ViewVC Help

View File | Revision Log | Show Annotations | Download File | Root Listing

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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.78 by jsr166, Sat May 7 19:03:26 2011 UTC vs.
Revision 1.116 by jsr166, Sun Jun 8 00:15:50 2014 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;
29	+	import java.util.regex.Pattern;
30		import java.security.CodeSource;
31		import java.security.Permission;
32		import java.security.PermissionCollection;
#	Line 63 | Line 76 | import java.security.SecurityPermission;
76		*
77		* </ol>
78		*
79	<	* <p> <b>Other notes</b>
79	>	* <p><b>Other notes</b>
80		* <ul>
81		*
82		* <li> Usually, there is one testcase method per JSR166 method
#	Line 116 | Line 129 | public class JSR166TestCase extends Test
129		private static final long profileThreshold =
130		Long.getLong("jsr166.profileThreshold", 100);
131
132	+	/**
133	+	* The number of repetitions per test (for tickling rare bugs).
134	+	*/
135	+	private static final int runsPerTest =
136	+	Integer.getInteger("jsr166.runsPerTest", 1);
137	+
138	+	/**
139	+	* A filter for tests to run, matching strings of the form
140	+	* methodName(className), e.g. "testInvokeAll5(ForkJoinPoolTest)"
141	+	* Usefully combined with jsr166.runsPerTest.
142	+	*/
143	+	private static final Pattern methodFilter = methodFilter();
144	+
145	+	private static Pattern methodFilter() {
146	+	String regex = System.getProperty("jsr166.methodFilter");
147	+	return (regex == null) ? null : Pattern.compile(regex);
148	+	}
149	+
150		protected void runTest() throws Throwable {
151	<	if (profileTests)
152	<	runTestProfiled();
153	<	else
154	<	super.runTest();
151	>	if (methodFilter == null
152	>	|| methodFilter.matcher(toString()).find()) {
153	>	for (int i = 0; i < runsPerTest; i++) {
154	>	if (profileTests)
155	>	runTestProfiled();
156	>	else
157	>	super.runTest();
158	>	}
159	>	}
160		}
161
162		protected void runTestProfiled() throws Throwable {
163	+	// Warmup run, notably to trigger all needed classloading.
164	+	super.runTest();
165		long t0 = System.nanoTime();
166		try {
167		super.runTest();
168		} finally {
169	<	long elapsedMillis =
132	<	(System.nanoTime() - t0) / (1000L * 1000L);
169	>	long elapsedMillis = millisElapsedSince(t0);
170		if (elapsedMillis >= profileThreshold)
171		System.out.printf("%n%s: %d%n", toString(), elapsedMillis);
172		}
173		}
174
175		/**
176	<	* Runs all JSR166 unit tests using junit.textui.TestRunner
176	>	* Runs all JSR166 unit tests using junit.textui.TestRunner.
177	>	* Optional command line arg provides the number of iterations to
178	>	* repeat running the tests.
179		*/
180		public static void main(String[] args) {
181		if (useSecurityManager) {
#	Line 168 | Line 207 | public class JSR166TestCase extends Test
207		return suite;
208		}
209
210	+	public static void addNamedTestClasses(TestSuite suite,
211	+	String... testClassNames) {
212	+	for (String testClassName : testClassNames) {
213	+	try {
214	+	Class<?> testClass = Class.forName(testClassName);
215	+	Method m = testClass.getDeclaredMethod("suite",
216	+	new Class<?>[0]);
217	+	suite.addTest(newTestSuite((Test)m.invoke(null)));
218	+	} catch (Exception e) {
219	+	throw new Error("Missing test class", e);
220	+	}
221	+	}
222	+	}
223	+
224	+	public static final double JAVA_CLASS_VERSION;
225	+	public static final String JAVA_SPECIFICATION_VERSION;
226	+	static {
227	+	try {
228	+	JAVA_CLASS_VERSION = java.security.AccessController.doPrivileged(
229	+	new java.security.PrivilegedAction<Double>() {
230	+	public Double run() {
231	+	return Double.valueOf(System.getProperty("java.class.version"));}});
232	+	JAVA_SPECIFICATION_VERSION = java.security.AccessController.doPrivileged(
233	+	new java.security.PrivilegedAction<String>() {
234	+	public String run() {
235	+	return System.getProperty("java.specification.version");}});
236	+	} catch (Throwable t) {
237	+	throw new Error(t);
238	+	}
239	+	}
240	+
241	+	public static boolean atLeastJava6() { return JAVA_CLASS_VERSION >= 50.0; }
242	+	public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; }
243	+	public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; }
244	+	public static boolean atLeastJava9() {
245	+	// As of 2014-05, java9 still uses 52.0 class file version
246	+	return JAVA_SPECIFICATION_VERSION.startsWith("1.9");
247	+	}
248	+
249		/**
250		* Collects all JSR166 unit tests as one suite.
