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Comparing jsr166/src/test/tck/LinkedBlockingDequeTest.java (file contents):
Revision 1.27 by jsr166, Tue Oct 19 00:43:49 2010 UTC vs.
Revision 1.87 by jsr166, Thu Sep 5 21:39:57 2019 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
#	Line 20 | Line 32 | public class LinkedBlockingDequeTest ext
32
33		public static class Bounded extends BlockingQueueTest {
34		protected BlockingQueue emptyCollection() {
35	<	return new LinkedBlockingDeque(20);
35	>	return new LinkedBlockingDeque(SIZE);
36		}
37		}
38
39		public static void main(String[] args) {
40	<	junit.textui.TestRunner.run(suite());
40	>	main(suite(), args);
41		}
42
43		public static Test suite() {
44	+	class Implementation implements CollectionImplementation {
45	+	public Class<?> klazz() { return LinkedBlockingDeque.class; }
46	+	public Collection emptyCollection() { return new LinkedBlockingDeque(); }
47	+	public Object makeElement(int i) { return i; }
48	+	public boolean isConcurrent() { return true; }
49	+	public boolean permitsNulls() { return false; }
50	+	}
51		return newTestSuite(LinkedBlockingDequeTest.class,
52		new Unbounded().testSuite(),
53	<	new Bounded().testSuite());
53	>	new Bounded().testSuite(),
54	>	CollectionTest.testSuite(new Implementation()));
55		}
56
57		/**
58	<	* Create a deque of given size containing consecutive
59	<	* Integers 0 ... n.
58	>	* Returns a new deque of given size containing consecutive
59	>	* Integers 0 ... n - 1.
60		*/
61	<	private LinkedBlockingDeque populatedDeque(int n) {
62	<	LinkedBlockingDeque q = new LinkedBlockingDeque(n);
61	>	private static LinkedBlockingDeque<Integer> populatedDeque(int n) {
62	>	LinkedBlockingDeque<Integer> q =
63	>	new LinkedBlockingDeque<Integer>(n);
64		assertTrue(q.isEmpty());
65		for (int i = 0; i < n; i++)
66		assertTrue(q.offer(new Integer(i)));
67		assertFalse(q.isEmpty());
68		assertEquals(0, q.remainingCapacity());
69		assertEquals(n, q.size());
70	+	assertEquals((Integer) 0, q.peekFirst());
71	+	assertEquals((Integer) (n - 1), q.peekLast());
72		return q;
73		}
74
#	Line 69 | Line 92 | public class LinkedBlockingDequeTest ext
92		public void testSize() {
93		LinkedBlockingDeque q = populatedDeque(SIZE);
94		for (int i = 0; i < SIZE; ++i) {
95	<	assertEquals(SIZE-i, q.size());
95	>	assertEquals(SIZE - i, q.size());
96		q.removeFirst();
97		}
98		for (int i = 0; i < SIZE; ++i) {
#	Line 79 | Line 102 | public class LinkedBlockingDequeTest ext
102		}
103
104		/**
105	<	* offer(null) throws NPE
105	>	* offerFirst(null) throws NullPointerException
106		*/
107		public void testOfferFirstNull() {
108	+	LinkedBlockingDeque q = new LinkedBlockingDeque();
109		try {
86	–	LinkedBlockingDeque q = new LinkedBlockingDeque();
110		q.offerFirst(null);
111		shouldThrow();
112		} catch (NullPointerException success) {}
113		}
114
115		/**
116	+	* offerLast(null) throws NullPointerException
117	+	*/
118	+	public void testOfferLastNull() {
119	+	LinkedBlockingDeque q = new LinkedBlockingDeque();
120	+	try {
121	+	q.offerLast(null);
122	+	shouldThrow();
123	+	} catch (NullPointerException success) {}
124	+	}
125	+
126	+	/**
127		* OfferFirst succeeds
128		*/
129		public void testOfferFirst() {
#	Line 123 | Line 157 | public class LinkedBlockingDequeTest ext
157		*/
158		public void testPollLast() {
159		LinkedBlockingDeque q = populatedDeque(SIZE);
160	<	for (int i = SIZE-1; i >= 0; --i) {
160	>	for (int i = SIZE - 1; i >= 0; --i) {
161		assertEquals(i, q.pollLast());
162		}
163		assertNull(q.pollLast());
#	Line 162 | Line 196 | public class LinkedBlockingDequeTest ext
196		*/
197		public void testPeekLast() {
198		LinkedBlockingDeque q = populatedDeque(SIZE);
199	<	for (int i = SIZE-1; i >= 0; --i) {
199	>	for (int i = SIZE - 1; i >= 0; --i) {
200		assertEquals(i, q.peekLast());
201		assertEquals(i, q.pollLast());
202		assertTrue(q.peekLast() == null ||
#	Line 192 | Line 226 | public class LinkedBlockingDequeTest ext
226		*/
227		public void testLastElement() {
228		LinkedBlockingDeque q = populatedDeque(SIZE);
229	<	for (int i = SIZE-1; i >= 0; --i) {
229	>	for (int i = SIZE - 1; i >= 0; --i) {
230		assertEquals(i, q.getLast());
231		assertEquals(i, q.pollLast());
232		}
#	Line 252 | Line 286 | public class LinkedBlockingDequeTest ext
286		*/
287		public void testRemoveFirstOccurrence() {
288		LinkedBlockingDeque q = populatedDeque(SIZE);
289	<	for (int i = 1; i < SIZE; i+=2) {
289	>	for (int i = 1; i < SIZE; i += 2) {
290		assertTrue(q.removeFirstOccurrence(new Integer(i)));
291		}
292	<	for (int i = 0; i < SIZE; i+=2) {
292	>	for (int i = 0; i < SIZE; i += 2) {
293		assertTrue(q.removeFirstOccurrence(new Integer(i)));
294	<	assertFalse(q.removeFirstOccurrence(new Integer(i+1)));
294	>	assertFalse(q.removeFirstOccurrence(new Integer(i + 1)));
295		}
296		assertTrue(q.isEmpty());
297		}
#	Line 267 | Line 301 | public class LinkedBlockingDequeTest ext
301		*/
302		public void testRemoveLastOccurrence() {
303		LinkedBlockingDeque q = populatedDeque(SIZE);
304	<	for (int i = 1; i < SIZE; i+=2) {
304	>	for (int i = 1; i < SIZE; i += 2) {
305		assertTrue(q.removeLastOccurrence(new Integer(i)));
306		}
307	<	for (int i = 0; i < SIZE; i+=2) {
307	>	for (int i = 0; i < SIZE; i += 2) {
308		assertTrue(q.removeLastOccurrence(new Integer(i)));
309	<	assertFalse(q.removeLastOccurrence(new Integer(i+1)));
309	>	assertFalse(q.removeLastOccurrence(new Integer(i + 1)));
310		}
311		assertTrue(q.isEmpty());
312		}
#	Line 297 | Line 331 | public class LinkedBlockingDequeTest ext
331		assertSame(four, q.peekLast());
332		}
333
300	–
334		/**
335		* A new deque has the indicated capacity, or Integer.MAX_VALUE if
336		* none given
#	Line 308 | Line 341 | public class LinkedBlockingDequeTest ext
341		}
342
343		/**
344	<	* Constructor throws IAE if capacity argument nonpositive
344	>	* Constructor throws IllegalArgumentException if capacity argument nonpositive
345		*/
346		public void testConstructor2() {
347		try {
348	<	LinkedBlockingDeque q = new LinkedBlockingDeque(0);
348	>	new LinkedBlockingDeque(0);
349		shouldThrow();
350		} catch (IllegalArgumentException success) {}
351		}
352
353		/**
354	<	* Initializing from null Collection throws NPE
354	>	* Initializing from null Collection throws NullPointerException
355		*/
356		public void testConstructor3() {
357		try {
358	<	LinkedBlockingDeque q = new LinkedBlockingDeque(null);
358	>	new LinkedBlockingDeque(null);
359		shouldThrow();
360		} catch (NullPointerException success) {}
361		}
362
363		/**
364	<	* Initializing from Collection of null elements throws NPE
364	>	* Initializing from Collection of null elements throws NullPointerException
365		*/
366		public void testConstructor4() {
367	+	Collection<Integer> elements = Arrays.asList(new Integer[SIZE]);
368		try {
369	<	Integer[] ints = new Integer[SIZE];
336	<	LinkedBlockingDeque q = new LinkedBlockingDeque(Arrays.asList(ints));
369	>	new LinkedBlockingDeque(elements);
370		shouldThrow();
371		} catch (NullPointerException success) {}
372		}
373
374		/**
375	<	* Initializing from Collection with some null elements throws NPE
375	>	* Initializing from Collection with some null elements throws
376	>	* NullPointerException
377		*/
378		public void testConstructor5() {
379	+	Integer[] ints = new Integer[SIZE];
380	+	for (int i = 0; i < SIZE - 1; ++i)
381	+	ints[i] = i;
382	+	Collection<Integer> elements = Arrays.asList(ints);
383		try {
384	<	Integer[] ints = new Integer[SIZE];
347	<	for (int i = 0; i < SIZE-1; ++i)
348	<	ints[i] = new Integer(i);
349	<	LinkedBlockingDeque q = new LinkedBlockingDeque(Arrays.asList(ints));
384	>	new LinkedBlockingDeque(elements);
385		shouldThrow();
386		} catch (NullPointerException success) {}
387		}
#	Line 357 | Line 392 | public class LinkedBlockingDequeTest ext
392		public void testConstructor6() {
