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/* |
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* Written by members of JCP JSR-166 Expert Group and released to the |
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* public domain. Use, modify, and redistribute this code in any way |
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* without acknowledgement. Other contributors include Andrew Wright, |
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* Jeffrey Hayes, Pat Fischer, Mike Judd. |
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* Written by Doug Lea with assistance from members of JCP JSR-166 |
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* Expert Group and released to the public domain, as explained at |
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* http://creativecommons.org/licenses/publicdomain |
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* Other contributors include Andrew Wright, Jeffrey Hayes, |
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* Pat Fisher, Mike Judd. |
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*/ |
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import junit.framework.*; |
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public class DelayQueueTest extends JSR166TestCase { |
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public static void main(String[] args) { |
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junit.textui.TestRunner.run (suite()); |
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junit.textui.TestRunner.run (suite()); |
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} |
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|
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public static Test suite() { |
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private static final int NOCAP = Integer.MAX_VALUE; |
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|
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/** |
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* A delayed implmentation for testing. |
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* A delayed implementation for testing. |
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* Most tests use Pseudodelays, where delays are all elapsed |
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* (so, no blocking solely for delays) but are still ordered |
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*/ |
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static class PDelay implements Delayed { |
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*/ |
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static class PDelay implements Delayed { |
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int pseudodelay; |
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PDelay(int i) { pseudodelay = Integer.MIN_VALUE + i; } |
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public int compareTo(Object y) { |
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public int compareTo(PDelay y) { |
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int i = pseudodelay; |
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int j = ((PDelay)y).pseudodelay; |
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if (i < j) return -1; |
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return 0; |
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} |
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|
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public int compareTo(PDelay y) { |
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public int compareTo(Delayed y) { |
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int i = pseudodelay; |
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int j = ((PDelay)y).pseudodelay; |
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if (i < j) return -1; |
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/** |
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* Delayed implementation that actually delays |
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*/ |
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static class NanoDelay implements Delayed { |
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static class NanoDelay implements Delayed { |
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long trigger; |
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NanoDelay(long i) { |
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NanoDelay(long i) { |
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trigger = System.nanoTime() + i; |
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} |
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public int compareTo(Object y) { |
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public int compareTo(NanoDelay y) { |
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long i = trigger; |
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long j = ((NanoDelay)y).trigger; |
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if (i < j) return -1; |
