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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 1.44 by jsr166, Tue Mar 15 19:47:06 2011 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
#	Line 40 | Line 40 | public class LinkedTransferQueueTest ext
40		new Generic().testSuite());
41		}
42
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	–
43		/**
44		* Constructor builds new queue with size being zero and empty
45		* being true
#	Line 277 | Line 254 | public class LinkedTransferQueueTest ext
254		* take removes existing elements until empty, then blocks interruptibly
255		*/
256		public void testBlockingTake() throws InterruptedException {
257	<	final LinkedTransferQueue<Integer> q = populatedQueue(SIZE);
258	<	Thread t = new Thread(new CheckedRunnable() {
257	>	final BlockingQueue<Integer> q = populatedQueue(SIZE);
258	>	final CountDownLatch aboutToWait = new CountDownLatch(1);
259	>	Thread t = newStartedThread(new CheckedRunnable() {
260		public void realRun() throws InterruptedException {
261		for (int i = 0; i < SIZE; ++i) {
262		assertEquals(i, (int) q.take());
263		}
264	+	aboutToWait.countDown();
265		try {
266		q.take();
267		shouldThrow();
268		} catch (InterruptedException success) {}
269		}});
270
271	<	t.start();
272	<	Thread.sleep(SHORT_DELAY_MS);
271	>	aboutToWait.await();
272	>	waitForThreadToEnterWaitState(t, SMALL_DELAY_MS);
273		t.interrupt();
274		awaitTermination(t, MEDIUM_DELAY_MS);
275		checkEmpty(q);
#	Line 327 | Line 306 | public class LinkedTransferQueueTest ext
306		LinkedTransferQueue<Integer> q = populatedQueue(SIZE);
307		for (int i = 0; i < SIZE; ++i) {
308		long t0 = System.nanoTime();
309	<	assertEquals(i, (int) q.poll(LONG_DELAY_MS, MILLISECONDS));
309	>	assertEquals(i, (int) q.poll(SMALL_DELAY_MS, MILLISECONDS));
310		assertTrue(millisElapsedSince(t0) < SMALL_DELAY_MS);
311		}
312	+	long t0 = System.nanoTime();
313		assertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS));
314	+	assertTrue(millisElapsedSince(t0) >= SHORT_DELAY_MS);
315		checkEmpty(q);
316		}
317
#	Line 339 | Line 320 | public class LinkedTransferQueueTest ext
320		* returning timeout status
321		*/
322		public void testInterruptedTimedPoll() throws InterruptedException {
323	<	final LinkedTransferQueue<Integer> q = populatedQueue(SIZE);
323	>	final BlockingQueue<Integer> q = populatedQueue(SIZE);
324	>	final CountDownLatch aboutToWait = new CountDownLatch(1);
325		Thread t = newStartedThread(new CheckedRunnable() {
326		public void realRun() throws InterruptedException {
327		for (int i = 0; i < SIZE; ++i) {
#	Line 347 | Line 329 | public class LinkedTransferQueueTest ext
329		assertEquals(i, (int) q.poll(LONG_DELAY_MS, MILLISECONDS));
330		assertTrue(millisElapsedSince(t0) < SMALL_DELAY_MS);
331		}
332	+	long t0 = System.nanoTime();
333	+	aboutToWait.countDown();
334		try {
335	<	q.poll(LONG_DELAY_MS, MILLISECONDS);
335	>	q.poll(MEDIUM_DELAY_MS, MILLISECONDS);
336		shouldThrow();
337	<	} catch (InterruptedException success) {}
337	>	} catch (InterruptedException success) {
338	>	assertTrue(millisElapsedSince(t0) < MEDIUM_DELAY_MS);
339	>	}
340		}});
341
342	<	Thread.sleep(SMALL_DELAY_MS);
342	>	aboutToWait.await();
343	>	waitForThreadToEnterWaitState(t, SMALL_DELAY_MS);
344		t.interrupt();
345		awaitTermination(t, MEDIUM_DELAY_MS);
346		checkEmpty(q);
347		}
348
349		/**
350	+	* timed poll after thread interrupted throws InterruptedException
351	+	* instead of returning timeout status
352	+	*/
353	+	public void testTimedPollAfterInterrupt() throws InterruptedException {
