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

Comparing jsr166/src/test/tck/DelayQueueTest.java (file contents):
Revision 1.50 by jsr166, Fri May 27 20:07:24 2011 UTC vs.
Revision 1.70 by jsr166, Sat Feb 28 19:59:23 2015 UTC

#	Line 6 | Line 6
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());
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
#	Line 29 | Line 50 | public class DelayQueueTest extends JSR1
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 = 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		return compareTo((PDelay)y);
61		}
44	–
62		public boolean equals(Object other) {
63	<	return equals((PDelay)other);
64	<	}
48	<	public boolean equals(PDelay other) {
49	<	return other.pseudodelay == pseudodelay;
63	>	return (other instanceof PDelay) &&
64	>	this.pseudodelay == ((PDelay)other).pseudodelay;
65		}
66	<
66	>	// suppress [overrides] javac warning
67	>	public int hashCode() { return pseudodelay; }
68		public long getDelay(TimeUnit ignore) {
69	<	return pseudodelay;
54	<	}
55	<	public int intValue() {
56	<	return pseudodelay;
69	>	return Integer.MIN_VALUE + pseudodelay;
70		}
58	–
71		public String toString() {
72		return String.valueOf(pseudodelay);
73		}
#	Line 88 | Line 100 | public class DelayQueueTest extends JSR1
100		return other.trigger == trigger;
101		}
102
103	+	// suppress [overrides] javac warning
104	+	public int hashCode() { return (int) trigger; }
105	+
106		public long getDelay(TimeUnit unit) {
107		long n = trigger - System.nanoTime();
108		return unit.convert(n, TimeUnit.NANOSECONDS);
#	Line 103 | Line 118 | public class DelayQueueTest extends JSR1
118		}
119
120		/**
121	<	* Create a queue of given size containing consecutive
121	>	* Returns a new queue of given size containing consecutive
122		* PDelays 0 ... n.
123		*/
124		private DelayQueue<PDelay> populatedQueue(int n) {
125		DelayQueue<PDelay> q = new DelayQueue<PDelay>();
126		assertTrue(q.isEmpty());
127	<	for (int i = n-1; i >= 0; i-=2)
127	>	for (int i = n-1; i >= 0; i -= 2)
128		assertTrue(q.offer(new PDelay(i)));
129	<	for (int i = (n & 1); i < n; i+=2)
129	>	for (int i = (n & 1); i < n; i += 2)
130		assertTrue(q.offer(new PDelay(i)));
131		assertFalse(q.isEmpty());
132	<	assertEquals(NOCAP, q.remainingCapacity());
132	>	assertEquals(Integer.MAX_VALUE, q.remainingCapacity());
133		assertEquals(n, q.size());
134		return q;
135		}
#	Line 123 | Line 138 | public class DelayQueueTest extends JSR1
138		* A new queue has unbounded capacity
139		*/
140		public void testConstructor1() {
141	<	assertEquals(NOCAP, new DelayQueue().remainingCapacity());
141	>	assertEquals(Integer.MAX_VALUE, new DelayQueue().remainingCapacity());
142		}
143
144		/**
#	Line 131 | Line 146 | public class DelayQueueTest extends JSR1
146		*/
147		public void testConstructor3() {
148		try {
149	<	DelayQueue q = new DelayQueue(null);
149	>	new DelayQueue(null);
150		shouldThrow();
151		} catch (NullPointerException success) {}
152		}
#	Line 142 | Line 157 | public class DelayQueueTest extends JSR1
157		public void testConstructor4() {
158		try {
159		PDelay[] ints = new PDelay[SIZE];
160	<	DelayQueue q = new DelayQueue(Arrays.asList(ints));
160	>	new DelayQueue(Arrays.asList(ints));
161		shouldThrow();
162		} catch (NullPointerException success) {}
163		}
#	Line 155 | Line 170 | public class DelayQueueTest extends JSR1
170		PDelay[] ints = new PDelay[SIZE];
171		for (int i = 0; i < SIZE-1; ++i)
172		ints[i] = new PDelay(i);
173	<	DelayQueue q = new DelayQueue(Arrays.asList(ints));
173	>	new DelayQueue(Arrays.asList(ints));
174		shouldThrow();
175		} catch (NullPointerException success) {}
176		}
