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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 1.60 by jsr166, Sun May 24 01:42:14 2015 UTC

#	Line 1 | Line 1
1		/*
2		* Written by Doug Lea with assistance from members of JCP JSR-166
3		* Expert Group and released to the public domain, as explained at
4	<	* http://creativecommons.org/licenses/publicdomain
4	>	* http://creativecommons.org/publicdomain/zero/1.0/
5		*/
6
7	–	import junit.framework.*;
8	–	import java.util.*;
9	–	import java.util.concurrent.*;
7		import static java.util.concurrent.TimeUnit.MILLISECONDS;
8	<	import java.io.*;
8	>
9	>	import java.util.ArrayList;
10	>	import java.util.Arrays;
11	>	import java.util.Collection;
12	>	import java.util.Deque;
13	>	import java.util.Iterator;
14	>	import java.util.NoSuchElementException;
15	>	import java.util.Queue;
16	>	import java.util.concurrent.BlockingDeque;
17	>	import java.util.concurrent.BlockingQueue;
18	>	import java.util.concurrent.CountDownLatch;
19	>	import java.util.concurrent.Executors;
20	>	import java.util.concurrent.ExecutorService;
21	>	import java.util.concurrent.LinkedBlockingDeque;
22	>
23	>	import junit.framework.Test;
24
25		public class LinkedBlockingDequeTest extends JSR166TestCase {
26	+
27	+	public static class Unbounded extends BlockingQueueTest {
28	+	protected BlockingQueue emptyCollection() {
29	+	return new LinkedBlockingDeque();
30	+	}
31	+	}
32	+
33	+	public static class Bounded extends BlockingQueueTest {
34	+	protected BlockingQueue emptyCollection() {
35	+	return new LinkedBlockingDeque(SIZE);
36	+	}
37	+	}
38	+
39		public static void main(String[] args) {
40	<	junit.textui.TestRunner.run (suite());
40	>	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
50	>	* Returns a new deque of given size containing consecutive
51		* Integers 0 ... n.
52		*/
53	<	private LinkedBlockingDeque populatedDeque(int n) {
54	<	LinkedBlockingDeque q = new LinkedBlockingDeque(n);
53	>	private LinkedBlockingDeque<Integer> populatedDeque(int n) {
54	>	LinkedBlockingDeque<Integer> q =
55	>	new LinkedBlockingDeque<Integer>(n);
56		assertTrue(q.isEmpty());
57		for (int i = 0; i < n; i++)
58		assertTrue(q.offer(new Integer(i)));
#	Line 54 | Line 82 | public class LinkedBlockingDequeTest ext
82		public void testSize() {
83		LinkedBlockingDeque q = populatedDeque(SIZE);
84		for (int i = 0; i < SIZE; ++i) {
85	<	assertEquals(SIZE-i, q.size());
85	>	assertEquals(SIZE - i, q.size());
86		q.removeFirst();
87		}
88		for (int i = 0; i < SIZE; ++i) {
#	Line 64 | Line 92 | public class LinkedBlockingDequeTest ext
92		}
93
94		/**
95	<	* offer(null) throws NPE
95	>	* offerFirst(null) throws NullPointerException
96		*/
97		public void testOfferFirstNull() {
98	+	LinkedBlockingDeque q = new LinkedBlockingDeque();
99		try {
71	–	LinkedBlockingDeque q = new LinkedBlockingDeque();
100		q.offerFirst(null);
101		shouldThrow();
102	<	} catch (NullPointerException success) {
103	<	}
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 94 | Line 132 | public class LinkedBlockingDequeTest ext
132		}
133
134		/**
135	<	*  pollFirst succeeds unless empty
135	>	* pollFirst succeeds unless empty
136		*/
137		public void testPollFirst() {
138		LinkedBlockingDeque q = populatedDeque(SIZE);
139		for (int i = 0; i < SIZE; ++i) {
140	<	assertEquals(i, ((Integer)q.pollFirst()).intValue());
140	>	assertEquals(i, q.pollFirst());
141		}
142		assertNull(q.pollFirst());
143		}
144
145		/**
146	<	*  pollLast succeeds unless empty
146	>	* pollLast succeeds unless empty
147		*/
148		public void testPollLast() {
149		LinkedBlockingDeque q = populatedDeque(SIZE);
150	<	for (int i = SIZE-1; i >= 0; --i) {
151	<	assertEquals(i, ((Integer)q.pollLast()).intValue());
150	>	for (int i = SIZE - 1; i >= 0; --i) {
151	>	assertEquals(i, q.pollLast());
152		}
153		assertNull(q.pollLast());
154		}
155
156		/**
157	<	*  peekFirst returns next element, or null if empty
157	>	* peekFirst returns next element, or null if empty
158		*/
159		public void testPeekFirst() {
160		LinkedBlockingDeque q = populatedDeque(SIZE);
161		for (int i = 0; i < SIZE; ++i) {
162	<	assertEquals(i, ((Integer)q.peekFirst()).intValue());
163	<	q.pollFirst();
162	>	assertEquals(i, q.peekFirst());
163	>	assertEquals(i, q.pollFirst());
