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Comparing jsr166/src/test/tck/LinkedBlockingDequeTest.java (file contents):
Revision 1.4 by jsr166, Mon Nov 2 20:28:31 2009 UTC vs.
Revision 1.86 by jsr166, Thu Sep 5 21:11:13 2019 UTC

#	Line 1 | Line 1
1		/*
2		* Written by Doug Lea with assistance from members of JCP JSR-166
3		* Expert Group and released to the public domain, as explained at
4	<	* http://creativecommons.org/licenses/publicdomain
4	>	* http://creativecommons.org/publicdomain/zero/1.0/
5		*/
6
7	<	import junit.framework.*;
8	<	import java.util.*;
9	<	import java.util.concurrent.*;
10	<	import java.io.*;
7	>	import static java.util.concurrent.TimeUnit.MILLISECONDS;
8	>
9	>	import java.util.ArrayList;
10	>	import java.util.Arrays;
11	>	import java.util.Collection;
12	>	import java.util.Deque;
13	>	import java.util.Iterator;
14	>	import java.util.NoSuchElementException;
15	>	import java.util.Queue;
16	>	import java.util.concurrent.BlockingDeque;
17	>	import java.util.concurrent.BlockingQueue;
18	>	import java.util.concurrent.CountDownLatch;
19	>	import java.util.concurrent.Executors;
20	>	import java.util.concurrent.ExecutorService;
21	>	import java.util.concurrent.LinkedBlockingDeque;
22	>
23	>	import junit.framework.Test;
24
25		public class LinkedBlockingDequeTest extends JSR166TestCase {
26	+
27	+	public static class Unbounded extends BlockingQueueTest {
28	+	protected BlockingQueue emptyCollection() {
29	+	return new LinkedBlockingDeque();
30	+	}
31	+	}
32	+
33	+	public static class Bounded extends BlockingQueueTest {
34	+	protected BlockingQueue emptyCollection() {
35	+	return new LinkedBlockingDeque(SIZE);
36	+	}
37	+	}
38	+
39		public static void main(String[] args) {
40	<	junit.textui.TestRunner.run (suite());
40	>	main(suite(), args);
41		}
42
43		public static Test suite() {
44	<	return new TestSuite(LinkedBlockingDequeTest.class);
44	>	class Implementation implements CollectionImplementation {
45	>	public Class<?> klazz() { return LinkedBlockingDeque.class; }
46	>	public Collection emptyCollection() { return new LinkedBlockingDeque(); }
47	>	public Object makeElement(int i) { return i; }
48	>	public boolean isConcurrent() { return true; }
49	>	public boolean permitsNulls() { return false; }
50	>	}
51	>	return newTestSuite(LinkedBlockingDequeTest.class,
52	>	new Unbounded().testSuite(),
53	>	new Bounded().testSuite(),
54	>	CollectionTest.testSuite(new Implementation()));
55		}
56
57		/**
58	<	* Create a deque of given size containing consecutive
59	<	* Integers 0 ... n.
60	<	*/
61	<	private LinkedBlockingDeque populatedDeque(int n) {
62	<	LinkedBlockingDeque q = new LinkedBlockingDeque(n);
58	>	* Returns a new deque of given size containing consecutive
59	>	* Integers 0 ... n - 1.
60	>	*/
61	>	private static LinkedBlockingDeque<Integer> populatedDeque(int n) {
62	>	LinkedBlockingDeque<Integer> q =
63	>	new LinkedBlockingDeque<Integer>(n);
64		assertTrue(q.isEmpty());
65	<	for(int i = 0; i < n; i++)
66	<	assertTrue(q.offer(new Integer(i)));
65	>	for (int i = 0; i < n; i++)
66	>	assertTrue(q.offer(new Integer(i)));
67		assertFalse(q.isEmpty());
68		assertEquals(0, q.remainingCapacity());
69	<	assertEquals(n, q.size());
69	>	assertEquals(n, q.size());
70	>	assertEquals((Integer) 0, q.peekFirst());
71	>	assertEquals((Integer) (n - 1), q.peekLast());
72		return q;
73		}
74
#	Line 53 | Line 92 | public class LinkedBlockingDequeTest ext
92		public void testSize() {
93		LinkedBlockingDeque q = populatedDeque(SIZE);
94		for (int i = 0; i < SIZE; ++i) {
95	<	assertEquals(SIZE-i, q.size());
95	>	assertEquals(SIZE - i, q.size());
96		q.removeFirst();
97		}
98		for (int i = 0; i < SIZE; ++i) {
#	Line 63 | Line 102 | public class LinkedBlockingDequeTest ext
102		}
103
104		/**
105	<	* offer(null) throws NPE
105	>	* offerFirst(null) throws NullPointerException
106		*/
107		public void testOfferFirstNull() {
108	<	try {
109	<	LinkedBlockingDeque q = new LinkedBlockingDeque();
108	>	LinkedBlockingDeque q = new LinkedBlockingDeque();
109	>	try {
110		q.offerFirst(null);
111		shouldThrow();
112	<	} catch (NullPointerException success) {
113	<	}
112	>	} catch (NullPointerException success) {}
113	>	}
114	>
115	>	/**
116	>	* offerLast(null) throws NullPointerException
117	>	*/
118	>	public void testOfferLastNull() {
119	>	LinkedBlockingDeque q = new LinkedBlockingDeque();
120	>	try {
121	>	q.offerLast(null);
122	>	shouldThrow();
123	>	} catch (NullPointerException success) {}
124		}
125
126		/**
#	Line 93 | Line 142 | public class LinkedBlockingDequeTest ext
142		}
143
144		/**
145	<	*  pollFirst succeeds unless empty
145	>	* pollFirst succeeds unless empty
146		*/
147		public void testPollFirst() {
148		LinkedBlockingDeque q = populatedDeque(SIZE);
149		for (int i = 0; i < SIZE; ++i) {
150	<	assertEquals(i, ((Integer)q.pollFirst()).intValue());
150	>	assertEquals(i, q.pollFirst());
151		}
152	<	assertNull(q.pollFirst());
152	>	assertNull(q.pollFirst());
153		}
154
155		/**
156	<	*  pollLast succeeds unless empty
156	>	* pollLast succeeds unless empty
157		*/
158		public void testPollLast() {
159		LinkedBlockingDeque q = populatedDeque(SIZE);
160	<	for (int i = SIZE-1; i >= 0; --i) {
161	<	assertEquals(i, ((Integer)q.pollLast()).intValue());
160	>	for (int i = SIZE - 1; i >= 0; --i) {
161	>	assertEquals(i, q.pollLast());
162		}
163	<	assertNull(q.pollLast());
163	>	assertNull(q.pollLast());
164		}
165
166		/**
167	<	*  peekFirst returns next element, or null if empty
167	>	* peekFirst returns next element, or null if empty
168		*/
169		public void testPeekFirst() {
170		LinkedBlockingDeque q = populatedDeque(SIZE);
171		for (int i = 0; i < SIZE; ++i) {
172	<	assertEquals(i, ((Integer)q.peekFirst()).intValue());
173	<	q.pollFirst();
172	>	assertEquals(i, q.peekFirst());
173	>	assertEquals(i, q.pollFirst());
174		assertTrue(q.peekFirst() == null ||
175	<	i != ((Integer)q.peekFirst()).intValue());
175	>	!q.peekFirst().equals(i));
176		}
177	<	assertNull(q.peekFirst());
177	>	assertNull(q.peekFirst());
178		}
179
180		/**
181	<	*  peek returns next element, or null if empty
181	>	* peek returns next element, or null if empty
182		*/
183		public void testPeek() {
184		LinkedBlockingDeque q = populatedDeque(SIZE);
185		for (int i = 0; i < SIZE; ++i) {
186	<	assertEquals(i, ((Integer)q.peek()).intValue());
187	<	q.pollFirst();
186	>	assertEquals(i, q.peek());
187	>	assertEquals(i, q.pollFirst());
188		assertTrue(q.peek() == null ||
189	<	i != ((Integer)q.peek()).intValue());
189	>	!q.peek().equals(i));
190		}
191	<	assertNull(q.peek());
191	>	assertNull(q.peek());
192		}
193
194		/**
195	<	*  peekLast returns next element, or null if empty
195	>	* peekLast returns next element, or null if empty
196		*/
197		public void testPeekLast() {
198		LinkedBlockingDeque q = populatedDeque(SIZE);
199	<	for (int i = SIZE-1; i >= 0; --i) {
200	<	assertEquals(i, ((Integer)q.peekLast()).intValue());
201	<	q.pollLast();
199	>	for (int i = SIZE - 1; i >= 0; --i) {
200	>	assertEquals(i, q.peekLast());
201	>	assertEquals(i, q.pollLast());
202		assertTrue(q.peekLast() == null ||
203	<	i != ((Integer)q.peekLast()).intValue());
203	>	!q.peekLast().equals(i));
204		}
205	<	assertNull(q.peekLast());
205	>	assertNull(q.peekLast());
206		}
207
208		/**
209	<	* getFirst returns next getFirst, or throws NSEE if empty
209	>	* getFirst() returns first element, or throws NSEE if empty
210		*/
211		public void testFirstElement() {
212		LinkedBlockingDeque q = populatedDeque(SIZE);
213		for (int i = 0; i < SIZE; ++i) {
214	<	assertEquals(i, ((Integer)q.getFirst()).intValue());
215	<	q.pollFirst();
214	>	assertEquals(i, q.getFirst());
215	>	assertEquals(i, q.pollFirst());
216		}
217		try {
218		q.getFirst();
219		shouldThrow();
220	<	}
221	<	catch (NoSuchElementException success) {}
220	>	} catch (NoSuchElementException success) {}
221	>	assertNull(q.peekFirst());
222		}
223
224		/**
225	<	*  getLast returns next element, or throws NSEE if empty
225	>	* getLast() returns last element, or throws NSEE if empty
226		*/
227		public void testLastElement() {
228		LinkedBlockingDeque q = populatedDeque(SIZE);
229	<	for (int i = SIZE-1; i >= 0; --i) {
230	<	assertEquals(i, ((Integer)q.getLast()).intValue());
231	<	q.pollLast();
229	>	for (int i = SIZE - 1; i >= 0; --i) {
230	>	assertEquals(i, q.getLast());
231	>	assertEquals(i, q.pollLast());
232		}
233		try {
234		q.getLast();
235		shouldThrow();
236	<	}
237	<	catch (NoSuchElementException success) {}
189	<	assertNull(q.peekLast());
236	>	} catch (NoSuchElementException success) {}
237	>	assertNull(q.peekLast());
238		}
239
240		/**
241	<	*  removeFirst removes next element, or throws NSEE if empty
241	>	* removeFirst() removes first element, or throws NSEE if empty
242		*/
243		public void testRemoveFirst() {
244		LinkedBlockingDeque q = populatedDeque(SIZE);
245		for (int i = 0; i < SIZE; ++i) {
246	<	assertEquals(i, ((Integer)q.removeFirst()).intValue());
246	>	assertEquals(i, q.removeFirst());
247		}
248		try {
249		q.removeFirst();
250		shouldThrow();
251	<	} catch (NoSuchElementException success){
252	<	}
251	>	} catch (NoSuchElementException success) {}
252	>	assertNull(q.peekFirst());
253	>	}
254	>
255	>	/**
256	>	* removeLast() removes last element, or throws NSEE if empty
257	>	*/
258	>	public void testRemoveLast() {
259	>	LinkedBlockingDeque q = populatedDeque(SIZE);
260	>	for (int i = SIZE - 1; i >= 0; --i) {
261	>	assertEquals(i, q.removeLast());
262	>	}
263	>	try {
264	>	q.removeLast();
265	>	shouldThrow();
266	>	} catch (NoSuchElementException success) {}
267	>	assertNull(q.peekLast());
268		}
269
270		/**
271	<	*  remove removes next element, or throws NSEE if empty
271	>	* remove removes next element, or throws NSEE if empty
272		*/
273		public void testRemove() {
274		LinkedBlockingDeque q = populatedDeque(SIZE);
275		for (int i = 0; i < SIZE; ++i) {
276	<	assertEquals(i, ((Integer)q.remove()).intValue());
276	>	assertEquals(i, q.remove());
277		}
278		try {
279		q.remove();
280		shouldThrow();
281	<	} catch (NoSuchElementException success){
219	<	}
281	>	} catch (NoSuchElementException success) {}
282		}
283
284		/**
#	Line 224 | Line 286 | public class LinkedBlockingDequeTest ext
286		*/
287		public void testRemoveFirstOccurrence() {
288		LinkedBlockingDeque q = populatedDeque(SIZE);
289	<	for (int i = 1; i < SIZE; i+=2) {
289	>	for (int i = 1; i < SIZE; i += 2) {
290		assertTrue(q.removeFirstOccurrence(new Integer(i)));
291		}
292	<	for (int i = 0; i < SIZE; i+=2) {
292	>	for (int i = 0; i < SIZE; i += 2) {
293		assertTrue(q.removeFirstOccurrence(new Integer(i)));
294	<	assertFalse(q.removeFirstOccurrence(new Integer(i+1)));
294	>	assertFalse(q.removeFirstOccurrence(new Integer(i + 1)));
295		}
296		assertTrue(q.isEmpty());
297		}
#	Line 239 | Line 301 | public class LinkedBlockingDequeTest ext
301		*/
302		public void testRemoveLastOccurrence() {
303		LinkedBlockingDeque q = populatedDeque(SIZE);
304	<	for (int i = 1; i < SIZE; i+=2) {
304	>	for (int i = 1; i < SIZE; i += 2) {
305		assertTrue(q.removeLastOccurrence(new Integer(i)));
306		}
307	<	for (int i = 0; i < SIZE; i+=2) {
307	>	for (int i = 0; i < SIZE; i += 2) {
308		assertTrue(q.removeLastOccurrence(new Integer(i)));
309	<	assertFalse(q.removeLastOccurrence(new Integer(i+1)));
