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Comparing jsr166/src/test/tck/LinkedBlockingDequeTest.java (file contents):
Revision 1.6 by jsr166, Mon Nov 16 05:30:07 2009 UTC vs.
Revision 1.56 by jsr166, Sat Feb 28 19:59:23 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.*;
10	<	import java.io.*;
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;
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)));
57	>	for (int i = 0; i < n; i++)
58	>	assertTrue(q.offer(new Integer(i)));
59		assertFalse(q.isEmpty());
60		assertEquals(0, q.remainingCapacity());
61	<	assertEquals(n, q.size());
61	>	assertEquals(n, q.size());
62		return q;
63		}
64
#	Line 63 | 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	<	try {
99	<	LinkedBlockingDeque q = new LinkedBlockingDeque();
98	>	LinkedBlockingDeque q = new LinkedBlockingDeque();
99	>	try {
100		q.offerFirst(null);
101		shouldThrow();
102	<	} catch (NullPointerException success) {
103	<	}
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		/**
#	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());
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());
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());
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());
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());
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	<	}
211	<	catch (NoSuchElementException success) {}
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();
225		shouldThrow();
226	<	}
227	<	catch (NoSuchElementException success) {}
189	<	assertNull(q.peekLast());
226	>	} catch (NoSuchElementException success) {}
227	>	assertNull(q.peekLast());
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	<	}
241	>	} catch (NoSuchElementException success) {}
242	>	assertNull(q.peekFirst());
243		}
244
245		/**
246	<	*  remove removes next element, or throws NSEE if empty
246	>	* removeLast() removes last element, or throws NSEE if empty
247	>	*/
248	>	public void testRemoveLast() {
249	>	LinkedBlockingDeque q = populatedDeque(SIZE);
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
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();
270		shouldThrow();
271	<	} catch (NoSuchElementException success) {
219	<	}
271	>	} catch (NoSuchElementException success) {}
272		}
273
274		/**
#	Line 224 | 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 239 | 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 255 | Line 307 | public class LinkedBlockingDequeTest ext
307		public void testAddFirst() {
308		LinkedBlockingDeque q = populatedDeque(3);
309		q.pollLast();
310	<	q.addFirst(four);
311	<	assertEquals(four,q.peekFirst());
310	>	q.addFirst(four);
311	>	assertSame(four, q.peekFirst());
312		}
313
314		/**
#	Line 265 | Line 317 | public class LinkedBlockingDequeTest ext
317		public void testAddLast() {
318		LinkedBlockingDeque q = populatedDeque(3);
319		q.pollLast();
320	<	q.addLast(four);
321	<	assertEquals(four,q.peekLast());
320	>	q.addLast(four);
321	>	assertSame(four, q.peekLast());
322		}
323
272	–
324		/**
325		* A new deque has the indicated capacity, or Integer.MAX_VALUE if
326		* none given
#	Line 280 | 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	<	}
290	<	catch (IllegalArgumentException success) {}
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	<	}
301	<	catch (NullPointerException success) {}
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];
310	<	LinkedBlockingDeque q = new LinkedBlockingDeque(Arrays.asList(ints));
359	>	new LinkedBlockingDeque(elements);
360		shouldThrow();
361	<	}
313	<	catch (NullPointerException success) {}
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];
322	<	for (int i = 0; i < SIZE-1; ++i)
323	<	ints[i] = new Integer(i);
324	<	LinkedBlockingDeque q = new LinkedBlockingDeque(Arrays.asList(ints));
374	>	new LinkedBlockingDeque(elements);
375		shouldThrow();
376	<	}
327	<	catch (NullPointerException success) {}
376	>	} catch (NullPointerException success) {}
377		}
378
379		/**
380		* Deque contains all elements of collection used to initialize
381		*/
382		public void testConstructor6() {
383	<	try {
384	<	Integer[] ints = new Integer[SIZE];
385	<	for (int i = 0; i < SIZE; ++i)
386	<	ints[i] = new Integer(i);
387	<	LinkedBlockingDeque q = new LinkedBlockingDeque(Arrays.asList(ints));
388	<	for (int i = 0; i < SIZE; ++i)
340	<	assertEquals(ints[i], q.poll());
341	<	}
342	<	finally {}
383	>	Integer[] ints = new Integer[SIZE];
384	>	for (int i = 0; i < SIZE; ++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());
389		}
390
391		/**
#	Line 361 | Line 407 | public class LinkedBlockingDequeTest ext
407		* remainingCapacity decreases on add, increases on remove
408		*/
409		public void testRemainingCapacity() {
410	<	LinkedBlockingDeque q = populatedDeque(SIZE);
410	>	BlockingQueue q = populatedDeque(SIZE);
411		for (int i = 0; i < SIZE; ++i) {
412		assertEquals(i, q.remainingCapacity());
413	<	assertEquals(SIZE-i, q.size());
414	<	q.remove();
413	>	assertEquals(SIZE, q.size() + q.remainingCapacity());
414	>	assertEquals(i, q.remove());
415		}
416		for (int i = 0; i < SIZE; ++i) {
417		assertEquals(SIZE-i, q.remainingCapacity());
418	<	assertEquals(i, q.size());
419	<	q.add(new Integer(i));
418	>	assertEquals(SIZE, q.size() + q.remainingCapacity());
419	>	assertTrue(q.add(i));
420		}
421		}
422
423		/**
378	–	* offer(null) throws NPE
379	–	*/
380	–	public void testOfferNull() {
381	–	try {
382	–	LinkedBlockingDeque q = new LinkedBlockingDeque(1);
383	–	q.offer(null);
384	–	shouldThrow();
385	–	} catch (NullPointerException success) { }
386	–	}
387	–
388	–	/**
389	–	* add(null) throws NPE
390	–	*/
391	–	public void testAddNull() {
392	–	try {
393	–	LinkedBlockingDeque q = new LinkedBlockingDeque(1);
394	–	q.add(null);
395	–	shouldThrow();
396	–	} catch (NullPointerException success) { }
397	–	}
398	–
399	–	/**
424		* push(null) throws NPE
425		*/
426		public void testPushNull() {
427	<	try {
427	>	try {
428		LinkedBlockingDeque q = new LinkedBlockingDeque(1);
429		q.push(null);
430		shouldThrow();
431	<	} catch (NullPointerException success) { }
431	>	} catch (NullPointerException success) {}
432		}
433
434		/**
435		* push succeeds if not full; throws ISE if full
436		*/
437		public void testPush() {
438	<	try {
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));
447	<	} catch (IllegalStateException success) {
448	<	}
447	>	shouldThrow();
448	>	} catch (IllegalStateException success) {}
449		}
450
451		/**
#	Line 430 | Line 454 | public class LinkedBlockingDequeTest ext
454		public void testPushWithPeek() {
455		LinkedBlockingDeque q = populatedDeque(3);
456		q.pollLast();
457	<	q.push(four);
458	<	assertEquals(four,q.peekFirst());
457	>	q.push(four);
458	>	assertSame(four, q.peekFirst());
459		}
460
437	–
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();
471		shouldThrow();
472	<	} catch (NoSuchElementException success) {
450	<	}
472	>	} catch (NoSuchElementException success) {}
473		}
474
453	–
475		/**