164		assertTrue(q.peekFirst() == null ||
165	<	i != ((Integer)q.peekFirst()).intValue());
165	>	!q.peekFirst().equals(i));
166		}
167		assertNull(q.peekFirst());
168		}
169
170		/**
171	<	*  peek returns next element, or null if empty
171	>	* peek returns next element, or null if empty
172		*/
173		public void testPeek() {
174		LinkedBlockingDeque q = populatedDeque(SIZE);
175		for (int i = 0; i < SIZE; ++i) {
176	<	assertEquals(i, ((Integer)q.peek()).intValue());
177	<	q.pollFirst();
176	>	assertEquals(i, q.peek());
177	>	assertEquals(i, q.pollFirst());
178		assertTrue(q.peek() == null ||
179	<	i != ((Integer)q.peek()).intValue());
179	>	!q.peek().equals(i));
180		}
181		assertNull(q.peek());
182		}
183
184		/**
185	<	*  peekLast returns next element, or null if empty
185	>	* peekLast returns next element, or null if empty
186		*/
187		public void testPeekLast() {
188		LinkedBlockingDeque q = populatedDeque(SIZE);
189	<	for (int i = SIZE-1; i >= 0; --i) {
190	<	assertEquals(i, ((Integer)q.peekLast()).intValue());
191	<	q.pollLast();
189	>	for (int i = SIZE - 1; i >= 0; --i) {
190	>	assertEquals(i, q.peekLast());
191	>	assertEquals(i, q.pollLast());
192		assertTrue(q.peekLast() == null ||
193	<	i != ((Integer)q.peekLast()).intValue());
193	>	!q.peekLast().equals(i));
194		}
195		assertNull(q.peekLast());
196		}
197
198		/**
199	<	* getFirst returns next getFirst, or throws NSEE if empty
199	>	* getFirst() returns first element, or throws NSEE if empty
200		*/
201		public void testFirstElement() {
202		LinkedBlockingDeque q = populatedDeque(SIZE);
203		for (int i = 0; i < SIZE; ++i) {
204	<	assertEquals(i, ((Integer)q.getFirst()).intValue());
205	<	q.pollFirst();
204	>	assertEquals(i, q.getFirst());
205	>	assertEquals(i, q.pollFirst());
206		}
207		try {
208		q.getFirst();
209		shouldThrow();
210	<	}
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();
219	>	for (int i = SIZE - 1; i >= 0; --i) {
220	>	assertEquals(i, q.getLast());
221	>	assertEquals(i, q.pollLast());
222		}
223		try {
224		q.getLast();
225		shouldThrow();
226	<	}
189	<	catch (NoSuchElementException success) {}
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) {
241	>	} catch (NoSuchElementException success) {}
242	>	assertNull(q.peekFirst());
243	>	}
244	>
245	>	/**
246	>	* removeLast() removes last element, or throws NSEE if empty
247	>	*/
248	>	public void testRemoveLast() {
249	>	LinkedBlockingDeque q = populatedDeque(SIZE);
250	>	for (int i = SIZE - 1; i >= 0; --i) {
251	>	assertEquals(i, q.removeLast());
252		}
253	+	try {
254	+	q.removeLast();
255	+	shouldThrow();
256	+	} catch (NoSuchElementException success) {}
257	+	assertNull(q.peekLast());
258		}
259
260		/**
261	<	*  remove removes next element, or throws NSEE if empty
261	>	* remove removes next element, or throws NSEE if empty
262		*/
263		public void testRemove() {
264		LinkedBlockingDeque q = populatedDeque(SIZE);
265		for (int i = 0; i < SIZE; ++i) {
266	<	assertEquals(i, ((Integer)q.remove()).intValue());
266	>	assertEquals(i, q.remove());
267		}
268		try {
269		q.remove();
270		shouldThrow();
271	<	} catch (NoSuchElementException success) {
220	<	}
271	>	} catch (NoSuchElementException success) {}
272		}
273
274		/**
#	Line 225 | 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)));
284	>	assertFalse(q.removeFirstOccurrence(new Integer(i + 1)));
285		}
286		assertTrue(q.isEmpty());
287		}
#	Line 240 | 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)));
299	>	assertFalse(q.removeLastOccurrence(new Integer(i + 1)));
300		}
301		assertTrue(q.isEmpty());
302		}
#	Line 257 | Line 308 | public class LinkedBlockingDequeTest ext
308		LinkedBlockingDeque q = populatedDeque(3);
309		q.pollLast();
310		q.addFirst(four);
311	<	assertEquals(four,q.peekFirst());
311	>	assertSame(four, q.peekFirst());
312		}
313
314		/**
#	Line 267 | Line 318 | public class LinkedBlockingDequeTest ext
318		LinkedBlockingDeque q = populatedDeque(3);
319		q.pollLast();
320		q.addLast(four);
321	<	assertEquals(four,q.peekLast());
321	>	assertSame(four, q.peekLast());
322		}
323
273	–
324		/**
325		* A new deque has the indicated capacity, or Integer.MAX_VALUE if
326		* none given
#	Line 281 | 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	<	}
291	<	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	<	}
