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Comparing jsr166/src/test/tck/LinkedBlockingDequeTest.java (file contents):
Revision 1.38 by jsr166, Sat May 21 06:24:33 2011 UTC vs.
Revision 1.50 by jsr166, Sun Nov 23 22:27:06 2014 UTC

#	Line 5 | Line 5
5		*/
6
7		import junit.framework.*;
8	<	import java.util.*;
9	<	import java.util.concurrent.*;
8	>	import java.util.Arrays;
9	>	import java.util.ArrayList;
10	>	import java.util.Collection;
11	>	import java.util.Deque;
12	>	import java.util.Iterator;
13	>	import java.util.NoSuchElementException;
14	>	import java.util.Queue;
15	>	import java.util.concurrent.BlockingDeque;
16	>	import java.util.concurrent.BlockingQueue;
17	>	import java.util.concurrent.CountDownLatch;
18	>	import java.util.concurrent.Executors;
19	>	import java.util.concurrent.ExecutorService;
20	>	import java.util.concurrent.LinkedBlockingDeque;
21		import static java.util.concurrent.TimeUnit.MILLISECONDS;
11	–	import java.io.*;
22
23		public class LinkedBlockingDequeTest extends JSR166TestCase {
24
#	Line 20 | Line 30 | public class LinkedBlockingDequeTest ext
30
31		public static class Bounded extends BlockingQueueTest {
32		protected BlockingQueue emptyCollection() {
33	<	return new LinkedBlockingDeque(20);
33	>	return new LinkedBlockingDeque(SIZE);
34		}
35		}
36
#	Line 35 | Line 45 | public class LinkedBlockingDequeTest ext
45		}
46
47		/**
48	<	* Create a deque of given size containing consecutive
48	>	* Returns a new deque of given size containing consecutive
49		* Integers 0 ... n.
50		*/
51		private LinkedBlockingDeque<Integer> populatedDeque(int n) {
#	Line 80 | Line 90 | public class LinkedBlockingDequeTest ext
90		}
91
92		/**
93	<	* offer(null) throws NPE
93	>	* offerFirst(null) throws NullPointerException
94		*/
95		public void testOfferFirstNull() {
96	+	LinkedBlockingDeque q = new LinkedBlockingDeque();
97		try {
87	–	LinkedBlockingDeque q = new LinkedBlockingDeque();
98		q.offerFirst(null);
99		shouldThrow();
100		} catch (NullPointerException success) {}
101		}
102
103		/**
104	+	* offerLast(null) throws NullPointerException
105	+	*/
106	+	public void testOfferLastNull() {
107	+	LinkedBlockingDeque q = new LinkedBlockingDeque();
108	+	try {
109	+	q.offerLast(null);
110	+	shouldThrow();
111	+	} catch (NullPointerException success) {}
112	+	}
113	+
114	+	/**
115		* OfferFirst succeeds
116		*/
117		public void testOfferFirst() {
#	Line 298 | Line 319 | public class LinkedBlockingDequeTest ext
319		assertSame(four, q.peekLast());
320		}
321
301	–
322		/**
323		* A new deque has the indicated capacity, or Integer.MAX_VALUE if
324		* none given
#	Line 309 | Line 329 | public class LinkedBlockingDequeTest ext
329		}
330
331		/**
332	<	* Constructor throws IAE if capacity argument nonpositive
332	>	* Constructor throws IllegalArgumentException if capacity argument nonpositive
333		*/
334		public void testConstructor2() {
335		try {
336	<	LinkedBlockingDeque q = new LinkedBlockingDeque(0);
336	>	new LinkedBlockingDeque(0);
337		shouldThrow();
338		} catch (IllegalArgumentException success) {}
339		}
340
341		/**
342	<	* Initializing from null Collection throws NPE
342	>	* Initializing from null Collection throws NullPointerException
343		*/
344		public void testConstructor3() {
345		try {
346	<	LinkedBlockingDeque q = new LinkedBlockingDeque(null);
346	>	new LinkedBlockingDeque(null);
347		shouldThrow();
348		} catch (NullPointerException success) {}
349		}
350
351		/**
352	<	* Initializing from Collection of null elements throws NPE
352	>	* Initializing from Collection of null elements throws NullPointerException
353		*/
354		public void testConstructor4() {
355	+	Collection<Integer> elements = Arrays.asList(new Integer[SIZE]);
356		try {
357	<	Integer[] ints = new Integer[SIZE];
337	<	LinkedBlockingDeque q = new LinkedBlockingDeque(Arrays.asList(ints));
357	>	new LinkedBlockingDeque(elements);
358		shouldThrow();
359		} catch (NullPointerException success) {}
360		}
361
362		/**
363	<	* Initializing from Collection with some null elements throws NPE
363	>	* Initializing from Collection with some null elements throws
364	>	* NullPointerException
365		*/
366		public void testConstructor5() {
367	+	Integer[] ints = new Integer[SIZE];
368	+	for (int i = 0; i < SIZE-1; ++i)
369	+	ints[i] = i;
370	+	Collection<Integer> elements = Arrays.asList(ints);
371		try {
372	<	Integer[] ints = new Integer[SIZE];
348	<	for (int i = 0; i < SIZE-1; ++i)
349	<	ints[i] = new Integer(i);
350	<	LinkedBlockingDeque q = new LinkedBlockingDeque(Arrays.asList(ints));
372	>	new LinkedBlockingDeque(elements);
373		shouldThrow();
374		} catch (NullPointerException success) {}
375		}
#	Line 358 | Line 380 | public class LinkedBlockingDequeTest ext
380		public void testConstructor6() {
381		Integer[] ints = new Integer[SIZE];
382		for (int i = 0; i < SIZE; ++i)
383	<	ints[i] = new Integer(i);
383	>	ints[i] = i;
384		LinkedBlockingDeque q = new LinkedBlockingDeque(Arrays.asList(ints));
385		for (int i = 0; i < SIZE; ++i)
386		assertEquals(ints[i], q.poll());
#	Line 397 | Line 419 | public class LinkedBlockingDequeTest ext
419		}
420
421		/**
400	–	* offer(null) throws NPE
401	–	*/
402	–	public void testOfferNull() {
403	–	try {
404	–	LinkedBlockingDeque q = new LinkedBlockingDeque(1);
405	–	q.offer(null);
406	–	shouldThrow();
407	–	} catch (NullPointerException success) {}
408	–	}
409	–
410	–	/**
411	–	* add(null) throws NPE
412	–	*/
