Merge "Add AvrcpControllerServiceTest" (bb57a013) · Commits · e / os / android_packages_modules_Bluetooth

android/app/src/com/android/bluetooth/avrcpcontroller/AvrcpControllerService.java

+46 −26

Original line number	Diff line number	Diff line
		@@ -35,6 +35,7 @@ import com.android.bluetooth.Utils;
		import com.android.bluetooth.a2dpsink.A2dpSinkService;
		import com.android.bluetooth.btservice.AdapterService;
		import com.android.bluetooth.btservice.ProfileService;
		import com.android.internal.annotations.VisibleForTesting;
		import com.android.modules.utils.SynchronousResultReceiver;

		import java.util.ArrayList;
		@@ -67,7 +68,8 @@ public class AvrcpControllerService extends ProfileService {
		private static final byte JNI_PLAY_STATUS_PLAYING = 0x01;
		private static final byte JNI_PLAY_STATUS_PAUSED = 0x02;
		private static final byte JNI_PLAY_STATUS_FWD_SEEK = 0x03;
		private static final byte JNI_PLAY_STATUS_REV_SEEK = 0x04;
		@VisibleForTesting
		static final byte JNI_PLAY_STATUS_REV_SEEK = 0x04;
		private static final byte JNI_PLAY_STATUS_ERROR = -1;

		/* Folder/Media Item scopes.
		@@ -173,6 +175,7 @@ public class AvrcpControllerService extends ProfileService {
		for (AvrcpControllerStateMachine stateMachine : mDeviceStateMap.values()) {
		stateMachine.quitNow();
		}
		mDeviceStateMap.clear();

		sService = null;
		sBrowseTree = null;
		@@ -201,7 +204,8 @@ public class AvrcpControllerService extends ProfileService {
		/**
		* Set the current active device, notify devices of activity status
		*/
		private boolean setActiveDevice(BluetoothDevice device) {
		@VisibleForTesting
		boolean setActiveDevice(BluetoothDevice device) {
		A2dpSinkService a2dpSinkService = A2dpSinkService.getA2dpSinkService();
		if (a2dpSinkService == null) {
		return false;
		@@ -277,7 +281,8 @@ public class AvrcpControllerService extends ProfileService {
		}
		}

		private void refreshContents(BrowseTree.BrowseNode node) {
		@VisibleForTesting
		void refreshContents(BrowseTree.BrowseNode node) {
		BluetoothDevice device = node.getDevice();
		if (device == null) {
		return;
		@@ -467,14 +472,16 @@ public class AvrcpControllerService extends ProfileService {

		/* JNI API*/
		// Called by JNI when a passthrough key was received.
		private void handlePassthroughRsp(int id, int keyState, byte[] address) {
		@VisibleForTesting
		void handlePassthroughRsp(int id, int keyState, byte[] address) {
		if (DBG) {
		Log.d(TAG, "passthrough response received as: key: " + id
		+ " state: " + keyState + "address:" + Arrays.toString(address));
		}
		}

		private void handleGroupNavigationRsp(int id, int keyState) {
		@VisibleForTesting
		void handleGroupNavigationRsp(int id, int keyState) {
		if (DBG) {
		Log.d(TAG, "group navigation response received as: key: " + id + " state: "
		+ keyState);
		@@ -482,17 +489,14 @@ public class AvrcpControllerService extends ProfileService {
		}

		// Called by JNI when a device has connected or disconnected.
		private synchronized void onConnectionStateChanged(boolean remoteControlConnected,
		@VisibleForTesting
		synchronized void onConnectionStateChanged(boolean remoteControlConnected,
		boolean browsingConnected, byte[] address) {
		BluetoothDevice device = BluetoothAdapter.getDefaultAdapter().getRemoteDevice(address);
		if (DBG) {
		Log.d(TAG, "onConnectionStateChanged " + remoteControlConnected + " "
		+ browsingConnected + device);
		}
		if (device == null) {
		Log.e(TAG, "onConnectionStateChanged Device is null");
		return;
		}

		StackEvent event =
		StackEvent.connectionStateChanged(remoteControlConnected, browsingConnected);
		@@ -514,12 +518,14 @@ public class AvrcpControllerService extends ProfileService {
		}