476		* Offer succeeds if not full; fails if full
477		*/
#	Line 464 | Line 485 | public class LinkedBlockingDequeTest ext
485		* add succeeds if not full; throws ISE if full
486		*/
487		public void testAdd() {
488	<	try {
489	<	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
490	<	for (int i = 0; i < SIZE; ++i) {
491	<	assertTrue(q.add(new Integer(i)));
471	<	}
472	<	assertEquals(0, q.remainingCapacity());
473	<	q.add(new Integer(SIZE));
474	<	} catch (IllegalStateException success) {
475	<	}
476	<	}
477	<
478	<	/**
479	<	* addAll(null) throws NPE
480	<	*/
481	<	public void testAddAll1() {
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 {
493	<	LinkedBlockingDeque q = new LinkedBlockingDeque(1);
484	<	q.addAll(null);
493	>	q.add(new Integer(SIZE));
494		shouldThrow();
495	<	}
487	<	catch (NullPointerException success) {}
495	>	} catch (IllegalStateException success) {}
496		}
497
498		/**
499		* addAll(this) throws IAE
500		*/
501		public void testAddAllSelf() {
502	+	LinkedBlockingDeque q = populatedDeque(SIZE);
503		try {
495	–	LinkedBlockingDeque q = populatedDeque(SIZE);
504		q.addAll(q);
505		shouldThrow();
506	<	}
499	<	catch (IllegalArgumentException success) {}
506	>	} catch (IllegalArgumentException success) {}
507		}
508
509		/**
503	–	* addAll of a collection with null elements throws NPE
504	–	*/
505	–	public void testAddAll2() {
506	–	try {
507	–	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
508	–	Integer[] ints = new Integer[SIZE];
509	–	q.addAll(Arrays.asList(ints));
510	–	shouldThrow();
511	–	}
512	–	catch (NullPointerException success) {}
513	–	}
514	–	/**
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);
521	<	Integer[] ints = new Integer[SIZE];
522	<	for (int i = 0; i < SIZE-1; ++i)
523	<	ints[i] = new Integer(i);
524	<	q.addAll(Arrays.asList(ints));
520	>	q.addAll(elements);
521		shouldThrow();
522	<	}
527	<	catch (NullPointerException success) {}
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);
535	<	Integer[] ints = new Integer[SIZE];
536	<	for (int i = 0; i < SIZE; ++i)
537	<	ints[i] = new Integer(i);
538	<	q.addAll(Arrays.asList(ints));
535	>	q.addAll(elements);
536		shouldThrow();
537	<	}
541	<	catch (IllegalStateException success) {}
537	>	} catch (IllegalStateException success) {}
538		}
539	+
540		/**
541		* Deque contains all elements, in traversal order, of successful addAll
542		*/
543		public void testAddAll5() {
544	<	try {
545	<	Integer[] empty = new Integer[0];
546	<	Integer[] ints = new Integer[SIZE];
547	<	for (int i = 0; i < SIZE; ++i)
548	<	ints[i] = new Integer(i);
549	<	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
550	<	assertFalse(q.addAll(Arrays.asList(empty)));
551	<	assertTrue(q.addAll(Arrays.asList(ints)));
552	<	for (int i = 0; i < SIZE; ++i)
556	<	assertEquals(ints[i], q.poll());
557	<	}
558	<	finally {}
544	>	Integer[] empty = new Integer[0];
545	>	Integer[] ints = new Integer[SIZE];
546	>	for (int i = 0; i < SIZE; ++i)
547	>	ints[i] = new Integer(i);
548	>	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
549	>	assertFalse(q.addAll(Arrays.asList(empty)));
550	>	assertTrue(q.addAll(Arrays.asList(ints)));
551	>	for (int i = 0; i < SIZE; ++i)
552	>	assertEquals(ints[i], q.poll());
553		}
554
561	–
562	–	/**
563	–	* put(null) throws NPE
564	–	*/
565	–	public void testPutNull() {
566	–	try {
567	–	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
568	–	q.put(null);
569	–	shouldThrow();
570	–	}
571	–	catch (NullPointerException success) {
572	–	}
573	–	catch (InterruptedException ie) {
574	–	unexpectedException();
575	–	}
576	–	}
577	–
555		/**
556		* all elements successfully put are contained
557		*/
558	<	public void testPut() {
559	<	try {
560	<	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
561	<	for (int i = 0; i < SIZE; ++i) {
562	<	Integer I = new Integer(i);
563	<	q.put(I);
587	<	assertTrue(q.contains(I));
588	<	}
589	<	assertEquals(0, q.remainingCapacity());
590	<	}
591	<	catch (InterruptedException ie) {
592	<	unexpectedException();
558	>	public void testPut() throws InterruptedException {
559	>	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
560	>	for (int i = 0; i < SIZE; ++i) {
561	>	Integer x = new Integer(i);
562	>	q.put(x);
563	>	assertTrue(q.contains(x));
564		}
565	+	assertEquals(0, q.remainingCapacity());
566		}
567
568		/**
569		* put blocks interruptibly if full
570		*/
571	<	public void testBlockingPut() {
572	<	Thread t = new Thread(new Runnable() {
573	<	public void run() {
574	<	int added = 0;
575	<	try {
576	<	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
577	<	for (int i = 0; i < SIZE; ++i) {
578	<	q.put(new Integer(i));
579	<	++added;
580	<	}
581	<	q.put(new Integer(SIZE));
582	<	threadShouldThrow();
583	<	} catch (InterruptedException ie) {
584	<	threadAssertEquals(added, SIZE);
585	<	}
586	<	}});
587	<	t.start();
588	<	try {
589	<	Thread.sleep(SHORT_DELAY_MS);
590	<	t.interrupt();
591	<	t.join();
592	<	}
593	<	catch (InterruptedException ie) {
594	<	unexpectedException();
595	<	}
571	>	public void testBlockingPut() throws InterruptedException {
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	>	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	>	await(pleaseInterrupt);
597	>	assertThreadStaysAlive(t);
598	>	t.interrupt();
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() {
608	<	final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
609	<	Thread t = new Thread(new Runnable() {
610	<	public void run() {
611	<	int added = 0;
612	<	try {
613	<	q.put(new Object());
614	<	++added;
615	<	q.put(new Object());
616	<	++added;
617	<	q.put(new Object());
618	<	++added;
619	<	q.put(new Object());
620	<	++added;
621	<	threadShouldThrow();
622	<	} catch (InterruptedException e) {
623	<	threadAssertTrue(added >= 2);
624	<	}
625	<	}
626	<	});
627	<	try {
628	<	t.start();
629	<	Thread.sleep(SHORT_DELAY_MS);
630	<	q.take();
631	<	t.interrupt();
632	<	t.join();
633	<	} catch (Exception e) {
634	<	unexpectedException();
635	<	}
607	>	public void testPutWithTake() throws InterruptedException {
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(99);
622	>	shouldThrow();
623	>	} catch (InterruptedException success) {}
624	>	assertFalse(Thread.interrupted());
625	>	}});
626	>
627	>	await(pleaseTake);
628	>	assertEquals(0, q.remainingCapacity());
629	>	assertEquals(0, q.take());
630	>
631	>	await(pleaseInterrupt);
632	>	assertThreadStaysAlive(t);
633	>	t.interrupt();
634	>	awaitTermination(t);
635	>	assertEquals(0, q.remainingCapacity());
636		}
637
638		/**
639		* timed offer times out if full and elements not taken
640		*/
641	<	public void testTimedOffer() {
641	>	public void testTimedOffer() throws InterruptedException {
642		final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
643	<	Thread t = new Thread(new Runnable() {
644	<	public void run() {
645	<	try {
646	<	q.put(new Object());
647	<	q.put(new Object());
648	<	threadAssertFalse(q.offer(new Object(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
