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

Comparing jsr166/src/test/tck/LinkedTransferQueueTest.java (file contents):
Revision 1.42 by jsr166, Thu Nov 18 20:21:53 2010 UTC vs.
Revision 1.48 by jsr166, Tue May 31 16:16:24 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
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(BlockingQueue q) {
44	–	try {
45	–	assertTrue(q.isEmpty());
46	–	assertEquals(0, q.size());
47	–	assertNull(q.peek());
48	–	assertNull(q.poll());
49	–	assertNull(q.poll(0, MILLISECONDS));
50	–	assertEquals(q.toString(), "[]");
51	–	assertTrue(Arrays.equals(q.toArray(), new Object[0]));
52	–	assertFalse(q.iterator().hasNext());
53	–	try {
54	–	q.element();
55	–	shouldThrow();
56	–	} catch (NoSuchElementException success) {}
57	–	try {
58	–	q.iterator().next();
59	–	shouldThrow();
60	–	} catch (NoSuchElementException success) {}
61	–	try {
62	–	q.remove();
63	–	shouldThrow();
64	–	} catch (NoSuchElementException success) {}
65	–	} catch (InterruptedException ie) {
66	–	threadUnexpectedException(ie);
67	–	}
68	–	}
69	–
42		/**
43		* Constructor builds new queue with size being zero and empty
44		* being true
#	Line 92 | 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];
97	<	new LinkedTransferQueue(Arrays.asList(ints));
69	>	new LinkedTransferQueue(elements);
70		shouldThrow();
71		} catch (NullPointerException success) {}
72		}
#	Line 104 | 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];
109	<	for (int i = 0; i < SIZE - 1; ++i) {
110	<	ints[i] = i;
111	<	}
112	<	new LinkedTransferQueue(Arrays.asList(ints));
84	>	new LinkedTransferQueue(elements);
85		shouldThrow();
86		} catch (NullPointerException success) {}
87		}
#	Line 156 | Line 128 | public class LinkedTransferQueueTest ext
128		}
129
130		/**
159	–	* offer(null) throws NullPointerException
160	–	*/
161	–	public void testOfferNull() {
162	–	try {
163	–	LinkedTransferQueue q = new LinkedTransferQueue();
164	–	q.offer(null);
165	–	shouldThrow();
166	–	} catch (NullPointerException success) {}
167	–	}
168	–
169	–	/**
170	–	* add(null) throws NullPointerException
171	–	*/
172	–	public void testAddNull() {
173	–	try {
174	–	LinkedTransferQueue q = new LinkedTransferQueue();
175	–	q.add(null);
176	–	shouldThrow();
177	–	} catch (NullPointerException success) {}
178	–	}
179	–
180	–	/**
181	–	* addAll(null) throws NullPointerException
182	–	*/
183	–	public void testAddAll1() {
184	–	try {
185	–	LinkedTransferQueue q = new LinkedTransferQueue();
186	–	q.addAll(null);
187	–	shouldThrow();
188	–	} catch (NullPointerException success) {}
189	–	}
190	–
191	–	/**
131		* addAll(this) throws IllegalArgumentException
132		*/
133		public void testAddAllSelf() {
#	Line 200 | Line 139 | public class LinkedTransferQueueTest ext
139		}
140
141		/**
203	–	* addAll of a collection with null elements throws NullPointerException
204	–	*/
205	–	public void testAddAll2() {
206	–	try {
207	–	LinkedTransferQueue q = new LinkedTransferQueue();
208	–	Integer[] ints = new Integer[SIZE];
209	–	q.addAll(Arrays.asList(ints));
210	–	shouldThrow();
211	–	} catch (NullPointerException success) {}
212	–	}
213	–
214	–	/**
142		* addAll of a collection with any null elements throws
143		* NullPointerException after possibly adding some elements
144		*/
#	Line 245 | Line 172 | public class LinkedTransferQueueTest ext
172		}
173
174		/**
248	–	* put(null) throws NullPointerException
249	–	*/
250	–	public void testPutNull() throws InterruptedException {
251	–	try {
252	–	LinkedTransferQueue q = new LinkedTransferQueue();
253	–	q.put(null);
254	–	shouldThrow();
255	–	} catch (NullPointerException success) {}
256	–	}
257	–
258	–	/**
175		* all elements successfully put are contained
176		*/
177		public void testPut() {
#	Line 281 | Line 197 | public class LinkedTransferQueueTest ext
197		* take removes existing elements until empty, then blocks interruptibly
