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root/jsr166/jsr166/src/test/tck/LinkedTransferQueueTest.java

Comparing jsr166/src/test/tck/LinkedTransferQueueTest.java (file contents):
Revision 1.5 by jsr166, Sun Aug 2 08:17:31 2009 UTC vs.
Revision 1.18 by jsr166, Sat Nov 21 21:00:34 2009 UTC

#	Line 13 | Line 13 | import java.io.ObjectInputStream;
13		import java.io.ObjectOutputStream;
14		import java.util.ArrayList;
15		import java.util.Arrays;
16	–	import java.util.ConcurrentModificationException;
16		import java.util.Iterator;
17	+	import java.util.List;
18		import java.util.NoSuchElementException;
19		import java.util.concurrent.*;
20	+	import static java.util.concurrent.TimeUnit.MILLISECONDS;
21		import junit.framework.Test;
22		import junit.framework.TestSuite;
23
24	+	@SuppressWarnings({"unchecked", "rawtypes"})
25		public class LinkedTransferQueueTest extends JSR166TestCase {
26
27		public static void main(String[] args) {
#	Line 30 | Line 32 | public class LinkedTransferQueueTest ext
32		return new TestSuite(LinkedTransferQueueTest.class);
33		}
34
35	+	void checkEmpty(LinkedTransferQueue q) throws InterruptedException {
36	+	assertTrue(q.isEmpty());
37	+	assertEquals(0, q.size());
38	+	assertNull(q.peek());
39	+	assertNull(q.poll());
40	+	assertNull(q.poll(0, MILLISECONDS));
41	+	assertEquals(q.toString(), "[]");
42	+	assertTrue(Arrays.equals(q.toArray(), new Object[0]));
43	+	assertFalse(q.iterator().hasNext());
44	+	try {
45	+	q.element();
46	+	shouldThrow();
47	+	} catch (NoSuchElementException success) {}
48	+	try {
49	+	q.iterator().next();
50	+	shouldThrow();
51	+	} catch (NoSuchElementException success) {}
52	+	try {
53	+	q.remove();
54	+	shouldThrow();
55	+	} catch (NoSuchElementException success) {}
56	+	}
57	+
58		/**
59	<	* Constructor builds new queue with size being zero and empty being true
59	>	* Constructor builds new queue with size being zero and empty
60	>	* being true
61		*/
62		public void testConstructor1() {
63		assertEquals(0, new LinkedTransferQueue().size());
#	Line 39 | Line 65 | public class LinkedTransferQueueTest ext
65		}
66
67		/**
68	<	* Initializing constructor with null collection throws NullPointerException
68	>	* Initializing constructor with null collection throws
69	>	* NullPointerException
70		*/
71		public void testConstructor2() {
72		try {
73		new LinkedTransferQueue(null);
74		shouldThrow();
75	<	} catch (NullPointerException success) {
49	<	}
75	>	} catch (NullPointerException success) {}
76		}
77
78		/**
79	<	* Initializing from Collection of null elements throws NullPointerException
79	>	* Initializing from Collection of null elements throws
80	>	* NullPointerException
81		*/
82		public void testConstructor3() {
83		try {
84		Integer[] ints = new Integer[SIZE];
85	<	LinkedTransferQueue q = new LinkedTransferQueue(Arrays.asList(ints));
85	>	new LinkedTransferQueue(Arrays.asList(ints));
86		shouldThrow();
87	<	} catch (NullPointerException success) {
61	<	}
87	>	} catch (NullPointerException success) {}
88		}
89
90		/**
#	Line 71 | Line 97 | public class LinkedTransferQueueTest ext
97		for (int i = 0; i < SIZE - 1; ++i) {
98		ints[i] = i;
99		}
100	<	LinkedTransferQueue q = new LinkedTransferQueue(Arrays.asList(ints));
100	>	new LinkedTransferQueue(Arrays.asList(ints));
101		shouldThrow();
102	<	} catch (NullPointerException success) {
77	<	}
102	>	} catch (NullPointerException success) {}
103		}
104
105		/**
106		* Queue contains all elements of the collection it is initialized by
107		*/
108		public void testConstructor5() {
109	<	try {
110	<	Integer[] ints = new Integer[SIZE];
111	<	for (int i = 0; i < SIZE; ++i) {
112	<	ints[i] = i;
113	<	}
114	<	LinkedTransferQueue q = new LinkedTransferQueue(Arrays.asList(ints));
115	<	for (int i = 0; i < SIZE; ++i) {
116	<	assertEquals(ints[i], q.poll());
117	<	}
118	<	} finally {
109	>	Integer[] ints = new Integer[SIZE];
110	>	for (int i = 0; i < SIZE; ++i) {
111	>	ints[i] = i;
112	>	}
113	>	List intList = Arrays.asList(ints);
114	>	LinkedTransferQueue q
115	>	= new LinkedTransferQueue(intList);
116	>	assertEquals(q.size(), intList.size());
117	>	assertEquals(q.toString(), intList.toString());
118	>	assertTrue(Arrays.equals(q.toArray(),
119	>	intList.toArray()));
120	>	assertTrue(Arrays.equals(q.toArray(new Object[0]),
121	>	intList.toArray(new Object[0])));
122	>	assertTrue(Arrays.equals(q.toArray(new Object[SIZE]),
123	>	intList.toArray(new Object[SIZE])));
124	>	for (int i = 0; i < SIZE; ++i) {
125	>	assertEquals(ints[i], q.poll());
126		}
127		}
128
129		/**
130	<	* Remaining capacity never decrease nor increase on add or remove
130	>	* remainingCapacity() always returns Integer.MAX_VALUE
131		*/
132		public void testRemainingCapacity() {
133		LinkedTransferQueue<Integer> q = populatedQueue(SIZE);
#	Line 119 | Line 151 | public class LinkedTransferQueueTest ext
151		LinkedTransferQueue q = new LinkedTransferQueue();
152		q.offer(null);
153		shouldThrow();
154	<	} catch (NullPointerException success) {
