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root/jsr166/jsr166/src/test/tck/JSR166TestCase.java

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.79 by jsr166, Mon May 9 20:00:19 2011 UTC vs.
Revision 1.94 by jsr166, Mon Jan 21 19:32:19 2013 UTC

#	Line 11 | Line 11 | import java.io.ByteArrayInputStream;
11		import java.io.ByteArrayOutputStream;
12		import java.io.ObjectInputStream;
13		import java.io.ObjectOutputStream;
14	+	import java.util.ArrayList;
15		import java.util.Arrays;
16	+	import java.util.Date;
17	+	import java.util.Enumeration;
18	+	import java.util.List;
19		import java.util.NoSuchElementException;
20		import java.util.PropertyPermission;
21		import java.util.concurrent.*;
22	+	import java.util.concurrent.atomic.AtomicBoolean;
23		import java.util.concurrent.atomic.AtomicReference;
24		import static java.util.concurrent.TimeUnit.MILLISECONDS;
25		import static java.util.concurrent.TimeUnit.NANOSECONDS;
#	Line 67 | Line 72 | import java.security.SecurityPermission;
72		*
73		* </ol>
74		*
75	<	* <p> <b>Other notes</b>
75	>	* <p><b>Other notes</b>
76		* <ul>
77		*
78		* <li> Usually, there is one testcase method per JSR166 method
#	Line 140 | Line 145 | public class JSR166TestCase extends Test
145		}
146
147		/**
148	<	* Runs all JSR166 unit tests using junit.textui.TestRunner
148	>	* Runs all JSR166 unit tests using junit.textui.TestRunner.
149	>	* Optional command line arg provides the number of iterations to
150	>	* repeat running the tests.
151		*/
152		public static void main(String[] args) {
153		if (useSecurityManager) {
#	Line 258 | Line 265 | public class JSR166TestCase extends Test
265		return 50;
266		}
267
261	–
268		/**
269		* Sets delays as multiples of SHORT_DELAY.
270		*/
#	Line 270 | Line 276 | public class JSR166TestCase extends Test
276		}
277
278		/**
279	+	* Returns a timeout in milliseconds to be used in tests that
280	+	* verify that operations block or time out.
281	+	*/
282	+	long timeoutMillis() {
283	+	return SHORT_DELAY_MS / 4;
284	+	}
285	+
286	+	/**
287	+	* Returns a new Date instance representing a time delayMillis
288	+	* milliseconds in the future.
289	+	*/
290	+	Date delayedDate(long delayMillis) {
291	+	return new Date(System.currentTimeMillis() + delayMillis);
292	+	}
293	+
294	+	/**
295		* The first exception encountered if any threadAssertXXX method fails.
296		*/
297		private final AtomicReference<Throwable> threadFailure
#	Line 290 | Line 312 | public class JSR166TestCase extends Test
312		}
313
314		/**
315	+	* Extra checks that get done for all test cases.
316	+	*
317		* Triggers test case failure if any thread assertions have failed,
318		* by rethrowing, in the test harness thread, any exception recorded
319		* earlier by threadRecordFailure.
320	+	*
321	+	* Triggers test case failure if interrupt status is set in the main thread.
322		*/
323		public void tearDown() throws Exception {
324		Throwable t = threadFailure.getAndSet(null);
#	Line 310 | Line 336 | public class JSR166TestCase extends Test
336		throw afe;
337		}
338		}
339	+
340	+	if (Thread.interrupted())
341	+	throw new AssertionFailedError("interrupt status set in main thread");
342		}
343
344		/**
#	Line 441 | Line 470 | public class JSR166TestCase extends Test
470		else {
471		AssertionFailedError afe =
472		new AssertionFailedError("unexpected exception: " + t);
473	<	t.initCause(t);
473	>	afe.initCause(t);
474		throw afe;
475		}
476		}
477
478		/**
479	<	* Delays, via Thread.sleep for the given millisecond delay, but
479	>	* Delays, via Thread.sleep, for the given millisecond delay, but
480		* if the sleep is shorter than specified, may re-sleep or yield
481		* until time elapses.
