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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.54 by jsr166, Fri Sep 17 00:52:36 2010 UTC vs.
Revision 1.111 by dl, Sun Jul 21 22:24:18 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	<	* Runs all JSR166 unit tests using junit.textui.TestRunner
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.
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 105 | Line 166 | public class JSR166TestCase extends Test
166		Policy.setPolicy(permissivePolicy());
167		System.setSecurityManager(new SecurityManager());
168		}
169	<	int iters = 1;
170	<	if (args.length > 0)
110	<	iters = Integer.parseInt(args[0]);
169	>	int iters = (args.length == 0) ? 1 : Integer.parseInt(args[0]);
170	>
171		Test s = suite();
172		for (int i = 0; i < iters; ++i) {
173		junit.textui.TestRunner.run(s);
#	Line 117 | 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(new TestSuite(ForkJoinPoolTest.class));
230	<	suite.addTest(new TestSuite(ForkJoinTaskTest.class));
231	<	suite.addTest(new TestSuite(RecursiveActionTest.class));
232	<	suite.addTest(new TestSuite(RecursiveTaskTest.class));
233	<	suite.addTest(new TestSuite(LinkedTransferQueueTest.class));
234	<	suite.addTest(new TestSuite(PhaserTest.class));
235	<	suite.addTest(new TestSuite(ThreadLocalRandomTest.class));
236	<	suite.addTest(new TestSuite(AbstractExecutorServiceTest.class));
237	<	suite.addTest(new TestSuite(AbstractQueueTest.class));
238	<	suite.addTest(new TestSuite(AbstractQueuedSynchronizerTest.class));
239	<	suite.addTest(new TestSuite(AbstractQueuedLongSynchronizerTest.class));
240	<	suite.addTest(new TestSuite(ArrayBlockingQueueTest.class));
241	<	suite.addTest(new TestSuite(ArrayDequeTest.class));
242	<	suite.addTest(new TestSuite(AtomicBooleanTest.class));
243	<	suite.addTest(new TestSuite(AtomicIntegerArrayTest.class));
244	<	suite.addTest(new TestSuite(AtomicIntegerFieldUpdaterTest.class));
245	<	suite.addTest(new TestSuite(AtomicIntegerTest.class));
246	<	suite.addTest(new TestSuite(AtomicLongArrayTest.class));
247	<	suite.addTest(new TestSuite(AtomicLongFieldUpdaterTest.class));
248	<	suite.addTest(new TestSuite(AtomicLongTest.class));
249	<	suite.addTest(new TestSuite(AtomicMarkableReferenceTest.class));
250	<	suite.addTest(new TestSuite(AtomicReferenceArrayTest.class));
251	<	suite.addTest(new TestSuite(AtomicReferenceFieldUpdaterTest.class));
252	<	suite.addTest(new TestSuite(AtomicReferenceTest.class));
253	<	suite.addTest(new TestSuite(AtomicStampedReferenceTest.class));
254	<	suite.addTest(new TestSuite(ConcurrentHashMapTest.class));
255	<	suite.addTest(new TestSuite(ConcurrentLinkedDequeTest.class));
256	<	suite.addTest(new TestSuite(ConcurrentLinkedQueueTest.class));
257	<	suite.addTest(new TestSuite(ConcurrentSkipListMapTest.class));
258	<	suite.addTest(new TestSuite(ConcurrentSkipListSubMapTest.class));
259	<	suite.addTest(new TestSuite(ConcurrentSkipListSetTest.class));
260	<	suite.addTest(new TestSuite(ConcurrentSkipListSubSetTest.class));
261	<	suite.addTest(new TestSuite(CopyOnWriteArrayListTest.class));
262	<	suite.addTest(new TestSuite(CopyOnWriteArraySetTest.class));
263	<	suite.addTest(new TestSuite(CountDownLatchTest.class));
264	<	suite.addTest(new TestSuite(CyclicBarrierTest.class));
265	<	suite.addTest(new TestSuite(DelayQueueTest.class));
266	<	suite.addTest(new TestSuite(EntryTest.class));
267	<	suite.addTest(new TestSuite(ExchangerTest.class));
268	<	suite.addTest(new TestSuite(ExecutorsTest.class));
269	<	suite.addTest(new TestSuite(ExecutorCompletionServiceTest.class));
270	<	suite.addTest(new TestSuite(FutureTaskTest.class));
271	<	suite.addTest(new TestSuite(LinkedBlockingDequeTest.class));
272	<	suite.addTest(new TestSuite(LinkedBlockingQueueTest.class));
273	<	suite.addTest(new TestSuite(LinkedListTest.class));
274	<	suite.addTest(new TestSuite(LockSupportTest.class));
275	<	suite.addTest(new TestSuite(PriorityBlockingQueueTest.class));
276	<	suite.addTest(new TestSuite(PriorityQueueTest.class));
277	<	suite.addTest(new TestSuite(ReentrantLockTest.class));
278	<	suite.addTest(new TestSuite(ReentrantReadWriteLockTest.class));
279	<	suite.addTest(new TestSuite(ScheduledExecutorTest.class));
280	<	suite.addTest(new TestSuite(ScheduledExecutorSubclassTest.class));
281	<	suite.addTest(new TestSuite(SemaphoreTest.class));
282	<	suite.addTest(new TestSuite(SynchronousQueueTest.class));