123	<	}
154	>	} catch (NullPointerException success) {}
155		}
156
157		/**
#	Line 131 | Line 162 | public class LinkedTransferQueueTest ext
162		LinkedTransferQueue q = new LinkedTransferQueue();
163		q.add(null);
164		shouldThrow();
165	<	} catch (NullPointerException success) {
135	<	}
165	>	} catch (NullPointerException success) {}
166		}
167
168		/**
#	Line 143 | Line 173 | public class LinkedTransferQueueTest ext
173		LinkedTransferQueue q = new LinkedTransferQueue();
174		q.addAll(null);
175		shouldThrow();
176	<	} catch (NullPointerException success) {
147	<	}
176	>	} catch (NullPointerException success) {}
177		}
178
179		/**
#	Line 155 | Line 184 | public class LinkedTransferQueueTest ext
184		LinkedTransferQueue q = populatedQueue(SIZE);
185		q.addAll(q);
186		shouldThrow();
187	<	} catch (IllegalArgumentException success) {
159	<	}
187	>	} catch (IllegalArgumentException success) {}
188		}
189
190		/**
#	Line 168 | Line 196 | public class LinkedTransferQueueTest ext
196		Integer[] ints = new Integer[SIZE];
197		q.addAll(Arrays.asList(ints));
198		shouldThrow();
199	<	} catch (NullPointerException success) {
172	<	}
199	>	} catch (NullPointerException success) {}
200		}
201
202		/**
203	<	* addAll of a collection with any null elements throws NullPointerException after
204	<	* possibly adding some elements
203	>	* addAll of a collection with any null elements throws
204	>	* NullPointerException after possibly adding some elements
205		*/
206		public void testAddAll3() {
207		try {
#	Line 185 | Line 212 | public class LinkedTransferQueueTest ext
212		}
213		q.addAll(Arrays.asList(ints));
214		shouldThrow();
215	<	} catch (NullPointerException success) {
189	<	}
215	>	} catch (NullPointerException success) {}
216		}
217
218		/**
#	Line 223 | Line 249 | public class LinkedTransferQueueTest ext
249		public void testPut() {
250		LinkedTransferQueue<Integer> q = new LinkedTransferQueue<Integer>();
251		for (int i = 0; i < SIZE; ++i) {
252	+	assertEquals(q.size(), i);
253		q.put(i);
254		assertTrue(q.contains(i));
255		}
229	–	assertEquals(q.size(), SIZE);
256		}
257
258		/**
#	Line 244 | Line 270 | public class LinkedTransferQueueTest ext
270		*/
271		public void testTakeFromEmpty() throws InterruptedException {
272		final LinkedTransferQueue q = new LinkedTransferQueue();
273	<	Thread t = new Thread(new Runnable() {
274	<	public void run() {
275	<	try {
250	<	q.take();
251	<	threadShouldThrow();
252	<	} catch (InterruptedException success) {
253	<	} catch (Throwable ex) {
254	<	threadUnexpectedException(ex);
255	<	}
273	>	Thread t = newStartedThread(new CheckedInterruptedRunnable() {
274	>	void realRun() throws InterruptedException {
275	>	q.take();
276		}});
257	–	t.start();
277		Thread.sleep(SHORT_DELAY_MS);
278		t.interrupt();
279		t.join();
#	Line 264 | Line 283 | public class LinkedTransferQueueTest ext
283		* Take removes existing elements until empty, then blocks interruptibly
284		*/
285		public void testBlockingTake() throws InterruptedException {
286	<	Thread t = new Thread(new Runnable() {
287	<	public void run() {
288	<	try {
289	<	LinkedTransferQueue<Integer> q = populatedQueue(SIZE);
290	<	for (int i = 0; i < SIZE; ++i) {
272	<	threadAssertEquals(i, (int) q.take());
273	<	}
274	<	q.take();
275	<	threadShouldThrow();
276	<	} catch (InterruptedException success) {
277	<	} catch (Throwable ex) {
278	<	threadUnexpectedException(ex);
286	>	final LinkedTransferQueue<Integer> q = populatedQueue(SIZE);
287	>	Thread t = newStartedThread(new CheckedInterruptedRunnable() {
288	>	void realRun() throws InterruptedException {
289	>	for (int i = 0; i < SIZE; ++i) {
290	>	threadAssertEquals(i, (int) q.take());
291		}
292	+	q.take();
293		}});
294	<	t.start();
282	<	Thread.sleep(SHORT_DELAY_MS);
294	>	Thread.sleep(SMALL_DELAY_MS);
295		t.interrupt();
296		t.join();
297	+	checkEmpty(q);
298		}
299
300		/**
301		* poll succeeds unless empty
302		*/
303	<	public void testPoll() {
303	>	public void testPoll() throws InterruptedException {
304		LinkedTransferQueue<Integer> q = populatedQueue(SIZE);
305		for (int i = 0; i < SIZE; ++i) {
306		assertEquals(i, (int) q.poll());
307		}
308		assertNull(q.poll());
309	+	checkEmpty(q);
310		}
311
312		/**
#	Line 301 | Line 315 | public class LinkedTransferQueueTest ext
315		public void testTimedPoll0() throws InterruptedException {
316		LinkedTransferQueue<Integer> q = populatedQueue(SIZE);
317		for (int i = 0; i < SIZE; ++i) {
318	<	assertEquals(i, (int) q.poll(0, TimeUnit.MILLISECONDS));
318	>	assertEquals(i, (int) q.poll(0, MILLISECONDS));
319		}
320	<	assertNull(q.poll(0, TimeUnit.MILLISECONDS));
320	>	assertNull(q.poll(0, MILLISECONDS));
321	>	checkEmpty(q);
322		}
323
324		/**
#	Line 312 | Line 327 | public class LinkedTransferQueueTest ext
327		public void testTimedPoll() throws InterruptedException {
328		LinkedTransferQueue<Integer> q = populatedQueue(SIZE);
329		for (int i = 0; i < SIZE; ++i) {