649	<	q.offer(new Object(), LONG_DELAY_MS, TimeUnit.MILLISECONDS);
650	<	threadShouldThrow();
651	<	} catch (InterruptedException success) {}
652	<	}
653	<	});
654	<
655	<	try {
656	<	t.start();
657	<	Thread.sleep(SMALL_DELAY_MS);
658	<	t.interrupt();
659	<	t.join();
660	<	} catch (Exception e) {
661	<	unexpectedException();
684	<	}
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	>	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	>	await(pleaseInterrupt);
659	>	assertThreadStaysAlive(t);
660	>	t.interrupt();
661	>	awaitTermination(t);
662		}
663
664		/**
665		* take retrieves elements in FIFO order
666		*/
667	<	public void testTake() {
668	<	try {
669	<	LinkedBlockingDeque q = populatedDeque(SIZE);
670	<	for (int i = 0; i < SIZE; ++i) {
671	<	assertEquals(i, ((Integer)q.take()).intValue());
695	<	}
696	<	} catch (InterruptedException e) {
697	<	unexpectedException();
698	<	}
667	>	public void testTake() throws InterruptedException {
668	>	LinkedBlockingDeque q = populatedDeque(SIZE);
669	>	for (int i = 0; i < SIZE; ++i) {
670	>	assertEquals(i, q.take());
671	>	}
672		}
673
674		/**
675	<	* take blocks interruptibly when empty
675	>	* take removes existing elements until empty, then blocks interruptibly
676		*/
677	<	public void testTakeFromEmpty() {
678	<	final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
679	<	Thread t = new Thread(new Runnable() {
680	<	public void run() {
681	<	try {
682	<	q.take();
683	<	threadShouldThrow();
711	<	} catch (InterruptedException success) { }
677	>	public void testBlockingTake() throws InterruptedException {
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 {
682	>	for (int i = 0; i < SIZE; ++i) {
683	>	assertEquals(i, q.take());
684		}
713	–	});
714	–	try {
715	–	t.start();
716	–	Thread.sleep(SHORT_DELAY_MS);
717	–	t.interrupt();
718	–	t.join();
719	–	} catch (Exception e) {
720	–	unexpectedException();
721	–	}
722	–	}
685
686	<	/**
687	<	* Take removes existing elements until empty, then blocks interruptibly
688	<	*/
689	<	public void testBlockingTake() {
690	<	Thread t = new Thread(new Runnable() {
691	<	public void run() {
730	<	try {
731	<	LinkedBlockingDeque q = populatedDeque(SIZE);
732	<	for (int i = 0; i < SIZE; ++i) {
733	<	assertEquals(i, ((Integer)q.take()).intValue());
734	<	}
735	<	q.take();
736	<	threadShouldThrow();
737	<	} catch (InterruptedException success) {
738	<	}
739	<	}});
740	<	t.start();
741	<	try {
742	<	Thread.sleep(SHORT_DELAY_MS);
743	<	t.interrupt();
744	<	t.join();
745	<	}
746	<	catch (InterruptedException ie) {
747	<	unexpectedException();
748	<	}
749	<	}
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	+	awaitTermination(t);
705	+	}
706
707		/**
708		* poll succeeds unless empty
#	Line 755 | Line 710 | public class LinkedBlockingDequeTest ext
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());
715	>	assertNull(q.poll());
716		}
717
718		/**
719		* timed poll with zero timeout succeeds when non-empty, else times out
720		*/
721	<	public void testTimedPoll0() {
722	<	try {
723	<	LinkedBlockingDeque q = populatedDeque(SIZE);
724	<	for (int i = 0; i < SIZE; ++i) {
725	<	assertEquals(i, ((Integer)q.poll(0, TimeUnit.MILLISECONDS)).intValue());
726	<	}
772	<	assertNull(q.poll(0, TimeUnit.MILLISECONDS));
773	<	} catch (InterruptedException e) {
774	<	unexpectedException();
775	<	}
721	>	public void testTimedPoll0() throws InterruptedException {
722	>	LinkedBlockingDeque q = populatedDeque(SIZE);
723	>	for (int i = 0; i < SIZE; ++i) {
724	>	assertEquals(i, q.poll(0, MILLISECONDS));
725	>	}
726	>	assertNull(q.poll(0, MILLISECONDS));
727		}
728
729		/**
730		* timed poll with nonzero timeout succeeds when non-empty, else times out
731		*/
732	<	public void testTimedPoll() {
733	<	try {
734	<	LinkedBlockingDeque q = populatedDeque(SIZE);
735	<	for (int i = 0; i < SIZE; ++i) {
736	<	assertEquals(i, ((Integer)q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS)).intValue());
737	<	}
738	<	assertNull(q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
739	<	} catch (InterruptedException e) {
740	<	unexpectedException();
741	<	}
732	>	public void testTimedPoll() throws InterruptedException {
733	>	LinkedBlockingDeque q = populatedDeque(SIZE);
734	>	for (int i = 0; i < SIZE; ++i) {
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		/**
746		* Interrupted timed poll throws InterruptedException instead of
747		* returning timeout status
748		*/
749	<	public void testInterruptedTimedPoll() {
750	<	Thread t = new Thread(new Runnable() {
751	<	public void run() {
752	<	try {
753	<	LinkedBlockingDeque q = populatedDeque(SIZE);
754	<	for (int i = 0; i < SIZE; ++i) {
755	<	threadAssertEquals(i, ((Integer)q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS)).intValue());
756	<	}
757	<	threadAssertNull(q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
806	<	} catch (InterruptedException success) {
807	<	}
808	<	}});
809	<	t.start();
810	<	try {
811	<	Thread.sleep(SHORT_DELAY_MS);
812	<	t.interrupt();
813	<	t.join();
814	<	}
815	<	catch (InterruptedException ie) {
816	<	unexpectedException();
817	<	}
818	<	}
819	<
820	<	/**
821	<	*  timed poll before a delayed offer fails; after offer succeeds;
822	<	*  on interruption throws
823	<	*/
824	<	public void testTimedPollWithOffer() {
825	<	final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
826	<	Thread t = new Thread(new Runnable() {
827	<	public void run() {
828	<	try {
829	<	threadAssertNull(q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
830	<	q.poll(LONG_DELAY_MS, TimeUnit.MILLISECONDS);
831	<	q.poll(LONG_DELAY_MS, TimeUnit.MILLISECONDS);
832	<	threadShouldThrow();
833	<	} catch (InterruptedException success) { }
749	>	public void testInterruptedTimedPoll() throws InterruptedException {
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 {
754	>	for (int i = 0; i < SIZE; ++i) {
755	>	long t0 = System.nanoTime();
756	>	assertEquals(i, (int) q.poll(LONG_DELAY_MS, MILLISECONDS));
757	>	assertTrue(millisElapsedSince(t0) < SMALL_DELAY_MS);
758		}
759	<	});
760	<	try {
761	<	t.start();
762	<	Thread.sleep(SMALL_DELAY_MS);
763	<	assertTrue(q.offer(zero, SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
764	<	t.interrupt();
765	<	t.join();
766	<	} catch (Exception e) {
767	<	unexpectedException();
768	<	}
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	>	aboutToWait.await();
770	>	waitForThreadToEnterWaitState(t, SMALL_DELAY_MS);
771	>	t.interrupt();
772	>	awaitTermination(t, MEDIUM_DELAY_MS);
773	>	checkEmpty(q);
774		}
775
847	–
776		/**
777		* putFirst(null) throws NPE
778		*/
779	<	public void testPutFirstNull() {
780	<	try {
781	<	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
779	>	public void testPutFirstNull() throws InterruptedException {
780	>	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
781	>	try {
782		q.putFirst(null);
783		shouldThrow();
784	<	}
785	<	catch (NullPointerException success) {
858	<	}
859	<	catch (InterruptedException ie) {
860	<	unexpectedException();
861	<	}
862	<	}
784	>	} catch (NullPointerException success) {}
