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

Comparing jsr166/src/test/tck/DelayQueueTest.java (file contents):
Revision 1.20 by jsr166, Sat Nov 21 09:28:16 2009 UTC vs.
Revision 1.78 by jsr166, Sun Oct 16 20:44:18 2016 UTC

#	Line 1 | Line 1
1		/*
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
4	>	* http://creativecommons.org/publicdomain/zero/1.0/
5		* Other contributors include Andrew Wright, Jeffrey Hayes,
6		* Pat Fisher, Mike Judd.
7		*/
8
9	–	import junit.framework.*;
10	–	import java.util.*;
9		import static java.util.concurrent.TimeUnit.MILLISECONDS;
10	<	import java.util.concurrent.*;
10	>
11	>	import java.util.ArrayList;
12	>	import java.util.Arrays;
13	>	import java.util.Collection;
14	>	import java.util.Iterator;
15	>	import java.util.NoSuchElementException;
16	>	import java.util.concurrent.BlockingQueue;
17	>	import java.util.concurrent.CountDownLatch;
18	>	import java.util.concurrent.Delayed;
19	>	import java.util.concurrent.DelayQueue;
20	>	import java.util.concurrent.Executors;
21	>	import java.util.concurrent.ExecutorService;
22	>	import java.util.concurrent.TimeUnit;
23	>
24	>	import junit.framework.Test;
25
26		public class DelayQueueTest extends JSR166TestCase {
27	+
28	+	public static class Generic extends BlockingQueueTest {
29	+	protected BlockingQueue emptyCollection() {
30	+	return new DelayQueue();
31	+	}
32	+	protected PDelay makeElement(int i) {
33	+	return new PDelay(i);
34	+	}
35	+	}
36	+
37		public static void main(String[] args) {
38	<	junit.textui.TestRunner.run (suite());
38	>	main(suite(), args);
39		}
40
41		public static Test suite() {
42	<	return new TestSuite(DelayQueueTest.class);
42	>	return newTestSuite(DelayQueueTest.class,
43	>	new Generic().testSuite());
44		}
45
23	–	private static final int NOCAP = Integer.MAX_VALUE;
24	–
46		/**
47		* A delayed implementation for testing.
48	<	* Most  tests use Pseudodelays, where delays are all elapsed
48	>	* Most tests use Pseudodelays, where delays are all elapsed
49		* (so, no blocking solely for delays) but are still ordered
50		*/
51		static class PDelay implements Delayed {
52		int pseudodelay;
53	<	PDelay(int i) { pseudodelay = Integer.MIN_VALUE + i; }
54	<	public int compareTo(PDelay y) {
55	<	int i = pseudodelay;
56	<	int j = ((PDelay)y).pseudodelay;
57	<	if (i < j) return -1;
37	<	if (i > j) return 1;
38	<	return 0;
53	>	PDelay(int i) { pseudodelay = i; }
54	>	public int compareTo(PDelay other) {
55	>	int a = this.pseudodelay;
56	>	int b = other.pseudodelay;
57	>	return (a < b) ? -1 : (a > b) ? 1 : 0;
58		}
40	–
59		public int compareTo(Delayed y) {
60	<	int i = pseudodelay;
43	<	int j = ((PDelay)y).pseudodelay;
44	<	if (i < j) return -1;
45	<	if (i > j) return 1;
46	<	return 0;
60	>	return compareTo((PDelay)y);
61		}
48	–
62		public boolean equals(Object other) {
63	<	return ((PDelay)other).pseudodelay == pseudodelay;
63	>	return (other instanceof PDelay) &&
64	>	this.pseudodelay == ((PDelay)other).pseudodelay;
65		}
66	<	public boolean equals(PDelay other) {
67	<	return ((PDelay)other).pseudodelay == pseudodelay;
54	<	}
55	<
56	<
66	>	// suppress [overrides] javac warning
67	>	public int hashCode() { return pseudodelay; }
68		public long getDelay(TimeUnit ignore) {
69	<	return pseudodelay;
59	<	}
60	<	public int intValue() {
61	<	return pseudodelay;
69	>	return Integer.MIN_VALUE + pseudodelay;
70		}
63	–
71		public String toString() {
72		return String.valueOf(pseudodelay);
73		}
74		}
75
69	–
76		/**
77		* Delayed implementation that actually delays
78		*/
#	Line 77 | Line 83 | public class DelayQueueTest extends JSR1
83		}
84		public int compareTo(NanoDelay y) {
85		long i = trigger;
86	<	long j = ((NanoDelay)y).trigger;
86	>	long j = y.trigger;
87		if (i < j) return -1;
88		if (i > j) return 1;
89		return 0;
90		}
91
92		public int compareTo(Delayed y) {
93	<	long i = trigger;
88	<	long j = ((NanoDelay)y).trigger;
89	<	if (i < j) return -1;
90	<	if (i > j) return 1;
91	<	return 0;
93	>	return compareTo((NanoDelay)y);
94		}
95
96		public boolean equals(Object other) {
97	<	return ((NanoDelay)other).trigger == trigger;
98	<	}
97	<	public boolean equals(NanoDelay other) {
98	<	return ((NanoDelay)other).trigger == trigger;
97	>	return (other instanceof NanoDelay) &&
98	>	this.trigger == ((NanoDelay)other).trigger;
99		}
100
101	+	// suppress [overrides] javac warning
102	+	public int hashCode() { return (int) trigger; }
103	+
104		public long getDelay(TimeUnit unit) {
105		long n = trigger - System.nanoTime();
106		return unit.convert(n, TimeUnit.NANOSECONDS);
#	Line 112 | Line 115 | public class DelayQueueTest extends JSR1
115		}
116		}
117
115	–
118		/**
119	<	* Create a queue of given size containing consecutive
120	<	* PDelays 0 ... n.