283	<	suite.addTest(new TestSuite(SystemTest.class));
284	<	suite.addTest(new TestSuite(ThreadLocalTest.class));
285	<	suite.addTest(new TestSuite(ThreadPoolExecutorTest.class));
286	<	suite.addTest(new TestSuite(ThreadPoolExecutorSubclassTest.class));
287	<	suite.addTest(new TestSuite(ThreadTest.class));
288	<	suite.addTest(new TestSuite(TimeUnitTest.class));
289	<	suite.addTest(new TestSuite(TreeMapTest.class));
290	<	suite.addTest(new TestSuite(TreeSetTest.class));
291	<	suite.addTest(new TestSuite(TreeSubMapTest.class));
292	<	suite.addTest(new TestSuite(TreeSubSetTest.class));
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	>	"CompletableFutureTest",
298	>	"ConcurrentHashMap8Test",
299	>	"CountedCompleterTest",
300	>	"DoubleAccumulatorTest",
301	>	"DoubleAdderTest",
302	>	"ForkJoinPool8Test",
303	>	"ForkJoinTask8Test",
304	>	"LongAccumulatorTest",
305	>	"LongAdderTest",
306	>	"SplittableRandomTest",
307	>	"StampedLockTest",
308	>	};
309	>	addNamedTestClasses(suite, java8TestClassNames);
310	>	}
311
312		return suite;
313		}
314
315	+	// Delays for timing-dependent tests, in milliseconds.
316
317		public static long SHORT_DELAY_MS;
318		public static long SMALL_DELAY_MS;
319		public static long MEDIUM_DELAY_MS;
320		public static long LONG_DELAY_MS;
321
200	–
322		/**
323		* Returns the shortest timed delay. This could
324		* be reimplemented to use for example a Property.
#	Line 206 | Line 327 | public class JSR166TestCase extends Test
327		return 50;
328		}
329
209	–
330		/**
331		* Sets delays as multiples of SHORT_DELAY.
332		*/
#	Line 214 | Line 334 | public class JSR166TestCase extends Test
334		SHORT_DELAY_MS = getShortDelay();
335		SMALL_DELAY_MS  = SHORT_DELAY_MS * 5;
336		MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10;
337	<	LONG_DELAY_MS   = SHORT_DELAY_MS * 50;
337	>	LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
338	>	}
339	>
340	>	/**
341	>	* Returns a timeout in milliseconds to be used in tests that
342	>	* verify that operations block or time out.
343	>	*/
344	>	long timeoutMillis() {
345	>	return SHORT_DELAY_MS / 4;
346	>	}
347	>
348	>	/**
349	>	* Returns a new Date instance representing a time delayMillis
350	>	* milliseconds in the future.
351	>	*/
352	>	Date delayedDate(long delayMillis) {
353	>	return new Date(System.currentTimeMillis() + delayMillis);
354		}
355
356		/**
#	Line 238 | Line 374 | public class JSR166TestCase extends Test
374		}
375
376		/**
377	+	* Extra checks that get done for all test cases.
378	+	*
379		* Triggers test case failure if any thread assertions have failed,
380		* by rethrowing, in the test harness thread, any exception recorded
381		* earlier by threadRecordFailure.
382	+	*
383	+	* Triggers test case failure if interrupt status is set in the main thread.
384		*/
385		public void tearDown() throws Exception {
386	<	Throwable t = threadFailure.get();
386	>	Throwable t = threadFailure.getAndSet(null);
387		if (t != null) {
388		if (t instanceof Error)
389		throw (Error) t;
#	Line 251 | Line 391 | public class JSR166TestCase extends Test
391		throw (RuntimeException) t;
392		else if (t instanceof Exception)
393		throw (Exception) t;
394	<	else
395	<	throw new AssertionError(t);
394	>	else {
395	>	AssertionFailedError afe =
396	>	new AssertionFailedError(t.toString());
397	>	afe.initCause(t);
398	>	throw afe;
399	>	}
400	>	}
401	>
402	>	if (Thread.interrupted())
403	>	throw new AssertionFailedError("interrupt status set in main thread");
404	>
405	>	checkForkJoinPoolThreadLeaks();
406	>	}
407	>
408	>	/**
409	>	* Find missing try { ... } finally { joinPool(e); }
410	>	*/
411	>	void checkForkJoinPoolThreadLeaks() throws InterruptedException {
412	>	Thread[] survivors = new Thread[5];
413	>	int count = Thread.enumerate(survivors);
414	>	for (int i = 0; i < count; i++) {
415	>	Thread thread = survivors[i];
416	>	String name = thread.getName();
417	>	if (name.startsWith("ForkJoinPool-")) {
418	>	// give thread some time to terminate
419	>	thread.join(LONG_DELAY_MS);
420	>	if (!thread.isAlive()) continue;
421	>	thread.stop();
422	>	throw new AssertionFailedError
423	>	(String.format("Found leaked ForkJoinPool thread test=%s thread=%s%n",
424	>	toString(), name));
425	>	}
426		}
427		}
428
429		/**
430		* Just like fail(reason), but additionally recording (using
431	<	* threadRecordFailure) any AssertionError thrown, so that the current
432	<	* testcase will fail.