330	<	assertEquals(i, (int) q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
330	>	long t0 = System.nanoTime();
331	>	assertEquals(i, (int) q.poll(LONG_DELAY_MS, MILLISECONDS));
332	>	long millisElapsed = (System.nanoTime() - t0)/(1024 * 1024);
333	>	assertTrue(millisElapsed < SMALL_DELAY_MS);
334		}
335	<	assertNull(q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
335	>	assertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS));
336	>	checkEmpty(q);
337		}
338
339		/**
#	Line 322 | Line 341 | public class LinkedTransferQueueTest ext
341		* returning timeout status
342		*/
343		public void testInterruptedTimedPoll() throws InterruptedException {
344	<	Thread t = new Thread(new Runnable() {
345	<	public void run() {
346	<	try {
347	<	LinkedTransferQueue<Integer> q = populatedQueue(SIZE);
348	<	for (int i = 0; i < SIZE; ++i) {
349	<	threadAssertEquals(i, (int) q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
350	<	}
351	<	threadAssertNull(q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
352	<	} catch (InterruptedException success) {
334	<	} catch (Throwable ex) {
335	<	threadUnexpectedException(ex);
344	>	final LinkedTransferQueue<Integer> q = populatedQueue(SIZE);
345	>	Thread t = newStartedThread(new CheckedRunnable() {
346	>	void realRun() throws InterruptedException {
347	>	for (int i = 0; i < SIZE; ++i) {
348	>	long t0 = System.nanoTime();
349	>	threadAssertEquals(i, (int) q.poll(LONG_DELAY_MS,
350	>	MILLISECONDS));
351	>	long millisElapsed = (System.nanoTime() - t0)/(1024 * 1024);
352	>	assertTrue(millisElapsed < SMALL_DELAY_MS);
353		}
354	+	try {
355	+	q.poll(LONG_DELAY_MS, MILLISECONDS);
356	+	shouldThrow();
357	+	} catch (InterruptedException success) {}
358		}});
359	<	t.start();
360	<	Thread.sleep(SHORT_DELAY_MS);
359	>
360	>	Thread.sleep(SMALL_DELAY_MS);
361		t.interrupt();
362		t.join();
363	+	checkEmpty(q);
364		}
365
366		/**
#	Line 347 | Line 369 | public class LinkedTransferQueueTest ext
369		*/
370		public void testTimedPollWithOffer() throws InterruptedException {
371		final LinkedTransferQueue q = new LinkedTransferQueue();
372	<	Thread t = new Thread(new Runnable() {
373	<	public void run() {
372	>	Thread t = new Thread(new CheckedRunnable() {
373	>	void realRun() throws InterruptedException {
374	>	assertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS));
375	>	assertSame(zero, q.poll(LONG_DELAY_MS, MILLISECONDS));
376		try {
377	<	threadAssertNull(q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
378	<	q.poll(LONG_DELAY_MS, TimeUnit.MILLISECONDS);
379	<	q.poll(LONG_DELAY_MS, TimeUnit.MILLISECONDS);
356	<	threadShouldThrow();
357	<	} catch (InterruptedException success) {
358	<	} catch (Throwable ex) {
359	<	threadUnexpectedException(ex);
360	<	}
377	>	q.poll(LONG_DELAY_MS, MILLISECONDS);
378	>	shouldThrow();
379	>	} catch (InterruptedException success) {}
380		}});
381	<	t.start();
381	>
382		Thread.sleep(SMALL_DELAY_MS);
383	<	assertTrue(q.offer(zero, SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
383	>	assertTrue(q.offer(zero, SHORT_DELAY_MS, MILLISECONDS));
384		t.interrupt();
385		t.join();
386		}
#	Line 369 | Line 388 | public class LinkedTransferQueueTest ext
388		/**
389		* peek returns next element, or null if empty
390		*/
391	<	public void testPeek() {
391	>	public void testPeek() throws InterruptedException {
392		LinkedTransferQueue<Integer> q = populatedQueue(SIZE);
393		for (int i = 0; i < SIZE; ++i) {
394		assertEquals(i, (int) q.peek());
#	Line 378 | Line 397 | public class LinkedTransferQueueTest ext
397		i != (int) q.peek());
398		}
399		assertNull(q.peek());
400	+	checkEmpty(q);
401		}
402
403		/**
404		* element returns next element, or throws NoSuchElementException if empty
405		*/
406	<	public void testElement() {
406	>	public void testElement() throws InterruptedException {
407		LinkedTransferQueue<Integer> q = populatedQueue(SIZE);
408		for (int i = 0; i < SIZE; ++i) {
409		assertEquals(i, (int) q.element());
#	Line 392 | Line 412 | public class LinkedTransferQueueTest ext
412		try {
413		q.element();
414		shouldThrow();
415	<	} catch (NoSuchElementException success) {
416	<	}
415	>	} catch (NoSuchElementException success) {}
416	>	checkEmpty(q);
417		}
418
419		/**
420		* remove removes next element, or throws NoSuchElementException if empty
421		*/
422	<	public void testRemove() {
422	>	public void testRemove() throws InterruptedException {
423		LinkedTransferQueue<Integer> q = populatedQueue(SIZE);
424		for (int i = 0; i < SIZE; ++i) {
425		assertEquals(i, (int) q.remove());
#	Line 407 | Line 427 | public class LinkedTransferQueueTest ext
427		try {
428		q.remove();
429		shouldThrow();
430	<	} catch (NoSuchElementException success) {
431	<	}
430	>	} catch (NoSuchElementException success) {}
431	>	checkEmpty(q);
432		}
433
434		/**
435		* remove(x) removes x and returns true if present
436		*/
437	<	public void testRemoveElement() {
437	>	public void testRemoveElement() throws InterruptedException {
438		LinkedTransferQueue q = populatedQueue(SIZE);
