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Comparing jsr166/src/test/tck/LinkedBlockingDequeTest.java (file contents):
Revision 1.8 by jsr166, Sat Nov 21 02:33:20 2009 UTC vs.
Revision 1.65 by jsr166, Sun Oct 16 20:44:18 2016 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	>	main(suite(), args);
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
51	<	* Integers 0 ... n.
50	>	* Returns a new deque of given size containing consecutive
51	>	* Integers 0 ... n - 1.
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)));
59		assertFalse(q.isEmpty());
60		assertEquals(0, q.remainingCapacity());
61		assertEquals(n, q.size());
62	+	assertEquals((Integer) 0, q.peekFirst());
63	+	assertEquals((Integer) (n - 1), q.peekLast());
64		return q;
65		}
66
#	Line 54 | Line 84 | public class LinkedBlockingDequeTest ext
84		public void testSize() {
85		LinkedBlockingDeque q = populatedDeque(SIZE);
86		for (int i = 0; i < SIZE; ++i) {
87	<	assertEquals(SIZE-i, q.size());
87	>	assertEquals(SIZE - i, q.size());
88		q.removeFirst();
89		}
90		for (int i = 0; i < SIZE; ++i) {
#	Line 64 | Line 94 | public class LinkedBlockingDequeTest ext
94		}
95
96		/**
97	<	* offer(null) throws NPE
97	>	* offerFirst(null) throws NullPointerException
98		*/
99		public void testOfferFirstNull() {
100	+	LinkedBlockingDeque q = new LinkedBlockingDeque();
101		try {
71	–	LinkedBlockingDeque q = new LinkedBlockingDeque();
102		q.offerFirst(null);
103		shouldThrow();
104	<	} catch (NullPointerException success) {
105	<	}
104	>	} catch (NullPointerException success) {}
105	>	}
106	>
107	>	/**
108	>	* offerLast(null) throws NullPointerException
109	>	*/
110	>	public void testOfferLastNull() {
111	>	LinkedBlockingDeque q = new LinkedBlockingDeque();
112	>	try {
113	>	q.offerLast(null);
114	>	shouldThrow();
115	>	} catch (NullPointerException success) {}
116		}
117
118		/**
#	Line 94 | Line 134 | public class LinkedBlockingDequeTest ext
134		}
135
136		/**
137	<	*  pollFirst succeeds unless empty
137	>	* pollFirst succeeds unless empty
138		*/
139		public void testPollFirst() {
140		LinkedBlockingDeque q = populatedDeque(SIZE);
141		for (int i = 0; i < SIZE; ++i) {
142	<	assertEquals(i, ((Integer)q.pollFirst()).intValue());
142	>	assertEquals(i, q.pollFirst());
143		}
144		assertNull(q.pollFirst());
145		}
146
147		/**
148	<	*  pollLast succeeds unless empty
148	>	* pollLast succeeds unless empty
149		*/
150		public void testPollLast() {
151		LinkedBlockingDeque q = populatedDeque(SIZE);
152	<	for (int i = SIZE-1; i >= 0; --i) {
153	<	assertEquals(i, ((Integer)q.pollLast()).intValue());
152	>	for (int i = SIZE - 1; i >= 0; --i) {
153	>	assertEquals(i, q.pollLast());
154		}
155		assertNull(q.pollLast());
156		}
157
158		/**
159	<	*  peekFirst returns next element, or null if empty
159	>	* peekFirst returns next element, or null if empty
160		*/
161		public void testPeekFirst() {
162		LinkedBlockingDeque q = populatedDeque(SIZE);
163		for (int i = 0; i < SIZE; ++i) {
164	<	assertEquals(i, ((Integer)q.peekFirst()).intValue());
165	<	q.pollFirst();
164	>	assertEquals(i, q.peekFirst());
165	>	assertEquals(i, q.pollFirst());
166		assertTrue(q.peekFirst() == null ||
167	<	i != ((Integer)q.peekFirst()).intValue());
167	>	!q.peekFirst().equals(i));
168		}
169		assertNull(q.peekFirst());
170		}
171
172		/**
173	<	*  peek returns next element, or null if empty
173	>	* peek returns next element, or null if empty
174		*/
175		public void testPeek() {
176		LinkedBlockingDeque q = populatedDeque(SIZE);
177		for (int i = 0; i < SIZE; ++i) {
178	<	assertEquals(i, ((Integer)q.peek()).intValue());
179	<	q.pollFirst();
178	>	assertEquals(i, q.peek());
179	>	assertEquals(i, q.pollFirst());
180		assertTrue(q.peek() == null ||
181	<	i != ((Integer)q.peek()).intValue());
181	>	!q.peek().equals(i));
182		}
183		assertNull(q.peek());
184		}
185
186		/**
187	<	*  peekLast returns next element, or null if empty
187	>	* peekLast returns next element, or null if empty
188		*/
189		public void testPeekLast() {
190		LinkedBlockingDeque q = populatedDeque(SIZE);
191	<	for (int i = SIZE-1; i >= 0; --i) {
192	<	assertEquals(i, ((Integer)q.peekLast()).intValue());
193	<	q.pollLast();
191	>	for (int i = SIZE - 1; i >= 0; --i) {
192	>	assertEquals(i, q.peekLast());
193	>	assertEquals(i, q.pollLast());
194		assertTrue(q.peekLast() == null ||
195	<	i != ((Integer)q.peekLast()).intValue());
195	>	!q.peekLast().equals(i));
196		}
197		assertNull(q.peekLast());
198		}
199
200		/**
201	<	* getFirst returns next getFirst, or throws NSEE if empty
201	>	* getFirst() returns first element, or throws NSEE if empty
202		*/
203		public void testFirstElement() {
204		LinkedBlockingDeque q = populatedDeque(SIZE);
205		for (int i = 0; i < SIZE; ++i) {
206	<	assertEquals(i, ((Integer)q.getFirst()).intValue());
207	<	q.pollFirst();
206	>	assertEquals(i, q.getFirst());
207	>	assertEquals(i, q.pollFirst());
208		}
209		try {
210		q.getFirst();
211		shouldThrow();
212	<	}
213	<	catch (NoSuchElementException success) {}
212	>	} catch (NoSuchElementException success) {}
213	>	assertNull(q.peekFirst());
214		}
215
216		/**
217	<	*  getLast returns next element, or throws NSEE if empty
217	>	* getLast() returns last element, or throws NSEE if empty
218		*/
219		public void testLastElement() {
220		LinkedBlockingDeque q = populatedDeque(SIZE);
221	<	for (int i = SIZE-1; i >= 0; --i) {
222	<	assertEquals(i, ((Integer)q.getLast()).intValue());
223	<	q.pollLast();
221	>	for (int i = SIZE - 1; i >= 0; --i) {
222	>	assertEquals(i, q.getLast());
223	>	assertEquals(i, q.pollLast());
224		}
225		try {
226		q.getLast();
227		shouldThrow();
228	<	}
189	<	catch (NoSuchElementException success) {}
228	>	} catch (NoSuchElementException success) {}
229		assertNull(q.peekLast());
230		}
231
232		/**
233	<	*  removeFirst removes next element, or throws NSEE if empty
233	>	* removeFirst() removes first element, or throws NSEE if empty
234		*/
235		public void testRemoveFirst() {
236		LinkedBlockingDeque q = populatedDeque(SIZE);
237		for (int i = 0; i < SIZE; ++i) {
238	<	assertEquals(i, ((Integer)q.removeFirst()).intValue());
238	>	assertEquals(i, q.removeFirst());
239		}
240		try {
241		q.removeFirst();
242		shouldThrow();
243	<	} catch (NoSuchElementException success) {
243	>	} catch (NoSuchElementException success) {}
244	>	assertNull(q.peekFirst());
245	>	}
246	>
247	>	/**
248	>	* removeLast() removes last element, or throws NSEE if empty
249	>	*/
250	>	public void testRemoveLast() {
251	>	LinkedBlockingDeque q = populatedDeque(SIZE);
252	>	for (int i = SIZE - 1; i >= 0; --i) {
253	>	assertEquals(i, q.removeLast());
254		}
255	+	try {
256	+	q.removeLast();
257	+	shouldThrow();
258	+	} catch (NoSuchElementException success) {}
259	+	assertNull(q.peekLast());
260		}
261
262		/**
263	<	*  remove removes next element, or throws NSEE if empty
263	>	* remove removes next element, or throws NSEE if empty
264		*/
265		public void testRemove() {
266		LinkedBlockingDeque q = populatedDeque(SIZE);
267		for (int i = 0; i < SIZE; ++i) {
268	<	assertEquals(i, ((Integer)q.remove()).intValue());
268	>	assertEquals(i, q.remove());
269		}
270		try {
271		q.remove();
272		shouldThrow();
273	<	} catch (NoSuchElementException success) {
220	<	}
273	>	} catch (NoSuchElementException success) {}
274		}
275
276		/**
#	Line 225 | Line 278 | public class LinkedBlockingDequeTest ext
278		*/
279		public void testRemoveFirstOccurrence() {
280		LinkedBlockingDeque q = populatedDeque(SIZE);
281	<	for (int i = 1; i < SIZE; i+=2) {
281	>	for (int i = 1; i < SIZE; i += 2) {
282		assertTrue(q.removeFirstOccurrence(new Integer(i)));
283		}
284	<	for (int i = 0; i < SIZE; i+=2) {
284	>	for (int i = 0; i < SIZE; i += 2) {
285		assertTrue(q.removeFirstOccurrence(new Integer(i)));
286	<	assertFalse(q.removeFirstOccurrence(new Integer(i+1)));
286	>	assertFalse(q.removeFirstOccurrence(new Integer(i + 1)));
287		}
288		assertTrue(q.isEmpty());
289		}
#	Line 240 | Line 293 | public class LinkedBlockingDequeTest ext
293		*/
294		public void testRemoveLastOccurrence() {
295		LinkedBlockingDeque q = populatedDeque(SIZE);
296	<	for (int i = 1; i < SIZE; i+=2) {
296	>	for (int i = 1; i < SIZE; i += 2) {
297		assertTrue(q.removeLastOccurrence(new Integer(i)));
298		}
299	<	for (int i = 0; i < SIZE; i+=2) {
299	>	for (int i = 0; i < SIZE; i += 2) {
300		assertTrue(q.removeLastOccurrence(new Integer(i)));
301	<	assertFalse(q.removeLastOccurrence(new Integer(i+1)));
301	>	assertFalse(q.removeLastOccurrence(new Integer(i + 1)));
302		}
303		assertTrue(q.isEmpty());
304		}
#	Line 257 | Line 310 | public class LinkedBlockingDequeTest ext
310		LinkedBlockingDeque q = populatedDeque(3);
311		q.pollLast();
312		q.addFirst(four);
313	<	assertEquals(four,q.peekFirst());
313	>	assertSame(four, q.peekFirst());
314		}
315
316		/**
#	Line 267 | Line 320 | public class LinkedBlockingDequeTest ext
320		LinkedBlockingDeque q = populatedDeque(3);
321		q.pollLast();
322		q.addLast(four);
323	<	assertEquals(four,q.peekLast());
323	>	assertSame(four, q.peekLast());
324		}
325
273	–
326		/**
327		* A new deque has the indicated capacity, or Integer.MAX_VALUE if
