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Comparing jsr166/src/test/tck/LinkedBlockingDequeTest.java (file contents):
Revision 1.19 by jsr166, Tue Dec 1 06:03:49 2009 UTC vs.
Revision 1.52 by jsr166, Wed Dec 31 19:21:20 2014 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		*/
6
7	–	import junit.framework.*;
8	–	import java.util.*;
9	–	import java.util.concurrent.*;
7		import static java.util.concurrent.TimeUnit.MILLISECONDS;
8	<	import java.io.*;
8	>
9	>	import java.util.ArrayList;
10	>	import java.util.Arrays;
11	>	import java.util.Collection;
12	>	import java.util.Deque;
13	>	import java.util.Iterator;
14	>	import java.util.NoSuchElementException;
15	>	import java.util.Queue;
16	>	import java.util.concurrent.BlockingDeque;
17	>	import java.util.concurrent.BlockingQueue;
18	>	import java.util.concurrent.CountDownLatch;
19	>	import java.util.concurrent.Executors;
20	>	import java.util.concurrent.ExecutorService;
21	>	import java.util.concurrent.LinkedBlockingDeque;
22	>
23	>	import junit.framework.Test;
24
25		public class LinkedBlockingDequeTest extends JSR166TestCase {
26	+
27	+	public static class Unbounded extends BlockingQueueTest {
28	+	protected BlockingQueue emptyCollection() {
29	+	return new LinkedBlockingDeque();
30	+	}
31	+	}
32	+
33	+	public static class Bounded extends BlockingQueueTest {
34	+	protected BlockingQueue emptyCollection() {
35	+	return new LinkedBlockingDeque(SIZE);
36	+	}
37	+	}
38	+
39		public static void main(String[] args) {
40	<	junit.textui.TestRunner.run (suite());
40	>	junit.textui.TestRunner.run(suite());
41		}
42
43		public static Test suite() {
44	<	return new TestSuite(LinkedBlockingDequeTest.class);
44	>	return newTestSuite(LinkedBlockingDequeTest.class,
45	>	new Unbounded().testSuite(),
46	>	new Bounded().testSuite());
47		}
48
49		/**
50	<	* Create a deque of given size containing consecutive
50	>	* Returns a new deque of given size containing consecutive
51		* Integers 0 ... n.
52		*/
53	<	private LinkedBlockingDeque populatedDeque(int n) {
54	<	LinkedBlockingDeque q = new LinkedBlockingDeque(n);
53	>	private LinkedBlockingDeque<Integer> populatedDeque(int n) {
54	>	LinkedBlockingDeque<Integer> q =
55	>	new LinkedBlockingDeque<Integer>(n);
56		assertTrue(q.isEmpty());
57		for (int i = 0; i < n; i++)
58		assertTrue(q.offer(new Integer(i)));
#	Line 64 | Line 92 | public class LinkedBlockingDequeTest ext
92		}
93
94		/**
95	<	* offer(null) throws NPE
95	>	* offerFirst(null) throws NullPointerException
96		*/
97		public void testOfferFirstNull() {
98	+	LinkedBlockingDeque q = new LinkedBlockingDeque();
99		try {
71	–	LinkedBlockingDeque q = new LinkedBlockingDeque();
100		q.offerFirst(null);
101		shouldThrow();
102		} catch (NullPointerException success) {}
103		}
104
105		/**
106	+	* offerLast(null) throws NullPointerException
107	+	*/
108	+	public void testOfferLastNull() {
109	+	LinkedBlockingDeque q = new LinkedBlockingDeque();
110	+	try {
111	+	q.offerLast(null);
112	+	shouldThrow();
113	+	} catch (NullPointerException success) {}
114	+	}
115	+
116	+	/**
117		* OfferFirst succeeds
118		*/
119		public void testOfferFirst() {
#	Line 93 | Line 132 | public class LinkedBlockingDequeTest ext
132		}
133
134		/**
135	<	*  pollFirst succeeds unless empty
135	>	* pollFirst succeeds unless empty
136		*/
137		public void testPollFirst() {
138		LinkedBlockingDeque q = populatedDeque(SIZE);
#	Line 104 | Line 143 | public class LinkedBlockingDequeTest ext
143		}
144
145		/**
146	<	*  pollLast succeeds unless empty
146	>	* pollLast succeeds unless empty
147		*/
148		public void testPollLast() {
149		LinkedBlockingDeque q = populatedDeque(SIZE);
#	Line 115 | Line 154 | public class LinkedBlockingDequeTest ext
154		}
155
156		/**
157	<	*  peekFirst returns next element, or null if empty
157	>	* peekFirst returns next element, or null if empty
158		*/
159		public void testPeekFirst() {
160		LinkedBlockingDeque q = populatedDeque(SIZE);
#	Line 129 | Line 168 | public class LinkedBlockingDequeTest ext
168		}
169
170		/**
171	<	*  peek returns next element, or null if empty
171	>	* peek returns next element, or null if empty
172		*/
173		public void testPeek() {
174		LinkedBlockingDeque q = populatedDeque(SIZE);
#	Line 143 | Line 182 | public class LinkedBlockingDequeTest ext
182		}
183
184		/**
185	<	*  peekLast returns next element, or null if empty
185	>	* peekLast returns next element, or null if empty
186		*/
187		public void testPeekLast() {
188		LinkedBlockingDeque q = populatedDeque(SIZE);
#	Line 157 | Line 196 | public class LinkedBlockingDequeTest ext
196		}
197
198		/**
199	<	* getFirst returns next getFirst, or throws NSEE if empty
199	>	* getFirst() returns first element, or throws NSEE if empty
200		*/
201		public void testFirstElement() {
202		LinkedBlockingDeque q = populatedDeque(SIZE);
#	Line 173 | Line 212 | public class LinkedBlockingDequeTest ext
212		}
213
214		/**
215	<	*  getLast returns next element, or throws NSEE if empty
215	>	* getLast() returns last element, or throws NSEE if empty
216		*/
217		public void testLastElement() {
218		LinkedBlockingDeque q = populatedDeque(SIZE);
#	Line 189 | Line 228 | public class LinkedBlockingDequeTest ext
228		}
229
230		/**
231	<	*  removeFirst removes next element, or throws NSEE if empty
231	>	* removeFirst() removes first element, or throws NSEE if empty
232		*/
233		public void testRemoveFirst() {
234		LinkedBlockingDeque q = populatedDeque(SIZE);
#	Line 204 | Line 243 | public class LinkedBlockingDequeTest ext
243		}
244
245		/**
246	<	*  removeLast removes last element, or throws NSEE if empty
246	>	* removeLast() removes last element, or throws NSEE if empty
247		*/
248		public void testRemoveLast() {
249		LinkedBlockingDeque q = populatedDeque(SIZE);
#	Line 219 | Line 258 | public class LinkedBlockingDequeTest ext
258		}
259
260		/**
261	<	*  remove removes next element, or throws NSEE if empty
261	>	* remove removes next element, or throws NSEE if empty
262		*/
263		public void testRemove() {
264		LinkedBlockingDeque q = populatedDeque(SIZE);
#	Line 269 | Line 308 | public class LinkedBlockingDequeTest ext
308		LinkedBlockingDeque q = populatedDeque(3);
309		q.pollLast();
310		q.addFirst(four);
311	<	assertEquals(four,q.peekFirst());
311	>	assertSame(four, q.peekFirst());
312		}
313
314		/**
#	Line 279 | Line 318 | public class LinkedBlockingDequeTest ext
318		LinkedBlockingDeque q = populatedDeque(3);
319		q.pollLast();
320		q.addLast(four);
321	<	assertEquals(four,q.peekLast());
321	>	assertSame(four, q.peekLast());
322		}
323
285	–
324		/**
325		* A new deque has the indicated capacity, or Integer.MAX_VALUE if
326		* none given
#	Line 293 | Line 331 | public class LinkedBlockingDequeTest ext
331		}
332
333		/**
334	<	* Constructor throws IAE if capacity argument nonpositive
334	>	* Constructor throws IllegalArgumentException if capacity argument nonpositive
335		*/
336		public void testConstructor2() {
337		try {
338	<	LinkedBlockingDeque q = new LinkedBlockingDeque(0);
338	>	new LinkedBlockingDeque(0);
339		shouldThrow();
340		} catch (IllegalArgumentException success) {}
341		}
342
343		/**
344	<	* Initializing from null Collection throws NPE
344	>	* Initializing from null Collection throws NullPointerException
345		*/
