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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 com.android.car.test;
     17 
     18 import android.car.test.VehicleHalEmulator;
     19 import android.content.ComponentName;
     20 import android.content.ServiceConnection;
     21 import android.os.Handler;
     22 import android.os.IBinder;
     23 import android.os.Looper;
     24 import android.support.car.Car;
     25 import android.support.car.ServiceConnectionListener;
     26 import android.test.AndroidTestCase;
     27 import android.util.Log;
     28 
     29 import java.util.concurrent.Semaphore;
     30 import java.util.concurrent.TimeUnit;
     31 
     32 /**
     33  * Base class for testing with mocked vehicle HAL (=car).
     34  * It is up to each app to start emulation by getVehicleHalEmulator().start() as there will be
     35  * per test set up that should be done before starting.
     36  */
     37 public class MockedCarTestBase extends AndroidTestCase {
     38     private static final String TAG = MockedCarTestBase.class.getSimpleName();
     39     private static final long DEFAULT_WAIT_TIMEOUT_MS = 3000;
     40 
     41     private Car mSupportCar;
     42     private android.car.Car mCar;
     43     private VehicleHalEmulator mVehicleHalEmulator;
     44 
     45     private final Semaphore mConnectionWaitForSupportCar = new Semaphore(0);
     46     private final Semaphore mConnectionWaitForCar = new Semaphore(0);
     47     private final Semaphore mWaitForMain = new Semaphore(0);
     48     private final Handler mMainHalder = new Handler(Looper.getMainLooper());
     49 
     50     private final ServiceConnectionListener mConnectionListener = new ServiceConnectionListener() {
     51 
     52         @Override
     53         public void onServiceSuspended(int cause) {
     54         }
     55 
     56         @Override
     57         public void onServiceDisconnected(ComponentName name) {
     58         }
     59 
     60         @Override
     61         public void onServiceConnectionFailed(int cause) {
     62         }
     63 
     64         @Override
     65         public void onServiceConnected(ComponentName name) {
     66             Log.i(TAG, "onServiceConnected, component" + name);
     67             mConnectionWaitForSupportCar.release();
     68         }
     69     };
     70 
     71     @Override
     72     protected synchronized void setUp() throws Exception {
     73         super.setUp();
     74         mSupportCar = Car.createCar(getContext(), mConnectionListener);
     75         mSupportCar.connect();
     76         mCar = android.car.Car.createCar(getContext(), new ServiceConnection() {
     77 
     78             @Override
     79             public void onServiceConnected(ComponentName name, IBinder service) {
     80                 mConnectionWaitForCar.release();
     81             }
     82 
     83             @Override
     84             public void onServiceDisconnected(ComponentName name) {
     85             }
     86         });
     87         mCar.connect();
     88         assertTrue(waitForConnection(DEFAULT_WAIT_TIMEOUT_MS));
     89         assertTrue(mConnectionWaitForCar.tryAcquire(DEFAULT_WAIT_TIMEOUT_MS, TimeUnit.MILLISECONDS)
     90                 );
     91         mVehicleHalEmulator = new VehicleHalEmulator(mCar);
     92     }
     93 
     94     @Override
     95     protected synchronized void tearDown() throws Exception {
     96         super.tearDown();
     97         if (mVehicleHalEmulator.isStarted()) {
     98             mVehicleHalEmulator.stop();
     99         }
    100         mSupportCar.disconnect();
    101         mCar.disconnect();
    102     }
    103 
    104     protected synchronized Car getSupportCar() {
    105         return mSupportCar;
    106     }
    107 
    108     protected synchronized android.car.Car getCar() {
    109         return mCar;
    110     }
    111 
    112     protected void runOnMain(final Runnable r) {
    113         mMainHalder.post(r);
    114     }
    115 
    116     protected void runOnMainSync(final Runnable r) throws Exception {
    117         mMainHalder.post(new Runnable() {
    118             @Override
    119             public void run() {
    120                 r.run();
    121                 mWaitForMain.release();
    122             }
    123         });
    124         mWaitForMain.acquire();
    125     }
    126 
    127     protected synchronized VehicleHalEmulator getVehicleHalEmulator() {
    128         return mVehicleHalEmulator;
    129     }
    130 
    131     private boolean waitForConnection(long timeoutMs) throws InterruptedException {
    132         return mConnectionWaitForSupportCar.tryAcquire(timeoutMs, TimeUnit.MILLISECONDS);
    133     }
    134 }
    135