413	–	public void testAddNull() {
414	–	try {
415	–	LinkedBlockingDeque q = new LinkedBlockingDeque(1);
416	–	q.add(null);
417	–	shouldThrow();
418	–	} catch (NullPointerException success) {}
419	–	}
420	–
421	–	/**
422		* push(null) throws NPE
423		*/
424		public void testPushNull() {
#	Line 456 | Line 456 | public class LinkedBlockingDequeTest ext
456		assertSame(four, q.peekFirst());
457		}
458
459	–
459		/**
460		* pop removes next element, or throws NSEE if empty
461		*/
#	Line 471 | Line 470 | public class LinkedBlockingDequeTest ext
470		} catch (NoSuchElementException success) {}
471		}
472
474	–
473		/**
474		* Offer succeeds if not full; fails if full
475		*/
#	Line 485 | Line 483 | public class LinkedBlockingDequeTest ext
483		* add succeeds if not full; throws ISE if full
484		*/
485		public void testAdd() {
486	+	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
487	+	for (int i = 0; i < SIZE; ++i)
488	+	assertTrue(q.add(new Integer(i)));
489	+	assertEquals(0, q.remainingCapacity());
490		try {
489	–	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
490	–	for (int i = 0; i < SIZE; ++i) {
491	–	assertTrue(q.add(new Integer(i)));
492	–	}
493	–	assertEquals(0, q.remainingCapacity());
491		q.add(new Integer(SIZE));
492		shouldThrow();
493		} catch (IllegalStateException success) {}
494		}
495
496		/**
500	–	* addAll(null) throws NPE
501	–	*/
502	–	public void testAddAll1() {
503	–	try {
504	–	LinkedBlockingDeque q = new LinkedBlockingDeque(1);
505	–	q.addAll(null);
506	–	shouldThrow();
507	–	} catch (NullPointerException success) {}
508	–	}
509	–
510	–	/**
497		* addAll(this) throws IAE
498		*/
499		public void testAddAllSelf() {
500	+	LinkedBlockingDeque q = populatedDeque(SIZE);
501		try {
515	–	LinkedBlockingDeque q = populatedDeque(SIZE);
502		q.addAll(q);
503		shouldThrow();
504		} catch (IllegalArgumentException success) {}
505		}
506
507		/**
522	–	* addAll of a collection with null elements throws NPE
523	–	*/
524	–	public void testAddAll2() {
525	–	try {
526	–	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
527	–	Integer[] ints = new Integer[SIZE];
528	–	q.addAll(Arrays.asList(ints));
529	–	shouldThrow();
530	–	} catch (NullPointerException success) {}
531	–	}
532	–
533	–	/**
508		* addAll of a collection with any null elements throws NPE after
509		* possibly adding some elements
510		*/
511		public void testAddAll3() {
512	+	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
513	+	Integer[] ints = new Integer[SIZE];
514	+	for (int i = 0; i < SIZE-1; ++i)
515	+	ints[i] = new Integer(i);
516	+	Collection<Integer> elements = Arrays.asList(ints);
517		try {
518	<	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
540	<	Integer[] ints = new Integer[SIZE];
541	<	for (int i = 0; i < SIZE-1; ++i)
542	<	ints[i] = new Integer(i);
543	<	q.addAll(Arrays.asList(ints));
518	>	q.addAll(elements);
519		shouldThrow();
520		} catch (NullPointerException success) {}
521		}
522
523		/**
524	<	* addAll throws ISE if not enough room
524	>	* addAll throws IllegalStateException if not enough room
525		*/
526		public void testAddAll4() {
527	+	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE - 1);
528	+	Integer[] ints = new Integer[SIZE];
529	+	for (int i = 0; i < SIZE; ++i)
530	+	ints[i] = new Integer(i);
531	+	Collection<Integer> elements = Arrays.asList(ints);
532		try {
533	<	LinkedBlockingDeque q = new LinkedBlockingDeque(1);
554	<	Integer[] ints = new Integer[SIZE];
555	<	for (int i = 0; i < SIZE; ++i)
556	<	ints[i] = new Integer(i);
557	<	q.addAll(Arrays.asList(ints));
533	>	q.addAll(elements);
534		shouldThrow();
535		} catch (IllegalStateException success) {}
536		}
#	Line 574 | Line 550 | public class LinkedBlockingDequeTest ext
550		assertEquals(ints[i], q.poll());
551		}
552
577	–
578	–	/**
579	–	* put(null) throws NPE
580	–	*/
581	–	public void testPutNull() throws InterruptedException {
582	–	try {
583	–	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
584	–	q.put(null);
585	–	shouldThrow();
586	–	} catch (NullPointerException success) {}
587	–	}
588	–
553		/**
554		* all elements successfully put are contained
555		*/
#	Line 604 | Line 568 | public class LinkedBlockingDequeTest ext
568		*/
569		public void testBlockingPut() throws InterruptedException {
570		final LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
571	<	Thread t = new Thread(new CheckedRunnable() {
571	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
572	>	Thread t = newStartedThread(new CheckedRunnable() {
573		public void realRun() throws InterruptedException {
574		for (int i = 0; i < SIZE; ++i)
575		q.put(i);
576		assertEquals(SIZE, q.size());
577		assertEquals(0, q.remainingCapacity());
578	+
579	+	Thread.currentThread().interrupt();
580	+	try {
581	+	q.put(99);
582	+	shouldThrow();
583	+	} catch (InterruptedException success) {}
584	+	assertFalse(Thread.interrupted());
585	+
586	+	pleaseInterrupt.countDown();
587		try {
588		q.put(99);
589		shouldThrow();
590		} catch (InterruptedException success) {}
591	+	assertFalse(Thread.interrupted());
592		}});
593
594	<	t.start();
595	<	delay(SHORT_DELAY_MS);
594	>	await(pleaseInterrupt);
595	>	assertThreadStaysAlive(t);
596		t.interrupt();
597	<	t.join();
597	>	awaitTermination(t);
598		assertEquals(SIZE, q.size());
599		assertEquals(0, q.remainingCapacity());
600		}
601
602		/**
603	<	* put blocks waiting for take when full
603	>	* put blocks interruptibly waiting for take when full
