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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.71 by jsr166, Mon Nov 22 06:53:32 2010 UTC vs.
Revision 1.137 by jsr166, Fri Sep 4 18:27:33 2015 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.util.PropertyPermission;
11	–	import java.util.concurrent.*;
12	–	import java.util.concurrent.atomic.AtomicReference;
9		import static java.util.concurrent.TimeUnit.MILLISECONDS;
10		import static java.util.concurrent.TimeUnit.NANOSECONDS;
11	+
12	+	import java.io.ByteArrayInputStream;
13	+	import java.io.ByteArrayOutputStream;
14	+	import java.io.ObjectInputStream;
15	+	import java.io.ObjectOutputStream;
16	+	import java.lang.management.ManagementFactory;
17	+	import java.lang.management.ThreadInfo;
18	+	import java.lang.reflect.Constructor;
19	+	import java.lang.reflect.Method;
20	+	import java.lang.reflect.Modifier;
21		import java.security.CodeSource;
22		import java.security.Permission;
23		import java.security.PermissionCollection;
#	Line 19 | Line 25 | import java.security.Permissions;
25		import java.security.Policy;
26		import java.security.ProtectionDomain;
27		import java.security.SecurityPermission;
28	+	import java.util.ArrayList;
29	+	import java.util.Arrays;
30	+	import java.util.Date;
31	+	import java.util.Enumeration;
32	+	import java.util.Iterator;
33	+	import java.util.List;
34	+	import java.util.NoSuchElementException;
35	+	import java.util.PropertyPermission;
36	+	import java.util.concurrent.BlockingQueue;
37	+	import java.util.concurrent.Callable;
38	+	import java.util.concurrent.CountDownLatch;
39	+	import java.util.concurrent.CyclicBarrier;
40	+	import java.util.concurrent.ExecutorService;
41	+	import java.util.concurrent.Future;
42	+	import java.util.concurrent.RecursiveAction;
43	+	import java.util.concurrent.RecursiveTask;
44	+	import java.util.concurrent.RejectedExecutionHandler;
45	+	import java.util.concurrent.Semaphore;
46	+	import java.util.concurrent.ThreadFactory;
47	+	import java.util.concurrent.ThreadPoolExecutor;
48	+	import java.util.concurrent.TimeoutException;
49	+	import java.util.concurrent.atomic.AtomicReference;
50	+	import java.util.regex.Pattern;
51	+
52	+	import junit.framework.AssertionFailedError;
53	+	import junit.framework.Test;
54	+	import junit.framework.TestCase;
55	+	import junit.framework.TestResult;
56	+	import junit.framework.TestSuite;
57
58		/**
59		* Base class for JSR166 Junit TCK tests.  Defines some constants,
#	Line 61 | Line 96 | import java.security.SecurityPermission;
96		*
97		* </ol>
98		*
99	<	* <p> <b>Other notes</b>
99	>	* <p><b>Other notes</b>
100		* <ul>
101		*
102		* <li> Usually, there is one testcase method per JSR166 method
#	Line 101 | Line 136 | public class JSR166TestCase extends Test
136		Boolean.getBoolean("jsr166.expensiveTests");
137
138		/**
139	+	* If true, also run tests that are not part of the official tck
140	+	* because they test unspecified implementation details.
141	+	*/
142	+	protected static final boolean testImplementationDetails =
143	+	Boolean.getBoolean("jsr166.testImplementationDetails");
144	+
145	+	/**
146		* If true, report on stdout all "slow" tests, that is, ones that
147		* take more than profileThreshold milliseconds to execute.
148		*/
#	Line 114 | Line 156 | public class JSR166TestCase extends Test
156		private static final long profileThreshold =
157		Long.getLong("jsr166.profileThreshold", 100);
158
159	+	/**
160	+	* The number of repetitions per test (for tickling rare bugs).
161	+	*/
162	+	private static final int runsPerTest =
163	+	Integer.getInteger("jsr166.runsPerTest", 1);
164	+
165	+	/**
166	+	* The number of repetitions of the test suite (for finding leaks?).
167	+	*/
168	+	private static final int suiteRuns =
169	+	Integer.getInteger("jsr166.suiteRuns", 1);
170	+
171	+	public JSR166TestCase() { super(); }
172	+	public JSR166TestCase(String name) { super(name); }
173	+
174	+	/**
175	+	* A filter for tests to run, matching strings of the form
176	+	* methodName(className), e.g. "testInvokeAll5(ForkJoinPoolTest)"
177	+	* Usefully combined with jsr166.runsPerTest.
178	+	*/
179	+	private static final Pattern methodFilter = methodFilter();
180	+
181	+	private static Pattern methodFilter() {
182	+	String regex = System.getProperty("jsr166.methodFilter");
183	+	return (regex == null) ? null : Pattern.compile(regex);
184	+	}
185	+
186		protected void runTest() throws Throwable {
187	<	if (profileTests)
188	<	runTestProfiled();
189	<	else
190	<	super.runTest();
187	>	if (methodFilter == null
188	>	|| methodFilter.matcher(toString()).find()) {
189	>	for (int i = 0; i < runsPerTest; i++) {
190	>	if (profileTests)
191	>	runTestProfiled();
192	>	else
193	>	super.runTest();
194	>	}
195	>	}
196		}
197
198		protected void runTestProfiled() throws Throwable {
199	+	// Warmup run, notably to trigger all needed classloading.
