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Comparing jsr166/src/test/tck/SynchronousQueueTest.java (file contents):
Revision 1.7 by dl, Sat Dec 27 19:26:44 2003 UTC vs.
Revision 1.19 by jsr166, Tue Dec 1 06:03:49 2009 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.*;
11		import java.util.concurrent.*;
12	+	import static java.util.concurrent.TimeUnit.MILLISECONDS;
13		import java.io.*;
14
15		public class SynchronousQueueTest extends JSR166TestCase {
16
17		public static void main(String[] args) {
18	<	junit.textui.TestRunner.run (suite());
18	>	junit.textui.TestRunner.run (suite());
19		}
20
21		public static Test suite() {
22	<	return new TestSuite(SynchronousQueueTest.class);
22	>	return new TestSuite(SynchronousQueueTest.class);
23		}
24
25		/**
#	Line 27 | Line 28 | public class SynchronousQueueTest extend
28		public void testEmptyFull() {
29		SynchronousQueue q = new SynchronousQueue();
30		assertTrue(q.isEmpty());
31	<	assertEquals(0, q.size());
31	>	assertEquals(0, q.size());
32	>	assertEquals(0, q.remainingCapacity());
33	>	assertFalse(q.offer(zero));
34	>	}
35	>
36	>	/**
37	>	* A fair SynchronousQueue is both empty and full
38	>	*/
39	>	public void testFairEmptyFull() {
40	>	SynchronousQueue q = new SynchronousQueue(true);
41	>	assertTrue(q.isEmpty());
42	>	assertEquals(0, q.size());
43		assertEquals(0, q.remainingCapacity());
44		assertFalse(q.offer(zero));
45		}
#	Line 36 | Line 48 | public class SynchronousQueueTest extend
48		* offer(null) throws NPE
49		*/
50		public void testOfferNull() {
51	<	try {
51	>	try {
52		SynchronousQueue q = new SynchronousQueue();
53		q.offer(null);
54		shouldThrow();
55	<	} catch (NullPointerException success) { }
55	>	} catch (NullPointerException success) {}
56		}
57
58		/**
59		* add(null) throws NPE
60		*/
61		public void testAddNull() {
62	<	try {
62	>	try {
63		SynchronousQueue q = new SynchronousQueue();
64		q.add(null);
65		shouldThrow();
66	<	} catch (NullPointerException success) { }
66	>	} catch (NullPointerException success) {}
67		}
68
69		/**
#	Line 66 | Line 78 | public class SynchronousQueueTest extend
78		* add throws ISE if no active taker
79		*/
80		public void testAdd() {
81	<	try {
81	>	try {
82		SynchronousQueue q = new SynchronousQueue();
83		assertEquals(0, q.remainingCapacity());
84		q.add(one);
85		shouldThrow();
86	<	} catch (IllegalStateException success){
75	<	}
86	>	} catch (IllegalStateException success) {}
87		}
88
89		/**
#	Line 83 | Line 94 | public class SynchronousQueueTest extend
94		SynchronousQueue q = new SynchronousQueue();
95		q.addAll(null);
96		shouldThrow();
97	<	}
87	<	catch (NullPointerException success) {}
97	>	} catch (NullPointerException success) {}
98		}
99
100		/**
#	Line 95 | Line 105 | public class SynchronousQueueTest extend
105		SynchronousQueue q = new SynchronousQueue();
106		q.addAll(q);
107		shouldThrow();
108	<	}
99	<	catch (IllegalArgumentException success) {}
108	>	} catch (IllegalArgumentException success) {}
109		}
110
111		/**
#	Line 108 | Line 117 | public class SynchronousQueueTest extend
117		Integer[] ints = new Integer[1];
118		q.addAll(Arrays.asList(ints));
119		shouldThrow();
120	<	}
112	<	catch (NullPointerException success) {}
120	>	} catch (NullPointerException success) {}
121		}
122		/**
123		* addAll throws ISE if no active taker