604		*/
605		public void testPutWithTake() throws InterruptedException {
606		final int capacity = 2;
607		final LinkedBlockingDeque q = new LinkedBlockingDeque(capacity);
608	<	Thread t = new Thread(new CheckedRunnable() {
608	>	final CountDownLatch pleaseTake = new CountDownLatch(1);
609	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
610	>	Thread t = newStartedThread(new CheckedRunnable() {
611		public void realRun() throws InterruptedException {
612	<	for (int i = 0; i < capacity + 1; i++)
612	>	for (int i = 0; i < capacity; i++)
613		q.put(i);
614	+	pleaseTake.countDown();
615	+	q.put(86);
616	+
617	+	pleaseInterrupt.countDown();
618		try {
619		q.put(99);
620		shouldThrow();
621		} catch (InterruptedException success) {}
622	+	assertFalse(Thread.interrupted());
623		}});
624
625	<	t.start();
626	<	delay(SHORT_DELAY_MS);
645	<	assertEquals(q.remainingCapacity(), 0);
625	>	await(pleaseTake);
626	>	assertEquals(0, q.remainingCapacity());
627		assertEquals(0, q.take());
628	<	delay(SHORT_DELAY_MS);
628	>
629	>	await(pleaseInterrupt);
630	>	assertThreadStaysAlive(t);
631		t.interrupt();
632	<	t.join();
633	<	assertEquals(q.remainingCapacity(), 0);
632	>	awaitTermination(t);
633	>	assertEquals(0, q.remainingCapacity());
634		}
635
636		/**
#	Line 671 | Line 654 | public class LinkedBlockingDequeTest ext
654		}});
655
656		await(pleaseInterrupt);
657	+	assertThreadStaysAlive(t);
658		t.interrupt();
659		awaitTermination(t);
660		}
#	Line 686 | Line 670 | public class LinkedBlockingDequeTest ext
670		}
671
672		/**
673	<	* Take removes existing elements until empty, then blocks interruptibly
673	>	* take removes existing elements until empty, then blocks interruptibly
674		*/
675		public void testBlockingTake() throws InterruptedException {
676		final LinkedBlockingDeque q = populatedDeque(SIZE);
677	<	Thread t = new Thread(new CheckedRunnable() {
677	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
678	>	Thread t = newStartedThread(new CheckedRunnable() {
679		public void realRun() throws InterruptedException {
680		for (int i = 0; i < SIZE; ++i) {
681		assertEquals(i, q.take());
682		}
683	+
684	+	Thread.currentThread().interrupt();
685		try {
686		q.take();
687		shouldThrow();
688		} catch (InterruptedException success) {}
689	+	assertFalse(Thread.interrupted());
690	+
691	+	pleaseInterrupt.countDown();
692	+	try {
693	+	q.take();
694	+	shouldThrow();
695	+	} catch (InterruptedException success) {}
696	+	assertFalse(Thread.interrupted());
697		}});
698
699	<	t.start();
700	<	delay(SHORT_DELAY_MS);
699	>	await(pleaseInterrupt);
700	>	assertThreadStaysAlive(t);
701		t.interrupt();
702	<	t.join();
702	>	awaitTermination(t);
703		}
704
710	–
705		/**
706		* poll succeeds unless empty
707		*/
#	Line 736 | Line 730 | public class LinkedBlockingDequeTest ext
730		public void testTimedPoll() throws InterruptedException {
731		LinkedBlockingDeque q = populatedDeque(SIZE);
732		for (int i = 0; i < SIZE; ++i) {
733	<	assertEquals(i, q.poll(SHORT_DELAY_MS, MILLISECONDS));
734	<	}
735	<	assertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS));
733	>	long startTime = System.nanoTime();
734	>	assertEquals(i, q.poll(LONG_DELAY_MS, MILLISECONDS));
735	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
736	>	}
737	>	long startTime = System.nanoTime();
738	>	assertNull(q.poll(timeoutMillis(), MILLISECONDS));
739	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
740	>	checkEmpty(q);
741		}
742
743		/**
#	Line 776 | Line 775 | public class LinkedBlockingDequeTest ext
775		* putFirst(null) throws NPE
776		*/
777		public void testPutFirstNull() throws InterruptedException {
778	+	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
779		try {
780	–	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
780		q.putFirst(null);
781		shouldThrow();
782		} catch (NullPointerException success) {}
#	Line 801 | Line 800 | public class LinkedBlockingDequeTest ext
800		*/
801		public void testBlockingPutFirst() throws InterruptedException {
802		final LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
803	<	Thread t = new Thread(new CheckedRunnable() {
803	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
804	>	Thread t = newStartedThread(new CheckedRunnable() {
805		public void realRun() throws InterruptedException {
806		for (int i = 0; i < SIZE; ++i)
807		q.putFirst(i);
808		assertEquals(SIZE, q.size());
809		assertEquals(0, q.remainingCapacity());
810	+
811	+	Thread.currentThread().interrupt();
812		try {
813		q.putFirst(99);
814		shouldThrow();
815		} catch (InterruptedException success) {}
816	+	assertFalse(Thread.interrupted());
817	+
818	+	pleaseInterrupt.countDown();
819	+	try {
820	+	q.putFirst(99);
821	+	shouldThrow();
822	+	} catch (InterruptedException success) {}
823	+	assertFalse(Thread.interrupted());
824		}});
825
826	<	t.start();
827	<	delay(SHORT_DELAY_MS);
826	>	await(pleaseInterrupt);
827	>	assertThreadStaysAlive(t);
828		t.interrupt();
829	<	t.join();
829	>	awaitTermination(t);
830		assertEquals(SIZE, q.size());
831		assertEquals(0, q.remainingCapacity());
832		}
833
834		/**
835	<	* putFirst blocks waiting for take when full
835	>	* putFirst blocks interruptibly waiting for take when full
836		*/
837		public void testPutFirstWithTake() throws InterruptedException {
838		final int capacity = 2;
839		final LinkedBlockingDeque q = new LinkedBlockingDeque(capacity);
840	<	Thread t = new Thread(new CheckedRunnable() {
