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

Comparing jsr166/src/test/tck/LinkedTransferQueueTest.java (file contents):
Revision 1.38 by jsr166, Thu Nov 4 01:04:54 2010 UTC vs.
Revision 1.60 by jsr166, Fri May 15 18:21:19 2015 UTC

#	Line 1 | Line 1
1		/*
2		* Written by Doug Lea with assistance from members of JCP JSR-166
3		* Expert Group and released to the public domain, as explained at
4	<	* http://creativecommons.org/licenses/publicdomain
4	>	* http://creativecommons.org/publicdomain/zero/1.0/
5		* Other contributors include John Vint
6		*/
7
8	<	import java.io.BufferedInputStream;
9	<	import java.io.BufferedOutputStream;
10	<	import java.io.ByteArrayInputStream;
11	<	import java.io.ByteArrayOutputStream;
12	<	import java.io.ObjectInputStream;
13	<	import java.io.ObjectOutputStream;
8	>	import static java.util.concurrent.TimeUnit.MILLISECONDS;
9	>
10		import java.util.ArrayList;
11		import java.util.Arrays;
12	+	import java.util.Collection;
13		import java.util.Iterator;
14		import java.util.List;
15		import java.util.NoSuchElementException;
16	<	import java.util.concurrent.*;
17	<	import static java.util.concurrent.TimeUnit.MILLISECONDS;
18	<	import static java.util.concurrent.TimeUnit.NANOSECONDS;
16	>	import java.util.Queue;
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.LinkedTransferQueue;
22	>
23		import junit.framework.Test;
23	–	import junit.framework.TestSuite;
24
25		@SuppressWarnings({"unchecked", "rawtypes"})
26		public class LinkedTransferQueueTest extends JSR166TestCase {
#	Line 32 | Line 32 | public class LinkedTransferQueueTest ext
32		}
33
34		public static void main(String[] args) {
35	<	junit.textui.TestRunner.run(suite());
35	>	main(suite(), args);
36		}
37
38		public static Test suite() {
#	Line 40 | Line 40 | public class LinkedTransferQueueTest ext
40		new Generic().testSuite());
41		}
42
43	–	void checkEmpty(BlockingQueue q) {
44	–	try {
45	–	assertTrue(q.isEmpty());
46	–	assertEquals(0, q.size());
47	–	assertNull(q.peek());
48	–	assertNull(q.poll());
49	–	assertNull(q.poll(0, MILLISECONDS));
50	–	assertEquals(q.toString(), "[]");
51	–	assertTrue(Arrays.equals(q.toArray(), new Object[0]));
52	–	assertFalse(q.iterator().hasNext());
53	–	try {
54	–	q.element();
55	–	shouldThrow();
56	–	} catch (NoSuchElementException success) {}
57	–	try {
58	–	q.iterator().next();
59	–	shouldThrow();
60	–	} catch (NoSuchElementException success) {}
61	–	try {
62	–	q.remove();
63	–	shouldThrow();
64	–	} catch (NoSuchElementException success) {}
65	–	} catch (InterruptedException ie) {
66	–	threadUnexpectedException(ie);
67	–	}
68	–	}
69	–
43		/**
44		* Constructor builds new queue with size being zero and empty
45		* being true
#	Line 92 | Line 65 | public class LinkedTransferQueueTest ext
65		* NullPointerException
66		*/
67		public void testConstructor3() {
68	+	Collection<Integer> elements = Arrays.asList(new Integer[SIZE]);
69		try {
70	<	Integer[] ints = new Integer[SIZE];
97	<	new LinkedTransferQueue(Arrays.asList(ints));
70	>	new LinkedTransferQueue(elements);
71		shouldThrow();
72		} catch (NullPointerException success) {}
73		}
#	Line 104 | Line 77 | public class LinkedTransferQueueTest ext
77		* throws NullPointerException
78		*/
79		public void testConstructor4() {
80	+	Integer[] ints = new Integer[SIZE];
81	+	for (int i = 0; i < SIZE-1; ++i)
82	+	ints[i] = i;