		// Called by JNI to notify Avrcp of features supported by the Remote device.
		private void getRcFeatures(byte[] address, int features) {
		@VisibleForTesting
		void getRcFeatures(byte[] address, int features) {
		/* Do Nothing. */
		}

		// Called by JNI to notify Avrcp of a remote device's Cover Art PSM
		private void getRcPsm(byte[] address, int psm) {
		@VisibleForTesting
		void getRcPsm(byte[] address, int psm) {
		BluetoothDevice device = BluetoothAdapter.getDefaultAdapter().getRemoteDevice(address);
		if (DBG) Log.d(TAG, "getRcPsm(device=" + device + ", psm=" + psm + ")");
		AvrcpControllerStateMachine stateMachine = getOrCreateStateMachine(device);
		@@ -530,12 +536,14 @@ public class AvrcpControllerService extends ProfileService {
		}

		// Called by JNI
		private void setPlayerAppSettingRsp(byte[] address, byte accepted) {
		@VisibleForTesting
		void setPlayerAppSettingRsp(byte[] address, byte accepted) {
		/* Do Nothing. */
		}

		// Called by JNI when remote wants to receive absolute volume notifications.
		private synchronized void handleRegisterNotificationAbsVol(byte[] address, byte label) {
		@VisibleForTesting
		synchronized void handleRegisterNotificationAbsVol(byte[] address, byte label) {
		if (DBG) {
		Log.d(TAG, "handleRegisterNotificationAbsVol");
		}
		@@ -548,7 +556,8 @@ public class AvrcpControllerService extends ProfileService {
		}

		// Called by JNI when remote wants to set absolute volume.
		private synchronized void handleSetAbsVolume(byte[] address, byte absVol, byte label) {
		@VisibleForTesting
		synchronized void handleSetAbsVolume(byte[] address, byte absVol, byte label) {
		if (DBG) {
		Log.d(TAG, "handleSetAbsVolume ");
		}
		@@ -588,7 +597,8 @@ public class AvrcpControllerService extends ProfileService {
		}

		// Called by JNI when a track changes and local AvrcpController is registered for updates.
		private synchronized void onTrackChanged(byte[] address, byte numAttributes, int[] attributes,
		@VisibleForTesting
		synchronized void onTrackChanged(byte[] address, byte numAttributes, int[] attributes,
		String[] attribVals) {
		if (DBG) {
		Log.d(TAG, "onTrackChanged");
		@@ -615,7 +625,8 @@ public class AvrcpControllerService extends ProfileService {
		}

		// Called by JNI periodically based upon timer to update play position
		private synchronized void onPlayPositionChanged(byte[] address, int songLen,
		@VisibleForTesting
		synchronized void onPlayPositionChanged(byte[] address, int songLen,
		int currSongPosition) {
		if (DBG) {
		Log.d(TAG, "onPlayPositionChanged pos " + currSongPosition);
		@@ -630,7 +641,8 @@ public class AvrcpControllerService extends ProfileService {
		}

		// Called by JNI on changes of play status
		private synchronized void onPlayStatusChanged(byte[] address, byte playStatus) {
		@VisibleForTesting
		synchronized void onPlayStatusChanged(byte[] address, byte playStatus) {
		if (DBG) {
		Log.d(TAG, "onPlayStatusChanged " + playStatus);
		}
		@@ -644,7 +656,8 @@ public class AvrcpControllerService extends ProfileService {
		}

		// Called by JNI to report remote Player's capabilities
		private synchronized void handlePlayerAppSetting(byte[] address, byte[] playerAttribRsp,
		@VisibleForTesting
		synchronized void handlePlayerAppSetting(byte[] address, byte[] playerAttribRsp,
		int rspLen) {
		if (DBG) {
		Log.d(TAG, "handlePlayerAppSetting rspLen = " + rspLen);
		@@ -660,7 +673,8 @@ public class AvrcpControllerService extends ProfileService {
		}
		}