119	>	* Returns a new queue of given size containing consecutive
120	>	* PDelays 0 ... n - 1.
121		*/
122	<	private DelayQueue populatedQueue(int n) {
123	<	DelayQueue q = new DelayQueue();
122	>	private DelayQueue<PDelay> populatedQueue(int n) {
123	>	DelayQueue<PDelay> q = new DelayQueue<PDelay>();
124		assertTrue(q.isEmpty());
125	<	for (int i = n-1; i >= 0; i-=2)
125	>	for (int i = n - 1; i >= 0; i -= 2)
126		assertTrue(q.offer(new PDelay(i)));
127	<	for (int i = (n & 1); i < n; i+=2)
127	>	for (int i = (n & 1); i < n; i += 2)
128		assertTrue(q.offer(new PDelay(i)));
129		assertFalse(q.isEmpty());
130	<	assertEquals(NOCAP, q.remainingCapacity());
130	>	assertEquals(Integer.MAX_VALUE, q.remainingCapacity());
131		assertEquals(n, q.size());
132	+	assertEquals(new PDelay(0), q.peek());
133		return q;
134		}
135
#	Line 134 | Line 137 | public class DelayQueueTest extends JSR1
137		* A new queue has unbounded capacity
138		*/
139		public void testConstructor1() {
140	<	assertEquals(NOCAP, new DelayQueue().remainingCapacity());
140	>	assertEquals(Integer.MAX_VALUE, new DelayQueue().remainingCapacity());
141		}
142
143		/**
#	Line 142 | Line 145 | public class DelayQueueTest extends JSR1
145		*/
146		public void testConstructor3() {
147		try {
148	<	DelayQueue q = new DelayQueue(null);
148	>	new DelayQueue(null);
149		shouldThrow();
150		} catch (NullPointerException success) {}
151		}
#	Line 152 | Line 155 | public class DelayQueueTest extends JSR1
155		*/
156		public void testConstructor4() {
157		try {
158	<	PDelay[] ints = new PDelay[SIZE];
156	<	DelayQueue q = new DelayQueue(Arrays.asList(ints));
158	>	new DelayQueue(Arrays.asList(new PDelay[SIZE]));
159		shouldThrow();
160		} catch (NullPointerException success) {}
161		}
#	Line 162 | Line 164 | public class DelayQueueTest extends JSR1
164		* Initializing from Collection with some null elements throws NPE
165		*/
166		public void testConstructor5() {
167	+	PDelay[] a = new PDelay[SIZE];
168	+	for (int i = 0; i < SIZE - 1; ++i)
169	+	a[i] = new PDelay(i);
170		try {
171	<	PDelay[] ints = new PDelay[SIZE];
167	<	for (int i = 0; i < SIZE-1; ++i)
168	<	ints[i] = new PDelay(i);
169	<	DelayQueue q = new DelayQueue(Arrays.asList(ints));
171	>	new DelayQueue(Arrays.asList(a));
172		shouldThrow();
173		} catch (NullPointerException success) {}
174		}
#	Line 175 | Line 177 | public class DelayQueueTest extends JSR1
177		* Queue contains all elements of collection used to initialize
178		*/
179		public void testConstructor6() {
180	<	try {
181	<	PDelay[] ints = new PDelay[SIZE];
182	<	for (int i = 0; i < SIZE; ++i)
183	<	ints[i] = new PDelay(i);
184	<	DelayQueue q = new DelayQueue(Arrays.asList(ints));
185	<	for (int i = 0; i < SIZE; ++i)
184	<	assertEquals(ints[i], q.poll());
185	<	}
186	<	finally {}
180	>	PDelay[] ints = new PDelay[SIZE];
181	>	for (int i = 0; i < SIZE; ++i)
182	>	ints[i] = new PDelay(i);
183	>	DelayQueue q = new DelayQueue(Arrays.asList(ints));
184	>	for (int i = 0; i < SIZE; ++i)
185	>	assertEquals(ints[i], q.poll());
186		}
187
188		/**
#	Line 192 | Line 191 | public class DelayQueueTest extends JSR1
191		public void testEmpty() {
192		DelayQueue q = new DelayQueue();
193		assertTrue(q.isEmpty());
194	<	assertEquals(NOCAP, q.remainingCapacity());
194	>	assertEquals(Integer.MAX_VALUE, q.remainingCapacity());
195		q.add(new PDelay(1));
196		assertFalse(q.isEmpty());
197		q.add(new PDelay(2));
#	Line 202 | Line 201 | public class DelayQueueTest extends JSR1
201		}
202
203		/**
204	<	* remainingCapacity does not change when elementa added or removed,
206	<	* but size does
204	>	* remainingCapacity() always returns Integer.MAX_VALUE
205		*/
206		public void testRemainingCapacity() {
207	<	DelayQueue q = populatedQueue(SIZE);
207	>	BlockingQueue q = populatedQueue(SIZE);
208		for (int i = 0; i < SIZE; ++i) {
209	<	assertEquals(NOCAP, q.remainingCapacity());
210	<	assertEquals(SIZE-i, q.size());
211	<	q.remove();