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return 0; |
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} |
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|
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public int compareTo(NanoDelay y) { |
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public int compareTo(Delayed y) { |
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long i = trigger; |
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long j = ((NanoDelay)y).trigger; |
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if (i < j) return -1; |
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private DelayQueue populatedQueue(int n) { |
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DelayQueue q = new DelayQueue(); |
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assertTrue(q.isEmpty()); |
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for(int i = n-1; i >= 0; i-=2) |
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for (int i = n-1; i >= 0; i-=2) |
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assertTrue(q.offer(new PDelay(i))); |
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for(int i = (n & 1); i < n; i+=2) |
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for (int i = (n & 1); i < n; i+=2) |
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assertTrue(q.offer(new PDelay(i))); |
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assertFalse(q.isEmpty()); |
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assertEquals(NOCAP, q.remainingCapacity()); |
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assertEquals(n, q.size()); |
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return q; |
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} |
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|
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|
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/** |
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* A new queue has unbounded capacity |
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*/ |
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DelayQueue q = new DelayQueue(); |
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q.offer(null); |
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shouldThrow(); |
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} catch (NullPointerException success) { } |
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} catch (NullPointerException success) { } |
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} |
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|
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/** |
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* add(null) throws NPE |
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*/ |
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public void testAddNull() { |
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try { |
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DelayQueue q = new DelayQueue(); |
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q.add(null); |
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shouldThrow(); |
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} catch (NullPointerException success) { } |
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} |
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|
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/** |
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} |
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catch (NullPointerException success) {} |
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} |
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|
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|
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/** |
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* addAll(this) throws IAE |
281 |
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*/ |
282 |
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public void testAddAllSelf() { |
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try { |
284 |
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DelayQueue q = populatedQueue(SIZE); |
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q.addAll(q); |
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shouldThrow(); |
287 |
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} |
288 |
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catch (IllegalArgumentException success) {} |
289 |
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} |
290 |
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|
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/** |
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* addAll of a collection with null elements throws NPE |
293 |
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*/ |
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DelayQueue q = new DelayQueue(); |
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q.put(null); |
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shouldThrow(); |