840	>	final CountDownLatch pleaseTake = new CountDownLatch(1);
841	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
842	>	Thread t = newStartedThread(new CheckedRunnable() {
843		public void realRun() throws InterruptedException {
844	<	for (int i = 0; i < capacity + 1; i++)
844	>	for (int i = 0; i < capacity; i++)
845		q.putFirst(i);
846	+	pleaseTake.countDown();
847	+	q.putFirst(86);
848	+
849	+	pleaseInterrupt.countDown();
850		try {
851		q.putFirst(99);
852		shouldThrow();
853		} catch (InterruptedException success) {}
854	+	assertFalse(Thread.interrupted());
855		}});
856
857	<	t.start();
858	<	delay(SHORT_DELAY_MS);
842	<	assertEquals(q.remainingCapacity(), 0);
857	>	await(pleaseTake);
858	>	assertEquals(0, q.remainingCapacity());
859		assertEquals(capacity - 1, q.take());
860	<	delay(SHORT_DELAY_MS);
860	>
861	>	await(pleaseInterrupt);
862	>	assertThreadStaysAlive(t);
863		t.interrupt();
864	<	t.join();
865	<	assertEquals(q.remainingCapacity(), 0);
864	>	awaitTermination(t);
865	>	assertEquals(0, q.remainingCapacity());
866		}
867
868		/**
#	Line 868 | Line 886 | public class LinkedBlockingDequeTest ext
886		}});
887
888		await(pleaseInterrupt);
889	+	assertThreadStaysAlive(t);
890		t.interrupt();
891		awaitTermination(t);
892		}
#	Line 883 | Line 902 | public class LinkedBlockingDequeTest ext
902		}
903
904		/**
905	<	* takeFirst blocks interruptibly when empty
905	>	* takeFirst() blocks interruptibly when empty
906		*/
907	<	public void testTakeFirstFromEmpty() throws InterruptedException {
908	<	final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
909	<	Thread t = new ThreadShouldThrow(InterruptedException.class) {
910	<	public void realRun() throws InterruptedException {
911	<	q.takeFirst();
912	<	}};
907	>	public void testTakeFirstFromEmptyBlocksInterruptibly() {
908	>	final BlockingDeque q = new LinkedBlockingDeque();
909	>	final CountDownLatch threadStarted = new CountDownLatch(1);
910	>	Thread t = newStartedThread(new CheckedRunnable() {
911	>	public void realRun() {
912	>	threadStarted.countDown();
913	>	try {
914	>	q.takeFirst();
915	>	shouldThrow();
916	>	} catch (InterruptedException success) {}
917	>	assertFalse(Thread.interrupted());
918	>	}});
919
920	<	t.start();
921	<	delay(SHORT_DELAY_MS);
920	>	await(threadStarted);
921	>	assertThreadStaysAlive(t);
922		t.interrupt();
923	<	t.join();
923	>	awaitTermination(t);
924		}
925
926		/**
927	<	* TakeFirst removes existing elements until empty, then blocks interruptibly
927	>	* takeFirst() throws InterruptedException immediately if interrupted
928	>	* before waiting
929	>	*/
930	>	public void testTakeFirstFromEmptyAfterInterrupt() {
931	>	final BlockingDeque q = new LinkedBlockingDeque();
932	>	Thread t = newStartedThread(new CheckedRunnable() {
933	>	public void realRun() {
934	>	Thread.currentThread().interrupt();
935	>	try {
936	>	q.takeFirst();
937	>	shouldThrow();
938	>	} catch (InterruptedException success) {}
939	>	assertFalse(Thread.interrupted());
940	>	}});
941	>
942	>	awaitTermination(t);
943	>	}
944	>
945	>	/**
946	>	* takeLast() blocks interruptibly when empty
947	>	*/
948	>	public void testTakeLastFromEmptyBlocksInterruptibly() {
949	>	final BlockingDeque q = new LinkedBlockingDeque();
950	>	final CountDownLatch threadStarted = new CountDownLatch(1);
951	>	Thread t = newStartedThread(new CheckedRunnable() {
952	>	public void realRun() {
953	>	threadStarted.countDown();
954	>	try {
955	>	q.takeLast();
956	>	shouldThrow();
957	>	} catch (InterruptedException success) {}
958	>	assertFalse(Thread.interrupted());
959	>	}});
960	>
961	>	await(threadStarted);
962	>	assertThreadStaysAlive(t);
963	>	t.interrupt();
964	>	awaitTermination(t);
965	>	}
966	>
967	>	/**
968	>	* takeLast() throws InterruptedException immediately if interrupted
969	>	* before waiting
970	>	*/
971	>	public void testTakeLastFromEmptyAfterInterrupt() {
972	>	final BlockingDeque q = new LinkedBlockingDeque();
973	>	Thread t = newStartedThread(new CheckedRunnable() {
974	>	public void realRun() {
975	>	Thread.currentThread().interrupt();
976	>	try {
977	>	q.takeLast();
978	>	shouldThrow();
979	>	} catch (InterruptedException success) {}
980	>	assertFalse(Thread.interrupted());
981	>	}});
982	>
983	>	awaitTermination(t);
984	>	}
985	>
986	>	/**
987	>	* takeFirst removes existing elements until empty, then blocks interruptibly
988		*/
989		public void testBlockingTakeFirst() throws InterruptedException {
990		final LinkedBlockingDeque q = populatedDeque(SIZE);
991	<	Thread t = new Thread(new CheckedRunnable() {
991	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
992	>	Thread t = newStartedThread(new CheckedRunnable() {
993		public void realRun() throws InterruptedException {
994	<	for (int i = 0; i < SIZE; ++i)
994	>	for (int i = 0; i < SIZE; ++i) {
995		assertEquals(i, q.takeFirst());
996	+	}
997	+
998	+	Thread.currentThread().interrupt();
999		try {
1000		q.takeFirst();
1001		shouldThrow();
1002		} catch (InterruptedException success) {}
1003	+	assertFalse(Thread.interrupted());
1004	+
1005	+	pleaseInterrupt.countDown();
1006	+	try {
1007	+	q.takeFirst();
1008	+	shouldThrow();
1009	+	} catch (InterruptedException success) {}
1010	+	assertFalse(Thread.interrupted());
1011		}});
1012
1013	<	t.start();
1014	<	delay(SHORT_DELAY_MS);
1013	>	await(pleaseInterrupt);
1014	>	assertThreadStaysAlive(t);
1015		t.interrupt();
1016	<	t.join();
1016	>	awaitTermination(t);
1017		}
1018
922	–
1019		/**