251		*/
252		public static Test suite() {
253	<	return newTestSuite(
253	>	// Java7+ test classes
254	>	TestSuite suite = newTestSuite(
255		ForkJoinPoolTest.suite(),
256		ForkJoinTaskTest.suite(),
257		RecursiveActionTest.suite(),
#	Line 237 | Line 316 | public class JSR166TestCase extends Test
316		TreeSetTest.suite(),
317		TreeSubMapTest.suite(),
318		TreeSubSetTest.suite());
319	+
320	+	// Java8+ test classes
321	+	if (atLeastJava8()) {
322	+	String[] java8TestClassNames = {
323	+	"Atomic8Test",
324	+	"CompletableFutureTest",
325	+	"ConcurrentHashMap8Test",
326	+	"CountedCompleterTest",
327	+	"DoubleAccumulatorTest",
328	+	"DoubleAdderTest",
329	+	"ForkJoinPool8Test",
330	+	"ForkJoinTask8Test",
331	+	"LongAccumulatorTest",
332	+	"LongAdderTest",
333	+	"SplittableRandomTest",
334	+	"StampedLockTest",
335	+	"ThreadLocalRandom8Test",
336	+	};
337	+	addNamedTestClasses(suite, java8TestClassNames);
338	+	}
339	+
340	+	// Java9+ test classes
341	+	if (atLeastJava9()) {
342	+	String[] java9TestClassNames = {
343	+	"ThreadPoolExecutor9Test",
344	+	};
345	+	addNamedTestClasses(suite, java9TestClassNames);
346	+	}
347	+
348	+	return suite;
349		}
350
351	+	// Delays for timing-dependent tests, in milliseconds.
352
353		public static long SHORT_DELAY_MS;
354		public static long SMALL_DELAY_MS;
355		public static long MEDIUM_DELAY_MS;
356		public static long LONG_DELAY_MS;
357
248	–
358		/**
359		* Returns the shortest timed delay. This could
360		* be reimplemented to use for example a Property.
#	Line 254 | Line 363 | public class JSR166TestCase extends Test
363		return 50;
364		}
365
257	–
366		/**
367		* Sets delays as multiples of SHORT_DELAY.
368		*/
#	Line 266 | Line 374 | public class JSR166TestCase extends Test
374		}
375
376		/**
377	+	* Returns a timeout in milliseconds to be used in tests that
378	+	* verify that operations block or time out.
379	+	*/
380	+	long timeoutMillis() {
381	+	return SHORT_DELAY_MS / 4;
382	+	}
383	+
384	+	/**
385	+	* Returns a new Date instance representing a time delayMillis
386	+	* milliseconds in the future.
387	+	*/
388	+	Date delayedDate(long delayMillis) {
389	+	return new Date(System.currentTimeMillis() + delayMillis);
390	+	}
391	+
392	+	/**
393		* The first exception encountered if any threadAssertXXX method fails.
394		*/
395		private final AtomicReference<Throwable> threadFailure
#	Line 286 | Line 410 | public class JSR166TestCase extends Test
410		}
411
412		/**
413	+	* Extra checks that get done for all test cases.
414	+	*
415		* Triggers test case failure if any thread assertions have failed,
416		* by rethrowing, in the test harness thread, any exception recorded
417		* earlier by threadRecordFailure.
418	+	*
419	+	* Triggers test case failure if interrupt status is set in the main thread.
