Audio output debug recording.

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 "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"
 #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));
   }
 };
 
 #if defined(USE_PULSEAUDIO)
@@ skipping 95 matching lines @@
                               true,
                               kWebcamMicStableDeviceId,
                               kWebcamMicStableDeviceId ^ 0xFF,
                               "Webcam Mic",
                               "USB",
                               "Logitech Webcam",
                               false,
                               0);
 #endif  // defined(USE_CRAS)
 
+// Dummy function that should never be called.
+std::unique_ptr<AudioFileWriter> CreateAudioFileWriterDummy(
+    const AudioParameters& params) {
+  NOTREACHED();
+  return nullptr;
+}
+
 }  // namespace
 
 // Test fixture which allows us to override the default enumeration API on
 // Windows.
 class AudioManagerTest : public ::testing::Test {
  public:
   void HandleDefaultDeviceIDsTest() {
     AudioParameters params(AudioParameters::AUDIO_PCM_LOW_LATENCY,
                            CHANNEL_LAYOUT_STEREO, 48000, 16, 2048);
 
@@ skipping 369 matching lines @@
       DVLOG(2) << description.unique_id << " matches with " << output_device_id;
       found_an_associated_device = true;
     }
   }
 
   EXPECT_TRUE(found_an_associated_device);
 #endif  // defined(OS_WIN) || defined(OS_MACOSX)
 }
 #endif  // defined(USE_CRAS)
 
+// Mock class to verify enable and disable calls.
+class MockAudioDebugRecordingManager : public AudioDebugRecordingManager {
+ public:
+  MockAudioDebugRecordingManager(
+      AudioFileWriter::CreateCallback create_audio_file_writer_callback,
+      scoped_refptr<base::SingleThreadTaskRunner> task_runner)
+      : AudioDebugRecordingManager(std::move(create_audio_file_writer_callback),
+                                   std::move(task_runner)) {}
+
+  ~MockAudioDebugRecordingManager() override {}
+
+  MOCK_METHOD1(EnableDebugRecording, void(const base::FilePath&));
+  MOCK_METHOD0(DisableDebugRecording, void());
+
+ 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)
@@ skipping 20 matching lines @@
     device_names->push_front(AudioDeviceName::CreateDefault());
   }
 
   void GetAudioOutputDeviceNames(AudioDeviceNames* device_names) override {
     device_names->emplace_back("Output 1", "output1");
     device_names->emplace_back("Output 2", "output2");
     device_names->emplace_back("Output 3", "output3");
     device_names->emplace_back("Output 4", "output4");
     device_names->push_front(AudioDeviceName::CreateDefault());
   }
+
+  std::unique_ptr<AudioDebugRecordingManager> CreateAudioDebugRecordingManager(
+      AudioFileWriter::CreateCallback create_audio_file_writer_callback,
+      scoped_refptr<base::SingleThreadTaskRunner> task_runner) override {
+    return base::MakeUnique<MockAudioDebugRecordingManager>(
+        std::move(create_audio_file_writer_callback), std::move(task_runner));
+  }
 };
 
 TEST_F(AudioManagerTest, GroupId) {
   CreateAudioManagerForTesting<TestAudioManager>();
   // Groups:
   // input1, output1, default input
   // input2, output2
   // input3,
   // output3
   // output4, default output
   AudioDeviceDescriptions inputs;
   audio_manager_->GetAudioInputDeviceDescriptions(&inputs);
   AudioDeviceDescriptions outputs;
   audio_manager_->GetAudioOutputDeviceDescriptions(&outputs);
   EXPECT_EQ(inputs[0].group_id, outputs[1].group_id);
   EXPECT_EQ(inputs[1].group_id, outputs[1].group_id);
   EXPECT_EQ(inputs[2].group_id, outputs[2].group_id);
   EXPECT_NE(inputs[3].group_id, outputs[3].group_id);
   EXPECT_EQ(outputs[4].group_id, outputs[0].group_id);
   EXPECT_NE(inputs[0].group_id, outputs[0].group_id);
   EXPECT_NE(inputs[1].group_id, outputs[2].group_id);
   EXPECT_NE(inputs[2].group_id, outputs[3].group_id);
   EXPECT_NE(inputs[1].group_id, outputs[3].group_id);
 }
 
+TEST_F(AudioManagerTest, AudioDebugRecording) {
+  CreateAudioManagerForTesting<TestAudioManager>();
+
+  AudioManagerBase* audio_manager_base =
+      static_cast<AudioManagerBase*>(audio_manager_.get());
+
+  // Should be OK to disable without initializing.
+  audio_manager_->DisableOutputDebugRecording();
+
+  audio_manager_->InitializeOutputDebugRecording(
+      base::BindRepeating(&CreateAudioFileWriterDummy));
+
+  MockAudioDebugRecordingManager* mock_debug_recording_manager =
+      static_cast<MockAudioDebugRecordingManager*>(
+          audio_manager_base->debug_recording_manager_.get());
+  ASSERT_TRUE(mock_debug_recording_manager);
+
+  EXPECT_CALL(*mock_debug_recording_manager, DisableDebugRecording());
+  audio_manager_->DisableOutputDebugRecording();
+
+  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