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Comparing jsr166/src/test/tck/LinkedBlockingDequeTest.java (file contents):
Revision 1.47 by jsr166, Tue Feb 21 02:04:17 2012 UTC vs.
Revision 1.84 by jsr166, Sun Aug 11 22:29:27 2019 UTC

#	Line 4 | Line 4
4		* http://creativecommons.org/publicdomain/zero/1.0/
5		*/
6
7	<	import junit.framework.*;
8	<	import java.util.Arrays;
7	>	import static java.util.concurrent.TimeUnit.MILLISECONDS;
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;
#	Line 17 | Line 19 | import java.util.concurrent.CountDownLat
19		import java.util.concurrent.Executors;
20		import java.util.concurrent.ExecutorService;
21		import java.util.concurrent.LinkedBlockingDeque;
22	<	import static java.util.concurrent.TimeUnit.MILLISECONDS;
22	>
23	>	import junit.framework.Test;
24
25		public class LinkedBlockingDequeTest extends JSR166TestCase {
26
#	Line 34 | Line 37 | public class LinkedBlockingDequeTest ext
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		* Returns a new deque of given size containing consecutive
59	<	* Integers 0 ... n.
59	>	* Integers 0 ... n - 1.
60		*/
61	<	private LinkedBlockingDeque<Integer> populatedDeque(int n) {
61	>	private static LinkedBlockingDeque<Integer> populatedDeque(int n) {
62		LinkedBlockingDeque<Integer> q =
63		new LinkedBlockingDeque<Integer>(n);
64		assertTrue(q.isEmpty());
#	Line 56 | Line 67 | public class LinkedBlockingDequeTest ext
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 79 | 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 144 | 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 183 | 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 213 | 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 273 | 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 288 | 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 364 | Line 377 | public class LinkedBlockingDequeTest ext
377		*/
378		public void testConstructor5() {
379		Integer[] ints = new Integer[SIZE];
380	<	for (int i = 0; i < SIZE-1; ++i)
380	>	for (int i = 0; i < SIZE - 1; ++i)
381		ints[i] = i;
382		Collection<Integer> elements = Arrays.asList(ints);
383		try {
#	Line 404 | 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
#	Line 421 | Line 434 | public class LinkedBlockingDequeTest ext
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 479 | 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);
#	Line 493 | Line 506 | public class LinkedBlockingDequeTest ext
506		}
507
508		/**
509	<	* addAll(this) throws IAE
509	>	* addAll(this) throws IllegalArgumentException
510		*/
511		public void testAddAllSelf() {
512		LinkedBlockingDeque q = populatedDeque(SIZE);
#	Line 510 | Line 523 | public class LinkedBlockingDequeTest ext
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)
526	>	for (int i = 0; i < SIZE - 1; ++i)
527		ints[i] = new Integer(i);
528		Collection<Integer> elements = Arrays.asList(ints);
529		try {
#	Line 555 | Line 568 | public class LinkedBlockingDequeTest ext
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 591 | Line 604 | public class LinkedBlockingDequeTest ext
604		}});
605
606		await(pleaseInterrupt);
607	<	assertThreadStaysAlive(t);
607	>	if (randomBoolean()) assertThreadBlocks(t, Thread.State.WAITING);
608		t.interrupt();
609		awaitTermination(t);
610		assertEquals(SIZE, q.size());
#	Line 613 | Line 626 | public class LinkedBlockingDequeTest ext
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);
#	Line 626 | Line 646 | public class LinkedBlockingDequeTest ext
646		assertEquals(0, q.take());
