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 1.101 by jsr166, Wed Feb 6 16:57:21 2013 UTC vs.
Revision 1.134 by jsr166, Sun Jun 14 20:58:14 2015 UTC

#	Line 6 | Line 6
6		* Pat Fisher, Mike Judd.
7		*/
8
9	<	import junit.framework.*;
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;
24	+	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.*;
37	<	import java.util.concurrent.atomic.AtomicBoolean;
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 static java.util.concurrent.TimeUnit.MILLISECONDS;
51	<	import static java.util.concurrent.TimeUnit.NANOSECONDS;
52	<	import java.security.CodeSource;
53	<	import java.security.Permission;
54	<	import java.security.PermissionCollection;
55	<	import java.security.Permissions;
56	<	import java.security.Policy;
34	<	import java.security.ProtectionDomain;
35	<	import java.security.SecurityPermission;
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 115 | 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 128 | 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 =
144	<	(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		}
#	Line 149 | Line 210 | public class JSR166TestCase extends Test
210
211		/**
212		* 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.
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) {
165	<	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		}
169	–	System.exit(0);
235		}
236
237		public static TestSuite newTestSuite(Object... suiteOrClasses) {
#	Line 197 | Line 262 | public class JSR166TestCase extends Test
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		}
#	Line 211 | Line 281 | public class JSR166TestCase extends Test
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() { return JAVA_CLASS_VERSION >= 53.0; }
285
286		/**
287		* Collects all JSR166 unit tests as one suite.
#	Line 286 | Line 357 | public class JSR166TestCase extends Test
357		// Java8+ test classes
358		if (atLeastJava8()) {
359		String[] java8TestClassNames = {
360	<	"StampedLockTest",
360	>	"Atomic8Test",
361	>	"CompletableFutureTest",
362	>	"ConcurrentHashMap8Test",
363	>	"CountedCompleterTest",
364	>	"DoubleAccumulatorTest",
365	>	"DoubleAdderTest",
366		"ForkJoinPool8Test",
367	+	"ForkJoinTask8Test",
368	+	"LongAccumulatorTest",
369	+	"LongAdderTest",
370	+	"SplittableRandomTest",
371	+	"StampedLockTest",
372	+	"ThreadLocalRandom8Test",
373		};
374		addNamedTestClasses(suite, java8TestClassNames);
375		}
376
377	+	// Java9+ test classes
378	+	if (atLeastJava9()) {
379	+	String[] java9TestClassNames = {
380	+	"ThreadPoolExecutor9Test",
381	+	};
382	+	addNamedTestClasses(suite, java9TestClassNames);
383	+	}
384	+
385		return suite;
386		}
387
388	+	/** Returns list of junit-style test method names in given class. */
389	+	public static ArrayList<String> testMethodNames(Class<?> testClass) {
390	+	Method[] methods = testClass.getDeclaredMethods();
391	+	ArrayList<String> names = new ArrayList<String>(methods.length);
392	+	for (Method method : methods) {
393	+	if (method.getName().startsWith("test")
394	+	&& Modifier.isPublic(method.getModifiers())
395	+	// method.getParameterCount() requires jdk8+
396	+	&& method.getParameterTypes().length == 0) {
397	+	names.add(method.getName());
398	+	}
399	+	}
400	+	return names;
401	+	}
402	+
403	+	/**
404	+	* Returns junit-style testSuite for the given test class, but
405	+	* parameterized by passing extra data to each test.
406	+	*/
407	+	public static <ExtraData> Test parameterizedTestSuite
408	+	(Class<? extends JSR166TestCase> testClass,
409	+	Class<ExtraData> dataClass,
410	+	ExtraData data) {
411	+	try {
412	+	TestSuite suite = new TestSuite();
413	+	Constructor c =
414	+	testClass.getDeclaredConstructor(dataClass, String.class);
415	+	for (String methodName : testMethodNames(testClass))
416	+	suite.addTest((Test) c.newInstance(data, methodName));
417	+	return suite;
418	+	} catch (Exception e) {
419	+	throw new Error(e);
420	+	}
421	+	}
422	+
423	+	/**
424	+	* Returns junit-style testSuite for the jdk8 extension of the
425	+	* given test class, but parameterized by passing extra data to
426	+	* each test.  Uses reflection to allow compilation in jdk7.
