ViewVC Help

View File | Revision Log | Show Annotations | Download File | Root Listing

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

Comparing jsr166/src/test/tck/LinkedTransferQueueTest.java (file contents):
Revision 1.22 by jsr166, Tue Dec 1 06:03:49 2009 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 junit.framework.Test;
22	<	import junit.framework.TestSuite;
22	>	import static java.util.concurrent.TimeUnit.NANOSECONDS;
23
24		@SuppressWarnings({"unchecked", "rawtypes"})
25		public class LinkedTransferQueueTest extends JSR166TestCase {
26
27	+	public static class Generic extends BlockingQueueTest {
28	+	protected BlockingQueue emptyCollection() {
29	+	return new LinkedTransferQueue();
30	+	}
31	+	}
32	+
33		public static void main(String[] args) {
34		junit.textui.TestRunner.run(suite());
35		}
36
37		public static Test suite() {
38	<	return new TestSuite(LinkedTransferQueueTest.class);
39	<	}
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) {}
38	>	return newTestSuite(LinkedTransferQueueTest.class,
39	>	new Generic().testSuite());
40		}
41
42		/**
#	Line 80 | 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];
85	<	new LinkedTransferQueue(Arrays.asList(ints));
69	>	new LinkedTransferQueue(elements);
70		shouldThrow();
71		} catch (NullPointerException success) {}
72		}
#	Line 92 | 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];
97	<	for (int i = 0; i < SIZE - 1; ++i) {
98	<	ints[i] = i;
99	<	}
100	<	new LinkedTransferQueue(Arrays.asList(ints));
84	>	new LinkedTransferQueue(elements);
85		shouldThrow();
86		} catch (NullPointerException success) {}
87		}
#	Line 144 | Line 128 | public class LinkedTransferQueueTest ext
128		}
129
130		/**
147	–	* offer(null) throws NullPointerException
148	–	*/
149	–	public void testOfferNull() {
150	–	try {
151	–	LinkedTransferQueue q = new LinkedTransferQueue();
152	–	q.offer(null);
153	–	shouldThrow();
154	–	} catch (NullPointerException success) {}
155	–	}
156	–
157	–	/**
158	–	* add(null) throws NullPointerException
159	–	*/
160	–	public void testAddNull() {
161	–	try {
162	–	LinkedTransferQueue q = new LinkedTransferQueue();
163	–	q.add(null);
164	–	shouldThrow();
165	–	} catch (NullPointerException success) {}
166	–	}
167	–
168	–	/**
169	–	* addAll(null) throws NullPointerException
170	–	*/
171	–	public void testAddAll1() {
172	–	try {
173	–	LinkedTransferQueue q = new LinkedTransferQueue();
174	–	q.addAll(null);
175	–	shouldThrow();
176	–	} catch (NullPointerException success) {}
177	–	}
178	–
179	–	/**
131		* addAll(this) throws IllegalArgumentException
132		*/
133		public void testAddAllSelf() {
#	Line 188 | Line 139 | public class LinkedTransferQueueTest ext
139		}
140
141		/**
191	–	* addAll of a collection with null elements throws NullPointerException
192	–	*/
193	–	public void testAddAll2() {
194	–	try {
195	–	LinkedTransferQueue q = new LinkedTransferQueue();
196	–	Integer[] ints = new Integer[SIZE];
197	–	q.addAll(Arrays.asList(ints));
198	–	shouldThrow();
199	–	} catch (NullPointerException success) {}
200	–	}
201	–
202	–	/**
142		* addAll of a collection with any null elements throws
143		* NullPointerException after possibly adding some elements
144		*/
#	Line 233 | Line 172 | public class LinkedTransferQueueTest ext
172		}
173
174		/**
236	–	* put(null) throws NullPointerException
237	–	*/
238	–	public void testPutNull() throws InterruptedException {
239	–	try {
240	–	LinkedTransferQueue q = new LinkedTransferQueue();
241	–	q.put(null);
242	–	shouldThrow();
243	–	} catch (NullPointerException success) {}
244	–	}
245	–
246	–	/**
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 266 | Line 194 | public class LinkedTransferQueueTest ext
194		}
195
196		/**
197	<	* take blocks interruptibly when empty
270	<	*/
271	<	public void testTakeFromEmpty() throws InterruptedException {
272	<	final LinkedTransferQueue q = new LinkedTransferQueue();