209	>	assertEquals(Integer.MAX_VALUE, q.remainingCapacity());
210	>	assertEquals(SIZE - i, q.size());
211	>	assertTrue(q.remove() instanceof PDelay);
212		}
213		for (int i = 0; i < SIZE; ++i) {
214	<	assertEquals(NOCAP, q.remainingCapacity());
214	>	assertEquals(Integer.MAX_VALUE, q.remainingCapacity());
215		assertEquals(i, q.size());
216	<	q.add(new PDelay(i));
216	>	assertTrue(q.add(new PDelay(i)));
217		}
218		}
219
220		/**
223	–	* offer(null) throws NPE
224	–	*/
225	–	public void testOfferNull() {
226	–	try {
227	–	DelayQueue q = new DelayQueue();
228	–	q.offer(null);
229	–	shouldThrow();
230	–	} catch (NullPointerException success) {}
231	–	}
232	–
233	–	/**
234	–	* add(null) throws NPE
235	–	*/
236	–	public void testAddNull() {
237	–	try {
238	–	DelayQueue q = new DelayQueue();
239	–	q.add(null);
240	–	shouldThrow();
241	–	} catch (NullPointerException success) {}
242	–	}
243	–
244	–	/**
221		* offer non-null succeeds
222		*/
223		public void testOffer() {
#	Line 262 | Line 238 | public class DelayQueueTest extends JSR1
238		}
239
240		/**
265	–	* addAll(null) throws NPE
266	–	*/
267	–	public void testAddAll1() {
268	–	try {
269	–	DelayQueue q = new DelayQueue();
270	–	q.addAll(null);
271	–	shouldThrow();
272	–	} catch (NullPointerException success) {}
273	–	}
274	–
275	–
276	–	/**
241		* addAll(this) throws IAE
242		*/
243		public void testAddAllSelf() {
244	+	DelayQueue q = populatedQueue(SIZE);
245		try {
281	–	DelayQueue q = populatedQueue(SIZE);
246		q.addAll(q);
247		shouldThrow();
248		} catch (IllegalArgumentException success) {}
249		}
250
251		/**
288	–	* addAll of a collection with null elements throws NPE
289	–	*/
290	–	public void testAddAll2() {
291	–	try {
292	–	DelayQueue q = new DelayQueue();
293	–	PDelay[] ints = new PDelay[SIZE];
294	–	q.addAll(Arrays.asList(ints));
295	–	shouldThrow();
296	–	} catch (NullPointerException success) {}
297	–	}
298	–	/**
252		* addAll of a collection with any null elements throws NPE after
253		* possibly adding some elements
254		*/
255		public void testAddAll3() {
256	+	DelayQueue q = new DelayQueue();
257	+	PDelay[] a = new PDelay[SIZE];
258	+	for (int i = 0; i < SIZE - 1; ++i)
259	+	a[i] = new PDelay(i);
260		try {
261	<	DelayQueue q = new DelayQueue();
305	<	PDelay[] ints = new PDelay[SIZE];
306	<	for (int i = 0; i < SIZE-1; ++i)
307	<	ints[i] = new PDelay(i);
308	<	q.addAll(Arrays.asList(ints));
261	>	q.addAll(Arrays.asList(a));
262		shouldThrow();
263		} catch (NullPointerException success) {}
264		}
#	Line 314 | Line 267 | public class DelayQueueTest extends JSR1
267		* Queue contains all elements of successful addAll
268		*/
269		public void testAddAll5() {
270	<	try {
271	<	PDelay[] empty = new PDelay[0];
272	<	PDelay[] ints = new PDelay[SIZE];
273	<	for (int i = SIZE-1; i >= 0; --i)
274	<	ints[i] = new PDelay(i);
275	<	DelayQueue q = new DelayQueue();
276	<	assertFalse(q.addAll(Arrays.asList(empty)));
277	<	assertTrue(q.addAll(Arrays.asList(ints)));
278	<	for (int i = 0; i < SIZE; ++i)
326	<	assertEquals(ints[i], q.poll());
327	<	}
328	<	finally {}
270	>	PDelay[] empty = new PDelay[0];
271	>	PDelay[] ints = new PDelay[SIZE];
272	>	for (int i = SIZE - 1; i >= 0; --i)
273	>	ints[i] = new PDelay(i);
274	>	DelayQueue q = new DelayQueue();
275	>	assertFalse(q.addAll(Arrays.asList(empty)));
276	>	assertTrue(q.addAll(Arrays.asList(ints)));
277	>	for (int i = 0; i < SIZE; ++i)
278	>	assertEquals(ints[i], q.poll());
279		}
280
281		/**
332	–	* put(null) throws NPE
333	–	*/
334	–	public void testPutNull() {
335	–	try {
336	–	DelayQueue q = new DelayQueue();
337	–	q.put(null);
338	–	shouldThrow();
339	–	} catch (NullPointerException success) {}
340	–	}
341	–
342	–	/**
282		* all elements successfully put are contained
283		*/
284	<	public void testPut() {
285	<	DelayQueue q = new DelayQueue();
286	<	for (int i = 0; i < SIZE; ++i) {
287	<	PDelay I = new PDelay(i);
288	<	q.put(I);
289	<	assertTrue(q.contains(I));
290	<	}
291	<	assertEquals(SIZE, q.size());
284	>	public void testPut() {