		private synchronized void onPlayerAppSettingChanged(byte[] address, byte[] playerAttribRsp,
		@VisibleForTesting
		synchronized void onPlayerAppSettingChanged(byte[] address, byte[] playerAttribRsp,
		int rspLen) {
		if (DBG) {
		Log.d(TAG, "onPlayerAppSettingChanged ");
		@@ -677,7 +691,8 @@ public class AvrcpControllerService extends ProfileService {
		}
		}

		private void onAvailablePlayerChanged(byte[] address) {
		@VisibleForTesting
		void onAvailablePlayerChanged(byte[] address) {
		if (DBG) {
		Log.d(TAG," onAvailablePlayerChanged");
		}
		@@ -795,7 +810,8 @@ public class AvrcpControllerService extends ProfileService {
		return apb.build();
		}

		private void handleChangeFolderRsp(byte[] address, int count) {
		@VisibleForTesting
		void handleChangeFolderRsp(byte[] address, int count) {
		if (DBG) {
		Log.d(TAG, "handleChangeFolderRsp count: " + count);
		}
		@@ -807,7 +823,8 @@ public class AvrcpControllerService extends ProfileService {
		}
		}

		private void handleSetBrowsedPlayerRsp(byte[] address, int items, int depth) {
		@VisibleForTesting
		void handleSetBrowsedPlayerRsp(byte[] address, int items, int depth) {
		if (DBG) {
		Log.d(TAG, "handleSetBrowsedPlayerRsp depth: " + depth);
		}
		@@ -820,7 +837,8 @@ public class AvrcpControllerService extends ProfileService {
		}
		}

		private void handleSetAddressedPlayerRsp(byte[] address, int status) {
		@VisibleForTesting
		void handleSetAddressedPlayerRsp(byte[] address, int status) {
		if (DBG) {
		Log.d(TAG, "handleSetAddressedPlayerRsp status: " + status);
		}
		@@ -833,7 +851,8 @@ public class AvrcpControllerService extends ProfileService {
		}
		}

		private void handleAddressedPlayerChanged(byte[] address, int id) {
		@VisibleForTesting
		void handleAddressedPlayerChanged(byte[] address, int id) {
		if (DBG) {
		Log.d(TAG, "handleAddressedPlayerChanged id: " + id);
		}
		@@ -846,7 +865,8 @@ public class AvrcpControllerService extends ProfileService {
		}
		}

		private void handleNowPlayingContentChanged(byte[] address) {
		@VisibleForTesting
		void handleNowPlayingContentChanged(byte[] address) {
		if (DBG) {
		Log.d(TAG, "handleNowPlayingContentChanged");
		}

android/app/tests/unit/src/com/android/bluetooth/avrcpcontroller/AvrcpControllerServiceTest.java

+357 −11

Original line number	Diff line number	Diff line
		@@ -15,45 +15,59 @@
		*/
		package com.android.bluetooth.avrcpcontroller;

		import static com.google.common.truth.Truth.assertThat;

		import static org.mockito.Mockito.any;
		import static org.mockito.Mockito.anyString;
		import static org.mockito.Mockito.doReturn;
		import static org.mockito.Mockito.eq;
		import static org.mockito.Mockito.mock;
		import static org.mockito.Mockito.verify;
		import static org.mockito.Mockito.when;

		import android.bluetooth.BluetoothAdapter;
		import android.content.Context;
		import android.bluetooth.BluetoothDevice;
		import android.bluetooth.BluetoothProfile;
		import android.support.v4.media.session.PlaybackStateCompat;

		import androidx.test.InstrumentationRegistry;
		import androidx.test.filters.MediumTest;
		import androidx.test.rule.ServiceTestRule;
		import androidx.test.runner.AndroidJUnit4;

		import com.android.bluetooth.R;
		import com.android.bluetooth.TestUtils;
		import com.android.bluetooth.btservice.AdapterService;

		import org.junit.After;
		import org.junit.Assert;
		import org.junit.Assume;
		import org.junit.Before;
		import org.junit.Rule;
		import org.junit.Test;
		import org.junit.runner.RunWith;
		import org.mockito.ArgumentCaptor;
		import org.mockito.Mock;
		import org.mockito.MockitoAnnotations;

		import java.util.ArrayList;
		import java.util.Arrays;

