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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.70 by jsr166, Sun Nov 21 19:04:45 2010 UTC vs.
Revision 1.106 by jsr166, Mon Apr 1 20:06:26 2013 UTC

#	Line 1 | Line 1
1		/*
2		* Written by Doug Lea with assistance from members of JCP JSR-166
3		* Expert Group and released to the public domain, as explained at
4	<	* http://creativecommons.org/licenses/publicdomain
4	>	* http://creativecommons.org/publicdomain/zero/1.0/
5		* Other contributors include Andrew Wright, Jeffrey Hayes,
6		* Pat Fisher, Mike Judd.
7		*/
8
9		import junit.framework.*;
10	+	import java.io.ByteArrayInputStream;
11	+	import java.io.ByteArrayOutputStream;
12	+	import java.io.ObjectInputStream;
13	+	import java.io.ObjectOutputStream;
14	+	import java.lang.management.ManagementFactory;
15	+	import java.lang.management.ThreadInfo;
16	+	import java.lang.reflect.Method;
17	+	import java.util.ArrayList;
18	+	import java.util.Arrays;
19	+	import java.util.Date;
20	+	import java.util.Enumeration;
21	+	import java.util.List;
22	+	import java.util.NoSuchElementException;
23		import java.util.PropertyPermission;
24		import java.util.concurrent.*;
25	+	import java.util.concurrent.atomic.AtomicBoolean;
26		import java.util.concurrent.atomic.AtomicReference;
27		import static java.util.concurrent.TimeUnit.MILLISECONDS;
28		import static java.util.concurrent.TimeUnit.NANOSECONDS;
#	Line 61 | Line 75 | import java.security.SecurityPermission;
75		*
76		* </ol>
77		*
78	<	* <p> <b>Other notes</b>
78	>	* <p><b>Other notes</b>
79		* <ul>
80		*
81		* <li> Usually, there is one testcase method per JSR166 method
#	Line 134 | Line 148 | public class JSR166TestCase extends Test
148		}
149
150		/**
151	<	* Runs all JSR166 unit tests using junit.textui.TestRunner
151	>	* Runs all JSR166 unit tests using junit.textui.TestRunner.
152	>	* Optional command line arg provides the number of iterations to
153	>	* repeat running the tests.
154		*/
155		public static void main(String[] args) {
156		if (useSecurityManager) {
#	Line 166 | Line 182 | public class JSR166TestCase extends Test
182		return suite;
183		}
184
185	+	public static void addNamedTestClasses(TestSuite suite,
186	+	String... testClassNames) {
187	+	for (String testClassName : testClassNames) {
188	+	try {
189	+	Class<?> testClass = Class.forName(testClassName);
190	+	Method m = testClass.getDeclaredMethod("suite",
191	+	new Class<?>[0]);
192	+	suite.addTest(newTestSuite((Test)m.invoke(null)));
193	+	} catch (Exception e) {
194	+	throw new Error("Missing test class", e);
195	+	}
196	+	}
197	+	}
198	+
199	+	public static final double JAVA_CLASS_VERSION;
200	+	static {
201	+	try {
202	+	JAVA_CLASS_VERSION = java.security.AccessController.doPrivileged(
203	+	new java.security.PrivilegedAction<Double>() {
204	+	public Double run() {
205	+	return Double.valueOf(System.getProperty("java.class.version"));}});
206	+	} catch (Throwable t) {
207	+	throw new Error(t);
208	+	}
209	+	}
210	+
211	+	public static boolean atLeastJava6() { return JAVA_CLASS_VERSION >= 50.0; }
212	+	public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; }
213	+	public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; }
214	+
215		/**
216		* Collects all JSR166 unit tests as one suite.