439		for (int i = 1; i < SIZE; i += 2) {
440		assertTrue(q.remove(i));
#	Line 423 | Line 443 | public class LinkedTransferQueueTest ext
443		assertTrue(q.remove(i));
444		assertFalse(q.remove(i + 1));
445		}
446	<	assertTrue(q.isEmpty());
446	>	checkEmpty(q);
447		}
448
449		/**
#	Line 436 | Line 456 | public class LinkedTransferQueueTest ext
456		assertTrue(q.remove(one));
457		assertTrue(q.remove(two));
458		assertTrue(q.add(three));
459	<	assertTrue(q.take() != null);
459	>	assertTrue(q.take() == three);
460		}
461
462		/**
#	Line 454 | Line 474 | public class LinkedTransferQueueTest ext
474		/**
475		* clear removes all elements
476		*/
477	<	public void testClear() {
477	>	public void testClear() throws InterruptedException {
478		LinkedTransferQueue q = populatedQueue(SIZE);
479		q.clear();
480	<	assertTrue(q.isEmpty());
461	<	assertEquals(0, q.size());
480	>	checkEmpty(q);
481		assertEquals(Integer.MAX_VALUE, q.remainingCapacity());
482		q.add(one);
483		assertFalse(q.isEmpty());
484	+	assertEquals(1, q.size());
485		assertTrue(q.contains(one));
486		q.clear();
487	<	assertTrue(q.isEmpty());
487	>	checkEmpty(q);
488		}
489
490		/**
#	Line 482 | Line 502 | public class LinkedTransferQueueTest ext
502		}
503
504		/**
505	<	* retainAll(c) retains only those elements of c and reports true if changed
505	>	* retainAll(c) retains only those elements of c and reports true
506	>	* if changed
507		*/
508		public void testRetainAll() {
509		LinkedTransferQueue q = populatedQueue(SIZE);
#	Line 501 | Line 522 | public class LinkedTransferQueueTest ext
522		}
523
524		/**
525	<	* removeAll(c) removes only those elements of c and reports true if changed
525	>	* removeAll(c) removes only those elements of c and reports true
526	>	* if changed
527		*/
528		public void testRemoveAll() {
529		for (int i = 1; i < SIZE; ++i) {
#	Line 516 | Line 538 | public class LinkedTransferQueueTest ext
538		}
539
540		/**
541	<	* toArray contains all elements
541	>	* toArray() contains all elements
542		*/
543		public void testToArray() throws InterruptedException {
544		LinkedTransferQueue q = populatedQueue(SIZE);
#	Line 546 | Line 568 | public class LinkedTransferQueueTest ext
568		LinkedTransferQueue q = populatedQueue(SIZE);
569		Object o[] = q.toArray(null);
570		shouldThrow();
571	<	} catch (NullPointerException success) {
550	<	}
571	>	} catch (NullPointerException success) {}
572		}
573
574		/**
575	<	* toArray with incompatible array type throws CCE
575	>	* toArray(incompatible array type) throws CCE
576		*/
577		public void testToArray1_BadArg() {
578		try {
579		LinkedTransferQueue q = populatedQueue(SIZE);
580		Object o[] = q.toArray(new String[10]);
581		shouldThrow();
582	<	} catch (ArrayStoreException success) {
562	<	}
582	>	} catch (ArrayStoreException success) {}
583		}
584
585		/**
#	Line 568 | Line 588 | public class LinkedTransferQueueTest ext
588		public void testIterator() throws InterruptedException {
589		LinkedTransferQueue q = populatedQueue(SIZE);
590		Iterator it = q.iterator();
591	+	int i = 0;
592		while (it.hasNext()) {
593	<	assertEquals(it.next(), q.take());
593	>	assertEquals(it.next(), i++);
594		}
595	+	assertEquals(i, SIZE);
596		}
597
598		/**
599	<	* iterator.remove removes current element
599	>	* iterator.remove() removes current element
600		*/
601		public void testIteratorRemove() {
602		final LinkedTransferQueue q = new LinkedTransferQueue();
#	Line 596 | Line 618 | public class LinkedTransferQueueTest ext
618		* iterator ordering is FIFO
619		*/
620		public void testIteratorOrdering() {
621	<	final LinkedTransferQueue<Integer> q = new LinkedTransferQueue<Integer>();
621	>	final LinkedTransferQueue<Integer> q
622	>	= new LinkedTransferQueue<Integer>();
623		assertEquals(Integer.MAX_VALUE, q.remainingCapacity());
624		q.add(one);
625		q.add(two);
#	Line 643 | Line 666 | public class LinkedTransferQueueTest ext
666		q.add(one);
667		q.add(two);
668		ExecutorService executor = Executors.newFixedThreadPool(2);
669	<	executor.execute(new Runnable() {
670	<	public void run() {
671	<	try {
672	<	threadAssertTrue(q.offer(three, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS));
673	<	} catch (Throwable ex) {
651	<	threadUnexpectedException(ex);
652	<	}
669	>
670	>	executor.execute(new CheckedRunnable() {
671	>	void realRun() {
672	>	threadAssertTrue(q.offer(three, MEDIUM_DELAY_MS,
673	>	MILLISECONDS));
674		}});
675
676	<	executor.execute(new Runnable() {
677	<	public void run() {
678	<	try {
679	<	Thread.sleep(SMALL_DELAY_MS);
659	<	threadAssertEquals(one, q.take());
660	<	} catch (Throwable ex) {
661	<	threadUnexpectedException(ex);
662	<	}
676	>	executor.execute(new CheckedRunnable() {
677	>	void realRun() throws InterruptedException {
678	>	Thread.sleep(SMALL_DELAY_MS);
679	>	threadAssertEquals(one, q.take());
680		}});
681
682		joinPool(executor);
683		}
684
685		/**
686	<	* poll retrieves elements across Executor threads
686	>	* timed poll retrieves elements across Executor threads
