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

Comparing jsr166/src/test/tck/LinkedTransferQueueTest.java (file contents):
Revision 1.30 by jsr166, Thu Oct 28 22:20:47 2010 UTC vs.
Revision 1.53 by jsr166, Sun Nov 23 22:27:06 2014 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;
14	<	import java.util.ArrayList;
8	>	import junit.framework.*;
9		import java.util.Arrays;
10	+	import java.util.ArrayList;
11	+	import java.util.Collection;
12		import java.util.Iterator;
13		import java.util.List;
14		import java.util.NoSuchElementException;
15	<	import java.util.concurrent.*;
15	>	import java.util.Queue;
16	>	import java.util.concurrent.BlockingQueue;
17	>	import java.util.concurrent.CountDownLatch;
18	>	import java.util.concurrent.Executors;
19	>	import java.util.concurrent.ExecutorService;
20	>	import java.util.concurrent.LinkedTransferQueue;
21		import static java.util.concurrent.TimeUnit.MILLISECONDS;
22		import static java.util.concurrent.TimeUnit.NANOSECONDS;
22	–	import junit.framework.Test;
23	–	import junit.framework.TestSuite;
23
24		@SuppressWarnings({"unchecked", "rawtypes"})
25		public class LinkedTransferQueueTest extends JSR166TestCase {
#	Line 40 | Line 39 | public class LinkedTransferQueueTest ext
39		new Generic().testSuite());
40		}
41
43	–	void checkEmpty(LinkedTransferQueue q) throws InterruptedException {
44	–	assertTrue(q.isEmpty());
45	–	assertEquals(0, q.size());
46	–	assertNull(q.peek());
47	–	assertNull(q.poll());
48	–	assertNull(q.poll(0, MILLISECONDS));
49	–	assertEquals(q.toString(), "[]");
50	–	assertTrue(Arrays.equals(q.toArray(), new Object[0]));
51	–	assertFalse(q.iterator().hasNext());
52	–	try {
53	–	q.element();
54	–	shouldThrow();
55	–	} catch (NoSuchElementException success) {}
56	–	try {
57	–	q.iterator().next();
58	–	shouldThrow();
59	–	} catch (NoSuchElementException success) {}
60	–	try {
61	–	q.remove();
62	–	shouldThrow();
63	–	} catch (NoSuchElementException success) {}
64	–	}
65	–
42		/**
43		* Constructor builds new queue with size being zero and empty
44		* being true
#	Line 88 | Line 64 | public class LinkedTransferQueueTest ext
64		* NullPointerException
65		*/
66		public void testConstructor3() {
67	+	Collection<Integer> elements = Arrays.asList(new Integer[SIZE]);
68		try {
69	<	Integer[] ints = new Integer[SIZE];
93	<	new LinkedTransferQueue(Arrays.asList(ints));
69	>	new LinkedTransferQueue(elements);
70		shouldThrow();
71		} catch (NullPointerException success) {}
72		}
#	Line 100 | Line 76 | public class LinkedTransferQueueTest ext
76		* throws NullPointerException
77		*/
78		public void testConstructor4() {
79	+	Integer[] ints = new Integer[SIZE];
80	+	for (int i = 0; i < SIZE-1; ++i)
81	+	ints[i] = i;
82	+	Collection<Integer> elements = Arrays.asList(ints);
83		try {
84	<	Integer[] ints = new Integer[SIZE];
105	<	for (int i = 0; i < SIZE - 1; ++i) {
106	<	ints[i] = i;
107	<	}
108	<	new LinkedTransferQueue(Arrays.asList(ints));
84	>	new LinkedTransferQueue(elements);
85		shouldThrow();
86		} catch (NullPointerException success) {}
87		}
#	Line 152 | Line 128 | public class LinkedTransferQueueTest ext
128		}
129
130		/**
155	–	* offer(null) throws NullPointerException
156	–	*/
157	–	public void testOfferNull() {
158	–	try {
159	–	LinkedTransferQueue q = new LinkedTransferQueue();
160	–	q.offer(null);