217		*/
218		public static Test suite() {
219	<	return newTestSuite(
219	>	// Java7+ test classes
220	>	TestSuite suite = newTestSuite(
221		ForkJoinPoolTest.suite(),
222		ForkJoinTaskTest.suite(),
223		RecursiveActionTest.suite(),
#	Line 235 | Line 282 | public class JSR166TestCase extends Test
282		TreeSetTest.suite(),
283		TreeSubMapTest.suite(),
284		TreeSubSetTest.suite());
285	+
286	+	// Java8+ test classes
287	+	if (atLeastJava8()) {
288	+	String[] java8TestClassNames = {
289	+	"CompletableFutureTest",
290	+	"ConcurrentHashMap8Test",
291	+	"CountedCompleterTest",
292	+	"DoubleAccumulatorTest",
293	+	"DoubleAdderTest",
294	+	"ForkJoinPool8Test",
295	+	"LongAccumulatorTest",
296	+	"LongAdderTest",
297	+	"StampedLockTest",
298	+	};
299	+	addNamedTestClasses(suite, java8TestClassNames);
300	+	}
301	+
302	+	return suite;
303		}
304
305
#	Line 252 | Line 317 | public class JSR166TestCase extends Test
317		return 50;
318		}
319
255	–
320		/**
321		* Sets delays as multiples of SHORT_DELAY.
322		*/
#	Line 260 | Line 324 | public class JSR166TestCase extends Test
324		SHORT_DELAY_MS = getShortDelay();
325		SMALL_DELAY_MS  = SHORT_DELAY_MS * 5;
326		MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10;
327	<	LONG_DELAY_MS   = SHORT_DELAY_MS * 50;
327	>	LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
328	>	}
329	>
330	>	/**
331	>	* Returns a timeout in milliseconds to be used in tests that
332	>	* verify that operations block or time out.
333	>	*/
334	>	long timeoutMillis() {
335	>	return SHORT_DELAY_MS / 4;
336	>	}
337	>
338	>	/**
339	>	* Returns a new Date instance representing a time delayMillis
340	>	* milliseconds in the future.
341	>	*/
342	>	Date delayedDate(long delayMillis) {
343	>	return new Date(System.currentTimeMillis() + delayMillis);
344		}
345
346		/**
#	Line 284 | Line 364 | public class JSR166TestCase extends Test
364		}
365
366		/**
367	+	* Extra checks that get done for all test cases.
368	+	*
369		* Triggers test case failure if any thread assertions have failed,
370		* by rethrowing, in the test harness thread, any exception recorded
371		* earlier by threadRecordFailure.
372	+	*
373	+	* Triggers test case failure if interrupt status is set in the main thread.
374		*/
375		public void tearDown() throws Exception {
376		Throwable t = threadFailure.getAndSet(null);
#	Line 304 | Line 388 | public class JSR166TestCase extends Test
388		throw afe;
389		}
390		}
391	+
392	+	if (Thread.interrupted())
393	+	throw new AssertionFailedError("interrupt status set in main thread");
394	+
395	+	checkForkJoinPoolThreadLeaks();
396	+	}
397	+
398	+	/**
399	+	* Find missing try { ... } finally { joinPool(e); }
400	+	*/
401	+	void checkForkJoinPoolThreadLeaks() throws InterruptedException {
402	+	Thread[] survivors = new Thread[5];
403	+	int count = Thread.enumerate(survivors);
404	+	for (int i = 0; i < count; i++) {
405	+	Thread thread = survivors[i];
406	+	String name = thread.getName();
407	+	if (name.startsWith("ForkJoinPool-")) {
408	+	// give thread some time to terminate
409	+	thread.join(LONG_DELAY_MS);
410	+	if (!thread.isAlive()) continue;
411	+	thread.stop();
412	+	throw new AssertionFailedError
413	+	(String.format("Found leaked ForkJoinPool thread test=%s thread=%s%n",
414	+	toString(), name));
415	+	}
416	+	}
417		}
418
419		/**
#	Line 435 | Line 545 | public class JSR166TestCase extends Test
545		else {
546		AssertionFailedError afe =
547		new AssertionFailedError("unexpected exception: " + t);
548	<	t.initCause(t);
548	>	afe.initCause(t);
549		throw afe;
550		}
551		}
552
553		/**
554	+	* Delays, via Thread.sleep, for the given millisecond delay, but
555	+	* if the sleep is shorter than specified, may re-sleep or yield
556	+	* until time elapses.
