->devices_.front());
   manager_->Close(first_session_id);
   manager_->Close(second_session_id);
 
   // Expected mock calls with expected returned values.
   EXPECT_NE(first_session_id, second_session_id);
   EXPECT_CALL(*audio_input_listener_, Opened(kAudioCapture, first_session_id))
       .Times(1);
   EXPECT_CALL(*audio_input_listener_, Opened(kAudioCapture, second_session_id))
       .Times(1);
   EXPECT_CALL(*audio_input_listener_, Closed(kAudioCapture, first_session_id))
       .Times(1);
   EXPECT_CALL(*audio_input_listener_, Closed(kAudioCapture, second_session_id))
       .Times(1);
 
   // Waits for the callback.
   message_loop_->RunAllPending();
 }
 
 // Starts and closes the sessions after opening the devices.
 TEST_F(AudioInputDeviceManagerTest, StartAndStopSession) {
   if (!CanRunAudioInputDeviceTests())
     return;
+
+  ASSERT_FALSE(audio_input_listener_->devices_.empty());
+
   InSequence s;
 
   int index = 0;
   const int kDeviceSize = audio_input_listener_->devices_.size();
   scoped_array<int> session_id(new int[kDeviceSize]);
 
   // Creates the EventHandler for the sessions.
   scoped_ptr<MockAudioInputDeviceManagerEventHandler>
       audio_input_event_handler(
           new MockAudioInputDeviceManagerEventHandler(message_loop_.get()));
@@ skipping 23 matching lines @@
                                                session_id[index]))
         .Times(1);
     message_loop_->RunAllPending();
   }
 }
 
 // Tests the behavior of calling Close() without calling Stop().
 TEST_F(AudioInputDeviceManagerTest, CloseWithoutStopSession) {
   if (!CanRunAudioInputDeviceTests())
     return;
+
+  ASSERT_FALSE(audio_input_listener_->devices_.empty());
+
   InSequence s;
 
   int index = 0;
   const int kDeviceSize = audio_input_listener_->devices_.size();
   scoped_array<int> session_id(new int[kDeviceSize]);
 
   // Creates the EventHandlers for the sessions.
   scoped_ptr<MockAudioInputDeviceManagerEventHandler>
       audio_input_event_handler(
           new MockAudioInputDeviceManagerEventHandler(message_loop_.get()));
@@ skipping 26 matching lines @@
                                                session_id[index]))
         .Times(1);
     message_loop_->RunAllPending();
   }
 }
 
 // Starts the same device twice.
 TEST_F(AudioInputDeviceManagerTest, StartDeviceTwice) {
   if (!CanRunAudioInputDeviceTests())
     return;
+
+  ASSERT_FALSE(audio_input_listener_->devices_.empty());
+
   InSequence s;
 
   // Create one EventHandler for each session.
   scoped_ptr<MockAudioInputDeviceManagerEventHandler>
       first_event_handler(
           new MockAudioInputDeviceManagerEventHandler(message_loop_.get()));
   scoped_ptr<MockAudioInputDeviceManagerEventHandler>
       second_event_handler(
           new MockAudioInputDeviceManagerEventHandler(message_loop_.get()));
 
@@ skipping 104 matching lines @@
       .Times(1);
 
   manager_->Stop(session_id);
   manager_->Close(session_id);
   EXPECT_CALL(*audio_input_listener_, Closed(kAudioCapture, session_id))
       .Times(1);
   message_loop_->RunAllPending();
 }
 
 }  // namespace media_stream