Ensures that audio tasks cannot run after AudioManager is deleted.

media/audio/audio_manager_unittest.cc

 // Copyright 2013 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_manager.h"
 
 #include <memory>
 #include <vector>
 
 #include "base/bind.h"
 #include "base/environment.h"
 #include "base/logging.h"
 #include "base/memory/ptr_util.h"
 #include "base/run_loop.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/synchronization/waitable_event.h"
 #include "base/test/test_message_loop.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "build/build_config.h"
 #include "media/audio/audio_device_description.h"
 #include "media/audio/audio_device_name.h"
 #include "media/audio/audio_output_proxy.h"
 #include "media/audio/audio_unittest_util.h"
 #include "media/audio/fake_audio_log_factory.h"
 #include "media/audio/fake_audio_manager.h"
+#include "media/audio/test_audio_thread.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 #if defined(USE_ALSA)
 #include "media/audio/alsa/audio_manager_alsa.h"
 #endif  // defined(USE_ALSA)
 
 #if defined(OS_WIN)
 #include "base/win/scoped_com_initializer.h"
 #include "media/audio/win/audio_manager_win.h"
 #endif
 
 #if defined(USE_PULSEAUDIO)
 #include "media/audio/pulse/audio_manager_pulse.h"
+#include "media/audio/pulse/pulse_util.h"
 #endif  // defined(USE_PULSEAUDIO)
 
 #if defined(USE_CRAS)
 #include "chromeos/audio/audio_devices_pref_handler_stub.h"
 #include "chromeos/audio/cras_audio_handler.h"
 #include "chromeos/dbus/dbus_thread_manager.h"
 #include "chromeos/dbus/fake_cras_audio_client.h"
 #include "media/audio/cras/audio_manager_cras.h"
 #endif  // defined(USE_CRAS)
 
 namespace media {
 
 namespace {
 
 template <typename T>
 struct TestAudioManagerFactory {
-  static ScopedAudioManagerPtr Create(AudioLogFactory* audio_log_factory) {
-    return ScopedAudioManagerPtr(new T(base::ThreadTaskRunnerHandle::Get(),
-                                       base::ThreadTaskRunnerHandle::Get(),
-                                       audio_log_factory));
+  static std::unique_ptr<AudioManager> Create(
+      AudioLogFactory* audio_log_factory) {
+    return base::MakeUnique<T>(base::MakeUnique<TestAudioThread>(),
+                               audio_log_factory);
   }
 };
 
 #if defined(USE_PULSEAUDIO)
 template <>
 struct TestAudioManagerFactory<AudioManagerPulse> {
-  static ScopedAudioManagerPtr Create(AudioLogFactory* audio_log_factory) {
-    std::unique_ptr<AudioManagerPulse, AudioManagerDeleter> manager(
-        new AudioManagerPulse(base::ThreadTaskRunnerHandle::Get(),
-                              base::ThreadTaskRunnerHandle::Get(),
-                              audio_log_factory));
-    if (!manager->Init())
-      manager.reset();
-    return std::move(manager);
+  static std::unique_ptr<AudioManager> Create(
+      AudioLogFactory* audio_log_factory) {
+    pa_threaded_mainloop* pa_mainloop = nullptr;
+    pa_context* pa_context = nullptr;
+    if (!pulse::InitPulse(&pa_mainloop, &pa_context))
+      return nullptr;
+    return base::MakeUnique<AudioManagerPulse>(
+        base::MakeUnique<TestAudioThread>(), audio_log_factory, pa_mainloop,
+        pa_context);
   }
 };
 #endif  // defined(USE_PULSEAUDIO)
 
 template <>
 struct TestAudioManagerFactory<std::nullptr_t> {
-  static ScopedAudioManagerPtr Create(AudioLogFactory* audio_log_factory) {
-    return AudioManager::CreateForTesting(base::ThreadTaskRunnerHandle::Get());
+  static std::unique_ptr<AudioManager> Create(
+      AudioLogFactory* audio_log_factory) {
+    return AudioManager::CreateForTesting(base::MakeUnique<TestAudioThread>());
   }
 };
 
