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

Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.25 by dl, Tue Mar 1 01:32:00 2005 UTC vs.
Revision 1.72 by jsr166, Sun Nov 28 08:43:53 2010 UTC

#	Line 2 | Line 2
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
5	<	* Other contributors include Andrew Wright, Jeffrey Hayes,
6	<	* Pat Fisher, Mike Judd.
5	>	* Other contributors include Andrew Wright, Jeffrey Hayes,
6	>	* Pat Fisher, Mike Judd.
7		*/
8
9		import junit.framework.*;
10	<	import java.util.*;
10	>	import java.util.Arrays;
11	>	import java.util.NoSuchElementException;
12	>	import java.util.PropertyPermission;
13		import java.util.concurrent.*;
14	<	import java.io.*;
15	<	import java.security.*;
14	>	import java.util.concurrent.atomic.AtomicReference;
15	>	import static java.util.concurrent.TimeUnit.MILLISECONDS;
16	>	import static java.util.concurrent.TimeUnit.NANOSECONDS;
17	>	import java.security.CodeSource;
18	>	import java.security.Permission;
19	>	import java.security.PermissionCollection;
20	>	import java.security.Permissions;
21	>	import java.security.Policy;
22	>	import java.security.ProtectionDomain;
23	>	import java.security.SecurityPermission;
24
25		/**
26		* Base class for JSR166 Junit TCK tests.  Defines some constants,
27		* utility methods and classes, as well as a simple framework for
28		* helping to make sure that assertions failing in generated threads
29		* cause the associated test that generated them to itself fail (which
30	<	* JUnit doe not otherwise arrange).  The rules for creating such
30	>	* JUnit does not otherwise arrange).  The rules for creating such
31		* tests are:
32		*
33		* <ol>
34		*
35		* <li> All assertions in code running in generated threads must use
36	<	* the forms {@link #threadFail} , {@link #threadAssertTrue} {@link
36	>	* the forms {@link #threadFail}, {@link #threadAssertTrue}, {@link
37		* #threadAssertEquals}, or {@link #threadAssertNull}, (not
38	<	* <tt>fail</tt>, <tt>assertTrue</tt>, etc.) It is OK (but not
38	>	* {@code fail}, {@code assertTrue}, etc.) It is OK (but not
39		* particularly recommended) for other code to use these forms too.
40		* Only the most typically used JUnit assertion methods are defined
41		* this way, but enough to live with.</li>
42		*
43		* <li> If you override {@link #setUp} or {@link #tearDown}, make sure
44	<	* to invoke <tt>super.setUp</tt> and <tt>super.tearDown</tt> within
44	>	* to invoke {@code super.setUp} and {@code super.tearDown} within
45		* them. These methods are used to clear and check for thread
46		* assertion failures.</li>
47		*
48	<	* <li>All delays and timeouts must use one of the constants <tt>
49	<	* SHORT_DELAY_MS</tt>, <tt> SMALL_DELAY_MS</tt>, <tt> MEDIUM_DELAY_MS</tt>,
50	<	* <tt> LONG_DELAY_MS</tt>. The idea here is that a SHORT is always
48	>	* <li>All delays and timeouts must use one of the constants {@code
49	>	* SHORT_DELAY_MS}, {@code SMALL_DELAY_MS}, {@code MEDIUM_DELAY_MS},
50	>	* {@code LONG_DELAY_MS}. The idea here is that a SHORT is always
51		* discriminable from zero time, and always allows enough time for the
52		* small amounts of computation (creating a thread, calling a few
53		* methods, etc) needed to reach a timeout point. Similarly, a SMALL
54		* is always discriminable as larger than SHORT and smaller than
55		* MEDIUM.  And so on. These constants are set to conservative values,
56		* but even so, if there is ever any doubt, they can all be increased
57	<	* in one spot to rerun tests on slower platforms</li>
57	>	* in one spot to rerun tests on slower platforms.</li>
58		*
59		* <li> All threads generated must be joined inside each test case
60	<	* method (or <tt>fail</tt> to do so) before returning from the
61	<	* method. The <tt> joinPool</tt> method can be used to do this when
60	>	* method (or {@code fail} to do so) before returning from the
61	>	* method. The {@code joinPool} method can be used to do this when
62		* using Executors.</li>
63		*
64		* </ol>
#	Line 63 | Line 73 | import java.security.*;
73		* "normal" behaviors differ significantly. And sometimes testcases
74		* cover multiple methods when they cannot be tested in
75		* isolation.</li>
76	<	*
76	>	*
77		* <li> The documentation style for testcases is to provide as javadoc
78		* a simple sentence or two describing the property that the testcase
79		* method purports to test. The javadocs do not say anything about how
#	Line 80 | Line 90 | import java.security.*;
90		* any particular package to simplify things for people integrating
91		* them in TCK test suites.</li>
92		*
93	<	* <li> As a convenience, the <tt>main</tt> of this class (JSR166TestCase)
93	>	* <li> As a convenience, the {@code main} of this class (JSR166TestCase)
94		* runs all JSR166 unit tests.</li>
95		*
96		* </ul>
97		*/
98		public class JSR166TestCase extends TestCase {
99	+	private static final boolean useSecurityManager =
100	+	Boolean.getBoolean("jsr166.useSecurityManager");
101	+
102	+	protected static final boolean expensiveTests =
103	+	Boolean.getBoolean("jsr166.expensiveTests");
104	+
105	+	/**
106	+	* If true, report on stdout all "slow" tests, that is, ones that
107	+	* take more than profileThreshold milliseconds to execute.
108	+	*/
109	+	private static final boolean profileTests =
110	+	Boolean.getBoolean("jsr166.profileTests");
111	+
112	+	/**
113	+	* The number of milliseconds that tests are permitted for
114	+	* execution without being reported, when profileTests is set.