83	+	Collection<Integer> elements = Arrays.asList(ints);
84		try {
85	<	Integer[] ints = new Integer[SIZE];
109	<	for (int i = 0; i < SIZE - 1; ++i) {
110	<	ints[i] = i;
111	<	}
112	<	new LinkedTransferQueue(Arrays.asList(ints));
85	>	new LinkedTransferQueue(elements);
86		shouldThrow();
87		} catch (NullPointerException success) {}
88		}
#	Line 142 | Line 115 | public class LinkedTransferQueueTest ext
115		* remainingCapacity() always returns Integer.MAX_VALUE
116		*/
117		public void testRemainingCapacity() {
118	<	LinkedTransferQueue<Integer> q = populatedQueue(SIZE);
118	>	BlockingQueue q = populatedQueue(SIZE);
119		for (int i = 0; i < SIZE; ++i) {
120		assertEquals(Integer.MAX_VALUE, q.remainingCapacity());
121		assertEquals(SIZE - i, q.size());
122	<	q.remove();
122	>	assertEquals(i, q.remove());
123		}
124		for (int i = 0; i < SIZE; ++i) {
125		assertEquals(Integer.MAX_VALUE, q.remainingCapacity());
126		assertEquals(i, q.size());
127	<	q.add(i);
127	>	assertTrue(q.add(i));
128		}
129		}
130
131		/**
159	–	* offer(null) throws NullPointerException
160	–	*/
161	–	public void testOfferNull() {
162	–	try {
163	–	LinkedTransferQueue q = new LinkedTransferQueue();
164	–	q.offer(null);
165	–	shouldThrow();
166	–	} catch (NullPointerException success) {}
167	–	}
168	–
169	–	/**
170	–	* add(null) throws NullPointerException
171	–	*/
172	–	public void testAddNull() {
173	–	try {
174	–	LinkedTransferQueue q = new LinkedTransferQueue();
175	–	q.add(null);
176	–	shouldThrow();
177	–	} catch (NullPointerException success) {}
178	–	}
179	–
180	–	/**
181	–	* addAll(null) throws NullPointerException
182	–	*/
183	–	public void testAddAll1() {
184	–	try {
185	–	LinkedTransferQueue q = new LinkedTransferQueue();
186	–	q.addAll(null);
187	–	shouldThrow();
188	–	} catch (NullPointerException success) {}
189	–	}
190	–
191	–	/**
132		* addAll(this) throws IllegalArgumentException
133		*/
134		public void testAddAllSelf() {
135	+	LinkedTransferQueue q = populatedQueue(SIZE);
136		try {
196	–	LinkedTransferQueue q = populatedQueue(SIZE);
137		q.addAll(q);
138		shouldThrow();
139		} catch (IllegalArgumentException success) {}
140		}
141
142		/**
203	–	* addAll of a collection with null elements throws NullPointerException
204	–	*/
205	–	public void testAddAll2() {
206	–	try {
207	–	LinkedTransferQueue q = new LinkedTransferQueue();
208	–	Integer[] ints = new Integer[SIZE];
209	–	q.addAll(Arrays.asList(ints));
210	–	shouldThrow();
211	–	} catch (NullPointerException success) {}
212	–	}
213	–
214	–	/**
143		* addAll of a collection with any null elements throws
144		* NullPointerException after possibly adding some elements
145		*/
146		public void testAddAll3() {
147	+	LinkedTransferQueue q = new LinkedTransferQueue();
148	+	Integer[] ints = new Integer[SIZE];
149	+	for (int i = 0; i < SIZE - 1; ++i)
150	+	ints[i] = i;
151		try {
220	–	LinkedTransferQueue q = new LinkedTransferQueue();
221	–	Integer[] ints = new Integer[SIZE];
222	–	for (int i = 0; i < SIZE - 1; ++i) {
223	–	ints[i] = i;
224	–	}
152		q.addAll(Arrays.asList(ints));
153		shouldThrow();
154		} catch (NullPointerException success) {}
#	Line 245 | Line 172 | public class LinkedTransferQueueTest ext
172		}
173
174		/**
248	–	* put(null) throws NullPointerException
249	–	*/
250	–	public void testPutNull() throws InterruptedException {
251	–	try {