354	+	final BlockingQueue<Integer> q = populatedQueue(SIZE);
355	+	Thread t = newStartedThread(new CheckedRunnable() {
356	+	public void realRun() throws InterruptedException {
357	+	Thread.currentThread().interrupt();
358	+	for (int i = 0; i < SIZE; ++i) {
359	+	long t0 = System.nanoTime();
360	+	assertEquals(i, (int) q.poll(LONG_DELAY_MS, MILLISECONDS));
361	+	assertTrue(millisElapsedSince(t0) < SMALL_DELAY_MS);
362	+	}
363	+	try {
364	+	q.poll(MEDIUM_DELAY_MS, MILLISECONDS);
365	+	shouldThrow();
366	+	} catch (InterruptedException success) {}
367	+	}});
368	+
369	+	awaitTermination(t, MEDIUM_DELAY_MS);
370	+	checkEmpty(q);
371	+	}
372	+
373	+	/**
374		* peek returns next element, or null if empty
375		*/
376		public void testPeek() throws InterruptedException {
#	Line 410 | Line 421 | public class LinkedTransferQueueTest ext
421		*/
422		public void testRemoveElement() throws InterruptedException {
423		LinkedTransferQueue q = populatedQueue(SIZE);
424	<	for (int i = 1; i < SIZE; i += 2) {
424	>	for (int i = 1; i < SIZE; i+=2) {
425	>	assertTrue(q.contains(i));
426		assertTrue(q.remove(i));
427	+	assertFalse(q.contains(i));
428	+	assertTrue(q.contains(i-1));
429		}
430	<	for (int i = 0; i < SIZE; i += 2) {
430	>	for (int i = 0; i < SIZE; i+=2) {
431	>	assertTrue(q.contains(i));
432		assertTrue(q.remove(i));
433	<	assertFalse(q.remove(i + 1));
433	>	assertFalse(q.contains(i));
434	>	assertFalse(q.remove(i+1));
435	>	assertFalse(q.contains(i+1));
436		}
437		checkEmpty(q);
438		}
#	Line 512 | Line 529 | public class LinkedTransferQueueTest ext
529		}
530
531		/**
532	<	* toArray() contains all elements
532	>	* toArray() contains all elements in FIFO order
533		*/
534	<	public void testToArray() throws InterruptedException {
534	>	public void testToArray() {
535		LinkedTransferQueue q = populatedQueue(SIZE);
536		Object[] o = q.toArray();
537		for (int i = 0; i < o.length; i++) {
538	<	assertEquals(o[i], q.take());
538	>	assertSame(o[i], q.poll());
539		}
540		}
541
542		/**
543	<	* toArray(a) contains all elements
543	>	* toArray(a) contains all elements in FIFO order
544		*/
545	<	public void testToArray2() throws InterruptedException {
545	>	public void testToArray2() {
546		LinkedTransferQueue<Integer> q = populatedQueue(SIZE);
547		Integer[] ints = new Integer[SIZE];
548	<	ints = q.toArray(ints);
548	>	Integer[] array = q.toArray(ints);
549	>	assertSame(ints, array);
550		for (int i = 0; i < ints.length; i++) {
551	<	assertEquals(ints[i], q.take());
551	>	assertSame(ints[i], q.poll());
552		}
553		}
554
555		/**
556		* toArray(null) throws NullPointerException
557		*/
558	<	public void testToArray_BadArg() {
558	>	public void testToArray_NullArg() {
559		LinkedTransferQueue q = populatedQueue(SIZE);
560		try {
561	<	Object o[] = q.toArray(null);
561	>	q.toArray(null);
562		shouldThrow();
563		} catch (NullPointerException success) {}
564		}
565
566		/**
567	<	* toArray(incompatible array type) throws CCE
567	>	* toArray(incompatible array type) throws ArrayStoreException
568		*/
569		public void testToArray1_BadArg() {
570		LinkedTransferQueue q = populatedQueue(SIZE);
571		try {
572	<	Object o[] = q.toArray(new String[10]);
572	>	q.toArray(new String[10]);
573		shouldThrow();
574		} catch (ArrayStoreException success) {}
575		}
#	Line 637 | Line 655 | public class LinkedTransferQueueTest ext
655		*/
656		public void testOfferInExecutor() {
657		final LinkedTransferQueue q = new LinkedTransferQueue();
658	<	q.add(one);
641	<	q.add(two);
