13 |
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import java.io.*; |
14 |
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|
15 |
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public class PriorityBlockingQueueTest extends JSR166TestCase { |
16 |
+ |
|
17 |
+ |
public static class Generic extends BlockingQueueTest { |
18 |
+ |
protected BlockingQueue emptyCollection() { |
19 |
+ |
return new PriorityBlockingQueue(); |
20 |
+ |
} |
21 |
+ |
} |
22 |
+ |
|
23 |
+ |
public static class InitialCapacity extends BlockingQueueTest { |
24 |
+ |
protected BlockingQueue emptyCollection() { |
25 |
+ |
return new PriorityBlockingQueue(20); |
26 |
+ |
} |
27 |
+ |
} |
28 |
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|
29 |
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public static void main(String[] args) { |
30 |
< |
junit.textui.TestRunner.run (suite()); |
30 |
> |
junit.textui.TestRunner.run(suite()); |
31 |
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} |
32 |
+ |
|
33 |
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public static Test suite() { |
34 |
< |
return new TestSuite(PriorityBlockingQueueTest.class); |
34 |
> |
return newTestSuite(PriorityBlockingQueueTest.class, |
35 |
> |
new Generic().testSuite(), |
36 |
> |
new InitialCapacity().testSuite()); |
37 |
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} |
38 |
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|
39 |
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private static final int NOCAP = Integer.MAX_VALUE; |
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/** Sample Comparator */ |
42 |
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static class MyReverseComparator implements Comparator { |
43 |
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public int compare(Object x, Object y) { |
44 |
< |
int i = ((Integer)x).intValue(); |
29 |
< |
int j = ((Integer)y).intValue(); |
30 |
< |
if (i < j) return 1; |
31 |
< |
if (i > j) return -1; |
32 |
< |
return 0; |
44 |
> |
return ((Comparable)y).compareTo(x); |
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} |
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} |
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|
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* Create a queue of given size containing consecutive |
50 |
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* Integers 0 ... n. |
51 |
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*/ |
52 |
< |
private PriorityBlockingQueue populatedQueue(int n) { |
53 |
< |
PriorityBlockingQueue q = new PriorityBlockingQueue(n); |
52 |
> |
private PriorityBlockingQueue<Integer> populatedQueue(int n) { |
53 |
> |
PriorityBlockingQueue<Integer> q = |
54 |
> |
new PriorityBlockingQueue<Integer>(n); |
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assertTrue(q.isEmpty()); |
56 |
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for (int i = n-1; i >= 0; i-=2) |
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assertTrue(q.offer(new Integer(i))); |
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shouldThrow(); |
263 |