#	Line 178 | Line 193 | public class DelayQueueTest extends JSR1
193		public void testEmpty() {
194		DelayQueue q = new DelayQueue();
195		assertTrue(q.isEmpty());
196	<	assertEquals(NOCAP, q.remainingCapacity());
196	>	assertEquals(Integer.MAX_VALUE, q.remainingCapacity());
197		q.add(new PDelay(1));
198		assertFalse(q.isEmpty());
199		q.add(new PDelay(2));
#	Line 188 | Line 203 | public class DelayQueueTest extends JSR1
203		}
204
205		/**
206	<	* remainingCapacity does not change when elements added or removed,
192	<	* but size does
206	>	* remainingCapacity() always returns Integer.MAX_VALUE
207		*/
208		public void testRemainingCapacity() {
209	<	DelayQueue q = populatedQueue(SIZE);
209	>	BlockingQueue q = populatedQueue(SIZE);
210		for (int i = 0; i < SIZE; ++i) {
211	<	assertEquals(NOCAP, q.remainingCapacity());
211	>	assertEquals(Integer.MAX_VALUE, q.remainingCapacity());
212		assertEquals(SIZE-i, q.size());
213	<	q.remove();
213	>	assertTrue(q.remove() instanceof PDelay);
214		}
215		for (int i = 0; i < SIZE; ++i) {
216	<	assertEquals(NOCAP, q.remainingCapacity());
216	>	assertEquals(Integer.MAX_VALUE, q.remainingCapacity());
217		assertEquals(i, q.size());
218	<	q.add(new PDelay(i));
218	>	assertTrue(q.add(new PDelay(i)));
219		}
220		}
221
222		/**
209	–	* offer(null) throws NPE
210	–	*/
211	–	public void testOfferNull() {
212	–	try {
213	–	DelayQueue q = new DelayQueue();
214	–	q.offer(null);
215	–	shouldThrow();
216	–	} catch (NullPointerException success) {}
217	–	}
218	–
219	–	/**
220	–	* add(null) throws NPE
221	–	*/
222	–	public void testAddNull() {
223	–	try {
224	–	DelayQueue q = new DelayQueue();
225	–	q.add(null);
226	–	shouldThrow();
227	–	} catch (NullPointerException success) {}
228	–	}
229	–
230	–	/**
223		* offer non-null succeeds
224		*/
225		public void testOffer() {
#	Line 248 | Line 240 | public class DelayQueueTest extends JSR1
240		}
241
242		/**
251	–	* addAll(null) throws NPE
252	–	*/
253	–	public void testAddAll1() {
254	–	try {
255	–	DelayQueue q = new DelayQueue();
256	–	q.addAll(null);
257	–	shouldThrow();
258	–	} catch (NullPointerException success) {}
259	–	}
260	–
261	–	/**
243		* addAll(this) throws IAE
244		*/
245		public void testAddAllSelf() {
#	Line 270 | Line 251 | public class DelayQueueTest extends JSR1
251		}
252
253		/**
273	–	* addAll of a collection with null elements throws NPE
274	–	*/
275	–	public void testAddAll2() {
276	–	try {
277	–	DelayQueue q = new DelayQueue();
278	–	PDelay[] ints = new PDelay[SIZE];
279	–	q.addAll(Arrays.asList(ints));
280	–	shouldThrow();
281	–	} catch (NullPointerException success) {}
282	–	}
283	–
284	–	/**
254		* addAll of a collection with any null elements throws NPE after
255		* possibly adding some elements
256		*/
#	Line 312 | Line 281 | public class DelayQueueTest extends JSR1
281		}
282
283		/**
315	–	* put(null) throws NPE
316	–	*/
317	–	public void testPutNull() {
318	–	try {
319	–	DelayQueue q = new DelayQueue();
320	–	q.put(null);
321	–	shouldThrow();
322	–	} catch (NullPointerException success) {}
323	–	}
324	–
325	–	/**
284		* all elements successfully put are contained
285		*/
286		public void testPut() {
287		DelayQueue q = new DelayQueue();
288		for (int i = 0; i < SIZE; ++i) {
289	<	PDelay I = new PDelay(i);
290	<	q.put(I);
291	<	assertTrue(q.contains(I));
289	>	PDelay x = new PDelay(i);
290	>	q.put(x);
291	>	assertTrue(q.contains(x));
292		}
293		assertEquals(SIZE, q.size());
294		}
#	Line 374 | Line 332 | public class DelayQueueTest extends JSR1
332		public void testTake() throws InterruptedException {
333		DelayQueue q = populatedQueue(SIZE);
334		for (int i = 0; i < SIZE; ++i) {
335	<	assertEquals(new PDelay(i), ((PDelay)q.take()));