302	<	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];
311	<	LinkedBlockingDeque q = new LinkedBlockingDeque(Arrays.asList(ints));
359	>	new LinkedBlockingDeque(elements);
360		shouldThrow();
361	<	}
314	<	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];
323	<	for (int i = 0; i < SIZE-1; ++i)
324	<	ints[i] = new Integer(i);
325	<	LinkedBlockingDeque q = new LinkedBlockingDeque(Arrays.asList(ints));
374	>	new LinkedBlockingDeque(elements);
375		shouldThrow();
376	<	}
328	<	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)
341	<	assertEquals(ints[i], q.poll());
342	<	}
343	<	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 362 | 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));
417	>	assertEquals(SIZE - i, q.remainingCapacity());
418	>	assertEquals(SIZE, q.size() + q.remainingCapacity());
419	>	assertTrue(q.add(i));
420		}
421		}
422
423		/**
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	–	/**
424		* push(null) throws NPE
425		*/
426		public void testPushNull() {
427	+	LinkedBlockingDeque q = new LinkedBlockingDeque(1);
428		try {
405	–	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	+	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
439	+	for (int i = 0; i < SIZE; ++i) {
440	+	Integer x = new Integer(i);
441	+	q.push(x);
442	+	assertEquals(x, q.peek());
443	+	}
444	+	assertEquals(0, q.remainingCapacity());
445		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());
446		q.push(new Integer(SIZE));
447	<	} catch (IllegalStateException success) {
448	<	}
447	>	shouldThrow();
448	>	} catch (IllegalStateException success) {}
449		}
450
451		/**
#	Line 432 | Line 455 | public class LinkedBlockingDequeTest ext
455		LinkedBlockingDeque q = populatedDeque(3);
456		q.pollLast();
457		q.push(four);
458	<	assertEquals(four,q.peekFirst());
458	>	assertSame(four, q.peekFirst());
459		}
460
438	–
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) {
451	<	}
472	>	} catch (NoSuchElementException success) {}
473		}
474
454	–
475		/**
476		* Offer succeeds if not full; fails if full
477		*/
#	Line 465 | Line 485 | public class LinkedBlockingDequeTest ext
485		* add succeeds if not full; throws ISE if full
486		*/
487		public void testAdd() {
488	+	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
489	+	for (int i = 0; i < SIZE; ++i)
490	+	assertTrue(q.add(new Integer(i)));
491	+	assertEquals(0, q.remainingCapacity());
492		try {
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());
493		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);
494		shouldThrow();
495	<	}
488	<	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 {
496	–	LinkedBlockingDeque q = populatedDeque(SIZE);
504		q.addAll(q);
505		shouldThrow();
506	<	}
500	<	catch (IllegalArgumentException success) {}
506	>	} catch (IllegalArgumentException success) {}
507		}
508
509		/**
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	–	/**
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);
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));
520	>	q.addAll(elements);
521		shouldThrow();
522	<	}
528	<	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);
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));
535	>	q.addAll(elements);
536		shouldThrow();
537	<	}
542	<	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)
557	<	assertEquals(ints[i], q.poll());
558	<	}
559	<	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
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	–
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);
588	<	assertTrue(q.contains(I));
589	<	}
590	<	assertEquals(0, q.remainingCapacity());
591	<	}
592	<	catch (InterruptedException ie) {
593	<	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, MILLISECONDS));
649	<	q.offer(new Object(), LONG_DELAY_MS, 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();
685	<	}
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) {
695	<	assertEquals(i, ((Integer)q.take()).intValue());
696	<	}
697	<	} catch (InterruptedException e) {
698	<	unexpectedException();
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();
712	<	} 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		}
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	–	}
