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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 1.23 by jsr166, Thu Sep 16 00:52:49 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.*;
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		/**
124		* addAll throws ISE if no active taker
125		*/
#	Line 122 | Line 131 | public class SynchronousQueueTest extend
131		ints[i] = new Integer(i);
132		q.addAll(Arrays.asList(ints));
133		shouldThrow();
134	<	}
126	<	catch (IllegalStateException success) {}
134	>	} catch (IllegalStateException success) {}
135		}
136
137		/**
138		* put(null) throws NPE
139		*/
140	<	public void testPutNull() {
141	<	try {
140	>	public void testPutNull() throws InterruptedException {
141	>	try {
142		SynchronousQueue q = new SynchronousQueue();
143		q.put(null);
144		shouldThrow();
145	<	}
138	<	catch (NullPointerException success){
139	<	}
140	<	catch (InterruptedException ie) {
141	<	unexpectedException();
142	<	}
145	>	} catch (NullPointerException success) {}
146		}
147
148		/**
149		* put blocks interruptibly if no active taker
150		*/
151	<	public void testBlockingPut() {
152	<	Thread t = new Thread(new Runnable() {
153	<	public void run() {
154	<	try {
155	<	SynchronousQueue q = new SynchronousQueue();
156	<	q.put(zero);
157	<	threadShouldThrow();
158	<	} catch (InterruptedException ie){
159	<	}
160	<	}});
161	<	t.start();
159	<	try {
160	<	Thread.sleep(SHORT_DELAY_MS);
161	<	t.interrupt();
162	<	t.join();
163	<	}
164	<	catch (InterruptedException ie) {
165	<	unexpectedException();
166	<	}
151	>	public void testBlockingPut() throws InterruptedException {
152	>	Thread t = new Thread(new CheckedInterruptedRunnable() {
153	>	public void realRun() throws InterruptedException {
154	>	SynchronousQueue q = new SynchronousQueue();
155	>	q.put(zero);
156	>	}});
157	>
158	>	t.start();
159	>	Thread.sleep(SHORT_DELAY_MS);
160	>	t.interrupt();
161	>	t.join();
162		}
163
164		/**
165	<	* put blocks waiting for take
165	>	* put blocks waiting for take
166		*/
167	<	public void testPutWithTake() {
167	>	public void testPutWithTake() throws InterruptedException {
168		final SynchronousQueue q = new SynchronousQueue();
169	<	Thread t = new Thread(new Runnable() {
170	<	public void run() {
171	<	int added = 0;
172	<	try {
173	<	q.put(new Object());
174	<	++added;
180	<	q.put(new Object());
181	<	++added;
182	<	q.put(new Object());
183	<	++added;
184	<	q.put(new Object());
169	>	Thread t = new Thread(new CheckedRunnable() {
170	>	public void realRun() throws InterruptedException {
171	>	int added = 0;
172	>	try {
173	>	while (true) {
174	>	q.put(added);
175		++added;
186	–	threadShouldThrow();
187	–	} catch (InterruptedException e){
188	–	assertTrue(added >= 1);
176		}
177	+	} catch (InterruptedException success) {
178	+	assertEquals(1, added);
179		}
180	<	});
181	<	try {
182	<	t.start();
183	<	Thread.sleep(SHORT_DELAY_MS);
184	<	q.take();
185	<	Thread.sleep(SHORT_DELAY_MS);
186	<	t.interrupt();
187	<	t.join();
199	<	} catch (Exception e){
200	<	unexpectedException();
201	<	}
180	>	}});
181	>
182	>	t.start();
183	>	Thread.sleep(SHORT_DELAY_MS);
184	>	assertEquals(0, q.take());
185	>	Thread.sleep(SHORT_DELAY_MS);
186	>	t.interrupt();
187	>	t.join();
188		}
189
190		/**
191		* timed offer times out if elements not taken
192		*/
193	<	public void testTimedOffer() {
