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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.57 by jsr166, Mon Oct 4 05:45:19 2010 UTC vs.
Revision 1.113 by dl, Sun Sep 8 23:00:36 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;
29		import java.security.CodeSource;
30		import java.security.Permission;
31		import java.security.PermissionCollection;
#	Line 60 | 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 96 | Line 111 | public class JSR166TestCase extends Test
111		private static final boolean useSecurityManager =
112		Boolean.getBoolean("jsr166.useSecurityManager");
113
114	+	protected static final boolean expensiveTests =
115	+	Boolean.getBoolean("jsr166.expensiveTests");
116	+
117	+	/**
118	+	* If true, report on stdout all "slow" tests, that is, ones that
119	+	* take more than profileThreshold milliseconds to execute.
120	+	*/
121	+	private static final boolean profileTests =
122	+	Boolean.getBoolean("jsr166.profileTests");
123	+
124	+	/**
125	+	* The number of milliseconds that tests are permitted for
126	+	* execution without being reported, when profileTests is set.
127	+	*/
128	+	private static final long profileThreshold =
129	+	Long.getLong("jsr166.profileThreshold", 100);
130	+
131	+	/**
132	+	* The number of repetitions per test (for tickling rare bugs).
133	+	*/
134	+	private static final int runsPerTest =
135	+	Integer.getInteger("jsr166.runsPerTest", 1);
136	+
137	+	protected void runTest() throws Throwable {
138	+	for (int i = 0; i < runsPerTest; i++) {
139	+	if (profileTests)
140	+	runTestProfiled();
141	+	else
142	+	super.runTest();
143	+	}
144	+	}
145	+
146	+	protected void runTestProfiled() throws Throwable {
147	+	long t0 = System.nanoTime();
148	+	try {
149	+	super.runTest();
150	+	} finally {
151	+	long elapsedMillis =
152	+	(System.nanoTime() - t0) / (1000L * 1000L);
153	+	if (elapsedMillis >= profileThreshold)
154	+	System.out.printf("%n%s: %d%n", toString(), elapsedMillis);
155	+	}
156	+	}
157	+
158		/**
159	<	* Runs all JSR166 unit tests using junit.textui.TestRunner
159	>	* Runs all JSR166 unit tests using junit.textui.TestRunner.
160	>	* Optional command line arg provides the number of iterations to
161	>	* repeat running the tests.
162		*/
163		public static void main(String[] args) {
164		if (useSecurityManager) {
#	Line 116 | Line 177 | public class JSR166TestCase extends Test
177		System.exit(0);
178		}
179
180	+	public static TestSuite newTestSuite(Object... suiteOrClasses) {
181	+	TestSuite suite = new TestSuite();
182	+	for (Object suiteOrClass : suiteOrClasses) {
183	+	if (suiteOrClass instanceof TestSuite)
184	+	suite.addTest((TestSuite) suiteOrClass);
185	+	else if (suiteOrClass instanceof Class)
186	+	suite.addTest(new TestSuite((Class<?>) suiteOrClass));
187	+	else
188	+	throw new ClassCastException("not a test suite or class");
189	+	}
190	+	return suite;
191	+	}
192	+
193	+	public static void addNamedTestClasses(TestSuite suite,
194	+	String... testClassNames) {
195	+	for (String testClassName : testClassNames) {
196	+	try {
197	+	Class<?> testClass = Class.forName(testClassName);
198	+	Method m = testClass.getDeclaredMethod("suite",
199	+	new Class<?>[0]);
200	+	suite.addTest(newTestSuite((Test)m.invoke(null)));
201	+	} catch (Exception e) {
202	+	throw new Error("Missing test class", e);
203	+	}
204	+	}
205	+	}
206	+
207	+	public static final double JAVA_CLASS_VERSION;
208	+	static {
209	+	try {
210	+	JAVA_CLASS_VERSION = java.security.AccessController.doPrivileged(
211	+	new java.security.PrivilegedAction<Double>() {
212	+	public Double run() {
213	+	return Double.valueOf(System.getProperty("java.class.version"));}});
214	+	} catch (Throwable t) {
215	+	throw new Error(t);
216	+	}
217	+	}
218	+
219	+	public static boolean atLeastJava6() { return JAVA_CLASS_VERSION >= 50.0; }
220	+	public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; }
221	+	public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; }
222	+
223		/**
224	<	* Collects all JSR166 unit tests as one suite
224	>	* Collects all JSR166 unit tests as one suite.