431	>	* threadRecordFailure) any AssertionFailedError thrown, so that
432	>	* the current testcase will fail.
433		*/
434		public void threadFail(String reason) {
435		try {
436		fail(reason);
437	<	} catch (Throwable t) {
437	>	} catch (AssertionFailedError t) {
438		threadRecordFailure(t);
439		fail(reason);
440		}
#	Line 272 | Line 442 | public class JSR166TestCase extends Test
442
443		/**
444		* Just like assertTrue(b), but additionally recording (using
445	<	* threadRecordFailure) any AssertionError thrown, so that the current
446	<	* testcase will fail.
445	>	* threadRecordFailure) any AssertionFailedError thrown, so that
446	>	* the current testcase will fail.
447		*/
448		public void threadAssertTrue(boolean b) {
449		try {
450		assertTrue(b);
451	<	} catch (AssertionError t) {
451	>	} catch (AssertionFailedError t) {
452		threadRecordFailure(t);
453		throw t;
454		}
#	Line 286 | Line 456 | public class JSR166TestCase extends Test
456
457		/**
458		* Just like assertFalse(b), but additionally recording (using
459	<	* threadRecordFailure) any AssertionError thrown, so that the
460	<	* current testcase will fail.
459	>	* threadRecordFailure) any AssertionFailedError thrown, so that
460	>	* the current testcase will fail.
461		*/
462		public void threadAssertFalse(boolean b) {
463		try {
464		assertFalse(b);
465	<	} catch (AssertionError t) {
465	>	} catch (AssertionFailedError t) {
466		threadRecordFailure(t);
467		throw t;
468		}
#	Line 300 | Line 470 | public class JSR166TestCase extends Test
470
471		/**
472		* Just like assertNull(x), but additionally recording (using
473	<	* threadRecordFailure) any AssertionError thrown, so that the
474	<	* current testcase will fail.
473	>	* threadRecordFailure) any AssertionFailedError thrown, so that
474	>	* the current testcase will fail.
475		*/
476		public void threadAssertNull(Object x) {
477		try {
478		assertNull(x);
479	<	} catch (AssertionError t) {
479	>	} catch (AssertionFailedError t) {
480		threadRecordFailure(t);
481		throw t;
482		}
#	Line 314 | Line 484 | public class JSR166TestCase extends Test
484
485		/**
486		* Just like assertEquals(x, y), but additionally recording (using
487	<	* threadRecordFailure) any AssertionError thrown, so that the
488	<	* current testcase will fail.
487	>	* threadRecordFailure) any AssertionFailedError thrown, so that
488	>	* the current testcase will fail.
489		*/
490		public void threadAssertEquals(long x, long y) {
491		try {
492		assertEquals(x, y);
493	<	} catch (AssertionError t) {
493	>	} catch (AssertionFailedError t) {
494		threadRecordFailure(t);
495		throw t;
496		}
#	Line 328 | Line 498 | public class JSR166TestCase extends Test
498
499		/**
500		* Just like assertEquals(x, y), but additionally recording (using
501	<	* threadRecordFailure) any AssertionError thrown, so that the
502	<	* current testcase will fail.
501	>	* threadRecordFailure) any AssertionFailedError thrown, so that
502	>	* the current testcase will fail.
503		*/
504		public void threadAssertEquals(Object x, Object y) {
505		try {
506		assertEquals(x, y);
507	<	} catch (AssertionError t) {
507	>	} catch (AssertionFailedError t) {
508		threadRecordFailure(t);
509		throw t;
510	+	} catch (Throwable t) {
511	+	threadUnexpectedException(t);
512		}
513		}
514
515		/**
516		* Just like assertSame(x, y), but additionally recording (using
517	<	* threadRecordFailure) any AssertionError thrown, so that the
518	<	* current testcase will fail.
517	>	* threadRecordFailure) any AssertionFailedError thrown, so that
518	>	* the current testcase will fail.