#	Line 122 | Line 130 | public class SynchronousQueueTest extend
130		ints[i] = new Integer(i);
131		q.addAll(Arrays.asList(ints));
132		shouldThrow();
133	<	}
126	<	catch (IllegalStateException success) {}
133	>	} catch (IllegalStateException success) {}
134		}
135
136		/**
137		* put(null) throws NPE
138		*/
139	<	public void testPutNull() {
140	<	try {
139	>	public void testPutNull() throws InterruptedException {
140	>	try {
141		SynchronousQueue q = new SynchronousQueue();
142		q.put(null);
143		shouldThrow();
144	<	}
138	<	catch (NullPointerException success){
139	<	}
140	<	catch (InterruptedException ie) {
141	<	unexpectedException();
142	<	}
144	>	} catch (NullPointerException success) {}
145		}
146
147		/**
148		* put blocks interruptibly if no active taker
149		*/
150	<	public void testBlockingPut() {
151	<	Thread t = new Thread(new Runnable() {
152	<	public void run() {
153	<	try {
154	<	SynchronousQueue q = new SynchronousQueue();
155	<	q.put(zero);
156	<	threadShouldThrow();
157	<	} catch (InterruptedException ie){
158	<	}
159	<	}});
160	<	t.start();
159	<	try {
160	<	Thread.sleep(SHORT_DELAY_MS);
161	<	t.interrupt();
162	<	t.join();
163	<	}
164	<	catch (InterruptedException ie) {
165	<	unexpectedException();
166	<	}
150	>	public void testBlockingPut() throws InterruptedException {
151	>	Thread t = new Thread(new CheckedInterruptedRunnable() {
152	>	public void realRun() throws InterruptedException {
153	>	SynchronousQueue q = new SynchronousQueue();
154	>	q.put(zero);
155	>	}});
156	>
157	>	t.start();
158	>	Thread.sleep(SHORT_DELAY_MS);
159	>	t.interrupt();
160	>	t.join();
161		}
162
163		/**
164	<	* put blocks waiting for take
164	>	* put blocks waiting for take
165		*/
166	<	public void testPutWithTake() {
166	>	public void testPutWithTake() throws InterruptedException {
167		final SynchronousQueue q = new SynchronousQueue();
168	<	Thread t = new Thread(new Runnable() {
169	<	public void run() {
170	<	int added = 0;
171	<	try {
172	<	q.put(new Object());
173	<	++added;
180	<	q.put(new Object());
181	<	++added;
182	<	q.put(new Object());
183	<	++added;
184	<	q.put(new Object());
168	>	Thread t = new Thread(new CheckedRunnable() {
169	>	public void realRun() throws InterruptedException {
170	>	int added = 0;
171	>	try {
172	>	while (true) {
173	>	q.put(added);
174		++added;
186	–	threadShouldThrow();
187	–	} catch (InterruptedException e){
188	–	assertTrue(added >= 1);
175		}
176	+	} catch (InterruptedException success) {
177	+	assertTrue(added == 1);
178		}
179	<	});
180	<	try {
181	<	t.start();
182	<	Thread.sleep(SHORT_DELAY_MS);
183	<	q.take();
184	<	Thread.sleep(SHORT_DELAY_MS);
185	<	t.interrupt();
186	<	t.join();
199	<	} catch (Exception e){
200	<	unexpectedException();
201	<	}
179	>	}});
180	>
181	>	t.start();
182	>	Thread.sleep(SHORT_DELAY_MS);
183	>	assertEquals(0, q.take());
184	>	Thread.sleep(SHORT_DELAY_MS);
185	>	t.interrupt();
186	>	t.join();
187		}
188
189		/**
190		* timed offer times out if elements not taken
191		*/
192	<	public void testTimedOffer() {
192	>	public void testTimedOffer() throws InterruptedException {
193		final SynchronousQueue q = new SynchronousQueue();
194	<	Thread t = new Thread(new Runnable() {
195	<	public void run() {
196	<	try {
197	<
198	<	threadAssertFalse(q.offer(new Object(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