198		*/
199		public void testBlockingTake() throws InterruptedException {
200	<	final BlockingQueue<Integer> q = populatedQueue(SIZE);
201	<	final CountDownLatch aboutToWait = new CountDownLatch(1);
200	>	final BlockingQueue q = populatedQueue(SIZE);
201	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
202		Thread t = newStartedThread(new CheckedRunnable() {
203		public void realRun() throws InterruptedException {
204		for (int i = 0; i < SIZE; ++i) {
205	<	assertEquals(i, (int) q.take());
205	>	assertEquals(i, q.take());
206		}
207	<	aboutToWait.countDown();
207	>
208	>	Thread.currentThread().interrupt();
209	>	try {
210	>	q.take();
211	>	shouldThrow();
212	>	} catch (InterruptedException success) {}
213	>	assertFalse(Thread.interrupted());
214	>
215	>	pleaseInterrupt.countDown();
216		try {
217		q.take();
218		shouldThrow();
219		} catch (InterruptedException success) {}
220	+	assertFalse(Thread.interrupted());
221		}});
222
223	<	aboutToWait.await();
224	<	waitForThreadToEnterWaitState(t, SMALL_DELAY_MS);
223	>	await(pleaseInterrupt);
224	>	assertThreadStaysAlive(t);
225		t.interrupt();
226	<	awaitTermination(t, MEDIUM_DELAY_MS);
302	<	checkEmpty(q);
226	>	awaitTermination(t);
227		}
228
229		/**
#	Line 332 | Line 256 | public class LinkedTransferQueueTest ext
256		public void testTimedPoll() throws InterruptedException {
257		LinkedTransferQueue<Integer> q = populatedQueue(SIZE);
258		for (int i = 0; i < SIZE; ++i) {
259	<	long t0 = System.nanoTime();
260	<	assertEquals(i, (int) q.poll(SMALL_DELAY_MS, MILLISECONDS));
261	<	assertTrue(millisElapsedSince(t0) < SMALL_DELAY_MS);
262	<	}
263	<	long t0 = System.nanoTime();
264	<	assertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS));
265	<	assertTrue(millisElapsedSince(t0) >= SHORT_DELAY_MS);
259	>	long startTime = System.nanoTime();
260	>	assertEquals(i, (int) q.poll(LONG_DELAY_MS, MILLISECONDS));
261	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS);
262	>	}
263	>	long startTime = System.nanoTime();
264	>	assertNull(q.poll(timeoutMillis(), MILLISECONDS));
265	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis());
266		checkEmpty(q);
267		}
268
#	Line 580 | Line 504 | public class LinkedTransferQueueTest ext
504		}
505
506		/**
583	–	* toArray(null) throws NullPointerException
584	–	*/
585	–	public void testToArray_NullArg() {
586	–	LinkedTransferQueue q = populatedQueue(SIZE);
587	–	try {
588	–	q.toArray(null);
589	–	shouldThrow();
590	–	} catch (NullPointerException success) {}
591	–	}
592	–
593	–	/**
507		* toArray(incompatible array type) throws ArrayStoreException
508		*/
509		public void testToArray1_BadArg() {
#	Line 673 | Line 586 | public class LinkedTransferQueueTest ext
586		LinkedTransferQueue q = populatedQueue(SIZE);
587		String s = q.toString();
588		for (int i = 0; i < SIZE; ++i) {
589	<	assertTrue(s.indexOf(String.valueOf(i)) >= 0);
589	>	assertTrue(s.contains(String.valueOf(i)));
590		}
591		}
592
#	Line 682 | Line 595 | public class LinkedTransferQueueTest ext
595		*/
596		public void testOfferInExecutor() {
597		final LinkedTransferQueue q = new LinkedTransferQueue();
598	<	final CountDownLatch threadsStarted = new CountDownLatch(2);
598	>	final CheckedBarrier threadsStarted = new CheckedBarrier(2);
599		ExecutorService executor = Executors.newFixedThreadPool(2);
600
601		executor.execute(new CheckedRunnable() {
602		public void realRun() throws InterruptedException {
690	–	threadsStarted.countDown();
603		threadsStarted.await();
604	<	assertTrue(q.offer(one, MEDIUM_DELAY_MS, MILLISECONDS));
604	>	assertTrue(q.offer(one, LONG_DELAY_MS, MILLISECONDS));
605		}});
606
607		executor.execute(new CheckedRunnable() {
608		public void realRun() throws InterruptedException {
697	–	threadsStarted.countDown();
609		threadsStarted.await();