161	–	shouldThrow();
162	–	} catch (NullPointerException success) {}
163	–	}
164	–
165	–	/**
166	–	* add(null) throws NullPointerException
167	–	*/
168	–	public void testAddNull() {
169	–	try {
170	–	LinkedTransferQueue q = new LinkedTransferQueue();
171	–	q.add(null);
172	–	shouldThrow();
173	–	} catch (NullPointerException success) {}
174	–	}
175	–
176	–	/**
177	–	* addAll(null) throws NullPointerException
178	–	*/
179	–	public void testAddAll1() {
180	–	try {
181	–	LinkedTransferQueue q = new LinkedTransferQueue();
182	–	q.addAll(null);
183	–	shouldThrow();
184	–	} catch (NullPointerException success) {}
185	–	}
186	–
187	–	/**
131		* addAll(this) throws IllegalArgumentException
132		*/
133		public void testAddAllSelf() {
#	Line 196 | Line 139 | public class LinkedTransferQueueTest ext
139		}
140
141		/**
199	–	* addAll of a collection with null elements throws NullPointerException
200	–	*/
201	–	public void testAddAll2() {
202	–	try {
203	–	LinkedTransferQueue q = new LinkedTransferQueue();
204	–	Integer[] ints = new Integer[SIZE];
205	–	q.addAll(Arrays.asList(ints));
206	–	shouldThrow();
207	–	} catch (NullPointerException success) {}
208	–	}
209	–
210	–	/**
142		* addAll of a collection with any null elements throws
143		* NullPointerException after possibly adding some elements
144		*/
#	Line 241 | Line 172 | public class LinkedTransferQueueTest ext
172		}
173
174		/**
244	–	* put(null) throws NullPointerException
245	–	*/
246	–	public void testPutNull() throws InterruptedException {
247	–	try {
248	–	LinkedTransferQueue q = new LinkedTransferQueue();
249	–	q.put(null);
250	–	shouldThrow();
251	–	} catch (NullPointerException success) {}
252	–	}
253	–
254	–	/**
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 277 | 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 LinkedTransferQueue<Integer> q = populatedQueue(SIZE);
201	<	Thread t = new Thread(new CheckedRunnable() {
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	+
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	<	t.start();
224	<	Thread.sleep(SHORT_DELAY_MS);
223	>	await(pleaseInterrupt);
224	>	assertThreadStaysAlive(t);
225		t.interrupt();
226	<	awaitTermination(t, MEDIUM_DELAY_MS);
296	<	checkEmpty(q);
226	>	awaitTermination(t);
227		}
228
229		/**
#	Line 326 | 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();
259	>	long startTime = System.nanoTime();
260		assertEquals(i, (int) q.poll(LONG_DELAY_MS, MILLISECONDS));
261	<	assertTrue(millisElapsedSince(t0) < SMALL_DELAY_MS);
261	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
262		}
263	<	assertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS));
263	>	long startTime = System.nanoTime();
264	>	assertNull(q.poll(timeoutMillis(), MILLISECONDS));
265	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
266		checkEmpty(q);
267		}
268
#	Line 339 | Line 271 | public class LinkedTransferQueueTest ext
271		* returning timeout status
272		*/
273		public void testInterruptedTimedPoll() throws InterruptedException {
274	<	final LinkedTransferQueue<Integer> q = populatedQueue(SIZE);
274	>	final BlockingQueue<Integer> q = populatedQueue(SIZE);
275	>	final CountDownLatch aboutToWait = new CountDownLatch(1);
276		Thread t = newStartedThread(new CheckedRunnable() {
277		public void realRun() throws InterruptedException {