647
648		await(pleaseInterrupt);
649	<	assertThreadStaysAlive(t);
649	>	if (randomBoolean()) assertThreadBlocks(t, Thread.State.WAITING);
650		t.interrupt();
651		awaitTermination(t);
652		assertEquals(0, q.remainingCapacity());
#	Line 635 | Line 655 | public class LinkedBlockingDequeTest ext
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		final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
661		Thread t = newStartedThread(new CheckedRunnable() {
#	Line 643 | Line 663 | public class LinkedBlockingDequeTest ext
663		q.put(new Object());
664		q.put(new Object());
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(), randomTimeout(), randomTimeUnit());
673	+	shouldThrow();
674	+	} catch (InterruptedException success) {}
675	+	assertFalse(Thread.interrupted());
676	+
677		pleaseInterrupt.countDown();
678		try {
679	<	q.offer(new Object(), 2 * LONG_DELAY_MS, MILLISECONDS);
679	>	q.offer(new Object(), LONG_DELAY_MS, MILLISECONDS);
680		shouldThrow();
681		} catch (InterruptedException success) {}
682	+	assertFalse(Thread.interrupted());
683	+
684	+	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
685		}});
686
687		await(pleaseInterrupt);
688	<	assertThreadStaysAlive(t);
688	>	if (randomBoolean()) assertThreadBlocks(t, Thread.State.TIMED_WAITING);
689		t.interrupt();
690		awaitTermination(t);
691		}
#	Line 676 | Line 708 | public class LinkedBlockingDequeTest ext
708		final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
709		Thread t = newStartedThread(new CheckedRunnable() {
710		public void realRun() throws InterruptedException {
711	<	for (int i = 0; i < SIZE; ++i) {
680	<	assertEquals(i, q.take());
681	<	}
711	>	for (int i = 0; i < SIZE; i++) assertEquals(i, q.take());
712
713		Thread.currentThread().interrupt();
714		try {
#	Line 696 | Line 726 | public class LinkedBlockingDequeTest ext
726		}});
727
728		await(pleaseInterrupt);
729	<	assertThreadStaysAlive(t);
729	>	if (randomBoolean()) assertThreadBlocks(t, Thread.State.WAITING);
730		t.interrupt();
731		awaitTermination(t);
732		}
#	Line 745 | Line 775 | public class LinkedBlockingDequeTest ext
775		*/
776		public void testInterruptedTimedPoll() throws InterruptedException {
777		final BlockingQueue<Integer> q = populatedDeque(SIZE);
778	<	final CountDownLatch aboutToWait = new CountDownLatch(1);
778	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
779		Thread t = newStartedThread(new CheckedRunnable() {
780		public void realRun() throws InterruptedException {
781	<	for (int i = 0; i < SIZE; ++i) {
782	<	long t0 = System.nanoTime();
781	>	long startTime = System.nanoTime();
782	>	for (int i = 0; i < SIZE; i++)
783		assertEquals(i, (int) q.poll(LONG_DELAY_MS, MILLISECONDS));
784	<	assertTrue(millisElapsedSince(t0) < SMALL_DELAY_MS);
785	<	}
756	<	long t0 = System.nanoTime();
757	<	aboutToWait.countDown();
784	>
785	>	Thread.currentThread().interrupt();
786		try {
787	<	q.poll(MEDIUM_DELAY_MS, MILLISECONDS);
787	>	q.poll(randomTimeout(), randomTimeUnit());
788		shouldThrow();
789	<	} catch (InterruptedException success) {
790	<	assertTrue(millisElapsedSince(t0) < MEDIUM_DELAY_MS);
791	<	}
789	>	} catch (InterruptedException success) {}
790	>	assertFalse(Thread.interrupted());
791	>
792	>	pleaseInterrupt.countDown();
793	>	try {
794	>	q.poll(LONG_DELAY_MS, MILLISECONDS);
795	>	shouldThrow();
796	>	} catch (InterruptedException success) {}
797	>	assertFalse(Thread.interrupted());
798	>
799	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
800		}});
801
802	<	aboutToWait.await();