393		Integer[] ints = new Integer[SIZE];
394		for (int i = 0; i < SIZE; ++i)
395	<	ints[i] = new Integer(i);
395	>	ints[i] = i;
396		LinkedBlockingDeque q = new LinkedBlockingDeque(Arrays.asList(ints));
397		for (int i = 0; i < SIZE; ++i)
398		assertEquals(ints[i], q.poll());
#	Line 382 | Line 417 | public class LinkedBlockingDequeTest ext
417		* remainingCapacity decreases on add, increases on remove
418		*/
419		public void testRemainingCapacity() {
420	<	LinkedBlockingDeque q = populatedDeque(SIZE);
420	>	BlockingQueue q = populatedDeque(SIZE);
421		for (int i = 0; i < SIZE; ++i) {
422		assertEquals(i, q.remainingCapacity());
423	<	assertEquals(SIZE-i, q.size());
424	<	q.remove();
423	>	assertEquals(SIZE, q.size() + q.remainingCapacity());
424	>	assertEquals(i, q.remove());
425		}
426		for (int i = 0; i < SIZE; ++i) {
427	<	assertEquals(SIZE-i, q.remainingCapacity());
428	<	assertEquals(i, q.size());
429	<	q.add(new Integer(i));
427	>	assertEquals(SIZE - i, q.remainingCapacity());
428	>	assertEquals(SIZE, q.size() + q.remainingCapacity());
429	>	assertTrue(q.add(i));
430		}
431		}
432
433		/**
399	–	* offer(null) throws NPE
400	–	*/
401	–	public void testOfferNull() {
402	–	try {
403	–	LinkedBlockingDeque q = new LinkedBlockingDeque(1);
404	–	q.offer(null);
405	–	shouldThrow();
406	–	} catch (NullPointerException success) {}
407	–	}
408	–
409	–	/**
410	–	* add(null) throws NPE
411	–	*/
412	–	public void testAddNull() {
413	–	try {
414	–	LinkedBlockingDeque q = new LinkedBlockingDeque(1);
415	–	q.add(null);
416	–	shouldThrow();
417	–	} catch (NullPointerException success) {}
418	–	}
419	–
420	–	/**
434		* push(null) throws NPE
435		*/
436		public void testPushNull() {
437	+	LinkedBlockingDeque q = new LinkedBlockingDeque(1);
438		try {
425	–	LinkedBlockingDeque q = new LinkedBlockingDeque(1);
439		q.push(null);
440		shouldThrow();
441		} catch (NullPointerException success) {}
442		}
443
444		/**
445	<	* push succeeds if not full; throws ISE if full
445	>	* push succeeds if not full; throws IllegalStateException if full
446		*/
447		public void testPush() {
448	+	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
449	+	for (int i = 0; i < SIZE; ++i) {
450	+	Integer x = new Integer(i);
451	+	q.push(x);
452	+	assertEquals(x, q.peek());
453	+	}
454	+	assertEquals(0, q.remainingCapacity());
455		try {
436	–	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
437	–	for (int i = 0; i < SIZE; ++i) {
438	–	Integer I = new Integer(i);
439	–	q.push(I);
440	–	assertEquals(I, q.peek());
441	–	}
442	–	assertEquals(0, q.remainingCapacity());
456		q.push(new Integer(SIZE));
457		shouldThrow();
458		} catch (IllegalStateException success) {}
#	Line 455 | Line 468 | public class LinkedBlockingDequeTest ext
468		assertSame(four, q.peekFirst());
469		}
470
458	–
471		/**
472		* pop removes next element, or throws NSEE if empty
473		*/
#	Line 470 | Line 482 | public class LinkedBlockingDequeTest ext
482		} catch (NoSuchElementException success) {}
483		}
484
473	–
485		/**
486		* Offer succeeds if not full; fails if full
487		*/
#	Line 481 | Line 492 | public class LinkedBlockingDequeTest ext
492		}
493
494		/**
495	<	* add succeeds if not full; throws ISE if full
495	>	* add succeeds if not full; throws IllegalStateException if full
496		*/
497		public void testAdd() {
498	+	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
499	+	for (int i = 0; i < SIZE; ++i)
500	+	assertTrue(q.add(new Integer(i)));
501	+	assertEquals(0, q.remainingCapacity());
502		try {
488	–	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
489	–	for (int i = 0; i < SIZE; ++i) {
490	–	assertTrue(q.add(new Integer(i)));
491	–	}
492	–	assertEquals(0, q.remainingCapacity());
503		q.add(new Integer(SIZE));
504		shouldThrow();
505		} catch (IllegalStateException success) {}
506		}
507
508		/**
509	<	* addAll(null) throws NPE
500	<	*/
501	<	public void testAddAll1() {
502	<	try {
503	<	LinkedBlockingDeque q = new LinkedBlockingDeque(1);
504	<	q.addAll(null);
505	<	shouldThrow();
506	<	} catch (NullPointerException success) {}
507	<	}
508	<
509	<	/**
510	<	* addAll(this) throws IAE
509	>	* addAll(this) throws IllegalArgumentException
510		*/
511		public void testAddAllSelf() {
512	+	LinkedBlockingDeque q = populatedDeque(SIZE);
513		try {
514	–	LinkedBlockingDeque q = populatedDeque(SIZE);
514		q.addAll(q);
515		shouldThrow();
516		} catch (IllegalArgumentException success) {}
517		}
518
519		/**
521	–	* addAll of a collection with null elements throws NPE
522	–	*/
523	–	public void testAddAll2() {
524	–	try {
525	–	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
526	–	Integer[] ints = new Integer[SIZE];
527	–	q.addAll(Arrays.asList(ints));
528	–	shouldThrow();
529	–	} catch (NullPointerException success) {}
530	–	}
531	–
532	–	/**
520		* addAll of a collection with any null elements throws NPE after
521		* possibly adding some elements
522		*/
523		public void testAddAll3() {
524	+	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
525	+	Integer[] ints = new Integer[SIZE];
526	+	for (int i = 0; i < SIZE - 1; ++i)
527	+	ints[i] = new Integer(i);
528	+	Collection<Integer> elements = Arrays.asList(ints);
529		try {
530	<	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
539	<	Integer[] ints = new Integer[SIZE];
540	<	for (int i = 0; i < SIZE-1; ++i)
541	<	ints[i] = new Integer(i);
542	<	q.addAll(Arrays.asList(ints));
530	>	q.addAll(elements);
531		shouldThrow();
532		} catch (NullPointerException success) {}
533		}
534
535		/**
536	<	* addAll throws ISE if not enough room
536	>	* addAll throws IllegalStateException if not enough room
537		*/
538		public void testAddAll4() {
539	+	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE - 1);
540	+	Integer[] ints = new Integer[SIZE];
541	+	for (int i = 0; i < SIZE; ++i)
542	+	ints[i] = new Integer(i);
543	+	Collection<Integer> elements = Arrays.asList(ints);
544		try {
545	<	LinkedBlockingDeque q = new LinkedBlockingDeque(1);
553	<	Integer[] ints = new Integer[SIZE];
554	<	for (int i = 0; i < SIZE; ++i)
555	<	ints[i] = new Integer(i);
556	<	q.addAll(Arrays.asList(ints));
545	>	q.addAll(elements);
546		shouldThrow();
547		} catch (IllegalStateException success) {}
548		}
#	Line 573 | Line 562 | public class LinkedBlockingDequeTest ext
562		assertEquals(ints[i], q.poll());
563		}
564
576	–
577	–	/**
578	–	* put(null) throws NPE
579	–	*/
580	–	public void testPutNull() throws InterruptedException {
581	–	try {
582	–	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
583	–	q.put(null);
584	–	shouldThrow();
585	–	} catch (NullPointerException success) {}
586	–	}
587	–
565		/**
566		* all elements successfully put are contained
567		*/
568		public void testPut() throws InterruptedException {
569		LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
570		for (int i = 0; i < SIZE; ++i) {
571	<	Integer I = new Integer(i);
572	<	q.put(I);
573	<	assertTrue(q.contains(I));
571	>	Integer x = new Integer(i);
572	>	q.put(x);
573	>	assertTrue(q.contains(x));
574		}
575		assertEquals(0, q.remainingCapacity());
576		}
#	Line 603 | Line 580 | public class LinkedBlockingDequeTest ext
580		*/
581		public void testBlockingPut() throws InterruptedException {
582		final LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
583	<	Thread t = new Thread(new CheckedRunnable() {
583	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
584	>	Thread t = newStartedThread(new CheckedRunnable() {
585		public void realRun() throws InterruptedException {
586		for (int i = 0; i < SIZE; ++i)
587		q.put(i);
588		assertEquals(SIZE, q.size());
589		assertEquals(0, q.remainingCapacity());
590	+
591	+	Thread.currentThread().interrupt();
592		try {
593		q.put(99);
594		shouldThrow();
595		} catch (InterruptedException success) {}
596	+	assertFalse(Thread.interrupted());