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} catch (NullPointerException success) {} |
264 |
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} |
265 |
+ |
|
266 |
|
/** |
267 |
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* addAll of a collection with any null elements throws NPE after |
268 |
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* possibly adding some elements |
346 |
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public void realRun() { |
347 |
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q.put(new Integer(0)); |
348 |
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q.put(new Integer(0)); |
349 |
< |
threadAssertTrue(q.offer(new Integer(0), SHORT_DELAY_MS, MILLISECONDS)); |
350 |
< |
threadAssertTrue(q.offer(new Integer(0), LONG_DELAY_MS, MILLISECONDS)); |
349 |
> |
assertTrue(q.offer(new Integer(0), SHORT_DELAY_MS, MILLISECONDS)); |
350 |
> |
assertTrue(q.offer(new Integer(0), LONG_DELAY_MS, MILLISECONDS)); |
351 |
|
}}); |
352 |
|
|
353 |
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t.start(); |
362 |
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public void testTake() throws InterruptedException { |
363 |
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PriorityBlockingQueue q = populatedQueue(SIZE); |
364 |
|
for (int i = 0; i < SIZE; ++i) { |
365 |
< |
assertEquals(i, ((Integer)q.take()).intValue()); |
365 |
> |
assertEquals(i, q.take()); |
366 |
|
} |
367 |
|
} |
368 |
|
|
369 |
|
/** |
356 |
– |
* take blocks interruptibly when empty |
357 |
– |
*/ |
358 |
– |
public void testTakeFromEmpty() throws InterruptedException { |
359 |
– |
final PriorityBlockingQueue q = new PriorityBlockingQueue(2); |
360 |
– |
Thread t = new Thread(new CheckedInterruptedRunnable() { |
361 |
– |
public void realRun() throws InterruptedException { |
362 |
– |
q.take(); |
363 |
– |
}}); |
364 |
– |
|
365 |
– |
t.start(); |
366 |
– |
Thread.sleep(SHORT_DELAY_MS); |
367 |
– |
t.interrupt(); |
368 |
– |
t.join(); |
369 |
– |
} |
370 |
– |
|
371 |
– |
/** |
370 |
|
* Take removes existing elements until empty, then blocks interruptibly |
371 |
|
*/ |
372 |
|
public void testBlockingTake() throws InterruptedException { |
373 |
< |
Thread t = new Thread(new CheckedInterruptedRunnable() { |
373 |
> |
final PriorityBlockingQueue q = populatedQueue(SIZE); |
374 |
> |
Thread t = new Thread(new CheckedRunnable() { |
375 |
|
public void realRun() throws InterruptedException { |
377 |
– |
PriorityBlockingQueue q = populatedQueue(SIZE); |
376 |
|
for (int i = 0; i < SIZE; ++i) { |
377 |
< |
threadAssertEquals(i, ((Integer)q.take()).intValue()); |
377 |
> |
assertEquals(i, q.take()); |
378 |
|
} |
379 |
< |
q.take(); |
379 |
> |
try { |
380 |
> |
q.take(); |
381 |
> |
shouldThrow(); |
382 |
> |
} catch (InterruptedException success) {} |
383 |
|
}}); |
384 |
|
|
385 |
|
t.start(); |
395 |
|
public void testPoll() { |
396 |
|
PriorityBlockingQueue q = populatedQueue(SIZE); |
397 |
|
for (int i = 0; i < SIZE; ++i) { |
398 |
< |
assertEquals(i, ((Integer)q.poll()).intValue()); |
398 |
> |
assertEquals(i, q.poll()); |
399 |
|
} |
400 |
|
assertNull(q.poll()); |
401 |
|
} |
402 |
|
|
403 |
|
/** |
404 |
< |
