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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 LinkedBlockingQueueTest extends JSR166TestCase { |
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|
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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() { |
29 |
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private LinkedBlockingQueue populatedQueue(int n) { |
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LinkedBlockingQueue q = new LinkedBlockingQueue(n); |
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assertTrue(q.isEmpty()); |
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for(int i = 0; i < n; i++) |
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for (int i = 0; i < n; i++) |
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assertTrue(q.offer(new Integer(i))); |
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assertFalse(q.isEmpty()); |
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assertEquals(0, 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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|
40 |
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/** |
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* A new queue has the indicated capacity, or Integer.MAX_VALUE if |
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* none given |
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LinkedBlockingQueue q = new LinkedBlockingQueue(1); |
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q.offer(null); |
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shouldThrow(); |
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} catch (NullPointerException success) { } |
152 |
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} catch (NullPointerException success) { } |
153 |
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} |
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|
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/** |
156 |
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* add(null) throws NPE |
157 |
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*/ |
158 |
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public void testAddNull() { |
159 |
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try { |
160 |
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LinkedBlockingQueue q = new LinkedBlockingQueue(1); |
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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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/** |
183 |
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} |
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assertEquals(0, q.remainingCapacity()); |
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q.add(new Integer(SIZE)); |
186 |
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} catch (IllegalStateException success){ |
187 |
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} |
186 |
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} catch (IllegalStateException success) { |
187 |
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} |
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} |
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|
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/** |
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} |
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catch (NullPointerException success) {} |
200 |
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} |
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|
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/** |
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* addAll(this) throws IAE |
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*/ |
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public void testAddAllSelf() { |
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try { |
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LinkedBlockingQueue q = populatedQueue(SIZE); |
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q.addAll(q); |
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shouldThrow(); |
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} |
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catch (IllegalArgumentException success) {} |
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} |
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|
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/** |
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* addAll of a collection with null elements throws NPE |
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*/ |
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LinkedBlockingQueue q = new LinkedBlockingQueue(SIZE); |
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q.put(null); |
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shouldThrow(); |
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} |
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catch (NullPointerException success){ |
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} |
281 |
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} |
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catch (NullPointerException success) { |
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} |
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catch (InterruptedException ie) { |
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unexpectedException(); |
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} |
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} |
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q.put(new Integer(SIZE)); |
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threadShouldThrow(); |
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} catch (InterruptedException ie){ |
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} catch (InterruptedException ie) { |
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threadAssertEquals(added, SIZE); |
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} |
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} |
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}}); |
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t.start(); |
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try { |
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Thread.sleep(SHORT_DELAY_MS); |
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try { |
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Thread.sleep(SHORT_DELAY_MS); |
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t.interrupt(); |
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t.join(); |
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} |
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q.put(new Object()); |
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++added; |
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threadShouldThrow(); |
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} catch (InterruptedException e){ |
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} catch (InterruptedException e) { |
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threadAssertTrue(added >= 2); |
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} |
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} |
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q.take(); |
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t.interrupt(); |
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t.join(); |
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} catch (Exception e){ |
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} catch (Exception e) { |
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unexpectedException(); |
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} |
369 |
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} |
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threadAssertFalse(q.offer(new Object(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS)); |
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q.offer(new Object(), LONG_DELAY_MS, TimeUnit.MILLISECONDS); |
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threadShouldThrow(); |
384 |
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} catch (InterruptedException success){} |
384 |
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} catch (InterruptedException success) {} |
385 |
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} |
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}); |
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|
387 |
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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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t.interrupt(); |
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t.join(); |
