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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.79 by jsr166, Mon May 9 20:00:19 2011 UTC vs.
Revision 1.103 by dl, Wed Mar 20 20:29:02 2013 UTC

#	Line 11 | Line 11 | 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 67 | 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 140 | 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 172 | 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 241 | 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	+	"LongAdderTest",
290	+	"LongAccumulatorTest",
291	+	"DoubleAdderTest",
292	+	"DoubleAccumulatorTest",
293	+	"CompletableFutureTest",
294	+	"ForkJoinPool8Test",
295	+	"StampedLockTest",
296	+	};
297	+	addNamedTestClasses(suite, java8TestClassNames);
298	+	}
299	+
300	+	return suite;
301		}
302
303
#	Line 258 | Line 315 | public class JSR166TestCase extends Test
315		return 50;
316		}
317
261	–
318		/**
319		* Sets delays as multiples of SHORT_DELAY.
320		*/
#	Line 270 | Line 326 | public class JSR166TestCase extends Test
326		}
327
328		/**
329	+	* Returns a timeout in milliseconds to be used in tests that
330	+	* verify that operations block or time out.
331	+	*/
332	+	long timeoutMillis() {
333	+	return SHORT_DELAY_MS / 4;
334	+	}
335	+
336	+	/**
337	+	* Returns a new Date instance representing a time delayMillis
338	+	* milliseconds in the future.
339	+	*/
340	+	Date delayedDate(long delayMillis) {
341	+	return new Date(System.currentTimeMillis() + delayMillis);
342	+	}
343	+
344	+	/**
345		* The first exception encountered if any threadAssertXXX method fails.
346		*/
347		private final AtomicReference<Throwable> threadFailure
#	Line 290 | Line 362 | public class JSR166TestCase extends Test
362		}
363
364		/**
365	+	* Extra checks that get done for all test cases.
366	+	*
367		* Triggers test case failure if any thread assertions have failed,
368		* by rethrowing, in the test harness thread, any exception recorded
369		* earlier by threadRecordFailure.
370	+	*
371	+	* Triggers test case failure if interrupt status is set in the main thread.
372		*/
373		public void tearDown() throws Exception {
374		Throwable t = threadFailure.getAndSet(null);
#	Line 310 | Line 386 | public class JSR166TestCase extends Test
386		throw afe;
387		}
388		}
389	+
390	+	if (Thread.interrupted())
391	+	throw new AssertionFailedError("interrupt status set in main thread");
392	+
393	+	checkForkJoinPoolThreadLeaks();
394	+	}
395	+
396	+	/**
397	+	* Find missing try { ... } finally { joinPool(e); }
398	+	*/
399	+	void checkForkJoinPoolThreadLeaks() throws InterruptedException {
400	+	Thread[] survivors = new Thread[5];
401	+	int count = Thread.enumerate(survivors);
402	+	for (int i = 0; i < count; i++) {
403	+	Thread thread = survivors[i];
404	+	String name = thread.getName();
405	+	if (name.startsWith("ForkJoinPool-")) {
406	+	// give thread some time to terminate
407	+	thread.join(LONG_DELAY_MS);
408	+	if (!thread.isAlive()) continue;
409	+	thread.stop();
410	+	throw new AssertionFailedError
411	+	(String.format("Found leaked ForkJoinPool thread test=%s thread=%s%n",
412	+	toString(), name));
413	+	}
414	+	}
415		}
416
417		/**
#	Line 441 | Line 543 | public class JSR166TestCase extends Test
543		else {
544		AssertionFailedError afe =
545		new AssertionFailedError("unexpected exception: " + t);
546	<	t.initCause(t);
546	>	afe.initCause(t);
547		throw afe;
548		}
549		}
550
551		/**
552	<	* Delays, via Thread.sleep for the given millisecond delay, but
552	>	* Delays, via Thread.sleep, for the given millisecond delay, but
553		* if the sleep is shorter than specified, may re-sleep or yield
554		* until time elapses.