519		*/
520		public void threadAssertSame(Object x, Object y) {
521		try {
522		assertSame(x, y);
523	<	} catch (AssertionError t) {
523	>	} catch (AssertionFailedError t) {
524		threadRecordFailure(t);
525		throw t;
526		}
#	Line 369 | Line 541 | public class JSR166TestCase extends Test
541		}
542
543		/**
544	<	* Calls threadFail with message "Unexpected exception" + ex.
544	>	* Records the given exception using {@link #threadRecordFailure},
545	>	* then rethrows the exception, wrapping it in an
546	>	* AssertionFailedError if necessary.
547		*/
548		public void threadUnexpectedException(Throwable t) {
549		threadRecordFailure(t);
550		t.printStackTrace();
377	–	// Rethrow, wrapping in an AssertionError if necessary
551		if (t instanceof RuntimeException)
552		throw (RuntimeException) t;
553		else if (t instanceof Error)
554		throw (Error) t;
555		else {
556	<	AssertionError ae = new AssertionError("unexpected exception: " + t);
557	<	t.initCause(t);
558	<	throw ae;
559	<	}
556	>	AssertionFailedError afe =
557	>	new AssertionFailedError("unexpected exception: " + t);
558	>	afe.initCause(t);
559	>	throw afe;
560	>	}
561	>	}
562	>
563	>	/**
564	>	* Delays, via Thread.sleep, for the given millisecond delay, but
565	>	* if the sleep is shorter than specified, may re-sleep or yield
566	>	* until time elapses.
567	>	*/
568	>	static void delay(long millis) throws InterruptedException {
569	>	long startTime = System.nanoTime();
570	>	long ns = millis * 1000 * 1000;
571	>	for (;;) {
572	>	if (millis > 0L)
573	>	Thread.sleep(millis);
574	>	else // too short to sleep
575	>	Thread.yield();
576	>	long d = ns - (System.nanoTime() - startTime);
577	>	if (d > 0L)
578	>	millis = d / (1000 * 1000);
579	>	else
580	>	break;
581	>	}
582		}
583
584		/**
585		* Waits out termination of a thread pool or fails doing so.
586		*/
587	<	public void joinPool(ExecutorService exec) {
587	>	void joinPool(ExecutorService exec) {
588		try {
589		exec.shutdown();
590		assertTrue("ExecutorService did not terminate in a timely manner",
591	<	exec.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
591	>	exec.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS));
592		} catch (SecurityException ok) {
593		// Allowed in case test doesn't have privs
594		} catch (InterruptedException ie) {
#	Line 401 | Line 596 | public class JSR166TestCase extends Test
596		}
597		}
598
599	+	/**
600	+	* A debugging tool to print all stack traces, as jstack does.
601	+	*/
602	+	static void printAllStackTraces() {
603	+	for (ThreadInfo info :
604	+	ManagementFactory.getThreadMXBean()
605	+	.dumpAllThreads(true, true))
606	+	System.err.print(info);
607	+	}
608	+
609	+	/**
610	+	* Checks that thread does not terminate within the default
611	+	* millisecond delay of {@code timeoutMillis()}.
612	+	*/
613	+	void assertThreadStaysAlive(Thread thread) {
614	+	assertThreadStaysAlive(thread, timeoutMillis());
615	+	}
616	+
617	+	/**
618	+	* Checks that thread does not terminate within the given millisecond delay.
619	+	*/
620	+	void assertThreadStaysAlive(Thread thread, long millis) {
621	+	try {
622	+	// No need to optimize the failing case via Thread.join.
623	+	delay(millis);
624	+	assertTrue(thread.isAlive());
625	+	} catch (InterruptedException ie) {
626	+	fail("Unexpected InterruptedException");
627	+	}
628	+	}
629	+
630	+	/**
631	+	* Checks that the threads do not terminate within the default
632	+	* millisecond delay of {@code timeoutMillis()}.
633	+	*/
634	+	void assertThreadsStayAlive(Thread... threads) {
635	+	assertThreadsStayAlive(timeoutMillis(), threads);
636	+	}
637	+
638	+	/**
639	+	* Checks that the threads do not terminate within the given millisecond delay.
640	+	*/
641	+	void assertThreadsStayAlive(long millis, Thread... threads) {
642	+	try {
643	+	// No need to optimize the failing case via Thread.join.
644	+	delay(millis);
645	+	for (Thread thread : threads)
646	+	assertTrue(thread.isAlive());
647	+	} catch (InterruptedException ie) {
648	+	fail("Unexpected InterruptedException");
649	+	}
650	+	}
651	+
652	+	/**
653	+	* Checks that future.get times out, with the default timeout of
654	+	* {@code timeoutMillis()}.
655	+	*/
656	+	void assertFutureTimesOut(Future future) {
657	+	assertFutureTimesOut(future, timeoutMillis());
658	+	}
659	+
660	+	/**
661	+	* Checks that future.get times out, with the given millisecond timeout.