803	<	waitForThreadToEnterWaitState(t, SMALL_DELAY_MS);
802	>	await(pleaseInterrupt);
803	>	if (randomBoolean()) assertThreadBlocks(t, Thread.State.TIMED_WAITING);
804		t.interrupt();
805	<	awaitTermination(t, MEDIUM_DELAY_MS);
805	>	awaitTermination(t);
806		checkEmpty(q);
807		}
808
#	Line 787 | Line 823 | public class LinkedBlockingDequeTest ext
823		public void testPutFirst() throws InterruptedException {
824		LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
825		for (int i = 0; i < SIZE; ++i) {
826	<	Integer I = new Integer(i);
827	<	q.putFirst(I);
828	<	assertTrue(q.contains(I));
826	>	Integer x = new Integer(i);
827	>	q.putFirst(x);
828	>	assertTrue(q.contains(x));
829		}
830		assertEquals(0, q.remainingCapacity());
831		}
#	Line 823 | Line 859 | public class LinkedBlockingDequeTest ext
859		}});
860
861		await(pleaseInterrupt);
862	<	assertThreadStaysAlive(t);
862	>	if (randomBoolean()) assertThreadBlocks(t, Thread.State.WAITING);
863		t.interrupt();
864		awaitTermination(t);
865		assertEquals(SIZE, q.size());
#	Line 858 | Line 894 | public class LinkedBlockingDequeTest ext
894		assertEquals(capacity - 1, q.take());
895
896		await(pleaseInterrupt);
897	<	assertThreadStaysAlive(t);
897	>	if (randomBoolean()) assertThreadBlocks(t, Thread.State.WAITING);
898		t.interrupt();
899		awaitTermination(t);
900		assertEquals(0, q.remainingCapacity());
#	Line 867 | Line 903 | public class LinkedBlockingDequeTest ext
903		/**
904		* timed offerFirst times out if full and elements not taken
905		*/
906	<	public void testTimedOfferFirst() throws InterruptedException {
906	>	public void testTimedOfferFirst() {
907		final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
908		final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
909		Thread t = newStartedThread(new CheckedRunnable() {
#	Line 875 | Line 911 | public class LinkedBlockingDequeTest ext
911		q.putFirst(new Object());
912		q.putFirst(new Object());
913		long startTime = System.nanoTime();
914	+
915		assertFalse(q.offerFirst(new Object(), timeoutMillis(), MILLISECONDS));
916		assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
917	+
918	+	Thread.currentThread().interrupt();
919	+	try {
920	+	q.offerFirst(new Object(), randomTimeout(), randomTimeUnit());
921	+	shouldThrow();
922	+	} catch (InterruptedException success) {}
923	+	assertFalse(Thread.interrupted());
924	+
925		pleaseInterrupt.countDown();
926		try {
927	<	q.offerFirst(new Object(), 2 * LONG_DELAY_MS, MILLISECONDS);
927	>	q.offerFirst(new Object(), LONG_DELAY_MS, MILLISECONDS);
928		shouldThrow();
929		} catch (InterruptedException success) {}
930	+	assertFalse(Thread.interrupted());
931	+
932	+	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
933		}});
934
935		await(pleaseInterrupt);
936	<	assertThreadStaysAlive(t);
936	>	if (randomBoolean()) assertThreadBlocks(t, Thread.State.TIMED_WAITING);
937		t.interrupt();
938		awaitTermination(t);
939		}
#	Line 917 | Line 965 | public class LinkedBlockingDequeTest ext
965		}});
966
967		await(threadStarted);
968	<	assertThreadStaysAlive(t);
968	>	if (randomBoolean()) assertThreadBlocks(t, Thread.State.WAITING);
969		t.interrupt();
970		awaitTermination(t);
971		}
#	Line 958 | Line 1006 | public class LinkedBlockingDequeTest ext
1006		}});
1007
1008		await(threadStarted);
1009	<	assertThreadStaysAlive(t);
1009	>	if (randomBoolean()) assertThreadBlocks(t, Thread.State.WAITING);
1010		t.interrupt();
1011		awaitTermination(t);
1012		}
#	Line 990 | Line 1038 | public class LinkedBlockingDequeTest ext
1038		final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