555		*/
556	<	public static void delay(long ms) throws InterruptedException {
556	>	static void delay(long millis) throws InterruptedException {
557		long startTime = System.nanoTime();
558	<	long ns = ms * 1000 * 1000;
558	>	long ns = millis * 1000 * 1000;
559		for (;;) {
560	<	if (ms > 0L)
561	<	Thread.sleep(ms);
560	>	if (millis > 0L)
561	>	Thread.sleep(millis);
562		else // too short to sleep
563		Thread.yield();
564		long d = ns - (System.nanoTime() - startTime);
565		if (d > 0L)
566	<	ms = d / (1000 * 1000);
566	>	millis = d / (1000 * 1000);
567		else
568		break;
569		}
#	Line 470 | Line 572 | public class JSR166TestCase extends Test
572		/**
573		* Waits out termination of a thread pool or fails doing so.
574		*/
575	<	public void joinPool(ExecutorService exec) {
575	>	void joinPool(ExecutorService exec) {
576		try {
577		exec.shutdown();
578		assertTrue("ExecutorService did not terminate in a timely manner",
#	Line 483 | Line 585 | public class JSR166TestCase extends Test
585		}
586
587		/**
588	<	* Checks that thread does not terminate within timeoutMillis
487	<	* milliseconds (that is, Thread.join times out).
588	>	* A debugging tool to print all stack traces, as jstack does.
589		*/
590	<	public void assertThreadJoinTimesOut(Thread thread, long timeoutMillis) {
590	>	static void printAllStackTraces() {
591	>	for (ThreadInfo info :
592	>	ManagementFactory.getThreadMXBean()
593	>	.dumpAllThreads(true, true))
594	>	System.err.print(info);
595	>	}
596	>
597	>	/**
598	>	* Checks that thread does not terminate within the default
599	>	* millisecond delay of {@code timeoutMillis()}.
600	>	*/
601	>	void assertThreadStaysAlive(Thread thread) {
602	>	assertThreadStaysAlive(thread, timeoutMillis());
603	>	}
604	>
605	>	/**
606	>	* Checks that thread does not terminate within the given millisecond delay.
607	>	*/
608	>	void assertThreadStaysAlive(Thread thread, long millis) {
609		try {
610	<	long startTime = System.nanoTime();
611	<	thread.join(timeoutMillis);
610	>	// No need to optimize the failing case via Thread.join.
611	>	delay(millis);
612		assertTrue(thread.isAlive());
494	–	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
613		} catch (InterruptedException ie) {
614		fail("Unexpected InterruptedException");
615		}
616		}
617
618		/**
619	+	* Checks that the threads do not terminate within the default
620	+	* millisecond delay of {@code timeoutMillis()}.
621	+	*/
622	+	void assertThreadsStayAlive(Thread... threads) {
623	+	assertThreadsStayAlive(timeoutMillis(), threads);
624	+	}
625	+
626	+	/**
627	+	* Checks that the threads do not terminate within the given millisecond delay.
628	+	*/
629	+	void assertThreadsStayAlive(long millis, Thread... threads) {
630	+	try {
631	+	// No need to optimize the failing case via Thread.join.
632	+	delay(millis);
633	+	for (Thread thread : threads)
634	+	assertTrue(thread.isAlive());
635	+	} catch (InterruptedException ie) {
636	+	fail("Unexpected InterruptedException");
637	+	}
638	+	}
639	+
640	+	/**
641	+	* Checks that future.get times out, with the default timeout of
642	+	* {@code timeoutMillis()}.
643	+	*/
644	+	void assertFutureTimesOut(Future future) {
645	+	assertFutureTimesOut(future, timeoutMillis());
646	+	}
647	+
648	+	/**
649	+	* Checks that future.get times out, with the given millisecond timeout.
650	+	*/
651	+	void assertFutureTimesOut(Future future, long timeoutMillis) {
652	+	long startTime = System.nanoTime();
653	+	try {
654	+	future.get(timeoutMillis, MILLISECONDS);
655	+	shouldThrow();
656	+	} catch (TimeoutException success) {
657	+	} catch (Exception e) {
658	+	threadUnexpectedException(e);
659	+	} finally { future.cancel(true); }
660	+	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
661	+	}
662	+
663	+	/**
664		* Fails with message "should throw exception".