278		for (int i = 0; i < SIZE; ++i) {
#	Line 347 | Line 280 | public class LinkedTransferQueueTest ext
280		assertEquals(i, (int) q.poll(LONG_DELAY_MS, MILLISECONDS));
281		assertTrue(millisElapsedSince(t0) < SMALL_DELAY_MS);
282		}
283	+	long t0 = System.nanoTime();
284	+	aboutToWait.countDown();
285		try {
286	<	q.poll(LONG_DELAY_MS, MILLISECONDS);
286	>	q.poll(MEDIUM_DELAY_MS, MILLISECONDS);
287		shouldThrow();
288	<	} catch (InterruptedException success) {}
288	>	} catch (InterruptedException success) {
289	>	assertTrue(millisElapsedSince(t0) < MEDIUM_DELAY_MS);
290	>	}
291		}});
292
293	<	Thread.sleep(SMALL_DELAY_MS);
293	>	aboutToWait.await();
294	>	waitForThreadToEnterWaitState(t, SMALL_DELAY_MS);
295		t.interrupt();
296		awaitTermination(t, MEDIUM_DELAY_MS);
297		checkEmpty(q);
298		}
299
300		/**
301	+	* timed poll after thread interrupted throws InterruptedException
302	+	* instead of returning timeout status
303	+	*/
304	+	public void testTimedPollAfterInterrupt() throws InterruptedException {
305	+	final BlockingQueue<Integer> q = populatedQueue(SIZE);
306	+	Thread t = newStartedThread(new CheckedRunnable() {
307	+	public void realRun() throws InterruptedException {
308	+	Thread.currentThread().interrupt();
309	+	for (int i = 0; i < SIZE; ++i) {
310	+	long t0 = System.nanoTime();
311	+	assertEquals(i, (int) q.poll(LONG_DELAY_MS, MILLISECONDS));
312	+	assertTrue(millisElapsedSince(t0) < SMALL_DELAY_MS);
313	+	}
314	+	try {
315	+	q.poll(MEDIUM_DELAY_MS, MILLISECONDS);
316	+	shouldThrow();
317	+	} catch (InterruptedException success) {}
318	+	}});
319	+
320	+	awaitTermination(t, MEDIUM_DELAY_MS);
321	+	checkEmpty(q);
322	+	}
323	+
324	+	/**
325		* peek returns next element, or null if empty
326		*/
327		public void testPeek() throws InterruptedException {
#	Line 406 | Line 368 | public class LinkedTransferQueueTest ext
368		}
369
370		/**
409	–	* remove(x) removes x and returns true if present
410	–	*/
411	–	public void testRemoveElement() throws InterruptedException {
412	–	LinkedTransferQueue q = populatedQueue(SIZE);
413	–	for (int i = 1; i < SIZE; i += 2) {
414	–	assertTrue(q.remove(i));
415	–	}
416	–	for (int i = 0; i < SIZE; i += 2) {
417	–	assertTrue(q.remove(i));
418	–	assertFalse(q.remove(i + 1));
419	–	}
420	–	checkEmpty(q);
421	–	}
422	–
423	–	/**
371		* An add following remove(x) succeeds
372		*/
373		public void testRemoveElementAndAdd() throws InterruptedException {
#	Line 512 | Line 459 | public class LinkedTransferQueueTest ext
459		}
460
461		/**
462	<	* toArray() contains all elements
462	>	* toArray() contains all elements in FIFO order
463		*/
464	<	public void testToArray() throws InterruptedException {
464	>	public void testToArray() {
465		LinkedTransferQueue q = populatedQueue(SIZE);
466		Object[] o = q.toArray();
467		for (int i = 0; i < o.length; i++) {
468	<	assertEquals(o[i], q.take());
468	>	assertSame(o[i], q.poll());
469		}
470		}
471
472		/**
473	<	* toArray(a) contains all elements
473	>	* toArray(a) contains all elements in FIFO order
474		*/
475	<	public void testToArray2() throws InterruptedException {
475	>	public void testToArray2() {
476		LinkedTransferQueue<Integer> q = populatedQueue(SIZE);
477		Integer[] ints = new Integer[SIZE];
478	<	ints = q.toArray(ints);
478	>	Integer[] array = q.toArray(ints);
479	>	assertSame(ints, array);