199	<	q.offer(new Object(), LONG_DELAY_MS, TimeUnit.MILLISECONDS);
200	<	threadShouldThrow();
201	<	} catch (InterruptedException success){}
202	<	}
203	<	});
219	<
220	<	try {
221	<	t.start();
222	<	Thread.sleep(SMALL_DELAY_MS);
223	<	t.interrupt();
224	<	t.join();
225	<	} catch (Exception e){
226	<	unexpectedException();
227	<	}
194	>	Thread t = new Thread(new CheckedInterruptedRunnable() {
195	>	public void realRun() throws InterruptedException {
196	>	assertFalse(q.offer(new Object(), SHORT_DELAY_MS, MILLISECONDS));
197	>	q.offer(new Object(), LONG_DELAY_MS, MILLISECONDS);
198	>	}});
199	>
200	>	t.start();
201	>	Thread.sleep(SMALL_DELAY_MS);
202	>	t.interrupt();
203	>	t.join();
204		}
205
206
207		/**
208		* take blocks interruptibly when empty
209		*/
210	<	public void testTakeFromEmpty() {
210	>	public void testTakeFromEmpty() throws InterruptedException {
211		final SynchronousQueue q = new SynchronousQueue();
212	<	Thread t = new Thread(new Runnable() {
213	<	public void run() {
214	<	try {
215	<	q.take();
216	<	threadShouldThrow();
217	<	} catch (InterruptedException success){ }
212	>	Thread t = new Thread(new CheckedInterruptedRunnable() {
213	>	public void realRun() throws InterruptedException {
214	>	q.take();
215	>	}});
216	>
217	>	t.start();
218	>	Thread.sleep(SHORT_DELAY_MS);
219	>	t.interrupt();
220	>	t.join();
221	>	}
222	>
223	>
224	>	/**
225	>	* put blocks interruptibly if no active taker
226	>	*/
227	>	public void testFairBlockingPut() throws InterruptedException {
228	>	Thread t = new Thread(new CheckedInterruptedRunnable() {
229	>	public void realRun() throws InterruptedException {
230	>	SynchronousQueue q = new SynchronousQueue(true);
231	>	q.put(zero);
232	>	}});
233	>
234	>	t.start();
235	>	Thread.sleep(SHORT_DELAY_MS);
236	>	t.interrupt();
237	>	t.join();
238	>	}
239	>
240	>	/**
241	>	* put blocks waiting for take
242	>	*/
243	>	public void testFairPutWithTake() throws InterruptedException {
244	>	final SynchronousQueue q = new SynchronousQueue(true);
245	>	Thread t = new Thread(new CheckedRunnable() {
246	>	public void realRun() throws InterruptedException {
247	>	int added = 0;
248	>	try {
249	>	while (true) {
250	>	q.put(added);
251	>	++added;
252	>	}
253	>	} catch (InterruptedException success) {
254	>	assertTrue(added == 1);
255		}
256	<	});
257	<	try {
258	<	t.start();
259	<	Thread.sleep(SHORT_DELAY_MS);
260	<	t.interrupt();
261	<	t.join();
262	<	} catch (Exception e){
263	<	unexpectedException();
264	<	}
256	>	}});
257	>
258	>	t.start();
259	>	Thread.sleep(SHORT_DELAY_MS);
260	>	assertEquals(0, q.take());
261	>	Thread.sleep(SHORT_DELAY_MS);
262	>	t.interrupt();
263	>	t.join();
264	>	}
265	>
266	>	/**
267	>	* timed offer times out if elements not taken
268	>	*/
269	>	public void testFairTimedOffer() throws InterruptedException {
270	>	final SynchronousQueue q = new SynchronousQueue(true);
271	>	Thread t = new Thread(new CheckedInterruptedRunnable() {
272	>	public void realRun() throws InterruptedException {
273	>	assertFalse(q.offer(new Object(), SHORT_DELAY_MS, MILLISECONDS));
274	>	q.offer(new Object(), LONG_DELAY_MS, MILLISECONDS);
275	>	}});
276	>
277	>	t.start();
278	>	Thread.sleep(SMALL_DELAY_MS);
279	>	t.interrupt();
280	>	t.join();
281	>	}
282	>
283	>
284	>	/**
285	>	* take blocks interruptibly when empty
286	>	*/
