Store audio device's active state in preference

chromeos/audio/audio_devices_pref_handler_impl_unittest.cc

 // Copyright 2014 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 "chromeos/audio/audio_devices_pref_handler_impl.h"
 
 #include "base/memory/ref_counted.h"
 #include "base/prefs/testing_pref_service.h"
 #include "chromeos/audio/audio_device.h"
 #include "chromeos/audio/audio_devices_pref_handler.h"
 #include "chromeos/chromeos_pref_names.h"
 #include "chromeos/dbus/audio_node.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace chromeos {
 
 const uint64 kInternalMicId = 10003;
 const uint64 kHeadphoneId = 10002;
 const uint64 kHDMIOutputId = 10006;
 const uint64 kOtherTypeOutputId = 90001;
 const uint64 kOtherTypeInputId = 90002;
 
 const AudioDevice kInternalMic(AudioNode(true,
                                          kInternalMicId,
+                                         kInternalMicId,
                                          "Fake Mic",
                                          "INTERNAL_MIC",
                                          "Internal Mic",
                                          false,
                                          0));
 
 const AudioDevice kHeadphone(AudioNode(false,
                                        kHeadphoneId,
+                                       kHeadphoneId,
                                        "Fake Headphone",
                                        "HEADPHONE",
                                        "Headphone",
                                        false,
                                        0));
 
 const AudioDevice kHDMIOutput(AudioNode(false,
                                         kHDMIOutputId,
+                                        kHDMIOutputId,
                                         "HDMI output",
                                         "HDMI",
                                         "HDMI output",
                                         false,
                                         0));
 
 const AudioDevice kInputDeviceWithSpecialCharacters(
     AudioNode(true,
               kOtherTypeInputId,
+              kOtherTypeInputId,
               "Fake ~!@#$%^&*()_+`-=<>?,./{}|[]\\\\Mic",
               "SOME_OTHER_TYPE",
               "Other Type Input Device",
               true,
               0));
 
 const AudioDevice kOutputDeviceWithSpecialCharacters(
     AudioNode(false,
               kOtherTypeOutputId,
+              kOtherTypeOutputId,
               "Fake ~!@#$%^&*()_+`-=<>?,./{}|[]\\\\Headphone",
               "SOME_OTHER_TYPE",
               "Other Type Output Device",
               false,
               0));
 
 class AudioDevicesPrefHandlerTest : public testing::Test {
  public:
   AudioDevicesPrefHandlerTest() {}
   ~AudioDevicesPrefHandlerTest() override {}
@@ skipping 13 matching lines @@
  private:
   DISALLOW_COPY_AND_ASSIGN(AudioDevicesPrefHandlerTest);
 };
 
 TEST_F(AudioDevicesPrefHandlerTest, TestDefaultValues) {
   // TODO(rkc): Once the bug with default preferences is fixed, fix this test
   // also. http://crbug.com/442489
   EXPECT_EQ(75.0, audio_pref_handler_->GetInputGainValue(&kInternalMic));
   EXPECT_EQ(75.0, audio_pref_handler_->GetOutputVolumeValue(&kHeadphone));
   EXPECT_EQ(75.0, audio_pref_handler_->GetOutputVolumeValue(&kHDMIOutput));
+  EXPECT_EQ(AUDIO_STATE_NOT_AVAILABLE,
+            audio_pref_handler_->GetDeviceState(kInternalMic));
+  EXPECT_EQ(AUDIO_STATE_NOT_AVAILABLE,
+            audio_pref_handler_->GetDeviceState(kHeadphone));
+  EXPECT_EQ(AUDIO_STATE_NOT_AVAILABLE,
+            audio_pref_handler_->GetDeviceState(kHDMIOutput));
 }
 
 TEST_F(AudioDevicesPrefHandlerTest, PrefsRegistered) {
   // The standard audio prefs are registered.
   EXPECT_TRUE(pref_service_->FindPreference(prefs::kAudioDevicesVolumePercent));
   EXPECT_TRUE(pref_service_->FindPreference(prefs::kAudioDevicesMute));
   EXPECT_TRUE(pref_service_->FindPreference(prefs::kAudioOutputAllowed));
   EXPECT_TRUE(pref_service_->FindPreference(prefs::kAudioVolumePercent));
   EXPECT_TRUE(pref_service_->FindPreference(prefs::kAudioMute));
+  EXPECT_TRUE(pref_service_->FindPreference(prefs::kAudioDevicesState));
 }
 
 TEST_F(AudioDevicesPrefHandlerTest, TestBasicInputOutputDevices) {
   audio_pref_handler_->SetVolumeGainValue(kInternalMic, 13.37);
   EXPECT_EQ(13.37, audio_pref_handler_->GetInputGainValue(&kInternalMic));
   audio_pref_handler_->SetVolumeGainValue(kHeadphone, 47.28);
   EXPECT_EQ(47.28, audio_pref_handler_->GetOutputVolumeValue(&kHeadphone));
 }
 
 TEST_F(AudioDevicesPrefHandlerTest, TestSpecialCharactersInDeviceNames) {
   audio_pref_handler_->SetVolumeGainValue(kInputDeviceWithSpecialCharacters,
                                           73.31);
   audio_pref_handler_->SetVolumeGainValue(kOutputDeviceWithSpecialCharacters,
                                           85.92);
 
   EXPECT_EQ(73.31, audio_pref_handler_->GetInputGainValue(
       &kInputDeviceWithSpecialCharacters));
   EXPECT_EQ(85.92, audio_pref_handler_->GetOutputVolumeValue(
       &kOutputDeviceWithSpecialCharacters));
 }
 

[jennyz, 2015/12/17 22:50:21]

Would you please add a test case to test the write/read of the audio device
state pref?

[hychao, 2015/12/29 10:57:25]

Done.

 }  // namespace chromeos