ViewVC Help

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

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

Comparing jsr166/src/test/tck/ReentrantLockTest.java (file contents):
Revision 1.2 by dl, Sat Sep 6 19:36:05 2003 UTC vs.
Revision 1.13 by dl, Sun Dec 28 21:56:18 2003 UTC

#	Line 1 | Line 1
1		/*
2	<	* Written by members of JCP JSR-166 Expert Group and released to the
3	<	* public domain. Use, modify, and redistribute this code in any way
4	<	* without acknowledgement. Other contributors include Andrew Wright,
5	<	* Jeffrey Hayes, Pat Fischer, Mike Judd.
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.
7		*/
8
9		import junit.framework.*;
10		import java.util.concurrent.locks.*;
11		import java.util.concurrent.*;
12	+	import java.util.*;
13	+	import java.io.*;
14
15	<	public class ReentrantLockTest extends TestCase {
13	<	static int HOLD_COUNT_TEST_LIMIT = 20;
14	<
15	>	public class ReentrantLockTest extends JSR166TestCase {
16		public static void main(String[] args) {
17		junit.textui.TestRunner.run (suite());
18		}
18	–
19		public static Test suite() {
20		return new TestSuite(ReentrantLockTest.class);
21		}
22
23	<	private static long SHORT_DELAY_MS = 100;
24	<	private static long MEDIUM_DELAY_MS = 1000;
25	<	private static long LONG_DELAY_MS = 10000;
26	<
27	<	/*
28	<	* Unlocks an unlocked lock, throws Illegal Monitor State
29	<	*
23	>	/**
24	>	* A runnable calling lockInterruptibly
25		*/
26	<
27	<	public void testIllegalMonitorStateException(){
26	>	class InterruptibleLockRunnable implements Runnable {
27	>	final ReentrantLock lock;
28	>	InterruptibleLockRunnable(ReentrantLock l) { lock = l; }
29	>	public void run() {
30	>	try {
31	>	lock.lockInterruptibly();
32	>	} catch(InterruptedException success){}
33	>	}
34	>	}
35	>
36	>
37	>	/**
38	>	* A runnable calling lockInterruptibly that expects to be
39	>	* interrupted
40	>	*/
41	>	class InterruptedLockRunnable implements Runnable {
42	>	final ReentrantLock lock;
43	>	InterruptedLockRunnable(ReentrantLock l) { lock = l; }
44	>	public void run() {
45	>	try {
46	>	lock.lockInterruptibly();
47	>	threadShouldThrow();
48	>	} catch(InterruptedException success){}
49	>	}
50	>	}
51	>
52	>	/**
53	>	* Subclass to expose protected methods
54	>	*/
55	>	static class PublicReentrantLock extends ReentrantLock {
56	>	PublicReentrantLock() { super(); }
57	>	public Collection<Thread> getQueuedThreads() {
58	>	return super.getQueuedThreads();
59	>	}
60	>	public Collection<Thread> getWaitingThreads(Condition c) {
61	>	return super.getWaitingThreads(c);
62	>	}
63	>
64	>
65	>	}
66	>
67	>	/**
68	>	* Constructor sets given fairness
69	>	*/
70	>	public void testConstructor() {
71		ReentrantLock rl = new ReentrantLock();
72	<	try{
73	<	rl.unlock();
74	<	fail("Should of thown Illegal Monitor State Exception");
72	>	assertFalse(rl.isFair());
73	>	ReentrantLock r2 = new ReentrantLock(true);
74	>	assertTrue(r2.isFair());
75	>	}
76
77	<	}catch(IllegalMonitorStateException sucess){}
77	>	/**
78	>	* locking an unlocked lock succeeds
79	>	*/
80	>	public void testLock() {
81	>	ReentrantLock rl = new ReentrantLock();
82	>	rl.lock();
83	>	assertTrue(rl.isLocked());
84	>	rl.unlock();
85	>	}
86
87	+	/**
88	+	* locking an unlocked fair lock succeeds
89	+	*/
90	+	public void testFairLock() {
91	+	ReentrantLock rl = new ReentrantLock(true);
92	+	rl.lock();
93	+	assertTrue(rl.isLocked());
94	+	rl.unlock();
95	+	}
96
97	+	/**
98	+	* Unlocking an unlocked lock throws IllegalMonitorStateException
99	+	*/
100	+	public void testUnlock_IllegalMonitorStateException() {
101	+	ReentrantLock rl = new ReentrantLock();
102	+	try {
103	+	rl.unlock();
104	+	shouldThrow();
105	+
106	+	} catch(IllegalMonitorStateException success){}
107		}
108	<
109	<	/*
110	<	* makes a lock, locks it, tries to aquire the lock in another thread
45	<	* interrupts that thread and waits for an interrupted Exception to
46	<	* be thrown.