		@MediumTest
		@RunWith(AndroidJUnit4.class)
		public class AvrcpControllerServiceTest {
		private static final String REMOTE_DEVICE_ADDRESS = "00:00:00:00:00:00";
		private static final byte[] REMOTE_DEVICE_ADDRESS_AS_ARRAY = new byte[] {0, 0, 0, 0, 0, 0};

		private AvrcpControllerService mService = null;
		private BluetoothAdapter mAdapter = null;
		private Context mTargetContext;

		@Rule public final ServiceTestRule mServiceRule = new ServiceTestRule();

		@Mock private AdapterService mAdapterService;
		@Mock private AvrcpControllerStateMachine mStateMachine;

		private BluetoothDevice mRemoteDevice;

		@Before
		public void setUp() throws Exception {
		mTargetContext = InstrumentationRegistry.getTargetContext();
		Assume.assumeTrue("Ignore test when AvrcpControllerService is not enabled",
		AvrcpControllerService.isEnabled());
		MockitoAnnotations.initMocks(this);
		@@ -61,10 +75,12 @@ public class AvrcpControllerServiceTest {
		doReturn(true, false).when(mAdapterService).isStartedProfile(anyString());
		TestUtils.startService(mServiceRule, AvrcpControllerService.class);
		mService = AvrcpControllerService.getAvrcpControllerService();
		Assert.assertNotNull(mService);
		assertThat(mService).isNotNull();
		// Try getting the Bluetooth adapter
		mAdapter = BluetoothAdapter.getDefaultAdapter();
		Assert.assertNotNull(mAdapter);
		assertThat(mAdapter).isNotNull();
		mRemoteDevice = mAdapter.getRemoteDevice(REMOTE_DEVICE_ADDRESS);
		mService.mDeviceStateMap.put(mRemoteDevice, mStateMachine);
		}

		@After
		@@ -74,12 +90,342 @@ public class AvrcpControllerServiceTest {
		}
		TestUtils.stopService(mServiceRule, AvrcpControllerService.class);
		mService = AvrcpControllerService.getAvrcpControllerService();
		Assert.assertNull(mService);
		assertThat(mService).isNull();
		TestUtils.clearAdapterService(mAdapterService);
		}

		@Test
		public void testInitialize() {
		Assert.assertNotNull(AvrcpControllerService.getAvrcpControllerService());
		public void initialize() {
		assertThat(AvrcpControllerService.getAvrcpControllerService()).isNotNull();
		}

		@Test
		public void disconnect_whenDisconnected_returnsFalse() {
		when(mStateMachine.getState()).thenReturn(BluetoothProfile.STATE_DISCONNECTED);

		assertThat(mService.disconnect(mRemoteDevice)).isFalse();
		}

		@Test
		public void disconnect_whenDisconnected_returnsTrue() {
		when(mStateMachine.getState()).thenReturn(BluetoothProfile.STATE_CONNECTED);

		assertThat(mService.disconnect(mRemoteDevice)).isTrue();
		verify(mStateMachine).disconnect();
		}

		@Test
		public void removeStateMachine() {
		when(mStateMachine.getDevice()).thenReturn(mRemoteDevice);

		mService.removeStateMachine(mStateMachine);

		assertThat(mService.mDeviceStateMap).doesNotContainKey(mRemoteDevice);
		}

		@Test
		public void getConnectedDevices() {
		when(mAdapterService.getBondedDevices()).thenReturn(
		new BluetoothDevice[]{mRemoteDevice});
		when(mStateMachine.getState()).thenReturn(BluetoothProfile.STATE_CONNECTED);

		assertThat(mService.getConnectedDevices()).contains(mRemoteDevice);
		}

		@Test
		public void setActiveDevice_whenA2dpSinkServiceIsNotInitailized_returnsFalse() {
		assertThat(mService.setActiveDevice(mRemoteDevice)).isFalse();

		assertThat(mService.getActiveDevice()).isNull();
		}

		@Test
		public void getCurrentMetadataIfNoCoverArt_doesNotCrash() {
		mService.getCurrentMetadataIfNoCoverArt(mRemoteDevice);
		}

