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

Comparing jsr166/src/test/tck/LinkedBlockingDequeTest.java (file contents):
Revision 1.23 by dl, Wed Sep 29 12:33:48 2010 UTC vs.
Revision 1.34 by jsr166, Sun Nov 28 08:43:53 2010 UTC

#	Line 11 | Line 11 | import static java.util.concurrent.TimeU
11		import java.io.*;
12
13		public class LinkedBlockingDequeTest extends JSR166TestCase {
14	+
15	+	public static class Unbounded extends BlockingQueueTest {
16	+	protected BlockingQueue emptyCollection() {
17	+	return new LinkedBlockingDeque();
18	+	}
19	+	}
20	+
21	+	public static class Bounded extends BlockingQueueTest {
22	+	protected BlockingQueue emptyCollection() {
23	+	return new LinkedBlockingDeque(20);
24	+	}
25	+	}
26	+
27		public static void main(String[] args) {
28		junit.textui.TestRunner.run(suite());
29		}
30
31		public static Test suite() {
32	<	return new TestSuite(LinkedBlockingDequeTest.class);
32	>	return newTestSuite(LinkedBlockingDequeTest.class,
33	>	new Unbounded().testSuite(),
34	>	new Bounded().testSuite());
35		}
36
37		/**
38		* Create a deque of given size containing consecutive
39		* Integers 0 ... n.
40		*/
41	<	private LinkedBlockingDeque populatedDeque(int n) {
42	<	LinkedBlockingDeque q = new LinkedBlockingDeque(n);
41	>	private LinkedBlockingDeque<Integer> populatedDeque(int n) {
42	>	LinkedBlockingDeque<Integer> q =
43	>	new LinkedBlockingDeque<Integer>(n);
44		assertTrue(q.isEmpty());
45		for (int i = 0; i < n; i++)
46		assertTrue(q.offer(new Integer(i)));
#	Line 93 | Line 109 | public class LinkedBlockingDequeTest ext
109		}
110
111		/**
112	<	*  pollFirst succeeds unless empty
112	>	* pollFirst succeeds unless empty
113		*/
114		public void testPollFirst() {
115		LinkedBlockingDeque q = populatedDeque(SIZE);
#	Line 104 | Line 120 | public class LinkedBlockingDequeTest ext
120		}
121
122		/**
123	<	*  pollLast succeeds unless empty
123	>	* pollLast succeeds unless empty
124		*/
125		public void testPollLast() {
126		LinkedBlockingDeque q = populatedDeque(SIZE);
#	Line 115 | Line 131 | public class LinkedBlockingDequeTest ext
131		}
132
133		/**
134	<	*  peekFirst returns next element, or null if empty
134	>	* peekFirst returns next element, or null if empty
135		*/
136		public void testPeekFirst() {
137		LinkedBlockingDeque q = populatedDeque(SIZE);
#	Line 129 | Line 145 | public class LinkedBlockingDequeTest ext
145		}
146
147		/**
148	<	*  peek returns next element, or null if empty
148	>	* peek returns next element, or null if empty
149		*/
150		public void testPeek() {
151		LinkedBlockingDeque q = populatedDeque(SIZE);
#	Line 143 | Line 159 | public class LinkedBlockingDequeTest ext
159		}
160
161		/**
162	<	*  peekLast returns next element, or null if empty
162	>	* peekLast returns next element, or null if empty
163		*/
164		public void testPeekLast() {
165		LinkedBlockingDeque q = populatedDeque(SIZE);
#	Line 173 | Line 189 | public class LinkedBlockingDequeTest ext
189		}
190
191		/**
192	<	*  getLast() returns last element, or throws NSEE if empty
192	>	* getLast() returns last element, or throws NSEE if empty
193		*/
194		public void testLastElement() {
195		LinkedBlockingDeque q = populatedDeque(SIZE);
#	Line 219 | Line 235 | public class LinkedBlockingDequeTest ext
235		}
236
237		/**
238	<	*  remove removes next element, or throws NSEE if empty
238	>	* remove removes next element, or throws NSEE if empty
239		*/
240		public void testRemove() {
241		LinkedBlockingDeque q = populatedDeque(SIZE);
#	Line 442 | Line 458 | public class LinkedBlockingDequeTest ext
458
459
460		/**
461	<	*  pop removes next element, or throws NSEE if empty
461	>	* pop removes next element, or throws NSEE if empty
462		*/
463		public void testPop() {
464		LinkedBlockingDeque q = populatedDeque(SIZE);
#	Line 667 | Line 683 | public class LinkedBlockingDequeTest ext
683		}
684
685		/**
670	–	* take blocks interruptibly when empty