287	>	public void testFairTakeFromEmpty() throws InterruptedException {
288	>	final SynchronousQueue q = new SynchronousQueue(true);
289	>	Thread t = new Thread(new CheckedInterruptedRunnable() {
290	>	public void realRun() throws InterruptedException {
291	>	q.take();
292	>	}});
293	>
294	>	t.start();
295	>	Thread.sleep(SHORT_DELAY_MS);
296	>	t.interrupt();
297	>	t.join();
298		}
299
300		/**
#	Line 256 | Line 302 | public class SynchronousQueueTest extend
302		*/
303		public void testPoll() {
304		SynchronousQueue q = new SynchronousQueue();
305	<	assertNull(q.poll());
305	>	assertNull(q.poll());
306		}
307
308		/**
309		* timed pool with zero timeout times out if no active taker
310		*/
311	<	public void testTimedPoll0() {
312	<	try {
313	<	SynchronousQueue q = new SynchronousQueue();
268	<	assertNull(q.poll(0, TimeUnit.MILLISECONDS));
269	<	} catch (InterruptedException e){
270	<	unexpectedException();
271	<	}
311	>	public void testTimedPoll0() throws InterruptedException {
312	>	SynchronousQueue q = new SynchronousQueue();
313	>	assertNull(q.poll(0, MILLISECONDS));
314		}
315
316		/**
317		* timed pool with nonzero timeout times out if no active taker
318		*/
319	<	public void testTimedPoll() {
320	<	try {
321	<	SynchronousQueue q = new SynchronousQueue();
280	<	assertNull(q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
281	<	} catch (InterruptedException e){
282	<	unexpectedException();
283	<	}
319	>	public void testTimedPoll() throws InterruptedException {
320	>	SynchronousQueue q = new SynchronousQueue();
321	>	assertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS));
322		}
323
324		/**
325		* Interrupted timed poll throws InterruptedException instead of
326		* returning timeout status
327		*/
328	<	public void testInterruptedTimedPoll() {
329	<	Thread t = new Thread(new Runnable() {
330	<	public void run() {
331	<	try {
332	<	SynchronousQueue q = new SynchronousQueue();
333	<	assertNull(q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
334	<	} catch (InterruptedException success){
335	<	}
336	<	}});
337	<	t.start();
338	<	try {
301	<	Thread.sleep(SHORT_DELAY_MS);
302	<	t.interrupt();
303	<	t.join();
304	<	}
305	<	catch (InterruptedException ie) {
306	<	unexpectedException();
307	<	}
328	>	public void testInterruptedTimedPoll() throws InterruptedException {
329	>	final SynchronousQueue q = new SynchronousQueue();
330	>	Thread t = new Thread(new CheckedInterruptedRunnable() {
331	>	public void realRun() throws InterruptedException {
332	>	q.poll(SMALL_DELAY_MS, MILLISECONDS);
333	>	}});
334	>
335	>	t.start();
336	>	Thread.sleep(SHORT_DELAY_MS);
337	>	t.interrupt();
338	>	t.join();
339		}
340
341		/**
342		*  timed poll before a delayed offer fails; after offer succeeds;
343		*  on interruption throws
344		*/
345	<	public void testTimedPollWithOffer() {
345	>	public void testTimedPollWithOffer() throws InterruptedException {
346		final SynchronousQueue q = new SynchronousQueue();
347	<	Thread t = new Thread(new Runnable() {
348	<	public void run() {
349	<	try {
350	<	threadAssertNull(q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
351	<	q.poll(LONG_DELAY_MS, TimeUnit.MILLISECONDS);
352	<	q.poll(LONG_DELAY_MS, TimeUnit.MILLISECONDS);
353	<	threadShouldThrow();
354	<	} catch (InterruptedException success) { }
355	<	}
356	<	});
357	<	try {
358	<	t.start();