658	>	final CountDownLatch threadsStarted = new CountDownLatch(2);
659		ExecutorService executor = Executors.newFixedThreadPool(2);
660
661		executor.execute(new CheckedRunnable() {
662	<	public void realRun() {
663	<	assertTrue(q.offer(three, MEDIUM_DELAY_MS, MILLISECONDS));
662	>	public void realRun() throws InterruptedException {
663	>	threadsStarted.countDown();
664	>	threadsStarted.await();
665	>	assertTrue(q.offer(one, MEDIUM_DELAY_MS, MILLISECONDS));
666		}});
667
668		executor.execute(new CheckedRunnable() {
669		public void realRun() throws InterruptedException {
670	<	Thread.sleep(SMALL_DELAY_MS);
670	>	threadsStarted.countDown();
671	>	threadsStarted.await();
672		assertSame(one, q.take());
673	+	checkEmpty(q);
674		}});
675
676		joinPool(executor);
#	Line 660 | Line 681 | public class LinkedTransferQueueTest ext
681		*/
682		public void testPollInExecutor() {
683		final LinkedTransferQueue q = new LinkedTransferQueue();
684	+	final CountDownLatch threadsStarted = new CountDownLatch(2);
685		ExecutorService executor = Executors.newFixedThreadPool(2);
686
687		executor.execute(new CheckedRunnable() {
688		public void realRun() throws InterruptedException {
689		assertNull(q.poll());
690	<	assertSame(one, q.poll(MEDIUM_DELAY_MS, MILLISECONDS));
691	<	assertTrue(q.isEmpty());
690	>	threadsStarted.countDown();
691	>	threadsStarted.await();
692	>	assertSame(one, q.poll(SMALL_DELAY_MS, MILLISECONDS));
693	>	checkEmpty(q);
694		}});
695
696		executor.execute(new CheckedRunnable() {
697		public void realRun() throws InterruptedException {
698	<	Thread.sleep(SMALL_DELAY_MS);
698	>	threadsStarted.countDown();
699	>	threadsStarted.await();
700		q.put(one);
701		}});
702
#	Line 697 | Line 722 | public class LinkedTransferQueueTest ext
722		LinkedTransferQueue r = (LinkedTransferQueue) in.readObject();
723
724		assertEquals(q.size(), r.size());
725	+	assertEquals(q.toString(), r.toString());
726	+	assertTrue(Arrays.equals(q.toArray(), r.toArray()));
727		while (!q.isEmpty()) {
728		assertEquals(q.remove(), r.remove());
729		}
#	Line 821 | Line 848 | public class LinkedTransferQueueTest ext
848		final LinkedTransferQueue q = new LinkedTransferQueue();
849		assertEquals(q.getWaitingConsumerCount(), 0);
850		assertFalse(q.hasWaitingConsumer());
851	+	final CountDownLatch threadStarted = new CountDownLatch(1);
852
853		Thread t = newStartedThread(new CheckedRunnable() {
854		public void realRun() throws InterruptedException {
855	<	Thread.sleep(SMALL_DELAY_MS);
856	<	assertTrue(q.hasWaitingConsumer());
829	<	assertEquals(q.getWaitingConsumerCount(), 1);
830	<	assertTrue(q.offer(one));
831	<	assertFalse(q.hasWaitingConsumer());
855	>	threadStarted.countDown();
856	>	assertSame(one, q.poll(LONG_DELAY_MS, MILLISECONDS));
857		assertEquals(q.getWaitingConsumerCount(), 0);
858	+	assertFalse(q.hasWaitingConsumer());
859		}});
860
861	<	assertSame(one, q.poll(LONG_DELAY_MS, MILLISECONDS));
861	>	threadStarted.await();
862	>	waitForThreadToEnterWaitState(t, SMALL_DELAY_MS);
863	>	assertEquals(q.getWaitingConsumerCount(), 1);
864	>	assertTrue(q.hasWaitingConsumer());
865	>
866	>	assertTrue(q.offer(one));
867		assertEquals(q.getWaitingConsumerCount(), 0);
868		assertFalse(q.hasWaitingConsumer());
869	+
870		awaitTermination(t, MEDIUM_DELAY_MS);
871		}
872
#	Line 856 | Line 888 | public class LinkedTransferQueueTest ext
888		public void testTransfer2() throws InterruptedException {
889		final LinkedTransferQueue<Integer> q
890		= new LinkedTransferQueue<Integer>();