328		* none given
#	Line 281 | Line 333 | public class LinkedBlockingDequeTest ext
333		}
334
335		/**
336	<	* Constructor throws IAE if  capacity argument nonpositive
336	>	* Constructor throws IllegalArgumentException if capacity argument nonpositive
337		*/
338		public void testConstructor2() {
339		try {
340	<	LinkedBlockingDeque q = new LinkedBlockingDeque(0);
340	>	new LinkedBlockingDeque(0);
341		shouldThrow();
342	<	}
291	<	catch (IllegalArgumentException success) {}
342	>	} catch (IllegalArgumentException success) {}
343		}
344
345		/**
346	<	* Initializing from null Collection throws NPE
346	>	* Initializing from null Collection throws NullPointerException
347		*/
348		public void testConstructor3() {
349		try {
350	<	LinkedBlockingDeque q = new LinkedBlockingDeque(null);
350	>	new LinkedBlockingDeque(null);
351		shouldThrow();
352	<	}
302	<	catch (NullPointerException success) {}
352	>	} catch (NullPointerException success) {}
353		}
354
355		/**
356	<	* Initializing from Collection of null elements throws NPE
356	>	* Initializing from Collection of null elements throws NullPointerException
357		*/
358		public void testConstructor4() {
359	+	Collection<Integer> elements = Arrays.asList(new Integer[SIZE]);
360		try {
361	<	Integer[] ints = new Integer[SIZE];
311	<	LinkedBlockingDeque q = new LinkedBlockingDeque(Arrays.asList(ints));
361	>	new LinkedBlockingDeque(elements);
362		shouldThrow();
363	<	}
314	<	catch (NullPointerException success) {}
363	>	} catch (NullPointerException success) {}
364		}
365
366		/**
367	<	* Initializing from Collection with some null elements throws NPE
367	>	* Initializing from Collection with some null elements throws
368	>	* NullPointerException
369		*/
370		public void testConstructor5() {
371	+	Integer[] ints = new Integer[SIZE];
372	+	for (int i = 0; i < SIZE - 1; ++i)
373	+	ints[i] = i;
374	+	Collection<Integer> elements = Arrays.asList(ints);
375		try {
376	<	Integer[] ints = new Integer[SIZE];
323	<	for (int i = 0; i < SIZE-1; ++i)
324	<	ints[i] = new Integer(i);
325	<	LinkedBlockingDeque q = new LinkedBlockingDeque(Arrays.asList(ints));
376	>	new LinkedBlockingDeque(elements);
377		shouldThrow();
378	<	}
328	<	catch (NullPointerException success) {}
378	>	} catch (NullPointerException success) {}
379		}
380
381		/**
382		* Deque contains all elements of collection used to initialize
383		*/
384		public void testConstructor6() {
385	<	try {
386	<	Integer[] ints = new Integer[SIZE];
387	<	for (int i = 0; i < SIZE; ++i)
388	<	ints[i] = new Integer(i);
389	<	LinkedBlockingDeque q = new LinkedBlockingDeque(Arrays.asList(ints));
390	<	for (int i = 0; i < SIZE; ++i)
341	<	assertEquals(ints[i], q.poll());
342	<	}
343	<	finally {}
385	>	Integer[] ints = new Integer[SIZE];
386	>	for (int i = 0; i < SIZE; ++i)
387	>	ints[i] = i;
388	>	LinkedBlockingDeque q = new LinkedBlockingDeque(Arrays.asList(ints));
389	>	for (int i = 0; i < SIZE; ++i)
390	>	assertEquals(ints[i], q.poll());
391		}
392
393		/**
#	Line 362 | Line 409 | public class LinkedBlockingDequeTest ext
409		* remainingCapacity decreases on add, increases on remove
410		*/
411		public void testRemainingCapacity() {
412	<	LinkedBlockingDeque q = populatedDeque(SIZE);
412	>	BlockingQueue q = populatedDeque(SIZE);
413		for (int i = 0; i < SIZE; ++i) {
414		assertEquals(i, q.remainingCapacity());
415	<	assertEquals(SIZE-i, q.size());
416	<	q.remove();
415	>	assertEquals(SIZE, q.size() + q.remainingCapacity());
416	>	assertEquals(i, q.remove());
417		}
418		for (int i = 0; i < SIZE; ++i) {
419	<	assertEquals(SIZE-i, q.remainingCapacity());
420	<	assertEquals(i, q.size());
421	<	q.add(new Integer(i));
419	>	assertEquals(SIZE - i, q.remainingCapacity());
420	>	assertEquals(SIZE, q.size() + q.remainingCapacity());
421	>	assertTrue(q.add(i));
422		}
423		}
424
425		/**
379	–	* offer(null) throws NPE
380	–	*/
381	–	public void testOfferNull() {
382	–	try {
383	–	LinkedBlockingDeque q = new LinkedBlockingDeque(1);
384	–	q.offer(null);
385	–	shouldThrow();
386	–	} catch (NullPointerException success) { }
387	–	}
388	–
389	–	/**
390	–	* add(null) throws NPE
391	–	*/
392	–	public void testAddNull() {
393	–	try {
394	–	LinkedBlockingDeque q = new LinkedBlockingDeque(1);
395	–	q.add(null);
396	–	shouldThrow();
397	–	} catch (NullPointerException success) { }
398	–	}
399	–
400	–	/**
426		* push(null) throws NPE
427		*/
428		public void testPushNull() {
429	+	LinkedBlockingDeque q = new LinkedBlockingDeque(1);
430		try {
405	–	LinkedBlockingDeque q = new LinkedBlockingDeque(1);
431		q.push(null);
432		shouldThrow();
433	<	} catch (NullPointerException success) { }
433	>	} catch (NullPointerException success) {}
434		}
435
436		/**
437		* push succeeds if not full; throws ISE if full
438		*/
439		public void testPush() {
440	+	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
441	+	for (int i = 0; i < SIZE; ++i) {
442	+	Integer x = new Integer(i);
443	+	q.push(x);
444	+	assertEquals(x, q.peek());
445	+	}
446	+	assertEquals(0, q.remainingCapacity());
447		try {
416	–	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
417	–	for (int i = 0; i < SIZE; ++i) {
418	–	Integer I = new Integer(i);
419	–	q.push(I);
420	–	assertEquals(I, q.peek());
421	–	}
422	–	assertEquals(0, q.remainingCapacity());
448		q.push(new Integer(SIZE));
449	<	} catch (IllegalStateException success) {
450	<	}
449	>	shouldThrow();
450	>	} catch (IllegalStateException success) {}
451		}
452
453		/**
#	Line 432 | Line 457 | public class LinkedBlockingDequeTest ext
457		LinkedBlockingDeque q = populatedDeque(3);
458		q.pollLast();
459		q.push(four);
460	<	assertEquals(four,q.peekFirst());
460	>	assertSame(four, q.peekFirst());
461		}
462
438	–
463		/**
464	<	*  pop removes next element, or throws NSEE if empty
464	>	* pop removes next element, or throws NSEE if empty
465		*/
466		public void testPop() {
467		LinkedBlockingDeque q = populatedDeque(SIZE);
468		for (int i = 0; i < SIZE; ++i) {
469	<	assertEquals(i, ((Integer)q.pop()).intValue());
469	>	assertEquals(i, q.pop());
470		}
471		try {
472		q.pop();
473		shouldThrow();
474	<	} catch (NoSuchElementException success) {
451	<	}
474	>	} catch (NoSuchElementException success) {}
475		}
476
454	–
477		/**
478		* Offer succeeds if not full; fails if full
479		*/
#	Line 465 | Line 487 | public class LinkedBlockingDequeTest ext
487		* add succeeds if not full; throws ISE if full
488		*/
489		public void testAdd() {
490	+	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
491	+	for (int i = 0; i < SIZE; ++i)
492	+	assertTrue(q.add(new Integer(i)));
493	+	assertEquals(0, q.remainingCapacity());
494		try {
469	–	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
470	–	for (int i = 0; i < SIZE; ++i) {
471	–	assertTrue(q.add(new Integer(i)));
472	–	}
473	–	assertEquals(0, q.remainingCapacity());
495		q.add(new Integer(SIZE));
475	–	} catch (IllegalStateException success) {
476	–	}
477	–	}
478	–
479	–	/**
480	–	* addAll(null) throws NPE
481	–	*/
482	–	public void testAddAll1() {
483	–	try {
484	–	LinkedBlockingDeque q = new LinkedBlockingDeque(1);
485	–	q.addAll(null);
496		shouldThrow();
497	<	}
488	<	catch (NullPointerException success) {}
497	>	} catch (IllegalStateException success) {}
498		}
499
500		/**
501		* addAll(this) throws IAE
502		*/
503		public void testAddAllSelf() {
504	+	LinkedBlockingDeque q = populatedDeque(SIZE);
505		try {
496	–	LinkedBlockingDeque q = populatedDeque(SIZE);
506		q.addAll(q);
507		shouldThrow();
508	<	}
500	<	catch (IllegalArgumentException success) {}
508	>	} catch (IllegalArgumentException success) {}
509		}
510
511		/**
504	–	* addAll of a collection with null elements throws NPE
505	–	*/
506	–	public void testAddAll2() {
507	–	try {
508	–	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
509	–	Integer[] ints = new Integer[SIZE];
510	–	q.addAll(Arrays.asList(ints));
511	–	shouldThrow();
512	–	}
513	–	catch (NullPointerException success) {}
514	–	}
515	–	/**
512		* addAll of a collection with any null elements throws NPE after
513		* possibly adding some elements
514		*/
515		public void testAddAll3() {
516	+	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
517	+	Integer[] ints = new Integer[SIZE];
518	+	for (int i = 0; i < SIZE - 1; ++i)
519	+	ints[i] = new Integer(i);
520	+	Collection<Integer> elements = Arrays.asList(ints);
521		try {
522	<	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
522	<	Integer[] ints = new Integer[SIZE];
523	<	for (int i = 0; i < SIZE-1; ++i)
524	<	ints[i] = new Integer(i);
525	<	q.addAll(Arrays.asList(ints));
522	>	q.addAll(elements);
523		shouldThrow();
524	<	}
528	<	catch (NullPointerException success) {}
524	>	} catch (NullPointerException success) {}
525		}
526	+
527		/**
528	<	* addAll throws ISE if not enough room
528	>	* addAll throws IllegalStateException if not enough room
529		*/
530		public void testAddAll4() {
531	+	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE - 1);
532	+	Integer[] ints = new Integer[SIZE];
533	+	for (int i = 0; i < SIZE; ++i)
534	+	ints[i] = new Integer(i);
535	+	Collection<Integer> elements = Arrays.asList(ints);
