1/*
2 * Copyright (C) 2012 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 */
16package com.android.test.runner.listener;
17
18import android.util.Log;
19
20import org.junit.runner.Description;
21import org.junit.runner.notification.RunListener;
22
23/**
24 * A {@link RunListener} that injects a given delay between tests.
25 */
26public class DelayInjector extends RunListener {
27
28    private final int mDelayMsec;
29
30    /**
31     * @param delayMsec
32     */
33    public DelayInjector(int delayMsec) {
34        mDelayMsec = delayMsec;
35    }
36
37    @Override
38    public void testRunStarted(Description description) throws Exception {
39        // delay before first test
40        delay();
41    }
42
43    @Override
44    public void testFinished(Description description) throws Exception {
45        // delay after every test
46        delay();
47    }
48
49    private void delay() {
50        try {
51            Thread.sleep(mDelayMsec);
52        } catch (InterruptedException e) {
53            Log.e("DelayInjector", "interrupted", e);
54        }
55    }
56}
57