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Comparing jsr166/src/test/tck/LinkedBlockingDequeTest.java (file contents):
Revision 1.10 by jsr166, Sat Nov 21 09:28:16 2009 UTC vs.
Revision 1.62 by jsr166, Tue Oct 6 00:03:55 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		}
104
105		/**
106	+	* offerLast(null) throws NullPointerException
107	+	*/
108	+	public void testOfferLastNull() {
109	+	LinkedBlockingDeque q = new LinkedBlockingDeque();
110	+	try {
111	+	q.offerLast(null);
112	+	shouldThrow();
113	+	} catch (NullPointerException success) {}
114	+	}
115	+
116	+	/**
117		* OfferFirst succeeds
118		*/
119		public void testOfferFirst() {
#	Line 93 | Line 132 | public class LinkedBlockingDequeTest ext
132		}
133
134		/**
135	<	*  pollFirst succeeds unless empty
135	>	* pollFirst succeeds unless empty
136		*/
137		public void testPollFirst() {
138		LinkedBlockingDeque q = populatedDeque(SIZE);
139		for (int i = 0; i < SIZE; ++i) {
140	<	assertEquals(i, ((Integer)q.pollFirst()).intValue());
140	>	assertEquals(i, q.pollFirst());
141		}
142		assertNull(q.pollFirst());
143		}
144
145		/**
146	<	*  pollLast succeeds unless empty
146	>	* pollLast succeeds unless empty
147		*/
148		public void testPollLast() {
149		LinkedBlockingDeque q = populatedDeque(SIZE);
150	<	for (int i = SIZE-1; i >= 0; --i) {
151	<	assertEquals(i, ((Integer)q.pollLast()).intValue());
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		} 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();
#	Line 188 | Line 228 | public class LinkedBlockingDequeTest ext
228		}
229
230		/**
231	<	*  removeFirst removes next element, or throws NSEE if empty
231	>	* removeFirst() removes first element, or throws NSEE if empty
232		*/
233		public void testRemoveFirst() {
234		LinkedBlockingDeque q = populatedDeque(SIZE);
235		for (int i = 0; i < SIZE; ++i) {
236	<	assertEquals(i, ((Integer)q.removeFirst()).intValue());
236	>	assertEquals(i, q.removeFirst());
237		}
238		try {
239		q.removeFirst();
240		shouldThrow();
241		} catch (NoSuchElementException success) {}
242	+	assertNull(q.peekFirst());
243		}
244
245		/**
246	<	*  remove removes next element, or throws NSEE if empty
246	>	* removeLast() removes last element, or throws NSEE if empty
247	>	*/
248	>	public void testRemoveLast() {
249	>	LinkedBlockingDeque q = populatedDeque(SIZE);
250	>	for (int i = SIZE - 1; i >= 0; --i) {
251	>	assertEquals(i, q.removeLast());
252	>	}
253	>	try {
254	>	q.removeLast();
255	>	shouldThrow();
256	>	} catch (NoSuchElementException success) {}
257	>	assertNull(q.peekLast());
258	>	}
259	>
260	>	/**
261	>	* remove removes next element, or throws NSEE if empty
262		*/
263		public void testRemove() {
264		LinkedBlockingDeque q = populatedDeque(SIZE);
265		for (int i = 0; i < SIZE; ++i) {
266	<	assertEquals(i, ((Integer)q.remove()).intValue());
266	>	assertEquals(i, q.remove());
267		}
268		try {
269		q.remove();
#	Line 220 | Line 276 | public class LinkedBlockingDequeTest ext
276		*/
277		public void testRemoveFirstOccurrence() {
278		LinkedBlockingDeque q = populatedDeque(SIZE);
279	<	for (int i = 1; i < SIZE; i+=2) {
279	>	for (int i = 1; i < SIZE; i += 2) {
280		assertTrue(q.removeFirstOccurrence(new Integer(i)));
281		}
282	<	for (int i = 0; i < SIZE; i+=2) {
282	>	for (int i = 0; i < SIZE; i += 2) {
283		assertTrue(q.removeFirstOccurrence(new Integer(i)));
284	<	assertFalse(q.removeFirstOccurrence(new Integer(i+1)));
284	>	assertFalse(q.removeFirstOccurrence(new Integer(i + 1)));
285		}
286		assertTrue(q.isEmpty());
287		}
#	Line 235 | Line 291 | public class LinkedBlockingDequeTest ext
291		*/
292		public void testRemoveLastOccurrence() {
293		LinkedBlockingDeque q = populatedDeque(SIZE);
294	<	for (int i = 1; i < SIZE; i+=2) {
294	>	for (int i = 1; i < SIZE; i += 2) {
295		assertTrue(q.removeLastOccurrence(new Integer(i)));
296		}
297	<	for (int i = 0; i < SIZE; i+=2) {
297	>	for (int i = 0; i < SIZE; i += 2) {
298		assertTrue(q.removeLastOccurrence(new Integer(i)));
299	<	assertFalse(q.removeLastOccurrence(new Integer(i+1)));
299	>	assertFalse(q.removeLastOccurrence(new Integer(i + 1)));
300		}
301		assertTrue(q.isEmpty());
302		}
#	Line 252 | Line 308 | public class LinkedBlockingDequeTest ext
308		LinkedBlockingDeque q = populatedDeque(3);
309		q.pollLast();
310		q.addFirst(four);
311	<	assertEquals(four,q.peekFirst());
311	>	assertSame(four, q.peekFirst());
312		}
313
314		/**
#	Line 262 | Line 318 | public class LinkedBlockingDequeTest ext
318		LinkedBlockingDeque q = populatedDeque(3);
319		q.pollLast();
320		q.addLast(four);
321	<	assertEquals(four,q.peekLast());
321	>	assertSame(four, q.peekLast());
322		}
323
268	–
324		/**
325		* A new deque has the indicated capacity, or Integer.MAX_VALUE if
326		* none given
#	Line 276 | Line 331 | public class LinkedBlockingDequeTest ext
331		}
332
333		/**
334	<	* Constructor throws IAE if  capacity argument nonpositive
334	>	* Constructor throws IllegalArgumentException if capacity argument nonpositive
335		*/
336		public void testConstructor2() {
337		try {
338	<	LinkedBlockingDeque q = new LinkedBlockingDeque(0);
338	>	new LinkedBlockingDeque(0);
339		shouldThrow();
340		} catch (IllegalArgumentException success) {}
341		}
342
343		/**
344	<	* Initializing from null Collection throws NPE
344	>	* Initializing from null Collection throws NullPointerException
345		*/
346		public void testConstructor3() {
347		try {
348	<	LinkedBlockingDeque q = new LinkedBlockingDeque(null);
348	>	new LinkedBlockingDeque(null);
349		shouldThrow();
350		} catch (NullPointerException success) {}
351		}
352
353		/**
354	<	* Initializing from Collection of null elements throws NPE
354	>	* Initializing from Collection of null elements throws NullPointerException
355		*/
356		public void testConstructor4() {
357	+	Collection<Integer> elements = Arrays.asList(new Integer[SIZE]);
358		try {
359	<	Integer[] ints = new Integer[SIZE];
304	<	LinkedBlockingDeque q = new LinkedBlockingDeque(Arrays.asList(ints));
359	>	new LinkedBlockingDeque(elements);
360		shouldThrow();
361		} catch (NullPointerException success) {}
362		}
363
364		/**
365	<	* Initializing from Collection with some null elements throws NPE
365	>	* Initializing from Collection with some null elements throws
366	>	* NullPointerException
367		*/
368		public void testConstructor5() {
369	+	Integer[] ints = new Integer[SIZE];
370	+	for (int i = 0; i < SIZE - 1; ++i)
371	+	ints[i] = i;
372	+	Collection<Integer> elements = Arrays.asList(ints);
373		try {
374	<	Integer[] ints = new Integer[SIZE];
315	<	for (int i = 0; i < SIZE-1; ++i)
316	<	ints[i] = new Integer(i);
317	<	LinkedBlockingDeque q = new LinkedBlockingDeque(Arrays.asList(ints));
374	>	new LinkedBlockingDeque(elements);
375		shouldThrow();
376		} catch (NullPointerException success) {}
377		}
#	Line 323 | Line 380 | public class LinkedBlockingDequeTest ext
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)
332	<	assertEquals(ints[i], q.poll());
333	<	}
334	<	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 353 | 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		/**
370	–	* offer(null) throws NPE
371	–	*/
372	–	public void testOfferNull() {
373	–	try {
374	–	LinkedBlockingDeque q = new LinkedBlockingDeque(1);
375	–	q.offer(null);
376	–	shouldThrow();
377	–	} catch (NullPointerException success) {}
378	–	}
379	–
380	–	/**
381	–	* add(null) throws NPE
382	–	*/
383	–	public void testAddNull() {
384	–	try {
385	–	LinkedBlockingDeque q = new LinkedBlockingDeque(1);
386	–	q.add(null);
387	–	shouldThrow();
388	–	} catch (NullPointerException success) {}
389	–	}
390	–
391	–	/**
424		* push(null) throws NPE
425		*/
426		public void testPushNull() {
427	+	LinkedBlockingDeque q = new LinkedBlockingDeque(1);
428		try {
396	–	LinkedBlockingDeque q = new LinkedBlockingDeque(1);
429		q.push(null);
430		shouldThrow();
431		} catch (NullPointerException success) {}