557	+	*/
558	+	static void delay(long millis) throws InterruptedException {
559	+	long startTime = System.nanoTime();
560	+	long ns = millis * 1000 * 1000;
561	+	for (;;) {
562	+	if (millis > 0L)
563	+	Thread.sleep(millis);
564	+	else // too short to sleep
565	+	Thread.yield();
566	+	long d = ns - (System.nanoTime() - startTime);
567	+	if (d > 0L)
568	+	millis = d / (1000 * 1000);
569	+	else
570	+	break;
571	+	}
572	+	}
573	+
574	+	/**
575		* Waits out termination of a thread pool or fails doing so.
576		*/
577	<	public void joinPool(ExecutorService exec) {
577	>	void joinPool(ExecutorService exec) {
578		try {
579		exec.shutdown();
580		assertTrue("ExecutorService did not terminate in a timely manner",
581	<	exec.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
581	>	exec.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS));
582		} catch (SecurityException ok) {
583		// Allowed in case test doesn't have privs
584		} catch (InterruptedException ie) {
#	Line 455 | Line 586 | public class JSR166TestCase extends Test
586		}
587		}
588
589	+	/**
590	+	* A debugging tool to print all stack traces, as jstack does.
591	+	*/
592	+	static void printAllStackTraces() {
593	+	for (ThreadInfo info :
594	+	ManagementFactory.getThreadMXBean()
595	+	.dumpAllThreads(true, true))
596	+	System.err.print(info);
597	+	}
598	+
599	+	/**
600	+	* Checks that thread does not terminate within the default
601	+	* millisecond delay of {@code timeoutMillis()}.
602	+	*/
603	+	void assertThreadStaysAlive(Thread thread) {
604	+	assertThreadStaysAlive(thread, timeoutMillis());
605	+	}
606	+
607	+	/**
608	+	* Checks that thread does not terminate within the given millisecond delay.
609	+	*/
610	+	void assertThreadStaysAlive(Thread thread, long millis) {
611	+	try {
612	+	// No need to optimize the failing case via Thread.join.
613	+	delay(millis);
614	+	assertTrue(thread.isAlive());
615	+	} catch (InterruptedException ie) {
616	+	fail("Unexpected InterruptedException");
617	+	}
618	+	}
619	+
620	+	/**
621	+	* Checks that the threads do not terminate within the default
622	+	* millisecond delay of {@code timeoutMillis()}.
623	+	*/
624	+	void assertThreadsStayAlive(Thread... threads) {
625	+	assertThreadsStayAlive(timeoutMillis(), threads);
626	+	}
627	+
628	+	/**
629	+	* Checks that the threads do not terminate within the given millisecond delay.
630	+	*/
631	+	void assertThreadsStayAlive(long millis, Thread... threads) {
632	+	try {
633	+	// No need to optimize the failing case via Thread.join.
634	+	delay(millis);
635	+	for (Thread thread : threads)
636	+	assertTrue(thread.isAlive());
637	+	} catch (InterruptedException ie) {
638	+	fail("Unexpected InterruptedException");
639	+	}
640	+	}
641	+
642	+	/**
643	+	* Checks that future.get times out, with the default timeout of
644	+	* {@code timeoutMillis()}.
645	+	*/
646	+	void assertFutureTimesOut(Future future) {
647	+	assertFutureTimesOut(future, timeoutMillis());
648	+	}
649	+
650	+	/**
651	+	* Checks that future.get times out, with the given millisecond timeout.
652	+	*/
653	+	void assertFutureTimesOut(Future future, long timeoutMillis) {
654	+	long startTime = System.nanoTime();
655	+	try {
656	+	future.get(timeoutMillis, MILLISECONDS);
657	+	shouldThrow();
658	+	} catch (TimeoutException success) {
659	+	} catch (Exception e) {
660	+	threadUnexpectedException(e);
661	+	} finally { future.cancel(true); }
662	+	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
663	+	}
664
665		/**
666		* Fails with message "should throw exception".
