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/*
* Copyright (C) 2010 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.i18n.addressinput.testing;
import junit.framework.TestCase;
import java.util.concurrent.TimeoutException;
/**
* An extension of TestCase that provides delayTestFinish() and finishTest() methods that behave
* like the corresponding methods in GWTTestCase for testing asynchronous code.
*/
public abstract class AsyncTestCase extends TestCase {
/**
* Tracks whether this test is completely done.
*/
private boolean testIsFinished;
/**
* The system time in milliseconds when the test should time out.
*/
private long testTimeoutMillis;
/**
* Puts the current test in asynchronous mode.
*
* @param timeoutMillis time to wait before failing the test for timing out
*/
protected void delayTestFinish(int timeoutMillis) {
testTimeoutMillis = System.currentTimeMillis() + timeoutMillis;
}
/**
* Causes this test to succeed during asynchronous mode.
*/
protected void finishTest() {
testIsFinished = true;
synchronized (this) {
notify();
}
}
@Override
protected void runTest() throws Throwable {
testIsFinished = false;
testTimeoutMillis = 0;
super.runTest();
if (testTimeoutMillis > 0) {
long timeoutMillis = testTimeoutMillis - System.currentTimeMillis();
if (timeoutMillis > 0) {
synchronized (this) {
wait(timeoutMillis);
}
}
if (!testIsFinished) {
throw new TimeoutException("Waited " + timeoutMillis + " ms!");
}
}
}
}
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