		@Test
		public void refreshContents() {
		BrowseTree.BrowseNode node = mock(BrowseTree.BrowseNode.class);
		when(node.getDevice()).thenReturn(mRemoteDevice);

		mService.refreshContents(node);

		verify(mStateMachine).requestContents(node);
		}

		@Test
		public void playItem() {
		String parentMediaId = "test_parent_media_id";
		BrowseTree.BrowseNode node = mock(BrowseTree.BrowseNode.class);
		when(mStateMachine.findNode(parentMediaId)).thenReturn(node);

		mService.playItem(parentMediaId);

		verify(mStateMachine).playItem(node);
		}

		@Test
		public void getContents() {
		String parentMediaId = "test_parent_media_id";
		BrowseTree.BrowseNode node = mock(BrowseTree.BrowseNode.class);
		when(mStateMachine.findNode(parentMediaId)).thenReturn(node);

		mService.getContents(parentMediaId);

		verify(node).getContents();
		}

		@Test
		public void createFromNativeMediaItem() {
		long uid = 1;
		int type = 2;
		int[] attrIds = new int[] { 0x01 }; // MEDIA_ATTRIBUTE_TITLE}
		String[] attrVals = new String[] {"test_title"};

		AvrcpItem item = mService.createFromNativeMediaItem(
		REMOTE_DEVICE_ADDRESS_AS_ARRAY, uid, type, "unused_name", attrIds, attrVals);

		assertThat(item.getDevice().getAddress()).isEqualTo(REMOTE_DEVICE_ADDRESS);
		assertThat(item.getItemType()).isEqualTo(AvrcpItem.TYPE_MEDIA);
		assertThat(item.getType()).isEqualTo(type);
		assertThat(item.getUid()).isEqualTo(uid);
		assertThat(item.getUuid()).isNotNull(); // Random uuid
		assertThat(item.getTitle()).isEqualTo(attrVals[0]);
		assertThat(item.isPlayable()).isTrue();
		}

		@Test
		public void createFromNativeFolderItem() {
		long uid = 1;
		int type = 2;
		String folderName = "test_folder_name";
		int playable = 0x01; // Playable folder

		AvrcpItem item = mService.createFromNativeFolderItem(
		REMOTE_DEVICE_ADDRESS_AS_ARRAY, uid, type, folderName, playable);

		assertThat(item.getDevice().getAddress()).isEqualTo(REMOTE_DEVICE_ADDRESS);
		assertThat(item.getItemType()).isEqualTo(AvrcpItem.TYPE_FOLDER);
		assertThat(item.getType()).isEqualTo(type);
		assertThat(item.getUid()).isEqualTo(uid);
		assertThat(item.getUuid()).isNotNull(); // Random uuid
		assertThat(item.getDisplayableName()).isEqualTo(folderName);
		assertThat(item.isPlayable()).isTrue();
		}

		@Test
		public void createFromNativePlayerItem() {
		int playerId = 1;
		String name = "test_name";
		byte[] transportFlags = new byte[] {1, 0, 0, 0, 0, 0, 0, 0};
		int playStatus = AvrcpControllerService.JNI_PLAY_STATUS_REV_SEEK;
		int playerType = AvrcpPlayer.TYPE_AUDIO; // No getter exists

		AvrcpPlayer player = mService.createFromNativePlayerItem(
		REMOTE_DEVICE_ADDRESS_AS_ARRAY, playerId, name, transportFlags,
		playStatus, playerType);

		assertThat(player.getDevice().getAddress()).isEqualTo(REMOTE_DEVICE_ADDRESS);
		assertThat(player.getId()).isEqualTo(playerId);
		assertThat(player.supportsFeature(0)).isTrue();
		assertThat(player.getName()).isEqualTo(name);
		assertThat(player.getPlayStatus()).isEqualTo(PlaybackStateCompat.STATE_REWINDING);
		}

		@Test
		public void handleChangeFolderRsp() {
		int count = 1;

		mService.handleChangeFolderRsp(REMOTE_DEVICE_ADDRESS_AS_ARRAY, count);

		verify(mStateMachine).sendMessage(
		AvrcpControllerStateMachine.MESSAGE_PROCESS_FOLDER_PATH, count);
		}