480		for (int i = 0; i < ints.length; i++) {
481	<	assertEquals(ints[i], q.take());
481	>	assertSame(ints[i], q.poll());
482		}
483		}
484
485		/**
486	<	* toArray(null) throws NullPointerException
539	<	*/
540	<	public void testToArray_BadArg() {
541	<	LinkedTransferQueue q = populatedQueue(SIZE);
542	<	try {
543	<	Object o[] = q.toArray(null);
544	<	shouldThrow();
545	<	} catch (NullPointerException success) {}
546	<	}
547	<
548	<	/**
549	<	* toArray(incompatible array type) throws CCE
486	>	* toArray(incompatible array type) throws ArrayStoreException
487		*/
488		public void testToArray1_BadArg() {
489		LinkedTransferQueue q = populatedQueue(SIZE);
490		try {
491	<	Object o[] = q.toArray(new String[10]);
491	>	q.toArray(new String[10]);
492		shouldThrow();
493		} catch (ArrayStoreException success) {}
494		}
#	Line 628 | Line 565 | public class LinkedTransferQueueTest ext
565		LinkedTransferQueue q = populatedQueue(SIZE);
566		String s = q.toString();
567		for (int i = 0; i < SIZE; ++i) {
568	<	assertTrue(s.indexOf(String.valueOf(i)) >= 0);
568	>	assertTrue(s.contains(String.valueOf(i)));
569		}
570		}
571
#	Line 637 | Line 574 | public class LinkedTransferQueueTest ext
574		*/
575		public void testOfferInExecutor() {
576		final LinkedTransferQueue q = new LinkedTransferQueue();
577	<	q.add(one);
641	<	q.add(two);
577	>	final CheckedBarrier threadsStarted = new CheckedBarrier(2);
578		ExecutorService executor = Executors.newFixedThreadPool(2);
579
580		executor.execute(new CheckedRunnable() {
581	<	public void realRun() {
582	<	assertTrue(q.offer(three, MEDIUM_DELAY_MS, MILLISECONDS));
581	>	public void realRun() throws InterruptedException {
582	>	threadsStarted.await();
583	>	assertTrue(q.offer(one, LONG_DELAY_MS, MILLISECONDS));
584		}});
585
586		executor.execute(new CheckedRunnable() {
587		public void realRun() throws InterruptedException {
588	<	Thread.sleep(SMALL_DELAY_MS);
588	>	threadsStarted.await();
589		assertSame(one, q.take());
590	+	checkEmpty(q);
591		}});
592
593		joinPool(executor);
#	Line 660 | Line 598 | public class LinkedTransferQueueTest ext
598		*/
599		public void testPollInExecutor() {
600		final LinkedTransferQueue q = new LinkedTransferQueue();
601	+	final CheckedBarrier threadsStarted = new CheckedBarrier(2);
602		ExecutorService executor = Executors.newFixedThreadPool(2);
603
604		executor.execute(new CheckedRunnable() {
605		public void realRun() throws InterruptedException {
606		assertNull(q.poll());
607	<	assertSame(one, q.poll(MEDIUM_DELAY_MS, MILLISECONDS));
608	<	assertTrue(q.isEmpty());
607	>	threadsStarted.await();
608	>	assertSame(one, q.poll(LONG_DELAY_MS, MILLISECONDS));
609	>	checkEmpty(q);
610		}});
611
612		executor.execute(new CheckedRunnable() {
613		public void realRun() throws InterruptedException {
614	<	Thread.sleep(SMALL_DELAY_MS);
614	>	threadsStarted.await();
615		q.put(one);
616		}});
617
#	Line 682 | Line 622 | public class LinkedTransferQueueTest ext
622		* A deserialized serialized queue has same elements in same order
623		*/
624		public void testSerialization() throws Exception {
625	<	LinkedTransferQueue q = populatedQueue(SIZE);
625	>	Queue x = populatedQueue(SIZE);
626	>	Queue y = serialClone(x);
627
628	<	ByteArrayOutputStream bout = new ByteArrayOutputStream(10000);
629	<	ObjectOutputStream out