785	>	}
786
787		/**
788		* all elements successfully putFirst are contained
789		*/
790	<	public void testPutFirst() {
791	<	try {
792	<	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
793	<	for (int i = 0; i < SIZE; ++i) {
794	<	Integer I = new Integer(i);
795	<	q.putFirst(I);
873	<	assertTrue(q.contains(I));
874	<	}
875	<	assertEquals(0, q.remainingCapacity());
876	<	}
877	<	catch (InterruptedException ie) {
878	<	unexpectedException();
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() {
804	<	Thread t = new Thread(new Runnable() {
805	<	public void run() {
806	<	int added = 0;
807	<	try {
808	<	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
809	<	for (int i = 0; i < SIZE; ++i) {
810	<	q.putFirst(new Integer(i));
811	<	++added;
812	<	}
813	<	q.putFirst(new Integer(SIZE));
814	<	threadShouldThrow();
815	<	} catch (InterruptedException ie) {
816	<	threadAssertEquals(added, SIZE);
817	<	}
818	<	}});
819	<	t.start();
820	<	try {
821	<	Thread.sleep(SHORT_DELAY_MS);
822	<	t.interrupt();
823	<	t.join();
824	<	}
825	<	catch (InterruptedException ie) {
826	<	unexpectedException();
827	<	}
803	>	public void testBlockingPutFirst() throws InterruptedException {
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	>	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	>	await(pleaseInterrupt);
829	>	assertThreadStaysAlive(t);
830	>	t.interrupt();
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() {
840	<	final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
841	<	Thread t = new Thread(new Runnable() {
842	<	public void run() {
843	<	int added = 0;
844	<	try {
845	<	q.putFirst(new Object());
846	<	++added;
847	<	q.putFirst(new Object());
848	<	++added;
849	<	q.putFirst(new Object());
850	<	++added;
851	<	q.putFirst(new Object());
852	<	++added;
853	<	threadShouldThrow();
854	<	} catch (InterruptedException e) {
855	<	threadAssertTrue(added >= 2);
856	<	}
857	<	}
858	<	});
859	<	try {
860	<	t.start();
861	<	Thread.sleep(SHORT_DELAY_MS);
862	<	q.take();
863	<	t.interrupt();
864	<	t.join();
865	<	} catch (Exception e) {
866	<	unexpectedException();
867	<	}
839	>	public void testPutFirstWithTake() throws InterruptedException {
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(99);
854	>	shouldThrow();
855	>	} catch (InterruptedException success) {}
856	>	assertFalse(Thread.interrupted());
857	>	}});
858	>
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	>	awaitTermination(t);
867	>	assertEquals(0, q.remainingCapacity());
868		}
869
870		/**
871		* timed offerFirst times out if full and elements not taken
872		*/
873	<	public void testTimedOfferFirst() {
873	>	public void testTimedOfferFirst() throws InterruptedException {
874		final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
875	<	Thread t = new Thread(new Runnable() {
876	<	public void run() {
877	<	try {
878	<	q.putFirst(new Object());
879	<	q.putFirst(new Object());
880	<	threadAssertFalse(q.offerFirst(new Object(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
881	<	q.offerFirst(new Object(), LONG_DELAY_MS, TimeUnit.MILLISECONDS);
882	<	threadShouldThrow();
883	<	} catch (InterruptedException success) {}
884	<	}
885	<	});
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	>	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	>	await(pleaseInterrupt);
891	>	assertThreadStaysAlive(t);
892	>	t.interrupt();
893	>	awaitTermination(t);
894	>	}
895
896	<	try {
897	<	t.start();
898	<	Thread.sleep(SMALL_DELAY_MS);
899	<	t.interrupt();
900	<	t.join();
901	<	} catch (Exception e) {
902	<	unexpectedException();
896	>	/**
897	>	* take retrieves elements in FIFO order
898	>	*/
899	>	public void testTakeFirst() throws InterruptedException {
900	>	LinkedBlockingDeque q = populatedDeque(SIZE);
901	>	for (int i = 0; i < SIZE; ++i) {
902	>	assertEquals(i, q.takeFirst());
903		}
904		}
905
906		/**
907	<	* take retrieves elements in FIFO order
907	>	* takeFirst() blocks interruptibly when empty
908		*/
909	<	public void testTakeFirst() {
910	<	try {
911	<	LinkedBlockingDeque q = populatedDeque(SIZE);
912	<	for (int i = 0; i < SIZE; ++i) {
913	<	assertEquals(i, ((Integer)q.takeFirst()).intValue());
914	<	}
915	<	} catch (InterruptedException e) {
916	<	unexpectedException();
917	<	}
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	>	await(threadStarted);
923	>	assertThreadStaysAlive(t);
924	>	t.interrupt();
925	>	awaitTermination(t);
926		}
927
928		/**
929	<	* takeFirst blocks interruptibly when empty
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 testTakeFirstFromEmpty() {
951	<	final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
952	<	Thread t = new Thread(new Runnable() {
953	<	public void run() {
954	<	try {
955	<	q.takeFirst();
956	<	threadShouldThrow();
957	<	} catch (InterruptedException success) { }
958	<	}
959	<	});
960	<	try {
961	<	t.start();
962	<	Thread.sleep(SHORT_DELAY_MS);
963	<	t.interrupt();
964	<	t.join();
965	<	} catch (Exception e) {
966	<	unexpectedException();
1007	<	}
950	>	public void testTakeLastFromEmptyBlocksInterruptibly() {
951	>	final BlockingDeque q = new LinkedBlockingDeque();
952	>	final CountDownLatch threadStarted = new CountDownLatch(1);
953	>	Thread t = newStartedThread(new CheckedRunnable() {
954	>	public void realRun() {
955	>	threadStarted.countDown();
956	>	try {
957	>	q.takeLast();
958	>	shouldThrow();
959	>	} catch (InterruptedException success) {}
960	>	assertFalse(Thread.interrupted());
961	>	}});
962	>
963	>	await(threadStarted);
964	>	assertThreadStaysAlive(t);
965	>	t.interrupt();
966	>	awaitTermination(t);
967		}
968
969		/**
970	<	* TakeFirst removes existing elements until empty, then blocks interruptibly
971	<	*/
972	<	public void testBlockingTakeFirst() {
973	<	Thread t = new Thread(new Runnable() {
974	<	public void run() {
975	<	try {
976	<	LinkedBlockingDeque q = populatedDeque(SIZE);
977	<	for (int i = 0; i < SIZE; ++i) {
978	<	assertEquals(i, ((Integer)q.takeFirst()).intValue());
979	<	}
980	<	q.takeFirst();
981	<	threadShouldThrow();
982	<	} catch (InterruptedException success) {
983	<	}
984	<	}});
985	<	t.start();
1027	<	try {
1028	<	Thread.sleep(SHORT_DELAY_MS);
1029	<	t.interrupt();
1030	<	t.join();
1031	<	}
1032	<	catch (InterruptedException ie) {
1033	<	unexpectedException();
1034	<	}
970	>	* takeLast() throws InterruptedException immediately if interrupted
971	>	* before waiting
972	>	*/
973	>	public void testTakeLastFromEmptyAfterInterrupt() {
974	>	final BlockingDeque q = new LinkedBlockingDeque();
975	>	Thread t = newStartedThread(new CheckedRunnable() {
976	>	public void realRun() {
977	>	Thread.currentThread().interrupt();
978	>	try {
979	>	q.takeLast();
980	>	shouldThrow();
981	>	} catch (InterruptedException success) {}
982	>	assertFalse(Thread.interrupted());
983	>	}});
984	>
985	>	awaitTermination(t);
986		}
987
988	+	/**
989	+	* takeFirst removes existing elements until empty, then blocks interruptibly
990	+	*/
991	+	public void testBlockingTakeFirst() throws InterruptedException {