662	+	*/
663	+	void assertFutureTimesOut(Future future, long timeoutMillis) {
664	+	long startTime = System.nanoTime();
665	+	try {
666	+	future.get(timeoutMillis, MILLISECONDS);
667	+	shouldThrow();
668	+	} catch (TimeoutException success) {
669	+	} catch (Exception e) {
670	+	threadUnexpectedException(e);
671	+	} finally { future.cancel(true); }
672	+	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
673	+	}
674
675		/**
676		* Fails with message "should throw exception".
#	Line 417 | Line 687 | public class JSR166TestCase extends Test
687		}
688
689		/**
420	–	* Fails with message "Unexpected exception: " + ex.
421	–	*/
422	–	public void unexpectedException(Throwable ex) {
423	–	ex.printStackTrace();
424	–	fail("Unexpected exception: " + ex);
425	–	}
426	–
427	–
428	–	/**
690		* The number of elements to place in collections, arrays, etc.
691		*/
692		public static final int SIZE = 20;
#	Line 450 | Line 711 | public class JSR166TestCase extends Test
711		public static final Integer m6  = new Integer(-6);
712		public static final Integer m10 = new Integer(-10);
713
453	–
714		/**
715		* Runs Runnable r with a security policy that permits precisely
716		* the specified permissions.  If there is no current security
#	Line 462 | Line 722 | public class JSR166TestCase extends Test
722		SecurityManager sm = System.getSecurityManager();
723		if (sm == null) {
724		r.run();
725	+	}
726	+	runWithSecurityManagerWithPermissions(r, permissions);
727	+	}
728	+
729	+	/**
730	+	* Runs Runnable r with a security policy that permits precisely
731	+	* the specified permissions.  If there is no current security
732	+	* manager, a temporary one is set for the duration of the
733	+	* Runnable.  We require that any security manager permit
734	+	* getPolicy/setPolicy.
735	+	*/
736	+	public void runWithSecurityManagerWithPermissions(Runnable r,
737	+	Permission... permissions) {
738	+	SecurityManager sm = System.getSecurityManager();
739	+	if (sm == null) {
740		Policy savedPolicy = Policy.getPolicy();
741		try {
742		Policy.setPolicy(permissivePolicy());
743		System.setSecurityManager(new SecurityManager());
744	<	runWithPermissions(r, permissions);
744	>	runWithSecurityManagerWithPermissions(r, permissions);
745		} finally {
746		System.setSecurityManager(null);
747		Policy.setPolicy(savedPolicy);
#	Line 514 | Line 789 | public class JSR166TestCase extends Test
789		return perms.implies(p);
790		}
791		public void refresh() {}
792	+	public String toString() {
793	+	List<Permission> ps = new ArrayList<Permission>();
794	+	for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
795	+	ps.add(e.nextElement());
796	+	return "AdjustablePolicy with permissions " + ps;
797	+	}
798		}
799
800		/**
#	Line 536 | Line 817 | public class JSR166TestCase extends Test
817		}
818
819		/**
820	<	* Sleep until the timeout has elapsed, or interrupted.
821	<	* Does <em>NOT</em> throw InterruptedException.
820	>	* Sleeps until the given time has elapsed.
821	>	* Throws AssertionFailedError if interrupted.
822		*/
823	<	void sleepTillInterrupted(long timeoutMillis) {
823	>	void sleep(long millis) {
824		try {
825	<	Thread.sleep(timeoutMillis);
826	<	} catch (InterruptedException wakeup) {}
825	>	delay(millis);
826	>	} catch (InterruptedException ie) {
827	>	AssertionFailedError afe =
828	>	new AssertionFailedError("Unexpected InterruptedException");
829	>	afe.initCause(ie);
830	>	throw afe;
831	>	}
832		}
833
834		/**
835	<	* Returns a new started Thread running the given runnable.
835	>	* Spin-waits up to the specified number of milliseconds for the given
836	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
837	>	*/
838	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
839	>	long startTime = System.nanoTime();
840	>	for (;;) {
841	>	Thread.State s = thread.getState();
842	>	if (s == Thread.State.BLOCKED ||
843	>	s == Thread.State.WAITING ||
844	>	s == Thread.State.TIMED_WAITING)
845	>	return;
846	>	else if (s == Thread.State.TERMINATED)
847	>	fail("Unexpected thread termination");
848	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
849	>	threadAssertTrue(thread.isAlive());
850	>	return;
851	>	}
852	>	Thread.yield();
853	>	}
854	>	}
855	>
856	>	/**
857	>	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
858	>	* state: BLOCKED, WAITING, or TIMED_WAITING.
859	>	*/
860	>	void waitForThreadToEnterWaitState(Thread thread) {
861	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
862	>	}
863	>
864	>	/**
865	>	* Returns the number of milliseconds since time given by
866	>	* startNanoTime, which must have been previously returned from a
867	>	* call to {@link System.nanoTime()}.