630	<	= new ObjectOutputStream(new BufferedOutputStream(bout));
631	<	out.writeObject(q);
632	<	out.close();
633	<
634	<	ByteArrayInputStream bin
694	<	= new ByteArrayInputStream(bout.toByteArray());
695	<	ObjectInputStream in
696	<	= new ObjectInputStream(new BufferedInputStream(bin));
697	<	LinkedTransferQueue r = (LinkedTransferQueue) in.readObject();
698	<
699	<	assertEquals(q.size(), r.size());
700	<	while (!q.isEmpty()) {
701	<	assertEquals(q.remove(), r.remove());
628	>	assertNotSame(y, x);
629	>	assertEquals(x.size(), y.size());
630	>	assertEquals(x.toString(), y.toString());
631	>	assertTrue(Arrays.equals(x.toArray(), y.toArray()));
632	>	while (!x.isEmpty()) {
633	>	assertFalse(y.isEmpty());
634	>	assertEquals(x.remove(), y.remove());
635		}
636	<	}
704	<
705	<	/**
706	<	* drainTo(null) throws NullPointerException
707	<	*/
708	<	public void testDrainToNull() {
709	<	LinkedTransferQueue q = populatedQueue(SIZE);
710	<	try {
711	<	q.drainTo(null);
712	<	shouldThrow();
713	<	} catch (NullPointerException success) {}
714	<	}
715	<
716	<	/**
717	<	* drainTo(this) throws IllegalArgumentException
718	<	*/
719	<	public void testDrainToSelf() {
720	<	LinkedTransferQueue q = populatedQueue(SIZE);
721	<	try {
722	<	q.drainTo(q);
723	<	shouldThrow();
724	<	} catch (IllegalArgumentException success) {}
636	>	assertTrue(y.isEmpty());
637		}
638
639		/**
#	Line 731 | Line 643 | public class LinkedTransferQueueTest ext
643		LinkedTransferQueue q = populatedQueue(SIZE);
644		ArrayList l = new ArrayList();
645		q.drainTo(l);
646	<	assertEquals(q.size(), 0);
647	<	assertEquals(l.size(), SIZE);
646	>	assertEquals(0, q.size());
647	>	assertEquals(SIZE, l.size());
648		for (int i = 0; i < SIZE; ++i) {
649	<	assertEquals(l.get(i), i);
649	>	assertEquals(i, l.get(i));
650		}
651		q.add(zero);
652		q.add(one);
#	Line 743 | Line 655 | public class LinkedTransferQueueTest ext
655		assertTrue(q.contains(one));
656		l.clear();
657		q.drainTo(l);
658	<	assertEquals(q.size(), 0);
659	<	assertEquals(l.size(), 2);
658	>	assertEquals(0, q.size());
659	>	assertEquals(2, l.size());
660		for (int i = 0; i < 2; ++i) {
661	<	assertEquals(l.get(i), i);
661	>	assertEquals(i, l.get(i));
662		}
663		}
664
#	Line 762 | Line 674 | public class LinkedTransferQueueTest ext
674		ArrayList l = new ArrayList();
675		q.drainTo(l);
676		assertTrue(l.size() >= SIZE);
677	<	for (int i = 0; i < SIZE; ++i) {
678	<	assertEquals(l.get(i), i);
767	<	}
677	>	for (int i = 0; i < SIZE; ++i)
678	>	assertEquals(i, l.get(i));
679		awaitTermination(t, MEDIUM_DELAY_MS);
680		assertTrue(q.size() + l.size() >= SIZE);
681		}
682
683		/**
773	–	* drainTo(null, n) throws NullPointerException
774	–	*/
775	–	public void testDrainToNullN() {
776	–	LinkedTransferQueue q = populatedQueue(SIZE);
777	–	try {
778	–	q.drainTo(null, SIZE);
779	–	shouldThrow();
780	–	} catch (NullPointerException success) {}
781	–	}
782	–
783	–	/**
784	–	* drainTo(this, n) throws IllegalArgumentException
785	–	*/
786	–	public void testDrainToSelfN() {
787	–	LinkedTransferQueue q = populatedQueue(SIZE);
788	–	try {
789	–	q.drainTo(q, SIZE);
790	–	shouldThrow();
791	–	} catch (IllegalArgumentException success) {}
792	–	}
793	–
794	–	/**
684		* drainTo(c, n) empties first min(n, size) elements of queue into c
685		*/
686		public void testDrainToN() {