992	+	final LinkedBlockingDeque q = populatedDeque(SIZE);
993	+	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
994	+	Thread t = newStartedThread(new CheckedRunnable() {
995	+	public void realRun() throws InterruptedException {
996	+	for (int i = 0; i < SIZE; ++i) {
997	+	assertEquals(i, q.takeFirst());
998	+	}
999	+
1000	+	Thread.currentThread().interrupt();
1001	+	try {
1002	+	q.takeFirst();
1003	+	shouldThrow();
1004	+	} catch (InterruptedException success) {}
1005	+	assertFalse(Thread.interrupted());
1006	+
1007	+	pleaseInterrupt.countDown();
1008	+	try {
1009	+	q.takeFirst();
1010	+	shouldThrow();
1011	+	} catch (InterruptedException success) {}
1012	+	assertFalse(Thread.interrupted());
1013	+	}});
1014	+
1015	+	await(pleaseInterrupt);
1016	+	assertThreadStaysAlive(t);
1017	+	t.interrupt();
1018	+	awaitTermination(t);
1019	+	}
1020
1021		/**
1022		* timed pollFirst with zero timeout succeeds when non-empty, else times out
1023		*/
1024	<	public void testTimedPollFirst0() {
1025	<	try {
1026	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1027	<	for (int i = 0; i < SIZE; ++i) {
1028	<	assertEquals(i, ((Integer)q.pollFirst(0, TimeUnit.MILLISECONDS)).intValue());
1029	<	}
1047	<	assertNull(q.pollFirst(0, TimeUnit.MILLISECONDS));
1048	<	} catch (InterruptedException e) {
1049	<	unexpectedException();
1050	<	}
1024	>	public void testTimedPollFirst0() throws InterruptedException {
1025	>	LinkedBlockingDeque q = populatedDeque(SIZE);
1026	>	for (int i = 0; i < SIZE; ++i) {
1027	>	assertEquals(i, q.pollFirst(0, MILLISECONDS));
1028	>	}
1029	>	assertNull(q.pollFirst(0, MILLISECONDS));
1030		}
1031
1032		/**
1033		* timed pollFirst with nonzero timeout succeeds when non-empty, else times out
1034		*/
1035	<	public void testTimedPollFirst() {
1036	<	try {
1037	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1038	<	for (int i = 0; i < SIZE; ++i) {
1039	<	assertEquals(i, ((Integer)q.pollFirst(SHORT_DELAY_MS, TimeUnit.MILLISECONDS)).intValue());
1040	<	}
1041	<	assertNull(q.pollFirst(SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
1042	<	} catch (InterruptedException e) {
1043	<	unexpectedException();
1044	<	}
1035	>	public void testTimedPollFirst() throws InterruptedException {
1036	>	LinkedBlockingDeque q = populatedDeque(SIZE);
1037	>	for (int i = 0; i < SIZE; ++i) {
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		/**
1049		* Interrupted timed pollFirst throws InterruptedException instead of
1050		* returning timeout status
1051		*/
1052	<	public void testInterruptedTimedPollFirst() {
1053	<	Thread t = new Thread(new Runnable() {
1054	<	public void run() {
1055	<	try {
1056	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1057	<	for (int i = 0; i < SIZE; ++i) {
1058	<	threadAssertEquals(i, ((Integer)q.pollFirst(SHORT_DELAY_MS, TimeUnit.MILLISECONDS)).intValue());
1059	<	}
1060	<	threadAssertNull(q.pollFirst(SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
1061	<	} catch (InterruptedException success) {
1062	<	}
1063	<	}});
1064	<	t.start();
1065	<	try {
1066	<	Thread.sleep(SHORT_DELAY_MS);
1067	<	t.interrupt();
1068	<	t.join();
1069	<	}
1070	<	catch (InterruptedException ie) {
1071	<	unexpectedException();
1072	<	}
1052	>	public void testInterruptedTimedPollFirst() throws InterruptedException {
1053	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
1054	>	Thread t = newStartedThread(new CheckedRunnable() {
1055	>	public void realRun() throws InterruptedException {
1056	>	LinkedBlockingDeque q = populatedDeque(SIZE);
1057	>	for (int i = 0; i < SIZE; ++i) {
1058	>	assertEquals(i, q.pollFirst(LONG_DELAY_MS, MILLISECONDS));
1059	>	}
1060	>
1061	>	Thread.currentThread().interrupt();
1062	>	try {
1063	>	q.pollFirst(SMALL_DELAY_MS, MILLISECONDS);
1064	>	shouldThrow();
1065	>	} catch (InterruptedException success) {}
1066	>	assertFalse(Thread.interrupted());
1067	>
1068	>	pleaseInterrupt.countDown();
1069	>	try {
1070	>	q.pollFirst(LONG_DELAY_MS, MILLISECONDS);
1071	>	shouldThrow();
1072	>	} catch (InterruptedException success) {}
1073	>	assertFalse(Thread.interrupted());
1074	>	}});
1075	>
1076	>	await(pleaseInterrupt);
1077	>	assertThreadStaysAlive(t);
1078	>	t.interrupt();
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() {
1086	>	public void testTimedPollFirstWithOfferFirst() throws InterruptedException {
1087		final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
1088	<	Thread t = new Thread(new Runnable() {
1089	<	public void run() {
1090	<	try {
1091	<	threadAssertNull(q.pollFirst(SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
1092	<	q.pollFirst(LONG_DELAY_MS, TimeUnit.MILLISECONDS);
1093	<	q.pollFirst(LONG_DELAY_MS, TimeUnit.MILLISECONDS);
1094	<	threadShouldThrow();
1095	<	} catch (InterruptedException success) { }
1096	<	}
1097	<	});
1098	<	try {
1099	<	t.start();
1100	<	Thread.sleep(SMALL_DELAY_MS);
1101	<	assertTrue(q.offerFirst(zero, SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
1102	<	t.interrupt();
1103	<	t.join();
1104	<	} catch (Exception e) {
1105	<	unexpectedException();
1106	<	}
1088	>	final CheckedBarrier barrier = new CheckedBarrier(2);
1089	>	Thread t = newStartedThread(new CheckedRunnable() {
1090	>	public void realRun() throws InterruptedException {
1091	>	long startTime = System.nanoTime();
1092	>	assertNull(q.pollFirst(timeoutMillis(), MILLISECONDS));
1093	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
1094	>
1095	>	barrier.await();
1096	>
1097	>	assertSame(zero, q.pollFirst(LONG_DELAY_MS, MILLISECONDS));
1098	>
1099	>	Thread.currentThread().interrupt();
1100	>	try {
1101	>	q.pollFirst(LONG_DELAY_MS, MILLISECONDS);
1102	>	shouldThrow();
1103	>	} catch (InterruptedException success) {}
1104	>
1105	>	barrier.await();
1106	>	try {
1107	>	q.pollFirst(LONG_DELAY_MS, MILLISECONDS);
1108	>	shouldThrow();
1109	>	} catch (InterruptedException success) {}
1110	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1111	>	}});
1112	>
1113	>	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	>	awaitTermination(t);
1121		}
1122
1123		/**
1124		* putLast(null) throws NPE
1125		*/
1126	<	public void testPutLastNull() {
1127	<	try {
1128	<	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
1126	>	public void testPutLastNull() throws InterruptedException {
1127	>	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
1128	>	try {
1129		q.putLast(null);
1130		shouldThrow();
1131	<	}
1132	<	catch (NullPointerException success) {
1132	<	}
1133	<	catch (InterruptedException ie) {
1134	<	unexpectedException();
1135	<	}
1136	<	}
1131	>	} catch (NullPointerException success) {}
1132	>	}
1133
1134		/**
1135		* all elements successfully putLast are contained
1136		*/
1137	<	public void testPutLast() {
1138	<	try {
1139	<	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
1140	<	for (int i = 0; i < SIZE; ++i) {
1141	<	Integer I = new Integer(i);
1142	<	q.putLast(I);
1147	<	assertTrue(q.contains(I));
1148	<	}
1149	<	assertEquals(0, q.remainingCapacity());
1150	<	}
1151	<	catch (InterruptedException ie) {