868	>	*/
869	>	long millisElapsedSince(long startNanoTime) {
870	>	return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
871	>	}
872	>
873	>	/**
874	>	* Returns a new started daemon Thread running the given runnable.
875		*/
876		Thread newStartedThread(Runnable runnable) {
877		Thread t = new Thread(runnable);
878	+	t.setDaemon(true);
879		t.start();
880		return t;
881		}
882
883	+	/**
884	+	* Waits for the specified time (in milliseconds) for the thread
885	+	* to terminate (using {@link Thread#join(long)}), else interrupts
886	+	* the thread (in the hope that it may terminate later) and fails.
887	+	*/
888	+	void awaitTermination(Thread t, long timeoutMillis) {
889	+	try {
890	+	t.join(timeoutMillis);
891	+	} catch (InterruptedException ie) {
892	+	threadUnexpectedException(ie);
893	+	} finally {
894	+	if (t.getState() != Thread.State.TERMINATED) {
895	+	t.interrupt();
896	+	fail("Test timed out");
897	+	}
898	+	}
899	+	}
900	+
901	+	/**
902	+	* Waits for LONG_DELAY_MS milliseconds for the thread to
903	+	* terminate (using {@link Thread#join(long)}), else interrupts
904	+	* the thread (in the hope that it may terminate later) and fails.
905	+	*/
906	+	void awaitTermination(Thread t) {
907	+	awaitTermination(t, LONG_DELAY_MS);
908	+	}
909	+
910		// Some convenient Runnable classes
911
912		public abstract class CheckedRunnable implements Runnable {
#	Line 616 | Line 969 | public class JSR166TestCase extends Test
969		realRun();
970		threadShouldThrow("InterruptedException");
971		} catch (InterruptedException success) {
972	+	threadAssertFalse(Thread.interrupted());
973		} catch (Throwable t) {
974		threadUnexpectedException(t);
975		}
#	Line 645 | Line 999 | public class JSR166TestCase extends Test
999		threadShouldThrow("InterruptedException");
1000		return result;
1001		} catch (InterruptedException success) {
1002	+	threadAssertFalse(Thread.interrupted());
1003		} catch (Throwable t) {
1004		threadUnexpectedException(t);
1005		}
#	Line 668 | Line 1023 | public class JSR166TestCase extends Test
1023
1024		public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
1025		return new CheckedCallable<String>() {
1026	<	public String realCall() {
1026	>	protected String realCall() {
1027		try {
1028		latch.await();
1029		} catch (InterruptedException quittingTime) {}
#	Line 676 | Line 1031 | public class JSR166TestCase extends Test
1031		}};
1032		}
1033
1034	+	public Runnable awaiter(final CountDownLatch latch) {
1035	+	return new CheckedRunnable() {
1036	+	public void realRun() throws InterruptedException {
1037	+	await(latch);
1038	+	}};
1039	+	}
1040	+
1041	+	public void await(CountDownLatch latch) {
1042	+	try {
1043	+	assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS));
1044	+	} catch (Throwable t) {
1045	+	threadUnexpectedException(t);
1046	+	}
1047	+	}
1048	+
1049	+	public void await(Semaphore semaphore) {
1050	+	try {
1051	+	assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS));
1052	+	} catch (Throwable t) {
1053	+	threadUnexpectedException(t);
1054	+	}
1055	+	}
1056	+
1057	+	//     /**
1058	+	//      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
1059	+	//      */
1060	+	//     public void await(AtomicBoolean flag) {
1061	+	//         await(flag, LONG_DELAY_MS);
1062	+	//     }
1063	+
1064	+	//     /**
1065	+	//      * Spin-waits up to the specified timeout until flag becomes true.
