org.eclipse.mylyn.monitor.tests/src/org/eclipse/mylyn/monitor/tests/ActiveTimerTest.java

/*******************************************************************************
 * Copyright (c) 2004 - 2006 University Of British Columbia and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     University Of British Columbia - initial API and implementation
 *******************************************************************************/

package org.eclipse.mylar.monitor.tests;

import org.eclipse.mylar.internal.core.util.ITimerThreadListener;
import org.eclipse.mylar.internal.core.util.TimerThread;

import junit.framework.TestCase;

/**
 * @author Shawn Minto
 * @author Mik Kersten
 */
public class ActiveTimerTest extends TestCase {

	private boolean gotTimeOut = false;

	private TimerThread thread;

	private ITimerThreadListener listener = new ITimerThreadListener() {

		public void fireTimedOut() {
			gotTimeOut = true;
			thread.kill();
		}

		public void intervalElapsed() {
			// ignore
		}

	};

	private ITimerThreadListener listener2 = new ITimerThreadListener() {

		public void fireTimedOut() {
			gotTimeOut = true;
		}

		public void intervalElapsed() {
			// ignore
		}

	};

	public void testActiveTimer() {
		thread = new TimerThread(600, 100);
		thread.addListener(listener);
		int i = 0;
		gotTimeOut = false;
		thread.start();
		while (!gotTimeOut) {
			i++;
			try {
				Thread.sleep(100);
			} catch (InterruptedException e) {
			}
		}
		assertFalse("Too long of a wait (" + i + ")", i > 8);
		assertFalse("Too short of a wait (" + i + ")", i < 6);

		thread = new TimerThread(1000, 100);
		thread.addListener(listener2);
		i = 0;
		gotTimeOut = false;
		thread.start();
		for (int j = 0; j < 10; j++) {
			try {
				Thread.sleep(100);
			} catch (InterruptedException e) {
			}
			thread.resetTimer();
		}
		while (!gotTimeOut) {
			i++;
			try {
				Thread.sleep(100);
			} catch (InterruptedException e) {
			}
		}
		thread.kill();
		assertFalse("Too long of a wait (" + i + ")", i > 12);
		assertFalse("Too short of a wait (" + i + ")", i < 10);
	}
}