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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 1.95 by jsr166, Mon Jan 21 19:43:52 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
487	<	* milliseconds (that is, Thread.join times out).
515	>	* A debugging tool to print all stack traces, as jstack does.
516		*/
517	<	public void assertThreadJoinTimesOut(Thread thread, long timeoutMillis) {
517	>	void printAllStackTraces() {
518	>	System.err.println(
519	>	Arrays.toString(
520	>	java.lang.management.ManagementFactory.getThreadMXBean()
521	>	.dumpAllThreads(true, true)));
522	>	}
523	>
524	>	/**
525	>	* Checks that thread does not terminate within the default
526	>	* millisecond delay of {@code timeoutMillis()}.
527	>	*/
528	>	void assertThreadStaysAlive(Thread thread) {
529	>	assertThreadStaysAlive(thread, timeoutMillis());
530	>	}
531	>
532	>	/**
533	>	* Checks that thread does not terminate within the given millisecond delay.
534	>	*/
535	>	void assertThreadStaysAlive(Thread thread, long millis) {
536		try {
537	<	long startTime = System.nanoTime();
538	<	thread.join(timeoutMillis);
537	>	// No need to optimize the failing case via Thread.join.
538	>	delay(millis);
539		assertTrue(thread.isAlive());
494	–	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
540		} catch (InterruptedException ie) {
541		fail("Unexpected InterruptedException");
542		}
543		}
544
545		/**
546	+	* Checks that the threads do not terminate within the default
547	+	* millisecond delay of {@code timeoutMillis()}.
548	+	*/
549	+	void assertThreadsStayAlive(Thread... threads) {
550	+	assertThreadsStayAlive(timeoutMillis(), threads);
551	+	}
552	+
553	+	/**
554	+	* Checks that the threads do not terminate within the given millisecond delay.
555	+	*/
556	+	void assertThreadsStayAlive(long millis, Thread... threads) {
557	+	try {
558	+	// No need to optimize the failing case via Thread.join.
559	+	delay(millis);
560	+	for (Thread thread : threads)
561	+	assertTrue(thread.isAlive());
562	+	} catch (InterruptedException ie) {
563	+	fail("Unexpected InterruptedException");
564	+	}
565	+	}
566	+
567	+	/**
568	+	* Checks that future.get times out, with the default timeout of
569	+	* {@code timeoutMillis()}.
570	+	*/
571	+	void assertFutureTimesOut(Future future) {
572	+	assertFutureTimesOut(future, timeoutMillis());
573	+	}
574	+
575	+	/**
576	+	* Checks that future.get times out, with the given millisecond timeout.
577	+	*/
578	+	void assertFutureTimesOut(Future future, long timeoutMillis) {
579	+	long startTime = System.nanoTime();
580	+	try {
581	+	future.get(timeoutMillis, MILLISECONDS);
582	+	shouldThrow();
583	+	} catch (TimeoutException success) {
584	+	} catch (Exception e) {
585	+	threadUnexpectedException(e);
586	+	} finally { future.cancel(true); }
587	+	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
588	+	}
589	+
590	+	/**
591		* Fails with message "should throw exception".
592		*/
593		public void shouldThrow() {
#	Line 548 | Line 638 | public class JSR166TestCase extends Test
638		SecurityManager sm = System.getSecurityManager();
639		if (sm == null) {
640		r.run();
641	+	}
642	+	runWithSecurityManagerWithPermissions(r, permissions);
643	+	}
644	+
645	+	/**
646	+	* Runs Runnable r with a security policy that permits precisely
647	+	* the specified permissions.  If there is no current security
648	+	* manager, a temporary one is set for the duration of the
649	+	* Runnable.  We require that any security manager permit
650	+	* getPolicy/setPolicy.
651	+	*/
652	+	public void runWithSecurityManagerWithPermissions(Runnable r,
653	+	Permission... permissions) {
654	+	SecurityManager sm = System.getSecurityManager();
655	+	if (sm == null) {
656		Policy savedPolicy = Policy.getPolicy();
657		try {
658		Policy.setPolicy(permissivePolicy());
659		System.setSecurityManager(new SecurityManager());
660	<	runWithPermissions(r, permissions);
660	>	runWithSecurityManagerWithPermissions(r, permissions);
661		} finally {
662		System.setSecurityManager(null);
663		Policy.setPolicy(savedPolicy);
#	Line 600 | Line 705 | public class JSR166TestCase extends Test
705		return perms.implies(p);
706		}
707		public void refresh() {}
708	+	public String toString() {
709	+	List<Permission> ps = new ArrayList<Permission>();
710	+	for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
711	+	ps.add(e.nextElement());
712	+	return "AdjustablePolicy with permissions " + ps;
713	+	}
714		}
715
716		/**
#	Line 637 | Line 748 | public class JSR166TestCase extends Test
748		}
749
750		/**
751	<	* 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
751	>	* Spin-waits up to the specified number of milliseconds for the given
752		* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
753		*/
754		void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
755	<	long timeoutNanos = timeoutMillis * 1000L * 1000L;
655	<	long t0 = System.nanoTime();
755	>	long startTime = System.nanoTime();
756		for (;;) {
