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Comparing jsr166/src/test/tck/LinkedBlockingDequeTest.java (file contents):
Revision 1.12 by jsr166, Sat Nov 21 10:29:50 2009 UTC vs.
Revision 1.55 by jsr166, Sat Jan 17 22:55:06 2015 UTC

#	Line 1 | Line 1
1		/*
2		* Written by Doug Lea with assistance from members of JCP JSR-166
3		* Expert Group and released to the public domain, as explained at
4	<	* http://creativecommons.org/licenses/publicdomain
4	>	* http://creativecommons.org/publicdomain/zero/1.0/
5		*/
6
7	–	import junit.framework.*;
8	–	import java.util.*;
9	–	import java.util.concurrent.*;
7		import static java.util.concurrent.TimeUnit.MILLISECONDS;
8	<	import java.io.*;
8	>
9	>	import java.util.ArrayList;
10	>	import java.util.Arrays;
11	>	import java.util.Collection;
12	>	import java.util.Deque;
13	>	import java.util.Iterator;
14	>	import java.util.NoSuchElementException;
15	>	import java.util.Queue;
16	>	import java.util.concurrent.BlockingDeque;
17	>	import java.util.concurrent.BlockingQueue;
18	>	import java.util.concurrent.CountDownLatch;
19	>	import java.util.concurrent.Executors;
20	>	import java.util.concurrent.ExecutorService;
21	>	import java.util.concurrent.LinkedBlockingDeque;
22	>
23	>	import junit.framework.Test;
24
25		public class LinkedBlockingDequeTest extends JSR166TestCase {
26	+
27	+	public static class Unbounded extends BlockingQueueTest {
28	+	protected BlockingQueue emptyCollection() {
29	+	return new LinkedBlockingDeque();
30	+	}
31	+	}
32	+
33	+	public static class Bounded extends BlockingQueueTest {
34	+	protected BlockingQueue emptyCollection() {
35	+	return new LinkedBlockingDeque(SIZE);
36	+	}
37	+	}
38	+
39		public static void main(String[] args) {
40	<	junit.textui.TestRunner.run (suite());
40	>	junit.textui.TestRunner.run(suite());
41		}
42
43		public static Test suite() {
44	<	return new TestSuite(LinkedBlockingDequeTest.class);
44	>	return newTestSuite(LinkedBlockingDequeTest.class,
45	>	new Unbounded().testSuite(),
46	>	new Bounded().testSuite());
47		}
48
49		/**
50	<	* Create a deque of given size containing consecutive
50	>	* Returns a new deque of given size containing consecutive
51		* Integers 0 ... n.
52		*/
53	<	private LinkedBlockingDeque populatedDeque(int n) {
54	<	LinkedBlockingDeque q = new LinkedBlockingDeque(n);
53	>	private LinkedBlockingDeque<Integer> populatedDeque(int n) {
54	>	LinkedBlockingDeque<Integer> q =
55	>	new LinkedBlockingDeque<Integer>(n);
56		assertTrue(q.isEmpty());
57		for (int i = 0; i < n; i++)
58		assertTrue(q.offer(new Integer(i)));
#	Line 64 | Line 92 | public class LinkedBlockingDequeTest ext
92		}
93
94		/**
95	<	* offer(null) throws NPE
95	>	* offerFirst(null) throws NullPointerException
96		*/
97		public void testOfferFirstNull() {
98	+	LinkedBlockingDeque q = new LinkedBlockingDeque();
99		try {
71	–	LinkedBlockingDeque q = new LinkedBlockingDeque();
100		q.offerFirst(null);
101		shouldThrow();
102		} catch (NullPointerException success) {}
103		}
104
105		/**
106	+	* offerLast(null) throws NullPointerException
107	+	*/
108	+	public void testOfferLastNull() {
109	+	LinkedBlockingDeque q = new LinkedBlockingDeque();
110	+	try {
111	+	q.offerLast(null);
112	+	shouldThrow();
113	+	} catch (NullPointerException success) {}
114	+	}
115	+
116	+	/**
117		* OfferFirst succeeds
118		*/
119		public void testOfferFirst() {
#	Line 93 | Line 132 | public class LinkedBlockingDequeTest ext
132		}
133
134		/**
135	<	*  pollFirst succeeds unless empty
135	>	* pollFirst succeeds unless empty
136		*/
137		public void testPollFirst() {
138		LinkedBlockingDeque q = populatedDeque(SIZE);
139		for (int i = 0; i < SIZE; ++i) {
140	<	assertEquals(i, ((Integer)q.pollFirst()).intValue());
140	>	assertEquals(i, q.pollFirst());
141		}
142		assertNull(q.pollFirst());
143		}
144
145		/**
146	<	*  pollLast succeeds unless empty
146	>	* pollLast succeeds unless empty
147		*/
148		public void testPollLast() {
149		LinkedBlockingDeque q = populatedDeque(SIZE);
150		for (int i = SIZE-1; i >= 0; --i) {
151	<	assertEquals(i, ((Integer)q.pollLast()).intValue());
151	>	assertEquals(i, q.pollLast());
152		}
153		assertNull(q.pollLast());
154		}
155
156		/**
157	<	*  peekFirst returns next element, or null if empty
157	>	* peekFirst returns next element, or null if empty
158		*/
159		public void testPeekFirst() {
160		LinkedBlockingDeque q = populatedDeque(SIZE);
161		for (int i = 0; i < SIZE; ++i) {
162	<	assertEquals(i, ((Integer)q.peekFirst()).intValue());
163	<	q.pollFirst();
162	>	assertEquals(i, q.peekFirst());
163	>	assertEquals(i, q.pollFirst());
164		assertTrue(q.peekFirst() == null ||
165	<	i != ((Integer)q.peekFirst()).intValue());
165	>	!q.peekFirst().equals(i));
166		}
167		assertNull(q.peekFirst());
168		}
169
170		/**
171	<	*  peek returns next element, or null if empty
171	>	* peek returns next element, or null if empty
172		*/
173		public void testPeek() {
174		LinkedBlockingDeque q = populatedDeque(SIZE);
175		for (int i = 0; i < SIZE; ++i) {
176	<	assertEquals(i, ((Integer)q.peek()).intValue());
177	<	q.pollFirst();
176	>	assertEquals(i, q.peek());
177	>	assertEquals(i, q.pollFirst());
178		assertTrue(q.peek() == null ||
179	<	i != ((Integer)q.peek()).intValue());
179	>	!q.peek().equals(i));
180		}
181		assertNull(q.peek());
182		}
183
184		/**
185	<	*  peekLast returns next element, or null if empty
185	>	* peekLast returns next element, or null if empty
186		*/
187		public void testPeekLast() {
188		LinkedBlockingDeque q = populatedDeque(SIZE);
189		for (int i = SIZE-1; i >= 0; --i) {
190	<	assertEquals(i, ((Integer)q.peekLast()).intValue());
191	<	q.pollLast();
190	>	assertEquals(i, q.peekLast());
191	>	assertEquals(i, q.pollLast());
192		assertTrue(q.peekLast() == null ||
193	<	i != ((Integer)q.peekLast()).intValue());
193	>	!q.peekLast().equals(i));
194		}
195		assertNull(q.peekLast());
196		}
197
198		/**
199	<	* getFirst returns next getFirst, or throws NSEE if empty
199	>	* getFirst() returns first element, or throws NSEE if empty
200		*/
201		public void testFirstElement() {
202		LinkedBlockingDeque q = populatedDeque(SIZE);
203		for (int i = 0; i < SIZE; ++i) {
204	<	assertEquals(i, ((Integer)q.getFirst()).intValue());
205	<	q.pollFirst();
204	>	assertEquals(i, q.getFirst());
205	>	assertEquals(i, q.pollFirst());
206		}
207		try {
208		q.getFirst();
209		shouldThrow();
210		} catch (NoSuchElementException success) {}
211	+	assertNull(q.peekFirst());
212		}
213
214		/**
215	<	*  getLast returns next element, or throws NSEE if empty
215	>	* getLast() returns last element, or throws NSEE if empty
216		*/
217		public void testLastElement() {
218		LinkedBlockingDeque q = populatedDeque(SIZE);
219		for (int i = SIZE-1; i >= 0; --i) {
220	<	assertEquals(i, ((Integer)q.getLast()).intValue());
221	<	q.pollLast();
220	>	assertEquals(i, q.getLast());
221	>	assertEquals(i, q.pollLast());
222		}
223		try {
224		q.getLast();
#	Line 188 | Line 228 | public class LinkedBlockingDequeTest ext
228		}
229
230		/**
231	<	*  removeFirst removes next element, or throws NSEE if empty
231	>	* removeFirst() removes first element, or throws NSEE if empty
232		*/
233		public void testRemoveFirst() {
234		LinkedBlockingDeque q = populatedDeque(SIZE);
235		for (int i = 0; i < SIZE; ++i) {
236	<	assertEquals(i, ((Integer)q.removeFirst()).intValue());
236	>	assertEquals(i, q.removeFirst());
237		}
238		try {
239		q.removeFirst();
240		shouldThrow();
241		} catch (NoSuchElementException success) {}
242	+	assertNull(q.peekFirst());
243	+	}
244	+
245	+	/**
246	+	* removeLast() removes last element, or throws NSEE if empty
247	+	*/
248	+	public void testRemoveLast() {
249	+	LinkedBlockingDeque q = populatedDeque(SIZE);
250	+	for (int i = SIZE - 1; i >= 0; --i) {
251	+	assertEquals(i, q.removeLast());
252	+	}
253	+	try {
254	+	q.removeLast();
255	+	shouldThrow();
256	+	} catch (NoSuchElementException success) {}
257	+	assertNull(q.peekLast());
258		}
259
260		/**
261	<	*  remove removes next element, or throws NSEE if empty
261	>	* remove removes next element, or throws NSEE if empty
262		*/
263		public void testRemove() {
264		LinkedBlockingDeque q = populatedDeque(SIZE);
265		for (int i = 0; i < SIZE; ++i) {
266	<	assertEquals(i, ((Integer)q.remove()).intValue());
266	>	assertEquals(i, q.remove());
267		}
268		try {
269		q.remove();
#	Line 220 | Line 276 | public class LinkedBlockingDequeTest ext
276		*/
277		public void testRemoveFirstOccurrence() {
278		LinkedBlockingDeque q = populatedDeque(SIZE);
279	<	for (int i = 1; i < SIZE; i+=2) {
279	>	for (int i = 1; i < SIZE; i += 2) {
280		assertTrue(q.removeFirstOccurrence(new Integer(i)));
281		}
282	<	for (int i = 0; i < SIZE; i+=2) {