1020		* timed pollFirst with zero timeout succeeds when non-empty, else times out
1021		*/
#	Line 937 | Line 1033 | public class LinkedBlockingDequeTest ext
1033		public void testTimedPollFirst() throws InterruptedException {
1034		LinkedBlockingDeque q = populatedDeque(SIZE);
1035		for (int i = 0; i < SIZE; ++i) {
1036	<	assertEquals(i, q.pollFirst(SHORT_DELAY_MS, MILLISECONDS));
1037	<	}
1038	<	assertNull(q.pollFirst(SHORT_DELAY_MS, MILLISECONDS));
1036	>	long startTime = System.nanoTime();
1037	>	assertEquals(i, q.pollFirst(LONG_DELAY_MS, MILLISECONDS));
1038	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1039	>	}
1040	>	long startTime = System.nanoTime();
1041	>	assertNull(q.pollFirst(timeoutMillis(), MILLISECONDS));
1042	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
1043	>	checkEmpty(q);
1044		}
1045
1046		/**
#	Line 947 | Line 1048 | public class LinkedBlockingDequeTest ext
1048		* returning timeout status
1049		*/
1050		public void testInterruptedTimedPollFirst() throws InterruptedException {
1051	<	Thread t = new Thread(new CheckedRunnable() {
1051	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
1052	>	Thread t = newStartedThread(new CheckedRunnable() {
1053		public void realRun() throws InterruptedException {
1054		LinkedBlockingDeque q = populatedDeque(SIZE);
1055		for (int i = 0; i < SIZE; ++i) {
1056	<	assertEquals(i, q.pollFirst(SHORT_DELAY_MS, MILLISECONDS));
1056	>	assertEquals(i, q.pollFirst(LONG_DELAY_MS, MILLISECONDS));
1057		}
1058	+
1059	+	Thread.currentThread().interrupt();
1060		try {
1061		q.pollFirst(SMALL_DELAY_MS, MILLISECONDS);
1062		shouldThrow();
1063		} catch (InterruptedException success) {}
1064	+	assertFalse(Thread.interrupted());
1065	+
1066	+	pleaseInterrupt.countDown();
1067	+	try {
1068	+	q.pollFirst(LONG_DELAY_MS, MILLISECONDS);
1069	+	shouldThrow();
1070	+	} catch (InterruptedException success) {}
1071	+	assertFalse(Thread.interrupted());
1072		}});
1073
1074	<	t.start();
1075	<	delay(SHORT_DELAY_MS);
1074	>	await(pleaseInterrupt);
1075	>	assertThreadStaysAlive(t);
1076		t.interrupt();
1077	<	t.join();
1077	>	awaitTermination(t);
1078		}
1079
1080		/**
#	Line 971 | Line 1083 | public class LinkedBlockingDequeTest ext
1083		*/
1084		public void testTimedPollFirstWithOfferFirst() throws InterruptedException {
1085		final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
1086	<	Thread t = new Thread(new CheckedRunnable() {
1086	>	final CheckedBarrier barrier = new CheckedBarrier(2);
1087	>	Thread t = newStartedThread(new CheckedRunnable() {
1088		public void realRun() throws InterruptedException {
1089	<	assertNull(q.pollFirst(SHORT_DELAY_MS, MILLISECONDS));
1089	>	long startTime = System.nanoTime();
1090	>	assertNull(q.pollFirst(timeoutMillis(), MILLISECONDS));
1091	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
1092	>
1093	>	barrier.await();
1094	>
1095		assertSame(zero, q.pollFirst(LONG_DELAY_MS, MILLISECONDS));
1096	+
1097	+	Thread.currentThread().interrupt();
1098	+	try {
1099	+	q.pollFirst(LONG_DELAY_MS, MILLISECONDS);
1100	+	shouldThrow();
1101	+	} catch (InterruptedException success) {}
1102	+
1103	+	barrier.await();
1104		try {
1105		q.pollFirst(LONG_DELAY_MS, MILLISECONDS);
1106		shouldThrow();
1107		} catch (InterruptedException success) {}
1108	+	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1109		}});
1110
1111	<	t.start();
1112	<	delay(SMALL_DELAY_MS);
1113	<	assertTrue(q.offerFirst(zero, SHORT_DELAY_MS, MILLISECONDS));
1111	>	barrier.await();
1112	>	long startTime = System.nanoTime();
1113	>	assertTrue(q.offerFirst(zero, LONG_DELAY_MS, MILLISECONDS));
1114	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1115	>	barrier.await();
1116	>	assertThreadStaysAlive(t);
1117		t.interrupt();
1118	<	t.join();
1118	>	awaitTermination(t);
1119		}
1120
1121		/**
1122		* putLast(null) throws NPE
1123		*/
1124		public void testPutLastNull() throws InterruptedException {
1125	+	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
1126		try {
996	–	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
1127		q.putLast(null);
1128		shouldThrow();
1129		} catch (NullPointerException success) {}
#	Line 1017 | Line 1147 | public class LinkedBlockingDequeTest ext
1147		*/
1148		public void testBlockingPutLast() throws InterruptedException {
1149		final LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
1150	<	Thread t = new Thread(new CheckedRunnable() {
1150	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
1151	>	Thread t = newStartedThread(new CheckedRunnable() {
1152		public void realRun() throws InterruptedException {
1153		for (int i = 0; i < SIZE; ++i)
1154		q.putLast(i);
1155		assertEquals(SIZE, q.size());
1156		assertEquals(0, q.remainingCapacity());
1157	+
1158	+	Thread.currentThread().interrupt();
1159	+	try {
1160	+	q.putLast(99);
1161	+	shouldThrow();
1162	+	} catch (InterruptedException success) {}
1163	+	assertFalse(Thread.interrupted());
1164	+
1165	+	pleaseInterrupt.countDown();
1166		try {
1167		q.putLast(99);
1168		shouldThrow();
1169		} catch (InterruptedException success) {}
1170	+	assertFalse(Thread.interrupted());
1171		}});
1172
1173	<	t.start();
1174	<	delay(SHORT_DELAY_MS);
1173	>	await(pleaseInterrupt);
1174	>	assertThreadStaysAlive(t);
1175		t.interrupt();
1176	<	t.join();
1176	>	awaitTermination(t);
1177		assertEquals(SIZE, q.size());
1178		assertEquals(0, q.remainingCapacity());
1179		}
1180
1181		/**
1182	<	* putLast blocks waiting for take when full
