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

Comparing jsr166/src/test/tck/LinkedBlockingQueueTest.java (file contents):
Revision 1.22 by jsr166, Sun Nov 22 00:17:37 2009 UTC vs.
Revision 1.38 by jsr166, Thu Nov 18 20:21:53 2010 UTC

#	Line 14 | Line 14 | import java.io.*;
14
15		public class LinkedBlockingQueueTest extends JSR166TestCase {
16
17	+	public static class Unbounded extends BlockingQueueTest {
18	+	protected BlockingQueue emptyCollection() {
19	+	return new LinkedBlockingQueue();
20	+	}
21	+	}
22	+
23	+	public static class Bounded extends BlockingQueueTest {
24	+	protected BlockingQueue emptyCollection() {
25	+	return new LinkedBlockingQueue(20);
26	+	}
27	+	}
28	+
29		public static void main(String[] args) {
30	<	junit.textui.TestRunner.run (suite());
30	>	junit.textui.TestRunner.run(suite());
31		}
32
33		public static Test suite() {
34	<	return new TestSuite(LinkedBlockingQueueTest.class);
34	>	return newTestSuite(LinkedBlockingQueueTest.class,
35	>	new Unbounded().testSuite(),
36	>	new Bounded().testSuite());
37		}
38
39
#	Line 27 | Line 41 | public class LinkedBlockingQueueTest ext
41		* Create a queue of given size containing consecutive
42		* Integers 0 ... n.
43		*/
44	<	private LinkedBlockingQueue populatedQueue(int n) {
45	<	LinkedBlockingQueue q = new LinkedBlockingQueue(n);
44	>	private LinkedBlockingQueue<Integer> populatedQueue(int n) {
45	>	LinkedBlockingQueue<Integer> q =
46	>	new LinkedBlockingQueue<Integer>(n);
47		assertTrue(q.isEmpty());
48		for (int i = 0; i < n; i++)
49		assertTrue(q.offer(new Integer(i)));
#	Line 214 | Line 229 | public class LinkedBlockingQueueTest ext
229		shouldThrow();
230		} catch (NullPointerException success) {}
231		}
232	+
233		/**
234		* addAll of a collection with any null elements throws NPE after
235		* possibly adding some elements
#	Line 228 | Line 244 | public class LinkedBlockingQueueTest ext
244		shouldThrow();
245		} catch (NullPointerException success) {}
246		}
247	+
248		/**
249		* addAll throws ISE if not enough room
250		*/
#	Line 241 | Line 258 | public class LinkedBlockingQueueTest ext
258		shouldThrow();
259		} catch (IllegalStateException success) {}
260		}
261	+
262		/**
263		* Queue contains all elements, in traversal order, of successful addAll
264		*/
#	Line 359 | Line 377 | public class LinkedBlockingQueueTest ext
377		public void testTake() throws InterruptedException {
378		LinkedBlockingQueue q = populatedQueue(SIZE);
379		for (int i = 0; i < SIZE; ++i) {
380	<	assertEquals(i, ((Integer)q.take()).intValue());
380	>	assertEquals(i, q.take());
381		}
382		}
383
384		/**
367	–	* take blocks interruptibly when empty
368	–	*/
369	–	public void testTakeFromEmpty() throws InterruptedException {
370	–	final LinkedBlockingQueue q = new LinkedBlockingQueue(2);
371	–	Thread t = new ThreadShouldThrow(InterruptedException.class) {
372	–	public void realRun() throws InterruptedException {
373	–	q.take();
374	–	}};
375	–
376	–	t.start();
377	–	Thread.sleep(SHORT_DELAY_MS);
378	–	t.interrupt();
379	–	t.join();
380	–	}
381	–
382	–	/**
385		* Take removes existing elements until empty, then blocks interruptibly
386		*/
387		public void testBlockingTake() throws InterruptedException {
#	Line 387 | Line 389 | public class LinkedBlockingQueueTest ext
389		Thread t = new Thread(new CheckedRunnable() {