427	+	*/
428	+	public static <ExtraData> Test jdk8ParameterizedTestSuite
429	+	(Class<? extends JSR166TestCase> testClass,
430	+	Class<ExtraData> dataClass,
431	+	ExtraData data) {
432	+	if (atLeastJava8()) {
433	+	String name = testClass.getName();
434	+	String name8 = name.replaceAll("Test$", "8Test");
435	+	if (name.equals(name8)) throw new Error(name);
436	+	try {
437	+	return (Test)
438	+	Class.forName(name8)
439	+	.getMethod("testSuite", new Class[] { dataClass })
440	+	.invoke(null, data);
441	+	} catch (Exception e) {
442	+	throw new Error(e);
443	+	}
444	+	} else {
445	+	return new TestSuite();
446	+	}
447	+
448	+	}
449	+
450	+	// Delays for timing-dependent tests, in milliseconds.
451
452		public static long SHORT_DELAY_MS;
453		public static long SMALL_DELAY_MS;
454		public static long MEDIUM_DELAY_MS;
455		public static long LONG_DELAY_MS;
456
304	–
457		/**
458		* Returns the shortest timed delay. This could
459		* be reimplemented to use for example a Property.
#	Line 389 | Line 541 | public class JSR166TestCase extends Test
541		}
542
543		/**
544	<	* Find missing try { ... } finally { joinPool(e); }
544	>	* Finds missing try { ... } finally { joinPool(e); }
545		*/
546		void checkForkJoinPoolThreadLeaks() throws InterruptedException {
547		Thread[] survivors = new Thread[5];
#	Line 401 | Line 553 | public class JSR166TestCase extends Test
553		// give thread some time to terminate
554		thread.join(LONG_DELAY_MS);
555		if (!thread.isAlive()) continue;
404	–	thread.stop();
556		throw new AssertionFailedError
557		(String.format("Found leaked ForkJoinPool thread test=%s thread=%s%n",
558		toString(), name));
#	Line 487 | Line 638 | public class JSR166TestCase extends Test
638		public void threadAssertEquals(Object x, Object y) {
639		try {
640		assertEquals(x, y);
641	<	} catch (AssertionFailedError t) {
642	<	threadRecordFailure(t);
643	<	throw t;
644	<	} catch (Throwable t) {
645	<	threadUnexpectedException(t);
641	>	} catch (AssertionFailedError fail) {
642	>	threadRecordFailure(fail);
643	>	throw fail;
644	>	} catch (Throwable fail) {
645	>	threadUnexpectedException(fail);
646		}
647		}
648
#	Line 503 | Line 654 | public class JSR166TestCase extends Test
654		public void threadAssertSame(Object x, Object y) {
655		try {
656		assertSame(x, y);
657	<	} catch (AssertionFailedError t) {
658	<	threadRecordFailure(t);
659	<	throw t;
657	>	} catch (AssertionFailedError fail) {
658	>	threadRecordFailure(fail);
659	>	throw fail;
660		}
661		}
662
#	Line 570 | Line 721 | public class JSR166TestCase extends Test
721		void joinPool(ExecutorService exec) {
722		try {
723		exec.shutdown();
724	<	assertTrue("ExecutorService did not terminate in a timely manner",
725	<	exec.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS));
724	>	if (!exec.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS))
725	>	fail("ExecutorService " + exec +
726	>	" did not terminate in a timely manner");
727		} catch (SecurityException ok) {
728		// Allowed in case test doesn't have privs
729	<	} catch (InterruptedException ie) {
729	>	} catch (InterruptedException fail) {
730		fail("Unexpected InterruptedException");
731		}
732		}
#	Line 605 | Line 757 | public class JSR166TestCase extends Test
757		// No need to optimize the failing case via Thread.join.
758		delay(millis);
759		assertTrue(thread.isAlive());
760	<	} catch (InterruptedException ie) {
760	>	} catch (InterruptedException fail) {
761		fail("Unexpected InterruptedException");
762		}
763		}
#	Line 627 | Line 779 | public class JSR166TestCase extends Test
779		delay(millis);
780		for (Thread thread : threads)
781		assertTrue(thread.isAlive());
782	<	} catch (InterruptedException ie) {
782	>	} catch (InterruptedException fail) {
783		fail("Unexpected InterruptedException");
784		}
785		}
#	Line 649 | Line 801 | public class JSR166TestCase extends Test
801		future.get(timeoutMillis, MILLISECONDS);
802		shouldThrow();
803		} catch (TimeoutException success) {
804	<	} catch (Exception e) {
805	<	threadUnexpectedException(e);
804	>	} catch (Exception fail) {
805	>	threadUnexpectedException(fail);
806		} finally { future.cancel(true); }
807		assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
808		}
#	Line 694 | Line 846 | public class JSR166TestCase extends Test
846		public static final Integer m6  = new Integer(-6);
847		public static final Integer m10 = new Integer(-10);
848
697	–
849		/**
850		* Runs Runnable r with a security policy that permits precisely
851		* the specified permissions.  If there is no current security
#	Line 807 | Line 958 | public class JSR166TestCase extends Test
958		void sleep(long millis) {
959		try {
960		delay(millis);
961	<	} catch (InterruptedException ie) {
961	>	} catch (InterruptedException fail) {
962		AssertionFailedError afe =
963		new AssertionFailedError("Unexpected InterruptedException");
964	<	afe.initCause(ie);
964	>	afe.initCause(fail);
965		throw afe;
966		}
967		}
#	Line 848 | Line 999 | public class JSR166TestCase extends Test
999		/**
1000		* Returns the number of milliseconds since time given by
1001		* startNanoTime, which must have been previously returned from a
1002	<	* call to {@link System.nanoTime()}.
