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

Comparing jsr166/src/test/tck/DelayQueueTest.java (file contents):
Revision 1.4 by dl, Sat Sep 20 18:20:07 2003 UTC vs.
Revision 1.22 by jsr166, Sat Nov 21 19:11:53 2009 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.*;
11	+	import static java.util.concurrent.TimeUnit.MILLISECONDS;
12		import java.util.concurrent.*;
13
14		public class DelayQueueTest extends JSR166TestCase {
15		public static void main(String[] args) {
16	<	junit.textui.TestRunner.run (suite());
16	>	junit.textui.TestRunner.run (suite());
17		}
18
19		public static Test suite() {
20	<	return new TestSuite(DelayQueueTest.class);
20	>	return new TestSuite(DelayQueueTest.class);
21		}
22
23		private static final int NOCAP = Integer.MAX_VALUE;
24
25		/**
26	<	* A delayed implmentation for testing.
27	<	* Most Q/BQ tests use Pseudodelays, where delays are all elapsed
26	>	* A delayed implementation for testing.
27	>	* Most  tests use Pseudodelays, where delays are all elapsed
28		* (so, no blocking solely for delays) but are still ordered
29	<	*/
30	<	static class PDelay implements Delayed {
29	>	*/
30	>	static class PDelay implements Delayed {
31		int pseudodelay;
32		PDelay(int i) { pseudodelay = Integer.MIN_VALUE + i; }
33	<	public int compareTo(Object y) {
33	>	public int compareTo(PDelay y) {
34		int i = pseudodelay;
35		int j = ((PDelay)y).pseudodelay;
36		if (i < j) return -1;
#	Line 36 | Line 38 | public class DelayQueueTest extends JSR1
38		return 0;
39		}
40
41	<	public int compareTo(PDelay y) {
41	>	public int compareTo(Delayed y) {
42		int i = pseudodelay;
43		int j = ((PDelay)y).pseudodelay;
44		if (i < j) return -1;
#	Line 68 | Line 70 | public class DelayQueueTest extends JSR1
70		/**
71		* Delayed implementation that actually delays
72		*/
73	<	static class NanoDelay implements Delayed {
73	>	static class NanoDelay implements Delayed {
74		long trigger;
75	<	NanoDelay(long i) {
75	>	NanoDelay(long i) {
76		trigger = System.nanoTime() + i;
77		}
78	<	public int compareTo(Object y) {
78	>	public int compareTo(NanoDelay y) {
79		long i = trigger;
80		long j = ((NanoDelay)y).trigger;
81		if (i < j) return -1;
#	Line 81 | Line 83 | public class DelayQueueTest extends JSR1
83		return 0;
84		}
85
86	<	public int compareTo(NanoDelay y) {
86	>	public int compareTo(Delayed y) {
87		long i = trigger;
88		long j = ((NanoDelay)y).trigger;
89		if (i < j) return -1;
#	Line 118 | Line 120 | public class DelayQueueTest extends JSR1
120		private DelayQueue populatedQueue(int n) {
121		DelayQueue q = new DelayQueue();
122		assertTrue(q.isEmpty());
123	<	for(int i = n-1; i >= 0; i-=2)
124	<	assertTrue(q.offer(new PDelay(i)));
125	<	for(int i = (n & 1); i < n; i+=2)
126	<	assertTrue(q.offer(new PDelay(i)));
123	>	for (int i = n-1; i >= 0; i-=2)
124	>	assertTrue(q.offer(new PDelay(i)));
125	>	for (int i = (n & 1); i < n; i+=2)
126	>	assertTrue(q.offer(new PDelay(i)));
127		assertFalse(q.isEmpty());
128		assertEquals(NOCAP, q.remainingCapacity());
129	<	assertEquals(n, q.size());
129	>	assertEquals(n, q.size());
130		return q;
131		}
132	<
132	>
133		/**
134	<	*
134	>	* A new queue has unbounded capacity
135		*/
136		public void testConstructor1() {
137		assertEquals(NOCAP, new DelayQueue().remainingCapacity());
138		}
139
140		/**
141	<	*
141	>	* Initializing from null Collection throws NPE
142		*/
143		public void testConstructor3() {
144		try {
145		DelayQueue q = new DelayQueue(null);
146		shouldThrow();
147	<	}
146	<	catch (NullPointerException success) {}
147	>	} catch (NullPointerException success) {}
148		}
149
150		/**
151	<	*
151	>	* Initializing from Collection of null elements throws NPE
152		*/
153		public void testConstructor4() {
154		try {
155		PDelay[] ints = new PDelay[SIZE];
156		DelayQueue q = new DelayQueue(Arrays.asList(ints));
157		shouldThrow();
158	<	}
158	<	catch (NullPointerException success) {}
158	>	} catch (NullPointerException success) {}