536		try {
537	<	LinkedBlockingDeque q = new LinkedBlockingDeque(1);
536	<	Integer[] ints = new Integer[SIZE];
537	<	for (int i = 0; i < SIZE; ++i)
538	<	ints[i] = new Integer(i);
539	<	q.addAll(Arrays.asList(ints));
537	>	q.addAll(elements);
538		shouldThrow();
539	<	}
542	<	catch (IllegalStateException success) {}
539	>	} catch (IllegalStateException success) {}
540		}
541	+
542		/**
543		* Deque contains all elements, in traversal order, of successful addAll
544		*/
545		public void testAddAll5() {
546	<	try {
547	<	Integer[] empty = new Integer[0];
548	<	Integer[] ints = new Integer[SIZE];
549	<	for (int i = 0; i < SIZE; ++i)
550	<	ints[i] = new Integer(i);
551	<	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
552	<	assertFalse(q.addAll(Arrays.asList(empty)));
553	<	assertTrue(q.addAll(Arrays.asList(ints)));
554	<	for (int i = 0; i < SIZE; ++i)
557	<	assertEquals(ints[i], q.poll());
558	<	}
559	<	finally {}
546	>	Integer[] empty = new Integer[0];
547	>	Integer[] ints = new Integer[SIZE];
548	>	for (int i = 0; i < SIZE; ++i)
549	>	ints[i] = new Integer(i);
550	>	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
551	>	assertFalse(q.addAll(Arrays.asList(empty)));
552	>	assertTrue(q.addAll(Arrays.asList(ints)));
553	>	for (int i = 0; i < SIZE; ++i)
554	>	assertEquals(ints[i], q.poll());
555		}
556
562	–
563	–	/**
564	–	* put(null) throws NPE
565	–	*/
566	–	public void testPutNull() {
567	–	try {
568	–	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
569	–	q.put(null);
570	–	shouldThrow();
571	–	}
572	–	catch (NullPointerException success) {
573	–	}
574	–	catch (InterruptedException ie) {
575	–	unexpectedException();
576	–	}
577	–	}
578	–
557		/**
558		* all elements successfully put are contained
559		*/
560	<	public void testPut() {
561	<	try {
562	<	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
563	<	for (int i = 0; i < SIZE; ++i) {
564	<	Integer I = new Integer(i);
565	<	q.put(I);
588	<	assertTrue(q.contains(I));
589	<	}
590	<	assertEquals(0, q.remainingCapacity());
591	<	}
592	<	catch (InterruptedException ie) {
593	<	unexpectedException();
560	>	public void testPut() throws InterruptedException {
561	>	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
562	>	for (int i = 0; i < SIZE; ++i) {
563	>	Integer x = new Integer(i);
564	>	q.put(x);
565	>	assertTrue(q.contains(x));
566		}
567	+	assertEquals(0, q.remainingCapacity());
568		}
569
570		/**
571		* put blocks interruptibly if full
572		*/
573	<	public void testBlockingPut() {
574	<	Thread t = new Thread(new Runnable() {
575	<	public void run() {
576	<	int added = 0;
577	<	try {
578	<	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
579	<	for (int i = 0; i < SIZE; ++i) {
580	<	q.put(new Integer(i));
581	<	++added;
582	<	}
583	<	q.put(new Integer(SIZE));
584	<	threadShouldThrow();
585	<	} catch (InterruptedException ie) {
586	<	threadAssertEquals(added, SIZE);
587	<	}
588	<	}});
589	<	t.start();
590	<	try {
591	<	Thread.sleep(SHORT_DELAY_MS);
592	<	t.interrupt();
593	<	t.join();
594	<	}
595	<	catch (InterruptedException ie) {
596	<	unexpectedException();
597	<	}
573	>	public void testBlockingPut() throws InterruptedException {
574	>	final LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
575	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
576	>	Thread t = newStartedThread(new CheckedRunnable() {
577	>	public void realRun() throws InterruptedException {
578	>	for (int i = 0; i < SIZE; ++i)
579	>	q.put(i);
580	>	assertEquals(SIZE, q.size());
581	>	assertEquals(0, q.remainingCapacity());
582	>
583	>	Thread.currentThread().interrupt();
584	>	try {
585	>	q.put(99);
586	>	shouldThrow();
587	>	} catch (InterruptedException success) {}
588	>	assertFalse(Thread.interrupted());
589	>
590	>	pleaseInterrupt.countDown();
591	>	try {
592	>	q.put(99);
593	>	shouldThrow();
594	>	} catch (InterruptedException success) {}
595	>	assertFalse(Thread.interrupted());
596	>	}});
597	>
598	>	await(pleaseInterrupt);
599	>	assertThreadStaysAlive(t);
600	>	t.interrupt();
601	>	awaitTermination(t);
602	>	assertEquals(SIZE, q.size());
603	>	assertEquals(0, q.remainingCapacity());
604		}
605
606		/**
607	<	* put blocks waiting for take when full
607	>	* put blocks interruptibly waiting for take when full
608		*/
609	<	public void testPutWithTake() {
610	<	final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
611	<	Thread t = new Thread(new Runnable() {
612	<	public void run() {
613	<	int added = 0;
614	<	try {
615	<	q.put(new Object());
616	<	++added;
617	<	q.put(new Object());
618	<	++added;
619	<	q.put(new Object());
620	<	++added;
621	<	q.put(new Object());
622	<	++added;
623	<	threadShouldThrow();
624	<	} catch (InterruptedException e) {
625	<	threadAssertTrue(added >= 2);
626	<	}
627	<	}
628	<	});
629	<	try {
630	<	t.start();
631	<	Thread.sleep(SHORT_DELAY_MS);
632	<	q.take();
633	<	t.interrupt();
634	<	t.join();
635	<	} catch (Exception e) {
636	<	unexpectedException();
637	<	}
609	>	public void testPutWithTake() throws InterruptedException {
610	>	final int capacity = 2;
611	>	final LinkedBlockingDeque q = new LinkedBlockingDeque(capacity);
612	>	final CountDownLatch pleaseTake = new CountDownLatch(1);
613	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
614	>	Thread t = newStartedThread(new CheckedRunnable() {
615	>	public void realRun() throws InterruptedException {
616	>	for (int i = 0; i < capacity; i++)
617	>	q.put(i);
618	>	pleaseTake.countDown();
619	>	q.put(86);
620	>
621	>	pleaseInterrupt.countDown();
622	>	try {
623	>	q.put(99);
624	>	shouldThrow();
625	>	} catch (InterruptedException success) {}
626	>	assertFalse(Thread.interrupted());
627	>	}});
628	>
629	>	await(pleaseTake);
630	>	assertEquals(0, q.remainingCapacity());
631	>	assertEquals(0, q.take());
632	>
633	>	await(pleaseInterrupt);
634	>	assertThreadStaysAlive(t);
635	>	t.interrupt();
636	>	awaitTermination(t);
637	>	assertEquals(0, q.remainingCapacity());
638		}
639
640		/**
641		* timed offer times out if full and elements not taken
642		*/
643	<	public void testTimedOffer() {
643	>	public void testTimedOffer() throws InterruptedException {
644		final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
645	<	Thread t = new Thread(new Runnable() {
646	<	public void run() {
647	<	try {
648	<	q.put(new Object());
649	<	q.put(new Object());
650	<	threadAssertFalse(q.offer(new Object(), SHORT_DELAY_MS, MILLISECONDS));
651	<	q.offer(new Object(), LONG_DELAY_MS, MILLISECONDS);
652	<	threadShouldThrow();
653	<	} catch (InterruptedException success) {}
654	<	}
655	<	});
656	<
657	<	try {
658	<	t.start();
659	<	Thread.sleep(SMALL_DELAY_MS);
660	<	t.interrupt();
661	<	t.join();
662	<	} catch (Exception e) {
663	<	unexpectedException();
685	<	}
645	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
646	>	Thread t = newStartedThread(new CheckedRunnable() {
647	>	public void realRun() throws InterruptedException {
648	>	q.put(new Object());
649	>	q.put(new Object());
650	>	long startTime = System.nanoTime();
651	>	assertFalse(q.offer(new Object(), timeoutMillis(), MILLISECONDS));
652	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
653	>	pleaseInterrupt.countDown();
654	>	try {
655	>	q.offer(new Object(), 2 * LONG_DELAY_MS, MILLISECONDS);
656	>	shouldThrow();
657	>	} catch (InterruptedException success) {}
658	>	}});
659	>
660	>	await(pleaseInterrupt);
661	>	assertThreadStaysAlive(t);
662	>	t.interrupt();
663	>	awaitTermination(t);
664		}
665
666		/**
667		* take retrieves elements in FIFO order
668		*/
669	<	public void testTake() {
670	<	try {
671	<	LinkedBlockingDeque q = populatedDeque(SIZE);
672	<	for (int i = 0; i < SIZE; ++i) {
695	<	assertEquals(i, ((Integer)q.take()).intValue());
696	<	}
697	<	} catch (InterruptedException e) {
698	<	unexpectedException();
669	>	public void testTake() throws InterruptedException {
670	>	LinkedBlockingDeque q = populatedDeque(SIZE);
671	>	for (int i = 0; i < SIZE; ++i) {
672	>	assertEquals(i, q.take());
673		}
674		}
675
676		/**
677	<	* take blocks interruptibly when empty
677	>	* take removes existing elements until empty, then blocks interruptibly
678		*/
679	<	public void testTakeFromEmpty() {
680	<	final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
681	<	Thread t = new Thread(new Runnable() {
682	<	public void run() {
683	<	try {
684	<	q.take();
685	<	threadShouldThrow();
712	<	} catch (InterruptedException success) { }
679	>	public void testBlockingTake() throws InterruptedException {
680	>	final LinkedBlockingDeque q = populatedDeque(SIZE);
681	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
682	>	Thread t = newStartedThread(new CheckedRunnable() {
683	>	public void realRun() throws InterruptedException {
684	>	for (int i = 0; i < SIZE; ++i) {
685	>	assertEquals(i, q.take());
686		}
714	–	});
715	–	try {
716	–	t.start();
717	–	Thread.sleep(SHORT_DELAY_MS);
718	–	t.interrupt();
719	–	t.join();
720	–	} catch (Exception e) {
721	–	unexpectedException();
722	–	}
723	–	}
687
688	<	/**
689	<	* Take removes existing elements until empty, then blocks interruptibly
690	<	*/
691	<	public void testBlockingTake() {
692	<	Thread t = new Thread(new Runnable() {
