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Comparing jsr166/src/test/tck/ArrayBlockingQueueTest.java (file contents):
Revision 1.9 by dl, Wed Jan 7 01:13:50 2004 UTC vs.
Revision 1.41 by jsr166, Fri Nov 5 00:17:22 2010 UTC

#	Line 2 | Line 2
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
5	<	* Other contributors include Andrew Wright, Jeffrey Hayes,
6	<	* Pat Fisher, Mike Judd.
5	>	* Other contributors include Andrew Wright, Jeffrey Hayes,
6	>	* Pat Fisher, Mike Judd.
7		*/
8
9
10		import junit.framework.*;
11		import java.util.*;
12		import java.util.concurrent.*;
13	+	import static java.util.concurrent.TimeUnit.MILLISECONDS;
14		import java.io.*;
15
16		public class ArrayBlockingQueueTest extends JSR166TestCase {
17	+
18	+	public static class Fair extends BlockingQueueTest {
19	+	protected BlockingQueue emptyCollection() {
20	+	return new ArrayBlockingQueue(20, true);
21	+	}
22	+	}
23	+
24	+	public static class NonFair extends BlockingQueueTest {
25	+	protected BlockingQueue emptyCollection() {
26	+	return new ArrayBlockingQueue(20, false);
27	+	}
28	+	}
29	+
30		public static void main(String[] args) {
31	<	junit.textui.TestRunner.run (suite());
31	>	junit.textui.TestRunner.run(suite());
32		}
33	+
34		public static Test suite() {
35	<	return new TestSuite(ArrayBlockingQueueTest.class);
35	>	return newTestSuite(ArrayBlockingQueueTest.class,
36	>	new Fair().testSuite(),
37	>	new NonFair().testSuite());
38		}
39
40		/**
41		* Create a queue of given size containing consecutive
42		* Integers 0 ... n.
43		*/
44	<	private ArrayBlockingQueue populatedQueue(int n) {
45	<	ArrayBlockingQueue q = new ArrayBlockingQueue(n);
44	>	private ArrayBlockingQueue<Integer> populatedQueue(int n) {
45	>	ArrayBlockingQueue<Integer> q = new ArrayBlockingQueue<Integer>(n);
46		assertTrue(q.isEmpty());
47	<	for(int i = 0; i < n; i++)
48	<	assertTrue(q.offer(new Integer(i)));
47	>	for (int i = 0; i < n; i++)
48	>	assertTrue(q.offer(new Integer(i)));
49		assertFalse(q.isEmpty());
50		assertEquals(0, q.remainingCapacity());
51	<	assertEquals(n, q.size());
51	>	assertEquals(n, q.size());
52		return q;
53		}
54	<
54	>
55		/**
56		* A new queue has the indicated capacity
57		*/
#	Line 43 | Line 60 | public class ArrayBlockingQueueTest exte
60		}
61
62		/**
63	<	* Constructor throws IAE if  capacity argument nonpositive
63	>	* Constructor throws IAE if capacity argument nonpositive
64		*/
65		public void testConstructor2() {
66		try {
67		ArrayBlockingQueue q = new ArrayBlockingQueue(0);
68		shouldThrow();
69	<	}
53	<	catch (IllegalArgumentException success) {}
69	>	} catch (IllegalArgumentException success) {}
70		}
71
72		/**
#	Line 60 | Line 76 | public class ArrayBlockingQueueTest exte
76		try {
77		ArrayBlockingQueue q = new ArrayBlockingQueue(1, true, null);
78		shouldThrow();
79	<	}
64	<	catch (NullPointerException success) {}
79	>	} catch (NullPointerException success) {}
80		}
81
82		/**
#	Line 72 | Line 87 | public class ArrayBlockingQueueTest exte
87		Integer[] ints = new Integer[SIZE];
88		ArrayBlockingQueue q = new ArrayBlockingQueue(SIZE, false, Arrays.asList(ints));
89		shouldThrow();
90	<	}
76	<	catch (NullPointerException success) {}
90	>	} catch (NullPointerException success) {}
91		}
92
93		/**
#	Line 86 | Line 100 | public class ArrayBlockingQueueTest exte
100		ints[i] = new Integer(i);
101		ArrayBlockingQueue q = new ArrayBlockingQueue(SIZE, false, Arrays.asList(ints));
102		shouldThrow();
103	<	}
90	<	catch (NullPointerException success) {}
103	>	} catch (NullPointerException success) {}
104		}
105
106		/**
#	Line 100 | Line 113 | public class ArrayBlockingQueueTest exte
113		ints[i] = new Integer(i);
114		ArrayBlockingQueue q = new ArrayBlockingQueue(1, false, Arrays.asList(ints));
115		shouldThrow();
116	<	}
104	<	catch (IllegalArgumentException success) {}
116	>	} catch (IllegalArgumentException success) {}
117		}
118
119		/**
120		* Queue contains all elements of collection used to initialize
121		*/
122		public void testConstructor7() {
123	<	try {
124	<	Integer[] ints = new Integer[SIZE];
125	<	for (int i = 0; i < SIZE; ++i)
126	<	ints[i] = new Integer(i);
127	<	ArrayBlockingQueue q = new ArrayBlockingQueue(SIZE, true, Arrays.asList(ints));
128	<	for (int i = 0; i < SIZE; ++i)
117	<	assertEquals(ints[i], q.poll());
118	<	}
119	<	finally {}
123	>	Integer[] ints = new Integer[SIZE];
124	>	for (int i = 0; i < SIZE; ++i)
125	>	ints[i] = new Integer(i);