108	>
109	>	/**
110	>	* trylock on an unlocked lock succeeds
111		*/
112	+	public void testTryLock() {
113	+	ReentrantLock rl = new ReentrantLock();
114	+	assertTrue(rl.tryLock());
115	+	assertTrue(rl.isLocked());
116	+	rl.unlock();
117	+	}
118	+
119
120	<	public void testInterruptedException(){
120	>	/**
121	>	* hasQueuedThreads reports whether there are waiting threads
122	>	*/
123	>	public void testhasQueuedThreads() {
124	>	final ReentrantLock lock = new ReentrantLock();
125	>	Thread t1 = new Thread(new InterruptedLockRunnable(lock));
126	>	Thread t2 = new Thread(new InterruptibleLockRunnable(lock));
127	>	try {
128	>	assertFalse(lock.hasQueuedThreads());
129	>	lock.lock();
130	>	t1.start();
131	>	Thread.sleep(SHORT_DELAY_MS);
132	>	assertTrue(lock.hasQueuedThreads());
133	>	t2.start();
134	>	Thread.sleep(SHORT_DELAY_MS);
135	>	assertTrue(lock.hasQueuedThreads());
136	>	t1.interrupt();
137	>	Thread.sleep(SHORT_DELAY_MS);
138	>	assertTrue(lock.hasQueuedThreads());
139	>	lock.unlock();
140	>	Thread.sleep(SHORT_DELAY_MS);
141	>	assertFalse(lock.hasQueuedThreads());
142	>	t1.join();
143	>	t2.join();
144	>	} catch(Exception e){
145	>	unexpectedException();
146	>	}
147	>	}
148	>
149	>	/**
150	>	* getQueueLength reports number of waiting threads
151	>	*/
152	>	public void testGetQueueLength() {
153	>	final ReentrantLock lock = new ReentrantLock();
154	>	Thread t1 = new Thread(new InterruptedLockRunnable(lock));
155	>	Thread t2 = new Thread(new InterruptibleLockRunnable(lock));
156	>	try {
157	>	assertEquals(0, lock.getQueueLength());
158	>	lock.lock();
159	>	t1.start();
160	>	Thread.sleep(SHORT_DELAY_MS);
161	>	assertEquals(1, lock.getQueueLength());
162	>	t2.start();
163	>	Thread.sleep(SHORT_DELAY_MS);
164	>	assertEquals(2, lock.getQueueLength());
165	>	t1.interrupt();
166	>	Thread.sleep(SHORT_DELAY_MS);
167	>	assertEquals(1, lock.getQueueLength());
168	>	lock.unlock();
169	>	Thread.sleep(SHORT_DELAY_MS);
170	>	assertEquals(0, lock.getQueueLength());
171	>	t1.join();
172	>	t2.join();
173	>	} catch(Exception e){
174	>	unexpectedException();
175	>	}
176	>	}
177	>
178	>	/**
179	>	* getQueuedThreads includes waiting threads
180	>	*/
181	>	public void testGetQueuedThreads() {
182	>	final PublicReentrantLock lock = new PublicReentrantLock();
183	>	Thread t1 = new Thread(new InterruptedLockRunnable(lock));
184	>	Thread t2 = new Thread(new InterruptibleLockRunnable(lock));
185	>	try {
186	>	assertTrue(lock.getQueuedThreads().isEmpty());
187	>	lock.lock();
188	>	assertTrue(lock.getQueuedThreads().isEmpty());
189	>	t1.start();
190	>	Thread.sleep(SHORT_DELAY_MS);
191	>	assertTrue(lock.getQueuedThreads().contains(t1));
192	>	t2.start();
193	>	Thread.sleep(SHORT_DELAY_MS);
194	>	assertTrue(lock.getQueuedThreads().contains(t1));
195	>	assertTrue(lock.getQueuedThreads().contains(t2));
196	>	t1.interrupt();
197	>	Thread.sleep(SHORT_DELAY_MS);
198	>	assertFalse(lock.getQueuedThreads().contains(t1));
199	>	assertTrue(lock.getQueuedThreads().contains(t2));
200	>	lock.unlock();
201	>	Thread.sleep(SHORT_DELAY_MS);
202	>	assertTrue(lock.getQueuedThreads().isEmpty());
203	>	t1.join();
204	>	t2.join();
205	>	} catch(Exception e){
206	>	unexpectedException();
207	>	}
208	>	}
209	>
210	>
211	>	/**
212	>	* timed trylock is interruptible.