891	+	final CountDownLatch threadStarted = new CountDownLatch(1);
892
893		Thread t = newStartedThread(new CheckedRunnable() {
894		public void realRun() throws InterruptedException {
895	<	q.transfer(SIZE);
896	<	assertTrue(q.isEmpty());
895	>	threadStarted.countDown();
896	>	q.transfer(five);
897	>	checkEmpty(q);
898		}});
899
900	<	Thread.sleep(SHORT_DELAY_MS);
900	>	threadStarted.await();
901	>	waitForThreadToEnterWaitState(t, SMALL_DELAY_MS);
902		assertEquals(1, q.size());
903	<	assertEquals(SIZE, (int) q.poll());
904	<	assertTrue(q.isEmpty());
903	>	assertSame(five, q.poll());
904	>	checkEmpty(q);
905		awaitTermination(t, MEDIUM_DELAY_MS);
906		}
907
#	Line 879 | Line 914 | public class LinkedTransferQueueTest ext
914
915		Thread first = newStartedThread(new CheckedRunnable() {
916		public void realRun() throws InterruptedException {
917	<	Integer i = SIZE + 1;
918	<	q.transfer(i);
884	<	assertTrue(!q.contains(i));
917	>	q.transfer(four);
918	>	assertTrue(!q.contains(four));
919		assertEquals(1, q.size());
920		}});
921
922		Thread interruptedThread = newStartedThread(
923		new CheckedInterruptedRunnable() {
924		public void realRun() throws InterruptedException {
925	<	while (q.size() == 0)
925	>	while (q.isEmpty())
926		Thread.yield();
927	<	q.transfer(SIZE);
927	>	q.transfer(five);
928		}});
929
930		while (q.size() < 2)
931		Thread.yield();
932		assertEquals(2, q.size());
933	<	assertEquals(SIZE + 1, (int) q.poll());
933	>	assertSame(four, q.poll());
934		first.join();
935		assertEquals(1, q.size());
936		interruptedThread.interrupt();
937		interruptedThread.join();
938	<	assertEquals(0, q.size());
905	<	assertTrue(q.isEmpty());
938	>	checkEmpty(q);
939		}
940
941		/**
#	Line 919 | Line 952 | public class LinkedTransferQueueTest ext
952		assertSame(three, q.poll());
953		}});
954
955	<	Thread.sleep(SHORT_DELAY_MS);
955	>	while (q.isEmpty())
956	>	Thread.yield();
957	>	assertFalse(q.isEmpty());
958	>	assertEquals(1, q.size());
959		assertTrue(q.offer(three));
960		assertSame(four, q.poll());
961		awaitTermination(t, MEDIUM_DELAY_MS);
#	Line 935 | Line 971 | public class LinkedTransferQueueTest ext
971
972		Thread t = newStartedThread(new CheckedRunnable() {
973		public void realRun() throws InterruptedException {
974	<	q.transfer(SIZE);
974	>	q.transfer(four);
975		checkEmpty(q);
976		}});
977
978	<	Thread.sleep(SHORT_DELAY_MS);
979	<	assertEquals(SIZE, (int) q.take());
978	>	while (q.isEmpty())
979	>	Thread.yield();
980	>	assertFalse(q.isEmpty());
981	>	assertEquals(1, q.size());
982	>	assertSame(four, q.take());
983		checkEmpty(q);
984		awaitTermination(t, MEDIUM_DELAY_MS);
985		}
#	Line 980 | Line 1019 | public class LinkedTransferQueueTest ext
1019		while (! q.hasWaitingConsumer())
1020		Thread.yield();
1021		assertTrue(q.hasWaitingConsumer());
1022	<	assertTrue(q.isEmpty());
984	<	assertEquals(q.size(), 0);
1022	>	checkEmpty(q);
1023		assertTrue(q.tryTransfer(hotPotato));
1024		}});
1025
#	Line 1003 | Line 1041 | public class LinkedTransferQueueTest ext
1041		while (! q.hasWaitingConsumer())
1042		Thread.yield();
1043		assertTrue(q.hasWaitingConsumer());
1044	<	assertTrue(q.isEmpty());
1007	<	assertEquals(q.size(), 0);
1044	>	checkEmpty(q);
1045		assertTrue(q.tryTransfer(hotPotato));
1046		}});
1047
#	Line 1014 | Line 1051 | public class LinkedTransferQueueTest ext
1051		}
1052
1053		/**
1054	<	* tryTransfer waits the amount given if interrupted, and
1055	<	* throws interrupted exception
1054	>	* tryTransfer waits the amount given, and throws
1055	>	* InterruptedException when interrupted.