309	>	assertFalse(q.removeLastOccurrence(new Integer(i + 1)));
310		}
311		assertTrue(q.isEmpty());
312		}
#	Line 255 | Line 317 | public class LinkedBlockingDequeTest ext
317		public void testAddFirst() {
318		LinkedBlockingDeque q = populatedDeque(3);
319		q.pollLast();
320	<	q.addFirst(four);
321	<	assertEquals(four,q.peekFirst());
320	>	q.addFirst(four);
321	>	assertSame(four, q.peekFirst());
322		}
323
324		/**
#	Line 265 | Line 327 | public class LinkedBlockingDequeTest ext
327		public void testAddLast() {
328		LinkedBlockingDeque q = populatedDeque(3);
329		q.pollLast();
330	<	q.addLast(four);
331	<	assertEquals(four,q.peekLast());
330	>	q.addLast(four);
331	>	assertSame(four, q.peekLast());
332		}
333
272	–
334		/**
335		* A new deque has the indicated capacity, or Integer.MAX_VALUE if
336		* none given
#	Line 280 | Line 341 | public class LinkedBlockingDequeTest ext
341		}
342
343		/**
344	<	* Constructor throws IAE if  capacity argument nonpositive
344	>	* Constructor throws IllegalArgumentException if capacity argument nonpositive
345		*/
346		public void testConstructor2() {
347		try {
348	<	LinkedBlockingDeque q = new LinkedBlockingDeque(0);
348	>	new LinkedBlockingDeque(0);
349		shouldThrow();
350	<	}
290	<	catch (IllegalArgumentException success) {}
350	>	} catch (IllegalArgumentException success) {}
351		}
352
353		/**
354	<	* Initializing from null Collection throws NPE
354	>	* Initializing from null Collection throws NullPointerException
355		*/
356		public void testConstructor3() {
357		try {
358	<	LinkedBlockingDeque q = new LinkedBlockingDeque(null);
358	>	new LinkedBlockingDeque(null);
359		shouldThrow();
360	<	}
301	<	catch (NullPointerException success) {}
360	>	} catch (NullPointerException success) {}
361		}
362
363		/**
364	<	* Initializing from Collection of null elements throws NPE
364	>	* Initializing from Collection of null elements throws NullPointerException
365		*/
366		public void testConstructor4() {
367	+	Collection<Integer> elements = Arrays.asList(new Integer[SIZE]);
368		try {
369	<	Integer[] ints = new Integer[SIZE];
310	<	LinkedBlockingDeque q = new LinkedBlockingDeque(Arrays.asList(ints));
369	>	new LinkedBlockingDeque(elements);
370		shouldThrow();
371	<	}
313	<	catch (NullPointerException success) {}
371	>	} catch (NullPointerException success) {}
372		}
373
374		/**
375	<	* Initializing from Collection with some null elements throws NPE
375	>	* Initializing from Collection with some null elements throws
376	>	* NullPointerException
377		*/
378		public void testConstructor5() {
379	+	Integer[] ints = new Integer[SIZE];
380	+	for (int i = 0; i < SIZE - 1; ++i)
381	+	ints[i] = i;
382	+	Collection<Integer> elements = Arrays.asList(ints);
383		try {
384	<	Integer[] ints = new Integer[SIZE];
322	<	for (int i = 0; i < SIZE-1; ++i)
323	<	ints[i] = new Integer(i);
324	<	LinkedBlockingDeque q = new LinkedBlockingDeque(Arrays.asList(ints));
384	>	new LinkedBlockingDeque(elements);
385		shouldThrow();
386	<	}
327	<	catch (NullPointerException success) {}
386	>	} catch (NullPointerException success) {}
387		}
388
389		/**
390		* Deque contains all elements of collection used to initialize
391		*/
392		public void testConstructor6() {
393	<	try {
394	<	Integer[] ints = new Integer[SIZE];
395	<	for (int i = 0; i < SIZE; ++i)
396	<	ints[i] = new Integer(i);
397	<	LinkedBlockingDeque q = new LinkedBlockingDeque(Arrays.asList(ints));
398	<	for (int i = 0; i < SIZE; ++i)
340	<	assertEquals(ints[i], q.poll());
341	<	}
342	<	finally {}
393	>	Integer[] ints = new Integer[SIZE];
394	>	for (int i = 0; i < SIZE; ++i)
395	>	ints[i] = i;
396	>	LinkedBlockingDeque q = new LinkedBlockingDeque(Arrays.asList(ints));
397	>	for (int i = 0; i < SIZE; ++i)
398	>	assertEquals(ints[i], q.poll());
399		}
400
401		/**
#	Line 361 | Line 417 | public class LinkedBlockingDequeTest ext
417		* remainingCapacity decreases on add, increases on remove
418		*/
419		public void testRemainingCapacity() {
420	<	LinkedBlockingDeque q = populatedDeque(SIZE);
420	>	BlockingQueue q = populatedDeque(SIZE);
421		for (int i = 0; i < SIZE; ++i) {
422		assertEquals(i, q.remainingCapacity());
423	<	assertEquals(SIZE-i, q.size());
424	<	q.remove();
423	>	assertEquals(SIZE, q.size() + q.remainingCapacity());
424	>	assertEquals(i, q.remove());
425		}
426		for (int i = 0; i < SIZE; ++i) {
427	<	assertEquals(SIZE-i, q.remainingCapacity());
428	<	assertEquals(i, q.size());
429	<	q.add(new Integer(i));
427	>	assertEquals(SIZE - i, q.remainingCapacity());
428	>	assertEquals(SIZE, q.size() + q.remainingCapacity());
429	>	assertTrue(q.add(i));
430		}
431		}
432
433		/**
378	–	* offer(null) throws NPE
379	–	*/
380	–	public void testOfferNull() {
381	–	try {
382	–	LinkedBlockingDeque q = new LinkedBlockingDeque(1);
383	–	q.offer(null);
384	–	shouldThrow();
385	–	} catch (NullPointerException success) { }
386	–	}
387	–
388	–	/**
389	–	* add(null) throws NPE
390	–	*/
391	–	public void testAddNull() {
392	–	try {
393	–	LinkedBlockingDeque q = new LinkedBlockingDeque(1);
394	–	q.add(null);
395	–	shouldThrow();
396	–	} catch (NullPointerException success) { }
397	–	}
398	–
399	–	/**
434		* push(null) throws NPE
435		*/
436		public void testPushNull() {
437	<	try {
438	<	LinkedBlockingDeque q = new LinkedBlockingDeque(1);
437	>	LinkedBlockingDeque q = new LinkedBlockingDeque(1);
438	>	try {
439		q.push(null);
440		shouldThrow();
441	<	} catch (NullPointerException success) { }
441	>	} catch (NullPointerException success) {}
442		}
443
444		/**
445	<	* push succeeds if not full; throws ISE if full
445	>	* push succeeds if not full; throws IllegalStateException if full
446		*/
447		public void testPush() {
448	<	try {
449	<	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
450	<	for (int i = 0; i < SIZE; ++i) {
451	<	Integer I = new Integer(i);
452	<	q.push(I);
453	<	assertEquals(I, q.peek());
454	<	}
455	<	assertEquals(0, q.remainingCapacity());
448	>	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
449	>	for (int i = 0; i < SIZE; ++i) {
450	>	Integer x = new Integer(i);
451	>	q.push(x);
452	>	assertEquals(x, q.peek());
453	>	}
454	>	assertEquals(0, q.remainingCapacity());
455	>	try {
456		q.push(new Integer(SIZE));
457	<	} catch (IllegalStateException success){
458	<	}
457	>	shouldThrow();
458	>	} catch (IllegalStateException success) {}
459		}
460
461		/**
#	Line 430 | Line 464 | public class LinkedBlockingDequeTest ext
464		public void testPushWithPeek() {
465		LinkedBlockingDeque q = populatedDeque(3);
466		q.pollLast();
467	<	q.push(four);
468	<	assertEquals(four,q.peekFirst());
467	>	q.push(four);
468	>	assertSame(four, q.peekFirst());
469		}
470
437	–
471		/**
472	<	*  pop removes next element, or throws NSEE if empty
472	>	* pop removes next element, or throws NSEE if empty
473		*/
474		public void testPop() {
475		LinkedBlockingDeque q = populatedDeque(SIZE);
476		for (int i = 0; i < SIZE; ++i) {
477	<	assertEquals(i, ((Integer)q.pop()).intValue());
477	>	assertEquals(i, q.pop());
478		}
479		try {
480		q.pop();
481		shouldThrow();
482	<	} catch (NoSuchElementException success){
450	<	}
482	>	} catch (NoSuchElementException success) {}
483		}
484
453	–
485		/**
486		* Offer succeeds if not full; fails if full
487		*/
#	Line 461 | Line 492 | public class LinkedBlockingDequeTest ext
492		}
493
494		/**
495	<	* add succeeds if not full; throws ISE if full
495	>	* add succeeds if not full; throws IllegalStateException if full
496		*/
497		public void testAdd() {
498	<	try {
499	<	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
500	<	for (int i = 0; i < SIZE; ++i) {
501	<	assertTrue(q.add(new Integer(i)));
471	<	}
472	<	assertEquals(0, q.remainingCapacity());
473	<	q.add(new Integer(SIZE));
474	<	} catch (IllegalStateException success){
475	<	}
476	<	}
477	<
478	<	/**
479	<	* addAll(null) throws NPE
480	<	*/
481	<	public void testAddAll1() {
498	>	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
499	>	for (int i = 0; i < SIZE; ++i)
500	>	assertTrue(q.add(new Integer(i)));
501	>	assertEquals(0, q.remainingCapacity());
502		try {
503	<	LinkedBlockingDeque q = new LinkedBlockingDeque(1);
484	<	q.addAll(null);
503	>	q.add(new Integer(SIZE));
504		shouldThrow();
505	<	}
487	<	catch (NullPointerException success) {}
505	>	} catch (IllegalStateException success) {}
506		}
507
508		/**
509	<	* addAll(this) throws IAE
509	>	* addAll(this) throws IllegalArgumentException
510		*/
511		public void testAddAllSelf() {
512	+	LinkedBlockingDeque q = populatedDeque(SIZE);
513		try {
495	–	LinkedBlockingDeque q = populatedDeque(SIZE);
514		q.addAll(q);
515		shouldThrow();
516	<	}
499	<	catch (IllegalArgumentException success) {}
516	>	} catch (IllegalArgumentException success) {}
517		}
518
519		/**
503	–	* addAll of a collection with null elements throws NPE
504	–	*/
505	–	public void testAddAll2() {
506	–	try {
507	–	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
508	–	Integer[] ints = new Integer[SIZE];
509	–	q.addAll(Arrays.asList(ints));
510	–	shouldThrow();
511	–	}
512	–	catch (NullPointerException success) {}
513	–	}
514	–	/**
520		* addAll of a collection with any null elements throws NPE after
521		* possibly adding some elements
522		*/
523		public void testAddAll3() {
524	+	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
525	+	Integer[] ints = new Integer[SIZE];
526	+	for (int i = 0; i < SIZE - 1; ++i)
527	+	ints[i] = new Integer(i);
528	+	Collection<Integer> elements = Arrays.asList(ints);
529		try {
530	<	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
521	<	Integer[] ints = new Integer[SIZE];
522	<	for (int i = 0; i < SIZE-1; ++i)
523	<	ints[i] = new Integer(i);
524	<	q.addAll(Arrays.asList(ints));
530	>	q.addAll(elements);
531		shouldThrow();
532	<	}
527	<	catch (NullPointerException success) {}
532	>	} catch (NullPointerException success) {}
533		}
534	+
535		/**
536	<	* addAll throws ISE if not enough room
536	>	* addAll throws IllegalStateException if not enough room
537		*/
538		public void testAddAll4() {
539	+	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE - 1);
540	+	Integer[] ints = new Integer[SIZE];
541	+	for (int i = 0; i < SIZE; ++i)
542	+	ints[i] = new Integer(i);
543	+	Collection<Integer> elements = Arrays.asList(ints);
544		try {
545	<	LinkedBlockingDeque q = new LinkedBlockingDeque(1);
535	<	Integer[] ints = new Integer[SIZE];
536	<	for (int i = 0; i < SIZE; ++i)
537	<	ints[i] = new Integer(i);
538	<	q.addAll(Arrays.asList(ints));
545	>	q.addAll(elements);
546		shouldThrow();
547	<	}
541	<	catch (IllegalStateException success) {}
547	>	} catch (IllegalStateException success) {}
548		}
549	+
550		/**
551		* Deque contains all elements, in traversal order, of successful addAll
552		*/
553		public void testAddAll5() {
554	<	try {
555	<	Integer[] empty = new Integer[0];
556	<	Integer[] ints = new Integer[SIZE];
557	<	for (int i = 0; i < SIZE; ++i)
558	<	ints[i] = new Integer(i);
559	<	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
560	<	assertFalse(q.addAll(Arrays.asList(empty)));
561	<	assertTrue(q.addAll(Arrays.asList(ints)));
562	<	for (int i = 0; i < SIZE; ++i)
556	<	assertEquals(ints[i], q.poll());
557	<	}
558	<	finally {}
554	>	Integer[] empty = new Integer[0];
555	>	Integer[] ints = new Integer[SIZE];
556	>	for (int i = 0; i < SIZE; ++i)