346		public void testConstructor3() {
347		try {
348	<	LinkedBlockingDeque q = new LinkedBlockingDeque(null);
348	>	new LinkedBlockingDeque(null);
349		shouldThrow();
350		} catch (NullPointerException success) {}
351		}
352
353		/**
354	<	* Initializing from Collection of null elements throws NPE
354	>	* Initializing from Collection of null elements throws NullPointerException
355		*/
356		public void testConstructor4() {
357	+	Collection<Integer> elements = Arrays.asList(new Integer[SIZE]);
358		try {
359	<	Integer[] ints = new Integer[SIZE];
321	<	LinkedBlockingDeque q = new LinkedBlockingDeque(Arrays.asList(ints));
359	>	new LinkedBlockingDeque(elements);
360		shouldThrow();
361		} catch (NullPointerException success) {}
362		}
363
364		/**
365	<	* Initializing from Collection with some null elements throws NPE
365	>	* Initializing from Collection with some null elements throws
366	>	* NullPointerException
367		*/
368		public void testConstructor5() {
369	+	Integer[] ints = new Integer[SIZE];
370	+	for (int i = 0; i < SIZE-1; ++i)
371	+	ints[i] = i;
372	+	Collection<Integer> elements = Arrays.asList(ints);
373		try {
374	<	Integer[] ints = new Integer[SIZE];
332	<	for (int i = 0; i < SIZE-1; ++i)
333	<	ints[i] = new Integer(i);
334	<	LinkedBlockingDeque q = new LinkedBlockingDeque(Arrays.asList(ints));
374	>	new LinkedBlockingDeque(elements);
375		shouldThrow();
376		} catch (NullPointerException success) {}
377		}
#	Line 342 | Line 382 | public class LinkedBlockingDequeTest ext
382		public void testConstructor6() {
383		Integer[] ints = new Integer[SIZE];
384		for (int i = 0; i < SIZE; ++i)
385	<	ints[i] = new Integer(i);
385	>	ints[i] = i;
386		LinkedBlockingDeque q = new LinkedBlockingDeque(Arrays.asList(ints));
387		for (int i = 0; i < SIZE; ++i)
388		assertEquals(ints[i], q.poll());
#	Line 381 | Line 421 | public class LinkedBlockingDequeTest ext
421		}
422
423		/**
384	–	* offer(null) throws NPE
385	–	*/
386	–	public void testOfferNull() {
387	–	try {
388	–	LinkedBlockingDeque q = new LinkedBlockingDeque(1);
389	–	q.offer(null);
390	–	shouldThrow();
391	–	} catch (NullPointerException success) {}
392	–	}
393	–
394	–	/**
395	–	* add(null) throws NPE
396	–	*/
397	–	public void testAddNull() {
398	–	try {
399	–	LinkedBlockingDeque q = new LinkedBlockingDeque(1);
400	–	q.add(null);
401	–	shouldThrow();
402	–	} catch (NullPointerException success) {}
403	–	}
404	–
405	–	/**
424		* push(null) throws NPE
425		*/
426		public void testPushNull() {
#	Line 437 | Line 455 | public class LinkedBlockingDequeTest ext
455		LinkedBlockingDeque q = populatedDeque(3);
456		q.pollLast();
457		q.push(four);
458	<	assertEquals(four,q.peekFirst());
458	>	assertSame(four, q.peekFirst());
459		}
460
443	–
461		/**
462	<	*  pop removes next element, or throws NSEE if empty
462	>	* pop removes next element, or throws NSEE if empty
463		*/
464		public void testPop() {
465		LinkedBlockingDeque q = populatedDeque(SIZE);
#	Line 455 | Line 472 | public class LinkedBlockingDequeTest ext
472		} catch (NoSuchElementException success) {}
473		}
474
458	–
475		/**
476		* Offer succeeds if not full; fails if full
477		*/
#	Line 469 | Line 485 | public class LinkedBlockingDequeTest ext
485		* add succeeds if not full; throws ISE if full
486		*/
487		public void testAdd() {
488	+	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
489	+	for (int i = 0; i < SIZE; ++i)
490	+	assertTrue(q.add(new Integer(i)));
491	+	assertEquals(0, q.remainingCapacity());
492		try {
473	–	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
474	–	for (int i = 0; i < SIZE; ++i) {
475	–	assertTrue(q.add(new Integer(i)));
476	–	}
477	–	assertEquals(0, q.remainingCapacity());
493		q.add(new Integer(SIZE));
494		shouldThrow();
495		} catch (IllegalStateException success) {}
496		}
497
498		/**
484	–	* addAll(null) throws NPE
485	–	*/
486	–	public void testAddAll1() {
487	–	try {
488	–	LinkedBlockingDeque q = new LinkedBlockingDeque(1);
489	–	q.addAll(null);
490	–	shouldThrow();
491	–	} catch (NullPointerException success) {}
492	–	}
493	–
494	–	/**
499		* addAll(this) throws IAE
500		*/
501		public void testAddAllSelf() {
502	+	LinkedBlockingDeque q = populatedDeque(SIZE);
503		try {
499	–	LinkedBlockingDeque q = populatedDeque(SIZE);
504		q.addAll(q);
505		shouldThrow();
506		} catch (IllegalArgumentException success) {}
507		}
508
509		/**
506	–	* addAll of a collection with null elements throws NPE
507	–	*/
508	–	public void testAddAll2() {
509	–	try {
510	–	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
511	–	Integer[] ints = new Integer[SIZE];
512	–	q.addAll(Arrays.asList(ints));
513	–	shouldThrow();
514	–	} catch (NullPointerException success) {}
515	–	}
516	–	/**
510		* addAll of a collection with any null elements throws NPE after
511		* possibly adding some elements
512		*/
513		public void testAddAll3() {
514	+	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
515	+	Integer[] ints = new Integer[SIZE];
516	+	for (int i = 0; i < SIZE-1; ++i)
517	+	ints[i] = new Integer(i);
518	+	Collection<Integer> elements = Arrays.asList(ints);
519		try {
520	<	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
523	<	Integer[] ints = new Integer[SIZE];
524	<	for (int i = 0; i < SIZE-1; ++i)
525	<	ints[i] = new Integer(i);
526	<	q.addAll(Arrays.asList(ints));
520	>	q.addAll(elements);
521		shouldThrow();
522		} catch (NullPointerException success) {}
523		}
524	+
525		/**
526	<	* addAll throws ISE if not enough room
526	>	* addAll throws IllegalStateException if not enough room
527		*/
528		public void testAddAll4() {
529	+	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE - 1);
530	+	Integer[] ints = new Integer[SIZE];
531	+	for (int i = 0; i < SIZE; ++i)
532	+	ints[i] = new Integer(i);
533	+	Collection<Integer> elements = Arrays.asList(ints);
534		try {
535	<	LinkedBlockingDeque q = new LinkedBlockingDeque(1);
536	<	Integer[] ints = new Integer[SIZE];
537	<	for (int i = 0; i < SIZE; ++i)
538	<	ints[i] = new Integer(i);
539	<	q.addAll(Arrays.asList(ints));
535	>	q.addAll(elements);
536		shouldThrow();
537		} catch (IllegalStateException success) {}
538		}
#	Line 556 | Line 552 | public class LinkedBlockingDequeTest ext
552		assertEquals(ints[i], q.poll());
553		}
554
559	–
560	–	/**
561	–	* put(null) throws NPE
562	–	*/
563	–	public void testPutNull() throws InterruptedException {
564	–	try {
565	–	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
566	–	q.put(null);
567	–	shouldThrow();
568	–	} catch (NullPointerException success) {}
569	–	}
570	–
555		/**
556		* all elements successfully put are contained
557		*/
#	Line 586 | Line 570 | public class LinkedBlockingDequeTest ext
570		*/
571		public void testBlockingPut() throws InterruptedException {
572		final LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
573	<	Thread t = new Thread(new CheckedRunnable() {
573	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
574	>	Thread t = newStartedThread(new CheckedRunnable() {
575		public void realRun() throws InterruptedException {
576		for (int i = 0; i < SIZE; ++i)
577		q.put(i);
578		assertEquals(SIZE, q.size());
579		assertEquals(0, q.remainingCapacity());
580	+
581	+	Thread.currentThread().interrupt();
582	+	try {
583	+	q.put(99);
584	+	shouldThrow();