1056		*/
1057		public void testTryTransfer5() throws InterruptedException {
1058		final LinkedTransferQueue q = new LinkedTransferQueue();
1059	+	final CountDownLatch threadStarted = new CountDownLatch(1);
1060	+	assertTrue(q.isEmpty());
1061
1062	<	Thread toInterrupt = newStartedThread(new CheckedInterruptedRunnable() {
1062	>	Thread t = newStartedThread(new CheckedRunnable() {
1063		public void realRun() throws InterruptedException {
1064	<	q.tryTransfer(new Object(), LONG_DELAY_MS, MILLISECONDS);
1064	>	long t0 = System.nanoTime();
1065	>	threadStarted.countDown();
1066	>	try {
1067	>	q.tryTransfer(new Object(), LONG_DELAY_MS, MILLISECONDS);
1068	>	shouldThrow();
1069	>	} catch (InterruptedException success) {}
1070	>	assertTrue(millisElapsedSince(t0) >= SHORT_DELAY_MS);
1071	>	assertTrue(millisElapsedSince(t0) < MEDIUM_DELAY_MS);
1072		}});
1073
1074	<	Thread.sleep(SMALL_DELAY_MS);
1075	<	toInterrupt.interrupt();
1076	<	toInterrupt.join();
1074	>	threadStarted.await();
1075	>	while (q.isEmpty())
1076	>	Thread.yield();
1077	>	Thread.sleep(SHORT_DELAY_MS);
1078	>	t.interrupt();
1079	>	awaitTermination(t, MEDIUM_DELAY_MS);
1080	>	checkEmpty(q);
1081		}
1082
1083		/**
1084	<	* tryTransfer gives up after the timeout and return false
1084	>	* tryTransfer gives up after the timeout and returns false
1085		*/
1086		public void testTryTransfer6() throws InterruptedException {
1087		final LinkedTransferQueue q = new LinkedTransferQueue();
#	Line 1042 | Line 1092 | public class LinkedTransferQueueTest ext
1092		assertFalse(q.tryTransfer(new Object(),
1093		SHORT_DELAY_MS, MILLISECONDS));
1094		assertTrue(millisElapsedSince(t0) >= SHORT_DELAY_MS);
1095	+	checkEmpty(q);
1096		}});
1097
1047	–	checkEmpty(q);
1098		awaitTermination(t, MEDIUM_DELAY_MS);
1099		checkEmpty(q);
1100		}
#	Line 1060 | Line 1110 | public class LinkedTransferQueueTest ext
1110		Thread t = newStartedThread(new CheckedRunnable() {
1111		public void realRun() throws InterruptedException {
1112		assertTrue(q.tryTransfer(five, MEDIUM_DELAY_MS, MILLISECONDS));
1113	<	assertTrue(q.isEmpty());
1113	>	checkEmpty(q);
1114		}});
1115
1116	<	Thread.sleep(SHORT_DELAY_MS);
1116	>	while (q.size() != 2)
1117	>	Thread.yield();
1118		assertEquals(2, q.size());
1119		assertSame(four, q.poll());
1120		assertSame(five, q.poll());
#	Line 1072 | Line 1123 | public class LinkedTransferQueueTest ext
1123		}
1124
1125		/**
1126	<	* tryTransfer attempts to enqueue into the q and fails returning
1127	<	* false not enqueueing and the successive poll is null
1126	>	* tryTransfer attempts to enqueue into the queue and fails
1127	>	* returning false not enqueueing and the successive poll is null
1128		*/
1129		public void testTryTransfer8() throws InterruptedException {
1130		final LinkedTransferQueue q = new LinkedTransferQueue();
1131		assertTrue(q.offer(four));
1132		assertEquals(1, q.size());
1133	+	long t0 = System.nanoTime();
1134		assertFalse(q.tryTransfer(five, SHORT_DELAY_MS, MILLISECONDS));
1135	+	assertTrue(millisElapsedSince(t0) >= SHORT_DELAY_MS);
1136		assertEquals(1, q.size());
1137		assertSame(four, q.poll());
1138		assertNull(q.poll());
#	Line 1088 | Line 1141 | public class LinkedTransferQueueTest ext
1141
1142		private LinkedTransferQueue<Integer> populatedQueue(int n) {
1143		LinkedTransferQueue<Integer> q = new LinkedTransferQueue<Integer>();
1144	<	assertTrue(q.isEmpty());
1144	>	checkEmpty(q);
1145		for (int i = 0; i < n; i++) {
1146		assertEquals(i, q.size());
1147		assertTrue(q.offer(i));

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