213	>	*/
214	>	public void testInterruptedException2() {
215		final ReentrantLock lock = new ReentrantLock();
216		lock.lock();
217		Thread t = new Thread(new Runnable() {
218	<	public void run(){
219	<	try{
220	<	lock.lockInterruptibly();
221	<	fail("should throw");
222	<	}catch(InterruptedException sucess){}
218	>	public void run() {
219	>	try {
220	>	lock.tryLock(MEDIUM_DELAY_MS,TimeUnit.MILLISECONDS);
221	>	threadShouldThrow();
222	>	} catch(InterruptedException success){}
223		}
224		});
225	<	t.start();
226	<	t.interrupt();
227	<	lock.unlock();
228	<	}
225	>	try {
226	>	t.start();
227	>	t.interrupt();
228	>	} catch(Exception e){
229	>	unexpectedException();
230	>	}
231	>	}
232
65	–	/*
66	–	* tests for interrupted exception on a timed wait
67	–	*
68	–	*/
69	–
233
234	<	public void testInterruptedException2(){
234	>	/**
235	>	* Trylock on a locked lock fails
236	>	*/
237	>	public void testTryLockWhenLocked() {
238		final ReentrantLock lock = new ReentrantLock();
239		lock.lock();
240		Thread t = new Thread(new Runnable() {
241	<	public void run(){
242	<	try{
77	<	lock.tryLock(1000,TimeUnit.MILLISECONDS);
78	<	fail("should throw");
79	<	}catch(InterruptedException sucess){}
241	>	public void run() {
242	>	threadAssertFalse(lock.tryLock());
243		}
244		});
245	<	t.start();
246	<	t.interrupt();
247	<	}
245	>	try {
246	>	t.start();
247	>	t.join();
248	>	lock.unlock();
249	>	} catch(Exception e){
250	>	unexpectedException();
251	>	}
252	>	}
253
254	+	/**
255	+	* Timed trylock on a locked lock times out
256	+	*/
257	+	public void testTryLock_Timeout() {
258	+	final ReentrantLock lock = new ReentrantLock();
259	+	lock.lock();
260	+	Thread t = new Thread(new Runnable() {
261	+	public void run() {
262	+	try {
263	+	threadAssertFalse(lock.tryLock(1, TimeUnit.MILLISECONDS));
264	+	} catch (Exception ex) {
265	+	threadUnexpectedException();
266	+	}
267	+	}
268	+	});
269	+	try {
270	+	t.start();
271	+	t.join();
272	+	lock.unlock();
273	+	} catch(Exception e){
274	+	unexpectedException();
275	+	}
276	+	}
277
278	+	/**
279	+	* getHoldCount returns number of recursive holds
280	+	*/
281		public void testGetHoldCount() {
282		ReentrantLock lock = new ReentrantLock();
283	<	for(int i = 1; i <= ReentrantLockTest.HOLD_COUNT_TEST_LIMIT;i++) {
283	>	for(int i = 1; i <= SIZE; i++) {
284		lock.lock();
285		assertEquals(i,lock.getHoldCount());
286		}
287	<	for(int i = ReentrantLockTest.HOLD_COUNT_TEST_LIMIT; i > 0; i--) {
287	>	for(int i = SIZE; i > 0; i--) {
288		lock.unlock();
289		assertEquals(i-1,lock.getHoldCount());
290		}
291		}
292
293
294	<
295	<
294	>	/**
295	>	* isLocked is true when locked and false when not
296	>	*/
297		public void testIsLocked() {
298		final ReentrantLock lock = new ReentrantLock();
299		lock.lock();
#	Line 109 | Line 304 | public class ReentrantLockTest extends T
304		public void run() {
305		lock.lock();
306		try {
307	<	Thread.sleep(SHORT_DELAY_MS * 2);
307	>	Thread.sleep(SMALL_DELAY_MS);
308		}
309	<	catch(Exception e) {}
309	>	catch(Exception e) {
310	>	threadUnexpectedException();
311	>	}
312		lock.unlock();
313		}
314		});
315	<	try{
315	>	try {
316		t.start();
317		Thread.sleep(SHORT_DELAY_MS);
318		assertTrue(lock.isLocked());
319		t.join();
320		assertFalse(lock.isLocked());