585	+	} catch (InterruptedException success) {}
586	+	assertFalse(Thread.interrupted());
587	+
588	+	pleaseInterrupt.countDown();
589		try {
590		q.put(99);
591		shouldThrow();
592		} catch (InterruptedException success) {}
593	+	assertFalse(Thread.interrupted());
594		}});
595
596	<	t.start();
597	<	Thread.sleep(SHORT_DELAY_MS);
596	>	await(pleaseInterrupt);
597	>	assertThreadStaysAlive(t);
598		t.interrupt();
599	<	t.join();
599	>	awaitTermination(t);
600		assertEquals(SIZE, q.size());
601		assertEquals(0, q.remainingCapacity());
602		}
603
604		/**
605	<	* put blocks waiting for take when full
605	>	* put blocks interruptibly waiting for take when full
606		*/
607		public void testPutWithTake() throws InterruptedException {
608		final int capacity = 2;
609		final LinkedBlockingDeque q = new LinkedBlockingDeque(capacity);
610	<	Thread t = new Thread(new CheckedRunnable() {
610	>	final CountDownLatch pleaseTake = new CountDownLatch(1);
611	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
612	>	Thread t = newStartedThread(new CheckedRunnable() {
613		public void realRun() throws InterruptedException {
614	<	for (int i = 0; i < capacity + 1; i++)
614	>	for (int i = 0; i < capacity; i++)
615		q.put(i);
616	+	pleaseTake.countDown();
617	+	q.put(86);
618	+
619	+	pleaseInterrupt.countDown();
620		try {
621		q.put(99);
622		shouldThrow();
623		} catch (InterruptedException success) {}
624	+	assertFalse(Thread.interrupted());
625		}});
626
627	<	t.start();
628	<	Thread.sleep(SHORT_DELAY_MS);
627	<	assertEquals(q.remainingCapacity(), 0);
627	>	await(pleaseTake);
628	>	assertEquals(0, q.remainingCapacity());
629		assertEquals(0, q.take());
630	<	Thread.sleep(SHORT_DELAY_MS);
630	>
631	>	await(pleaseInterrupt);
632	>	assertThreadStaysAlive(t);
633		t.interrupt();
634	<	t.join();
635	<	assertEquals(q.remainingCapacity(), 0);
634	>	awaitTermination(t);
635	>	assertEquals(0, q.remainingCapacity());
636		}
637
638		/**
#	Line 637 | Line 640 | public class LinkedBlockingDequeTest ext
640		*/
641		public void testTimedOffer() throws InterruptedException {
642		final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
643	<	Thread t = new Thread(new CheckedRunnable() {
643	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
644	>	Thread t = newStartedThread(new CheckedRunnable() {
645		public void realRun() throws InterruptedException {
646		q.put(new Object());
647		q.put(new Object());
648	<	assertFalse(q.offer(new Object(), SHORT_DELAY_MS, MILLISECONDS));
648	>	long startTime = System.nanoTime();
649	>	assertFalse(q.offer(new Object(), timeoutMillis(), MILLISECONDS));
650	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
651	>	pleaseInterrupt.countDown();
652		try {
653	<	q.offer(new Object(), LONG_DELAY_MS, MILLISECONDS);
653	>	q.offer(new Object(), 2 * LONG_DELAY_MS, MILLISECONDS);
654		shouldThrow();
655		} catch (InterruptedException success) {}
656		}});
657
658	<	t.start();
659	<	Thread.sleep(SMALL_DELAY_MS);
658	>	await(pleaseInterrupt);
659	>	assertThreadStaysAlive(t);
660		t.interrupt();
661	<	t.join();
661	>	awaitTermination(t);
662		}
663
664		/**
#	Line 665 | Line 672 | public class LinkedBlockingDequeTest ext
672		}
673
674		/**
675	<	* take blocks interruptibly when empty
669	<	*/
670	<	public void testTakeFromEmpty() throws InterruptedException {
671	<	final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
672	<	Thread t = new ThreadShouldThrow(InterruptedException.class) {
673	<	public void realRun() throws InterruptedException {
674	<	q.take();
675	<	}};
676	<
677	<	t.start();
678	<	Thread.sleep(SHORT_DELAY_MS);
679	<	t.interrupt();
680	<	t.join();
681	<	}
682	<
683	<	/**
684	<	* Take removes existing elements until empty, then blocks interruptibly
675	>	* take removes existing elements until empty, then blocks interruptibly
676		*/
677		public void testBlockingTake() throws InterruptedException {
678		final LinkedBlockingDeque q = populatedDeque(SIZE);
679	<	Thread t = new Thread(new CheckedRunnable() {
679	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
680	>	Thread t = newStartedThread(new CheckedRunnable() {
681		public void realRun() throws InterruptedException {
682		for (int i = 0; i < SIZE; ++i) {
683		assertEquals(i, q.take());
684		}
685	+
686	+	Thread.currentThread().interrupt();
687	+	try {
688	+	q.take();
689	+	shouldThrow();
690	+	} catch (InterruptedException success) {}
691	+	assertFalse(Thread.interrupted());
692	+
693	+	pleaseInterrupt.countDown();
694		try {
695		q.take();
696		shouldThrow();
697		} catch (InterruptedException success) {}
698	+	assertFalse(Thread.interrupted());
699		}});
700
701	<	t.start();
702	<	Thread.sleep(SHORT_DELAY_MS);
701	>	await(pleaseInterrupt);
702	>	assertThreadStaysAlive(t);
703		t.interrupt();
704	<	t.join();
704	>	awaitTermination(t);
705		}
706
705	–
707		/**
708		* poll succeeds unless empty
709		*/
#	Line 731 | Line 732 | public class LinkedBlockingDequeTest ext
732		public void testTimedPoll() throws InterruptedException {
733		LinkedBlockingDeque q = populatedDeque(SIZE);
734		for (int i = 0; i < SIZE; ++i) {
735	<	assertEquals(i, q.poll(SHORT_DELAY_MS, MILLISECONDS));
736	<	}
737	<	assertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS));
735	>	long startTime = System.nanoTime();
736	>	assertEquals(i, q.poll(LONG_DELAY_MS, MILLISECONDS));
737	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
738	>	}
739	>	long startTime = System.nanoTime();
740	>	assertNull(q.poll(timeoutMillis(), MILLISECONDS));
741	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
742	>	checkEmpty(q);
743		}
744
745		/**
#	Line 741 | Line 747 | public class LinkedBlockingDequeTest ext
747		* returning timeout status
748		*/
749		public void testInterruptedTimedPoll() throws InterruptedException {
750	<	Thread t = new Thread(new CheckedRunnable() {
750	>	final BlockingQueue<Integer> q = populatedDeque(SIZE);
751	>	final CountDownLatch aboutToWait = new CountDownLatch(1);
752	>	Thread t = newStartedThread(new CheckedRunnable() {
753		public void realRun() throws InterruptedException {
746	–	LinkedBlockingDeque q = populatedDeque(SIZE);
754		for (int i = 0; i < SIZE; ++i) {
755	<	assertEquals(i, q.poll(SHORT_DELAY_MS, MILLISECONDS));
755	>	long t0 = System.nanoTime();
756	>	assertEquals(i, (int) q.poll(LONG_DELAY_MS, MILLISECONDS));
757	>	assertTrue(millisElapsedSince(t0) < SMALL_DELAY_MS);
758		}
759	+	long t0 = System.nanoTime();
760	+	aboutToWait.countDown();
761		try {
762	<	q.poll(SMALL_DELAY_MS, MILLISECONDS);
752	<	shouldThrow();
753	<	} catch (InterruptedException success) {}
754	<	}});
755	<
756	<	t.start();
757	<	Thread.sleep(SHORT_DELAY_MS);
758	<	t.interrupt();
759	<	t.join();
760	<	}
761	<
762	<	/**
763	<	*  timed poll before a delayed offer fails; after offer succeeds;
764	<	*  on interruption throws
765	<	*/
766	<	public void testTimedPollWithOffer() throws InterruptedException {
767	<	final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
768	<	Thread t = new Thread(new CheckedRunnable() {
769	<	public void realRun() throws InterruptedException {
770	<	assertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS));
771	<	assertSame(zero, q.poll(LONG_DELAY_MS, MILLISECONDS));
772	<	try {
773	<	q.poll(LONG_DELAY_MS, MILLISECONDS);
762	>	q.poll(MEDIUM_DELAY_MS, MILLISECONDS);