557	>	ints[i] = new Integer(i);
558	>	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
559	>	assertFalse(q.addAll(Arrays.asList(empty)));
560	>	assertTrue(q.addAll(Arrays.asList(ints)));
561	>	for (int i = 0; i < SIZE; ++i)
562	>	assertEquals(ints[i], q.poll());
563		}
564
561	–
562	–	/**
563	–	* put(null) throws NPE
564	–	*/
565	–	public void testPutNull() {
566	–	try {
567	–	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
568	–	q.put(null);
569	–	shouldThrow();
570	–	}
571	–	catch (NullPointerException success){
572	–	}
573	–	catch (InterruptedException ie) {
574	–	unexpectedException();
575	–	}
576	–	}
577	–
565		/**
566		* all elements successfully put are contained
567		*/
568	<	public void testPut() {
569	<	try {
570	<	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
571	<	for (int i = 0; i < SIZE; ++i) {
572	<	Integer I = new Integer(i);
573	<	q.put(I);
587	<	assertTrue(q.contains(I));
588	<	}
589	<	assertEquals(0, q.remainingCapacity());
590	<	}
591	<	catch (InterruptedException ie) {
592	<	unexpectedException();
568	>	public void testPut() throws InterruptedException {
569	>	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
570	>	for (int i = 0; i < SIZE; ++i) {
571	>	Integer x = new Integer(i);
572	>	q.put(x);
573	>	assertTrue(q.contains(x));
574		}
575	+	assertEquals(0, q.remainingCapacity());
576		}
577
578		/**
579		* put blocks interruptibly if full
580		*/
581	<	public void testBlockingPut() {
582	<	Thread t = new Thread(new Runnable() {
583	<	public void run() {
584	<	int added = 0;
585	<	try {
586	<	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
587	<	for (int i = 0; i < SIZE; ++i) {
588	<	q.put(new Integer(i));
589	<	++added;
590	<	}
591	<	q.put(new Integer(SIZE));
592	<	threadShouldThrow();
593	<	} catch (InterruptedException ie){
594	<	threadAssertEquals(added, SIZE);
595	<	}
596	<	}});
597	<	t.start();
598	<	try {
599	<	Thread.sleep(SHORT_DELAY_MS);
600	<	t.interrupt();
601	<	t.join();
602	<	}
603	<	catch (InterruptedException ie) {
604	<	unexpectedException();
605	<	}
581	>	public void testBlockingPut() throws InterruptedException {
582	>	final LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
583	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
584	>	Thread t = newStartedThread(new CheckedRunnable() {
585	>	public void realRun() throws InterruptedException {
586	>	for (int i = 0; i < SIZE; ++i)
587	>	q.put(i);
588	>	assertEquals(SIZE, q.size());
589	>	assertEquals(0, q.remainingCapacity());
590	>
591	>	Thread.currentThread().interrupt();
592	>	try {
593	>	q.put(99);
594	>	shouldThrow();
595	>	} catch (InterruptedException success) {}
596	>	assertFalse(Thread.interrupted());
597	>
598	>	pleaseInterrupt.countDown();
599	>	try {
600	>	q.put(99);
601	>	shouldThrow();
602	>	} catch (InterruptedException success) {}
603	>	assertFalse(Thread.interrupted());
604	>	}});
605	>
606	>	await(pleaseInterrupt);
607	>	if (randomBoolean()) assertThreadBlocks(t, Thread.State.WAITING);
608	>	t.interrupt();
609	>	awaitTermination(t);
610	>	assertEquals(SIZE, q.size());
611	>	assertEquals(0, q.remainingCapacity());
612		}
613
614		/**
615	<	* put blocks waiting for take when full
615	>	* put blocks interruptibly waiting for take when full
616		*/
617	<	public void testPutWithTake() {
618	<	final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
619	<	Thread t = new Thread(new Runnable() {
620	<	public void run() {
621	<	int added = 0;
622	<	try {
623	<	q.put(new Object());
624	<	++added;
625	<	q.put(new Object());
626	<	++added;
627	<	q.put(new Object());
628	<	++added;
629	<	q.put(new Object());
630	<	++added;
631	<	threadShouldThrow();
632	<	} catch (InterruptedException e){
633	<	threadAssertTrue(added >= 2);
634	<	}
635	<	}
636	<	});
637	<	try {
638	<	t.start();
639	<	Thread.sleep(SHORT_DELAY_MS);
640	<	q.take();
641	<	t.interrupt();
642	<	t.join();
643	<	} catch (Exception e){
644	<	unexpectedException();
645	<	}
617	>	public void testPutWithTake() throws InterruptedException {
618	>	final int capacity = 2;
619	>	final LinkedBlockingDeque q = new LinkedBlockingDeque(capacity);
620	>	final CountDownLatch pleaseTake = new CountDownLatch(1);
621	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
622	>	Thread t = newStartedThread(new CheckedRunnable() {
623	>	public void realRun() throws InterruptedException {
624	>	for (int i = 0; i < capacity; i++)
625	>	q.put(i);
626	>	pleaseTake.countDown();
627	>	q.put(86);
628	>
629	>	Thread.currentThread().interrupt();
630	>	try {
631	>	q.put(99);
632	>	shouldThrow();
633	>	} catch (InterruptedException success) {}
634	>	assertFalse(Thread.interrupted());
635	>
636	>	pleaseInterrupt.countDown();
637	>	try {
638	>	q.put(99);
639	>	shouldThrow();
640	>	} catch (InterruptedException success) {}
641	>	assertFalse(Thread.interrupted());
642	>	}});
643	>
644	>	await(pleaseTake);
645	>	assertEquals(0, q.remainingCapacity());
646	>	assertEquals(0, q.take());
647	>
648	>	await(pleaseInterrupt);
649	>	if (randomBoolean()) assertThreadBlocks(t, Thread.State.WAITING);
650	>	t.interrupt();
651	>	awaitTermination(t);
652	>	assertEquals(0, q.remainingCapacity());
653		}
654
655		/**
#	Line 662 | Line 657 | public class LinkedBlockingDequeTest ext
657		*/
658		public void testTimedOffer() {
659		final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
660	<	Thread t = new Thread(new Runnable() {
661	<	public void run() {
662	<	try {
663	<	q.put(new Object());
664	<	q.put(new Object());
665	<	threadAssertFalse(q.offer(new Object(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
666	<	q.offer(new Object(), LONG_DELAY_MS, TimeUnit.MILLISECONDS);
667	<	threadShouldThrow();
668	<	} catch (InterruptedException success){}
669	<	}
670	<	});
671	<
672	<	try {
673	<	t.start();
674	<	Thread.sleep(SMALL_DELAY_MS);
675	<	t.interrupt();
676	<	t.join();
677	<	} catch (Exception e){
678	<	unexpectedException();
679	<	}
660	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
661	>	Thread t = newStartedThread(new CheckedRunnable() {
662	>	public void realRun() throws InterruptedException {
663	>	q.put(new Object());
664	>	q.put(new Object());
665	>	long startTime = System.nanoTime();
666	>
667	>	assertFalse(q.offer(new Object(), timeoutMillis(), MILLISECONDS));
668	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
669	>
670	>	Thread.currentThread().interrupt();
671	>	try {
672	>	q.offer(new Object(), randomTimeout(), randomTimeUnit());
673	>	shouldThrow();
674	>	} catch (InterruptedException success) {}
675	>	assertFalse(Thread.interrupted());
676	>
677	>	pleaseInterrupt.countDown();
678	>	try {
679	>	q.offer(new Object(), LONGER_DELAY_MS, MILLISECONDS);
680	>	shouldThrow();
681	>	} catch (InterruptedException success) {}
682	>	assertFalse(Thread.interrupted());
683	>	}});
684	>
685	>	await(pleaseInterrupt);
686	>	if (randomBoolean()) assertThreadBlocks(t, Thread.State.TIMED_WAITING);
687	>	t.interrupt();
688	>	awaitTermination(t);
689		}
690
691		/**
692		* take retrieves elements in FIFO order
693		*/
694	<	public void testTake() {
695	<	try {
696	<	LinkedBlockingDeque q = populatedDeque(SIZE);
697	<	for (int i = 0; i < SIZE; ++i) {
698	<	assertEquals(i, ((Integer)q.take()).intValue());
695	<	}
696	<	} catch (InterruptedException e){
697	<	unexpectedException();
698	<	}
694	>	public void testTake() throws InterruptedException {
695	>	LinkedBlockingDeque q = populatedDeque(SIZE);
696	>	for (int i = 0; i < SIZE; ++i) {
697	>	assertEquals(i, q.take());
698	>	}
699		}
700
701		/**
702	<	* take blocks interruptibly when empty
702	>	* take removes existing elements until empty, then blocks interruptibly
703		*/
704	<	public void testTakeFromEmpty() {
705	<	final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
706	<	Thread t = new Thread(new Runnable() {
707	<	public void run() {
708	<	try {
709	<	q.take();
710	<	threadShouldThrow();
711	<	} catch (InterruptedException success){ }
712	<	}
713	<	});
714	<	try {
715	<	t.start();
716	<	Thread.sleep(SHORT_DELAY_MS);
717	<	t.interrupt();
718	<	t.join();
719	<	} catch (Exception e){
720	<	unexpectedException();
721	<	}
722	<	}
704	>	public void testBlockingTake() throws InterruptedException {
705	>	final LinkedBlockingDeque q = populatedDeque(SIZE);
706	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
707	>	Thread t = newStartedThread(new CheckedRunnable() {
708	>	public void realRun() throws InterruptedException {
709	>	for (int i = 0; i < SIZE; i++) assertEquals(i, q.take());
710
711	<	/**
712	<	* Take removes existing elements until empty, then blocks interruptibly
713	<	*/
714	<	public void testBlockingTake() {
715	<	Thread t = new Thread(new Runnable() {
716	<	public void run() {
730	<	try {
731	<	LinkedBlockingDeque q = populatedDeque(SIZE);
732	<	for (int i = 0; i < SIZE; ++i) {
733	<	assertEquals(i, ((Integer)q.take()).intValue());
734	<	}
735	<	q.take();
736	<	threadShouldThrow();
737	<	} catch (InterruptedException success){
738	<	}
739	<	}});
740	<	t.start();
741	<	try {
742	<	Thread.sleep(SHORT_DELAY_MS);
743	<	t.interrupt();
744	<	t.join();
745	<	}
746	<	catch (InterruptedException ie) {
747	<	unexpectedException();
748	<	}
749	<	}
711	>	Thread.currentThread().interrupt();
712	>	try {
713	>	q.take();
714	>	shouldThrow();
715	>	} catch (InterruptedException success) {}
716	>	assertFalse(Thread.interrupted());
717
718	+	pleaseInterrupt.countDown();
719	+	try {
720	+	q.take();
721	+	shouldThrow();
722	+	} catch (InterruptedException success) {}
723	+	assertFalse(Thread.interrupted());
724	+	}});
725	+
726	+	await(pleaseInterrupt);
727	+	if (randomBoolean()) assertThreadBlocks(t, Thread.State.WAITING);
728	+	t.interrupt();
729	+	awaitTermination(t);
730	+	}
731
732		/**
733		* poll succeeds unless empty
#	Line 755 | Line 735 | public class LinkedBlockingDequeTest ext
735		public void testPoll() {
736		LinkedBlockingDeque q = populatedDeque(SIZE);
737		for (int i = 0; i < SIZE; ++i) {
738	<	assertEquals(i, ((Integer)q.poll()).intValue());
738	>	assertEquals(i, q.poll());
739		}
740	<	assertNull(q.poll());
740	>	assertNull(q.poll());
741		}
742
743		/**
744		* timed poll with zero timeout succeeds when non-empty, else times out
745		*/
746	<	public void testTimedPoll0() {
747	<	try {
748	<	LinkedBlockingDeque q = populatedDeque(SIZE);
749	<	for (int i = 0; i < SIZE; ++i) {
750	<	assertEquals(i, ((Integer)q.poll(0, TimeUnit.MILLISECONDS)).intValue());
751	<	}
772	<	assertNull(q.poll(0, TimeUnit.MILLISECONDS));
773	<	} catch (InterruptedException e){
774	<	unexpectedException();
775	<	}
746	>	public void testTimedPoll0() throws InterruptedException {
747	>	LinkedBlockingDeque q = populatedDeque(SIZE);
748	>	for (int i = 0; i < SIZE; ++i) {
749	>	assertEquals(i, q.poll(0, MILLISECONDS));
750	>	}
751	>	assertNull(q.poll(0, MILLISECONDS));
752		}
753
754		/**
755		* timed poll with nonzero timeout succeeds when non-empty, else times out
756		*/
757	<	public void testTimedPoll() {
758	<	try {
759	<	LinkedBlockingDeque q = populatedDeque(SIZE);
760	<	for (int i = 0; i < SIZE; ++i) {
761	<	assertEquals(i, ((Integer)q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS)).intValue());
762	<	}
763	<	assertNull(q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
764	<	} catch (InterruptedException e){
765	<	unexpectedException();
766	<	}