		@Test
		public void handleSetBrowsedPlayerRsp() {
		int items = 3;
		int depth = 5;

		mService.handleSetBrowsedPlayerRsp(REMOTE_DEVICE_ADDRESS_AS_ARRAY, items, depth);

		verify(mStateMachine).sendMessage(
		AvrcpControllerStateMachine.MESSAGE_PROCESS_SET_BROWSED_PLAYER, items, depth);
		}

		@Test
		public void handleSetAddressedPlayerRsp() {
		int status = 1;

		mService.handleSetAddressedPlayerRsp(REMOTE_DEVICE_ADDRESS_AS_ARRAY, status);

		verify(mStateMachine).sendMessage(
		AvrcpControllerStateMachine.MESSAGE_PROCESS_SET_ADDRESSED_PLAYER);
		}

		@Test
		public void handleAddressedPlayerChanged() {
		int id = 1;

		mService.handleAddressedPlayerChanged(REMOTE_DEVICE_ADDRESS_AS_ARRAY, id);

		verify(mStateMachine).sendMessage(
		AvrcpControllerStateMachine.MESSAGE_PROCESS_ADDRESSED_PLAYER_CHANGED, id);
		}

		@Test
		public void handleNowPlayingContentChanged() {
		mService.handleNowPlayingContentChanged(REMOTE_DEVICE_ADDRESS_AS_ARRAY);

		verify(mStateMachine).nowPlayingContentChanged();
		}

		@Test
		public void JniApisWithNoBehaviors_doNotCrash() {
		mService.handlePassthroughRsp(1, 2, new byte[0]);
		mService.handleGroupNavigationRsp(1, 2);
		mService.getRcFeatures(new byte[0], 1);
		mService.setPlayerAppSettingRsp(new byte[0], (byte) 0);
		}

		@Test
		public void onConnectionStateChanged_connectCase() {
		boolean remoteControlConnected = true;
		boolean browsingConnected = true; // Calls connect when any of them is true.

		mService.onConnectionStateChanged(remoteControlConnected, browsingConnected,
		REMOTE_DEVICE_ADDRESS_AS_ARRAY);

		ArgumentCaptor<StackEvent> captor = ArgumentCaptor.forClass(StackEvent.class);
		verify(mStateMachine).connect(captor.capture());
		StackEvent event = captor.getValue();
		assertThat(event.mType).isEqualTo(StackEvent.EVENT_TYPE_CONNECTION_STATE_CHANGED);
		assertThat(event.mRemoteControlConnected).isEqualTo(remoteControlConnected);
		assertThat(event.mBrowsingConnected).isEqualTo(browsingConnected);
		}

		@Test
		public void onConnectionStateChanged_disconnectCase() {
		boolean remoteControlConnected = false;
		boolean browsingConnected = false; // Calls disconnect when both of them are false.

		mService.onConnectionStateChanged(
		remoteControlConnected, browsingConnected, REMOTE_DEVICE_ADDRESS_AS_ARRAY);

		verify(mStateMachine).disconnect();
		}

		@Test
		public void getRcPsm() {
		int psm = 1;

		mService.getRcPsm(REMOTE_DEVICE_ADDRESS_AS_ARRAY, psm);

		verify(mStateMachine).sendMessage(
		AvrcpControllerStateMachine.MESSAGE_PROCESS_RECEIVED_COVER_ART_PSM, psm);
		}

		@Test
		public void handleRegisterNotificationAbsVol() {
		byte label = 1;

		mService.handleRegisterNotificationAbsVol(REMOTE_DEVICE_ADDRESS_AS_ARRAY, label);

		verify(mStateMachine).sendMessage(
		AvrcpControllerStateMachine.MESSAGE_PROCESS_REGISTER_ABS_VOL_NOTIFICATION);
		}

		@Test
		public void handleSetAbsVolume() {
		byte absVol = 15;
		byte label = 1;

		mService.handleSetAbsVolume(REMOTE_DEVICE_ADDRESS_AS_ARRAY, absVol, label);

		verify(mStateMachine).sendMessage(
		AvrcpControllerStateMachine.MESSAGE_PROCESS_SET_ABS_VOL_CMD, absVol);
		}