693	<	public void run() {
731	<	try {
732	<	LinkedBlockingDeque q = populatedDeque(SIZE);
733	<	for (int i = 0; i < SIZE; ++i) {
734	<	assertEquals(i, ((Integer)q.take()).intValue());
735	<	}
736	<	q.take();
737	<	threadShouldThrow();
738	<	} catch (InterruptedException success) {
739	<	}
740	<	}});
741	<	t.start();
742	<	try {
743	<	Thread.sleep(SHORT_DELAY_MS);
744	<	t.interrupt();
745	<	t.join();
746	<	}
747	<	catch (InterruptedException ie) {
748	<	unexpectedException();
749	<	}
750	<	}
688	>	Thread.currentThread().interrupt();
689	>	try {
690	>	q.take();
691	>	shouldThrow();
692	>	} catch (InterruptedException success) {}
693	>	assertFalse(Thread.interrupted());
694
695	+	pleaseInterrupt.countDown();
696	+	try {
697	+	q.take();
698	+	shouldThrow();
699	+	} catch (InterruptedException success) {}
700	+	assertFalse(Thread.interrupted());
701	+	}});
702	+
703	+	await(pleaseInterrupt);
704	+	assertThreadStaysAlive(t);
705	+	t.interrupt();
706	+	awaitTermination(t);
707	+	}
708
709		/**
710		* poll succeeds unless empty
#	Line 756 | Line 712 | public class LinkedBlockingDequeTest ext
712		public void testPoll() {
713		LinkedBlockingDeque q = populatedDeque(SIZE);
714		for (int i = 0; i < SIZE; ++i) {
715	<	assertEquals(i, ((Integer)q.poll()).intValue());
715	>	assertEquals(i, q.poll());
716		}
717		assertNull(q.poll());
718		}
#	Line 764 | Line 720 | public class LinkedBlockingDequeTest ext
720		/**
721		* timed poll with zero timeout succeeds when non-empty, else times out
722		*/
723	<	public void testTimedPoll0() {
724	<	try {
725	<	LinkedBlockingDeque q = populatedDeque(SIZE);
726	<	for (int i = 0; i < SIZE; ++i) {
771	<	assertEquals(i, ((Integer)q.poll(0, MILLISECONDS)).intValue());
772	<	}
773	<	assertNull(q.poll(0, MILLISECONDS));
774	<	} catch (InterruptedException e) {
775	<	unexpectedException();
723	>	public void testTimedPoll0() throws InterruptedException {
724	>	LinkedBlockingDeque q = populatedDeque(SIZE);
725	>	for (int i = 0; i < SIZE; ++i) {
726	>	assertEquals(i, q.poll(0, MILLISECONDS));
727		}
728	+	assertNull(q.poll(0, MILLISECONDS));
729		}
730
731		/**
732		* timed poll with nonzero timeout succeeds when non-empty, else times out
733		*/
734	<	public void testTimedPoll() {
735	<	try {
736	<	LinkedBlockingDeque q = populatedDeque(SIZE);
737	<	for (int i = 0; i < SIZE; ++i) {
738	<	assertEquals(i, ((Integer)q.poll(SHORT_DELAY_MS, MILLISECONDS)).intValue());
739	<	}
740	<	assertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS));
741	<	} catch (InterruptedException e) {
742	<	unexpectedException();
743	<	}
734	>	public void testTimedPoll() throws InterruptedException {
735	>	LinkedBlockingDeque q = populatedDeque(SIZE);
736	>	for (int i = 0; i < SIZE; ++i) {
737	>	long startTime = System.nanoTime();
738	>	assertEquals(i, q.poll(LONG_DELAY_MS, MILLISECONDS));
739	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
740	>	}
741	>	long startTime = System.nanoTime();
742	>	assertNull(q.poll(timeoutMillis(), MILLISECONDS));
743	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
744	>	checkEmpty(q);
745		}
746
747		/**
748		* Interrupted timed poll throws InterruptedException instead of
749		* returning timeout status
750		*/
751	<	public void testInterruptedTimedPoll() {
752	<	Thread t = new Thread(new Runnable() {
753	<	public void run() {
754	<	try {
755	<	LinkedBlockingDeque q = populatedDeque(SIZE);
756	<	for (int i = 0; i < SIZE; ++i) {
757	<	threadAssertEquals(i, ((Integer)q.poll(SHORT_DELAY_MS, MILLISECONDS)).intValue());
758	<	}
806	<	threadAssertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS));
807	<	} catch (InterruptedException success) {
808	<	}
809	<	}});
810	<	t.start();
811	<	try {
812	<	Thread.sleep(SHORT_DELAY_MS);
813	<	t.interrupt();
814	<	t.join();
815	<	}
816	<	catch (InterruptedException ie) {
817	<	unexpectedException();
818	<	}
819	<	}
820	<
821	<	/**
822	<	*  timed poll before a delayed offer fails; after offer succeeds;
823	<	*  on interruption throws
824	<	*/
825	<	public void testTimedPollWithOffer() {
826	<	final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
827	<	Thread t = new Thread(new Runnable() {
828	<	public void run() {
829	<	try {
830	<	threadAssertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS));
831	<	q.poll(LONG_DELAY_MS, MILLISECONDS);
832	<	q.poll(LONG_DELAY_MS, MILLISECONDS);
833	<	threadShouldThrow();
834	<	} catch (InterruptedException success) { }
751	>	public void testInterruptedTimedPoll() throws InterruptedException {
752	>	final BlockingQueue<Integer> q = populatedDeque(SIZE);
753	>	final CountDownLatch aboutToWait = new CountDownLatch(1);
754	>	Thread t = newStartedThread(new CheckedRunnable() {
755	>	public void realRun() throws InterruptedException {
756	>	long startTime = System.nanoTime();
757	>	for (int i = 0; i < SIZE; ++i) {
758	>	assertEquals(i, (int) q.poll(LONG_DELAY_MS, MILLISECONDS));
759		}
760	<	});
761	<	try {
762	<	t.start();
763	<	Thread.sleep(SMALL_DELAY_MS);
764	<	assertTrue(q.offer(zero, SHORT_DELAY_MS, MILLISECONDS));
765	<	t.interrupt();
766	<	t.join();
767	<	} catch (Exception e) {
768	<	unexpectedException();
769	<	}
760	>	aboutToWait.countDown();
761	>	try {
762	>	q.poll(LONG_DELAY_MS, MILLISECONDS);
763	>	shouldThrow();
764	>	} catch (InterruptedException success) {
765	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
766	>	}
767	>	}});
768	>
769	>	aboutToWait.await();
770	>	waitForThreadToEnterWaitState(t);
771	>	t.interrupt();
772	>	awaitTermination(t);
773	>	checkEmpty(q);
774		}
775
848	–
776		/**
777		* putFirst(null) throws NPE
778		*/
779	<	public void testPutFirstNull() {
779	>	public void testPutFirstNull() throws InterruptedException {
780	>	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
781		try {
854	–	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
782		q.putFirst(null);
783		shouldThrow();
784	<	}
785	<	catch (NullPointerException success) {
859	<	}
860	<	catch (InterruptedException ie) {
861	<	unexpectedException();
862	<	}
863	<	}
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);
874	<	assertTrue(q.contains(I));
875	<	}
876	<	assertEquals(0, q.remainingCapacity());
877	<	}
878	<	catch (InterruptedException ie) {
879	<	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, MILLISECONDS));
881	<	q.offerFirst(new Object(), LONG_DELAY_MS, MILLISECONDS);
882	<	threadShouldThrow();
883	<	} catch (InterruptedException success) {}
884	<	}
885	<	});
886	<
887	<	try {
888	<	t.start();
889	<	Thread.sleep(SMALL_DELAY_MS);
890	<	t.interrupt();
891	<	t.join();
892	<	} catch (Exception e) {
893	<	unexpectedException();
971	<	}
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		/**
897		* take retrieves elements in FIFO order
898		*/
899	<	public void testTakeFirst() {
900	<	try {
901	<	LinkedBlockingDeque q = populatedDeque(SIZE);
902	<	for (int i = 0; i < SIZE; ++i) {
981	<	assertEquals(i, ((Integer)q.takeFirst()).intValue());
982	<	}
983	<	} catch (InterruptedException e) {
984	<	unexpectedException();
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	<	* takeFirst blocks interruptibly when empty
907	>	* takeFirst() blocks interruptibly when empty
908		*/
909	<	public void testTakeFirstFromEmpty() {
910	<	final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
911	<	Thread t = new Thread(new Runnable() {
912	<	public void run() {
913	<	try {
914	<	q.takeFirst();
915	<	threadShouldThrow();
916	<	} catch (InterruptedException success) { }
917	<	}
918	<	});
919	<	try {
920	<	t.start();
921	<	Thread.sleep(SHORT_DELAY_MS);
922	<	t.interrupt();
923	<	t.join();
924	<	} catch (Exception e) {
925	<	unexpectedException();
1008	<	}
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 removes existing elements until empty, then blocks interruptibly
930	<	*/
931	<	public void testBlockingTakeFirst() {
932	<	Thread t = new Thread(new Runnable() {
933	<	public void run() {
934	<	try {
935	<	LinkedBlockingDeque q = populatedDeque(SIZE);
936	<	for (int i = 0; i < SIZE; ++i) {
937	<	assertEquals(i, ((Integer)q.takeFirst()).intValue());
938	<	}
939	<	q.takeFirst();
940	<	threadShouldThrow();
941	<	} catch (InterruptedException success) {
942	<	}
943	<	}});
944	<	t.start();
945	<	try {
946	<	Thread.sleep(SHORT_DELAY_MS);
947	<	t.interrupt();
948	<	t.join();
949	<	}
950	<	catch (InterruptedException ie) {
951	<	unexpectedException();
952	<	}
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	+	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) {
1046	<	assertEquals(i, ((Integer)q.pollFirst(0, MILLISECONDS)).intValue());
1047	<	}
1048	<	assertNull(q.pollFirst(0, MILLISECONDS));
1049	<	} catch (InterruptedException e) {
1050	<	unexpectedException();
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, MILLISECONDS)).intValue());
1040	<	}
1041	<	assertNull(q.pollFirst(SHORT_DELAY_MS, 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, MILLISECONDS)).intValue());
1059	<	}
1060	<	threadAssertNull(q.pollFirst(SHORT_DELAY_MS, 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 LinkedBlockingDeque q = populatedDeque(SIZE);
1054	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