757	>	public void testTimedPoll() throws InterruptedException {
758	>	LinkedBlockingDeque q = populatedDeque(SIZE);
759	>	for (int i = 0; i < SIZE; ++i) {
760	>	long startTime = System.nanoTime();
761	>	assertEquals(i, q.poll(LONG_DELAY_MS, MILLISECONDS));
762	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
763	>	}
764	>	long startTime = System.nanoTime();
765	>	assertNull(q.poll(timeoutMillis(), MILLISECONDS));
766	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
767	>	checkEmpty(q);
768		}
769
770		/**
771		* Interrupted timed poll throws InterruptedException instead of
772		* returning timeout status
773		*/
774	<	public void testInterruptedTimedPoll() {
775	<	Thread t = new Thread(new Runnable() {
776	<	public void run() {
777	<	try {
778	<	LinkedBlockingDeque q = populatedDeque(SIZE);
779	<	for (int i = 0; i < SIZE; ++i) {
780	<	threadAssertEquals(i, ((Integer)q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS)).intValue());
804	<	}
805	<	threadAssertNull(q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
806	<	} catch (InterruptedException success){
807	<	}
808	<	}});
809	<	t.start();
810	<	try {
811	<	Thread.sleep(SHORT_DELAY_MS);
812	<	t.interrupt();
813	<	t.join();
814	<	}
815	<	catch (InterruptedException ie) {
816	<	unexpectedException();
817	<	}
818	<	}
774	>	public void testInterruptedTimedPoll() throws InterruptedException {
775	>	final BlockingQueue<Integer> q = populatedDeque(SIZE);
776	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
777	>	Thread t = newStartedThread(new CheckedRunnable() {
778	>	public void realRun() throws InterruptedException {
779	>	for (int i = 0; i < SIZE; i++)
780	>	assertEquals(i, (int) q.poll(LONG_DELAY_MS, MILLISECONDS));
781
782	<	/**
783	<	*  timed poll before a delayed offer fails; after offer succeeds;
784	<	*  on interruption throws
785	<	*/
786	<	public void testTimedPollWithOffer() {
787	<	final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
826	<	Thread t = new Thread(new Runnable() {
827	<	public void run() {
828	<	try {
829	<	threadAssertNull(q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
830	<	q.poll(LONG_DELAY_MS, TimeUnit.MILLISECONDS);
831	<	q.poll(LONG_DELAY_MS, TimeUnit.MILLISECONDS);
832	<	threadShouldThrow();
833	<	} catch (InterruptedException success) { }
834	<	}
835	<	});
836	<	try {
837	<	t.start();
838	<	Thread.sleep(SMALL_DELAY_MS);
839	<	assertTrue(q.offer(zero, SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
840	<	t.interrupt();
841	<	t.join();
842	<	} catch (Exception e){
843	<	unexpectedException();
844	<	}
845	<	}
782	>	Thread.currentThread().interrupt();
783	>	try {
784	>	q.poll(randomTimeout(), randomTimeUnit());
785	>	shouldThrow();
786	>	} catch (InterruptedException success) {}
787	>	assertFalse(Thread.interrupted());
788
789	+	pleaseInterrupt.countDown();
790	+	try {
791	+	q.poll(LONGER_DELAY_MS, MILLISECONDS);
792	+	shouldThrow();
793	+	} catch (InterruptedException success) {}
794	+	assertFalse(Thread.interrupted());
795	+	}});
796	+
797	+	await(pleaseInterrupt);
798	+	if (randomBoolean()) assertThreadBlocks(t, Thread.State.TIMED_WAITING);
799	+	t.interrupt();
800	+	awaitTermination(t);
801	+	checkEmpty(q);
802	+	}
803
804		/**
805		* putFirst(null) throws NPE
806		*/
807	<	public void testPutFirstNull() {
808	<	try {
809	<	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
807	>	public void testPutFirstNull() throws InterruptedException {
808	>	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
809	>	try {
810		q.putFirst(null);
811		shouldThrow();
812	<	}
813	<	catch (NullPointerException success){
858	<	}
859	<	catch (InterruptedException ie) {
860	<	unexpectedException();
861	<	}
862	<	}
812	>	} catch (NullPointerException success) {}
813	>	}
814
815		/**
816		* all elements successfully putFirst are contained
817		*/
818	<	public void testPutFirst() {
819	<	try {
820	<	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
821	<	for (int i = 0; i < SIZE; ++i) {
822	<	Integer I = new Integer(i);
823	<	q.putFirst(I);
873	<	assertTrue(q.contains(I));
874	<	}
875	<	assertEquals(0, q.remainingCapacity());
876	<	}
877	<	catch (InterruptedException ie) {
878	<	unexpectedException();
818	>	public void testPutFirst() throws InterruptedException {
819	>	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
820	>	for (int i = 0; i < SIZE; ++i) {
821	>	Integer x = new Integer(i);
822	>	q.putFirst(x);
823	>	assertTrue(q.contains(x));
824		}
825	+	assertEquals(0, q.remainingCapacity());
826		}
827
828		/**
829		* putFirst blocks interruptibly if full
830		*/
831	<	public void testBlockingPutFirst() {
832	<	Thread t = new Thread(new Runnable() {
833	<	public void run() {
834	<	int added = 0;
835	<	try {
836	<	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
837	<	for (int i = 0; i < SIZE; ++i) {
838	<	q.putFirst(new Integer(i));
839	<	++added;
840	<	}
841	<	q.putFirst(new Integer(SIZE));
842	<	threadShouldThrow();
843	<	} catch (InterruptedException ie){
844	<	threadAssertEquals(added, SIZE);
845	<	}
846	<	}});
847	<	t.start();
848	<	try {
849	<	Thread.sleep(SHORT_DELAY_MS);
850	<	t.interrupt();
851	<	t.join();
852	<	}
853	<	catch (InterruptedException ie) {
854	<	unexpectedException();
855	<	}
831	>	public void testBlockingPutFirst() throws InterruptedException {
832	>	final LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
833	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
834	>	Thread t = newStartedThread(new CheckedRunnable() {
835	>	public void realRun() throws InterruptedException {
836	>	for (int i = 0; i < SIZE; ++i)
837	>	q.putFirst(i);
838	>	assertEquals(SIZE, q.size());
839	>	assertEquals(0, q.remainingCapacity());
840	>
841	>	Thread.currentThread().interrupt();
842	>	try {
843	>	q.putFirst(99);
844	>	shouldThrow();
845	>	} catch (InterruptedException success) {}
846	>	assertFalse(Thread.interrupted());
847	>
848	>	pleaseInterrupt.countDown();
849	>	try {
850	>	q.putFirst(99);
851	>	shouldThrow();
852	>	} catch (InterruptedException success) {}
853	>	assertFalse(Thread.interrupted());
854	>	}});
855	>
856	>	await(pleaseInterrupt);
857	>	if (randomBoolean()) assertThreadBlocks(t, Thread.State.WAITING);
858	>	t.interrupt();
859	>	awaitTermination(t);
860	>	assertEquals(SIZE, q.size());
861	>	assertEquals(0, q.remainingCapacity());
862		}
863
864		/**
865	<	* putFirst blocks waiting for take when full
865	>	* putFirst blocks interruptibly waiting for take when full
866		*/
867	<	public void testPutFirstWithTake() {
868	<	final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
869	<	Thread t = new Thread(new Runnable() {
870	<	public void run() {
871	<	int added = 0;
872	<	try {
873	<	q.putFirst(new Object());
874	<	++added;
875	<	q.putFirst(new Object());
876	<	++added;
877	<	q.putFirst(new Object());
878	<	++added;
879	<	q.putFirst(new Object());
880	<	++added;
881	<	threadShouldThrow();
882	<	} catch (InterruptedException e){
883	<	threadAssertTrue(added >= 2);
884	<	}
885	<	}
886	<	});
887	<	try {
888	<	t.start();
889	<	Thread.sleep(SHORT_DELAY_MS);
890	<	q.take();
891	<	t.interrupt();
892	<	t.join();
893	<	} catch (Exception e){
894	<	unexpectedException();
895	<	}
867	>	public void testPutFirstWithTake() throws InterruptedException {
868	>	final int capacity = 2;
869	>	final LinkedBlockingDeque q = new LinkedBlockingDeque(capacity);
870	>	final CountDownLatch pleaseTake = new CountDownLatch(1);
871	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
872	>	Thread t = newStartedThread(new CheckedRunnable() {
873	>	public void realRun() throws InterruptedException {
874	>	for (int i = 0; i < capacity; i++)
875	>	q.putFirst(i);
876	>	pleaseTake.countDown();
877	>	q.putFirst(86);
878	>
879	>	pleaseInterrupt.countDown();
880	>	try {
881	>	q.putFirst(99);
882	>	shouldThrow();
883	>	} catch (InterruptedException success) {}
884	>	assertFalse(Thread.interrupted());
885	>	}});
886	>
887	>	await(pleaseTake);
888	>	assertEquals(0, q.remainingCapacity());
889	>	assertEquals(capacity - 1, q.take());
890	>
891	>	await(pleaseInterrupt);
892	>	if (randomBoolean()) assertThreadBlocks(t, Thread.State.WAITING);
893	>	t.interrupt();
894	>	awaitTermination(t);
895	>	assertEquals(0, q.remainingCapacity());
896		}
897
898		/**
#	Line 948 | Line 900 | public class LinkedBlockingDequeTest ext
900		*/
901		public void testTimedOfferFirst() {
902		final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
903	<	Thread t = new Thread(new Runnable() {
904	<	public void run() {
905	<	try {
906	<	q.putFirst(new Object());
907	<	q.putFirst(new Object());
908	<	threadAssertFalse(q.offerFirst(new Object(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
909	<	q.offerFirst(new Object(), LONG_DELAY_MS, TimeUnit.MILLISECONDS);
910	<	threadShouldThrow();
911	<	} catch (InterruptedException success){}
912	<	}
913	<	});
914	<
915	<	try {
916	<	t.start();
917	<	Thread.sleep(SMALL_DELAY_MS);
918	<	t.interrupt();
919	<	t.join();
920	<	} catch (Exception e){
921	<	unexpectedException();
922	<	}
903	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
904	>	Thread t = newStartedThread(new CheckedRunnable() {
905	>	public void realRun() throws InterruptedException {
906	>	q.putFirst(new Object());
907	>	q.putFirst(new Object());
908	>	long startTime = System.nanoTime();
909	>
910	>	assertFalse(q.offerFirst(new Object(), timeoutMillis(), MILLISECONDS));
911	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
912	>
913	>	Thread.currentThread().interrupt();
914	>	try {
915	>	q.offerFirst(new Object(), randomTimeout(), randomTimeUnit());
916	>	shouldThrow();
917	>	} catch (InterruptedException success) {}
918	>	assertFalse(Thread.interrupted());
919	>
920	>	pleaseInterrupt.countDown();
921	>	try {
922	>	q.offerFirst(new Object(), LONG_DELAY_MS, MILLISECONDS);
923	>	shouldThrow();
924	>	} catch (InterruptedException success) {}
925	>	assertFalse(Thread.interrupted());
926	>
927	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
928	>	}});
929	>
930	>	await(pleaseInterrupt);
931	>	if (randomBoolean()) assertThreadBlocks(t, Thread.State.TIMED_WAITING);
932	>	t.interrupt();
933	>	awaitTermination(t);
934		}
935
936		/**
937		* take retrieves elements in FIFO order
938		*/
939	<	public void testTakeFirst() {
940	<	try {
941	<	LinkedBlockingDeque q = populatedDeque(SIZE);
942	<	for (int i = 0; i < SIZE; ++i) {
943	<	assertEquals(i, ((Integer)q.takeFirst()).intValue());
981	<	}
982	<	} catch (InterruptedException e){
983	<	unexpectedException();
984	<	}
939	>	public void testTakeFirst() throws InterruptedException {
940	>	LinkedBlockingDeque q = populatedDeque(SIZE);
941	>	for (int i = 0; i < SIZE; ++i) {
942	>	assertEquals(i, q.takeFirst());
943	>	}
944		}
945
946		/**
947	<	* takeFirst blocks interruptibly when empty
947	>	* takeFirst() blocks interruptibly when empty
948		*/
949	<	public void testTakeFirstFromEmpty() {
950	<	final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
951	<	Thread t = new Thread(new Runnable() {
952	<	public void run() {
953	<	try {
954	<	q.takeFirst();
955	<	threadShouldThrow();
956	<	} catch (InterruptedException success){ }
957	<	}
958	<	});
959	<	try {
960	<	t.start();
961	<	Thread.sleep(SHORT_DELAY_MS);
962	<	t.interrupt();
963	<	t.join();
964	<	} catch (Exception e){
965	<	unexpectedException();
1007	<	}