282	>	for (int i = 0; i < SIZE; i += 2) {
283		assertTrue(q.removeFirstOccurrence(new Integer(i)));
284		assertFalse(q.removeFirstOccurrence(new Integer(i+1)));
285		}
#	Line 235 | Line 291 | public class LinkedBlockingDequeTest ext
291		*/
292		public void testRemoveLastOccurrence() {
293		LinkedBlockingDeque q = populatedDeque(SIZE);
294	<	for (int i = 1; i < SIZE; i+=2) {
294	>	for (int i = 1; i < SIZE; i += 2) {
295		assertTrue(q.removeLastOccurrence(new Integer(i)));
296		}
297	<	for (int i = 0; i < SIZE; i+=2) {
297	>	for (int i = 0; i < SIZE; i += 2) {
298		assertTrue(q.removeLastOccurrence(new Integer(i)));
299		assertFalse(q.removeLastOccurrence(new Integer(i+1)));
300		}
#	Line 252 | Line 308 | public class LinkedBlockingDequeTest ext
308		LinkedBlockingDeque q = populatedDeque(3);
309		q.pollLast();
310		q.addFirst(four);
311	<	assertEquals(four,q.peekFirst());
311	>	assertSame(four, q.peekFirst());
312		}
313
314		/**
#	Line 262 | Line 318 | public class LinkedBlockingDequeTest ext
318		LinkedBlockingDeque q = populatedDeque(3);
319		q.pollLast();
320		q.addLast(four);
321	<	assertEquals(four,q.peekLast());
321	>	assertSame(four, q.peekLast());
322		}
323
268	–
324		/**
325		* A new deque has the indicated capacity, or Integer.MAX_VALUE if
326		* none given
#	Line 276 | Line 331 | public class LinkedBlockingDequeTest ext
331		}
332
333		/**
334	<	* Constructor throws IAE if capacity argument nonpositive
334	>	* Constructor throws IllegalArgumentException if capacity argument nonpositive
335		*/
336		public void testConstructor2() {
337		try {
338	<	LinkedBlockingDeque q = new LinkedBlockingDeque(0);
338	>	new LinkedBlockingDeque(0);
339		shouldThrow();
340		} catch (IllegalArgumentException success) {}
341		}
342
343		/**
344	<	* Initializing from null Collection throws NPE
344	>	* Initializing from null Collection throws NullPointerException
345		*/
346		public void testConstructor3() {
347		try {
348	<	LinkedBlockingDeque q = new LinkedBlockingDeque(null);
348	>	new LinkedBlockingDeque(null);
349		shouldThrow();
350		} catch (NullPointerException success) {}
351		}
352
353		/**
354	<	* Initializing from Collection of null elements throws NPE
354	>	* Initializing from Collection of null elements throws NullPointerException
355		*/
356		public void testConstructor4() {
357	+	Collection<Integer> elements = Arrays.asList(new Integer[SIZE]);
358		try {
359	<	Integer[] ints = new Integer[SIZE];
304	<	LinkedBlockingDeque q = new LinkedBlockingDeque(Arrays.asList(ints));
359	>	new LinkedBlockingDeque(elements);
360		shouldThrow();
361		} catch (NullPointerException success) {}
362		}
363
364		/**
365	<	* Initializing from Collection with some null elements throws NPE
365	>	* Initializing from Collection with some null elements throws
366	>	* NullPointerException
367		*/
368		public void testConstructor5() {
369	+	Integer[] ints = new Integer[SIZE];
370	+	for (int i = 0; i < SIZE-1; ++i)
371	+	ints[i] = i;
372	+	Collection<Integer> elements = Arrays.asList(ints);
373		try {
374	<	Integer[] ints = new Integer[SIZE];
315	<	for (int i = 0; i < SIZE-1; ++i)
316	<	ints[i] = new Integer(i);
317	<	LinkedBlockingDeque q = new LinkedBlockingDeque(Arrays.asList(ints));
374	>	new LinkedBlockingDeque(elements);
375		shouldThrow();
376		} catch (NullPointerException success) {}
377		}
#	Line 325 | Line 382 | public class LinkedBlockingDequeTest ext
382		public void testConstructor6() {
383		Integer[] ints = new Integer[SIZE];
384		for (int i = 0; i < SIZE; ++i)
385	<	ints[i] = new Integer(i);
385	>	ints[i] = i;
386		LinkedBlockingDeque q = new LinkedBlockingDeque(Arrays.asList(ints));
387		for (int i = 0; i < SIZE; ++i)
388		assertEquals(ints[i], q.poll());
#	Line 364 | Line 421 | public class LinkedBlockingDequeTest ext
421		}
422
423		/**
367	–	* offer(null) throws NPE
368	–	*/
369	–	public void testOfferNull() {
370	–	try {
371	–	LinkedBlockingDeque q = new LinkedBlockingDeque(1);
372	–	q.offer(null);
373	–	shouldThrow();
374	–	} catch (NullPointerException success) {}
375	–	}
376	–
377	–	/**
378	–	* add(null) throws NPE
379	–	*/
380	–	public void testAddNull() {
381	–	try {
382	–	LinkedBlockingDeque q = new LinkedBlockingDeque(1);
383	–	q.add(null);
384	–	shouldThrow();
385	–	} catch (NullPointerException success) {}
386	–	}
387	–
388	–	/**
424		* push(null) throws NPE
425		*/
426		public void testPushNull() {
#	Line 403 | Line 438 | public class LinkedBlockingDequeTest ext
438		try {
439		LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
440		for (int i = 0; i < SIZE; ++i) {
441	<	Integer I = new Integer(i);
442	<	q.push(I);
443	<	assertEquals(I, q.peek());
441	>	Integer x = new Integer(i);
442	>	q.push(x);
443	>	assertEquals(x, q.peek());
444		}
445		assertEquals(0, q.remainingCapacity());
446		q.push(new Integer(SIZE));
#	Line 420 | Line 455 | public class LinkedBlockingDequeTest ext
455		LinkedBlockingDeque q = populatedDeque(3);
456		q.pollLast();
457		q.push(four);
458	<	assertEquals(four,q.peekFirst());
458	>	assertSame(four, q.peekFirst());
459		}
460
426	–
461		/**
462	<	*  pop removes next element, or throws NSEE if empty
462	>	* pop removes next element, or throws NSEE if empty
463		*/
464		public void testPop() {
465		LinkedBlockingDeque q = populatedDeque(SIZE);
466		for (int i = 0; i < SIZE; ++i) {
467	<	assertEquals(i, ((Integer)q.pop()).intValue());
467	>	assertEquals(i, q.pop());
468		}
469		try {
470		q.pop();
#	Line 438 | Line 472 | public class LinkedBlockingDequeTest ext
472		} catch (NoSuchElementException success) {}
473		}
474
441	–
475		/**
476		* Offer succeeds if not full; fails if full
477		*/
#	Line 452 | Line 485 | public class LinkedBlockingDequeTest ext
485		* add succeeds if not full; throws ISE if full
486		*/
487		public void testAdd() {
488	+	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
489	+	for (int i = 0; i < SIZE; ++i)
490	+	assertTrue(q.add(new Integer(i)));
491	+	assertEquals(0, q.remainingCapacity());
492		try {
456	–	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
457	–	for (int i = 0; i < SIZE; ++i) {
458	–	assertTrue(q.add(new Integer(i)));
459	–	}
460	–	assertEquals(0, q.remainingCapacity());
493		q.add(new Integer(SIZE));
494		shouldThrow();
495		} catch (IllegalStateException success) {}
496		}
497
498		/**
467	–	* addAll(null) throws NPE
468	–	*/
469	–	public void testAddAll1() {
470	–	try {
471	–	LinkedBlockingDeque q = new LinkedBlockingDeque(1);
472	–	q.addAll(null);
473	–	shouldThrow();
474	–	} catch (NullPointerException success) {}
475	–	}
476	–
477	–	/**
499		* addAll(this) throws IAE
500		*/
501		public void testAddAllSelf() {
502	+	LinkedBlockingDeque q = populatedDeque(SIZE);
503		try {
482	–	LinkedBlockingDeque q = populatedDeque(SIZE);
504		q.addAll(q);
505		shouldThrow();
506		} catch (IllegalArgumentException success) {}
507		}
508
509		/**
489	–	* addAll of a collection with null elements throws NPE
490	–	*/
491	–	public void testAddAll2() {
492	–	try {
493	–	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
494	–	Integer[] ints = new Integer[SIZE];
495	–	q.addAll(Arrays.asList(ints));
496	–	shouldThrow();
497	–	} catch (NullPointerException success) {}
498	–	}
499	–	/**
510		* addAll of a collection with any null elements throws NPE after
511		* possibly adding some elements
512		*/
513		public void testAddAll3() {
514	+	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
515	+	Integer[] ints = new Integer[SIZE];
516	+	for (int i = 0; i < SIZE-1; ++i)
517	+	ints[i] = new Integer(i);
518	+	Collection<Integer> elements = Arrays.asList(ints);
519		try {
520	<	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
506	<	Integer[] ints = new Integer[SIZE];
507	<	for (int i = 0; i < SIZE-1; ++i)
508	<	ints[i] = new Integer(i);
509	<	q.addAll(Arrays.asList(ints));
520	>	q.addAll(elements);
521		shouldThrow();
522		} catch (NullPointerException success) {}
523		}
524	+
525		/**
526	<	* addAll throws ISE if not enough room
526	>	* addAll throws IllegalStateException if not enough room
527		*/
528		public void testAddAll4() {
529	+	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE - 1);
530	+	Integer[] ints = new Integer[SIZE];
531	+	for (int i = 0; i < SIZE; ++i)
532	+	ints[i] = new Integer(i);
533	+	Collection<Integer> elements = Arrays.asList(ints);
534		try {
535	<	LinkedBlockingDeque q = new LinkedBlockingDeque(1);
519	<	Integer[] ints = new Integer[SIZE];
520	<	for (int i = 0; i < SIZE; ++i)
521	<	ints[i] = new Integer(i);
522	<	q.addAll(Arrays.asList(ints));
535	>	q.addAll(elements);
536		shouldThrow();
537		} catch (IllegalStateException success) {}
538		}
539	+
540		/**
541		* Deque contains all elements, in traversal order, of successful addAll
542		*/