1039		Thread t = newStartedThread(new CheckedRunnable() {
1040		public void realRun() throws InterruptedException {
1041	<	for (int i = 0; i < SIZE; ++i) {
994	<	assertEquals(i, q.takeFirst());
995	<	}
1041	>	for (int i = 0; i < SIZE; i++) assertEquals(i, q.takeFirst());
1042
1043		Thread.currentThread().interrupt();
1044		try {
#	Line 1010 | Line 1056 | public class LinkedBlockingDequeTest ext
1056		}});
1057
1058		await(pleaseInterrupt);
1059	<	assertThreadStaysAlive(t);
1059	>	if (randomBoolean()) assertThreadBlocks(t, Thread.State.WAITING);
1060		t.interrupt();
1061		awaitTermination(t);
1062		}
#	Line 1047 | Line 1093 | public class LinkedBlockingDequeTest ext
1093		* returning timeout status
1094		*/
1095		public void testInterruptedTimedPollFirst() throws InterruptedException {
1096	+	final LinkedBlockingDeque q = populatedDeque(SIZE);
1097		final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
1098		Thread t = newStartedThread(new CheckedRunnable() {
1099		public void realRun() throws InterruptedException {
1100	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1101	<	for (int i = 0; i < SIZE; ++i) {
1100	>	long startTime = System.nanoTime();
1101	>	for (int i = 0; i < SIZE; i++)
1102		assertEquals(i, q.pollFirst(LONG_DELAY_MS, MILLISECONDS));
1056	–	}
1103
1104		Thread.currentThread().interrupt();
1105		try {
1106	<	q.pollFirst(SMALL_DELAY_MS, MILLISECONDS);
1106	>	q.pollFirst(randomTimeout(), randomTimeUnit());
1107		shouldThrow();
1108		} catch (InterruptedException success) {}
1109		assertFalse(Thread.interrupted());
1110
1111		pleaseInterrupt.countDown();
1112		try {
1113	<	q.pollFirst(SMALL_DELAY_MS, MILLISECONDS);
1113	>	q.pollFirst(LONG_DELAY_MS, MILLISECONDS);
1114		shouldThrow();
1115		} catch (InterruptedException success) {}
1116		assertFalse(Thread.interrupted());
1117	+
1118	+	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1119		}});
1120
1121		await(pleaseInterrupt);
1122	<	assertThreadStaysAlive(t);
1122	>	if (randomBoolean()) assertThreadBlocks(t, Thread.State.TIMED_WAITING);
1123		t.interrupt();
1124		awaitTermination(t);
1125		}
#	Line 1095 | Line 1143 | public class LinkedBlockingDequeTest ext
1143
1144		Thread.currentThread().interrupt();
1145		try {
1146	<	q.pollFirst(LONG_DELAY_MS, MILLISECONDS);
1146	>	q.pollFirst(randomTimeout(), randomTimeUnit());
1147		shouldThrow();
1148		} catch (InterruptedException success) {}
1149
#	Line 1104 | Line 1152 | public class LinkedBlockingDequeTest ext
1152		q.pollFirst(LONG_DELAY_MS, MILLISECONDS);
1153		shouldThrow();
1154		} catch (InterruptedException success) {}
1155	+	assertFalse(Thread.interrupted());
1156	+
1157		assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1158		}});
1159
#	Line 1112 | Line 1162 | public class LinkedBlockingDequeTest ext
1162		assertTrue(q.offerFirst(zero, LONG_DELAY_MS, MILLISECONDS));
1163		assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1164		barrier.await();
1165	<	assertThreadStaysAlive(t);
1165	>	if (randomBoolean()) assertThreadBlocks(t, Thread.State.TIMED_WAITING);
1166		t.interrupt();
1167		awaitTermination(t);
1168		}
#	Line 1134 | Line 1184 | public class LinkedBlockingDequeTest ext
1184		public void testPutLast() throws InterruptedException {
1185		LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
1186		for (int i = 0; i < SIZE; ++i) {
1187	<	Integer I = new Integer(i);
1188	<	q.putLast(I);
1189	<	assertTrue(q.contains(I));
1187	>	Integer x = new Integer(i);
1188	>	q.putLast(x);
1189	>	assertTrue(q.contains(x));