335	>	assertEquals(new PDelay(i), q.take());
336		}
337		}
338
339		/**
382	–	* take blocks interruptibly when empty
383	–	*/
384	–	public void testTakeFromEmptyBlocksInterruptibly()
385	–	throws InterruptedException {
386	–	final BlockingQueue q = new DelayQueue();
387	–	final CountDownLatch threadStarted = new CountDownLatch(1);
388	–	Thread t = newStartedThread(new CheckedRunnable() {
389	–	public void realRun() {
390	–	threadStarted.countDown();
391	–	try {
392	–	q.take();
393	–	shouldThrow();
394	–	} catch (InterruptedException success) {}
395	–	assertFalse(Thread.interrupted());
396	–	}});
397	–
398	–	await(threadStarted);
399	–	assertThreadStaysAlive(t);
400	–	t.interrupt();
401	–	awaitTermination(t);
402	–	}
403	–
404	–	/**
340		* Take removes existing elements until empty, then blocks interruptibly
341		*/
342		public void testBlockingTake() throws InterruptedException {
#	Line 440 | Line 375 | public class DelayQueueTest extends JSR1
375		public void testPoll() {
376		DelayQueue q = populatedQueue(SIZE);
377		for (int i = 0; i < SIZE; ++i) {
378	<	assertEquals(new PDelay(i), ((PDelay)q.poll()));
378	>	assertEquals(new PDelay(i), q.poll());
379		}
380		assertNull(q.poll());
381		}
#	Line 451 | Line 386 | public class DelayQueueTest extends JSR1
386		public void testTimedPoll0() throws InterruptedException {
387		DelayQueue q = populatedQueue(SIZE);
388		for (int i = 0; i < SIZE; ++i) {
389	<	assertEquals(new PDelay(i), ((PDelay)q.poll(0, MILLISECONDS)));
389	>	assertEquals(new PDelay(i), q.poll(0, MILLISECONDS));
390		}
391		assertNull(q.poll(0, MILLISECONDS));
392		}
#	Line 462 | Line 397 | public class DelayQueueTest extends JSR1
397		public void testTimedPoll() throws InterruptedException {
398		DelayQueue q = populatedQueue(SIZE);
399		for (int i = 0; i < SIZE; ++i) {
400	<	assertEquals(new PDelay(i), ((PDelay)q.poll(SHORT_DELAY_MS, MILLISECONDS)));
400	>	long startTime = System.nanoTime();
401	>	assertEquals(new PDelay(i), q.poll(LONG_DELAY_MS, MILLISECONDS));
402	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
403		}
404	<	assertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS));
404	>	long startTime = System.nanoTime();
405	>	assertNull(q.poll(timeoutMillis(), MILLISECONDS));
406	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
407	>	checkEmpty(q);
408		}
409
410		/**
#	Line 502 | Line 442 | public class DelayQueueTest extends JSR1
442		}
443
444		/**
505	–	* timed poll before a delayed offer fails; after offer succeeds;
506	–	* on interruption throws
507	–	*/
508	–	public void testTimedPollWithOffer() throws InterruptedException {
509	–	final DelayQueue q = new DelayQueue();
510	–	final PDelay pdelay = new PDelay(0);
511	–	final CheckedBarrier barrier = new CheckedBarrier(2);
512	–	Thread t = newStartedThread(new CheckedRunnable() {
513	–	public void realRun() throws InterruptedException {
514	–	assertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS));
515	–
516	–	barrier.await();
517	–	assertSame(pdelay, q.poll(LONG_DELAY_MS, MILLISECONDS));
518	–
519	–	Thread.currentThread().interrupt();
520	–	try {
521	–	q.poll(LONG_DELAY_MS, MILLISECONDS);
522	–	shouldThrow();
523	–	} catch (InterruptedException success) {}
524	–	assertFalse(Thread.interrupted());
525	–
526	–	barrier.await();
527	–	try {
528	–	q.poll(LONG_DELAY_MS, MILLISECONDS);
529	–	shouldThrow();
530	–	} catch (InterruptedException success) {}
531	–	assertFalse(Thread.interrupted());
532	–	}});
533	–
534	–	barrier.await();
535	–	long startTime = System.nanoTime();
536	–	assertTrue(q.offer(pdelay, LONG_DELAY_MS, MILLISECONDS));
537	–	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
538	–
539	–	barrier.await();