273	<	Thread t = newStartedThread(new CheckedInterruptedRunnable() {
274	<	public void realRun() throws InterruptedException {
275	<	q.take();
276	<	}});
277	<	Thread.sleep(SHORT_DELAY_MS);
278	<	t.interrupt();
279	<	t.join();
280	<	}
281	<
282	<	/**
283	<	* Take removes existing elements until empty, then blocks interruptibly
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	<	t.join();
302	<	checkEmpty(q);
226	>	awaitTermination(t);
227		}
228
229		/**
#	Line 315 | Line 239 | public class LinkedTransferQueueTest ext
239		}
240
241		/**
242	<	* timed pool with zero timeout succeeds when non-empty, else times out
242	>	* timed poll with zero timeout succeeds when non-empty, else times out
243		*/
244		public void testTimedPoll0() throws InterruptedException {
245		LinkedTransferQueue<Integer> q = populatedQueue(SIZE);
#	Line 327 | Line 251 | public class LinkedTransferQueueTest ext
251		}
252
253		/**
254	<	* timed pool with nonzero timeout succeeds when non-empty, else times out
254	>	* timed poll with nonzero timeout succeeds when non-empty, else times out
255		*/
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	<	long millisElapsed = (System.nanoTime() - t0)/(1024 * 1024);
338	<	assertTrue(millisElapsed < 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 346 | 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) {
279		long t0 = System.nanoTime();
280	<	threadAssertEquals(i, (int) q.poll(LONG_DELAY_MS,
281	<	MILLISECONDS));
356	<	long millisElapsed = (System.nanoTime() - t0)/(1024 * 1024);
357	<	assertTrue(millisElapsed < SMALL_DELAY_MS);
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	<	t.join();
296	>	awaitTermination(t, MEDIUM_DELAY_MS);
297		checkEmpty(q);
298		}
299
300		/**
301	<	* timed poll before a delayed offer fails; after offer succeeds;
302	<	* on interruption throws
301	>	* timed poll after thread interrupted throws InterruptedException
302	>	* instead of returning timeout status
303		*/
304	<	public void testTimedPollWithOffer() throws InterruptedException {
305	<	final LinkedTransferQueue q = new LinkedTransferQueue();
306	<	Thread t = new Thread(new CheckedRunnable() {
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	<	assertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS));
309	<	assertSame(zero, q.poll(LONG_DELAY_MS, MILLISECONDS));
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(LONG_DELAY_MS, MILLISECONDS);
315	>	q.poll(MEDIUM_DELAY_MS, MILLISECONDS);
316		shouldThrow();
317		} catch (InterruptedException success) {}
318		}});
319
320	<	t.start();
321	<	Thread.sleep(SMALL_DELAY_MS);
389	<	assertTrue(q.offer(zero, SHORT_DELAY_MS, MILLISECONDS));
390	<	t.interrupt();
391	<	t.join();
320	>	awaitTermination(t, MEDIUM_DELAY_MS);
321	>	checkEmpty(q);
322		}
323
324		/**
#	Line 438 | Line 368 | public class LinkedTransferQueueTest ext
368		}
369
370		/**
441	–	* remove(x) removes x and returns true if present
442	–	*/
443	–	public void testRemoveElement() throws InterruptedException {
444	–	LinkedTransferQueue q = populatedQueue(SIZE);
445	–	for (int i = 1; i < SIZE; i += 2) {
446	–	assertTrue(q.remove(i));
447	–	}
448	–	for (int i = 0; i < SIZE; i += 2) {
449	–	assertTrue(q.remove(i));
450	–	assertFalse(q.remove(i + 1));
451	–	}
452	–	checkEmpty(q);
453	–	}
454	–
455	–	/**
371		* An add following remove(x) succeeds
372		*/
373		public void testRemoveElementAndAdd() throws InterruptedException {
#	Line 462 | Line 377 | public class LinkedTransferQueueTest ext
377		assertTrue(q.remove(one));
378		assertTrue(q.remove(two));
379		assertTrue(q.add(three));
380	<	assertTrue(q.take() == three);
380	>	assertSame(q.take(), three);
381		}
382
383		/**
#	Line 544 | 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
571	<	*/
572	<	public void testToArray_BadArg() {
573	<	LinkedTransferQueue q = populatedQueue(SIZE);
574	<	try {
575	<	Object o[] = q.toArray(null);
576	<	shouldThrow();