225		*/
226		public static Test suite() {
227	<	TestSuite suite = new TestSuite("JSR166 Unit Tests");
228	<
229	<	suite.addTest(ForkJoinPoolTest.suite());
230	<	suite.addTest(ForkJoinTaskTest.suite());
231	<	suite.addTest(RecursiveActionTest.suite());
232	<	suite.addTest(RecursiveTaskTest.suite());
233	<	suite.addTest(LinkedTransferQueueTest.suite());
234	<	suite.addTest(PhaserTest.suite());
235	<	suite.addTest(ThreadLocalRandomTest.suite());
236	<	suite.addTest(AbstractExecutorServiceTest.suite());
237	<	suite.addTest(AbstractQueueTest.suite());
238	<	suite.addTest(AbstractQueuedSynchronizerTest.suite());
239	<	suite.addTest(AbstractQueuedLongSynchronizerTest.suite());
240	<	suite.addTest(ArrayBlockingQueueTest.suite());
241	<	suite.addTest(ArrayDequeTest.suite());
242	<	suite.addTest(AtomicBooleanTest.suite());
243	<	suite.addTest(AtomicIntegerArrayTest.suite());
244	<	suite.addTest(AtomicIntegerFieldUpdaterTest.suite());
245	<	suite.addTest(AtomicIntegerTest.suite());
246	<	suite.addTest(AtomicLongArrayTest.suite());
247	<	suite.addTest(AtomicLongFieldUpdaterTest.suite());
248	<	suite.addTest(AtomicLongTest.suite());
249	<	suite.addTest(AtomicMarkableReferenceTest.suite());
250	<	suite.addTest(AtomicReferenceArrayTest.suite());
251	<	suite.addTest(AtomicReferenceFieldUpdaterTest.suite());
252	<	suite.addTest(AtomicReferenceTest.suite());
253	<	suite.addTest(AtomicStampedReferenceTest.suite());
254	<	suite.addTest(ConcurrentHashMapTest.suite());
255	<	suite.addTest(ConcurrentLinkedDequeTest.suite());
256	<	suite.addTest(ConcurrentLinkedQueueTest.suite());
257	<	suite.addTest(ConcurrentSkipListMapTest.suite());
258	<	suite.addTest(ConcurrentSkipListSubMapTest.suite());
259	<	suite.addTest(ConcurrentSkipListSetTest.suite());
260	<	suite.addTest(ConcurrentSkipListSubSetTest.suite());
261	<	suite.addTest(CopyOnWriteArrayListTest.suite());
262	<	suite.addTest(CopyOnWriteArraySetTest.suite());
263	<	suite.addTest(CountDownLatchTest.suite());
264	<	suite.addTest(CyclicBarrierTest.suite());
265	<	suite.addTest(DelayQueueTest.suite());
266	<	suite.addTest(EntryTest.suite());
267	<	suite.addTest(ExchangerTest.suite());
268	<	suite.addTest(ExecutorsTest.suite());
269	<	suite.addTest(ExecutorCompletionServiceTest.suite());
270	<	suite.addTest(FutureTaskTest.suite());
271	<	suite.addTest(LinkedBlockingDequeTest.suite());
272	<	suite.addTest(LinkedBlockingQueueTest.suite());
273	<	suite.addTest(LinkedListTest.suite());
274	<	suite.addTest(LockSupportTest.suite());
275	<	suite.addTest(PriorityBlockingQueueTest.suite());
276	<	suite.addTest(PriorityQueueTest.suite());
277	<	suite.addTest(ReentrantLockTest.suite());
278	<	suite.addTest(ReentrantReadWriteLockTest.suite());
279	<	suite.addTest(ScheduledExecutorTest.suite());
280	<	suite.addTest(ScheduledExecutorSubclassTest.suite());
281	<	suite.addTest(SemaphoreTest.suite());
282	<	suite.addTest(SynchronousQueueTest.suite());
283	<	suite.addTest(SystemTest.suite());
284	<	suite.addTest(ThreadLocalTest.suite());
285	<	suite.addTest(ThreadPoolExecutorTest.suite());
286	<	suite.addTest(ThreadPoolExecutorSubclassTest.suite());
287	<	suite.addTest(ThreadTest.suite());
288	<	suite.addTest(TimeUnitTest.suite());
289	<	suite.addTest(TreeMapTest.suite());
290	<	suite.addTest(TreeSetTest.suite());
291	<	suite.addTest(TreeSubMapTest.suite());
292	<	suite.addTest(TreeSubSetTest.suite());
227	>	// Java7+ test classes
228	>	TestSuite suite = newTestSuite(
229	>	ForkJoinPoolTest.suite(),
230	>	ForkJoinTaskTest.suite(),
231	>	RecursiveActionTest.suite(),
232	>	RecursiveTaskTest.suite(),
233	>	LinkedTransferQueueTest.suite(),
234	>	PhaserTest.suite(),
235	>	ThreadLocalRandomTest.suite(),
236	>	AbstractExecutorServiceTest.suite(),
237	>	AbstractQueueTest.suite(),
