Ensures that audio tasks cannot run after AudioManager is deleted.

media/audio/audio_input_controller_unittest.cc

 // Copyright (c) 2012 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 "media/audio/audio_input_controller.h"
 #include "base/bind.h"
 #include "base/macros.h"
+#include "base/memory/ptr_util.h"
 #include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
 #include "base/synchronization/waitable_event.h"
 #include "base/test/test_timeouts.h"
 #include "base/threading/thread.h"
 #include "media/audio/audio_device_description.h"
-#include "media/audio/audio_input_controller.h"
+#include "media/audio/audio_thread_impl.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using ::testing::_;
 using ::testing::AnyNumber;
 using ::testing::AtLeast;
 using ::testing::Exactly;
 using ::testing::InvokeWithoutArgs;
 using ::testing::NotNull;
 using base::WaitableEvent;
@@ skipping 49 matching lines @@
                     double volume,
                     bool key_pressed,
                     uint32_t hardware_delay_bytes));
   MOCK_METHOD0(Close, void());
 };
 
 // Test fixture.
 class AudioInputControllerTest : public testing::Test {
  public:
   AudioInputControllerTest()
-      : audio_thread_("AudioThread"),
-        suspend_event_(WaitableEvent::ResetPolicy::AUTOMATIC,
+      : suspend_event_(WaitableEvent::ResetPolicy::AUTOMATIC,
                        WaitableEvent::InitialState::NOT_SIGNALED) {
-    audio_thread_.StartAndWaitForTesting();
     audio_manager_ =
-        AudioManager::CreateForTesting(audio_thread_.task_runner());
+        AudioManager::CreateForTesting(base::MakeUnique<AudioThreadImpl>());
   }
-  ~AudioInputControllerTest() override {
-    audio_task_runner()->PostTask(
-        FROM_HERE, base::Bind(&AudioInputControllerTest::DeleteAudioManager,
-                              base::Unretained(this)));
-    audio_thread_.Stop();
-  }
+  ~AudioInputControllerTest() override { audio_manager_->Shutdown(); }
 
   scoped_refptr<base::SingleThreadTaskRunner> audio_task_runner() const {
-    return audio_thread_.task_runner();
+    return audio_manager_->GetTaskRunner();
   }
 
   void SuspendAudioThread() {
     audio_task_runner()->PostTask(
         FROM_HERE, base::Bind(&AudioInputControllerTest::WaitForResume,
                               base::Unretained(this)));
   }
 
   void ResumeAudioThread() { suspend_event_.Signal(); }
 
  private:
-  void DeleteAudioManager() { audio_manager_.reset(); }
   void WaitForResume() { suspend_event_.Wait(); }
 
  protected:
-  base::Thread audio_thread_;
   base::MessageLoop message_loop_;
-  ScopedAudioManagerPtr audio_manager_;
+  std::unique_ptr<AudioManager> audio_manager_;
   WaitableEvent suspend_event_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(AudioInputControllerTest);
 };
 
 // Test AudioInputController for create and close without recording audio.
 TEST_F(AudioInputControllerTest, CreateAndClose) {
   base::RunLoop run_loop;
 
   MockAudioInputControllerEventHandler event_handler;
   MockSyncWriter sync_writer;
   scoped_refptr<AudioInputController> controller;
 
   AudioParameters params(AudioParameters::AUDIO_FAKE, kChannelLayout,
                          kSampleRate, kBitsPerSample, kSamplesPerPacket);
 
   SuspendAudioThread();
   controller = AudioInputController::Create(
       audio_manager_.get(), &event_handler, &sync_writer, nullptr, params,
       AudioDeviceDescription::kDefaultDeviceId, false, audio_task_runner());
   ASSERT_TRUE(controller.get());
   EXPECT_CALL(event_handler, OnCreated(controller.get())).Times(Exactly(1));
   EXPECT_CALL(event_handler, OnLog(controller.get(), _));
   EXPECT_CALL(sync_writer, Close()).Times(Exactly(1));
   ResumeAudioThread();
 
   CloseAudioController(controller.get());
-
-  audio_thread_.FlushForTesting();
 }
 
 // Test a normal call sequence of create, record and close.
 TEST_F(AudioInputControllerTest, RecordAndClose) {
   MockAudioInputControllerEventHandler event_handler;
   MockSyncWriter sync_writer;
   int count = 0;
 
   // OnCreated() will be called once.
   EXPECT_CALL(event_handler, OnCreated(NotNull()))
@@ skipping 68 matching lines @@
   controller->Record();
 
   controller->Close(base::MessageLoop::QuitWhenIdleClosure());
   base::RunLoop().Run();
 
   controller->Close(base::MessageLoop::QuitWhenIdleClosure());
   base::RunLoop().Run();
 }
 
 }  // namespace media