252	–	LinkedTransferQueue q = new LinkedTransferQueue();
253	–	q.put(null);
254	–	shouldThrow();
255	–	} catch (NullPointerException success) {}
256	–	}
257	–
258	–	/**
175		* all elements successfully put are contained
176		*/
177		public void testPut() {
178		LinkedTransferQueue<Integer> q = new LinkedTransferQueue<Integer>();
179		for (int i = 0; i < SIZE; ++i) {
180	<	assertEquals(q.size(), i);
180	>	assertEquals(i, q.size());
181		q.put(i);
182		assertTrue(q.contains(i));
183		}
#	Line 281 | Line 197 | public class LinkedTransferQueueTest ext
197		* take removes existing elements until empty, then blocks interruptibly
198		*/
199		public void testBlockingTake() throws InterruptedException {
200	<	final BlockingQueue<Integer> q = populatedQueue(SIZE);
201	<	final CountDownLatch aboutToWait = new CountDownLatch(1);
200	>	final BlockingQueue q = populatedQueue(SIZE);
201	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
202		Thread t = newStartedThread(new CheckedRunnable() {
203		public void realRun() throws InterruptedException {
204		for (int i = 0; i < SIZE; ++i) {
205	<	assertEquals(i, (int) q.take());
205	>	assertEquals(i, q.take());
206		}
207	<	aboutToWait.countDown();
207	>
208	>	Thread.currentThread().interrupt();
209	>	try {
210	>	q.take();
211	>	shouldThrow();
212	>	} catch (InterruptedException success) {}
213	>	assertFalse(Thread.interrupted());
214	>
215	>	pleaseInterrupt.countDown();
216		try {
217		q.take();
218		shouldThrow();
219		} catch (InterruptedException success) {}
220	+	assertFalse(Thread.interrupted());
221		}});
222
223	<	aboutToWait.await();
224	<	waitForThreadToEnterWaitState(t, SMALL_DELAY_MS);
223	>	await(pleaseInterrupt);
224	>	assertThreadStaysAlive(t);
225		t.interrupt();
226	<	awaitTermination(t, MEDIUM_DELAY_MS);
302	<	checkEmpty(q);
226	>	awaitTermination(t);
227		}
228
229		/**
#	Line 332 | Line 256 | public class LinkedTransferQueueTest ext
256		public void testTimedPoll() throws InterruptedException {
257		LinkedTransferQueue<Integer> q = populatedQueue(SIZE);
258		for (int i = 0; i < SIZE; ++i) {
259	<	long t0 = System.nanoTime();
260	<	assertEquals(i, (int) q.poll(SMALL_DELAY_MS, MILLISECONDS));
261	<	assertTrue(millisElapsedSince(t0) < SMALL_DELAY_MS);
262	<	}
263	<	long t0 = System.nanoTime();
264	<	assertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS));
265	<	assertTrue(millisElapsedSince(t0) >= SHORT_DELAY_MS);
259	>	long startTime = System.nanoTime();
260	>	assertEquals(i, (int) q.poll(LONG_DELAY_MS, MILLISECONDS));
261	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
262	>	}
263	>	long startTime = System.nanoTime();
264	>	assertNull(q.poll(timeoutMillis(), MILLISECONDS));
265	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
266		checkEmpty(q);
267		}
268
#	Line 444 | Line 368 | public class LinkedTransferQueueTest ext
368		}
369
370		/**
447	–	* remove(x) removes x and returns true if present
448	–	*/
449	–	public void testRemoveElement() throws InterruptedException {
450	–	LinkedTransferQueue q = populatedQueue(SIZE);
451	–	for (int i = 1; i < SIZE; i += 2) {
452	–	assertTrue(q.remove(i));
453	–	}
454	–	for (int i = 0; i < SIZE; i += 2) {
455	–	assertTrue(q.remove(i));
456	–	assertFalse(q.remove(i + 1));
457	–	}
458	–	checkEmpty(q);
459	–	}
460	–
461	–	/**
371		* An add following remove(x) succeeds
372		*/