1182	>	* putLast blocks interruptibly waiting for take when full
1183		*/
1184		public void testPutLastWithTake() throws InterruptedException {
1185		final int capacity = 2;
1186		final LinkedBlockingDeque q = new LinkedBlockingDeque(capacity);
1187	<	Thread t = new Thread(new CheckedRunnable() {
1187	>	final CountDownLatch pleaseTake = new CountDownLatch(1);
1188	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
1189	>	Thread t = newStartedThread(new CheckedRunnable() {
1190		public void realRun() throws InterruptedException {
1191	<	for (int i = 0; i < capacity + 1; i++)
1191	>	for (int i = 0; i < capacity; i++)
1192		q.putLast(i);
1193	+	pleaseTake.countDown();
1194	+	q.putLast(86);
1195	+
1196	+	pleaseInterrupt.countDown();
1197		try {
1198		q.putLast(99);
1199		shouldThrow();
1200		} catch (InterruptedException success) {}
1201	+	assertFalse(Thread.interrupted());
1202		}});
1203
1204	<	t.start();
1205	<	delay(SHORT_DELAY_MS);
1058	<	assertEquals(q.remainingCapacity(), 0);
1204	>	await(pleaseTake);
1205	>	assertEquals(0, q.remainingCapacity());
1206		assertEquals(0, q.take());
1207	<	delay(SHORT_DELAY_MS);
1207	>
1208	>	await(pleaseInterrupt);
1209	>	assertThreadStaysAlive(t);
1210		t.interrupt();
1211	<	t.join();
1212	<	assertEquals(q.remainingCapacity(), 0);
1211	>	awaitTermination(t);
1212	>	assertEquals(0, q.remainingCapacity());
1213		}
1214
1215		/**
#	Line 1084 | Line 1233 | public class LinkedBlockingDequeTest ext
1233		}});
1234
1235		await(pleaseInterrupt);
1236	+	assertThreadStaysAlive(t);
1237		t.interrupt();
1238		awaitTermination(t);
1239		}
#	Line 1099 | Line 1249 | public class LinkedBlockingDequeTest ext
1249		}
1250
1251		/**
1252	<	* takeLast blocks interruptibly when empty
1103	<	*/
1104	<	public void testTakeLastFromEmpty() throws InterruptedException {
1105	<	final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
1106	<	Thread t = new ThreadShouldThrow(InterruptedException.class) {
1107	<	public void realRun() throws InterruptedException {
1108	<	q.takeLast();
1109	<	}};
1110	<
1111	<	t.start();
1112	<	delay(SHORT_DELAY_MS);
1113	<	t.interrupt();
1114	<	t.join();
1115	<	}
1116	<
1117	<	/**
1118	<	* TakeLast removes existing elements until empty, then blocks interruptibly
1252	>	* takeLast removes existing elements until empty, then blocks interruptibly
1253		*/
1254		public void testBlockingTakeLast() throws InterruptedException {
1255		final LinkedBlockingDeque q = populatedDeque(SIZE);
1256	<	Thread t = new Thread(new CheckedRunnable() {
1256	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
1257	>	Thread t = newStartedThread(new CheckedRunnable() {
1258		public void realRun() throws InterruptedException {
1259	<	for (int i = 0; i < SIZE; ++i)
1260	<	assertEquals(SIZE - 1 - i, q.takeLast());
1259	>	for (int i = 0; i < SIZE; ++i) {
1260	>	assertEquals(SIZE-i-1, q.takeLast());
1261	>	}
1262	>
1263	>	Thread.currentThread().interrupt();
1264	>	try {
1265	>	q.takeLast();
1266	>	shouldThrow();
1267	>	} catch (InterruptedException success) {}
1268	>	assertFalse(Thread.interrupted());
1269	>
1270	>	pleaseInterrupt.countDown();
1271		try {
1272		q.takeLast();
1273		shouldThrow();
1274		} catch (InterruptedException success) {}
1275	+	assertFalse(Thread.interrupted());
1276		}});
1277
1278	<	t.start();
1279	<	delay(SHORT_DELAY_MS);
1278	>	await(pleaseInterrupt);
1279	>	assertThreadStaysAlive(t);
1280		t.interrupt();
1281	<	t.join();
1281	>	awaitTermination(t);
1282		}
1283
1284		/**
#	Line 1152 | Line 1298 | public class LinkedBlockingDequeTest ext
1298		public void testTimedPollLast() throws InterruptedException {
1299		LinkedBlockingDeque q = populatedDeque(SIZE);
1300		for (int i = 0; i < SIZE; ++i) {
1301	<	assertEquals(SIZE-i-1, q.pollLast(SHORT_DELAY_MS, MILLISECONDS));
1302	<	}
1303	<	assertNull(q.pollLast(SHORT_DELAY_MS, MILLISECONDS));
1301	>	long startTime = System.nanoTime();
1302	>	assertEquals(SIZE-i-1, q.pollLast(LONG_DELAY_MS, MILLISECONDS));
1303	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1304	>	}
1305	>	long startTime = System.nanoTime();
1306	>	assertNull(q.pollLast(timeoutMillis(), MILLISECONDS));
1307	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
1308	>	checkEmpty(q);
1309		}
1310
1311		/**
#	Line 1162 | Line 1313 | public class LinkedBlockingDequeTest ext
1313		* returning timeout status
1314		*/
1315		public void testInterruptedTimedPollLast() throws InterruptedException {
1316	<	Thread t = new Thread(new CheckedRunnable() {
1316	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
1317	>	Thread t = newStartedThread(new CheckedRunnable() {
1318		public void realRun() throws InterruptedException {
1319		LinkedBlockingDeque q = populatedDeque(SIZE);
1320		for (int i = 0; i < SIZE; ++i) {
1321	<	assertEquals(SIZE-i-1, q.pollLast(SHORT_DELAY_MS, MILLISECONDS));
1321	>	assertEquals(SIZE-i-1, q.pollLast(LONG_DELAY_MS, MILLISECONDS));
1322		}
1323	+
1324	+	Thread.currentThread().interrupt();
1325		try {
1326	<	q.pollLast(SMALL_DELAY_MS, MILLISECONDS);
1326	>	q.pollLast(LONG_DELAY_MS, MILLISECONDS);
1327		shouldThrow();
1328		} catch (InterruptedException success) {}
1329	+	assertFalse(Thread.interrupted());
1330	+
1331	+	pleaseInterrupt.countDown();
1332	+	try {
1333	+	q.pollLast(LONG_DELAY_MS, MILLISECONDS);
1334	+	shouldThrow();
1335	+	} catch (InterruptedException success) {}
1336	+	assertFalse(Thread.interrupted());
1337		}});
1338
1339	<	t.start();