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} |
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} |
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catch (NullPointerException success){ |
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} |
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} |
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} |
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|
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/** |
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} finally { } |
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} |
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}); |
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|
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|
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try { |
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t.start(); |
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Thread.sleep(SMALL_DELAY_MS); |
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} |
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} catch (InterruptedException e){ |
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unexpectedException(); |
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} |
437 |
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} |
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} |
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|
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/** |
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try { |
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q.take(); |
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threadShouldThrow(); |
450 |
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} catch (InterruptedException success){ } |
450 |
> |
} catch (InterruptedException success){ } |
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} |
452 |
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}); |
453 |
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try { |
474 |
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q.take(); |
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threadShouldThrow(); |
476 |
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} catch (InterruptedException success){ |
477 |
< |
} |
477 |
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} |
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}}); |
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t.start(); |
480 |
< |
try { |
481 |
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Thread.sleep(SHORT_DELAY_MS); |
480 |
> |
try { |
481 |
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Thread.sleep(SHORT_DELAY_MS); |
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t.interrupt(); |
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t.join(); |
484 |
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} |
511 |
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assertNull(q.poll(0, TimeUnit.MILLISECONDS)); |
512 |
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} catch (InterruptedException e){ |
513 |
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unexpectedException(); |
514 |
< |
} |
514 |
> |
} |
515 |
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} |
516 |
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|
517 |
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/** |
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assertNull(q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS)); |
527 |
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} catch (InterruptedException e){ |
528 |
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unexpectedException(); |
529 |
< |
} |
529 |
> |
} |
530 |
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} |
531 |
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|
532 |
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/** |
543 |
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} |
544 |
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threadAssertNull(q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS)); |
545 |
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} catch (InterruptedException success){ |
546 |
< |
} |
546 |
> |
} |
547 |
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}}); |
548 |
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t.start(); |
549 |
< |
try { |
550 |
< |
Thread.sleep(SHORT_DELAY_MS); |
549 |
> |
try { |
550 |
> |
Thread.sleep(SHORT_DELAY_MS); |
551 |
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t.interrupt(); |
552 |
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t.join(); |
553 |
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} |
569 |
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q.poll(LONG_DELAY_MS, TimeUnit.MILLISECONDS); |
570 |
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q.poll(LONG_DELAY_MS, TimeUnit.MILLISECONDS); |
571 |
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threadFail("Should block"); |
572 |
< |
} catch (InterruptedException success) { } |
572 |
> |