#	Line 507 | Line 713 | public class JSR166TestCase extends Test
713		SecurityManager sm = System.getSecurityManager();
714		if (sm == null) {
715		r.run();
716	+	}
717	+	runWithSecurityManagerWithPermissions(r, permissions);
718	+	}
719	+
720	+	/**
721	+	* Runs Runnable r with a security policy that permits precisely
722	+	* the specified permissions.  If there is no current security
723	+	* manager, a temporary one is set for the duration of the
724	+	* Runnable.  We require that any security manager permit
725	+	* getPolicy/setPolicy.
726	+	*/
727	+	public void runWithSecurityManagerWithPermissions(Runnable r,
728	+	Permission... permissions) {
729	+	SecurityManager sm = System.getSecurityManager();
730	+	if (sm == null) {
731		Policy savedPolicy = Policy.getPolicy();
732		try {
733		Policy.setPolicy(permissivePolicy());
734		System.setSecurityManager(new SecurityManager());
735	<	runWithPermissions(r, permissions);
735	>	runWithSecurityManagerWithPermissions(r, permissions);
736		} finally {
737		System.setSecurityManager(null);
738		Policy.setPolicy(savedPolicy);
#	Line 559 | Line 780 | public class JSR166TestCase extends Test
780		return perms.implies(p);
781		}
782		public void refresh() {}
783	+	public String toString() {
784	+	List<Permission> ps = new ArrayList<Permission>();
785	+	for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
786	+	ps.add(e.nextElement());
787	+	return "AdjustablePolicy with permissions " + ps;
788	+	}
789		}
790
791		/**
#	Line 586 | Line 813 | public class JSR166TestCase extends Test
813		*/
814		void sleep(long millis) {
815		try {
816	<	Thread.sleep(millis);
816	>	delay(millis);
817		} catch (InterruptedException ie) {
818		AssertionFailedError afe =
819		new AssertionFailedError("Unexpected InterruptedException");
#	Line 596 | Line 823 | public class JSR166TestCase extends Test
823		}
824
825		/**
826	<	* Sleeps until the timeout has elapsed, or interrupted.
600	<	* Does <em>NOT</em> throw InterruptedException.
601	<	*/
602	<	void sleepTillInterrupted(long timeoutMillis) {
603	<	try {
604	<	Thread.sleep(timeoutMillis);
605	<	} catch (InterruptedException wakeup) {}
606	<	}
607	<
608	<	/**
609	<	* Waits up to the specified number of milliseconds for the given
826	>	* Spin-waits up to the specified number of milliseconds for the given
827		* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
828		*/
829		void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
830	<	long timeoutNanos = timeoutMillis * 1000L * 1000L;
614	<	long t0 = System.nanoTime();
830	>	long startTime = System.nanoTime();
831		for (;;) {
832		Thread.State s = thread.getState();
833		if (s == Thread.State.BLOCKED ||
#	Line 620 | Line 836 | public class JSR166TestCase extends Test
836		return;
837		else if (s == Thread.State.TERMINATED)
838		fail("Unexpected thread termination");
839	<	else if (System.nanoTime() - t0 > timeoutNanos) {
839	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
840		threadAssertTrue(thread.isAlive());
841		return;
842		}
#	Line 629 | Line 845 | public class JSR166TestCase extends Test
845		}
846
847		/**
848	+	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
849	+	* state: BLOCKED, WAITING, or TIMED_WAITING.
850	+	*/
851	+	void waitForThreadToEnterWaitState(Thread thread) {
852	+	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
853	+	}
854	+
855	+	/**
856		* Returns the number of milliseconds since time given by
857		* startNanoTime, which must have been previously returned from a
858		* call to {@link System.nanoTime()}.
#	Line 658 | Line 882 | public class JSR166TestCase extends Test
882		} catch (InterruptedException ie) {
883		threadUnexpectedException(ie);
884		} finally {
885	<	if (t.isAlive()) {
885	>	if (t.getState() != Thread.State.TERMINATED) {
886		t.interrupt();
887		fail("Test timed out");
888		}
889		}
890		}
891
892	+	/**
893	+	* Waits for LONG_DELAY_MS milliseconds for the thread to
894	+	* terminate (using {@link Thread#join(long)}), else interrupts
895	+	* the thread (in the hope that it may terminate later) and fails.