482		*/
483	<	public static void delay(long ms) throws InterruptedException {
483	>	static void delay(long millis) throws InterruptedException {
484		long startTime = System.nanoTime();
485	<	long ns = ms * 1000 * 1000;
485	>	long ns = millis * 1000 * 1000;
486		for (;;) {
487	<	if (ms > 0L)
488	<	Thread.sleep(ms);
487	>	if (millis > 0L)
488	>	Thread.sleep(millis);
489		else // too short to sleep
490		Thread.yield();
491		long d = ns - (System.nanoTime() - startTime);
492		if (d > 0L)
493	<	ms = d / (1000 * 1000);
493	>	millis = d / (1000 * 1000);
494		else
495		break;
496		}
#	Line 470 | Line 499 | public class JSR166TestCase extends Test
499		/**
500		* Waits out termination of a thread pool or fails doing so.
501		*/
502	<	public void joinPool(ExecutorService exec) {
502	>	void joinPool(ExecutorService exec) {
503		try {
504		exec.shutdown();
505		assertTrue("ExecutorService did not terminate in a timely manner",
#	Line 483 | Line 512 | public class JSR166TestCase extends Test
512		}
513
514		/**
515	<	* Checks that thread does not terminate within timeoutMillis
516	<	* milliseconds (that is, Thread.join times out).
515	>	* Checks that thread does not terminate within the default
516	>	* millisecond delay of {@code timeoutMillis()}.
517		*/
518	<	public void assertThreadJoinTimesOut(Thread thread, long timeoutMillis) {
518	>	void assertThreadStaysAlive(Thread thread) {
519	>	assertThreadStaysAlive(thread, timeoutMillis());
520	>	}
521	>
522	>	/**
523	>	* Checks that thread does not terminate within the given millisecond delay.
524	>	*/
525	>	void assertThreadStaysAlive(Thread thread, long millis) {
526		try {
527	<	long startTime = System.nanoTime();
528	<	thread.join(timeoutMillis);
527	>	// No need to optimize the failing case via Thread.join.
528	>	delay(millis);
529		assertTrue(thread.isAlive());
494	–	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
530		} catch (InterruptedException ie) {
531		fail("Unexpected InterruptedException");
532		}
533		}
534
535		/**
536	+	* Checks that the threads do not terminate within the default
537	+	* millisecond delay of {@code timeoutMillis()}.
538	+	*/
539	+	void assertThreadsStayAlive(Thread... threads) {
540	+	assertThreadsStayAlive(timeoutMillis(), threads);
541	+	}
542	+
543	+	/**
544	+	* Checks that the threads do not terminate within the given millisecond delay.
545	+	*/
546	+	void assertThreadsStayAlive(long millis, Thread... threads) {
547	+	try {
548	+	// No need to optimize the failing case via Thread.join.
549	+	delay(millis);
550	+	for (Thread thread : threads)
551	+	assertTrue(thread.isAlive());
552	+	} catch (InterruptedException ie) {
553	+	fail("Unexpected InterruptedException");
554	+	}
555	+	}
556	+
557	+	/**
558	+	* Checks that future.get times out, with the default timeout of
559	+	* {@code timeoutMillis()}.
560	+	*/
561	+	void assertFutureTimesOut(Future future) {
562	+	assertFutureTimesOut(future, timeoutMillis());
563	+	}
564	+
565	+	/**
566	+	* Checks that future.get times out, with the given millisecond timeout.
567	+	*/
568	+	void assertFutureTimesOut(Future future, long timeoutMillis) {
569	+	long startTime = System.nanoTime();
570	+	try {
571	+	future.get(timeoutMillis, MILLISECONDS);
572	+	shouldThrow();
573	+	} catch (TimeoutException success) {
574	+	} catch (Exception e) {
575	+	threadUnexpectedException(e);
576	+	} finally { future.cancel(true); }
577	+	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
578	+	}
579	+
580	+	/**
581		* Fails with message "should throw exception".