200	+	super.runTest();
201		long t0 = System.nanoTime();
202		try {
203		super.runTest();
204		} finally {
205	<	long elapsedMillis =
130	<	(System.nanoTime() - t0) / (1000L * 1000L);
205	>	long elapsedMillis = millisElapsedSince(t0);
206		if (elapsedMillis >= profileThreshold)
207		System.out.printf("%n%s: %d%n", toString(), elapsedMillis);
208		}
209		}
210
211		/**
212	<	* Runs all JSR166 unit tests using junit.textui.TestRunner
212	>	* Runs all JSR166 unit tests using junit.textui.TestRunner.
213		*/
214		public static void main(String[] args) {
215	+	main(suite(), args);
216	+	}
217	+
218	+	/**
219	+	* Runs all unit tests in the given test suite.
220	+	* Actual behavior influenced by jsr166.* system properties.
221	+	*/
222	+	static void main(Test suite, String[] args) {
223		if (useSecurityManager) {
224		System.err.println("Setting a permissive security manager");
225		Policy.setPolicy(permissivePolicy());
226		System.setSecurityManager(new SecurityManager());
227		}
228	<	int iters = (args.length == 0) ? 1 : Integer.parseInt(args[0]);
229	<
230	<	Test s = suite();
231	<	for (int i = 0; i < iters; ++i) {
149	<	junit.textui.TestRunner.run(s);
228	>	for (int i = 0; i < suiteRuns; i++) {
229	>	TestResult result = junit.textui.TestRunner.run(suite);
230	>	if (!result.wasSuccessful())
231	>	System.exit(1);
232		System.gc();
233		System.runFinalization();
234		}
153	–	System.exit(0);
235		}
236
237		public static TestSuite newTestSuite(Object... suiteOrClasses) {
#	Line 166 | Line 247 | public class JSR166TestCase extends Test
247		return suite;
248		}
249
250	+	public static void addNamedTestClasses(TestSuite suite,
251	+	String... testClassNames) {
252	+	for (String testClassName : testClassNames) {
253	+	try {
254	+	Class<?> testClass = Class.forName(testClassName);
255	+	Method m = testClass.getDeclaredMethod("suite",
256	+	new Class<?>[0]);
257	+	suite.addTest(newTestSuite((Test)m.invoke(null)));
258	+	} catch (Exception e) {
259	+	throw new Error("Missing test class", e);
260	+	}
261	+	}
262	+	}
263	+
264	+	public static final double JAVA_CLASS_VERSION;
265	+	public static final String JAVA_SPECIFICATION_VERSION;
266	+	static {
267	+	try {
268	+	JAVA_CLASS_VERSION = java.security.AccessController.doPrivileged(
269	+	new java.security.PrivilegedAction<Double>() {
270	+	public Double run() {
271	+	return Double.valueOf(System.getProperty("java.class.version"));}});
272	+	JAVA_SPECIFICATION_VERSION = java.security.AccessController.doPrivileged(
273	+	new java.security.PrivilegedAction<String>() {
274	+	public String run() {
275	+	return System.getProperty("java.specification.version");}});
276	+	} catch (Throwable t) {
277	+	throw new Error(t);
278	+	}
279	+	}
280	+
281	+	public static boolean atLeastJava6() { return JAVA_CLASS_VERSION >= 50.0; }
282	+	public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; }
283	+	public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; }
284	+	public static boolean atLeastJava9() {
285	+	return JAVA_CLASS_VERSION >= 53.0
286	+	// As of 2015-09, java9 still uses 52.0 class file version
287	+	|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?(9|[0-9][0-9])$");
288	+	}
289	+	public static boolean atLeastJava10() {
290	+	return JAVA_CLASS_VERSION >= 54.0
291	+	|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?[0-9][0-9]$");
292	+	}
293	+
294		/**
295		* Collects all JSR166 unit tests as one suite.
296		*/
297		public static Test suite() {
298	<	return newTestSuite(
298	>	// Java7+ test classes
299	>	TestSuite suite = newTestSuite(
300		ForkJoinPoolTest.suite(),
301		ForkJoinTaskTest.suite(),
302		RecursiveActionTest.suite(),
#	Line 235 | Line 361 | public class JSR166TestCase extends Test
361		TreeSetTest.suite(),
362		TreeSubMapTest.suite(),
363		TreeSubSetTest.suite());
364	+
365	+	// Java8+ test classes
366	+	if (atLeastJava8()) {
367	+	String[] java8TestClassNames = {
368	+	"Atomic8Test",
369	+	"CompletableFutureTest",
370	+	"ConcurrentHashMap8Test",
371	+	"CountedCompleterTest",
372	+	"DoubleAccumulatorTest",
373	+	"DoubleAdderTest",
374	+	"ForkJoinPool8Test",
375	+	"ForkJoinTask8Test",
376	+	"LongAccumulatorTest",
377	+	"LongAdderTest",
378	+	"SplittableRandomTest",
379	+	"StampedLockTest",
380	+	"ThreadLocalRandom8Test",
381	+	};
382	+	addNamedTestClasses(suite, java8TestClassNames);
383	+	}
384	+
385	+	// Java9+ test classes
386	+	if (atLeastJava9()) {
387	+	String[] java9TestClassNames = {
388	+	"ThreadPoolExecutor9Test",
389	+	};
390	+	addNamedTestClasses(suite, java9TestClassNames);
391	+	}
392	+
393	+	return suite;
394	+	}
395	+
396	+	/** Returns list of junit-style test method names in given class. */
397	+	public static ArrayList<String> testMethodNames(Class<?> testClass) {
398	+	Method[] methods = testClass.getDeclaredMethods();
399	+	ArrayList<String> names = new ArrayList<String>(methods.length);
400	+	for (Method method : methods) {
401	+	if (method.getName().startsWith("test")
402	+	&& Modifier.isPublic(method.getModifiers())
403	+	// method.getParameterCount() requires jdk8+
404	+	&& method.getParameterTypes().length == 0) {
405	+	names.add(method.getName());
406	+	}
407	+	}
408	+	return names;
409	+	}
410	+
411	+	/**
412	+	* Returns junit-style testSuite for the given test class, but
413	+	* parameterized by passing extra data to each test.
