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      1 /*
      2  * Copyright (C) 2015 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 package android.car.test;
     17 
     18 import android.annotation.RequiresPermission;
     19 import android.annotation.SystemApi;
     20 import android.car.Car;
     21 import android.car.CarManagerBase;
     22 import android.os.IBinder;
     23 import android.os.RemoteException;
     24 
     25 /**
     26  * API for testing only. Allows mocking vehicle hal.
     27  * @hide
     28  */
     29 @SystemApi
     30 public final class CarTestManager implements CarManagerBase {
     31 
     32     private final ICarTest mService;
     33 
     34 
     35     public CarTestManager(IBinder carServiceBinder) {
     36         mService = ICarTest.Stub.asInterface(carServiceBinder);
     37     }
     38 
     39     @Override
     40     public void onCarDisconnected() {
     41         // should not happen for embedded
     42     }
     43 
     44     /**
     45      * Releases all car services. This make sense for test purpose when it is necessary to reduce
     46      * interference between testing and real instances of Car Service. For example changing audio
     47      * focus in CarAudioService may affect framework's AudioManager listeners. AudioManager has a
     48      * lot of complex logic which is hard to mock.
     49      */
     50     @RequiresPermission(Car.PERMISSION_CAR_TEST_SERVICE)
     51     public void stopCarService(IBinder token) {
     52         try {
     53             mService.stopCarService(token);
     54         } catch (RemoteException e) {
     55             handleRemoteException(e);
     56         }
     57     }
     58 
     59     /**
     60      * Re-initializes previously released car service.
     61      *
     62      * @see {@link #stopCarService(IBinder)}
     63      */
     64     @RequiresPermission(Car.PERMISSION_CAR_TEST_SERVICE)
     65     public void startCarService(IBinder token) {
     66         try {
     67             mService.startCarService(token);
     68         } catch (RemoteException e) {
     69             handleRemoteException(e);
     70         }
     71     }
     72 
     73     private static void handleRemoteException(RemoteException e) {
     74         // let test fail
     75         throw new RuntimeException(e);
     76     }
     77 }
     78