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

Comparing jsr166/src/test/tck/LinkedTransferQueueTest.java (file contents):
Revision 1.44 by jsr166, Tue Mar 15 19:47:06 2011 UTC vs.
Revision 1.50 by jsr166, Sat Nov 26 05:19:17 2011 UTC

#	Line 5 | Line 5
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 65 | 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];
70	<	new LinkedTransferQueue(Arrays.asList(ints));
69	>	new LinkedTransferQueue(elements);
70		shouldThrow();
71		} catch (NullPointerException success) {}
72		}
#	Line 77 | 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];
82	<	for (int i = 0; i < SIZE - 1; ++i) {
83	<	ints[i] = i;
84	<	}
85	<	new LinkedTransferQueue(Arrays.asList(ints));
84	>	new LinkedTransferQueue(elements);
85		shouldThrow();
86		} catch (NullPointerException success) {}
87		}
#	Line 129 | Line 128 | public class LinkedTransferQueueTest ext
128		}
129
130		/**
132	–	* offer(null) throws NullPointerException
133	–	*/
134	–	public void testOfferNull() {
135	–	try {
136	–	LinkedTransferQueue q = new LinkedTransferQueue();
137	–	q.offer(null);
138	–	shouldThrow();
139	–	} catch (NullPointerException success) {}
140	–	}
141	–
142	–	/**
143	–	* add(null) throws NullPointerException
144	–	*/
145	–	public void testAddNull() {
146	–	try {
147	–	LinkedTransferQueue q = new LinkedTransferQueue();
148	–	q.add(null);
149	–	shouldThrow();
150	–	} catch (NullPointerException success) {}
151	–	}
152	–
153	–	/**
154	–	* addAll(null) throws NullPointerException
155	–	*/
156	–	public void testAddAll1() {
157	–	try {
158	–	LinkedTransferQueue q = new LinkedTransferQueue();
159	–	q.addAll(null);
160	–	shouldThrow();
161	–	} catch (NullPointerException success) {}
162	–	}
163	–
164	–	/**
131		* addAll(this) throws IllegalArgumentException
132		*/
133		public void testAddAllSelf() {
#	Line 173 | Line 139 | public class LinkedTransferQueueTest ext
139		}
140
141		/**
176	–	* addAll of a collection with null elements throws NullPointerException
177	–	*/
178	–	public void testAddAll2() {
179	–	try {
180	–	LinkedTransferQueue q = new LinkedTransferQueue();
181	–	Integer[] ints = new Integer[SIZE];
182	–	q.addAll(Arrays.asList(ints));
183	–	shouldThrow();
184	–	} catch (NullPointerException success) {}
185	–	}
186	–
187	–	/**
142		* addAll of a collection with any null elements throws
143		* NullPointerException after possibly adding some elements
144		*/
#	Line 218 | Line 172 | public class LinkedTransferQueueTest ext
172		}
173
174		/**
221	–	* put(null) throws NullPointerException
222	–	*/
223	–	public void testPutNull() throws InterruptedException {
224	–	try {
225	–	LinkedTransferQueue q = new LinkedTransferQueue();
226	–	q.put(null);
227	–	shouldThrow();
228	–	} catch (NullPointerException success) {}
229	–	}
230	–
231	–	/**
175		* all elements successfully put are contained
176		*/
177		public void testPut() {
#	Line 254 | 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);
275	<	checkEmpty(q);
226	>	awaitTermination(t);
227		}
228
229		/**
#	Line 305 | 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 417 | Line 368 | public class LinkedTransferQueueTest ext
368		}
369
370		/**
420	–	* remove(x) removes x and returns true if present
421	–	*/
422	–	public void testRemoveElement() throws InterruptedException {
423	–	LinkedTransferQueue q = populatedQueue(SIZE);
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) {
431	–	assertTrue(q.contains(i));
432	–	assertTrue(q.remove(i));
433	–	assertFalse(q.contains(i));
434	–	assertFalse(q.remove(i+1));
435	–	assertFalse(q.contains(i+1));
436	–	}
437	–	checkEmpty(q);
438	–	}
439	–
440	–	/**
371		* An add following remove(x) succeeds
372		*/
373		public void testRemoveElementAndAdd() throws InterruptedException {
#	Line 553 | Line 483 | public class LinkedTransferQueueTest ext
483		}
484
485		/**
556	–	* toArray(null) throws NullPointerException
557	–	*/
558	–	public void testToArray_NullArg() {
559	–	LinkedTransferQueue q = populatedQueue(SIZE);
560	–	try {
561	–	q.toArray(null);
562	–	shouldThrow();