414	+	*/
415	+	public static <ExtraData> Test parameterizedTestSuite
416	+	(Class<? extends JSR166TestCase> testClass,
417	+	Class<ExtraData> dataClass,
418	+	ExtraData data) {
419	+	try {
420	+	TestSuite suite = new TestSuite();
421	+	Constructor c =
422	+	testClass.getDeclaredConstructor(dataClass, String.class);
423	+	for (String methodName : testMethodNames(testClass))
424	+	suite.addTest((Test) c.newInstance(data, methodName));
425	+	return suite;
426	+	} catch (Exception e) {
427	+	throw new Error(e);
428	+	}
429		}
430
431	+	/**
432	+	* Returns junit-style testSuite for the jdk8 extension of the
433	+	* given test class, but parameterized by passing extra data to
434	+	* each test.  Uses reflection to allow compilation in jdk7.
435	+	*/
436	+	public static <ExtraData> Test jdk8ParameterizedTestSuite
437	+	(Class<? extends JSR166TestCase> testClass,
438	+	Class<ExtraData> dataClass,
439	+	ExtraData data) {
440	+	if (atLeastJava8()) {
441	+	String name = testClass.getName();
442	+	String name8 = name.replaceAll("Test$", "8Test");
443	+	if (name.equals(name8)) throw new Error(name);
444	+	try {
445	+	return (Test)
446	+	Class.forName(name8)
447	+	.getMethod("testSuite", new Class[] { dataClass })
448	+	.invoke(null, data);
449	+	} catch (Exception e) {
450	+	throw new Error(e);
451	+	}
452	+	} else {
453	+	return new TestSuite();
454	+	}
455	+
456	+	}
457	+
458	+	// Delays for timing-dependent tests, in milliseconds.
459
460		public static long SHORT_DELAY_MS;
461		public static long SMALL_DELAY_MS;
462		public static long MEDIUM_DELAY_MS;
463		public static long LONG_DELAY_MS;
464
246	–
465		/**
466		* Returns the shortest timed delay. This could
467		* be reimplemented to use for example a Property.
#	Line 252 | Line 470 | public class JSR166TestCase extends Test
470		return 50;
471		}
472
255	–
473		/**
474		* Sets delays as multiples of SHORT_DELAY.
475		*/
#	Line 264 | Line 481 | public class JSR166TestCase extends Test
481		}
482
483		/**
484	+	* Returns a timeout in milliseconds to be used in tests that
485	+	* verify that operations block or time out.
486	+	*/
487	+	long timeoutMillis() {
488	+	return SHORT_DELAY_MS / 4;
489	+	}
490	+
491	+	/**
492	+	* Returns a new Date instance representing a time at least
493	+	* delayMillis milliseconds in the future.
494	+	*/
495	+	Date delayedDate(long delayMillis) {
496	+	// Add 1 because currentTimeMillis is known to round into the past.
497	+	return new Date(System.currentTimeMillis() + delayMillis + 1);
498	+	}
499	+
500	+	/**
501		* The first exception encountered if any threadAssertXXX method fails.
502		*/
503		private final AtomicReference<Throwable> threadFailure
#	Line 284 | Line 518 | public class JSR166TestCase extends Test
518		}
519
520		/**
521	+	* Extra checks that get done for all test cases.
522	+	*
523		* Triggers test case failure if any thread assertions have failed,
524		* by rethrowing, in the test harness thread, any exception recorded
525		* earlier by threadRecordFailure.
526	+	*
527	+	* Triggers test case failure if interrupt status is set in the main thread.