763		shouldThrow();
764	<	} catch (InterruptedException success) {}
764	>	} catch (InterruptedException success) {
765	>	assertTrue(millisElapsedSince(t0) < MEDIUM_DELAY_MS);
766	>	}
767		}});
768
769	<	t.start();
770	<	Thread.sleep(SMALL_DELAY_MS);
780	<	assertTrue(q.offer(zero, SHORT_DELAY_MS, MILLISECONDS));
769	>	aboutToWait.await();
770	>	waitForThreadToEnterWaitState(t, SMALL_DELAY_MS);
771		t.interrupt();
772	<	t.join();
772	>	awaitTermination(t, MEDIUM_DELAY_MS);
773	>	checkEmpty(q);
774		}
775
785	–
776		/**
777		* putFirst(null) throws NPE
778		*/
779	<	public void testPutFirstNull() throws InterruptedException {
779	>	public void testPutFirstNull() throws InterruptedException {
780	>	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
781		try {
791	–	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
782		q.putFirst(null);
783		shouldThrow();
784		} catch (NullPointerException success) {}
785	<	}
785	>	}
786
787		/**
788		* all elements successfully putFirst are contained
789		*/
790	<	public void testPutFirst() throws InterruptedException {
791	<	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
792	<	for (int i = 0; i < SIZE; ++i) {
793	<	Integer I = new Integer(i);
794	<	q.putFirst(I);
795	<	assertTrue(q.contains(I));
796	<	}
797	<	assertEquals(0, q.remainingCapacity());
790	>	public void testPutFirst() throws InterruptedException {
791	>	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
792	>	for (int i = 0; i < SIZE; ++i) {
793	>	Integer I = new Integer(i);
794	>	q.putFirst(I);
795	>	assertTrue(q.contains(I));
796	>	}
797	>	assertEquals(0, q.remainingCapacity());
798		}
799
800		/**
#	Line 812 | Line 802 | public class LinkedBlockingDequeTest ext
802		*/
803		public void testBlockingPutFirst() throws InterruptedException {
804		final LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
805	<	Thread t = new Thread(new CheckedRunnable() {
805	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
806	>	Thread t = newStartedThread(new CheckedRunnable() {
807		public void realRun() throws InterruptedException {
808		for (int i = 0; i < SIZE; ++i)
809		q.putFirst(i);
810		assertEquals(SIZE, q.size());
811		assertEquals(0, q.remainingCapacity());
812	+
813	+	Thread.currentThread().interrupt();
814	+	try {
815	+	q.putFirst(99);
816	+	shouldThrow();
817	+	} catch (InterruptedException success) {}
818	+	assertFalse(Thread.interrupted());
819	+
820	+	pleaseInterrupt.countDown();
821		try {
822		q.putFirst(99);
823		shouldThrow();
824		} catch (InterruptedException success) {}
825	+	assertFalse(Thread.interrupted());
826		}});
827
828	<	t.start();
829	<	Thread.sleep(SHORT_DELAY_MS);
828	>	await(pleaseInterrupt);
829	>	assertThreadStaysAlive(t);
830		t.interrupt();
831	<	t.join();
831	>	awaitTermination(t);
832		assertEquals(SIZE, q.size());
833		assertEquals(0, q.remainingCapacity());
834		}
835
836		/**
837	<	* putFirst blocks waiting for take when full
837	>	* putFirst blocks interruptibly waiting for take when full
838		*/
839		public void testPutFirstWithTake() throws InterruptedException {
840		final int capacity = 2;
841		final LinkedBlockingDeque q = new LinkedBlockingDeque(capacity);
842	<	Thread t = new Thread(new CheckedRunnable() {
842	>	final CountDownLatch pleaseTake = new CountDownLatch(1);
843	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
844	>	Thread t = newStartedThread(new CheckedRunnable() {
845		public void realRun() throws InterruptedException {
846	<	for (int i = 0; i < capacity + 1; i++)
846	>	for (int i = 0; i < capacity; i++)
847		q.putFirst(i);
848	+	pleaseTake.countDown();
849	+	q.putFirst(86);
850	+
851	+	pleaseInterrupt.countDown();
852		try {
853		q.putFirst(99);
854		shouldThrow();
855		} catch (InterruptedException success) {}
856	+	assertFalse(Thread.interrupted());
857		}});
858
859	<	t.start();
860	<	Thread.sleep(SHORT_DELAY_MS);
853	<	assertEquals(q.remainingCapacity(), 0);
859	>	await(pleaseTake);
860	>	assertEquals(0, q.remainingCapacity());
861		assertEquals(capacity - 1, q.take());
862	<	Thread.sleep(SHORT_DELAY_MS);
862	>
863	>	await(pleaseInterrupt);
864	>	assertThreadStaysAlive(t);
865		t.interrupt();
866	<	t.join();
867	<	assertEquals(q.remainingCapacity(), 0);
866	>	awaitTermination(t);
867	>	assertEquals(0, q.remainingCapacity());
868		}
869
870		/**
#	Line 863 | Line 872 | public class LinkedBlockingDequeTest ext
872		*/
873		public void testTimedOfferFirst() throws InterruptedException {
874		final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
875	<	Thread t = new Thread(new CheckedRunnable() {
875	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
876	>	Thread t = newStartedThread(new CheckedRunnable() {
877		public void realRun() throws InterruptedException {
878		q.putFirst(new Object());
879		q.putFirst(new Object());
880	<	assertFalse(q.offerFirst(new Object(), SHORT_DELAY_MS, MILLISECONDS));
880	>	long startTime = System.nanoTime();
881	>	assertFalse(q.offerFirst(new Object(), timeoutMillis(), MILLISECONDS));
882	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
883	>	pleaseInterrupt.countDown();
884		try {
885	<	q.offerFirst(new Object(), LONG_DELAY_MS, MILLISECONDS);
885	>	q.offerFirst(new Object(), 2 * LONG_DELAY_MS, MILLISECONDS);
886		shouldThrow();
887		} catch (InterruptedException success) {}
888		}});
889
890	<	t.start();
891	<	Thread.sleep(SMALL_DELAY_MS);
890	>	await(pleaseInterrupt);
891	>	assertThreadStaysAlive(t);
892		t.interrupt();
893	<	t.join();
893	>	awaitTermination(t);
894		}
895
896		/**
#	Line 891 | Line 904 | public class LinkedBlockingDequeTest ext
904		}
905
906		/**
907	<	* takeFirst blocks interruptibly when empty
907	>	* takeFirst() blocks interruptibly when empty
908		*/
909	<	public void testTakeFirstFromEmpty() throws InterruptedException {
910	<	final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
911	<	Thread t = new ThreadShouldThrow(InterruptedException.class) {
912	<	public void realRun() throws InterruptedException {
913	<	q.takeFirst();
914	<	}};
909	>	public void testTakeFirstFromEmptyBlocksInterruptibly() {
910	>	final BlockingDeque q = new LinkedBlockingDeque();
911	>	final CountDownLatch threadStarted = new CountDownLatch(1);
912	>	Thread t = newStartedThread(new CheckedRunnable() {
913	>	public void realRun() {
914	>	threadStarted.countDown();
915	>	try {
916	>	q.takeFirst();
917	>	shouldThrow();
918	>	} catch (InterruptedException success) {}
919	>	assertFalse(Thread.interrupted());
920	>	}});
921
922	<	t.start();
923	<	Thread.sleep(SHORT_DELAY_MS);
922	>	await(threadStarted);
923	>	assertThreadStaysAlive(t);
924		t.interrupt();
925	<	t.join();
925	>	awaitTermination(t);
926	>	}
927	>
928	>	/**
929	>	* takeFirst() throws InterruptedException immediately if interrupted
930	>	* before waiting
931	>	*/
932	>	public void testTakeFirstFromEmptyAfterInterrupt() {
933	>	final BlockingDeque q = new LinkedBlockingDeque();
934	>	Thread t = newStartedThread(new CheckedRunnable() {
935	>	public void realRun() {
936	>	Thread.currentThread().interrupt();
937	>	try {
938	>	q.takeFirst();
939	>	shouldThrow();
940	>	} catch (InterruptedException success) {}
941	>	assertFalse(Thread.interrupted());
942	>	}});
943	>
944	>	awaitTermination(t);
945	>	}
946	>
947	>	/**
948	>	* takeLast() blocks interruptibly when empty