949	>	public void testTakeFirstFromEmptyBlocksInterruptibly() {
950	>	final BlockingDeque q = new LinkedBlockingDeque();
951	>	final CountDownLatch threadStarted = new CountDownLatch(1);
952	>	Thread t = newStartedThread(new CheckedRunnable() {
953	>	public void realRun() {
954	>	threadStarted.countDown();
955	>	try {
956	>	q.takeFirst();
957	>	shouldThrow();
958	>	} catch (InterruptedException success) {}
959	>	assertFalse(Thread.interrupted());
960	>	}});
961	>
962	>	await(threadStarted);
963	>	if (randomBoolean()) assertThreadBlocks(t, Thread.State.WAITING);
964	>	t.interrupt();
965	>	awaitTermination(t);
966		}
967
968		/**
969	<	* TakeFirst removes existing elements until empty, then blocks interruptibly
970	<	*/
971	<	public void testBlockingTakeFirst() {
972	<	Thread t = new Thread(new Runnable() {
973	<	public void run() {
974	<	try {
975	<	LinkedBlockingDeque q = populatedDeque(SIZE);
976	<	for (int i = 0; i < SIZE; ++i) {
977	<	assertEquals(i, ((Integer)q.takeFirst()).intValue());
978	<	}
979	<	q.takeFirst();
980	<	threadShouldThrow();
981	<	} catch (InterruptedException success){
982	<	}
983	<	}});
984	<	t.start();
985	<	try {
986	<	Thread.sleep(SHORT_DELAY_MS);
987	<	t.interrupt();
988	<	t.join();
989	<	}
990	<	catch (InterruptedException ie) {
991	<	unexpectedException();
992	<	}
969	>	* takeFirst() throws InterruptedException immediately if interrupted
970	>	* before waiting
971	>	*/
972	>	public void testTakeFirstFromEmptyAfterInterrupt() {
973	>	final BlockingDeque q = new LinkedBlockingDeque();
974	>	Thread t = newStartedThread(new CheckedRunnable() {
975	>	public void realRun() {
976	>	Thread.currentThread().interrupt();
977	>	try {
978	>	q.takeFirst();
979	>	shouldThrow();
980	>	} catch (InterruptedException success) {}
981	>	assertFalse(Thread.interrupted());
982	>	}});
983	>
984	>	awaitTermination(t);
985	>	}
986	>
987	>	/**
988	>	* takeLast() blocks interruptibly when empty
989	>	*/
990	>	public void testTakeLastFromEmptyBlocksInterruptibly() {
991	>	final BlockingDeque q = new LinkedBlockingDeque();
992	>	final CountDownLatch threadStarted = new CountDownLatch(1);
993	>	Thread t = newStartedThread(new CheckedRunnable() {
994	>	public void realRun() {
995	>	threadStarted.countDown();
996	>	try {
997	>	q.takeLast();
998	>	shouldThrow();
999	>	} catch (InterruptedException success) {}
1000	>	assertFalse(Thread.interrupted());
1001	>	}});
1002	>
1003	>	await(threadStarted);
1004	>	if (randomBoolean()) assertThreadBlocks(t, Thread.State.WAITING);
1005	>	t.interrupt();
1006	>	awaitTermination(t);
1007	>	}
1008	>
1009	>	/**
1010	>	* takeLast() throws InterruptedException immediately if interrupted
1011	>	* before waiting
1012	>	*/
1013	>	public void testTakeLastFromEmptyAfterInterrupt() {
1014	>	final BlockingDeque q = new LinkedBlockingDeque();
1015	>	Thread t = newStartedThread(new CheckedRunnable() {
1016	>	public void realRun() {
1017	>	Thread.currentThread().interrupt();
1018	>	try {
1019	>	q.takeLast();
1020	>	shouldThrow();
1021	>	} catch (InterruptedException success) {}
1022	>	assertFalse(Thread.interrupted());
1023	>	}});
1024	>
1025	>	awaitTermination(t);
1026		}
1027
1028	+	/**
1029	+	* takeFirst removes existing elements until empty, then blocks interruptibly
1030	+	*/
1031	+	public void testBlockingTakeFirst() throws InterruptedException {
1032	+	final LinkedBlockingDeque q = populatedDeque(SIZE);
1033	+	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
1034	+	Thread t = newStartedThread(new CheckedRunnable() {
1035	+	public void realRun() throws InterruptedException {
1036	+	for (int i = 0; i < SIZE; i++) assertEquals(i, q.takeFirst());
1037	+
1038	+	Thread.currentThread().interrupt();
1039	+	try {
1040	+	q.takeFirst();
1041	+	shouldThrow();
1042	+	} catch (InterruptedException success) {}
1043	+	assertFalse(Thread.interrupted());
1044	+
1045	+	pleaseInterrupt.countDown();
1046	+	try {
1047	+	q.takeFirst();
1048	+	shouldThrow();
1049	+	} catch (InterruptedException success) {}
1050	+	assertFalse(Thread.interrupted());
1051	+	}});
1052	+
1053	+	await(pleaseInterrupt);
1054	+	if (randomBoolean()) assertThreadBlocks(t, Thread.State.WAITING);
1055	+	t.interrupt();
1056	+	awaitTermination(t);
1057	+	}
1058
1059		/**
1060		* timed pollFirst with zero timeout succeeds when non-empty, else times out
1061		*/
1062	<	public void testTimedPollFirst0() {
1063	<	try {
1064	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1065	<	for (int i = 0; i < SIZE; ++i) {
1066	<	assertEquals(i, ((Integer)q.pollFirst(0, TimeUnit.MILLISECONDS)).intValue());
1067	<	}
1047	<	assertNull(q.pollFirst(0, TimeUnit.MILLISECONDS));
1048	<	} catch (InterruptedException e){
1049	<	unexpectedException();
1050	<	}
1062	>	public void testTimedPollFirst0() throws InterruptedException {
1063	>	LinkedBlockingDeque q = populatedDeque(SIZE);
1064	>	for (int i = 0; i < SIZE; ++i) {
1065	>	assertEquals(i, q.pollFirst(0, MILLISECONDS));
1066	>	}
1067	>	assertNull(q.pollFirst(0, MILLISECONDS));
1068		}
1069
1070		/**
1071		* timed pollFirst with nonzero timeout succeeds when non-empty, else times out
1072		*/
1073	<	public void testTimedPollFirst() {
1074	<	try {
1075	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1076	<	for (int i = 0; i < SIZE; ++i) {
1077	<	assertEquals(i, ((Integer)q.pollFirst(SHORT_DELAY_MS, TimeUnit.MILLISECONDS)).intValue());
1078	<	}
1079	<	assertNull(q.pollFirst(SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
1080	<	} catch (InterruptedException e){
1081	<	unexpectedException();
1082	<	}
1073	>	public void testTimedPollFirst() throws InterruptedException {
1074	>	LinkedBlockingDeque q = populatedDeque(SIZE);
1075	>	for (int i = 0; i < SIZE; ++i) {
1076	>	long startTime = System.nanoTime();
1077	>	assertEquals(i, q.pollFirst(LONG_DELAY_MS, MILLISECONDS));
1078	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1079	>	}
1080	>	long startTime = System.nanoTime();
1081	>	assertNull(q.pollFirst(timeoutMillis(), MILLISECONDS));
1082	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
1083	>	checkEmpty(q);
1084		}
1085
1086		/**
1087		* Interrupted timed pollFirst throws InterruptedException instead of
1088		* returning timeout status
1089		*/
1090	<	public void testInterruptedTimedPollFirst() {
1091	<	Thread t = new Thread(new Runnable() {
1092	<	public void run() {
1093	<	try {
1094	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1095	<	for (int i = 0; i < SIZE; ++i) {
1096	<	threadAssertEquals(i, ((Integer)q.pollFirst(SHORT_DELAY_MS, TimeUnit.MILLISECONDS)).intValue());
1097	<	}
1098	<	threadAssertNull(q.pollFirst(SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
1099	<	} catch (InterruptedException success){
1100	<	}
1101	<	}});
1102	<	t.start();
1103	<	try {
1104	<	Thread.sleep(SHORT_DELAY_MS);
1105	<	t.interrupt();
1106	<	t.join();
1107	<	}
1108	<	catch (InterruptedException ie) {
1109	<	unexpectedException();
1110	<	}
1090	>	public void testInterruptedTimedPollFirst() throws InterruptedException {
1091	>	final LinkedBlockingDeque q = populatedDeque(SIZE);
1092	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
1093	>	Thread t = newStartedThread(new CheckedRunnable() {
1094	>	public void realRun() throws InterruptedException {
1095	>	for (int i = 0; i < SIZE; i++)
1096	>	assertEquals(i, q.pollFirst(LONG_DELAY_MS, MILLISECONDS));
1097	>
1098	>	Thread.currentThread().interrupt();
1099	>	try {
1100	>	q.pollFirst(randomTimeout(), randomTimeUnit());
1101	>	shouldThrow();
1102	>	} catch (InterruptedException success) {}
1103	>	assertFalse(Thread.interrupted());
1104	>
1105	>	pleaseInterrupt.countDown();
1106	>	try {
1107	>	q.pollFirst(LONGER_DELAY_MS, MILLISECONDS);
1108	>	shouldThrow();
1109	>	} catch (InterruptedException success) {}
1110	>	assertFalse(Thread.interrupted());
1111	>	}});
1112	>
1113	>	await(pleaseInterrupt);
1114	>	if (randomBoolean()) assertThreadBlocks(t, Thread.State.TIMED_WAITING);
1115	>	t.interrupt();
1116	>	awaitTermination(t);
1117		}
1118
1119		/**
1120	<	*  timed pollFirst before a delayed offerFirst fails; after offerFirst succeeds;
1121	<	*  on interruption throws
1120	>	* timed pollFirst before a delayed offerFirst fails; after offerFirst succeeds;
1121	>	* on interruption throws
1122		*/
1123	<	public void testTimedPollFirstWithOfferFirst() {
1123	>	public void testTimedPollFirstWithOfferFirst() throws InterruptedException {
1124		final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
1125	<	Thread t = new Thread(new Runnable() {
1126	<	public void run() {
1127	<	try {
1128	<	threadAssertNull(q.pollFirst(SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
1129	<	q.pollFirst(LONG_DELAY_MS, TimeUnit.MILLISECONDS);
1130	<	q.pollFirst(LONG_DELAY_MS, TimeUnit.MILLISECONDS);
1131	<	threadShouldThrow();
1132	<	} catch (InterruptedException success) { }
1133	<	}
1134	<	});
1135	<	try {
1136	<	t.start();
1137	<	Thread.sleep(SMALL_DELAY_MS);
1138	<	assertTrue(q.offerFirst(zero, SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
1139	<	t.interrupt();
1140	<	t.join();
1141	<	} catch (Exception e){
1142	<	unexpectedException();
1143	<	}
1125	>	final CheckedBarrier barrier = new CheckedBarrier(2);
1126	>	Thread t = newStartedThread(new CheckedRunnable() {
1127	>	public void realRun() throws InterruptedException {
1128	>	long startTime = System.nanoTime();
1129	>	assertNull(q.pollFirst(timeoutMillis(), MILLISECONDS));
1130	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
1131	>
1132	>	barrier.await();
1133	>
1134	>	assertSame(zero, q.pollFirst(LONG_DELAY_MS, MILLISECONDS));
1135	>
1136	>	Thread.currentThread().interrupt();
1137	>	try {
1138	>	q.pollFirst(randomTimeout(), randomTimeUnit());
1139	>	shouldThrow();
1140	>	} catch (InterruptedException success) {}
1141	>
1142	>	barrier.await();
1143	>	try {
1144	>	q.pollFirst(LONG_DELAY_MS, MILLISECONDS);
1145	>	shouldThrow();
1146	>	} catch (InterruptedException success) {}
1147	>	assertFalse(Thread.interrupted());
1148	>
1149	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1150	>	}});
1151	>
1152	>	barrier.await();
1153	>	long startTime = System.nanoTime();
1154	>	assertTrue(q.offerFirst(zero, LONG_DELAY_MS, MILLISECONDS));
1155	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1156	>	barrier.await();
1157	>	if (randomBoolean()) assertThreadBlocks(t, Thread.State.TIMED_WAITING);
1158	>	t.interrupt();
1159	>	awaitTermination(t);
1160		}
1161
1162		/**
1163		* putLast(null) throws NPE
1164		*/
1165	<	public void testPutLastNull() {
1166	<	try {
1167	<	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
1165	>	public void testPutLastNull() throws InterruptedException {
1166	>	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
1167	>	try {
1168		q.putLast(null);
1169		shouldThrow();
1170	<	}
1171	<	catch (NullPointerException success){
1132	<	}
1133	<	catch (InterruptedException ie) {
1134	<	unexpectedException();
1135	<	}
1136	<	}
1170	>	} catch (NullPointerException success) {}
1171	>	}
1172
1173		/**
1174		* all elements successfully putLast are contained
1175		*/
1176	<	public void testPutLast() {
1177	<	try {
1178	<	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
1179	<	for (int i = 0; i < SIZE; ++i) {
1180	<	Integer I = new Integer(i);
1181	<	q.putLast(I);
1147	<	assertTrue(q.contains(I));
1148	<	}
1149	<	assertEquals(0, q.remainingCapacity());