#	Line 403 | Line 435 | public class LinkedBlockingDequeTest ext
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 {
407	–	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
408	–	for (int i = 0; i < SIZE; ++i) {
409	–	Integer I = new Integer(i);
410	–	q.push(I);
411	–	assertEquals(I, q.peek());
412	–	}
413	–	assertEquals(0, q.remainingCapacity());
446		q.push(new Integer(SIZE));
447		shouldThrow();
448		} catch (IllegalStateException success) {}
#	Line 423 | 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
429	–
461		/**
462	<	*  pop removes next element, or throws NSEE if empty
462	>	* pop removes next element, or throws NSEE if empty
463		*/
464		public void testPop() {
465		LinkedBlockingDeque q = populatedDeque(SIZE);
466		for (int i = 0; i < SIZE; ++i) {
467	<	assertEquals(i, ((Integer)q.pop()).intValue());
467	>	assertEquals(i, q.pop());
468		}
469		try {
470		q.pop();
#	Line 441 | Line 472 | public class LinkedBlockingDequeTest ext
472		} catch (NoSuchElementException success) {}
473		}
474
444	–
475		/**
476		* Offer succeeds if not full; fails if full
477		*/
#	Line 455 | 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 {
459	–	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
460	–	for (int i = 0; i < SIZE; ++i) {
461	–	assertTrue(q.add(new Integer(i)));
462	–	}
463	–	assertEquals(0, q.remainingCapacity());
493		q.add(new Integer(SIZE));
494		shouldThrow();
495		} catch (IllegalStateException success) {}
496		}
497
498		/**
470	–	* addAll(null) throws NPE
471	–	*/
472	–	public void testAddAll1() {
473	–	try {
474	–	LinkedBlockingDeque q = new LinkedBlockingDeque(1);
475	–	q.addAll(null);
476	–	shouldThrow();
477	–	} catch (NullPointerException success) {}
478	–	}
479	–
480	–	/**
499		* addAll(this) throws IAE
500		*/
501		public void testAddAllSelf() {
502	+	LinkedBlockingDeque q = populatedDeque(SIZE);
503		try {
485	–	LinkedBlockingDeque q = populatedDeque(SIZE);
504		q.addAll(q);
505		shouldThrow();
506		} catch (IllegalArgumentException success) {}
507		}
508
509		/**
492	–	* addAll of a collection with null elements throws NPE
493	–	*/
494	–	public void testAddAll2() {
495	–	try {
496	–	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
497	–	Integer[] ints = new Integer[SIZE];
498	–	q.addAll(Arrays.asList(ints));
499	–	shouldThrow();
500	–	} catch (NullPointerException success) {}
501	–	}
502	–	/**
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);
509	<	Integer[] ints = new Integer[SIZE];
510	<	for (int i = 0; i < SIZE-1; ++i)
511	<	ints[i] = new Integer(i);
512	<	q.addAll(Arrays.asList(ints));
520	>	q.addAll(elements);
521		shouldThrow();
522		} catch (NullPointerException success) {}
523		}
524	+
525		/**
526	<	* addAll throws ISE if not enough room
526	>	* addAll throws IllegalStateException if not enough room
527		*/
528		public void testAddAll4() {
529	+	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE - 1);
530	+	Integer[] ints = new Integer[SIZE];
531	+	for (int i = 0; i < SIZE; ++i)
532	+	ints[i] = new Integer(i);
533	+	Collection<Integer> elements = Arrays.asList(ints);
534		try {
535	<	LinkedBlockingDeque q = new LinkedBlockingDeque(1);
522	<	Integer[] ints = new Integer[SIZE];
523	<	for (int i = 0; i < SIZE; ++i)
524	<	ints[i] = new Integer(i);
525	<	q.addAll(Arrays.asList(ints));
535	>	q.addAll(elements);
536		shouldThrow();
537		} catch (IllegalStateException success) {}
538		}
539	+
540		/**
541		* Deque contains all elements, in traversal order, of successful addAll
542		*/
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)
542	<	assertEquals(ints[i], q.poll());
543	<	}
544	<	finally {}
545	<	}
546	<
547	<
548	<	/**
549	<	* put(null) throws NPE
550	<	*/
551	<	public void testPutNull() throws InterruptedException {
552	<	try {
553	<	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
554	<	q.put(null);
555	<	shouldThrow();
556	<	} catch (NullPointerException success) {}
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
555		/**
#	Line 562 | Line 558 | public class LinkedBlockingDequeTest ext
558		public void testPut() throws InterruptedException {
559		LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
560		for (int i = 0; i < SIZE; ++i) {
561	<	Integer I = new Integer(i);
562	<	q.put(I);
563	<	assertTrue(q.contains(I));
561	>	Integer x = new Integer(i);
562	>	q.put(x);
563	>	assertTrue(q.contains(x));
564		}
565		assertEquals(0, q.remainingCapacity());
566		}
#	Line 573 | Line 569 | public class LinkedBlockingDequeTest ext
569		* put blocks interruptibly if full
570		*/
571		public void testBlockingPut() throws InterruptedException {
572	<	Thread t = new Thread(new CheckedRunnable() {
573	<	public void realRun() {
574	<	int added = 0;
572	>	final LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
573	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
574	>	Thread t = newStartedThread(new CheckedRunnable() {
575	>	public void realRun() throws InterruptedException {
576	>	for (int i = 0; i < SIZE; ++i)
577	>	q.put(i);
578	>	assertEquals(SIZE, q.size());
579	>	assertEquals(0, q.remainingCapacity());
580	>
581	>	Thread.currentThread().interrupt();
582		try {
583	<	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
584	<	for (int i = 0; i < SIZE; ++i) {
585	<	q.put(new Integer(i));
586	<	++added;
587	<	}
588	<	q.put(new Integer(SIZE));
589	<	threadShouldThrow();
590	<	} catch (InterruptedException success) {
591	<	threadAssertEquals(added, SIZE);
592	<	}
583	>	q.put(99);
584	>	shouldThrow();
585	>	} catch (InterruptedException success) {}
586	>	assertFalse(Thread.interrupted());
587	>
588	>	pleaseInterrupt.countDown();
589	>	try {
590	>	q.put(99);
591	>	shouldThrow();
592	>	} catch (InterruptedException success) {}
593	>	assertFalse(Thread.interrupted());
594		}});
595
596	<	t.start();
597	<	Thread.sleep(SHORT_DELAY_MS);
596	>	await(pleaseInterrupt);
597	>	assertThreadStaysAlive(t);
598		t.interrupt();
599	<	t.join();
599	>	awaitTermination(t);
600	>	assertEquals(SIZE, q.size());
601	>	assertEquals(0, q.remainingCapacity());
602		}
603
604		/**
605	<	* put blocks waiting for take when full
605	>	* put blocks interruptibly waiting for take when full
606		*/
607		public void testPutWithTake() throws InterruptedException {
608	<	final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
609	<	Thread t = new Thread(new CheckedRunnable() {
610	<	public void realRun() {
611	<	int added = 0;
608	>	final int capacity = 2;
609	>	final LinkedBlockingDeque q = new LinkedBlockingDeque(capacity);
610	>	final CountDownLatch pleaseTake = new CountDownLatch(1);
611	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
612	>	Thread t = newStartedThread(new CheckedRunnable() {
613	>	public void realRun() throws InterruptedException {
614	>	for (int i = 0; i < capacity; i++)
615	>	q.put(i);
616	>	pleaseTake.countDown();
617	>	q.put(86);
618	>
619	>	pleaseInterrupt.countDown();
620		try {
621	<	q.put(new Object());
622	<	++added;
623	<	q.put(new Object());
624	<	++added;
611	<	q.put(new Object());
612	<	++added;
613	<	q.put(new Object());
614	<	++added;
615	<	threadShouldThrow();
616	<	} catch (InterruptedException success) {
617	<	threadAssertTrue(added >= 2);
618	<	}
621	>	q.put(99);
622	>	shouldThrow();
623	>	} catch (InterruptedException success) {}
624	>	assertFalse(Thread.interrupted());
625		}});
626
627	<	t.start();
628	<	Thread.sleep(SHORT_DELAY_MS);
629	<	q.take();
627	>	await(pleaseTake);
628	>	assertEquals(0, q.remainingCapacity());
629	>	assertEquals(0, q.take());
630	>
631	>	await(pleaseInterrupt);
632	>	assertThreadStaysAlive(t);
633		t.interrupt();
634	<	t.join();
634	>	awaitTermination(t);
635	>	assertEquals(0, q.remainingCapacity());
636		}
637
638		/**
#	Line 630 | Line 640 | public class LinkedBlockingDequeTest ext
640		*/
641		public void testTimedOffer() throws InterruptedException {
642		final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
643	<	Thread t = new ThreadShouldThrow(InterruptedException.class) {
643	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