238	>	AbstractQueuedSynchronizerTest.suite(),
239	>	AbstractQueuedLongSynchronizerTest.suite(),
240	>	ArrayBlockingQueueTest.suite(),
241	>	ArrayDequeTest.suite(),
242	>	AtomicBooleanTest.suite(),
243	>	AtomicIntegerArrayTest.suite(),
244	>	AtomicIntegerFieldUpdaterTest.suite(),
245	>	AtomicIntegerTest.suite(),
246	>	AtomicLongArrayTest.suite(),
247	>	AtomicLongFieldUpdaterTest.suite(),
248	>	AtomicLongTest.suite(),
249	>	AtomicMarkableReferenceTest.suite(),
250	>	AtomicReferenceArrayTest.suite(),
251	>	AtomicReferenceFieldUpdaterTest.suite(),
252	>	AtomicReferenceTest.suite(),
253	>	AtomicStampedReferenceTest.suite(),
254	>	ConcurrentHashMapTest.suite(),
255	>	ConcurrentLinkedDequeTest.suite(),
256	>	ConcurrentLinkedQueueTest.suite(),
257	>	ConcurrentSkipListMapTest.suite(),
258	>	ConcurrentSkipListSubMapTest.suite(),
259	>	ConcurrentSkipListSetTest.suite(),
260	>	ConcurrentSkipListSubSetTest.suite(),
261	>	CopyOnWriteArrayListTest.suite(),
262	>	CopyOnWriteArraySetTest.suite(),
263	>	CountDownLatchTest.suite(),
264	>	CyclicBarrierTest.suite(),
265	>	DelayQueueTest.suite(),
266	>	EntryTest.suite(),
267	>	ExchangerTest.suite(),
268	>	ExecutorsTest.suite(),
269	>	ExecutorCompletionServiceTest.suite(),
270	>	FutureTaskTest.suite(),
271	>	LinkedBlockingDequeTest.suite(),
272	>	LinkedBlockingQueueTest.suite(),
273	>	LinkedListTest.suite(),
274	>	LockSupportTest.suite(),
275	>	PriorityBlockingQueueTest.suite(),
276	>	PriorityQueueTest.suite(),
277	>	ReentrantLockTest.suite(),
278	>	ReentrantReadWriteLockTest.suite(),
279	>	ScheduledExecutorTest.suite(),
280	>	ScheduledExecutorSubclassTest.suite(),
281	>	SemaphoreTest.suite(),
282	>	SynchronousQueueTest.suite(),
283	>	SystemTest.suite(),
284	>	ThreadLocalTest.suite(),
285	>	ThreadPoolExecutorTest.suite(),
286	>	ThreadPoolExecutorSubclassTest.suite(),
287	>	ThreadTest.suite(),
288	>	TimeUnitTest.suite(),
289	>	TreeMapTest.suite(),
290	>	TreeSetTest.suite(),
291	>	TreeSubMapTest.suite(),
292	>	TreeSubSetTest.suite());
293	>
294	>	// Java8+ test classes
295	>	if (atLeastJava8()) {
296	>	String[] java8TestClassNames = {
297	>	"Atomic8Test",
298	>	"CompletableFutureTest",
299	>	"ConcurrentHashMap8Test",
300	>	"CountedCompleterTest",
301	>	"DoubleAccumulatorTest",
302	>	"DoubleAdderTest",
303	>	"ForkJoinPool8Test",
304	>	"ForkJoinTask8Test",
305	>	"LongAccumulatorTest",
306	>	"LongAdderTest",
307	>	"SplittableRandomTest",
308	>	"StampedLockTest",
309	>	"ThreadLocalRandom8Test",
310	>	};
311	>	addNamedTestClasses(suite, java8TestClassNames);
312	>	}
313
314		return suite;
315		}
316
317	+	// Delays for timing-dependent tests, in milliseconds.
318
319		public static long SHORT_DELAY_MS;
320		public static long SMALL_DELAY_MS;
321		public static long MEDIUM_DELAY_MS;
322		public static long LONG_DELAY_MS;
323
199	–
324		/**
325		* Returns the shortest timed delay. This could
326		* be reimplemented to use for example a Property.
#	Line 205 | Line 329 | public class JSR166TestCase extends Test
329		return 50;
330		}
331
208	–
332		/**
333		* Sets delays as multiples of SHORT_DELAY.
334		*/
#	Line 213 | Line 336 | public class JSR166TestCase extends Test
336		SHORT_DELAY_MS = getShortDelay();
337		SMALL_DELAY_MS  = SHORT_DELAY_MS * 5;
338		MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10;
339	<	LONG_DELAY_MS   = SHORT_DELAY_MS * 50;
339	>	LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
340	>	}
341	>
342	>	/**
343	>	* Returns a timeout in milliseconds to be used in tests that
344	>	* verify that operations block or time out.
345	>	*/
346	>	long timeoutMillis() {
347	>	return SHORT_DELAY_MS / 4;
348	>	}
349	>
350	>	/**
351	>	* Returns a new Date instance representing a time delayMillis
352	>	* milliseconds in the future.
