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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.76 by dl, Fri May 6 11:22:07 2011 UTC vs.
Revision 1.102 by jsr166, Wed Feb 6 19:55:06 2013 UTC

#	Line 7 | Line 7
7		*/
8
9		import junit.framework.*;
10	+	import java.io.ByteArrayInputStream;
11	+	import java.io.ByteArrayOutputStream;
12	+	import java.io.ObjectInputStream;
13	+	import java.io.ObjectOutputStream;
14	+	import java.lang.management.ManagementFactory;
15	+	import java.lang.management.ThreadInfo;
16	+	import java.lang.reflect.Method;
17	+	import java.util.ArrayList;
18		import java.util.Arrays;
19	+	import java.util.Date;
20	+	import java.util.Enumeration;
21	+	import java.util.List;
22		import java.util.NoSuchElementException;
23		import java.util.PropertyPermission;
24		import java.util.concurrent.*;
25	+	import java.util.concurrent.atomic.AtomicBoolean;
26		import java.util.concurrent.atomic.AtomicReference;
27		import static java.util.concurrent.TimeUnit.MILLISECONDS;
28		import static java.util.concurrent.TimeUnit.NANOSECONDS;
#	Line 63 | 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 136 | Line 148 | public class JSR166TestCase extends Test
148		}
149
150		/**
151	<	* Runs all JSR166 unit tests using junit.textui.TestRunner
151	>	* Runs all JSR166 unit tests using junit.textui.TestRunner.
152	>	* Optional command line arg provides the number of iterations to
153	>	* repeat running the tests.
154		*/
155		public static void main(String[] args) {
156		if (useSecurityManager) {
#	Line 168 | Line 182 | public class JSR166TestCase extends Test
182		return suite;
183		}
184
185	+	public static void addNamedTestClasses(TestSuite suite,
186	+	String... testClassNames) {
187	+	for (String testClassName : testClassNames) {
188	+	try {
189	+	Class<?> testClass = Class.forName(testClassName);
190	+	Method m = testClass.getDeclaredMethod("suite",
191	+	new Class<?>[0]);
192	+	suite.addTest(newTestSuite((Test)m.invoke(null)));
193	+	} catch (Exception e) {
194	+	throw new Error("Missing test class", e);
195	+	}
196	+	}
197	+	}
198	+
199	+	public static final double JAVA_CLASS_VERSION;
200	+	static {
201	+	try {
202	+	JAVA_CLASS_VERSION = java.security.AccessController.doPrivileged(
203	+	new java.security.PrivilegedAction<Double>() {
204	+	public Double run() {
205	+	return Double.valueOf(System.getProperty("java.class.version"));}});
206	+	} catch (Throwable t) {
207	+	throw new Error(t);
208	+	}
209	+	}
210	+
211	+	public static boolean atLeastJava6() { return JAVA_CLASS_VERSION >= 50.0; }
212	+	public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; }
213	+	public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; }
214	+
215		/**
216		* Collects all JSR166 unit tests as one suite.
217		*/
218		public static Test suite() {
219	<	return newTestSuite(
219	>	// Java7+ test classes
220	>	TestSuite suite = newTestSuite(
221		ForkJoinPoolTest.suite(),
222		ForkJoinTaskTest.suite(),
223		RecursiveActionTest.suite(),
#	Line 237 | Line 282 | public class JSR166TestCase extends Test
282		TreeSetTest.suite(),
283		TreeSubMapTest.suite(),
284		TreeSubSetTest.suite());
285	+
286	+	// Java8+ test classes
287	+	if (atLeastJava8()) {
288	+	String[] java8TestClassNames = {
289	+	"CompletableFutureTest",
290	+	"ForkJoinPool8Test",
291	+	"StampedLockTest",
292	+	};
293	+	addNamedTestClasses(suite, java8TestClassNames);
294	+	}
295	+
296	+	return suite;
297		}
298
299
#	Line 254 | Line 311 | public class JSR166TestCase extends Test
311		return 50;
312		}
313
257	–
314		/**
315		* Sets delays as multiples of SHORT_DELAY.