1055	>	Thread t = newStartedThread(new CheckedRunnable() {
1056	>	public void realRun() throws InterruptedException {
1057	>	long startTime = System.nanoTime();
1058	>	for (int i = 0; i < SIZE; ++i) {
1059	>	assertEquals(i, q.pollFirst(LONG_DELAY_MS, MILLISECONDS));
1060	>	}
1061	>
1062	>	Thread.currentThread().interrupt();
1063	>	try {
1064	>	q.pollFirst(LONG_DELAY_MS, MILLISECONDS);
1065	>	shouldThrow();
1066	>	} catch (InterruptedException success) {}
1067	>	assertFalse(Thread.interrupted());
1068	>
1069	>	pleaseInterrupt.countDown();
1070	>	try {
1071	>	q.pollFirst(LONG_DELAY_MS, MILLISECONDS);
1072	>	shouldThrow();
1073	>	} catch (InterruptedException success) {}
1074	>	assertFalse(Thread.interrupted());
1075	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1076	>	}});
1077	>
1078	>	await(pleaseInterrupt);
1079	>	assertThreadStaysAlive(t);
1080	>	t.interrupt();
1081	>	awaitTermination(t);
1082		}
1083
1084		/**
1085	<	*  timed pollFirst before a delayed offerFirst fails; after offerFirst succeeds;
1086	<	*  on interruption throws
1085	>	* timed pollFirst before a delayed offerFirst fails; after offerFirst succeeds;
1086	>	* on interruption throws
1087		*/
1088	<	public void testTimedPollFirstWithOfferFirst() {
1088	>	public void testTimedPollFirstWithOfferFirst() throws InterruptedException {
1089		final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
1090	<	Thread t = new Thread(new Runnable() {
1091	<	public void run() {
1092	<	try {
1093	<	threadAssertNull(q.pollFirst(SHORT_DELAY_MS, MILLISECONDS));
1094	<	q.pollFirst(LONG_DELAY_MS, MILLISECONDS);
1095	<	q.pollFirst(LONG_DELAY_MS, MILLISECONDS);
1096	<	threadShouldThrow();
1097	<	} catch (InterruptedException success) { }
1098	<	}
1099	<	});
1100	<	try {
1101	<	t.start();
1102	<	Thread.sleep(SMALL_DELAY_MS);
1103	<	assertTrue(q.offerFirst(zero, SHORT_DELAY_MS, MILLISECONDS));
1104	<	t.interrupt();
1105	<	t.join();
1106	<	} catch (Exception e) {
1107	<	unexpectedException();
1108	<	}
1090	>	final CheckedBarrier barrier = new CheckedBarrier(2);
1091	>	Thread t = newStartedThread(new CheckedRunnable() {
1092	>	public void realRun() throws InterruptedException {
1093	>	long startTime = System.nanoTime();
1094	>	assertNull(q.pollFirst(timeoutMillis(), MILLISECONDS));
1095	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
1096	>
1097	>	barrier.await();
1098	>
1099	>	assertSame(zero, q.pollFirst(LONG_DELAY_MS, MILLISECONDS));
1100	>
1101	>	Thread.currentThread().interrupt();
1102	>	try {
1103	>	q.pollFirst(LONG_DELAY_MS, MILLISECONDS);
1104	>	shouldThrow();
1105	>	} catch (InterruptedException success) {}
1106	>
1107	>	barrier.await();
1108	>	try {
1109	>	q.pollFirst(LONG_DELAY_MS, MILLISECONDS);
1110	>	shouldThrow();
1111	>	} catch (InterruptedException success) {}
1112	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1113	>	}});
1114	>
1115	>	barrier.await();
1116	>	long startTime = System.nanoTime();
1117	>	assertTrue(q.offerFirst(zero, LONG_DELAY_MS, MILLISECONDS));
1118	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1119	>	barrier.await();
1120	>	assertThreadStaysAlive(t);
1121	>	t.interrupt();
1122	>	awaitTermination(t);
1123		}
1124
1125		/**
1126		* putLast(null) throws NPE
1127		*/
1128	<	public void testPutLastNull() {
1128	>	public void testPutLastNull() throws InterruptedException {
1129	>	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
1130		try {
1128	–	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
1131		q.putLast(null);
1132		shouldThrow();
1133	<	}
1134	<	catch (NullPointerException success) {
1133	<	}
1134	<	catch (InterruptedException ie) {
1135	<	unexpectedException();
1136	<	}
1137	<	}
1133	>	} catch (NullPointerException success) {}
1134	>	}
1135
1136		/**
1137		* all elements successfully putLast are contained
1138		*/
1139	<	public void testPutLast() {
1140	<	try {
1141	<	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
1142	<	for (int i = 0; i < SIZE; ++i) {
1143	<	Integer I = new Integer(i);
1144	<	q.putLast(I);
1148	<	assertTrue(q.contains(I));
1149	<	}
1150	<	assertEquals(0, q.remainingCapacity());
1151	<	}
1152	<	catch (InterruptedException ie) {
1153	<	unexpectedException();
1139	>	public void testPutLast() throws InterruptedException {
1140	>	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
1141	>	for (int i = 0; i < SIZE; ++i) {
1142	>	Integer x = new Integer(i);
1143	>	q.putLast(x);
1144	>	assertTrue(q.contains(x));
1145		}
1146	+	assertEquals(0, q.remainingCapacity());
1147		}
1148
1149		/**
1150		* putLast blocks interruptibly if full
1151		*/
1152	<	public void testBlockingPutLast() {
1153	<	Thread t = new Thread(new Runnable() {
1154	<	public void run() {
1155	<	int added = 0;
1156	<	try {
1157	<	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
1158	<	for (int i = 0; i < SIZE; ++i) {
1159	<	q.putLast(new Integer(i));
1160	<	++added;
1161	<	}
1162	<	q.putLast(new Integer(SIZE));
1163	<	threadShouldThrow();
1164	<	} catch (InterruptedException ie) {
1165	<	threadAssertEquals(added, SIZE);
1166	<	}
1167	<	}});
1168	<	t.start();
1169	<	try {
1170	<	Thread.sleep(SHORT_DELAY_MS);
1171	<	t.interrupt();
1172	<	t.join();
1173	<	}
1174	<	catch (InterruptedException ie) {
1175	<	unexpectedException();
1176	<	}
1152	>	public void testBlockingPutLast() throws InterruptedException {
1153	>	final LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
1154	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
1155	>	Thread t = newStartedThread(new CheckedRunnable() {
1156	>	public void realRun() throws InterruptedException {
1157	>	for (int i = 0; i < SIZE; ++i)
1158	>	q.putLast(i);
1159	>	assertEquals(SIZE, q.size());
1160	>	assertEquals(0, q.remainingCapacity());
1161	>
1162	>	Thread.currentThread().interrupt();
1163	>	try {
1164	>	q.putLast(99);
1165	>	shouldThrow();
1166	>	} catch (InterruptedException success) {}
1167	>	assertFalse(Thread.interrupted());
1168	>
1169	>	pleaseInterrupt.countDown();
1170	>	try {
1171	>	q.putLast(99);
1172	>	shouldThrow();
1173	>	} catch (InterruptedException success) {}
1174	>	assertFalse(Thread.interrupted());
1175	>	}});
1176	>
1177	>	await(pleaseInterrupt);
1178	>	assertThreadStaysAlive(t);
1179	>	t.interrupt();
1180	>	awaitTermination(t);
1181	>	assertEquals(SIZE, q.size());
1182	>	assertEquals(0, q.remainingCapacity());
1183		}
1184
1185		/**
1186	<	* putLast blocks waiting for take when full
1186	>	* putLast blocks interruptibly waiting for take when full
1187		*/
1188	<	public void testPutLastWithTake() {
1189	<	final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
1190	<	Thread t = new Thread(new Runnable() {
1191	<	public void run() {
1192	<	int added = 0;
1193	<	try {
1194	<	q.putLast(new Object());
1195	<	++added;
1196	<	q.putLast(new Object());
1197	<	++added;
1198	<	q.putLast(new Object());
1199	<	++added;
1200	<	q.putLast(new Object());
1201	<	++added;
1202	<	threadShouldThrow();
1203	<	} catch (InterruptedException e) {
1204	<	threadAssertTrue(added >= 2);
1205	<	}
1206	<	}
1207	<	});
1208	<	try {
1209	<	t.start();
1210	<	Thread.sleep(SHORT_DELAY_MS);
1211	<	q.take();
1212	<	t.interrupt();
1213	<	t.join();
1214	<	} catch (Exception e) {
1215	<	unexpectedException();
1216	<	}
1188	>	public void testPutLastWithTake() throws InterruptedException {
1189	>	final int capacity = 2;
1190	>	final LinkedBlockingDeque q = new LinkedBlockingDeque(capacity);
1191	>	final CountDownLatch pleaseTake = new CountDownLatch(1);
1192	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
1193	>	Thread t = newStartedThread(new CheckedRunnable() {
1194	>	public void realRun() throws InterruptedException {
1195	>	for (int i = 0; i < capacity; i++)
1196	>	q.putLast(i);
1197	>	pleaseTake.countDown();
1198	>	q.putLast(86);
1199	>
1200	>	pleaseInterrupt.countDown();
1201	>	try {
1202	>	q.putLast(99);
1203	>	shouldThrow();
1204	>	} catch (InterruptedException success) {}
1205	>	assertFalse(Thread.interrupted());
1206	>	}});
1207	>
1208	>	await(pleaseTake);
1209	>	assertEquals(0, q.remainingCapacity());
1210	>	assertEquals(0, q.take());
1211	>
1212	>	await(pleaseInterrupt);
1213	>	assertThreadStaysAlive(t);
1214	>	t.interrupt();
1215	>	awaitTermination(t);
1216	>	assertEquals(0, q.remainingCapacity());
1217		}
1218
1219		/**
1220		* timed offerLast times out if full and elements not taken
1221		*/
1222	<	public void testTimedOfferLast() {
1222	>	public void testTimedOfferLast() throws InterruptedException {
1223		final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
1224	<	Thread t = new Thread(new Runnable() {
1225	<	public void run() {
1226	<	try {
1227	<	q.putLast(new Object());
1228	<	q.putLast(new Object());
1229	<	threadAssertFalse(q.offerLast(new Object(), SHORT_DELAY_MS, MILLISECONDS));
1230	<	q.offerLast(new Object(), LONG_DELAY_MS, MILLISECONDS);
1231	<	threadShouldThrow();
1232	<	} catch (InterruptedException success) {}
1233	<	}
1234	<	});
1235	<
1236	<	try {
1237	<	t.start();
1238	<	Thread.sleep(SMALL_DELAY_MS);
1239	<	t.interrupt();
1240	<	t.join();
1241	<	} catch (Exception e) {
1242	<	unexpectedException();
1245	<	}
1224	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
1225	>	Thread t = newStartedThread(new CheckedRunnable() {