#	Line 803 | Line 692 | public class LinkedTransferQueueTest ext
692		ArrayList l = new ArrayList();
693		q.drainTo(l, i);
694		int k = (i < SIZE) ? i : SIZE;
695	<	assertEquals(l.size(), k);
696	<	assertEquals(q.size(), SIZE - k);
697	<	for (int j = 0; j < k; ++j) {
698	<	assertEquals(l.get(j), j);
810	<	}
695	>	assertEquals(k, l.size());
696	>	assertEquals(SIZE - k, q.size());
697	>	for (int j = 0; j < k; ++j)
698	>	assertEquals(j, l.get(j));
699		while (q.poll() != null)
700		;
701		}
#	Line 819 | Line 707 | public class LinkedTransferQueueTest ext
707		*/
708		public void testWaitingConsumer() throws InterruptedException {
709		final LinkedTransferQueue q = new LinkedTransferQueue();
710	<	assertEquals(q.getWaitingConsumerCount(), 0);
710	>	assertEquals(0, q.getWaitingConsumerCount());
711		assertFalse(q.hasWaitingConsumer());
712	+	final CountDownLatch threadStarted = new CountDownLatch(1);
713
714		Thread t = newStartedThread(new CheckedRunnable() {
715		public void realRun() throws InterruptedException {
716	<	Thread.sleep(SMALL_DELAY_MS);
717	<	assertTrue(q.hasWaitingConsumer());
718	<	assertEquals(q.getWaitingConsumerCount(), 1);
830	<	assertTrue(q.offer(one));
716	>	threadStarted.countDown();
717	>	assertSame(one, q.poll(LONG_DELAY_MS, MILLISECONDS));
718	>	assertEquals(0, q.getWaitingConsumerCount());
719		assertFalse(q.hasWaitingConsumer());
832	–	assertEquals(q.getWaitingConsumerCount(), 0);
720		}});
721
722	<	assertSame(one, q.poll(LONG_DELAY_MS, MILLISECONDS));
723	<	assertEquals(q.getWaitingConsumerCount(), 0);
722	>	threadStarted.await();
723	>	waitForThreadToEnterWaitState(t, SMALL_DELAY_MS);
724	>	assertEquals(1, q.getWaitingConsumerCount());
725	>	assertTrue(q.hasWaitingConsumer());
726	>
727	>	assertTrue(q.offer(one));
728	>	assertEquals(0, q.getWaitingConsumerCount());
729		assertFalse(q.hasWaitingConsumer());
730	+
731		awaitTermination(t, MEDIUM_DELAY_MS);
732		}
733
#	Line 856 | Line 749 | public class LinkedTransferQueueTest ext
749		public void testTransfer2() throws InterruptedException {
750		final LinkedTransferQueue<Integer> q
751		= new LinkedTransferQueue<Integer>();
752	+	final CountDownLatch threadStarted = new CountDownLatch(1);
753
754		Thread t = newStartedThread(new CheckedRunnable() {
755		public void realRun() throws InterruptedException {
756	<	q.transfer(SIZE);
757	<	assertTrue(q.isEmpty());
756	>	threadStarted.countDown();
757	>	q.transfer(five);
758	>	checkEmpty(q);
759		}});
760
761	<	Thread.sleep(SHORT_DELAY_MS);
761	>	threadStarted.await();
762	>	waitForThreadToEnterWaitState(t, SMALL_DELAY_MS);
763		assertEquals(1, q.size());
764	<	assertEquals(SIZE, (int) q.poll());
765	<	assertTrue(q.isEmpty());
764	>	assertSame(five, q.poll());
765	>	checkEmpty(q);
766		awaitTermination(t, MEDIUM_DELAY_MS);
767		}
768
#	Line 879 | Line 775 | public class LinkedTransferQueueTest ext
775
776		Thread first = newStartedThread(new CheckedRunnable() {
777		public void realRun() throws InterruptedException {
778	<	Integer i = SIZE + 1;
779	<	q.transfer(i);
884	<	assertTrue(!q.contains(i));
778	>	q.transfer(four);
779	>	assertTrue(!q.contains(four));
780		assertEquals(1, q.size());
781		}});
782
783		Thread interruptedThread = newStartedThread(
784		new CheckedInterruptedRunnable() {
785		public void realRun() throws InterruptedException {