540	–	assertThreadStaysAlive(t);
541	–	t.interrupt();
542	–	awaitTermination(t);
543	–	}
544	–
545	–	/**
445		* peek returns next element, or null if empty
446		*/
447		public void testPeek() {
448		DelayQueue q = populatedQueue(SIZE);
449		for (int i = 0; i < SIZE; ++i) {
450	<	assertEquals(new PDelay(i), ((PDelay)q.peek()));
451	<	assertEquals(new PDelay(i), ((PDelay)q.poll()));
450	>	assertEquals(new PDelay(i), q.peek());
451	>	assertEquals(new PDelay(i), q.poll());
452		if (q.isEmpty())
453		assertNull(q.peek());
454		else
#	Line 564 | Line 463 | public class DelayQueueTest extends JSR1
463		public void testElement() {
464		DelayQueue q = populatedQueue(SIZE);
465		for (int i = 0; i < SIZE; ++i) {
466	<	assertEquals(new PDelay(i), ((PDelay)q.element()));
466	>	assertEquals(new PDelay(i), q.element());
467		q.poll();
468		}
469		try {
#	Line 579 | Line 478 | public class DelayQueueTest extends JSR1
478		public void testRemove() {
479		DelayQueue q = populatedQueue(SIZE);
480		for (int i = 0; i < SIZE; ++i) {
481	<	assertEquals(new PDelay(i), ((PDelay)q.remove()));
481	>	assertEquals(new PDelay(i), q.remove());
482		}
483		try {
484		q.remove();
#	Line 588 | Line 487 | public class DelayQueueTest extends JSR1
487		}
488
489		/**
591	–	* remove(x) removes x and returns true if present
592	–	*/
593	–	public void testRemoveElement() {
594	–	DelayQueue q = populatedQueue(SIZE);
595	–	for (int i = 1; i < SIZE; i+=2) {
596	–	assertTrue(q.remove(new PDelay(i)));
597	–	}
598	–	for (int i = 0; i < SIZE; i+=2) {
599	–	assertTrue(q.remove(new PDelay(i)));
600	–	assertFalse(q.remove(new PDelay(i+1)));
601	–	}
602	–	assertTrue(q.isEmpty());
603	–	}
604	–
605	–	/**
490		* contains(x) reports true when elements added but not yet removed
491		*/
492		public void testContains() {
#	Line 622 | Line 506 | public class DelayQueueTest extends JSR1
506		q.clear();
507		assertTrue(q.isEmpty());
508		assertEquals(0, q.size());
509	<	assertEquals(NOCAP, q.remainingCapacity());
509	>	assertEquals(Integer.MAX_VALUE, q.remainingCapacity());
510		PDelay x = new PDelay(1);
511		q.add(x);
512		assertFalse(q.isEmpty());
#	Line 674 | Line 558 | public class DelayQueueTest extends JSR1
558		assertTrue(q.removeAll(p));
559		assertEquals(SIZE-i, q.size());
560		for (int j = 0; j < i; ++j) {
561	<	PDelay I = (PDelay)(p.remove());
562	<	assertFalse(q.contains(I));
561	>	PDelay x = (PDelay)(p.remove());
562	>	assertFalse(q.contains(x));
563		}
564		}
565		}
#	Line 705 | Line 589 | public class DelayQueueTest extends JSR1
589		}
590
591		/**
708	–	* toArray(null) throws NullPointerException
709	–	*/
710	–	public void testToArray_NullArg() {
711	–	DelayQueue q = populatedQueue(SIZE);
712	–	try {
713	–	q.toArray(null);
714	–	shouldThrow();
715	–	} catch (NullPointerException success) {}
716	–	}
717	–
718	–	/**
592		* toArray(incompatible array type) throws ArrayStoreException
593		*/
594		public void testToArray1_BadArg() {
#	Line 738 | Line 611 | public class DelayQueueTest extends JSR1
611		++i;
612		}
613		assertEquals(i, SIZE);
614	+	assertIteratorExhausted(it);
615	+	}
616	+
617	+	/**
618	+	* iterator of empty collection has no elements
619	+	*/
620	+	public void testEmptyIterator() {
621	+	assertIteratorExhausted(new DelayQueue().iterator());
622		}
623
624		/**
#	Line 752 | Line 633 | public class DelayQueueTest extends JSR1
633		it.next();
634		it.remove();
635		it = q.iterator();
636	<	assertEquals(it.next(), new PDelay(2));
637	<	assertEquals(it.next(), new PDelay(3));
636	>	assertEquals(new PDelay(2), it.next());
637	>	assertEquals(new PDelay(3), it.next());
638		assertFalse(it.hasNext());
639		}
640