528		*/
529		public void tearDown() throws Exception {
530		Throwable t = threadFailure.getAndSet(null);
#	Line 304 | Line 542 | public class JSR166TestCase extends Test
542		throw afe;
543		}
544		}
545	+
546	+	if (Thread.interrupted())
547	+	throw new AssertionFailedError("interrupt status set in main thread");
548	+
549	+	checkForkJoinPoolThreadLeaks();
550	+	}
551	+
552	+	/**
553	+	* Finds missing try { ... } finally { joinPool(e); }
554	+	*/
555	+	void checkForkJoinPoolThreadLeaks() throws InterruptedException {
556	+	Thread[] survivors = new Thread[5];
557	+	int count = Thread.enumerate(survivors);
558	+	for (int i = 0; i < count; i++) {
559	+	Thread thread = survivors[i];
560	+	String name = thread.getName();
561	+	if (name.startsWith("ForkJoinPool-")) {
562	+	// give thread some time to terminate
563	+	thread.join(LONG_DELAY_MS);
564	+	if (!thread.isAlive()) continue;
565	+	throw new AssertionFailedError
566	+	(String.format("Found leaked ForkJoinPool thread test=%s thread=%s%n",
567	+	toString(), name));
568	+	}
569	+	}
570		}
571
572		/**
#	Line 384 | Line 647 | public class JSR166TestCase extends Test
647		public void threadAssertEquals(Object x, Object y) {
648		try {
649		assertEquals(x, y);
650	<	} catch (AssertionFailedError t) {
651	<	threadRecordFailure(t);
652	<	throw t;
653	<	} catch (Throwable t) {
654	<	threadUnexpectedException(t);
650	>	} catch (AssertionFailedError fail) {
651	>	threadRecordFailure(fail);
652	>	throw fail;
653	>	} catch (Throwable fail) {
654	>	threadUnexpectedException(fail);
655		}
656		}
657
#	Line 400 | Line 663 | public class JSR166TestCase extends Test
663		public void threadAssertSame(Object x, Object y) {
664		try {
665		assertSame(x, y);
666	<	} catch (AssertionFailedError t) {
667	<	threadRecordFailure(t);
668	<	throw t;
666	>	} catch (AssertionFailedError fail) {
667	>	threadRecordFailure(fail);
668	>	throw fail;
669		}
670		}
671
#	Line 435 | Line 698 | public class JSR166TestCase extends Test
698		else {
699		AssertionFailedError afe =
700		new AssertionFailedError("unexpected exception: " + t);
701	<	t.initCause(t);
701	>	afe.initCause(t);
702		throw afe;
703		}
704		}
705
706		/**
707	+	* Delays, via Thread.sleep, for the given millisecond delay, but
708	+	* if the sleep is shorter than specified, may re-sleep or yield
709	+	* until time elapses.
710	+	*/
711	+	static void delay(long millis) throws InterruptedException {
712	+	long startTime = System.nanoTime();
713	+	long ns = millis * 1000 * 1000;
714	+	for (;;) {
715	+	if (millis > 0L)
716	+	Thread.sleep(millis);
717	+	else // too short to sleep
718	+	Thread.yield();
719	+	long d = ns - (System.nanoTime() - startTime);
720	+	if (d > 0L)
721	+	millis = d / (1000 * 1000);
722	+	else
723	+	break;
724	+	}
725	+	}
726	+
727	+	/**
728		* Waits out termination of a thread pool or fails doing so.
729		*/
730	<	public void joinPool(ExecutorService exec) {
730	>	void joinPool(ExecutorService exec) {
731		try {
732		exec.shutdown();
733	<	assertTrue("ExecutorService did not terminate in a timely manner",
734	<	exec.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS));
733	>	if (!exec.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS))
734	>	fail("ExecutorService " + exec +
735	>	" did not terminate in a timely manner");
736		} catch (SecurityException ok) {
737		// Allowed in case test doesn't have privs
738	<	} catch (InterruptedException ie) {
738	>	} catch (InterruptedException fail) {
739	>	fail("Unexpected InterruptedException");
740	>	}
741	>	}
742	>
743	>	/**
744	>	* A debugging tool to print all stack traces, as jstack does.
745	>	*/
746	>	static void printAllStackTraces() {
747	>	for (ThreadInfo info :
748	>	ManagementFactory.getThreadMXBean()
749	>	.dumpAllThreads(true, true))
750	>	System.err.print(info);
751	>	}
752	>
753	>	/**
754	>	* Checks that thread does not terminate within the default
755	>	* millisecond delay of {@code timeoutMillis()}.
756	>	*/
757	>	void assertThreadStaysAlive(Thread thread) {
758	>	assertThreadStaysAlive(thread, timeoutMillis());
759	>	}
760	>
761	>	/**
762	>	* Checks that thread does not terminate within the given millisecond delay.
763	>	*/
764	>	void assertThreadStaysAlive(Thread thread, long millis) {
765	>	try {
766	>	// No need to optimize the failing case via Thread.join.
767	>	delay(millis);
768	>	assertTrue(thread.isAlive());
769	>	} catch (InterruptedException fail) {
770		fail("Unexpected InterruptedException");
771		}
772		}
773
774	+	/**
775	+	* Checks that the threads do not terminate within the default
776	+	* millisecond delay of {@code timeoutMillis()}.
777	+	*/
778	+	void assertThreadsStayAlive(Thread... threads) {
779	+	assertThreadsStayAlive(timeoutMillis(), threads);
780	+	}
781	+
782	+	/**
783	+	* Checks that the threads do not terminate within the given millisecond delay.
784	+	*/
785	+	void assertThreadsStayAlive(long millis, Thread... threads) {
786	+	try {
787	+	// No need to optimize the failing case via Thread.join.
788	+	delay(millis);
789	+	for (Thread thread : threads)
790	+	assertTrue(thread.isAlive());
791	+	} catch (InterruptedException fail) {
792	+	fail("Unexpected InterruptedException");
793	+	}
794	+	}
795	+
796	+	/**
797	+	* Checks that future.get times out, with the default timeout of
798	+	* {@code timeoutMillis()}.