644	>	Thread t = newStartedThread(new CheckedRunnable() {
645		public void realRun() throws InterruptedException {
646		q.put(new Object());
647		q.put(new Object());
648	<	threadAssertFalse(q.offer(new Object(), SHORT_DELAY_MS, MILLISECONDS));
649	<	q.offer(new Object(), LONG_DELAY_MS, MILLISECONDS);
650	<	}};
648	>	long startTime = System.nanoTime();
649	>	assertFalse(q.offer(new Object(), timeoutMillis(), MILLISECONDS));
650	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
651	>	pleaseInterrupt.countDown();
652	>	try {
653	>	q.offer(new Object(), 2 * LONG_DELAY_MS, MILLISECONDS);
654	>	shouldThrow();
655	>	} catch (InterruptedException success) {}
656	>	}});
657
658	<	t.start();
659	<	Thread.sleep(SMALL_DELAY_MS);
658	>	await(pleaseInterrupt);
659	>	assertThreadStaysAlive(t);
660		t.interrupt();
661	<	t.join();
661	>	awaitTermination(t);
662		}
663
664		/**
#	Line 650 | Line 667 | public class LinkedBlockingDequeTest ext
667		public void testTake() throws InterruptedException {
668		LinkedBlockingDeque q = populatedDeque(SIZE);
669		for (int i = 0; i < SIZE; ++i) {
670	<	assertEquals(i, ((Integer)q.take()).intValue());
670	>	assertEquals(i, q.take());
671		}
672		}
673
674		/**
675	<	* take blocks interruptibly when empty
659	<	*/
660	<	public void testTakeFromEmpty() throws InterruptedException {
661	<	final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
662	<	Thread t = new ThreadShouldThrow(InterruptedException.class) {
663	<	public void realRun() throws InterruptedException {
664	<	q.take();
665	<	}};
666	<
667	<	t.start();
668	<	Thread.sleep(SHORT_DELAY_MS);
669	<	t.interrupt();
670	<	t.join();
671	<	}
672	<
673	<	/**
674	<	* Take removes existing elements until empty, then blocks interruptibly
675	>	* take removes existing elements until empty, then blocks interruptibly
676		*/
677		public void testBlockingTake() throws InterruptedException {
678	<	Thread t = new ThreadShouldThrow(InterruptedException.class) {
678	>	final LinkedBlockingDeque q = populatedDeque(SIZE);
679	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
680	>	Thread t = newStartedThread(new CheckedRunnable() {
681		public void realRun() throws InterruptedException {
679	–	LinkedBlockingDeque q = populatedDeque(SIZE);
682		for (int i = 0; i < SIZE; ++i) {
683	<	assertEquals(i, ((Integer)q.take()).intValue());
683	>	assertEquals(i, q.take());
684		}
683	–	q.take();
684	–	}};
685
686	<	t.start();
687	<	Thread.sleep(SHORT_DELAY_MS);
686	>	Thread.currentThread().interrupt();
687	>	try {
688	>	q.take();
689	>	shouldThrow();
690	>	} catch (InterruptedException success) {}
691	>	assertFalse(Thread.interrupted());
692	>
693	>	pleaseInterrupt.countDown();
694	>	try {
695	>	q.take();
696	>	shouldThrow();
697	>	} catch (InterruptedException success) {}
698	>	assertFalse(Thread.interrupted());
699	>	}});
700	>
701	>	await(pleaseInterrupt);
702	>	assertThreadStaysAlive(t);
703		t.interrupt();
704	<	t.join();
704	>	awaitTermination(t);
705		}
706
692	–
707		/**
708		* poll succeeds unless empty
709		*/
710		public void testPoll() {
711		LinkedBlockingDeque q = populatedDeque(SIZE);
712		for (int i = 0; i < SIZE; ++i) {
713	<	assertEquals(i, ((Integer)q.poll()).intValue());
713	>	assertEquals(i, q.poll());
714		}
715		assertNull(q.poll());
716		}
#	Line 707 | Line 721 | public class LinkedBlockingDequeTest ext
721		public void testTimedPoll0() throws InterruptedException {
722		LinkedBlockingDeque q = populatedDeque(SIZE);
723		for (int i = 0; i < SIZE; ++i) {
724	<	assertEquals(i, ((Integer)q.poll(0, MILLISECONDS)).intValue());
724	>	assertEquals(i, q.poll(0, MILLISECONDS));
725		}
726		assertNull(q.poll(0, MILLISECONDS));
727		}
#	Line 718 | Line 732 | public class LinkedBlockingDequeTest ext
732		public void testTimedPoll() throws InterruptedException {
733		LinkedBlockingDeque q = populatedDeque(SIZE);
734		for (int i = 0; i < SIZE; ++i) {
735	<	assertEquals(i, ((Integer)q.poll(SHORT_DELAY_MS, MILLISECONDS)).intValue());
736	<	}
737	<	assertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS));
735	>	long startTime = System.nanoTime();
736	>	assertEquals(i, q.poll(LONG_DELAY_MS, MILLISECONDS));
737	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
738	>	}
739	>	long startTime = System.nanoTime();
740	>	assertNull(q.poll(timeoutMillis(), MILLISECONDS));
741	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
742	>	checkEmpty(q);
743		}
744
745		/**
#	Line 728 | Line 747 | public class LinkedBlockingDequeTest ext
747		* returning timeout status
748		*/
749		public void testInterruptedTimedPoll() throws InterruptedException {
750	<	Thread t = new ThreadShouldThrow(InterruptedException.class) {
750	>	final BlockingQueue<Integer> q = populatedDeque(SIZE);
751	>	final CountDownLatch aboutToWait = new CountDownLatch(1);
752	>	Thread t = newStartedThread(new CheckedRunnable() {
753		public void realRun() throws InterruptedException {
754	<	LinkedBlockingDeque q = populatedDeque(SIZE);
754	>	long startTime = System.nanoTime();
755		for (int i = 0; i < SIZE; ++i) {
756	<	threadAssertEquals(i, ((Integer)q.poll(SHORT_DELAY_MS, MILLISECONDS)).intValue());
756	>	assertEquals(i, (int) q.poll(LONG_DELAY_MS, MILLISECONDS));
757		}
758	<	q.poll(SMALL_DELAY_MS, MILLISECONDS);
759	<	}};
760	<
761	<	t.start();
762	<	Thread.sleep(SHORT_DELAY_MS);
763	<	t.interrupt();
764	<	t.join();
765	<	}
745	<
746	<	/**
747	<	*  timed poll before a delayed offer fails; after offer succeeds;
748	<	*  on interruption throws
749	<	*/
750	<	public void testTimedPollWithOffer() throws InterruptedException {
751	<	final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
752	<	Thread t = new ThreadShouldThrow(InterruptedException.class) {
753	<	public void realRun() throws InterruptedException {
754	<	threadAssertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS));
755	<	q.poll(LONG_DELAY_MS, MILLISECONDS);
756	<	q.poll(LONG_DELAY_MS, MILLISECONDS);
757	<	}};
758	>	aboutToWait.countDown();
759	>	try {
760	>	q.poll(LONG_DELAY_MS, MILLISECONDS);
761	>	shouldThrow();
762	>	} catch (InterruptedException success) {
763	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
764	>	}
765	>	}});
766
767	<	t.start();
768	<	Thread.sleep(SMALL_DELAY_MS);
761	<	assertTrue(q.offer(zero, SHORT_DELAY_MS, MILLISECONDS));
767	>	aboutToWait.await();
768	>	waitForThreadToEnterWaitState(t, LONG_DELAY_MS);
769		t.interrupt();
770	<	t.join();
770	>	awaitTermination(t);
771	>	checkEmpty(q);
772		}
773
766	–
774		/**
775		* putFirst(null) throws NPE
776		*/
777	<	public void testPutFirstNull() throws InterruptedException {
777	>	public void testPutFirstNull() throws InterruptedException {
778	>	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
779		try {
772	–	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
780		q.putFirst(null);
781		shouldThrow();
782		} catch (NullPointerException success) {}
783	<	}
783	>	}
784
785		/**
786		* all elements successfully putFirst are contained
787		*/
788	<	public void testPutFirst() throws InterruptedException {
789	<	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
790	<	for (int i = 0; i < SIZE; ++i) {
791	<	Integer I = new Integer(i);
792	<	q.putFirst(I);
793	<	assertTrue(q.contains(I));
794	<	}
795	<	assertEquals(0, q.remainingCapacity());
788	>	public void testPutFirst() throws InterruptedException {
789	>	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
790	>	for (int i = 0; i < SIZE; ++i) {
791	>	Integer x = new Integer(i);
792	>	q.putFirst(x);
793	>	assertTrue(q.contains(x));
794	>	}
795	>	assertEquals(0, q.remainingCapacity());
796		}
797
798		/**
799		* putFirst blocks interruptibly if full
800		*/
801		public void testBlockingPutFirst() throws InterruptedException {
802	<	Thread t = new Thread(new Runnable() {
803	<	public void run() {
804	<	int added = 0;
805	<	try {
806	<	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
807	<	for (int i = 0; i < SIZE; ++i) {
808	<	q.putFirst(new Integer(i));
809	<	++added;
803	<	}