115	+	*/
116	+	private static final long profileThreshold =
117	+	Long.getLong("jsr166.profileThreshold", 100);
118	+
119	+	protected void runTest() throws Throwable {
120	+	if (profileTests)
121	+	runTestProfiled();
122	+	else
123	+	super.runTest();
124	+	}
125	+
126	+	protected void runTestProfiled() throws Throwable {
127	+	long t0 = System.nanoTime();
128	+	try {
129	+	super.runTest();
130	+	} finally {
131	+	long elapsedMillis =
132	+	(System.nanoTime() - t0) / (1000L * 1000L);
133	+	if (elapsedMillis >= profileThreshold)
134	+	System.out.printf("%n%s: %d%n", toString(), elapsedMillis);
135	+	}
136	+	}
137	+
138		/**
139		* Runs all JSR166 unit tests using junit.textui.TestRunner
140	<	*/
141	<	public static void main (String[] args) {
142	<	int iters = 1;
143	<	if (args.length > 0)
144	<	iters = Integer.parseInt(args[0]);
140	>	*/
141	>	public static void main(String[] args) {
142	>	if (useSecurityManager) {
143	>	System.err.println("Setting a permissive security manager");
144	>	Policy.setPolicy(permissivePolicy());
145	>	System.setSecurityManager(new SecurityManager());
146	>	}
147	>	int iters = (args.length == 0) ? 1 : Integer.parseInt(args[0]);
148	>
149		Test s = suite();
150		for (int i = 0; i < iters; ++i) {
151	<	junit.textui.TestRunner.run (s);
151	>	junit.textui.TestRunner.run(s);
152		System.gc();
153		System.runFinalization();
154		}
155		System.exit(0);
156		}
157
158	<	/**
159	<	* Collects all JSR166 unit tests as one suite
160	<	*/
161	<	public static Test suite ( ) {
162	<	TestSuite suite = new TestSuite("JSR166 Unit Tests");
163	<
164	<	suite.addTest(new TestSuite(AbstractExecutorServiceTest.class));
165	<	suite.addTest(new TestSuite(AbstractQueueTest.class));
166	<	suite.addTest(new TestSuite(AbstractQueuedSynchronizerTest.class));
167	<	suite.addTest(new TestSuite(AbstractQueuedLongSynchronizerTest.class));
115	<	suite.addTest(new TestSuite(ArrayBlockingQueueTest.class));
116	<	suite.addTest(new TestSuite(ArrayDequeTest.class));
117	<	suite.addTest(new TestSuite(AtomicBooleanTest.class));
118	<	suite.addTest(new TestSuite(AtomicIntegerArrayTest.class));
119	<	suite.addTest(new TestSuite(AtomicIntegerFieldUpdaterTest.class));
120	<	suite.addTest(new TestSuite(AtomicIntegerTest.class));
121	<	suite.addTest(new TestSuite(AtomicLongArrayTest.class));
122	<	suite.addTest(new TestSuite(AtomicLongFieldUpdaterTest.class));
123	<	suite.addTest(new TestSuite(AtomicLongTest.class));
124	<	suite.addTest(new TestSuite(AtomicMarkableReferenceTest.class));
125	<	suite.addTest(new TestSuite(AtomicReferenceArrayTest.class));
126	<	suite.addTest(new TestSuite(AtomicReferenceFieldUpdaterTest.class));
127	<	suite.addTest(new TestSuite(AtomicReferenceTest.class));
128	<	suite.addTest(new TestSuite(AtomicStampedReferenceTest.class));
129	<	suite.addTest(new TestSuite(ConcurrentHashMapTest.class));
130	<	suite.addTest(new TestSuite(ConcurrentLinkedQueueTest.class));
131	<	suite.addTest(new TestSuite(ConcurrentSkipListMapTest.class));
132	<	suite.addTest(new TestSuite(ConcurrentSkipListSubMapTest.class));
133	<	suite.addTest(new TestSuite(ConcurrentSkipListSetTest.class));
134	<	suite.addTest(new TestSuite(ConcurrentSkipListSubSetTest.class));
135	<	suite.addTest(new TestSuite(CopyOnWriteArrayListTest.class));
136	<	suite.addTest(new TestSuite(CopyOnWriteArraySetTest.class));
137	<	suite.addTest(new TestSuite(CountDownLatchTest.class));
138	<	suite.addTest(new TestSuite(CyclicBarrierTest.class));
139	<	suite.addTest(new TestSuite(DelayQueueTest.class));
140	<	suite.addTest(new TestSuite(ExchangerTest.class));
141	<	suite.addTest(new TestSuite(ExecutorsTest.class));
142	<	suite.addTest(new TestSuite(ExecutorCompletionServiceTest.class));
143	<	suite.addTest(new TestSuite(FutureTaskTest.class));
144	<	suite.addTest(new TestSuite(LinkedBlockingDequeTest.class));
145	<	suite.addTest(new TestSuite(LinkedBlockingQueueTest.class));
146	<	suite.addTest(new TestSuite(LinkedListTest.class));
147	<	suite.addTest(new TestSuite(LockSupportTest.class));
148	<	suite.addTest(new TestSuite(PriorityBlockingQueueTest.class));
149	<	suite.addTest(new TestSuite(PriorityQueueTest.class));
150	<	suite.addTest(new TestSuite(ReentrantLockTest.class));
151	<	suite.addTest(new TestSuite(ReentrantReadWriteLockTest.class));
152	<	suite.addTest(new TestSuite(ScheduledExecutorTest.class));
153	<	suite.addTest(new TestSuite(SemaphoreTest.class));
154	<	suite.addTest(new TestSuite(SynchronousQueueTest.class));
155	<	suite.addTest(new TestSuite(SystemTest.class));
156	<	suite.addTest(new TestSuite(ThreadLocalTest.class));
157	<	suite.addTest(new TestSuite(ThreadPoolExecutorTest.class));
158	<	suite.addTest(new TestSuite(ThreadTest.class));
159	<	suite.addTest(new TestSuite(TimeUnitTest.class));
160	<	suite.addTest(new TestSuite(TreeMapTest.class));
161	<	suite.addTest(new TestSuite(TreeSetTest.class));
162	<
158	>	public static TestSuite newTestSuite(Object... suiteOrClasses) {
159	>	TestSuite suite = new TestSuite();
160	>	for (Object suiteOrClass : suiteOrClasses) {
161	>	if (suiteOrClass instanceof TestSuite)
162	>	suite.addTest((TestSuite) suiteOrClass);
163	>	else if (suiteOrClass instanceof Class)
164	>	suite.addTest(new TestSuite((Class<?>) suiteOrClass));
165	>	else
166	>	throw new ClassCastException("not a test suite or class");
167	>	}
168		return suite;
169		}
170
171	+	/**
172	+	* Collects all JSR166 unit tests as one suite.