373		public void testRemoveElementAndAdd() throws InterruptedException {
#	Line 566 | Line 475 | public class LinkedTransferQueueTest ext
475		public void testToArray2() {
476		LinkedTransferQueue<Integer> q = populatedQueue(SIZE);
477		Integer[] ints = new Integer[SIZE];
478	<	assertSame(ints, q.toArray(ints));
478	>	Integer[] array = q.toArray(ints);
479	>	assertSame(ints, array);
480		for (int i = 0; i < ints.length; i++) {
481		assertSame(ints[i], q.poll());
482		}
483		}
484
485		/**
576	–	* toArray(null) throws NullPointerException
577	–	*/
578	–	public void testToArray_NullArg() {
579	–	LinkedTransferQueue q = populatedQueue(SIZE);
580	–	try {
581	–	q.toArray(null);
582	–	shouldThrow();
583	–	} catch (NullPointerException success) {}
584	–	}
585	–
586	–	/**
486		* toArray(incompatible array type) throws ArrayStoreException
487		*/
488		public void testToArray1_BadArg() {
#	Line 600 | Line 499 | public class LinkedTransferQueueTest ext
499		public void testIterator() throws InterruptedException {
500		LinkedTransferQueue q = populatedQueue(SIZE);
501		Iterator it = q.iterator();
502	<	int i = 0;
503	<	while (it.hasNext()) {
504	<	assertEquals(it.next(), i++);
505	<	}
502	>	int i;
503	>	for (i = 0; it.hasNext(); i++)
504	>	assertTrue(q.contains(it.next()));
505	>	assertEquals(i, SIZE);
506	>	assertIteratorExhausted(it);
507	>
508	>	it = q.iterator();
509	>	for (i = 0; it.hasNext(); i++)
510	>	assertEquals(it.next(), q.take());
511		assertEquals(i, SIZE);
512	+	assertIteratorExhausted(it);
513	+	}
514	+
515	+	/**
516	+	* iterator of empty collection has no elements
517	+	*/
518	+	public void testEmptyIterator() {
519	+	assertIteratorExhausted(new LinkedTransferQueue().iterator());
520		}
521
522		/**
#	Line 666 | Line 578 | public class LinkedTransferQueueTest ext
578		LinkedTransferQueue q = populatedQueue(SIZE);
579		String s = q.toString();
580		for (int i = 0; i < SIZE; ++i) {
581	<	assertTrue(s.indexOf(String.valueOf(i)) >= 0);
581	>	assertTrue(s.contains(String.valueOf(i)));
582		}
583		}
584
#	Line 675 | Line 587 | public class LinkedTransferQueueTest ext
587		*/
588		public void testOfferInExecutor() {
589		final LinkedTransferQueue q = new LinkedTransferQueue();
590	<	final CountDownLatch threadsStarted = new CountDownLatch(2);
590	>	final CheckedBarrier threadsStarted = new CheckedBarrier(2);
591		ExecutorService executor = Executors.newFixedThreadPool(2);
592
593		executor.execute(new CheckedRunnable() {
594		public void realRun() throws InterruptedException {
683	–	threadsStarted.countDown();
595		threadsStarted.await();
596	<	assertTrue(q.offer(one, MEDIUM_DELAY_MS, MILLISECONDS));
596	>	assertTrue(q.offer(one, LONG_DELAY_MS, MILLISECONDS));
597		}});
598
599		executor.execute(new CheckedRunnable() {
600		public void realRun() throws InterruptedException {
690	–	threadsStarted.countDown();
601		threadsStarted.await();
602		assertSame(one, q.take());
603		checkEmpty(q);
#	Line 701 | Line 611 | public class LinkedTransferQueueTest ext
611		*/
612		public void testPollInExecutor() {
613		final LinkedTransferQueue q = new LinkedTransferQueue();
614	<	final CountDownLatch threadsStarted = new CountDownLatch(2);
614	>	final CheckedBarrier threadsStarted = new CheckedBarrier(2);
615		ExecutorService executor = Executors.newFixedThreadPool(2);
616
617		executor.execute(new CheckedRunnable() {