804	<	q.putFirst(new Integer(SIZE));
805	<	threadShouldThrow();
806	<	} catch (InterruptedException success) {
807	<	threadAssertEquals(added, SIZE);
808	<	}
809	<	}});
802	>	final LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
803	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
804	>	Thread t = newStartedThread(new CheckedRunnable() {
805	>	public void realRun() throws InterruptedException {
806	>	for (int i = 0; i < SIZE; ++i)
807	>	q.putFirst(i);
808	>	assertEquals(SIZE, q.size());
809	>	assertEquals(0, q.remainingCapacity());
810
811	<	t.start();
812	<	Thread.sleep(SHORT_DELAY_MS);
811	>	Thread.currentThread().interrupt();
812	>	try {
813	>	q.putFirst(99);
814	>	shouldThrow();
815	>	} catch (InterruptedException success) {}
816	>	assertFalse(Thread.interrupted());
817	>
818	>	pleaseInterrupt.countDown();
819	>	try {
820	>	q.putFirst(99);
821	>	shouldThrow();
822	>	} catch (InterruptedException success) {}
823	>	assertFalse(Thread.interrupted());
824	>	}});
825	>
826	>	await(pleaseInterrupt);
827	>	assertThreadStaysAlive(t);
828		t.interrupt();
829	<	t.join();
829	>	awaitTermination(t);
830	>	assertEquals(SIZE, q.size());
831	>	assertEquals(0, q.remainingCapacity());
832		}
833
834		/**
835	<	* putFirst blocks waiting for take when full
835	>	* putFirst blocks interruptibly waiting for take when full
836		*/
837		public void testPutFirstWithTake() throws InterruptedException {
838	<	final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
839	<	Thread t = new Thread(new Runnable() {
840	<	public void run() {
841	<	int added = 0;
842	<	try {
843	<	q.putFirst(new Object());
844	<	++added;
845	<	q.putFirst(new Object());
846	<	++added;
847	<	q.putFirst(new Object());
831	<	++added;
832	<	q.putFirst(new Object());
833	<	++added;
834	<	threadShouldThrow();
835	<	} catch (InterruptedException success) {
836	<	threadAssertTrue(added >= 2);
837	<	}
838	<	}
839	<	});
838	>	final int capacity = 2;
839	>	final LinkedBlockingDeque q = new LinkedBlockingDeque(capacity);
840	>	final CountDownLatch pleaseTake = new CountDownLatch(1);
841	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
842	>	Thread t = newStartedThread(new CheckedRunnable() {
843	>	public void realRun() throws InterruptedException {
844	>	for (int i = 0; i < capacity; i++)
845	>	q.putFirst(i);
846	>	pleaseTake.countDown();
847	>	q.putFirst(86);
848
849	<	t.start();
850	<	Thread.sleep(SHORT_DELAY_MS);
851	<	q.take();
849	>	pleaseInterrupt.countDown();
850	>	try {
851	>	q.putFirst(99);
852	>	shouldThrow();
853	>	} catch (InterruptedException success) {}
854	>	assertFalse(Thread.interrupted());
855	>	}});
856	>
857	>	await(pleaseTake);
858	>	assertEquals(0, q.remainingCapacity());
859	>	assertEquals(capacity - 1, q.take());
860	>
861	>	await(pleaseInterrupt);
862	>	assertThreadStaysAlive(t);
863		t.interrupt();
864	<	t.join();
864	>	awaitTermination(t);
865	>	assertEquals(0, q.remainingCapacity());
866		}
867
868		/**
#	Line 850 | Line 870 | public class LinkedBlockingDequeTest ext
870		*/
871		public void testTimedOfferFirst() throws InterruptedException {
872		final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
873	<	Thread t = new ThreadShouldThrow(InterruptedException.class) {
873	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
874	>	Thread t = newStartedThread(new CheckedRunnable() {
875		public void realRun() throws InterruptedException {
876		q.putFirst(new Object());
877		q.putFirst(new Object());
878	<	threadAssertFalse(q.offerFirst(new Object(), SHORT_DELAY_MS, MILLISECONDS));
879	<	q.offerFirst(new Object(), LONG_DELAY_MS, MILLISECONDS);
880	<	}};
878	>	long startTime = System.nanoTime();
879	>	assertFalse(q.offerFirst(new Object(), timeoutMillis(), MILLISECONDS));
880	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
881	>	pleaseInterrupt.countDown();
882	>	try {
883	>	q.offerFirst(new Object(), 2 * LONG_DELAY_MS, MILLISECONDS);
884	>	shouldThrow();
885	>	} catch (InterruptedException success) {}
886	>	}});
887
888	<	t.start();
889	<	Thread.sleep(SMALL_DELAY_MS);
888	>	await(pleaseInterrupt);
889	>	assertThreadStaysAlive(t);
890		t.interrupt();
891	<	t.join();
891	>	awaitTermination(t);
892		}
893
894		/**
#	Line 870 | Line 897 | public class LinkedBlockingDequeTest ext
897		public void testTakeFirst() throws InterruptedException {
898		LinkedBlockingDeque q = populatedDeque(SIZE);
899		for (int i = 0; i < SIZE; ++i) {
900	<	assertEquals(i, ((Integer)q.takeFirst()).intValue());
900	>	assertEquals(i, q.takeFirst());
901		}
902		}
903
904		/**
905	<	* takeFirst blocks interruptibly when empty
905	>	* takeFirst() blocks interruptibly when empty
906		*/
907	<	public void testTakeFirstFromEmpty() throws InterruptedException {
908	<	final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
909	<	Thread t = new ThreadShouldThrow(InterruptedException.class) {
910	<	public void realRun() throws InterruptedException {
911	<	q.takeFirst();
912	<	}};
907	>	public void testTakeFirstFromEmptyBlocksInterruptibly() {
908	>	final BlockingDeque q = new LinkedBlockingDeque();
909	>	final CountDownLatch threadStarted = new CountDownLatch(1);
910	>	Thread t = newStartedThread(new CheckedRunnable() {
911	>	public void realRun() {
912	>	threadStarted.countDown();
913	>	try {
914	>	q.takeFirst();
915	>	shouldThrow();
916	>	} catch (InterruptedException success) {}
917	>	assertFalse(Thread.interrupted());
918	>	}});
919
920	<	t.start();
921	<	Thread.sleep(SHORT_DELAY_MS);
920	>	await(threadStarted);
921	>	assertThreadStaysAlive(t);
922		t.interrupt();
923	<	t.join();
923	>	awaitTermination(t);
924	>	}
925	>
926	>	/**
927	>	* takeFirst() throws InterruptedException immediately if interrupted
928	>	* before waiting
929	>	*/
930	>	public void testTakeFirstFromEmptyAfterInterrupt() {
931	>	final BlockingDeque q = new LinkedBlockingDeque();
932	>	Thread t = newStartedThread(new CheckedRunnable() {
933	>	public void realRun() {
934	>	Thread.currentThread().interrupt();
935	>	try {
936	>	q.takeFirst();
937	>	shouldThrow();
938	>	} catch (InterruptedException success) {}
939	>	assertFalse(Thread.interrupted());
940	>	}});
941	>
942	>	awaitTermination(t);
943	>	}
944	>
945	>	/**
946	>	* takeLast() blocks interruptibly when empty
947	>	*/
948	>	public void testTakeLastFromEmptyBlocksInterruptibly() {
949	>	final BlockingDeque q = new LinkedBlockingDeque();
950	>	final CountDownLatch threadStarted = new CountDownLatch(1);
951	>	Thread t = newStartedThread(new CheckedRunnable() {
952	>	public void realRun() {
953	>	threadStarted.countDown();
954	>	try {
955	>	q.takeLast();
956	>	shouldThrow();
957	>	} catch (InterruptedException success) {}
958	>	assertFalse(Thread.interrupted());
959	>	}});
960	>
961	>	await(threadStarted);
962	>	assertThreadStaysAlive(t);
963	>	t.interrupt();
964	>	awaitTermination(t);
965		}
966
967		/**
968	<	* TakeFirst removes existing elements until empty, then blocks interruptibly
968	>	* takeLast() throws InterruptedException immediately if interrupted
969	>	* before waiting
970	>	*/
971	>	public void testTakeLastFromEmptyAfterInterrupt() {
972	>	final BlockingDeque q = new LinkedBlockingDeque();
973	>	Thread t = newStartedThread(new CheckedRunnable() {
974	>	public void realRun() {
975	>	Thread.currentThread().interrupt();
976	>	try {
977	>	q.takeLast();
978	>	shouldThrow();
979	>	} catch (InterruptedException success) {}
980	>	assertFalse(Thread.interrupted());
981	>	}});
982	>
983	>	awaitTermination(t);
984	>	}
985	>
986	>	/**
987	>	* takeFirst removes existing elements until empty, then blocks interruptibly
988		*/
989		public void testBlockingTakeFirst() throws InterruptedException {
990	<	Thread t = new ThreadShouldThrow(InterruptedException.class) {
990	>	final LinkedBlockingDeque q = populatedDeque(SIZE);
991	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
992	>	Thread t = newStartedThread(new CheckedRunnable() {
993		public void realRun() throws InterruptedException {
899	–	LinkedBlockingDeque q = populatedDeque(SIZE);