896	+	*/
897	+	void awaitTermination(Thread t) {
898	+	awaitTermination(t, LONG_DELAY_MS);
899	+	}
900	+
901		// Some convenient Runnable classes
902
903		public abstract class CheckedRunnable implements Runnable {
#	Line 727 | Line 960 | public class JSR166TestCase extends Test
960		realRun();
961		threadShouldThrow("InterruptedException");
962		} catch (InterruptedException success) {
963	+	threadAssertFalse(Thread.interrupted());
964		} catch (Throwable t) {
965		threadUnexpectedException(t);
966		}
#	Line 756 | Line 990 | public class JSR166TestCase extends Test
990		threadShouldThrow("InterruptedException");
991		return result;
992		} catch (InterruptedException success) {
993	+	threadAssertFalse(Thread.interrupted());
994		} catch (Throwable t) {
995		threadUnexpectedException(t);
996		}
#	Line 787 | Line 1022 | public class JSR166TestCase extends Test
1022		}};
1023		}
1024
1025	+	public Runnable awaiter(final CountDownLatch latch) {
1026	+	return new CheckedRunnable() {
1027	+	public void realRun() throws InterruptedException {
1028	+	await(latch);
1029	+	}};
1030	+	}
1031	+
1032	+	public void await(CountDownLatch latch) {
1033	+	try {
1034	+	assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS));
1035	+	} catch (Throwable t) {
1036	+	threadUnexpectedException(t);
1037	+	}
1038	+	}
1039	+
1040	+	public void await(Semaphore semaphore) {
1041	+	try {
1042	+	assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS));
1043	+	} catch (Throwable t) {
1044	+	threadUnexpectedException(t);
1045	+	}
1046	+	}
1047	+
1048	+	//     /**
1049	+	//      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
1050	+	//      */
1051	+	//     public void await(AtomicBoolean flag) {
1052	+	//         await(flag, LONG_DELAY_MS);
1053	+	//     }
1054	+
1055	+	//     /**
1056	+	//      * Spin-waits up to the specified timeout until flag becomes true.
1057	+	//      */
1058	+	//     public void await(AtomicBoolean flag, long timeoutMillis) {
1059	+	//         long startTime = System.nanoTime();
1060	+	//         while (!flag.get()) {
1061	+	//             if (millisElapsedSince(startTime) > timeoutMillis)
1062	+	//                 throw new AssertionFailedError("timed out");
1063	+	//             Thread.yield();
1064	+	//         }
1065	+	//     }
1066	+
1067		public static class NPETask implements Callable<String> {
1068		public String call() { throw new NullPointerException(); }
1069		}
#	Line 797 | Line 1074 | public class JSR166TestCase extends Test
1074
1075		public class ShortRunnable extends CheckedRunnable {
1076		protected void realRun() throws Throwable {
1077	<	Thread.sleep(SHORT_DELAY_MS);
1077	>	delay(SHORT_DELAY_MS);
1078		}
1079		}
1080
1081		public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1082		protected void realRun() throws InterruptedException {
1083	<	Thread.sleep(SHORT_DELAY_MS);
1083	>	delay(SHORT_DELAY_MS);
1084		}
1085		}
1086
1087		public class SmallRunnable extends CheckedRunnable {
1088		protected void realRun() throws Throwable {
1089	<	Thread.sleep(SMALL_DELAY_MS);
1089	>	delay(SMALL_DELAY_MS);
1090		}
1091		}
1092
1093		public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1094		protected void realRun() {
1095		try {
1096	<	Thread.sleep(SMALL_DELAY_MS);
1096	>	delay(SMALL_DELAY_MS);
1097		} catch (InterruptedException ok) {}
1098		}
1099		}
1100
1101		public class SmallCallable extends CheckedCallable {