597	+
598	+	pleaseInterrupt.countDown();
599	+	try {
600	+	q.put(99);
601	+	shouldThrow();
602	+	} catch (InterruptedException success) {}
603	+	assertFalse(Thread.interrupted());
604		}});
605
606	<	t.start();
607	<	Thread.sleep(SHORT_DELAY_MS);
606	>	await(pleaseInterrupt);
607	>	if (randomBoolean()) assertThreadBlocks(t, Thread.State.WAITING);
608		t.interrupt();
609	<	t.join();
609	>	awaitTermination(t);
610		assertEquals(SIZE, q.size());
611		assertEquals(0, q.remainingCapacity());
612		}
613
614		/**
615	<	* put blocks waiting for take when full
615	>	* put blocks interruptibly waiting for take when full
616		*/
617		public void testPutWithTake() throws InterruptedException {
618		final int capacity = 2;
619		final LinkedBlockingDeque q = new LinkedBlockingDeque(capacity);
620	<	Thread t = new Thread(new CheckedRunnable() {
620	>	final CountDownLatch pleaseTake = new CountDownLatch(1);
621	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
622	>	Thread t = newStartedThread(new CheckedRunnable() {
623		public void realRun() throws InterruptedException {
624	<	for (int i = 0; i < capacity + 1; i++)
624	>	for (int i = 0; i < capacity; i++)
625		q.put(i);
626	+	pleaseTake.countDown();
627	+	q.put(86);
628	+
629	+	Thread.currentThread().interrupt();
630	+	try {
631	+	q.put(99);
632	+	shouldThrow();
633	+	} catch (InterruptedException success) {}
634	+	assertFalse(Thread.interrupted());
635	+
636	+	pleaseInterrupt.countDown();
637		try {
638		q.put(99);
639		shouldThrow();
640		} catch (InterruptedException success) {}
641	+	assertFalse(Thread.interrupted());
642		}});
643
644	<	t.start();
645	<	Thread.sleep(SHORT_DELAY_MS);
644	<	assertEquals(q.remainingCapacity(), 0);
644	>	await(pleaseTake);
645	>	assertEquals(0, q.remainingCapacity());
646		assertEquals(0, q.take());
647	<	Thread.sleep(SHORT_DELAY_MS);
647	>
648	>	await(pleaseInterrupt);
649	>	if (randomBoolean()) assertThreadBlocks(t, Thread.State.WAITING);
650		t.interrupt();
651	<	t.join();
652	<	assertEquals(q.remainingCapacity(), 0);
651	>	awaitTermination(t);
652	>	assertEquals(0, q.remainingCapacity());
653		}
654
655		/**
656		* timed offer times out if full and elements not taken
657		*/
658	<	public void testTimedOffer() throws InterruptedException {
658	>	public void testTimedOffer() {
659		final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
660	<	Thread t = new Thread(new CheckedRunnable() {
660	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
661	>	Thread t = newStartedThread(new CheckedRunnable() {
662		public void realRun() throws InterruptedException {
663		q.put(new Object());
664		q.put(new Object());
665	<	assertFalse(q.offer(new Object(), SHORT_DELAY_MS, MILLISECONDS));
665	>	long startTime = System.nanoTime();
666	>
667	>	assertFalse(q.offer(new Object(), timeoutMillis(), MILLISECONDS));
668	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
669	>
670	>	Thread.currentThread().interrupt();
671		try {
672	<	q.offer(new Object(), LONG_DELAY_MS, MILLISECONDS);
672	>	q.offer(new Object(), randomTimeout(), randomTimeUnit());
673		shouldThrow();
674		} catch (InterruptedException success) {}
675	+	assertFalse(Thread.interrupted());
676	+
677	+	pleaseInterrupt.countDown();
678	+	try {
679	+	q.offer(new Object(), LONGER_DELAY_MS, MILLISECONDS);
680	+	shouldThrow();
681	+	} catch (InterruptedException success) {}
682	+	assertFalse(Thread.interrupted());
683		}});
684
685	<	t.start();
686	<	Thread.sleep(SMALL_DELAY_MS);
685	>	await(pleaseInterrupt);
686	>	if (randomBoolean()) assertThreadBlocks(t, Thread.State.TIMED_WAITING);
687		t.interrupt();
688	<	t.join();
688	>	awaitTermination(t);
689		}
690
691		/**
#	Line 682 | Line 699 | public class LinkedBlockingDequeTest ext
699		}
700
701		/**
702	<	* take blocks interruptibly when empty
686	<	*/
687	<	public void testTakeFromEmpty() throws InterruptedException {
688	<	final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
689	<	Thread t = new ThreadShouldThrow(InterruptedException.class) {
690	<	public void realRun() throws InterruptedException {
691	<	q.take();
692	<	}};
693	<
694	<	t.start();
695	<	Thread.sleep(SHORT_DELAY_MS);
696	<	t.interrupt();
697	<	t.join();
698	<	}
699	<
700	<	/**
701	<	* Take removes existing elements until empty, then blocks interruptibly
702	>	* take removes existing elements until empty, then blocks interruptibly
703		*/
704		public void testBlockingTake() throws InterruptedException {
705		final LinkedBlockingDeque q = populatedDeque(SIZE);
706	<	Thread t = new Thread(new CheckedRunnable() {
706	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
707	>	Thread t = newStartedThread(new CheckedRunnable() {
708		public void realRun() throws InterruptedException {
709	<	for (int i = 0; i < SIZE; ++i) {
710	<	assertEquals(i, q.take());
711	<	}
709	>	for (int i = 0; i < SIZE; i++) assertEquals(i, q.take());
710	>
711	>	Thread.currentThread().interrupt();
712		try {
713		q.take();
714		shouldThrow();
715		} catch (InterruptedException success) {}
716	+	assertFalse(Thread.interrupted());
717	+
718	+	pleaseInterrupt.countDown();
719	+	try {
720	+	q.take();
721	+	shouldThrow();
722	+	} catch (InterruptedException success) {}
723	+	assertFalse(Thread.interrupted());
724		}});
725
726	<	t.start();
727	<	Thread.sleep(SHORT_DELAY_MS);
726	>	await(pleaseInterrupt);
727	>	if (randomBoolean()) assertThreadBlocks(t, Thread.State.WAITING);
728		t.interrupt();
729	<	t.join();
729	>	awaitTermination(t);
730		}
731
722	–
732		/**
733		* poll succeeds unless empty
734		*/
#	Line 748 | Line 757 | public class LinkedBlockingDequeTest ext
757		public void testTimedPoll() throws InterruptedException {
758		LinkedBlockingDeque q = populatedDeque(SIZE);
759		for (int i = 0; i < SIZE; ++i) {
760	<	assertEquals(i, q.poll(SHORT_DELAY_MS, MILLISECONDS));
761	<	}
762	<	assertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS));
760	>	long startTime = System.nanoTime();
761	>	assertEquals(i, q.poll(LONG_DELAY_MS, MILLISECONDS));
762	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
763	>	}
764	>	long startTime = System.nanoTime();
765	>	assertNull(q.poll(timeoutMillis(), MILLISECONDS));
766	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
767	>	checkEmpty(q);
768		}
769
770		/**
#	Line 758 | Line 772 | public class LinkedBlockingDequeTest ext
772		* returning timeout status
773		*/
774		public void testInterruptedTimedPoll() throws InterruptedException {
775	<	Thread t = new Thread(new CheckedRunnable() {
775	>	final BlockingQueue<Integer> q = populatedDeque(SIZE);
776	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
777	>	Thread t = newStartedThread(new CheckedRunnable() {
778		public void realRun() throws InterruptedException {
779	<	LinkedBlockingDeque q = populatedDeque(SIZE);
780	<	for (int i = 0; i < SIZE; ++i) {
781	<	assertEquals(i, q.poll(SHORT_DELAY_MS, MILLISECONDS));
782	<	}
779	>	for (int i = 0; i < SIZE; i++)
780	>	assertEquals(i, (int) q.poll(LONG_DELAY_MS, MILLISECONDS));
781	>
782	>	Thread.currentThread().interrupt();
783		try {
784	<	q.poll(SMALL_DELAY_MS, MILLISECONDS);
784	>	q.poll(randomTimeout(), randomTimeUnit());
785		shouldThrow();
786		} catch (InterruptedException success) {}
787	+	assertFalse(Thread.interrupted());
788	+
789	+	pleaseInterrupt.countDown();
790	+	try {
791	+	q.poll(LONGER_DELAY_MS, MILLISECONDS);
792	+	shouldThrow();
793	+	} catch (InterruptedException success) {}
794	+	assertFalse(Thread.interrupted());
795		}});
796
797	<	t.start();
798	<	Thread.sleep(SHORT_DELAY_MS);
797	>	await(pleaseInterrupt);
798	>	if (randomBoolean()) assertThreadBlocks(t, Thread.State.TIMED_WAITING);
799		t.interrupt();
800	<	t.join();
800	>	awaitTermination(t);
801	>	checkEmpty(q);
802		}
803
804		/**
805		* putFirst(null) throws NPE
806		*/
807	<	public void testPutFirstNull() throws InterruptedException {