420		*/
421		public void tearDown() throws Exception {
422		Throwable t = threadFailure.getAndSet(null);
#	Line 306 | Line 434 | public class JSR166TestCase extends Test
434		throw afe;
435		}
436		}
437	+
438	+	if (Thread.interrupted())
439	+	throw new AssertionFailedError("interrupt status set in main thread");
440	+
441	+	checkForkJoinPoolThreadLeaks();
442	+	}
443	+
444	+	/**
445	+	* Find missing try { ... } finally { joinPool(e); }
446	+	*/
447	+	void checkForkJoinPoolThreadLeaks() throws InterruptedException {
448	+	Thread[] survivors = new Thread[5];
449	+	int count = Thread.enumerate(survivors);
450	+	for (int i = 0; i < count; i++) {
451	+	Thread thread = survivors[i];
452	+	String name = thread.getName();
453	+	if (name.startsWith("ForkJoinPool-")) {
454	+	// give thread some time to terminate
455	+	thread.join(LONG_DELAY_MS);
456	+	if (!thread.isAlive()) continue;
457	+	thread.stop();
458	+	throw new AssertionFailedError
459	+	(String.format("Found leaked ForkJoinPool thread test=%s thread=%s%n",
460	+	toString(), name));
461	+	}
462	+	}
463		}
464
465		/**
#	Line 437 | Line 591 | public class JSR166TestCase extends Test
591		else {
592		AssertionFailedError afe =
593		new AssertionFailedError("unexpected exception: " + t);
594	<	t.initCause(t);
594	>	afe.initCause(t);
595		throw afe;
596		}
597		}
598
599		/**
600	<	* Delays, via Thread.sleep for the given millisecond delay, but
600	>	* Delays, via Thread.sleep, for the given millisecond delay, but
601		* if the sleep is shorter than specified, may re-sleep or yield
602		* until time elapses.
603		*/
604	<	public static void delay(long ms) throws InterruptedException {
604	>	static void delay(long millis) throws InterruptedException {
605		long startTime = System.nanoTime();
606	<	long ns = ms * 1000 * 1000;
606	>	long ns = millis * 1000 * 1000;
607		for (;;) {
608	<	if (ms > 0L)
609	<	Thread.sleep(ms);
608	>	if (millis > 0L)
609	>	Thread.sleep(millis);
610		else // too short to sleep
611		Thread.yield();
612		long d = ns - (System.nanoTime() - startTime);
613		if (d > 0L)
614	<	ms = d / (1000 * 1000);
614	>	millis = d / (1000 * 1000);
615		else
616		break;
617		}
#	Line 466 | Line 620 | public class JSR166TestCase extends Test
620		/**
621		* Waits out termination of a thread pool or fails doing so.
622		*/
623	<	public void joinPool(ExecutorService exec) {
623	>	void joinPool(ExecutorService exec) {
624		try {
625		exec.shutdown();
626		assertTrue("ExecutorService did not terminate in a timely manner",
#	Line 479 | Line 633 | public class JSR166TestCase extends Test
633		}
634
635		/**
636	<	* Checks that thread does not terminate within timeoutMillis
483	<	* milliseconds (that is, Thread.join times out).
636	>	* A debugging tool to print all stack traces, as jstack does.
637		*/
638	<	public void assertThreadJoinTimesOut(Thread thread, long timeoutMillis) {
638	>	static void printAllStackTraces() {
639	>	for (ThreadInfo info :
640	>	ManagementFactory.getThreadMXBean()
641	>	.dumpAllThreads(true, true))
642	>	System.err.print(info);
643	>	}
644	>
645	>	/**
646	>	* Checks that thread does not terminate within the default
647	>	* millisecond delay of {@code timeoutMillis()}.
648	>	*/
649	>	void assertThreadStaysAlive(Thread thread) {
650	>	assertThreadStaysAlive(thread, timeoutMillis());
651	>	}
652	>
653	>	/**
654	>	* Checks that thread does not terminate within the given millisecond delay.