1150	<	}
1151	<	catch (InterruptedException ie) {
1152	<	unexpectedException();
1176	>	public void testPutLast() throws InterruptedException {
1177	>	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
1178	>	for (int i = 0; i < SIZE; ++i) {
1179	>	Integer x = new Integer(i);
1180	>	q.putLast(x);
1181	>	assertTrue(q.contains(x));
1182		}
1183	+	assertEquals(0, q.remainingCapacity());
1184		}
1185
1186		/**
1187		* putLast blocks interruptibly if full
1188		*/
1189	<	public void testBlockingPutLast() {
1190	<	Thread t = new Thread(new Runnable() {
1191	<	public void run() {
1192	<	int added = 0;
1193	<	try {
1194	<	LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
1195	<	for (int i = 0; i < SIZE; ++i) {
1196	<	q.putLast(new Integer(i));
1197	<	++added;
1198	<	}
1199	<	q.putLast(new Integer(SIZE));
1200	<	threadShouldThrow();
1201	<	} catch (InterruptedException ie){
1202	<	threadAssertEquals(added, SIZE);
1203	<	}
1204	<	}});
1205	<	t.start();
1206	<	try {
1207	<	Thread.sleep(SHORT_DELAY_MS);
1208	<	t.interrupt();
1209	<	t.join();
1210	<	}
1211	<	catch (InterruptedException ie) {
1212	<	unexpectedException();
1213	<	}
1189	>	public void testBlockingPutLast() throws InterruptedException {
1190	>	final LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
1191	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
1192	>	Thread t = newStartedThread(new CheckedRunnable() {
1193	>	public void realRun() throws InterruptedException {
1194	>	for (int i = 0; i < SIZE; ++i)
1195	>	q.putLast(i);
1196	>	assertEquals(SIZE, q.size());
1197	>	assertEquals(0, q.remainingCapacity());
1198	>
1199	>	Thread.currentThread().interrupt();
1200	>	try {
1201	>	q.putLast(99);
1202	>	shouldThrow();
1203	>	} catch (InterruptedException success) {}
1204	>	assertFalse(Thread.interrupted());
1205	>
1206	>	pleaseInterrupt.countDown();
1207	>	try {
1208	>	q.putLast(99);
1209	>	shouldThrow();
1210	>	} catch (InterruptedException success) {}
1211	>	assertFalse(Thread.interrupted());
1212	>	}});
1213	>
1214	>	await(pleaseInterrupt);
1215	>	if (randomBoolean()) assertThreadBlocks(t, Thread.State.WAITING);
1216	>	t.interrupt();
1217	>	awaitTermination(t);
1218	>	assertEquals(SIZE, q.size());
1219	>	assertEquals(0, q.remainingCapacity());
1220		}
1221
1222		/**
1223	<	* putLast blocks waiting for take when full
1223	>	* putLast blocks interruptibly waiting for take when full
1224		*/
1225	<	public void testPutLastWithTake() {
1226	<	final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
1227	<	Thread t = new Thread(new Runnable() {
1228	<	public void run() {
1229	<	int added = 0;
1230	<	try {
1231	<	q.putLast(new Object());
1232	<	++added;
1233	<	q.putLast(new Object());
1234	<	++added;
1235	<	q.putLast(new Object());
1236	<	++added;
1237	<	q.putLast(new Object());
1238	<	++added;
1239	<	threadShouldThrow();
1240	<	} catch (InterruptedException e){
1241	<	threadAssertTrue(added >= 2);
1242	<	}
1243	<	}
1244	<	});
1245	<	try {
1246	<	t.start();
1247	<	Thread.sleep(SHORT_DELAY_MS);
1248	<	q.take();
1249	<	t.interrupt();
1250	<	t.join();
1251	<	} catch (Exception e){
1252	<	unexpectedException();
1253	<	}
1225	>	public void testPutLastWithTake() throws InterruptedException {
1226	>	final int capacity = 2;
1227	>	final LinkedBlockingDeque q = new LinkedBlockingDeque(capacity);
1228	>	final CountDownLatch pleaseTake = new CountDownLatch(1);
1229	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
1230	>	Thread t = newStartedThread(new CheckedRunnable() {
1231	>	public void realRun() throws InterruptedException {
1232	>	for (int i = 0; i < capacity; i++)
1233	>	q.putLast(i);
1234	>	pleaseTake.countDown();
1235	>	q.putLast(86);
1236	>
1237	>	Thread.currentThread().interrupt();
1238	>	try {
1239	>	q.putLast(99);
1240	>	shouldThrow();
1241	>	} catch (InterruptedException success) {}
1242	>	assertFalse(Thread.interrupted());
1243	>
1244	>	pleaseInterrupt.countDown();
1245	>	try {
1246	>	q.putLast(99);
1247	>	shouldThrow();
1248	>	} catch (InterruptedException success) {}
1249	>	assertFalse(Thread.interrupted());
1250	>	}});
1251	>
1252	>	await(pleaseTake);
1253	>	assertEquals(0, q.remainingCapacity());
1254	>	assertEquals(0, q.take());
1255	>
1256	>	await(pleaseInterrupt);
1257	>	if (randomBoolean()) assertThreadBlocks(t, Thread.State.WAITING);
1258	>	t.interrupt();
1259	>	awaitTermination(t);
1260	>	assertEquals(0, q.remainingCapacity());
1261		}
1262
1263		/**
#	Line 1222 | Line 1265 | public class LinkedBlockingDequeTest ext
1265		*/
1266		public void testTimedOfferLast() {
1267		final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
1268	<	Thread t = new Thread(new Runnable() {
1269	<	public void run() {
1270	<	try {
1271	<	q.putLast(new Object());
1272	<	q.putLast(new Object());
1273	<	threadAssertFalse(q.offerLast(new Object(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
1274	<	q.offerLast(new Object(), LONG_DELAY_MS, TimeUnit.MILLISECONDS);
1275	<	threadShouldThrow();
1276	<	} catch (InterruptedException success){}
1277	<	}
1278	<	});
1279	<
1280	<	try {
1281	<	t.start();
1282	<	Thread.sleep(SMALL_DELAY_MS);
1283	<	t.interrupt();
1284	<	t.join();
1285	<	} catch (Exception e){
1286	<	unexpectedException();
1287	<	}
1268	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
1269	>	Thread t = newStartedThread(new CheckedRunnable() {
1270	>	public void realRun() throws InterruptedException {
1271	>	q.putLast(new Object());
1272	>	q.putLast(new Object());
1273	>	long startTime = System.nanoTime();
1274	>
1275	>	assertFalse(q.offerLast(new Object(), timeoutMillis(), MILLISECONDS));
1276	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
1277	>
1278	>	Thread.currentThread().interrupt();
1279	>	try {
1280	>	q.offerLast(new Object(), randomTimeout(), randomTimeUnit());
1281	>	shouldThrow();
1282	>	} catch (InterruptedException success) {}
1283	>
1284	>	pleaseInterrupt.countDown();
1285	>	try {
1286	>	q.offerLast(new Object(), LONG_DELAY_MS, MILLISECONDS);
1287	>	shouldThrow();
1288	>	} catch (InterruptedException success) {}
1289	>
1290	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1291	>	}});
1292	>
1293	>	await(pleaseInterrupt);
1294	>	if (randomBoolean()) assertThreadBlocks(t, Thread.State.TIMED_WAITING);
1295	>	t.interrupt();
1296	>	awaitTermination(t);
1297		}
1298
1299		/**
1300		* takeLast retrieves elements in FIFO order
1301		*/
1302	<	public void testTakeLast() {
1303	<	try {
1304	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1305	<	for (int i = 0; i < SIZE; ++i) {
1306	<	assertEquals(SIZE-i-1, ((Integer)q.takeLast()).intValue());
1255	<	}
1256	<	} catch (InterruptedException e){
1257	<	unexpectedException();
1258	<	}
1302	>	public void testTakeLast() throws InterruptedException {
1303	>	LinkedBlockingDeque q = populatedDeque(SIZE);
1304	>	for (int i = 0; i < SIZE; ++i) {
1305	>	assertEquals(SIZE - i - 1, q.takeLast());
1306	>	}
1307		}
1308
1309		/**
1310	<	* takeLast blocks interruptibly when empty
1310	>	* takeLast removes existing elements until empty, then blocks interruptibly
1311		*/
1312	<	public void testTakeLastFromEmpty() {
1313	<	final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
1314	<	Thread t = new Thread(new Runnable() {
1315	<	public void run() {
1316	<	try {
1317	<	q.takeLast();
1318	<	threadShouldThrow();
1271	<	} catch (InterruptedException success){ }
1272	<	}
1273	<	});
1274	<	try {
1275	<	t.start();
1276	<	Thread.sleep(SHORT_DELAY_MS);
1277	<	t.interrupt();
1278	<	t.join();
1279	<	} catch (Exception e){
1280	<	unexpectedException();
1281	<	}
1282	<	}
1312	>	public void testBlockingTakeLast() throws InterruptedException {
1313	>	final LinkedBlockingDeque q = populatedDeque(SIZE);
1314	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
1315	>	Thread t = newStartedThread(new CheckedRunnable() {
1316	>	public void realRun() throws InterruptedException {
1317	>	for (int i = 0; i < SIZE; i++)
1318	>	assertEquals(SIZE - i - 1, q.takeLast());
1319
1320	<	/**
1321	<	* TakeLast removes existing elements until empty, then blocks interruptibly
1322	<	*/
1323	<	public void testBlockingTakeLast() {
1324	<	Thread t = new Thread(new Runnable() {
1325	<	public void run() {
1290	<	try {
1291	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1292	<	for (int i = 0; i < SIZE; ++i) {
1293	<	assertEquals(SIZE-i-1, ((Integer)q.takeLast()).intValue());
1294	<	}
1295	<	q.takeLast();
1296	<	threadShouldThrow();
1297	<	} catch (InterruptedException success){
1298	<	}
1299	<	}});
1300	<	t.start();
1301	<	try {
1302	<	Thread.sleep(SHORT_DELAY_MS);
1303	<	t.interrupt();
1304	<	t.join();
1305	<	}
1306	<	catch (InterruptedException ie) {
1307	<	unexpectedException();
1308	<	}
1309	<	}
1320	>	Thread.currentThread().interrupt();
1321	>	try {
1322	>	q.takeLast();
1323	>	shouldThrow();
1324	>	} catch (InterruptedException success) {}
1325	>	assertFalse(Thread.interrupted());
1326
1327	+	pleaseInterrupt.countDown();
1328	+	try {
1329	+	q.takeLast();
1330	+	shouldThrow();
1331	+	} catch (InterruptedException success) {}
1332	+	assertFalse(Thread.interrupted());
1333	+	}});
1334	+
1335	+	await(pleaseInterrupt);
1336	+	if (randomBoolean()) assertThreadBlocks(t, Thread.State.WAITING);
1337	+	t.interrupt();
1338	+	awaitTermination(t);
1339	+	}
1340
1341		/**
1342		* timed pollLast with zero timeout succeeds when non-empty, else times out
1343		*/
1344	<	public void testTimedPollLast0() {
1345	<	try {
1346	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1347	<	for (int i = 0; i < SIZE; ++i) {
1348	<	assertEquals(SIZE-i-1, ((Integer)q.pollLast(0, TimeUnit.MILLISECONDS)).intValue());
1349	<	}
1321	<	assertNull(q.pollLast(0, TimeUnit.MILLISECONDS));
1322	<	} catch (InterruptedException e){
1323	<	unexpectedException();
1324	<	}
1344	>	public void testTimedPollLast0() throws InterruptedException {
1345	>	LinkedBlockingDeque q = populatedDeque(SIZE);
1346	>	for (int i = 0; i < SIZE; ++i) {
1347	>	assertEquals(SIZE - i - 1, q.pollLast(0, MILLISECONDS));
1348	>	}
1349	>	assertNull(q.pollLast(0, MILLISECONDS));
1350		}
1351
1352		/**
1353		* timed pollLast with nonzero timeout succeeds when non-empty, else times out
1354		*/
1355	<	public void testTimedPollLast() {
1356	<	try {
1357	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1358	<	for (int i = 0; i < SIZE; ++i) {
1359	<	assertEquals(SIZE-i-1, ((Integer)q.pollLast(SHORT_DELAY_MS, TimeUnit.MILLISECONDS)).intValue());
1360	<	}
1361	<	assertNull(q.pollLast(SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
1362	<	} catch (InterruptedException e){
1363	<	unexpectedException();
1364	<	}
1355	>	public void testTimedPollLast() throws InterruptedException {
1356	>	LinkedBlockingDeque q = populatedDeque(SIZE);
1357	>	for (int i = 0; i < SIZE; ++i) {
1358	>	long startTime = System.nanoTime();
1359	>	assertEquals(SIZE - i - 1, q.pollLast(LONG_DELAY_MS, MILLISECONDS));
1360	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1361	>	}
1362	>	long startTime = System.nanoTime();
1363	>	assertNull(q.pollLast(timeoutMillis(), MILLISECONDS));
1364	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
1365	>	checkEmpty(q);
1366		}
1367
1368		/**
1369		* Interrupted timed pollLast throws InterruptedException instead of
1370		* returning timeout status
1371		*/
1372	<	public void testInterruptedTimedPollLast() {