807	>	public void testPutFirstNull() throws InterruptedException {
808	>	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
809		try {
784	–	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
810		q.putFirst(null);
811		shouldThrow();
812		} catch (NullPointerException success) {}
813	<	}
813	>	}
814
815		/**
816		* all elements successfully putFirst are contained
817		*/
818	<	public void testPutFirst() throws InterruptedException {
819	<	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
820	<	for (int i = 0; i < SIZE; ++i) {
821	<	Integer I = new Integer(i);
822	<	q.putFirst(I);
823	<	assertTrue(q.contains(I));
824	<	}
825	<	assertEquals(0, q.remainingCapacity());
818	>	public void testPutFirst() throws InterruptedException {
819	>	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
820	>	for (int i = 0; i < SIZE; ++i) {
821	>	Integer x = new Integer(i);
822	>	q.putFirst(x);
823	>	assertTrue(q.contains(x));
824	>	}
825	>	assertEquals(0, q.remainingCapacity());
826		}
827
828		/**
#	Line 805 | Line 830 | public class LinkedBlockingDequeTest ext
830		*/
831		public void testBlockingPutFirst() throws InterruptedException {
832		final LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
833	<	Thread t = new Thread(new CheckedRunnable() {
833	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
834	>	Thread t = newStartedThread(new CheckedRunnable() {
835		public void realRun() throws InterruptedException {
836		for (int i = 0; i < SIZE; ++i)
837		q.putFirst(i);
838		assertEquals(SIZE, q.size());
839		assertEquals(0, q.remainingCapacity());
840	+
841	+	Thread.currentThread().interrupt();
842		try {
843		q.putFirst(99);
844		shouldThrow();
845		} catch (InterruptedException success) {}
846	+	assertFalse(Thread.interrupted());
847	+
848	+	pleaseInterrupt.countDown();
849	+	try {
850	+	q.putFirst(99);
851	+	shouldThrow();
852	+	} catch (InterruptedException success) {}
853	+	assertFalse(Thread.interrupted());
854		}});
855
856	<	t.start();
857	<	Thread.sleep(SHORT_DELAY_MS);
856	>	await(pleaseInterrupt);
857	>	if (randomBoolean()) assertThreadBlocks(t, Thread.State.WAITING);
858		t.interrupt();
859	<	t.join();
859	>	awaitTermination(t);
860		assertEquals(SIZE, q.size());
861		assertEquals(0, q.remainingCapacity());
862		}
863
864		/**
865	<	* putFirst blocks waiting for take when full
865	>	* putFirst blocks interruptibly waiting for take when full
866		*/
867		public void testPutFirstWithTake() throws InterruptedException {
868		final int capacity = 2;
869		final LinkedBlockingDeque q = new LinkedBlockingDeque(capacity);
870	<	Thread t = new Thread(new CheckedRunnable() {
870	>	final CountDownLatch pleaseTake = new CountDownLatch(1);
871	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
872	>	Thread t = newStartedThread(new CheckedRunnable() {
873		public void realRun() throws InterruptedException {
874	<	for (int i = 0; i < capacity + 1; i++)
874	>	for (int i = 0; i < capacity; i++)
875		q.putFirst(i);
876	+	pleaseTake.countDown();
877	+	q.putFirst(86);
878	+
879	+	pleaseInterrupt.countDown();
880		try {
881		q.putFirst(99);
882		shouldThrow();
883		} catch (InterruptedException success) {}
884	+	assertFalse(Thread.interrupted());
885		}});
886
887	<	t.start();
888	<	Thread.sleep(SHORT_DELAY_MS);
846	<	assertEquals(q.remainingCapacity(), 0);
887	>	await(pleaseTake);
888	>	assertEquals(0, q.remainingCapacity());
889		assertEquals(capacity - 1, q.take());
890	<	Thread.sleep(SHORT_DELAY_MS);
890	>
891	>	await(pleaseInterrupt);
892	>	if (randomBoolean()) assertThreadBlocks(t, Thread.State.WAITING);
893		t.interrupt();
894	<	t.join();
895	<	assertEquals(q.remainingCapacity(), 0);
894	>	awaitTermination(t);
895	>	assertEquals(0, q.remainingCapacity());
896		}
897
898		/**
899		* timed offerFirst times out if full and elements not taken
900		*/
901	<	public void testTimedOfferFirst() throws InterruptedException {
901	>	public void testTimedOfferFirst() {
902		final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
903	<	Thread t = new Thread(new CheckedRunnable() {
903	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
904	>	Thread t = newStartedThread(new CheckedRunnable() {
905		public void realRun() throws InterruptedException {
906		q.putFirst(new Object());
907		q.putFirst(new Object());
908	<	assertFalse(q.offerFirst(new Object(), SHORT_DELAY_MS, MILLISECONDS));
908	>	long startTime = System.nanoTime();
909	>
910	>	assertFalse(q.offerFirst(new Object(), timeoutMillis(), MILLISECONDS));
911	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
912	>
913	>	Thread.currentThread().interrupt();
914		try {
915	<	q.offerFirst(new Object(), LONG_DELAY_MS, MILLISECONDS);
915	>	q.offerFirst(new Object(), randomTimeout(), randomTimeUnit());
916		shouldThrow();
917		} catch (InterruptedException success) {}
918	+	assertFalse(Thread.interrupted());
919	+
920	+	pleaseInterrupt.countDown();
921	+	try {
922	+	q.offerFirst(new Object(), LONGER_DELAY_MS, MILLISECONDS);
923	+	shouldThrow();
924	+	} catch (InterruptedException success) {}
925	+	assertFalse(Thread.interrupted());
926		}});
927
928	<	t.start();
929	<	Thread.sleep(SMALL_DELAY_MS);
928	>	await(pleaseInterrupt);
929	>	if (randomBoolean()) assertThreadBlocks(t, Thread.State.TIMED_WAITING);
930		t.interrupt();
931	<	t.join();
931	>	awaitTermination(t);
932		}
933
934		/**
#	Line 884 | Line 942 | public class LinkedBlockingDequeTest ext
942		}
943
944		/**
945	<	* takeFirst blocks interruptibly when empty
945	>	* takeFirst() blocks interruptibly when empty
946		*/
947	<	public void testTakeFirstFromEmpty() throws InterruptedException {
948	<	final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
949	<	Thread t = new ThreadShouldThrow(InterruptedException.class) {
950	<	public void realRun() throws InterruptedException {
951	<	q.takeFirst();
952	<	}};
947	>	public void testTakeFirstFromEmptyBlocksInterruptibly() {
948	>	final BlockingDeque q = new LinkedBlockingDeque();
949	>	final CountDownLatch threadStarted = new CountDownLatch(1);
950	>	Thread t = newStartedThread(new CheckedRunnable() {
951	>	public void realRun() {
952	>	threadStarted.countDown();
953	>	try {
954	>	q.takeFirst();
955	>	shouldThrow();
956	>	} catch (InterruptedException success) {}
957	>	assertFalse(Thread.interrupted());
958	>	}});
959
960	<	t.start();
961	<	Thread.sleep(SHORT_DELAY_MS);
960	>	await(threadStarted);
961	>	if (randomBoolean()) assertThreadBlocks(t, Thread.State.WAITING);
962		t.interrupt();
963	<	t.join();
963	>	awaitTermination(t);
964		}
965
966		/**
967	<	* TakeFirst removes existing elements until empty, then blocks interruptibly
967	>	* takeFirst() throws InterruptedException immediately if interrupted
968	>	* before waiting
969	>	*/
970	>	public void testTakeFirstFromEmptyAfterInterrupt() {
971	>	final BlockingDeque q = new LinkedBlockingDeque();
972	>	Thread t = newStartedThread(new CheckedRunnable() {
973	>	public void realRun() {
974	>	Thread.currentThread().interrupt();
975	>	try {
976	>	q.takeFirst();
977	>	shouldThrow();
978	>	} catch (InterruptedException success) {}
979	>	assertFalse(Thread.interrupted());
980	>	}});
981	>
982	>	awaitTermination(t);
983	>	}
984	>
985	>	/**
986	>	* takeLast() blocks interruptibly when empty
987	>	*/
988	>	public void testTakeLastFromEmptyBlocksInterruptibly() {
989	>	final BlockingDeque q = new LinkedBlockingDeque();
990	>	final CountDownLatch threadStarted = new CountDownLatch(1);
991	>	Thread t = newStartedThread(new CheckedRunnable() {
992	>	public void realRun() {
993	>	threadStarted.countDown();
994	>	try {
995	>	q.takeLast();
996	>	shouldThrow();
997	>	} catch (InterruptedException success) {}
998	>	assertFalse(Thread.interrupted());
999	>	}});
1000	>
1001	>	await(threadStarted);
1002	>	if (randomBoolean()) assertThreadBlocks(t, Thread.State.WAITING);