687		*/
688		public void testPollInExecutor() {
689		final LinkedTransferQueue q = new LinkedTransferQueue();
690		ExecutorService executor = Executors.newFixedThreadPool(2);
691	<	executor.execute(new Runnable() {
692	<	public void run() {
693	<	try {
694	<	threadAssertNull(q.poll());
695	<	threadAssertTrue(null != q.poll(MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS));
696	<	threadAssertTrue(q.isEmpty());
697	<	} catch (Throwable  ex) {
681	<	threadUnexpectedException(ex);
682	<	}
691	>
692	>	executor.execute(new CheckedRunnable() {
693	>	void realRun() throws InterruptedException {
694	>	threadAssertNull(q.poll());
695	>	threadAssertTrue(null != q.poll(MEDIUM_DELAY_MS,
696	>	MILLISECONDS));
697	>	threadAssertTrue(q.isEmpty());
698		}});
699
700	<	executor.execute(new Runnable() {
701	<	public void run() {
702	<	try {
703	<	Thread.sleep(SMALL_DELAY_MS);
689	<	q.put(one);
690	<	} catch (Throwable ex) {
691	<	threadUnexpectedException(ex);
692	<	}
700	>	executor.execute(new CheckedRunnable() {
701	>	void realRun() throws InterruptedException {
702	>	Thread.sleep(SMALL_DELAY_MS);
703	>	q.put(one);
704		}});
705
706		joinPool(executor);
#	Line 702 | Line 713 | public class LinkedTransferQueueTest ext
713		LinkedTransferQueue q = populatedQueue(SIZE);
714
715		ByteArrayOutputStream bout = new ByteArrayOutputStream(10000);
716	<	ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout));
716	>	ObjectOutputStream out
717	>	= new ObjectOutputStream(new BufferedOutputStream(bout));
718		out.writeObject(q);
719		out.close();
720
721	<	ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray());
722	<	ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin));
721	>	ByteArrayInputStream bin
722	>	= new ByteArrayInputStream(bout.toByteArray());
723	>	ObjectInputStream in
724	>	= new ObjectInputStream(new BufferedInputStream(bin));
725		LinkedTransferQueue r = (LinkedTransferQueue) in.readObject();
726
727		assertEquals(q.size(), r.size());
#	Line 724 | Line 738 | public class LinkedTransferQueueTest ext
738		try {
739		q.drainTo(null);
740		shouldThrow();
741	<	} catch (NullPointerException success) {
728	<	}
741	>	} catch (NullPointerException success) {}
742		}
743
744		/**
#	Line 736 | Line 749 | public class LinkedTransferQueueTest ext
749		try {
750		q.drainTo(q);
751		shouldThrow();
752	<	} catch (IllegalArgumentException success) {
740	<	}
752	>	} catch (IllegalArgumentException success) {}
753		}
754
755		/**
#	Line 767 | Line 779 | public class LinkedTransferQueueTest ext
779		}
780
781		/**
782	<	* drainTo empties full queue, unblocking a waiting put.
782	>	* drainTo(c) empties full queue, unblocking a waiting put.
783		*/
784		public void testDrainToWithActivePut() throws InterruptedException {
785		final LinkedTransferQueue q = populatedQueue(SIZE);
786	<	Thread t = new Thread(new Runnable() {
787	<	public void run() {
788	<	try {
777	<	q.put(SIZE + 1);
778	<	} catch (Throwable ex) {
779	<	threadUnexpectedException(ex);
780	<	}
786	>	Thread t = newStartedThread(new CheckedRunnable() {
787	>	void realRun() {
788	>	q.put(SIZE + 1);
789		}});
782	–	t.start();
790		ArrayList l = new ArrayList();
791		q.drainTo(l);
792		assertTrue(l.size() >= SIZE);
#	Line 796 | Line 803 | public class LinkedTransferQueueTest ext
803		public void testDrainToNullN() {
804		LinkedTransferQueue q = populatedQueue(SIZE);
805		try {
806	<	q.drainTo(null, 0);
806	>	q.drainTo(null, SIZE);
807		shouldThrow();
808	<	} catch (NullPointerException success) {
802	<	}
808	>	} catch (NullPointerException success) {}
809		}
810
811		/**
#	Line 808 | Line 814 | public class LinkedTransferQueueTest ext
814		public void testDrainToSelfN() {
815		LinkedTransferQueue q = populatedQueue(SIZE);
816		try {
817	<	q.drainTo(q, 0);
817	>	q.drainTo(q, SIZE);
818		shouldThrow();
819	<	} catch (IllegalArgumentException success) {
814	<	}
819	>	} catch (IllegalArgumentException success) {}
820		}
821
822		/**
#	Line 837 | Line 842 | public class LinkedTransferQueueTest ext
842		}
843
844		/**
845	<	* poll and take should decrement the waiting consumer count
845	>	* timed poll() or take() increments the waiting consumer count;
846	>	* offer(e) decrements the waiting consumer count
847		*/
848		public void testWaitingConsumer() throws InterruptedException {
849		final LinkedTransferQueue q = new LinkedTransferQueue();
850	<	final ConsumerObserver waiting = new ConsumerObserver();
851	<	new Thread(new Runnable() {
852	<	public void run() {
853	<	try {
854	<	threadAssertTrue(q.hasWaitingConsumer());
855	<	waiting.setWaitingConsumer(q.getWaitingConsumerCount());
856	<	threadAssertTrue(q.offer(new Object()));
857	<	} catch (Throwable ex) {
858	<	threadUnexpectedException(ex);
859	<	}
860	<	}}).start();
861	<	assertTrue(q.poll(LONG_DELAY_MS, TimeUnit.MILLISECONDS) != null);
862	<	assertTrue(q.getWaitingConsumerCount() < waiting.getWaitingConsumers());
850	>	assertEquals(q.getWaitingConsumerCount(), 0);
851	>	assertFalse(q.hasWaitingConsumer());