1152	<	unexpectedException();
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() {
1151	<	Thread t = new Thread(new Runnable() {
1152	<	public void run() {
1153	<	int added = 0;
1154	<	try {
1155	<	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
1156	<	for (int i = 0; i < SIZE; ++i) {
1157	<	q.putLast(new Integer(i));
1158	<	++added;
1159	<	}
1160	<	q.putLast(new Integer(SIZE));
1161	<	threadShouldThrow();
1162	<	} catch (InterruptedException ie) {
1163	<	threadAssertEquals(added, SIZE);
1164	<	}
1165	<	}});
1166	<	t.start();
1167	<	try {
1168	<	Thread.sleep(SHORT_DELAY_MS);
1169	<	t.interrupt();
1170	<	t.join();
1171	<	}
1172	<	catch (InterruptedException ie) {
1173	<	unexpectedException();
1174	<	}
1150	>	public void testBlockingPutLast() throws InterruptedException {
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	>	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	>	await(pleaseInterrupt);
1176	>	assertThreadStaysAlive(t);
1177	>	t.interrupt();
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() {
1187	<	final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
1188	<	Thread t = new Thread(new Runnable() {
1189	<	public void run() {
1190	<	int added = 0;
1191	<	try {
1192	<	q.putLast(new Object());
1193	<	++added;
1194	<	q.putLast(new Object());
1195	<	++added;
1196	<	q.putLast(new Object());
1197	<	++added;
1198	<	q.putLast(new Object());
1199	<	++added;
1200	<	threadShouldThrow();
1201	<	} catch (InterruptedException e) {
1202	<	threadAssertTrue(added >= 2);
1203	<	}
1204	<	}
1205	<	});
1206	<	try {
1207	<	t.start();
1208	<	Thread.sleep(SHORT_DELAY_MS);
1209	<	q.take();
1210	<	t.interrupt();
1211	<	t.join();
1212	<	} catch (Exception e) {
1213	<	unexpectedException();
1214	<	}
1186	>	public void testPutLastWithTake() throws InterruptedException {
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(99);
1201	>	shouldThrow();
1202	>	} catch (InterruptedException success) {}
1203	>	assertFalse(Thread.interrupted());
1204	>	}});
1205	>
1206	>	await(pleaseTake);
1207	>	assertEquals(0, q.remainingCapacity());
1208	>	assertEquals(0, q.take());
1209	>
1210	>	await(pleaseInterrupt);
1211	>	assertThreadStaysAlive(t);
1212	>	t.interrupt();
1213	>	awaitTermination(t);
1214	>	assertEquals(0, q.remainingCapacity());
1215		}
1216
1217		/**
1218		* timed offerLast times out if full and elements not taken
1219		*/
1220	<	public void testTimedOfferLast() {
1220	>	public void testTimedOfferLast() throws InterruptedException {
1221		final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
1222	<	Thread t = new Thread(new Runnable() {
1223	<	public void run() {
1224	<	try {
1225	<	q.putLast(new Object());
1226	<	q.putLast(new Object());
1227	<	threadAssertFalse(q.offerLast(new Object(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
1228	<	q.offerLast(new Object(), LONG_DELAY_MS, TimeUnit.MILLISECONDS);
1229	<	threadShouldThrow();
1230	<	} catch (InterruptedException success) {}
1231	<	}
1232	<	});
1233	<
1234	<	try {
1235	<	t.start();
1236	<	Thread.sleep(SMALL_DELAY_MS);
1237	<	t.interrupt();
1238	<	t.join();
1239	<	} catch (Exception e) {
1240	<	unexpectedException();
1244	<	}
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	>	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	>	await(pleaseInterrupt);
1238	>	assertThreadStaysAlive(t);
1239	>	t.interrupt();
1240	>	awaitTermination(t);
1241		}
1242
1243		/**
1244		* takeLast retrieves elements in FIFO order
1245		*/
1246	<	public void testTakeLast() {
1247	<	try {
1248	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1249	<	for (int i = 0; i < SIZE; ++i) {
1250	<	assertEquals(SIZE-i-1, ((Integer)q.takeLast()).intValue());
1255	<	}
1256	<	} catch (InterruptedException e) {
1257	<	unexpectedException();
1258	<	}
1246	>	public void testTakeLast() throws InterruptedException {
1247	>	LinkedBlockingDeque q = populatedDeque(SIZE);
1248	>	for (int i = 0; i < SIZE; ++i) {
1249	>	assertEquals(SIZE-i-1, q.takeLast());
1250	>	}
1251		}
1252
1253		/**
1254	<	* takeLast blocks interruptibly when empty
1254	>	* takeLast removes existing elements until empty, then blocks interruptibly
1255		*/
1256	<	public void testTakeLastFromEmpty() {
1257	<	final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
1258	<	Thread t = new Thread(new Runnable() {
1259	<	public void run() {
1260	<	try {
1261	<	q.takeLast();
1262	<	threadShouldThrow();
1271	<	} catch (InterruptedException success) { }
1256	>	public void testBlockingTakeLast() throws InterruptedException {
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 {
1261	>	for (int i = 0; i < SIZE; ++i) {
1262	>	assertEquals(SIZE-i-1, q.takeLast());
1263		}
1273	–	});
1274	–	try {
1275	–	t.start();
1276	–	Thread.sleep(SHORT_DELAY_MS);
1277	–	t.interrupt();
1278	–	t.join();
1279	–	} catch (Exception e) {
1280	–	unexpectedException();
1281	–	}
1282	–	}
1264
1265	<	/**
1266	<	* TakeLast removes existing elements until empty, then blocks interruptibly
1267	<	*/
1268	<	public void testBlockingTakeLast() {
1269	<	Thread t = new Thread(new Runnable() {
1270	<	public void run() {
1290	<	try {
1291	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1292	<	for (int i = 0; i < SIZE; ++i) {
1293	<	assertEquals(SIZE-i-1, ((Integer)q.takeLast()).intValue());
1294	<	}
1295	<	q.takeLast();
1296	<	threadShouldThrow();
1297	<	} catch (InterruptedException success) {
1298	<	}
1299	<	}});
1300	<	t.start();
1301	<	try {
1302	<	Thread.sleep(SHORT_DELAY_MS);
1303	<	t.interrupt();
1304	<	t.join();
1305	<	}
1306	<	catch (InterruptedException ie) {
1307	<	unexpectedException();
1308	<	}
1309	<	}
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	+	awaitTermination(t);
1284	+	}
1285
1286		/**
1287		* timed pollLast with zero timeout succeeds when non-empty, else times out
1288		*/
1289	<	public void testTimedPollLast0() {
1290	<	try {
1291	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1292	<	for (int i = 0; i < SIZE; ++i) {
1293	<	assertEquals(SIZE-i-1, ((Integer)q.pollLast(0, TimeUnit.MILLISECONDS)).intValue());
1294	<	}
1321	<	assertNull(q.pollLast(0, TimeUnit.MILLISECONDS));
1322	<	} catch (InterruptedException e) {
1323	<	unexpectedException();
1324	<	}
1289	>	public void testTimedPollLast0() throws InterruptedException {
1290	>	LinkedBlockingDeque q = populatedDeque(SIZE);
1291	>	for (int i = 0; i < SIZE; ++i) {
1292	>	assertEquals(SIZE-i-1, q.pollLast(0, MILLISECONDS));
1293	>	}
1294	>	assertNull(q.pollLast(0, MILLISECONDS));
1295		}
1296
1297		/**
1298		* timed pollLast with nonzero timeout succeeds when non-empty, else times out
1299		*/
1300	<	public void testTimedPollLast() {
1301	<	try {
1302	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1303	<	for (int i = 0; i < SIZE; ++i) {
1304	<	assertEquals(SIZE-i-1, ((Integer)q.pollLast(SHORT_DELAY_MS, TimeUnit.MILLISECONDS)).intValue());
1305	<	}
1306	<	assertNull(q.pollLast(SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
1307	<	} catch (InterruptedException e) {
1308	<	unexpectedException();
1309	<	}