1003	>	t.interrupt();
1004	>	awaitTermination(t);
1005	>	}
1006	>
1007	>	/**
1008	>	* takeLast() throws InterruptedException immediately if interrupted
1009	>	* before waiting
1010	>	*/
1011	>	public void testTakeLastFromEmptyAfterInterrupt() {
1012	>	final BlockingDeque q = new LinkedBlockingDeque();
1013	>	Thread t = newStartedThread(new CheckedRunnable() {
1014	>	public void realRun() {
1015	>	Thread.currentThread().interrupt();
1016	>	try {
1017	>	q.takeLast();
1018	>	shouldThrow();
1019	>	} catch (InterruptedException success) {}
1020	>	assertFalse(Thread.interrupted());
1021	>	}});
1022	>
1023	>	awaitTermination(t);
1024	>	}
1025	>
1026	>	/**
1027	>	* takeFirst removes existing elements until empty, then blocks interruptibly
1028		*/
1029		public void testBlockingTakeFirst() throws InterruptedException {
1030		final LinkedBlockingDeque q = populatedDeque(SIZE);
1031	<	Thread t = new Thread(new CheckedRunnable() {
1031	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
1032	>	Thread t = newStartedThread(new CheckedRunnable() {
1033		public void realRun() throws InterruptedException {
1034	<	for (int i = 0; i < SIZE; ++i)
1035	<	assertEquals(i, q.takeFirst());
1034	>	for (int i = 0; i < SIZE; i++) assertEquals(i, q.takeFirst());
1035	>
1036	>	Thread.currentThread().interrupt();
1037		try {
1038		q.takeFirst();
1039		shouldThrow();
1040		} catch (InterruptedException success) {}
1041	+	assertFalse(Thread.interrupted());
1042	+
1043	+	pleaseInterrupt.countDown();
1044	+	try {
1045	+	q.takeFirst();
1046	+	shouldThrow();
1047	+	} catch (InterruptedException success) {}
1048	+	assertFalse(Thread.interrupted());
1049		}});
1050
1051	<	t.start();
1052	<	Thread.sleep(SHORT_DELAY_MS);
1051	>	await(pleaseInterrupt);
1052	>	if (randomBoolean()) assertThreadBlocks(t, Thread.State.WAITING);
1053		t.interrupt();
1054	<	t.join();
1054	>	awaitTermination(t);
1055		}
1056
923	–
1057		/**
1058		* timed pollFirst with zero timeout succeeds when non-empty, else times out
1059		*/
#	Line 938 | Line 1071 | public class LinkedBlockingDequeTest ext
1071		public void testTimedPollFirst() throws InterruptedException {
1072		LinkedBlockingDeque q = populatedDeque(SIZE);
1073		for (int i = 0; i < SIZE; ++i) {
1074	<	assertEquals(i, q.pollFirst(SHORT_DELAY_MS, MILLISECONDS));
1075	<	}
1076	<	assertNull(q.pollFirst(SHORT_DELAY_MS, MILLISECONDS));
1074	>	long startTime = System.nanoTime();
1075	>	assertEquals(i, q.pollFirst(LONG_DELAY_MS, MILLISECONDS));
1076	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1077	>	}
1078	>	long startTime = System.nanoTime();
1079	>	assertNull(q.pollFirst(timeoutMillis(), MILLISECONDS));
1080	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
1081	>	checkEmpty(q);
1082		}
1083
1084		/**
#	Line 948 | Line 1086 | public class LinkedBlockingDequeTest ext
1086		* returning timeout status
1087		*/
1088		public void testInterruptedTimedPollFirst() throws InterruptedException {
1089	<	Thread t = new Thread(new CheckedRunnable() {
1089	>	final LinkedBlockingDeque q = populatedDeque(SIZE);
1090	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
1091	>	Thread t = newStartedThread(new CheckedRunnable() {
1092		public void realRun() throws InterruptedException {
1093	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1094	<	for (int i = 0; i < SIZE; ++i) {
1095	<	assertEquals(i, q.pollFirst(SHORT_DELAY_MS, MILLISECONDS));
1096	<	}
1093	>	for (int i = 0; i < SIZE; i++)
1094	>	assertEquals(i, q.pollFirst(LONG_DELAY_MS, MILLISECONDS));
1095	>
1096	>	Thread.currentThread().interrupt();
1097		try {
1098	<	q.pollFirst(SMALL_DELAY_MS, MILLISECONDS);
1098	>	q.pollFirst(randomTimeout(), randomTimeUnit());
1099		shouldThrow();
1100		} catch (InterruptedException success) {}
1101	+	assertFalse(Thread.interrupted());
1102	+
1103	+	pleaseInterrupt.countDown();
1104	+	try {
1105	+	q.pollFirst(LONGER_DELAY_MS, MILLISECONDS);
1106	+	shouldThrow();
1107	+	} catch (InterruptedException success) {}
1108	+	assertFalse(Thread.interrupted());
1109		}});
1110
1111	<	t.start();
1112	<	Thread.sleep(SHORT_DELAY_MS);
1111	>	await(pleaseInterrupt);
1112	>	if (randomBoolean()) assertThreadBlocks(t, Thread.State.TIMED_WAITING);
1113		t.interrupt();
1114	<	t.join();
1114	>	awaitTermination(t);
1115		}
1116
1117		/**
#	Line 972 | Line 1120 | public class LinkedBlockingDequeTest ext
1120		*/
1121		public void testTimedPollFirstWithOfferFirst() throws InterruptedException {
1122		final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
1123	<	Thread t = new Thread(new CheckedRunnable() {
1123	>	final CheckedBarrier barrier = new CheckedBarrier(2);
1124	>	Thread t = newStartedThread(new CheckedRunnable() {
1125		public void realRun() throws InterruptedException {
1126	<	assertNull(q.pollFirst(SHORT_DELAY_MS, MILLISECONDS));
1126	>	long startTime = System.nanoTime();
1127	>	assertNull(q.pollFirst(timeoutMillis(), MILLISECONDS));
1128	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
1129	>
1130	>	barrier.await();
1131	>
1132		assertSame(zero, q.pollFirst(LONG_DELAY_MS, MILLISECONDS));
1133	+
1134	+	Thread.currentThread().interrupt();
1135	+	try {
1136	+	q.pollFirst(randomTimeout(), randomTimeUnit());
1137	+	shouldThrow();
1138	+	} catch (InterruptedException success) {}
1139	+
1140	+	barrier.await();
1141		try {
1142		q.pollFirst(LONG_DELAY_MS, MILLISECONDS);
1143		shouldThrow();
1144		} catch (InterruptedException success) {}
1145	+	assertFalse(Thread.interrupted());
1146	+
1147	+	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1148		}});
1149
1150	<	t.start();
1151	<	Thread.sleep(SMALL_DELAY_MS);
1152	<	assertTrue(q.offerFirst(zero, SHORT_DELAY_MS, MILLISECONDS));
1150	>	barrier.await();
1151	>	long startTime = System.nanoTime();
1152	>	assertTrue(q.offerFirst(zero, LONG_DELAY_MS, MILLISECONDS));
1153	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1154	>	barrier.await();
1155	>	if (randomBoolean()) assertThreadBlocks(t, Thread.State.TIMED_WAITING);
1156		t.interrupt();
1157	<	t.join();
1157	>	awaitTermination(t);
1158		}
1159
1160		/**
1161		* putLast(null) throws NPE
1162		*/
1163	<	public void testPutLastNull() throws InterruptedException {
1163	>	public void testPutLastNull() throws InterruptedException {
1164	>	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
1165		try {
997	–	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
1166		q.putLast(null);
1167		shouldThrow();
1168		} catch (NullPointerException success) {}
1169	<	}
1169	>	}
1170
1171		/**
1172		* all elements successfully putLast are contained
1173		*/
1174	<	public void testPutLast() throws InterruptedException {
1175	<	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
1176	<	for (int i = 0; i < SIZE; ++i) {
1177	<	Integer I = new Integer(i);
1178	<	q.putLast(I);
1179	<	assertTrue(q.contains(I));
1180	<	}
1181	<	assertEquals(0, q.remainingCapacity());
1174	>	public void testPutLast() throws InterruptedException {
1175	>	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
1176	>	for (int i = 0; i < SIZE; ++i) {
1177	>	Integer x = new Integer(i);
1178	>	q.putLast(x);
1179	>	assertTrue(q.contains(x));
1180	>	}
1181	>	assertEquals(0, q.remainingCapacity());
1182		}
1183
1184		/**
#	Line 1018 | Line 1186 | public class LinkedBlockingDequeTest ext
1186		*/
1187		public void testBlockingPutLast() throws InterruptedException {
1188		final LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
1189	<	Thread t = new Thread(new CheckedRunnable() {
1189	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
1190	>	Thread t = newStartedThread(new CheckedRunnable() {
1191		public void realRun() throws InterruptedException {
1192		for (int i = 0; i < SIZE; ++i)
1193		q.putLast(i);
1194		assertEquals(SIZE, q.size());
1195		assertEquals(0, q.remainingCapacity());
1196	+
1197	+	Thread.currentThread().interrupt();
