Merge "Add CarAudioManager API test" into sc-dev
diff --git a/tests/android_car_api_test/src/android/car/apitest/CarApiTestBase.java b/tests/android_car_api_test/src/android/car/apitest/CarApiTestBase.java
index 4685b62..7d34052 100644
--- a/tests/android_car_api_test/src/android/car/apitest/CarApiTestBase.java
+++ b/tests/android_car_api_test/src/android/car/apitest/CarApiTestBase.java
@@ -55,7 +55,7 @@
 import java.util.concurrent.Semaphore;
 import java.util.concurrent.TimeUnit;
 
-abstract class CarApiTestBase {
+public abstract class CarApiTestBase {
 
     private static final String TAG = CarApiTestBase.class.getSimpleName();
 
diff --git a/tests/android_car_api_test/src/android/car/apitest/media/CarAudioManagerTest.java b/tests/android_car_api_test/src/android/car/apitest/media/CarAudioManagerTest.java
new file mode 100644
index 0000000..9fb2781
--- /dev/null
+++ b/tests/android_car_api_test/src/android/car/apitest/media/CarAudioManagerTest.java
@@ -0,0 +1,147 @@
+/*
+ * Copyright (C) 2021 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 android.car.apitest.media;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import static org.junit.Assume.assumeTrue;
+
+import android.car.Car;
+import android.car.apitest.CarApiTestBase;
+import android.car.media.CarAudioManager;
+import android.media.AudioAttributes;
+import android.media.AudioDeviceInfo;
+import android.os.Process;
+
+import androidx.test.ext.junit.runners.AndroidJUnit4;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import java.util.List;
+
+@RunWith(AndroidJUnit4.class)
+public class CarAudioManagerTest extends CarApiTestBase {
+
+    private CarAudioManager mCarAudioManager;
+
+    @Before
+    public void setUp() throws Exception {
+        mCarAudioManager = (CarAudioManager) getCar().getCarManager(Car.AUDIO_SERVICE);
+        assertThat(mCarAudioManager).isNotNull();
+    }
+
+    @Test
+    public void test_getAudioZoneIds() throws Exception {
+        assumeDynamicRoutingIsEnabled();
+
+        List<Integer> zoneIds = mCarAudioManager.getAudioZoneIds();
+        assertThat(zoneIds).isNotEmpty();
+        assertThat(zoneIds).contains(CarAudioManager.PRIMARY_AUDIO_ZONE);
+    }
+
+    @Test
+    public void test_isAudioFeatureEnabled() throws Exception {
+        // nothing to assert. Just call the API.
+        mCarAudioManager.isAudioFeatureEnabled(CarAudioManager.AUDIO_FEATURE_DYNAMIC_ROUTING);
+        mCarAudioManager.isAudioFeatureEnabled(CarAudioManager.AUDIO_FEATURE_VOLUME_GROUP_MUTING);
+    }
+
+    @Test
+    public void test_getVolumeGroupCount() throws Exception {
+        int primaryZoneCount = mCarAudioManager.getVolumeGroupCount();
+        assertThat(
+                mCarAudioManager.getVolumeGroupCount(CarAudioManager.PRIMARY_AUDIO_ZONE)).isEqualTo(
+                primaryZoneCount);
+    }
+
+    @Test
+    public void test_getGroupVolume() throws Exception {
+        int groudId = 0;
+        int volume = mCarAudioManager.getGroupVolume(groudId);
+        assertThat(mCarAudioManager.getGroupVolume(CarAudioManager.PRIMARY_AUDIO_ZONE,
+                groudId)).isEqualTo(volume);
+        int maxVolume = mCarAudioManager.getGroupMaxVolume(groudId);
+        assertThat(mCarAudioManager.getGroupMaxVolume(CarAudioManager.PRIMARY_AUDIO_ZONE,
+                groudId)).isEqualTo(maxVolume);
+        int minVolume = mCarAudioManager.getGroupMinVolume(groudId);
+        assertThat(mCarAudioManager.getGroupMinVolume(CarAudioManager.PRIMARY_AUDIO_ZONE,
+                groudId)).isEqualTo(minVolume);
+        assertThat(volume).isAtLeast(minVolume);
+        assertThat(volume).isAtMost(maxVolume);
+    }
+
+    @Test
+    public void test_setGroupVolume() throws Exception {
+        int groudId = 0;
+        int volume = mCarAudioManager.getGroupVolume(groudId);
+        mCarAudioManager.setGroupVolume(groudId, volume, 0);
+        mCarAudioManager.setGroupVolume(CarAudioManager.PRIMARY_AUDIO_ZONE, groudId, volume, 0);
+        assertThat(mCarAudioManager.getGroupVolume(groudId)).isEqualTo(volume);
+    }
+
+    @Test
+    public void test_getInputDevicesForZoneId() throws Exception {
+        assumeDynamicRoutingIsEnabled();
+
+        List<AudioDeviceInfo> info = mCarAudioManager.getInputDevicesForZoneId(
+                CarAudioManager.PRIMARY_AUDIO_ZONE);
+        assertThat(info).isNotEmpty();
+    }
+
+    @Test
+    public void test_getOutputDeviceForUsage() throws Exception {
+        assumeDynamicRoutingIsEnabled();
+
+        AudioDeviceInfo device = mCarAudioManager.getOutputDeviceForUsage(
+                CarAudioManager.PRIMARY_AUDIO_ZONE, AudioAttributes.USAGE_MEDIA);
+        assertThat(device).isNotNull();
+    }
+
+    @Test
+    public void test_getVolumeGroupIdForUsage() throws Exception {
+        int groupId = mCarAudioManager.getVolumeGroupIdForUsage(AudioAttributes.USAGE_MEDIA);
+        assertThat(mCarAudioManager.getVolumeGroupIdForUsage(CarAudioManager.PRIMARY_AUDIO_ZONE,
+                AudioAttributes.USAGE_MEDIA)).isEqualTo(groupId);
+        int primaryZoneCount = mCarAudioManager.getVolumeGroupCount();
+        assertThat(groupId).isLessThan(primaryZoneCount);
+    }
+
+    @Test
+    public void test_getZoneIdForUid() throws Exception {
+        assumeDynamicRoutingIsEnabled();
+
+        assertThat(mCarAudioManager.getZoneIdForUid(Process.myUid())).isEqualTo(
+                CarAudioManager.PRIMARY_AUDIO_ZONE);
+    }
+
+    @Test
+    public void test_isPlaybackOnVolumeGroupActive() throws Exception {
+        assumeDynamicRoutingIsEnabled();
+
+        // TODO(b/191660867): Better to change this to play something and asert true.
+        assertThat(
+                mCarAudioManager.isPlaybackOnVolumeGroupActive(CarAudioManager.PRIMARY_AUDIO_ZONE,
+                        0)).isFalse();
+    }
+
+    private void assumeDynamicRoutingIsEnabled() {
+        assumeTrue(mCarAudioManager.isAudioFeatureEnabled(
+                CarAudioManager.AUDIO_FEATURE_DYNAMIC_ROUTING));
+    }
+}