126	>	ArrayBlockingQueue q = new ArrayBlockingQueue(SIZE, true, Arrays.asList(ints));
127	>	for (int i = 0; i < SIZE; ++i)
128	>	assertEquals(ints[i], q.poll());
129		}
130
131		/**
#	Line 152 | Line 161 | public class ArrayBlockingQueueTest exte
161		}
162
163		/**
164	<	*  offer(null) throws NPE
164	>	* offer(null) throws NPE
165		*/
166		public void testOfferNull() {
167	<	try {
167	>	try {
168		ArrayBlockingQueue q = new ArrayBlockingQueue(1);
169		q.offer(null);
170		shouldThrow();
171	<	} catch (NullPointerException success) { }
171	>	} catch (NullPointerException success) {}
172		}
173
174		/**
175	<	*  add(null) throws NPE
175	>	* add(null) throws NPE
176		*/
177		public void testAddNull() {
178	<	try {
178	>	try {
179		ArrayBlockingQueue q = new ArrayBlockingQueue(1);
180		q.add(null);
181		shouldThrow();
182	<	} catch (NullPointerException success) { }
182	>	} catch (NullPointerException success) {}
183		}
184
185		/**
#	Line 186 | Line 195 | public class ArrayBlockingQueueTest exte
195		* add succeeds if not full; throws ISE if full
196		*/
197		public void testAdd() {
198	<	try {
198	>	try {
199		ArrayBlockingQueue q = new ArrayBlockingQueue(SIZE);
200		for (int i = 0; i < SIZE; ++i) {
201		assertTrue(q.add(new Integer(i)));
202		}
203		assertEquals(0, q.remainingCapacity());
204		q.add(new Integer(SIZE));
205	<	} catch (IllegalStateException success){
206	<	}
205	>	shouldThrow();
206	>	} catch (IllegalStateException success) {}
207		}
208
209		/**
210	<	*  addAll(null) throws NPE
210	>	* addAll(null) throws NPE
211		*/
212		public void testAddAll1() {
213		try {
214		ArrayBlockingQueue q = new ArrayBlockingQueue(1);
215		q.addAll(null);
216		shouldThrow();
217	<	}
209	<	catch (NullPointerException success) {}
217	>	} catch (NullPointerException success) {}
218		}
219
220		/**
#	Line 217 | Line 225 | public class ArrayBlockingQueueTest exte
225		ArrayBlockingQueue q = populatedQueue(SIZE);
226		q.addAll(q);
227		shouldThrow();
228	<	}
221	<	catch (IllegalArgumentException success) {}
228	>	} catch (IllegalArgumentException success) {}
229		}
230
231
232		/**
233	<	*  addAll of a collection with null elements throws NPE
233	>	* addAll of a collection with null elements throws NPE
234		*/
235		public void testAddAll2() {
236		try {
#	Line 231 | Line 238 | public class ArrayBlockingQueueTest exte
238		Integer[] ints = new Integer[SIZE];
239		q.addAll(Arrays.asList(ints));
240		shouldThrow();
241	<	}
235	<	catch (NullPointerException success) {}
241	>	} catch (NullPointerException success) {}
242		}
243	+
244		/**
245		* addAll of a collection with any null elements throws NPE after
246		* possibly adding some elements
#	Line 246 | Line 253 | public class ArrayBlockingQueueTest exte
253		ints[i] = new Integer(i);
254		q.addAll(Arrays.asList(ints));
255		shouldThrow();
256	<	}
250	<	catch (NullPointerException success) {}
256	>	} catch (NullPointerException success) {}
257		}
258	+
259		/**
260		* addAll throws ISE if not enough room
261		*/
#	Line 260 | Line 267 | public class ArrayBlockingQueueTest exte
267		ints[i] = new Integer(i);
268		q.addAll(Arrays.asList(ints));
269		shouldThrow();
270	<	}
264	<	catch (IllegalStateException success) {}
270	>	} catch (IllegalStateException success) {}
271		}
272	+
273		/**
274		* Queue contains all elements, in traversal order, of successful addAll
275		*/
276		public void testAddAll5() {
277	<	try {
278	<	Integer[] empty = new Integer[0];
279	<	Integer[] ints = new Integer[SIZE];
280	<	for (int i = 0; i < SIZE; ++i)
281	<	ints[i] = new Integer(i);
282	<	ArrayBlockingQueue q = new ArrayBlockingQueue(SIZE);
283	<	assertFalse(q.addAll(Arrays.asList(empty)));
284	<	assertTrue(q.addAll(Arrays.asList(ints)));
285	<	for (int i = 0; i < SIZE; ++i)
279	<	assertEquals(ints[i], q.poll());
280	<	}
281	<	finally {}
277	>	Integer[] empty = new Integer[0];
278	>	Integer[] ints = new Integer[SIZE];
279	>	for (int i = 0; i < SIZE; ++i)
280	>	ints[i] = new Integer(i);
281	>	ArrayBlockingQueue q = new ArrayBlockingQueue(SIZE);
282	>	assertFalse(q.addAll(Arrays.asList(empty)));
283	>	assertTrue(q.addAll(Arrays.asList(ints)));
284	>	for (int i = 0; i < SIZE; ++i)
285	>	assertEquals(ints[i], q.poll());
286		}
287
288		/**
289	<	*  put(null) throws NPE
289	>	* put(null) throws NPE
290		*/
291	<	public void testPutNull() {
292	<	try {
291	>	public void testPutNull() throws InterruptedException {
292	>	try {
293		ArrayBlockingQueue q = new ArrayBlockingQueue(SIZE);