577	<	} catch (NullPointerException success) {}
578	<	}
579	<
580	<	/**
581	<	* 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 615 | Line 520 | public class LinkedTransferQueueTest ext
520		it.remove();
521
522		it = q.iterator();
523	<	assertEquals(it.next(), one);
524	<	assertEquals(it.next(), three);
523	>	assertSame(it.next(), one);
524	>	assertSame(it.next(), three);
525		assertFalse(it.hasNext());
526		}
527
#	Line 660 | 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 669 | Line 574 | public class LinkedTransferQueueTest ext
574		*/
575		public void testOfferInExecutor() {
576		final LinkedTransferQueue q = new LinkedTransferQueue();
577	<	q.add(one);
673	<	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	<	threadAssertTrue(q.offer(three, MEDIUM_DELAY_MS,
583	<	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);
589	<	threadAssertEquals(one, q.take());
588	>	threadsStarted.await();
589	>	assertSame(one, q.take());
590	>	checkEmpty(q);
591		}});
592
593		joinPool(executor);
#	Line 693 | 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 715 | 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
727	<	= new ByteArrayInputStream(bout.toByteArray());
728	<	ObjectInputStream in
729	<	= new ObjectInputStream(new BufferedInputStream(bin));
730	<	LinkedTransferQueue r = (LinkedTransferQueue) in.readObject();
731	<
732	<	assertEquals(q.size(), r.size());
733	<	while (!q.isEmpty()) {
734	<	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	<	}
737	<
738	<	/**
739	<	* drainTo(null) throws NullPointerException
740	<	*/
741	<	public void testDrainToNull() {
742	<	LinkedTransferQueue q = populatedQueue(SIZE);
743	<	try {
744	<	q.drainTo(null);
745	<	shouldThrow();
746	<	} catch (NullPointerException success) {}
747	<	}
748	<
749	<	/**
750	<	* drainTo(this) throws IllegalArgumentException
751	<	*/
752	<	public void testDrainToSelf() {
753	<	LinkedTransferQueue q = populatedQueue(SIZE);
754	<	try {
755	<	q.drainTo(q);
756	<	shouldThrow();
757	<	} catch (IllegalArgumentException success) {}
636	>	assertTrue(y.isEmpty());
637		}
638
639		/**
#	Line 764 | 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 776 | 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 795 | 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);
679	<	}
801	<	t.join();
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		/**
684	<	* drainTo(null, n) throws NullPointerException
807	<	*/
808	<	public void testDrainToNullN() {
809	<	LinkedTransferQueue q = populatedQueue(SIZE);
810	<	try {
811	<	q.drainTo(null, SIZE);
812	<	shouldThrow();
813	<	} catch (NullPointerException success) {}
814	<	}
815	<
816	<	/**
817	<	* drainTo(this, n) throws IllegalArgumentException
818	<	*/
819	<	public void testDrainToSelfN() {
820	<	LinkedTransferQueue q = populatedQueue(SIZE);
821	<	try {
822	<	q.drainTo(q, SIZE);
823	<	shouldThrow();
824	<	} catch (IllegalArgumentException success) {}
825	<	}
826	<
827	<	/**
828	<	* drainTo(c, n) empties first max {n, size} elements of queue into c
684	>	* drainTo(c, n) empties first min(n, size) elements of queue into c
685		*/
686		public void testDrainToN() {
687		LinkedTransferQueue q = new LinkedTransferQueue();
#	Line 836 | 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);
843	<	}
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 852 | 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);
863	<	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());
865	–	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	<	t.join();
730	>
731	>	awaitTermination(t, MEDIUM_DELAY_MS);
732		}
733
734		/**
#	Line 889 | 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	<	threadAssertTrue(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());
766	<	t.join();
764	>	assertSame(five, q.poll());
765	>	checkEmpty(q);
766	>	awaitTermination(t, MEDIUM_DELAY_MS);
767		}
768
769		/**