994		for (int i = 0; i < SIZE; ++i) {
995	<	assertEquals(i, ((Integer)q.takeFirst()).intValue());
995	>	assertEquals(i, q.takeFirst());
996		}
903	–	q.takeFirst();
904	–	}};
997
998	<	t.start();
999	<	Thread.sleep(SHORT_DELAY_MS);
998	>	Thread.currentThread().interrupt();
999	>	try {
1000	>	q.takeFirst();
1001	>	shouldThrow();
1002	>	} catch (InterruptedException success) {}
1003	>	assertFalse(Thread.interrupted());
1004	>
1005	>	pleaseInterrupt.countDown();
1006	>	try {
1007	>	q.takeFirst();
1008	>	shouldThrow();
1009	>	} catch (InterruptedException success) {}
1010	>	assertFalse(Thread.interrupted());
1011	>	}});
1012	>
1013	>	await(pleaseInterrupt);
1014	>	assertThreadStaysAlive(t);
1015		t.interrupt();
1016	<	t.join();
1016	>	awaitTermination(t);
1017		}
1018
912	–
1019		/**
1020		* timed pollFirst with zero timeout succeeds when non-empty, else times out
1021		*/
1022		public void testTimedPollFirst0() throws InterruptedException {
1023		LinkedBlockingDeque q = populatedDeque(SIZE);
1024		for (int i = 0; i < SIZE; ++i) {
1025	<	assertEquals(i, ((Integer)q.pollFirst(0, MILLISECONDS)).intValue());
1025	>	assertEquals(i, q.pollFirst(0, MILLISECONDS));
1026		}
1027		assertNull(q.pollFirst(0, MILLISECONDS));
1028		}
#	Line 927 | Line 1033 | public class LinkedBlockingDequeTest ext
1033		public void testTimedPollFirst() throws InterruptedException {
1034		LinkedBlockingDeque q = populatedDeque(SIZE);
1035		for (int i = 0; i < SIZE; ++i) {
1036	<	assertEquals(i, ((Integer)q.pollFirst(SHORT_DELAY_MS, MILLISECONDS)).intValue());
1037	<	}
1038	<	assertNull(q.pollFirst(SHORT_DELAY_MS, MILLISECONDS));
1036	>	long startTime = System.nanoTime();
1037	>	assertEquals(i, q.pollFirst(LONG_DELAY_MS, MILLISECONDS));
1038	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1039	>	}
1040	>	long startTime = System.nanoTime();
1041	>	assertNull(q.pollFirst(timeoutMillis(), MILLISECONDS));
1042	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
1043	>	checkEmpty(q);
1044		}
1045
1046		/**
#	Line 937 | Line 1048 | public class LinkedBlockingDequeTest ext
1048		* returning timeout status
1049		*/
1050		public void testInterruptedTimedPollFirst() throws InterruptedException {
1051	<	Thread t = new ThreadShouldThrow(InterruptedException.class) {
1051	>	final LinkedBlockingDeque q = populatedDeque(SIZE);
1052	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
1053	>	Thread t = newStartedThread(new CheckedRunnable() {
1054		public void realRun() throws InterruptedException {
1055	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1055	>	long startTime = System.nanoTime();
1056		for (int i = 0; i < SIZE; ++i) {
1057	<	threadAssertEquals(i, ((Integer)q.pollFirst(SHORT_DELAY_MS, MILLISECONDS)).intValue());
1057	>	assertEquals(i, q.pollFirst(LONG_DELAY_MS, MILLISECONDS));
1058		}
946	–	q.pollFirst(SMALL_DELAY_MS, MILLISECONDS);
947	–	}};
1059
1060	<	t.start();
1061	<	Thread.sleep(SHORT_DELAY_MS);
1060	>	Thread.currentThread().interrupt();
1061	>	try {
1062	>	q.pollFirst(LONG_DELAY_MS, MILLISECONDS);
1063	>	shouldThrow();
1064	>	} catch (InterruptedException success) {}
1065	>	assertFalse(Thread.interrupted());
1066	>
1067	>	pleaseInterrupt.countDown();
1068	>	try {
1069	>	q.pollFirst(LONG_DELAY_MS, MILLISECONDS);
1070	>	shouldThrow();
1071	>	} catch (InterruptedException success) {}
1072	>	assertFalse(Thread.interrupted());
1073	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1074	>	}});
1075	>
1076	>	await(pleaseInterrupt);
1077	>	assertThreadStaysAlive(t);
1078		t.interrupt();
1079	<	t.join();
1079	>	awaitTermination(t);
1080		}
1081
1082		/**
1083	<	*  timed pollFirst before a delayed offerFirst fails; after offerFirst succeeds;
1084	<	*  on interruption throws
1083	>	* timed pollFirst before a delayed offerFirst fails; after offerFirst succeeds;
1084	>	* on interruption throws
1085		*/
1086		public void testTimedPollFirstWithOfferFirst() throws InterruptedException {
1087		final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
1088	<	Thread t = new ThreadShouldThrow(InterruptedException.class) {
1088	>	final CheckedBarrier barrier = new CheckedBarrier(2);
1089	>	Thread t = newStartedThread(new CheckedRunnable() {
1090		public void realRun() throws InterruptedException {
1091	<	threadAssertNull(q.pollFirst(SHORT_DELAY_MS, MILLISECONDS));
1092	<	q.pollFirst(LONG_DELAY_MS, MILLISECONDS);
1093	<	q.pollFirst(LONG_DELAY_MS, MILLISECONDS);
966	<	}};
1091	>	long startTime = System.nanoTime();
1092	>	assertNull(q.pollFirst(timeoutMillis(), MILLISECONDS));
1093	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
1094
1095	<	t.start();
1096	<	Thread.sleep(SMALL_DELAY_MS);
1097	<	assertTrue(q.offerFirst(zero, SHORT_DELAY_MS, MILLISECONDS));
1095	>	barrier.await();
1096	>
1097	>	assertSame(zero, q.pollFirst(LONG_DELAY_MS, MILLISECONDS));
1098	>
1099	>	Thread.currentThread().interrupt();
1100	>	try {
1101	>	q.pollFirst(LONG_DELAY_MS, MILLISECONDS);
1102	>	shouldThrow();
1103	>	} catch (InterruptedException success) {}
1104	>
1105	>	barrier.await();
1106	>	try {
1107	>	q.pollFirst(LONG_DELAY_MS, MILLISECONDS);
1108	>	shouldThrow();
1109	>	} catch (InterruptedException success) {}
1110	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1111	>	}});
1112	>
1113	>	barrier.await();
1114	>	long startTime = System.nanoTime();
1115	>	assertTrue(q.offerFirst(zero, LONG_DELAY_MS, MILLISECONDS));
1116	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1117	>	barrier.await();
1118	>	assertThreadStaysAlive(t);
1119		t.interrupt();
1120	<	t.join();
1120	>	awaitTermination(t);
1121		}
1122
1123		/**
1124		* putLast(null) throws NPE
1125		*/
1126	<	public void testPutLastNull() throws InterruptedException {
1126	>	public void testPutLastNull() throws InterruptedException {
1127	>	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
1128		try {
980	–	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
1129		q.putLast(null);
1130		shouldThrow();
1131		} catch (NullPointerException success) {}
1132	<	}
1132	>	}
1133
1134		/**
1135		* all elements successfully putLast are contained
1136		*/
1137	<	public void testPutLast() throws InterruptedException {
1138	<	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
1139	<	for (int i = 0; i < SIZE; ++i) {
1140	<	Integer I = new Integer(i);
1141	<	q.putLast(I);
1142	<	assertTrue(q.contains(I));
1143	<	}
1144	<	assertEquals(0, q.remainingCapacity());
1137	>	public void testPutLast() throws InterruptedException {
1138	>	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
1139	>	for (int i = 0; i < SIZE; ++i) {
1140	>	Integer x = new Integer(i);
1141	>	q.putLast(x);
1142	>	assertTrue(q.contains(x));
1143	>	}
1144	>	assertEquals(0, q.remainingCapacity());
1145		}
1146
1147		/**
1148		* putLast blocks interruptibly if full
1149		*/
1150		public void testBlockingPutLast() throws InterruptedException {
1151	<	Thread t = new Thread(new 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 success) {
1163	<	threadAssertEquals(added, SIZE);
1164	<	}
1165	<	}});
1166	<	t.start();
1167	<	Thread.sleep(SHORT_DELAY_MS);
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	<	t.join();
1178	>	awaitTermination(t);
1179	>	assertEquals(SIZE, q.size());
1180	>	assertEquals(0, q.remainingCapacity());
1181		}
1182
1183		/**
1184	<	* putLast blocks waiting for take when full
1184	>	* putLast blocks interruptibly waiting for take when full
1185		*/
1186		public void testPutLastWithTake() throws InterruptedException {
1187	<	final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
1188	<	Thread t = new Thread(new 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());
1038	<	++added;
1039	<	q.putLast(new Object());
1040	<	++added;
1041	<	threadShouldThrow();
1042	<	} catch (InterruptedException success) {
1043	<	threadAssertTrue(added >= 2);
1044	<	}
1045	<	}
1046	<	});
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	<	t.start();
1199	<	Thread.sleep(SHORT_DELAY_MS);
1200	<	q.take();