		@Test
		public void onTrackChanged() {
		byte numAttrs = 0;
		int[] attrs = new int[0];
		String[] attrVals = new String[0];

		mService.onTrackChanged(REMOTE_DEVICE_ADDRESS_AS_ARRAY, numAttrs, attrs, attrVals);

		ArgumentCaptor<AvrcpItem> captor = ArgumentCaptor.forClass(AvrcpItem.class);
		verify(mStateMachine).sendMessage(
		eq(AvrcpControllerStateMachine.MESSAGE_PROCESS_TRACK_CHANGED), captor.capture());
		AvrcpItem item = captor.getValue();
		assertThat(item.getDevice().getAddress()).isEqualTo(REMOTE_DEVICE_ADDRESS);
		assertThat(item.getItemType()).isEqualTo(AvrcpItem.TYPE_MEDIA);
		assertThat(item.getUuid()).isNotNull(); // Random uuid
		}

		@Test
		public void onPlayPositionChanged() {
		int songLen = 100;
		int currSongPos = 33;

		mService.onPlayPositionChanged(REMOTE_DEVICE_ADDRESS_AS_ARRAY, songLen, currSongPos);

		verify(mStateMachine).sendMessage(
		AvrcpControllerStateMachine.MESSAGE_PROCESS_PLAY_POS_CHANGED, songLen, currSongPos);
		}

		@Test
		public void onPlayStatusChanged() {
		byte status = AvrcpControllerService.JNI_PLAY_STATUS_REV_SEEK;

		mService.onPlayStatusChanged(REMOTE_DEVICE_ADDRESS_AS_ARRAY, status);

		verify(mStateMachine).sendMessage(
		AvrcpControllerStateMachine.MESSAGE_PROCESS_PLAY_STATUS_CHANGED,
		PlaybackStateCompat.STATE_REWINDING);
		}

		@Test
		public void onPlayerAppSettingChanged() {
		byte[] playerAttribRsp = new byte[] {PlayerApplicationSettings.REPEAT_STATUS,
		PlayerApplicationSettings.JNI_REPEAT_STATUS_ALL_TRACK_REPEAT};

		mService.onPlayerAppSettingChanged(REMOTE_DEVICE_ADDRESS_AS_ARRAY, playerAttribRsp, 2);

		verify(mStateMachine).sendMessage(
		eq(AvrcpControllerStateMachine.MESSAGE_PROCESS_CURRENT_APPLICATION_SETTINGS),
		any(PlayerApplicationSettings.class));
		}

		@Test
		public void onAvailablePlayerChanged() {
		mService.onAvailablePlayerChanged(REMOTE_DEVICE_ADDRESS_AS_ARRAY);

		verify(mStateMachine).sendMessage(
		AvrcpControllerStateMachine.MESSAGE_PROCESS_AVAILABLE_PLAYER_CHANGED);
		}

		@Test
		public void handleGetFolderItemsRsp() {
		int status = 2;
		AvrcpItem[] items = new AvrcpItem[] {mock(AvrcpItem.class)};

		mService.handleGetFolderItemsRsp(REMOTE_DEVICE_ADDRESS_AS_ARRAY, status, items);

		verify(mStateMachine).sendMessage(
		eq(AvrcpControllerStateMachine.MESSAGE_PROCESS_GET_FOLDER_ITEMS),
		eq(new ArrayList<>(Arrays.asList(items))));
		}

		@Test
		public void handleGetPlayerItemsRsp() {
		AvrcpPlayer[] items = new AvrcpPlayer[] {mock(AvrcpPlayer.class)};

		mService.handleGetPlayerItemsRsp(REMOTE_DEVICE_ADDRESS_AS_ARRAY, items);

		verify(mStateMachine).sendMessage(
		eq(AvrcpControllerStateMachine.MESSAGE_PROCESS_GET_PLAYER_ITEMS),
		eq(new ArrayList<>(Arrays.asList(items))));
		}
		}