1198		try {
1199		q.putLast(99);
1200		shouldThrow();
1201		} catch (InterruptedException success) {}
1202	+	assertFalse(Thread.interrupted());
1203	+
1204	+	pleaseInterrupt.countDown();
1205	+	try {
1206	+	q.putLast(99);
1207	+	shouldThrow();
1208	+	} catch (InterruptedException success) {}
1209	+	assertFalse(Thread.interrupted());
1210		}});
1211
1212	<	t.start();
1213	<	Thread.sleep(SHORT_DELAY_MS);
1212	>	await(pleaseInterrupt);
1213	>	if (randomBoolean()) assertThreadBlocks(t, Thread.State.WAITING);
1214		t.interrupt();
1215	<	t.join();
1215	>	awaitTermination(t);
1216		assertEquals(SIZE, q.size());
1217		assertEquals(0, q.remainingCapacity());
1218		}
1219
1220		/**
1221	<	* putLast blocks waiting for take when full
1221	>	* putLast blocks interruptibly waiting for take when full
1222		*/
1223		public void testPutLastWithTake() throws InterruptedException {
1224		final int capacity = 2;
1225		final LinkedBlockingDeque q = new LinkedBlockingDeque(capacity);
1226	<	Thread t = new Thread(new CheckedRunnable() {
1226	>	final CountDownLatch pleaseTake = new CountDownLatch(1);
1227	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
1228	>	Thread t = newStartedThread(new CheckedRunnable() {
1229		public void realRun() throws InterruptedException {
1230	<	for (int i = 0; i < capacity + 1; i++)
1230	>	for (int i = 0; i < capacity; i++)
1231		q.putLast(i);
1232	+	pleaseTake.countDown();
1233	+	q.putLast(86);
1234	+
1235	+	Thread.currentThread().interrupt();
1236		try {
1237		q.putLast(99);
1238		shouldThrow();
1239		} catch (InterruptedException success) {}
1240	+	assertFalse(Thread.interrupted());
1241	+
1242	+	pleaseInterrupt.countDown();
1243	+	try {
1244	+	q.putLast(99);
1245	+	shouldThrow();
1246	+	} catch (InterruptedException success) {}
1247	+	assertFalse(Thread.interrupted());
1248		}});
1249
1250	<	t.start();
1251	<	Thread.sleep(SHORT_DELAY_MS);
1059	<	assertEquals(q.remainingCapacity(), 0);
1250	>	await(pleaseTake);
1251	>	assertEquals(0, q.remainingCapacity());
1252		assertEquals(0, q.take());
1253	<	Thread.sleep(SHORT_DELAY_MS);
1253	>
1254	>	await(pleaseInterrupt);
1255	>	if (randomBoolean()) assertThreadBlocks(t, Thread.State.WAITING);
1256		t.interrupt();
1257	<	t.join();
1258	<	assertEquals(q.remainingCapacity(), 0);
1257	>	awaitTermination(t);
1258	>	assertEquals(0, q.remainingCapacity());
1259		}
1260
1261		/**
1262		* timed offerLast times out if full and elements not taken
1263		*/
1264	<	public void testTimedOfferLast() throws InterruptedException {
1264	>	public void testTimedOfferLast() {
1265		final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
1266	<	Thread t = new Thread(new CheckedRunnable() {
1266	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
1267	>	Thread t = newStartedThread(new CheckedRunnable() {
1268		public void realRun() throws InterruptedException {
1269		q.putLast(new Object());
1270		q.putLast(new Object());
1271	<	assertFalse(q.offerLast(new Object(), SHORT_DELAY_MS, MILLISECONDS));
1271	>	long startTime = System.nanoTime();
1272	>
1273	>	assertFalse(q.offerLast(new Object(), timeoutMillis(), MILLISECONDS));
1274	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
1275	>
1276	>	Thread.currentThread().interrupt();
1277	>	try {
1278	>	q.offerLast(new Object(), randomTimeout(), randomTimeUnit());
1279	>	shouldThrow();
1280	>	} catch (InterruptedException success) {}
1281	>
1282	>	pleaseInterrupt.countDown();
1283		try {
1284	<	q.offerLast(new Object(), LONG_DELAY_MS, MILLISECONDS);
1284	>	q.offerLast(new Object(), LONGER_DELAY_MS, MILLISECONDS);
1285		shouldThrow();
1286		} catch (InterruptedException success) {}
1287		}});
1288
1289	<	t.start();
1290	<	Thread.sleep(SMALL_DELAY_MS);
1289	>	await(pleaseInterrupt);
1290	>	if (randomBoolean()) assertThreadBlocks(t, Thread.State.TIMED_WAITING);
1291		t.interrupt();
1292	<	t.join();
1292	>	awaitTermination(t);
1293		}
1294
1295		/**
#	Line 1092 | Line 1298 | public class LinkedBlockingDequeTest ext
1298		public void testTakeLast() throws InterruptedException {
1299		LinkedBlockingDeque q = populatedDeque(SIZE);
1300		for (int i = 0; i < SIZE; ++i) {
1301	<	assertEquals(SIZE-i-1, q.takeLast());
1301	>	assertEquals(SIZE - i - 1, q.takeLast());
1302		}
1303		}
1304
1305		/**
1306	<	* takeLast blocks interruptibly when empty
1101	<	*/
1102	<	public void testTakeLastFromEmpty() throws InterruptedException {
1103	<	final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
1104	<	Thread t = new ThreadShouldThrow(InterruptedException.class) {
1105	<	public void realRun() throws InterruptedException {
1106	<	q.takeLast();
1107	<	}};
1108	<
1109	<	t.start();
1110	<	Thread.sleep(SHORT_DELAY_MS);
1111	<	t.interrupt();
1112	<	t.join();
1113	<	}
1114	<
1115	<	/**
1116	<	* TakeLast removes existing elements until empty, then blocks interruptibly
1306	>	* takeLast removes existing elements until empty, then blocks interruptibly
1307		*/
1308		public void testBlockingTakeLast() throws InterruptedException {
1309		final LinkedBlockingDeque q = populatedDeque(SIZE);
1310	<	Thread t = new Thread(new CheckedRunnable() {
1310	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
1311	>	Thread t = newStartedThread(new CheckedRunnable() {
1312		public void realRun() throws InterruptedException {
1313	<	for (int i = 0; i < SIZE; ++i)
1314	<	assertEquals(SIZE - 1 - i, q.takeLast());
1313	>	for (int i = 0; i < SIZE; i++)
1314	>	assertEquals(SIZE - i - 1, q.takeLast());
1315	>
1316	>	Thread.currentThread().interrupt();
1317		try {
1318		q.takeLast();
1319		shouldThrow();
1320		} catch (InterruptedException success) {}
1321	+	assertFalse(Thread.interrupted());
1322	+
1323	+	pleaseInterrupt.countDown();
1324	+	try {
1325	+	q.takeLast();
1326	+	shouldThrow();
1327	+	} catch (InterruptedException success) {}
1328	+	assertFalse(Thread.interrupted());
1329		}});
1330
1331	<	t.start();
1332	<	Thread.sleep(SHORT_DELAY_MS);
1331	>	await(pleaseInterrupt);
1332	>	if (randomBoolean()) assertThreadBlocks(t, Thread.State.WAITING);
1333		t.interrupt();
1334	<	t.join();
1334	>	awaitTermination(t);
1335		}
1336
1337		/**
#	Line 1139 | Line 1340 | public class LinkedBlockingDequeTest ext
1340		public void testTimedPollLast0() throws InterruptedException {
1341		LinkedBlockingDeque q = populatedDeque(SIZE);
1342		for (int i = 0; i < SIZE; ++i) {
1343	<	assertEquals(SIZE-i-1, q.pollLast(0, MILLISECONDS));
1343	>	assertEquals(SIZE - i - 1, q.pollLast(0, MILLISECONDS));
1344		}
1345		assertNull(q.pollLast(0, MILLISECONDS));
1346		}
#	Line 1150 | Line 1351 | public class LinkedBlockingDequeTest ext
1351		public void testTimedPollLast() throws InterruptedException {
1352		LinkedBlockingDeque q = populatedDeque(SIZE);
1353		for (int i = 0; i < SIZE; ++i) {
1354	<	assertEquals(SIZE-i-1, q.pollLast(SHORT_DELAY_MS, MILLISECONDS));
1355	<	}
1356	<	assertNull(q.pollLast(SHORT_DELAY_MS, MILLISECONDS));
1354	>	long startTime = System.nanoTime();
1355	>	assertEquals(SIZE - i - 1, q.pollLast(LONG_DELAY_MS, MILLISECONDS));
1356	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1357	>	}
1358	>	long startTime = System.nanoTime();
1359	>	assertNull(q.pollLast(timeoutMillis(), MILLISECONDS));
1360	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
1361	>	checkEmpty(q);
1362		}
1363
1364		/**
#	Line 1160 | Line 1366 | public class LinkedBlockingDequeTest ext
1366		* returning timeout status
1367		*/
1368		public void testInterruptedTimedPollLast() throws InterruptedException {
1369	<	Thread t = new Thread(new CheckedRunnable() {
1369	>	final LinkedBlockingDeque q = populatedDeque(SIZE);
1370	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
1371	>	Thread t = newStartedThread(new CheckedRunnable() {
1372		public void realRun() throws InterruptedException {
1373	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1374	<	for (int i = 0; i < SIZE; ++i) {