390		public void realRun() throws InterruptedException {
391		for (int i = 0; i < SIZE; ++i) {
392	<	assertEquals(i, ((Integer)q.take()).intValue());
392	>	assertEquals(i, q.take());
393		}
394		try {
395		q.take();
#	Line 407 | Line 409 | public class LinkedBlockingQueueTest ext
409		public void testPoll() {
410		LinkedBlockingQueue q = populatedQueue(SIZE);
411		for (int i = 0; i < SIZE; ++i) {
412	<	assertEquals(i, ((Integer)q.poll()).intValue());
412	>	assertEquals(i, q.poll());
413		}
414		assertNull(q.poll());
415		}
416
417		/**
418	<	* timed pool with zero timeout succeeds when non-empty, else times out
418	>	* timed poll with zero timeout succeeds when non-empty, else times out
419		*/
420		public void testTimedPoll0() throws InterruptedException {
421		LinkedBlockingQueue q = populatedQueue(SIZE);
422		for (int i = 0; i < SIZE; ++i) {
423	<	assertEquals(i, ((Integer)q.poll(0, MILLISECONDS)).intValue());
423	>	assertEquals(i, q.poll(0, MILLISECONDS));
424		}
425		assertNull(q.poll(0, MILLISECONDS));
426		}
427
428		/**
429	<	* timed pool with nonzero timeout succeeds when non-empty, else times out
429	>	* timed poll with nonzero timeout succeeds when non-empty, else times out
430		*/
431		public void testTimedPoll() throws InterruptedException {
432		LinkedBlockingQueue q = populatedQueue(SIZE);
433		for (int i = 0; i < SIZE; ++i) {
434	<	assertEquals(i, ((Integer)q.poll(SHORT_DELAY_MS, MILLISECONDS)).intValue());
434	>	assertEquals(i, q.poll(SHORT_DELAY_MS, MILLISECONDS));
435		}
436		assertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS));
437		}
#	Line 443 | Line 445 | public class LinkedBlockingQueueTest ext
445		public void realRun() throws InterruptedException {
446		LinkedBlockingQueue q = populatedQueue(SIZE);
447		for (int i = 0; i < SIZE; ++i) {
448	<	assertEquals(i, ((Integer)q.poll(SHORT_DELAY_MS, MILLISECONDS)).intValue());
448	>	assertEquals(i, q.poll(SHORT_DELAY_MS, MILLISECONDS));
449		}
450		try {
451		q.poll(SMALL_DELAY_MS, MILLISECONDS);
#	Line 458 | Line 460 | public class LinkedBlockingQueueTest ext
460		}
461
462		/**
461	–	*  timed poll before a delayed offer fails; after offer succeeds;
462	–	*  on interruption throws
463	–	*/
464	–	public void testTimedPollWithOffer() throws InterruptedException {
465	–	final LinkedBlockingQueue q = new LinkedBlockingQueue(2);
466	–	Thread t = new Thread(new CheckedRunnable() {
467	–	public void realRun() throws InterruptedException {
468	–	assertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS));
469	–	assertSame(zero, q.poll(LONG_DELAY_MS, MILLISECONDS));
470	–	try {
471	–	q.poll(LONG_DELAY_MS, MILLISECONDS);
472	–	shouldThrow();
473	–	} catch (InterruptedException success) {}
474	–	}});
475	–
476	–	t.start();
477	–	Thread.sleep(SMALL_DELAY_MS);
478	–	assertTrue(q.offer(zero, SHORT_DELAY_MS, MILLISECONDS));
479	–	t.interrupt();
480	–	t.join();
481	–	}
482	–
483	–	/**
463		* peek returns next element, or null if empty
464		*/
465		public void testPeek() {
466		LinkedBlockingQueue q = populatedQueue(SIZE);
467		for (int i = 0; i < SIZE; ++i) {
468	<	assertEquals(i, ((Integer)q.peek()).intValue());
469	<	q.poll();
468	>	assertEquals(i, q.peek());
469	>	assertEquals(i, q.poll());
470		assertTrue(q.peek() == null ||
471	<	i != ((Integer)q.peek()).intValue());
471	>	!q.peek().equals(i));
472		}
473		assertNull(q.peek());
474		}