1102		protected Object realCall() throws InterruptedException {
1103	<	Thread.sleep(SMALL_DELAY_MS);
1103	>	delay(SMALL_DELAY_MS);
1104		return Boolean.TRUE;
1105		}
1106		}
1107
1108		public class MediumRunnable extends CheckedRunnable {
1109		protected void realRun() throws Throwable {
1110	<	Thread.sleep(MEDIUM_DELAY_MS);
1110	>	delay(MEDIUM_DELAY_MS);
1111		}
1112		}
1113
1114		public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1115		protected void realRun() throws InterruptedException {
1116	<	Thread.sleep(MEDIUM_DELAY_MS);
1116	>	delay(MEDIUM_DELAY_MS);
1117		}
1118		}
1119
#	Line 844 | Line 1121 | public class JSR166TestCase extends Test
1121		return new CheckedRunnable() {
1122		protected void realRun() {
1123		try {
1124	<	Thread.sleep(timeoutMillis);
1124	>	delay(timeoutMillis);
1125		} catch (InterruptedException ok) {}
1126		}};
1127		}
#	Line 852 | Line 1129 | public class JSR166TestCase extends Test
1129		public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1130		protected void realRun() {
1131		try {
1132	<	Thread.sleep(MEDIUM_DELAY_MS);
1132	>	delay(MEDIUM_DELAY_MS);
1133		} catch (InterruptedException ok) {}
1134		}
1135		}
#	Line 860 | Line 1137 | public class JSR166TestCase extends Test
1137		public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1138		protected void realRun() {
1139		try {
1140	<	Thread.sleep(LONG_DELAY_MS);
1140	>	delay(LONG_DELAY_MS);
1141		} catch (InterruptedException ok) {}
1142		}
1143		}
#	Line 884 | Line 1161 | public class JSR166TestCase extends Test
1161		public boolean isDone() { return done; }
1162		public void run() {
1163		try {
1164	<	Thread.sleep(timeoutMillis);
1164	>	delay(timeoutMillis);
1165		done = true;
1166		} catch (InterruptedException ok) {}
1167		}
#	Line 895 | Line 1172 | public class JSR166TestCase extends Test
1172		public volatile boolean done = false;
1173		public void run() {
1174		try {
1175	<	Thread.sleep(SHORT_DELAY_MS);
1175	>	delay(SHORT_DELAY_MS);
1176		done = true;
1177		} catch (InterruptedException ok) {}
1178		}
#	Line 905 | Line 1182 | public class JSR166TestCase extends Test
1182		public volatile boolean done = false;
1183		public void run() {
1184		try {
1185	<	Thread.sleep(SMALL_DELAY_MS);
1185	>	delay(SMALL_DELAY_MS);
1186		done = true;
1187		} catch (InterruptedException ok) {}
1188		}
#	Line 915 | Line 1192 | public class JSR166TestCase extends Test
1192		public volatile boolean done = false;
1193		public void run() {
1194		try {
1195	<	Thread.sleep(MEDIUM_DELAY_MS);
1195	>	delay(MEDIUM_DELAY_MS);
1196		done = true;
1197		} catch (InterruptedException ok) {}
1198		}
#	Line 925 | Line 1202 | public class JSR166TestCase extends Test
1202		public volatile boolean done = false;
1203		public void run() {
1204		try {
1205	<	Thread.sleep(LONG_DELAY_MS);
1205	>	delay(LONG_DELAY_MS);
1206		done = true;
1207		} catch (InterruptedException ok) {}
1208		}
#	Line 942 | Line 1219 | public class JSR166TestCase extends Test
1219		public volatile boolean done = false;
1220		public Object call() {
1221		try {
1222	<	Thread.sleep(SMALL_DELAY_MS);
1222	>	delay(SMALL_DELAY_MS);
1223		done = true;
1224		} catch (InterruptedException ok) {}
1225		return Boolean.TRUE;
#	Line 989 | Line 1266 | public class JSR166TestCase extends Test
1266		}
1267
1268		/**
1269	<	* A CyclicBarrier that fails with AssertionFailedErrors instead
1270	<	* of throwing checked exceptions.