285	>	DelayQueue q = new DelayQueue();
286	>	for (int i = 0; i < SIZE; ++i) {
287	>	PDelay x = new PDelay(i);
288	>	q.put(x);
289	>	assertTrue(q.contains(x));
290	>	}
291	>	assertEquals(SIZE, q.size());
292		}
293
294		/**
#	Line 357 | Line 296 | public class DelayQueueTest extends JSR1
296		*/
297		public void testPutWithTake() throws InterruptedException {
298		final DelayQueue q = new DelayQueue();
299	<	Thread t = new Thread(new CheckedRunnable() {
299	>	Thread t = newStartedThread(new CheckedRunnable() {
300		public void realRun() {
301		q.put(new PDelay(0));
302		q.put(new PDelay(0));
#	Line 365 | Line 304 | public class DelayQueueTest extends JSR1
304		q.put(new PDelay(0));
305		}});
306
307	<	t.start();
308	<	Thread.sleep(SHORT_DELAY_MS);
370	<	q.take();
371	<	t.interrupt();
372	<	t.join();
307	>	awaitTermination(t);
308	>	assertEquals(4, q.size());
309		}
310
311		/**
#	Line 377 | Line 313 | public class DelayQueueTest extends JSR1
313		*/
314		public void testTimedOffer() throws InterruptedException {
315		final DelayQueue q = new DelayQueue();
316	<	Thread t = new Thread(new CheckedRunnable() {
316	>	Thread t = newStartedThread(new CheckedRunnable() {
317		public void realRun() throws InterruptedException {
318		q.put(new PDelay(0));
319		q.put(new PDelay(0));
320	<	threadAssertTrue(q.offer(new PDelay(0), SHORT_DELAY_MS, MILLISECONDS));
321	<	threadAssertTrue(q.offer(new PDelay(0), LONG_DELAY_MS, MILLISECONDS));
320	>	assertTrue(q.offer(new PDelay(0), SHORT_DELAY_MS, MILLISECONDS));
321	>	assertTrue(q.offer(new PDelay(0), LONG_DELAY_MS, MILLISECONDS));
322		}});
323
324	<	t.start();
389	<	Thread.sleep(SMALL_DELAY_MS);
390	<	t.interrupt();
391	<	t.join();
324	>	awaitTermination(t);
325		}
326
327		/**
#	Line 397 | Line 330 | public class DelayQueueTest extends JSR1
330		public void testTake() throws InterruptedException {
331		DelayQueue q = populatedQueue(SIZE);
332		for (int i = 0; i < SIZE; ++i) {
333	<	assertEquals(new PDelay(i), ((PDelay)q.take()));
333	>	assertEquals(new PDelay(i), q.take());
334		}
335		}
336
337		/**
405	–	* take blocks interruptibly when empty
406	–	*/
407	–	public void testTakeFromEmpty() throws InterruptedException {
408	–	final DelayQueue q = new DelayQueue();
409	–	Thread t = new ThreadShouldThrow(InterruptedException.class) {
410	–	public void realRun() throws InterruptedException {
411	–	q.take();
412	–	}};
413	–
414	–	t.start();
415	–	Thread.sleep(SHORT_DELAY_MS);
416	–	t.interrupt();
417	–	t.join();
418	–	}
419	–
420	–	/**
338		* Take removes existing elements until empty, then blocks interruptibly
339		*/
340		public void testBlockingTake() throws InterruptedException {
341	<	Thread t = new ThreadShouldThrow(InterruptedException.class) {
341	>	final DelayQueue q = populatedQueue(SIZE);
342	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
343	>	Thread t = newStartedThread(new CheckedRunnable() {
344		public void realRun() throws InterruptedException {
426	–	DelayQueue q = populatedQueue(SIZE);
345		for (int i = 0; i < SIZE; ++i) {
346	<	threadAssertEquals(new PDelay(i), ((PDelay)q.take()));
346	>	assertEquals(new PDelay(i), ((PDelay)q.take()));
347		}
430	–	q.take();
431	–	}};
348
349	<	t.start();
350	<	Thread.sleep(SHORT_DELAY_MS);
349	>	Thread.currentThread().interrupt();
350	>	try {
351	>	q.take();
352	>	shouldThrow();
353	>	} catch (InterruptedException success) {}
354	>	assertFalse(Thread.interrupted());
355	>
356	>	pleaseInterrupt.countDown();
357	>	try {
358	>	q.take();
359	>	shouldThrow();
360	>	} catch (InterruptedException success) {}
361	>	assertFalse(Thread.interrupted());
362	>	}});
363	>
364	>	await(pleaseInterrupt);
365	>	assertThreadStaysAlive(t);
366		t.interrupt();
367	<	t.join();
367	>	awaitTermination(t);
368		}
369
439	–
370		/**
371		* poll succeeds unless empty
372		*/
373		public void testPoll() {
374		DelayQueue q = populatedQueue(SIZE);
375		for (int i = 0; i < SIZE; ++i) {
376	<	assertEquals(new PDelay(i), ((PDelay)q.poll()));