582		*/
583		public void shouldThrow() {
#	Line 548 | Line 628 | public class JSR166TestCase extends Test
628		SecurityManager sm = System.getSecurityManager();
629		if (sm == null) {
630		r.run();
631	+	}
632	+	runWithSecurityManagerWithPermissions(r, permissions);
633	+	}
634	+
635	+	/**
636	+	* Runs Runnable r with a security policy that permits precisely
637	+	* the specified permissions.  If there is no current security
638	+	* manager, a temporary one is set for the duration of the
639	+	* Runnable.  We require that any security manager permit
640	+	* getPolicy/setPolicy.
641	+	*/
642	+	public void runWithSecurityManagerWithPermissions(Runnable r,
643	+	Permission... permissions) {
644	+	SecurityManager sm = System.getSecurityManager();
645	+	if (sm == null) {
646		Policy savedPolicy = Policy.getPolicy();
647		try {
648		Policy.setPolicy(permissivePolicy());
649		System.setSecurityManager(new SecurityManager());
650	<	runWithPermissions(r, permissions);
650	>	runWithSecurityManagerWithPermissions(r, permissions);
651		} finally {
652		System.setSecurityManager(null);
653		Policy.setPolicy(savedPolicy);
#	Line 600 | Line 695 | public class JSR166TestCase extends Test
695		return perms.implies(p);
696		}
697		public void refresh() {}
698	+	public String toString() {
699	+	List<Permission> ps = new ArrayList<Permission>();
700	+	for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
701	+	ps.add(e.nextElement());
702	+	return "AdjustablePolicy with permissions " + ps;
703	+	}
704		}
705
706		/**
#	Line 637 | Line 738 | public class JSR166TestCase extends Test
738		}
739
740		/**
741	<	* Sleeps until the timeout has elapsed, or interrupted.
641	<	* Does <em>NOT</em> throw InterruptedException.
642	<	*/
643	<	void sleepTillInterrupted(long timeoutMillis) {
644	<	try {
645	<	Thread.sleep(timeoutMillis);
646	<	} catch (InterruptedException wakeup) {}
647	<	}
648	<
649	<	/**
650	<	* Waits up to the specified number of milliseconds for the given
741	>	* Spin-waits up to the specified number of milliseconds for the given
742		* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
743		*/
744		void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
745	<	long timeoutNanos = timeoutMillis * 1000L * 1000L;
655	<	long t0 = System.nanoTime();
745	>	long startTime = System.nanoTime();
746		for (;;) {
747		Thread.State s = thread.getState();
748		if (s == Thread.State.BLOCKED ||
#	Line 661 | Line 751 | public class JSR166TestCase extends Test
751		return;
752		else if (s == Thread.State.TERMINATED)
753		fail("Unexpected thread termination");
754	<	else if (System.nanoTime() - t0 > timeoutNanos) {
754	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
755		threadAssertTrue(thread.isAlive());
756		return;
757		}
#	Line 707 | Line 797 | public class JSR166TestCase extends Test
797		} catch (InterruptedException ie) {
798		threadUnexpectedException(ie);
799		} finally {
800	<	if (t.isAlive()) {
800	>	if (t.getState() != Thread.State.TERMINATED) {
801		t.interrupt();
802		fail("Test timed out");
803		}
#	Line 785 | Line 875 | public class JSR166TestCase extends Test
875		realRun();
876		threadShouldThrow("InterruptedException");
877		} catch (InterruptedException success) {
878	+	threadAssertFalse(Thread.interrupted());
879		} catch (Throwable t) {
880		threadUnexpectedException(t);
881		}
#	Line 814 | Line 905 | public class JSR166TestCase extends Test
905		threadShouldThrow("InterruptedException");
906		return result;
907		} catch (InterruptedException success) {
908	+	threadAssertFalse(Thread.interrupted());
909		} catch (Throwable t) {
910		threadUnexpectedException(t);
911		}
#	Line 860 | Line 952 | public class JSR166TestCase extends Test
952		}
953		}
954
955	+	public void await(Semaphore semaphore) {
956	+	try {
957	+	assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS));
958	+	} catch (Throwable t) {
959	+	threadUnexpectedException(t);
960	+	}
961	+	}
962	+
963	+	//     /**
964	+	//      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
965	+	//      */
966	+	//     public void await(AtomicBoolean flag) {
967	+	//         await(flag, LONG_DELAY_MS);
968	+	//     }
969	+
970	+	//     /**
971	+	//      * Spin-waits up to the specified timeout until flag becomes true.