563	–	} catch (NullPointerException success) {}
564	–	}
565	–
566	–	/**
486		* toArray(incompatible array type) throws ArrayStoreException
487		*/
488		public void testToArray1_BadArg() {
#	Line 646 | 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 655 | Line 574 | public class LinkedTransferQueueTest ext
574		*/
575		public void testOfferInExecutor() {
576		final LinkedTransferQueue q = new LinkedTransferQueue();
577	<	final CountDownLatch threadsStarted = new CountDownLatch(2);
577	>	final CheckedBarrier threadsStarted = new CheckedBarrier(2);
578		ExecutorService executor = Executors.newFixedThreadPool(2);
579
580		executor.execute(new CheckedRunnable() {
581		public void realRun() throws InterruptedException {
663	–	threadsStarted.countDown();
582		threadsStarted.await();
583	<	assertTrue(q.offer(one, MEDIUM_DELAY_MS, MILLISECONDS));
583	>	assertTrue(q.offer(one, LONG_DELAY_MS, MILLISECONDS));
584		}});
585
586		executor.execute(new CheckedRunnable() {
587		public void realRun() throws InterruptedException {
670	–	threadsStarted.countDown();
588		threadsStarted.await();
589		assertSame(one, q.take());
590		checkEmpty(q);
#	Line 681 | Line 598 | public class LinkedTransferQueueTest ext
598		*/
599		public void testPollInExecutor() {
600		final LinkedTransferQueue q = new LinkedTransferQueue();
601	<	final CountDownLatch threadsStarted = new CountDownLatch(2);
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());
690	–	threadsStarted.countDown();
607		threadsStarted.await();
608	<	assertSame(one, q.poll(SMALL_DELAY_MS, MILLISECONDS));
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 {
698	–	threadsStarted.countDown();
614		threadsStarted.await();
615		q.put(one);
616		}});
#	Line 707 | 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);
626	<
712	<	ByteArrayOutputStream bout = new ByteArrayOutputStream(10000);
713	<	ObjectOutputStream out
714	<	= new ObjectOutputStream(new BufferedOutputStream(bout));
715	<	out.writeObject(q);
716	<	out.close();
717	<
718	<	ByteArrayInputStream bin
719	<	= new ByteArrayInputStream(bout.toByteArray());
720	<	ObjectInputStream in
721	<	= new ObjectInputStream(new BufferedInputStream(bin));
722	<	LinkedTransferQueue r = (LinkedTransferQueue) in.readObject();
625	>	Queue x = populatedQueue(SIZE);
626	>	Queue y = serialClone(x);
627
628	<	assertEquals(q.size(), r.size());
629	<	assertEquals(q.toString(), r.toString());
630	<	assertTrue(Arrays.equals(q.toArray(), r.toArray()));
631	<	while (!q.isEmpty()) {
632	<	assertEquals(q.remove(), r.remove());
628	>	assertTrue(x != y);
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	<	}
731	<
732	<	/**
733	<	* drainTo(null) throws NullPointerException
734	<	*/
735	<	public void testDrainToNull() {
736	<	LinkedTransferQueue q = populatedQueue(SIZE);
737	<	try {
738	<	q.drainTo(null);
739	<	shouldThrow();
740	<	} catch (NullPointerException success) {}
741	<	}
742	<
743	<	/**
744	<	* drainTo(this) throws IllegalArgumentException
745	<	*/
746	<	public void testDrainToSelf() {
747	<	LinkedTransferQueue q = populatedQueue(SIZE);
748	<	try {
749	<	q.drainTo(q);
750	<	shouldThrow();
751	<	} catch (IllegalArgumentException success) {}
636	>	assertTrue(y.isEmpty());
637		}
638
639		/**
#	Line 758 | 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);
650		}
#	Line 770 | 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);
662		}
#	Line 797 | Line 682 | public class LinkedTransferQueueTest ext
682		}
683
684		/**
800	–	* drainTo(null, n) throws NullPointerException
801	–	*/
802	–	public void testDrainToNullN() {
803	–	LinkedTransferQueue q = populatedQueue(SIZE);
804	–	try {
805	–	q.drainTo(null, SIZE);
806	–	shouldThrow();
807	–	} catch (NullPointerException success) {}
808	–	}
809	–
810	–	/**
811	–	* drainTo(this, n) throws IllegalArgumentException
812	–	*/
813	–	public void testDrainToSelfN() {
814	–	LinkedTransferQueue q = populatedQueue(SIZE);
815	–	try {
816	–	q.drainTo(q, SIZE);
817	–	shouldThrow();
818	–	} catch (IllegalArgumentException success) {}
819	–	}
820	–
821	–	/**