852	>
853	>	Thread t = newStartedThread(new CheckedRunnable() {
854	>	void realRun() throws InterruptedException {
855	>	Thread.sleep(SMALL_DELAY_MS);
856	>	threadAssertTrue(q.hasWaitingConsumer());
857	>	threadAssertEquals(q.getWaitingConsumerCount(), 1);
858	>	threadAssertTrue(q.offer(new Object()));
859	>	threadAssertFalse(q.hasWaitingConsumer());
860	>	threadAssertEquals(q.getWaitingConsumerCount(), 0);
861	>	}});
862	>
863	>	assertTrue(q.poll(LONG_DELAY_MS, MILLISECONDS) != null);
864	>	assertEquals(q.getWaitingConsumerCount(), 0);
865	>	assertFalse(q.hasWaitingConsumer());
866	>	t.join();
867		}
868
869		/**
#	Line 864 | Line 874 | public class LinkedTransferQueueTest ext
874		LinkedTransferQueue q = new LinkedTransferQueue();
875		q.transfer(null);
876		shouldThrow();
877	<	} catch (NullPointerException ex) {
868	<	}
877	>	} catch (NullPointerException success) {}
878		}
879
880		/**
881	<	* transfer attempts to insert into the queue then wait until that
882	<	* object is removed via take or poll.
881	>	* transfer waits until a poll occurs. The transfered element
882	>	* is returned by this associated poll.
883		*/
884		public void testTransfer2() throws InterruptedException {
885	<	final LinkedTransferQueue<Integer> q = new LinkedTransferQueue<Integer>();
885	>	final LinkedTransferQueue<Integer> q
886	>	= new LinkedTransferQueue<Integer>();
887
888	<	new Thread(new Runnable() {
889	<	public void run() {
890	<	try {
891	<	q.transfer(SIZE);
892	<	threadAssertTrue(q.isEmpty());
883	<	} catch (Throwable ex) {
884	<	threadUnexpectedException(ex);
885	<	}
886	<	}}).start();
888	>	Thread t = newStartedThread(new CheckedRunnable() {
889	>	void realRun() throws InterruptedException {
890	>	q.transfer(SIZE);
891	>	threadAssertTrue(q.isEmpty());
892	>	}});
893
894		Thread.sleep(SHORT_DELAY_MS);
895		assertEquals(1, q.size());
896		assertEquals(SIZE, (int) q.poll());
897		assertTrue(q.isEmpty());
898	+	t.join();
899		}
900
901		/**
902	<	* transfer will attempt to transfer in fifo order and continue
896	<	* waiting if the element being transfered is not polled or taken
902	>	* transfer waits until a poll occurs, and then transfers in fifo order
903		*/
904		public void testTransfer3() throws InterruptedException {
905	<	final LinkedTransferQueue<Integer> q = new LinkedTransferQueue<Integer>();
905	>	final LinkedTransferQueue<Integer> q
906	>	= new LinkedTransferQueue<Integer>();
907
908	<	Thread first =
909	<	new Thread(new Runnable() {
910	<	public void run() {
911	<	try {
912	<	Integer i = SIZE + 1;
913	<	q.transfer(i);
914	<	threadAssertTrue(!q.contains(i));
908	<	threadAssertEquals(1, q.size());
909	<	} catch (Throwable ex) {
910	<	threadUnexpectedException(ex);
911	<	}
912	<	}});
913	<	first.start();
908	>	Thread first = newStartedThread(new CheckedRunnable() {
909	>	void realRun() throws InterruptedException {
910	>	Integer i = SIZE + 1;
911	>	q.transfer(i);
912	>	threadAssertTrue(!q.contains(i));
913	>	threadAssertEquals(1, q.size());
914	>	}});
915
916	<	Thread interruptedThread =
917	<	new Thread(new Runnable() {
918	<	public void run() {
919	<	try {
920	<	while (q.size() == 0)
921	<	Thread.yield();
921	<	q.transfer(SIZE);
922	<	threadShouldThrow();
923	<	} catch (InterruptedException success) {
924	<	} catch (Throwable ex) {
925	<	threadUnexpectedException(ex);
926	<	}
916	>	Thread interruptedThread = newStartedThread(
917	>	new CheckedInterruptedRunnable() {
918	>	void realRun() throws InterruptedException {
919	>	while (q.size() == 0)
920	>	Thread.yield();
921	>	q.transfer(SIZE);
922		}});
928	–	interruptedThread.start();
923
924		while (q.size() < 2)
925		Thread.yield();
#	Line 940 | Line 934 | public class LinkedTransferQueueTest ext
934		}
935
936		/**
937	<	* transfer will wait as long as a poll or take occurs if one does occur
938	<	* the waiting is finished and the thread that tries to poll/take
945	<	* wins in retrieving the element
937	>	* transfer waits until a poll occurs, at which point the polling
938	>	* thread returns the element
939		*/
940		public void testTransfer4() throws InterruptedException {
941		final LinkedTransferQueue q = new LinkedTransferQueue();
942	<	new Thread(new Runnable() {
943	<	public void run() {
944	<	try {
945	<	q.transfer(four);
946	<	threadAssertFalse(q.contains(four));
947	<	threadAssertEquals(three, q.poll());
948	<	} catch (Throwable ex) {
949	<	threadUnexpectedException(ex);
950	<	}
958	<	}}).start();
959	<	Thread.sleep(MEDIUM_DELAY_MS);
942	>
943	>	Thread t = newStartedThread(new CheckedRunnable() {
944	>	void realRun() throws InterruptedException {
945	>	q.transfer(four);
946	>	threadAssertFalse(q.contains(four));
947	>	threadAssertEquals(three, q.poll());
948	>	}});
949	>
950	>	Thread.sleep(SHORT_DELAY_MS);
951		assertTrue(q.offer(three));
952		assertEquals(four, q.poll());
953	+	t.join();
954	+	}
955	+
956	+	/**
957	+	* transfer waits until a take occurs. The transfered element
958	+	* is returned by this associated take.