#	Line 538 | Line 552 | public class LinkedBlockingDequeTest ext
552		assertEquals(ints[i], q.poll());
553		}
554
541	–
542	–	/**
543	–	* put(null) throws NPE
544	–	*/
545	–	public void testPutNull() throws InterruptedException {
546	–	try {
547	–	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
548	–	q.put(null);
549	–	shouldThrow();
550	–	} catch (NullPointerException success) {}
551	–	}
552	–
555		/**
556		* all elements successfully put are contained
557		*/
558		public void testPut() throws InterruptedException {
559		LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
560		for (int i = 0; i < SIZE; ++i) {
561	<	Integer I = new Integer(i);
562	<	q.put(I);
563	<	assertTrue(q.contains(I));
561	>	Integer x = new Integer(i);
562	>	q.put(x);
563	>	assertTrue(q.contains(x));
564		}
565		assertEquals(0, q.remainingCapacity());
566		}
#	Line 567 | Line 569 | public class LinkedBlockingDequeTest ext
569		* put blocks interruptibly if full
570		*/
571		public void testBlockingPut() throws InterruptedException {
572	<	Thread t = new Thread(new CheckedRunnable() {
573	<	public void realRun() {
574	<	int added = 0;
572	>	final LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
573	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
574	>	Thread t = newStartedThread(new CheckedRunnable() {
575	>	public void realRun() throws InterruptedException {
576	>	for (int i = 0; i < SIZE; ++i)
577	>	q.put(i);
578	>	assertEquals(SIZE, q.size());
579	>	assertEquals(0, q.remainingCapacity());
580	>
581	>	Thread.currentThread().interrupt();
582		try {
583	<	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
584	<	for (int i = 0; i < SIZE; ++i) {
585	<	q.put(new Integer(i));
586	<	++added;
587	<	}
588	<	q.put(new Integer(SIZE));
589	<	threadShouldThrow();
590	<	} catch (InterruptedException success) {
591	<	threadAssertEquals(added, SIZE);
592	<	}
583	>	q.put(99);
584	>	shouldThrow();
585	>	} catch (InterruptedException success) {}
586	>	assertFalse(Thread.interrupted());
587	>
588	>	pleaseInterrupt.countDown();
589	>	try {
590	>	q.put(99);
591	>	shouldThrow();
592	>	} catch (InterruptedException success) {}
593	>	assertFalse(Thread.interrupted());
594		}});
595
596	<	t.start();
597	<	Thread.sleep(SHORT_DELAY_MS);
596	>	await(pleaseInterrupt);
597	>	assertThreadStaysAlive(t);
598		t.interrupt();
599	<	t.join();
599	>	awaitTermination(t);
600	>	assertEquals(SIZE, q.size());
601	>	assertEquals(0, q.remainingCapacity());
602		}
603
604		/**
605	<	* put blocks waiting for take when full
605	>	* put blocks interruptibly waiting for take when full
606		*/
607		public void testPutWithTake() throws InterruptedException {
608	<	final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
609	<	Thread t = new Thread(new CheckedRunnable() {
610	<	public void realRun() {
611	<	int added = 0;
608	>	final int capacity = 2;
609	>	final LinkedBlockingDeque q = new LinkedBlockingDeque(capacity);
610	>	final CountDownLatch pleaseTake = new CountDownLatch(1);
611	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
612	>	Thread t = newStartedThread(new CheckedRunnable() {
613	>	public void realRun() throws InterruptedException {
614	>	for (int i = 0; i < capacity; i++)
615	>	q.put(i);
616	>	pleaseTake.countDown();
617	>	q.put(86);
618	>
619	>	pleaseInterrupt.countDown();
620		try {
621	<	q.put(new Object());
622	<	++added;
623	<	q.put(new Object());
624	<	++added;
605	<	q.put(new Object());
606	<	++added;
607	<	q.put(new Object());
608	<	++added;
609	<	threadShouldThrow();
610	<	} catch (InterruptedException success) {
611	<	threadAssertTrue(added >= 2);
612	<	}
621	>	q.put(99);
622	>	shouldThrow();
623	>	} catch (InterruptedException success) {}
624	>	assertFalse(Thread.interrupted());
625		}});
626
627	<	t.start();
628	<	Thread.sleep(SHORT_DELAY_MS);
629	<	q.take();
627	>	await(pleaseTake);
628	>	assertEquals(0, q.remainingCapacity());
629	>	assertEquals(0, q.take());
630	>
631	>	await(pleaseInterrupt);
632	>	assertThreadStaysAlive(t);
633		t.interrupt();
634	<	t.join();
634	>	awaitTermination(t);
635	>	assertEquals(0, q.remainingCapacity());
636		}
637
638		/**
#	Line 624 | Line 640 | public class LinkedBlockingDequeTest ext
640		*/
641		public void testTimedOffer() throws InterruptedException {
642		final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
643	<	Thread t = new ThreadShouldThrow(InterruptedException.class) {
643	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
644	>	Thread t = newStartedThread(new CheckedRunnable() {
645		public void realRun() throws InterruptedException {
646		q.put(new Object());
647		q.put(new Object());
648	<	threadAssertFalse(q.offer(new Object(), SHORT_DELAY_MS, MILLISECONDS));
649	<	q.offer(new Object(), LONG_DELAY_MS, MILLISECONDS);
650	<	}};
648	>	long startTime = System.nanoTime();
649	>	assertFalse(q.offer(new Object(), timeoutMillis(), MILLISECONDS));
650	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
651	>	pleaseInterrupt.countDown();
652	>	try {
653	>	q.offer(new Object(), 2 * LONG_DELAY_MS, MILLISECONDS);
654	>	shouldThrow();
655	>	} catch (InterruptedException success) {}
656	>	}});
657
658	<	t.start();
659	<	Thread.sleep(SMALL_DELAY_MS);
658	>	await(pleaseInterrupt);
659	>	assertThreadStaysAlive(t);
660		t.interrupt();
661	<	t.join();
661	>	awaitTermination(t);
662		}
663
664		/**
#	Line 644 | Line 667 | public class LinkedBlockingDequeTest ext
667		public void testTake() throws InterruptedException {
668		LinkedBlockingDeque q = populatedDeque(SIZE);
669		for (int i = 0; i < SIZE; ++i) {
670	<	assertEquals(i, ((Integer)q.take()).intValue());
670	>	assertEquals(i, q.take());
671		}
672		}
673
674		/**
675	<	* take blocks interruptibly when empty
653	<	*/
654	<	public void testTakeFromEmpty() throws InterruptedException {
655	<	final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
656	<	Thread t = new ThreadShouldThrow(InterruptedException.class) {
657	<	public void realRun() throws InterruptedException {
658	<	q.take();
659	<	}};
660	<
661	<	t.start();
662	<	Thread.sleep(SHORT_DELAY_MS);
663	<	t.interrupt();
664	<	t.join();
665	<	}
666	<
667	<	/**
668	<	* Take removes existing elements until empty, then blocks interruptibly
675	>	* take removes existing elements until empty, then blocks interruptibly
676		*/
677		public void testBlockingTake() throws InterruptedException {
678	<	Thread t = new ThreadShouldThrow(InterruptedException.class) {
678	>	final LinkedBlockingDeque q = populatedDeque(SIZE);
679	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
680	>	Thread t = newStartedThread(new CheckedRunnable() {
681		public void realRun() throws InterruptedException {
673	–	LinkedBlockingDeque q = populatedDeque(SIZE);
682		for (int i = 0; i < SIZE; ++i) {
683	<	assertEquals(i, ((Integer)q.take()).intValue());
683	>	assertEquals(i, q.take());
684		}
677	–	q.take();
678	–	}};
685
686	<	t.start();
687	<	Thread.sleep(SHORT_DELAY_MS);
686	>	Thread.currentThread().interrupt();
687	>	try {
688	>	q.take();
689	>	shouldThrow();
690	>	} catch (InterruptedException success) {}
691	>	assertFalse(Thread.interrupted());
692	>
693	>	pleaseInterrupt.countDown();
694	>	try {
695	>	q.take();
696	>	shouldThrow();
697	>	} catch (InterruptedException success) {}
698	>	assertFalse(Thread.interrupted());
699	>	}});
700	>
701	>	await(pleaseInterrupt);
702	>	assertThreadStaysAlive(t);
703		t.interrupt();
704	<	t.join();
704	>	awaitTermination(t);
705		}
706
686	–
707		/**
708		* poll succeeds unless empty
709		*/
710		public void testPoll() {
711		LinkedBlockingDeque q = populatedDeque(SIZE);
712		for (int i = 0; i < SIZE; ++i) {
713	<	assertEquals(i, ((Integer)q.poll()).intValue());
713	>	assertEquals(i, q.poll());
714		}
715		assertNull(q.poll());
716		}
#	Line 701 | Line 721 | public class LinkedBlockingDequeTest ext
721		public void testTimedPoll0() throws InterruptedException {
722		LinkedBlockingDeque q = populatedDeque(SIZE);
723		for (int i = 0; i < SIZE; ++i) {
724	<	assertEquals(i, ((Integer)q.poll(0, MILLISECONDS)).intValue());
724	>	assertEquals(i, q.poll(0, MILLISECONDS));
725		}
726		assertNull(q.poll(0, MILLISECONDS));
727		}
#	Line 712 | Line 732 | public class LinkedBlockingDequeTest ext
732		public void testTimedPoll() throws InterruptedException {
733		LinkedBlockingDeque q = populatedDeque(SIZE);
734		for (int i = 0; i < SIZE; ++i) {
735	<	assertEquals(i, ((Integer)q.poll(SHORT_DELAY_MS, MILLISECONDS)).intValue());
736	<	}
737	<	assertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS));
735	>	long startTime = System.nanoTime();
736	>	assertEquals(i, q.poll(LONG_DELAY_MS, MILLISECONDS));
737	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
738	>	}
739	>	long startTime = System.nanoTime();
740	>	assertNull(q.poll(timeoutMillis(), MILLISECONDS));