1002	>	* call to {@link System#nanoTime()}.
1003		*/
1004	<	long millisElapsedSince(long startNanoTime) {
1004	>	static long millisElapsedSince(long startNanoTime) {
1005		return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
1006		}
1007
1008	+	//     void assertTerminatesPromptly(long timeoutMillis, Runnable r) {
1009	+	//         long startTime = System.nanoTime();
1010	+	//         try {
1011	+	//             r.run();
1012	+	//         } catch (Throwable fail) { threadUnexpectedException(fail); }
1013	+	//         if (millisElapsedSince(startTime) > timeoutMillis/2)
1014	+	//             throw new AssertionFailedError("did not return promptly");
1015	+	//     }
1016	+
1017	+	//     void assertTerminatesPromptly(Runnable r) {
1018	+	//         assertTerminatesPromptly(LONG_DELAY_MS/2, r);
1019	+	//     }
1020	+
1021	+	/**
1022	+	* Checks that timed f.get() returns the expected value, and does not
1023	+	* wait for the timeout to elapse before returning.
1024	+	*/
1025	+	<T> void checkTimedGet(Future<T> f, T expectedValue, long timeoutMillis) {
1026	+	long startTime = System.nanoTime();
1027	+	try {
1028	+	assertEquals(expectedValue, f.get(timeoutMillis, MILLISECONDS));
1029	+	} catch (Throwable fail) { threadUnexpectedException(fail); }
1030	+	if (millisElapsedSince(startTime) > timeoutMillis/2)
1031	+	throw new AssertionFailedError("timed get did not return promptly");
1032	+	}
1033	+
1034	+	<T> void checkTimedGet(Future<T> f, T expectedValue) {
1035	+	checkTimedGet(f, expectedValue, LONG_DELAY_MS);
1036	+	}
1037	+
1038		/**
1039		* Returns a new started daemon Thread running the given runnable.
1040		*/
#	Line 872 | Line 1053 | public class JSR166TestCase extends Test
1053		void awaitTermination(Thread t, long timeoutMillis) {
1054		try {
1055		t.join(timeoutMillis);
1056	<	} catch (InterruptedException ie) {
1057	<	threadUnexpectedException(ie);
1056	>	} catch (InterruptedException fail) {
1057	>	threadUnexpectedException(fail);
1058		} finally {
1059		if (t.getState() != Thread.State.TERMINATED) {
1060		t.interrupt();
#	Line 899 | Line 1080 | public class JSR166TestCase extends Test
1080		public final void run() {
1081		try {
1082		realRun();
1083	<	} catch (Throwable t) {
1084	<	threadUnexpectedException(t);
1083	>	} catch (Throwable fail) {
1084	>	threadUnexpectedException(fail);
1085		}
1086		}
1087		}
#	Line 954 | Line 1135 | public class JSR166TestCase extends Test
1135		threadShouldThrow("InterruptedException");
1136		} catch (InterruptedException success) {
1137		threadAssertFalse(Thread.interrupted());
1138	<	} catch (Throwable t) {
1139	<	threadUnexpectedException(t);
1138	>	} catch (Throwable fail) {
1139	>	threadUnexpectedException(fail);
1140		}
1141		}
1142		}
#	Line 966 | Line 1147 | public class JSR166TestCase extends Test
1147		public final T call() {
1148		try {
1149		return realCall();
1150	<	} catch (Throwable t) {
1151	<	threadUnexpectedException(t);
1150	>	} catch (Throwable fail) {
1151	>	threadUnexpectedException(fail);
1152		return null;
1153		}
1154		}
#	Line 984 | Line 1165 | public class JSR166TestCase extends Test
1165		return result;
1166		} catch (InterruptedException success) {
1167		threadAssertFalse(Thread.interrupted());
1168	<	} catch (Throwable t) {
1169	<	threadUnexpectedException(t);
1168	>	} catch (Throwable fail) {
1169	>	threadUnexpectedException(fail);
1170		}
1171		return null;
1172		}
#	Line 1025 | Line 1206 | public class JSR166TestCase extends Test
1206		public void await(CountDownLatch latch) {
1207		try {
1208		assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS));
1209	<	} catch (Throwable t) {
1210	<	threadUnexpectedException(t);
1209	>	} catch (Throwable fail) {
1210	>	threadUnexpectedException(fail);
1211		}
1212		}
1213
1214		public void await(Semaphore semaphore) {
1215		try {