353	>	*/
354	>	Date delayedDate(long delayMillis) {
355	>	return new Date(System.currentTimeMillis() + delayMillis);
356		}
357
358		/**
#	Line 237 | Line 376 | public class JSR166TestCase extends Test
376		}
377
378		/**
379	+	* Extra checks that get done for all test cases.
380	+	*
381		* Triggers test case failure if any thread assertions have failed,
382		* by rethrowing, in the test harness thread, any exception recorded
383		* earlier by threadRecordFailure.
384	+	*
385	+	* Triggers test case failure if interrupt status is set in the main thread.
386		*/
387		public void tearDown() throws Exception {
388	<	Throwable t = threadFailure.get();
388	>	Throwable t = threadFailure.getAndSet(null);
389		if (t != null) {
390		if (t instanceof Error)
391		throw (Error) t;
#	Line 257 | Line 400 | public class JSR166TestCase extends Test
400		throw afe;
401		}
402		}
403	+
404	+	if (Thread.interrupted())
405	+	throw new AssertionFailedError("interrupt status set in main thread");
406	+
407	+	checkForkJoinPoolThreadLeaks();
408	+	}
409	+
410	+	/**
411	+	* Find missing try { ... } finally { joinPool(e); }
412	+	*/
413	+	void checkForkJoinPoolThreadLeaks() throws InterruptedException {
414	+	Thread[] survivors = new Thread[5];
415	+	int count = Thread.enumerate(survivors);
416	+	for (int i = 0; i < count; i++) {
417	+	Thread thread = survivors[i];
418	+	String name = thread.getName();
419	+	if (name.startsWith("ForkJoinPool-")) {
420	+	// give thread some time to terminate
421	+	thread.join(LONG_DELAY_MS);
422	+	if (!thread.isAlive()) continue;
423	+	thread.stop();
424	+	throw new AssertionFailedError
425	+	(String.format("Found leaked ForkJoinPool thread test=%s thread=%s%n",
426	+	toString(), name));
427	+	}
428	+	}
429		}
430
431		/**
#	Line 388 | Line 557 | public class JSR166TestCase extends Test
557		else {
558		AssertionFailedError afe =
559		new AssertionFailedError("unexpected exception: " + t);
560	<	t.initCause(t);
560	>	afe.initCause(t);
561		throw afe;
562		}
563		}
564
565		/**
566	+	* Delays, via Thread.sleep, for the given millisecond delay, but
567	+	* if the sleep is shorter than specified, may re-sleep or yield
568	+	* until time elapses.
569	+	*/
570	+	static void delay(long millis) throws InterruptedException {
571	+	long startTime = System.nanoTime();
572	+	long ns = millis * 1000 * 1000;
573	+	for (;;) {
574	+	if (millis > 0L)
575	+	Thread.sleep(millis);
576	+	else // too short to sleep
577	+	Thread.yield();
578	+	long d = ns - (System.nanoTime() - startTime);
579	+	if (d > 0L)
580	+	millis = d / (1000 * 1000);
581	+	else
582	+	break;
583	+	}
584	+	}
585	+
586	+	/**
587		* Waits out termination of a thread pool or fails doing so.
588		*/
589	<	public void joinPool(ExecutorService exec) {
589	>	void joinPool(ExecutorService exec) {
590		try {
591		exec.shutdown();
592		assertTrue("ExecutorService did not terminate in a timely manner",
593	<	exec.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
593	>	exec.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS));
594		} catch (SecurityException ok) {
595		// Allowed in case test doesn't have privs
596		} catch (InterruptedException ie) {
#	Line 408 | Line 598 | public class JSR166TestCase extends Test
598		}
599		}
600
601	+	/**
602	+	* A debugging tool to print all stack traces, as jstack does.
603	+	*/
604	+	static void printAllStackTraces() {
605	+	for (ThreadInfo info :
606	+	ManagementFactory.getThreadMXBean()
607	+	.dumpAllThreads(true, true))
608	+	System.err.print(info);
609	+	}
610	+
611	+	/**
612	+	* Checks that thread does not terminate within the default
613	+	* millisecond delay of {@code timeoutMillis()}.
614	+	*/
615	+	void assertThreadStaysAlive(Thread thread) {
616	+	assertThreadStaysAlive(thread, timeoutMillis());
617	+	}
618	+
619	+	/**
620	+	* Checks that thread does not terminate within the given millisecond delay.
621	+	*/
622	+	void assertThreadStaysAlive(Thread thread, long millis) {
623	+	try {
624	+	// No need to optimize the failing case via Thread.join.
625	+	delay(millis);
626	+	assertTrue(thread.isAlive());
627	+	} catch (InterruptedException ie) {
628	+	fail("Unexpected InterruptedException");
629	+	}
630	+	}
631	+
632	+	/**
633	+	* Checks that the threads do not terminate within the default
634	+	* millisecond delay of {@code timeoutMillis()}.