1226	>	public void realRun() throws InterruptedException {
1227	>	q.putLast(new Object());
1228	>	q.putLast(new Object());
1229	>	long startTime = System.nanoTime();
1230	>	assertFalse(q.offerLast(new Object(), timeoutMillis(), MILLISECONDS));
1231	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
1232	>	pleaseInterrupt.countDown();
1233	>	try {
1234	>	q.offerLast(new Object(), 2 * LONG_DELAY_MS, MILLISECONDS);
1235	>	shouldThrow();
1236	>	} catch (InterruptedException success) {}
1237	>	}});
1238	>
1239	>	await(pleaseInterrupt);
1240	>	assertThreadStaysAlive(t);
1241	>	t.interrupt();
1242	>	awaitTermination(t);
1243		}
1244
1245		/**
1246		* takeLast retrieves elements in FIFO order
1247		*/
1248	<	public void testTakeLast() {
1249	<	try {
1250	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1251	<	for (int i = 0; i < SIZE; ++i) {
1255	<	assertEquals(SIZE-i-1, ((Integer)q.takeLast()).intValue());
1256	<	}
1257	<	} catch (InterruptedException e) {
1258	<	unexpectedException();
1248	>	public void testTakeLast() throws InterruptedException {
1249	>	LinkedBlockingDeque q = populatedDeque(SIZE);
1250	>	for (int i = 0; i < SIZE; ++i) {
1251	>	assertEquals(SIZE - i - 1, q.takeLast());
1252		}
1253		}
1254
1255		/**
1256	<	* takeLast blocks interruptibly when empty
1256	>	* takeLast removes existing elements until empty, then blocks interruptibly
1257		*/
1258	<	public void testTakeLastFromEmpty() {
1259	<	final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
1260	<	Thread t = new Thread(new Runnable() {
1261	<	public void run() {
1262	<	try {
1263	<	q.takeLast();
1264	<	threadShouldThrow();
1272	<	} catch (InterruptedException success) { }
1258	>	public void testBlockingTakeLast() throws InterruptedException {
1259	>	final LinkedBlockingDeque q = populatedDeque(SIZE);
1260	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
1261	>	Thread t = newStartedThread(new CheckedRunnable() {
1262	>	public void realRun() throws InterruptedException {
1263	>	for (int i = 0; i < SIZE; ++i) {
1264	>	assertEquals(SIZE - i - 1, q.takeLast());
1265		}
1274	–	});
1275	–	try {
1276	–	t.start();
1277	–	Thread.sleep(SHORT_DELAY_MS);
1278	–	t.interrupt();
1279	–	t.join();
1280	–	} catch (Exception e) {
1281	–	unexpectedException();
1282	–	}
1283	–	}
1266
1267	<	/**
1268	<	* TakeLast removes existing elements until empty, then blocks interruptibly
1269	<	*/
1270	<	public void testBlockingTakeLast() {
1271	<	Thread t = new Thread(new Runnable() {
1272	<	public void run() {
1291	<	try {
1292	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1293	<	for (int i = 0; i < SIZE; ++i) {
1294	<	assertEquals(SIZE-i-1, ((Integer)q.takeLast()).intValue());
1295	<	}
1296	<	q.takeLast();
1297	<	threadShouldThrow();
1298	<	} catch (InterruptedException success) {
1299	<	}
1300	<	}});
1301	<	t.start();
1302	<	try {
1303	<	Thread.sleep(SHORT_DELAY_MS);
1304	<	t.interrupt();
1305	<	t.join();
1306	<	}
1307	<	catch (InterruptedException ie) {
1308	<	unexpectedException();
1309	<	}
1310	<	}
1267	>	Thread.currentThread().interrupt();
1268	>	try {
1269	>	q.takeLast();
1270	>	shouldThrow();
1271	>	} catch (InterruptedException success) {}
1272	>	assertFalse(Thread.interrupted());
1273
1274	+	pleaseInterrupt.countDown();
1275	+	try {
1276	+	q.takeLast();
1277	+	shouldThrow();
1278	+	} catch (InterruptedException success) {}
1279	+	assertFalse(Thread.interrupted());
1280	+	}});
1281	+
1282	+	await(pleaseInterrupt);
1283	+	assertThreadStaysAlive(t);
1284	+	t.interrupt();
1285	+	awaitTermination(t);
1286	+	}
1287
1288		/**
1289		* timed pollLast with zero timeout succeeds when non-empty, else times out
1290		*/
1291	<	public void testTimedPollLast0() {
1292	<	try {
1293	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1294	<	for (int i = 0; i < SIZE; ++i) {
1320	<	assertEquals(SIZE-i-1, ((Integer)q.pollLast(0, MILLISECONDS)).intValue());
1321	<	}
1322	<	assertNull(q.pollLast(0, MILLISECONDS));
1323	<	} catch (InterruptedException e) {
1324	<	unexpectedException();
1291	>	public void testTimedPollLast0() throws InterruptedException {
1292	>	LinkedBlockingDeque q = populatedDeque(SIZE);
1293	>	for (int i = 0; i < SIZE; ++i) {
1294	>	assertEquals(SIZE - i - 1, q.pollLast(0, MILLISECONDS));
1295		}
1296	+	assertNull(q.pollLast(0, MILLISECONDS));
1297		}
1298
1299		/**
1300		* timed pollLast with nonzero timeout succeeds when non-empty, else times out
1301		*/
1302	<	public void testTimedPollLast() {
1303	<	try {
1304	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1305	<	for (int i = 0; i < SIZE; ++i) {
1306	<	assertEquals(SIZE-i-1, ((Integer)q.pollLast(SHORT_DELAY_MS, MILLISECONDS)).intValue());
1307	<	}
1308	<	assertNull(q.pollLast(SHORT_DELAY_MS, MILLISECONDS));
1309	<	} catch (InterruptedException e) {
1310	<	unexpectedException();
1311	<	}
1302	>	public void testTimedPollLast() throws InterruptedException {
1303	>	LinkedBlockingDeque q = populatedDeque(SIZE);
1304	>	for (int i = 0; i < SIZE; ++i) {
1305	>	long startTime = System.nanoTime();
1306	>	assertEquals(SIZE - i - 1, q.pollLast(LONG_DELAY_MS, MILLISECONDS));
1307	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1308	>	}
1309	>	long startTime = System.nanoTime();
1310	>	assertNull(q.pollLast(timeoutMillis(), MILLISECONDS));
1311	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
1312	>	checkEmpty(q);
1313		}
1314
1315		/**
1316		* Interrupted timed pollLast throws InterruptedException instead of
1317		* returning timeout status
1318		*/
1319	<	public void testInterruptedTimedPollLast() {
1320	<	Thread t = new Thread(new Runnable() {
1321	<	public void run() {
1322	<	try {
1323	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1324	<	for (int i = 0; i < SIZE; ++i) {
1325	<	threadAssertEquals(SIZE-i-1, ((Integer)q.pollLast(SHORT_DELAY_MS, MILLISECONDS)).intValue());
1326	<	}
1327	<	threadAssertNull(q.pollLast(SHORT_DELAY_MS, MILLISECONDS));
1328	<	} catch (InterruptedException success) {
1329	<	}
1330	<	}});
1331	<	t.start();
1332	<	try {
1333	<	Thread.sleep(SHORT_DELAY_MS);
1334	<	t.interrupt();
1335	<	t.join();
1336	<	}
1337	<	catch (InterruptedException ie) {
1338	<	unexpectedException();
1339	<	}
1319	>	public void testInterruptedTimedPollLast() throws InterruptedException {
1320	>	final LinkedBlockingDeque q = populatedDeque(SIZE);
1321	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
1322	>	Thread t = newStartedThread(new CheckedRunnable() {
1323	>	public void realRun() throws InterruptedException {
1324	>	long startTime = System.nanoTime();
1325	>	for (int i = 0; i < SIZE; ++i) {
1326	>	assertEquals(SIZE - i - 1,
1327	>	q.pollLast(LONG_DELAY_MS, MILLISECONDS));
1328	>	}
1329	>
1330	>	Thread.currentThread().interrupt();
1331	>	try {
1332	>	q.pollLast(LONG_DELAY_MS, MILLISECONDS);
1333	>	shouldThrow();
1334	>	} catch (InterruptedException success) {}
1335	>	assertFalse(Thread.interrupted());
1336	>
1337	>	pleaseInterrupt.countDown();
1338	>	try {
1339	>	q.pollLast(LONG_DELAY_MS, MILLISECONDS);
1340	>	shouldThrow();
1341	>	} catch (InterruptedException success) {}
1342	>	assertFalse(Thread.interrupted());
1343	>
1344	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1345	>	}});
1346	>
1347	>	await(pleaseInterrupt);
1348	>	assertThreadStaysAlive(t);
1349	>	t.interrupt();
1350	>	awaitTermination(t);
1351	>	checkEmpty(q);
1352		}
1353
1354		/**
1355	<	*  timed poll before a delayed offerLast fails; after offerLast succeeds;
1356	<	*  on interruption throws
1355	>	* timed poll before a delayed offerLast fails; after offerLast succeeds;
1356	>	* on interruption throws
1357		*/
1358	<	public void testTimedPollWithOfferLast() {
1358	>	public void testTimedPollWithOfferLast() throws InterruptedException {
1359		final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
1360	<	Thread t = new Thread(new Runnable() {
1361	<	public void run() {
1362	<	try {
1363	<	threadAssertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS));
1364	<	q.poll(LONG_DELAY_MS, MILLISECONDS);
1365	<	q.poll(LONG_DELAY_MS, MILLISECONDS);
1382	<	threadShouldThrow();
1383	<	} catch (InterruptedException success) { }
1384	<	}
1385	<	});
1386	<	try {
1387	<	t.start();
1388	<	Thread.sleep(SMALL_DELAY_MS);
1389	<	assertTrue(q.offerLast(zero, SHORT_DELAY_MS, MILLISECONDS));
1390	<	t.interrupt();
1391	<	t.join();
1392	<	} catch (Exception e) {
1393	<	unexpectedException();
1394	<	}
1395	<	}
1360	>	final CheckedBarrier barrier = new CheckedBarrier(2);
1361	>	Thread t = newStartedThread(new CheckedRunnable() {
1362	>	public void realRun() throws InterruptedException {
1363	>	long startTime = System.nanoTime();
1364	>	assertNull(q.poll(timeoutMillis(), MILLISECONDS));
1365	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
1366
1367	+	barrier.await();
1368	+
1369	+	assertSame(zero, q.poll(LONG_DELAY_MS, MILLISECONDS));
1370	+
1371	+	Thread.currentThread().interrupt();
1372	+	try {
1373	+	q.poll(LONG_DELAY_MS, MILLISECONDS);
1374	+	shouldThrow();
1375	+	} catch (InterruptedException success) {}
1376	+	assertFalse(Thread.interrupted());
1377	+
1378	+	barrier.await();
1379	+	try {
1380	+	q.poll(LONG_DELAY_MS, MILLISECONDS);