1269	>	* A CyclicBarrier that uses timed await and fails with
1270	>	* AssertionFailedErrors instead of throwing checked exceptions.
1271		*/
1272		public class CheckedBarrier extends CyclicBarrier {
1273		public CheckedBarrier(int parties) { super(parties); }
1274
1275		public int await() {
1276		try {
1277	<	return super.await();
1277	>	return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1278	>	} catch (TimeoutException e) {
1279	>	throw new AssertionFailedError("timed out");
1280		} catch (Exception e) {
1281		AssertionFailedError afe =
1282		new AssertionFailedError("Unexpected exception: " + e);
#	Line 1007 | Line 1286 | public class JSR166TestCase extends Test
1286		}
1287		}
1288
1289	+	void checkEmpty(BlockingQueue q) {
1290	+	try {
1291	+	assertTrue(q.isEmpty());
1292	+	assertEquals(0, q.size());
1293	+	assertNull(q.peek());
1294	+	assertNull(q.poll());
1295	+	assertNull(q.poll(0, MILLISECONDS));
1296	+	assertEquals(q.toString(), "[]");
1297	+	assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1298	+	assertFalse(q.iterator().hasNext());
1299	+	try {
1300	+	q.element();
1301	+	shouldThrow();
1302	+	} catch (NoSuchElementException success) {}
1303	+	try {
1304	+	q.iterator().next();
1305	+	shouldThrow();
1306	+	} catch (NoSuchElementException success) {}
1307	+	try {
1308	+	q.remove();
1309	+	shouldThrow();
1310	+	} catch (NoSuchElementException success) {}
1311	+	} catch (InterruptedException ie) {
1312	+	threadUnexpectedException(ie);
1313	+	}
1314	+	}
1315	+
1316	+	void assertSerialEquals(Object x, Object y) {
1317	+	assertTrue(Arrays.equals(serialBytes(x), serialBytes(y)));
1318	+	}
1319	+
1320	+	void assertNotSerialEquals(Object x, Object y) {
1321	+	assertFalse(Arrays.equals(serialBytes(x), serialBytes(y)));
1322	+	}
1323	+
1324	+	byte[] serialBytes(Object o) {
1325	+	try {
1326	+	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1327	+	ObjectOutputStream oos = new ObjectOutputStream(bos);
1328	+	oos.writeObject(o);
1329	+	oos.flush();
1330	+	oos.close();
1331	+	return bos.toByteArray();
1332	+	} catch (Throwable t) {
1333	+	threadUnexpectedException(t);
1334	+	return new byte[0];
1335	+	}
1336	+	}
1337	+
1338	+	@SuppressWarnings("unchecked")
1339	+	<T> T serialClone(T o) {
1340	+	try {
1341	+	ObjectInputStream ois = new ObjectInputStream
1342	+	(new ByteArrayInputStream(serialBytes(o)));
1343	+	T clone = (T) ois.readObject();
1344	+	assertSame(o.getClass(), clone.getClass());
1345	+	return clone;
1346	+	} catch (Throwable t) {
1347	+	threadUnexpectedException(t);
1348	+	return null;
1349	+	}
1350	+	}
1351	+
1352	+	public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1353	+	Runnable... throwingActions) {
1354	+	for (Runnable throwingAction : throwingActions) {
1355	+	boolean threw = false;
1356	+	try { throwingAction.run(); }
1357	+	catch (Throwable t) {
1358	+	threw = true;
1359	+	if (!expectedExceptionClass.isInstance(t)) {
1360	+	AssertionFailedError afe =
1361	+	new AssertionFailedError
1362	+	("Expected " + expectedExceptionClass.getName() +
1363	+	", got " + t.getClass().getName());
1364	+	afe.initCause(t);
1365	+	threadUnexpectedException(afe);
1366	+	}
1367	+	}
1368	+	if (!threw)
1369	+	shouldThrow(expectedExceptionClass.getName());
1370	+	}
1371	+	}
1372		}

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