173	+	*/
174	+	public static Test suite() {
175	+	return newTestSuite(
176	+	ForkJoinPoolTest.suite(),
177	+	ForkJoinTaskTest.suite(),
178	+	RecursiveActionTest.suite(),
179	+	RecursiveTaskTest.suite(),
180	+	LinkedTransferQueueTest.suite(),
181	+	PhaserTest.suite(),
182	+	ThreadLocalRandomTest.suite(),
183	+	AbstractExecutorServiceTest.suite(),
184	+	AbstractQueueTest.suite(),
185	+	AbstractQueuedSynchronizerTest.suite(),
186	+	AbstractQueuedLongSynchronizerTest.suite(),
187	+	ArrayBlockingQueueTest.suite(),
188	+	ArrayDequeTest.suite(),
189	+	AtomicBooleanTest.suite(),
190	+	AtomicIntegerArrayTest.suite(),
191	+	AtomicIntegerFieldUpdaterTest.suite(),
192	+	AtomicIntegerTest.suite(),
193	+	AtomicLongArrayTest.suite(),
194	+	AtomicLongFieldUpdaterTest.suite(),
195	+	AtomicLongTest.suite(),
196	+	AtomicMarkableReferenceTest.suite(),
197	+	AtomicReferenceArrayTest.suite(),
198	+	AtomicReferenceFieldUpdaterTest.suite(),
199	+	AtomicReferenceTest.suite(),
200	+	AtomicStampedReferenceTest.suite(),
201	+	ConcurrentHashMapTest.suite(),
202	+	ConcurrentLinkedDequeTest.suite(),
203	+	ConcurrentLinkedQueueTest.suite(),
204	+	ConcurrentSkipListMapTest.suite(),
205	+	ConcurrentSkipListSubMapTest.suite(),
206	+	ConcurrentSkipListSetTest.suite(),
207	+	ConcurrentSkipListSubSetTest.suite(),
208	+	CopyOnWriteArrayListTest.suite(),
209	+	CopyOnWriteArraySetTest.suite(),
210	+	CountDownLatchTest.suite(),
211	+	CyclicBarrierTest.suite(),
212	+	DelayQueueTest.suite(),
213	+	EntryTest.suite(),
214	+	ExchangerTest.suite(),
215	+	ExecutorsTest.suite(),
216	+	ExecutorCompletionServiceTest.suite(),
217	+	FutureTaskTest.suite(),
218	+	LinkedBlockingDequeTest.suite(),
219	+	LinkedBlockingQueueTest.suite(),
220	+	LinkedListTest.suite(),
221	+	LockSupportTest.suite(),
222	+	PriorityBlockingQueueTest.suite(),
223	+	PriorityQueueTest.suite(),
224	+	ReentrantLockTest.suite(),
225	+	ReentrantReadWriteLockTest.suite(),
226	+	ScheduledExecutorTest.suite(),
227	+	ScheduledExecutorSubclassTest.suite(),
228	+	SemaphoreTest.suite(),
229	+	SynchronousQueueTest.suite(),
230	+	SystemTest.suite(),
231	+	ThreadLocalTest.suite(),
232	+	ThreadPoolExecutorTest.suite(),
233	+	ThreadPoolExecutorSubclassTest.suite(),
234	+	ThreadTest.suite(),
235	+	TimeUnitTest.suite(),
236	+	TreeMapTest.suite(),
237	+	TreeSetTest.suite(),
238	+	TreeSubMapTest.suite(),
239	+	TreeSubSetTest.suite());
240	+	}
241	+
242
243		public static long SHORT_DELAY_MS;
244		public static long SMALL_DELAY_MS;
#	Line 171 | Line 247 | public class JSR166TestCase extends Test
247
248
249		/**
250	<	* Return the shortest timed delay. This could
250	>	* Returns the shortest timed delay. This could
251		* be reimplemented to use for example a Property.
252	<	*/
252	>	*/
253		protected long getShortDelay() {
254		return 50;
255		}
256
257
258		/**
259	<	* Set delays as multiples of SHORT_DELAY.
259	>	* Sets delays as multiples of SHORT_DELAY.
260		*/
261	<	protected  void setDelays() {
261	>	protected void setDelays() {
262		SHORT_DELAY_MS = getShortDelay();
263	<	SMALL_DELAY_MS = SHORT_DELAY_MS * 5;
263	>	SMALL_DELAY_MS  = SHORT_DELAY_MS * 5;
264		MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10;
265	<	LONG_DELAY_MS = SHORT_DELAY_MS * 50;
265	>	LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
266		}
267
268		/**
269	<	* Flag set true if any threadAssert methods fail
269	>	* The first exception encountered if any threadAssertXXX method fails.
270		*/
271	<	volatile boolean threadFailed;
271	>	private final AtomicReference<Throwable> threadFailure
272	>	= new AtomicReference<Throwable>(null);
273
274		/**
275	<	* Initialize test to indicate that no thread assertions have failed
275	>	* Records an exception so that it can be rethrown later in the test
276	>	* harness thread, triggering a test case failure.  Only the first
277	>	* failure is recorded; subsequent calls to this method from within
278	>	* the same test have no effect.
279		*/
280	<	public void setUp() {
280	>	public void threadRecordFailure(Throwable t) {
281	>	threadFailure.compareAndSet(null, t);
282	>	}
283	>
284	>	public void setUp() {
285		setDelays();
202	–	threadFailed = false;
286		}
287
288		/**
289	<	* Trigger test case failure if any thread assertions have failed
289	>	* Triggers test case failure if any thread assertions have failed,
290	>	* by rethrowing, in the test harness thread, any exception recorded
291	>	* earlier by threadRecordFailure.