294		q.put(null);
295		shouldThrow();
296	<	}
293	<	catch (NullPointerException success){
294	<	}
295	<	catch (InterruptedException ie) {
296	<	unexpectedException();
297	<	}
296	>	} catch (NullPointerException success) {}
297		}
298
299		/**
300		* all elements successfully put are contained
301		*/
302	<	public void testPut() {
303	<	try {
304	<	ArrayBlockingQueue q = new ArrayBlockingQueue(SIZE);
305	<	for (int i = 0; i < SIZE; ++i) {
306	<	Integer I = new Integer(i);
307	<	q.put(I);
309	<	assertTrue(q.contains(I));
310	<	}
311	<	assertEquals(0, q.remainingCapacity());
312	<	}
313	<	catch (InterruptedException ie) {
314	<	unexpectedException();
302	>	public void testPut() throws InterruptedException {
303	>	ArrayBlockingQueue q = new ArrayBlockingQueue(SIZE);
304	>	for (int i = 0; i < SIZE; ++i) {
305	>	Integer I = new Integer(i);
306	>	q.put(I);
307	>	assertTrue(q.contains(I));
308		}
309	+	assertEquals(0, q.remainingCapacity());
310		}
311
312		/**
313		* put blocks interruptibly if full
314		*/
315	<	public void testBlockingPut() {
316	<	Thread t = new Thread(new Runnable() {
317	<	public void run() {
318	<	int added = 0;
319	<	try {
320	<	ArrayBlockingQueue q = new ArrayBlockingQueue(SIZE);
321	<	for (int i = 0; i < SIZE; ++i) {
322	<	q.put(new Integer(i));
323	<	++added;
324	<	}
325	<	q.put(new Integer(SIZE));
326	<	threadShouldThrow();
327	<	} catch (InterruptedException ie){
328	<	threadAssertEquals(added, SIZE);
329	<	}
330	<	}});
331	<	try {
332	<	t.start();
333	<	Thread.sleep(SHORT_DELAY_MS);
334	<	t.interrupt();
341	<	t.join();
342	<	}
343	<	catch (InterruptedException ie) {
344	<	unexpectedException();
345	<	}
315	>	public void testBlockingPut() throws InterruptedException {
316	>	final ArrayBlockingQueue q = new ArrayBlockingQueue(SIZE);
317	>	Thread t = new Thread(new CheckedRunnable() {
318	>	public void realRun() throws InterruptedException {
319	>	for (int i = 0; i < SIZE; ++i)
320	>	q.put(i);
321	>	assertEquals(SIZE, q.size());
322	>	assertEquals(0, q.remainingCapacity());
323	>	try {
324	>	q.put(99);
325	>	shouldThrow();
326	>	} catch (InterruptedException success) {}
327	>	}});
328	>
329	>	t.start();
330	>	Thread.sleep(SHORT_DELAY_MS);
331	>	t.interrupt();
332	>	t.join();
333	>	assertEquals(SIZE, q.size());
334	>	assertEquals(0, q.remainingCapacity());
335		}
336
337		/**
338		* put blocks waiting for take when full
339		*/
340	<	public void testPutWithTake() {
341	<	final ArrayBlockingQueue q = new ArrayBlockingQueue(2);
342	<	Thread t = new Thread(new Runnable() {
343	<	public void run() {
344	<	int added = 0;
345	<	try {
346	<	q.put(new Object());
347	<	++added;
348	<	q.put(new Object());
349	<	++added;
350	<	q.put(new Object());
351	<	++added;
352	<	q.put(new Object());
353	<	++added;
354	<	threadShouldThrow();
355	<	} catch (InterruptedException e){
356	<	threadAssertTrue(added >= 2);
357	<	}
358	<	}
359	<	});
360	<	try {
372	<	t.start();
373	<	Thread.sleep(SHORT_DELAY_MS);
374	<	q.take();
375	<	t.interrupt();
376	<	t.join();
377	<	} catch (Exception e){
378	<	unexpectedException();
379	<	}
340	>	public void testPutWithTake() throws InterruptedException {
341	>	final int capacity = 2;
342	>	final ArrayBlockingQueue q = new ArrayBlockingQueue(capacity);
343	>	Thread t = new Thread(new CheckedRunnable() {
344	>	public void realRun() throws InterruptedException {
345	>	for (int i = 0; i < capacity + 1; i++)
346	>	q.put(i);
347	>	try {
348	>	q.put(99);
349	>	shouldThrow();
350	>	} catch (InterruptedException success) {}
351	>	}});
352	>
353	>	t.start();
354	>	Thread.sleep(SHORT_DELAY_MS);
355	>	assertEquals(q.remainingCapacity(), 0);
356	>	assertEquals(0, q.take());
357	>	Thread.sleep(SHORT_DELAY_MS);
358	>	t.interrupt();
359	>	t.join();
360	>	assertEquals(q.remainingCapacity(), 0);
361		}
362
363		/**
364		* timed offer times out if full and elements not taken
365		*/
366	<	public void testTimedOffer() {
366	>	public void testTimedOffer() throws InterruptedException {
367		final ArrayBlockingQueue q = new ArrayBlockingQueue(2);
368	<	Thread t = new Thread(new Runnable() {
369	<	public void run() {
370	<	try {
371	<	q.put(new Object());
372	<	q.put(new Object());
373	<	threadAssertFalse(q.offer(new Object(), SHORT_DELAY_MS/2, TimeUnit.MILLISECONDS));
374	<	q.offer(new Object(), LONG_DELAY_MS, TimeUnit.MILLISECONDS);
375	<	threadShouldThrow();
376	<	} catch (InterruptedException success){}
377	<	}
378	<	});
379	<
380	<	try {