} catch (InterruptedException success) { } |
573 |
|
} |
574 |
|
}); |
575 |
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try { |
581 |
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} catch (Exception e){ |
582 |
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unexpectedException(); |
583 |
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} |
584 |
< |
} |
584 |
> |
} |
585 |
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|
586 |
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|
587 |
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/** |
592 |
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for (int i = 0; i < SIZE; ++i) { |
593 |
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assertEquals(new PDelay(i), ((PDelay)q.peek())); |
594 |
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q.poll(); |
595 |
< |
assertTrue(q.peek() == null || |
596 |
< |
i != ((PDelay)q.peek()).intValue()); |
595 |
> |
if (q.isEmpty()) |
596 |
> |
assertNull(q.peek()); |
597 |
> |
else |
598 |
> |
assertTrue(i != ((PDelay)q.peek()).intValue()); |
599 |
|
} |
600 |
|
assertNull(q.peek()); |
601 |
|
} |
628 |
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q.remove(); |
629 |
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shouldThrow(); |
630 |
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} catch (NoSuchElementException success){ |
631 |
< |
} |
631 |
> |
} |
632 |
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} |
633 |
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|
634 |
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/** |
645 |
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} |
646 |
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assertTrue(q.isEmpty()); |
647 |
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} |
648 |
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|
648 |
> |
|
649 |
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/** |
650 |
|
* contains(x) reports true when elements added but not yet removed |
651 |
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*/ |
667 |
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assertTrue(q.isEmpty()); |
668 |
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assertEquals(0, q.size()); |
669 |
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assertEquals(NOCAP, q.remainingCapacity()); |
670 |
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q.add(new PDelay(1)); |
670 |
> |
PDelay x = new PDelay(1); |
671 |
> |
q.add(x); |
672 |
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assertFalse(q.isEmpty()); |
673 |
+ |
assertTrue(q.contains(x)); |
674 |
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q.clear(); |
675 |
|
assertTrue(q.isEmpty()); |
676 |
|
} |
732 |
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Object[] o = q.toArray(); |
733 |
|
Arrays.sort(o); |
734 |
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try { |
735 |
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for(int i = 0; i < o.length; i++) |
735 |
> |
for (int i = 0; i < o.length; i++) |
736 |
|
assertEquals(o[i], q.take()); |
737 |
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} catch (InterruptedException e){ |
738 |
|
unexpectedException(); |
739 |
< |
} |
739 |
> |
} |
740 |
|
} |
741 |
|
|
742 |
|
/** |
748 |
|
ints = (PDelay[])q.toArray(ints); |
749 |
|
Arrays.sort(ints); |
750 |
|
try { |
751 |
< |
for(int i = 0; i < ints.length; i++) |
751 |
> |
for (int i = 0; i < ints.length; i++) |
752 |
|
assertEquals(ints[i], q.take()); |
753 |
|
} catch (InterruptedException e){ |
754 |
|
unexpectedException(); |
755 |
< |
} |
755 |
> |
} |
756 |
|
} |
757 |
< |
|
757 |
> |
|
758 |
> |
|
759 |
> |
/** |
760 |
> |
* toArray(null) throws NPE |
761 |
> |
*/ |
762 |
> |
public void testToArray_BadArg() { |
763 |
> |
try { |
764 |
> |
DelayQueue q = populatedQueue(SIZE); |
765 |
> |
Object o[] = q.toArray(null); |
766 |
> |
shouldThrow(); |
767 |
> |
} catch (NullPointerException success){} |
768 |
> |
} |
769 |
> |
|
770 |
> |
/** |
771 |
> |
* toArray with incompatible array type throws CCE |
772 |
> |
*/ |
773 |
> |
public void testToArray1_BadArg() { |
774 |
> |
try { |
775 |
> |
DelayQueue q = populatedQueue(SIZE); |
776 |
> |
Object o[] = q.toArray(new String[10] ); |
777 |
> |
shouldThrow(); |
778 |
> |
} catch (ArrayStoreException success){} |
779 |
> |
} |
780 |
> |
|
781 |
|
/** |
782 |
|
* iterator iterates through all elements |
783 |
|
*/ |
785 |
|
DelayQueue q = populatedQueue(SIZE); |
786 |
|
int i = 0; |
787 |
|
Iterator it = q.iterator(); |
788 |
< |
while(it.hasNext()) { |
788 |
> |
while (it.hasNext()) { |
789 |
|
assertTrue(q.contains(it.next())); |
790 |
|
++i; |
791 |
|
} |
819 |
|
for (int i = 0; i < SIZE; ++i) { |
820 |
|
assertTrue(s.indexOf(String.valueOf(Integer.MIN_VALUE+i)) >= 0); |
821 |
|
} |
822 |
< |
} |
822 |
> |
} |
823 |
|
|
824 |
|
/** |
825 |
|
* offer transfers elements across Executor tasks |
857 |
|
|
858 |
|
|
859 |
|
/** |
860 |
< |
* Dekayed actions do not occur until their delay elapses |
860 |
> |
* Delayed actions do not occur until their delay elapses |
861 |
|