292		*/
293	<	public void tearDown() {
294	<	assertFalse(threadFailed);
293	>	public void tearDown() throws Exception {
294	>	Throwable t = threadFailure.getAndSet(null);
295	>	if (t != null) {
296	>	if (t instanceof Error)
297	>	throw (Error) t;
298	>	else if (t instanceof RuntimeException)
299	>	throw (RuntimeException) t;
300	>	else if (t instanceof Exception)
301	>	throw (Exception) t;
302	>	else {
303	>	AssertionFailedError afe =
304	>	new AssertionFailedError(t.toString());
305	>	afe.initCause(t);
306	>	throw afe;
307	>	}
308	>	}
309		}
310
311		/**
312	<	* Fail, also setting status to indicate current testcase should fail
313	<	*/
312	>	* Just like fail(reason), but additionally recording (using
313	>	* threadRecordFailure) any AssertionFailedError thrown, so that
314	>	* the current testcase will fail.
315	>	*/
316		public void threadFail(String reason) {
317	<	threadFailed = true;
318	<	fail(reason);
317	>	try {
318	>	fail(reason);
319	>	} catch (AssertionFailedError t) {
320	>	threadRecordFailure(t);
321	>	fail(reason);
322	>	}
323		}
324
325		/**
326	<	* If expression not true, set status to indicate current testcase
327	<	* should fail
328	<	*/
326	>	* Just like assertTrue(b), but additionally recording (using
327	>	* threadRecordFailure) any AssertionFailedError thrown, so that
328	>	* the current testcase will fail.
329	>	*/
330		public void threadAssertTrue(boolean b) {
331	<	if (!b) {
226	<	threadFailed = true;
331	>	try {
332		assertTrue(b);
333	+	} catch (AssertionFailedError t) {
334	+	threadRecordFailure(t);
335	+	throw t;
336		}
337		}
338
339		/**
340	<	* If expression not false, set status to indicate current testcase
341	<	* should fail
342	<	*/
340	>	* Just like assertFalse(b), but additionally recording (using
341	>	* threadRecordFailure) any AssertionFailedError thrown, so that
342	>	* the current testcase will fail.
343	>	*/
344		public void threadAssertFalse(boolean b) {
345	<	if (b) {
237	<	threadFailed = true;
345	>	try {
346		assertFalse(b);
347	+	} catch (AssertionFailedError t) {
348	+	threadRecordFailure(t);
349	+	throw t;
350		}
351		}
352
353		/**
354	<	* If argument not null, set status to indicate current testcase
355	<	* should fail
356	<	*/
354	>	* Just like assertNull(x), but additionally recording (using
355	>	* threadRecordFailure) any AssertionFailedError thrown, so that
356	>	* the current testcase will fail.
357	>	*/
358		public void threadAssertNull(Object x) {
359	<	if (x != null) {
248	<	threadFailed = true;
359	>	try {
360		assertNull(x);
361	+	} catch (AssertionFailedError t) {
362	+	threadRecordFailure(t);
363	+	throw t;
364		}
365		}
366
367		/**
368	<	* If arguments not equal, set status to indicate current testcase
369	<	* should fail
370	<	*/
368	>	* Just like assertEquals(x, y), but additionally recording (using
369	>	* threadRecordFailure) any AssertionFailedError thrown, so that
370	>	* the current testcase will fail.
371	>	*/
372		public void threadAssertEquals(long x, long y) {
373	<	if (x != y) {
259	<	threadFailed = true;
373	>	try {
374		assertEquals(x, y);
375	+	} catch (AssertionFailedError t) {
376	+	threadRecordFailure(t);
377	+	throw t;
378		}
379		}
380
381		/**
382	<	* If arguments not equal, set status to indicate current testcase
383	<	* should fail
384	<	*/
382	>	* Just like assertEquals(x, y), but additionally recording (using
383	>	* threadRecordFailure) any AssertionFailedError thrown, so that
384	>	* the current testcase will fail.
385	>	*/
386		public void threadAssertEquals(Object x, Object y) {
387	<	if (x != y && (x == null || !x.equals(y))) {
270	<	threadFailed = true;
387	>	try {
388		assertEquals(x, y);
389	+	} catch (AssertionFailedError t) {
390	+	threadRecordFailure(t);
391	+	throw t;
392	+	} catch (Throwable t) {
393	+	threadUnexpectedException(t);
394		}
395		}
396
397		/**
398	<	* threadFail with message "should throw exception"
399	<	*/
398	>	* Just like assertSame(x, y), but additionally recording (using
399	>	* threadRecordFailure) any AssertionFailedError thrown, so that
400	>	* the current testcase will fail.
401	>	*/
402	>	public void threadAssertSame(Object x, Object y) {
403	>	try {
404	>	assertSame(x, y);
405	>	} catch (AssertionFailedError t) {
406	>	threadRecordFailure(t);
407	>	throw t;
408	>	}
409	>	}
410	>
411	>	/**
412	>	* Calls threadFail with message "should throw exception".
413	>	*/
414		public void threadShouldThrow() {
415	<	threadFailed = true;
280	<	fail("should throw exception");
415	>	threadFail("should throw exception");
416		}
417
418		/**
419	<	* threadFail with message "Unexpected exception"
419	>	* Calls threadFail with message "should throw" + exceptionName.
420		*/
421	<	public void threadUnexpectedException() {
422	<	threadFailed = true;
288	<	fail("Unexpected exception");
421	>	public void threadShouldThrow(String exceptionName) {
422	>	threadFail("should throw " + exceptionName);
423		}
424
425	+	/**
426	+	* Records the given exception using {@link #threadRecordFailure},
427	+	* then rethrows the exception, wrapping it in an
428	+	* AssertionFailedError if necessary.
429	+	*/
430	+	public void threadUnexpectedException(Throwable t) {
431	+	threadRecordFailure(t);
432	+	t.printStackTrace();
433	+	if (t instanceof RuntimeException)
434	+	throw (RuntimeException) t;
435	+	else if (t instanceof Error)
436	+	throw (Error) t;
437	+	else {
438	+	AssertionFailedError afe =
439	+	new AssertionFailedError("unexpected exception: " + t);
440	+	t.initCause(t);
441	+	throw afe;
442	+	}
443	+	}
444
445		/**
446	<	* Wait out termination of a thread pool or fail doing so
446	>	* Waits out termination of a thread pool or fails doing so.