655	>	*/
656	>	void assertThreadStaysAlive(Thread thread, long millis) {
657		try {
658	<	long startTime = System.nanoTime();
659	<	thread.join(timeoutMillis);
658	>	// No need to optimize the failing case via Thread.join.
659	>	delay(millis);
660		assertTrue(thread.isAlive());
490	–	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
661		} catch (InterruptedException ie) {
662		fail("Unexpected InterruptedException");
663		}
664		}
665
666		/**
667	+	* Checks that the threads do not terminate within the default
668	+	* millisecond delay of {@code timeoutMillis()}.
669	+	*/
670	+	void assertThreadsStayAlive(Thread... threads) {
671	+	assertThreadsStayAlive(timeoutMillis(), threads);
672	+	}
673	+
674	+	/**
675	+	* Checks that the threads do not terminate within the given millisecond delay.
676	+	*/
677	+	void assertThreadsStayAlive(long millis, Thread... threads) {
678	+	try {
679	+	// No need to optimize the failing case via Thread.join.
680	+	delay(millis);
681	+	for (Thread thread : threads)
682	+	assertTrue(thread.isAlive());
683	+	} catch (InterruptedException ie) {
684	+	fail("Unexpected InterruptedException");
685	+	}
686	+	}
687	+
688	+	/**
689	+	* Checks that future.get times out, with the default timeout of
690	+	* {@code timeoutMillis()}.
691	+	*/
692	+	void assertFutureTimesOut(Future future) {
693	+	assertFutureTimesOut(future, timeoutMillis());
694	+	}
695	+
696	+	/**
697	+	* Checks that future.get times out, with the given millisecond timeout.
698	+	*/
699	+	void assertFutureTimesOut(Future future, long timeoutMillis) {
700	+	long startTime = System.nanoTime();
701	+	try {
702	+	future.get(timeoutMillis, MILLISECONDS);
703	+	shouldThrow();
704	+	} catch (TimeoutException success) {
705	+	} catch (Exception e) {
706	+	threadUnexpectedException(e);
707	+	} finally { future.cancel(true); }
708	+	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
709	+	}
710	+
711	+	/**
712		* Fails with message "should throw exception".
713		*/
714		public void shouldThrow() {
#	Line 532 | Line 747 | public class JSR166TestCase extends Test
747		public static final Integer m6  = new Integer(-6);
748		public static final Integer m10 = new Integer(-10);
749
535	–
750		/**
751		* Runs Runnable r with a security policy that permits precisely
752		* the specified permissions.  If there is no current security
#	Line 544 | Line 758 | public class JSR166TestCase extends Test
758		SecurityManager sm = System.getSecurityManager();
759		if (sm == null) {
760		r.run();
761	+	}
762	+	runWithSecurityManagerWithPermissions(r, permissions);
763	+	}
764	+
765	+	/**
766	+	* Runs Runnable r with a security policy that permits precisely
767	+	* the specified permissions.  If there is no current security
768	+	* manager, a temporary one is set for the duration of the
769	+	* Runnable.  We require that any security manager permit
770	+	* getPolicy/setPolicy.
771	+	*/
772	+	public void runWithSecurityManagerWithPermissions(Runnable r,
773	+	Permission... permissions) {
774	+	SecurityManager sm = System.getSecurityManager();
775	+	if (sm == null) {
776		Policy savedPolicy = Policy.getPolicy();
777		try {
778		Policy.setPolicy(permissivePolicy());
779		System.setSecurityManager(new SecurityManager());
780	<	runWithPermissions(r, permissions);
780	>	runWithSecurityManagerWithPermissions(r, permissions);
781		} finally {
782		System.setSecurityManager(null);
783		Policy.setPolicy(savedPolicy);
#	Line 596 | Line 825 | public class JSR166TestCase extends Test
825		return perms.implies(p);
826		}
827		public void refresh() {}
828	+	public String toString() {
829	+	List<Permission> ps = new ArrayList<Permission>();
830	+	for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
831	+	ps.add(e.nextElement());
832	+	return "AdjustablePolicy with permissions " + ps;
833	+	}
834		}
835
836		/**
#	Line 633 | Line 868 | public class JSR166TestCase extends Test
868		}
869
870		/**
871	<	* Sleeps until the timeout has elapsed, or interrupted.