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() {
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	<	}
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 756 | 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());
716		}
#	Line 764 | Line 718 | public class LinkedBlockingDequeTest ext
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) {
771	<	assertEquals(i, ((Integer)q.poll(0, MILLISECONDS)).intValue());
772	<	}
773	<	assertNull(q.poll(0, MILLISECONDS));
774	<	} catch (InterruptedException e) {
775	<	unexpectedException();
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, MILLISECONDS)).intValue());
737	<	}
738	<	assertNull(q.poll(SHORT_DELAY_MS, 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, MILLISECONDS)).intValue());
756	<	}
757	<	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) { }
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, 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
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 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, MILLISECONDS));
1092	<	q.pollFirst(LONG_DELAY_MS, MILLISECONDS);
1093	<	q.pollFirst(LONG_DELAY_MS, 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, 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() {
1126	>	public void testPutLastNull() throws InterruptedException {
1127	>	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
1128		try {
1128	–	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
1129		q.putLast(null);
1130		shouldThrow();
1131	<	}
1132	<	catch (NullPointerException success) {
1133	<	}
1134	<	catch (InterruptedException ie) {
1135	<	unexpectedException();
1136	<	}
1137	<	}
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);
1148	<	assertTrue(q.contains(I));
1149	<	}
1150	<	assertEquals(0, q.remainingCapacity());
1151	<	}
1152	<	catch (InterruptedException ie) {
1153	<	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, MILLISECONDS));
1228	<	q.offerLast(new Object(), LONG_DELAY_MS, 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();
1245	<	}
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) {
1255	<	assertEquals(SIZE-i-1, ((Integer)q.takeLast()).intValue());
1256	<	}
1257	<	} catch (InterruptedException e) {
1258	<	unexpectedException();
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();
1272	<	} 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		}
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	–	}
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() {
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	<	}
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) {
1320	<	assertEquals(SIZE-i-1, ((Integer)q.pollLast(0, MILLISECONDS)).intValue());
1321	<	}
1322	<	assertNull(q.pollLast(0, MILLISECONDS));
1323	<	} catch (InterruptedException e) {
1324	<	unexpectedException();
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, MILLISECONDS)).intValue());
1305	<	}
1306	<	assertNull(q.pollLast(SHORT_DELAY_MS, 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, MILLISECONDS)).intValue());
1324	<	}
1325	<	threadAssertNull(q.pollLast(SHORT_DELAY_MS, 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,
1324	>	q.pollLast(LONG_DELAY_MS, MILLISECONDS));
1325	>	}
1326	>
1327	>	Thread.currentThread().interrupt();
1328	>	try {
1329	>	q.pollLast(LONG_DELAY_MS, MILLISECONDS);
1330	>	shouldThrow();
1331	>	} catch (InterruptedException success) {}
1332	>	assertFalse(Thread.interrupted());
1333	>
1334	>	pleaseInterrupt.countDown();
1335	>	try {
1336	>	q.pollLast(LONG_DELAY_MS, MILLISECONDS);
1337	>	shouldThrow();
1338	>	} catch (InterruptedException success) {}
1339	>	assertFalse(Thread.interrupted());
1340	>	}});
1341	>
1342	>	await(pleaseInterrupt);
1343	>	assertThreadStaysAlive(t);
1344	>	t.interrupt();
1345	>	awaitTermination(t);
1346		}
1347
1348		/**
1349	<	*  timed poll before a delayed offerLast fails; after offerLast succeeds;
1350	<	*  on interruption throws
1349	>	* timed poll before a delayed offerLast fails; after offerLast succeeds;
1350	>	* on interruption throws
1351		*/
1352	<	public void testTimedPollWithOfferLast() {
1352	>	public void testTimedPollWithOfferLast() throws InterruptedException {
1353		final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
1354	<	Thread t = new Thread(new Runnable() {