* timed pool with zero timeout succeeds when non-empty, else times out |
404 |
> |
* timed poll with zero timeout succeeds when non-empty, else times out |
405 |
|
*/ |
406 |
|
public void testTimedPoll0() throws InterruptedException { |
407 |
|
PriorityBlockingQueue q = populatedQueue(SIZE); |
408 |
|
for (int i = 0; i < SIZE; ++i) { |
409 |
< |
assertEquals(i, ((Integer)q.poll(0, MILLISECONDS)).intValue()); |
409 |
> |
assertEquals(i, q.poll(0, MILLISECONDS)); |
410 |
|
} |
411 |
|
assertNull(q.poll(0, MILLISECONDS)); |
412 |
|
} |
413 |
|
|
414 |
|
/** |
415 |
< |
* timed pool with nonzero timeout succeeds when non-empty, else times out |
415 |
> |
* timed poll with nonzero timeout succeeds when non-empty, else times out |
416 |
|
*/ |
417 |
|
public void testTimedPoll() throws InterruptedException { |
418 |
|
PriorityBlockingQueue q = populatedQueue(SIZE); |
419 |
|
for (int i = 0; i < SIZE; ++i) { |
420 |
< |
assertEquals(i, ((Integer)q.poll(SHORT_DELAY_MS, MILLISECONDS)).intValue()); |
420 |
> |
assertEquals(i, q.poll(SHORT_DELAY_MS, MILLISECONDS)); |
421 |
|
} |
422 |
|
assertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS)); |
423 |
|
} |
427 |
|
* returning timeout status |
428 |
|
*/ |
429 |
|
public void testInterruptedTimedPoll() throws InterruptedException { |
430 |
< |
Thread t = new Thread(new CheckedRunnable() { |
430 |
> |
final BlockingQueue<Integer> q = populatedQueue(SIZE); |
431 |
> |
final CountDownLatch aboutToWait = new CountDownLatch(1); |
432 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
433 |
|
public void realRun() throws InterruptedException { |
431 |
– |
PriorityBlockingQueue q = populatedQueue(SIZE); |
434 |
|
for (int i = 0; i < SIZE; ++i) { |
435 |
< |
assertEquals(i, ((Integer)q.poll(SHORT_DELAY_MS, MILLISECONDS)).intValue()); |
435 |
> |
long t0 = System.nanoTime(); |
436 |
> |
assertEquals(i, (int) q.poll(LONG_DELAY_MS, MILLISECONDS)); |
437 |
> |
assertTrue(millisElapsedSince(t0) < SMALL_DELAY_MS); |
438 |
|
} |
439 |
+ |
long t0 = System.nanoTime(); |
440 |
+ |
aboutToWait.countDown(); |
441 |
|
try { |
442 |
< |
q.poll(LONG_DELAY_MS, MILLISECONDS); |
442 |
> |
q.poll(MEDIUM_DELAY_MS, MILLISECONDS); |
443 |
|
shouldThrow(); |
444 |
< |
} catch (InterruptedException success) {} |
445 |
< |
}}); |
446 |
< |
|
441 |
< |
t.start(); |
442 |
< |
Thread.sleep(SHORT_DELAY_MS); |
443 |
< |
t.interrupt(); |
444 |
< |
t.join(); |
445 |
< |
} |
446 |
< |
|
447 |
< |
/** |
448 |
< |
* timed poll before a delayed offer fails; after offer succeeds; |
449 |
< |
* on interruption throws |
450 |
< |
*/ |
451 |
< |
public void testTimedPollWithOffer() throws InterruptedException { |
452 |
< |
final PriorityBlockingQueue q = new PriorityBlockingQueue(2); |
453 |
< |
Thread t = new Thread(new CheckedRunnable() { |
454 |
< |
public void realRun() throws InterruptedException { |
455 |
< |
assertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS)); |
456 |
< |
assertEquals(0, q.poll(MEDIUM_DELAY_MS, MILLISECONDS)); |
457 |
< |
try { |
458 |
< |
q.poll(LONG_DELAY_MS, MILLISECONDS); |
459 |
< |
threadShouldThrow(); |
460 |
< |
} catch (InterruptedException success) {} |
444 |
> |