193	>	public void testTimedOffer() throws InterruptedException {
194		final SynchronousQueue q = new SynchronousQueue();
195	<	Thread t = new Thread(new Runnable() {
196	<	public void run() {
197	<	try {
198	<
199	<	threadAssertFalse(q.offer(new Object(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
200	<	q.offer(new Object(), LONG_DELAY_MS, TimeUnit.MILLISECONDS);
201	<	threadShouldThrow();
202	<	} catch (InterruptedException success){}
203	<	}
204	<	});
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	<	}
195	>	Thread t = new Thread(new CheckedInterruptedRunnable() {
196	>	public void realRun() throws InterruptedException {
197	>	assertFalse(q.offer(new Object(), SHORT_DELAY_MS, MILLISECONDS));
198	>	q.offer(new Object(), LONG_DELAY_MS, MILLISECONDS);
199	>	}});
200	>
201	>	t.start();
202	>	Thread.sleep(SMALL_DELAY_MS);
203	>	t.interrupt();
204	>	t.join();
205		}
206
207
208		/**
209		* take blocks interruptibly when empty
210		*/
211	<	public void testTakeFromEmpty() {
211	>	public void testTakeFromEmpty() throws InterruptedException {
212		final SynchronousQueue q = new SynchronousQueue();
213	<	Thread t = new Thread(new Runnable() {
214	<	public void run() {
215	<	try {
216	<	q.take();
217	<	threadShouldThrow();
218	<	} catch (InterruptedException success){ }
213	>	Thread t = new Thread(new CheckedInterruptedRunnable() {
214	>	public void realRun() throws InterruptedException {
215	>	q.take();
216	>	}});
217	>
218	>	t.start();
219	>	Thread.sleep(SHORT_DELAY_MS);
220	>	t.interrupt();
221	>	t.join();
222	>	}
223	>
224	>
225	>	/**
226	>	* put blocks interruptibly if no active taker
227	>	*/
228	>	public void testFairBlockingPut() throws InterruptedException {
229	>	Thread t = new Thread(new CheckedInterruptedRunnable() {
230	>	public void realRun() throws InterruptedException {
231	>	SynchronousQueue q = new SynchronousQueue(true);
232	>	q.put(zero);
233	>	}});
234	>
235	>	t.start();
236	>	Thread.sleep(SHORT_DELAY_MS);
237	>	t.interrupt();
238	>	t.join();
239	>	}
240	>
241	>	/**
242	>	* put blocks waiting for take
243	>	*/
244	>	public void testFairPutWithTake() throws InterruptedException {
245	>	final SynchronousQueue q = new SynchronousQueue(true);
246	>	Thread t = new Thread(new CheckedRunnable() {
247	>	public void realRun() throws InterruptedException {
248	>	int added = 0;
249	>	try {
250	>	while (true) {
251	>	q.put(added);
252	>	++added;
253	>	}
254	>	} catch (InterruptedException success) {
255	>	assertEquals(1, added);
256		}
257	<	});
258	<	try {
259	<	t.start();
260	<	Thread.sleep(SHORT_DELAY_MS);
261	<	t.interrupt();
262	<	t.join();
263	<	} catch (Exception e){
264	<	unexpectedException();
265	<	}
257	>	}});
258	>
259	>	t.start();
260	>	Thread.sleep(SHORT_DELAY_MS);
261	>	assertEquals(0, q.take());
262	>	Thread.sleep(SHORT_DELAY_MS);
263	>	t.interrupt();
264	>	t.join();
265	>	}
266	>
267	>	/**
268	>	* timed offer times out if elements not taken
269	>	*/
270	>	public void testFairTimedOffer() throws InterruptedException {
271	>	final SynchronousQueue q = new SynchronousQueue(true);
272	>	Thread t = new Thread(new CheckedInterruptedRunnable() {
273	>	public void realRun() throws InterruptedException {
274	>	assertFalse(q.offer(new Object(), SHORT_DELAY_MS, MILLISECONDS));
275	>	q.offer(new Object(), LONG_DELAY_MS, MILLISECONDS);
276	>	}});
277	>
278	>	t.start();
279	>	Thread.sleep(SMALL_DELAY_MS);