376	>	assertEquals(new PDelay(i), q.poll());
377		}
378		assertNull(q.poll());
379		}
380
381		/**
382	<	* timed pool with zero timeout succeeds when non-empty, else times out
382	>	* timed poll with zero timeout succeeds when non-empty, else times out
383		*/
384		public void testTimedPoll0() throws InterruptedException {
385		DelayQueue q = populatedQueue(SIZE);
386		for (int i = 0; i < SIZE; ++i) {
387	<	assertEquals(new PDelay(i), ((PDelay)q.poll(0, MILLISECONDS)));
387	>	assertEquals(new PDelay(i), q.poll(0, MILLISECONDS));
388		}
389		assertNull(q.poll(0, MILLISECONDS));
390		}
391
392		/**
393	<	* timed pool with nonzero timeout succeeds when non-empty, else times out
393	>	* timed poll with nonzero timeout succeeds when non-empty, else times out
394		*/
395		public void testTimedPoll() throws InterruptedException {
396		DelayQueue q = populatedQueue(SIZE);
397		for (int i = 0; i < SIZE; ++i) {
398	<	assertEquals(new PDelay(i), ((PDelay)q.poll(SHORT_DELAY_MS, MILLISECONDS)));
399	<	}
400	<	assertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS));
398	>	long startTime = System.nanoTime();
399	>	assertEquals(new PDelay(i), q.poll(LONG_DELAY_MS, MILLISECONDS));
400	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
401	>	}
402	>	long startTime = System.nanoTime();
403	>	assertNull(q.poll(timeoutMillis(), MILLISECONDS));
404	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
405	>	checkEmpty(q);
406		}
407
408		/**
#	Line 475 | Line 410 | public class DelayQueueTest extends JSR1
410		* returning timeout status
411		*/
412		public void testInterruptedTimedPoll() throws InterruptedException {
413	<	Thread t = new Thread(new CheckedRunnable() {
413	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
414	>	final DelayQueue q = populatedQueue(SIZE);
415	>	Thread t = newStartedThread(new CheckedRunnable() {
416		public void realRun() throws InterruptedException {
417	<	DelayQueue q = populatedQueue(SIZE);
417	>	long startTime = System.nanoTime();
418		for (int i = 0; i < SIZE; ++i) {
419	<	assertEquals(new PDelay(i), ((PDelay)q.poll(SHORT_DELAY_MS, MILLISECONDS)));
419	>	assertEquals(new PDelay(i),
420	>	((PDelay)q.poll(LONG_DELAY_MS, MILLISECONDS)));
421		}
422	+
423	+	Thread.currentThread().interrupt();
424		try {
425		q.poll(LONG_DELAY_MS, MILLISECONDS);
426		shouldThrow();
427		} catch (InterruptedException success) {}
428	<	}});
428	>	assertFalse(Thread.interrupted());
429
430	<	t.start();
491	<	Thread.sleep(SHORT_DELAY_MS);
492	<	t.interrupt();
493	<	t.join();
494	<	}
495	<
496	<	/**
497	<	*  timed poll before a delayed offer fails; after offer succeeds;
498	<	*  on interruption throws
499	<	*/
500	<	public void testTimedPollWithOffer() throws InterruptedException {
501	<	final DelayQueue q = new DelayQueue();
502	<	Thread t = new Thread(new CheckedRunnable() {
503	<	public void realRun() throws InterruptedException {
504	<	assertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS));
505	<	q.poll(LONG_DELAY_MS, MILLISECONDS);
430	>	pleaseInterrupt.countDown();
431		try {
432		q.poll(LONG_DELAY_MS, MILLISECONDS);
433		shouldThrow();
434		} catch (InterruptedException success) {}
435	+	assertFalse(Thread.interrupted());
436	+	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
437		}});
438
439	<	t.start();
440	<	Thread.sleep(SMALL_DELAY_MS);
514	<	assertTrue(q.offer(new PDelay(0), SHORT_DELAY_MS, MILLISECONDS));
439	>	await(pleaseInterrupt);
440	>	assertThreadStaysAlive(t);
441		t.interrupt();
442	<	t.join();
442	>	awaitTermination(t);
443	>	checkEmpty(q);
444		}
445
519	–
446		/**
447		* peek returns next element, or null if empty
448		*/
449		public void testPeek() {
450		DelayQueue q = populatedQueue(SIZE);
451		for (int i = 0; i < SIZE; ++i) {
452	<	assertEquals(new PDelay(i), ((PDelay)q.peek()));
453	<	q.poll();
452	>	assertEquals(new PDelay(i), q.peek());
453	>	assertEquals(new PDelay(i), q.poll());
454		if (q.isEmpty())
455		assertNull(q.peek());
456		else