1373	<	Thread t = new Thread(new Runnable() {
1374	<	public void run() {
1375	<	try {
1376	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1377	<	for (int i = 0; i < SIZE; ++i) {
1378	<	threadAssertEquals(SIZE-i-1, ((Integer)q.pollLast(SHORT_DELAY_MS, TimeUnit.MILLISECONDS)).intValue());
1379	<	}
1380	<	threadAssertNull(q.pollLast(SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
1381	<	} catch (InterruptedException success){
1382	<	}
1383	<	}});
1384	<	t.start();
1385	<	try {
1386	<	Thread.sleep(SHORT_DELAY_MS);
1387	<	t.interrupt();
1388	<	t.join();
1389	<	}
1390	<	catch (InterruptedException ie) {
1391	<	unexpectedException();
1392	<	}
1372	>	public void testInterruptedTimedPollLast() throws InterruptedException {
1373	>	final LinkedBlockingDeque q = populatedDeque(SIZE);
1374	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
1375	>	Thread t = newStartedThread(new CheckedRunnable() {
1376	>	public void realRun() throws InterruptedException {
1377	>	for (int i = 0; i < SIZE; i++)
1378	>	assertEquals(SIZE - i - 1,
1379	>	q.pollLast(LONG_DELAY_MS, MILLISECONDS));
1380	>
1381	>	Thread.currentThread().interrupt();
1382	>	try {
1383	>	q.pollLast(randomTimeout(), randomTimeUnit());
1384	>	shouldThrow();
1385	>	} catch (InterruptedException success) {}
1386	>	assertFalse(Thread.interrupted());
1387	>
1388	>	pleaseInterrupt.countDown();
1389	>	try {
1390	>	q.pollLast(LONGER_DELAY_MS, MILLISECONDS);
1391	>	shouldThrow();
1392	>	} catch (InterruptedException success) {}
1393	>	assertFalse(Thread.interrupted());
1394	>	}});
1395	>
1396	>	await(pleaseInterrupt);
1397	>	if (randomBoolean()) assertThreadBlocks(t, Thread.State.TIMED_WAITING);
1398	>	t.interrupt();
1399	>	awaitTermination(t);
1400	>	checkEmpty(q);
1401		}
1402
1403		/**
1404	<	*  timed poll before a delayed offerLast fails; after offerLast succeeds;
1405	<	*  on interruption throws
1404	>	* timed poll before a delayed offerLast fails; after offerLast succeeds;
1405	>	* on interruption throws
1406		*/
1407	<	public void testTimedPollWithOfferLast() {
1407	>	public void testTimedPollWithOfferLast() throws InterruptedException {
1408		final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
1409	<	Thread t = new Thread(new Runnable() {
1410	<	public void run() {
1411	<	try {
1412	<	threadAssertNull(q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
1413	<	q.poll(LONG_DELAY_MS, TimeUnit.MILLISECONDS);
1414	<	q.poll(LONG_DELAY_MS, TimeUnit.MILLISECONDS);
1415	<	threadShouldThrow();
1416	<	} catch (InterruptedException success) { }
1383	<	}
1384	<	});
1385	<	try {
1386	<	t.start();
1387	<	Thread.sleep(SMALL_DELAY_MS);
1388	<	assertTrue(q.offerLast(zero, SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
1389	<	t.interrupt();
1390	<	t.join();
1391	<	} catch (Exception e){
1392	<	unexpectedException();
1393	<	}
1394	<	}
1409	>	final CheckedBarrier barrier = new CheckedBarrier(2);
1410	>	Thread t = newStartedThread(new CheckedRunnable() {
1411	>	public void realRun() throws InterruptedException {
1412	>	long startTime = System.nanoTime();
1413	>	assertNull(q.poll(timeoutMillis(), MILLISECONDS));
1414	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
1415	>
1416	>	barrier.await();
1417
1418	+	assertSame(zero, q.poll(LONG_DELAY_MS, MILLISECONDS));
1419	+
1420	+	Thread.currentThread().interrupt();
1421	+	try {
1422	+	q.poll(randomTimeout(), randomTimeUnit());
1423	+	shouldThrow();
1424	+	} catch (InterruptedException success) {}
1425	+	assertFalse(Thread.interrupted());
1426	+
1427	+	barrier.await();
1428	+	try {
1429	+	q.poll(LONG_DELAY_MS, MILLISECONDS);
1430	+	shouldThrow();
1431	+	} catch (InterruptedException success) {}
1432	+	assertFalse(Thread.interrupted());
1433	+
1434	+	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1435	+	}});
1436	+
1437	+	barrier.await();
1438	+	long startTime = System.nanoTime();
1439	+	assertTrue(q.offerLast(zero, LONG_DELAY_MS, MILLISECONDS));
1440	+	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
1441	+
1442	+	barrier.await();
1443	+	if (randomBoolean()) assertThreadBlocks(t, Thread.State.TIMED_WAITING);
1444	+	t.interrupt();
1445	+	awaitTermination(t);
1446	+	}
1447
1448		/**
1449		* element returns next element, or throws NSEE if empty
#	Line 1400 | Line 1451 | public class LinkedBlockingDequeTest ext
1451		public void testElement() {
1452		LinkedBlockingDeque q = populatedDeque(SIZE);
1453		for (int i = 0; i < SIZE; ++i) {
1454	<	assertEquals(i, ((Integer)q.element()).intValue());
1454	>	assertEquals(i, q.element());
1455		q.poll();
1456		}
1457		try {
1458		q.element();
1459		shouldThrow();
1460	<	}
1410	<	catch (NoSuchElementException success) {}
1411	<	}
1412	<
1413	<	/**
1414	<	* remove(x) removes x and returns true if present
1415	<	*/
1416	<	public void testRemoveElement() {
1417	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1418	<	for (int i = 1; i < SIZE; i+=2) {
1419	<	assertTrue(q.remove(new Integer(i)));
1420	<	}
1421	<	for (int i = 0; i < SIZE; i+=2) {
1422	<	assertTrue(q.remove(new Integer(i)));
1423	<	assertFalse(q.remove(new Integer(i+1)));
1424	<	}
1425	<	assertTrue(q.isEmpty());
1460	>	} catch (NoSuchElementException success) {}
1461		}
1462
1463		/**
#	Line 1481 | Line 1516 | public class LinkedBlockingDequeTest ext
1516		assertTrue(changed);
1517
1518		assertTrue(q.containsAll(p));
1519	<	assertEquals(SIZE-i, q.size());
1519	>	assertEquals(SIZE - i, q.size());
1520		p.remove();
1521		}
1522		}
#	Line 1494 | Line 1529 | public class LinkedBlockingDequeTest ext
1529		LinkedBlockingDeque q = populatedDeque(SIZE);
1530		LinkedBlockingDeque p = populatedDeque(i);
1531		assertTrue(q.removeAll(p));
1532	<	assertEquals(SIZE-i, q.size());
1532	>	assertEquals(SIZE - i, q.size());
1533		for (int j = 0; j < i; ++j) {
1534	<	Integer I = (Integer)(p.remove());
1535	<	assertFalse(q.contains(I));
1534	>	Integer x = (Integer)(p.remove());
1535	>	assertFalse(q.contains(x));
1536		}
1537		}
1538		}
1539
1540		/**
1541	<	* toArray contains all elements
1541	>	* toArray contains all elements in FIFO order
1542		*/
1543	<	public void testToArray() {
1543	>	public void testToArray() throws InterruptedException {
1544		LinkedBlockingDeque q = populatedDeque(SIZE);
1545	<	Object[] o = q.toArray();
1546	<	try {
1547	<	for(int i = 0; i < o.length; i++)
1548	<	assertEquals(o[i], q.take());
1549	<	} catch (InterruptedException e){
1515	<	unexpectedException();
1516	<	}
1545	>	Object[] a = q.toArray();
1546	>	assertSame(Object[].class, a.getClass());
1547	>	for (Object o : a)
1548	>	assertSame(o, q.poll());
1549	>	assertTrue(q.isEmpty());
1550		}
1551
1552		/**
1553	<	* toArray(a) contains all elements
1553	>	* toArray(a) contains all elements in FIFO order
1554		*/
1555		public void testToArray2() {
1556	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1557	<	Integer[] ints = new Integer[SIZE];
1558	<	ints = (Integer[])q.toArray(ints);
1559	<	try {
1560	<	for(int i = 0; i < ints.length; i++)
1561	<	assertEquals(ints[i], q.take());
1562	<	} catch (InterruptedException e){
1530	<	unexpectedException();
1531	<	}
1556	>	LinkedBlockingDeque<Integer> q = populatedDeque(SIZE);
1557	>	Integer[] ints = new Integer[SIZE];
1558	>	Integer[] array = q.toArray(ints);
1559	>	assertSame(ints, array);
1560	>	for (Integer o : ints)
1561	>	assertSame(o, q.remove());
1562	>	assertTrue(q.isEmpty());
1563		}
1564
1565		/**
1566	<	* toArray(null) throws NPE
1566	>	* toArray(incompatible array type) throws ArrayStoreException
1567		*/
1568	<	public void testToArray_BadArg() {
1569	<	try {
1570	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1571	<	Object o[] = q.toArray(null);
1572	<	shouldThrow();
1573	<	} catch(NullPointerException success){}
1568	>	public void testToArray1_BadArg() {
1569	>	LinkedBlockingDeque q = populatedDeque(SIZE);
1570	>	try {
1571	>	q.toArray(new String[10]);
1572	>	shouldThrow();
1573	>	} catch (ArrayStoreException success) {}
1574		}
1575
1576		/**
1577	<	* toArray with incompatible array type throws CCE
1577	>	* iterator iterates through all elements
1578		*/
1579	<	public void testToArray1_BadArg() {
1580	<	try {
1581	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1582	<	Object o[] = q.toArray(new String[10] );
1583	<	shouldThrow();
1584	<	} catch(ArrayStoreException  success){}
1585	<	}
1579	>	public void testIterator() throws InterruptedException {
1580	>	LinkedBlockingDeque q = populatedDeque(SIZE);
1581	>	Iterator it = q.iterator();
1582	>	int i;
1583	>	for (i = 0; it.hasNext(); i++)
1584	>	assertTrue(q.contains(it.next()));
1585	>	assertEquals(i, SIZE);
1586	>	assertIteratorExhausted(it);
1587
1588	+	it = q.iterator();
1589	+	for (i = 0; it.hasNext(); i++)
1590	+	assertEquals(it.next(), q.take());
1591	+	assertEquals(i, SIZE);
1592	+	assertIteratorExhausted(it);
1593	+	}
1594
1595		/**
1596	<	* iterator iterates through all elements
1596	>	* iterator of empty collection has no elements
1597		*/
1598	<	public void testIterator() {
1599	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1600	<	Iterator it = q.iterator();
1601	<	try {
1564	<	while(it.hasNext()){
1565	<	assertEquals(it.next(), q.take());
1566	<	}
1567	<	} catch (InterruptedException e){
1568	<	unexpectedException();
1569	<	}
1598	>	public void testEmptyIterator() {
1599	>	Deque c = new LinkedBlockingDeque();
1600	>	assertIteratorExhausted(c.iterator());
1601	>	assertIteratorExhausted(c.descendingIterator());
1602		}
1603
1604		/**
1605		* iterator.remove removes current element
1606		*/
1607	<	public void testIteratorRemove () {
1607	>	public void testIteratorRemove() {
1608		final LinkedBlockingDeque q = new LinkedBlockingDeque(3);
1609		q.add(two);
1610		q.add(one);
#	Line 1583 | Line 1615 | public class LinkedBlockingDequeTest ext
1615		it.remove();
1616
1617		it = q.iterator();
1618	<	assertEquals(it.next(), one);
1619	<	assertEquals(it.next(), three);
1618	>	assertSame(it.next(), one);
1619	>	assertSame(it.next(), three);
1620		assertFalse(it.hasNext());
1621		}
1622
1591	–
1623		/**
1624		* iterator ordering is FIFO
1625		*/
#	Line 1600 | Line 1631 | public class LinkedBlockingDequeTest ext
1631		assertEquals(0, q.remainingCapacity());
1632		int k = 0;
1633		for (Iterator it = q.iterator(); it.hasNext();) {
1634	<	int i = ((Integer)(it.next())).intValue();
1604	<	assertEquals(++k, i);
1634	>	assertEquals(++k, it.next());
1635		}
1636		assertEquals(3, k);
1637		}
#	Line 1609 | Line 1639 | public class LinkedBlockingDequeTest ext
1639		/**
1640		* Modifications do not cause iterators to fail
1641		*/
1642	<	public void testWeaklyConsistentIteration () {
1642	>	public void testWeaklyConsistentIteration() {
1643		final LinkedBlockingDeque q = new LinkedBlockingDeque(3);
1644		q.add(one);
1645		q.add(two);
1646		q.add(three);
1647	<	try {
1648	<	for (Iterator it = q.iterator(); it.hasNext();) {
1649	<	q.remove();
1620	<	it.next();
1621	<	}
1622	<	}
1623	<	catch (ConcurrentModificationException e) {
1624	<	unexpectedException();
1647	>	for (Iterator it = q.iterator(); it.hasNext();) {
1648	>	q.remove();
1649	>	it.next();
1650		}
1651		assertEquals(0, q.size());
1652		}
1653
1629	–
1654		/**
1655	<	*  Descending iterator iterates through all elements
1655	>	* Descending iterator iterates through all elements
1656		*/
1657		public void testDescendingIterator() {