949	>	*/
950	>	public void testTakeLastFromEmptyBlocksInterruptibly() {
951	>	final BlockingDeque q = new LinkedBlockingDeque();
952	>	final CountDownLatch threadStarted = new CountDownLatch(1);
953	>	Thread t = newStartedThread(new CheckedRunnable() {
954	>	public void realRun() {
955	>	threadStarted.countDown();
956	>	try {
957	>	q.takeLast();
958	>	shouldThrow();
959	>	} catch (InterruptedException success) {}
960	>	assertFalse(Thread.interrupted());
961	>	}});
962	>
963	>	await(threadStarted);
964	>	assertThreadStaysAlive(t);
965	>	t.interrupt();
966	>	awaitTermination(t);
967		}
968
969		/**
970	<	* TakeFirst removes existing elements until empty, then blocks interruptibly
970	>	* takeLast() throws InterruptedException immediately if interrupted
971	>	* before waiting
972	>	*/
973	>	public void testTakeLastFromEmptyAfterInterrupt() {
974	>	final BlockingDeque q = new LinkedBlockingDeque();
975	>	Thread t = newStartedThread(new CheckedRunnable() {
976	>	public void realRun() {
977	>	Thread.currentThread().interrupt();
978	>	try {
979	>	q.takeLast();
980	>	shouldThrow();
981	>	} catch (InterruptedException success) {}
982	>	assertFalse(Thread.interrupted());
983	>	}});
984	>
985	>	awaitTermination(t);
986	>	}
987	>
988	>	/**
989	>	* takeFirst removes existing elements until empty, then blocks interruptibly
990		*/
991		public void testBlockingTakeFirst() throws InterruptedException {
992		final LinkedBlockingDeque q = populatedDeque(SIZE);
993	<	Thread t = new Thread(new CheckedRunnable() {
993	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
994	>	Thread t = newStartedThread(new CheckedRunnable() {
995		public void realRun() throws InterruptedException {
996	<	for (int i = 0; i < SIZE; ++i)
996	>	for (int i = 0; i < SIZE; ++i) {
997		assertEquals(i, q.takeFirst());
998	+	}
999	+
1000	+	Thread.currentThread().interrupt();
1001		try {
1002		q.takeFirst();
1003		shouldThrow();
1004		} catch (InterruptedException success) {}
1005	+	assertFalse(Thread.interrupted());
1006	+
1007	+	pleaseInterrupt.countDown();
1008	+	try {
1009	+	q.takeFirst();
1010	+	shouldThrow();
1011	+	} catch (InterruptedException success) {}
1012	+	assertFalse(Thread.interrupted());
1013		}});
1014
1015	<	t.start();
1016	<	Thread.sleep(SHORT_DELAY_MS);
1015	>	await(pleaseInterrupt);
1016	>	assertThreadStaysAlive(t);
1017		t.interrupt();
1018	<	t.join();
1018	>	awaitTermination(t);
1019		}
1020
930	–
1021		/**
1022		* timed pollFirst with zero timeout succeeds when non-empty, else times out
1023		*/
#	Line 945 | Line 1035 | public class LinkedBlockingDequeTest ext
1035		public void testTimedPollFirst() throws InterruptedException {
1036		LinkedBlockingDeque q = populatedDeque(SIZE);
1037		for (int i = 0; i < SIZE; ++i) {
1038	<	assertEquals(i, q.pollFirst(SHORT_DELAY_MS, MILLISECONDS));
1039	<	}
1040	<	assertNull(q.pollFirst(SHORT_DELAY_MS, MILLISECONDS));
1038	>	long startTime = System.nanoTime();
1039	>	assertEquals(i, q.pollFirst(LONG_DELAY_MS, MILLISECONDS));
1040	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1041	>	}
1042	>	long startTime = System.nanoTime();
1043	>	assertNull(q.pollFirst(timeoutMillis(), MILLISECONDS));
1044	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
1045	>	checkEmpty(q);
1046		}
1047
1048		/**
#	Line 955 | Line 1050 | public class LinkedBlockingDequeTest ext
1050		* returning timeout status
1051		*/
1052		public void testInterruptedTimedPollFirst() throws InterruptedException {
1053	<	Thread t = new Thread(new CheckedRunnable() {
1053	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
1054	>	Thread t = newStartedThread(new CheckedRunnable() {
1055		public void realRun() throws InterruptedException {
1056		LinkedBlockingDeque q = populatedDeque(SIZE);
1057		for (int i = 0; i < SIZE; ++i) {
1058	<	assertEquals(i, q.pollFirst(SHORT_DELAY_MS, MILLISECONDS));
1058	>	assertEquals(i, q.pollFirst(LONG_DELAY_MS, MILLISECONDS));
1059		}
1060	+
1061	+	Thread.currentThread().interrupt();
1062		try {
1063		q.pollFirst(SMALL_DELAY_MS, MILLISECONDS);
1064		shouldThrow();
1065		} catch (InterruptedException success) {}
1066	+	assertFalse(Thread.interrupted());
1067	+
1068	+	pleaseInterrupt.countDown();
1069	+	try {
1070	+	q.pollFirst(LONG_DELAY_MS, MILLISECONDS);
1071	+	shouldThrow();
1072	+	} catch (InterruptedException success) {}
1073	+	assertFalse(Thread.interrupted());
1074		}});
1075
1076	<	t.start();
1077	<	Thread.sleep(SHORT_DELAY_MS);
1076	>	await(pleaseInterrupt);
1077	>	assertThreadStaysAlive(t);
1078		t.interrupt();
1079	<	t.join();
1079	>	awaitTermination(t);
1080		}
1081
1082		/**
1083	<	*  timed pollFirst before a delayed offerFirst fails; after offerFirst succeeds;
1084	<	*  on interruption throws
1083	>	* timed pollFirst before a delayed offerFirst fails; after offerFirst succeeds;
1084	>	* on interruption throws
1085		*/
1086		public void testTimedPollFirstWithOfferFirst() throws InterruptedException {
1087		final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
1088	<	Thread t = new Thread(new CheckedRunnable() {
1088	>	final CheckedBarrier barrier = new CheckedBarrier(2);
1089	>	Thread t = newStartedThread(new CheckedRunnable() {
1090		public void realRun() throws InterruptedException {
1091	<	assertNull(q.pollFirst(SHORT_DELAY_MS, MILLISECONDS));
1091	>	long startTime = System.nanoTime();
1092	>	assertNull(q.pollFirst(timeoutMillis(), MILLISECONDS));
1093	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
1094	>
1095	>	barrier.await();
1096	>
1097		assertSame(zero, q.pollFirst(LONG_DELAY_MS, MILLISECONDS));
1098	+
1099	+	Thread.currentThread().interrupt();
1100		try {
1101		q.pollFirst(LONG_DELAY_MS, MILLISECONDS);
1102		shouldThrow();
1103		} catch (InterruptedException success) {}
1104	+
1105	+	barrier.await();
1106	+	try {
1107	+	q.pollFirst(LONG_DELAY_MS, MILLISECONDS);
1108	+	shouldThrow();
1109	+	} catch (InterruptedException success) {}
1110	+	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1111		}});
1112
1113	<	t.start();
1114	<	Thread.sleep(SMALL_DELAY_MS);
1115	<	assertTrue(q.offerFirst(zero, SHORT_DELAY_MS, MILLISECONDS));
1113	>	barrier.await();
1114	>	long startTime = System.nanoTime();
1115	>	assertTrue(q.offerFirst(zero, LONG_DELAY_MS, MILLISECONDS));
1116	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1117	>	barrier.await();
1118	>	assertThreadStaysAlive(t);
1119		t.interrupt();
1120	<	t.join();
1120	>	awaitTermination(t);
1121		}
1122
1123		/**
1124		* putLast(null) throws NPE
1125		*/
1126	<	public void testPutLastNull() throws InterruptedException {
1126	>	public void testPutLastNull() throws InterruptedException {
1127	>	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
1128		try {
1004	–	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
1129		q.putLast(null);
1130		shouldThrow();
1131		} catch (NullPointerException success) {}
1132	<	}
1132	>	}
1133
1134		/**
1135		* all elements successfully putLast are contained
1136		*/
1137	<	public void testPutLast() throws InterruptedException {
1138	<	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
1139	<	for (int i = 0; i < SIZE; ++i) {
1140	<	Integer I = new Integer(i);
1141	<	q.putLast(I);
1142	<	assertTrue(q.contains(I));
1143	<	}
1144	<	assertEquals(0, q.remainingCapacity());
1137	>	public void testPutLast() throws InterruptedException {