447		*/
448		public void joinPool(ExecutorService exec) {
449		try {
450		exec.shutdown();
451	<	assertTrue(exec.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS));
452	<	} catch(SecurityException ok) {
451	>	assertTrue("ExecutorService did not terminate in a timely manner",
452	>	exec.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS));
453	>	} catch (SecurityException ok) {
454		// Allowed in case test doesn't have privs
455	<	} catch(InterruptedException ie) {
456	<	fail("Unexpected exception");
455	>	} catch (InterruptedException ie) {
456	>	fail("Unexpected InterruptedException");
457		}
458		}
459
460
461		/**
462	<	* fail with message "should throw exception"
463	<	*/
462	>	* Fails with message "should throw exception".
463	>	*/
464		public void shouldThrow() {
465		fail("Should throw exception");
466		}
467
468		/**
469	<	* fail with message "Unexpected exception"
469	>	* Fails with message "should throw " + exceptionName.
470		*/
471	<	public void unexpectedException() {
472	<	fail("Unexpected exception");
471	>	public void shouldThrow(String exceptionName) {
472	>	fail("Should throw " + exceptionName);
473		}
474
321	–
475		/**
476		* The number of elements to place in collections, arrays, etc.
477		*/
478	<	static final int SIZE = 20;
478	>	public static final int SIZE = 20;
479
480		// Some convenient Integer constants
481
482	<	static final Integer zero = new Integer(0);
483	<	static final Integer one = new Integer(1);
484	<	static final Integer two = new Integer(2);
485	<	static final Integer three  = new Integer(3);
486	<	static final Integer four  = new Integer(4);
487	<	static final Integer five  = new Integer(5);
488	<	static final Integer six = new Integer(6);
489	<	static final Integer seven = new Integer(7);
490	<	static final Integer eight = new Integer(8);
491	<	static final Integer nine = new Integer(9);
492	<	static final Integer m1  = new Integer(-1);
493	<	static final Integer m2  = new Integer(-2);
494	<	static final Integer m3  = new Integer(-3);
495	<	static final Integer m4 = new Integer(-4);
496	<	static final Integer m5 = new Integer(-5);
497	<	static final Integer m10 = new Integer(-10);
482	>	public static final Integer zero  = new Integer(0);
483	>	public static final Integer one   = new Integer(1);
484	>	public static final Integer two   = new Integer(2);
485	>	public static final Integer three = new Integer(3);
486	>	public static final Integer four  = new Integer(4);
487	>	public static final Integer five  = new Integer(5);
488	>	public static final Integer six   = new Integer(6);
489	>	public static final Integer seven = new Integer(7);
490	>	public static final Integer eight = new Integer(8);
491	>	public static final Integer nine  = new Integer(9);
492	>	public static final Integer m1  = new Integer(-1);
493	>	public static final Integer m2  = new Integer(-2);
494	>	public static final Integer m3  = new Integer(-3);
495	>	public static final Integer m4  = new Integer(-4);
496	>	public static final Integer m5  = new Integer(-5);
497	>	public static final Integer m6  = new Integer(-6);
498	>	public static final Integer m10 = new Integer(-10);
499
500
501		/**
502	+	* Runs Runnable r with a security policy that permits precisely
503	+	* the specified permissions.  If there is no current security
504	+	* manager, the runnable is run twice, both with and without a
505	+	* security manager.  We require that any security manager permit
506	+	* getPolicy/setPolicy.
507	+	*/
508	+	public void runWithPermissions(Runnable r, Permission... permissions) {
509	+	SecurityManager sm = System.getSecurityManager();
510	+	if (sm == null) {
511	+	r.run();
512	+	Policy savedPolicy = Policy.getPolicy();
513	+	try {
514	+	Policy.setPolicy(permissivePolicy());
515	+	System.setSecurityManager(new SecurityManager());
516	+	runWithPermissions(r, permissions);
517	+	} finally {
518	+	System.setSecurityManager(null);
519	+	Policy.setPolicy(savedPolicy);
520	+	}
521	+	} else {
522	+	Policy savedPolicy = Policy.getPolicy();
523	+	AdjustablePolicy policy = new AdjustablePolicy(permissions);
524	+	Policy.setPolicy(policy);
525	+
526	+	try {
527	+	r.run();
528	+	} finally {
529	+	policy.addPermission(new SecurityPermission("setPolicy"));
530	+	Policy.setPolicy(savedPolicy);
531	+	}
532	+	}
533	+	}
534	+
535	+	/**
536	+	* Runs a runnable without any permissions.
537	+	*/
538	+	public void runWithoutPermissions(Runnable r) {
539	+	runWithPermissions(r);
540	+	}
541	+
542	+	/**
543		* A security policy where new permissions can be dynamically added
544		* or all cleared.
545		*/
546	<	static class AdjustablePolicy extends java.security.Policy {
546	>	public static class AdjustablePolicy extends java.security.Policy {
547		Permissions perms = new Permissions();
548	<	AdjustablePolicy() { }
548	>	AdjustablePolicy(Permission... permissions) {
549	>	for (Permission permission : permissions)
550	>	perms.add(permission);
551	>	}
552		void addPermission(Permission perm) { perms.add(perm); }
553		void clearPermissions() { perms = new Permissions(); }
554	<	public PermissionCollection getPermissions(CodeSource cs) {
555	<	return perms;
556	<	}
557	<	public PermissionCollection getPermissions(ProtectionDomain pd) {
558	<	return perms;
559	<	}
560	<	public boolean implies(ProtectionDomain pd, Permission p) {
561	<	return perms.implies(p);
562	<	}
563	<	public void refresh() {}
554	>	public PermissionCollection getPermissions(CodeSource cs) {
555	>	return perms;
556	>	}
557	>	public PermissionCollection getPermissions(ProtectionDomain pd) {
558	>	return perms;
559	>	}
560	>	public boolean implies(ProtectionDomain pd, Permission p) {
561	>	return perms.implies(p);
562	>	}
563	>	public void refresh() {}
564		}
565
566	<
567	<	// Some convenient Runnable classes
568	<
569	<	static class NoOpRunnable implements Runnable {
570	<	public void run() {}
566	>	/**
567	>	* Returns a policy containing all the permissions we ever need.