1190		}
1191		assertEquals(0, q.remainingCapacity());
1192		}
#	Line 1170 | Line 1220 | public class LinkedBlockingDequeTest ext
1220		}});
1221
1222		await(pleaseInterrupt);
1223	<	assertThreadStaysAlive(t);
1223	>	if (randomBoolean()) assertThreadBlocks(t, Thread.State.WAITING);
1224		t.interrupt();
1225		awaitTermination(t);
1226		assertEquals(SIZE, q.size());
#	Line 1192 | Line 1242 | public class LinkedBlockingDequeTest ext
1242		pleaseTake.countDown();
1243		q.putLast(86);
1244
1245	+	Thread.currentThread().interrupt();
1246	+	try {
1247	+	q.putLast(99);
1248	+	shouldThrow();
1249	+	} catch (InterruptedException success) {}
1250	+	assertFalse(Thread.interrupted());
1251	+
1252		pleaseInterrupt.countDown();
1253		try {
1254		q.putLast(99);
#	Line 1205 | Line 1262 | public class LinkedBlockingDequeTest ext
1262		assertEquals(0, q.take());
1263
1264		await(pleaseInterrupt);
1265	<	assertThreadStaysAlive(t);
1265	>	if (randomBoolean()) assertThreadBlocks(t, Thread.State.WAITING);
1266		t.interrupt();
1267		awaitTermination(t);
1268		assertEquals(0, q.remainingCapacity());
#	Line 1214 | Line 1271 | public class LinkedBlockingDequeTest ext
1271		/**
1272		* timed offerLast times out if full and elements not taken
1273		*/
1274	<	public void testTimedOfferLast() throws InterruptedException {
1274	>	public void testTimedOfferLast() {
1275		final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
1276		final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
1277		Thread t = newStartedThread(new CheckedRunnable() {
#	Line 1222 | Line 1279 | public class LinkedBlockingDequeTest ext
1279		q.putLast(new Object());
1280		q.putLast(new Object());
1281		long startTime = System.nanoTime();
1282	+
1283		assertFalse(q.offerLast(new Object(), timeoutMillis(), MILLISECONDS));
1284		assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
1285	+
1286	+	Thread.currentThread().interrupt();
1287	+	try {
1288	+	q.offerLast(new Object(), randomTimeout(), randomTimeUnit());
1289	+	shouldThrow();
1290	+	} catch (InterruptedException success) {}
1291	+
1292		pleaseInterrupt.countDown();
1293		try {
1294	<	q.offerLast(new Object(), 2 * LONG_DELAY_MS, MILLISECONDS);
1294	>	q.offerLast(new Object(), LONG_DELAY_MS, MILLISECONDS);
1295		shouldThrow();
1296		} catch (InterruptedException success) {}
1297	+
1298	+	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1299		}});
1300
1301		await(pleaseInterrupt);
1302	<	assertThreadStaysAlive(t);
1302	>	if (randomBoolean()) assertThreadBlocks(t, Thread.State.TIMED_WAITING);
1303		t.interrupt();
1304		awaitTermination(t);
1305		}
#	Line 1243 | Line 1310 | public class LinkedBlockingDequeTest ext
1310		public void testTakeLast() throws InterruptedException {
1311		LinkedBlockingDeque q = populatedDeque(SIZE);
1312		for (int i = 0; i < SIZE; ++i) {
1313	<	assertEquals(SIZE-i-1, q.takeLast());
1313	>	assertEquals(SIZE - i - 1, q.takeLast());
1314		}
1315		}
1316
#	Line 1255 | Line 1322 | public class LinkedBlockingDequeTest ext
1322		final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
1323		Thread t = newStartedThread(new CheckedRunnable() {
1324		public void realRun() throws InterruptedException {
1325	<	for (int i = 0; i < SIZE; ++i) {
1326	<	assertEquals(SIZE-i-1, q.takeLast());
1260	<	}
1325	>	for (int i = 0; i < SIZE; i++)
1326	>	assertEquals(SIZE - i - 1, q.takeLast());
1327
1328		Thread.currentThread().interrupt();
1329		try {
#	Line 1275 | Line 1341 | public class LinkedBlockingDequeTest ext
1341		}});
1342
1343		await(pleaseInterrupt);