#	Line 763 | Line 644 | public class DelayQueueTest extends JSR1
644		public void testToString() {
645		DelayQueue q = populatedQueue(SIZE);
646		String s = q.toString();
647	<	for (int i = 0; i < SIZE; ++i) {
648	<	assertTrue(s.contains(String.valueOf(Integer.MIN_VALUE+i)));
768	<	}
647	>	for (Object e : q)
648	>	assertTrue(s.contains(e.toString()));
649		}
650
651		/**
#	Line 779 | Line 659 | public class DelayQueueTest extends JSR1
659		public void realRun() throws InterruptedException {
660		assertNull(q.poll());
661		threadsStarted.await();
662	<	assertTrue(null != q.poll(LONG_DELAY_MS, MILLISECONDS));
662	>	assertNotNull(q.poll(LONG_DELAY_MS, MILLISECONDS));
663		checkEmpty(q);
664		}});
665
#	Line 836 | Line 716 | public class DelayQueueTest extends JSR1
716		public void testTimedPollDelayed() throws InterruptedException {
717		DelayQueue q = new DelayQueue();
718		q.add(new NanoDelay(LONG_DELAY_MS * 1000000L));
719	<	assertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS));
840	<	}
841	<
842	<	/**
843	<	* drainTo(null) throws NPE
844	<	*/
845	<	public void testDrainToNull() {
846	<	DelayQueue q = populatedQueue(SIZE);
847	<	try {
848	<	q.drainTo(null);
849	<	shouldThrow();
850	<	} catch (NullPointerException success) {}
851	<	}
852	<
853	<	/**
854	<	* drainTo(this) throws IAE
855	<	*/
856	<	public void testDrainToSelf() {
857	<	DelayQueue q = populatedQueue(SIZE);
858	<	try {
859	<	q.drainTo(q);
860	<	shouldThrow();
861	<	} catch (IllegalArgumentException success) {}
719	>	assertNull(q.poll(timeoutMillis(), MILLISECONDS));
720		}
721
722		/**
#	Line 873 | Line 731 | public class DelayQueueTest extends JSR1
731		}
732		ArrayList l = new ArrayList();
733		q.drainTo(l);
734	<	assertEquals(q.size(), 0);
734	>	assertEquals(0, q.size());
735		for (int i = 0; i < SIZE; ++i)
736	<	assertEquals(l.get(i), elems[i]);
736	>	assertEquals(elems[i], l.get(i));
737		q.add(elems[0]);
738		q.add(elems[1]);
739		assertFalse(q.isEmpty());
#	Line 883 | Line 741 | public class DelayQueueTest extends JSR1
741		assertTrue(q.contains(elems[1]));
742		l.clear();
743		q.drainTo(l);
744	<	assertEquals(q.size(), 0);
745	<	assertEquals(l.size(), 2);
744	>	assertEquals(0, q.size());
745	>	assertEquals(2, l.size());
746		for (int i = 0; i < 2; ++i)
747	<	assertEquals(l.get(i), elems[i]);
747	>	assertEquals(elems[i], l.get(i));
748		}
749
750		/**
#	Line 908 | Line 766 | public class DelayQueueTest extends JSR1
766		}
767
768		/**
911	–	* drainTo(null, n) throws NPE
912	–	*/
913	–	public void testDrainToNullN() {
914	–	DelayQueue q = populatedQueue(SIZE);
915	–	try {
916	–	q.drainTo(null, 0);
917	–	shouldThrow();
918	–	} catch (NullPointerException success) {}
919	–	}
920	–
921	–	/**
922	–	* drainTo(this, n) throws IAE
923	–	*/
924	–	public void testDrainToSelfN() {
925	–	DelayQueue q = populatedQueue(SIZE);
926	–	try {
927	–	q.drainTo(q, 0);
928	–	shouldThrow();
929	–	} catch (IllegalArgumentException success) {}
930	–	}
931	–
932	–	/**
769		* drainTo(c, n) empties first min(n, size) elements of queue into c
770		*/
771		public void testDrainToN() {
#	Line 938 | Line 774 | public class DelayQueueTest extends JSR1
774		ArrayList l = new ArrayList();
775		q.drainTo(l, i);
776		int k = (i < SIZE) ? i : SIZE;
777	<	assertEquals(q.size(), SIZE-k);
778	<	assertEquals(l.size(), k);
777	>	assertEquals(SIZE-k, q.size());
778	>	assertEquals(k, l.size());
779		}
780		}
781
782	+	/**
783	+	* remove(null), contains(null) always return false
784	+	*/
785	+	public void testNeverContainsNull() {
786	+	Collection<?> q = populatedQueue(SIZE);
787	+	assertFalse(q.contains(null));
788	+	assertFalse(q.remove(null));
789	+	}
790		}

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