741	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
742	>	checkEmpty(q);
743		}
744
745		/**
#	Line 722 | Line 747 | public class LinkedBlockingDequeTest ext
747		* returning timeout status
748		*/
749		public void testInterruptedTimedPoll() throws InterruptedException {
750	<	Thread t = new ThreadShouldThrow(InterruptedException.class) {
750	>	final BlockingQueue<Integer> q = populatedDeque(SIZE);
751	>	final CountDownLatch aboutToWait = new CountDownLatch(1);
752	>	Thread t = newStartedThread(new CheckedRunnable() {
753		public void realRun() throws InterruptedException {
727	–	LinkedBlockingDeque q = populatedDeque(SIZE);
754		for (int i = 0; i < SIZE; ++i) {
755	<	threadAssertEquals(i, ((Integer)q.poll(SHORT_DELAY_MS, MILLISECONDS)).intValue());
755	>	long t0 = System.nanoTime();
756	>	assertEquals(i, (int) q.poll(LONG_DELAY_MS, MILLISECONDS));
757	>	assertTrue(millisElapsedSince(t0) < SMALL_DELAY_MS);
758		}
759	<	q.poll(SMALL_DELAY_MS, MILLISECONDS);
760	<	}};
761	<
762	<	t.start();
763	<	Thread.sleep(SHORT_DELAY_MS);
764	<	t.interrupt();
765	<	t.join();
766	<	}
767	<
740	<	/**
741	<	*  timed poll before a delayed offer fails; after offer succeeds;
742	<	*  on interruption throws
743	<	*/
744	<	public void testTimedPollWithOffer() throws InterruptedException {
745	<	final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
746	<	Thread t = new ThreadShouldThrow(InterruptedException.class) {
747	<	public void realRun() throws InterruptedException {
748	<	threadAssertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS));
749	<	q.poll(LONG_DELAY_MS, MILLISECONDS);
750	<	q.poll(LONG_DELAY_MS, MILLISECONDS);
751	<	}};
759	>	long t0 = System.nanoTime();
760	>	aboutToWait.countDown();
761	>	try {
762	>	q.poll(MEDIUM_DELAY_MS, MILLISECONDS);
763	>	shouldThrow();
764	>	} catch (InterruptedException success) {
765	>	assertTrue(millisElapsedSince(t0) < MEDIUM_DELAY_MS);
766	>	}
767	>	}});
768
769	<	t.start();
770	<	Thread.sleep(SMALL_DELAY_MS);
755	<	assertTrue(q.offer(zero, SHORT_DELAY_MS, MILLISECONDS));
769	>	aboutToWait.await();
770	>	waitForThreadToEnterWaitState(t, SMALL_DELAY_MS);
771		t.interrupt();
772	<	t.join();
772	>	awaitTermination(t, MEDIUM_DELAY_MS);
773	>	checkEmpty(q);
774		}
775
760	–
776		/**
777		* putFirst(null) throws NPE
778		*/
779	<	public void testPutFirstNull() throws InterruptedException {
779	>	public void testPutFirstNull() throws InterruptedException {
780	>	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
781		try {
766	–	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
782		q.putFirst(null);
783		shouldThrow();
784		} catch (NullPointerException success) {}
785	<	}
785	>	}
786
787		/**
788		* all elements successfully putFirst are contained
789		*/
790	<	public void testPutFirst() throws InterruptedException {
791	<	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
792	<	for (int i = 0; i < SIZE; ++i) {
793	<	Integer I = new Integer(i);
794	<	q.putFirst(I);
795	<	assertTrue(q.contains(I));
796	<	}
797	<	assertEquals(0, q.remainingCapacity());
790	>	public void testPutFirst() throws InterruptedException {
791	>	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
792	>	for (int i = 0; i < SIZE; ++i) {
793	>	Integer x = new Integer(i);
794	>	q.putFirst(x);
795	>	assertTrue(q.contains(x));
796	>	}
797	>	assertEquals(0, q.remainingCapacity());
798		}
799
800		/**
801		* putFirst blocks interruptibly if full
802		*/
803		public void testBlockingPutFirst() throws InterruptedException {
804	<	Thread t = new Thread(new CheckedRunnable() {
805	<	public void realRun() {
806	<	int added = 0;
804	>	final LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
805	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
806	>	Thread t = newStartedThread(new CheckedRunnable() {
807	>	public void realRun() throws InterruptedException {
808	>	for (int i = 0; i < SIZE; ++i)
809	>	q.putFirst(i);
810	>	assertEquals(SIZE, q.size());
811	>	assertEquals(0, q.remainingCapacity());
812	>
813	>	Thread.currentThread().interrupt();
814		try {
815	<	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
816	<	for (int i = 0; i < SIZE; ++i) {
817	<	q.putFirst(new Integer(i));
818	<	++added;
819	<	}
820	<	q.putFirst(new Integer(SIZE));
821	<	threadShouldThrow();
822	<	} catch (InterruptedException success) {
823	<	threadAssertEquals(added, SIZE);
824	<	}
815	>	q.putFirst(99);
816	>	shouldThrow();
817	>	} catch (InterruptedException success) {}
818	>	assertFalse(Thread.interrupted());
819	>
820	>	pleaseInterrupt.countDown();
821	>	try {
822	>	q.putFirst(99);
823	>	shouldThrow();
824	>	} catch (InterruptedException success) {}
825	>	assertFalse(Thread.interrupted());
826		}});
827
828	<	t.start();
829	<	Thread.sleep(SHORT_DELAY_MS);
828	>	await(pleaseInterrupt);
829	>	assertThreadStaysAlive(t);
830		t.interrupt();
831	<	t.join();
831	>	awaitTermination(t);
832	>	assertEquals(SIZE, q.size());
833	>	assertEquals(0, q.remainingCapacity());
834		}
835
836		/**
837	<	* putFirst blocks waiting for take when full
837	>	* putFirst blocks interruptibly waiting for take when full
838		*/
839		public void testPutFirstWithTake() throws InterruptedException {
840	<	final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
841	<	Thread t = new Thread(new CheckedRunnable() {
842	<	public void realRun() {
843	<	int added = 0;
840	>	final int capacity = 2;
841	>	final LinkedBlockingDeque q = new LinkedBlockingDeque(capacity);
842	>	final CountDownLatch pleaseTake = new CountDownLatch(1);
843	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
844	>	Thread t = newStartedThread(new CheckedRunnable() {
845	>	public void realRun() throws InterruptedException {
846	>	for (int i = 0; i < capacity; i++)
847	>	q.putFirst(i);
848	>	pleaseTake.countDown();
849	>	q.putFirst(86);
850	>
851	>	pleaseInterrupt.countDown();
852		try {
853	<	q.putFirst(new Object());
854	<	++added;
855	<	q.putFirst(new Object());
856	<	++added;
824	<	q.putFirst(new Object());
825	<	++added;
826	<	q.putFirst(new Object());
827	<	++added;
828	<	threadShouldThrow();
829	<	} catch (InterruptedException success) {
830	<	threadAssertTrue(added >= 2);
831	<	}
853	>	q.putFirst(99);
854	>	shouldThrow();
855	>	} catch (InterruptedException success) {}
856	>	assertFalse(Thread.interrupted());
857		}});
858
859	<	t.start();
860	<	Thread.sleep(SHORT_DELAY_MS);
861	<	q.take();
859	>	await(pleaseTake);
860	>	assertEquals(0, q.remainingCapacity());
861	>	assertEquals(capacity - 1, q.take());
862	>
863	>	await(pleaseInterrupt);
864	>	assertThreadStaysAlive(t);
865		t.interrupt();
866	<	t.join();
866	>	awaitTermination(t);
867	>	assertEquals(0, q.remainingCapacity());
868		}
869
870		/**
#	Line 843 | Line 872 | public class LinkedBlockingDequeTest ext
872		*/
873		public void testTimedOfferFirst() throws InterruptedException {
874		final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
875	<	Thread t = new ThreadShouldThrow(InterruptedException.class) {
875	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
876	>	Thread t = newStartedThread(new CheckedRunnable() {
877		public void realRun() throws InterruptedException {
878		q.putFirst(new Object());
879		q.putFirst(new Object());
880	<	threadAssertFalse(q.offerFirst(new Object(), SHORT_DELAY_MS, MILLISECONDS));
881	<	q.offerFirst(new Object(), LONG_DELAY_MS, MILLISECONDS);
882	<	}};
880	>	long startTime = System.nanoTime();
881	>	assertFalse(q.offerFirst(new Object(), timeoutMillis(), MILLISECONDS));
882	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
883	>	pleaseInterrupt.countDown();
884	>	try {
885	>	q.offerFirst(new Object(), 2 * LONG_DELAY_MS, MILLISECONDS);
886	>	shouldThrow();
887	>	} catch (InterruptedException success) {}
888	>	}});
889
890	<	t.start();
891	<	Thread.sleep(SMALL_DELAY_MS);
890	>	await(pleaseInterrupt);
891	>	assertThreadStaysAlive(t);
892		t.interrupt();
893	<	t.join();
893	>	awaitTermination(t);
894		}
895
896		/**
#	Line 863 | Line 899 | public class LinkedBlockingDequeTest ext
899		public void testTakeFirst() throws InterruptedException {
900		LinkedBlockingDeque q = populatedDeque(SIZE);
901		for (int i = 0; i < SIZE; ++i) {
902	<	assertEquals(i, ((Integer)q.takeFirst()).intValue());
902	>	assertEquals(i, q.takeFirst());
903		}
904		}
905
906		/**
907	<	* takeFirst blocks interruptibly when empty
907	>	* takeFirst() blocks interruptibly when empty
908		*/
909	<	public void testTakeFirstFromEmpty() throws InterruptedException {
910	<	final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
911	<	Thread t = new ThreadShouldThrow(InterruptedException.class) {
912	<	public void realRun() throws InterruptedException {
913	<	q.takeFirst();
914	<	}};
909	>	public void testTakeFirstFromEmptyBlocksInterruptibly() {