159		}
160
161		/**
162	<	*
162	>	* Initializing from Collection with some null elements throws NPE
163		*/
164		public void testConstructor5() {
165		try {
#	Line 168 | Line 168 | public class DelayQueueTest extends JSR1
168		ints[i] = new PDelay(i);
169		DelayQueue q = new DelayQueue(Arrays.asList(ints));
170		shouldThrow();
171	<	}
172	<	catch (NullPointerException success) {}
171	>	} catch (NullPointerException success) {}
172		}
173
174		/**
175	<	*
175	>	* Queue contains all elements of collection used to initialize
176		*/
177		public void testConstructor6() {
178	<	try {
179	<	PDelay[] ints = new PDelay[SIZE];
180	<	for (int i = 0; i < SIZE; ++i)
181	<	ints[i] = new PDelay(i);
182	<	DelayQueue q = new DelayQueue(Arrays.asList(ints));
183	<	for (int i = 0; i < SIZE; ++i)
185	<	assertEquals(ints[i], q.poll());
186	<	}
187	<	finally {}
178	>	PDelay[] ints = new PDelay[SIZE];
179	>	for (int i = 0; i < SIZE; ++i)
180	>	ints[i] = new PDelay(i);
181	>	DelayQueue q = new DelayQueue(Arrays.asList(ints));
182	>	for (int i = 0; i < SIZE; ++i)
183	>	assertEquals(ints[i], q.poll());
184		}
185
186		/**
187	<	*
187	>	* isEmpty is true before add, false after
188		*/
189		public void testEmpty() {
190		DelayQueue q = new DelayQueue();
#	Line 203 | Line 199 | public class DelayQueueTest extends JSR1
199		}
200
201		/**
202	<	*
202	>	* remainingCapacity does not change when elementa added or removed,
203	>	* but size does
204		*/
205		public void testRemainingCapacity() {
206		DelayQueue q = populatedQueue(SIZE);
#	Line 220 | Line 217 | public class DelayQueueTest extends JSR1
217		}
218
219		/**
220	<	*
220	>	* offer(null) throws NPE
221		*/
222		public void testOfferNull() {
223	<	try {
223	>	try {
224		DelayQueue q = new DelayQueue();
225		q.offer(null);
226		shouldThrow();
227	<	} catch (NullPointerException success) { }
227	>	} catch (NullPointerException success) {}
228	>	}
229	>
230	>	/**
231	>	* add(null) throws NPE
232	>	*/
233	>	public void testAddNull() {
234	>	try {
235	>	DelayQueue q = new DelayQueue();
236	>	q.add(null);
237	>	shouldThrow();
238	>	} catch (NullPointerException success) {}
239		}
240
241		/**
242	<	*
242	>	* offer non-null succeeds
243		*/
244		public void testOffer() {
245		DelayQueue q = new DelayQueue();
#	Line 240 | Line 248 | public class DelayQueueTest extends JSR1
248		}
249
250		/**
251	<	*
251	>	* add succeeds
252		*/
253		public void testAdd() {
254		DelayQueue q = new DelayQueue();
#	Line 251 | Line 259 | public class DelayQueueTest extends JSR1
259		}
260
261		/**
262	<	*
262	>	* addAll(null) throws NPE
263		*/
264		public void testAddAll1() {
265		try {
266		DelayQueue q = new DelayQueue();
267		q.addAll(null);
268		shouldThrow();
269	<	}
262	<	catch (NullPointerException success) {}
269	>	} catch (NullPointerException success) {}
270		}
271	+
272	+
273		/**
274	<	*
274	>	* addAll(this) throws IAE
275	>	*/
276	>	public void testAddAllSelf() {
277	>	try {
278	>	DelayQueue q = populatedQueue(SIZE);
279	>	q.addAll(q);
280	>	shouldThrow();
281	>	} catch (IllegalArgumentException success) {}
282	>	}
283	>
284	>	/**
285	>	* addAll of a collection with null elements throws NPE
286		*/
287		public void testAddAll2() {
288		try {
#	Line 270 | Line 290 | public class DelayQueueTest extends JSR1
290		PDelay[] ints = new PDelay[SIZE];
291		q.addAll(Arrays.asList(ints));
292		shouldThrow();
293	<	}
274	<	catch (NullPointerException success) {}
293	>	} catch (NullPointerException success) {}
294		}
295		/**
296	<	*
296	>	* addAll of a collection with any null elements throws NPE after
297	>	* possibly adding some elements
298		*/
299		public void testAddAll3() {
300		try {
#	Line 284 | Line 304 | public class DelayQueueTest extends JSR1
304		ints[i] = new PDelay(i);
305		q.addAll(Arrays.asList(ints));
306		shouldThrow();
307	<	}
288	<	catch (NullPointerException success) {}
307	>	} catch (NullPointerException success) {}
308		}
309
310		/**
311	<	*