381	<	t.start();
382	<	Thread.sleep(SHORT_DELAY_MS);
402	<	t.interrupt();
403	<	t.join();
404	<	} catch (Exception e){
405	<	unexpectedException();
406	<	}
368	>	Thread t = new Thread(new CheckedRunnable() {
369	>	public void realRun() throws InterruptedException {
370	>	q.put(new Object());
371	>	q.put(new Object());
372	>	assertFalse(q.offer(new Object(), SHORT_DELAY_MS/2, MILLISECONDS));
373	>	try {
374	>	q.offer(new Object(), LONG_DELAY_MS, MILLISECONDS);
375	>	shouldThrow();
376	>	} catch (InterruptedException success) {}
377	>	}});
378	>
379	>	t.start();
380	>	Thread.sleep(SHORT_DELAY_MS);
381	>	t.interrupt();
382	>	t.join();
383		}
384
385		/**
386		* take retrieves elements in FIFO order
387		*/
388	<	public void testTake() {
389	<	try {
390	<	ArrayBlockingQueue q = populatedQueue(SIZE);
391	<	for (int i = 0; i < SIZE; ++i) {
416	<	assertEquals(i, ((Integer)q.take()).intValue());
417	<	}
418	<	} catch (InterruptedException e){
419	<	unexpectedException();
420	<	}
421	<	}
422	<
423	<	/**
424	<	* take blocks interruptibly when empty
425	<	*/
426	<	public void testTakeFromEmpty() {
427	<	final ArrayBlockingQueue q = new ArrayBlockingQueue(2);
428	<	Thread t = new Thread(new Runnable() {
429	<	public void run() {
430	<	try {
431	<	q.take();
432	<	threadShouldThrow();
433	<	} catch (InterruptedException success){ }
434	<	}
435	<	});
436	<	try {
437	<	t.start();
438	<	Thread.sleep(SHORT_DELAY_MS);
439	<	t.interrupt();
440	<	t.join();
441	<	} catch (Exception e){
442	<	unexpectedException();
388	>	public void testTake() throws InterruptedException {
389	>	ArrayBlockingQueue q = populatedQueue(SIZE);
390	>	for (int i = 0; i < SIZE; ++i) {
391	>	assertEquals(i, q.take());
392		}
393		}
394
395		/**
396		* Take removes existing elements until empty, then blocks interruptibly
397		*/
398	<	public void testBlockingTake() {
399	<	Thread t = new Thread(new Runnable() {
400	<	public void run() {
401	<	try {
402	<	ArrayBlockingQueue q = populatedQueue(SIZE);
403	<	for (int i = 0; i < SIZE; ++i) {
404	<	threadAssertEquals(i, ((Integer)q.take()).intValue());
405	<	}
406	<	q.take();
407	<	threadShouldThrow();
408	<	} catch (InterruptedException success){
409	<	}
410	<	}});
411	<	try {
412	<	t.start();
413	<	Thread.sleep(SHORT_DELAY_MS);
414	<	t.interrupt();
466	<	t.join();
467	<	}
468	<	catch (InterruptedException ie) {
469	<	unexpectedException();
470	<	}
398	>	public void testBlockingTake() throws InterruptedException {
399	>	final ArrayBlockingQueue q = populatedQueue(SIZE);
400	>	Thread t = new Thread(new CheckedRunnable() {
401	>	public void realRun() throws InterruptedException {
402	>	for (int i = 0; i < SIZE; ++i) {
403	>	assertEquals(i, q.take());
404	>	}
405	>	try {
406	>	q.take();
407	>	shouldThrow();
408	>	} catch (InterruptedException success) {}
409	>	}});
410	>
411	>	t.start();
412	>	Thread.sleep(SHORT_DELAY_MS);
413	>	t.interrupt();
414	>	t.join();
415		}
416
417
#	Line 477 | Line 421 | public class ArrayBlockingQueueTest exte
421		public void testPoll() {
422		ArrayBlockingQueue q = populatedQueue(SIZE);
423		for (int i = 0; i < SIZE; ++i) {
424	<	assertEquals(i, ((Integer)q.poll()).intValue());
424	>	assertEquals(i, q.poll());
425		}
426	<	assertNull(q.poll());
426	>	assertNull(q.poll());
427		}
428
429		/**
430	<	* timed pool with zero timeout succeeds when non-empty, else times out
430	>	* timed poll with zero timeout succeeds when non-empty, else times out
431		*/
432	<	public void testTimedPoll0() {
433	<	try {
434	<	ArrayBlockingQueue q = populatedQueue(SIZE);
435	<	for (int i = 0; i < SIZE; ++i) {
436	<	assertEquals(i, ((Integer)q.poll(0, TimeUnit.MILLISECONDS)).intValue());
437	<	}
494	<	assertNull(q.poll(0, TimeUnit.MILLISECONDS));
495	<	} catch (InterruptedException e){
496	<	unexpectedException();
497	<	}
432	>	public void testTimedPoll0() throws InterruptedException {
433	>	ArrayBlockingQueue q = populatedQueue(SIZE);
434	>	for (int i = 0; i < SIZE; ++i) {
435	>	assertEquals(i, q.poll(0, MILLISECONDS));
436	>	}
437	>	assertNull(q.poll(0, MILLISECONDS));
438		}
439
440		/**
441	<	* timed pool with nonzero timeout succeeds when non-empty, else times out
441	>	* timed poll with nonzero timeout succeeds when non-empty, else times out
442		*/
443	<	public void testTimedPoll() {
444	<	try {
445	<	ArrayBlockingQueue q = populatedQueue(SIZE);
446	<	for (int i = 0; i < SIZE; ++i) {
447	<	assertEquals(i, ((Integer)q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS)).intValue());