635	+	*/
636	+	void assertThreadsStayAlive(Thread... threads) {
637	+	assertThreadsStayAlive(timeoutMillis(), threads);
638	+	}
639	+
640	+	/**
641	+	* Checks that the threads do not terminate within the given millisecond delay.
642	+	*/
643	+	void assertThreadsStayAlive(long millis, Thread... threads) {
644	+	try {
645	+	// No need to optimize the failing case via Thread.join.
646	+	delay(millis);
647	+	for (Thread thread : threads)
648	+	assertTrue(thread.isAlive());
649	+	} catch (InterruptedException ie) {
650	+	fail("Unexpected InterruptedException");
651	+	}
652	+	}
653	+
654	+	/**
655	+	* Checks that future.get times out, with the default timeout of
656	+	* {@code timeoutMillis()}.
657	+	*/
658	+	void assertFutureTimesOut(Future future) {
659	+	assertFutureTimesOut(future, timeoutMillis());
660	+	}
661	+
662	+	/**
663	+	* Checks that future.get times out, with the given millisecond timeout.
664	+	*/
665	+	void assertFutureTimesOut(Future future, long timeoutMillis) {
666	+	long startTime = System.nanoTime();
667	+	try {
668	+	future.get(timeoutMillis, MILLISECONDS);
669	+	shouldThrow();
670	+	} catch (TimeoutException success) {
671	+	} catch (Exception e) {
672	+	threadUnexpectedException(e);
673	+	} finally { future.cancel(true); }
674	+	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
675	+	}
676
677		/**
678		* Fails with message "should throw exception".
#	Line 448 | Line 713 | public class JSR166TestCase extends Test
713		public static final Integer m6  = new Integer(-6);
714		public static final Integer m10 = new Integer(-10);
715
451	–
716		/**
717		* Runs Runnable r with a security policy that permits precisely
718		* the specified permissions.  If there is no current security
#	Line 460 | Line 724 | public class JSR166TestCase extends Test
724		SecurityManager sm = System.getSecurityManager();
725		if (sm == null) {
726		r.run();
727	+	}
728	+	runWithSecurityManagerWithPermissions(r, permissions);
729	+	}
730	+
731	+	/**
732	+	* Runs Runnable r with a security policy that permits precisely
733	+	* the specified permissions.  If there is no current security
734	+	* manager, a temporary one is set for the duration of the
735	+	* Runnable.  We require that any security manager permit
736	+	* getPolicy/setPolicy.
737	+	*/
738	+	public void runWithSecurityManagerWithPermissions(Runnable r,
739	+	Permission... permissions) {
740	+	SecurityManager sm = System.getSecurityManager();
741	+	if (sm == null) {
742		Policy savedPolicy = Policy.getPolicy();
743		try {
744		Policy.setPolicy(permissivePolicy());
745		System.setSecurityManager(new SecurityManager());
746	<	runWithPermissions(r, permissions);
746	>	runWithSecurityManagerWithPermissions(r, permissions);
747		} finally {
748		System.setSecurityManager(null);
749		Policy.setPolicy(savedPolicy);
#	Line 512 | Line 791 | public class JSR166TestCase extends Test
791		return perms.implies(p);
792		}
793		public void refresh() {}
794	+	public String toString() {
795	+	List<Permission> ps = new ArrayList<Permission>();
796	+	for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
797	+	ps.add(e.nextElement());
798	+	return "AdjustablePolicy with permissions " + ps;
799	+	}
800		}
801
802		/**
#	Line 534 | Line 819 | public class JSR166TestCase extends Test
819		}
820
821		/**
822	<	* Sleep until the timeout has elapsed, or interrupted.
823	<	* Does <em>NOT</em> throw InterruptedException.
822	>	* Sleeps until the given time has elapsed.
823	>	* Throws AssertionFailedError if interrupted.
824		*/
825	<	void sleepTillInterrupted(long timeoutMillis) {
825	>	void sleep(long millis) {
826		try {
827	<	Thread.sleep(timeoutMillis);
828	<	} catch (InterruptedException wakeup) {}
827	>	delay(millis);
828	>	} catch (InterruptedException ie) {
829	>	AssertionFailedError afe =
830	>	new AssertionFailedError("Unexpected InterruptedException");
831	>	afe.initCause(ie);
832	>	throw afe;
833	>	}
834	>	}
835	>
836	>	/**
837	>	* Spin-waits up to the specified number of milliseconds for the given
838	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
839	>	*/
840	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
841	>	long startTime = System.nanoTime();
842	>	for (;;) {
843	>	Thread.State s = thread.getState();
844	>	if (s == Thread.State.BLOCKED ||
845	>	s == Thread.State.WAITING ||
846	>	s == Thread.State.TIMED_WAITING)
847	>	return;
848	>	else if (s == Thread.State.TERMINATED)
849	>	fail("Unexpected thread termination");
850	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
851	>	threadAssertTrue(thread.isAlive());
852	>	return;
853	>	}
854	>	Thread.yield();
855	>	}
856	>	}
857	>
858	>	/**
859	>	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
860	>	* state: BLOCKED, WAITING, or TIMED_WAITING.