1355	<	public void run() {
1356	<	try {
1357	<	threadAssertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS));
1358	<	q.poll(LONG_DELAY_MS, MILLISECONDS);
1359	<	q.poll(LONG_DELAY_MS, MILLISECONDS);
1360	<	threadShouldThrow();
1361	<	} catch (InterruptedException success) { }
1362	<	}
1363	<	});
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	<	}
1354	>	final CheckedBarrier barrier = new CheckedBarrier(2);
1355	>	Thread t = newStartedThread(new CheckedRunnable() {
1356	>	public void realRun() throws InterruptedException {
1357	>	long startTime = System.nanoTime();
1358	>	assertNull(q.poll(timeoutMillis(), MILLISECONDS));
1359	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
1360	>
1361	>	barrier.await();
1362	>
1363	>	assertSame(zero, q.poll(LONG_DELAY_MS, MILLISECONDS));
1364
1365	+	Thread.currentThread().interrupt();
1366	+	try {
1367	+	q.poll(LONG_DELAY_MS, MILLISECONDS);
1368	+	shouldThrow();
1369	+	} catch (InterruptedException success) {}
1370	+	assertFalse(Thread.interrupted());
1371	+
1372	+	barrier.await();
1373	+	try {
1374	+	q.poll(LONG_DELAY_MS, MILLISECONDS);
1375	+	shouldThrow();
1376	+	} catch (InterruptedException success) {}
1377	+	assertFalse(Thread.interrupted());
1378	+	}});
1379	+
1380	+	barrier.await();
1381	+	long startTime = System.nanoTime();
1382	+	assertTrue(q.offerLast(zero, LONG_DELAY_MS, MILLISECONDS));
1383	+	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1384	+
1385	+	barrier.await();
1386	+	assertThreadStaysAlive(t);
1387	+	t.interrupt();
1388	+	awaitTermination(t);
1389	+	}
1390
1391		/**
1392		* element returns next element, or throws NSEE if empty
#	Line 1401 | Line 1394 | public class LinkedBlockingDequeTest ext
1394		public void testElement() {
1395		LinkedBlockingDeque q = populatedDeque(SIZE);
1396		for (int i = 0; i < SIZE; ++i) {
1397	<	assertEquals(i, ((Integer)q.element()).intValue());
1397	>	assertEquals(i, q.element());
1398		q.poll();
1399		}
1400		try {
1401		q.element();
1402		shouldThrow();
1403	<	}
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());
1403	>	} catch (NoSuchElementException success) {}
1404		}
1405
1406		/**
#	Line 1482 | Line 1459 | public class LinkedBlockingDequeTest ext
1459		assertTrue(changed);
1460
1461		assertTrue(q.containsAll(p));
1462	<	assertEquals(SIZE-i, q.size());
1462	>	assertEquals(SIZE - i, q.size());
1463		p.remove();
1464		}
1465		}
#	Line 1495 | Line 1472 | public class LinkedBlockingDequeTest ext
1472		LinkedBlockingDeque q = populatedDeque(SIZE);
1473		LinkedBlockingDeque p = populatedDeque(i);
1474		assertTrue(q.removeAll(p));
1475	<	assertEquals(SIZE-i, q.size());
1475	>	assertEquals(SIZE - i, q.size());
1476		for (int j = 0; j < i; ++j) {
1477	<	Integer I = (Integer)(p.remove());
1478	<	assertFalse(q.contains(I));
1477	>	Integer x = (Integer)(p.remove());
1478	>	assertFalse(q.contains(x));
1479		}
1480		}
1481		}
1482
1483		/**
1484	<	* toArray contains all elements
1484	>	* toArray contains all elements in FIFO order
1485		*/
1486	<	public void testToArray() {
1486	>	public void testToArray() throws InterruptedException {
1487		LinkedBlockingDeque q = populatedDeque(SIZE);
1488		Object[] o = q.toArray();
1512	–	try {
1489		for (int i = 0; i < o.length; i++)
1490	<	assertEquals(o[i], q.take());
1515	<	} catch (InterruptedException e) {
1516	<	unexpectedException();
1517	<	}
1490	>	assertSame(o[i], q.poll());
1491		}
1492
1493		/**
1494	<	* toArray(a) contains all elements
1494	>	* toArray(a) contains all elements in FIFO order
1495		*/
1496		public void testToArray2() {
1497	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1497	>	LinkedBlockingDeque<Integer> q = populatedDeque(SIZE);
1498		Integer[] ints = new Integer[SIZE];
1499	<	ints = (Integer[])q.toArray(ints);
1500	<	try {
1501	<	for (int i = 0; i < ints.length; i++)
1502	<	assertEquals(ints[i], q.take());
1530	<	} catch (InterruptedException e) {
1531	<	unexpectedException();
1532	<	}
1499	>	Integer[] array = q.toArray(ints);
1500	>	assertSame(ints, array);
1501	>	for (int i = 0; i < ints.length; i++)
1502	>	assertSame(ints[i], q.remove());
1503		}
1504
1505		/**
1506	<	* 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
1506	>	* toArray(incompatible array type) throws ArrayStoreException
1507		*/