618		public void realRun() throws InterruptedException {
619		assertNull(q.poll());
710	–	threadsStarted.countDown();
620		threadsStarted.await();
621	<	assertSame(one, q.poll(SMALL_DELAY_MS, MILLISECONDS));
621	>	assertSame(one, q.poll(LONG_DELAY_MS, MILLISECONDS));
622		checkEmpty(q);
623		}});
624
625		executor.execute(new CheckedRunnable() {
626		public void realRun() throws InterruptedException {
718	–	threadsStarted.countDown();
627		threadsStarted.await();
628		q.put(one);
629		}});
#	Line 727 | Line 635 | public class LinkedTransferQueueTest ext
635		* A deserialized serialized queue has same elements in same order
636		*/
637		public void testSerialization() throws Exception {
638	<	LinkedTransferQueue q = populatedQueue(SIZE);
639	<
732	<	ByteArrayOutputStream bout = new ByteArrayOutputStream(10000);
733	<	ObjectOutputStream out
734	<	= new ObjectOutputStream(new BufferedOutputStream(bout));
735	<	out.writeObject(q);
736	<	out.close();
737	<
738	<	ByteArrayInputStream bin
739	<	= new ByteArrayInputStream(bout.toByteArray());
740	<	ObjectInputStream in
741	<	= new ObjectInputStream(new BufferedInputStream(bin));
742	<	LinkedTransferQueue r = (LinkedTransferQueue) in.readObject();
638	>	Queue x = populatedQueue(SIZE);
639	>	Queue y = serialClone(x);
640
641	<	assertEquals(q.size(), r.size());
642	<	assertEquals(q.toString(), r.toString());
643	<	assertTrue(Arrays.equals(q.toArray(), r.toArray()));
644	<	while (!q.isEmpty()) {
645	<	assertEquals(q.remove(), r.remove());
641	>	assertNotSame(y, x);
642	>	assertEquals(x.size(), y.size());
643	>	assertEquals(x.toString(), y.toString());
644	>	assertTrue(Arrays.equals(x.toArray(), y.toArray()));
645	>	while (!x.isEmpty()) {
646	>	assertFalse(y.isEmpty());
647	>	assertEquals(x.remove(), y.remove());
648		}
649	<	}
751	<
752	<	/**
753	<	* drainTo(null) throws NullPointerException
754	<	*/
755	<	public void testDrainToNull() {
756	<	LinkedTransferQueue q = populatedQueue(SIZE);
757	<	try {
758	<	q.drainTo(null);
759	<	shouldThrow();
760	<	} catch (NullPointerException success) {}
761	<	}
762	<
763	<	/**
764	<	* drainTo(this) throws IllegalArgumentException
765	<	*/
766	<	public void testDrainToSelf() {
767	<	LinkedTransferQueue q = populatedQueue(SIZE);
768	<	try {
769	<	q.drainTo(q);
770	<	shouldThrow();
771	<	} catch (IllegalArgumentException success) {}
649	>	assertTrue(y.isEmpty());
650		}
651
652		/**
#	Line 778 | Line 656 | public class LinkedTransferQueueTest ext
656		LinkedTransferQueue q = populatedQueue(SIZE);
657		ArrayList l = new ArrayList();
658		q.drainTo(l);
659	<	assertEquals(q.size(), 0);
660	<	assertEquals(l.size(), SIZE);
659	>	assertEquals(0, q.size());
660	>	assertEquals(SIZE, l.size());
661		for (int i = 0; i < SIZE; ++i) {
662	<	assertEquals(l.get(i), i);
662	>	assertEquals(i, l.get(i));
663		}
664		q.add(zero);
665		q.add(one);
#	Line 790 | Line 668 | public class LinkedTransferQueueTest ext
668		assertTrue(q.contains(one));
669		l.clear();
670		q.drainTo(l);
671	<	assertEquals(q.size(), 0);
672	<	assertEquals(l.size(), 2);
671	>	assertEquals(0, q.size());
672	>	assertEquals(2, l.size());
673		for (int i = 0; i < 2; ++i) {
674	<	assertEquals(l.get(i), i);
674	>	assertEquals(i, l.get(i));
675		}
676		}
677
#	Line 809 | Line 687 | public class LinkedTransferQueueTest ext
687		ArrayList l = new ArrayList();
688		q.drainTo(l);