316		*/
#	Line 266 | Line 322 | public class JSR166TestCase extends Test
322		}
323
324		/**
325	+	* Returns a timeout in milliseconds to be used in tests that
326	+	* verify that operations block or time out.
327	+	*/
328	+	long timeoutMillis() {
329	+	return SHORT_DELAY_MS / 4;
330	+	}
331	+
332	+	/**
333	+	* Returns a new Date instance representing a time delayMillis
334	+	* milliseconds in the future.
335	+	*/
336	+	Date delayedDate(long delayMillis) {
337	+	return new Date(System.currentTimeMillis() + delayMillis);
338	+	}
339	+
340	+	/**
341		* The first exception encountered if any threadAssertXXX method fails.
342		*/
343		private final AtomicReference<Throwable> threadFailure
#	Line 286 | Line 358 | public class JSR166TestCase extends Test
358		}
359
360		/**
361	+	* Extra checks that get done for all test cases.
362	+	*
363		* Triggers test case failure if any thread assertions have failed,
364		* by rethrowing, in the test harness thread, any exception recorded
365		* earlier by threadRecordFailure.
366	+	*
367	+	* Triggers test case failure if interrupt status is set in the main thread.
368		*/
369		public void tearDown() throws Exception {
370		Throwable t = threadFailure.getAndSet(null);
#	Line 306 | Line 382 | public class JSR166TestCase extends Test
382		throw afe;
383		}
384		}
385	+
386	+	if (Thread.interrupted())
387	+	throw new AssertionFailedError("interrupt status set in main thread");
388	+
389	+	checkForkJoinPoolThreadLeaks();
390	+	}
391	+
392	+	/**
393	+	* Find missing try { ... } finally { joinPool(e); }
394	+	*/
395	+	void checkForkJoinPoolThreadLeaks() throws InterruptedException {
396	+	Thread[] survivors = new Thread[5];
397	+	int count = Thread.enumerate(survivors);
398	+	for (int i = 0; i < count; i++) {
399	+	Thread thread = survivors[i];
400	+	String name = thread.getName();
401	+	if (name.startsWith("ForkJoinPool-")) {
402	+	// give thread some time to terminate
403	+	thread.join(LONG_DELAY_MS);
404	+	if (!thread.isAlive()) continue;
405	+	thread.stop();
406	+	throw new AssertionFailedError
407	+	(String.format("Found leaked ForkJoinPool thread test=%s thread=%s%n",
408	+	toString(), name));
409	+	}
410	+	}
411		}
412
413		/**
#	Line 437 | Line 539 | public class JSR166TestCase extends Test
539		else {
540		AssertionFailedError afe =
541		new AssertionFailedError("unexpected exception: " + t);
542	<	t.initCause(t);
542	>	afe.initCause(t);
543		throw afe;
544		}
545		}
546
547		/**
548	<	* Delays, via Thread.sleep for the given millisecond delay, but
548	>	* Delays, via Thread.sleep, for the given millisecond delay, but
549		* if the sleep is shorter than specified, may re-sleep or yield
550		* until time elapses.
551		*/
552	<	public static void delay(long ms) throws InterruptedException {
552	>	static void delay(long millis) throws InterruptedException {
553		long startTime = System.nanoTime();
554	<	long ns = ms * 1000 * 1000;
554	>	long ns = millis * 1000 * 1000;
555		for (;;) {
556	<	if (ms > 0L)
557	<	Thread.sleep(ms);
556	>	if (millis > 0L)
557	>	Thread.sleep(millis);
558		else // too short to sleep
559		Thread.yield();
560		long d = ns - (System.nanoTime() - startTime);
561		if (d > 0L)
562	<	ms = d / (1000 * 1000);
562	>	millis = d / (1000 * 1000);
563		else
564		break;
565		}
#	Line 466 | Line 568 | public class JSR166TestCase extends Test
568		/**
569		* Waits out termination of a thread pool or fails doing so.