1508		public void testToArray1_BadArg() {
1509	+	LinkedBlockingDeque q = populatedDeque(SIZE);
1510		try {
1511	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1552	<	Object o[] = q.toArray(new String[10] );
1511	>	q.toArray(new String[10]);
1512		shouldThrow();
1513	<	} catch (ArrayStoreException  success) {}
1513	>	} catch (ArrayStoreException success) {}
1514		}
1515
1557	–
1516		/**
1517		* iterator iterates through all elements
1518		*/
1519	<	public void testIterator() {
1519	>	public void testIterator() throws InterruptedException {
1520		LinkedBlockingDeque q = populatedDeque(SIZE);
1521		Iterator it = q.iterator();
1522	<	try {
1523	<	while (it.hasNext()) {
1524	<	assertEquals(it.next(), q.take());
1525	<	}
1526	<	} catch (InterruptedException e) {
1527	<	unexpectedException();
1528	<	}
1522	>	int i;
1523	>	for (i = 0; it.hasNext(); i++)
1524	>	assertTrue(q.contains(it.next()));
1525	>	assertEquals(i, SIZE);
1526	>	assertIteratorExhausted(it);
1527	>
1528	>	it = q.iterator();
1529	>	for (i = 0; it.hasNext(); i++)
1530	>	assertEquals(it.next(), q.take());
1531	>	assertEquals(i, SIZE);
1532	>	assertIteratorExhausted(it);
1533	>	}
1534	>
1535	>	/**
1536	>	* iterator of empty collection has no elements
1537	>	*/
1538	>	public void testEmptyIterator() {
1539	>	Deque c = new LinkedBlockingDeque();
1540	>	assertIteratorExhausted(c.iterator());
1541	>	assertIteratorExhausted(c.descendingIterator());
1542		}
1543
1544		/**
1545		* iterator.remove removes current element
1546		*/
1547	<	public void testIteratorRemove () {
1547	>	public void testIteratorRemove() {
1548		final LinkedBlockingDeque q = new LinkedBlockingDeque(3);
1549		q.add(two);
1550		q.add(one);
#	Line 1584 | Line 1555 | public class LinkedBlockingDequeTest ext
1555		it.remove();
1556
1557		it = q.iterator();
1558	<	assertEquals(it.next(), one);
1559	<	assertEquals(it.next(), three);
1558	>	assertSame(it.next(), one);
1559	>	assertSame(it.next(), three);
1560		assertFalse(it.hasNext());
1561		}
1562
1592	–
1563		/**
1564		* iterator ordering is FIFO
1565		*/
#	Line 1601 | Line 1571 | public class LinkedBlockingDequeTest ext
1571		assertEquals(0, q.remainingCapacity());
1572		int k = 0;
1573		for (Iterator it = q.iterator(); it.hasNext();) {
1574	<	int i = ((Integer)(it.next())).intValue();
1605	<	assertEquals(++k, i);
1574	>	assertEquals(++k, it.next());
1575		}
1576		assertEquals(3, k);
1577		}
#	Line 1610 | Line 1579 | public class LinkedBlockingDequeTest ext
1579		/**
1580		* Modifications do not cause iterators to fail
1581		*/
1582	<	public void testWeaklyConsistentIteration () {
1582	>	public void testWeaklyConsistentIteration() {
1583		final LinkedBlockingDeque q = new LinkedBlockingDeque(3);
1584		q.add(one);
1585		q.add(two);
1586		q.add(three);
1587	<	try {
1588	<	for (Iterator it = q.iterator(); it.hasNext();) {
1589	<	q.remove();
1621	<	it.next();
1622	<	}
1623	<	}
1624	<	catch (ConcurrentModificationException e) {
1625	<	unexpectedException();
1587	>	for (Iterator it = q.iterator(); it.hasNext();) {
1588	>	q.remove();
1589	>	it.next();
1590		}
1591		assertEquals(0, q.size());
1592		}
1593
1630	–
1594		/**
1595	<	*  Descending iterator iterates through all elements
1595	>	* Descending iterator iterates through all elements
1596		*/
1597		public void testDescendingIterator() {
1598		LinkedBlockingDeque q = populatedDeque(SIZE);
#	Line 1643 | Line 1606 | public class LinkedBlockingDequeTest ext
1606		assertFalse(it.hasNext());
1607		try {
1608		it.next();
1609	<	} catch (NoSuchElementException success) {
1610	<	}
1609	>	shouldThrow();
1610	>	} catch (NoSuchElementException success) {}
1611		}
1612
1613		/**
1614	<	*  Descending iterator ordering is reverse FIFO
1614	>	* Descending iterator ordering is reverse FIFO
1615		*/
1616		public void testDescendingIteratorOrdering() {
1617		final LinkedBlockingDeque q = new LinkedBlockingDeque();
#	Line 1658 | Line 1621 | public class LinkedBlockingDequeTest ext
1621		q.add(new Integer(1));
1622		int k = 0;
1623		for (Iterator it = q.descendingIterator(); it.hasNext();) {
1624	<	int i = ((Integer)(it.next())).intValue();
1662	<	assertEquals(++k, i);
1624	>	assertEquals(++k, it.next());
1625		}
1626
1627		assertEquals(3, k);
#	Line 1672 | Line 1634 | public class LinkedBlockingDequeTest ext
1634		/**