861	>	*/
862	>	void waitForThreadToEnterWaitState(Thread thread) {
863	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
864	>	}
865	>
866	>	/**
867	>	* Returns the number of milliseconds since time given by
868	>	* startNanoTime, which must have been previously returned from a
869	>	* call to {@link System.nanoTime()}.
870	>	*/
871	>	long millisElapsedSince(long startNanoTime) {
872	>	return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
873		}
874
875		/**
876	<	* Returns a new started Thread running the given runnable.
876	>	* Returns a new started daemon Thread running the given runnable.
877		*/
878		Thread newStartedThread(Runnable runnable) {
879		Thread t = new Thread(runnable);
880	+	t.setDaemon(true);
881		t.start();
882		return t;
883		}
884
885	+	/**
886	+	* Waits for the specified time (in milliseconds) for the thread
887	+	* to terminate (using {@link Thread#join(long)}), else interrupts
888	+	* the thread (in the hope that it may terminate later) and fails.
889	+	*/
890	+	void awaitTermination(Thread t, long timeoutMillis) {
891	+	try {
892	+	t.join(timeoutMillis);
893	+	} catch (InterruptedException ie) {
894	+	threadUnexpectedException(ie);
895	+	} finally {
896	+	if (t.getState() != Thread.State.TERMINATED) {
897	+	t.interrupt();
898	+	fail("Test timed out");
899	+	}
900	+	}
901	+	}
902	+
903	+	/**
904	+	* Waits for LONG_DELAY_MS milliseconds for the thread to
905	+	* terminate (using {@link Thread#join(long)}), else interrupts
906	+	* the thread (in the hope that it may terminate later) and fails.
907	+	*/
908	+	void awaitTermination(Thread t) {
909	+	awaitTermination(t, LONG_DELAY_MS);
910	+	}
911	+
912		// Some convenient Runnable classes
913
914		public abstract class CheckedRunnable implements Runnable {
#	Line 614 | Line 971 | public class JSR166TestCase extends Test
971		realRun();
972		threadShouldThrow("InterruptedException");
973		} catch (InterruptedException success) {
974	+	threadAssertFalse(Thread.interrupted());
975		} catch (Throwable t) {
976		threadUnexpectedException(t);
977		}
#	Line 643 | Line 1001 | public class JSR166TestCase extends Test
1001		threadShouldThrow("InterruptedException");
1002		return result;
1003		} catch (InterruptedException success) {
1004	+	threadAssertFalse(Thread.interrupted());
1005		} catch (Throwable t) {
1006		threadUnexpectedException(t);
1007		}
#	Line 666 | Line 1025 | public class JSR166TestCase extends Test
1025
1026		public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
1027		return new CheckedCallable<String>() {
1028	<	public String realCall() {
1028	>	protected String realCall() {
1029		try {
1030		latch.await();
1031		} catch (InterruptedException quittingTime) {}
#	Line 674 | Line 1033 | public class JSR166TestCase extends Test
1033		}};
1034		}
1035
1036	+	public Runnable awaiter(final CountDownLatch latch) {
1037	+	return new CheckedRunnable() {
1038	+	public void realRun() throws InterruptedException {
1039	+	await(latch);
1040	+	}};
1041	+	}
1042	+
1043	+	public void await(CountDownLatch latch) {
1044	+	try {
1045	+	assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS));
1046	+	} catch (Throwable t) {
1047	+	threadUnexpectedException(t);
1048	+	}
1049	+	}
1050	+
1051	+	public void await(Semaphore semaphore) {
1052	+	try {
1053	+	assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS));
1054	+	} catch (Throwable t) {
1055	+	threadUnexpectedException(t);
1056	+	}
1057	+	}
1058	+
1059	+	//     /**
1060	+	//      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
1061	+	//      */
1062	+	//     public void await(AtomicBoolean flag) {
1063	+	//         await(flag, LONG_DELAY_MS);
1064	+	//     }
1065	+
1066	+	//     /**
1067	+	//      * Spin-waits up to the specified timeout until flag becomes true.