311	>	* Queue contains all elements of successful addAll
312		*/
313		public void testAddAll5() {
314	<	try {
315	<	PDelay[] empty = new PDelay[0];
316	<	PDelay[] ints = new PDelay[SIZE];
317	<	for (int i = SIZE-1; i >= 0; --i)
318	<	ints[i] = new PDelay(i);
319	<	DelayQueue q = new DelayQueue();
320	<	assertFalse(q.addAll(Arrays.asList(empty)));
321	<	assertTrue(q.addAll(Arrays.asList(ints)));
322	<	for (int i = 0; i < SIZE; ++i)
304	<	assertEquals(ints[i], q.poll());
305	<	}
306	<	finally {}
314	>	PDelay[] empty = new PDelay[0];
315	>	PDelay[] ints = new PDelay[SIZE];
316	>	for (int i = SIZE-1; i >= 0; --i)
317	>	ints[i] = new PDelay(i);
318	>	DelayQueue q = new DelayQueue();
319	>	assertFalse(q.addAll(Arrays.asList(empty)));
320	>	assertTrue(q.addAll(Arrays.asList(ints)));
321	>	for (int i = 0; i < SIZE; ++i)
322	>	assertEquals(ints[i], q.poll());
323		}
324
325		/**
326	<	*
326	>	* put(null) throws NPE
327		*/
328		public void testPutNull() {
329	<	try {
329	>	try {
330		DelayQueue q = new DelayQueue();
331		q.put(null);
332		shouldThrow();
333	<	}
318	<	catch (NullPointerException success){
319	<	}
333	>	} catch (NullPointerException success) {}
334		}
335
336		/**
337	<	*
337	>	* all elements successfully put are contained
338		*/
339		public void testPut() {
340	<	try {
341	<	DelayQueue q = new DelayQueue();
342	<	for (int i = 0; i < SIZE; ++i) {
343	<	PDelay I = new PDelay(i);
344	<	q.put(I);
331	<	assertTrue(q.contains(I));
332	<	}
333	<	assertEquals(SIZE, q.size());
340	>	DelayQueue q = new DelayQueue();
341	>	for (int i = 0; i < SIZE; ++i) {
342	>	PDelay I = new PDelay(i);
343	>	q.put(I);
344	>	assertTrue(q.contains(I));
345		}
346	<	finally {
336	<	}
346	>	assertEquals(SIZE, q.size());
347		}
348
349		/**
350	<	*
350	>	* put doesn't block waiting for take
351		*/
352	<	public void testPutWithTake() {
352	>	public void testPutWithTake() throws InterruptedException {
353		final DelayQueue q = new DelayQueue();
354	<	Thread t = new Thread(new Runnable() {
355	<	public void run() {
356	<	int added = 0;
357	<	try {
358	<	q.put(new PDelay(0));
359	<	++added;
360	<	q.put(new PDelay(0));
361	<	++added;
362	<	q.put(new PDelay(0));
363	<	++added;
364	<	q.put(new PDelay(0));
365	<	++added;
366	<	threadAssertTrue(added == 4);
357	<	} finally {
358	<	}
359	<	}
360	<	});
361	<	try {
362	<	t.start();
363	<	Thread.sleep(SHORT_DELAY_MS);
364	<	q.take();
365	<	t.interrupt();
366	<	t.join();
367	<	} catch (Exception e){
368	<	unexpectedException();
369	<	}
354	>	Thread t = new Thread(new CheckedRunnable() {
355	>	public void realRun() {
356	>	q.put(new PDelay(0));
357	>	q.put(new PDelay(0));
358	>	q.put(new PDelay(0));
359	>	q.put(new PDelay(0));
360	>	}});
361	>
362	>	t.start();
363	>	Thread.sleep(SHORT_DELAY_MS);
364	>	q.take();
365	>	t.interrupt();
366	>	t.join();
367		}
368
369		/**
370	<	*
370	>	* timed offer does not time out
371		*/
372	<	public void testTimedOffer() {
372	>	public void testTimedOffer() throws InterruptedException {
373		final DelayQueue q = new DelayQueue();
374	<	Thread t = new Thread(new Runnable() {
375	<	public void run() {
376	<	try {
377	<	q.put(new PDelay(0));
378	<	q.put(new PDelay(0));
379	<	threadAssertTrue(q.offer(new PDelay(0), SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
380	<	threadAssertTrue(q.offer(new PDelay(0), LONG_DELAY_MS, TimeUnit.MILLISECONDS));
381	<	} finally { }
382	<	}
383	<	});
384	<
385	<	try {
389	<	t.start();
390	<	Thread.sleep(SMALL_DELAY_MS);
391	<	t.interrupt();
392	<	t.join();
393	<	} catch (Exception e){
394	<	unexpectedException();
395	<	}
374	>	Thread t = new Thread(new CheckedRunnable() {
375	>	public void realRun() throws InterruptedException {
376	>	q.put(new PDelay(0));
377	>	q.put(new PDelay(0));
378	>	threadAssertTrue(q.offer(new PDelay(0), SHORT_DELAY_MS, MILLISECONDS));
379	>	threadAssertTrue(q.offer(new PDelay(0), LONG_DELAY_MS, MILLISECONDS));
380	>	}});
381	>
382	>	t.start();
383	>	Thread.sleep(SMALL_DELAY_MS);