448	<	}
509	<	assertNull(q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
510	<	} catch (InterruptedException e){
511	<	unexpectedException();
512	<	}
443	>	public void testTimedPoll() throws InterruptedException {
444	>	ArrayBlockingQueue q = populatedQueue(SIZE);
445	>	for (int i = 0; i < SIZE; ++i) {
446	>	assertEquals(i, q.poll(SHORT_DELAY_MS, MILLISECONDS));
447	>	}
448	>	assertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS));
449		}
450
451		/**
452		* Interrupted timed poll throws InterruptedException instead of
453		* returning timeout status
454		*/
455	<	public void testInterruptedTimedPoll() {
456	<	Thread t = new Thread(new Runnable() {
457	<	public void run() {
458	<	try {
459	<	ArrayBlockingQueue q = populatedQueue(SIZE);
460	<	for (int i = 0; i < SIZE; ++i) {
525	<	threadAssertEquals(i, ((Integer)q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS)).intValue());
526	<	}
527	<	threadAssertNull(q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
528	<	} catch (InterruptedException success){
529	<	}
530	<	}});
531	<	try {
532	<	t.start();
533	<	Thread.sleep(SHORT_DELAY_MS);
534	<	t.interrupt();
535	<	t.join();
536	<	}
537	<	catch (InterruptedException ie) {
538	<	unexpectedException();
539	<	}
540	<	}
541	<
542	<	/**
543	<	*  timed poll before a delayed offer fails; after offer succeeds;
544	<	*  on interruption throws
545	<	*/
546	<	public void testTimedPollWithOffer() {
547	<	final ArrayBlockingQueue q = new ArrayBlockingQueue(2);
548	<	Thread t = new Thread(new Runnable() {
549	<	public void run() {
550	<	try {
551	<	threadAssertNull(q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
552	<	q.poll(LONG_DELAY_MS, TimeUnit.MILLISECONDS);
553	<	q.poll(LONG_DELAY_MS, TimeUnit.MILLISECONDS);
554	<	threadShouldThrow();
555	<	} catch (InterruptedException success) { }
455	>	public void testInterruptedTimedPoll() throws InterruptedException {
456	>	Thread t = new Thread(new CheckedRunnable() {
457	>	public void realRun() throws InterruptedException {
458	>	ArrayBlockingQueue q = populatedQueue(SIZE);
459	>	for (int i = 0; i < SIZE; ++i) {
460	>	assertEquals(i, q.poll(SHORT_DELAY_MS, MILLISECONDS));;
461		}
462	<	});
463	<	try {
464	<	t.start();
465	<	Thread.sleep(SMALL_DELAY_MS);
466	<	assertTrue(q.offer(zero, SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
467	<	t.interrupt();
468	<	t.join();
469	<	} catch (Exception e){
470	<	unexpectedException();
471	<	}
472	<	}
568	<
462	>	try {
463	>	q.poll(SMALL_DELAY_MS, MILLISECONDS);
464	>	shouldThrow();
465	>	} catch (InterruptedException success) {}
466	>	}});
467	>
468	>	t.start();
469	>	Thread.sleep(SHORT_DELAY_MS);
470	>	t.interrupt();
471	>	t.join();
472	>	}
473
474		/**
475		* peek returns next element, or null if empty
#	Line 573 | Line 477 | public class ArrayBlockingQueueTest exte
477		public void testPeek() {
478		ArrayBlockingQueue q = populatedQueue(SIZE);
479		for (int i = 0; i < SIZE; ++i) {
480	<	assertEquals(i, ((Integer)q.peek()).intValue());
481	<	q.poll();
480	>	assertEquals(i, q.peek());
481	>	assertEquals(i, q.poll());
482		assertTrue(q.peek() == null ||
483	<	i != ((Integer)q.peek()).intValue());
483	>	!q.peek().equals(i));
484		}
485	<	assertNull(q.peek());
485	>	assertNull(q.peek());
486		}
487
488		/**
#	Line 587 | Line 491 | public class ArrayBlockingQueueTest exte
491		public void testElement() {
492		ArrayBlockingQueue q = populatedQueue(SIZE);
493		for (int i = 0; i < SIZE; ++i) {
494	<	assertEquals(i, ((Integer)q.element()).intValue());
495	<	q.poll();
494	>	assertEquals(i, q.element());
495	>	assertEquals(i, q.poll());
496		}
497		try {
498		q.element();
499		shouldThrow();
500	<	}
597	<	catch (NoSuchElementException success) {}
500	>	} catch (NoSuchElementException success) {}
501		}
502
503		/**
#	Line 603 | Line 506 | public class ArrayBlockingQueueTest exte
506		public void testRemove() {
507		ArrayBlockingQueue q = populatedQueue(SIZE);
508		for (int i = 0; i < SIZE; ++i) {
509	<	assertEquals(i, ((Integer)q.remove()).intValue());
509	>	assertEquals(i, q.remove());
510		}
511		try {
512		q.remove();
513		shouldThrow();
514	<	} catch (NoSuchElementException success){
612	<	}
514	>	} catch (NoSuchElementException success) {}
515		}
516
517		/**
#	Line 626 | Line 528 | public class ArrayBlockingQueueTest exte
528		}
529		assertTrue(q.isEmpty());
530		}
531	<
531	>
532		/**
533		* contains(x) reports true when elements added but not yet removed