1068	+	//      */
1069	+	//     public void await(AtomicBoolean flag, long timeoutMillis) {
1070	+	//         long startTime = System.nanoTime();
1071	+	//         while (!flag.get()) {
1072	+	//             if (millisElapsedSince(startTime) > timeoutMillis)
1073	+	//                 throw new AssertionFailedError("timed out");
1074	+	//             Thread.yield();
1075	+	//         }
1076	+	//     }
1077	+
1078		public static class NPETask implements Callable<String> {
1079		public String call() { throw new NullPointerException(); }
1080		}
#	Line 684 | Line 1085 | public class JSR166TestCase extends Test
1085
1086		public class ShortRunnable extends CheckedRunnable {
1087		protected void realRun() throws Throwable {
1088	<	Thread.sleep(SHORT_DELAY_MS);
1088	>	delay(SHORT_DELAY_MS);
1089		}
1090		}
1091
1092		public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1093		protected void realRun() throws InterruptedException {
1094	<	Thread.sleep(SHORT_DELAY_MS);
1094	>	delay(SHORT_DELAY_MS);
1095		}
1096		}
1097
1098		public class SmallRunnable extends CheckedRunnable {
1099		protected void realRun() throws Throwable {
1100	<	Thread.sleep(SMALL_DELAY_MS);
1100	>	delay(SMALL_DELAY_MS);
1101		}
1102		}
1103
1104		public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1105		protected void realRun() {
1106		try {
1107	<	Thread.sleep(SMALL_DELAY_MS);
1107	>	delay(SMALL_DELAY_MS);
1108		} catch (InterruptedException ok) {}
1109		}
1110		}
1111
1112		public class SmallCallable extends CheckedCallable {
1113		protected Object realCall() throws InterruptedException {
1114	<	Thread.sleep(SMALL_DELAY_MS);
1114	>	delay(SMALL_DELAY_MS);
1115		return Boolean.TRUE;
1116		}
1117		}
1118
1119		public class MediumRunnable extends CheckedRunnable {
1120		protected void realRun() throws Throwable {
1121	<	Thread.sleep(MEDIUM_DELAY_MS);
1121	>	delay(MEDIUM_DELAY_MS);
1122		}
1123		}
1124
1125		public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1126		protected void realRun() throws InterruptedException {
1127	<	Thread.sleep(MEDIUM_DELAY_MS);
1127	>	delay(MEDIUM_DELAY_MS);
1128		}
1129		}
1130
1131	+	public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1132	+	return new CheckedRunnable() {
1133	+	protected void realRun() {
1134	+	try {
1135	+	delay(timeoutMillis);
1136	+	} catch (InterruptedException ok) {}
1137	+	}};
1138	+	}
1139	+
1140		public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1141		protected void realRun() {
1142		try {
1143	<	Thread.sleep(MEDIUM_DELAY_MS);
1143	>	delay(MEDIUM_DELAY_MS);
1144		} catch (InterruptedException ok) {}
1145		}
1146		}
#	Line 738 | Line 1148 | public class JSR166TestCase extends Test
1148		public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1149		protected void realRun() {
1150		try {
1151	<	Thread.sleep(LONG_DELAY_MS);
1151	>	delay(LONG_DELAY_MS);
1152		} catch (InterruptedException ok) {}
1153		}
1154		}
#	Line 752 | Line 1162 | public class JSR166TestCase extends Test
1162		}
1163		}
1164
1165	+	public interface TrackedRunnable extends Runnable {
1166	+	boolean isDone();
1167	+	}
1168	+
1169	+	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1170	+	return new TrackedRunnable() {
1171	+	private volatile boolean done = false;
1172	+	public boolean isDone() { return done; }
1173	+	public void run() {
1174	+	try {
1175	+	delay(timeoutMillis);
1176	+	done = true;
1177	+	} catch (InterruptedException ok) {}
1178	+	}
1179	+	};
1180	+	}
1181	+
1182		public static class TrackedShortRunnable implements Runnable {
1183		public volatile boolean done = false;
1184		public void run() {
1185		try {
1186	<	Thread.sleep(SMALL_DELAY_MS);
1186	>	delay(SHORT_DELAY_MS);
1187	>	done = true;
1188	>	} catch (InterruptedException ok) {}
1189	>	}
1190	>	}
1191	>
1192	>	public static class TrackedSmallRunnable implements Runnable {
1193	>	public volatile boolean done = false;
1194	>	public void run() {
1195	>	try {
1196	>	delay(SMALL_DELAY_MS);
1197		done = true;
1198		} catch (InterruptedException ok) {}
1199		}
#	Line 766 | Line 1203 | public class JSR166TestCase extends Test
1203		public volatile boolean done = false;
1204		public void run() {
1205		try {
1206	<	Thread.sleep(MEDIUM_DELAY_MS);
1206	>	delay(MEDIUM_DELAY_MS);
1207		done = true;
1208		} catch (InterruptedException ok) {}
1209		}
#	Line 776 | Line 1213 | public class JSR166TestCase extends Test
1213		public volatile boolean done = false;
1214		public void run() {
1215		try {
1216	<	Thread.sleep(LONG_DELAY_MS);
1216	>	delay(LONG_DELAY_MS);
1217		done = true;
1218		} catch (InterruptedException ok) {}
1219		}
#	Line 793 | Line 1230 | public class JSR166TestCase extends Test
1230		public volatile boolean done = false;
1231		public Object call() {
1232		try {
1233	<	Thread.sleep(SMALL_DELAY_MS);
1233	>	delay(SMALL_DELAY_MS);
1234		done = true;
1235		} catch (InterruptedException ok) {}
1236		return Boolean.TRUE;
#	Line 806 | Line 1243 | public class JSR166TestCase extends Test
1243		public abstract class CheckedRecursiveAction extends RecursiveAction {
1244		protected abstract void realCompute() throws Throwable;
1245
1246	<	public final void compute() {
1246	>	@Override protected final void compute() {
1247		try {
1248		realCompute();
1249		} catch (Throwable t) {
#	Line 821 | Line 1258 | public class JSR166TestCase extends Test
1258		public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
1259		protected abstract T realCompute() throws Throwable;
1260
1261	<	public final T compute() {
1261	>	@Override protected final T compute() {
1262		try {
1263		return realCompute();
1264		} catch (Throwable t) {
#	Line 839 | Line 1276 | public class JSR166TestCase extends Test
1276		ThreadPoolExecutor executor) {}
1277		}
1278
1279	+	/**
1280	+	* A CyclicBarrier that uses timed await and fails with
1281	+	* AssertionFailedErrors instead of throwing checked exceptions.