1066	+	//      */
1067	+	//     public void await(AtomicBoolean flag, long timeoutMillis) {
1068	+	//         long startTime = System.nanoTime();
1069	+	//         while (!flag.get()) {
1070	+	//             if (millisElapsedSince(startTime) > timeoutMillis)
1071	+	//                 throw new AssertionFailedError("timed out");
1072	+	//             Thread.yield();
1073	+	//         }
1074	+	//     }
1075	+
1076		public static class NPETask implements Callable<String> {
1077		public String call() { throw new NullPointerException(); }
1078		}
#	Line 686 | Line 1083 | public class JSR166TestCase extends Test
1083
1084		public class ShortRunnable extends CheckedRunnable {
1085		protected void realRun() throws Throwable {
1086	<	Thread.sleep(SHORT_DELAY_MS);
1086	>	delay(SHORT_DELAY_MS);
1087		}
1088		}
1089
1090		public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1091		protected void realRun() throws InterruptedException {
1092	<	Thread.sleep(SHORT_DELAY_MS);
1092	>	delay(SHORT_DELAY_MS);
1093		}
1094		}
1095
1096		public class SmallRunnable extends CheckedRunnable {
1097		protected void realRun() throws Throwable {
1098	<	Thread.sleep(SMALL_DELAY_MS);
1098	>	delay(SMALL_DELAY_MS);
1099		}
1100		}
1101
1102		public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1103		protected void realRun() {
1104		try {
1105	<	Thread.sleep(SMALL_DELAY_MS);
1105	>	delay(SMALL_DELAY_MS);
1106		} catch (InterruptedException ok) {}
1107		}
1108		}
1109
1110		public class SmallCallable extends CheckedCallable {
1111		protected Object realCall() throws InterruptedException {
1112	<	Thread.sleep(SMALL_DELAY_MS);
1112	>	delay(SMALL_DELAY_MS);
1113		return Boolean.TRUE;
1114		}
1115		}
1116
720	–	public class SmallInterruptedRunnable extends CheckedInterruptedRunnable {
721	–	protected void realRun() throws InterruptedException {
722	–	Thread.sleep(SMALL_DELAY_MS);
723	–	}
724	–	}
725	–
1117		public class MediumRunnable extends CheckedRunnable {
1118		protected void realRun() throws Throwable {
1119	<	Thread.sleep(MEDIUM_DELAY_MS);
1119	>	delay(MEDIUM_DELAY_MS);
1120		}
1121		}
1122
1123		public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1124		protected void realRun() throws InterruptedException {
1125	<	Thread.sleep(MEDIUM_DELAY_MS);
1125	>	delay(MEDIUM_DELAY_MS);
1126		}
1127		}
1128
1129	+	public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1130	+	return new CheckedRunnable() {
1131	+	protected void realRun() {
1132	+	try {
1133	+	delay(timeoutMillis);
1134	+	} catch (InterruptedException ok) {}
1135	+	}};
1136	+	}
1137	+
1138		public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1139		protected void realRun() {
1140		try {
1141	<	Thread.sleep(MEDIUM_DELAY_MS);
1141	>	delay(MEDIUM_DELAY_MS);
1142		} catch (InterruptedException ok) {}
1143		}
1144		}
#	Line 746 | Line 1146 | public class JSR166TestCase extends Test
1146		public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1147		protected void realRun() {
1148		try {
1149	<	Thread.sleep(LONG_DELAY_MS);
1149	>	delay(LONG_DELAY_MS);
1150		} catch (InterruptedException ok) {}
1151		}
1152		}
#	Line 760 | Line 1160 | public class JSR166TestCase extends Test
1160		}
1161		}
1162
1163	+	public interface TrackedRunnable extends Runnable {
1164	+	boolean isDone();
1165	+	}
1166	+
1167	+	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1168	+	return new TrackedRunnable() {
1169	+	private volatile boolean done = false;
1170	+	public boolean isDone() { return done; }
1171	+	public void run() {
1172	+	try {
1173	+	delay(timeoutMillis);
1174	+	done = true;
1175	+	} catch (InterruptedException ok) {}
1176	+	}
1177	+	};
1178	+	}
1179	+
1180		public static class TrackedShortRunnable implements Runnable {
1181		public volatile boolean done = false;
1182		public void run() {
1183		try {
1184	<	Thread.sleep(SMALL_DELAY_MS);
1184	>	delay(SHORT_DELAY_MS);
1185	>	done = true;
1186	>	} catch (InterruptedException ok) {}
1187	>	}
1188	>	}
1189	>
1190	>	public static class TrackedSmallRunnable implements Runnable {
1191	>	public volatile boolean done = false;
1192	>	public void run() {
1193	>	try {
1194	>	delay(SMALL_DELAY_MS);
1195		done = true;
1196		} catch (InterruptedException ok) {}
1197		}
#	Line 774 | Line 1201 | public class JSR166TestCase extends Test
1201		public volatile boolean done = false;
1202		public void run() {
1203		try {
1204	<	Thread.sleep(MEDIUM_DELAY_MS);
1204	>	delay(MEDIUM_DELAY_MS);
1205		done = true;
1206		} catch (InterruptedException ok) {}
1207		}
#	Line 784 | Line 1211 | public class JSR166TestCase extends Test
1211		public volatile boolean done = false;
1212		public void run() {
1213		try {
1214	<	Thread.sleep(LONG_DELAY_MS);
1214	>	delay(LONG_DELAY_MS);
1215		done = true;
1216		} catch (InterruptedException ok) {}
1217		}
#	Line 801 | Line 1228 | public class JSR166TestCase extends Test
1228		public volatile boolean done = false;
1229		public Object call() {
1230		try {
1231	<	Thread.sleep(SMALL_DELAY_MS);
1231	>	delay(SMALL_DELAY_MS);
1232		done = true;
1233		} catch (InterruptedException ok) {}
1234		return Boolean.TRUE;
#	Line 814 | Line 1241 | public class JSR166TestCase extends Test
1241		public abstract class CheckedRecursiveAction extends RecursiveAction {
1242		protected abstract void realCompute() throws Throwable;
1243
1244	<	public final void compute() {
1244	>	@Override protected final void compute() {
1245		try {
1246		realCompute();
1247		} catch (Throwable t) {
#	Line 829 | Line 1256 | public class JSR166TestCase extends Test
1256		public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
1257		protected abstract T realCompute() throws Throwable;
1258
1259	<	public final T compute() {
1259	>	@Override protected final T compute() {
1260		try {
1261		return realCompute();
1262		} catch (Throwable t) {
#	Line 847 | Line 1274 | public class JSR166TestCase extends Test
1274		ThreadPoolExecutor executor) {}
1275		}
1276
1277	+	/**
1278	+	* A CyclicBarrier that uses timed await and fails with
1279	+	* AssertionFailedErrors instead of throwing checked exceptions.