534		*/
#	Line 634 | Line 536 | public class ArrayBlockingQueueTest exte
536		ArrayBlockingQueue q = populatedQueue(SIZE);
537		for (int i = 0; i < SIZE; ++i) {
538		assertTrue(q.contains(new Integer(i)));
539	<	q.poll();
539	>	assertEquals(i, q.poll());
540		assertFalse(q.contains(new Integer(i)));
541		}
542		}
#	Line 650 | Line 552 | public class ArrayBlockingQueueTest exte
552		assertEquals(SIZE, q.remainingCapacity());
553		q.add(one);
554		assertFalse(q.isEmpty());
555	+	assertTrue(q.contains(one));
556		q.clear();
557		assertTrue(q.isEmpty());
558		}
#	Line 704 | Line 607 | public class ArrayBlockingQueueTest exte
607		}
608
609		/**
610	<	*  toArray contains all elements
610	>	* toArray contains all elements in FIFO order
611		*/
612		public void testToArray() {
613		ArrayBlockingQueue q = populatedQueue(SIZE);
614	<	Object[] o = q.toArray();
615	<	try {
616	<	for(int i = 0; i < o.length; i++)
714	<	assertEquals(o[i], q.take());
715	<	} catch (InterruptedException e){
716	<	unexpectedException();
717	<	}
614	>	Object[] o = q.toArray();
615	>	for (int i = 0; i < o.length; i++)
616	>	assertSame(o[i], q.poll());
617		}
618
619		/**
620	<	* toArray(a) contains all elements
620	>	* toArray(a) contains all elements in FIFO order
621		*/
622		public void testToArray2() {
623	<	ArrayBlockingQueue q = populatedQueue(SIZE);
624	<	Integer[] ints = new Integer[SIZE];
625	<	ints = (Integer[])q.toArray(ints);
626	<	try {
627	<	for(int i = 0; i < ints.length; i++)
628	<	assertEquals(ints[i], q.take());
730	<	} catch (InterruptedException e){
731	<	unexpectedException();
732	<	}
623	>	ArrayBlockingQueue<Integer> q = populatedQueue(SIZE);
624	>	Integer[] ints = new Integer[SIZE];
625	>	Integer[] array = q.toArray(ints);
626	>	assertSame(ints, array);
627	>	for (int i = 0; i < ints.length; i++)
628	>	assertSame(ints[i], q.poll());
629		}
630
631		/**
632	<	* toArray(null) throws NPE
632	>	* toArray(null) throws NullPointerException
633		*/
634	<	public void testToArray_BadArg() {
635	<	try {
636	<	ArrayBlockingQueue q = populatedQueue(SIZE);
637	<	Object o[] = q.toArray(null);
638	<	shouldThrow();
639	<	} catch(NullPointerException success){}
634	>	public void testToArray_NullArg() {
635	>	ArrayBlockingQueue q = populatedQueue(SIZE);
636	>	try {
637	>	q.toArray(null);
638	>	shouldThrow();
639	>	} catch (NullPointerException success) {}
640		}
641
642		/**
643	<	* toArray with incompatible array type throws CCE
643	>	* toArray(incompatible array type) throws ArrayStoreException
644		*/
645		public void testToArray1_BadArg() {
646	<	try {
647	<	ArrayBlockingQueue q = populatedQueue(SIZE);
648	<	Object o[] = q.toArray(new String[10] );
649	<	shouldThrow();
650	<	} catch(ArrayStoreException  success){}
646	>	ArrayBlockingQueue q = populatedQueue(SIZE);
647	>	try {
648	>	q.toArray(new String[10]);
649	>	shouldThrow();
650	>	} catch (ArrayStoreException success) {}
651		}
652
653	<
653	>
654		/**
655		* iterator iterates through all elements
656		*/
657	<	public void testIterator() {
657	>	public void testIterator() throws InterruptedException {
658		ArrayBlockingQueue q = populatedQueue(SIZE);
659	<	Iterator it = q.iterator();
660	<	try {
661	<	while(it.hasNext()){
662	<	assertEquals(it.next(), q.take());
767	<	}
768	<	} catch (InterruptedException e){
769	<	unexpectedException();
770	<	}
659	>	Iterator it = q.iterator();
660	>	while (it.hasNext()) {
661	>	assertEquals(it.next(), q.take());
662	>	}
663		}
664
665		/**
666		* iterator.remove removes current element
667		*/
668	<	public void testIteratorRemove () {
668	>	public void testIteratorRemove() {
669		final ArrayBlockingQueue q = new ArrayBlockingQueue(3);
670		q.add(two);
671		q.add(one);
#	Line 782 | Line 674 | public class ArrayBlockingQueueTest exte
674		Iterator it = q.iterator();
675		it.next();
676		it.remove();
677	<
677	>
678		it = q.iterator();
679	<	assertEquals(it.next(), one);
680	<	assertEquals(it.next(), three);
679	>	assertSame(it.next(), one);
680	>	assertSame(it.next(), three);
681		assertFalse(it.hasNext());
682		}
683
#	Line 802 | Line 694 | public class ArrayBlockingQueueTest exte
694
695		int k = 0;
696		for (Iterator it = q.iterator(); it.hasNext();) {
697	<	int i = ((Integer)(it.next())).intValue();
806	<	assertEquals(++k, i);
697	>	assertEquals(++k, it.next());
698		}
699		assertEquals(3, k);
700		}
#	Line 811 | Line 702 | public class ArrayBlockingQueueTest exte
702		/**