*/ |
862 |
|
public void testDelay() { |
863 |
|
DelayQueue q = new DelayQueue(); |
875 |
|
NanoDelay e = (NanoDelay)(q.take()); |
876 |
|
long tt = e.getTriggerTime(); |
877 |
|
assertTrue(tt <= System.nanoTime()); |
878 |
< |
if (i != 0) |
878 |
> |
if (i != 0) |
879 |
|
assertTrue(tt >= last); |
880 |
|
last = tt; |
881 |
|
} |
882 |
|
} |
883 |
< |
catch(InterruptedException ie) { |
883 |
> |
catch (InterruptedException ie) { |
884 |
> |
unexpectedException(); |
885 |
> |
} |
886 |
> |
} |
887 |
> |
|
888 |
> |
/** |
889 |
> |
* peek of a non-empty queue returns non-null even if not expired |
890 |
> |
*/ |
891 |
> |
public void testPeekDelayed() { |
892 |
> |
DelayQueue q = new DelayQueue(); |
893 |
> |
q.add(new NanoDelay(Long.MAX_VALUE)); |
894 |
> |
assert(q.peek() != null); |
895 |
> |
} |
896 |
> |
|
897 |
> |
|
898 |
> |
/** |
899 |
> |
* poll of a non-empty queue returns null if no expired elements. |
900 |
> |
*/ |
901 |
> |
public void testPollDelayed() { |
902 |
> |
DelayQueue q = new DelayQueue(); |
903 |
> |
q.add(new NanoDelay(Long.MAX_VALUE)); |
904 |
> |
assertNull(q.poll()); |
905 |
> |
} |
906 |
> |
|
907 |
> |
/** |
908 |
> |
* timed poll of a non-empty queue returns null if no expired elements. |
909 |
> |
*/ |
910 |
> |
public void testTimedPollDelayed() { |
911 |
> |
DelayQueue q = new DelayQueue(); |
912 |
> |
q.add(new NanoDelay(LONG_DELAY_MS * 1000000L)); |
913 |
> |
try { |
914 |
> |
assertNull(q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS)); |
915 |
> |
} catch (Exception ex) { |
916 |
> |
unexpectedException(); |
917 |
> |
} |
918 |
> |
} |
919 |
> |
|
920 |
> |
/** |
921 |
> |
* drainTo(null) throws NPE |
922 |
> |
*/ |
923 |
> |
public void testDrainToNull() { |
924 |
> |
DelayQueue q = populatedQueue(SIZE); |
925 |
> |
try { |
926 |
> |
q.drainTo(null); |
927 |
> |
shouldThrow(); |
928 |
> |
} catch (NullPointerException success) { |
929 |
> |
} |
930 |
> |
} |
931 |
> |
|
932 |
> |
/** |
933 |
> |
* drainTo(this) throws IAE |
934 |
> |
*/ |
935 |
> |
public void testDrainToSelf() { |
936 |
> |
DelayQueue q = populatedQueue(SIZE); |
937 |
> |
try { |
938 |
> |
q.drainTo(q); |
939 |
> |
shouldThrow(); |
940 |
> |
} catch (IllegalArgumentException success) { |
941 |
> |
} |
942 |
> |
} |
943 |
> |
|
944 |
> |
/** |
945 |
> |
* drainTo(c) empties queue into another collection c |
946 |
> |
*/ |
947 |
> |
public void testDrainTo() { |
948 |
> |
DelayQueue q = new DelayQueue(); |
949 |
> |
PDelay[] elems = new PDelay[SIZE]; |
950 |
> |
for (int i = 0; i < SIZE; ++i) { |
951 |
> |
elems[i] = new PDelay(i); |
952 |
> |
q.add(elems[i]); |
953 |
> |
} |
954 |
> |
ArrayList l = new ArrayList(); |
955 |
> |
q.drainTo(l); |
956 |
> |
assertEquals(q.size(), 0); |
957 |
> |
for (int i = 0; i < SIZE; ++i) |
958 |
> |
assertEquals(l.get(i), elems[i]); |
959 |
> |
q.add(elems[0]); |
960 |
> |
q.add(elems[1]); |
961 |
> |
assertFalse(q.isEmpty()); |
962 |
> |
assertTrue(q.contains(elems[0])); |
963 |
> |
assertTrue(q.contains(elems[1])); |
964 |
> |
l.clear(); |
965 |
> |
q.drainTo(l); |
966 |
> |
assertEquals(q.size(), 0); |
967 |
> |
assertEquals(l.size(), 2); |
968 |
> |
for (int i = 0; i < 2; ++i) |
969 |
> |
assertEquals(l.get(i), elems[i]); |
970 |
> |
} |
971 |
> |
|
972 |
> |
/** |
973 |
> |
* drainTo empties queue |
974 |
> |
*/ |
975 |
> |
public void testDrainToWithActivePut() { |
976 |
> |
final DelayQueue q = populatedQueue(SIZE); |
977 |
> |
Thread t = new Thread(new Runnable() { |
978 |
> |
public void run() { |
979 |
> |
q.put(new PDelay(SIZE+1)); |
980 |
> |
} |
981 |
> |
}); |
982 |
> |
try { |
983 |
> |
t.start(); |
984 |
> |
ArrayList l = new ArrayList(); |
985 |
> |
q.drainTo(l); |
986 |
> |
assertTrue(l.size() >= SIZE); |
987 |
> |
t.join(); |
988 |
> |
assertTrue(q.size() + l.size() >= SIZE); |
989 |
> |
} catch (Exception e){ |
990 |
|
unexpectedException(); |
991 |
|
} |
992 |
|
} |
993 |
|
|
994 |
+ |
/** |
995 |
+ |
* drainTo(null, n) throws NPE |
996 |
+ |
*/ |
997 |
+ |
public void testDrainToNullN() { |
998 |
+ |
DelayQueue q = populatedQueue(SIZE); |
999 |
+ |
try { |
1000 |
+ |
q.drainTo(null, 0); |
1001 |
+ |
shouldThrow(); |
1002 |
+ |
} catch (NullPointerException success) { |
1003 |
+ |
} |
1004 |
+ |
} |
1005 |
+ |
|
1006 |
+ |
/** |
1007 |
+ |
* drainTo(this, n) throws IAE |
1008 |
+ |
*/ |
1009 |
+ |
public void testDrainToSelfN() { |
1010 |
+ |
DelayQueue q = populatedQueue(SIZE); |
1011 |
+ |
try { |
1012 |
+ |
q.drainTo(q, 0); |
1013 |
+ |
shouldThrow(); |
1014 |
+ |
} catch (IllegalArgumentException success) { |
1015 |
+ |
} |
1016 |
+ |
} |
1017 |
+ |
|
1018 |
+ |
/** |
1019 |
+ |
* drainTo(c, n) empties first max {n, size} elements of queue into c |
1020 |
+ |
*/ |
1021 |
+ |
public void testDrainToN() { |
1022 |
+ |
for (int i = 0; i < SIZE + 2; ++i) { |
1023 |
+ |
DelayQueue q = populatedQueue(SIZE); |
1024 |
+ |
ArrayList l = new ArrayList(); |
1025 |
+ |
q.drainTo(l, i); |
1026 |
+ |
int k = (i < SIZE)? i : SIZE; |
1027 |
+ |
assertEquals(q.size(), SIZE-k); |
1028 |
+ |
assertEquals(l.size(), k); |
1029 |
+ |
} |
1030 |
+ |
} |
1031 |
+ |
|
1032 |
+ |
|
1033 |
|
} |