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	<	t.join();
1213	>	awaitTermination(t);
1214	>	assertEquals(0, q.remainingCapacity());
1215		}
1216
1217		/**
#	Line 1057 | Line 1219 | public class LinkedBlockingDequeTest ext
1219		*/
1220		public void testTimedOfferLast() throws InterruptedException {
1221		final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
1222	<	Thread t = new ThreadShouldThrow(InterruptedException.class) {
1222	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
1223	>	Thread t = newStartedThread(new CheckedRunnable() {
1224		public void realRun() throws InterruptedException {
1225		q.putLast(new Object());
1226		q.putLast(new Object());
1227	<	threadAssertFalse(q.offerLast(new Object(), SHORT_DELAY_MS, MILLISECONDS));
1228	<	q.offerLast(new Object(), LONG_DELAY_MS, MILLISECONDS);
1229	<	}};
1227	>	long startTime = System.nanoTime();
1228	>	assertFalse(q.offerLast(new Object(), timeoutMillis(), MILLISECONDS));
1229	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
1230	>	pleaseInterrupt.countDown();
1231	>	try {
1232	>	q.offerLast(new Object(), 2 * LONG_DELAY_MS, MILLISECONDS);
1233	>	shouldThrow();
1234	>	} catch (InterruptedException success) {}
1235	>	}});
1236
1237	<	t.start();
1238	<	Thread.sleep(SMALL_DELAY_MS);
1237	>	await(pleaseInterrupt);
1238	>	assertThreadStaysAlive(t);
1239		t.interrupt();
1240	<	t.join();
1240	>	awaitTermination(t);
1241		}
1242
1243		/**
#	Line 1077 | Line 1246 | public class LinkedBlockingDequeTest ext
1246		public void testTakeLast() throws InterruptedException {
1247		LinkedBlockingDeque q = populatedDeque(SIZE);
1248		for (int i = 0; i < SIZE; ++i) {
1249	<	assertEquals(SIZE-i-1, ((Integer)q.takeLast()).intValue());
1249	>	assertEquals(SIZE - i - 1, q.takeLast());
1250		}
1251		}
1252
1253		/**
1254	<	* takeLast blocks interruptibly when empty
1086	<	*/
1087	<	public void testTakeLastFromEmpty() throws InterruptedException {
1088	<	final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
1089	<	Thread t = new ThreadShouldThrow(InterruptedException.class) {
1090	<	public void realRun() throws InterruptedException {
1091	<	q.takeLast();
1092	<	}};
1093	<
1094	<	t.start();
1095	<	Thread.sleep(SHORT_DELAY_MS);
1096	<	t.interrupt();
1097	<	t.join();
1098	<	}
1099	<
1100	<	/**
1101	<	* TakeLast removes existing elements until empty, then blocks interruptibly
1254	>	* takeLast removes existing elements until empty, then blocks interruptibly
1255		*/
1256		public void testBlockingTakeLast() throws InterruptedException {
1257	<	Thread t = new ThreadShouldThrow(InterruptedException.class) {
1257	>	final LinkedBlockingDeque q = populatedDeque(SIZE);
1258	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
1259	>	Thread t = newStartedThread(new CheckedRunnable() {
1260		public void realRun() throws InterruptedException {
1106	–	LinkedBlockingDeque q = populatedDeque(SIZE);
1261		for (int i = 0; i < SIZE; ++i) {
1262	<	assertEquals(SIZE-i-1, ((Integer)q.takeLast()).intValue());
1262	>	assertEquals(SIZE - i - 1, q.takeLast());
1263		}
1110	–	q.takeLast();
1111	–	}};
1264
1265	<	t.start();
1266	<	Thread.sleep(SHORT_DELAY_MS);
1265	>	Thread.currentThread().interrupt();
1266	>	try {
1267	>	q.takeLast();
1268	>	shouldThrow();
1269	>	} catch (InterruptedException success) {}
1270	>	assertFalse(Thread.interrupted());
1271	>
1272	>	pleaseInterrupt.countDown();
1273	>	try {
1274	>	q.takeLast();
1275	>	shouldThrow();
1276	>	} catch (InterruptedException success) {}
1277	>	assertFalse(Thread.interrupted());
1278	>	}});
1279	>
1280	>	await(pleaseInterrupt);
1281	>	assertThreadStaysAlive(t);
1282		t.interrupt();
1283	<	t.join();
1283	>	awaitTermination(t);
1284		}
1285
1119	–
1286		/**
1287		* timed pollLast with zero timeout succeeds when non-empty, else times out
1288		*/
1289		public void testTimedPollLast0() throws InterruptedException {
1290		LinkedBlockingDeque q = populatedDeque(SIZE);
1291		for (int i = 0; i < SIZE; ++i) {
1292	<	assertEquals(SIZE-i-1, ((Integer)q.pollLast(0, MILLISECONDS)).intValue());
1292	>	assertEquals(SIZE - i - 1, q.pollLast(0, MILLISECONDS));
1293		}
1294		assertNull(q.pollLast(0, MILLISECONDS));
1295		}
#	Line 1134 | Line 1300 | public class LinkedBlockingDequeTest ext
1300		public void testTimedPollLast() throws InterruptedException {
1301		LinkedBlockingDeque q = populatedDeque(SIZE);
1302		for (int i = 0; i < SIZE; ++i) {
1303	<	assertEquals(SIZE-i-1, ((Integer)q.pollLast(SHORT_DELAY_MS, MILLISECONDS)).intValue());
1304	<	}
1305	<	assertNull(q.pollLast(SHORT_DELAY_MS, MILLISECONDS));
1303	>	long startTime = System.nanoTime();
1304	>	assertEquals(SIZE - i - 1, q.pollLast(LONG_DELAY_MS, MILLISECONDS));
1305	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1306	>	}
1307	>	long startTime = System.nanoTime();
1308	>	assertNull(q.pollLast(timeoutMillis(), MILLISECONDS));
1309	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
1310	>	checkEmpty(q);
1311		}
1312
1313		/**
#	Line 1144 | Line 1315 | public class LinkedBlockingDequeTest ext
1315		* returning timeout status
1316		*/
1317		public void testInterruptedTimedPollLast() throws InterruptedException {
1318	<	Thread t = new ThreadShouldThrow(InterruptedException.class) {
1318	>	final LinkedBlockingDeque q = populatedDeque(SIZE);
1319	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
1320	>	Thread t = newStartedThread(new CheckedRunnable() {
1321		public void realRun() throws InterruptedException {
1322	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1322	>	long startTime = System.nanoTime();
1323		for (int i = 0; i < SIZE; ++i) {
1324	<	threadAssertEquals(SIZE-i-1, ((Integer)q.pollLast(SHORT_DELAY_MS, MILLISECONDS)).intValue());
1324	>	assertEquals(SIZE - i - 1,
1325	>	q.pollLast(LONG_DELAY_MS, MILLISECONDS));
1326		}
1153	–	q.pollLast(SMALL_DELAY_MS, MILLISECONDS);
1154	–	}};
1327
1328	<	t.start();
1329	<	Thread.sleep(SHORT_DELAY_MS);
1328	>	Thread.currentThread().interrupt();
1329	>	try {
1330	>	q.pollLast(LONG_DELAY_MS, MILLISECONDS);
1331	>	shouldThrow();
1332	>	} catch (InterruptedException success) {}
1333	>	assertFalse(Thread.interrupted());
1334	>
1335	>	pleaseInterrupt.countDown();
1336	>	try {
1337	>	q.pollLast(LONG_DELAY_MS, MILLISECONDS);
1338	>	shouldThrow();
1339	>	} catch (InterruptedException success) {}
1340	>	assertFalse(Thread.interrupted());
1341	>
1342	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1343	>	}});
1344	>
1345	>	await(pleaseInterrupt);
1346	>	assertThreadStaysAlive(t);
1347		t.interrupt();
1348	<	t.join();
1348	>	awaitTermination(t);
1349	>	checkEmpty(q);
1350		}
1351
1352		/**
1353	<	*  timed poll before a delayed offerLast fails; after offerLast succeeds;
1354	<	*  on interruption throws
1353	>	* timed poll before a delayed offerLast fails; after offerLast succeeds;
1354	>	* on interruption throws
1355		*/
1356		public void testTimedPollWithOfferLast() throws InterruptedException {
1357		final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
1358	<	Thread t = new Thread(new CheckedRunnable() {
1358	>	final CheckedBarrier barrier = new CheckedBarrier(2);
1359	>	Thread t = newStartedThread(new CheckedRunnable() {
1360		public void realRun() throws InterruptedException {
1361	<	assertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS));
1361	>	long startTime = System.nanoTime();
1362	>	assertNull(q.poll(timeoutMillis(), MILLISECONDS));
1363	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
1364	>
1365	>	barrier.await();
1366	>
1367		assertSame(zero, q.poll(LONG_DELAY_MS, MILLISECONDS));
1368	+
1369	+	Thread.currentThread().interrupt();
1370	+	try {
1371	+	q.poll(LONG_DELAY_MS, MILLISECONDS);
1372	+	shouldThrow();
1373	+	} catch (InterruptedException success) {}
1374	+	assertFalse(Thread.interrupted());
1375	+
1376	+	barrier.await();
1377		try {
1378		q.poll(LONG_DELAY_MS, MILLISECONDS);
1379		shouldThrow();
1380		} catch (InterruptedException success) {}
1381	+	assertFalse(Thread.interrupted());
1382		}});
1383
1384	<	t.start();