1340	<	delay(SHORT_DELAY_MS);
1339	>	await(pleaseInterrupt);
1340	>	assertThreadStaysAlive(t);
1341		t.interrupt();
1342	<	t.join();
1342	>	awaitTermination(t);
1343		}
1344
1345		/**
#	Line 1186 | Line 1348 | public class LinkedBlockingDequeTest ext
1348		*/
1349		public void testTimedPollWithOfferLast() throws InterruptedException {
1350		final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
1351	<	Thread t = new Thread(new CheckedRunnable() {
1351	>	final CheckedBarrier barrier = new CheckedBarrier(2);
1352	>	Thread t = newStartedThread(new CheckedRunnable() {
1353		public void realRun() throws InterruptedException {
1354	<	assertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS));
1354	>	long startTime = System.nanoTime();
1355	>	assertNull(q.poll(timeoutMillis(), MILLISECONDS));
1356	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
1357	>
1358	>	barrier.await();
1359	>
1360		assertSame(zero, q.poll(LONG_DELAY_MS, MILLISECONDS));
1361	+
1362	+	Thread.currentThread().interrupt();
1363		try {
1364		q.poll(LONG_DELAY_MS, MILLISECONDS);
1365		shouldThrow();
1366		} catch (InterruptedException success) {}
1367	+	assertFalse(Thread.interrupted());
1368	+
1369	+	barrier.await();
1370	+	try {
1371	+	q.poll(LONG_DELAY_MS, MILLISECONDS);
1372	+	shouldThrow();
1373	+	} catch (InterruptedException success) {}
1374	+	assertFalse(Thread.interrupted());
1375		}});
1376
1377	<	t.start();
1378	<	delay(SMALL_DELAY_MS);
1379	<	assertTrue(q.offerLast(zero, SHORT_DELAY_MS, MILLISECONDS));
1377	>	barrier.await();
1378	>	long startTime = System.nanoTime();
1379	>	assertTrue(q.offerLast(zero, LONG_DELAY_MS, MILLISECONDS));
1380	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1381	>
1382	>	barrier.await();
1383	>	assertThreadStaysAlive(t);
1384		t.interrupt();
1385	<	t.join();
1385	>	awaitTermination(t);
1386		}
1387
1206	–
1388		/**
1389		* element returns next element, or throws NSEE if empty
1390		*/
#	Line 1220 | Line 1401 | public class LinkedBlockingDequeTest ext
1401		}
1402
1403		/**
1223	–	* remove(x) removes x and returns true if present
1224	–	*/
1225	–	public void testRemoveElement() {
1226	–	LinkedBlockingDeque q = populatedDeque(SIZE);
1227	–	for (int i = 1; i < SIZE; i+=2) {
1228	–	assertTrue(q.contains(i));
1229	–	assertTrue(q.remove(i));
1230	–	assertFalse(q.contains(i));
1231	–	assertTrue(q.contains(i-1));
1232	–	}
1233	–	for (int i = 0; i < SIZE; i+=2) {
1234	–	assertTrue(q.contains(i));
1235	–	assertTrue(q.remove(i));
1236	–	assertFalse(q.contains(i));
1237	–	assertFalse(q.remove(i+1));
1238	–	assertFalse(q.contains(i+1));
1239	–	}
1240	–	assertTrue(q.isEmpty());
1241	–	}
1242	–
1243	–	/**
1404		* contains(x) reports true when elements added but not yet removed
1405		*/
1406		public void testContains() {
#	Line 1320 | Line 1480 | public class LinkedBlockingDequeTest ext
1480		/**
1481		* toArray contains all elements in FIFO order
1482		*/
1483	<	public void testToArray() throws InterruptedException{
1483	>	public void testToArray() throws InterruptedException {
1484		LinkedBlockingDeque q = populatedDeque(SIZE);
1485		Object[] o = q.toArray();
1486		for (int i = 0; i < o.length; i++)
#	Line 1340 | Line 1500 | public class LinkedBlockingDequeTest ext
1500		}
1501
1502		/**
1343	–	* toArray(null) throws NullPointerException
1344	–	*/
1345	–	public void testToArray_NullArg() {
1346	–	LinkedBlockingDeque q = populatedDeque(SIZE);
1347	–	try {
1348	–	q.toArray(null);
1349	–	shouldThrow();
1350	–	} catch (NullPointerException success) {}
1351	–	}
1352	–
1353	–	/**
1503		* toArray(incompatible array type) throws ArrayStoreException
1504		*/
1505		public void testToArray1_BadArg() {
#	Line 1361 | Line 1510 | public class LinkedBlockingDequeTest ext
1510		} catch (ArrayStoreException success) {}
1511		}
1512
1364	–
1513		/**
1514		* iterator iterates through all elements
1515		*/
#	Line 1392 | Line 1540 | public class LinkedBlockingDequeTest ext
1540		assertFalse(it.hasNext());
1541		}
1542
1395	–
1543		/**
1544		* iterator ordering is FIFO
1545		*/
#	Line 1424 | Line 1571 | public class LinkedBlockingDequeTest ext
1571		assertEquals(0, q.size());
1572		}
1573
1427	–
1574		/**
1575		* Descending iterator iterates through all elements
1576		*/
#	Line 1487 | Line 1633 | public class LinkedBlockingDequeTest ext
1633		}
1634		}
1635
1490	–
1636		/**
1637		* toString contains toStrings of elements
1638		*/
#	Line 1495 | Line 1640 | public class LinkedBlockingDequeTest ext
1640		LinkedBlockingDeque q = populatedDeque(SIZE);
1641		String s = q.toString();
1642		for (int i = 0; i < SIZE; ++i) {
1643	<	assertTrue(s.indexOf(String.valueOf(i)) >= 0);
1643	>	assertTrue(s.contains(String.valueOf(i)));
1644		}
1645		}
1646
1502	–
1647		/**
1648		* offer transfers elements across Executor tasks
1649		*/
#	Line 1508 | Line 1652 | public class LinkedBlockingDequeTest ext
1652		q.add(one);
1653		q.add(two);
1654		ExecutorService executor = Executors.newFixedThreadPool(2);
1655	+	final CheckedBarrier threadsStarted = new CheckedBarrier(2);
1656		executor.execute(new CheckedRunnable() {
1657		public void realRun() throws InterruptedException {
1658		assertFalse(q.offer(three));
1659	<	assertTrue(q.offer(three, MEDIUM_DELAY_MS, MILLISECONDS));
1659	>	threadsStarted.await();
1660	>	assertTrue(q.offer(three, LONG_DELAY_MS, MILLISECONDS));
1661		assertEquals(0, q.remainingCapacity());
1662		}});
1663
1664		executor.execute(new CheckedRunnable() {