703		* Modifications do not cause iterators to fail
704		*/
705	<	public void testWeaklyConsistentIteration () {
705	>	public void testWeaklyConsistentIteration() {
706		final ArrayBlockingQueue q = new ArrayBlockingQueue(3);
707		q.add(one);
708		q.add(two);
709		q.add(three);
710	<	try {
711	<	for (Iterator it = q.iterator(); it.hasNext();) {
712	<	q.remove();
822	<	it.next();
823	<	}
824	<	}
825	<	catch (ConcurrentModificationException e) {
826	<	unexpectedException();
710	>	for (Iterator it = q.iterator(); it.hasNext();) {
711	>	q.remove();
712	>	it.next();
713		}
714		assertEquals(0, q.size());
715		}
#	Line 838 | Line 724 | public class ArrayBlockingQueueTest exte
724		for (int i = 0; i < SIZE; ++i) {
725		assertTrue(s.indexOf(String.valueOf(i)) >= 0);
726		}
727	<	}
727	>	}
728
729
730		/**
#	Line 849 | Line 735 | public class ArrayBlockingQueueTest exte
735		q.add(one);
736		q.add(two);
737		ExecutorService executor = Executors.newFixedThreadPool(2);
738	<	executor.execute(new Runnable() {
739	<	public void run() {
740	<	threadAssertFalse(q.offer(three));
741	<	try {
742	<	threadAssertTrue(q.offer(three, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS));
743	<	threadAssertEquals(0, q.remainingCapacity());
744	<	}
745	<	catch (InterruptedException e) {
746	<	threadUnexpectedException();
747	<	}
748	<	}
749	<	});
738	>	executor.execute(new CheckedRunnable() {
739	>	public void realRun() throws InterruptedException {
740	>	assertFalse(q.offer(three));
741	>	assertTrue(q.offer(three, MEDIUM_DELAY_MS, MILLISECONDS));
742	>	assertEquals(0, q.remainingCapacity());
743	>	}});
744	>
745	>	executor.execute(new CheckedRunnable() {
746	>	public void realRun() throws InterruptedException {
747	>	Thread.sleep(SMALL_DELAY_MS);
748	>	assertSame(one, q.take());
749	>	}});
750
865	–	executor.execute(new Runnable() {
866	–	public void run() {
867	–	try {
868	–	Thread.sleep(SMALL_DELAY_MS);
869	–	threadAssertEquals(one, q.take());
870	–	}
871	–	catch (InterruptedException e) {
872	–	threadUnexpectedException();
873	–	}
874	–	}
875	–	});
876	–
751		joinPool(executor);
878	–
752		}
753
754		/**
#	Line 884 | Line 757 | public class ArrayBlockingQueueTest exte
757		public void testPollInExecutor() {
758		final ArrayBlockingQueue q = new ArrayBlockingQueue(2);
759		ExecutorService executor = Executors.newFixedThreadPool(2);
760	<	executor.execute(new Runnable() {
761	<	public void run() {
762	<	threadAssertNull(q.poll());
763	<	try {
764	<	threadAssertTrue(null != q.poll(MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS));
765	<	threadAssertTrue(q.isEmpty());
766	<	}
767	<	catch (InterruptedException e) {
768	<	threadUnexpectedException();
769	<	}
770	<	}
771	<	});
760	>	executor.execute(new CheckedRunnable() {
761	>	public void realRun() throws InterruptedException {
762	>	assertNull(q.poll());
763	>	assertSame(one, q.poll(MEDIUM_DELAY_MS, MILLISECONDS));
764	>	assertTrue(q.isEmpty());
765	>	}});
766	>
767	>	executor.execute(new CheckedRunnable() {
768	>	public void realRun() throws InterruptedException {
769	>	Thread.sleep(SMALL_DELAY_MS);
770	>	q.put(one);
771	>	}});
772
900	–	executor.execute(new Runnable() {
901	–	public void run() {
902	–	try {
903	–	Thread.sleep(SMALL_DELAY_MS);
904	–	q.put(one);
905	–	}
906	–	catch (InterruptedException e) {
907	–	threadUnexpectedException();
908	–	}
909	–	}
910	–	});
911	–
773		joinPool(executor);
774		}
775
776		/**
777		* A deserialized serialized queue has same elements in same order
778		*/
779	<	public void testSerialization() {
779	>	public void testSerialization() throws Exception {
780		ArrayBlockingQueue q = populatedQueue(SIZE);
781
782	<	try {
783	<	ByteArrayOutputStream bout = new ByteArrayOutputStream(10000);
784	<	ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout));
785	<	out.writeObject(q);
786	<	out.close();
787	<
788	<	ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray());
789	<	ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin));
790	<	ArrayBlockingQueue r = (ArrayBlockingQueue)in.readObject();
791	<	assertEquals(q.size(), r.size());
792	<	while (!q.isEmpty())
932	<	assertEquals(q.remove(), r.remove());
933	<	} catch(Exception e){
934	<	unexpectedException();
935	<	}
782	>	ByteArrayOutputStream bout = new ByteArrayOutputStream(10000);
783	>	ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout));
784	>	out.writeObject(q);
785	>	out.close();
786	>
787	>	ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray());