359	<	Thread.sleep(SMALL_DELAY_MS);
360	<	assertTrue(q.offer(zero, SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
361	<	t.interrupt();
362	<	t.join();
363	<	} catch (Exception e){
364	<	unexpectedException();
365	<	}
366	<	}
347	>	Thread t = new Thread(new CheckedRunnable() {
348	>	public void realRun() throws InterruptedException {
349	>	assertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS));
350	>	assertSame(zero, q.poll(LONG_DELAY_MS, MILLISECONDS));
351	>	try {
352	>	q.poll(LONG_DELAY_MS, MILLISECONDS);
353	>	shouldThrow();
354	>	} catch (InterruptedException success) {}
355	>	}});
356	>
357	>	t.start();
358	>	Thread.sleep(SMALL_DELAY_MS);
359	>	assertTrue(q.offer(zero, SHORT_DELAY_MS, MILLISECONDS));
360	>	t.interrupt();
361	>	t.join();
362	>	}
363	>
364	>	/**
365	>	* Interrupted timed poll throws InterruptedException instead of
366	>	* returning timeout status
367	>	*/
368	>	public void testFairInterruptedTimedPoll() throws InterruptedException {
369	>	Thread t = new Thread(new CheckedInterruptedRunnable() {
370	>	public void realRun() throws InterruptedException {
371	>	SynchronousQueue q = new SynchronousQueue(true);
372	>	q.poll(SMALL_DELAY_MS, MILLISECONDS);
373	>	}});
374	>
375	>	t.start();
376	>	Thread.sleep(SHORT_DELAY_MS);
377	>	t.interrupt();
378	>	t.join();
379	>	}
380	>
381	>	/**
382	>	*  timed poll before a delayed offer fails; after offer succeeds;
383	>	*  on interruption throws
384	>	*/
385	>	public void testFairTimedPollWithOffer() throws InterruptedException {
386	>	final SynchronousQueue q = new SynchronousQueue(true);
387	>	Thread t = new Thread(new CheckedRunnable() {
388	>	public void realRun() throws InterruptedException {
389	>	assertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS));
390	>	assertSame(zero, q.poll(LONG_DELAY_MS, MILLISECONDS));
391	>	try {
392	>	q.poll(LONG_DELAY_MS, MILLISECONDS);
393	>	threadShouldThrow();
394	>	} catch (InterruptedException success) {}
395	>	}});
396	>
397	>	t.start();
398	>	Thread.sleep(SMALL_DELAY_MS);
399	>	assertTrue(q.offer(zero, SHORT_DELAY_MS, MILLISECONDS));
400	>	t.interrupt();
401	>	t.join();
402	>	}
403
404
405		/**
#	Line 340 | Line 407 | public class SynchronousQueueTest extend
407		*/
408		public void testPeek() {
409		SynchronousQueue q = new SynchronousQueue();
410	<	assertNull(q.peek());
410	>	assertNull(q.peek());
411		}
412
413		/**
#	Line 351 | Line 418 | public class SynchronousQueueTest extend
418		try {
419		q.element();
420		shouldThrow();
421	<	}
355	<	catch (NoSuchElementException success) {}
421	>	} catch (NoSuchElementException success) {}
422		}
423
424		/**
#	Line 363 | Line 429 | public class SynchronousQueueTest extend
429		try {
430		q.remove();
431		shouldThrow();
432	<	} catch (NoSuchElementException success){
367	<	}
432	>	} catch (NoSuchElementException success) {}
433		}
434
435		/**
#	Line 375 | Line 440 | public class SynchronousQueueTest extend
440		assertFalse(q.remove(zero));
441		assertTrue(q.isEmpty());
442		}
443	<
443	>
444		/**
445		* contains returns false
446		*/
#	Line 432 | Line 497 | public class SynchronousQueueTest extend
497		*/
498		public void testToArray() {
499		SynchronousQueue q = new SynchronousQueue();
500	<	Object[] o = q.toArray();
500	>	Object[] o = q.toArray();
501		assertEquals(o.length, 0);
502		}
503