671	–	*/
672	–	public void testTakeFromEmpty() throws InterruptedException {
673	–	final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
674	–	Thread t = new ThreadShouldThrow(InterruptedException.class) {
675	–	public void realRun() throws InterruptedException {
676	–	q.take();
677	–	}};
678	–
679	–	t.start();
680	–	Thread.sleep(SHORT_DELAY_MS);
681	–	t.interrupt();
682	–	t.join();
683	–	}
684	–
685	–	/**
686		* Take removes existing elements until empty, then blocks interruptibly
687		*/
688		public void testBlockingTake() throws InterruptedException {
#	Line 743 | Line 743 | public class LinkedBlockingDequeTest ext
743		* returning timeout status
744		*/
745		public void testInterruptedTimedPoll() throws InterruptedException {
746	<	Thread t = new Thread(new CheckedRunnable() {
746	>	final BlockingQueue<Integer> q = populatedDeque(SIZE);
747	>	final CountDownLatch aboutToWait = new CountDownLatch(1);
748	>	Thread t = newStartedThread(new CheckedRunnable() {
749		public void realRun() throws InterruptedException {
748	–	LinkedBlockingDeque q = populatedDeque(SIZE);
750		for (int i = 0; i < SIZE; ++i) {
751	<	assertEquals(i, q.poll(SHORT_DELAY_MS, MILLISECONDS));
751	>	long t0 = System.nanoTime();
752	>	assertEquals(i, (int) q.poll(LONG_DELAY_MS, MILLISECONDS));
753	>	assertTrue(millisElapsedSince(t0) < SMALL_DELAY_MS);
754		}
755	+	long t0 = System.nanoTime();
756	+	aboutToWait.countDown();
757		try {
758	<	q.poll(SMALL_DELAY_MS, MILLISECONDS);
754	<	shouldThrow();
755	<	} catch (InterruptedException success) {}
756	<	}});
757	<
758	<	t.start();
759	<	Thread.sleep(SHORT_DELAY_MS);
760	<	t.interrupt();
761	<	t.join();
762	<	}
763	<
764	<	/**
765	<	*  timed poll before a delayed offer fails; after offer succeeds;
766	<	*  on interruption throws
767	<	*/
768	<	public void testTimedPollWithOffer() throws InterruptedException {
769	<	final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
770	<	Thread t = new Thread(new CheckedRunnable() {
771	<	public void realRun() throws InterruptedException {
772	<	try {
773	<	assertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS));
774	<	assertSame(zero, q.poll(LONG_DELAY_MS, MILLISECONDS));
775	<	q.poll(LONG_DELAY_MS, MILLISECONDS);
758	>	q.poll(MEDIUM_DELAY_MS, MILLISECONDS);
759		shouldThrow();
760	<	} catch (InterruptedException success) {}
760	>	} catch (InterruptedException success) {
761	>	assertTrue(millisElapsedSince(t0) < MEDIUM_DELAY_MS);
762	>	}
763		}});
764
765	<	t.start();
766	<	Thread.sleep(SMALL_DELAY_MS);
782	<	assertTrue(q.offer(zero, SHORT_DELAY_MS, MILLISECONDS));
765	>	aboutToWait.await();
766	>	waitForThreadToEnterWaitState(t, SMALL_DELAY_MS);
767		t.interrupt();
768	<	t.join();
768	>	awaitTermination(t, MEDIUM_DELAY_MS);
769	>	checkEmpty(q);
770		}
771
787	–
772		/**
773		* putFirst(null) throws NPE
774		*/
#	Line 976 | Line 960 | public class LinkedBlockingDequeTest ext
960		}
961
962		/**
963	<	*  timed pollFirst before a delayed offerFirst fails; after offerFirst succeeds;
964	<	*  on interruption throws
963	>	* timed pollFirst before a delayed offerFirst fails; after offerFirst succeeds;
964	>	* on interruption throws
965		*/
966		public void testTimedPollFirstWithOfferFirst() throws InterruptedException {
967		final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
#	Line 1188 | Line 1172 | public class LinkedBlockingDequeTest ext
1172		}
1173
1174		/**
1175	<	*  timed poll before a delayed offerLast fails; after offerLast succeeds;
1176	<	*  on interruption throws
1175	>	* timed poll before a delayed offerLast fails; after offerLast succeeds;
1176	>	* on interruption throws
1177		*/
1178		public void testTimedPollWithOfferLast() throws InterruptedException {
1179		final LinkedBlockingDeque q = new LinkedBlockingDeque(2);
#	Line 1232 | Line 1216 | public class LinkedBlockingDequeTest ext
1216		public void testRemoveElement() {