321		} catch(Exception e){
322	<	fail("unexpected exception");
322	>	unexpectedException();
323		}
127	–
324		}
325
326	<	/*
327	<	* current thread locks interruptibly the thread
328	<	* another thread tries to aquire the lock and blocks
133	<	* on the call. interrupt the attempted aquireLock
134	<	* assert that the first lock() call actually locked the lock
135	<	* assert that the current thread is the one holding the lock
326	>
327	>	/**
328	>	* lockInterruptibly is interruptible.
329		*/
330	+	public void testLockInterruptibly1() {
331	+	final ReentrantLock lock = new ReentrantLock();
332	+	lock.lock();
333	+	Thread t = new Thread(new InterruptedLockRunnable(lock));
334	+	try {
335	+	t.start();
336	+	t.interrupt();
337	+	lock.unlock();
338	+	t.join();
339	+	} catch(Exception e){
340	+	unexpectedException();
341	+	}
342	+	}
343
344	<	public void testLockedInterruptibly() {
344	>	/**
345	>	* lockInterruptibly succeeds when unlocked, else is interruptible
346	>	*/
347	>	public void testLockInterruptibly2() {
348		final ReentrantLock lock = new ReentrantLock();
349	<	try {lock.lockInterruptibly();} catch(Exception e) {}
350	<	Thread t = new Thread(new Runnable() {
351	<	public void run() {
352	<	try {
353	<	lock.lockInterruptibly();
354	<	fail("Failed to generate an Interrupted Exception");
355	<	}
356	<	catch(InterruptedException e) {}
357	<	}
358	<	});
359	<	t.start();
360	<	t.interrupt();
361	<	assertTrue(lock.isLocked());
362	<	assertTrue(lock.isHeldByCurrentThread());
349	>	try {
350	>	lock.lockInterruptibly();
351	>	} catch(Exception e) {
352	>	unexpectedException();
353	>	}
354	>	Thread t = new Thread(new InterruptedLockRunnable(lock));
355	>	try {
356	>	t.start();
357	>	t.interrupt();
358	>	assertTrue(lock.isLocked());
359	>	assertTrue(lock.isHeldByCurrentThread());
360	>	t.join();
361	>	} catch(Exception e){
362	>	unexpectedException();
363	>	}
364		}
365
366	+	/**
367	+	* Calling await without holding lock throws IllegalMonitorStateException
368	+	*/
369		public void testAwait_IllegalMonitor() {
370		final ReentrantLock lock = new ReentrantLock();
371		final Condition c = lock.newCondition();
372		try {
373		c.await();
374	<	fail("should throw");
374	>	shouldThrow();
375		}
376		catch (IllegalMonitorStateException success) {
377		}
378		catch (Exception ex) {
379	<	fail("should throw IMSE");
379	>	unexpectedException();
380		}
381		}
382
383	+	/**
384	+	* Calling signal without holding lock throws IllegalMonitorStateException
385	+	*/
386		public void testSignal_IllegalMonitor() {
387		final ReentrantLock lock = new ReentrantLock();
388		final Condition c = lock.newCondition();
389		try {
390		c.signal();
391	<	fail("should throw");
391	>	shouldThrow();
392		}
393		catch (IllegalMonitorStateException success) {
394		}
395		catch (Exception ex) {
396	<	fail("should throw IMSE");
396	>	unexpectedException();
397		}
398		}
399
400	+	/**
401	+	* awaitNanos without a signal times out
402	+	*/
403		public void testAwaitNanos_Timeout() {
404		final ReentrantLock lock = new ReentrantLock();
405		final Condition c = lock.newCondition();
#	Line 191 | Line 410 | public class ReentrantLockTest extends T
410		lock.unlock();
411		}
412		catch (Exception ex) {
413	<	fail("unexpected exception");
413	>	unexpectedException();