#	Line 500 | Line 479 | public class LinkedBlockingQueueTest ext
479		public void testElement() {
480		LinkedBlockingQueue q = populatedQueue(SIZE);
481		for (int i = 0; i < SIZE; ++i) {
482	<	assertEquals(i, ((Integer)q.element()).intValue());
483	<	q.poll();
482	>	assertEquals(i, q.element());
483	>	assertEquals(i, q.poll());
484		}
485		try {
486		q.element();
#	Line 515 | Line 494 | public class LinkedBlockingQueueTest ext
494		public void testRemove() {
495		LinkedBlockingQueue q = populatedQueue(SIZE);
496		for (int i = 0; i < SIZE; ++i) {
497	<	assertEquals(i, ((Integer)q.remove()).intValue());
497	>	assertEquals(i, q.remove());
498		}
499		try {
500		q.remove();
#	Line 529 | Line 508 | public class LinkedBlockingQueueTest ext
508		public void testRemoveElement() {
509		LinkedBlockingQueue q = populatedQueue(SIZE);
510		for (int i = 1; i < SIZE; i+=2) {
511	<	assertTrue(q.remove(new Integer(i)));
511	>	assertTrue(q.contains(i));
512	>	assertTrue(q.remove(i));
513	>	assertFalse(q.contains(i));
514	>	assertTrue(q.contains(i-1));
515		}
516		for (int i = 0; i < SIZE; i+=2) {
517	<	assertTrue(q.remove(new Integer(i)));
518	<	assertFalse(q.remove(new Integer(i+1)));
517	>	assertTrue(q.contains(i));
518	>	assertTrue(q.remove(i));
519	>	assertFalse(q.contains(i));
520	>	assertFalse(q.remove(i+1));
521	>	assertFalse(q.contains(i+1));
522		}
523		assertTrue(q.isEmpty());
524		}
#	Line 629 | Line 614 | public class LinkedBlockingQueueTest ext
614		}
615
616		/**
617	<	* toArray contains all elements
617	>	* toArray contains all elements in FIFO order
618		*/
619	<	public void testToArray() throws InterruptedException {
619	>	public void testToArray() {
620		LinkedBlockingQueue q = populatedQueue(SIZE);
621		Object[] o = q.toArray();
622		for (int i = 0; i < o.length; i++)
623	<	assertEquals(o[i], q.take());
623	>	assertSame(o[i], q.poll());
624		}
625
626		/**
627	<	* toArray(a) contains all elements
627	>	* toArray(a) contains all elements in FIFO order
628		*/
629		public void testToArray2() throws InterruptedException {
630	<	LinkedBlockingQueue q = populatedQueue(SIZE);
630	>	LinkedBlockingQueue<Integer> q = populatedQueue(SIZE);
631		Integer[] ints = new Integer[SIZE];
632	<	ints = (Integer[])q.toArray(ints);
632	>	Integer[] array = q.toArray(ints);
633	>	assertSame(ints, array);
634		for (int i = 0; i < ints.length; i++)
635	<	assertEquals(ints[i], q.take());
635	>	assertSame(ints[i], q.poll());
636		}
637
638		/**
639	<	* toArray(null) throws NPE
639	>	* toArray(null) throws NullPointerException
640		*/
641	<	public void testToArray_BadArg() {
641	>	public void testToArray_NullArg() {
642	>	LinkedBlockingQueue q = populatedQueue(SIZE);
643		try {
644	<	LinkedBlockingQueue q = populatedQueue(SIZE);
658	<	Object o[] = q.toArray(null);
644	>	q.toArray(null);
645		shouldThrow();
646		} catch (NullPointerException success) {}
647		}
648
649		/**
650	<	* toArray with incompatible array type throws CCE
650	>	* toArray(incompatible array type) throws ArrayStoreException
651		*/
652		public void testToArray1_BadArg() {
653	+	LinkedBlockingQueue q = populatedQueue(SIZE);
654		try {
655	<	LinkedBlockingQueue q = populatedQueue(SIZE);
669	<	Object o[] = q.toArray(new String[10] );
655	>	q.toArray(new String[10]);
656		shouldThrow();
657		} catch (ArrayStoreException success) {}
658		}