1138	>	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
1139	>	for (int i = 0; i < SIZE; ++i) {
1140	>	Integer I = new Integer(i);
1141	>	q.putLast(I);
1142	>	assertTrue(q.contains(I));
1143	>	}
1144	>	assertEquals(0, q.remainingCapacity());
1145		}
1146
1147		/**
#	Line 1025 | Line 1149 | public class LinkedBlockingDequeTest ext
1149		*/
1150		public void testBlockingPutLast() throws InterruptedException {
1151		final LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
1152	<	Thread t = new Thread(new CheckedRunnable() {
1152	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
1153	>	Thread t = newStartedThread(new CheckedRunnable() {
1154		public void realRun() throws InterruptedException {
1155		for (int i = 0; i < SIZE; ++i)
1156		q.putLast(i);
1157		assertEquals(SIZE, q.size());
1158		assertEquals(0, q.remainingCapacity());
1159	+
1160	+	Thread.currentThread().interrupt();
1161	+	try {
1162	+	q.putLast(99);
1163	+	shouldThrow();
1164	+	} catch (InterruptedException success) {}
1165	+	assertFalse(Thread.interrupted());
1166	+
1167	+	pleaseInterrupt.countDown();
1168		try {
1169		q.putLast(99);
1170		shouldThrow();
1171		} catch (InterruptedException success) {}
1172	+	assertFalse(Thread.interrupted());
1173		}});
1174
1175	<	t.start();
1176	<	Thread.sleep(SHORT_DELAY_MS);
1175	>	await(pleaseInterrupt);
1176	>	assertThreadStaysAlive(t);
1177		t.interrupt();
1178	<	t.join();
1178	>	awaitTermination(t);
1179		assertEquals(SIZE, q.size());
1180		assertEquals(0, q.remainingCapacity());
1181		}
1182
1183		/**
1184	<	* putLast blocks waiting for take when full
1184	>	* putLast blocks interruptibly waiting for take when full
1185		*/
1186		public void testPutLastWithTake() throws InterruptedException {
1187		final int capacity = 2;
1188		final LinkedBlockingDeque q = new LinkedBlockingDeque(capacity);
1189	<	Thread t = new Thread(new CheckedRunnable() {
1189	>	final CountDownLatch pleaseTake = new CountDownLatch(1);
1190	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
1191	>	Thread t = newStartedThread(new CheckedRunnable() {
1192		public void realRun() throws InterruptedException {
1193	<	for (int i = 0; i < capacity + 1; i++)
1193	>	for (int i = 0; i < capacity; i++)
1194		q.putLast(i);
1195	+	pleaseTake.countDown();
1196	+	q.putLast(86);
1197	+
1198	+	pleaseInterrupt.countDown();
1199		try {
1200		q.putLast(99);
1201		shouldThrow();
1202		} catch (InterruptedException success) {}
1203	+	assertFalse(Thread.interrupted());
1204		}});
1205
1206	<	t.start();
1207	<	Thread.sleep(SHORT_DELAY_MS);
1066	<	assertEquals(q.remainingCapacity(), 0);
1206	>	await(pleaseTake);
1207	>	assertEquals(0, q.remainingCapacity());
1208		assertEquals(0, q.take());
1209	<	Thread.sleep(SHORT_DELAY_MS);
1209	>
1210	>	await(pleaseInterrupt);
1211	>	assertThreadStaysAlive(t);
1212		t.interrupt();
1213	<	t.join();
1214	<	assertEquals(q.remainingCapacity(), 0);
1213	>	awaitTermination(t);
1214	>	assertEquals(0, q.remainingCapacity());
1215		}
1216
1217		/**
#	Line 1076 | Line 1219 | public class LinkedBlockingDequeTest ext
1219		*/
1220		public void testTimedOfferLast() throws InterruptedException {
1221		final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
1222	<	Thread t = new Thread(new CheckedRunnable() {
1222	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
1223	>	Thread t = newStartedThread(new CheckedRunnable() {
1224		public void realRun() throws InterruptedException {
1225		q.putLast(new Object());
1226		q.putLast(new Object());
1227	<	assertFalse(q.offerLast(new Object(), SHORT_DELAY_MS, MILLISECONDS));
1227	>	long startTime = System.nanoTime();
1228	>	assertFalse(q.offerLast(new Object(), timeoutMillis(), MILLISECONDS));
1229	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
1230	>	pleaseInterrupt.countDown();
1231		try {
1232	<	q.offerLast(new Object(), LONG_DELAY_MS, MILLISECONDS);
1232	>	q.offerLast(new Object(), 2 * LONG_DELAY_MS, MILLISECONDS);
1233		shouldThrow();
1234		} catch (InterruptedException success) {}
1235		}});
1236
1237	<	t.start();
1238	<	Thread.sleep(SMALL_DELAY_MS);
1237	>	await(pleaseInterrupt);
1238	>	assertThreadStaysAlive(t);
1239		t.interrupt();
1240	<	t.join();
1240	>	awaitTermination(t);
1241		}
1242
1243		/**
#	Line 1104 | Line 1251 | public class LinkedBlockingDequeTest ext
1251		}
1252
1253		/**
1254	<	* takeLast blocks interruptibly when empty
1108	<	*/
1109	<	public void testTakeLastFromEmpty() throws InterruptedException {
1110	<	final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
1111	<	Thread t = new ThreadShouldThrow(InterruptedException.class) {
1112	<	public void realRun() throws InterruptedException {
1113	<	q.takeLast();
1114	<	}};
1115	<
1116	<	t.start();
1117	<	Thread.sleep(SHORT_DELAY_MS);
1118	<	t.interrupt();
1119	<	t.join();
1120	<	}
1121	<
1122	<	/**
1123	<	* TakeLast removes existing elements until empty, then blocks interruptibly
1254	>	* takeLast removes existing elements until empty, then blocks interruptibly
1255		*/
1256		public void testBlockingTakeLast() throws InterruptedException {
1257		final LinkedBlockingDeque q = populatedDeque(SIZE);
1258	<	Thread t = new Thread(new CheckedRunnable() {
1258	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
1259	>	Thread t = newStartedThread(new CheckedRunnable() {
1260		public void realRun() throws InterruptedException {
1261	<	for (int i = 0; i < SIZE; ++i)
1262	<	assertEquals(SIZE - 1 - i, q.takeLast());
1261	>	for (int i = 0; i < SIZE; ++i) {
1262	>	assertEquals(SIZE-i-1, q.takeLast());
1263	>	}
1264	>
1265	>	Thread.currentThread().interrupt();
1266		try {
1267		q.takeLast();
1268		shouldThrow();
1269		} catch (InterruptedException success) {}
1270	+	assertFalse(Thread.interrupted());
1271	+
1272	+	pleaseInterrupt.countDown();
1273	+	try {
1274	+	q.takeLast();
1275	+	shouldThrow();
1276	+	} catch (InterruptedException success) {}
1277	+	assertFalse(Thread.interrupted());
1278		}});
1279
1280	<	t.start();
1281	<	Thread.sleep(SHORT_DELAY_MS);
1280	>	await(pleaseInterrupt);
1281	>	assertThreadStaysAlive(t);
1282		t.interrupt();
1283	<	t.join();
1283	>	awaitTermination(t);
1284		}
1285
1286		/**
#	Line 1157 | Line 1300 | public class LinkedBlockingDequeTest ext
1300		public void testTimedPollLast() throws InterruptedException {
1301		LinkedBlockingDeque q = populatedDeque(SIZE);
1302		for (int i = 0; i < SIZE; ++i) {
1303	<	assertEquals(SIZE-i-1, q.pollLast(SHORT_DELAY_MS, MILLISECONDS));
1304	<	}
1305	<	assertNull(q.pollLast(SHORT_DELAY_MS, MILLISECONDS));
1303	>	long startTime = System.nanoTime();
1304	>	assertEquals(SIZE-i-1, q.pollLast(LONG_DELAY_MS, MILLISECONDS));
1305	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1306	>	}
1307	>	long startTime = System.nanoTime();
1308	>	assertNull(q.pollLast(timeoutMillis(), MILLISECONDS));
1309	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
1310	>	checkEmpty(q);
1311		}
1312
1313		/**
#	Line 1167 | Line 1315 | public class LinkedBlockingDequeTest ext
1315		* returning timeout status
1316		*/
1317		public void testInterruptedTimedPollLast() throws InterruptedException {
1318	<	Thread t = new Thread(new CheckedRunnable() {
1318	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
1319	>	Thread t = newStartedThread(new CheckedRunnable() {