457	<	assertTrue(i != ((PDelay)q.peek()).intValue());
457	>	assertFalse(new PDelay(i).equals(q.peek()));
458		}
459		assertNull(q.peek());
460		}
#	Line 539 | Line 465 | public class DelayQueueTest extends JSR1
465		public void testElement() {
466		DelayQueue q = populatedQueue(SIZE);
467		for (int i = 0; i < SIZE; ++i) {
468	<	assertEquals(new PDelay(i), ((PDelay)q.element()));
468	>	assertEquals(new PDelay(i), q.element());
469		q.poll();
470		}
471		try {
#	Line 554 | Line 480 | public class DelayQueueTest extends JSR1
480		public void testRemove() {
481		DelayQueue q = populatedQueue(SIZE);
482		for (int i = 0; i < SIZE; ++i) {
483	<	assertEquals(new PDelay(i), ((PDelay)q.remove()));
483	>	assertEquals(new PDelay(i), q.remove());
484		}
485		try {
486		q.remove();
#	Line 563 | Line 489 | public class DelayQueueTest extends JSR1
489		}
490
491		/**
566	–	* remove(x) removes x and returns true if present
567	–	*/
568	–	public void testRemoveElement() {
569	–	DelayQueue q = populatedQueue(SIZE);
570	–	for (int i = 1; i < SIZE; i+=2) {
571	–	assertTrue(q.remove(new PDelay(i)));
572	–	}
573	–	for (int i = 0; i < SIZE; i+=2) {
574	–	assertTrue(q.remove(new PDelay(i)));
575	–	assertFalse(q.remove(new PDelay(i+1)));
576	–	}
577	–	assertTrue(q.isEmpty());
578	–	}
579	–
580	–	/**
492		* contains(x) reports true when elements added but not yet removed
493		*/
494		public void testContains() {
#	Line 597 | Line 508 | public class DelayQueueTest extends JSR1
508		q.clear();
509		assertTrue(q.isEmpty());
510		assertEquals(0, q.size());
511	<	assertEquals(NOCAP, q.remainingCapacity());
511	>	assertEquals(Integer.MAX_VALUE, q.remainingCapacity());
512		PDelay x = new PDelay(1);
513		q.add(x);
514		assertFalse(q.isEmpty());
#	Line 634 | Line 545 | public class DelayQueueTest extends JSR1
545		assertTrue(changed);
546
547		assertTrue(q.containsAll(p));
548	<	assertEquals(SIZE-i, q.size());
548	>	assertEquals(SIZE - i, q.size());
549		p.remove();
550		}
551		}
#	Line 647 | Line 558 | public class DelayQueueTest extends JSR1
558		DelayQueue q = populatedQueue(SIZE);
559		DelayQueue p = populatedQueue(i);
560		assertTrue(q.removeAll(p));
561	<	assertEquals(SIZE-i, q.size());
561	>	assertEquals(SIZE - i, q.size());
562		for (int j = 0; j < i; ++j) {
563	<	PDelay I = (PDelay)(p.remove());
564	<	assertFalse(q.contains(I));
563	>	PDelay x = (PDelay)(p.remove());
564	>	assertFalse(q.contains(x));
565		}
566		}
567		}
#	Line 663 | Line 574 | public class DelayQueueTest extends JSR1
574		Object[] o = q.toArray();
575		Arrays.sort(o);
576		for (int i = 0; i < o.length; i++)
577	<	assertEquals(o[i], q.take());
577	>	assertSame(o[i], q.take());
578		}
579
580		/**
581		* toArray(a) contains all elements
582		*/
583	<	public void testToArray2() throws InterruptedException {
584	<	DelayQueue q = populatedQueue(SIZE);
583	>	public void testToArray2() {
584	>	DelayQueue<PDelay> q = populatedQueue(SIZE);
585		PDelay[] ints = new PDelay[SIZE];
586	<	ints = (PDelay[])q.toArray(ints);
586	>	PDelay[] array = q.toArray(ints);
587	>	assertSame(ints, array);
588		Arrays.sort(ints);
589		for (int i = 0; i < ints.length; i++)
590	<	assertEquals(ints[i], q.take());
590	>	assertSame(ints[i], q.remove());
591		}
592
681	–
593		/**
594	<	* toArray(null) throws NPE
684	<	*/
685	<	public void testToArray_BadArg() {
686	<	try {
687	<	DelayQueue q = populatedQueue(SIZE);
688	<	Object o[] = q.toArray(null);
689	<	shouldThrow();
690	<	} catch (NullPointerException success) {}
691	<	}
692	<
693	<	/**
694	<	* toArray with incompatible array type throws CCE
594	>	* toArray(incompatible array type) throws ArrayStoreException
595		*/
596		public void testToArray1_BadArg() {
597	+	DelayQueue q = populatedQueue(SIZE);
598		try {
599	<	DelayQueue q = populatedQueue(SIZE);
699	<	Object o[] = q.toArray(new String[10] );
599	>	q.toArray(new String[10]);
600		shouldThrow();
601		} catch (ArrayStoreException success) {}
602		}
#	Line 713 | Line 613 | public class DelayQueueTest extends JSR1
613		++i;