799	+	*/
800	+	void assertFutureTimesOut(Future future) {
801	+	assertFutureTimesOut(future, timeoutMillis());
802	+	}
803	+
804	+	/**
805	+	* Checks that future.get times out, with the given millisecond timeout.
806	+	*/
807	+	void assertFutureTimesOut(Future future, long timeoutMillis) {
808	+	long startTime = System.nanoTime();
809	+	try {
810	+	future.get(timeoutMillis, MILLISECONDS);
811	+	shouldThrow();
812	+	} catch (TimeoutException success) {
813	+	} catch (Exception fail) {
814	+	threadUnexpectedException(fail);
815	+	} finally { future.cancel(true); }
816	+	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
817	+	}
818
819		/**
820		* Fails with message "should throw exception".
#	Line 495 | Line 855 | public class JSR166TestCase extends Test
855		public static final Integer m6  = new Integer(-6);
856		public static final Integer m10 = new Integer(-10);
857
498	–
858		/**
859		* Runs Runnable r with a security policy that permits precisely
860		* the specified permissions.  If there is no current security
#	Line 507 | Line 866 | public class JSR166TestCase extends Test
866		SecurityManager sm = System.getSecurityManager();
867		if (sm == null) {
868		r.run();
869	+	}
870	+	runWithSecurityManagerWithPermissions(r, permissions);
871	+	}
872	+
873	+	/**
874	+	* Runs Runnable r with a security policy that permits precisely
875	+	* the specified permissions.  If there is no current security
876	+	* manager, a temporary one is set for the duration of the
877	+	* Runnable.  We require that any security manager permit
878	+	* getPolicy/setPolicy.
879	+	*/
880	+	public void runWithSecurityManagerWithPermissions(Runnable r,
881	+	Permission... permissions) {
882	+	SecurityManager sm = System.getSecurityManager();
883	+	if (sm == null) {
884		Policy savedPolicy = Policy.getPolicy();
885		try {
886		Policy.setPolicy(permissivePolicy());
887		System.setSecurityManager(new SecurityManager());
888	<	runWithPermissions(r, permissions);
888	>	runWithSecurityManagerWithPermissions(r, permissions);
889		} finally {
890		System.setSecurityManager(null);
891		Policy.setPolicy(savedPolicy);
#	Line 559 | Line 933 | public class JSR166TestCase extends Test
933		return perms.implies(p);
934		}
935		public void refresh() {}
936	+	public String toString() {
937	+	List<Permission> ps = new ArrayList<Permission>();
938	+	for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
939	+	ps.add(e.nextElement());
940	+	return "AdjustablePolicy with permissions " + ps;
941	+	}
942		}
943
944		/**
#	Line 586 | Line 966 | public class JSR166TestCase extends Test
966		*/
967		void sleep(long millis) {
968		try {
969	<	Thread.sleep(millis);
970	<	} catch (InterruptedException ie) {
969	>	delay(millis);
970	>	} catch (InterruptedException fail) {
971		AssertionFailedError afe =
972		new AssertionFailedError("Unexpected InterruptedException");
973	<	afe.initCause(ie);
973	>	afe.initCause(fail);
974		throw afe;
975		}
976		}
977
978		/**
979	<	* 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
979	>	* Spin-waits up to the specified number of milliseconds for the given
980		* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
981		*/
982		void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
983	<	long timeoutNanos = timeoutMillis * 1000L * 1000L;
614	<	long t0 = System.nanoTime();
983	>	long startTime = System.nanoTime();
984		for (;;) {
985		Thread.State s = thread.getState();
986		if (s == Thread.State.BLOCKED ||
#	Line 620 | Line 989 | public class JSR166TestCase extends Test
989		return;
990		else if (s == Thread.State.TERMINATED)
991		fail("Unexpected thread termination");
992	<	else if (System.nanoTime() - t0 > timeoutNanos) {
992	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
993		threadAssertTrue(thread.isAlive());
994		return;
995		}
#	Line 629 | Line 998 | public class JSR166TestCase extends Test
998		}
999
1000		/**
1001	+	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
1002	+	* state: BLOCKED, WAITING, or TIMED_WAITING.
1003	+	*/
1004	+	void waitForThreadToEnterWaitState(Thread thread) {
1005	+	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
1006	+	}
1007	+
1008	+	/**
1009		* Returns the number of milliseconds since time given by
1010		* startNanoTime, which must have been previously returned from a
1011	<	* call to {@link System.nanoTime()}.
1011	>	* call to {@link System#nanoTime()}.
1012		*/
1013	<	long millisElapsedSince(long startNanoTime) {
1013	>	static long millisElapsedSince(long startNanoTime) {
1014		return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
1015		}
1016
1017	+	//     void assertTerminatesPromptly(long timeoutMillis, Runnable r) {
1018	+	//         long startTime = System.nanoTime();
1019	+	//         try {
1020	+	//             r.run();
1021	+	//         } catch (Throwable fail) { threadUnexpectedException(fail); }
1022	+	//         if (millisElapsedSince(startTime) > timeoutMillis/2)
1023	+	//             throw new AssertionFailedError("did not return promptly");
1024	+	//     }
1025	+
1026	+	//     void assertTerminatesPromptly(Runnable r) {
1027	+	//         assertTerminatesPromptly(LONG_DELAY_MS/2, r);
1028	+	//     }
1029	+
1030	+	/**
1031	+	* Checks that timed f.get() returns the expected value, and does not
1032	+	* wait for the timeout to elapse before returning.