1320		public void realRun() throws InterruptedException {
1321		LinkedBlockingDeque q = populatedDeque(SIZE);
1322		for (int i = 0; i < SIZE; ++i) {
1323	<	assertEquals(SIZE-i-1, q.pollLast(SHORT_DELAY_MS, MILLISECONDS));
1323	>	assertEquals(SIZE-i-1, q.pollLast(LONG_DELAY_MS, MILLISECONDS));
1324		}
1325	+
1326	+	Thread.currentThread().interrupt();
1327	+	try {
1328	+	q.pollLast(LONG_DELAY_MS, MILLISECONDS);
1329	+	shouldThrow();
1330	+	} catch (InterruptedException success) {}
1331	+	assertFalse(Thread.interrupted());
1332	+
1333	+	pleaseInterrupt.countDown();
1334		try {
1335	<	q.pollLast(SMALL_DELAY_MS, MILLISECONDS);
1335	>	q.pollLast(LONG_DELAY_MS, MILLISECONDS);
1336		shouldThrow();
1337		} catch (InterruptedException success) {}
1338	+	assertFalse(Thread.interrupted());
1339		}});
1340
1341	<	t.start();
1342	<	Thread.sleep(SHORT_DELAY_MS);
1341	>	await(pleaseInterrupt);
1342	>	assertThreadStaysAlive(t);
1343		t.interrupt();
1344	<	t.join();
1344	>	awaitTermination(t);
1345		}
1346
1347		/**
1348	<	*  timed poll before a delayed offerLast fails; after offerLast succeeds;
1349	<	*  on interruption throws
1348	>	* timed poll before a delayed offerLast fails; after offerLast succeeds;
1349	>	* on interruption throws
1350		*/
1351		public void testTimedPollWithOfferLast() throws InterruptedException {
1352		final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
1353	<	Thread t = new Thread(new CheckedRunnable() {
1353	>	final CheckedBarrier barrier = new CheckedBarrier(2);
1354	>	Thread t = newStartedThread(new CheckedRunnable() {
1355		public void realRun() throws InterruptedException {
1356	<	assertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS));
1356	>	long startTime = System.nanoTime();
1357	>	assertNull(q.poll(timeoutMillis(), MILLISECONDS));
1358	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
1359	>
1360	>	barrier.await();
1361	>
1362		assertSame(zero, q.poll(LONG_DELAY_MS, MILLISECONDS));
1363	+
1364	+	Thread.currentThread().interrupt();
1365	+	try {
1366	+	q.poll(LONG_DELAY_MS, MILLISECONDS);
1367	+	shouldThrow();
1368	+	} catch (InterruptedException success) {}
1369	+	assertFalse(Thread.interrupted());
1370	+
1371	+	barrier.await();
1372		try {
1373		q.poll(LONG_DELAY_MS, MILLISECONDS);
1374		shouldThrow();
1375		} catch (InterruptedException success) {}
1376	+	assertFalse(Thread.interrupted());
1377		}});
1378
1379	<	t.start();
1380	<	Thread.sleep(SMALL_DELAY_MS);
1381	<	assertTrue(q.offerLast(zero, SHORT_DELAY_MS, MILLISECONDS));
1379	>	barrier.await();
1380	>	long startTime = System.nanoTime();
1381	>	assertTrue(q.offerLast(zero, LONG_DELAY_MS, MILLISECONDS));
1382	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1383	>
1384	>	barrier.await();
1385	>	assertThreadStaysAlive(t);
1386		t.interrupt();
1387	<	t.join();
1387	>	awaitTermination(t);
1388		}
1389
1211	–
1390		/**
1391		* element returns next element, or throws NSEE if empty
1392		*/
#	Line 1225 | Line 1403 | public class LinkedBlockingDequeTest ext
1403		}
1404
1405		/**
1228	–	* remove(x) removes x and returns true if present
1229	–	*/
1230	–	public void testRemoveElement() {
1231	–	LinkedBlockingDeque q = populatedDeque(SIZE);
1232	–	for (int i = 1; i < SIZE; i+=2) {
1233	–	assertTrue(q.remove(new Integer(i)));
1234	–	}
1235	–	for (int i = 0; i < SIZE; i+=2) {
1236	–	assertTrue(q.remove(new Integer(i)));
1237	–	assertFalse(q.remove(new Integer(i+1)));
1238	–	}
1239	–	assertTrue(q.isEmpty());
1240	–	}
1241	–
1242	–	/**
1406		* contains(x) reports true when elements added but not yet removed
1407		*/
1408		public void testContains() {
#	Line 1317 | Line 1480 | public class LinkedBlockingDequeTest ext
1480		}
1481
1482		/**
1483	<	* toArray contains all elements
1483	>	* toArray contains all elements in FIFO order
1484		*/
1485	<	public void testToArray() throws InterruptedException{
1485	>	public void testToArray() throws InterruptedException {
1486		LinkedBlockingDeque q = populatedDeque(SIZE);
1487		Object[] o = q.toArray();
1488		for (int i = 0; i < o.length; i++)
1489	<	assertEquals(o[i], q.take());
1489	>	assertSame(o[i], q.poll());
1490		}
1491
1492		/**
1493	<	* toArray(a) contains all elements
1493	>	* toArray(a) contains all elements in FIFO order
1494		*/
1495	<	public void testToArray2() throws InterruptedException {
1496	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1495	>	public void testToArray2() {
1496	>	LinkedBlockingDeque<Integer> q = populatedDeque(SIZE);
1497		Integer[] ints = new Integer[SIZE];
1498	<	ints = (Integer[])q.toArray(ints);
1498	>	Integer[] array = q.toArray(ints);
1499	>	assertSame(ints, array);
1500		for (int i = 0; i < ints.length; i++)
1501	<	assertEquals(ints[i], q.take());
1338	<	}
1339	<
1340	<	/**
1341	<	* toArray(null) throws NPE
1342	<	*/
1343	<	public void testToArray_BadArg() {
1344	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1345	<	try {
1346	<	Object o[] = q.toArray(null);
1347	<	shouldThrow();
1348	<	} catch (NullPointerException success) {}
1501	>	assertSame(ints[i], q.remove());
1502		}
1503
1504		/**
1505	<	* toArray with incompatible array type throws CCE
1505	>	* toArray(incompatible array type) throws ArrayStoreException
1506		*/
1507		public void testToArray1_BadArg() {
1508		LinkedBlockingDeque q = populatedDeque(SIZE);
1509		try {
1510	<	Object o[] = q.toArray(new String[10]);
1510	>	q.toArray(new String[10]);
1511		shouldThrow();
1512		} catch (ArrayStoreException success) {}
1513		}
1514
1362	–
1515		/**
1516		* iterator iterates through all elements
1517		*/
#	Line 1374 | Line 1526 | public class LinkedBlockingDequeTest ext
1526		/**
1527		* iterator.remove removes current element
1528		*/
1529	<	public void testIteratorRemove () {
1529	>	public void testIteratorRemove() {
1530		final LinkedBlockingDeque q = new LinkedBlockingDeque(3);
1531		q.add(two);
1532		q.add(one);
#	Line 1385 | Line 1537 | public class LinkedBlockingDequeTest ext
1537		it.remove();
1538
1539		it = q.iterator();
1540	<	assertEquals(it.next(), one);
1541	<	assertEquals(it.next(), three);
1540	>	assertSame(it.next(), one);
1541	>	assertSame(it.next(), three);
1542		assertFalse(it.hasNext());
1543		}
1544
1393	–
1545		/**
1546		* iterator ordering is FIFO
1547		*/
#	Line 1410 | Line 1561 | public class LinkedBlockingDequeTest ext
1561		/**
1562		* Modifications do not cause iterators to fail
1563		*/
1564	<	public void testWeaklyConsistentIteration () {
1564	>	public void testWeaklyConsistentIteration() {
1565		final LinkedBlockingDeque q = new LinkedBlockingDeque(3);
1566		q.add(one);
1567		q.add(two);
#	Line 1422 | Line 1573 | public class LinkedBlockingDequeTest ext
1573		assertEquals(0, q.size());
1574		}
1575
1425	–
1576		/**
1577	<	*  Descending iterator iterates through all elements
1577	>	* Descending iterator iterates through all elements
1578		*/
1579		public void testDescendingIterator() {
1580		LinkedBlockingDeque q = populatedDeque(SIZE);
#	Line 1443 | Line 1593 | public class LinkedBlockingDequeTest ext
1593		}
1594
1595		/**
1596	<	*  Descending iterator ordering is reverse FIFO
1596	>	* Descending iterator ordering is reverse FIFO
1597		*/
1598		public void testDescendingIteratorOrdering() {
1599		final LinkedBlockingDeque q = new LinkedBlockingDeque();
#	Line 1466 | Line 1616 | public class LinkedBlockingDequeTest ext
1616		/**