414		}
415		}
416
417	+	/**
418	+	*  timed await without a signal times out
419	+	*/
420		public void testAwait_Timeout() {
421		final ReentrantLock lock = new ReentrantLock();
422		final Condition c = lock.newCondition();
423		try {
424		lock.lock();
425	<	assertFalse(c.await(10, TimeUnit.MILLISECONDS));
425	>	assertFalse(c.await(SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
426		lock.unlock();
427		}
428		catch (Exception ex) {
429	<	fail("unexpected exception");
429	>	unexpectedException();
430		}
431		}
432
433	+	/**
434	+	* awaitUntil without a signal times out
435	+	*/
436		public void testAwaitUntil_Timeout() {
437		final ReentrantLock lock = new ReentrantLock();
438		final Condition c = lock.newCondition();
#	Line 218 | Line 443 | public class ReentrantLockTest extends T
443		lock.unlock();
444		}
445		catch (Exception ex) {
446	<	fail("unexpected exception");
446	>	unexpectedException();
447		}
448		}
449
450	+	/**
451	+	* await returns when signalled
452	+	*/
453		public void testAwait() {
454		final ReentrantLock lock = new ReentrantLock();
455		final Condition c = lock.newCondition();
#	Line 233 | Line 461 | public class ReentrantLockTest extends T
461		lock.unlock();
462		}
463		catch(InterruptedException e) {
464	<	fail("unexpected exception");
464	>	threadUnexpectedException();
465	>	}
466	>	}
467	>	});
468	>
469	>	try {
470	>	t.start();
471	>	Thread.sleep(SHORT_DELAY_MS);
472	>	lock.lock();
473	>	c.signal();
474	>	lock.unlock();
475	>	t.join(SHORT_DELAY_MS);
476	>	assertFalse(t.isAlive());
477	>	}
478	>	catch (Exception ex) {
479	>	unexpectedException();
480	>	}
481	>	}
482	>
483	>	/**
484	>	* hasWaiters throws IAE if not owned
485	>	*/
486	>	public void testHasWaitersIAE() {
487	>	final ReentrantLock lock = new ReentrantLock();
488	>	final Condition c = (lock.newCondition());
489	>	final ReentrantLock lock2 = new ReentrantLock();
490	>	try {
491	>	lock2.hasWaiters(c);
492	>	shouldThrow();
493	>	} catch (IllegalArgumentException success) {
494	>	} catch (Exception ex) {
495	>	unexpectedException();
496	>	}
497	>	}
498	>
499	>	/**
500	>	* hasWaiters throws IMSE if not locked
501	>	*/
502	>	public void testHasWaitersIMSE() {
503	>	final ReentrantLock lock = new ReentrantLock();
504	>	final Condition c = (lock.newCondition());
505	>	try {
506	>	lock.hasWaiters(c);
507	>	shouldThrow();
508	>	} catch (IllegalMonitorStateException success) {
509	>	} catch (Exception ex) {
510	>	unexpectedException();
511	>	}
512	>	}
513	>
514	>
515	>	/**
516	>	* getWaitQueueLength throws IAE if not owned
517	>	*/
518	>	public void testGetWaitQueueLengthIAE() {
519	>	final ReentrantLock lock = new ReentrantLock();
520	>	final Condition c = (lock.newCondition());
521	>	final ReentrantLock lock2 = new ReentrantLock();
522	>	try {
523	>	lock2.getWaitQueueLength(c);
524	>	shouldThrow();
525	>	} catch (IllegalArgumentException success) {
526	>	} catch (Exception ex) {
527	>	unexpectedException();
528	>	}
529	>	}
530	>
531	>	/**
532	>	* getWaitQueueLength throws IMSE if not locked
533	>	*/
534	>	public void testGetWaitQueueLengthIMSE() {
535	>	final ReentrantLock lock = new ReentrantLock();
536	>	final Condition c = (lock.newCondition());
537	>	try {
538	>	lock.getWaitQueueLength(c);
539	>	shouldThrow();