1300	>	public void testTimedPollLast() throws InterruptedException {
1301	>	LinkedBlockingDeque q = populatedDeque(SIZE);
1302	>	for (int i = 0; i < SIZE; ++i) {
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		/**
1314		* Interrupted timed pollLast throws InterruptedException instead of
1315		* returning timeout status
1316		*/
1317	<	public void testInterruptedTimedPollLast() {
1318	<	Thread t = new Thread(new Runnable() {
1319	<	public void run() {
1320	<	try {
1321	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1322	<	for (int i = 0; i < SIZE; ++i) {
1323	<	threadAssertEquals(SIZE-i-1, ((Integer)q.pollLast(SHORT_DELAY_MS, TimeUnit.MILLISECONDS)).intValue());
1324	<	}
1325	<	threadAssertNull(q.pollLast(SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
1326	<	} catch (InterruptedException success) {
1327	<	}
1328	<	}});
1329	<	t.start();
1330	<	try {
1331	<	Thread.sleep(SHORT_DELAY_MS);
1332	<	t.interrupt();
1333	<	t.join();
1334	<	}
1335	<	catch (InterruptedException ie) {
1336	<	unexpectedException();
1337	<	}
1317	>	public void testInterruptedTimedPollLast() throws InterruptedException {
1318	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
1319	>	Thread t = newStartedThread(new CheckedRunnable() {
1320	>	public void realRun() throws InterruptedException {
1321	>	LinkedBlockingDeque q = populatedDeque(SIZE);
1322	>	for (int i = 0; i < SIZE; ++i) {
1323	>	assertEquals(SIZE-i-1, q.pollLast(LONG_DELAY_MS, MILLISECONDS));
1324	>	}
1325	>
1326	>	Thread.currentThread().interrupt();
1327	>	try {
1328	>	q.pollLast(LONG_DELAY_MS, MILLISECONDS);
1329	>	shouldThrow();
1330	>	} catch (InterruptedException success) {}
1331	>	assertFalse(Thread.interrupted());
1332	>
1333	>	pleaseInterrupt.countDown();
1334	>	try {
1335	>	q.pollLast(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	>	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() {
1351	>	public void testTimedPollWithOfferLast() throws InterruptedException {
1352		final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
1353	<	Thread t = new Thread(new Runnable() {
1354	<	public void run() {
1355	<	try {
1356	<	threadAssertNull(q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
1357	<	q.poll(LONG_DELAY_MS, TimeUnit.MILLISECONDS);
1358	<	q.poll(LONG_DELAY_MS, TimeUnit.MILLISECONDS);
1381	<	threadShouldThrow();
1382	<	} catch (InterruptedException success) { }
1383	<	}
1384	<	});
1385	<	try {
1386	<	t.start();
1387	<	Thread.sleep(SMALL_DELAY_MS);
1388	<	assertTrue(q.offerLast(zero, SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
1389	<	t.interrupt();
1390	<	t.join();
1391	<	} catch (Exception e) {
1392	<	unexpectedException();
1393	<	}
1394	<	}
1353	>	final CheckedBarrier barrier = new CheckedBarrier(2);
1354	>	Thread t = newStartedThread(new CheckedRunnable() {
1355	>	public void realRun() throws InterruptedException {
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	+	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	+	awaitTermination(t);
1388	+	}
1389
1390		/**
1391		* element returns next element, or throws NSEE if empty
#	Line 1400 | Line 1393 | public class LinkedBlockingDequeTest ext
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 {
1400		q.element();
1401		shouldThrow();
1402	<	}
1410	<	catch (NoSuchElementException success) {}
1411	<	}
1412	<
1413	<	/**
1414	<	* remove(x) removes x and returns true if present
1415	<	*/
1416	<	public void testRemoveElement() {
1417	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1418	<	for (int i = 1; i < SIZE; i+=2) {
1419	<	assertTrue(q.remove(new Integer(i)));
1420	<	}
1421	<	for (int i = 0; i < SIZE; i+=2) {
1422	<	assertTrue(q.remove(new Integer(i)));
1423	<	assertFalse(q.remove(new Integer(i+1)));
1424	<	}
1425	<	assertTrue(q.isEmpty());
1402	>	} catch (NoSuchElementException success) {}
1403		}
1404
1405		/**
#	Line 1496 | 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() {
1485	>	public void testToArray() throws InterruptedException {
1486		LinkedBlockingDeque q = populatedDeque(SIZE);
1487	<	Object[] o = q.toArray();
1488	<	try {
1489	<	for (int i = 0; i < o.length; i++)
1513	<	assertEquals(o[i], q.take());
1514	<	} catch (InterruptedException e) {
1515	<	unexpectedException();
1516	<	}
1487	>	Object[] o = q.toArray();
1488	>	for (int i = 0; i < o.length; i++)
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() {
1496	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1497	<	Integer[] ints = new Integer[SIZE];
1498	<	ints = (Integer[])q.toArray(ints);
1499	<	try {
1500	<	for (int i = 0; i < ints.length; i++)
1501	<	assertEquals(ints[i], q.take());
1529	<	} catch (InterruptedException e) {
1530	<	unexpectedException();
1531	<	}
1496	>	LinkedBlockingDeque<Integer> q = populatedDeque(SIZE);
1497	>	Integer[] ints = new Integer[SIZE];
1498	>	Integer[] array = q.toArray(ints);
1499	>	assertSame(ints, array);
1500	>	for (int i = 0; i < ints.length; i++)
1501	>	assertSame(ints[i], q.remove());
1502		}
1503
1504		/**
1505	<	* toArray(null) throws NPE
1505	>	* toArray(incompatible array type) throws ArrayStoreException
1506		*/
1507	<	public void testToArray_BadArg() {
1508	<	try {
1509	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1510	<	Object o[] = q.toArray(null);
1511	<	shouldThrow();
1512	<	} catch (NullPointerException success) {}
1507	>	public void testToArray1_BadArg() {
1508	>	LinkedBlockingDeque q = populatedDeque(SIZE);
1509	>	try {
1510	>	q.toArray(new String[10]);
1511	>	shouldThrow();
1512	>	} catch (ArrayStoreException success) {}
1513		}
1514
1515		/**
1516	<	* toArray with incompatible array type throws CCE
1516	>	* iterator iterates through all elements
1517		*/
1518	<	public void testToArray1_BadArg() {
1519	<	try {
1520	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1521	<	Object o[] = q.toArray(new String[10] );
1522	<	shouldThrow();
1523	<	} catch (ArrayStoreException  success) {}
1524	<	}
1518	>	public void testIterator() throws InterruptedException {
1519	>	LinkedBlockingDeque q = populatedDeque(SIZE);
1520	>	Iterator it = q.iterator();
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	+	assertEquals(i, SIZE);
1531	+	assertIteratorExhausted(it);
1532	+	}
1533
1534		/**
1535	<	* iterator iterates through all elements
1535	>	* iterator of empty collection has no elements
1536		*/
1537	<	public void testIterator() {
1538	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1539	<	Iterator it = q.iterator();
1540	<	try {
1564	<	while (it.hasNext()) {
1565	<	assertEquals(it.next(), q.take());
1566	<	}
1567	<	} catch (InterruptedException e) {
1568	<	unexpectedException();
1569	<	}
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 1583 | 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
1591	–
1562		/**
1563		* iterator ordering is FIFO
1564		*/
#	Line 1600 | 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();
1604	<	assertEquals(++k, i);
1573	>	assertEquals(++k, it.next());
1574		}
1575		assertEquals(3, k);
1576		}
#	Line 1609 | 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);
1585		q.add(three);