1617		* descendingIterator.remove removes current element
1618		*/
1619	<	public void testDescendingIteratorRemove () {
1619	>	public void testDescendingIteratorRemove() {
1620		final LinkedBlockingDeque q = new LinkedBlockingDeque();
1621		for (int iters = 0; iters < 100; ++iters) {
1622		q.add(new Integer(3));
#	Line 1485 | Line 1635 | public class LinkedBlockingDequeTest ext
1635		}
1636		}
1637
1488	–
1638		/**
1639		* toString contains toStrings of elements
1640		*/
#	Line 1493 | Line 1642 | public class LinkedBlockingDequeTest ext
1642		LinkedBlockingDeque q = populatedDeque(SIZE);
1643		String s = q.toString();
1644		for (int i = 0; i < SIZE; ++i) {
1645	<	assertTrue(s.indexOf(String.valueOf(i)) >= 0);
1645	>	assertTrue(s.contains(String.valueOf(i)));
1646		}
1647		}
1648
1500	–
1649		/**
1650		* offer transfers elements across Executor tasks
1651		*/
#	Line 1506 | Line 1654 | public class LinkedBlockingDequeTest ext
1654		q.add(one);
1655		q.add(two);
1656		ExecutorService executor = Executors.newFixedThreadPool(2);
1657	+	final CheckedBarrier threadsStarted = new CheckedBarrier(2);
1658		executor.execute(new CheckedRunnable() {
1659		public void realRun() throws InterruptedException {
1660		assertFalse(q.offer(three));
1661	<	assertTrue(q.offer(three, MEDIUM_DELAY_MS, MILLISECONDS));
1661	>	threadsStarted.await();
1662	>	assertTrue(q.offer(three, LONG_DELAY_MS, MILLISECONDS));
1663		assertEquals(0, q.remainingCapacity());
1664		}});
1665
1666		executor.execute(new CheckedRunnable() {
1667		public void realRun() throws InterruptedException {
1668	<	Thread.sleep(SMALL_DELAY_MS);
1668	>	threadsStarted.await();
1669		assertSame(one, q.take());
1670		}});
1671
#	Line 1523 | Line 1673 | public class LinkedBlockingDequeTest ext
1673		}
1674
1675		/**
1676	<	* poll retrieves elements across Executor threads
1676	>	* timed poll retrieves elements across Executor threads
1677		*/
1678		public void testPollInExecutor() {
1679		final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
1680	+	final CheckedBarrier threadsStarted = new CheckedBarrier(2);
1681		ExecutorService executor = Executors.newFixedThreadPool(2);
1682		executor.execute(new CheckedRunnable() {
1683		public void realRun() throws InterruptedException {
1684		assertNull(q.poll());
1685	<	assertSame(one, q.poll(MEDIUM_DELAY_MS, MILLISECONDS));
1686	<	assertTrue(q.isEmpty());
1685	>	threadsStarted.await();
1686	>	assertSame(one, q.poll(LONG_DELAY_MS, MILLISECONDS));
1687	>	checkEmpty(q);
1688		}});
1689
1690		executor.execute(new CheckedRunnable() {
1691		public void realRun() throws InterruptedException {
1692	<	Thread.sleep(SMALL_DELAY_MS);
1692	>	threadsStarted.await();
1693		q.put(one);
1694		}});
1695
#	Line 1548 | Line 1700 | public class LinkedBlockingDequeTest ext
1700		* A deserialized serialized deque has same elements in same order
1701		*/
1702		public void testSerialization() throws Exception {
1703	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1704	<
1553	<	ByteArrayOutputStream bout = new ByteArrayOutputStream(10000);
1554	<	ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout));
1555	<	out.writeObject(q);
1556	<	out.close();
1557	<
1558	<	ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray());
1559	<	ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin));
1560	<	LinkedBlockingDeque r = (LinkedBlockingDeque)in.readObject();
1561	<	assertEquals(q.size(), r.size());
1562	<	while (!q.isEmpty())
1563	<	assertEquals(q.remove(), r.remove());
1564	<	}
1565	<
1566	<	/**
1567	<	* drainTo(null) throws NPE
1568	<	*/
1569	<	public void testDrainToNull() {
1570	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1571	<	try {
1572	<	q.drainTo(null);
1573	<	shouldThrow();
1574	<	} catch (NullPointerException success) {}
1575	<	}
1703	>	Queue x = populatedDeque(SIZE);
1704	>	Queue y = serialClone(x);
1705
1706	<	/**
1707	<	* drainTo(this) throws IAE
1708	<	*/
1709	<	public void testDrainToSelf() {
1710	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1711	<	try {
1712	<	q.drainTo(q);
1713	<	shouldThrow();
1714	<	} catch (IllegalArgumentException success) {}
1706	>	assertNotSame(y, x);
1707	>	assertEquals(x.size(), y.size());
1708	>	assertEquals(x.toString(), y.toString());
1709	>	assertTrue(Arrays.equals(x.toArray(), y.toArray()));
1710	>	while (!x.isEmpty()) {
1711	>	assertFalse(y.isEmpty());
1712	>	assertEquals(x.remove(), y.remove());
1713	>	}
1714	>	assertTrue(y.isEmpty());
1715		}
1716
1717		/**
#	Line 1592 | Line 1721 | public class LinkedBlockingDequeTest ext
1721		LinkedBlockingDeque q = populatedDeque(SIZE);
1722		ArrayList l = new ArrayList();
1723		q.drainTo(l);
1724	<	assertEquals(q.size(), 0);
1725	<	assertEquals(l.size(), SIZE);
1724	>	assertEquals(0, q.size());
1725	>	assertEquals(SIZE, l.size());
1726		for (int i = 0; i < SIZE; ++i)
1727		assertEquals(l.get(i), new Integer(i));
1728		q.add(zero);
#	Line 1603 | Line 1732 | public class LinkedBlockingDequeTest ext
1732		assertTrue(q.contains(one));
1733		l.clear();
1734		q.drainTo(l);
1735	<	assertEquals(q.size(), 0);
1736	<	assertEquals(l.size(), 2);
1735	>	assertEquals(0, q.size());
1736	>	assertEquals(2, l.size());
1737		for (int i = 0; i < 2; ++i)
1738		assertEquals(l.get(i), new Integer(i));
1739		}
#	Line 1630 | Line 1759 | public class LinkedBlockingDequeTest ext
1759		}
1760
1761		/**
1762	<	* drainTo(null, n) throws NPE
1634	<	*/
1635	<	public void testDrainToNullN() {
1636	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1637	<	try {
1638	<	q.drainTo(null, 0);
1639	<	shouldThrow();
1640	<	} catch (NullPointerException success) {}
1641	<	}
1642	<
1643	<	/**
1644	<	* drainTo(this, n) throws IAE
1645	<	*/
1646	<	public void testDrainToSelfN() {
1647	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1648	<	try {
1649	<	q.drainTo(q, 0);
1650	<	shouldThrow();
1651	<	} catch (IllegalArgumentException success) {}
1652	<	}
1653	<
1654	<	/**
1655	<	* drainTo(c, n) empties first max {n, size} elements of deque into c
1762	>	* drainTo(c, n) empties first min(n, size) elements of queue into c
1763		*/
1764		public void testDrainToN() {
1765		LinkedBlockingDeque q = new LinkedBlockingDeque();
#	Line 1661 | Line 1768 | public class LinkedBlockingDequeTest ext
1768		assertTrue(q.offer(new Integer(j)));
1769		ArrayList l = new ArrayList();
1770		q.drainTo(l, i);
1771	<	int k = (i < SIZE)? i : SIZE;
1772	<	assertEquals(l.size(), k);
1773	<	assertEquals(q.size(), SIZE-k);
1771	>	int k = (i < SIZE) ? i : SIZE;
1772	>	assertEquals(k, l.size());
1773	>	assertEquals(SIZE-k, q.size());
1774		for (int j = 0; j < k; ++j)
1775		assertEquals(l.get(j), new Integer(j));
1776	<	while (q.poll() != null) ;
1776	>	do {} while (q.poll() != null);
1777	>	}
1778	>	}
1779	>
1780	>	/**
1781	>	* remove(null), contains(null) always return false
1782	>	*/
1783	>	public void testNeverContainsNull() {
1784	>	Deque<?>[] qs = {
1785	>	new LinkedBlockingDeque<Object>(),
1786	>	populatedDeque(2),
1787	>	};
1788	>
1789	>	for (Deque<?> q : qs) {
1790	>	assertFalse(q.contains(null));
1791	>	assertFalse(q.remove(null));
1792	>	assertFalse(q.removeFirstOccurrence(null));
1793	>	assertFalse(q.removeLastOccurrence(null));
1794		}
1795		}
1796

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