testsleep.java

jbpm的demo,带有流程设计

/**
 * $Source: /home/ws/rz65/CVS-Repository/WorkflowProjects/JBPM-Demo/src/test/testjbpmdemo/testutil/TestSleep.java,v $
 * $Revision: 1.1 $
 * $Date: 2005/03/05 12:16:29 $
 * $Author: rz65 $
 *
 * Copyright (c) 2005 Universitaet Karlsruhe (TH) / Rechenzentrum (RZ-UNI-UKA)
 *
 * RZ-UNI-KA makes no representations or warranties about the suitability
 * of this software, either express or implied, including but not limited
 * to the implied warranties of merchantability, fitness for a particular
 * purpose, or non-infringement. RZ-UNI-KA shall not be liable for any
 * damages as a result of using, modifying or distributing this software
 * or its derivatives.
 */

package testjbpmdemo.testutil;

import jbpmdemo.util.Sleep;
import testjbpmdemo.testutil.AbstractUtilTestCase;


import junit.framework.Test;
import junit.framework.TestSuite;
import junit.textui.TestRunner;

/**
 * A test case for the class {@link Sleep}.
 * 
 * <p>
 * 
 * @version $Revision: 1.1 $
 * @author mailto:[e-mail]
 */

public class TestSleep extends AbstractUtilTestCase {

	/**
	 * Builds a test case instance.
	 * 
	 * @param name
	 *            The name of the case.
	 */
	public TestSleep(String name) {
		super(name);
	}

	/**
	 * The stand-alone run main method.
	 * 
	 * @param args
	 *            The run-time arguments (ignored)
	 */
	public static void main(String[] args) {
		TestRunner.run(suite());
	}

	/**
	 * Creates a test suite from this class.
	 * 
	 * @return The test suite that covers all test... methods
	 */
	public static Test suite() {
		return new TestSuite(TestSleep.class);
	}

	private long now() {
		return System.currentTimeMillis();
	}

	// tolerance in milliseconds because of errors caused by the timing
	// granularity
	private static final long TOL = 10;

	/**
	 * Check the millisecond sleep method.
	 */
	public void testSleepMillis() {
		long msec1 = now();
		long delay = 150;
		Sleep.sleepMillis(delay);
		long msec2 = now();
		assertTrue(msec2 - msec1 + TOL >= delay);
	}

	/**
	 * Check the second sleep method.
	 */
	public void testSleepSeconds() {
		long msec1 = now();
		long delay = 3;
		Sleep.sleepSeconds(delay);
		long msec2 = now();
		assertTrue(msec2 - msec1 + TOL >= 1000 * delay);
	}
}