384	>	t.interrupt();
385	>	t.join();
386		}
387
388		/**
389	<	*
389	>	* take retrieves elements in priority order
390		*/
391	<	public void testTake() {
392	<	try {
393	<	DelayQueue q = populatedQueue(SIZE);
394	<	for (int i = 0; i < SIZE; ++i) {
395	<	assertEquals(new PDelay(i), ((PDelay)q.take()));
406	<	}
407	<	} catch (InterruptedException e){
408	<	unexpectedException();
409	<	}
391	>	public void testTake() throws InterruptedException {
392	>	DelayQueue q = populatedQueue(SIZE);
393	>	for (int i = 0; i < SIZE; ++i) {
394	>	assertEquals(new PDelay(i), ((PDelay)q.take()));
395	>	}
396		}
397
398		/**
399	<	*
399	>	* take blocks interruptibly when empty
400		*/
401	<	public void testTakeFromEmpty() {
401	>	public void testTakeFromEmpty() throws InterruptedException {
402		final DelayQueue q = new DelayQueue();
403	<	Thread t = new Thread(new Runnable() {
404	<	public void run() {
405	<	try {
406	<	q.take();
407	<	threadShouldThrow();
408	<	} catch (InterruptedException success){ }
409	<	}
410	<	});
411	<	try {
426	<	t.start();
427	<	Thread.sleep(SHORT_DELAY_MS);
428	<	t.interrupt();
429	<	t.join();
430	<	} catch (Exception e){
431	<	unexpectedException();
432	<	}
403	>	Thread t = new ThreadShouldThrow(InterruptedException.class) {
404	>	public void realRun() throws InterruptedException {
405	>	q.take();
406	>	}};
407	>
408	>	t.start();
409	>	Thread.sleep(SHORT_DELAY_MS);
410	>	t.interrupt();
411	>	t.join();
412		}
413
414		/**
415	<	*
416	<	*/
417	<	public void testBlockingTake() {
418	<	Thread t = new Thread(new Runnable() {
419	<	public void run() {
420	<	try {
421	<	DelayQueue q = populatedQueue(SIZE);
422	<	for (int i = 0; i < SIZE; ++i) {
423	<	threadAssertEquals(new PDelay(i), ((PDelay)q.take()));
424	<	}
425	<	q.take();
426	<	threadShouldThrow();
448	<	} catch (InterruptedException success){
449	<	}
450	<	}});
415	>	* Take removes existing elements until empty, then blocks interruptibly
416	>	*/
417	>	public void testBlockingTake() throws InterruptedException {
418	>	Thread t = new ThreadShouldThrow(InterruptedException.class) {
419	>	public void realRun() throws InterruptedException {
420	>	DelayQueue q = populatedQueue(SIZE);
421	>	for (int i = 0; i < SIZE; ++i) {
422	>	threadAssertEquals(new PDelay(i), ((PDelay)q.take()));
423	>	}
424	>	q.take();
425	>	}};
426	>
427		t.start();
428	<	try {
429	<	Thread.sleep(SHORT_DELAY_MS);
430	<	t.interrupt();
455	<	t.join();
456	<	}
457	<	catch (InterruptedException ie) {
458	<	unexpectedException();
459	<	}
428	>	Thread.sleep(SHORT_DELAY_MS);
429	>	t.interrupt();
430	>	t.join();
431		}
432
433
434		/**
435	<	*
435	>	* poll succeeds unless empty
436		*/
437		public void testPoll() {
438		DelayQueue q = populatedQueue(SIZE);
439		for (int i = 0; i < SIZE; ++i) {
440		assertEquals(new PDelay(i), ((PDelay)q.poll()));
441		}
442	<	assertNull(q.poll());
442	>	assertNull(q.poll());
443		}
444
445		/**
446	<	*
446	>	* timed pool with zero timeout succeeds when non-empty, else times out
447		*/
448	<	public void testTimedPoll0() {
449	<	try {
450	<	DelayQueue q = populatedQueue(SIZE);
451	<	for (int i = 0; i < SIZE; ++i) {
452	<	assertEquals(new PDelay(i), ((PDelay)q.poll(0, TimeUnit.MILLISECONDS)));
453	<	}
483	<	assertNull(q.poll(0, TimeUnit.MILLISECONDS));
484	<	} catch (InterruptedException e){
485	<	unexpectedException();
486	<	}
448	>	public void testTimedPoll0() throws InterruptedException {
449	>	DelayQueue q = populatedQueue(SIZE);
450	>	for (int i = 0; i < SIZE; ++i) {
451	>	assertEquals(new PDelay(i), ((PDelay)q.poll(0, MILLISECONDS)));
452	>	}
453	>	assertNull(q.poll(0, MILLISECONDS));
454		}
455
456		/**
457	<	*
457	>	* timed pool with nonzero timeout succeeds when non-empty, else times out
458		*/
459	<	public void testTimedPoll() {
460	<	try {
461	<	DelayQueue q = populatedQueue(SIZE);
462	<	for (int i = 0; i < SIZE; ++i) {
463	<	assertEquals(new PDelay(i), ((PDelay)q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS)));