610		assertSame(one, q.take());
611		checkEmpty(q);
#	Line 708 | Line 619 | public class LinkedTransferQueueTest ext
619		*/
620		public void testPollInExecutor() {
621		final LinkedTransferQueue q = new LinkedTransferQueue();
622	<	final CountDownLatch threadsStarted = new CountDownLatch(2);
622	>	final CheckedBarrier threadsStarted = new CheckedBarrier(2);
623		ExecutorService executor = Executors.newFixedThreadPool(2);
624
625		executor.execute(new CheckedRunnable() {
626		public void realRun() throws InterruptedException {
627		assertNull(q.poll());
717	–	threadsStarted.countDown();
628		threadsStarted.await();
629	<	assertSame(one, q.poll(SMALL_DELAY_MS, MILLISECONDS));
629	>	assertSame(one, q.poll(LONG_DELAY_MS, MILLISECONDS));
630		checkEmpty(q);
631		}});
632
633		executor.execute(new CheckedRunnable() {
634		public void realRun() throws InterruptedException {
725	–	threadsStarted.countDown();
635		threadsStarted.await();
636		q.put(one);
637		}});
#	Line 734 | Line 643 | public class LinkedTransferQueueTest ext
643		* A deserialized serialized queue has same elements in same order
644		*/
645		public void testSerialization() throws Exception {
646	<	LinkedTransferQueue q = populatedQueue(SIZE);
646	>	Queue x = populatedQueue(SIZE);
647	>	Queue y = serialClone(x);
648
649	<	ByteArrayOutputStream bout = new ByteArrayOutputStream(10000);
650	<	ObjectOutputStream out
651	<	= new ObjectOutputStream(new BufferedOutputStream(bout));
652	<	out.writeObject(q);
653	<	out.close();
654	<
655	<	ByteArrayInputStream bin
746	<	= new ByteArrayInputStream(bout.toByteArray());
747	<	ObjectInputStream in
748	<	= new ObjectInputStream(new BufferedInputStream(bin));
749	<	LinkedTransferQueue r = (LinkedTransferQueue) in.readObject();
750	<
751	<	assertEquals(q.size(), r.size());
752	<	assertEquals(q.toString(), r.toString());
753	<	assertTrue(Arrays.equals(q.toArray(), r.toArray()));
754	<	while (!q.isEmpty()) {
755	<	assertEquals(q.remove(), r.remove());
649	>	assertTrue(x != y);
650	>	assertEquals(x.size(), y.size());
651	>	assertEquals(x.toString(), y.toString());
652	>	assertTrue(Arrays.equals(x.toArray(), y.toArray()));
653	>	while (!x.isEmpty()) {
654	>	assertFalse(y.isEmpty());
655	>	assertEquals(x.remove(), y.remove());
656		}
657	<	}
758	<
759	<	/**
760	<	* drainTo(null) throws NullPointerException
761	<	*/
762	<	public void testDrainToNull() {
763	<	LinkedTransferQueue q = populatedQueue(SIZE);
764	<	try {
765	<	q.drainTo(null);
766	<	shouldThrow();
767	<	} catch (NullPointerException success) {}
768	<	}
769	<
770	<	/**
771	<	* drainTo(this) throws IllegalArgumentException
772	<	*/
773	<	public void testDrainToSelf() {
774	<	LinkedTransferQueue q = populatedQueue(SIZE);
775	<	try {
776	<	q.drainTo(q);
777	<	shouldThrow();
778	<	} catch (IllegalArgumentException success) {}
657	>	assertTrue(y.isEmpty());
658		}
659
660		/**
#	Line 824 | Line 703 | public class LinkedTransferQueueTest ext
703		}
704
705		/**
827	–	* drainTo(null, n) throws NullPointerException
828	–	*/
829	–	public void testDrainToNullN() {
830	–	LinkedTransferQueue q = populatedQueue(SIZE);
831	–	try {
832	–	q.drainTo(null, SIZE);
833	–	shouldThrow();
834	–	} catch (NullPointerException success) {}
835	–	}
836	–
837	–	/**
838	–	* drainTo(this, n) throws IllegalArgumentException
839	–	*/
840	–	public void testDrainToSelfN() {
841	–	LinkedTransferQueue q = populatedQueue(SIZE);
842	–	try {
843	–	q.drainTo(q, SIZE);
844	–	shouldThrow();
845	–	} catch (IllegalArgumentException success) {}
846	–	}
847	–
848	–	/**
706		* drainTo(c, n) empties first min(n, size) elements of queue into c
707		*/
708		public void testDrainToN() {
#	Line 1078 | Line 935 | public class LinkedTransferQueueTest ext
935		}
936
937		/**
938	<	* tryTransfer waits the amount given, and throws
1082	<	* InterruptedException when interrupted.
