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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "gtest/gtest.h"
#include "AudioFocusManager.h"
#include "MediaControlService.h"
#include "mozilla/Preferences.h"
using namespace mozilla::dom;
#define FIRST_CONTROLLER_ID 0
#define SECOND_CONTROLLER_ID 1
// This RAII class is used to set the audio focus management pref within a test
// and automatically revert the change when a test ends, in order not to
// interfere other tests unexpectedly.
class AudioFocusManagmentPrefSetterRAII {
public:
explicit AudioFocusManagmentPrefSetterRAII(bool aPrefValue) {
mOriginalValue = mozilla::Preferences::GetBool(mPrefName, false);
mozilla::Preferences::SetBool(mPrefName, aPrefValue);
}
~AudioFocusManagmentPrefSetterRAII() {
mozilla::Preferences::SetBool(mPrefName, mOriginalValue);
}
private:
const char* mPrefName = "media.audioFocus.management";
bool mOriginalValue;
};
TEST(AudioFocusManager, TestRequestAudioFocus)
{
AudioFocusManager manager;
ASSERT_TRUE(manager.GetAudioFocusNums() == 0);
RefPtr<MediaController> controller = new MediaController(FIRST_CONTROLLER_ID);
manager.RequestAudioFocus(controller);
ASSERT_TRUE(manager.GetAudioFocusNums() == 1);
manager.RevokeAudioFocus(controller);
ASSERT_TRUE(manager.GetAudioFocusNums() == 0);
}
TEST(AudioFocusManager, TestAudioFocusNumsWhenEnableAudioFocusManagement)
{
// When enabling audio focus management, we only allow one controller owing
// audio focus at a time when the audio competing occurs. As the mechanism of
// handling the audio competing involves multiple components, we can't test it
// simply by using the APIs from AudioFocusManager.
AudioFocusManagmentPrefSetterRAII prefSetter(true);
AudioFocusManager manager;
ASSERT_TRUE(manager.GetAudioFocusNums() == 0);
RefPtr<MediaController> controller1 =
new MediaController(FIRST_CONTROLLER_ID);
RefPtr<MediaController> controller2 =
new MediaController(SECOND_CONTROLLER_ID);
manager.RequestAudioFocus(controller1);
ASSERT_TRUE(manager.GetAudioFocusNums() == 1);
// When controller2 starts, it would win the audio focus from controller1. So
// only one audio focus would exist.
manager.RequestAudioFocus(controller2);
ASSERT_TRUE(manager.GetAudioFocusNums() == 1);
manager.RevokeAudioFocus(controller2);
ASSERT_TRUE(manager.GetAudioFocusNums() == 0);
}
TEST(AudioFocusManager, TestAudioFocusNumsWhenDisableAudioFocusManagement)
{
// When disabling audio focus management, we won't handle the audio competing,
// so we allow multiple audio focus existing at the same time.
AudioFocusManagmentPrefSetterRAII prefSetter(false);
AudioFocusManager manager;
ASSERT_TRUE(manager.GetAudioFocusNums() == 0);
RefPtr<MediaController> controller1 =
new MediaController(FIRST_CONTROLLER_ID);
RefPtr<MediaController> controller2 =
new MediaController(SECOND_CONTROLLER_ID);
manager.RequestAudioFocus(controller1);
ASSERT_TRUE(manager.GetAudioFocusNums() == 1);
manager.RequestAudioFocus(controller2);
ASSERT_TRUE(manager.GetAudioFocusNums() == 2);
manager.RevokeAudioFocus(controller1);
ASSERT_TRUE(manager.GetAudioFocusNums() == 1);
manager.RevokeAudioFocus(controller2);
ASSERT_TRUE(manager.GetAudioFocusNums() == 0);
}
TEST(AudioFocusManager, TestRequestAudioFocusRepeatedly)
{
AudioFocusManager manager;
ASSERT_TRUE(manager.GetAudioFocusNums() == 0);
RefPtr<MediaController> controller = new MediaController(FIRST_CONTROLLER_ID);
manager.RequestAudioFocus(controller);
ASSERT_TRUE(manager.GetAudioFocusNums() == 1);
manager.RequestAudioFocus(controller);
ASSERT_TRUE(manager.GetAudioFocusNums() == 1);
}
TEST(AudioFocusManager, TestRevokeAudioFocusRepeatedly)
{
AudioFocusManager manager;
ASSERT_TRUE(manager.GetAudioFocusNums() == 0);
RefPtr<MediaController> controller = new MediaController(FIRST_CONTROLLER_ID);
manager.RequestAudioFocus(controller);
ASSERT_TRUE(manager.GetAudioFocusNums() == 1);
manager.RevokeAudioFocus(controller);
ASSERT_TRUE(manager.GetAudioFocusNums() == 0);
manager.RevokeAudioFocus(controller);
ASSERT_TRUE(manager.GetAudioFocusNums() == 0);
}
TEST(AudioFocusManager, TestRevokeAudioFocusWithoutRequestAudioFocus)
{
AudioFocusManager manager;
ASSERT_TRUE(manager.GetAudioFocusNums() == 0);
RefPtr<MediaController> controller = new MediaController(FIRST_CONTROLLER_ID);
manager.RevokeAudioFocus(controller);
ASSERT_TRUE(manager.GetAudioFocusNums() == 0);
}
TEST(AudioFocusManager,
TestRevokeAudioFocusForControllerWithoutOwningAudioFocus)
{
AudioFocusManager manager;
ASSERT_TRUE(manager.GetAudioFocusNums() == 0);
RefPtr<MediaController> controller1 =
new MediaController(FIRST_CONTROLLER_ID);
RefPtr<MediaController> controller2 =
new MediaController(SECOND_CONTROLLER_ID);
manager.RequestAudioFocus(controller1);
ASSERT_TRUE(manager.GetAudioFocusNums() == 1);
manager.RevokeAudioFocus(controller2);
ASSERT_TRUE(manager.GetAudioFocusNums() == 1);
}
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