1635		* descendingIterator.remove removes current element
1636		*/
1637	<	public void testDescendingIteratorRemove () {
1637	>	public void testDescendingIteratorRemove() {
1638		final LinkedBlockingDeque q = new LinkedBlockingDeque();
1639		for (int iters = 0; iters < 100; ++iters) {
1640		q.add(new Integer(3));
#	Line 1691 | Line 1653 | public class LinkedBlockingDequeTest ext
1653		}
1654		}
1655
1694	–
1656		/**
1657		* toString contains toStrings of elements
1658		*/
#	Line 1699 | Line 1660 | public class LinkedBlockingDequeTest ext
1660		LinkedBlockingDeque q = populatedDeque(SIZE);
1661		String s = q.toString();
1662		for (int i = 0; i < SIZE; ++i) {
1663	<	assertTrue(s.indexOf(String.valueOf(i)) >= 0);
1663	>	assertTrue(s.contains(String.valueOf(i)));
1664		}
1665		}
1666
1706	–
1667		/**
1668		* offer transfers elements across Executor tasks
1669		*/
#	Line 1712 | Line 1672 | public class LinkedBlockingDequeTest ext
1672		q.add(one);
1673		q.add(two);
1674		ExecutorService executor = Executors.newFixedThreadPool(2);
1675	<	executor.execute(new Runnable() {
1676	<	public void run() {
1677	<	threadAssertFalse(q.offer(three));
1678	<	try {
1679	<	threadAssertTrue(q.offer(three, MEDIUM_DELAY_MS, MILLISECONDS));
1680	<	threadAssertEquals(0, q.remainingCapacity());
1681	<	}
1682	<	catch (InterruptedException e) {
1683	<	threadUnexpectedException();
1684	<	}
1685	<	}
1686	<	});
1687	<
1688	<	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	<	});
1675	>	final CheckedBarrier threadsStarted = new CheckedBarrier(2);
1676	>	executor.execute(new CheckedRunnable() {
1677	>	public void realRun() throws InterruptedException {
1678	>	assertFalse(q.offer(three));
1679	>	threadsStarted.await();
1680	>	assertTrue(q.offer(three, LONG_DELAY_MS, MILLISECONDS));
1681	>	assertEquals(0, q.remainingCapacity());
1682	>	}});
1683	>
1684	>	executor.execute(new CheckedRunnable() {
1685	>	public void realRun() throws InterruptedException {
1686	>	threadsStarted.await();
1687	>	assertSame(one, q.take());
1688	>	}});
1689
1690		joinPool(executor);
1691		}
1692
1693		/**
1694	<	* poll retrieves elements across Executor threads
1694	>	* timed poll retrieves elements across Executor threads
1695		*/
1696		public void testPollInExecutor() {
1697		final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
1698	+	final CheckedBarrier threadsStarted = new CheckedBarrier(2);
1699		ExecutorService executor = Executors.newFixedThreadPool(2);
1700	<	executor.execute(new Runnable() {
1701	<	public void run() {
1702	<	threadAssertNull(q.poll());
1703	<	try {
1704	<	threadAssertTrue(null != q.poll(MEDIUM_DELAY_MS, MILLISECONDS));
1705	<	threadAssertTrue(q.isEmpty());
1706	<	}
1707	<	catch (InterruptedException e) {
1708	<	threadUnexpectedException();
1709	<	}
1710	<	}
1711	<	});
1712	<
1762	<	executor.execute(new Runnable() {
1763	<	public void run() {
1764	<	try {
1765	<	Thread.sleep(SMALL_DELAY_MS);
1766	<	q.put(one);
1767	<	}
1768	<	catch (InterruptedException e) {
1769	<	threadUnexpectedException();
1770	<	}
1771	<	}
1772	<	});
1700	>	executor.execute(new CheckedRunnable() {
1701	>	public void realRun() throws InterruptedException {
1702	>	assertNull(q.poll());
1703	>	threadsStarted.await();
1704	>	assertSame(one, q.poll(LONG_DELAY_MS, MILLISECONDS));
1705	>	checkEmpty(q);
1706	>	}});
1707	>
1708	>	executor.execute(new CheckedRunnable() {
1709	>	public void realRun() throws InterruptedException {
1710	>	threadsStarted.await();
1711	>	q.put(one);
1712	>	}});
1713
1714		joinPool(executor);
1715		}
#	Line 1777 | Line 1717 | public class LinkedBlockingDequeTest ext
1717		/**
1718		* A deserialized serialized deque has same elements in same order
1719		*/
1720	<	public void testSerialization() {
1721	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1722	<
1723	<	try {
1724	<	ByteArrayOutputStream bout = new ByteArrayOutputStream(10000);
1725	<	ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout));
1726	<	out.writeObject(q);
1727	<	out.close();
1728	<
1729	<	ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray());
1730	<	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) {
1809	<	}
1810	<	}
1811	<
1812	<	/**
1813	<	* drainTo(this) throws IAE
1814	<	*/
1815	<	public void testDrainToSelf() {