1375	<	assertEquals(SIZE-i-1, q.pollLast(SHORT_DELAY_MS, MILLISECONDS));
1376	<	}
1373	>	for (int i = 0; i < SIZE; i++)
1374	>	assertEquals(SIZE - i - 1,
1375	>	q.pollLast(LONG_DELAY_MS, MILLISECONDS));
1376	>
1377	>	Thread.currentThread().interrupt();
1378	>	try {
1379	>	q.pollLast(randomTimeout(), randomTimeUnit());
1380	>	shouldThrow();
1381	>	} catch (InterruptedException success) {}
1382	>	assertFalse(Thread.interrupted());
1383	>
1384	>	pleaseInterrupt.countDown();
1385		try {
1386	<	q.pollLast(SMALL_DELAY_MS, MILLISECONDS);
1386	>	q.pollLast(LONGER_DELAY_MS, MILLISECONDS);
1387		shouldThrow();
1388		} catch (InterruptedException success) {}
1389	+	assertFalse(Thread.interrupted());
1390		}});
1391
1392	<	t.start();
1393	<	Thread.sleep(SHORT_DELAY_MS);
1392	>	await(pleaseInterrupt);
1393	>	if (randomBoolean()) assertThreadBlocks(t, Thread.State.TIMED_WAITING);
1394		t.interrupt();
1395	<	t.join();
1395	>	awaitTermination(t);
1396	>	checkEmpty(q);
1397		}
1398
1399		/**
#	Line 1184 | Line 1402 | public class LinkedBlockingDequeTest ext
1402		*/
1403		public void testTimedPollWithOfferLast() throws InterruptedException {
1404		final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
1405	<	Thread t = new Thread(new CheckedRunnable() {
1405	>	final CheckedBarrier barrier = new CheckedBarrier(2);
1406	>	Thread t = newStartedThread(new CheckedRunnable() {
1407		public void realRun() throws InterruptedException {
1408	<	assertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS));
1408	>	long startTime = System.nanoTime();
1409	>	assertNull(q.poll(timeoutMillis(), MILLISECONDS));
1410	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
1411	>
1412	>	barrier.await();
1413	>
1414		assertSame(zero, q.poll(LONG_DELAY_MS, MILLISECONDS));
1415	+
1416	+	Thread.currentThread().interrupt();
1417	+	try {
1418	+	q.poll(randomTimeout(), randomTimeUnit());
1419	+	shouldThrow();
1420	+	} catch (InterruptedException success) {}
1421	+	assertFalse(Thread.interrupted());
1422	+
1423	+	barrier.await();
1424		try {
1425		q.poll(LONG_DELAY_MS, MILLISECONDS);
1426		shouldThrow();
1427		} catch (InterruptedException success) {}
1428	+	assertFalse(Thread.interrupted());
1429	+
1430	+	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1431		}});
1432
1433	<	t.start();
1434	<	Thread.sleep(SMALL_DELAY_MS);
1435	<	assertTrue(q.offerLast(zero, SHORT_DELAY_MS, MILLISECONDS));
1433	>	barrier.await();
1434	>	long startTime = System.nanoTime();
1435	>	assertTrue(q.offerLast(zero, LONG_DELAY_MS, MILLISECONDS));
1436	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1437	>
1438	>	barrier.await();
1439	>	if (randomBoolean()) assertThreadBlocks(t, Thread.State.TIMED_WAITING);
1440		t.interrupt();
1441	<	t.join();
1441	>	awaitTermination(t);
1442		}
1443
1204	–
1444		/**
1445		* element returns next element, or throws NSEE if empty
1446		*/
#	Line 1218 | Line 1457 | public class LinkedBlockingDequeTest ext
1457		}
1458
1459		/**
1221	–	* remove(x) removes x and returns true if present
1222	–	*/
1223	–	public void testRemoveElement() {
1224	–	LinkedBlockingDeque q = populatedDeque(SIZE);
1225	–	for (int i = 1; i < SIZE; i+=2) {
1226	–	assertTrue(q.remove(new Integer(i)));
1227	–	}
1228	–	for (int i = 0; i < SIZE; i+=2) {
1229	–	assertTrue(q.remove(new Integer(i)));
1230	–	assertFalse(q.remove(new Integer(i+1)));
1231	–	}
1232	–	assertTrue(q.isEmpty());
1233	–	}
1234	–
1235	–	/**
1460		* contains(x) reports true when elements added but not yet removed
1461		*/
1462		public void testContains() {
#	Line 1288 | Line 1512 | public class LinkedBlockingDequeTest ext
1512		assertTrue(changed);
1513
1514		assertTrue(q.containsAll(p));
1515	<	assertEquals(SIZE-i, q.size());
1515	>	assertEquals(SIZE - i, q.size());
1516		p.remove();
1517		}
1518		}
#	Line 1301 | Line 1525 | public class LinkedBlockingDequeTest ext
1525		LinkedBlockingDeque q = populatedDeque(SIZE);
1526		LinkedBlockingDeque p = populatedDeque(i);
1527		assertTrue(q.removeAll(p));
1528	<	assertEquals(SIZE-i, q.size());
1528	>	assertEquals(SIZE - i, q.size());
1529		for (int j = 0; j < i; ++j) {
1530	<	Integer I = (Integer)(p.remove());
1531	<	assertFalse(q.contains(I));
1530	>	Integer x = (Integer)(p.remove());
1531	>	assertFalse(q.contains(x));
1532		}
1533		}
1534		}
1535
1536		/**
1537	<	* toArray contains all elements
1537	>	* toArray contains all elements in FIFO order
1538		*/
1539	<	public void testToArray() throws InterruptedException{
1539	>	public void testToArray() throws InterruptedException {
1540		LinkedBlockingDeque q = populatedDeque(SIZE);
1541	<	Object[] o = q.toArray();
1542	<	for (int i = 0; i < o.length; i++)
1543	<	assertEquals(o[i], q.take());
1541	>	Object[] a = q.toArray();
1542	>	assertSame(Object[].class, a.getClass());
1543	>	for (Object o : a)
1544	>	assertSame(o, q.poll());
1545	>	assertTrue(q.isEmpty());
1546		}
1547
1548		/**
1549	<	* toArray(a) contains all elements
1549	>	* toArray(a) contains all elements in FIFO order
1550		*/
1551	<	public void testToArray2() throws InterruptedException {
1552	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1551	>	public void testToArray2() {
1552	>	LinkedBlockingDeque<Integer> q = populatedDeque(SIZE);
1553		Integer[] ints = new Integer[SIZE];
1554	<	ints = (Integer[])q.toArray(ints);
1555	<	for (int i = 0; i < ints.length; i++)
1556	<	assertEquals(ints[i], q.take());
1557	<	}
1558	<
1333	<	/**
1334	<	* toArray(null) throws NPE
1335	<	*/
1336	<	public void testToArray_BadArg() {
1337	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1338	<	try {
1339	<	Object o[] = q.toArray(null);
1340	<	shouldThrow();
1341	<	} catch (NullPointerException success) {}
1554	>	Integer[] array = q.toArray(ints);
1555	>	assertSame(ints, array);
1556	>	for (Integer o : ints)
1557	>	assertSame(o, q.remove());
1558	>	assertTrue(q.isEmpty());
1559		}
1560
1561		/**
1562	<	* toArray with incompatible array type throws CCE
1562	>	* toArray(incompatible array type) throws ArrayStoreException
1563		*/
1564		public void testToArray1_BadArg() {
1565		LinkedBlockingDeque q = populatedDeque(SIZE);
1566		try {
1567	<	Object o[] = q.toArray(new String[10]);
1567	>	q.toArray(new String[10]);
1568		shouldThrow();
1569		} catch (ArrayStoreException success) {}
1570		}
1571
1355	–
1572		/**
1573		* iterator iterates through all elements
1574		*/
1575		public void testIterator() throws InterruptedException {
1576		LinkedBlockingDeque q = populatedDeque(SIZE);
1577		Iterator it = q.iterator();
1578	<	while (it.hasNext()) {
1578	>	int i;
1579	>	for (i = 0; it.hasNext(); i++)
1580	>	assertTrue(q.contains(it.next()));
1581	>	assertEquals(i, SIZE);
1582	>	assertIteratorExhausted(it);
1583	>
1584	>	it = q.iterator();
1585	>	for (i = 0; it.hasNext(); i++)
1586		assertEquals(it.next(), q.take());
1587	<	}
1587	>	assertEquals(i, SIZE);
1588	>	assertIteratorExhausted(it);
1589	>	}
1590	>
1591	>	/**
1592	>	* iterator of empty collection has no elements
1593	>	*/
1594	>	public void testEmptyIterator() {
1595	>	Deque c = new LinkedBlockingDeque();
1596	>	assertIteratorExhausted(c.iterator());
1597	>	assertIteratorExhausted(c.descendingIterator());
1598		}
1599
1600		/**
#	Line 1383 | Line 1616 | public class LinkedBlockingDequeTest ext
1616		assertFalse(it.hasNext());
1617		}
1618
1386	–
1619		/**
1620		* iterator ordering is FIFO
1621		*/
#	Line 1415 | Line 1647 | public class LinkedBlockingDequeTest ext
1647		assertEquals(0, q.size());
1648		}
1649
1418	–
1650		/**
1651		* Descending iterator iterates through all elements
1652		*/
#	Line 1478 | Line 1709 | public class LinkedBlockingDequeTest ext
1709		}
1710		}
1711
1481	–
1712		/**
1713		* toString contains toStrings of elements
1714		*/
#	Line 1486 | Line 1716 | public class LinkedBlockingDequeTest ext
1716		LinkedBlockingDeque q = populatedDeque(SIZE);