570		*/
571	<	public void joinPool(ExecutorService exec) {
571	>	void joinPool(ExecutorService exec) {
572		try {
573		exec.shutdown();
574		assertTrue("ExecutorService did not terminate in a timely manner",
#	Line 478 | Line 580 | public class JSR166TestCase extends Test
580		}
581		}
582
583	+	/**
584	+	* A debugging tool to print all stack traces, as jstack does.
585	+	*/
586	+	static void printAllStackTraces() {
587	+	for (ThreadInfo info :
588	+	ManagementFactory.getThreadMXBean()
589	+	.dumpAllThreads(true, true))
590	+	System.err.print(info);
591	+	}
592	+
593	+	/**
594	+	* Checks that thread does not terminate within the default
595	+	* millisecond delay of {@code timeoutMillis()}.
596	+	*/
597	+	void assertThreadStaysAlive(Thread thread) {
598	+	assertThreadStaysAlive(thread, timeoutMillis());
599	+	}
600	+
601	+	/**
602	+	* Checks that thread does not terminate within the given millisecond delay.
603	+	*/
604	+	void assertThreadStaysAlive(Thread thread, long millis) {
605	+	try {
606	+	// No need to optimize the failing case via Thread.join.
607	+	delay(millis);
608	+	assertTrue(thread.isAlive());
609	+	} catch (InterruptedException ie) {
610	+	fail("Unexpected InterruptedException");
611	+	}
612	+	}
613	+
614	+	/**
615	+	* Checks that the threads do not terminate within the default
616	+	* millisecond delay of {@code timeoutMillis()}.
617	+	*/
618	+	void assertThreadsStayAlive(Thread... threads) {
619	+	assertThreadsStayAlive(timeoutMillis(), threads);
620	+	}
621	+
622	+	/**
623	+	* Checks that the threads do not terminate within the given millisecond delay.
624	+	*/
625	+	void assertThreadsStayAlive(long millis, Thread... threads) {
626	+	try {
627	+	// No need to optimize the failing case via Thread.join.
628	+	delay(millis);
629	+	for (Thread thread : threads)
630	+	assertTrue(thread.isAlive());
631	+	} catch (InterruptedException ie) {
632	+	fail("Unexpected InterruptedException");
633	+	}
634	+	}
635	+
636	+	/**
637	+	* Checks that future.get times out, with the default timeout of
638	+	* {@code timeoutMillis()}.
639	+	*/
640	+	void assertFutureTimesOut(Future future) {
641	+	assertFutureTimesOut(future, timeoutMillis());
642	+	}
643	+
644	+	/**
645	+	* Checks that future.get times out, with the given millisecond timeout.
646	+	*/
647	+	void assertFutureTimesOut(Future future, long timeoutMillis) {
648	+	long startTime = System.nanoTime();
649	+	try {
650	+	future.get(timeoutMillis, MILLISECONDS);
651	+	shouldThrow();
652	+	} catch (TimeoutException success) {
653	+	} catch (Exception e) {
654	+	threadUnexpectedException(e);
655	+	} finally { future.cancel(true); }
656	+	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
657	+	}
658
659		/**
660		* Fails with message "should throw exception".
#	Line 530 | Line 707 | public class JSR166TestCase extends Test
707		SecurityManager sm = System.getSecurityManager();
708		if (sm == null) {
709		r.run();
710	+	}
711	+	runWithSecurityManagerWithPermissions(r, permissions);
712	+	}
713	+
714	+	/**
715	+	* Runs Runnable r with a security policy that permits precisely
716	+	* the specified permissions.  If there is no current security
717	+	* manager, a temporary one is set for the duration of the
718	+	* Runnable.  We require that any security manager permit
719	+	* getPolicy/setPolicy.