} catch (InterruptedException success) { |
445 |
> |
assertTrue(millisElapsedSince(t0) < MEDIUM_DELAY_MS); |
446 |
> |
} |
447 |
|
}}); |
448 |
|
|
449 |
< |
t.start(); |
450 |
< |
Thread.sleep(SMALL_DELAY_MS); |
465 |
< |
assertTrue(q.offer(new Integer(0), SHORT_DELAY_MS, MILLISECONDS)); |
449 |
> |
aboutToWait.await(); |
450 |
> |
waitForThreadToEnterWaitState(t, SMALL_DELAY_MS); |
451 |
|
t.interrupt(); |
452 |
< |
t.join(); |
452 |
> |
awaitTermination(t, MEDIUM_DELAY_MS); |
453 |
|
} |
454 |
|
|
470 |
– |
|
455 |
|
/** |
456 |
|
* peek returns next element, or null if empty |
457 |
|
*/ |
458 |
|
public void testPeek() { |
459 |
|
PriorityBlockingQueue q = populatedQueue(SIZE); |
460 |
|
for (int i = 0; i < SIZE; ++i) { |
461 |
< |
assertEquals(i, ((Integer)q.peek()).intValue()); |
462 |
< |
q.poll(); |
461 |
> |
assertEquals(i, q.peek()); |
462 |
> |
assertEquals(i, q.poll()); |
463 |
|
assertTrue(q.peek() == null || |
464 |
< |
i != ((Integer)q.peek()).intValue()); |
464 |
> |
!q.peek().equals(i)); |
465 |
|
} |
466 |
|
assertNull(q.peek()); |
467 |
|
} |
472 |
|
public void testElement() { |
473 |
|
PriorityBlockingQueue q = populatedQueue(SIZE); |
474 |
|
for (int i = 0; i < SIZE; ++i) { |
475 |
< |
assertEquals(i, ((Integer)q.element()).intValue()); |
476 |
< |
q.poll(); |
475 |
> |
assertEquals(i, q.element()); |
476 |
> |
assertEquals(i, q.poll()); |
477 |
|
} |
478 |
|
try { |
479 |
|
q.element(); |
487 |
|
public void testRemove() { |
488 |
|
PriorityBlockingQueue q = populatedQueue(SIZE); |
489 |
|
for (int i = 0; i < SIZE; ++i) { |
490 |
< |
assertEquals(i, ((Integer)q.remove()).intValue()); |
490 |
> |
assertEquals(i, q.remove()); |
491 |
|
} |
492 |
|
try { |
493 |
|
q.remove(); |
501 |
|
public void testRemoveElement() { |
502 |
|
PriorityBlockingQueue q = populatedQueue(SIZE); |
503 |
|
for (int i = 1; i < SIZE; i+=2) { |
504 |
< |
assertTrue(q.remove(new Integer(i))); |
504 |
> |
assertTrue(q.contains(i)); |
505 |
> |
assertTrue(q.remove(i)); |
506 |
> |
assertFalse(q.contains(i)); |
507 |
> |
assertTrue(q.contains(i-1)); |
508 |
|
} |
509 |
|
for (int i = 0; i < SIZE; i+=2) { |
510 |
< |
assertTrue(q.remove(new Integer(i))); |
511 |
< |
assertFalse(q.remove(new Integer(i+1))); |
510 |
> |
assertTrue(q.contains(i)); |
511 |
> |
assertTrue(q.remove(i)); |
512 |
> |
assertFalse(q.contains(i)); |
513 |
> |
assertFalse(q.remove(i+1)); |
514 |
> |
assertFalse(q.contains(i+1)); |
515 |
|
} |
516 |
|
assertTrue(q.isEmpty()); |
517 |
|
} |
593 |
|
} |
594 |
|
|
595 |
|
/** |
596 |
< |
* toArray contains all elements |
596 |
> |
* toArray contains all elements |
597 |
|
*/ |
598 |
|
public void testToArray() throws InterruptedException { |
599 |
|
PriorityBlockingQueue q = populatedQueue(SIZE); |
600 |
|
Object[] o = q.toArray(); |
601 |
|
Arrays.sort(o); |
602 |
|
for (int i = 0; i < o.length; i++) |
603 |
< |
assertEquals(o[i], q.take()); |
603 |
> |
assertSame(o[i], q.take()); |
604 |
|
} |
605 |
|
|
606 |
|
/** |
607 |
|
* toArray(a) contains all elements |
608 |
|
*/ |
609 |
|
public void testToArray2() throws InterruptedException { |
610 |
< |
PriorityBlockingQueue q = populatedQueue(SIZE); |
610 |
> |