280	>	t.interrupt();
281	>	t.join();
282	>	}
283	>
284	>
285	>	/**
286	>	* take blocks interruptibly when empty
287	>	*/
288	>	public void testFairTakeFromEmpty() throws InterruptedException {
289	>	final SynchronousQueue q = new SynchronousQueue(true);
290	>	Thread t = new Thread(new CheckedInterruptedRunnable() {
291	>	public void realRun() throws InterruptedException {
292	>	q.take();
293	>	}});
294	>
295	>	t.start();
296	>	Thread.sleep(SHORT_DELAY_MS);
297	>	t.interrupt();
298	>	t.join();
299		}
300
301		/**
#	Line 256 | Line 303 | public class SynchronousQueueTest extend
303		*/
304		public void testPoll() {
305		SynchronousQueue q = new SynchronousQueue();
306	<	assertNull(q.poll());
306	>	assertNull(q.poll());
307		}
308
309		/**
310		* timed pool with zero timeout times out if no active taker
311		*/
312	<	public void testTimedPoll0() {
313	<	try {
314	<	SynchronousQueue q = new SynchronousQueue();
268	<	assertNull(q.poll(0, TimeUnit.MILLISECONDS));
269	<	} catch (InterruptedException e){
270	<	unexpectedException();
271	<	}
312	>	public void testTimedPoll0() throws InterruptedException {
313	>	SynchronousQueue q = new SynchronousQueue();
314	>	assertNull(q.poll(0, MILLISECONDS));
315		}
316
317		/**
318		* timed pool with nonzero timeout times out if no active taker
319		*/
320	<	public void testTimedPoll() {
321	<	try {
322	<	SynchronousQueue q = new SynchronousQueue();
280	<	assertNull(q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
281	<	} catch (InterruptedException e){
282	<	unexpectedException();
283	<	}
320	>	public void testTimedPoll() throws InterruptedException {
321	>	SynchronousQueue q = new SynchronousQueue();
322	>	assertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS));
323		}
324
325		/**
326		* Interrupted timed poll throws InterruptedException instead of
327		* returning timeout status
328		*/
329	<	public void testInterruptedTimedPoll() {
330	<	Thread t = new Thread(new Runnable() {
331	<	public void run() {
332	<	try {
333	<	SynchronousQueue q = new SynchronousQueue();
334	<	assertNull(q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
335	<	} catch (InterruptedException success){
336	<	}
337	<	}});
338	<	t.start();
339	<	try {
301	<	Thread.sleep(SHORT_DELAY_MS);
302	<	t.interrupt();
303	<	t.join();
304	<	}
305	<	catch (InterruptedException ie) {
306	<	unexpectedException();
307	<	}
329	>	public void testInterruptedTimedPoll() throws InterruptedException {
330	>	final SynchronousQueue q = new SynchronousQueue();
331	>	Thread t = new Thread(new CheckedInterruptedRunnable() {
332	>	public void realRun() throws InterruptedException {
333	>	q.poll(SMALL_DELAY_MS, MILLISECONDS);
334	>	}});
335	>
336	>	t.start();
337	>	Thread.sleep(SHORT_DELAY_MS);
338	>	t.interrupt();
339	>	t.join();
340		}
341
342		/**
343		*  timed poll before a delayed offer fails; after offer succeeds;
344		*  on interruption throws
345		*/
346	<	public void testTimedPollWithOffer() {
346	>	public void testTimedPollWithOffer() throws InterruptedException {
347		final SynchronousQueue q = new SynchronousQueue();
348	<	Thread t = new Thread(new Runnable() {
349	<	public void run() {
350	<	try {
351	<	threadAssertNull(q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
352	<	q.poll(LONG_DELAY_MS, TimeUnit.MILLISECONDS);
353	<	q.poll(LONG_DELAY_MS, TimeUnit.MILLISECONDS);