637	<	* Does <em>NOT</em> throw InterruptedException.
638	<	*/
639	<	void sleepTillInterrupted(long timeoutMillis) {
640	<	try {
641	<	Thread.sleep(timeoutMillis);
642	<	} catch (InterruptedException wakeup) {}
643	<	}
644	<
645	<	/**
646	<	* Waits up to the specified number of milliseconds for the given
871	>	* Spin-waits up to the specified number of milliseconds for the given
872		* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
873		*/
874		void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
875	<	long timeoutNanos = timeoutMillis * 1000L * 1000L;
651	<	long t0 = System.nanoTime();
875	>	long startTime = System.nanoTime();
876		for (;;) {
877		Thread.State s = thread.getState();
878		if (s == Thread.State.BLOCKED ||
#	Line 657 | Line 881 | public class JSR166TestCase extends Test
881		return;
882		else if (s == Thread.State.TERMINATED)
883		fail("Unexpected thread termination");
884	<	else if (System.nanoTime() - t0 > timeoutNanos) {
884	>	else if (millisElapsedSince(startTime) > timeoutMillis) {
885		threadAssertTrue(thread.isAlive());
886		return;
887		}
#	Line 703 | Line 927 | public class JSR166TestCase extends Test
927		} catch (InterruptedException ie) {
928		threadUnexpectedException(ie);
929		} finally {
930	<	if (t.isAlive()) {
930	>	if (t.getState() != Thread.State.TERMINATED) {
931		t.interrupt();
932		fail("Test timed out");
933		}
#	Line 781 | Line 1005 | public class JSR166TestCase extends Test
1005		realRun();
1006		threadShouldThrow("InterruptedException");
1007		} catch (InterruptedException success) {
1008	+	threadAssertFalse(Thread.interrupted());
1009		} catch (Throwable t) {
1010		threadUnexpectedException(t);
1011		}
#	Line 810 | Line 1035 | public class JSR166TestCase extends Test
1035		threadShouldThrow("InterruptedException");
1036		return result;
1037		} catch (InterruptedException success) {
1038	+	threadAssertFalse(Thread.interrupted());
1039		} catch (Throwable t) {
1040		threadUnexpectedException(t);
1041		}
#	Line 844 | Line 1070 | public class JSR166TestCase extends Test
1070		public Runnable awaiter(final CountDownLatch latch) {
1071		return new CheckedRunnable() {
1072		public void realRun() throws InterruptedException {
1073	<	latch.await();
1073	>	await(latch);
1074		}};
1075		}
1076
1077	+	public void await(CountDownLatch latch) {
1078	+	try {
1079	+	assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS));
1080	+	} catch (Throwable t) {
1081	+	threadUnexpectedException(t);
1082	+	}
1083	+	}
1084	+
1085	+	public void await(Semaphore semaphore) {
1086	+	try {
1087	+	assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS));
1088	+	} catch (Throwable t) {
1089	+	threadUnexpectedException(t);
1090	+	}
1091	+	}
1092	+
1093	+	//     /**
1094	+	//      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
1095	+	//      */
1096	+	//     public void await(AtomicBoolean flag) {
1097	+	//         await(flag, LONG_DELAY_MS);
1098	+	//     }
1099	+
1100	+	//     /**
1101	+	//      * Spin-waits up to the specified timeout until flag becomes true.