689		assertTrue(l.size() >= SIZE);
690	<	for (int i = 0; i < SIZE; ++i) {
691	<	assertEquals(l.get(i), i);
814	<	}
690	>	for (int i = 0; i < SIZE; ++i)
691	>	assertEquals(i, l.get(i));
692		awaitTermination(t, MEDIUM_DELAY_MS);
693		assertTrue(q.size() + l.size() >= SIZE);
694		}
695
696		/**
820	–	* drainTo(null, n) throws NullPointerException
821	–	*/
822	–	public void testDrainToNullN() {
823	–	LinkedTransferQueue q = populatedQueue(SIZE);
824	–	try {
825	–	q.drainTo(null, SIZE);
826	–	shouldThrow();
827	–	} catch (NullPointerException success) {}
828	–	}
829	–
830	–	/**
831	–	* drainTo(this, n) throws IllegalArgumentException
832	–	*/
833	–	public void testDrainToSelfN() {
834	–	LinkedTransferQueue q = populatedQueue(SIZE);
835	–	try {
836	–	q.drainTo(q, SIZE);
837	–	shouldThrow();
838	–	} catch (IllegalArgumentException success) {}
839	–	}
840	–
841	–	/**
697		* drainTo(c, n) empties first min(n, size) elements of queue into c
698		*/
699		public void testDrainToN() {
#	Line 850 | Line 705 | public class LinkedTransferQueueTest ext
705		ArrayList l = new ArrayList();
706		q.drainTo(l, i);
707		int k = (i < SIZE) ? i : SIZE;
708	<	assertEquals(l.size(), k);
709	<	assertEquals(q.size(), SIZE - k);
710	<	for (int j = 0; j < k; ++j) {
711	<	assertEquals(l.get(j), j);
712	<	}
858	<	while (q.poll() != null)
859	<	;
708	>	assertEquals(k, l.size());
709	>	assertEquals(SIZE - k, q.size());
710	>	for (int j = 0; j < k; ++j)
711	>	assertEquals(j, l.get(j));
712	>	do {} while (q.poll() != null);
713		}
714		}
715
#	Line 866 | Line 719 | public class LinkedTransferQueueTest ext
719		*/
720		public void testWaitingConsumer() throws InterruptedException {
721		final LinkedTransferQueue q = new LinkedTransferQueue();
722	<	assertEquals(q.getWaitingConsumerCount(), 0);
722	>	assertEquals(0, q.getWaitingConsumerCount());
723		assertFalse(q.hasWaitingConsumer());
724		final CountDownLatch threadStarted = new CountDownLatch(1);
725
#	Line 874 | Line 727 | public class LinkedTransferQueueTest ext
727		public void realRun() throws InterruptedException {
728		threadStarted.countDown();
729		assertSame(one, q.poll(LONG_DELAY_MS, MILLISECONDS));
730	<	assertEquals(q.getWaitingConsumerCount(), 0);
730	>	assertEquals(0, q.getWaitingConsumerCount());
731		assertFalse(q.hasWaitingConsumer());
732		}});
733
734		threadStarted.await();
735		waitForThreadToEnterWaitState(t, SMALL_DELAY_MS);
736	<	assertEquals(q.getWaitingConsumerCount(), 1);
736	>	assertEquals(1, q.getWaitingConsumerCount());
737		assertTrue(q.hasWaitingConsumer());
738
739		assertTrue(q.offer(one));
740	<	assertEquals(q.getWaitingConsumerCount(), 0);
740	>	assertEquals(0, q.getWaitingConsumerCount());
741		assertFalse(q.hasWaitingConsumer());
742
743		awaitTermination(t, MEDIUM_DELAY_MS);
#	Line 1008 | Line 861 | public class LinkedTransferQueueTest ext
861		* tryTransfer(null) throws NullPointerException
862		*/
863		public void testTryTransfer1() {
864	+	final LinkedTransferQueue q = new LinkedTransferQueue();
865		try {
1012	–	final LinkedTransferQueue q = new LinkedTransferQueue();
866		q.tryTransfer(null);
867		shouldThrow();
868		} catch (NullPointerException success) {}
#	Line 1071 | Line 924 | public class LinkedTransferQueueTest ext
924		}
925
926		/**
927	<	* tryTransfer waits the amount given if interrupted, and
1075	<	* throws interrupted exception