354	<	threadShouldThrow();
355	<	} catch (InterruptedException success) { }
356	<	}
357	<	});
358	<	try {
359	<	t.start();
360	<	Thread.sleep(SMALL_DELAY_MS);
361	<	assertTrue(q.offer(zero, SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
362	<	t.interrupt();
363	<	t.join();
364	<	} catch (Exception e){
365	<	unexpectedException();
366	<	}
367	<	}
348	>	Thread t = new Thread(new CheckedRunnable() {
349	>	public void realRun() throws InterruptedException {
350	>	assertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS));
351	>	assertSame(zero, q.poll(LONG_DELAY_MS, MILLISECONDS));
352	>	try {
353	>	q.poll(LONG_DELAY_MS, MILLISECONDS);
354	>	shouldThrow();
355	>	} catch (InterruptedException success) {}
356	>	}});
357	>
358	>	t.start();
359	>	Thread.sleep(SMALL_DELAY_MS);
360	>	assertTrue(q.offer(zero, SHORT_DELAY_MS, MILLISECONDS));
361	>	t.interrupt();
362	>	t.join();
363	>	}
364	>
365	>	/**
366	>	* Interrupted timed poll throws InterruptedException instead of
367	>	* returning timeout status
368	>	*/
369	>	public void testFairInterruptedTimedPoll() throws InterruptedException {
370	>	Thread t = new Thread(new CheckedInterruptedRunnable() {
371	>	public void realRun() throws InterruptedException {
372	>	SynchronousQueue q = new SynchronousQueue(true);
373	>	q.poll(SMALL_DELAY_MS, MILLISECONDS);
374	>	}});
375	>
376	>	t.start();
377	>	Thread.sleep(SHORT_DELAY_MS);
378	>	t.interrupt();
379	>	t.join();
380	>	}
381	>
382	>	/**
383	>	*  timed poll before a delayed offer fails; after offer succeeds;
384	>	*  on interruption throws
385	>	*/
386	>	public void testFairTimedPollWithOffer() throws InterruptedException {
387	>	final SynchronousQueue q = new SynchronousQueue(true);
388	>	Thread t = new Thread(new CheckedRunnable() {
389	>	public void realRun() throws InterruptedException {
390	>	assertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS));
391	>	assertSame(zero, q.poll(LONG_DELAY_MS, MILLISECONDS));
392	>	try {
393	>	q.poll(LONG_DELAY_MS, MILLISECONDS);
394	>	threadShouldThrow();
395	>	} catch (InterruptedException success) {}
396	>	}});
397	>
398	>	t.start();
399	>	Thread.sleep(SMALL_DELAY_MS);
400	>	assertTrue(q.offer(zero, SHORT_DELAY_MS, MILLISECONDS));
401	>	t.interrupt();
402	>	t.join();
403	>	}
404
405
406		/**
#	Line 340 | Line 408 | public class SynchronousQueueTest extend
408		*/
409		public void testPeek() {
410		SynchronousQueue q = new SynchronousQueue();
411	<	assertNull(q.peek());
411	>	assertNull(q.peek());
412		}
413
414		/**
#	Line 351 | Line 419 | public class SynchronousQueueTest extend
419		try {
420		q.element();
421		shouldThrow();
422	<	}
355	<	catch (NoSuchElementException success) {}
422	>	} catch (NoSuchElementException success) {}
423		}
424
425		/**
#	Line 363 | Line 430 | public class SynchronousQueueTest extend
430		try {
431		q.remove();
432		shouldThrow();
433	<	} catch (NoSuchElementException success){
367	<	}
433	>	} catch (NoSuchElementException success) {}
434		}
435
436		/**
#	Line 375 | Line 441 | public class SynchronousQueueTest extend
441		assertFalse(q.remove(zero));
442		assertTrue(q.isEmpty());
443		}
444	<
444	>
445		/**
446		* contains returns false
447		*/
#	Line 432 | Line 498 | public class SynchronousQueueTest extend
498		*/
499		public void testToArray() {
500		SynchronousQueue q = new SynchronousQueue();
501	<	Object[] o = q.toArray();