910	>	final BlockingDeque q = new LinkedBlockingDeque();
911	>	final CountDownLatch threadStarted = new CountDownLatch(1);
912	>	Thread t = newStartedThread(new CheckedRunnable() {
913	>	public void realRun() {
914	>	threadStarted.countDown();
915	>	try {
916	>	q.takeFirst();
917	>	shouldThrow();
918	>	} catch (InterruptedException success) {}
919	>	assertFalse(Thread.interrupted());
920	>	}});
921
922	<	t.start();
923	<	Thread.sleep(SHORT_DELAY_MS);
922	>	await(threadStarted);
923	>	assertThreadStaysAlive(t);
924		t.interrupt();
925	<	t.join();
925	>	awaitTermination(t);
926		}
927
928		/**
929	<	* TakeFirst removes existing elements until empty, then blocks interruptibly
929	>	* takeFirst() throws InterruptedException immediately if interrupted
930	>	* before waiting
931	>	*/
932	>	public void testTakeFirstFromEmptyAfterInterrupt() {
933	>	final BlockingDeque q = new LinkedBlockingDeque();
934	>	Thread t = newStartedThread(new CheckedRunnable() {
935	>	public void realRun() {
936	>	Thread.currentThread().interrupt();
937	>	try {
938	>	q.takeFirst();
939	>	shouldThrow();
940	>	} catch (InterruptedException success) {}
941	>	assertFalse(Thread.interrupted());
942	>	}});
943	>
944	>	awaitTermination(t);
945	>	}
946	>
947	>	/**
948	>	* takeLast() blocks interruptibly when empty
949	>	*/
950	>	public void testTakeLastFromEmptyBlocksInterruptibly() {
951	>	final BlockingDeque q = new LinkedBlockingDeque();
952	>	final CountDownLatch threadStarted = new CountDownLatch(1);
953	>	Thread t = newStartedThread(new CheckedRunnable() {
954	>	public void realRun() {
955	>	threadStarted.countDown();
956	>	try {
957	>	q.takeLast();
958	>	shouldThrow();
959	>	} catch (InterruptedException success) {}
960	>	assertFalse(Thread.interrupted());
961	>	}});
962	>
963	>	await(threadStarted);
964	>	assertThreadStaysAlive(t);
965	>	t.interrupt();
966	>	awaitTermination(t);
967	>	}
968	>
969	>	/**
970	>	* takeLast() throws InterruptedException immediately if interrupted
971	>	* before waiting
972	>	*/
973	>	public void testTakeLastFromEmptyAfterInterrupt() {
974	>	final BlockingDeque q = new LinkedBlockingDeque();
975	>	Thread t = newStartedThread(new CheckedRunnable() {
976	>	public void realRun() {
977	>	Thread.currentThread().interrupt();
978	>	try {
979	>	q.takeLast();
980	>	shouldThrow();
981	>	} catch (InterruptedException success) {}
982	>	assertFalse(Thread.interrupted());
983	>	}});
984	>
985	>	awaitTermination(t);
986	>	}
987	>
988	>	/**
989	>	* takeFirst removes existing elements until empty, then blocks interruptibly
990		*/
991		public void testBlockingTakeFirst() throws InterruptedException {
992	<	Thread t = new ThreadShouldThrow(InterruptedException.class) {
992	>	final LinkedBlockingDeque q = populatedDeque(SIZE);
993	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
994	>	Thread t = newStartedThread(new CheckedRunnable() {
995		public void realRun() throws InterruptedException {
892	–	LinkedBlockingDeque q = populatedDeque(SIZE);
996		for (int i = 0; i < SIZE; ++i) {
997	<	assertEquals(i, ((Integer)q.takeFirst()).intValue());
997	>	assertEquals(i, q.takeFirst());
998		}
896	–	q.takeFirst();
897	–	}};
999
1000	<	t.start();
1001	<	Thread.sleep(SHORT_DELAY_MS);
1000	>	Thread.currentThread().interrupt();
1001	>	try {
1002	>	q.takeFirst();
1003	>	shouldThrow();
1004	>	} catch (InterruptedException success) {}
1005	>	assertFalse(Thread.interrupted());
1006	>
1007	>	pleaseInterrupt.countDown();
1008	>	try {
1009	>	q.takeFirst();
1010	>	shouldThrow();
1011	>	} catch (InterruptedException success) {}
1012	>	assertFalse(Thread.interrupted());
1013	>	}});
1014	>
1015	>	await(pleaseInterrupt);
1016	>	assertThreadStaysAlive(t);
1017		t.interrupt();
1018	<	t.join();
1018	>	awaitTermination(t);
1019		}
1020
905	–
1021		/**
1022		* timed pollFirst with zero timeout succeeds when non-empty, else times out
1023		*/
1024		public void testTimedPollFirst0() throws InterruptedException {
1025		LinkedBlockingDeque q = populatedDeque(SIZE);
1026		for (int i = 0; i < SIZE; ++i) {
1027	<	assertEquals(i, ((Integer)q.pollFirst(0, MILLISECONDS)).intValue());
1027	>	assertEquals(i, q.pollFirst(0, MILLISECONDS));
1028		}
1029		assertNull(q.pollFirst(0, MILLISECONDS));
1030		}
#	Line 920 | Line 1035 | public class LinkedBlockingDequeTest ext
1035		public void testTimedPollFirst() throws InterruptedException {
1036		LinkedBlockingDeque q = populatedDeque(SIZE);
1037		for (int i = 0; i < SIZE; ++i) {
1038	<	assertEquals(i, ((Integer)q.pollFirst(SHORT_DELAY_MS, MILLISECONDS)).intValue());
1039	<	}
1040	<	assertNull(q.pollFirst(SHORT_DELAY_MS, MILLISECONDS));
1038	>	long startTime = System.nanoTime();
1039	>	assertEquals(i, q.pollFirst(LONG_DELAY_MS, MILLISECONDS));
1040	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1041	>	}
1042	>	long startTime = System.nanoTime();
1043	>	assertNull(q.pollFirst(timeoutMillis(), MILLISECONDS));
1044	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
1045	>	checkEmpty(q);
1046		}
1047
1048		/**
#	Line 930 | Line 1050 | public class LinkedBlockingDequeTest ext
1050		* returning timeout status
1051		*/
1052		public void testInterruptedTimedPollFirst() throws InterruptedException {
1053	<	Thread t = new ThreadShouldThrow(InterruptedException.class) {
1053	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
1054	>	Thread t = newStartedThread(new CheckedRunnable() {
1055		public void realRun() throws InterruptedException {
1056		LinkedBlockingDeque q = populatedDeque(SIZE);
1057		for (int i = 0; i < SIZE; ++i) {
1058	<	threadAssertEquals(i, ((Integer)q.pollFirst(SHORT_DELAY_MS, MILLISECONDS)).intValue());
1058	>	assertEquals(i, q.pollFirst(LONG_DELAY_MS, MILLISECONDS));
1059		}
939	–	q.pollFirst(SMALL_DELAY_MS, MILLISECONDS);
940	–	}};
1060
1061	<	t.start();
1062	<	Thread.sleep(SHORT_DELAY_MS);
1061	>	Thread.currentThread().interrupt();
1062	>	try {
1063	>	q.pollFirst(SMALL_DELAY_MS, MILLISECONDS);
1064	>	shouldThrow();
1065	>	} catch (InterruptedException success) {}
1066	>	assertFalse(Thread.interrupted());
1067	>
1068	>	pleaseInterrupt.countDown();
1069	>	try {
1070	>	q.pollFirst(LONG_DELAY_MS, MILLISECONDS);
1071	>	shouldThrow();
1072	>	} catch (InterruptedException success) {}
1073	>	assertFalse(Thread.interrupted());
1074	>	}});
1075	>
1076	>	await(pleaseInterrupt);
1077	>	assertThreadStaysAlive(t);
1078		t.interrupt();
1079	<	t.join();
1079	>	awaitTermination(t);
1080		}
1081
1082		/**
1083	<	*  timed pollFirst before a delayed offerFirst fails; after offerFirst succeeds;
1084	<	*  on interruption throws
1083	>	* timed pollFirst before a delayed offerFirst fails; after offerFirst succeeds;
1084	>	* on interruption throws
1085		*/
1086		public void testTimedPollFirstWithOfferFirst() throws InterruptedException {
1087		final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
1088	<	Thread t = new ThreadShouldThrow(InterruptedException.class) {
1088	>	final CheckedBarrier barrier = new CheckedBarrier(2);
1089	>	Thread t = newStartedThread(new CheckedRunnable() {
1090		public void realRun() throws InterruptedException {
1091	<	threadAssertNull(q.pollFirst(SHORT_DELAY_MS, MILLISECONDS));
1092	<	q.pollFirst(LONG_DELAY_MS, MILLISECONDS);
1093	<	q.pollFirst(LONG_DELAY_MS, MILLISECONDS);
959	<	}};
1091	>	long startTime = System.nanoTime();
1092	>	assertNull(q.pollFirst(timeoutMillis(), MILLISECONDS));
1093	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
1094
1095	<	t.start();
1096	<	Thread.sleep(SMALL_DELAY_MS);
1097	<	assertTrue(q.offerFirst(zero, SHORT_DELAY_MS, MILLISECONDS));
1095	>	barrier.await();
1096	>
1097	>	assertSame(zero, q.pollFirst(LONG_DELAY_MS, MILLISECONDS));
1098	>
1099	>	Thread.currentThread().interrupt();
1100	>	try {
1101	>	q.pollFirst(LONG_DELAY_MS, MILLISECONDS);
1102	>	shouldThrow();
1103	>	} catch (InterruptedException success) {}
1104	>
1105	>	barrier.await();
1106	>	try {
1107	>	q.pollFirst(LONG_DELAY_MS, MILLISECONDS);
1108	>	shouldThrow();
1109	>	} catch (InterruptedException success) {}
1110	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1111	>	}});
1112	>
1113	>	barrier.await();
1114	>	long startTime = System.nanoTime();
1115	>	assertTrue(q.offerFirst(zero, LONG_DELAY_MS, MILLISECONDS));
1116	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1117	>	barrier.await();
1118	>	assertThreadStaysAlive(t);
1119		t.interrupt();
1120	<	t.join();
1120	>	awaitTermination(t);
1121		}
1122
1123		/**
1124		* putLast(null) throws NPE
1125		*/
1126	<	public void testPutLastNull() throws InterruptedException {
1126	>	public void testPutLastNull() throws InterruptedException {
1127	>	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
1128		try {
973	–	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