1282	+	*/
1283	+	public class CheckedBarrier extends CyclicBarrier {
1284	+	public CheckedBarrier(int parties) { super(parties); }
1285	+
1286	+	public int await() {
1287	+	try {
1288	+	return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1289	+	} catch (TimeoutException e) {
1290	+	throw new AssertionFailedError("timed out");
1291	+	} catch (Exception e) {
1292	+	AssertionFailedError afe =
1293	+	new AssertionFailedError("Unexpected exception: " + e);
1294	+	afe.initCause(e);
1295	+	throw afe;
1296	+	}
1297	+	}
1298	+	}
1299	+
1300	+	void checkEmpty(BlockingQueue q) {
1301	+	try {
1302	+	assertTrue(q.isEmpty());
1303	+	assertEquals(0, q.size());
1304	+	assertNull(q.peek());
1305	+	assertNull(q.poll());
1306	+	assertNull(q.poll(0, MILLISECONDS));
1307	+	assertEquals(q.toString(), "[]");
1308	+	assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1309	+	assertFalse(q.iterator().hasNext());
1310	+	try {
1311	+	q.element();
1312	+	shouldThrow();
1313	+	} catch (NoSuchElementException success) {}
1314	+	try {
1315	+	q.iterator().next();
1316	+	shouldThrow();
1317	+	} catch (NoSuchElementException success) {}
1318	+	try {
1319	+	q.remove();
1320	+	shouldThrow();
1321	+	} catch (NoSuchElementException success) {}
1322	+	} catch (InterruptedException ie) {
1323	+	threadUnexpectedException(ie);
1324	+	}
1325	+	}
1326	+
1327	+	void assertSerialEquals(Object x, Object y) {
1328	+	assertTrue(Arrays.equals(serialBytes(x), serialBytes(y)));
1329	+	}
1330	+
1331	+	void assertNotSerialEquals(Object x, Object y) {
1332	+	assertFalse(Arrays.equals(serialBytes(x), serialBytes(y)));
1333	+	}
1334	+
1335	+	byte[] serialBytes(Object o) {
1336	+	try {
1337	+	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1338	+	ObjectOutputStream oos = new ObjectOutputStream(bos);
1339	+	oos.writeObject(o);
1340	+	oos.flush();
1341	+	oos.close();
1342	+	return bos.toByteArray();
1343	+	} catch (Throwable t) {
1344	+	threadUnexpectedException(t);
1345	+	return new byte[0];
1346	+	}
1347	+	}
1348	+
1349	+	@SuppressWarnings("unchecked")
1350	+	<T> T serialClone(T o) {
1351	+	try {
1352	+	ObjectInputStream ois = new ObjectInputStream
1353	+	(new ByteArrayInputStream(serialBytes(o)));
1354	+	T clone = (T) ois.readObject();
1355	+	assertSame(o.getClass(), clone.getClass());
1356	+	return clone;
1357	+	} catch (Throwable t) {
1358	+	threadUnexpectedException(t);
1359	+	return null;
1360	+	}
1361	+	}
1362	+
1363	+	public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1364	+	Runnable... throwingActions) {
1365	+	for (Runnable throwingAction : throwingActions) {
1366	+	boolean threw = false;
1367	+	try { throwingAction.run(); }
1368	+	catch (Throwable t) {
1369	+	threw = true;
1370	+	if (!expectedExceptionClass.isInstance(t)) {
1371	+	AssertionFailedError afe =
1372	+	new AssertionFailedError
1373	+	("Expected " + expectedExceptionClass.getName() +
1374	+	", got " + t.getClass().getName());
1375	+	afe.initCause(t);
1376	+	threadUnexpectedException(afe);
1377	+	}
1378	+	}
1379	+	if (!threw)
1380	+	shouldThrow(expectedExceptionClass.getName());
1381	+	}
1382	+	}
1383		}

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