665		*/
666		public void shouldThrow() {
#	Line 548 | Line 711 | public class JSR166TestCase extends Test
711		SecurityManager sm = System.getSecurityManager();
712		if (sm == null) {
713		r.run();
714	+	}
715	+	runWithSecurityManagerWithPermissions(r, permissions);
716	+	}
717	+
718	+	/**
719	+	* Runs Runnable r with a security policy that permits precisely
720	+	* the specified permissions.  If there is no current security
721	+	* manager, a temporary one is set for the duration of the
722	+	* Runnable.  We require that any security manager permit
723	+	* getPolicy/setPolicy.
724	+	*/
725	+	public void runWithSecurityManagerWithPermissions(Runnable r,
726	+	Permission... permissions) {
727	+	SecurityManager sm = System.getSecurityManager();
728	+	if (sm == null) {
729		Policy savedPolicy = Policy.getPolicy();
730		try {
731		Policy.setPolicy(permissivePolicy());
732		System.setSecurityManager(new SecurityManager());
733	<	runWithPermissions(r, permissions);
733	>	runWithSecurityManagerWithPermissions(r, permissions);
734		} finally {
735		System.setSecurityManager(null);
736		Policy.setPolicy(savedPolicy);
#	Line 600 | Line 778 | public class JSR166TestCase extends Test
778		return perms.implies(p);
779		}
780		public void refresh() {}
781	+	public String toString() {
782	+	List<Permission> ps = new ArrayList<Permission>();
783	+	for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
784	+	ps.add(e.nextElement());
785	+	return "AdjustablePolicy with permissions " + ps;
786	+	}
787		}
788
789		/**
#	Line 637 | Line 821 | public class JSR166TestCase extends Test
821		}
822
823		/**
824	<	* Sleeps until the timeout has elapsed, or interrupted.
641	<	* Does <em>NOT</em> throw InterruptedException.
642	<	*/
643	<	void sleepTillInterrupted(long timeoutMillis) {
644	<	try {
645	<	Thread.sleep(timeoutMillis);
646	<	} catch (InterruptedException wakeup) {}
647	<	}
648	<
649	<	/**
650	<	* Waits up to the specified number of milliseconds for the given
824	>	* Spin-waits up to the specified number of milliseconds for the given
825		* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
826		*/
827		void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
828	<	long timeoutNanos = timeoutMillis * 1000L * 1000L;
655	<	long t0 = System.nanoTime();
828	>	long startTime = System.nanoTime();
829		for (;;) {
830		Thread.State s = thread.getState();
831		if (s == Thread.State.BLOCKED ||
#	Line 661 | Line 834 | public class JSR166TestCase extends Test
834		return;
835		else if (s == Thread.State.TERMINATED)
836		fail("Unexpected thread termination");
837	<	else if (System.nanoTime() - t0 > timeoutNanos) {
837	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
838		threadAssertTrue(thread.isAlive());
839		return;
840		}
#	Line 707 | Line 880 | public class JSR166TestCase extends Test
880		} catch (InterruptedException ie) {
881		threadUnexpectedException(ie);
882		} finally {
883	<	if (t.isAlive()) {
883	>	if (t.getState() != Thread.State.TERMINATED) {
884		t.interrupt();
885		fail("Test timed out");
886		}
#	Line 785 | Line 958 | public class JSR166TestCase extends Test
958		realRun();
959		threadShouldThrow("InterruptedException");
960		} catch (InterruptedException success) {
961	+	threadAssertFalse(Thread.interrupted());
962		} catch (Throwable t) {
963		threadUnexpectedException(t);
964		}
#	Line 814 | Line 988 | public class JSR166TestCase extends Test
988		threadShouldThrow("InterruptedException");
989		return result;
990		} catch (InterruptedException success) {
991	+	threadAssertFalse(Thread.interrupted());
992		} catch (Throwable t) {
993		threadUnexpectedException(t);
994		}
#	Line 860 | Line 1035 | public class JSR166TestCase extends Test
1035		}
1036		}
1037
1038	+	public void await(Semaphore semaphore) {
1039	+	try {
1040	+	assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS));
1041	+	} catch (Throwable t) {
1042	+	threadUnexpectedException(t);
1043	+	}
1044	+	}
1045	+
1046	+	//     /**
1047	+	//      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
1048	+	//      */
1049	+	//     public void await(AtomicBoolean flag) {
1050	+	//         await(flag, LONG_DELAY_MS);
1051	+	//     }
1052	+
1053	+	//     /**
1054	+	//      * Spin-waits up to the specified timeout until flag becomes true.