#	Line 441 | Line 506 | public class SynchronousQueueTest extend
506		*/
507		public void testToArray2() {
508		SynchronousQueue q = new SynchronousQueue();
509	<	Integer[] ints = new Integer[1];
509	>	Integer[] ints = new Integer[1];
510		assertNull(ints[0]);
511		}
512	<
512	>
513		/**
514		* toArray(null) throws NPE
515		*/
516		public void testToArray_BadArg() {
517	<	try {
518	<	SynchronousQueue q = new SynchronousQueue();
519	<	Object o[] = q.toArray(null);
520	<	shouldThrow();
521	<	} catch(NullPointerException success){}
517	>	SynchronousQueue q = new SynchronousQueue();
518	>	try {
519	>	Object o[] = q.toArray(null);
520	>	shouldThrow();
521	>	} catch (NullPointerException success) {}
522		}
523
524
#	Line 462 | Line 527 | public class SynchronousQueueTest extend
527		*/
528		public void testIterator() {
529		SynchronousQueue q = new SynchronousQueue();
530	<	Iterator it = q.iterator();
530	>	Iterator it = q.iterator();
531		assertFalse(it.hasNext());
532		try {
533		Object x = it.next();
534		shouldThrow();
535	<	}
471	<	catch (NoSuchElementException success) {}
535	>	} catch (NoSuchElementException success) {}
536		}
537
538		/**
#	Line 476 | Line 540 | public class SynchronousQueueTest extend
540		*/
541		public void testIteratorRemove() {
542		SynchronousQueue q = new SynchronousQueue();
543	<	Iterator it = q.iterator();
543	>	Iterator it = q.iterator();
544		try {
545		it.remove();
546		shouldThrow();
547	<	}
484	<	catch (IllegalStateException success) {}
547	>	} catch (IllegalStateException success) {}
548		}
549
550		/**
#	Line 491 | Line 554 | public class SynchronousQueueTest extend
554		SynchronousQueue q = new SynchronousQueue();
555		String s = q.toString();
556		assertNotNull(s);
557	<	}
557	>	}
558
559
560		/**
#	Line 500 | Line 563 | public class SynchronousQueueTest extend
563		public void testOfferInExecutor() {
564		final SynchronousQueue q = new SynchronousQueue();
565		ExecutorService executor = Executors.newFixedThreadPool(2);
503	–	final Integer one = new Integer(1);
566
567	<	executor.execute(new Runnable() {
568	<	public void run() {
569	<	threadAssertFalse(q.offer(one));
570	<	try {
571	<	threadAssertTrue(q.offer(one, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS));
572	<	threadAssertEquals(0, q.remainingCapacity());
573	<	}
574	<	catch (InterruptedException e) {
575	<	threadUnexpectedException();
576	<	}
577	<	}
578	<	});
567	>	executor.execute(new CheckedRunnable() {
568	>	public void realRun() throws InterruptedException {
569	>	assertFalse(q.offer(one));
570	>	assertTrue(q.offer(one, MEDIUM_DELAY_MS, MILLISECONDS));
571	>	assertEquals(0, q.remainingCapacity());
572	>	}});
573	>
574	>	executor.execute(new CheckedRunnable() {
575	>	public void realRun() throws InterruptedException {
576	>	Thread.sleep(SMALL_DELAY_MS);
577	>	assertSame(one, q.take());
578	>	}});
579
518	–	executor.execute(new Runnable() {
519	–	public void run() {
520	–	try {
521	–	Thread.sleep(SMALL_DELAY_MS);
522	–	threadAssertEquals(one, q.take());
523	–	}
524	–	catch (InterruptedException e) {
525	–	threadUnexpectedException();
526	–	}
527	–	}
528	–	});
529	–
580		joinPool(executor);
581
582		}
#	Line 537 | Line 587 | public class SynchronousQueueTest extend
587		public void testPollInExecutor() {
588		final SynchronousQueue q = new SynchronousQueue();
589		ExecutorService executor = Executors.newFixedThreadPool(2);