1344	<	assertThreadStaysAlive(t);
1344	>	if (randomBoolean()) assertThreadBlocks(t, Thread.State.WAITING);
1345		t.interrupt();
1346		awaitTermination(t);
1347		}
#	Line 1286 | Line 1352 | public class LinkedBlockingDequeTest ext
1352		public void testTimedPollLast0() throws InterruptedException {
1353		LinkedBlockingDeque q = populatedDeque(SIZE);
1354		for (int i = 0; i < SIZE; ++i) {
1355	<	assertEquals(SIZE-i-1, q.pollLast(0, MILLISECONDS));
1355	>	assertEquals(SIZE - i - 1, q.pollLast(0, MILLISECONDS));
1356		}
1357		assertNull(q.pollLast(0, MILLISECONDS));
1358		}
#	Line 1298 | Line 1364 | public class LinkedBlockingDequeTest ext
1364		LinkedBlockingDeque q = populatedDeque(SIZE);
1365		for (int i = 0; i < SIZE; ++i) {
1366		long startTime = System.nanoTime();
1367	<	assertEquals(SIZE-i-1, q.pollLast(LONG_DELAY_MS, MILLISECONDS));
1367	>	assertEquals(SIZE - i - 1, q.pollLast(LONG_DELAY_MS, MILLISECONDS));
1368		assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1369		}
1370		long startTime = System.nanoTime();
#	Line 1312 | Line 1378 | public class LinkedBlockingDequeTest ext
1378		* returning timeout status
1379		*/
1380		public void testInterruptedTimedPollLast() throws InterruptedException {
1381	+	final LinkedBlockingDeque q = populatedDeque(SIZE);
1382		final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
1383		Thread t = newStartedThread(new CheckedRunnable() {
1384		public void realRun() throws InterruptedException {
1385	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1386	<	for (int i = 0; i < SIZE; ++i) {
1387	<	assertEquals(SIZE-i-1, q.pollLast(LONG_DELAY_MS, MILLISECONDS));
1388	<	}
1385	>	long startTime = System.nanoTime();
1386	>	for (int i = 0; i < SIZE; i++)
1387	>	assertEquals(SIZE - i - 1,
1388	>	q.pollLast(LONG_DELAY_MS, MILLISECONDS));
1389
1390		Thread.currentThread().interrupt();
1391		try {
1392	<	q.pollLast(LONG_DELAY_MS, MILLISECONDS);
1392	>	q.pollLast(randomTimeout(), randomTimeUnit());
1393		shouldThrow();
1394		} catch (InterruptedException success) {}
1395		assertFalse(Thread.interrupted());
#	Line 1333 | Line 1400 | public class LinkedBlockingDequeTest ext
1400		shouldThrow();
1401		} catch (InterruptedException success) {}
1402		assertFalse(Thread.interrupted());
1403	+
1404	+	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1405		}});
1406
1407		await(pleaseInterrupt);
1408	<	assertThreadStaysAlive(t);
1408	>	if (randomBoolean()) assertThreadBlocks(t, Thread.State.TIMED_WAITING);
1409		t.interrupt();
1410		awaitTermination(t);
1411	+	checkEmpty(q);
1412		}
1413
1414		/**
#	Line 1360 | Line 1430 | public class LinkedBlockingDequeTest ext
1430
1431		Thread.currentThread().interrupt();
1432		try {
1433	<	q.poll(LONG_DELAY_MS, MILLISECONDS);
1433	>	q.poll(randomTimeout(), randomTimeUnit());
1434		shouldThrow();
1435		} catch (InterruptedException success) {}
1436		assertFalse(Thread.interrupted());
#	Line 1371 | Line 1441 | public class LinkedBlockingDequeTest ext
1441		shouldThrow();
1442		} catch (InterruptedException success) {}
1443		assertFalse(Thread.interrupted());
1444	+
1445	+	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1446		}});
1447
1448		barrier.await();
#	Line 1379 | Line 1451 | public class LinkedBlockingDequeTest ext
1451		assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1452
1453		barrier.await();
1454	<	assertThreadStaysAlive(t);
1454	>	if (randomBoolean()) assertThreadBlocks(t, Thread.State.TIMED_WAITING);
1455		t.interrupt();
1456		awaitTermination(t);
1457		}