1658		LinkedBlockingDeque q = populatedDeque(SIZE);
1659		int i = 0;
1660	<	Iterator it = q.descendingIterator();
1661	<	while(it.hasNext()) {
1660	>	Iterator it = q.descendingIterator();
1661	>	while (it.hasNext()) {
1662		assertTrue(q.contains(it.next()));
1663		++i;
1664		}
#	Line 1642 | Line 1666 | public class LinkedBlockingDequeTest ext
1666		assertFalse(it.hasNext());
1667		try {
1668		it.next();
1669	<	} catch(NoSuchElementException success) {
1670	<	}
1669	>	shouldThrow();
1670	>	} catch (NoSuchElementException success) {}
1671		}
1672
1673		/**
1674	<	*  Descending iterator ordering is reverse FIFO
1674	>	* Descending iterator ordering is reverse FIFO
1675		*/
1676		public void testDescendingIteratorOrdering() {
1677		final LinkedBlockingDeque q = new LinkedBlockingDeque();
#	Line 1657 | Line 1681 | public class LinkedBlockingDequeTest ext
1681		q.add(new Integer(1));
1682		int k = 0;
1683		for (Iterator it = q.descendingIterator(); it.hasNext();) {
1684	<	int i = ((Integer)(it.next())).intValue();
1661	<	assertEquals(++k, i);
1684	>	assertEquals(++k, it.next());
1685		}
1686
1687		assertEquals(3, k);
#	Line 1671 | Line 1694 | public class LinkedBlockingDequeTest ext
1694		/**
1695		* descendingIterator.remove removes current element
1696		*/
1697	<	public void testDescendingIteratorRemove () {
1697	>	public void testDescendingIteratorRemove() {
1698		final LinkedBlockingDeque q = new LinkedBlockingDeque();
1699		for (int iters = 0; iters < 100; ++iters) {
1700		q.add(new Integer(3));
#	Line 1690 | Line 1713 | public class LinkedBlockingDequeTest ext
1713		}
1714		}
1715
1693	–
1716		/**
1717		* toString contains toStrings of elements
1718		*/
#	Line 1698 | Line 1720 | public class LinkedBlockingDequeTest ext
1720		LinkedBlockingDeque q = populatedDeque(SIZE);
1721		String s = q.toString();
1722		for (int i = 0; i < SIZE; ++i) {
1723	<	assertTrue(s.indexOf(String.valueOf(i)) >= 0);
1723	>	assertTrue(s.contains(String.valueOf(i)));
1724		}
1725		}
1726
1705	–
1727		/**
1728		* offer transfers elements across Executor tasks
1729		*/
#	Line 1710 | Line 1731 | public class LinkedBlockingDequeTest ext
1731		final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
1732		q.add(one);
1733		q.add(two);
1734	<	ExecutorService executor = Executors.newFixedThreadPool(2);
1735	<	executor.execute(new Runnable() {
1736	<	public void run() {
1737	<	threadAssertFalse(q.offer(three));
1738	<	try {
1739	<	threadAssertTrue(q.offer(three, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS));
1740	<	threadAssertEquals(0, q.remainingCapacity());
1741	<	}
1742	<	catch (InterruptedException e) {
1743	<	threadUnexpectedException();
1723	<	}
1724	<	}
1725	<	});
1726	<
1727	<	executor.execute(new Runnable() {
1728	<	public void run() {
1729	<	try {
1730	<	Thread.sleep(SMALL_DELAY_MS);
1731	<	threadAssertEquals(one, q.take());
1732	<	}
1733	<	catch (InterruptedException e) {
1734	<	threadUnexpectedException();
1735	<	}
1736	<	}
1737	<	});
1734	>	final CheckedBarrier threadsStarted = new CheckedBarrier(2);
1735	>	final ExecutorService executor = Executors.newFixedThreadPool(2);
1736	>	try (PoolCleaner cleaner = cleaner(executor)) {
1737	>	executor.execute(new CheckedRunnable() {
1738	>	public void realRun() throws InterruptedException {
1739	>	assertFalse(q.offer(three));
1740	>	threadsStarted.await();
1741	>	assertTrue(q.offer(three, LONG_DELAY_MS, MILLISECONDS));
1742	>	assertEquals(0, q.remainingCapacity());
1743	>	}});
1744
1745	<	joinPool(executor);
1745	>	executor.execute(new CheckedRunnable() {
1746	>	public void realRun() throws InterruptedException {
1747	>	threadsStarted.await();
1748	>	assertSame(one, q.take());
1749	>	}});
1750	>	}
1751		}
1752
1753		/**
1754	<	* poll retrieves elements across Executor threads
1754	>	* timed poll retrieves elements across Executor threads
1755		*/
1756		public void testPollInExecutor() {
1757		final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
1758	<	ExecutorService executor = Executors.newFixedThreadPool(2);
1759	<	executor.execute(new Runnable() {
1760	<	public void run() {
1761	<	threadAssertNull(q.poll());
1762	<	try {
1763	<	threadAssertTrue(null != q.poll(MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS));
1764	<	threadAssertTrue(q.isEmpty());
1765	<	}
1766	<	catch (InterruptedException e) {
1767	<	threadUnexpectedException();
1757	<	}
1758	<	}
1759	<	});
1758	>	final CheckedBarrier threadsStarted = new CheckedBarrier(2);
1759	>	final ExecutorService executor = Executors.newFixedThreadPool(2);
1760	>	try (PoolCleaner cleaner = cleaner(executor)) {
1761	>	executor.execute(new CheckedRunnable() {
1762	>	public void realRun() throws InterruptedException {
1763	>	assertNull(q.poll());
1764	>	threadsStarted.await();
1765	>	assertSame(one, q.poll(LONG_DELAY_MS, MILLISECONDS));
1766	>	checkEmpty(q);
1767	>	}});
1768
1769	<	executor.execute(new Runnable() {
1770	<	public void run() {
1771	<	try {
1764	<	Thread.sleep(SMALL_DELAY_MS);
1769	>	executor.execute(new CheckedRunnable() {
1770	>	public void realRun() throws InterruptedException {
1771	>	threadsStarted.await();
1772		q.put(one);
1773	<	}
1767	<	catch (InterruptedException e) {
1768	<	threadUnexpectedException();
1769	<	}
1770	<	}
1771	<	});
1772	<
1773	<	joinPool(executor);
1774	<	}
1775	<
1776	<	/**
1777	<	* A deserialized serialized deque has same elements in same order
1778	<	*/
1779	<	public void testSerialization() {
1780	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1781	<
1782	<	try {
1783	<	ByteArrayOutputStream bout = new ByteArrayOutputStream(10000);
1784	<	ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout));
1785	<	out.writeObject(q);
1786	<	out.close();
1787	<
1788	<	ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray());
1789	<	ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin));
1790	<	LinkedBlockingDeque r = (LinkedBlockingDeque)in.readObject();
1791	<	assertEquals(q.size(), r.size());
1792	<	while (!q.isEmpty())
1793	<	assertEquals(q.remove(), r.remove());
1794	<	} catch(Exception e){
1795	<	unexpectedException();
1796	<	}
1797	<	}
1798	<
1799	<	/**
1800	<	* drainTo(null) throws NPE
1801	<	*/
1802	<	public void testDrainToNull() {
1803	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1804	<	try {
1805	<	q.drainTo(null);
1806	<	shouldThrow();
1807	<	} catch(NullPointerException success) {
1773	>	}});
1774		}
1775		}
1776
1777		/**
1778	<	* drainTo(this) throws IAE
1778	>	* A deserialized/reserialized deque has same elements in same order
1779		*/
1780	<	public void testDrainToSelf() {
1781	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1782	<	try {
1783	<	q.drainTo(q);
1784	<	shouldThrow();
1785	<	} catch(IllegalArgumentException success) {
1780	>	public void testSerialization() throws Exception {
1781	>	Queue x = populatedDeque(SIZE);
1782	>	Queue y = serialClone(x);
1783	>
1784	>	assertNotSame(y, x);
1785	>	assertEquals(x.size(), y.size());
1786	>	assertEquals(x.toString(), y.toString());
1787	>	assertTrue(Arrays.equals(x.toArray(), y.toArray()));
1788	>	while (!x.isEmpty()) {
1789	>	assertFalse(y.isEmpty());
1790	>	assertEquals(x.remove(), y.remove());
1791		}
1792	+	assertTrue(y.isEmpty());
1793		}
1794
1795		/**
#	Line 1827 | Line 1799 | public class LinkedBlockingDequeTest ext
1799		LinkedBlockingDeque q = populatedDeque(SIZE);
1800		ArrayList l = new ArrayList();
1801		q.drainTo(l);
1802	<	assertEquals(q.size(), 0);
1803	<	assertEquals(l.size(), SIZE);
1802	>	assertEquals(0, q.size());
1803	>	assertEquals(SIZE, l.size());
1804		for (int i = 0; i < SIZE; ++i)
1805		assertEquals(l.get(i), new Integer(i));
1806		q.add(zero);
#	Line 1838 | Line 1810 | public class LinkedBlockingDequeTest ext
1810		assertTrue(q.contains(one));
1811		l.clear();
1812		q.drainTo(l);
1813	<	assertEquals(q.size(), 0);
1814	<	assertEquals(l.size(), 2);
1813	>	assertEquals(0, q.size());
1814	>	assertEquals(2, l.size());
1815		for (int i = 0; i < 2; ++i)
1816		assertEquals(l.get(i), new Integer(i));
1817		}
#	Line 1847 | Line 1819 | public class LinkedBlockingDequeTest ext
1819		/**
1820		* drainTo empties full deque, unblocking a waiting put.
1821		*/
1822	<	public void testDrainToWithActivePut() {
1822	>	public void testDrainToWithActivePut() throws InterruptedException {
1823		final LinkedBlockingDeque q = populatedDeque(SIZE);
1824	<	Thread t = new Thread(new Runnable() {
1825	<	public void run() {
1826	<	try {
1827	<	q.put(new Integer(SIZE+1));
1856	<	} catch (InterruptedException ie){
1857	<	threadUnexpectedException();
1858	<	}
1859	<	}
1860	<	});
1861	<	try {
1862	<	t.start();
1863	<	ArrayList l = new ArrayList();
1864	<	q.drainTo(l);
1865	<	assertTrue(l.size() >= SIZE);
1866	<	for (int i = 0; i < SIZE; ++i)
1867	<	assertEquals(l.get(i), new Integer(i));
1868	<	t.join();
1869	<	assertTrue(q.size() + l.size() >= SIZE);
1870	<	} catch(Exception e){
1871	<	unexpectedException();
1872	<	}
1873	<	}
1874	<
1875	<	/**
1876	<	* drainTo(null, n) throws NPE
1877	<	*/
1878	<	public void testDrainToNullN() {
1879	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1880	<	try {
1881	<	q.drainTo(null, 0);
1882	<	shouldThrow();
1883	<	} catch(NullPointerException success) {
1884	<	}
1885	<	}
1824	>	Thread t = new Thread(new CheckedRunnable() {
1825	>	public void realRun() throws InterruptedException {
1826	>	q.put(new Integer(SIZE + 1));
1827	>	}});
1828
1829	<	/**
1830	<	* drainTo(this, n) throws IAE
1831	<	*/
1832	<	public void testDrainToSelfN() {
1833	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1834	<	try {
1835	<	q.drainTo(q, 0);
1836	<	shouldThrow();
1895	<	} catch(IllegalArgumentException success) {
1896	<	}
1829	>	t.start();
1830	>	ArrayList l = new ArrayList();
1831	>	q.drainTo(l);
1832	>	assertTrue(l.size() >= SIZE);
1833	>	for (int i = 0; i < SIZE; ++i)
1834	>	assertEquals(l.get(i), new Integer(i));
1835	>	t.join();
1836	>	assertTrue(q.size() + l.size() >= SIZE);
1837		}
1838
1839		/**
1840	<	* drainTo(c, n) empties first max {n, size} elements of deque into c
1840	>	* drainTo(c, n) empties first min(n, size) elements of queue into c
1841		*/
1842		public void testDrainToN() {
1843		LinkedBlockingDeque q = new LinkedBlockingDeque();
1844		for (int i = 0; i < SIZE + 2; ++i) {
1845	<	for(int j = 0; j < SIZE; j++)
1845	>	for (int j = 0; j < SIZE; j++)
1846		assertTrue(q.offer(new Integer(j)));
1847		ArrayList l = new ArrayList();
1848		q.drainTo(l, i);
1849	<	int k = (i < SIZE)? i : SIZE;
1850	<	assertEquals(l.size(), k);
1851	<	assertEquals(q.size(), SIZE-k);
1849	>	int k = (i < SIZE) ? i : SIZE;
1850	>	assertEquals(k, l.size());
1851	>	assertEquals(SIZE - k, q.size());
1852		for (int j = 0; j < k; ++j)
1853		assertEquals(l.get(j), new Integer(j));
1854	<	while (q.poll() != null) ;
1854	>	do {} while (q.poll() != null);
1855	>	}
1856	>	}
1857	>
1858	>	/**
1859	>	* remove(null), contains(null) always return false
1860	>	*/
1861	>	public void testNeverContainsNull() {
1862	>	Deque<?>[] qs = {
1863	>	new LinkedBlockingDeque<Object>(),
1864	>	populatedDeque(2),
1865	>	};
1866	>
1867	>	for (Deque<?> q : qs) {
1868	>	assertFalse(q.contains(null));
1869	>	assertFalse(q.remove(null));
1870	>	assertFalse(q.removeFirstOccurrence(null));
1871	>	assertFalse(q.removeLastOccurrence(null));
1872		}
1873		}
1874

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