464	<	}
498	<	assertNull(q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
499	<	} catch (InterruptedException e){
500	<	unexpectedException();
501	<	}
459	>	public void testTimedPoll() throws InterruptedException {
460	>	DelayQueue q = populatedQueue(SIZE);
461	>	for (int i = 0; i < SIZE; ++i) {
462	>	assertEquals(new PDelay(i), ((PDelay)q.poll(SHORT_DELAY_MS, MILLISECONDS)));
463	>	}
464	>	assertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS));
465		}
466
467		/**
468	<	*
469	<	*/
470	<	public void testInterruptedTimedPoll() {
471	<	Thread t = new Thread(new Runnable() {
472	<	public void run() {
473	<	try {
474	<	DelayQueue q = populatedQueue(SIZE);
475	<	for (int i = 0; i < SIZE; ++i) {
476	<	threadAssertEquals(new PDelay(i), ((PDelay)q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS)));
477	<	}
478	<	threadAssertNull(q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
479	<	} catch (InterruptedException success){
480	<	}
481	<	}});
468	>	* Interrupted timed poll throws InterruptedException instead of
469	>	* returning timeout status
470	>	*/
471	>	public void testInterruptedTimedPoll() throws InterruptedException {
472	>	Thread t = new Thread(new CheckedRunnable() {
473	>	public void realRun() throws InterruptedException {
474	>	DelayQueue q = populatedQueue(SIZE);
475	>	for (int i = 0; i < SIZE; ++i) {
476	>	assertEquals(new PDelay(i), ((PDelay)q.poll(SHORT_DELAY_MS, MILLISECONDS)));
477	>	}
478	>	try {
479	>	q.poll(SMALL_DELAY_MS, MILLISECONDS);
480	>	shouldThrow();
481	>	} catch (InterruptedException success) {}
482	>	}});
483	>
484		t.start();
485	<	try {
486	<	Thread.sleep(SHORT_DELAY_MS);
487	<	t.interrupt();
523	<	t.join();
524	<	}
525	<	catch (InterruptedException ie) {
526	<	unexpectedException();
527	<	}
485	>	Thread.sleep(SHORT_DELAY_MS);
486	>	t.interrupt();
487	>	t.join();
488		}
489
490		/**
491	<	*
491	>	*  timed poll before a delayed offer fails; after offer succeeds;
492	>	*  on interruption throws
493		*/
494	<	public void testTimedPollWithOffer() {
494	>	public void testTimedPollWithOffer() throws InterruptedException {
495		final DelayQueue q = new DelayQueue();
496	<	Thread t = new Thread(new Runnable() {
497	<	public void run() {
498	<	try {
499	<	threadAssertNull(q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
500	<	q.poll(LONG_DELAY_MS, TimeUnit.MILLISECONDS);
501	<	q.poll(LONG_DELAY_MS, TimeUnit.MILLISECONDS);
502	<	threadFail("Should block");
503	<	} catch (InterruptedException success) { }
504	<	}
505	<	});
506	<	try {
507	<	t.start();
508	<	Thread.sleep(SMALL_DELAY_MS);
509	<	assertTrue(q.offer(new PDelay(0), SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
510	<	t.interrupt();
511	<	t.join();
551	<	} catch (Exception e){
552	<	unexpectedException();
553	<	}
554	<	}
496	>	Thread t = new Thread(new CheckedRunnable() {
497	>	public void realRun() throws InterruptedException {
498	>	assertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS));
499	>	q.poll(LONG_DELAY_MS, MILLISECONDS);
500	>	try {
501	>	q.poll(LONG_DELAY_MS, MILLISECONDS);
502	>	shouldThrow();
503	>	} catch (InterruptedException success) {}
504	>	}});
505	>
506	>	t.start();
507	>	Thread.sleep(SMALL_DELAY_MS);
508	>	assertTrue(q.offer(new PDelay(0), SHORT_DELAY_MS, MILLISECONDS));
509	>	t.interrupt();
510	>	t.join();
511	>	}
512
513
514		/**
515	<	*
515	>	* peek returns next element, or null if empty
516		*/
517		public void testPeek() {
518		DelayQueue q = populatedQueue(SIZE);
519		for (int i = 0; i < SIZE; ++i) {
520		assertEquals(new PDelay(i), ((PDelay)q.peek()));
521		q.poll();
522	<	assertTrue(q.peek() == null ||
523	<	i != ((PDelay)q.peek()).intValue());
522	>	if (q.isEmpty())
523	>	assertNull(q.peek());
524	>	else
525	>	assertTrue(i != ((PDelay)q.peek()).intValue());
526		}
527	<	assertNull(q.peek());
527	>	assertNull(q.peek());
528		}
529
530		/**
531	<	*
531	>	* element returns next element, or throws NSEE if empty
532		*/
