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package org.apache.commons.lang.time;

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

/**
 * TestCase for StopWatch.
 *
 * @author Stephen Colebourne
 * @version $Id: StopWatchTest.java,v 1.6 2003/08/18 02:22:28 bayard Exp $
 */
public class StopWatchTest extends TestCase {

    public static void main(String[] args) {
        TestRunner.run(suite());
    }

    public static Test suite() {
    	TestSuite suite = new TestSuite(StopWatchTest.class);
    	suite.setName("StopWatch Tests");
        return suite;
    }

    public StopWatchTest(String s) {
        super(s);
    }

    //-----------------------------------------------------------------------
    public void testStopWatchSimple(){
        StopWatch watch = new StopWatch();
        watch.start();
            try {Thread.sleep(550);} catch (InterruptedException ex) {}
        watch.stop();
        long time = watch.getTime();
        assertEquals(time, watch.getTime());
        
        assertTrue(time >= 500);
        assertTrue(time < 700);
        
        watch.reset();
        assertEquals(0, watch.getTime());
    }
    
    public void testStopWatchSimpleGet(){
        StopWatch watch = new StopWatch();
        assertEquals(0, watch.getTime());
        assertEquals("0:00:00.000", watch.toString());
        
        watch.start();
            try {Thread.sleep(500);} catch (InterruptedException ex) {}
        assertTrue(watch.getTime() < 2000);
    }
    
    public void testStopWatchSplit(){
        StopWatch watch = new StopWatch();
        watch.start();
            try {Thread.sleep(550);} catch (InterruptedException ex) {}
        watch.split();
        long splitTime = watch.getTime();
            try {Thread.sleep(550);} catch (InterruptedException ex) {}
        watch.unsplit();
            try {Thread.sleep(550);} catch (InterruptedException ex) {}
        watch.stop();
        long totalTime = watch.getTime();
        
//        System.err.println(splitTime +"  "+totalTime);
        assertTrue(splitTime >= 500);
        assertTrue(splitTime < 700);
        assertTrue(totalTime >= 1500);
        assertTrue(totalTime < 1900);
    }
    
    public void testStopWatchSuspend(){
        StopWatch watch = new StopWatch();
        watch.start();
            try {Thread.sleep(550);} catch (InterruptedException ex) {}
        watch.suspend();
        long suspendTime = watch.getTime();
            try {Thread.sleep(550);} catch (InterruptedException ex) {}
        watch.resume();
            try {Thread.sleep(550);} catch (InterruptedException ex) {}
        watch.stop();
        long totalTime = watch.getTime();
        
//        System.err.println(suspendTime +"  "+totalTime);
        assertTrue(suspendTime >= 500);
        assertTrue(suspendTime < 700);
        assertTrue(totalTime >= 1000);
        assertTrue(totalTime < 1300);
    }

}