788	>	ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin));
789	>	ArrayBlockingQueue r = (ArrayBlockingQueue)in.readObject();
790	>	assertEquals(q.size(), r.size());
791	>	while (!q.isEmpty())
792	>	assertEquals(q.remove(), r.remove());
793		}
794
795		/**
796		* drainTo(null) throws NPE
797	<	*/
797	>	*/
798		public void testDrainToNull() {
799		ArrayBlockingQueue q = populatedQueue(SIZE);
800		try {
801		q.drainTo(null);
802		shouldThrow();
803	<	} catch(NullPointerException success) {
947	<	}
803	>	} catch (NullPointerException success) {}
804		}
805
806		/**
807		* drainTo(this) throws IAE
808	<	*/
808	>	*/
809		public void testDrainToSelf() {
810		ArrayBlockingQueue q = populatedQueue(SIZE);
811		try {
812		q.drainTo(q);
813		shouldThrow();
814	<	} catch(IllegalArgumentException success) {
959	<	}
814	>	} catch (IllegalArgumentException success) {}
815		}
816
817		/**
818		* drainTo(c) empties queue into another collection c
819	<	*/
819	>	*/
820		public void testDrainTo() {
821		ArrayBlockingQueue q = populatedQueue(SIZE);
822		ArrayList l = new ArrayList();
823		q.drainTo(l);
824		assertEquals(q.size(), 0);
825		assertEquals(l.size(), SIZE);
826	<	for (int i = 0; i < SIZE; ++i)
826	>	for (int i = 0; i < SIZE; ++i)
827	>	assertEquals(l.get(i), new Integer(i));
828	>	q.add(zero);
829	>	q.add(one);
830	>	assertFalse(q.isEmpty());
831	>	assertTrue(q.contains(zero));
832	>	assertTrue(q.contains(one));
833	>	l.clear();
834	>	q.drainTo(l);
835	>	assertEquals(q.size(), 0);
836	>	assertEquals(l.size(), 2);
837	>	for (int i = 0; i < 2; ++i)
838		assertEquals(l.get(i), new Integer(i));
839		}
840
841		/**
842		* drainTo empties full queue, unblocking a waiting put.
843	<	*/
844	<	public void testDrainToWithActivePut() {
843	>	*/
844	>	public void testDrainToWithActivePut() throws InterruptedException {
845		final ArrayBlockingQueue q = populatedQueue(SIZE);
846	<	Thread t = new Thread(new Runnable() {
847	<	public void run() {
848	<	try {
849	<	q.put(new Integer(SIZE+1));
850	<	} catch (InterruptedException ie){
851	<	threadUnexpectedException();
852	<	}
853	<	}
854	<	});
855	<	try {
856	<	t.start();
857	<	ArrayList l = new ArrayList();
858	<	q.drainTo(l);
993	<	assertTrue(l.size() >= SIZE);
994	<	for (int i = 0; i < SIZE; ++i)
995	<	assertEquals(l.get(i), new Integer(i));
996	<	t.join();
997	<	assertTrue(q.size() + l.size() >= SIZE);
998	<	} catch(Exception e){
999	<	unexpectedException();
1000	<	}
846	>	Thread t = new Thread(new CheckedRunnable() {
847	>	public void realRun() throws InterruptedException {
848	>	q.put(new Integer(SIZE+1));
849	>	}});
850	>
851	>	t.start();
852	>	ArrayList l = new ArrayList();
853	>	q.drainTo(l);
854	>	assertTrue(l.size() >= SIZE);
855	>	for (int i = 0; i < SIZE; ++i)
856	>	assertEquals(l.get(i), new Integer(i));
857	>	t.join();
858	>	assertTrue(q.size() + l.size() >= SIZE);
859		}
860
861		/**
862		* drainTo(null, n) throws NPE
863	<	*/
863	>	*/
864		public void testDrainToNullN() {
865		ArrayBlockingQueue q = populatedQueue(SIZE);
866		try {
867		q.drainTo(null, 0);
868		shouldThrow();
869	<	} catch(NullPointerException success) {
1012	<	}
869	>	} catch (NullPointerException success) {}
870		}
871
872		/**
873		* drainTo(this, n) throws IAE
874	<	*/
874	>	*/
875		public void testDrainToSelfN() {
876		ArrayBlockingQueue q = populatedQueue(SIZE);
877		try {
878		q.drainTo(q, 0);
879		shouldThrow();
880	<	} catch(IllegalArgumentException success) {
1024	<	}
880	>	} catch (IllegalArgumentException success) {}
881		}
882
883		/**
884	<	* drainTo(c, n) empties first max {n, size} elements of queue into c
885	<	*/
884	>	* drainTo(c, n) empties first min(n, size) elements of queue into c
885	>	*/
886		public void testDrainToN() {
887	+	ArrayBlockingQueue q = new ArrayBlockingQueue(SIZE*2);
888		for (int i = 0; i < SIZE + 2; ++i) {
889	<	ArrayBlockingQueue q = populatedQueue(SIZE);
889	>	for (int j = 0; j < SIZE; j++)
890	>	assertTrue(q.offer(new Integer(j)));
891		ArrayList l = new ArrayList();
892		q.drainTo(l, i);
893	<	int k = (i < SIZE)? i : SIZE;
1036	<	assertEquals(q.size(), SIZE-k);
893	>	int k = (i < SIZE) ? i : SIZE;
894		assertEquals(l.size(), k);
895	<	for (int j = 0; j < k; ++j)
895	>	assertEquals(q.size(), SIZE-k);
896	>	for (int j = 0; j < k; ++j)
897		assertEquals(l.get(j), new Integer(j));
898	+	while (q.poll() != null) ;
899		}
900		}
901
1043	–
902		}

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