540	>	} catch (IllegalMonitorStateException success) {
541	>	} catch (Exception ex) {
542	>	unexpectedException();
543	>	}
544	>	}
545	>
546	>
547	>	/**
548	>	* getWaitingThreads throws IAE if not owned
549	>	*/
550	>	public void testGetWaitingThreadsIAE() {
551	>	final PublicReentrantLock lock = new PublicReentrantLock();
552	>	final Condition c = (lock.newCondition());
553	>	final PublicReentrantLock lock2 = new PublicReentrantLock();
554	>	try {
555	>	lock2.getWaitingThreads(c);
556	>	shouldThrow();
557	>	} catch (IllegalArgumentException success) {
558	>	} catch (Exception ex) {
559	>	unexpectedException();
560	>	}
561	>	}
562	>
563	>	/**
564	>	* getWaitingThreads throws IMSE if not locked
565	>	*/
566	>	public void testGetWaitingThreadsIMSE() {
567	>	final PublicReentrantLock lock = new PublicReentrantLock();
568	>	final Condition c = (lock.newCondition());
569	>	try {
570	>	lock.getWaitingThreads(c);
571	>	shouldThrow();
572	>	} catch (IllegalMonitorStateException success) {
573	>	} catch (Exception ex) {
574	>	unexpectedException();
575	>	}
576	>	}
577	>
578	>
579	>
580	>	/**
581	>	* hasWaiters returns true when a thread is waiting, else false
582	>	*/
583	>	public void testHasWaiters() {
584	>	final ReentrantLock lock = new ReentrantLock();
585	>	final Condition c = lock.newCondition();
586	>	Thread t = new Thread(new Runnable() {
587	>	public void run() {
588	>	try {
589	>	lock.lock();
590	>	threadAssertFalse(lock.hasWaiters(c));
591	>	threadAssertEquals(0, lock.getWaitQueueLength(c));
592	>	c.await();
593	>	lock.unlock();
594	>	}
595	>	catch(InterruptedException e) {
596	>	threadUnexpectedException();
597		}
598		}
599		});
#	Line 242 | Line 602 | public class ReentrantLockTest extends T
602		t.start();
603		Thread.sleep(SHORT_DELAY_MS);
604		lock.lock();
605	+	assertTrue(lock.hasWaiters(c));
606	+	assertEquals(1, lock.getWaitQueueLength(c));
607		c.signal();
608		lock.unlock();
609	+	Thread.sleep(SHORT_DELAY_MS);
610	+	lock.lock();
611	+	assertFalse(lock.hasWaiters(c));
612	+	assertEquals(0, lock.getWaitQueueLength(c));
613	+	lock.unlock();
614		t.join(SHORT_DELAY_MS);
615		assertFalse(t.isAlive());
616		}
617		catch (Exception ex) {
618	<	fail("unexpected exception");
618	>	unexpectedException();
619		}
620		}
621
622	+	/**
623	+	* getWaitQueueLength returns number of waiting threads
624	+	*/
625	+	public void testGetWaitQueueLength() {
626	+	final ReentrantLock lock = new ReentrantLock();
627	+	final Condition c = lock.newCondition();
628	+	Thread t1 = new Thread(new Runnable() {
629	+	public void run() {
630	+	try {
631	+	lock.lock();
632	+	threadAssertFalse(lock.hasWaiters(c));
633	+	threadAssertEquals(0, lock.getWaitQueueLength(c));
634	+	c.await();
635	+	lock.unlock();
636	+	}
637	+	catch(InterruptedException e) {
638	+	threadUnexpectedException();
639	+	}
640	+	}
641	+	});
642	+
643	+	Thread t2 = new Thread(new Runnable() {
644	+	public void run() {
645	+	try {
646	+	lock.lock();
647	+	threadAssertTrue(lock.hasWaiters(c));
648	+	threadAssertEquals(1, lock.getWaitQueueLength(c));
649	+	c.await();
650	+	lock.unlock();
651	+	}
652	+	catch(InterruptedException e) {
653	+	threadUnexpectedException();
654	+	}
655	+	}
656	+	});
657	+
658	+	try {
659	+	t1.start();
660	+	Thread.sleep(SHORT_DELAY_MS);