927	>	* tryTransfer blocks interruptibly if no takers
928		*/
929		public void testTryTransfer5() throws InterruptedException {
930		final LinkedTransferQueue q = new LinkedTransferQueue();
931	<	final CountDownLatch threadStarted = new CountDownLatch(1);
931	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
932	>	assertTrue(q.isEmpty());
933
934		Thread t = newStartedThread(new CheckedRunnable() {
935		public void realRun() throws InterruptedException {
936	<	long t0 = System.nanoTime();
937	<	threadStarted.countDown();
936	>	Thread.currentThread().interrupt();
937	>	try {
938	>	q.tryTransfer(new Object(), LONG_DELAY_MS, MILLISECONDS);
939	>	shouldThrow();
940	>	} catch (InterruptedException success) {}
941	>	assertFalse(Thread.interrupted());
942	>
943	>	pleaseInterrupt.countDown();
944		try {
945		q.tryTransfer(new Object(), LONG_DELAY_MS, MILLISECONDS);
946		shouldThrow();
947		} catch (InterruptedException success) {}
948	<	assertTrue(millisElapsedSince(t0) >= SHORT_DELAY_MS);
948	>	assertFalse(Thread.interrupted());
949		}});
950
951	<	threadStarted.await();
952	<	Thread.sleep(SHORT_DELAY_MS);
951	>	await(pleaseInterrupt);
952	>	assertThreadStaysAlive(t);
953		t.interrupt();
954	<	awaitTermination(t, MEDIUM_DELAY_MS);
954	>	awaitTermination(t);
955		checkEmpty(q);
956		}
957
#	Line 1106 | Line 965 | public class LinkedTransferQueueTest ext
965		public void realRun() throws InterruptedException {
966		long t0 = System.nanoTime();
967		assertFalse(q.tryTransfer(new Object(),
968	<	SHORT_DELAY_MS, MILLISECONDS));
969	<	assertTrue(millisElapsedSince(t0) >= SHORT_DELAY_MS);
968	>	timeoutMillis(), MILLISECONDS));
969	>	assertTrue(millisElapsedSince(t0) >= timeoutMillis());
970		checkEmpty(q);
971		}});
972
973	<	awaitTermination(t, MEDIUM_DELAY_MS);
973	>	awaitTermination(t);
974		checkEmpty(q);
975		}
976
#	Line 1139 | Line 998 | public class LinkedTransferQueueTest ext
998		}
999
1000		/**
1001	<	* tryTransfer attempts to enqueue into the q and fails returning
1002	<	* false not enqueueing and the successive poll is null
1001	>	* tryTransfer attempts to enqueue into the queue and fails
1002	>	* returning false not enqueueing and the successive poll is null
1003		*/
1004		public void testTryTransfer8() throws InterruptedException {
1005		final LinkedTransferQueue q = new LinkedTransferQueue();
1006		assertTrue(q.offer(four));
1007		assertEquals(1, q.size());
1008		long t0 = System.nanoTime();
1009	<	assertFalse(q.tryTransfer(five, SHORT_DELAY_MS, MILLISECONDS));
1010	<	assertTrue(millisElapsedSince(t0) >= SHORT_DELAY_MS);
1009	>	assertFalse(q.tryTransfer(five, timeoutMillis(), MILLISECONDS));
1010	>	assertTrue(millisElapsedSince(t0) >= timeoutMillis());
1011		assertEquals(1, q.size());
1012		assertSame(four, q.poll());
1013		assertNull(q.poll());
#	Line 1166 | Line 1025 | public class LinkedTransferQueueTest ext
1025		assertFalse(q.isEmpty());
1026		return q;
1027		}
1028	+
1029	+	/**
1030	+	* remove(null), contains(null) always return false
1031	+	*/
1032	+	public void testNeverContainsNull() {
1033	+	Collection<?>[] qs = {
1034	+	new LinkedTransferQueue<Object>(),
1035	+	populatedQueue(2),
1036	+	};
1037	+
1038	+	for (Collection<?> q : qs) {
1039	+	assertFalse(q.contains(null));
1040	+	assertFalse(q.remove(null));
1041	+	}
1042	+	}
1043		}

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