614		}
615		assertEquals(i, SIZE);
616	+	assertIteratorExhausted(it);
617	+	}
618	+
619	+	/**
620	+	* iterator of empty collection has no elements
621	+	*/
622	+	public void testEmptyIterator() {
623	+	assertIteratorExhausted(new DelayQueue().iterator());
624		}
625
626		/**
627		* iterator.remove removes current element
628		*/
629	<	public void testIteratorRemove () {
629	>	public void testIteratorRemove() {
630		final DelayQueue q = new DelayQueue();
631		q.add(new PDelay(2));
632		q.add(new PDelay(1));
#	Line 727 | Line 635 | public class DelayQueueTest extends JSR1
635		it.next();
636		it.remove();
637		it = q.iterator();
638	<	assertEquals(it.next(), new PDelay(2));
639	<	assertEquals(it.next(), new PDelay(3));
638	>	assertEquals(new PDelay(2), it.next());
639	>	assertEquals(new PDelay(3), it.next());
640		assertFalse(it.hasNext());
641		}
642
735	–
643		/**
644		* toString contains toStrings of elements
645		*/
646		public void testToString() {
647		DelayQueue q = populatedQueue(SIZE);
648		String s = q.toString();
649	<	for (int i = 0; i < SIZE; ++i) {
650	<	assertTrue(s.indexOf(String.valueOf(Integer.MIN_VALUE+i)) >= 0);
744	<	}
649	>	for (Object e : q)
650	>	assertTrue(s.contains(e.toString()));
651		}
652
653		/**
654	<	* offer transfers elements across Executor tasks
654	>	* timed poll transfers elements across Executor tasks
655		*/
656		public void testPollInExecutor() {
657		final DelayQueue q = new DelayQueue();
658	<	ExecutorService executor = Executors.newFixedThreadPool(2);
659	<	executor.execute(new CheckedRunnable() {
660	<	public void realRun() throws InterruptedException {
661	<	threadAssertNull(q.poll());
662	<	threadAssertTrue(null != q.poll(MEDIUM_DELAY_MS, MILLISECONDS));
663	<	threadAssertTrue(q.isEmpty());
664	<	}});
665	<
666	<	executor.execute(new CheckedRunnable() {
667	<	public void realRun() throws InterruptedException {
668	<	Thread.sleep(SHORT_DELAY_MS);
669	<	q.put(new PDelay(1));
670	<	}});
671	<
672	<	joinPool(executor);
673	<
658	>	final CheckedBarrier threadsStarted = new CheckedBarrier(2);
659	>	final ExecutorService executor = Executors.newFixedThreadPool(2);
660	>	try (PoolCleaner cleaner = cleaner(executor)) {
661	>	executor.execute(new CheckedRunnable() {
662	>	public void realRun() throws InterruptedException {
663	>	assertNull(q.poll());
664	>	threadsStarted.await();
665	>	assertNotNull(q.poll(LONG_DELAY_MS, MILLISECONDS));
666	>	checkEmpty(q);
667	>	}});
668	>
669	>	executor.execute(new CheckedRunnable() {
670	>	public void realRun() throws InterruptedException {
671	>	threadsStarted.await();
672	>	q.put(new PDelay(1));
673	>	}});
674	>	}
675		}
676
770	–
677		/**
678		* Delayed actions do not occur until their delay elapses
679		*/
680		public void testDelay() throws InterruptedException {
681	<	DelayQueue q = new DelayQueue();
682	<	NanoDelay[] elements = new NanoDelay[SIZE];
683	<	for (int i = 0; i < SIZE; ++i) {
778	<	elements[i] = new NanoDelay(1000000000L + 1000000L * (SIZE - i));
779	<	}
780	<	for (int i = 0; i < SIZE; ++i) {
781	<	q.add(elements[i]);
782	<	}
681	>	DelayQueue<NanoDelay> q = new DelayQueue<NanoDelay>();
682	>	for (int i = 0; i < SIZE; ++i)
683	>	q.add(new NanoDelay(1000000L * (SIZE - i)));
684
685		long last = 0;
686		for (int i = 0; i < SIZE; ++i) {
687	<	NanoDelay e = (NanoDelay)(q.take());
687	>	NanoDelay e = q.take();
688		long tt = e.getTriggerTime();
689	<	assertTrue(tt <= System.nanoTime());
689	>	assertTrue(System.nanoTime() - tt >= 0);
690		if (i != 0)
691		assertTrue(tt >= last);
692		last = tt;
693		}
694	+	assertTrue(q.isEmpty());
695		}
696
697		/**
#	Line 798 | Line 700 | public class DelayQueueTest extends JSR1
700		public void testPeekDelayed() {
701		DelayQueue q = new DelayQueue();
702		q.add(new NanoDelay(Long.MAX_VALUE));
703	<	assert(q.peek() != null);
703	>	assertNotNull(q.peek());
704		}
705
804	–
706		/**
707		* poll of a non-empty queue returns null if no expired elements.