661	+	t2.start();
662	+	Thread.sleep(SHORT_DELAY_MS);
663	+	lock.lock();
664	+	assertTrue(lock.hasWaiters(c));
665	+	assertEquals(2, lock.getWaitQueueLength(c));
666	+	c.signalAll();
667	+	lock.unlock();
668	+	Thread.sleep(SHORT_DELAY_MS);
669	+	lock.lock();
670	+	assertFalse(lock.hasWaiters(c));
671	+	assertEquals(0, lock.getWaitQueueLength(c));
672	+	lock.unlock();
673	+	t1.join(SHORT_DELAY_MS);
674	+	t2.join(SHORT_DELAY_MS);
675	+	assertFalse(t1.isAlive());
676	+	assertFalse(t2.isAlive());
677	+	}
678	+	catch (Exception ex) {
679	+	unexpectedException();
680	+	}
681	+	}
682	+
683	+	/**
684	+	* getWaitingThreads returns only and all waiting threads
685	+	*/
686	+	public void testGetWaitingThreads() {
687	+	final PublicReentrantLock lock = new PublicReentrantLock();
688	+	final Condition c = lock.newCondition();
689	+	Thread t1 = new Thread(new Runnable() {
690	+	public void run() {
691	+	try {
692	+	lock.lock();
693	+	threadAssertTrue(lock.getWaitingThreads(c).isEmpty());
694	+	c.await();
695	+	lock.unlock();
696	+	}
697	+	catch(InterruptedException e) {
698	+	threadUnexpectedException();
699	+	}
700	+	}
701	+	});
702	+
703	+	Thread t2 = new Thread(new Runnable() {
704	+	public void run() {
705	+	try {
706	+	lock.lock();
707	+	threadAssertFalse(lock.getWaitingThreads(c).isEmpty());
708	+	c.await();
709	+	lock.unlock();
710	+	}
711	+	catch(InterruptedException e) {
712	+	threadUnexpectedException();
713	+	}
714	+	}
715	+	});
716	+
717	+	try {
718	+	lock.lock();
719	+	assertTrue(lock.getWaitingThreads(c).isEmpty());
720	+	lock.unlock();
721	+	t1.start();
722	+	Thread.sleep(SHORT_DELAY_MS);
723	+	t2.start();
724	+	Thread.sleep(SHORT_DELAY_MS);
725	+	lock.lock();
726	+	assertTrue(lock.hasWaiters(c));
727	+	assertTrue(lock.getWaitingThreads(c).contains(t1));
728	+	assertTrue(lock.getWaitingThreads(c).contains(t2));
729	+	c.signalAll();
730	+	lock.unlock();
731	+	Thread.sleep(SHORT_DELAY_MS);
732	+	lock.lock();
733	+	assertFalse(lock.hasWaiters(c));
734	+	assertTrue(lock.getWaitingThreads(c).isEmpty());
735	+	lock.unlock();
736	+	t1.join(SHORT_DELAY_MS);
737	+	t2.join(SHORT_DELAY_MS);
738	+	assertFalse(t1.isAlive());
739	+	assertFalse(t2.isAlive());
740	+	}
741	+	catch (Exception ex) {
742	+	unexpectedException();
743	+	}
744	+	}
745	+
746	+
747	+
748	+	/**
749	+	* awaitUninterruptibly doesn't abort on interrupt
750	+	*/
751		public void testAwaitUninterruptibly() {
752		final ReentrantLock lock = new ReentrantLock();
753		final Condition c = lock.newCondition();
#	Line 270 | Line 766 | public class ReentrantLockTest extends T
766		lock.lock();
767		c.signal();
768		lock.unlock();
769	+	assert(t.isInterrupted());
770		t.join(SHORT_DELAY_MS);
771		assertFalse(t.isAlive());
772		}
773		catch (Exception ex) {
774	<	fail("unexpected exception");
774	>	unexpectedException();
775		}
776		}
777
778	+	/**
779	+	* await is interruptible
780	+	*/
781		public void testAwait_Interrupt() {
782		final ReentrantLock lock = new ReentrantLock();
783		final Condition c = lock.newCondition();
#	Line 287 | Line 787 | public class ReentrantLockTest extends T
787		lock.lock();
788		c.await();
789		lock.unlock();
790	<	fail("should throw");
790	>	threadShouldThrow();
791		}
792		catch(InterruptedException success) {