786	<	while (q.size() == 0)
786	>	while (q.isEmpty())
787		Thread.yield();
788	<	q.transfer(SIZE);
788	>	q.transfer(five);
789		}});
790
791		while (q.size() < 2)
792		Thread.yield();
793		assertEquals(2, q.size());
794	<	assertEquals(SIZE + 1, (int) q.poll());
794	>	assertSame(four, q.poll());
795		first.join();
796		assertEquals(1, q.size());
797		interruptedThread.interrupt();
798		interruptedThread.join();
799	<	assertEquals(0, q.size());
905	<	assertTrue(q.isEmpty());
799	>	checkEmpty(q);
800		}
801
802		/**
#	Line 919 | Line 813 | public class LinkedTransferQueueTest ext
813		assertSame(three, q.poll());
814		}});
815
816	<	Thread.sleep(SHORT_DELAY_MS);
816	>	while (q.isEmpty())
817	>	Thread.yield();
818	>	assertFalse(q.isEmpty());
819	>	assertEquals(1, q.size());
820		assertTrue(q.offer(three));
821		assertSame(four, q.poll());
822		awaitTermination(t, MEDIUM_DELAY_MS);
#	Line 935 | Line 832 | public class LinkedTransferQueueTest ext
832
833		Thread t = newStartedThread(new CheckedRunnable() {
834		public void realRun() throws InterruptedException {
835	<	q.transfer(SIZE);
835	>	q.transfer(four);
836		checkEmpty(q);
837		}});
838
839	<	Thread.sleep(SHORT_DELAY_MS);
840	<	assertEquals(SIZE, (int) q.take());
839	>	while (q.isEmpty())
840	>	Thread.yield();
841	>	assertFalse(q.isEmpty());
842	>	assertEquals(1, q.size());
843	>	assertSame(four, q.take());
844		checkEmpty(q);
845		awaitTermination(t, MEDIUM_DELAY_MS);
846		}
#	Line 980 | Line 880 | public class LinkedTransferQueueTest ext
880		while (! q.hasWaitingConsumer())
881		Thread.yield();
882		assertTrue(q.hasWaitingConsumer());
883	<	assertTrue(q.isEmpty());
984	<	assertEquals(q.size(), 0);
883	>	checkEmpty(q);
884		assertTrue(q.tryTransfer(hotPotato));
885		}});
886
#	Line 1003 | Line 902 | public class LinkedTransferQueueTest ext
902		while (! q.hasWaitingConsumer())
903		Thread.yield();
904		assertTrue(q.hasWaitingConsumer());
905	<	assertTrue(q.isEmpty());
1007	<	assertEquals(q.size(), 0);
905	>	checkEmpty(q);
906		assertTrue(q.tryTransfer(hotPotato));
907		}});
908
#	Line 1014 | Line 912 | public class LinkedTransferQueueTest ext
912		}
913
914		/**
915	<	* tryTransfer waits the amount given if interrupted, and
1018	<	* throws interrupted exception
915	>	* tryTransfer blocks interruptibly if no takers
916		*/
917		public void testTryTransfer5() throws InterruptedException {
918		final LinkedTransferQueue q = new LinkedTransferQueue();
919	+	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
920	+	assertTrue(q.isEmpty());
921
922	<	Thread toInterrupt = newStartedThread(new CheckedInterruptedRunnable() {
922	>	Thread t = newStartedThread(new CheckedRunnable() {
923		public void realRun() throws InterruptedException {
924	<	q.tryTransfer(new Object(), LONG_DELAY_MS, MILLISECONDS);
924	>	Thread.currentThread().interrupt();
925	>	try {
926	>	q.tryTransfer(new Object(), LONG_DELAY_MS, MILLISECONDS);
927	>	shouldThrow();
928	>	} catch (InterruptedException success) {}
929	>	assertFalse(Thread.interrupted());
930	>
931	>	pleaseInterrupt.countDown();
932	>	try {
933	>	q.tryTransfer(new Object(), LONG_DELAY_MS, MILLISECONDS);
934	>	shouldThrow();
935	>	} catch (InterruptedException success) {}
936	>	assertFalse(Thread.interrupted());
937		}});
938
939	<	Thread.sleep(SMALL_DELAY_MS);
940	<	toInterrupt.interrupt();