1217		LinkedBlockingDeque q = populatedDeque(SIZE);
1218		for (int i = 1; i < SIZE; i+=2) {
1219	<	assertTrue(q.remove(new Integer(i)));
1219	>	assertTrue(q.contains(i));
1220	>	assertTrue(q.remove(i));
1221	>	assertFalse(q.contains(i));
1222	>	assertTrue(q.contains(i-1));
1223		}
1224		for (int i = 0; i < SIZE; i+=2) {
1225	<	assertTrue(q.remove(new Integer(i)));
1226	<	assertFalse(q.remove(new Integer(i+1)));
1225	>	assertTrue(q.contains(i));
1226	>	assertTrue(q.remove(i));
1227	>	assertFalse(q.contains(i));
1228	>	assertFalse(q.remove(i+1));
1229	>	assertFalse(q.contains(i+1));
1230		}
1231		assertTrue(q.isEmpty());
1232		}
#	Line 1319 | Line 1309 | public class LinkedBlockingDequeTest ext
1309		}
1310
1311		/**
1312	<	* toArray contains all elements
1312	>	* toArray contains all elements in FIFO order
1313		*/
1314		public void testToArray() throws InterruptedException{
1315		LinkedBlockingDeque q = populatedDeque(SIZE);
1316		Object[] o = q.toArray();
1317		for (int i = 0; i < o.length; i++)
1318	<	assertEquals(o[i], q.take());
1318	>	assertSame(o[i], q.poll());
1319		}
1320
1321		/**
1322	<	* toArray(a) contains all elements
1322	>	* toArray(a) contains all elements in FIFO order
1323		*/
1324	<	public void testToArray2() throws InterruptedException {
1325	<	LinkedBlockingDeque q = populatedDeque(SIZE);
1324	>	public void testToArray2() {
1325	>	LinkedBlockingDeque<Integer> q = populatedDeque(SIZE);
1326		Integer[] ints = new Integer[SIZE];
1327	<	ints = (Integer[])q.toArray(ints);
1327	>	Integer[] array = q.toArray(ints);
1328	>	assertSame(ints, array);
1329		for (int i = 0; i < ints.length; i++)
1330	<	assertEquals(ints[i], q.take());
1330	>	assertSame(ints[i], q.remove());
1331		}
1332
1333		/**
1334	<	* toArray(null) throws NPE
1334	>	* toArray(null) throws NullPointerException
1335		*/
1336	<	public void testToArray_BadArg() {
1336	>	public void testToArray_NullArg() {
1337		LinkedBlockingDeque q = populatedDeque(SIZE);
1338		try {
1339	<	Object o[] = q.toArray(null);
1339	>	q.toArray(null);
1340		shouldThrow();
1341		} catch (NullPointerException success) {}
1342		}
1343
1344		/**
1345	<	* toArray with incompatible array type throws CCE
1345	>	* toArray(incompatible array type) throws ArrayStoreException
1346		*/
1347		public void testToArray1_BadArg() {
1348		LinkedBlockingDeque q = populatedDeque(SIZE);
1349		try {
1350	<	Object o[] = q.toArray(new String[10]);
1350	>	q.toArray(new String[10]);
1351		shouldThrow();
1352		} catch (ArrayStoreException success) {}
1353		}
#	Line 1426 | Line 1417 | public class LinkedBlockingDequeTest ext
1417
1418
1419		/**
1420	<	*  Descending iterator iterates through all elements
1420	>	* Descending iterator iterates through all elements
1421		*/
1422		public void testDescendingIterator() {
1423		LinkedBlockingDeque q = populatedDeque(SIZE);
#	Line 1445 | Line 1436 | public class LinkedBlockingDequeTest ext
1436		}
1437
1438		/**
1439	<	*  Descending iterator ordering is reverse FIFO
1439	>	* Descending iterator ordering is reverse FIFO
1440		*/
1441		public void testDescendingIteratorOrdering() {
1442		final LinkedBlockingDeque q = new LinkedBlockingDeque();
#	Line 1654 | Line 1645 | public class LinkedBlockingDequeTest ext
1645		}
1646
1647		/**
1648	<	* drainTo(c, n) empties first max {n, size} elements of deque into c
1648	>	* drainTo(c, n) empties first min(n, size) elements of queue into c
1649		*/
1650		public void testDrainToN() {
1651		LinkedBlockingDeque q = new LinkedBlockingDeque();
#	Line 1663 | Line 1654 | public class LinkedBlockingDequeTest ext
1654		assertTrue(q.offer(new Integer(j)));
1655		ArrayList l = new ArrayList();
1656		q.drainTo(l, i);
1657	<	int k = (i < SIZE)? i : SIZE;
1657	>	int k = (i < SIZE) ? i : SIZE;
1658		assertEquals(l.size(), k);
1659		assertEquals(q.size(), SIZE-k);
1660		for (int j = 0; j < k; ++j)

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