1033	+	*/
1034	+	<T> void checkTimedGet(Future<T> f, T expectedValue, long timeoutMillis) {
1035	+	long startTime = System.nanoTime();
1036	+	try {
1037	+	assertEquals(expectedValue, f.get(timeoutMillis, MILLISECONDS));
1038	+	} catch (Throwable fail) { threadUnexpectedException(fail); }
1039	+	if (millisElapsedSince(startTime) > timeoutMillis/2)
1040	+	throw new AssertionFailedError("timed get did not return promptly");
1041	+	}
1042	+
1043	+	<T> void checkTimedGet(Future<T> f, T expectedValue) {
1044	+	checkTimedGet(f, expectedValue, LONG_DELAY_MS);
1045	+	}
1046	+
1047		/**
1048		* Returns a new started daemon Thread running the given runnable.
1049		*/
#	Line 655 | Line 1062 | public class JSR166TestCase extends Test
1062		void awaitTermination(Thread t, long timeoutMillis) {
1063		try {
1064		t.join(timeoutMillis);
1065	<	} catch (InterruptedException ie) {
1066	<	threadUnexpectedException(ie);
1065	>	} catch (InterruptedException fail) {
1066	>	threadUnexpectedException(fail);
1067		} finally {
1068	<	if (t.isAlive()) {
1068	>	if (t.getState() != Thread.State.TERMINATED) {
1069		t.interrupt();
1070		fail("Test timed out");
1071		}
1072		}
1073		}
1074
1075	+	/**
1076	+	* Waits for LONG_DELAY_MS milliseconds for the thread to
1077	+	* terminate (using {@link Thread#join(long)}), else interrupts
1078	+	* the thread (in the hope that it may terminate later) and fails.
1079	+	*/
1080	+	void awaitTermination(Thread t) {
1081	+	awaitTermination(t, LONG_DELAY_MS);
1082	+	}
1083	+
1084		// Some convenient Runnable classes
1085
1086		public abstract class CheckedRunnable implements Runnable {
#	Line 673 | Line 1089 | public class JSR166TestCase extends Test
1089		public final void run() {
1090		try {
1091		realRun();
1092	<	} catch (Throwable t) {
1093	<	threadUnexpectedException(t);
1092	>	} catch (Throwable fail) {
1093	>	threadUnexpectedException(fail);
1094		}
1095		}
1096		}
#	Line 727 | Line 1143 | public class JSR166TestCase extends Test
1143		realRun();
1144		threadShouldThrow("InterruptedException");
1145		} catch (InterruptedException success) {
1146	<	} catch (Throwable t) {
1147	<	threadUnexpectedException(t);
1146	>	threadAssertFalse(Thread.interrupted());
1147	>	} catch (Throwable fail) {
1148	>	threadUnexpectedException(fail);
1149		}
1150		}
1151		}
#	Line 739 | Line 1156 | public class JSR166TestCase extends Test
1156		public final T call() {
1157		try {
1158		return realCall();
1159	<	} catch (Throwable t) {
1160	<	threadUnexpectedException(t);
1159	>	} catch (Throwable fail) {
1160	>	threadUnexpectedException(fail);
1161		return null;
1162		}
1163		}
#	Line 756 | Line 1173 | public class JSR166TestCase extends Test
1173		threadShouldThrow("InterruptedException");
1174		return result;
1175		} catch (InterruptedException success) {
1176	<	} catch (Throwable t) {
1177	<	threadUnexpectedException(t);
1176	>	threadAssertFalse(Thread.interrupted());
1177	>	} catch (Throwable fail) {
1178	>	threadUnexpectedException(fail);
1179		}
1180		return null;
1181		}
#	Line 787 | Line 1205 | public class JSR166TestCase extends Test
1205		}};
1206		}
1207
1208	+	public Runnable awaiter(final CountDownLatch latch) {
1209	+	return new CheckedRunnable() {
1210	+	public void realRun() throws InterruptedException {
1211	+	await(latch);
1212	+	}};
1213	+	}
1214	+
1215	+	public void await(CountDownLatch latch) {
1216	+	try {
1217	+	assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS));
1218	+	} catch (Throwable fail) {
1219	+	threadUnexpectedException(fail);
1220	+	}
1221	+	}
1222	+
1223	+	public void await(Semaphore semaphore) {
1224	+	try {
1225	+	assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS));
1226	+	} catch (Throwable fail) {
1227	+	threadUnexpectedException(fail);
1228	+	}
1229	+	}
1230	+
1231	+	//     /**
1232	+	//      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
1233	+	//      */
1234	+	//     public void await(AtomicBoolean flag) {
1235	+	//         await(flag, LONG_DELAY_MS);
1236	+	//     }
1237	+
1238	+	//     /**
1239	+	//      * Spin-waits up to the specified timeout until flag becomes true.