757		Thread.State s = thread.getState();
758		if (s == Thread.State.BLOCKED ||
#	Line 661 | Line 761 | public class JSR166TestCase extends Test
761		return;
762		else if (s == Thread.State.TERMINATED)
763		fail("Unexpected thread termination");
764	<	else if (System.nanoTime() - t0 > timeoutNanos) {
764	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
765		threadAssertTrue(thread.isAlive());
766		return;
767		}
#	Line 707 | Line 807 | public class JSR166TestCase extends Test
807		} catch (InterruptedException ie) {
808		threadUnexpectedException(ie);
809		} finally {
810	<	if (t.isAlive()) {
810	>	if (t.getState() != Thread.State.TERMINATED) {
811		t.interrupt();
812		fail("Test timed out");
813		}
#	Line 785 | Line 885 | public class JSR166TestCase extends Test
885		realRun();
886		threadShouldThrow("InterruptedException");
887		} catch (InterruptedException success) {
888	+	threadAssertFalse(Thread.interrupted());
889		} catch (Throwable t) {
890		threadUnexpectedException(t);
891		}
#	Line 814 | Line 915 | public class JSR166TestCase extends Test
915		threadShouldThrow("InterruptedException");
916		return result;
917		} catch (InterruptedException success) {
918	+	threadAssertFalse(Thread.interrupted());
919		} catch (Throwable t) {
920		threadUnexpectedException(t);
921		}
#	Line 860 | Line 962 | public class JSR166TestCase extends Test
962		}
963		}
964
965	+	public void await(Semaphore semaphore) {
966	+	try {
967	+	assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS));
968	+	} catch (Throwable t) {
969	+	threadUnexpectedException(t);
970	+	}
971	+	}
972	+
973	+	//     /**
974	+	//      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
975	+	//      */
976	+	//     public void await(AtomicBoolean flag) {
977	+	//         await(flag, LONG_DELAY_MS);
978	+	//     }
979	+
980	+	//     /**
981	+	//      * Spin-waits up to the specified timeout until flag becomes true.
982	+	//      */
983	+	//     public void await(AtomicBoolean flag, long timeoutMillis) {
984	+	//         long startTime = System.nanoTime();
985	+	//         while (!flag.get()) {
986	+	//             if (millisElapsedSince(startTime) > timeoutMillis)
987	+	//                 throw new AssertionFailedError("timed out");
988	+	//             Thread.yield();
989	+	//         }
990	+	//     }
991	+
992		public static class NPETask implements Callable<String> {
993		public String call() { throw new NullPointerException(); }
994		}
#	Line 1062 | Line 1191 | public class JSR166TestCase extends Test
1191		}
1192
1193		/**
1194	<	* A CyclicBarrier that fails with AssertionFailedErrors instead
1195	<	* of throwing checked exceptions.
1194	>	* A CyclicBarrier that uses timed await and fails with
1195	>	* AssertionFailedErrors instead of throwing checked exceptions.
1196		*/
1197		public class CheckedBarrier extends CyclicBarrier {
1198		public CheckedBarrier(int parties) { super(parties); }
1199
1200		public int await() {
1201		try {
1202	<	return super.await();
1202	>	return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1203	>	} catch (TimeoutException e) {
1204	>	throw new AssertionFailedError("timed out");
1205		} catch (Exception e) {
1206		AssertionFailedError afe =
1207		new AssertionFailedError("Unexpected exception: " + e);
#	Line 1080 | Line 1211 | public class JSR166TestCase extends Test
1211		}
1212		}
1213
1214	<	public void checkEmpty(BlockingQueue q) {
1214	>	void checkEmpty(BlockingQueue q) {
1215		try {
1216		assertTrue(q.isEmpty());
1217		assertEquals(0, q.size());
#	Line 1107 | Line 1238 | public class JSR166TestCase extends Test
1238		}
1239		}
1240
1241	<	@SuppressWarnings("unchecked")
1242	<	public <T> T serialClone(T o) {
1241	>	void assertSerialEquals(Object x, Object y) {
1242	>	assertTrue(Arrays.equals(serialBytes(x), serialBytes(y)));
1243	>	}
1244	>
1245	>	void assertNotSerialEquals(Object x, Object y) {
1246	>	assertFalse(Arrays.equals(serialBytes(x), serialBytes(y)));
1247	>	}
1248	>
1249	>	byte[] serialBytes(Object o) {
1250		try {
1251		ByteArrayOutputStream bos = new ByteArrayOutputStream();
1252		ObjectOutputStream oos = new ObjectOutputStream(bos);
1253		oos.writeObject(o);
1254		oos.flush();
1255		oos.close();
1256	<	ByteArrayInputStream bin =
1257	<	new ByteArrayInputStream(bos.toByteArray());
1258	<	ObjectInputStream ois = new ObjectInputStream(bin);
1259	<	return (T) ois.readObject();
1256	>	return bos.toByteArray();
1257	>	} catch (Throwable t) {
1258	>	threadUnexpectedException(t);
1259	>	return new byte[0];
1260	>	}
1261	>	}
1262	>
1263	>	@SuppressWarnings("unchecked")
1264	>	<T> T serialClone(T o) {
1265	>	try {
1266	>	ObjectInputStream ois = new ObjectInputStream
1267	>	(new ByteArrayInputStream(serialBytes(o)));
1268	>	T clone = (T) ois.readObject();
1269	>	assertSame(o.getClass(), clone.getClass());
1270	>	return clone;
1271		} catch (Throwable t) {
1272		threadUnexpectedException(t);
1273		return null;

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