1381	+	shouldThrow();
1382	+	} catch (InterruptedException success) {}
1383	+	assertFalse(Thread.interrupted());
1384	+
1385	+	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1386	+	}});
1387	+
1388	+	barrier.await();
1389	+	long startTime = System.nanoTime();
1390	+	assertTrue(q.offerLast(zero, LONG_DELAY_MS, MILLISECONDS));
1391	+	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1392	+
1393	+	barrier.await();
1394	+	assertThreadStaysAlive(t);
1395	+	t.interrupt();
1396	+	awaitTermination(t);
1397	+	}
1398
1399		/**
1400		* element returns next element, or throws NSEE if empty
#	Line 1401 | Line 1402 | public class LinkedBlockingDequeTest ext
1402		public void testElement() {
1403		LinkedBlockingDeque q = populatedDeque(SIZE);
1404		for (int i = 0; i < SIZE; ++i) {
1405	<	assertEquals(i, ((Integer)q.element()).intValue());
1405	>	assertEquals(i, q.element());
1406		q.poll();
1407		}
1408		try {
1409		q.element();
1410		shouldThrow();
1411	<	}
1411	<	catch (NoSuchElementException success) {}
1412	<	}
1413	<
1414	<	/**
1415	<	* remove(x) removes x and returns true if present
1416	<	*/
1417	<	public void testRemoveElement() {
1418	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1419	<	for (int i = 1; i < SIZE; i+=2) {
1420	<	assertTrue(q.remove(new Integer(i)));
1421	<	}
1422	<	for (int i = 0; i < SIZE; i+=2) {
1423	<	assertTrue(q.remove(new Integer(i)));
1424	<	assertFalse(q.remove(new Integer(i+1)));
1425	<	}
1426	<	assertTrue(q.isEmpty());
1411	>	} catch (NoSuchElementException success) {}
1412		}
1413
1414		/**
#	Line 1482 | Line 1467 | public class LinkedBlockingDequeTest ext
1467		assertTrue(changed);
1468
1469		assertTrue(q.containsAll(p));
1470	<	assertEquals(SIZE-i, q.size());
1470	>	assertEquals(SIZE - i, q.size());
1471		p.remove();
1472		}
1473		}
#	Line 1495 | Line 1480 | public class LinkedBlockingDequeTest ext
1480		LinkedBlockingDeque q = populatedDeque(SIZE);
1481		LinkedBlockingDeque p = populatedDeque(i);
1482		assertTrue(q.removeAll(p));
1483	<	assertEquals(SIZE-i, q.size());
1483	>	assertEquals(SIZE - i, q.size());
1484		for (int j = 0; j < i; ++j) {
1485	<	Integer I = (Integer)(p.remove());
1486	<	assertFalse(q.contains(I));
1485	>	Integer x = (Integer)(p.remove());
1486	>	assertFalse(q.contains(x));
1487		}
1488		}
1489		}
1490
1491		/**
1492	<	* toArray contains all elements
1492	>	* toArray contains all elements in FIFO order
1493		*/
1494	<	public void testToArray() {
1494	>	public void testToArray() throws InterruptedException {
1495		LinkedBlockingDeque q = populatedDeque(SIZE);
1496		Object[] o = q.toArray();
1512	–	try {
1497		for (int i = 0; i < o.length; i++)
1498	<	assertEquals(o[i], q.take());
1515	<	} catch (InterruptedException e) {
1516	<	unexpectedException();
1517	<	}
1498	>	assertSame(o[i], q.poll());
1499		}
1500
1501		/**
1502	<	* toArray(a) contains all elements
1502	>	* toArray(a) contains all elements in FIFO order
1503		*/
1504		public void testToArray2() {
1505	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1505	>	LinkedBlockingDeque<Integer> q = populatedDeque(SIZE);
1506		Integer[] ints = new Integer[SIZE];
1507	<	ints = (Integer[])q.toArray(ints);
1508	<	try {
1509	<	for (int i = 0; i < ints.length; i++)
1510	<	assertEquals(ints[i], q.take());
1530	<	} catch (InterruptedException e) {
1531	<	unexpectedException();
1532	<	}
1507	>	Integer[] array = q.toArray(ints);
1508	>	assertSame(ints, array);
1509	>	for (int i = 0; i < ints.length; i++)
1510	>	assertSame(ints[i], q.remove());
1511		}
1512
1513		/**
1514	<	* toArray(null) throws NPE
1537	<	*/
1538	<	public void testToArray_BadArg() {
1539	<	try {
1540	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1541	<	Object o[] = q.toArray(null);
1542	<	shouldThrow();
1543	<	} catch (NullPointerException success) {}
1544	<	}
1545	<
1546	<	/**
1547	<	* toArray with incompatible array type throws CCE
1514	>	* toArray(incompatible array type) throws ArrayStoreException
1515		*/
1516		public void testToArray1_BadArg() {
1517	+	LinkedBlockingDeque q = populatedDeque(SIZE);
1518		try {
1519	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1552	<	Object o[] = q.toArray(new String[10] );
1519	>	q.toArray(new String[10]);
1520		shouldThrow();
1521	<	} catch (ArrayStoreException  success) {}
1521	>	} catch (ArrayStoreException success) {}
1522		}
1523
1557	–
1524		/**
1525		* iterator iterates through all elements
1526		*/
1527	<	public void testIterator() {
1527	>	public void testIterator() throws InterruptedException {
1528		LinkedBlockingDeque q = populatedDeque(SIZE);
1529		Iterator it = q.iterator();
1530	<	try {
1531	<	while (it.hasNext()) {
1532	<	assertEquals(it.next(), q.take());
1533	<	}
1534	<	} catch (InterruptedException e) {
1535	<	unexpectedException();
1536	<	}
1530	>	int i;
1531	>	for (i = 0; it.hasNext(); i++)
1532	>	assertTrue(q.contains(it.next()));
1533	>	assertEquals(i, SIZE);
1534	>	assertIteratorExhausted(it);
1535	>
1536	>	it = q.iterator();
1537	>	for (i = 0; it.hasNext(); i++)
1538	>	assertEquals(it.next(), q.take());
1539	>	assertEquals(i, SIZE);
1540	>	assertIteratorExhausted(it);
1541	>	}
1542	>
1543	>	/**
1544	>	* iterator of empty collection has no elements
1545	>	*/
1546	>	public void testEmptyIterator() {
1547	>	Deque c = new LinkedBlockingDeque();
1548	>	assertIteratorExhausted(c.iterator());
1549	>	assertIteratorExhausted(c.descendingIterator());
1550		}
1551
1552		/**
1553		* iterator.remove removes current element
1554		*/
1555	<	public void testIteratorRemove () {
1555	>	public void testIteratorRemove() {
1556		final LinkedBlockingDeque q = new LinkedBlockingDeque(3);
1557		q.add(two);
1558		q.add(one);
#	Line 1584 | Line 1563 | public class LinkedBlockingDequeTest ext
1563		it.remove();
1564
1565		it = q.iterator();
1566	<	assertEquals(it.next(), one);
1567	<	assertEquals(it.next(), three);
1566	>	assertSame(it.next(), one);
1567	>	assertSame(it.next(), three);
1568		assertFalse(it.hasNext());
1569		}
1570
1592	–
1571		/**
1572		* iterator ordering is FIFO
1573		*/
#	Line 1601 | Line 1579 | public class LinkedBlockingDequeTest ext
1579		assertEquals(0, q.remainingCapacity());
1580		int k = 0;
1581		for (Iterator it = q.iterator(); it.hasNext();) {
1582	<	int i = ((Integer)(it.next())).intValue();
1605	<	assertEquals(++k, i);
1582	>	assertEquals(++k, it.next());
1583		}
1584		assertEquals(3, k);
1585		}
#	Line 1610 | Line 1587 | public class LinkedBlockingDequeTest ext
1587		/**
1588		* Modifications do not cause iterators to fail
1589		*/
1590	<	public void testWeaklyConsistentIteration () {
1590	>	public void testWeaklyConsistentIteration() {
1591		final LinkedBlockingDeque q = new LinkedBlockingDeque(3);
1592		q.add(one);
1593		q.add(two);
1594		q.add(three);
1595	<	try {
1596	<	for (Iterator it = q.iterator(); it.hasNext();) {
1597	<	q.remove();
1621	<	it.next();
1622	<	}
1623	<	}
1624	<	catch (ConcurrentModificationException e) {
1625	<	unexpectedException();
1595	>	for (Iterator it = q.iterator(); it.hasNext();) {
1596	>	q.remove();
1597	>	it.next();
1598		}
1599		assertEquals(0, q.size());
1600		}
1601
1630	–
1602		/**
1603	<	*  Descending iterator iterates through all elements
1603	>	* Descending iterator iterates through all elements
1604		*/
1605		public void testDescendingIterator() {
1606		LinkedBlockingDeque q = populatedDeque(SIZE);
#	Line 1643 | Line 1614 | public class LinkedBlockingDequeTest ext
1614		assertFalse(it.hasNext());
1615		try {
1616		it.next();
1617	<	} catch (NoSuchElementException success) {
1618	<	}
1617	>	shouldThrow();
1618	>	} catch (NoSuchElementException success) {}
1619		}
1620
1621		/**
1622	<	*  Descending iterator ordering is reverse FIFO
1622	>	* Descending iterator ordering is reverse FIFO
1623		*/
1624		public void testDescendingIteratorOrdering() {
1625		final LinkedBlockingDeque q = new LinkedBlockingDeque();
#	Line 1658 | Line 1629 | public class LinkedBlockingDequeTest ext
1629		q.add(new Integer(1));
1630		int k = 0;
1631		for (Iterator it = q.descendingIterator(); it.hasNext();) {
1632	<	int i = ((Integer)(it.next())).intValue();
1662	<	assertEquals(++k, i);
1632	>	assertEquals(++k, it.next());
1633		}
1634
1635		assertEquals(3, k);
#	Line 1672 | Line 1642 | public class LinkedBlockingDequeTest ext
1642		/**
1643		* descendingIterator.remove removes current element
1644		*/
1645	<	public void testDescendingIteratorRemove () {
1645	>	public void testDescendingIteratorRemove() {
1646		final LinkedBlockingDeque q = new LinkedBlockingDeque();
1647		for (int iters = 0; iters < 100; ++iters) {
1648		q.add(new Integer(3));
#	Line 1691 | Line 1661 | public class LinkedBlockingDequeTest ext
1661		}
1662		}
1663
1694	–
1664		/**
1665		* toString contains toStrings of elements
1666		*/
#	Line 1699 | Line 1668 | public class LinkedBlockingDequeTest ext
1668		LinkedBlockingDeque q = populatedDeque(SIZE);
1669		String s = q.toString();
1670		for (int i = 0; i < SIZE; ++i) {
1671	<	assertTrue(s.indexOf(String.valueOf(i)) >= 0);
1671	>	assertTrue(s.contains(String.valueOf(i)));
1672		}
1673		}
1674
1706	–
1675		/**
1676		* offer transfers elements across Executor tasks
1677		*/