793		}
#	Line 302 | Line 802 | public class ReentrantLockTest extends T
802		assertFalse(t.isAlive());
803		}
804		catch (Exception ex) {
805	<	fail("unexpected exception");
805	>	unexpectedException();
806		}
807		}
808
809	+	/**
810	+	* awaitNanos is interruptible
811	+	*/
812		public void testAwaitNanos_Interrupt() {
813		final ReentrantLock lock = new ReentrantLock();
814		final Condition c = lock.newCondition();
#	Line 315 | Line 818 | public class ReentrantLockTest extends T
818		lock.lock();
819		c.awaitNanos(SHORT_DELAY_MS * 2 * 1000000);
820		lock.unlock();
821	<	fail("should throw");
821	>	threadShouldThrow();
822		}
823		catch(InterruptedException success) {
824		}
#	Line 330 | Line 833 | public class ReentrantLockTest extends T
833		assertFalse(t.isAlive());
834		}
835		catch (Exception ex) {
836	<	fail("unexpected exception");
836	>	unexpectedException();
837		}
838		}
839
840	+	/**
841	+	* awaitUntil is interruptible
842	+	*/
843		public void testAwaitUntil_Interrupt() {
844		final ReentrantLock lock = new ReentrantLock();
845		final Condition c = lock.newCondition();
#	Line 344 | Line 850 | public class ReentrantLockTest extends T
850		java.util.Date d = new java.util.Date();
851		c.awaitUntil(new java.util.Date(d.getTime() + 10000));
852		lock.unlock();
853	<	fail("should throw");
853	>	threadShouldThrow();
854		}
855		catch(InterruptedException success) {
856		}
#	Line 359 | Line 865 | public class ReentrantLockTest extends T
865		assertFalse(t.isAlive());
866		}
867		catch (Exception ex) {
868	<	fail("unexpected exception");
868	>	unexpectedException();
869		}
870		}
871
872	+	/**
873	+	* signalAll wakes up all threads
874	+	*/
875		public void testSignalAll() {
876		final ReentrantLock lock = new ReentrantLock();
877		final Condition c = lock.newCondition();
#	Line 374 | Line 883 | public class ReentrantLockTest extends T
883		lock.unlock();
884		}
885		catch(InterruptedException e) {
886	<	fail("unexpected exception");
886	>	threadUnexpectedException();
887		}
888		}
889		});
#	Line 387 | Line 896 | public class ReentrantLockTest extends T
896		lock.unlock();
897		}
898		catch(InterruptedException e) {
899	<	fail("unexpected exception");
899	>	threadUnexpectedException();
900		}
901		}
902		});
#	Line 405 | Line 914 | public class ReentrantLockTest extends T
914		assertFalse(t2.isAlive());
915		}
916		catch (Exception ex) {
917	<	fail("unexpected exception");
917	>	unexpectedException();
918	>	}
919	>	}
920	>
921	>	/**
922	>	* A serialized lock deserializes as unlocked
923	>	*/
924	>	public void testSerialization() {
925	>	ReentrantLock l = new ReentrantLock();
926	>	l.lock();
927	>	l.unlock();
928	>
929	>	try {
930	>	ByteArrayOutputStream bout = new ByteArrayOutputStream(10000);
931	>	ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout));
932	>	out.writeObject(l);
933	>	out.close();
934	>
935	>	ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray());
936	>	ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin));
937	>	ReentrantLock r = (ReentrantLock) in.readObject();
938	>	r.lock();
939	>	r.unlock();
940	>	} catch(Exception e){
941	>	e.printStackTrace();
942	>	unexpectedException();
943		}
944		}
945

Diff Legend

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