1717		String s = q.toString();
1718		for (int i = 0; i < SIZE; ++i) {
1719	<	assertTrue(s.indexOf(String.valueOf(i)) >= 0);
1719	>	assertTrue(s.contains(String.valueOf(i)));
1720		}
1721		}
1722
1493	–
1723		/**
1724		* offer transfers elements across Executor tasks
1725		*/
#	Line 1498 | Line 1727 | public class LinkedBlockingDequeTest ext
1727		final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
1728		q.add(one);
1729		q.add(two);
1730	<	ExecutorService executor = Executors.newFixedThreadPool(2);
1731	<	executor.execute(new CheckedRunnable() {
1732	<	public void realRun() throws InterruptedException {
1733	<	assertFalse(q.offer(three));
1734	<	assertTrue(q.offer(three, MEDIUM_DELAY_MS, MILLISECONDS));
1735	<	assertEquals(0, q.remainingCapacity());
1736	<	}});
1737	<
1738	<	executor.execute(new CheckedRunnable() {
1739	<	public void realRun() throws InterruptedException {
1740	<	Thread.sleep(SMALL_DELAY_MS);
1741	<	assertSame(one, q.take());
1742	<	}});
1743	<
1744	<	joinPool(executor);
1730	>	final CheckedBarrier threadsStarted = new CheckedBarrier(2);
1731	>	final ExecutorService executor = Executors.newFixedThreadPool(2);
1732	>	try (PoolCleaner cleaner = cleaner(executor)) {
1733	>	executor.execute(new CheckedRunnable() {
1734	>	public void realRun() throws InterruptedException {
1735	>	assertFalse(q.offer(three));
1736	>	threadsStarted.await();
1737	>	assertTrue(q.offer(three, LONG_DELAY_MS, MILLISECONDS));
1738	>	assertEquals(0, q.remainingCapacity());
1739	>	}});
1740	>
1741	>	executor.execute(new CheckedRunnable() {
1742	>	public void realRun() throws InterruptedException {
1743	>	threadsStarted.await();
1744	>	assertSame(one, q.take());
1745	>	}});
1746	>	}
1747		}
1748
1749		/**
1750	<	* poll retrieves elements across Executor threads
1750	>	* timed poll retrieves elements across Executor threads
1751		*/
1752		public void testPollInExecutor() {
1753		final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
1754	<	ExecutorService executor = Executors.newFixedThreadPool(2);
1755	<	executor.execute(new CheckedRunnable() {
1756	<	public void realRun() throws InterruptedException {
1757	<	assertNull(q.poll());
1758	<	assertSame(one, q.poll(MEDIUM_DELAY_MS, MILLISECONDS));
1759	<	assertTrue(q.isEmpty());
1760	<	}});
1761	<
1762	<	executor.execute(new CheckedRunnable() {
1763	<	public void realRun() throws InterruptedException {
1764	<	Thread.sleep(SMALL_DELAY_MS);
1765	<	q.put(one);
1766	<	}});
1767	<
1768	<	joinPool(executor);
1754	>	final CheckedBarrier threadsStarted = new CheckedBarrier(2);
1755	>	final ExecutorService executor = Executors.newFixedThreadPool(2);
1756	>	try (PoolCleaner cleaner = cleaner(executor)) {
1757	>	executor.execute(new CheckedRunnable() {
1758	>	public void realRun() throws InterruptedException {
1759	>	assertNull(q.poll());
1760	>	threadsStarted.await();
1761	>	assertSame(one, q.poll(LONG_DELAY_MS, MILLISECONDS));
1762	>	checkEmpty(q);
1763	>	}});
1764	>
1765	>	executor.execute(new CheckedRunnable() {
1766	>	public void realRun() throws InterruptedException {
1767	>	threadsStarted.await();
1768	>	q.put(one);
1769	>	}});
1770	>	}
1771		}
1772
1773		/**
1774	<	* A deserialized serialized deque has same elements in same order
1774	>	* A deserialized/reserialized deque has same elements in same order
1775		*/
1776		public void testSerialization() throws Exception {
1777	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1778	<
1546	<	ByteArrayOutputStream bout = new ByteArrayOutputStream(10000);
1547	<	ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout));
1548	<	out.writeObject(q);
1549	<	out.close();
1550	<
1551	<	ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray());
1552	<	ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin));
1553	<	LinkedBlockingDeque r = (LinkedBlockingDeque)in.readObject();
1554	<	assertEquals(q.size(), r.size());
1555	<	while (!q.isEmpty())
1556	<	assertEquals(q.remove(), r.remove());
1557	<	}
1558	<
1559	<	/**
1560	<	* drainTo(null) throws NPE
1561	<	*/
1562	<	public void testDrainToNull() {
1563	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1564	<	try {
1565	<	q.drainTo(null);
1566	<	shouldThrow();
1567	<	} catch (NullPointerException success) {}
1568	<	}
1777	>	Queue x = populatedDeque(SIZE);
1778	>	Queue y = serialClone(x);
1779
1780	<	/**
1781	<	* drainTo(this) throws IAE
1782	<	*/
1783	<	public void testDrainToSelf() {
1784	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1785	<	try {
1786	<	q.drainTo(q);
1787	<	shouldThrow();
1788	<	} catch (IllegalArgumentException success) {}
1780	>	assertNotSame(y, x);
1781	>	assertEquals(x.size(), y.size());
1782	>	assertEquals(x.toString(), y.toString());
1783	>	assertTrue(Arrays.equals(x.toArray(), y.toArray()));
1784	>	while (!x.isEmpty()) {
1785	>	assertFalse(y.isEmpty());
1786	>	assertEquals(x.remove(), y.remove());
1787	>	}
1788	>	assertTrue(y.isEmpty());
1789		}
1790
1791		/**
#	Line 1585 | Line 1795 | public class LinkedBlockingDequeTest ext
1795		LinkedBlockingDeque q = populatedDeque(SIZE);
1796		ArrayList l = new ArrayList();
1797		q.drainTo(l);
1798	<	assertEquals(q.size(), 0);
1799	<	assertEquals(l.size(), SIZE);
1798	>	assertEquals(0, q.size());
1799	>	assertEquals(SIZE, l.size());
1800		for (int i = 0; i < SIZE; ++i)
1801		assertEquals(l.get(i), new Integer(i));
1802		q.add(zero);
#	Line 1596 | Line 1806 | public class LinkedBlockingDequeTest ext
1806		assertTrue(q.contains(one));
1807		l.clear();
1808		q.drainTo(l);
1809	<	assertEquals(q.size(), 0);
1810	<	assertEquals(l.size(), 2);
1809	>	assertEquals(0, q.size());
1810	>	assertEquals(2, l.size());
1811		for (int i = 0; i < 2; ++i)
1812		assertEquals(l.get(i), new Integer(i));
1813		}
#	Line 1609 | Line 1819 | public class LinkedBlockingDequeTest ext
1819		final LinkedBlockingDeque q = populatedDeque(SIZE);
1820		Thread t = new Thread(new CheckedRunnable() {
1821		public void realRun() throws InterruptedException {
1822	<	q.put(new Integer(SIZE+1));
1822	>	q.put(new Integer(SIZE + 1));
1823		}});
1824
1825		t.start();
#	Line 1623 | Line 1833 | public class LinkedBlockingDequeTest ext
1833		}
1834
1835		/**
1626	–	* drainTo(null, n) throws NPE
1627	–	*/
1628	–	public void testDrainToNullN() {
1629	–	LinkedBlockingDeque q = populatedDeque(SIZE);
1630	–	try {
1631	–	q.drainTo(null, 0);
1632	–	shouldThrow();
1633	–	} catch (NullPointerException success) {}
1634	–	}
1635	–
1636	–	/**
1637	–	* drainTo(this, n) throws IAE
1638	–	*/
1639	–	public void testDrainToSelfN() {
1640	–	LinkedBlockingDeque q = populatedDeque(SIZE);
1641	–	try {
1642	–	q.drainTo(q, 0);
1643	–	shouldThrow();
1644	–	} catch (IllegalArgumentException success) {}
1645	–	}
1646	–
1647	–	/**
1836		* drainTo(c, n) empties first min(n, size) elements of queue into c
1837		*/
1838		public void testDrainToN() {
#	Line 1655 | Line 1843 | public class LinkedBlockingDequeTest ext
1843		ArrayList l = new ArrayList();
1844		q.drainTo(l, i);
1845		int k = (i < SIZE) ? i : SIZE;
1846	<	assertEquals(l.size(), k);
1847	<	assertEquals(q.size(), SIZE-k);
1846	>	assertEquals(k, l.size());
1847	>	assertEquals(SIZE - k, q.size());
1848		for (int j = 0; j < k; ++j)
1849		assertEquals(l.get(j), new Integer(j));
1850	<	while (q.poll() != null) ;
1850	>	do {} while (q.poll() != null);
1851	>	}
1852	>	}
1853	>
1854	>	/**
1855	>	* remove(null), contains(null) always return false
1856	>	*/
1857	>	public void testNeverContainsNull() {
1858	>	Deque<?>[] qs = {
1859	>	new LinkedBlockingDeque<Object>(),
1860	>	populatedDeque(2),
1861	>	};
1862	>
1863	>	for (Deque<?> q : qs) {
1864	>	assertFalse(q.contains(null));
1865	>	assertFalse(q.remove(null));
1866	>	assertFalse(q.removeFirstOccurrence(null));
1867	>	assertFalse(q.removeLastOccurrence(null));
1868		}
1869		}
1870

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