501	>	Object[] o = q.toArray();
502		assertEquals(o.length, 0);
503		}
504
#	Line 441 | Line 507 | public class SynchronousQueueTest extend
507		*/
508		public void testToArray2() {
509		SynchronousQueue q = new SynchronousQueue();
510	<	Integer[] ints = new Integer[1];
510	>	Integer[] ints = new Integer[1];
511		assertNull(ints[0]);
512		}
513	<
513	>
514		/**
515		* toArray(null) throws NPE
516		*/
517		public void testToArray_BadArg() {
518	<	try {
519	<	SynchronousQueue q = new SynchronousQueue();
520	<	Object o[] = q.toArray(null);
521	<	shouldThrow();
522	<	} catch(NullPointerException success){}
518	>	SynchronousQueue q = new SynchronousQueue();
519	>	try {
520	>	Object o[] = q.toArray(null);
521	>	shouldThrow();
522	>	} catch (NullPointerException success) {}
523		}
524
525
#	Line 462 | Line 528 | public class SynchronousQueueTest extend
528		*/
529		public void testIterator() {
530		SynchronousQueue q = new SynchronousQueue();
531	<	Iterator it = q.iterator();
531	>	Iterator it = q.iterator();
532		assertFalse(it.hasNext());
533		try {
534		Object x = it.next();
535		shouldThrow();
536	<	}
471	<	catch (NoSuchElementException success) {}
536	>	} catch (NoSuchElementException success) {}
537		}
538
539		/**
#	Line 476 | Line 541 | public class SynchronousQueueTest extend
541		*/
542		public void testIteratorRemove() {
543		SynchronousQueue q = new SynchronousQueue();
544	<	Iterator it = q.iterator();
544	>	Iterator it = q.iterator();
545		try {
546		it.remove();
547		shouldThrow();
548	<	}
484	<	catch (IllegalStateException success) {}
548	>	} catch (IllegalStateException success) {}
549		}
550
551		/**
#	Line 491 | Line 555 | public class SynchronousQueueTest extend
555		SynchronousQueue q = new SynchronousQueue();
556		String s = q.toString();
557		assertNotNull(s);
558	<	}
558	>	}
559
560
561		/**
#	Line 500 | Line 564 | public class SynchronousQueueTest extend
564		public void testOfferInExecutor() {
565		final SynchronousQueue q = new SynchronousQueue();
566		ExecutorService executor = Executors.newFixedThreadPool(2);
503	–	final Integer one = new Integer(1);
567
568	<	executor.execute(new Runnable() {
569	<	public void run() {
570	<	threadAssertFalse(q.offer(one));
571	<	try {
572	<	threadAssertTrue(q.offer(one, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS));
573	<	threadAssertEquals(0, q.remainingCapacity());
574	<	}
575	<	catch (InterruptedException e) {
576	<	threadUnexpectedException();
577	<	}
578	<	}
579	<	});
568	>	executor.execute(new CheckedRunnable() {
569	>	public void realRun() throws InterruptedException {
570	>	assertFalse(q.offer(one));
571	>	assertTrue(q.offer(one, MEDIUM_DELAY_MS, MILLISECONDS));
572	>	assertEquals(0, q.remainingCapacity());
573	>	}});
574	>
575	>	executor.execute(new CheckedRunnable() {
576	>	public void realRun() throws InterruptedException {
577	>	Thread.sleep(SMALL_DELAY_MS);
578	>	assertSame(one, q.take());
579	>	}});
580
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	–
581		joinPool(executor);
531	–
582		}
583
584		/**
#	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	>	assertEquals(1, l.size());
721	>	q.drainTo(l, 1);
722	>	assertEquals(2, l.size());
723	>	assertTrue(l.contains(one));
724	>	assertTrue(l.contains(two));
725	>	t1.join();
726	>	t2.join();
727		}
728
720	–
729		}

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