708		*/
#	Line 817 | Line 718 | public class DelayQueueTest extends JSR1
718		public void testTimedPollDelayed() throws InterruptedException {
719		DelayQueue q = new DelayQueue();
720		q.add(new NanoDelay(LONG_DELAY_MS * 1000000L));
721	<	assertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS));
821	<	}
822	<
823	<	/**
824	<	* drainTo(null) throws NPE
825	<	*/
826	<	public void testDrainToNull() {
827	<	DelayQueue q = populatedQueue(SIZE);
828	<	try {
829	<	q.drainTo(null);
830	<	shouldThrow();
831	<	} catch (NullPointerException success) {}
832	<	}
833	<
834	<	/**
835	<	* drainTo(this) throws IAE
836	<	*/
837	<	public void testDrainToSelf() {
838	<	DelayQueue q = populatedQueue(SIZE);
839	<	try {
840	<	q.drainTo(q);
841	<	shouldThrow();
842	<	} catch (IllegalArgumentException success) {}
721	>	assertNull(q.poll(timeoutMillis(), MILLISECONDS));
722		}
723
724		/**
#	Line 854 | Line 733 | public class DelayQueueTest extends JSR1
733		}
734		ArrayList l = new ArrayList();
735		q.drainTo(l);
736	<	assertEquals(q.size(), 0);
736	>	assertEquals(0, q.size());
737		for (int i = 0; i < SIZE; ++i)
738	<	assertEquals(l.get(i), elems[i]);
738	>	assertEquals(elems[i], l.get(i));
739		q.add(elems[0]);
740		q.add(elems[1]);
741		assertFalse(q.isEmpty());
#	Line 864 | Line 743 | public class DelayQueueTest extends JSR1
743		assertTrue(q.contains(elems[1]));
744		l.clear();
745		q.drainTo(l);
746	<	assertEquals(q.size(), 0);
747	<	assertEquals(l.size(), 2);
746	>	assertEquals(0, q.size());
747	>	assertEquals(2, l.size());
748		for (int i = 0; i < 2; ++i)
749	<	assertEquals(l.get(i), elems[i]);
749	>	assertEquals(elems[i], l.get(i));
750		}
751
752		/**
#	Line 877 | Line 756 | public class DelayQueueTest extends JSR1
756		final DelayQueue q = populatedQueue(SIZE);
757		Thread t = new Thread(new CheckedRunnable() {
758		public void realRun() {
759	<	q.put(new PDelay(SIZE+1));
759	>	q.put(new PDelay(SIZE + 1));
760		}});
761
762		t.start();
#	Line 889 | Line 768 | public class DelayQueueTest extends JSR1
768		}
769
770		/**
771	<	* drainTo(null, n) throws NPE
893	<	*/
894	<	public void testDrainToNullN() {
895	<	DelayQueue q = populatedQueue(SIZE);
896	<	try {
897	<	q.drainTo(null, 0);
898	<	shouldThrow();
899	<	} catch (NullPointerException success) {}
900	<	}
901	<
902	<	/**
903	<	* drainTo(this, n) throws IAE
904	<	*/
905	<	public void testDrainToSelfN() {
906	<	DelayQueue q = populatedQueue(SIZE);
907	<	try {
908	<	q.drainTo(q, 0);
909	<	shouldThrow();
910	<	} catch (IllegalArgumentException success) {}
911	<	}
912	<
913	<	/**
914	<	* drainTo(c, n) empties first max {n, size} elements of queue into c
771	>	* drainTo(c, n) empties first min(n, size) elements of queue into c
772		*/
773		public void testDrainToN() {
774		for (int i = 0; i < SIZE + 2; ++i) {
775		DelayQueue q = populatedQueue(SIZE);
776		ArrayList l = new ArrayList();
777		q.drainTo(l, i);
778	<	int k = (i < SIZE)? i : SIZE;
779	<	assertEquals(q.size(), SIZE-k);
780	<	assertEquals(l.size(), k);
778	>	int k = (i < SIZE) ? i : SIZE;
779	>	assertEquals(SIZE - k, q.size());
780	>	assertEquals(k, l.size());
781		}
782		}
783
784	<
784	>	/**
785	>	* remove(null), contains(null) always return false
786	>	*/
787	>	public void testNeverContainsNull() {
788	>	Collection<?> q = populatedQueue(SIZE);
789	>	assertFalse(q.contains(null));
790	>	assertFalse(q.remove(null));
791	>	}
792		}

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