1102	+	//      */
1103	+	//     public void await(AtomicBoolean flag, long timeoutMillis) {
1104	+	//         long startTime = System.nanoTime();
1105	+	//         while (!flag.get()) {
1106	+	//             if (millisElapsedSince(startTime) > timeoutMillis)
1107	+	//                 throw new AssertionFailedError("timed out");
1108	+	//             Thread.yield();
1109	+	//         }
1110	+	//     }
1111	+
1112		public static class NPETask implements Callable<String> {
1113		public String call() { throw new NullPointerException(); }
1114		}
#	Line 1016 | Line 1277 | public class JSR166TestCase extends Test
1277		public abstract class CheckedRecursiveAction extends RecursiveAction {
1278		protected abstract void realCompute() throws Throwable;
1279
1280	<	public final void compute() {
1280	>	@Override protected final void compute() {
1281		try {
1282		realCompute();
1283		} catch (Throwable t) {
#	Line 1031 | Line 1292 | public class JSR166TestCase extends Test
1292		public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
1293		protected abstract T realCompute() throws Throwable;
1294
1295	<	public final T compute() {
1295	>	@Override protected final T compute() {
1296		try {
1297		return realCompute();
1298		} catch (Throwable t) {
#	Line 1050 | Line 1311 | public class JSR166TestCase extends Test
1311		}
1312
1313		/**
1314	<	* A CyclicBarrier that fails with AssertionFailedErrors instead
1315	<	* of throwing checked exceptions.
1314	>	* A CyclicBarrier that uses timed await and fails with
1315	>	* AssertionFailedErrors instead of throwing checked exceptions.
1316		*/
1317		public class CheckedBarrier extends CyclicBarrier {
1318		public CheckedBarrier(int parties) { super(parties); }
1319
1320		public int await() {
1321		try {
1322	<	return super.await();
1322	>	return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1323	>	} catch (TimeoutException e) {
1324	>	throw new AssertionFailedError("timed out");
1325		} catch (Exception e) {
1326		AssertionFailedError afe =
1327		new AssertionFailedError("Unexpected exception: " + e);
#	Line 1068 | Line 1331 | public class JSR166TestCase extends Test
1331		}
1332		}
1333
1334	<	public void checkEmpty(BlockingQueue q) {
1334	>	void checkEmpty(BlockingQueue q) {
1335		try {
1336		assertTrue(q.isEmpty());
1337		assertEquals(0, q.size());
#	Line 1095 | Line 1358 | public class JSR166TestCase extends Test
1358		}
1359		}
1360
1361	+	void assertSerialEquals(Object x, Object y) {
1362	+	assertTrue(Arrays.equals(serialBytes(x), serialBytes(y)));
1363	+	}
1364	+
1365	+	void assertNotSerialEquals(Object x, Object y) {
1366	+	assertFalse(Arrays.equals(serialBytes(x), serialBytes(y)));
1367	+	}
1368	+
1369	+	byte[] serialBytes(Object o) {
1370	+	try {
1371	+	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1372	+	ObjectOutputStream oos = new ObjectOutputStream(bos);
1373	+	oos.writeObject(o);
1374	+	oos.flush();
1375	+	oos.close();
1376	+	return bos.toByteArray();
1377	+	} catch (Throwable t) {
1378	+	threadUnexpectedException(t);
1379	+	return new byte[0];
1380	+	}
1381	+	}
1382	+
1383	+	@SuppressWarnings("unchecked")
1384	+	<T> T serialClone(T o) {
1385	+	try {
1386	+	ObjectInputStream ois = new ObjectInputStream
1387	+	(new ByteArrayInputStream(serialBytes(o)));
1388	+	T clone = (T) ois.readObject();
1389	+	assertSame(o.getClass(), clone.getClass());
1390	+	return clone;
1391	+	} catch (Throwable t) {
1392	+	threadUnexpectedException(t);
1393	+	return null;
1394	+	}
1395	+	}
1396	+
1397	+	public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1398	+	Runnable... throwingActions) {
1399	+	for (Runnable throwingAction : throwingActions) {
1400	+	boolean threw = false;
1401	+	try { throwingAction.run(); }
1402	+	catch (Throwable t) {
1403	+	threw = true;
1404	+	if (!expectedExceptionClass.isInstance(t)) {
1405	+	AssertionFailedError afe =
1406	+	new AssertionFailedError
1407	+	("Expected " + expectedExceptionClass.getName() +
1408	+	", got " + t.getClass().getName());
1409	+	afe.initCause(t);
1410	+	threadUnexpectedException(afe);
1411	+	}
1412	+	}
1413	+	if (!threw)
1414	+	shouldThrow(expectedExceptionClass.getName());
1415	+	}
1416	+	}
1417		}

Diff Legend

–	Removed lines
+	Added lines
<	Changed lines
>	Changed lines