533		public void testElement() {
534		DelayQueue q = populatedQueue(SIZE);
#	Line 580 | Line 539 | public class DelayQueueTest extends JSR1
539		try {
540		q.element();
541		shouldThrow();
542	<	}
584	<	catch (NoSuchElementException success) {}
542	>	} catch (NoSuchElementException success) {}
543		}
544
545		/**
546	<	*
546	>	* remove removes next element, or throws NSEE if empty
547		*/
548		public void testRemove() {
549		DelayQueue q = populatedQueue(SIZE);
#	Line 595 | Line 553 | public class DelayQueueTest extends JSR1
553		try {
554		q.remove();
555		shouldThrow();
556	<	} catch (NoSuchElementException success){
599	<	}
556	>	} catch (NoSuchElementException success) {}
557		}
558
559		/**
560	<	*
560	>	* remove(x) removes x and returns true if present
561		*/
562		public void testRemoveElement() {
563		DelayQueue q = populatedQueue(SIZE);
#	Line 613 | Line 570 | public class DelayQueueTest extends JSR1
570		}
571		assertTrue(q.isEmpty());
572		}
573	<
573	>
574		/**
575	<	*
575	>	* contains(x) reports true when elements added but not yet removed
576		*/
577		public void testContains() {
578		DelayQueue q = populatedQueue(SIZE);
#	Line 627 | Line 584 | public class DelayQueueTest extends JSR1
584		}
585
586		/**
587	<	*
587	>	* clear removes all elements
588		*/
589		public void testClear() {
590		DelayQueue q = populatedQueue(SIZE);
#	Line 635 | Line 592 | public class DelayQueueTest extends JSR1
592		assertTrue(q.isEmpty());
593		assertEquals(0, q.size());
594		assertEquals(NOCAP, q.remainingCapacity());
595	<	q.add(new PDelay(1));
595	>	PDelay x = new PDelay(1);
596	>	q.add(x);
597		assertFalse(q.isEmpty());
598	+	assertTrue(q.contains(x));
599		q.clear();
600		assertTrue(q.isEmpty());
601		}
602
603		/**
604	<	*
604	>	* containsAll(c) is true when c contains a subset of elements
605		*/
606		public void testContainsAll() {
607		DelayQueue q = populatedQueue(SIZE);
#	Line 656 | Line 615 | public class DelayQueueTest extends JSR1
615		}
616
617		/**
618	<	*
618	>	* retainAll(c) retains only those elements of c and reports true if changed
619		*/
620		public void testRetainAll() {
621		DelayQueue q = populatedQueue(SIZE);
#	Line 675 | Line 634 | public class DelayQueueTest extends JSR1
634		}
635
636		/**
637	<	*
637	>	* removeAll(c) removes only those elements of c and reports true if changed
638		*/
639		public void testRemoveAll() {
640		for (int i = 1; i < SIZE; ++i) {
#	Line 691 | Line 650 | public class DelayQueueTest extends JSR1
650		}
651
652		/**
653	<	*
653	>	* toArray contains all elements
654		*/
655	<	public void testToArray() {
655	>	public void testToArray() throws InterruptedException {
656		DelayQueue q = populatedQueue(SIZE);
657	<	Object[] o = q.toArray();
657	>	Object[] o = q.toArray();
658		Arrays.sort(o);
659	<	try {
660	<	for(int i = 0; i < o.length; i++)
702	<	assertEquals(o[i], q.take());
703	<	} catch (InterruptedException e){
704	<	unexpectedException();
705	<	}
659	>	for (int i = 0; i < o.length; i++)
660	>	assertEquals(o[i], q.take());
661		}
662
663		/**
664	<	*
664	>	* toArray(a) contains all elements
665		*/
666	<	public void testToArray2() {
666	>	public void testToArray2() throws InterruptedException {
667		DelayQueue q = populatedQueue(SIZE);
668	<	PDelay[] ints = new PDelay[SIZE];
669	<	ints = (PDelay[])q.toArray(ints);
668	>	PDelay[] ints = new PDelay[SIZE];
669	>	ints = (PDelay[])q.toArray(ints);
670		Arrays.sort(ints);
671	<	try {
672	<	for(int i = 0; i < ints.length; i++)
718	<	assertEquals(ints[i], q.take());
719	<	} catch (InterruptedException e){
720	<	unexpectedException();
721	<	}
671	>	for (int i = 0; i < ints.length; i++)
672	>	assertEquals(ints[i], q.take());
673		}
674	<
674	>
675	>
676	>	/**
677	>	* toArray(null) throws NPE
678	>	*/
679	>	public void testToArray_BadArg() {
680	>	try {
681	>	DelayQueue q = populatedQueue(SIZE);
682	>	Object o[] = q.toArray(null);
683	>	shouldThrow();
684	>	} catch (NullPointerException success) {}