PriorityBlockingQueue<Integer> q = populatedQueue(SIZE); |
611 |
|
Integer[] ints = new Integer[SIZE]; |
612 |
< |
ints = (Integer[])q.toArray(ints); |
612 |
> |
Integer[] array = q.toArray(ints); |
613 |
> |
assertSame(ints, array); |
614 |
|
Arrays.sort(ints); |
615 |
|
for (int i = 0; i < ints.length; i++) |
616 |
< |
assertEquals(ints[i], q.take()); |
616 |
> |
assertSame(ints[i], q.take()); |
617 |
|
} |
618 |
|
|
619 |
|
/** |
620 |
< |
* toArray(null) throws NPE |
620 |
> |
* toArray(null) throws NullPointerException |
621 |
|
*/ |
622 |
< |
public void testToArray_BadArg() { |
622 |
> |
public void testToArray_NullArg() { |
623 |
> |
PriorityBlockingQueue q = populatedQueue(SIZE); |
624 |
|
try { |
625 |
< |
PriorityBlockingQueue q = populatedQueue(SIZE); |
634 |
< |
Object o[] = q.toArray(null); |
625 |
> |
q.toArray(null); |
626 |
|
shouldThrow(); |
627 |
|
} catch (NullPointerException success) {} |
628 |
|
} |
629 |
|
|
630 |
|
/** |
631 |
< |
* toArray with incompatible array type throws CCE |
631 |
> |
* toArray(incompatible array type) throws ArrayStoreException |
632 |
|
*/ |
633 |
|
public void testToArray1_BadArg() { |
634 |
+ |
PriorityBlockingQueue q = populatedQueue(SIZE); |
635 |
|
try { |
636 |
< |
PriorityBlockingQueue q = populatedQueue(SIZE); |
645 |
< |
Object o[] = q.toArray(new String[10] ); |
636 |
> |
q.toArray(new String[10]); |
637 |
|
shouldThrow(); |
638 |
|
} catch (ArrayStoreException success) {} |
639 |
|
} |
655 |
|
/** |
656 |
|
* iterator.remove removes current element |
657 |
|
*/ |
658 |
< |
public void testIteratorRemove () { |
658 |
> |
public void testIteratorRemove() { |
659 |
|
final PriorityBlockingQueue q = new PriorityBlockingQueue(3); |
660 |
|
q.add(new Integer(2)); |
661 |
|
q.add(new Integer(1)); |
691 |
|
ExecutorService executor = Executors.newFixedThreadPool(2); |
692 |
|
executor.execute(new CheckedRunnable() { |
693 |
|
public void realRun() throws InterruptedException { |
694 |
< |
threadAssertNull(q.poll()); |
695 |
< |
threadAssertTrue(null != q.poll(MEDIUM_DELAY_MS, MILLISECONDS)); |
696 |
< |
threadAssertTrue(q.isEmpty()); |
694 |
> |
assertNull(q.poll()); |
695 |
> |
assertSame(one, q.poll(MEDIUM_DELAY_MS, MILLISECONDS)); |
696 |
> |
assertTrue(q.isEmpty()); |
697 |
|
}}); |
698 |
|
|
699 |
|
executor.execute(new CheckedRunnable() { |
700 |
|
public void realRun() throws InterruptedException { |
701 |
|
Thread.sleep(SMALL_DELAY_MS); |
702 |
< |
q.put(new Integer(1)); |
702 |
> |
q.put(one); |
703 |
|
}}); |
704 |
|
|
705 |
|
joinPool(executor); |
812 |
|
} |
813 |
|
|
814 |
|
/** |
815 |
< |
* drainTo(c, n) empties first max {n, size} elements of queue into c |
815 |
> |
* drainTo(c, n) empties first min(n, size) elements of queue into c |
816 |
|
*/ |
817 |
|
public void testDrainToN() { |
818 |
|
PriorityBlockingQueue q = new PriorityBlockingQueue(SIZE*2); |
821 |
|
assertTrue(q.offer(new Integer(j))); |
822 |
|
ArrayList l = new ArrayList(); |
823 |
|
q.drainTo(l, i); |
824 |
< |
int k = (i < SIZE)? i : SIZE; |
824 |
> |
int k = (i < SIZE) ? i : SIZE; |
825 |
|
assertEquals(l.size(), k); |
826 |
|
assertEquals(q.size(), SIZE-k); |
827 |
|
for (int j = 0; j < k; ++j) |