959	+	*/
960	+	public void testTransfer5() throws InterruptedException {
961	+	final LinkedTransferQueue<Integer> q
962	+	= new LinkedTransferQueue<Integer>();
963	+
964	+	Thread t = newStartedThread(new CheckedRunnable() {
965	+	void realRun() throws InterruptedException {
966	+	q.transfer(SIZE);
967	+	checkEmpty(q);
968	+	}});
969	+
970	+	Thread.sleep(SHORT_DELAY_MS);
971	+	assertEquals(SIZE, (int) q.take());
972	+	checkEmpty(q);
973	+	t.join();
974		}
975
976		/**
#	Line 968 | Line 980 | public class LinkedTransferQueueTest ext
980		try {
981		final LinkedTransferQueue q = new LinkedTransferQueue();
982		q.tryTransfer(null);
983	<	this.shouldThrow();
984	<	} catch (NullPointerException ex) {
973	<	}
983	>	shouldThrow();
984	>	} catch (NullPointerException success) {}
985		}
986
987		/**
988		* tryTransfer returns false and does not enqueue if there are no
989		* consumers waiting to poll or take.
990		*/
991	<	public void testTryTransfer2() {
991	>	public void testTryTransfer2() throws InterruptedException {
992		final LinkedTransferQueue q = new LinkedTransferQueue();
993		assertFalse(q.tryTransfer(new Object()));
994		assertFalse(q.hasWaitingConsumer());
995	<	assertTrue(q.isEmpty());
985	<	assertEquals(0, q.size());
995	>	checkEmpty(q);
996		}
997
998		/**
#	Line 992 | Line 1002 | public class LinkedTransferQueueTest ext
1002		public void testTryTransfer3() throws InterruptedException {
1003		final Object hotPotato = new Object();
1004		final LinkedTransferQueue q = new LinkedTransferQueue();
1005	<	new Thread(new Runnable() {
1006	<	public void run() {
1007	<	try {
1008	<	while (! q.hasWaitingConsumer())
1009	<	Thread.yield();
1010	<	threadAssertTrue(q.hasWaitingConsumer());
1011	<	threadAssertTrue(q.isEmpty());
1012	<	threadAssertTrue(q.size() == 0);
1013	<	threadAssertTrue(q.tryTransfer(hotPotato));
1014	<	} catch (Throwable ex) {
1015	<	threadUnexpectedException(ex);
1016	<	}
1017	<	}}).start();
1018	<	assertTrue(q.poll(LONG_DELAY_MS, TimeUnit.MILLISECONDS) == hotPotato);
1009	<	assertTrue(q.isEmpty());
1005	>
1006	>	Thread t = newStartedThread(new CheckedRunnable() {
1007	>	void realRun() {
1008	>	while (! q.hasWaitingConsumer())
1009	>	Thread.yield();
1010	>	threadAssertTrue(q.hasWaitingConsumer());
1011	>	threadAssertTrue(q.isEmpty());
1012	>	threadAssertTrue(q.size() == 0);
1013	>	threadAssertTrue(q.tryTransfer(hotPotato));
1014	>	}});
1015	>
1016	>	assertTrue(q.poll(MEDIUM_DELAY_MS, MILLISECONDS) == hotPotato);
1017	>	checkEmpty(q);
1018	>	t.join();
1019		}
1020
1021		/**
#	Line 1016 | Line 1025 | public class LinkedTransferQueueTest ext
1025		public void testTryTransfer4() throws InterruptedException {
1026		final Object hotPotato = new Object();
1027		final LinkedTransferQueue q = new LinkedTransferQueue();
1028	<	new Thread(new Runnable() {
1029	<	public void run() {
1030	<	try {
1031	<	while (! q.hasWaitingConsumer())
1032	<	Thread.yield();
1033	<	threadAssertTrue(q.hasWaitingConsumer());
1034	<	threadAssertTrue(q.isEmpty());
1035	<	threadAssertTrue(q.size() == 0);
1036	<	threadAssertTrue(q.tryTransfer(hotPotato));
1037	<	} catch (Throwable ex) {
1038	<	threadUnexpectedException(ex);
1030	<	}
1031	<	}}).start();
1028	>
1029	>	Thread t = newStartedThread(new CheckedRunnable() {
1030	>	void realRun() {
1031	>	while (! q.hasWaitingConsumer())
1032	>	Thread.yield();
1033	>	threadAssertTrue(q.hasWaitingConsumer());
1034	>	threadAssertTrue(q.isEmpty());
1035	>	threadAssertTrue(q.size() == 0);
1036	>	threadAssertTrue(q.tryTransfer(hotPotato));
1037	>	}});
1038	>
1039		assertTrue(q.take() == hotPotato);
1040	<	assertTrue(q.isEmpty());
1040	>	checkEmpty(q);
1041	>	t.join();
1042		}
1043
1044		/**
1045	<	* tryTransfer waits the amount given if interrupted, show an
1046	<	* interrupted exception
1045	>	* tryTransfer waits the amount given if interrupted, and
1046	>	* throws interrupted exception