1280	+	*/
1281	+	public class CheckedBarrier extends CyclicBarrier {
1282	+	public CheckedBarrier(int parties) { super(parties); }
1283	+
1284	+	public int await() {
1285	+	try {
1286	+	return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1287	+	} catch (TimeoutException e) {
1288	+	throw new AssertionFailedError("timed out");
1289	+	} catch (Exception e) {
1290	+	AssertionFailedError afe =
1291	+	new AssertionFailedError("Unexpected exception: " + e);
1292	+	afe.initCause(e);
1293	+	throw afe;
1294	+	}
1295	+	}
1296	+	}
1297	+
1298	+	void checkEmpty(BlockingQueue q) {
1299	+	try {
1300	+	assertTrue(q.isEmpty());
1301	+	assertEquals(0, q.size());
1302	+	assertNull(q.peek());
1303	+	assertNull(q.poll());
1304	+	assertNull(q.poll(0, MILLISECONDS));
1305	+	assertEquals(q.toString(), "[]");
1306	+	assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1307	+	assertFalse(q.iterator().hasNext());
1308	+	try {
1309	+	q.element();
1310	+	shouldThrow();
1311	+	} catch (NoSuchElementException success) {}
1312	+	try {
1313	+	q.iterator().next();
1314	+	shouldThrow();
1315	+	} catch (NoSuchElementException success) {}
1316	+	try {
1317	+	q.remove();
1318	+	shouldThrow();
1319	+	} catch (NoSuchElementException success) {}
1320	+	} catch (InterruptedException ie) {
1321	+	threadUnexpectedException(ie);
1322	+	}
1323	+	}
1324	+
1325	+	void assertSerialEquals(Object x, Object y) {
1326	+	assertTrue(Arrays.equals(serialBytes(x), serialBytes(y)));
1327	+	}
1328	+
1329	+	void assertNotSerialEquals(Object x, Object y) {
1330	+	assertFalse(Arrays.equals(serialBytes(x), serialBytes(y)));
1331	+	}
1332	+
1333	+	byte[] serialBytes(Object o) {
1334	+	try {
1335	+	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1336	+	ObjectOutputStream oos = new ObjectOutputStream(bos);
1337	+	oos.writeObject(o);
1338	+	oos.flush();
1339	+	oos.close();
1340	+	return bos.toByteArray();
1341	+	} catch (Throwable t) {
1342	+	threadUnexpectedException(t);
1343	+	return new byte[0];
1344	+	}
1345	+	}
1346	+
1347	+	@SuppressWarnings("unchecked")
1348	+	<T> T serialClone(T o) {
1349	+	try {
1350	+	ObjectInputStream ois = new ObjectInputStream
1351	+	(new ByteArrayInputStream(serialBytes(o)));
1352	+	T clone = (T) ois.readObject();
1353	+	assertSame(o.getClass(), clone.getClass());
1354	+	return clone;
1355	+	} catch (Throwable t) {
1356	+	threadUnexpectedException(t);
1357	+	return null;
1358	+	}
1359	+	}
1360	+
1361	+	public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1362	+	Runnable... throwingActions) {
1363	+	for (Runnable throwingAction : throwingActions) {
1364	+	boolean threw = false;
1365	+	try { throwingAction.run(); }
1366	+	catch (Throwable t) {
1367	+	threw = true;
1368	+	if (!expectedExceptionClass.isInstance(t)) {
1369	+	AssertionFailedError afe =
1370	+	new AssertionFailedError
1371	+	("Expected " + expectedExceptionClass.getName() +
1372	+	", got " + t.getClass().getName());
1373	+	afe.initCause(t);
1374	+	threadUnexpectedException(afe);
1375	+	}
1376	+	}
1377	+	if (!threw)
1378	+	shouldThrow(expectedExceptionClass.getName());
1379	+	}
1380	+	}
1381		}

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