568	>	*/
569	>	public static Policy permissivePolicy() {
570	>	return new AdjustablePolicy
571	>	// Permissions j.u.c. needs directly
572	>	(new RuntimePermission("modifyThread"),
573	>	new RuntimePermission("getClassLoader"),
574	>	new RuntimePermission("setContextClassLoader"),
575	>	// Permissions needed to change permissions!
576	>	new SecurityPermission("getPolicy"),
577	>	new SecurityPermission("setPolicy"),
578	>	new RuntimePermission("setSecurityManager"),
579	>	// Permissions needed by the junit test harness
580	>	new RuntimePermission("accessDeclaredMembers"),
581	>	new PropertyPermission("*", "read"),
582	>	new java.io.FilePermission("<<ALL FILES>>", "read"));
583		}
584
585	<	static class NoOpCallable implements Callable {
586	<	public Object call() { return Boolean.TRUE; }
585	>	/**
586	>	* Sleeps until the given time has elapsed.
587	>	* Throws AssertionFailedError if interrupted.
588	>	*/
589	>	void sleep(long millis) {
590	>	try {
591	>	Thread.sleep(millis);
592	>	} catch (InterruptedException ie) {
593	>	AssertionFailedError afe =
594	>	new AssertionFailedError("Unexpected InterruptedException");
595	>	afe.initCause(ie);
596	>	throw afe;
597	>	}
598		}
599
600	<	static final String TEST_STRING = "a test string";
600	>	/**
601	>	* Sleeps until the timeout has elapsed, or interrupted.
602	>	* Does <em>NOT</em> throw InterruptedException.
603	>	*/
604	>	void sleepTillInterrupted(long timeoutMillis) {
605	>	try {
606	>	Thread.sleep(timeoutMillis);
607	>	} catch (InterruptedException wakeup) {}
608	>	}
609
610	<	static class StringTask implements Callable<String> {
611	<	public String call() { return TEST_STRING; }
610	>	/**
611	>	* Waits up to the specified number of milliseconds for the given
612	>	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
613	>	*/
614	>	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
615	>	long timeoutNanos = timeoutMillis * 1000L * 1000L;
616	>	long t0 = System.nanoTime();
617	>	for (;;) {
618	>	Thread.State s = thread.getState();
619	>	if (s == Thread.State.BLOCKED ||
620	>	s == Thread.State.WAITING ||
621	>	s == Thread.State.TIMED_WAITING)
622	>	return;
623	>	else if (s == Thread.State.TERMINATED)
624	>	fail("Unexpected thread termination");
625	>	else if (System.nanoTime() - t0 > timeoutNanos) {
626	>	threadAssertTrue(thread.isAlive());
627	>	return;
628	>	}
629	>	Thread.yield();
630	>	}
631		}
632
633	<	static class NPETask implements Callable<String> {
634	<	public String call() { throw new NullPointerException(); }
633	>	/**
634	>	* Returns the number of milliseconds since time given by
635	>	* startNanoTime, which must have been previously returned from a
636	>	* call to {@link System.nanoTime()}.
637	>	*/
638	>	long millisElapsedSince(long startNanoTime) {
639	>	return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
640		}
641
642	<	static class CallableOne implements Callable<Integer> {
643	<	public Integer call() { return one; }
642	>	/**
643	>	* Returns a new started daemon Thread running the given runnable.
644	>	*/
645	>	Thread newStartedThread(Runnable runnable) {
646	>	Thread t = new Thread(runnable);
647	>	t.setDaemon(true);
648	>	t.start();
649	>	return t;
650		}
651
652	<	class ShortRunnable implements Runnable {
653	<	public void run() {
654	<	try {
655	<	Thread.sleep(SHORT_DELAY_MS);
656	<	}
657	<	catch(Exception e) {
658	<	threadUnexpectedException();
652	>	/**
653	>	* Waits for the specified time (in milliseconds) for the thread
654	>	* to terminate (using {@link Thread#join(long)}), else interrupts
655	>	* the thread (in the hope that it may terminate later) and fails.
656	>	*/
657	>	void awaitTermination(Thread t, long timeoutMillis) {
658	>	try {
659	>	t.join(timeoutMillis);
660	>	} catch (InterruptedException ie) {
661	>	threadUnexpectedException(ie);
662	>	} finally {
663	>	if (t.isAlive()) {
664	>	t.interrupt();
665	>	fail("Test timed out");
666		}
667		}
668		}
669
670	<	class ShortInterruptedRunnable implements Runnable {
671	<	public void run() {
670	>	// Some convenient Runnable classes
671	>
672	>	public abstract class CheckedRunnable implements Runnable {
673	>	protected abstract void realRun() throws Throwable;
674	>
675	>	public final void run() {
676		try {
677	<	Thread.sleep(SHORT_DELAY_MS);
678	<	threadShouldThrow();
679	<	}
410	<	catch(InterruptedException success) {
677	>	realRun();
678	>	} catch (Throwable t) {
679	>	threadUnexpectedException(t);
680		}
681		}
682		}
683
684	<	class SmallRunnable implements Runnable {
685	<	public void run() {
684	>	public abstract class RunnableShouldThrow implements Runnable {
685	>	protected abstract void realRun() throws Throwable;
686	>
687	>	final Class<?> exceptionClass;
688	>
689	>	<T extends Throwable> RunnableShouldThrow(Class<T> exceptionClass) {
690	>	this.exceptionClass = exceptionClass;
691	>	}
692	>
693	>	public final void run() {
694		try {
695	<	Thread.sleep(SMALL_DELAY_MS);
696	<	}
697	<	catch(Exception e) {
698	<	threadUnexpectedException();
695	>	realRun();
696	>	threadShouldThrow(exceptionClass.getSimpleName());
697	>	} catch (Throwable t) {
698	>	if (! exceptionClass.isInstance(t))
699	>	threadUnexpectedException(t);
700		}
701		}
702		}
703
704	<	class SmallPossiblyInterruptedRunnable implements Runnable {
705	<	public void run() {
704	>	public abstract class ThreadShouldThrow extends Thread {
705	>	protected abstract void realRun() throws Throwable;
706	>
707	>	final Class<?> exceptionClass;
708	>
709	>	<T extends Throwable> ThreadShouldThrow(Class<T> exceptionClass) {