1240	+	//      */
1241	+	//     public void await(AtomicBoolean flag, long timeoutMillis) {
1242	+	//         long startTime = System.nanoTime();
1243	+	//         while (!flag.get()) {
1244	+	//             if (millisElapsedSince(startTime) > timeoutMillis)
1245	+	//                 throw new AssertionFailedError("timed out");
1246	+	//             Thread.yield();
1247	+	//         }
1248	+	//     }
1249	+
1250		public static class NPETask implements Callable<String> {
1251		public String call() { throw new NullPointerException(); }
1252		}
#	Line 797 | Line 1257 | public class JSR166TestCase extends Test
1257
1258		public class ShortRunnable extends CheckedRunnable {
1259		protected void realRun() throws Throwable {
1260	<	Thread.sleep(SHORT_DELAY_MS);
1260	>	delay(SHORT_DELAY_MS);
1261		}
1262		}
1263
1264		public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1265		protected void realRun() throws InterruptedException {
1266	<	Thread.sleep(SHORT_DELAY_MS);
1266	>	delay(SHORT_DELAY_MS);
1267		}
1268		}
1269
1270		public class SmallRunnable extends CheckedRunnable {
1271		protected void realRun() throws Throwable {
1272	<	Thread.sleep(SMALL_DELAY_MS);
1272	>	delay(SMALL_DELAY_MS);
1273		}
1274		}
1275
1276		public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1277		protected void realRun() {
1278		try {
1279	<	Thread.sleep(SMALL_DELAY_MS);
1279	>	delay(SMALL_DELAY_MS);
1280		} catch (InterruptedException ok) {}
1281		}
1282		}
1283
1284		public class SmallCallable extends CheckedCallable {
1285		protected Object realCall() throws InterruptedException {
1286	<	Thread.sleep(SMALL_DELAY_MS);
1286	>	delay(SMALL_DELAY_MS);
1287		return Boolean.TRUE;
1288		}
1289		}
1290
1291		public class MediumRunnable extends CheckedRunnable {
1292		protected void realRun() throws Throwable {
1293	<	Thread.sleep(MEDIUM_DELAY_MS);
1293	>	delay(MEDIUM_DELAY_MS);
1294		}
1295		}
1296
1297		public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1298		protected void realRun() throws InterruptedException {
1299	<	Thread.sleep(MEDIUM_DELAY_MS);
1299	>	delay(MEDIUM_DELAY_MS);
1300		}
1301		}
1302
#	Line 844 | Line 1304 | public class JSR166TestCase extends Test
1304		return new CheckedRunnable() {
1305		protected void realRun() {
1306		try {
1307	<	Thread.sleep(timeoutMillis);
1307	>	delay(timeoutMillis);
1308		} catch (InterruptedException ok) {}
1309		}};
1310		}
#	Line 852 | Line 1312 | public class JSR166TestCase extends Test
1312		public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1313		protected void realRun() {
1314		try {
1315	<	Thread.sleep(MEDIUM_DELAY_MS);
1315	>	delay(MEDIUM_DELAY_MS);
1316		} catch (InterruptedException ok) {}
1317		}
1318		}
#	Line 860 | Line 1320 | public class JSR166TestCase extends Test
1320		public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1321		protected void realRun() {
1322		try {
1323	<	Thread.sleep(LONG_DELAY_MS);
1323	>	delay(LONG_DELAY_MS);
1324		} catch (InterruptedException ok) {}
1325		}
1326		}
#	Line 884 | Line 1344 | public class JSR166TestCase extends Test
1344		public boolean isDone() { return done; }
1345		public void run() {
1346		try {
1347	<	Thread.sleep(timeoutMillis);
1347	>	delay(timeoutMillis);
1348		done = true;
1349		} catch (InterruptedException ok) {}
1350		}
#	Line 895 | Line 1355 | public class JSR166TestCase extends Test
1355		public volatile boolean done = false;
1356		public void run() {
1357		try {
1358	<	Thread.sleep(SHORT_DELAY_MS);
1358	>	delay(SHORT_DELAY_MS);
1359		done = true;
1360		} catch (InterruptedException ok) {}
1361		}
#	Line 905 | Line 1365 | public class JSR166TestCase extends Test
1365		public volatile boolean done = false;
1366		public void run() {
1367		try {
1368	<	Thread.sleep(SMALL_DELAY_MS);
1368	>	delay(SMALL_DELAY_MS);
1369		done = true;
1370		} catch (InterruptedException ok) {}
1371		}
#	Line 915 | Line 1375 | public class JSR166TestCase extends Test
1375		public volatile boolean done = false;
1376		public void run() {
1377		try {
1378	<	Thread.sleep(MEDIUM_DELAY_MS);
1378	>	delay(MEDIUM_DELAY_MS);
1379		done = true;
1380		} catch (InterruptedException ok) {}
1381		}
#	Line 925 | Line 1385 | public class JSR166TestCase extends Test
1385		public volatile boolean done = false;
1386		public void run() {
1387		try {
1388	<	Thread.sleep(LONG_DELAY_MS);
1388	>	delay(LONG_DELAY_MS);
1389		done = true;
1390		} catch (InterruptedException ok) {}
1391		}
#	Line 942 | Line 1402 | public class JSR166TestCase extends Test
1402		public volatile boolean done = false;
1403		public Object call() {
1404		try {
1405	<	Thread.sleep(SMALL_DELAY_MS);
1405	>	delay(SMALL_DELAY_MS);
1406		done = true;
1407		} catch (InterruptedException ok) {}
1408		return Boolean.TRUE;
#	Line 955 | Line 1415 | public class JSR166TestCase extends Test
1415		public abstract class CheckedRecursiveAction extends RecursiveAction {
1416		protected abstract void realCompute() throws Throwable;
1417
1418	<	public final void compute() {
1418	>	@Override protected final void compute() {
1419		try {
1420		realCompute();
1421	<	} catch (Throwable t) {
1422	<	threadUnexpectedException(t);
1421	>	} catch (Throwable fail) {
1422	>	threadUnexpectedException(fail);
1423		}
1424		}
1425		}
#	Line 970 | Line 1430 | public class JSR166TestCase extends Test
1430		public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
1431		protected abstract T realCompute() throws Throwable;
1432
1433	<	public final T compute() {
1433	>	@Override protected final T compute() {
1434		try {
1435		return realCompute();
1436	<	} catch (Throwable t) {
1437	<	threadUnexpectedException(t);
1436	>	} catch (Throwable fail) {
1437	>	threadUnexpectedException(fail);
1438		return null;
1439		}
1440		}
#	Line 989 | Line 1449 | public class JSR166TestCase extends Test
1449		}
1450
1451		/**
1452	<	* A CyclicBarrier that fails with AssertionFailedErrors instead
1453	<	* of throwing checked exceptions.