#	Line 1455 | Line 1527 | public class LinkedBlockingDequeTest ext
1527		assertTrue(changed);
1528
1529		assertTrue(q.containsAll(p));
1530	<	assertEquals(SIZE-i, q.size());
1530	>	assertEquals(SIZE - i, q.size());
1531		p.remove();
1532		}
1533		}
#	Line 1468 | Line 1540 | public class LinkedBlockingDequeTest ext
1540		LinkedBlockingDeque q = populatedDeque(SIZE);
1541		LinkedBlockingDeque p = populatedDeque(i);
1542		assertTrue(q.removeAll(p));
1543	<	assertEquals(SIZE-i, q.size());
1543	>	assertEquals(SIZE - i, q.size());
1544		for (int j = 0; j < i; ++j) {
1545	<	Integer I = (Integer)(p.remove());
1546	<	assertFalse(q.contains(I));
1545	>	Integer x = (Integer)(p.remove());
1546	>	assertFalse(q.contains(x));
1547		}
1548		}
1549		}
#	Line 1481 | Line 1553 | public class LinkedBlockingDequeTest ext
1553		*/
1554		public void testToArray() throws InterruptedException {
1555		LinkedBlockingDeque q = populatedDeque(SIZE);
1556	<	Object[] o = q.toArray();
1557	<	for (int i = 0; i < o.length; i++)
1558	<	assertSame(o[i], q.poll());
1556	>	Object[] a = q.toArray();
1557	>	assertSame(Object[].class, a.getClass());
1558	>	for (Object o : a)
1559	>	assertSame(o, q.poll());
1560	>	assertTrue(q.isEmpty());
1561		}
1562
1563		/**
#	Line 1494 | Line 1568 | public class LinkedBlockingDequeTest ext
1568		Integer[] ints = new Integer[SIZE];
1569		Integer[] array = q.toArray(ints);
1570		assertSame(ints, array);
1571	<	for (int i = 0; i < ints.length; i++)
1572	<	assertSame(ints[i], q.remove());
1571	>	for (Integer o : ints)
1572	>	assertSame(o, q.remove());
1573	>	assertTrue(q.isEmpty());
1574		}
1575
1576		/**
#	Line 1515 | Line 1590 | public class LinkedBlockingDequeTest ext
1590		public void testIterator() throws InterruptedException {
1591		LinkedBlockingDeque q = populatedDeque(SIZE);
1592		Iterator it = q.iterator();
1593	<	while (it.hasNext()) {
1593	>	int i;
1594	>	for (i = 0; it.hasNext(); i++)
1595	>	assertTrue(q.contains(it.next()));
1596	>	assertEquals(i, SIZE);
1597	>	assertIteratorExhausted(it);
1598	>
1599	>	it = q.iterator();
1600	>	for (i = 0; it.hasNext(); i++)
1601		assertEquals(it.next(), q.take());
1602	<	}
1602	>	assertEquals(i, SIZE);
1603	>	assertIteratorExhausted(it);
1604	>	}
1605	>
1606	>	/**
1607	>	* iterator of empty collection has no elements
1608	>	*/
1609	>	public void testEmptyIterator() {
1610	>	Deque c = new LinkedBlockingDeque();
1611	>	assertIteratorExhausted(c.iterator());
1612	>	assertIteratorExhausted(c.descendingIterator());
1613		}
1614
1615		/**
#	Line 1650 | Line 1742 | public class LinkedBlockingDequeTest ext
1742		final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
1743		q.add(one);
1744		q.add(two);
1653	–	ExecutorService executor = Executors.newFixedThreadPool(2);
1745		final CheckedBarrier threadsStarted = new CheckedBarrier(2);
1746	<	executor.execute(new CheckedRunnable() {
1747	<	public void realRun() throws InterruptedException {
1748	<	assertFalse(q.offer(three));
1749	<	threadsStarted.await();
1750	<	assertTrue(q.offer(three, LONG_DELAY_MS, MILLISECONDS));
1751	<	assertEquals(0, q.remainingCapacity());
1752	<	}});
1753	<
1754	<	executor.execute(new CheckedRunnable() {
1755	<	public void realRun() throws InterruptedException {
1756	<	threadsStarted.await();
1757	<	assertSame(one, q.take());
1758	<	}});
1759	<
1760	<	joinPool(executor);
1746	>	final ExecutorService executor = Executors.newFixedThreadPool(2);
1747	>	try (PoolCleaner cleaner = cleaner(executor)) {
1748	>	executor.execute(new CheckedRunnable() {
1749	>	public void realRun() throws InterruptedException {