1665		public void realRun() throws InterruptedException {
1666	<	delay(SMALL_DELAY_MS);
1666	>	threadsStarted.await();
1667		assertSame(one, q.take());
1668		}});
1669
#	Line 1525 | Line 1671 | public class LinkedBlockingDequeTest ext
1671		}
1672
1673		/**
1674	<	* poll retrieves elements across Executor threads
1674	>	* timed poll retrieves elements across Executor threads
1675		*/
1676		public void testPollInExecutor() {
1677		final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
1678	+	final CheckedBarrier threadsStarted = new CheckedBarrier(2);
1679		ExecutorService executor = Executors.newFixedThreadPool(2);
1680		executor.execute(new CheckedRunnable() {
1681		public void realRun() throws InterruptedException {
1682		assertNull(q.poll());
1683	<	assertSame(one, q.poll(MEDIUM_DELAY_MS, MILLISECONDS));
1684	<	assertTrue(q.isEmpty());
1683	>	threadsStarted.await();
1684	>	assertSame(one, q.poll(LONG_DELAY_MS, MILLISECONDS));
1685	>	checkEmpty(q);
1686		}});
1687
1688		executor.execute(new CheckedRunnable() {
1689		public void realRun() throws InterruptedException {
1690	<	delay(SMALL_DELAY_MS);
1690	>	threadsStarted.await();
1691		q.put(one);
1692		}});
1693
#	Line 1550 | Line 1698 | public class LinkedBlockingDequeTest ext
1698		* A deserialized serialized deque has same elements in same order
1699		*/
1700		public void testSerialization() throws Exception {
1701	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1702	<
1555	<	ByteArrayOutputStream bout = new ByteArrayOutputStream(10000);
1556	<	ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout));
1557	<	out.writeObject(q);
1558	<	out.close();
1559	<
1560	<	ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray());
1561	<	ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin));
1562	<	LinkedBlockingDeque r = (LinkedBlockingDeque)in.readObject();
1563	<	assertEquals(q.size(), r.size());
1564	<	while (!q.isEmpty())
1565	<	assertEquals(q.remove(), r.remove());
1566	<	}
1701	>	Queue x = populatedDeque(SIZE);
1702	>	Queue y = serialClone(x);
1703
1704	<	/**
1705	<	* drainTo(null) throws NPE
1706	<	*/
1707	<	public void testDrainToNull() {
1708	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1709	<	try {
1710	<	q.drainTo(null);
1711	<	shouldThrow();
1712	<	} catch (NullPointerException success) {}
1577	<	}
1578	<
1579	<	/**
1580	<	* drainTo(this) throws IAE
1581	<	*/
1582	<	public void testDrainToSelf() {
1583	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1584	<	try {
1585	<	q.drainTo(q);
1586	<	shouldThrow();
1587	<	} catch (IllegalArgumentException success) {}
1704	>	assertNotSame(y, x);
1705	>	assertEquals(x.size(), y.size());
1706	>	assertEquals(x.toString(), y.toString());
1707	>	assertTrue(Arrays.equals(x.toArray(), y.toArray()));
1708	>	while (!x.isEmpty()) {
1709	>	assertFalse(y.isEmpty());
1710	>	assertEquals(x.remove(), y.remove());
1711	>	}
1712	>	assertTrue(y.isEmpty());
1713		}
1714
1715		/**
#	Line 1594 | Line 1719 | public class LinkedBlockingDequeTest ext
1719		LinkedBlockingDeque q = populatedDeque(SIZE);
1720		ArrayList l = new ArrayList();
1721		q.drainTo(l);
1722	<	assertEquals(q.size(), 0);
1723	<	assertEquals(l.size(), SIZE);
1722	>	assertEquals(0, q.size());
1723	>	assertEquals(SIZE, l.size());
1724		for (int i = 0; i < SIZE; ++i)
1725		assertEquals(l.get(i), new Integer(i));
1726		q.add(zero);
#	Line 1605 | Line 1730 | public class LinkedBlockingDequeTest ext
1730		assertTrue(q.contains(one));
1731		l.clear();
1732		q.drainTo(l);
1733	<	assertEquals(q.size(), 0);
1734	<	assertEquals(l.size(), 2);
1733	>	assertEquals(0, q.size());
1734	>	assertEquals(2, l.size());
1735		for (int i = 0; i < 2; ++i)
1736		assertEquals(l.get(i), new Integer(i));
1737		}
#	Line 1632 | Line 1757 | public class LinkedBlockingDequeTest ext
1757		}
1758
1759		/**
1635	–	* drainTo(null, n) throws NPE
1636	–	*/
1637	–	public void testDrainToNullN() {
1638	–	LinkedBlockingDeque q = populatedDeque(SIZE);
1639	–	try {
1640	–	q.drainTo(null, 0);
1641	–	shouldThrow();
1642	–	} catch (NullPointerException success) {}
1643	–	}
1644	–
1645	–	/**
1646	–	* drainTo(this, n) throws IAE
1647	–	*/
1648	–	public void testDrainToSelfN() {
1649	–	LinkedBlockingDeque q = populatedDeque(SIZE);
1650	–	try {
1651	–	q.drainTo(q, 0);
1652	–	shouldThrow();
1653	–	} catch (IllegalArgumentException success) {}
1654	–	}
1655	–
1656	–	/**
1760		* drainTo(c, n) empties first min(n, size) elements of queue into c
1761		*/
1762		public void testDrainToN() {
#	Line 1664 | Line 1767 | public class LinkedBlockingDequeTest ext
1767		ArrayList l = new ArrayList();
1768		q.drainTo(l, i);
1769		int k = (i < SIZE) ? i : SIZE;
1770	<	assertEquals(l.size(), k);
1771	<	assertEquals(q.size(), SIZE-k);
1770	>	assertEquals(k, l.size());
1771	>	assertEquals(SIZE-k, q.size());
1772		for (int j = 0; j < k; ++j)
1773		assertEquals(l.get(j), new Integer(j));
1774		while (q.poll() != null) ;
1775		}
1776		}
1777
1778	+	/**
1779	+	* remove(null), contains(null) always return false
1780	+	*/
1781	+	public void testNeverContainsNull() {
1782	+	Deque<?>[] qs = {
1783	+	new LinkedBlockingDeque<Object>(),
1784	+	populatedDeque(2),
1785	+	};
1786	+
1787	+	for (Deque<?> q : qs) {
1788	+	assertFalse(q.contains(null));
1789	+	assertFalse(q.remove(null));
1790	+	assertFalse(q.removeFirstOccurrence(null));
1791	+	assertFalse(q.removeLastOccurrence(null));
1792	+	}
1793	+	}
1794	+
1795		}

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