941	<	toInterrupt.join();
939	>	await(pleaseInterrupt);
940	>	assertThreadStaysAlive(t);
941	>	t.interrupt();
942	>	awaitTermination(t);
943	>	checkEmpty(q);
944		}
945
946		/**
947	<	* tryTransfer gives up after the timeout and return false
947	>	* tryTransfer gives up after the timeout and returns false
948		*/
949		public void testTryTransfer6() throws InterruptedException {
950		final LinkedTransferQueue q = new LinkedTransferQueue();
#	Line 1040 | Line 953 | public class LinkedTransferQueueTest ext
953		public void realRun() throws InterruptedException {
954		long t0 = System.nanoTime();
955		assertFalse(q.tryTransfer(new Object(),
956	<	SHORT_DELAY_MS, MILLISECONDS));
957	<	assertTrue(millisElapsedSince(t0) >= SHORT_DELAY_MS);
956	>	timeoutMillis(), MILLISECONDS));
957	>	assertTrue(millisElapsedSince(t0) >= timeoutMillis());
958	>	checkEmpty(q);
959		}});
960
961	<	checkEmpty(q);
1048	<	awaitTermination(t, MEDIUM_DELAY_MS);
961	>	awaitTermination(t);
962		checkEmpty(q);
963		}
964
#	Line 1060 | Line 973 | public class LinkedTransferQueueTest ext
973		Thread t = newStartedThread(new CheckedRunnable() {
974		public void realRun() throws InterruptedException {
975		assertTrue(q.tryTransfer(five, MEDIUM_DELAY_MS, MILLISECONDS));
976	<	assertTrue(q.isEmpty());
976	>	checkEmpty(q);
977		}});
978
979	<	Thread.sleep(SHORT_DELAY_MS);
979	>	while (q.size() != 2)
980	>	Thread.yield();
981		assertEquals(2, q.size());
982		assertSame(four, q.poll());
983		assertSame(five, q.poll());
#	Line 1072 | Line 986 | public class LinkedTransferQueueTest ext
986		}
987
988		/**
989	<	* tryTransfer attempts to enqueue into the q and fails returning
990	<	* false not enqueueing and the successive poll is null
989	>	* tryTransfer attempts to enqueue into the queue and fails
990	>	* returning false not enqueueing and the successive poll is null
991		*/
992		public void testTryTransfer8() throws InterruptedException {
993		final LinkedTransferQueue q = new LinkedTransferQueue();
994		assertTrue(q.offer(four));
995		assertEquals(1, q.size());
996	<	assertFalse(q.tryTransfer(five, SHORT_DELAY_MS, MILLISECONDS));
996	>	long t0 = System.nanoTime();
997	>	assertFalse(q.tryTransfer(five, timeoutMillis(), MILLISECONDS));
998	>	assertTrue(millisElapsedSince(t0) >= timeoutMillis());
999		assertEquals(1, q.size());
1000		assertSame(four, q.poll());
1001		assertNull(q.poll());
#	Line 1088 | Line 1004 | public class LinkedTransferQueueTest ext
1004
1005		private LinkedTransferQueue<Integer> populatedQueue(int n) {
1006		LinkedTransferQueue<Integer> q = new LinkedTransferQueue<Integer>();
1007	<	assertTrue(q.isEmpty());
1007	>	checkEmpty(q);
1008		for (int i = 0; i < n; i++) {
1009		assertEquals(i, q.size());
1010		assertTrue(q.offer(i));
#	Line 1097 | Line 1013 | public class LinkedTransferQueueTest ext
1013		assertFalse(q.isEmpty());
1014		return q;
1015		}
1016	+
1017	+	/**
1018	+	* remove(null), contains(null) always return false
1019	+	*/
1020	+	public void testNeverContainsNull() {
1021	+	Collection<?>[] qs = {
1022	+	new LinkedTransferQueue<Object>(),
1023	+	populatedQueue(2),
1024	+	};
1025	+
1026	+	for (Collection<?> q : qs) {
1027	+	assertFalse(q.contains(null));
1028	+	assertFalse(q.remove(null));
1029	+	}
1030	+	}
1031		}

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