938	>	* tryTransfer blocks interruptibly if no takers
939		*/
940		public void testTryTransfer5() throws InterruptedException {
941		final LinkedTransferQueue q = new LinkedTransferQueue();
942	<	final CountDownLatch threadStarted = new CountDownLatch(1);
942	>	final CountDownLatch pleaseInterrupt = new CountDownLatch(1);
943		assertTrue(q.isEmpty());
944
945		Thread t = newStartedThread(new CheckedRunnable() {
946		public void realRun() throws InterruptedException {
947	<	long t0 = System.nanoTime();
948	<	threadStarted.countDown();
947	>	Thread.currentThread().interrupt();
948	>	try {
949	>	q.tryTransfer(new Object(), LONG_DELAY_MS, MILLISECONDS);
950	>	shouldThrow();
951	>	} catch (InterruptedException success) {}
952	>	assertFalse(Thread.interrupted());
953	>
954	>	pleaseInterrupt.countDown();
955		try {
956		q.tryTransfer(new Object(), LONG_DELAY_MS, MILLISECONDS);
957		shouldThrow();
958		} catch (InterruptedException success) {}
959	<	assertTrue(millisElapsedSince(t0) >= SHORT_DELAY_MS);
1098	<	assertTrue(millisElapsedSince(t0) < MEDIUM_DELAY_MS);
959	>	assertFalse(Thread.interrupted());
960		}});
961
962	<	threadStarted.await();
963	<	while (q.isEmpty())
1103	<	Thread.yield();
1104	<	Thread.sleep(SHORT_DELAY_MS);
962	>	await(pleaseInterrupt);
963	>	assertThreadStaysAlive(t);
964		t.interrupt();
965	<	awaitTermination(t, MEDIUM_DELAY_MS);
965	>	awaitTermination(t);
966		checkEmpty(q);
967		}
968
#	Line 1117 | Line 976 | public class LinkedTransferQueueTest ext
976		public void realRun() throws InterruptedException {
977		long t0 = System.nanoTime();
978		assertFalse(q.tryTransfer(new Object(),
979	<	SHORT_DELAY_MS, MILLISECONDS));
980	<	assertTrue(millisElapsedSince(t0) >= SHORT_DELAY_MS);
979	>	timeoutMillis(), MILLISECONDS));
980	>	assertTrue(millisElapsedSince(t0) >= timeoutMillis());
981		checkEmpty(q);
982		}});
983
984	<	awaitTermination(t, MEDIUM_DELAY_MS);
984	>	awaitTermination(t);
985		checkEmpty(q);
986		}
987
#	Line 1158 | Line 1017 | public class LinkedTransferQueueTest ext
1017		assertTrue(q.offer(four));
1018		assertEquals(1, q.size());
1019		long t0 = System.nanoTime();
1020	<	assertFalse(q.tryTransfer(five, SHORT_DELAY_MS, MILLISECONDS));
1021	<	assertTrue(millisElapsedSince(t0) >= SHORT_DELAY_MS);
1020	>	assertFalse(q.tryTransfer(five, timeoutMillis(), MILLISECONDS));
1021	>	assertTrue(millisElapsedSince(t0) >= timeoutMillis());
1022		assertEquals(1, q.size());
1023		assertSame(four, q.poll());
1024		assertNull(q.poll());

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