#	Line 686 | Line 672 | public class LinkedBlockingQueueTest ext
672		/**
673		* iterator.remove removes current element
674		*/
675	<	public void testIteratorRemove () {
675	>	public void testIteratorRemove() {
676		final LinkedBlockingQueue q = new LinkedBlockingQueue(3);
677		q.add(two);
678		q.add(one);
#	Line 697 | Line 683 | public class LinkedBlockingQueueTest ext
683		it.remove();
684
685		it = q.iterator();
686	<	assertEquals(it.next(), one);
687	<	assertEquals(it.next(), three);
686	>	assertSame(it.next(), one);
687	>	assertSame(it.next(), three);
688		assertFalse(it.hasNext());
689		}
690
#	Line 714 | Line 700 | public class LinkedBlockingQueueTest ext
700		assertEquals(0, q.remainingCapacity());
701		int k = 0;
702		for (Iterator it = q.iterator(); it.hasNext();) {
703	<	int i = ((Integer)(it.next())).intValue();
718	<	assertEquals(++k, i);
703	>	assertEquals(++k, it.next());
704		}
705		assertEquals(3, k);
706		}
#	Line 723 | Line 708 | public class LinkedBlockingQueueTest ext
708		/**
709		* Modifications do not cause iterators to fail
710		*/
711	<	public void testWeaklyConsistentIteration () {
711	>	public void testWeaklyConsistentIteration() {
712		final LinkedBlockingQueue q = new LinkedBlockingQueue(3);
713		q.add(one);
714		q.add(two);
#	Line 758 | Line 743 | public class LinkedBlockingQueueTest ext
743		ExecutorService executor = Executors.newFixedThreadPool(2);
744		executor.execute(new CheckedRunnable() {
745		public void realRun() throws InterruptedException {
746	<	threadAssertFalse(q.offer(three));
747	<	threadAssertTrue(q.offer(three, MEDIUM_DELAY_MS, MILLISECONDS));
748	<	threadAssertEquals(0, q.remainingCapacity());
746	>	assertFalse(q.offer(three));
747	>	assertTrue(q.offer(three, MEDIUM_DELAY_MS, MILLISECONDS));
748	>	assertEquals(0, q.remainingCapacity());
749		}});
750
751		executor.execute(new CheckedRunnable() {
752		public void realRun() throws InterruptedException {
753		Thread.sleep(SMALL_DELAY_MS);
754	<	threadAssertEquals(one, q.take());
754	>	assertSame(one, q.take());
755		}});
756
757		joinPool(executor);
#	Line 780 | Line 765 | public class LinkedBlockingQueueTest ext
765		ExecutorService executor = Executors.newFixedThreadPool(2);
766		executor.execute(new CheckedRunnable() {
767		public void realRun() throws InterruptedException {
768	<	threadAssertNull(q.poll());
769	<	threadAssertTrue(null != q.poll(MEDIUM_DELAY_MS, MILLISECONDS));
770	<	threadAssertTrue(q.isEmpty());
768	>	assertNull(q.poll());
769	>	assertSame(one, q.poll(MEDIUM_DELAY_MS, MILLISECONDS));
770	>	assertTrue(q.isEmpty());
771		}});
772
773		executor.execute(new CheckedRunnable() {
#	Line 902 | Line 887 | public class LinkedBlockingQueueTest ext
887		}
888
889		/**
890	<	* drainTo(c, n) empties first max {n, size} elements of queue into c
890	>	* drainTo(c, n) empties first min(n, size) elements of queue into c
891		*/
892		public void testDrainToN() {
893		LinkedBlockingQueue q = new LinkedBlockingQueue();
#	Line 911 | Line 896 | public class LinkedBlockingQueueTest ext
896		assertTrue(q.offer(new Integer(j)));
897		ArrayList l = new ArrayList();
898		q.drainTo(l, i);
899	<	int k = (i < SIZE)? i : SIZE;
899	>	int k = (i < SIZE) ? i : SIZE;
900		assertEquals(l.size(), k);
901		assertEquals(q.size(), SIZE-k);
902		for (int j = 0; j < k; ++j)

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