1129		q.putLast(null);
1130		shouldThrow();
1131		} catch (NullPointerException success) {}
1132	<	}
1132	>	}
1133
1134		/**
1135		* all elements successfully putLast are contained
1136		*/
1137	<	public void testPutLast() throws InterruptedException {
1138	<	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
1139	<	for (int i = 0; i < SIZE; ++i) {
1140	<	Integer I = new Integer(i);
1141	<	q.putLast(I);
1142	<	assertTrue(q.contains(I));
1143	<	}
1144	<	assertEquals(0, q.remainingCapacity());
1137	>	public void testPutLast() throws InterruptedException {
1138	>	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
1139	>	for (int i = 0; i < SIZE; ++i) {
1140	>	Integer x = new Integer(i);
1141	>	q.putLast(x);
1142	>	assertTrue(q.contains(x));
1143	>	}
1144	>	assertEquals(0, q.remainingCapacity());
1145		}
1146
1147		/**
1148		* putLast blocks interruptibly if full
1149		*/
1150		public void testBlockingPutLast() throws InterruptedException {
1151	<	Thread t = new Thread(new CheckedRunnable() {
1152	<	public void realRun() {
1153	<	int added = 0;
1151	>	final LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
1152	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
1153	>	Thread t = newStartedThread(new CheckedRunnable() {
1154	>	public void realRun() throws InterruptedException {
1155	>	for (int i = 0; i < SIZE; ++i)
1156	>	q.putLast(i);
1157	>	assertEquals(SIZE, q.size());
1158	>	assertEquals(0, q.remainingCapacity());
1159	>
1160	>	Thread.currentThread().interrupt();
1161		try {
1162	<	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
1163	<	for (int i = 0; i < SIZE; ++i) {
1164	<	q.putLast(new Integer(i));
1165	<	++added;
1166	<	}
1167	<	q.putLast(new Integer(SIZE));
1168	<	threadShouldThrow();
1169	<	} catch (InterruptedException success) {
1170	<	threadAssertEquals(added, SIZE);
1171	<	}
1162	>	q.putLast(99);
1163	>	shouldThrow();
1164	>	} catch (InterruptedException success) {}
1165	>	assertFalse(Thread.interrupted());
1166	>
1167	>	pleaseInterrupt.countDown();
1168	>	try {
1169	>	q.putLast(99);
1170	>	shouldThrow();
1171	>	} catch (InterruptedException success) {}
1172	>	assertFalse(Thread.interrupted());
1173		}});
1174
1175	<	t.start();
1176	<	Thread.sleep(SHORT_DELAY_MS);
1175	>	await(pleaseInterrupt);
1176	>	assertThreadStaysAlive(t);
1177		t.interrupt();
1178	<	t.join();
1178	>	awaitTermination(t);
1179	>	assertEquals(SIZE, q.size());
1180	>	assertEquals(0, q.remainingCapacity());
1181		}
1182
1183		/**
1184	<	* putLast blocks waiting for take when full
1184	>	* putLast blocks interruptibly waiting for take when full
1185		*/
1186		public void testPutLastWithTake() throws InterruptedException {
1187	<	final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
1188	<	Thread t = new Thread(new CheckedRunnable() {
1189	<	public void realRun() {
1190	<	int added = 0;
1187	>	final int capacity = 2;
1188	>	final LinkedBlockingDeque q = new LinkedBlockingDeque(capacity);
1189	>	final CountDownLatch pleaseTake = new CountDownLatch(1);
1190	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
1191	>	Thread t = newStartedThread(new CheckedRunnable() {
1192	>	public void realRun() throws InterruptedException {
1193	>	for (int i = 0; i < capacity; i++)
1194	>	q.putLast(i);
1195	>	pleaseTake.countDown();
1196	>	q.putLast(86);
1197	>
1198	>	pleaseInterrupt.countDown();
1199		try {
1200	<	q.putLast(new Object());
1201	<	++added;
1202	<	q.putLast(new Object());
1203	<	++added;
1031	<	q.putLast(new Object());
1032	<	++added;
1033	<	q.putLast(new Object());
1034	<	++added;
1035	<	threadShouldThrow();
1036	<	} catch (InterruptedException success) {
1037	<	threadAssertTrue(added >= 2);
1038	<	}
1200	>	q.putLast(99);
1201	>	shouldThrow();
1202	>	} catch (InterruptedException success) {}
1203	>	assertFalse(Thread.interrupted());
1204		}});
1205
1206	<	t.start();
1207	<	Thread.sleep(SHORT_DELAY_MS);
1208	<	q.take();
1206	>	await(pleaseTake);
1207	>	assertEquals(0, q.remainingCapacity());
1208	>	assertEquals(0, q.take());
1209	>
1210	>	await(pleaseInterrupt);
1211	>	assertThreadStaysAlive(t);
1212		t.interrupt();
1213	<	t.join();
1213	>	awaitTermination(t);
1214	>	assertEquals(0, q.remainingCapacity());
1215		}
1216
1217		/**
#	Line 1050 | Line 1219 | public class LinkedBlockingDequeTest ext
1219		*/
1220		public void testTimedOfferLast() throws InterruptedException {
1221		final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
1222	<	Thread t = new ThreadShouldThrow(InterruptedException.class) {
1222	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
1223	>	Thread t = newStartedThread(new CheckedRunnable() {
1224		public void realRun() throws InterruptedException {
1225		q.putLast(new Object());
1226		q.putLast(new Object());
1227	<	threadAssertFalse(q.offerLast(new Object(), SHORT_DELAY_MS, MILLISECONDS));
1228	<	q.offerLast(new Object(), LONG_DELAY_MS, MILLISECONDS);
1229	<	}};
1227	>	long startTime = System.nanoTime();
1228	>	assertFalse(q.offerLast(new Object(), timeoutMillis(), MILLISECONDS));
1229	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
1230	>	pleaseInterrupt.countDown();
1231	>	try {
1232	>	q.offerLast(new Object(), 2 * LONG_DELAY_MS, MILLISECONDS);
1233	>	shouldThrow();
1234	>	} catch (InterruptedException success) {}
1235	>	}});
1236
1237	<	t.start();
1238	<	Thread.sleep(SMALL_DELAY_MS);
1237	>	await(pleaseInterrupt);
1238	>	assertThreadStaysAlive(t);
1239		t.interrupt();
1240	<	t.join();
1240	>	awaitTermination(t);
1241		}
1242
1243		/**
#	Line 1070 | Line 1246 | public class LinkedBlockingDequeTest ext
1246		public void testTakeLast() throws InterruptedException {
1247		LinkedBlockingDeque q = populatedDeque(SIZE);
1248		for (int i = 0; i < SIZE; ++i) {
1249	<	assertEquals(SIZE-i-1, ((Integer)q.takeLast()).intValue());
1249	>	assertEquals(SIZE-i-1, q.takeLast());
1250		}
1251		}
1252
1253		/**
1254	<	* takeLast blocks interruptibly when empty
1079	<	*/
1080	<	public void testTakeLastFromEmpty() throws InterruptedException {
1081	<	final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
1082	<	Thread t = new ThreadShouldThrow(InterruptedException.class) {
1083	<	public void realRun() throws InterruptedException {
1084	<	q.takeLast();
1085	<	}};
1086	<
1087	<	t.start();
1088	<	Thread.sleep(SHORT_DELAY_MS);
1089	<	t.interrupt();
1090	<	t.join();
1091	<	}
1092	<
1093	<	/**
1094	<	* TakeLast removes existing elements until empty, then blocks interruptibly
1254	>	* takeLast removes existing elements until empty, then blocks interruptibly
1255		*/
1256		public void testBlockingTakeLast() throws InterruptedException {
1257	<	Thread t = new ThreadShouldThrow(InterruptedException.class) {
1257	>	final LinkedBlockingDeque q = populatedDeque(SIZE);
1258	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
1259	>	Thread t = newStartedThread(new CheckedRunnable() {
1260		public void realRun() throws InterruptedException {
1099	–	LinkedBlockingDeque q = populatedDeque(SIZE);
1261		for (int i = 0; i < SIZE; ++i) {
1262	<	assertEquals(SIZE-i-1, ((Integer)q.takeLast()).intValue());
1262	>	assertEquals(SIZE-i-1, q.takeLast());
1263		}
1103	–	q.takeLast();
1104	–	}};
1264
1265	<	t.start();
1266	<	Thread.sleep(SHORT_DELAY_MS);
1265	>	Thread.currentThread().interrupt();
1266	>	try {
1267	>	q.takeLast();
1268	>	shouldThrow();
1269	>	} catch (InterruptedException success) {}
1270	>	assertFalse(Thread.interrupted());
1271	>
1272	>	pleaseInterrupt.countDown();
1273	>	try {
1274	>	q.takeLast();
1275	>	shouldThrow();
1276	>	} catch (InterruptedException success) {}
1277	>	assertFalse(Thread.interrupted());
1278	>	}});
1279	>
1280	>	await(pleaseInterrupt);
1281	>	assertThreadStaysAlive(t);
1282		t.interrupt();
1283	<	t.join();
1283	>	awaitTermination(t);
1284		}
1285
1112	–
1286		/**
1287		* timed pollLast with zero timeout succeeds when non-empty, else times out
1288		*/
1289		public void testTimedPollLast0() throws InterruptedException {
1290		LinkedBlockingDeque q = populatedDeque(SIZE);
1291		for (int i = 0; i < SIZE; ++i) {
1292	<	assertEquals(SIZE-i-1, ((Integer)q.pollLast(0, MILLISECONDS)).intValue());
1292	>	assertEquals(SIZE-i-1, q.pollLast(0, MILLISECONDS));
1293		}
1294		assertNull(q.pollLast(0, MILLISECONDS));
1295		}
#	Line 1127 | Line 1300 | public class LinkedBlockingDequeTest ext
1300		public void testTimedPollLast() throws InterruptedException {
1301		LinkedBlockingDeque q = populatedDeque(SIZE);
1302		for (int i = 0; i < SIZE; ++i) {
1303	<	assertEquals(SIZE-i-1, ((Integer)q.pollLast(SHORT_DELAY_MS, MILLISECONDS)).intValue());
1304	<	}
1305	<	assertNull(q.pollLast(SHORT_DELAY_MS, MILLISECONDS));
1303	>	long startTime = System.nanoTime();
1304	>	assertEquals(SIZE-i-1, q.pollLast(LONG_DELAY_MS, MILLISECONDS));