590	<	executor.execute(new Runnable() {
591	<	public void run() {
592	<	threadAssertNull(q.poll());
593	<	try {
594	<	threadAssertTrue(null != q.poll(MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS));
595	<	threadAssertTrue(q.isEmpty());
596	<	}
597	<	catch (InterruptedException e) {
598	<	threadUnexpectedException();
599	<	}
600	<	}
601	<	});
590	>	executor.execute(new CheckedRunnable() {
591	>	public void realRun() throws InterruptedException {
592	>	assertNull(q.poll());
593	>	assertSame(one, q.poll(MEDIUM_DELAY_MS, MILLISECONDS));
594	>	assertTrue(q.isEmpty());
595	>	}});
596	>
597	>	executor.execute(new CheckedRunnable() {
598	>	public void realRun() throws InterruptedException {
599	>	Thread.sleep(SHORT_DELAY_MS);
600	>	q.put(one);
601	>	}});
602
553	–	executor.execute(new Runnable() {
554	–	public void run() {
555	–	try {
556	–	Thread.sleep(SMALL_DELAY_MS);
557	–	q.put(new Integer(1));
558	–	}
559	–	catch (InterruptedException e) {
560	–	threadUnexpectedException();
561	–	}
562	–	}
563	–	});
564	–
603		joinPool(executor);
604		}
605
606		/**
607		* a deserialized serialized queue is usable
608		*/
609	<	public void testSerialization() {
609	>	public void testSerialization() throws Exception {
610		SynchronousQueue q = new SynchronousQueue();
611	<	try {
612	<	ByteArrayOutputStream bout = new ByteArrayOutputStream(10000);
613	<	ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout));
614	<	out.writeObject(q);
615	<	out.close();
616	<
617	<	ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray());
618	<	ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin));
619	<	SynchronousQueue r = (SynchronousQueue)in.readObject();
620	<	assertEquals(q.size(), r.size());
621	<	while (!q.isEmpty())
584	<	assertEquals(q.remove(), r.remove());
585	<	} catch(Exception e){
586	<	unexpectedException();
587	<	}
611	>	ByteArrayOutputStream bout = new ByteArrayOutputStream(10000);
612	>	ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout));
613	>	out.writeObject(q);
614	>	out.close();
615	>
616	>	ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray());
617	>	ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin));
618	>	SynchronousQueue r = (SynchronousQueue)in.readObject();
619	>	assertEquals(q.size(), r.size());
620	>	while (!q.isEmpty())
621	>	assertEquals(q.remove(), r.remove());
622		}
623
624		/**
625		* drainTo(null) throws NPE
626	<	*/
626	>	*/
627		public void testDrainToNull() {
628		SynchronousQueue q = new SynchronousQueue();
629		try {
630		q.drainTo(null);
631		shouldThrow();
632	<	} catch(NullPointerException success) {
599	<	}
632	>	} catch (NullPointerException success) {}
633		}
634
635		/**
636		* drainTo(this) throws IAE
637	<	*/
637	>	*/
638		public void testDrainToSelf() {
639		SynchronousQueue q = new SynchronousQueue();
640		try {
641		q.drainTo(q);
642		shouldThrow();
643	<	} catch(IllegalArgumentException success) {
611	<	}
643	>	} catch (IllegalArgumentException success) {}
644		}
645
646		/**
647		* drainTo(c) of empty queue doesn't transfer elements
648	<	*/
648	>	*/
649		public void testDrainTo() {
650		SynchronousQueue q = new SynchronousQueue();
651		ArrayList l = new ArrayList();
#	Line 624 | Line 656 | public class SynchronousQueueTest extend
656
657		/**
658		* drainTo empties queue, unblocking a waiting put.