1385	<	Thread.sleep(SMALL_DELAY_MS);
1386	<	assertTrue(q.offerLast(zero, SHORT_DELAY_MS, MILLISECONDS));
1384	>	barrier.await();
1385	>	long startTime = System.nanoTime();
1386	>	assertTrue(q.offerLast(zero, LONG_DELAY_MS, MILLISECONDS));
1387	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1388	>
1389	>	barrier.await();
1390	>	assertThreadStaysAlive(t);
1391		t.interrupt();
1392	<	t.join();
1392	>	awaitTermination(t);
1393		}
1394
1185	–
1395		/**
1396		* element returns next element, or throws NSEE if empty
1397		*/
1398		public void testElement() {
1399		LinkedBlockingDeque q = populatedDeque(SIZE);
1400		for (int i = 0; i < SIZE; ++i) {
1401	<	assertEquals(i, ((Integer)q.element()).intValue());
1401	>	assertEquals(i, q.element());
1402		q.poll();
1403		}
1404		try {
#	Line 1199 | Line 1408 | public class LinkedBlockingDequeTest ext
1408		}
1409
1410		/**
1202	–	* remove(x) removes x and returns true if present
1203	–	*/
1204	–	public void testRemoveElement() {
1205	–	LinkedBlockingDeque q = populatedDeque(SIZE);
1206	–	for (int i = 1; i < SIZE; i+=2) {
1207	–	assertTrue(q.remove(new Integer(i)));
1208	–	}
1209	–	for (int i = 0; i < SIZE; i+=2) {
1210	–	assertTrue(q.remove(new Integer(i)));
1211	–	assertFalse(q.remove(new Integer(i+1)));
1212	–	}
1213	–	assertTrue(q.isEmpty());
1214	–	}
1215	–
1216	–	/**
1411		* contains(x) reports true when elements added but not yet removed
1412		*/
1413		public void testContains() {
#	Line 1269 | Line 1463 | public class LinkedBlockingDequeTest ext
1463		assertTrue(changed);
1464
1465		assertTrue(q.containsAll(p));
1466	<	assertEquals(SIZE-i, q.size());
1466	>	assertEquals(SIZE - i, q.size());
1467		p.remove();
1468		}
1469		}
#	Line 1282 | Line 1476 | public class LinkedBlockingDequeTest ext
1476		LinkedBlockingDeque q = populatedDeque(SIZE);
1477		LinkedBlockingDeque p = populatedDeque(i);
1478		assertTrue(q.removeAll(p));
1479	<	assertEquals(SIZE-i, q.size());
1479	>	assertEquals(SIZE - i, q.size());
1480		for (int j = 0; j < i; ++j) {
1481	<	Integer I = (Integer)(p.remove());
1482	<	assertFalse(q.contains(I));
1481	>	Integer x = (Integer)(p.remove());
1482	>	assertFalse(q.contains(x));
1483		}
1484		}
1485		}
1486
1487		/**
1488	<	* toArray contains all elements
1488	>	* toArray contains all elements in FIFO order
1489		*/
1490	<	public void testToArray() throws InterruptedException{
1490	>	public void testToArray() throws InterruptedException {
1491		LinkedBlockingDeque q = populatedDeque(SIZE);
1492		Object[] o = q.toArray();
1493		for (int i = 0; i < o.length; i++)
1494	<	assertEquals(o[i], q.take());
1494	>	assertSame(o[i], q.poll());
1495		}
1496
1497		/**
1498	<	* toArray(a) contains all elements
1498	>	* toArray(a) contains all elements in FIFO order
1499		*/
1500	<	public void testToArray2() throws InterruptedException {
1501	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1500	>	public void testToArray2() {
1501	>	LinkedBlockingDeque<Integer> q = populatedDeque(SIZE);
1502		Integer[] ints = new Integer[SIZE];
1503	<	ints = (Integer[])q.toArray(ints);
1503	>	Integer[] array = q.toArray(ints);
1504	>	assertSame(ints, array);
1505		for (int i = 0; i < ints.length; i++)
1506	<	assertEquals(ints[i], q.take());
1506	>	assertSame(ints[i], q.remove());
1507		}
1508
1509		/**
1510	<	* toArray(null) throws NPE
1316	<	*/
1317	<	public void testToArray_BadArg() {
1318	<	try {
1319	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1320	<	Object o[] = q.toArray(null);
1321	<	shouldThrow();
1322	<	} catch (NullPointerException success) {}
1323	<	}
1324	<
1325	<	/**
1326	<	* toArray with incompatible array type throws CCE
1510	>	* toArray(incompatible array type) throws ArrayStoreException
1511		*/
1512		public void testToArray1_BadArg() {
1513	+	LinkedBlockingDeque q = populatedDeque(SIZE);
1514		try {
1515	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1331	<	Object o[] = q.toArray(new String[10] );
1515	>	q.toArray(new String[10]);
1516		shouldThrow();
1517		} catch (ArrayStoreException success) {}
1518		}
1519
1336	–
1520		/**
1521		* iterator iterates through all elements
1522		*/
1523		public void testIterator() throws InterruptedException {
1524		LinkedBlockingDeque q = populatedDeque(SIZE);
1525		Iterator it = q.iterator();
1526	<	while (it.hasNext()) {
1526	>	int i;
1527	>	for (i = 0; it.hasNext(); i++)
1528	>	assertTrue(q.contains(it.next()));
1529	>	assertEquals(i, SIZE);
1530	>	assertIteratorExhausted(it);
1531	>
1532	>	it = q.iterator();
1533	>	for (i = 0; it.hasNext(); i++)
1534		assertEquals(it.next(), q.take());
1535	<	}
1535	>	assertEquals(i, SIZE);
1536	>	assertIteratorExhausted(it);
1537	>	}
1538	>
1539	>	/**
1540	>	* iterator of empty collection has no elements
1541	>	*/
1542	>	public void testEmptyIterator() {
1543	>	Deque c = new LinkedBlockingDeque();
1544	>	assertIteratorExhausted(c.iterator());
1545	>	assertIteratorExhausted(c.descendingIterator());
1546		}
1547
1548		/**
1549		* iterator.remove removes current element
1550		*/
1551	<	public void testIteratorRemove () {
1551	>	public void testIteratorRemove() {
1552		final LinkedBlockingDeque q = new LinkedBlockingDeque(3);
1553		q.add(two);
1554		q.add(one);
#	Line 1359 | Line 1559 | public class LinkedBlockingDequeTest ext
1559		it.remove();
1560
1561		it = q.iterator();
1562	<	assertEquals(it.next(), one);
1563	<	assertEquals(it.next(), three);
1562	>	assertSame(it.next(), one);
1563	>	assertSame(it.next(), three);
1564		assertFalse(it.hasNext());
1565		}
1566
1367	–
1567		/**
1568		* iterator ordering is FIFO
1569		*/
#	Line 1376 | Line 1575 | public class LinkedBlockingDequeTest ext
1575		assertEquals(0, q.remainingCapacity());
1576		int k = 0;
1577		for (Iterator it = q.iterator(); it.hasNext();) {
1578	<	int i = ((Integer)(it.next())).intValue();
1380	<	assertEquals(++k, i);
1578	>	assertEquals(++k, it.next());
1579		}
1580		assertEquals(3, k);
1581		}
#	Line 1385 | Line 1583 | public class LinkedBlockingDequeTest ext
1583		/**
1584		* Modifications do not cause iterators to fail
1585		*/
1586	<	public void testWeaklyConsistentIteration () {
1586	>	public void testWeaklyConsistentIteration() {
1587		final LinkedBlockingDeque q = new LinkedBlockingDeque(3);
1588		q.add(one);
1589		q.add(two);
#	Line 1397 | Line 1595 | public class LinkedBlockingDequeTest ext
1595		assertEquals(0, q.size());
1596		}
1597
1400	–
1598		/**
1599	<	*  Descending iterator iterates through all elements
1599	>	* Descending iterator iterates through all elements
1600		*/
1601		public void testDescendingIterator() {
1602		LinkedBlockingDeque q = populatedDeque(SIZE);
#	Line 1418 | Line 1615 | public class LinkedBlockingDequeTest ext
1615		}
1616
1617		/**
1618	<	*  Descending iterator ordering is reverse FIFO
1618	>	* Descending iterator ordering is reverse FIFO
1619		*/
1620		public void testDescendingIteratorOrdering() {
1621		final LinkedBlockingDeque q = new LinkedBlockingDeque();
#	Line 1428 | Line 1625 | public class LinkedBlockingDequeTest ext
1625		q.add(new Integer(1));
1626		int k = 0;
1627		for (Iterator it = q.descendingIterator(); it.hasNext();) {
1628	<	int i = ((Integer)(it.next())).intValue();
1432	<	assertEquals(++k, i);
1628	>	assertEquals(++k, it.next());
1629		}
1630
1631		assertEquals(3, k);
#	Line 1442 | Line 1638 | public class LinkedBlockingDequeTest ext
1638		/**
1639		* descendingIterator.remove removes current element
1640		*/
1641	<	public void testDescendingIteratorRemove () {
1641	>	public void testDescendingIteratorRemove() {
1642		final LinkedBlockingDeque q = new LinkedBlockingDeque();
1643		for (int iters = 0; iters < 100; ++iters) {
1644		q.add(new Integer(3));
#	Line 1461 | Line 1657 | public class LinkedBlockingDequeTest ext
1657		}
1658		}
1659
1464	–
1660		/**
1661		* toString contains toStrings of elements
1662		*/
#	Line 1469 | Line 1664 | public class LinkedBlockingDequeTest ext
1664		LinkedBlockingDeque q = populatedDeque(SIZE);
1665		String s = q.toString();