1305	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1306	>	}
1307	>	long startTime = System.nanoTime();
1308	>	assertNull(q.pollLast(timeoutMillis(), MILLISECONDS));
1309	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
1310	>	checkEmpty(q);
1311		}
1312
1313		/**
#	Line 1137 | Line 1315 | public class LinkedBlockingDequeTest ext
1315		* returning timeout status
1316		*/
1317		public void testInterruptedTimedPollLast() throws InterruptedException {
1318	<	Thread t = new ThreadShouldThrow(InterruptedException.class) {
1318	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
1319	>	Thread t = newStartedThread(new CheckedRunnable() {
1320		public void realRun() throws InterruptedException {
1321		LinkedBlockingDeque q = populatedDeque(SIZE);
1322		for (int i = 0; i < SIZE; ++i) {
1323	<	threadAssertEquals(SIZE-i-1, ((Integer)q.pollLast(SHORT_DELAY_MS, MILLISECONDS)).intValue());
1323	>	assertEquals(SIZE-i-1, q.pollLast(LONG_DELAY_MS, MILLISECONDS));
1324		}
1146	–	q.pollLast(SMALL_DELAY_MS, MILLISECONDS);
1147	–	}};
1325
1326	<	t.start();
1327	<	Thread.sleep(SHORT_DELAY_MS);
1326	>	Thread.currentThread().interrupt();
1327	>	try {
1328	>	q.pollLast(LONG_DELAY_MS, MILLISECONDS);
1329	>	shouldThrow();
1330	>	} catch (InterruptedException success) {}
1331	>	assertFalse(Thread.interrupted());
1332	>
1333	>	pleaseInterrupt.countDown();
1334	>	try {
1335	>	q.pollLast(LONG_DELAY_MS, MILLISECONDS);
1336	>	shouldThrow();
1337	>	} catch (InterruptedException success) {}
1338	>	assertFalse(Thread.interrupted());
1339	>	}});
1340	>
1341	>	await(pleaseInterrupt);
1342	>	assertThreadStaysAlive(t);
1343		t.interrupt();
1344	<	t.join();
1344	>	awaitTermination(t);
1345		}
1346
1347		/**
1348	<	*  timed poll before a delayed offerLast fails; after offerLast succeeds;
1349	<	*  on interruption throws
1348	>	* timed poll before a delayed offerLast fails; after offerLast succeeds;
1349	>	* on interruption throws
1350		*/
1351		public void testTimedPollWithOfferLast() throws InterruptedException {
1352		final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
1353	<	Thread t = new Thread(new CheckedRunnable() {
1353	>	final CheckedBarrier barrier = new CheckedBarrier(2);
1354	>	Thread t = newStartedThread(new CheckedRunnable() {
1355		public void realRun() throws InterruptedException {
1356	<	assertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS));
1356	>	long startTime = System.nanoTime();
1357	>	assertNull(q.poll(timeoutMillis(), MILLISECONDS));
1358	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
1359	>
1360	>	barrier.await();
1361	>
1362		assertSame(zero, q.poll(LONG_DELAY_MS, MILLISECONDS));
1363	+
1364	+	Thread.currentThread().interrupt();
1365	+	try {
1366	+	q.poll(LONG_DELAY_MS, MILLISECONDS);
1367	+	shouldThrow();
1368	+	} catch (InterruptedException success) {}
1369	+	assertFalse(Thread.interrupted());
1370	+
1371	+	barrier.await();
1372		try {
1373		q.poll(LONG_DELAY_MS, MILLISECONDS);
1374		shouldThrow();
1375		} catch (InterruptedException success) {}
1376	+	assertFalse(Thread.interrupted());
1377		}});
1378
1379	<	t.start();
1380	<	Thread.sleep(SMALL_DELAY_MS);
1381	<	assertTrue(q.offerLast(zero, SHORT_DELAY_MS, MILLISECONDS));
1379	>	barrier.await();
1380	>	long startTime = System.nanoTime();
1381	>	assertTrue(q.offerLast(zero, LONG_DELAY_MS, MILLISECONDS));
1382	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1383	>
1384	>	barrier.await();
1385	>	assertThreadStaysAlive(t);
1386		t.interrupt();
1387	<	t.join();
1387	>	awaitTermination(t);
1388		}
1389
1178	–
1390		/**
1391		* element returns next element, or throws NSEE if empty
1392		*/
1393		public void testElement() {
1394		LinkedBlockingDeque q = populatedDeque(SIZE);
1395		for (int i = 0; i < SIZE; ++i) {
1396	<	assertEquals(i, ((Integer)q.element()).intValue());
1396	>	assertEquals(i, q.element());
1397		q.poll();
1398		}
1399		try {
#	Line 1192 | Line 1403 | public class LinkedBlockingDequeTest ext
1403		}
1404
1405		/**
1195	–	* remove(x) removes x and returns true if present
1196	–	*/
1197	–	public void testRemoveElement() {
1198	–	LinkedBlockingDeque q = populatedDeque(SIZE);
1199	–	for (int i = 1; i < SIZE; i+=2) {
1200	–	assertTrue(q.remove(new Integer(i)));
1201	–	}
1202	–	for (int i = 0; i < SIZE; i+=2) {
1203	–	assertTrue(q.remove(new Integer(i)));
1204	–	assertFalse(q.remove(new Integer(i+1)));
1205	–	}
1206	–	assertTrue(q.isEmpty());
1207	–	}
1208	–
1209	–	/**
1406		* contains(x) reports true when elements added but not yet removed
1407		*/
1408		public void testContains() {
#	Line 1277 | Line 1473 | public class LinkedBlockingDequeTest ext
1473		assertTrue(q.removeAll(p));
1474		assertEquals(SIZE-i, q.size());
1475		for (int j = 0; j < i; ++j) {
1476	<	Integer I = (Integer)(p.remove());
1477	<	assertFalse(q.contains(I));
1476	>	Integer x = (Integer)(p.remove());
1477	>	assertFalse(q.contains(x));
1478		}
1479		}
1480		}
1481
1482		/**
1483	<	* toArray contains all elements
1483	>	* toArray contains all elements in FIFO order
1484		*/
1485	<	public void testToArray() throws InterruptedException{
1485	>	public void testToArray() throws InterruptedException {
1486		LinkedBlockingDeque q = populatedDeque(SIZE);
1487		Object[] o = q.toArray();
1488		for (int i = 0; i < o.length; i++)
1489	<	assertEquals(o[i], q.take());
1489	>	assertSame(o[i], q.poll());
1490		}
1491
1492		/**
1493	<	* toArray(a) contains all elements
1493	>	* toArray(a) contains all elements in FIFO order
1494		*/
1495	<	public void testToArray2() throws InterruptedException {
1496	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1495	>	public void testToArray2() {
1496	>	LinkedBlockingDeque<Integer> q = populatedDeque(SIZE);
1497		Integer[] ints = new Integer[SIZE];
1498	<	ints = (Integer[])q.toArray(ints);
1498	>	Integer[] array = q.toArray(ints);
1499	>	assertSame(ints, array);
1500		for (int i = 0; i < ints.length; i++)
1501	<	assertEquals(ints[i], q.take());
1305	<	}
1306	<
1307	<	/**
1308	<	* toArray(null) throws NPE
1309	<	*/
1310	<	public void testToArray_BadArg() {
1311	<	try {
1312	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1313	<	Object o[] = q.toArray(null);
1314	<	shouldThrow();
1315	<	} catch (NullPointerException success) {}
1501	>	assertSame(ints[i], q.remove());
1502		}
1503
1504		/**
1505	<	* toArray with incompatible array type throws CCE
1505	>	* toArray(incompatible array type) throws ArrayStoreException
1506		*/
1507		public void testToArray1_BadArg() {
1508	+	LinkedBlockingDeque q = populatedDeque(SIZE);
1509		try {
1510	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1324	<	Object o[] = q.toArray(new String[10] );
1510	>	q.toArray(new String[10]);
1511		shouldThrow();
1512		} catch (ArrayStoreException success) {}
1513		}
1514
1329	–
1515		/**
1516		* iterator iterates through all elements
1517		*/
1518		public void testIterator() throws InterruptedException {
1519		LinkedBlockingDeque q = populatedDeque(SIZE);
1520		Iterator it = q.iterator();
1521	<	while (it.hasNext()) {
1521	>	int i;
1522	>	for (i = 0; it.hasNext(); i++)
1523	>	assertTrue(q.contains(it.next()));
1524	>	assertEquals(i, SIZE);
1525	>	assertIteratorExhausted(it);
1526	>
1527	>	it = q.iterator();
1528	>	for (i = 0; it.hasNext(); i++)
1529		assertEquals(it.next(), q.take());
1530	<	}
1530	>	assertEquals(i, SIZE);
1531	>	assertIteratorExhausted(it);
1532	>	}
1533	>
1534	>	/**
1535	>	* iterator of empty collection has no elements
1536	>	*/
1537	>	public void testEmptyIterator() {
1538	>	Deque c = new LinkedBlockingDeque();
1539	>	assertIteratorExhausted(c.iterator());
1540	>	assertIteratorExhausted(c.descendingIterator());
1541		}
1542
1543		/**
1544		* iterator.remove removes current element
1545		*/
1546	<	public void testIteratorRemove () {
1546	>	public void testIteratorRemove() {
1547		final LinkedBlockingDeque q = new LinkedBlockingDeque(3);
1548		q.add(two);
1549		q.add(one);
#	Line 1352 | Line 1554 | public class LinkedBlockingDequeTest ext
1554		it.remove();
1555
1556		it = q.iterator();
1557	<	assertEquals(it.next(), one);
1558	<	assertEquals(it.next(), three);
1557	>	assertSame(it.next(), one);
1558	>	assertSame(it.next(), three);
1559		assertFalse(it.hasNext());
1560		}
1561
1360	–
1562		/**
1563		* iterator ordering is FIFO
1564		*/
#	Line 1369 | Line 1570 | public class LinkedBlockingDequeTest ext
1570		assertEquals(0, q.remainingCapacity());
1571		int k = 0;
1572		for (Iterator it = q.iterator(); it.hasNext();) {
1573	<	int i = ((Integer)(it.next())).intValue();
1373	<	assertEquals(++k, i);
1573	>	assertEquals(++k, it.next());
1574		}
1575		assertEquals(3, k);
1576		}
#	Line 1378 | Line 1578 | public class LinkedBlockingDequeTest ext
1578		/**
1579		* Modifications do not cause iterators to fail
