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/*
* Copyright 2022 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.server.audio;
import com.android.server.audio.SpatializerHelper.SADeviceState;
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.ArgumentMatchers.anyBoolean;
import static org.mockito.Mockito.doNothing;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.spy;
import static org.mockito.Mockito.when;
import android.media.AudioAttributes;
import android.media.AudioDeviceAttributes;
import android.media.AudioDeviceInfo;
import android.media.AudioFormat;
import android.media.AudioSystem;
import android.util.Log;
import androidx.test.filters.MediumTest;
import androidx.test.runner.AndroidJUnit4;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.mockito.Mock;
import org.mockito.Spy;
import java.util.ArrayList;
import java.util.List;
@MediumTest
@RunWith(AndroidJUnit4.class)
public class SpatializerHelperTest {
private static final String TAG = "SpatializerHelperTest";
// the actual class under test
private SpatializerHelper mSpatHelper;
@Mock private AudioService mMockAudioService;
@Spy private AudioSystemAdapter mSpyAudioSystem;
@Mock private AudioSystemAdapter mMockAudioSystem;
@Before
public void setUp() throws Exception {
mMockAudioService = mock(AudioService.class);
}
/**
* Initializes mSpatHelper, the SpatizerHelper instance under test, to use the mock or spy
* AudioSystemAdapter
* @param useSpyAudioSystem true to use the spy adapter, mSpyAudioSystem, or false to use
* the mock adapter, mMockAudioSystem.
*/
private void setUpSpatHelper(boolean useSpyAudioSystem) {
final AudioSystemAdapter asAdapter;
if (useSpyAudioSystem) {
mSpyAudioSystem = spy(new NoOpAudioSystemAdapter());
asAdapter = mSpyAudioSystem;
mMockAudioSystem = null;
} else {
mSpyAudioSystem = null;
mMockAudioSystem = mock(NoOpAudioSystemAdapter.class);
asAdapter = mMockAudioSystem;
}
mSpatHelper = new SpatializerHelper(mMockAudioService, asAdapter,
true /*binauralEnabledDefault*/,
true /*transauralEnabledDefault*/,
false /*headTrackingEnabledDefault*/);
}
/**
* Test that constructing an SADeviceState instance requires a non-null address for a
* wireless type, but can take null for a non-wireless type;
* @throws Exception
*/
@Test
public void testSADeviceStateNullAddressCtor() throws Exception {
setUpSpatHelper(true /*useSpyAudioSystem*/);
try {
SADeviceState devState = new SADeviceState(AudioDeviceInfo.TYPE_BUILTIN_SPEAKER, null);
devState = new SADeviceState(AudioDeviceInfo.TYPE_BLUETOOTH_A2DP, null);
Assert.fail();
} catch (NullPointerException e) { }
}
@Test
public void testSADeviceStateStringSerialization() throws Exception {
Log.i(TAG, "starting testSADeviceStateStringSerialization");
setUpSpatHelper(true /*useSpyAudioSystem*/);
final SADeviceState devState = new SADeviceState(
AudioDeviceInfo.TYPE_BUILTIN_SPEAKER, "bla");
devState.mHasHeadTracker = false;
devState.mHeadTrackerEnabled = false;
devState.mEnabled = true;
final String persistString = devState.toPersistableString();
final SADeviceState result = SADeviceState.fromPersistedString(persistString);
Log.i(TAG, "original:" + devState);
Log.i(TAG, "result :" + result);
Assert.assertEquals(devState, result);
}
@Test
public void testSADeviceSettings() throws Exception {
Log.i(TAG, "starting testSADeviceSettings");
setUpSpatHelper(true /*useSpyAudioSystem*/);
final AudioDeviceAttributes dev1 =
new AudioDeviceAttributes(AudioSystem.DEVICE_OUT_SPEAKER, "");
final AudioDeviceAttributes dev2 =
new AudioDeviceAttributes(AudioSystem.DEVICE_OUT_BLUETOOTH_A2DP, "C3:PO:beep");
final AudioDeviceAttributes dev3 =
new AudioDeviceAttributes(AudioSystem.DEVICE_OUT_BLUETOOTH_A2DP, "R2:D2:bloop");
doNothing().when(mMockAudioService).persistSpatialAudioDeviceSettings();
mSpatHelper.initForTest(true /*binaural*/, true /*transaural*/);
// test with single device
mSpatHelper.addCompatibleAudioDevice(dev1);
checkAddSettings();
// test with 2+ devices so separator character is used in list
mSpatHelper.addCompatibleAudioDevice(dev2);
Assert.assertTrue(mSpatHelper.isAvailableForDevice(dev2));
checkAddSettings();
Assert.assertTrue(mSpatHelper.isAvailableForDevice(dev2));
mSpatHelper.addCompatibleAudioDevice(dev3);
checkAddSettings();
// test adding a device twice in the list
mSpatHelper.addCompatibleAudioDevice(dev1);
checkAddSettings();
// test removing a device
mSpatHelper.removeCompatibleAudioDevice(dev2);
// spatializer could still be run for dev2 (is available) but spatial audio
// is disabled for dev2 by removeCompatibleAudioDevice
Assert.assertTrue(mSpatHelper.isAvailableForDevice(dev2));
List<AudioDeviceAttributes> compatDevices = mSpatHelper.getCompatibleAudioDevices();
Assert.assertFalse(compatDevices.stream().anyMatch(dev -> dev.equalTypeAddress(dev2)));
checkAddSettings();
}
/**
* Gets the string representing the current configuration of the devices, then clears it
* and restores the configuration. Verify the new string from the restored settings matches
* the original one.
*/
private void checkAddSettings() throws Exception {
String settings = mSpatHelper.getSADeviceSettings();
Log.i(TAG, "device settings: " + settings);
mSpatHelper.clearSADevices();
mSpatHelper.setSADeviceSettings(settings);
String settingsRestored = mSpatHelper.getSADeviceSettings();
Log.i(TAG, "device settingsRestored: " + settingsRestored);
Assert.assertEquals(settings, settingsRestored);
}
/**
* Test that null devices for routing do not break canBeSpatialized
* @throws Exception
*/
@Test
public void testNoRoutingCanBeSpatialized() throws Exception {
Log.i(TAG, "Starting testNoRoutingCanBeSpatialized");
setUpSpatHelper(false /*useSpyAudioSystem*/);
mSpatHelper.forceStateForTest(SpatializerHelper.STATE_ENABLED_AVAILABLE);
final ArrayList<AudioDeviceAttributes> emptyList = new ArrayList<>(0);
final ArrayList<AudioDeviceAttributes> listWithNull = new ArrayList<>(1);
listWithNull.add(null);
final AudioAttributes media = new AudioAttributes.Builder()
.setUsage(AudioAttributes.USAGE_MEDIA).build();
final AudioFormat spatialFormat = new AudioFormat.Builder()
.setEncoding(AudioFormat.ENCODING_PCM_16BIT)
.setChannelMask(AudioFormat.CHANNEL_OUT_5POINT1).build();
when(mMockAudioSystem.getDevicesForAttributes(any(AudioAttributes.class), anyBoolean()))
.thenReturn(emptyList);
Assert.assertFalse("can be spatialized on empty routing",
mSpatHelper.canBeSpatialized(media, spatialFormat));
when(mMockAudioSystem.getDevicesForAttributes(any(AudioAttributes.class), anyBoolean()))
.thenReturn(listWithNull);
Assert.assertFalse("can be spatialized on null routing",
mSpatHelper.canBeSpatialized(media, spatialFormat));
}
}
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