1452	>	* A CyclicBarrier that uses timed await and fails with
1453	>	* AssertionFailedErrors instead of throwing checked exceptions.
1454		*/
1455		public class CheckedBarrier extends CyclicBarrier {
1456		public CheckedBarrier(int parties) { super(parties); }
1457
1458		public int await() {
1459		try {
1460	<	return super.await();
1461	<	} catch (Exception e) {
1460	>	return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1461	>	} catch (TimeoutException timedOut) {
1462	>	throw new AssertionFailedError("timed out");
1463	>	} catch (Exception fail) {
1464		AssertionFailedError afe =
1465	<	new AssertionFailedError("Unexpected exception: " + e);
1466	<	afe.initCause(e);
1465	>	new AssertionFailedError("Unexpected exception: " + fail);
1466	>	afe.initCause(fail);
1467		throw afe;
1468		}
1469		}
1470		}
1471
1472	+	void checkEmpty(BlockingQueue q) {
1473	+	try {
1474	+	assertTrue(q.isEmpty());
1475	+	assertEquals(0, q.size());
1476	+	assertNull(q.peek());
1477	+	assertNull(q.poll());
1478	+	assertNull(q.poll(0, MILLISECONDS));
1479	+	assertEquals(q.toString(), "[]");
1480	+	assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1481	+	assertFalse(q.iterator().hasNext());
1482	+	try {
1483	+	q.element();
1484	+	shouldThrow();
1485	+	} catch (NoSuchElementException success) {}
1486	+	try {
1487	+	q.iterator().next();
1488	+	shouldThrow();
1489	+	} catch (NoSuchElementException success) {}
1490	+	try {
1491	+	q.remove();
1492	+	shouldThrow();
1493	+	} catch (NoSuchElementException success) {}
1494	+	} catch (InterruptedException fail) { threadUnexpectedException(fail); }
1495	+	}
1496	+
1497	+	void assertSerialEquals(Object x, Object y) {
1498	+	assertTrue(Arrays.equals(serialBytes(x), serialBytes(y)));
1499	+	}
1500	+
1501	+	void assertNotSerialEquals(Object x, Object y) {
1502	+	assertFalse(Arrays.equals(serialBytes(x), serialBytes(y)));
1503	+	}
1504	+
1505	+	byte[] serialBytes(Object o) {
1506	+	try {
1507	+	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1508	+	ObjectOutputStream oos = new ObjectOutputStream(bos);
1509	+	oos.writeObject(o);
1510	+	oos.flush();
1511	+	oos.close();
1512	+	return bos.toByteArray();
1513	+	} catch (Throwable fail) {
1514	+	threadUnexpectedException(fail);
1515	+	return new byte[0];
1516	+	}
1517	+	}
1518	+
1519	+	@SuppressWarnings("unchecked")
1520	+	<T> T serialClone(T o) {
1521	+	try {
1522	+	ObjectInputStream ois = new ObjectInputStream
1523	+	(new ByteArrayInputStream(serialBytes(o)));
1524	+	T clone = (T) ois.readObject();
1525	+	assertSame(o.getClass(), clone.getClass());
1526	+	return clone;
1527	+	} catch (Throwable fail) {
1528	+	threadUnexpectedException(fail);
1529	+	return null;
1530	+	}
1531	+	}
1532	+
1533	+	public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1534	+	Runnable... throwingActions) {
1535	+	for (Runnable throwingAction : throwingActions) {
1536	+	boolean threw = false;
1537	+	try { throwingAction.run(); }
1538	+	catch (Throwable t) {
1539	+	threw = true;
1540	+	if (!expectedExceptionClass.isInstance(t)) {
1541	+	AssertionFailedError afe =
1542	+	new AssertionFailedError
1543	+	("Expected " + expectedExceptionClass.getName() +
1544	+	", got " + t.getClass().getName());
1545	+	afe.initCause(t);
1546	+	threadUnexpectedException(afe);
1547	+	}
1548	+	}
1549	+	if (!threw)
1550	+	shouldThrow(expectedExceptionClass.getName());
1551	+	}
1552	+	}
1553	+
1554	+	public void assertIteratorExhausted(Iterator<?> it) {
1555	+	try {
1556	+	it.next();
1557	+	shouldThrow();
1558	+	} catch (NoSuchElementException success) {}
1559	+	assertFalse(it.hasNext());
1560	+	}
1561		}

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