710	>	this.exceptionClass = exceptionClass;
711	>	}
712	>
713	>	public final void run() {
714		try {
715	<	Thread.sleep(SMALL_DELAY_MS);
716	<	}
717	<	catch(Exception e) {
715	>	realRun();
716	>	threadShouldThrow(exceptionClass.getSimpleName());
717	>	} catch (Throwable t) {
718	>	if (! exceptionClass.isInstance(t))
719	>	threadUnexpectedException(t);
720		}
721		}
722		}
723
724	<	class SmallCallable implements Callable {
725	<	public Object call() {
724	>	public abstract class CheckedInterruptedRunnable implements Runnable {
725	>	protected abstract void realRun() throws Throwable;
726	>
727	>	public final void run() {
728		try {
729	<	Thread.sleep(SMALL_DELAY_MS);
729	>	realRun();
730	>	threadShouldThrow("InterruptedException");
731	>	} catch (InterruptedException success) {
732	>	} catch (Throwable t) {
733	>	threadUnexpectedException(t);
734		}
441	–	catch(Exception e) {
442	–	threadUnexpectedException();
443	–	}
444	–	return Boolean.TRUE;
735		}
736		}
737
738	<	class SmallInterruptedRunnable implements Runnable {
739	<	public void run() {
738	>	public abstract class CheckedCallable<T> implements Callable<T> {
739	>	protected abstract T realCall() throws Throwable;
740	>
741	>	public final T call() {
742		try {
743	<	Thread.sleep(SMALL_DELAY_MS);
744	<	threadShouldThrow();
745	<	}
746	<	catch(InterruptedException success) {
743	>	return realCall();
744	>	} catch (Throwable t) {
745	>	threadUnexpectedException(t);
746	>	return null;
747		}
748		}
749		}
750
751	+	public abstract class CheckedInterruptedCallable<T>
752	+	implements Callable<T> {
753	+	protected abstract T realCall() throws Throwable;
754
755	<	class MediumRunnable implements Runnable {
461	<	public void run() {
755	>	public final T call() {
756		try {
757	<	Thread.sleep(MEDIUM_DELAY_MS);
758	<	}
759	<	catch(Exception e) {
760	<	threadUnexpectedException();
757	>	T result = realCall();
758	>	threadShouldThrow("InterruptedException");
759	>	return result;
760	>	} catch (InterruptedException success) {
761	>	} catch (Throwable t) {
762	>	threadUnexpectedException(t);
763		}
764	+	return null;
765		}
766		}
767
768	<	class MediumInterruptedRunnable implements Runnable {
769	<	public void run() {
768	>	public static class NoOpRunnable implements Runnable {
769	>	public void run() {}
770	>	}
771	>
772	>	public static class NoOpCallable implements Callable {
773	>	public Object call() { return Boolean.TRUE; }
774	>	}
775	>
776	>	public static final String TEST_STRING = "a test string";
777	>
778	>	public static class StringTask implements Callable<String> {
779	>	public String call() { return TEST_STRING; }
780	>	}
781	>
782	>	public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
783	>	return new CheckedCallable<String>() {
784	>	protected String realCall() {
785	>	try {
786	>	latch.await();
787	>	} catch (InterruptedException quittingTime) {}
788	>	return TEST_STRING;
789	>	}};
790	>	}
791	>
792	>	public static class NPETask implements Callable<String> {
793	>	public String call() { throw new NullPointerException(); }
794	>	}
795	>
796	>	public static class CallableOne implements Callable<Integer> {
797	>	public Integer call() { return one; }
798	>	}
799	>
800	>	public class ShortRunnable extends CheckedRunnable {
801	>	protected void realRun() throws Throwable {
802	>	Thread.sleep(SHORT_DELAY_MS);
803	>	}
804	>	}
805	>
806	>	public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
807	>	protected void realRun() throws InterruptedException {
808	>	Thread.sleep(SHORT_DELAY_MS);
809	>	}
810	>	}
811	>
812	>	public class SmallRunnable extends CheckedRunnable {
813	>	protected void realRun() throws Throwable {
814	>	Thread.sleep(SMALL_DELAY_MS);
815	>	}
816	>	}
817	>
818	>	public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
819	>	protected void realRun() {
820		try {
821	<	Thread.sleep(MEDIUM_DELAY_MS);
822	<	threadShouldThrow();
476	<	}
477	<	catch(InterruptedException success) {
478	<	}
821	>	Thread.sleep(SMALL_DELAY_MS);
822	>	} catch (InterruptedException ok) {}
823		}
824		}
825
826	<	class MediumPossiblyInterruptedRunnable implements Runnable {
827	<	public void run() {
826	>	public class SmallCallable extends CheckedCallable {
827	>	protected Object realCall() throws InterruptedException {
828	>	Thread.sleep(SMALL_DELAY_MS);
829	>	return Boolean.TRUE;
830	>	}
831	>	}
832	>
833	>	public class MediumRunnable extends CheckedRunnable {
834	>	protected void realRun() throws Throwable {
835	>	Thread.sleep(MEDIUM_DELAY_MS);
836	>	}
837	>	}
838	>
839	>	public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
840	>	protected void realRun() throws InterruptedException {
841	>	Thread.sleep(MEDIUM_DELAY_MS);
842	>	}
843	>	}
844	>
845	>	public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
846	>	return new CheckedRunnable() {
847	>	protected void realRun() {
848	>	try {
849	>	Thread.sleep(timeoutMillis);
850	>	} catch (InterruptedException ok) {}
851	>	}};
852	>	}
853	>
854	>	public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
855	>	protected void realRun() {
856		try {
857		Thread.sleep(MEDIUM_DELAY_MS);
858	<	}
487	<	catch(InterruptedException success) {
488	<	}
858	>	} catch (InterruptedException ok) {}
859		}
860		}
861
862	<	class LongPossiblyInterruptedRunnable implements Runnable {
863	<	public void run() {
862	>	public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
863	>	protected void realRun() {
864		try {
865		Thread.sleep(LONG_DELAY_MS);
866	<	}
497	<	catch(InterruptedException success) {
498	<	}
866	>	} catch (InterruptedException ok) {}
867		}