685		* drainTo(c, n) empties first min(n, size) elements of queue into c
686		*/
687		public void testDrainToN() {
#	Line 846 | Line 709 | public class LinkedTransferQueueTest ext
709		*/
710		public void testWaitingConsumer() throws InterruptedException {
711		final LinkedTransferQueue q = new LinkedTransferQueue();
712	<	assertEquals(q.getWaitingConsumerCount(), 0);
712	>	assertEquals(0, q.getWaitingConsumerCount());
713		assertFalse(q.hasWaitingConsumer());
714		final CountDownLatch threadStarted = new CountDownLatch(1);
715
#	Line 854 | Line 717 | public class LinkedTransferQueueTest ext
717		public void realRun() throws InterruptedException {
718		threadStarted.countDown();
719		assertSame(one, q.poll(LONG_DELAY_MS, MILLISECONDS));
720	<	assertEquals(q.getWaitingConsumerCount(), 0);
720	>	assertEquals(0, q.getWaitingConsumerCount());
721		assertFalse(q.hasWaitingConsumer());
722		}});
723
724		threadStarted.await();
725		waitForThreadToEnterWaitState(t, SMALL_DELAY_MS);
726	<	assertEquals(q.getWaitingConsumerCount(), 1);
726	>	assertEquals(1, q.getWaitingConsumerCount());
727		assertTrue(q.hasWaitingConsumer());
728
729		assertTrue(q.offer(one));
730	<	assertEquals(q.getWaitingConsumerCount(), 0);
730	>	assertEquals(0, q.getWaitingConsumerCount());
731		assertFalse(q.hasWaitingConsumer());
732
733		awaitTermination(t, MEDIUM_DELAY_MS);
#	Line 1051 | Line 914 | public class LinkedTransferQueueTest ext
914		}
915
916		/**
917	<	* tryTransfer waits the amount given, and throws
1055	<	* InterruptedException when interrupted.
917	>	* tryTransfer blocks interruptibly if no takers
918		*/
919		public void testTryTransfer5() throws InterruptedException {
920		final LinkedTransferQueue q = new LinkedTransferQueue();
921	<	final CountDownLatch threadStarted = new CountDownLatch(1);
921	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
922		assertTrue(q.isEmpty());
923
924		Thread t = newStartedThread(new CheckedRunnable() {
925		public void realRun() throws InterruptedException {
926	<	long t0 = System.nanoTime();
1065	<	threadStarted.countDown();
926	>	Thread.currentThread().interrupt();
927		try {
928		q.tryTransfer(new Object(), LONG_DELAY_MS, MILLISECONDS);
929		shouldThrow();
930		} catch (InterruptedException success) {}
931	<	assertTrue(millisElapsedSince(t0) >= SHORT_DELAY_MS);
932	<	assertTrue(millisElapsedSince(t0) < MEDIUM_DELAY_MS);
931	>	assertFalse(Thread.interrupted());
932	>
933	>	pleaseInterrupt.countDown();
934	>	try {
935	>	q.tryTransfer(new Object(), LONG_DELAY_MS, MILLISECONDS);
936	>	shouldThrow();
937	>	} catch (InterruptedException success) {}
938	>	assertFalse(Thread.interrupted());
939		}});
940
941	<	threadStarted.await();
942	<	while (q.isEmpty())
1076	<	Thread.yield();
1077	<	Thread.sleep(SHORT_DELAY_MS);
941	>	await(pleaseInterrupt);
942	>	assertThreadStaysAlive(t);
943		t.interrupt();
944	<	awaitTermination(t, MEDIUM_DELAY_MS);
944	>	awaitTermination(t);
945		checkEmpty(q);
946		}
947
#	Line 1090 | Line 955 | public class LinkedTransferQueueTest ext
955		public void realRun() throws InterruptedException {
956		long t0 = System.nanoTime();
957		assertFalse(q.tryTransfer(new Object(),
958	<	SHORT_DELAY_MS, MILLISECONDS));
959	<	assertTrue(millisElapsedSince(t0) >= SHORT_DELAY_MS);
958	>	timeoutMillis(), MILLISECONDS));
959	>	assertTrue(millisElapsedSince(t0) >= timeoutMillis());
960		checkEmpty(q);
961		}});
962
963	<	awaitTermination(t, MEDIUM_DELAY_MS);
963	>	awaitTermination(t);
964		checkEmpty(q);
965		}
966
#	Line 1131 | Line 996 | public class LinkedTransferQueueTest ext
996		assertTrue(q.offer(four));
997		assertEquals(1, q.size());
998		long t0 = System.nanoTime();
999	<	assertFalse(q.tryTransfer(five, SHORT_DELAY_MS, MILLISECONDS));
1000	<	assertTrue(millisElapsedSince(t0) >= SHORT_DELAY_MS);
999	>	assertFalse(q.tryTransfer(five, timeoutMillis(), MILLISECONDS));
1000	>	assertTrue(millisElapsedSince(t0) >= timeoutMillis());
1001		assertEquals(1, q.size());
1002		assertSame(four, q.poll());
1003		assertNull(q.poll());

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