1580		*/
1581	<	public void testWeaklyConsistentIteration () {
1581	>	public void testWeaklyConsistentIteration() {
1582		final LinkedBlockingDeque q = new LinkedBlockingDeque(3);
1583		q.add(one);
1584		q.add(two);
#	Line 1390 | Line 1590 | public class LinkedBlockingDequeTest ext
1590		assertEquals(0, q.size());
1591		}
1592
1393	–
1593		/**
1594	<	*  Descending iterator iterates through all elements
1594	>	* Descending iterator iterates through all elements
1595		*/
1596		public void testDescendingIterator() {
1597		LinkedBlockingDeque q = populatedDeque(SIZE);
#	Line 1411 | Line 1610 | public class LinkedBlockingDequeTest ext
1610		}
1611
1612		/**
1613	<	*  Descending iterator ordering is reverse FIFO
1613	>	* Descending iterator ordering is reverse FIFO
1614		*/
1615		public void testDescendingIteratorOrdering() {
1616		final LinkedBlockingDeque q = new LinkedBlockingDeque();
#	Line 1421 | Line 1620 | public class LinkedBlockingDequeTest ext
1620		q.add(new Integer(1));
1621		int k = 0;
1622		for (Iterator it = q.descendingIterator(); it.hasNext();) {
1623	<	int i = ((Integer)(it.next())).intValue();
1425	<	assertEquals(++k, i);
1623	>	assertEquals(++k, it.next());
1624		}
1625
1626		assertEquals(3, k);
#	Line 1435 | Line 1633 | public class LinkedBlockingDequeTest ext
1633		/**
1634		* descendingIterator.remove removes current element
1635		*/
1636	<	public void testDescendingIteratorRemove () {
1636	>	public void testDescendingIteratorRemove() {
1637		final LinkedBlockingDeque q = new LinkedBlockingDeque();
1638		for (int iters = 0; iters < 100; ++iters) {
1639		q.add(new Integer(3));
#	Line 1454 | Line 1652 | public class LinkedBlockingDequeTest ext
1652		}
1653		}
1654
1457	–
1655		/**
1656		* toString contains toStrings of elements
1657		*/
#	Line 1462 | Line 1659 | public class LinkedBlockingDequeTest ext
1659		LinkedBlockingDeque q = populatedDeque(SIZE);
1660		String s = q.toString();
1661		for (int i = 0; i < SIZE; ++i) {
1662	<	assertTrue(s.indexOf(String.valueOf(i)) >= 0);
1662	>	assertTrue(s.contains(String.valueOf(i)));
1663		}
1664		}
1665
1469	–
1666		/**
1667		* offer transfers elements across Executor tasks
1668		*/
#	Line 1475 | Line 1671 | public class LinkedBlockingDequeTest ext
1671		q.add(one);
1672		q.add(two);
1673		ExecutorService executor = Executors.newFixedThreadPool(2);
1674	+	final CheckedBarrier threadsStarted = new CheckedBarrier(2);
1675		executor.execute(new CheckedRunnable() {
1676		public void realRun() throws InterruptedException {
1677	<	threadAssertFalse(q.offer(three));
1678	<	threadAssertTrue(q.offer(three, MEDIUM_DELAY_MS, MILLISECONDS));
1679	<	threadAssertEquals(0, q.remainingCapacity());
1677	>	assertFalse(q.offer(three));
1678	>	threadsStarted.await();
1679	>	assertTrue(q.offer(three, LONG_DELAY_MS, MILLISECONDS));
1680	>	assertEquals(0, q.remainingCapacity());
1681		}});
1682
1683		executor.execute(new CheckedRunnable() {
1684		public void realRun() throws InterruptedException {
1685	<	Thread.sleep(SMALL_DELAY_MS);
1686	<	threadAssertEquals(one, q.take());
1685	>	threadsStarted.await();
1686	>	assertSame(one, q.take());
1687		}});
1688
1689		joinPool(executor);
1690		}
1691
1692		/**
1693	<	* poll retrieves elements across Executor threads
1693	>	* timed poll retrieves elements across Executor threads
1694		*/
1695		public void testPollInExecutor() {
1696		final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
1697	+	final CheckedBarrier threadsStarted = new CheckedBarrier(2);
1698		ExecutorService executor = Executors.newFixedThreadPool(2);
1699		executor.execute(new CheckedRunnable() {
1700		public void realRun() throws InterruptedException {
1701	<	threadAssertNull(q.poll());
1702	<	threadAssertTrue(null != q.poll(MEDIUM_DELAY_MS, MILLISECONDS));
1703	<	threadAssertTrue(q.isEmpty());
1701	>	assertNull(q.poll());
1702	>	threadsStarted.await();
1703	>	assertSame(one, q.poll(LONG_DELAY_MS, MILLISECONDS));
1704	>	checkEmpty(q);
1705		}});
1706
1707		executor.execute(new CheckedRunnable() {
1708		public void realRun() throws InterruptedException {
1709	<	Thread.sleep(SMALL_DELAY_MS);
1709	>	threadsStarted.await();
1710		q.put(one);
1711		}});
1712
#	Line 1517 | Line 1717 | public class LinkedBlockingDequeTest ext
1717		* A deserialized serialized deque has same elements in same order
1718		*/
1719		public void testSerialization() throws Exception {
1720	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1720	>	Queue x = populatedDeque(SIZE);
1721	>	Queue y = serialClone(x);
1722
1723	<	ByteArrayOutputStream bout = new ByteArrayOutputStream(10000);
1724	<	ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout));
1725	<	out.writeObject(q);
1726	<	out.close();
1727	<
1728	<	ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray());
1729	<	ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin));
1730	<	LinkedBlockingDeque r = (LinkedBlockingDeque)in.readObject();
1731	<	assertEquals(q.size(), r.size());
1531	<	while (!q.isEmpty())
1532	<	assertEquals(q.remove(), r.remove());
1533	<	}
1534	<
1535	<	/**
1536	<	* drainTo(null) throws NPE
1537	<	*/
1538	<	public void testDrainToNull() {
1539	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1540	<	try {
1541	<	q.drainTo(null);
1542	<	shouldThrow();
1543	<	} catch (NullPointerException success) {}
1544	<	}
1545	<
1546	<	/**
1547	<	* drainTo(this) throws IAE
1548	<	*/
1549	<	public void testDrainToSelf() {
1550	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1551	<	try {
1552	<	q.drainTo(q);
1553	<	shouldThrow();
1554	<	} catch (IllegalArgumentException success) {}
1723	>	assertNotSame(y, x);
1724	>	assertEquals(x.size(), y.size());
1725	>	assertEquals(x.toString(), y.toString());
1726	>	assertTrue(Arrays.equals(x.toArray(), y.toArray()));
1727	>	while (!x.isEmpty()) {
1728	>	assertFalse(y.isEmpty());
1729	>	assertEquals(x.remove(), y.remove());
1730	>	}
1731	>	assertTrue(y.isEmpty());
1732		}
1733
1734		/**
#	Line 1561 | Line 1738 | public class LinkedBlockingDequeTest ext
1738		LinkedBlockingDeque q = populatedDeque(SIZE);
1739		ArrayList l = new ArrayList();
1740		q.drainTo(l);
1741	<	assertEquals(q.size(), 0);
1742	<	assertEquals(l.size(), SIZE);
1741	>	assertEquals(0, q.size());
1742	>	assertEquals(SIZE, l.size());
1743		for (int i = 0; i < SIZE; ++i)
1744		assertEquals(l.get(i), new Integer(i));
1745		q.add(zero);
#	Line 1572 | Line 1749 | public class LinkedBlockingDequeTest ext
1749		assertTrue(q.contains(one));
1750		l.clear();
1751		q.drainTo(l);
1752	<	assertEquals(q.size(), 0);
1753	<	assertEquals(l.size(), 2);
1752	>	assertEquals(0, q.size());
1753	>	assertEquals(2, l.size());
1754		for (int i = 0; i < 2; ++i)
1755		assertEquals(l.get(i), new Integer(i));
1756		}
#	Line 1599 | Line 1776 | public class LinkedBlockingDequeTest ext
1776		}
1777
1778		/**
1779	<	* drainTo(null, n) throws NPE
1603	<	*/
1604	<	public void testDrainToNullN() {
1605	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1606	<	try {
1607	<	q.drainTo(null, 0);
1608	<	shouldThrow();
1609	<	} catch (NullPointerException success) {}
1610	<	}
1611	<
1612	<	/**
1613	<	* drainTo(this, n) throws IAE
1614	<	*/
1615	<	public void testDrainToSelfN() {
1616	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1617	<	try {
1618	<	q.drainTo(q, 0);
1619	<	shouldThrow();
1620	<	} catch (IllegalArgumentException success) {}
1621	<	}
1622	<
1623	<	/**
1624	<	* drainTo(c, n) empties first max {n, size} elements of deque into c
1779	>	* drainTo(c, n) empties first min(n, size) elements of queue into c
1780		*/
1781		public void testDrainToN() {
1782		LinkedBlockingDeque q = new LinkedBlockingDeque();
#	Line 1630 | Line 1785 | public class LinkedBlockingDequeTest ext
1785		assertTrue(q.offer(new Integer(j)));
1786		ArrayList l = new ArrayList();
1787		q.drainTo(l, i);
1788	<	int k = (i < SIZE)? i : SIZE;
1789	<	assertEquals(l.size(), k);
1790	<	assertEquals(q.size(), SIZE-k);
1788	>	int k = (i < SIZE) ? i : SIZE;
1789	>	assertEquals(k, l.size());
1790	>	assertEquals(SIZE-k, q.size());
1791		for (int j = 0; j < k; ++j)
1792		assertEquals(l.get(j), new Integer(j));
1793	<	while (q.poll() != null) ;
1793	>	do {} while (q.poll() != null);
1794	>	}
1795	>	}
1796	>
1797	>	/**
1798	>	* remove(null), contains(null) always return false
1799	>	*/
1800	>	public void testNeverContainsNull() {
1801	>	Deque<?>[] qs = {
1802	>	new LinkedBlockingDeque<Object>(),
1803	>	populatedDeque(2),
1804	>	};
1805	>
1806	>	for (Deque<?> q : qs) {
1807	>	assertFalse(q.contains(null));
1808	>	assertFalse(q.remove(null));
1809	>	assertFalse(q.removeFirstOccurrence(null));
1810	>	assertFalse(q.removeLastOccurrence(null));
1811		}
1812		}
1813

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