972	+	//      */
973	+	//     public void await(AtomicBoolean flag, long timeoutMillis) {
974	+	//         long startTime = System.nanoTime();
975	+	//         while (!flag.get()) {
976	+	//             if (millisElapsedSince(startTime) > timeoutMillis)
977	+	//                 throw new AssertionFailedError("timed out");
978	+	//             Thread.yield();
979	+	//         }
980	+	//     }
981	+
982		public static class NPETask implements Callable<String> {
983		public String call() { throw new NullPointerException(); }
984		}
#	Line 1062 | Line 1181 | public class JSR166TestCase extends Test
1181		}
1182
1183		/**
1184	<	* A CyclicBarrier that fails with AssertionFailedErrors instead
1185	<	* of throwing checked exceptions.
1184	>	* A CyclicBarrier that uses timed await and fails with
1185	>	* AssertionFailedErrors instead of throwing checked exceptions.
1186		*/
1187		public class CheckedBarrier extends CyclicBarrier {
1188		public CheckedBarrier(int parties) { super(parties); }
1189
1190		public int await() {
1191		try {
1192	<	return super.await();
1192	>	return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1193	>	} catch (TimeoutException e) {
1194	>	throw new AssertionFailedError("timed out");
1195		} catch (Exception e) {
1196		AssertionFailedError afe =
1197		new AssertionFailedError("Unexpected exception: " + e);
#	Line 1080 | Line 1201 | public class JSR166TestCase extends Test
1201		}
1202		}
1203
1204	<	public void checkEmpty(BlockingQueue q) {
1204	>	void checkEmpty(BlockingQueue q) {
1205		try {
1206		assertTrue(q.isEmpty());
1207		assertEquals(0, q.size());
#	Line 1107 | Line 1228 | public class JSR166TestCase extends Test
1228		}
1229		}
1230
1231	<	@SuppressWarnings("unchecked")
1232	<	public <T> T serialClone(T o) {
1231	>	void assertSerialEquals(Object x, Object y) {
1232	>	assertTrue(Arrays.equals(serialBytes(x), serialBytes(y)));
1233	>	}
1234	>
1235	>	void assertNotSerialEquals(Object x, Object y) {
1236	>	assertFalse(Arrays.equals(serialBytes(x), serialBytes(y)));
1237	>	}
1238	>
1239	>	byte[] serialBytes(Object o) {
1240		try {
1241		ByteArrayOutputStream bos = new ByteArrayOutputStream();
1242		ObjectOutputStream oos = new ObjectOutputStream(bos);
1243		oos.writeObject(o);
1244		oos.flush();
1245		oos.close();
1246	<	ByteArrayInputStream bin =
1247	<	new ByteArrayInputStream(bos.toByteArray());
1248	<	ObjectInputStream ois = new ObjectInputStream(bin);
1249	<	return (T) ois.readObject();
1246	>	return bos.toByteArray();
1247	>	} catch (Throwable t) {
1248	>	threadUnexpectedException(t);
1249	>	return new byte[0];
1250	>	}
1251	>	}
1252	>
1253	>	@SuppressWarnings("unchecked")
1254	>	<T> T serialClone(T o) {
1255	>	try {
1256	>	ObjectInputStream ois = new ObjectInputStream
1257	>	(new ByteArrayInputStream(serialBytes(o)));
1258	>	T clone = (T) ois.readObject();
1259	>	assertSame(o.getClass(), clone.getClass());
1260	>	return clone;
1261		} catch (Throwable t) {
1262		threadUnexpectedException(t);
1263		return null;

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