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
17package com.android.support.car.apitest;
18
19import android.os.Looper;
20import android.support.car.Car;
21import android.support.car.CarConnectionCallback;
22import android.test.AndroidTestCase;
23
24import java.util.concurrent.Semaphore;
25import java.util.concurrent.TimeUnit;
26
27public class CarApiTestBase extends AndroidTestCase {
28    protected static final long DEFAULT_WAIT_TIMEOUT_MS = 1000;
29
30    private Car mCar;
31
32    private final DefaultCarConnectionCallback mConnectionCallbacks =
33            new DefaultCarConnectionCallback();
34
35    protected void assertMainThread() {
36        assertTrue(Looper.getMainLooper().isCurrentThread());
37    }
38
39    @Override
40    protected void setUp() throws Exception {
41        super.setUp();
42        mCar = Car.createCar(getContext(), mConnectionCallbacks);
43        mCar.connect();
44        mConnectionCallbacks.waitForConnection(DEFAULT_WAIT_TIMEOUT_MS);
45    }
46
47    @Override
48    protected void tearDown() throws Exception {
49        super.tearDown();
50        mCar.disconnect();
51    }
52
53    protected synchronized Car getCar() {
54        return mCar;
55    }
56
57    protected class DefaultCarConnectionCallback extends CarConnectionCallback {
58        private final Semaphore mConnectionWait = new Semaphore(0);
59
60        public void waitForConnection(long timeoutMs) throws InterruptedException {
61            mConnectionWait.tryAcquire(timeoutMs, TimeUnit.MILLISECONDS);
62        }
63        @Override
64        public void onDisconnected(Car car) {
65            assertMainThread();
66        }
67
68        @Override
69        public void onConnected(Car car) {
70            assertMainThread();
71            mConnectionWait.release();
72        }
73    }
74}
75