1586	<	try {
1587	<	for (Iterator it = q.iterator(); it.hasNext();) {
1588	<	q.remove();
1620	<	it.next();
1621	<	}
1622	<	}
1623	<	catch (ConcurrentModificationException e) {
1624	<	unexpectedException();
1586	>	for (Iterator it = q.iterator(); it.hasNext();) {
1587	>	q.remove();
1588	>	it.next();
1589		}
1590		assertEquals(0, q.size());
1591		}
1592
1629	–
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);
1598		int i = 0;
1599	<	Iterator it = q.descendingIterator();
1599	>	Iterator it = q.descendingIterator();
1600		while (it.hasNext()) {
1601		assertTrue(q.contains(it.next()));
1602		++i;
#	Line 1642 | Line 1605 | public class LinkedBlockingDequeTest ext
1605		assertFalse(it.hasNext());
1606		try {
1607		it.next();
1608	<	} catch (NoSuchElementException success) {
1609	<	}
1608	>	shouldThrow();
1609	>	} catch (NoSuchElementException success) {}
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 1657 | 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();
1661	<	assertEquals(++k, i);
1623	>	assertEquals(++k, it.next());
1624		}
1625
1626		assertEquals(3, k);
#	Line 1671 | 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 1690 | Line 1652 | public class LinkedBlockingDequeTest ext
1652		}
1653		}
1654
1693	–
1655		/**
1656		* toString contains toStrings of elements
1657		*/
#	Line 1698 | 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
1705	–
1666		/**
1667		* offer transfers elements across Executor tasks
1668		*/
#	Line 1711 | Line 1671 | public class LinkedBlockingDequeTest ext
1671		q.add(one);
1672		q.add(two);
1673		ExecutorService executor = Executors.newFixedThreadPool(2);
1674	<	executor.execute(new Runnable() {
1675	<	public void run() {
1676	<	threadAssertFalse(q.offer(three));
1677	<	try {
1678	<	threadAssertTrue(q.offer(three, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS));
1679	<	threadAssertEquals(0, q.remainingCapacity());
1680	<	}
1681	<	catch (InterruptedException e) {
1682	<	threadUnexpectedException();
1683	<	}
1684	<	}
1685	<	});
1686	<
1687	<	executor.execute(new Runnable() {
1728	<	public void run() {
1729	<	try {
1730	<	Thread.sleep(SMALL_DELAY_MS);
1731	<	threadAssertEquals(one, q.take());
1732	<	}
1733	<	catch (InterruptedException e) {
1734	<	threadUnexpectedException();
1735	<	}
1736	<	}
1737	<	});
1674	>	final CheckedBarrier threadsStarted = new CheckedBarrier(2);
1675	>	executor.execute(new CheckedRunnable() {
1676	>	public void realRun() throws InterruptedException {
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	>	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 Runnable() {
1700	<	public void run() {
1701	<	threadAssertNull(q.poll());
1702	<	try {
1703	<	threadAssertTrue(null != q.poll(MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS));
1704	<	threadAssertTrue(q.isEmpty());
1705	<	}
1706	<	catch (InterruptedException e) {
1707	<	threadUnexpectedException();
1708	<	}
1709	<	}
1710	<	});
1711	<
1761	<	executor.execute(new Runnable() {
1762	<	public void run() {
1763	<	try {
1764	<	Thread.sleep(SMALL_DELAY_MS);
1765	<	q.put(one);
1766	<	}
1767	<	catch (InterruptedException e) {
1768	<	threadUnexpectedException();
1769	<	}
1770	<	}
1771	<	});
1699	>	executor.execute(new CheckedRunnable() {
1700	>	public void realRun() throws InterruptedException {
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	>	threadsStarted.await();
1710	>	q.put(one);
1711	>	}});
1712
1713		joinPool(executor);
1714		}
#	Line 1776 | Line 1716 | public class LinkedBlockingDequeTest ext
1716		/**
1717		* A deserialized serialized deque has same elements in same order
1718		*/
1719	<	public void testSerialization() {
1720	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1721	<
1722	<	try {
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));
1790	<	LinkedBlockingDeque r = (LinkedBlockingDeque)in.readObject();
1791	<	assertEquals(q.size(), r.size());
1792	<	while (!q.isEmpty())
1793	<	assertEquals(q.remove(), r.remove());
1794	<	} catch (Exception e) {
1795	<	unexpectedException();
1796	<	}
1797	<	}
1798	<
1799	<	/**
1800	<	* drainTo(null) throws NPE
1801	<	*/
1802	<	public void testDrainToNull() {
1803	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1804	<	try {
1805	<	q.drainTo(null);
1806	<	shouldThrow();
1807	<	} catch (NullPointerException success) {
1808	<	}
1809	<	}
1810	<
1811	<	/**
1812	<	* drainTo(this) throws IAE
1813	<	*/
1814	<	public void testDrainToSelf() {
1815	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1816	<	try {
1817	<	q.drainTo(q);
1818	<	shouldThrow();
1819	<	} catch (IllegalArgumentException success) {
1719	>	public void testSerialization() throws Exception {
1720	>	Queue x = populatedDeque(SIZE);
1721	>	Queue y = serialClone(x);
1722	>
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 1827 | 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 1838 | 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 1847 | Line 1758 | public class LinkedBlockingDequeTest ext
1758		/**
1759		* drainTo empties full deque, unblocking a waiting put.
1760		*/
1761	<	public void testDrainToWithActivePut() {
1761	>	public void testDrainToWithActivePut() throws InterruptedException {
1762		final LinkedBlockingDeque q = populatedDeque(SIZE);
1763	<	Thread t = new Thread(new Runnable() {
1764	<	public void run() {
1765	<	try {
1766	<	q.put(new Integer(SIZE+1));
1856	<	} catch (InterruptedException ie) {
1857	<	threadUnexpectedException();
1858	<	}
1859	<	}
1860	<	});
1861	<	try {
1862	<	t.start();
1863	<	ArrayList l = new ArrayList();
1864	<	q.drainTo(l);
1865	<	assertTrue(l.size() >= SIZE);
1866	<	for (int i = 0; i < SIZE; ++i)
1867	<	assertEquals(l.get(i), new Integer(i));
1868	<	t.join();
1869	<	assertTrue(q.size() + l.size() >= SIZE);
1870	<	} catch (Exception e) {
1871	<	unexpectedException();
1872	<	}
1873	<	}
1763	>	Thread t = new Thread(new CheckedRunnable() {
1764	>	public void realRun() throws InterruptedException {
1765	>	q.put(new Integer(SIZE+1));
1766	>	}});
1767
1768	<	/**
1769	<	* drainTo(null, n) throws NPE
1770	<	*/
1771	<	public void testDrainToNullN() {
1772	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1773	<	try {
1774	<	q.drainTo(null, 0);
1775	<	shouldThrow();
1883	<	} catch (NullPointerException success) {
1884	<	}
1885	<	}
1886	<
1887	<	/**
1888	<	* drainTo(this, n) throws IAE
1889	<	*/
1890	<	public void testDrainToSelfN() {
1891	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1892	<	try {
1893	<	q.drainTo(q, 0);
1894	<	shouldThrow();
1895	<	} catch (IllegalArgumentException success) {
1896	<	}
1768	>	t.start();
1769	>	ArrayList l = new ArrayList();
1770	>	q.drainTo(l);
1771	>	assertTrue(l.size() >= SIZE);
1772	>	for (int i = 0; i < SIZE; ++i)
1773	>	assertEquals(l.get(i), new Integer(i));
1774	>	t.join();
1775	>	assertTrue(q.size() + l.size() >= SIZE);
1776		}
1777
1778		/**
1779	<	* 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 1906 | 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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