1666		for (int i = 0; i < SIZE; ++i) {
1667	<	assertTrue(s.indexOf(String.valueOf(i)) >= 0);
1667	>	assertTrue(s.contains(String.valueOf(i)));
1668		}
1669		}
1670
1476	–
1671		/**
1672		* offer transfers elements across Executor tasks
1673		*/
#	Line 1481 | Line 1675 | public class LinkedBlockingDequeTest ext
1675		final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
1676		q.add(one);
1677		q.add(two);
1678	<	ExecutorService executor = Executors.newFixedThreadPool(2);
1679	<	executor.execute(new CheckedRunnable() {
1680	<	public void realRun() throws InterruptedException {
1681	<	threadAssertFalse(q.offer(three));
1682	<	threadAssertTrue(q.offer(three, MEDIUM_DELAY_MS, MILLISECONDS));
1683	<	threadAssertEquals(0, q.remainingCapacity());
1684	<	}});
1685	<
1686	<	executor.execute(new CheckedRunnable() {
1687	<	public void realRun() throws InterruptedException {
1494	<	Thread.sleep(SMALL_DELAY_MS);
1495	<	threadAssertEquals(one, q.take());
1496	<	}});
1678	>	final CheckedBarrier threadsStarted = new CheckedBarrier(2);
1679	>	final ExecutorService executor = Executors.newFixedThreadPool(2);
1680	>	try (PoolCleaner cleaner = cleaner(executor)) {
1681	>	executor.execute(new CheckedRunnable() {
1682	>	public void realRun() throws InterruptedException {
1683	>	assertFalse(q.offer(three));
1684	>	threadsStarted.await();
1685	>	assertTrue(q.offer(three, LONG_DELAY_MS, MILLISECONDS));
1686	>	assertEquals(0, q.remainingCapacity());
1687	>	}});
1688
1689	<	joinPool(executor);
1689	>	executor.execute(new CheckedRunnable() {
1690	>	public void realRun() throws InterruptedException {
1691	>	threadsStarted.await();
1692	>	assertSame(one, q.take());
1693	>	}});
1694	>	}
1695		}
1696
1697		/**
1698	<	* poll retrieves elements across Executor threads
1698	>	* timed poll retrieves elements across Executor threads
1699		*/
1700		public void testPollInExecutor() {
1701		final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
1702	<	ExecutorService executor = Executors.newFixedThreadPool(2);
1703	<	executor.execute(new CheckedRunnable() {
1704	<	public void realRun() throws InterruptedException {
1705	<	threadAssertNull(q.poll());
1706	<	threadAssertTrue(null != q.poll(MEDIUM_DELAY_MS, MILLISECONDS));
1707	<	threadAssertTrue(q.isEmpty());
1708	<	}});
1709	<
1710	<	executor.execute(new CheckedRunnable() {
1711	<	public void realRun() throws InterruptedException {
1516	<	Thread.sleep(SMALL_DELAY_MS);
1517	<	q.put(one);
1518	<	}});
1702	>	final CheckedBarrier threadsStarted = new CheckedBarrier(2);
1703	>	final ExecutorService executor = Executors.newFixedThreadPool(2);
1704	>	try (PoolCleaner cleaner = cleaner(executor)) {
1705	>	executor.execute(new CheckedRunnable() {
1706	>	public void realRun() throws InterruptedException {
1707	>	assertNull(q.poll());
1708	>	threadsStarted.await();
1709	>	assertSame(one, q.poll(LONG_DELAY_MS, MILLISECONDS));
1710	>	checkEmpty(q);
1711	>	}});
1712
1713	<	joinPool(executor);
1713	>	executor.execute(new CheckedRunnable() {
1714	>	public void realRun() throws InterruptedException {
1715	>	threadsStarted.await();
1716	>	q.put(one);
1717	>	}});
1718	>	}
1719		}
1720
1721		/**
1722		* A deserialized serialized deque has same elements in same order
1723		*/
1724		public void testSerialization() throws Exception {
1725	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1726	<
1529	<	ByteArrayOutputStream bout = new ByteArrayOutputStream(10000);
1530	<	ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout));
1531	<	out.writeObject(q);
1532	<	out.close();
1725	>	Queue x = populatedDeque(SIZE);
1726	>	Queue y = serialClone(x);
1727
1728	<	ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray());
1729	<	ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin));
1730	<	LinkedBlockingDeque r = (LinkedBlockingDeque)in.readObject();
1731	<	assertEquals(q.size(), r.size());
1732	<	while (!q.isEmpty())
1733	<	assertEquals(q.remove(), r.remove());
1734	<	}
1735	<
1736	<	/**
1543	<	* drainTo(null) throws NPE
1544	<	*/
1545	<	public void testDrainToNull() {
1546	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1547	<	try {
1548	<	q.drainTo(null);
1549	<	shouldThrow();
1550	<	} catch (NullPointerException success) {}
1551	<	}
1552	<
1553	<	/**
1554	<	* drainTo(this) throws IAE
1555	<	*/
1556	<	public void testDrainToSelf() {
1557	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1558	<	try {
1559	<	q.drainTo(q);
1560	<	shouldThrow();
1561	<	} catch (IllegalArgumentException success) {}
1728	>	assertNotSame(y, x);
1729	>	assertEquals(x.size(), y.size());
1730	>	assertEquals(x.toString(), y.toString());
1731	>	assertTrue(Arrays.equals(x.toArray(), y.toArray()));
1732	>	while (!x.isEmpty()) {
1733	>	assertFalse(y.isEmpty());
1734	>	assertEquals(x.remove(), y.remove());
1735	>	}
1736	>	assertTrue(y.isEmpty());
1737		}
1738
1739		/**
#	Line 1568 | Line 1743 | public class LinkedBlockingDequeTest ext
1743		LinkedBlockingDeque q = populatedDeque(SIZE);
1744		ArrayList l = new ArrayList();
1745		q.drainTo(l);
1746	<	assertEquals(q.size(), 0);
1747	<	assertEquals(l.size(), SIZE);
1746	>	assertEquals(0, q.size());
1747	>	assertEquals(SIZE, l.size());
1748		for (int i = 0; i < SIZE; ++i)
1749		assertEquals(l.get(i), new Integer(i));
1750		q.add(zero);
#	Line 1579 | Line 1754 | public class LinkedBlockingDequeTest ext
1754		assertTrue(q.contains(one));
1755		l.clear();
1756		q.drainTo(l);
1757	<	assertEquals(q.size(), 0);
1758	<	assertEquals(l.size(), 2);
1757	>	assertEquals(0, q.size());
1758	>	assertEquals(2, l.size());
1759		for (int i = 0; i < 2; ++i)
1760		assertEquals(l.get(i), new Integer(i));
1761		}
#	Line 1592 | Line 1767 | public class LinkedBlockingDequeTest ext
1767		final LinkedBlockingDeque q = populatedDeque(SIZE);
1768		Thread t = new Thread(new CheckedRunnable() {
1769		public void realRun() throws InterruptedException {
1770	<	q.put(new Integer(SIZE+1));
1770	>	q.put(new Integer(SIZE + 1));
1771		}});
1772
1773		t.start();
#	Line 1606 | Line 1781 | public class LinkedBlockingDequeTest ext
1781		}
1782
1783		/**
1784	<	* drainTo(null, n) throws NPE
1610	<	*/
1611	<	public void testDrainToNullN() {
1612	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1613	<	try {
1614	<	q.drainTo(null, 0);
1615	<	shouldThrow();
1616	<	} catch (NullPointerException success) {}
1617	<	}
1618	<
1619	<	/**
1620	<	* drainTo(this, n) throws IAE
1621	<	*/
1622	<	public void testDrainToSelfN() {
1623	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1624	<	try {
1625	<	q.drainTo(q, 0);
1626	<	shouldThrow();
1627	<	} catch (IllegalArgumentException success) {}
1628	<	}
1629	<
1630	<	/**
1631	<	* drainTo(c, n) empties first max {n, size} elements of deque into c
1784	>	* drainTo(c, n) empties first min(n, size) elements of queue into c
1785		*/
1786		public void testDrainToN() {
1787		LinkedBlockingDeque q = new LinkedBlockingDeque();
#	Line 1637 | Line 1790 | public class LinkedBlockingDequeTest ext
1790		assertTrue(q.offer(new Integer(j)));
1791		ArrayList l = new ArrayList();
1792		q.drainTo(l, i);
1793	<	int k = (i < SIZE)? i : SIZE;
1794	<	assertEquals(l.size(), k);
1795	<	assertEquals(q.size(), SIZE-k);
1793	>	int k = (i < SIZE) ? i : SIZE;
1794	>	assertEquals(k, l.size());
1795	>	assertEquals(SIZE - k, q.size());
1796		for (int j = 0; j < k; ++j)
1797		assertEquals(l.get(j), new Integer(j));
1798	<	while (q.poll() != null) ;
1798	>	do {} while (q.poll() != null);
1799	>	}
1800	>	}
1801	>
1802	>	/**
1803	>	* remove(null), contains(null) always return false
1804	>	*/
1805	>	public void testNeverContainsNull() {
1806	>	Deque<?>[] qs = {
1807	>	new LinkedBlockingDeque<Object>(),
1808	>	populatedDeque(2),
1809	>	};
1810	>
1811	>	for (Deque<?> q : qs) {
1812	>	assertFalse(q.contains(null));
1813	>	assertFalse(q.remove(null));
1814	>	assertFalse(q.removeFirstOccurrence(null));
1815	>	assertFalse(q.removeLastOccurrence(null));
1816		}
1817		}
1818

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