1816	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1817	<	try {
1818	<	q.drainTo(q);
1819	<	shouldThrow();
1820	<	} catch (IllegalArgumentException success) {
1720	>	public void testSerialization() throws Exception {
1721	>	Queue x = populatedDeque(SIZE);
1722	>	Queue y = serialClone(x);
1723	>
1724	>	assertNotSame(y, x);
1725	>	assertEquals(x.size(), y.size());
1726	>	assertEquals(x.toString(), y.toString());
1727	>	assertTrue(Arrays.equals(x.toArray(), y.toArray()));
1728	>	while (!x.isEmpty()) {
1729	>	assertFalse(y.isEmpty());
1730	>	assertEquals(x.remove(), y.remove());
1731		}
1732	+	assertTrue(y.isEmpty());
1733		}
1734
1735		/**
#	Line 1828 | Line 1739 | public class LinkedBlockingDequeTest ext
1739		LinkedBlockingDeque q = populatedDeque(SIZE);
1740		ArrayList l = new ArrayList();
1741		q.drainTo(l);
1742	<	assertEquals(q.size(), 0);
1743	<	assertEquals(l.size(), SIZE);
1742	>	assertEquals(0, q.size());
1743	>	assertEquals(SIZE, l.size());
1744		for (int i = 0; i < SIZE; ++i)
1745		assertEquals(l.get(i), new Integer(i));
1746		q.add(zero);
#	Line 1839 | Line 1750 | public class LinkedBlockingDequeTest ext
1750		assertTrue(q.contains(one));
1751		l.clear();
1752		q.drainTo(l);
1753	<	assertEquals(q.size(), 0);
1754	<	assertEquals(l.size(), 2);
1753	>	assertEquals(0, q.size());
1754	>	assertEquals(2, l.size());
1755		for (int i = 0; i < 2; ++i)
1756		assertEquals(l.get(i), new Integer(i));
1757		}
#	Line 1848 | Line 1759 | public class LinkedBlockingDequeTest ext
1759		/**
1760		* drainTo empties full deque, unblocking a waiting put.
1761		*/
1762	<	public void testDrainToWithActivePut() {
1762	>	public void testDrainToWithActivePut() throws InterruptedException {
1763		final LinkedBlockingDeque q = populatedDeque(SIZE);
1764	<	Thread t = new Thread(new Runnable() {
1765	<	public void run() {
1766	<	try {
1767	<	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	<	}
1764	>	Thread t = new Thread(new CheckedRunnable() {
1765	>	public void realRun() throws InterruptedException {
1766	>	q.put(new Integer(SIZE + 1));
1767	>	}});
1768
1769	<	/**
1770	<	* drainTo(null, n) throws NPE
1771	<	*/
1772	<	public void testDrainToNullN() {
1773	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1774	<	try {
1775	<	q.drainTo(null, 0);
1776	<	shouldThrow();
1884	<	} catch (NullPointerException success) {
1885	<	}
1886	<	}
1887	<
1888	<	/**
1889	<	* drainTo(this, n) throws IAE
1890	<	*/
1891	<	public void testDrainToSelfN() {
1892	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1893	<	try {
1894	<	q.drainTo(q, 0);
1895	<	shouldThrow();
1896	<	} catch (IllegalArgumentException success) {
1897	<	}
1769	>	t.start();
1770	>	ArrayList l = new ArrayList();
1771	>	q.drainTo(l);
1772	>	assertTrue(l.size() >= SIZE);
1773	>	for (int i = 0; i < SIZE; ++i)
1774	>	assertEquals(l.get(i), new Integer(i));
1775	>	t.join();
1776	>	assertTrue(q.size() + l.size() >= SIZE);
1777		}
1778
1779		/**
1780	<	* drainTo(c, n) empties first max {n, size} elements of deque into c
1780	>	* drainTo(c, n) empties first min(n, size) elements of queue into c
1781		*/
1782		public void testDrainToN() {
1783		LinkedBlockingDeque q = new LinkedBlockingDeque();
#	Line 1907 | Line 1786 | public class LinkedBlockingDequeTest ext
1786		assertTrue(q.offer(new Integer(j)));
1787		ArrayList l = new ArrayList();
1788		q.drainTo(l, i);
1789	<	int k = (i < SIZE)? i : SIZE;
1790	<	assertEquals(l.size(), k);
1791	<	assertEquals(q.size(), SIZE-k);
1789	>	int k = (i < SIZE) ? i : SIZE;
1790	>	assertEquals(k, l.size());
1791	>	assertEquals(SIZE - k, q.size());
1792		for (int j = 0; j < k; ++j)
1793		assertEquals(l.get(j), new Integer(j));
1794	<	while (q.poll() != null) ;
1794	>	do {} while (q.poll() != null);
1795	>	}
1796	>	}
1797	>
1798	>	/**
1799	>	* remove(null), contains(null) always return false
1800	>	*/
1801	>	public void testNeverContainsNull() {
1802	>	Deque<?>[] qs = {
1803	>	new LinkedBlockingDeque<Object>(),
1804	>	populatedDeque(2),
1805	>	};
1806	>
1807	>	for (Deque<?> q : qs) {
1808	>	assertFalse(q.contains(null));
1809	>	assertFalse(q.remove(null));
1810	>	assertFalse(q.removeFirstOccurrence(null));
1811	>	assertFalse(q.removeLastOccurrence(null));
1812		}
1813		}
1814

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