// Place GameMatch test code inside of the GameMatch class.

    public static void matchTest4 () {
	final GameMatch match = new GameMatch(2);

	// Instantiate the threads
	KThread beg1 = new KThread( new Runnable () {
		public void run() {
		    int r = match.play(GameMatch.abilityBeginner);
		    System.out.println ("beg1 matched");
		    // beginners should match with a match number of 1
		    Lib.assertTrue(r == 1, "expected match number of 1");
		}
	    });
	beg1.setName("B1");

	KThread beg2 = new KThread( new Runnable () {
		public void run() {
		    int r = match.play(GameMatch.abilityBeginner);
		    System.out.println ("beg2 matched");
		    // beginners should match with a match number of 1
		    Lib.assertTrue(r == 1, "expected match number of 1");
		}
	    });
	beg2.setName("B2");

	KThread int1 = new KThread( new Runnable () {
		public void run() {
		    int r = match.play(GameMatch.abilityIntermediate);
		    Lib.assertNotReached("int1 should not have matched!");
		}
	    });
	int1.setName("I1");

	KThread exp1 = new KThread( new Runnable () {
		public void run() {
		    int r = match.play(GameMatch.abilityExpert);
		    Lib.assertNotReached("exp1 should not have matched!");
		}
	    });
	exp1.setName("E1");

	// Run the threads.  The beginner threads should successfully
	// form a match, the other threads should not.  The outcome
	// should be the same independent of the order in which threads
	// are forked.
	beg1.fork();
	int1.fork();
	exp1.fork();
	beg2.fork();

	// Assume join is not implemented, use yield to allow other
	// threads to run
	for (int i = 0; i < 10; i++) {
	    KThread.currentThread().yield();
	}
    }
    
    public static void selfTest() {
	matchTest4();
    }