868		}
869
870		/**
871		* For use as ThreadFactory in constructors
872		*/
873	<	static class SimpleThreadFactory implements ThreadFactory{
874	<	public Thread newThread(Runnable r){
873	>	public static class SimpleThreadFactory implements ThreadFactory {
874	>	public Thread newThread(Runnable r) {
875		return new Thread(r);
876	<	}
876	>	}
877		}
878
879	<	static class TrackedShortRunnable implements Runnable {
880	<	volatile boolean done = false;
879	>	public interface TrackedRunnable extends Runnable {
880	>	boolean isDone();
881	>	}
882	>
883	>	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
884	>	return new TrackedRunnable() {
885	>	private volatile boolean done = false;
886	>	public boolean isDone() { return done; }
887	>	public void run() {
888	>	try {
889	>	Thread.sleep(timeoutMillis);
890	>	done = true;
891	>	} catch (InterruptedException ok) {}
892	>	}
893	>	};
894	>	}
895	>
896	>	public static class TrackedShortRunnable implements Runnable {
897	>	public volatile boolean done = false;
898	>	public void run() {
899	>	try {
900	>	Thread.sleep(SHORT_DELAY_MS);
901	>	done = true;
902	>	} catch (InterruptedException ok) {}
903	>	}
904	>	}
905	>
906	>	public static class TrackedSmallRunnable implements Runnable {
907	>	public volatile boolean done = false;
908		public void run() {
909		try {
910		Thread.sleep(SMALL_DELAY_MS);
911		done = true;
912	<	} catch(Exception e){
518	<	}
912	>	} catch (InterruptedException ok) {}
913		}
914		}
915
916	<	static class TrackedMediumRunnable implements Runnable {
917	<	volatile boolean done = false;
916	>	public static class TrackedMediumRunnable implements Runnable {
917	>	public volatile boolean done = false;
918		public void run() {
919		try {
920		Thread.sleep(MEDIUM_DELAY_MS);
921		done = true;
922	<	} catch(Exception e){
529	<	}
922	>	} catch (InterruptedException ok) {}
923		}
924		}
925
926	<	static class TrackedLongRunnable implements Runnable {
927	<	volatile boolean done = false;
926	>	public static class TrackedLongRunnable implements Runnable {
927	>	public volatile boolean done = false;
928		public void run() {
929		try {
930		Thread.sleep(LONG_DELAY_MS);
931		done = true;
932	<	} catch(Exception e){
540	<	}
932	>	} catch (InterruptedException ok) {}
933		}
934		}
935
936	<	static class TrackedNoOpRunnable implements Runnable {
937	<	volatile boolean done = false;
936	>	public static class TrackedNoOpRunnable implements Runnable {
937	>	public volatile boolean done = false;
938		public void run() {
939		done = true;
940		}
941		}
942
943	<	static class TrackedCallable implements Callable {
944	<	volatile boolean done = false;
943	>	public static class TrackedCallable implements Callable {
944	>	public volatile boolean done = false;
945		public Object call() {
946		try {
947		Thread.sleep(SMALL_DELAY_MS);
948		done = true;
949	<	} catch(Exception e){
558	<	}
949	>	} catch (InterruptedException ok) {}
950		return Boolean.TRUE;
951		}
952		}
953
954	+	/**
955	+	* Analog of CheckedRunnable for RecursiveAction
956	+	*/
957	+	public abstract class CheckedRecursiveAction extends RecursiveAction {
958	+	protected abstract void realCompute() throws Throwable;
959	+
960	+	public final void compute() {
961	+	try {
962	+	realCompute();
963	+	} catch (Throwable t) {
964	+	threadUnexpectedException(t);
965	+	}
966	+	}
967	+	}
968	+
969	+	/**
970	+	* Analog of CheckedCallable for RecursiveTask
971	+	*/
972	+	public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
973	+	protected abstract T realCompute() throws Throwable;
974	+
975	+	public final T compute() {
976	+	try {
977	+	return realCompute();
978	+	} catch (Throwable t) {
979	+	threadUnexpectedException(t);
980	+	return null;
981	+	}
982	+	}
983	+	}
984
985		/**
986		* For use as RejectedExecutionHandler in constructors
987		*/
988	<	static class NoOpREHandler implements RejectedExecutionHandler{
989	<	public void rejectedExecution(Runnable r, ThreadPoolExecutor executor){}
988	>	public static class NoOpREHandler implements RejectedExecutionHandler {
989	>	public void rejectedExecution(Runnable r,
990	>	ThreadPoolExecutor executor) {}
991		}
992	<
993	<
992	>
993	>	/**
994	>	* A CyclicBarrier that fails with AssertionFailedErrors instead
995	>	* of throwing checked exceptions.
996	>	*/
997	>	public class CheckedBarrier extends CyclicBarrier {
998	>	public CheckedBarrier(int parties) { super(parties); }
999	>
1000	>	public int await() {
1001	>	try {
1002	>	return super.await();
1003	>	} catch (Exception e) {
1004	>	AssertionFailedError afe =
1005	>	new AssertionFailedError("Unexpected exception: " + e);
1006	>	afe.initCause(e);
1007	>	throw afe;
1008	>	}
1009	>	}
1010	>	}
1011	>
1012	>	public void checkEmpty(BlockingQueue q) {
1013	>	try {
1014	>	assertTrue(q.isEmpty());
1015	>	assertEquals(0, q.size());
1016	>	assertNull(q.peek());
1017	>	assertNull(q.poll());
1018	>	assertNull(q.poll(0, MILLISECONDS));
1019	>	assertEquals(q.toString(), "[]");
1020	>	assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1021	>	assertFalse(q.iterator().hasNext());
1022	>	try {
1023	>	q.element();
1024	>	shouldThrow();
1025	>	} catch (NoSuchElementException success) {}
1026	>	try {
1027	>	q.iterator().next();
1028	>	shouldThrow();
1029	>	} catch (NoSuchElementException success) {}
1030	>	try {
1031	>	q.remove();
1032	>	shouldThrow();
1033	>	} catch (NoSuchElementException success) {}
1034	>	} catch (InterruptedException ie) {
1035	>	threadUnexpectedException(ie);
1036	>	}
1037	>	}
1038	>
1039		}

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