720	+	*/
721	+	public void runWithSecurityManagerWithPermissions(Runnable r,
722	+	Permission... permissions) {
723	+	SecurityManager sm = System.getSecurityManager();
724	+	if (sm == null) {
725		Policy savedPolicy = Policy.getPolicy();
726		try {
727		Policy.setPolicy(permissivePolicy());
728		System.setSecurityManager(new SecurityManager());
729	<	runWithPermissions(r, permissions);
729	>	runWithSecurityManagerWithPermissions(r, permissions);
730		} finally {
731		System.setSecurityManager(null);
732		Policy.setPolicy(savedPolicy);
#	Line 582 | Line 774 | public class JSR166TestCase extends Test
774		return perms.implies(p);
775		}
776		public void refresh() {}
777	+	public String toString() {
778	+	List<Permission> ps = new ArrayList<Permission>();
779	+	for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
780	+	ps.add(e.nextElement());
781	+	return "AdjustablePolicy with permissions " + ps;
782	+	}
783		}
784
785		/**
#	Line 619 | Line 817 | public class JSR166TestCase extends Test
817		}
818
819		/**
820	<	* Sleeps until the timeout has elapsed, or interrupted.
623	<	* Does <em>NOT</em> throw InterruptedException.
624	<	*/
625	<	void sleepTillInterrupted(long timeoutMillis) {
626	<	try {
627	<	Thread.sleep(timeoutMillis);
628	<	} catch (InterruptedException wakeup) {}
629	<	}
630	<
631	<	/**
632	<	* Waits up to the specified number of milliseconds for the given
820	>	* Spin-waits up to the specified number of milliseconds for the given
821		* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
822		*/
823		void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
824	<	long timeoutNanos = timeoutMillis * 1000L * 1000L;
637	<	long t0 = System.nanoTime();
824	>	long startTime = System.nanoTime();
825		for (;;) {
826		Thread.State s = thread.getState();
827		if (s == Thread.State.BLOCKED ||
#	Line 643 | Line 830 | public class JSR166TestCase extends Test
830		return;
831		else if (s == Thread.State.TERMINATED)
832		fail("Unexpected thread termination");
833	<	else if (System.nanoTime() - t0 > timeoutNanos) {
833	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
834		threadAssertTrue(thread.isAlive());
835		return;
836		}
#	Line 689 | Line 876 | public class JSR166TestCase extends Test
876		} catch (InterruptedException ie) {
877		threadUnexpectedException(ie);
878		} finally {
879	<	if (t.isAlive()) {
879	>	if (t.getState() != Thread.State.TERMINATED) {
880		t.interrupt();
881		fail("Test timed out");
882		}
#	Line 767 | Line 954 | public class JSR166TestCase extends Test
954		realRun();
955		threadShouldThrow("InterruptedException");
956		} catch (InterruptedException success) {
957	+	threadAssertFalse(Thread.interrupted());
958		} catch (Throwable t) {
959		threadUnexpectedException(t);
960		}
#	Line 796 | Line 984 | public class JSR166TestCase extends Test
984		threadShouldThrow("InterruptedException");
985		return result;
986		} catch (InterruptedException success) {
987	+	threadAssertFalse(Thread.interrupted());
988		} catch (Throwable t) {
989		threadUnexpectedException(t);
990		}
#	Line 830 | Line 1019 | public class JSR166TestCase extends Test
1019		public Runnable awaiter(final CountDownLatch latch) {
1020		return new CheckedRunnable() {
1021		public void realRun() throws InterruptedException {
1022	<	latch.await();
1022	>	await(latch);
1023		}};
1024		}
1025
1026	+	public void await(CountDownLatch latch) {
1027	+	try {
1028	+	assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS));
1029	+	} catch (Throwable t) {
1030	+	threadUnexpectedException(t);
1031	+	}
1032	+	}
1033	+
1034	+	public void await(Semaphore semaphore) {
1035	+	try {
1036	+	assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS));
1037	+	} catch (Throwable t) {
1038	+	threadUnexpectedException(t);
1039	+	}
1040	+	}
1041	+
1042	+	//     /**
1043	+	//      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
1044	+	//      */
1045	+	//     public void await(AtomicBoolean flag) {
1046	+	//         await(flag, LONG_DELAY_MS);
1047	+	//     }
1048	+
1049	+	//     /**
1050	+	//      * Spin-waits up to the specified timeout until flag becomes true.