#	Line 1711 | Line 1679 | public class LinkedBlockingDequeTest ext
1679		final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
1680		q.add(one);
1681		q.add(two);
1682	<	ExecutorService executor = Executors.newFixedThreadPool(2);
1683	<	executor.execute(new Runnable() {
1684	<	public void run() {
1685	<	threadAssertFalse(q.offer(three));
1686	<	try {
1687	<	threadAssertTrue(q.offer(three, MEDIUM_DELAY_MS, MILLISECONDS));
1688	<	threadAssertEquals(0, q.remainingCapacity());
1689	<	}
1690	<	catch (InterruptedException e) {
1691	<	threadUnexpectedException();
1724	<	}
1725	<	}
1726	<	});
1727	<
1728	<	executor.execute(new Runnable() {
1729	<	public void run() {
1730	<	try {
1731	<	Thread.sleep(SMALL_DELAY_MS);
1732	<	threadAssertEquals(one, q.take());
1733	<	}
1734	<	catch (InterruptedException e) {
1735	<	threadUnexpectedException();
1736	<	}
1737	<	}
1738	<	});
1682	>	final CheckedBarrier threadsStarted = new CheckedBarrier(2);
1683	>	final ExecutorService executor = Executors.newFixedThreadPool(2);
1684	>	try (PoolCleaner cleaner = cleaner(executor)) {
1685	>	executor.execute(new CheckedRunnable() {
1686	>	public void realRun() throws InterruptedException {
1687	>	assertFalse(q.offer(three));
1688	>	threadsStarted.await();
1689	>	assertTrue(q.offer(three, LONG_DELAY_MS, MILLISECONDS));
1690	>	assertEquals(0, q.remainingCapacity());
1691	>	}});
1692
1693	<	joinPool(executor);
1693	>	executor.execute(new CheckedRunnable() {
1694	>	public void realRun() throws InterruptedException {
1695	>	threadsStarted.await();
1696	>	assertSame(one, q.take());
1697	>	}});
1698	>	}
1699		}
1700
1701		/**
1702	<	* poll retrieves elements across Executor threads
1702	>	* timed poll retrieves elements across Executor threads
1703		*/
1704		public void testPollInExecutor() {
1705		final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
1706	<	ExecutorService executor = Executors.newFixedThreadPool(2);
1707	<	executor.execute(new Runnable() {
1708	<	public void run() {
1709	<	threadAssertNull(q.poll());
1710	<	try {
1711	<	threadAssertTrue(null != q.poll(MEDIUM_DELAY_MS, MILLISECONDS));
1712	<	threadAssertTrue(q.isEmpty());
1713	<	}
1714	<	catch (InterruptedException e) {
1715	<	threadUnexpectedException();
1758	<	}
1759	<	}
1760	<	});
1706	>	final CheckedBarrier threadsStarted = new CheckedBarrier(2);
1707	>	final ExecutorService executor = Executors.newFixedThreadPool(2);
1708	>	try (PoolCleaner cleaner = cleaner(executor)) {
1709	>	executor.execute(new CheckedRunnable() {
1710	>	public void realRun() throws InterruptedException {
1711	>	assertNull(q.poll());
1712	>	threadsStarted.await();
1713	>	assertSame(one, q.poll(LONG_DELAY_MS, MILLISECONDS));
1714	>	checkEmpty(q);
1715	>	}});
1716
1717	<	executor.execute(new Runnable() {
1718	<	public void run() {
1719	<	try {
1765	<	Thread.sleep(SMALL_DELAY_MS);
1717	>	executor.execute(new CheckedRunnable() {
1718	>	public void realRun() throws InterruptedException {
1719	>	threadsStarted.await();
1720		q.put(one);
1721	<	}
1768	<	catch (InterruptedException e) {
1769	<	threadUnexpectedException();
1770	<	}
1771	<	}
1772	<	});
1773	<
1774	<	joinPool(executor);
1775	<	}
1776	<
1777	<	/**
1778	<	* A deserialized serialized deque has same elements in same order
1779	<	*/
1780	<	public void testSerialization() {
1781	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1782	<
1783	<	try {
1784	<	ByteArrayOutputStream bout = new ByteArrayOutputStream(10000);
1785	<	ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout));
1786	<	out.writeObject(q);
1787	<	out.close();
1788	<
1789	<	ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray());
1790	<	ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin));
1791	<	LinkedBlockingDeque r = (LinkedBlockingDeque)in.readObject();
1792	<	assertEquals(q.size(), r.size());
1793	<	while (!q.isEmpty())
1794	<	assertEquals(q.remove(), r.remove());
1795	<	} catch (Exception e) {
1796	<	unexpectedException();
1797	<	}
1798	<	}
1799	<
1800	<	/**
1801	<	* drainTo(null) throws NPE
1802	<	*/
1803	<	public void testDrainToNull() {
1804	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1805	<	try {
1806	<	q.drainTo(null);
1807	<	shouldThrow();
1808	<	} catch (NullPointerException success) {
1721	>	}});
1722		}
1723		}
1724
1725		/**
1726	<	* drainTo(this) throws IAE
1726	>	* A deserialized serialized deque has same elements in same order
1727		*/
1728	<	public void testDrainToSelf() {
1729	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1730	<	try {
1731	<	q.drainTo(q);
1732	<	shouldThrow();
1733	<	} catch (IllegalArgumentException success) {
1728	>	public void testSerialization() throws Exception {
1729	>	Queue x = populatedDeque(SIZE);
1730	>	Queue y = serialClone(x);
1731	>
1732	>	assertNotSame(y, x);
1733	>	assertEquals(x.size(), y.size());
1734	>	assertEquals(x.toString(), y.toString());
1735	>	assertTrue(Arrays.equals(x.toArray(), y.toArray()));
1736	>	while (!x.isEmpty()) {
1737	>	assertFalse(y.isEmpty());
1738	>	assertEquals(x.remove(), y.remove());
1739		}
1740	+	assertTrue(y.isEmpty());
1741		}
1742
1743		/**
#	Line 1828 | Line 1747 | public class LinkedBlockingDequeTest ext
1747		LinkedBlockingDeque q = populatedDeque(SIZE);
1748		ArrayList l = new ArrayList();
1749		q.drainTo(l);
1750	<	assertEquals(q.size(), 0);
1751	<	assertEquals(l.size(), SIZE);
1750	>	assertEquals(0, q.size());
1751	>	assertEquals(SIZE, l.size());
1752		for (int i = 0; i < SIZE; ++i)
1753		assertEquals(l.get(i), new Integer(i));
1754		q.add(zero);
#	Line 1839 | Line 1758 | public class LinkedBlockingDequeTest ext
1758		assertTrue(q.contains(one));
1759		l.clear();
1760		q.drainTo(l);
1761	<	assertEquals(q.size(), 0);
1762	<	assertEquals(l.size(), 2);
1761	>	assertEquals(0, q.size());
1762	>	assertEquals(2, l.size());
1763		for (int i = 0; i < 2; ++i)
1764		assertEquals(l.get(i), new Integer(i));
1765		}
#	Line 1848 | Line 1767 | public class LinkedBlockingDequeTest ext
1767		/**
1768		* drainTo empties full deque, unblocking a waiting put.
1769		*/
1770	<	public void testDrainToWithActivePut() {
1770	>	public void testDrainToWithActivePut() throws InterruptedException {
1771		final LinkedBlockingDeque q = populatedDeque(SIZE);
1772	<	Thread t = new Thread(new Runnable() {
1773	<	public void run() {
1774	<	try {
1775	<	q.put(new Integer(SIZE+1));
1857	<	} catch (InterruptedException ie) {
1858	<	threadUnexpectedException();
1859	<	}
1860	<	}
1861	<	});
1862	<	try {
1863	<	t.start();
1864	<	ArrayList l = new ArrayList();
1865	<	q.drainTo(l);
1866	<	assertTrue(l.size() >= SIZE);
1867	<	for (int i = 0; i < SIZE; ++i)
1868	<	assertEquals(l.get(i), new Integer(i));
1869	<	t.join();
1870	<	assertTrue(q.size() + l.size() >= SIZE);
1871	<	} catch (Exception e) {
1872	<	unexpectedException();
1873	<	}
1874	<	}
1875	<
1876	<	/**
1877	<	* drainTo(null, n) throws NPE
1878	<	*/
1879	<	public void testDrainToNullN() {
1880	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1881	<	try {
1882	<	q.drainTo(null, 0);
1883	<	shouldThrow();
1884	<	} catch (NullPointerException success) {
1885	<	}
1886	<	}
1772	>	Thread t = new Thread(new CheckedRunnable() {
1773	>	public void realRun() throws InterruptedException {
1774	>	q.put(new Integer(SIZE + 1));
1775	>	}});
1776
1777	<	/**
1778	<	* drainTo(this, n) throws IAE
1779	<	*/
1780	<	public void testDrainToSelfN() {
1781	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1782	<	try {
1783	<	q.drainTo(q, 0);
1784	<	shouldThrow();
1896	<	} catch (IllegalArgumentException success) {
1897	<	}
1777	>	t.start();
1778	>	ArrayList l = new ArrayList();
1779	>	q.drainTo(l);
1780	>	assertTrue(l.size() >= SIZE);
1781	>	for (int i = 0; i < SIZE; ++i)
1782	>	assertEquals(l.get(i), new Integer(i));
1783	>	t.join();
1784	>	assertTrue(q.size() + l.size() >= SIZE);
1785		}
1786
1787		/**
1788	<	* drainTo(c, n) empties first max {n, size} elements of deque into c
1788	>	* drainTo(c, n) empties first min(n, size) elements of queue into c
1789		*/
1790		public void testDrainToN() {
1791		LinkedBlockingDeque q = new LinkedBlockingDeque();
#	Line 1907 | Line 1794 | public class LinkedBlockingDequeTest ext
1794		assertTrue(q.offer(new Integer(j)));
1795		ArrayList l = new ArrayList();
1796		q.drainTo(l, i);
1797	<	int k = (i < SIZE)? i : SIZE;
1798	<	assertEquals(l.size(), k);
1799	<	assertEquals(q.size(), SIZE-k);
1797	>	int k = (i < SIZE) ? i : SIZE;
1798	>	assertEquals(k, l.size());
1799	>	assertEquals(SIZE - k, q.size());
1800		for (int j = 0; j < k; ++j)
1801		assertEquals(l.get(j), new Integer(j));
1802	<	while (q.poll() != null) ;
1802	>	do {} while (q.poll() != null);
1803	>	}
1804	>	}
1805	>
1806	>	/**
1807	>	* remove(null), contains(null) always return false
1808	>	*/
1809	>	public void testNeverContainsNull() {
1810	>	Deque<?>[] qs = {
1811	>	new LinkedBlockingDeque<Object>(),
1812	>	populatedDeque(2),
1813	>	};
1814	>
1815	>	for (Deque<?> q : qs) {
1816	>	assertFalse(q.contains(null));
1817	>	assertFalse(q.remove(null));
1818	>	assertFalse(q.removeFirstOccurrence(null));
1819	>	assertFalse(q.removeLastOccurrence(null));
1820		}
1821		}
1822

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