659	<	*/
660	<	public void testDrainToWithActivePut() {
659	>	*/
660	>	public void testDrainToWithActivePut() throws InterruptedException {
661		final SynchronousQueue q = new SynchronousQueue();
662	<	Thread t = new Thread(new Runnable() {
663	<	public void run() {
664	<	try {
665	<	q.put(new Integer(1));
666	<	} catch (InterruptedException ie){
667	<	threadUnexpectedException();
668	<	}
669	<	}
670	<	});
671	<	try {
672	<	t.start();
673	<	ArrayList l = new ArrayList();
674	<	Thread.sleep(SHORT_DELAY_MS);
675	<	q.drainTo(l);
644	<	assertTrue(l.size() <= 1);
645	<	if (l.size() > 0)
646	<	assertEquals(l.get(0), new Integer(1));
647	<	t.join();
648	<	assertTrue(l.size() <= 1);
649	<	} catch(Exception e){
650	<	unexpectedException();
651	<	}
662	>	Thread t = new Thread(new CheckedRunnable() {
663	>	public void realRun() throws InterruptedException {
664	>	q.put(new Integer(1));
665	>	}});
666	>
667	>	t.start();
668	>	ArrayList l = new ArrayList();
669	>	Thread.sleep(SHORT_DELAY_MS);
670	>	q.drainTo(l);
671	>	assertTrue(l.size() <= 1);
672	>	if (l.size() > 0)
673	>	assertEquals(l.get(0), new Integer(1));
674	>	t.join();
675	>	assertTrue(l.size() <= 1);
676		}
677
678		/**
679		* drainTo(null, n) throws NPE
680	<	*/
680	>	*/
681		public void testDrainToNullN() {
682		SynchronousQueue q = new SynchronousQueue();
683		try {
684		q.drainTo(null, 0);
685		shouldThrow();
686	<	} catch(NullPointerException success) {
663	<	}
686	>	} catch (NullPointerException success) {}
687		}
688
689		/**
690		* drainTo(this, n) throws IAE
691	<	*/
691	>	*/
692		public void testDrainToSelfN() {
693		SynchronousQueue q = new SynchronousQueue();
694		try {
695		q.drainTo(q, 0);
696		shouldThrow();
697	<	} catch(IllegalArgumentException success) {
675	<	}
697	>	} catch (IllegalArgumentException success) {}
698		}
699
700		/**
701		* drainTo(c, n) empties up to n elements of queue into c
702	<	*/
703	<	public void testDrainToN() {
702	>	*/
703	>	public void testDrainToN() throws InterruptedException {
704		final SynchronousQueue q = new SynchronousQueue();
705	<	Thread t1 = new Thread(new Runnable() {
706	<	public void run() {
707	<	try {
708	<	q.put(one);
709	<	} catch (InterruptedException ie){
710	<	threadUnexpectedException();
711	<	}
712	<	}
713	<	});
692	<	Thread t2 = new Thread(new Runnable() {
693	<	public void run() {
694	<	try {
695	<	q.put(two);
696	<	} catch (InterruptedException ie){
697	<	threadUnexpectedException();
698	<	}
699	<	}
700	<	});
705	>	Thread t1 = new Thread(new CheckedRunnable() {
706	>	public void realRun() throws InterruptedException {
707	>	q.put(one);
708	>	}});
709	>
710	>	Thread t2 = new Thread(new CheckedRunnable() {
711	>	public void realRun() throws InterruptedException {
712	>	q.put(two);
713	>	}});
714
715	<	try {
716	<	t1.start();
717	<	t2.start();
718	<	ArrayList l = new ArrayList();
719	<	Thread.sleep(SHORT_DELAY_MS);
720	<	q.drainTo(l, 1);
721	<	assertTrue(l.size() == 1);
722	<	q.drainTo(l, 1);
723	<	assertTrue(l.size() == 2);
724	<	assertTrue(l.contains(one));
725	<	assertTrue(l.contains(two));
726	<	t1.join();
714	<	t2.join();
715	<	} catch(Exception e){
716	<	unexpectedException();
717	<	}
715	>	t1.start();
716	>	t2.start();
717	>	ArrayList l = new ArrayList();
718	>	Thread.sleep(SHORT_DELAY_MS);
719	>	q.drainTo(l, 1);
720	>	assertTrue(l.size() == 1);
721	>	q.drainTo(l, 1);
722	>	assertTrue(l.size() == 2);
723	>	assertTrue(l.contains(one));
724	>	assertTrue(l.contains(two));
725	>	t1.join();
726	>	t2.join();
727		}
728
720	–
729		}

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