1051	+	//      */
1052	+	//     public void await(AtomicBoolean flag, long timeoutMillis) {
1053	+	//         long startTime = System.nanoTime();
1054	+	//         while (!flag.get()) {
1055	+	//             if (millisElapsedSince(startTime) > timeoutMillis)
1056	+	//                 throw new AssertionFailedError("timed out");
1057	+	//             Thread.yield();
1058	+	//         }
1059	+	//     }
1060	+
1061		public static class NPETask implements Callable<String> {
1062		public String call() { throw new NullPointerException(); }
1063		}
#	Line 1036 | Line 1260 | public class JSR166TestCase extends Test
1260		}
1261
1262		/**
1263	<	* A CyclicBarrier that fails with AssertionFailedErrors instead
1264	<	* of throwing checked exceptions.
1263	>	* A CyclicBarrier that uses timed await and fails with
1264	>	* AssertionFailedErrors instead of throwing checked exceptions.
1265		*/
1266		public class CheckedBarrier extends CyclicBarrier {
1267		public CheckedBarrier(int parties) { super(parties); }
1268
1269		public int await() {
1270		try {
1271	<	return super.await();
1271	>	return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1272	>	} catch (TimeoutException e) {
1273	>	throw new AssertionFailedError("timed out");
1274		} catch (Exception e) {
1275		AssertionFailedError afe =
1276		new AssertionFailedError("Unexpected exception: " + e);
#	Line 1054 | Line 1280 | public class JSR166TestCase extends Test
1280		}
1281		}
1282
1283	<	public void checkEmpty(BlockingQueue q) {
1283	>	void checkEmpty(BlockingQueue q) {
1284		try {
1285		assertTrue(q.isEmpty());
1286		assertEquals(0, q.size());
#	Line 1081 | Line 1307 | public class JSR166TestCase extends Test
1307		}
1308		}
1309
1310	+	void assertSerialEquals(Object x, Object y) {
1311	+	assertTrue(Arrays.equals(serialBytes(x), serialBytes(y)));
1312	+	}
1313	+
1314	+	void assertNotSerialEquals(Object x, Object y) {
1315	+	assertFalse(Arrays.equals(serialBytes(x), serialBytes(y)));
1316	+	}
1317	+
1318	+	byte[] serialBytes(Object o) {
1319	+	try {
1320	+	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1321	+	ObjectOutputStream oos = new ObjectOutputStream(bos);
1322	+	oos.writeObject(o);
1323	+	oos.flush();
1324	+	oos.close();
1325	+	return bos.toByteArray();
1326	+	} catch (Throwable t) {
1327	+	threadUnexpectedException(t);
1328	+	return new byte[0];
1329	+	}
1330	+	}
1331	+
1332	+	@SuppressWarnings("unchecked")
1333	+	<T> T serialClone(T o) {
1334	+	try {
1335	+	ObjectInputStream ois = new ObjectInputStream
1336	+	(new ByteArrayInputStream(serialBytes(o)));
1337	+	T clone = (T) ois.readObject();
1338	+	assertSame(o.getClass(), clone.getClass());
1339	+	return clone;
1340	+	} catch (Throwable t) {
1341	+	threadUnexpectedException(t);
1342	+	return null;
1343	+	}
1344	+	}
1345		}

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