1216		assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS));
1217	<	} catch (Throwable t) {
1218	<	threadUnexpectedException(t);
1217	>	} catch (Throwable fail) {
1218	>	threadUnexpectedException(fail);
1219		}
1220		}
1221
#	Line 1225 | Line 1406 | public class JSR166TestCase extends Test
1406		public abstract class CheckedRecursiveAction extends RecursiveAction {
1407		protected abstract void realCompute() throws Throwable;
1408
1409	<	public final void compute() {
1409	>	@Override protected final void compute() {
1410		try {
1411		realCompute();
1412	<	} catch (Throwable t) {
1413	<	threadUnexpectedException(t);
1412	>	} catch (Throwable fail) {
1413	>	threadUnexpectedException(fail);
1414		}
1415		}
1416		}
#	Line 1240 | Line 1421 | public class JSR166TestCase extends Test
1421		public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
1422		protected abstract T realCompute() throws Throwable;
1423
1424	<	public final T compute() {
1424	>	@Override protected final T compute() {
1425		try {
1426		return realCompute();
1427	<	} catch (Throwable t) {
1428	<	threadUnexpectedException(t);
1427	>	} catch (Throwable fail) {
1428	>	threadUnexpectedException(fail);
1429		return null;
1430		}
1431		}
#	Line 1268 | Line 1449 | public class JSR166TestCase extends Test
1449		public int await() {
1450		try {
1451		return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1452	<	} catch (TimeoutException e) {
1452	>	} catch (TimeoutException timedOut) {
1453		throw new AssertionFailedError("timed out");
1454	<	} catch (Exception e) {
1454	>	} catch (Exception fail) {
1455		AssertionFailedError afe =
1456	<	new AssertionFailedError("Unexpected exception: " + e);
1457	<	afe.initCause(e);
1456	>	new AssertionFailedError("Unexpected exception: " + fail);
1457	>	afe.initCause(fail);
1458		throw afe;
1459		}
1460		}
#	Line 1301 | Line 1482 | public class JSR166TestCase extends Test
1482		q.remove();
1483		shouldThrow();
1484		} catch (NoSuchElementException success) {}
1485	<	} catch (InterruptedException ie) {
1305	<	threadUnexpectedException(ie);
1306	<	}
1485	>	} catch (InterruptedException fail) { threadUnexpectedException(fail); }
1486		}
1487
1488		void assertSerialEquals(Object x, Object y) {
#	Line 1322 | Line 1501 | public class JSR166TestCase extends Test
1501		oos.flush();
1502		oos.close();
1503		return bos.toByteArray();
1504	<	} catch (Throwable t) {
1505	<	threadUnexpectedException(t);
1504	>	} catch (Throwable fail) {
1505	>	threadUnexpectedException(fail);
1506		return new byte[0];
1507		}
1508		}
#	Line 1336 | Line 1515 | public class JSR166TestCase extends Test
1515		T clone = (T) ois.readObject();
1516		assertSame(o.getClass(), clone.getClass());
1517		return clone;
1518	<	} catch (Throwable t) {
1519	<	threadUnexpectedException(t);
1518	>	} catch (Throwable fail) {
1519	>	threadUnexpectedException(fail);
1520		return null;
1521		}
1522		}
1523	+
1524	+	public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1525	+	Runnable... throwingActions) {
1526	+	for (Runnable throwingAction : throwingActions) {
1527	+	boolean threw = false;
1528	+	try { throwingAction.run(); }
1529	+	catch (Throwable t) {
1530	+	threw = true;
1531	+	if (!expectedExceptionClass.isInstance(t)) {
1532	+	AssertionFailedError afe =
1533	+	new AssertionFailedError
1534	+	("Expected " + expectedExceptionClass.getName() +
1535	+	", got " + t.getClass().getName());
1536	+	afe.initCause(t);
1537	+	threadUnexpectedException(afe);
1538	+	}
1539	+	}
1540	+	if (!threw)
1541	+	shouldThrow(expectedExceptionClass.getName());
1542	+	}
1543	+	}
1544	+
1545	+	public void assertIteratorExhausted(Iterator<?> it) {
1546	+	try {
1547	+	it.next();
1548	+	shouldThrow();
1549	+	} catch (NoSuchElementException success) {}
1550	+	assertFalse(it.hasNext());
1551	+	}
1552		}

Diff Legend

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