1750	>	assertFalse(q.offer(three));
1751	>	threadsStarted.await();
1752	>	assertTrue(q.offer(three, LONG_DELAY_MS, MILLISECONDS));
1753	>	assertEquals(0, q.remainingCapacity());
1754	>	}});
1755	>
1756	>	executor.execute(new CheckedRunnable() {
1757	>	public void realRun() throws InterruptedException {
1758	>	threadsStarted.await();
1759	>	assertSame(one, q.take());
1760	>	}});
1761	>	}
1762		}
1763
1764		/**
#	Line 1675 | Line 1767 | public class LinkedBlockingDequeTest ext
1767		public void testPollInExecutor() {
1768		final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
1769		final CheckedBarrier threadsStarted = new CheckedBarrier(2);
1770	<	ExecutorService executor = Executors.newFixedThreadPool(2);
1771	<	executor.execute(new CheckedRunnable() {
1772	<	public void realRun() throws InterruptedException {
1773	<	assertNull(q.poll());
1774	<	threadsStarted.await();
1775	<	assertSame(one, q.poll(LONG_DELAY_MS, MILLISECONDS));
1776	<	checkEmpty(q);
1777	<	}});
1778	<
1779	<	executor.execute(new CheckedRunnable() {
1780	<	public void realRun() throws InterruptedException {
1781	<	threadsStarted.await();
1782	<	q.put(one);
1783	<	}});
1784	<
1785	<	joinPool(executor);
1770	>	final ExecutorService executor = Executors.newFixedThreadPool(2);
1771	>	try (PoolCleaner cleaner = cleaner(executor)) {
1772	>	executor.execute(new CheckedRunnable() {
1773	>	public void realRun() throws InterruptedException {
1774	>	assertNull(q.poll());
1775	>	threadsStarted.await();
1776	>	assertSame(one, q.poll(LONG_DELAY_MS, MILLISECONDS));
1777	>	checkEmpty(q);
1778	>	}});
1779	>
1780	>	executor.execute(new CheckedRunnable() {
1781	>	public void realRun() throws InterruptedException {
1782	>	threadsStarted.await();
1783	>	q.put(one);
1784	>	}});
1785	>	}
1786		}
1787
1788		/**
1789	<	* A deserialized serialized deque has same elements in same order
1789	>	* A deserialized/reserialized deque has same elements in same order
1790		*/
1791		public void testSerialization() throws Exception {
1792		Queue x = populatedDeque(SIZE);
1793		Queue y = serialClone(x);
1794
1795	<	assertTrue(x != y);
1795	>	assertNotSame(y, x);
1796		assertEquals(x.size(), y.size());
1797		assertEquals(x.toString(), y.toString());
1798		assertTrue(Arrays.equals(x.toArray(), y.toArray()));
#	Line 1742 | Line 1834 | public class LinkedBlockingDequeTest ext
1834		final LinkedBlockingDeque q = populatedDeque(SIZE);
1835		Thread t = new Thread(new CheckedRunnable() {
1836		public void realRun() throws InterruptedException {
1837	<	q.put(new Integer(SIZE+1));
1837	>	q.put(new Integer(SIZE + 1));
1838		}});
1839
1840		t.start();
#	Line 1767 | Line 1859 | public class LinkedBlockingDequeTest ext
1859		q.drainTo(l, i);
1860		int k = (i < SIZE) ? i : SIZE;
1861		assertEquals(k, l.size());
1862	<	assertEquals(SIZE-k, q.size());
1862	>	assertEquals(SIZE - k, q.size());
1863		for (int j = 0; j < k; ++j)
1864		assertEquals(l.get(j), new Integer(j));
1865	<	while (q.poll() != null) ;
1865	>	do {} while (q.poll() != null);
1866	>	}
1867	>	}
1868	>
1869	>	/**
1870	>	* remove(null), contains(null) always return false
1871	>	*/
1872	>	public void testNeverContainsNull() {
1873	>	Deque<?>[] qs = {
1874	>	new LinkedBlockingDeque<Object>(),
1875	>	populatedDeque(2),
1876	>	};
1877	>
1878	>	for (Deque<?> q : qs) {
1879	>	assertFalse(q.contains(null));
1880	>	assertFalse(q.remove(null));
1881	>	assertFalse(q.removeFirstOccurrence(null));
1882	>	assertFalse(q.removeLastOccurrence(null));
1883		}
1884		}
1885

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