1047		*/
1048		public void testTryTransfer5() throws InterruptedException {
1049		final LinkedTransferQueue q = new LinkedTransferQueue();
1050	<	Thread toInterrupt = new Thread(new Runnable() {
1051	<	public void run() {
1052	<	try {
1053	<	q.tryTransfer(new Object(), LONG_DELAY_MS, TimeUnit.MILLISECONDS);
1046	<	threadShouldThrow();
1047	<	} catch (InterruptedException success) {
1048	<	} catch (Throwable ex) {
1049	<	threadUnexpectedException(ex);
1050	<	}
1050	>
1051	>	Thread toInterrupt = newStartedThread(new CheckedInterruptedRunnable() {
1052	>	void realRun() throws InterruptedException {
1053	>	q.tryTransfer(new Object(), LONG_DELAY_MS, MILLISECONDS);
1054		}});
1055	<	toInterrupt.start();
1055	>
1056		Thread.sleep(SMALL_DELAY_MS);
1057		toInterrupt.interrupt();
1058	+	toInterrupt.join();
1059		}
1060
1061		/**
#	Line 1059 | Line 1063 | public class LinkedTransferQueueTest ext
1063		*/
1064		public void testTryTransfer6() throws InterruptedException {
1065		final LinkedTransferQueue q = new LinkedTransferQueue();
1066	<	new Thread(new Runnable() {
1067	<	public void run() {
1068	<	try {
1069	<	threadAssertFalse(q.tryTransfer(new Object(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
1070	<	} catch (Throwable ex) {
1071	<	threadUnexpectedException(ex);
1072	<	}
1073	<	}}).start();
1074	<	Thread.sleep(LONG_DELAY_MS);
1075	<	assertTrue(q.isEmpty());
1066	>
1067	>	Thread t = newStartedThread(new CheckedRunnable() {
1068	>	void realRun() throws InterruptedException {
1069	>	threadAssertFalse
1070	>	(q.tryTransfer(new Object(),
1071	>	SHORT_DELAY_MS, MILLISECONDS));
1072	>	}});
1073	>
1074	>	Thread.sleep(SMALL_DELAY_MS);
1075	>	checkEmpty(q);
1076	>	t.join();
1077		}
1078
1079		/**
#	Line 1078 | Line 1083 | public class LinkedTransferQueueTest ext
1083		public void testTryTransfer7() throws InterruptedException {
1084		final LinkedTransferQueue q = new LinkedTransferQueue();
1085		assertTrue(q.offer(four));
1086	<	new Thread(new Runnable() {
1087	<	public void run() {
1088	<	try {
1089	<	threadAssertTrue(q.tryTransfer(five, LONG_DELAY_MS, TimeUnit.MILLISECONDS));
1090	<	threadAssertTrue(q.isEmpty());
1091	<	} catch (Throwable ex) {
1092	<	threadUnexpectedException(ex);
1093	<	}
1089	<	}}).start();
1086	>
1087	>	Thread t = newStartedThread(new CheckedRunnable() {
1088	>	void realRun() throws InterruptedException {
1089	>	threadAssertTrue(q.tryTransfer(five,
1090	>	MEDIUM_DELAY_MS, MILLISECONDS));
1091	>	threadAssertTrue(q.isEmpty());
1092	>	}});
1093	>
1094		Thread.sleep(SHORT_DELAY_MS);
1095		assertEquals(2, q.size());
1096		assertEquals(four, q.poll());
1097		assertEquals(five, q.poll());
1098	<	assertTrue(q.isEmpty());
1098	>	checkEmpty(q);
1099	>	t.join();
1100		}
1101
1102		/**
#	Line 1102 | Line 1107 | public class LinkedTransferQueueTest ext
1107		final LinkedTransferQueue q = new LinkedTransferQueue();
1108		assertTrue(q.offer(four));
1109		assertEquals(1, q.size());
1110	<	assertFalse(q.tryTransfer(five, SHORT_DELAY_MS, TimeUnit.MILLISECONDS));
1110	>	assertFalse(q.tryTransfer(five, SHORT_DELAY_MS, MILLISECONDS));
1111		assertEquals(1, q.size());
1112		assertEquals(four, q.poll());
1108	–	threadAssertTrue(q.isEmpty());
1113		assertNull(q.poll());
1114	+	checkEmpty(q);
1115		}
1116
1117		private LinkedTransferQueue<Integer> populatedQueue(int n) {
#	Line 1120 | Line 1125 | public class LinkedTransferQueueTest ext
1125		assertFalse(q.isEmpty());
1126		return q;
1127		}
1123	–
1124	–	private static class ConsumerObserver {
1125	–
1126	–	private int waitingConsumers;
1127	–
1128	–	private ConsumerObserver() {
1129	–	}
1130	–
1131	–	private void setWaitingConsumer(int i) {
1132	–	this.waitingConsumers = i;
1133	–	}
1134	–
1135	–	private int getWaitingConsumers() {
1136	–	return waitingConsumers;
1137	–	}
1138	–	}
1128		}

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