685	>	}
686	>
687	>	/**
688	>	* toArray with incompatible array type throws CCE
689	>	*/
690	>	public void testToArray1_BadArg() {
691	>	try {
692	>	DelayQueue q = populatedQueue(SIZE);
693	>	Object o[] = q.toArray(new String[10] );
694	>	shouldThrow();
695	>	} catch (ArrayStoreException success) {}
696	>	}
697	>
698		/**
699	<	*
699	>	* iterator iterates through all elements
700		*/
701		public void testIterator() {
702		DelayQueue q = populatedQueue(SIZE);
703		int i = 0;
704	<	Iterator it = q.iterator();
705	<	while(it.hasNext()) {
704	>	Iterator it = q.iterator();
705	>	while (it.hasNext()) {
706		assertTrue(q.contains(it.next()));
707		++i;
708		}
#	Line 736 | Line 710 | public class DelayQueueTest extends JSR1
710		}
711
712		/**
713	<	*
713	>	* iterator.remove removes current element
714		*/
715		public void testIteratorRemove () {
742	–
716		final DelayQueue q = new DelayQueue();
744	–
717		q.add(new PDelay(2));
718		q.add(new PDelay(1));
719		q.add(new PDelay(3));
748	–
720		Iterator it = q.iterator();
721		it.next();
722		it.remove();
752	–
723		it = q.iterator();
724		assertEquals(it.next(), new PDelay(2));
725		assertEquals(it.next(), new PDelay(3));
#	Line 758 | Line 728 | public class DelayQueueTest extends JSR1
728
729
730		/**
731	<	*
731	>	* toString contains toStrings of elements
732		*/
733		public void testToString() {
734		DelayQueue q = populatedQueue(SIZE);
#	Line 766 | Line 736 | public class DelayQueueTest extends JSR1
736		for (int i = 0; i < SIZE; ++i) {
737		assertTrue(s.indexOf(String.valueOf(Integer.MIN_VALUE+i)) >= 0);
738		}
739	<	}
739	>	}
740
741		/**
742	<	*
742	>	* offer transfers elements across Executor tasks
743		*/
744		public void testPollInExecutor() {
775	–
745		final DelayQueue q = new DelayQueue();
777	–
746		ExecutorService executor = Executors.newFixedThreadPool(2);
747	<
748	<	executor.execute(new Runnable() {
781	<	public void run() {
747	>	executor.execute(new CheckedRunnable() {
748	>	public void realRun() throws InterruptedException {
749		threadAssertNull(q.poll());
750	<	try {
751	<	threadAssertTrue(null != q.poll(MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS));
752	<	threadAssertTrue(q.isEmpty());
753	<	}
754	<	catch (InterruptedException e) {
755	<	threadUnexpectedException();
756	<	}
757	<	}
758	<	});
750	>	threadAssertTrue(null != q.poll(MEDIUM_DELAY_MS, MILLISECONDS));
751	>	threadAssertTrue(q.isEmpty());
752	>	}});
753	>
754	>	executor.execute(new CheckedRunnable() {
755	>	public void realRun() throws InterruptedException {
756	>	Thread.sleep(SHORT_DELAY_MS);
757	>	q.put(new PDelay(1));
758	>	}});
759
793	–	executor.execute(new Runnable() {
794	–	public void run() {
795	–	try {
796	–	Thread.sleep(SHORT_DELAY_MS);
797	–	q.put(new PDelay(1));
798	–	}
799	–	catch (InterruptedException e) {
800	–	threadUnexpectedException();
801	–	}
802	–	}
803	–	});
804	–
760		joinPool(executor);
761
762		}
763
764
765		/**
766	<	*
766	>	* Delayed actions do not occur until their delay elapses
767		*/
768	<	public void testDelay() {
768	>	public void testDelay() throws InterruptedException {
769		DelayQueue q = new DelayQueue();
770		NanoDelay[] elements = new NanoDelay[SIZE];
771		for (int i = 0; i < SIZE; ++i) {
#	Line 820 | Line 775 | public class DelayQueueTest extends JSR1
775		q.add(elements[i]);
776		}
777
778	+	long last = 0;
779	+	for (int i = 0; i < SIZE; ++i) {
780	+	NanoDelay e = (NanoDelay)(q.take());
781	+	long tt = e.getTriggerTime();
782	+	assertTrue(tt <= System.nanoTime());
783	+	if (i != 0)
784	+	assertTrue(tt >= last);
785	+	last = tt;
786	+	}
787	+	}
788	+
789	+	/**
790	+	* peek of a non-empty queue returns non-null even if not expired
791	+	*/
792	+	public void testPeekDelayed() {
793	+	DelayQueue q = new DelayQueue();
794	+	q.add(new NanoDelay(Long.MAX_VALUE));
795	+	assert(q.peek() != null);
796	+	}
797	+
798	+
799	+	/**
800	+	* poll of a non-empty queue returns null if no expired elements.