1055	+	//      */
1056	+	//     public void await(AtomicBoolean flag, long timeoutMillis) {
1057	+	//         long startTime = System.nanoTime();
1058	+	//         while (!flag.get()) {
1059	+	//             if (millisElapsedSince(startTime) > timeoutMillis)
1060	+	//                 throw new AssertionFailedError("timed out");
1061	+	//             Thread.yield();
1062	+	//         }
1063	+	//     }
1064	+
1065		public static class NPETask implements Callable<String> {
1066		public String call() { throw new NullPointerException(); }
1067		}
#	Line 1062 | Line 1264 | public class JSR166TestCase extends Test
1264		}
1265
1266		/**
1267	<	* A CyclicBarrier that fails with AssertionFailedErrors instead
1268	<	* of throwing checked exceptions.
1267	>	* A CyclicBarrier that uses timed await and fails with
1268	>	* AssertionFailedErrors instead of throwing checked exceptions.
1269		*/
1270		public class CheckedBarrier extends CyclicBarrier {
1271		public CheckedBarrier(int parties) { super(parties); }
1272
1273		public int await() {
1274		try {
1275	<	return super.await();
1275	>	return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1276	>	} catch (TimeoutException e) {
1277	>	throw new AssertionFailedError("timed out");
1278		} catch (Exception e) {
1279		AssertionFailedError afe =
1280		new AssertionFailedError("Unexpected exception: " + e);
#	Line 1080 | Line 1284 | public class JSR166TestCase extends Test
1284		}
1285		}
1286
1287	<	public void checkEmpty(BlockingQueue q) {
1287	>	void checkEmpty(BlockingQueue q) {
1288		try {
1289		assertTrue(q.isEmpty());
1290		assertEquals(0, q.size());
#	Line 1107 | Line 1311 | public class JSR166TestCase extends Test
1311		}
1312		}
1313
1314	<	@SuppressWarnings("unchecked")
1315	<	public <T> T serialClone(T o) {
1314	>	void assertSerialEquals(Object x, Object y) {
1315	>	assertTrue(Arrays.equals(serialBytes(x), serialBytes(y)));
1316	>	}
1317	>
1318	>	void assertNotSerialEquals(Object x, Object y) {
1319	>	assertFalse(Arrays.equals(serialBytes(x), serialBytes(y)));
1320	>	}
1321	>
1322	>	byte[] serialBytes(Object o) {
1323		try {
1324		ByteArrayOutputStream bos = new ByteArrayOutputStream();
1325		ObjectOutputStream oos = new ObjectOutputStream(bos);
1326		oos.writeObject(o);
1327		oos.flush();
1328		oos.close();
1329	<	ByteArrayInputStream bin =
1330	<	new ByteArrayInputStream(bos.toByteArray());
1331	<	ObjectInputStream ois = new ObjectInputStream(bin);
1332	<	return (T) ois.readObject();
1329	>	return bos.toByteArray();
1330	>	} catch (Throwable t) {
1331	>	threadUnexpectedException(t);
1332	>	return new byte[0];
1333	>	}
1334	>	}
1335	>
1336	>	@SuppressWarnings("unchecked")
1337	>	<T> T serialClone(T o) {
1338	>	try {
1339	>	ObjectInputStream ois = new ObjectInputStream
1340	>	(new ByteArrayInputStream(serialBytes(o)));
1341	>	T clone = (T) ois.readObject();
1342	>	assertSame(o.getClass(), clone.getClass());
1343	>	return clone;
1344		} catch (Throwable t) {
1345		threadUnexpectedException(t);
1346		return null;

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