 #if defined(USE_CRAS)
 using chromeos::AudioNode;
 using chromeos::AudioNodeList;
 
 const uint64_t kJabraSpeaker1Id = 30001;
 const uint64_t kJabraSpeaker1StableDeviceId = 80001;
 const uint64_t kJabraSpeaker2Id = 30002;
@@ skipping 134 matching lines @@
     audio_client_->SetAudioNodesForTesting(audio_nodes);
     audio_pref_handler_ = new chromeos::AudioDevicesPrefHandlerStub();
     chromeos::CrasAudioHandler::Initialize(audio_pref_handler_);
     cras_audio_handler_ = chromeos::CrasAudioHandler::Get();
     base::RunLoop().RunUntilIdle();
   }
 #endif  // defined(USE_CRAS)
 
  protected:
   AudioManagerTest() { CreateAudioManagerForTesting(); }
-  ~AudioManagerTest() override {}
+  ~AudioManagerTest() override { audio_manager_->Shutdown(); }
 
   // Helper method which verifies that the device list starts with a valid
   // default record followed by non-default device names.
   static void CheckDeviceDescriptions(
       const AudioDeviceDescriptions& device_descriptions) {
     DVLOG(2) << "Got " << device_descriptions.size() << " audio devices.";
     if (!device_descriptions.empty()) {
       AudioDeviceDescriptions::const_iterator it = device_descriptions.begin();
 
       // The first device in the list should always be the default device.
@@ skipping 76 matching lines @@
   }
   bool OutputDevicesAvailable() {
     return audio_manager_->HasAudioOutputDevices();
   }
 
   template <typename T = std::nullptr_t>
   void CreateAudioManagerForTesting() {
     // Only one AudioManager may exist at a time, so destroy the one we're
     // currently holding before creating a new one.
     // Flush the message loop to run any shutdown tasks posted by AudioManager.
-    audio_manager_.reset();
-    base::RunLoop().RunUntilIdle();
+    if (audio_manager_) {
+      audio_manager_->Shutdown();
+      audio_manager_.reset();
+    }
 
     audio_manager_ =
         TestAudioManagerFactory<T>::Create(&fake_audio_log_factory_);
     // A few AudioManager implementations post initialization tasks to
     // audio thread. Flush the thread to ensure that |audio_manager_| is
     // initialized and ready to use before returning from this function.
     // TODO(alokp): We should perhaps do this in AudioManager::Create().
     base::RunLoop().RunUntilIdle();
   }
 
   base::TestMessageLoop message_loop_;
   FakeAudioLogFactory fake_audio_log_factory_;
-  ScopedAudioManagerPtr audio_manager_;
+  std::unique_ptr<AudioManager> audio_manager_;
 
 #if defined(USE_CRAS)
   chromeos::CrasAudioHandler* cras_audio_handler_ = nullptr;  // Not owned.
   chromeos::FakeCrasAudioClient* audio_client_ = nullptr;     // Not owned.
   scoped_refptr<chromeos::AudioDevicesPrefHandlerStub> audio_pref_handler_;
 #endif  // defined(USE_CRAS)
 };
 
 #if defined(USE_CRAS)
 TEST_F(AudioManagerTest, EnumerateInputDevicesCras) {
@@ skipping 212 matching lines @@
  private:
   DISALLOW_COPY_AND_ASSIGN(MockAudioDebugRecordingManager);
 };
 
 class TestAudioManager : public FakeAudioManager {
   // For testing the default implementation of GetGroupId(Input|Output)
   // input$i is associated to output$i, if both exist.
   // Default input is input1.
   // Default output is output2.
  public:
-  TestAudioManager(
-      scoped_refptr<base::SingleThreadTaskRunner> task_runner,
-      scoped_refptr<base::SingleThreadTaskRunner> worker_task_runner,
-      AudioLogFactory* audio_log_factory)
-      : FakeAudioManager(task_runner, worker_task_runner, audio_log_factory) {}
+  TestAudioManager(std::unique_ptr<AudioThread> audio_thread,
+                   AudioLogFactory* audio_log_factory)
+      : FakeAudioManager(std::move(audio_thread), audio_log_factory) {}
 
   std::string GetDefaultOutputDeviceID() override { return "output4"; }
 
   std::string GetAssociatedOutputDeviceID(
       const std::string& input_id) override {
     if (input_id == "input1")
       return "output1";
     if (input_id == "input2")
       return "output2";
     if (input_id == "default")
@@ skipping 69 matching lines @@
 
   base::FilePath file_path(FILE_PATH_LITERAL("path"));
   EXPECT_CALL(*mock_debug_recording_manager, EnableDebugRecording(file_path));
   audio_manager_->EnableOutputDebugRecording(file_path);
 
   EXPECT_CALL(*mock_debug_recording_manager, DisableDebugRecording());
   audio_manager_->DisableOutputDebugRecording();
 }
 
 }  // namespace media