801	+	*/
802	+	public void testPollDelayed() {
803	+	DelayQueue q = new DelayQueue();
804	+	q.add(new NanoDelay(Long.MAX_VALUE));
805	+	assertNull(q.poll());
806	+	}
807	+
808	+	/**
809	+	* timed poll of a non-empty queue returns null if no expired elements.
810	+	*/
811	+	public void testTimedPollDelayed() throws InterruptedException {
812	+	DelayQueue q = new DelayQueue();
813	+	q.add(new NanoDelay(LONG_DELAY_MS * 1000000L));
814	+	assertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS));
815	+	}
816	+
817	+	/**
818	+	* drainTo(null) throws NPE
819	+	*/
820	+	public void testDrainToNull() {
821	+	DelayQueue q = populatedQueue(SIZE);
822		try {
823	<	long last = 0;
824	<	for (int i = 0; i < SIZE; ++i) {
825	<	NanoDelay e = (NanoDelay)(q.take());
826	<	long tt = e.getTriggerTime();
827	<	assertTrue(tt <= System.nanoTime());
828	<	if (i != 0)
829	<	assertTrue(tt >= last);
830	<	last = tt;
831	<	}
823	>	q.drainTo(null);
824	>	shouldThrow();
825	>	} catch (NullPointerException success) {}
826	>	}
827	>
828	>	/**
829	>	* drainTo(this) throws IAE
830	>	*/
831	>	public void testDrainToSelf() {
832	>	DelayQueue q = populatedQueue(SIZE);
833	>	try {
834	>	q.drainTo(q);
835	>	shouldThrow();
836	>	} catch (IllegalArgumentException success) {}
837	>	}
838	>
839	>	/**
840	>	* drainTo(c) empties queue into another collection c
841	>	*/
842	>	public void testDrainTo() {
843	>	DelayQueue q = new DelayQueue();
844	>	PDelay[] elems = new PDelay[SIZE];
845	>	for (int i = 0; i < SIZE; ++i) {
846	>	elems[i] = new PDelay(i);
847	>	q.add(elems[i]);
848		}
849	<	catch(InterruptedException ie) {
850	<	unexpectedException();
849	>	ArrayList l = new ArrayList();
850	>	q.drainTo(l);
851	>	assertEquals(q.size(), 0);
852	>	for (int i = 0; i < SIZE; ++i)
853	>	assertEquals(l.get(i), elems[i]);
854	>	q.add(elems[0]);
855	>	q.add(elems[1]);
856	>	assertFalse(q.isEmpty());
857	>	assertTrue(q.contains(elems[0]));
858	>	assertTrue(q.contains(elems[1]));
859	>	l.clear();
860	>	q.drainTo(l);
861	>	assertEquals(q.size(), 0);
862	>	assertEquals(l.size(), 2);
863	>	for (int i = 0; i < 2; ++i)
864	>	assertEquals(l.get(i), elems[i]);
865	>	}
866	>
867	>	/**
868	>	* drainTo empties queue
869	>	*/
870	>	public void testDrainToWithActivePut() throws InterruptedException {
871	>	final DelayQueue q = populatedQueue(SIZE);
872	>	Thread t = new Thread(new CheckedRunnable() {
873	>	public void realRun() {
874	>	q.put(new PDelay(SIZE+1));
875	>	}});
876	>
877	>	t.start();
878	>	ArrayList l = new ArrayList();
879	>	q.drainTo(l);
880	>	assertTrue(l.size() >= SIZE);
881	>	t.join();
882	>	assertTrue(q.size() + l.size() >= SIZE);
883	>	}
884	>
885	>	/**
886	>	* drainTo(null, n) throws NPE
887	>	*/
888	>	public void testDrainToNullN() {
889	>	DelayQueue q = populatedQueue(SIZE);
890	>	try {
891	>	q.drainTo(null, 0);
892	>	shouldThrow();
893	>	} catch (NullPointerException success) {}
894	>	}
895	>
896	>	/**
897	>	* drainTo(this, n) throws IAE
898	>	*/
899	>	public void testDrainToSelfN() {
900	>	DelayQueue q = populatedQueue(SIZE);
901	>	try {
902	>	q.drainTo(q, 0);
903	>	shouldThrow();
904	>	} catch (IllegalArgumentException success) {}
905	>	}
906	>
907	>	/**
908	>	* drainTo(c, n) empties first max {n, size} elements of queue into c
909	>	*/
910	>	public void testDrainToN() {
911	>	for (int i = 0; i < SIZE + 2; ++i) {
912	>	DelayQueue q = populatedQueue(SIZE);
913	>	ArrayList l = new ArrayList();
914	>	q.drainTo(l, i);
915	>	int k = (i < SIZE)? i : SIZE;
916	>	assertEquals(q.size(), SIZE-k);
917	>	assertEquals(l.size(), k);
918		}
919		}
920
921	+
922		}

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