#	Line 912 | 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);
780	<	threadAssertTrue(!q.contains(i));
918	<	threadAssertEquals(1, q.size());
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());
938	<	assertTrue(q.isEmpty());
799	>	checkEmpty(q);
800		}
801
802		/**
#	Line 948 | Line 809 | public class LinkedTransferQueueTest ext
809		Thread t = newStartedThread(new CheckedRunnable() {
810		public void realRun() throws InterruptedException {
811		q.transfer(four);
812	<	threadAssertFalse(q.contains(four));
813	<	threadAssertEquals(three, q.poll());
812	>	assertFalse(q.contains(four));
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	<	assertEquals(four, q.poll());
822	<	t.join();
821	>	assertSame(four, q.poll());
822	>	awaitTermination(t, MEDIUM_DELAY_MS);
823		}
824
825		/**
#	Line 968 | 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	<	t.join();
845	>	awaitTermination(t, MEDIUM_DELAY_MS);
846		}
847
848		/**
#	Line 1012 | Line 879 | public class LinkedTransferQueueTest ext
879		public void realRun() {
880		while (! q.hasWaitingConsumer())
881		Thread.yield();
882	<	threadAssertTrue(q.hasWaitingConsumer());
883	<	threadAssertTrue(q.isEmpty());
884	<	threadAssertTrue(q.size() == 0);
1018	<	threadAssertTrue(q.tryTransfer(hotPotato));
882	>	assertTrue(q.hasWaitingConsumer());
883	>	checkEmpty(q);
884	>	assertTrue(q.tryTransfer(hotPotato));
885		}});
886
887	<	assertTrue(q.poll(MEDIUM_DELAY_MS, MILLISECONDS) == hotPotato);
887	>	assertSame(hotPotato, q.poll(MEDIUM_DELAY_MS, MILLISECONDS));
888		checkEmpty(q);
889	<	t.join();
889	>	awaitTermination(t, MEDIUM_DELAY_MS);
890		}
891
892		/**
#	Line 1035 | Line 901 | public class LinkedTransferQueueTest ext
901		public void realRun() {
902		while (! q.hasWaitingConsumer())
903		Thread.yield();
904	<	threadAssertTrue(q.hasWaitingConsumer());
905	<	threadAssertTrue(q.isEmpty());
906	<	threadAssertTrue(q.size() == 0);
1041	<	threadAssertTrue(q.tryTransfer(hotPotato));
904	>	assertTrue(q.hasWaitingConsumer());
905	>	checkEmpty(q);
906	>	assertTrue(q.tryTransfer(hotPotato));
907		}});
908
909	<	assertTrue(q.take() == hotPotato);
909	>	assertSame(q.take(), hotPotato);
910		checkEmpty(q);
911	<	t.join();
911	>	awaitTermination(t, MEDIUM_DELAY_MS);
912		}
913
914		/**
915	<	* tryTransfer waits the amount given if interrupted, and
1051	<	* 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();
951
952		Thread t = newStartedThread(new CheckedRunnable() {
953		public void realRun() throws InterruptedException {
954	<	threadAssertFalse
955	<	(q.tryTransfer(new Object(),
956	<	SHORT_DELAY_MS, MILLISECONDS));
954	>	long t0 = System.nanoTime();
955	>	assertFalse(q.tryTransfer(new Object(),
956	>	timeoutMillis(), MILLISECONDS));
957	>	assertTrue(millisElapsedSince(t0) >= timeoutMillis());
958	>	checkEmpty(q);
959		}});
960
961	<	Thread.sleep(SMALL_DELAY_MS);
961	>	awaitTermination(t);
962		checkEmpty(q);
1081	–	t.join();
963		}
964
965		/**
#	Line 1091 | Line 972 | public class LinkedTransferQueueTest ext
972
973		Thread t = newStartedThread(new CheckedRunnable() {
974		public void realRun() throws InterruptedException {
975	<	threadAssertTrue(q.tryTransfer(five,
976	<	MEDIUM_DELAY_MS, MILLISECONDS));
1096	<	threadAssertTrue(q.isEmpty());
975	>	assertTrue(q.tryTransfer(five, MEDIUM_DELAY_MS, MILLISECONDS));
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	<	assertEquals(four, q.poll());
983	<	assertEquals(five, q.poll());
982	>	assertSame(four, q.poll());
983	>	assertSame(five, q.poll());
984		checkEmpty(q);
985	<	t.join();
985	>	awaitTermination(t, MEDIUM_DELAY_MS);
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	<	assertEquals(four, q.poll());
1000	>	assertSame(four, q.poll());
1001		assertNull(q.poll());
1002		checkEmpty(q);
1003		}
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 1130 | 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		}

Diff Legend

–	Removed lines
+	Added lines
<	Changed lines
>	Changed lines