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} catch (Exception e){ |
393 |
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} catch (Exception e) { |
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unexpectedException(); |
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} |
396 |
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} |
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for (int i = 0; i < SIZE; ++i) { |
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assertEquals(i, ((Integer)q.take()).intValue()); |
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} |
407 |
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} catch (InterruptedException e){ |
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} catch (InterruptedException e) { |
408 |
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unexpectedException(); |
409 |
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} |
409 |
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} |
410 |
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} |
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|
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/** |
419 |
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try { |
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q.take(); |
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threadShouldThrow(); |
422 |
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} catch (InterruptedException success){ } |
422 |
> |
} catch (InterruptedException success) { } |
423 |
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} |
424 |
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}); |
425 |
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try { |
427 |
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Thread.sleep(SHORT_DELAY_MS); |
428 |
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t.interrupt(); |
429 |
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t.join(); |
430 |
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} catch (Exception e){ |
430 |
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} catch (Exception e) { |
431 |
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unexpectedException(); |
432 |
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} |
433 |
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} |
445 |
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} |
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q.take(); |
447 |
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threadShouldThrow(); |
448 |
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} catch (InterruptedException success){ |
449 |
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} |
448 |
> |
} catch (InterruptedException success) { |
449 |
> |
} |
450 |
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}}); |
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t.start(); |
452 |
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try { |
453 |
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Thread.sleep(SHORT_DELAY_MS); |
452 |
> |
try { |
453 |
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Thread.sleep(SHORT_DELAY_MS); |
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t.interrupt(); |
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t.join(); |
456 |
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} |
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assertEquals(i, ((Integer)q.poll(0, TimeUnit.MILLISECONDS)).intValue()); |
482 |
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} |
483 |
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assertNull(q.poll(0, TimeUnit.MILLISECONDS)); |
484 |
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} catch (InterruptedException e){ |
484 |
> |
} catch (InterruptedException e) { |
485 |
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unexpectedException(); |
486 |
< |
} |
486 |
> |
} |
487 |
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} |
488 |
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|
489 |
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/** |
496 |
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assertEquals(i, ((Integer)q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS)).intValue()); |
497 |
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} |
498 |
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assertNull(q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS)); |
499 |
< |
} catch (InterruptedException e){ |
499 |
> |
} catch (InterruptedException e) { |
500 |
|
unexpectedException(); |
501 |
< |
} |
501 |
> |
} |
502 |
|
} |
503 |
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|
504 |
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/** |
514 |
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threadAssertEquals(i, ((Integer)q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS)).intValue()); |
515 |
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} |
516 |
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threadAssertNull(q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS)); |
517 |
< |
} catch (InterruptedException success){ |
518 |
< |
} |
517 |
> |
} catch (InterruptedException success) { |
518 |
> |
} |
519 |
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}}); |
520 |
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t.start(); |
521 |
< |
try { |
522 |
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Thread.sleep(SHORT_DELAY_MS); |
521 |
> |
try { |
522 |
> |
Thread.sleep(SHORT_DELAY_MS); |
523 |
|
t.interrupt(); |
524 |
|
t.join(); |
525 |
|
} |
541 |
|
q.poll(LONG_DELAY_MS, TimeUnit.MILLISECONDS); |
542 |
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q.poll(LONG_DELAY_MS, TimeUnit.MILLISECONDS); |
543 |
|
threadShouldThrow(); |
544 |
< |
} catch (InterruptedException success) { } |
544 |
> |
} catch (InterruptedException success) { } |
545 |
|
} |
546 |
|
}); |
547 |
|
try { |
550 |
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assertTrue(q.offer(zero, SHORT_DELAY_MS, TimeUnit.MILLISECONDS)); |
551 |
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t.interrupt(); |
552 |
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t.join(); |
553 |
< |
} catch (Exception e){ |
553 |
> |
} catch (Exception e) { |
554 |
|
unexpectedException(); |
555 |
|
} |
556 |
< |
} |
556 |
> |
} |
557 |
|
|
558 |
|
/** |
559 |
|
* peek returns next element, or null if empty |
596 |
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try { |
597 |
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q.remove(); |
598 |
|
shouldThrow(); |
599 |
< |
} catch (NoSuchElementException success){ |
600 |
< |
} |
599 |
> |
} catch (NoSuchElementException success) { |
600 |
> |
} |
601 |
|
} |
602 |
|
|
603 |
|
/** |
614 |
|
} |
615 |
|
assertTrue(q.isEmpty()); |
616 |
|
} |
617 |
< |
|
617 |
> |
|
618 |
> |
/** |
619 |
> |
* An add following remove(x) succeeds |
620 |
> |
*/ |
621 |
> |
public void testRemoveElementAndAdd() { |
622 |
> |
try { |
623 |
> |
LinkedBlockingQueue q = new LinkedBlockingQueue(); |
624 |
> |
assertTrue(q.add(new Integer(1))); |
625 |
> |
assertTrue(q.add(new Integer(2))); |
626 |
> |
assertTrue(q.remove(new Integer(1))); |
627 |
> |
assertTrue(q.remove(new Integer(2))); |
628 |
> |
assertTrue(q.add(new Integer(3))); |
629 |
> |
assertTrue(q.take() != null); |
630 |
> |
} catch (Exception e) { |
631 |
> |
unexpectedException(); |
632 |
> |
} |
633 |
> |
} |
634 |
> |
|
635 |
|
/** |
636 |
|
* contains(x) reports true when elements added but not yet removed |
637 |
|
*/ |
655 |
|
assertEquals(SIZE, q.remainingCapacity()); |
656 |
|
q.add(one); |
657 |
|
assertFalse(q.isEmpty()); |
658 |
+ |
assertTrue(q.contains(one)); |
659 |
|
q.clear(); |
660 |
|
assertTrue(q.isEmpty()); |
661 |
|
} |
716 |
|
LinkedBlockingQueue q = populatedQueue(SIZE); |
717 |
|
Object[] o = q.toArray(); |
718 |
|
try { |
719 |
< |
for(int i = 0; i < o.length; i++) |
719 |
> |
for (int i = 0; i < o.length; i++) |
720 |
|
assertEquals(o[i], q.take()); |
721 |
< |
} catch (InterruptedException e){ |
721 |
> |
} catch (InterruptedException e) { |
722 |
|
unexpectedException(); |
723 |
< |
} |
723 |
> |
} |
724 |
|
} |
725 |
|
|
726 |
|
/** |
731 |
|
Integer[] ints = new Integer[SIZE]; |
732 |
|
ints = (Integer[])q.toArray(ints); |
733 |
|
try { |
734 |
< |
for(int i = 0; i < ints.length; i++) |
734 |
> |
for (int i = 0; i < ints.length; i++) |
735 |
|
assertEquals(ints[i], q.take()); |
736 |
< |
} catch (InterruptedException e){ |
736 |
> |
} catch (InterruptedException e) { |
737 |
|
unexpectedException(); |
738 |
< |
} |
738 |
> |
} |
739 |
> |
} |
740 |
> |
|
741 |
> |
/** |
742 |
> |
* toArray(null) throws NPE |
743 |
> |
*/ |
744 |
> |
public void testToArray_BadArg() { |
745 |
> |
try { |
746 |
> |
LinkedBlockingQueue q = populatedQueue(SIZE); |
747 |
> |
Object o[] = q.toArray(null); |
748 |
> |
shouldThrow(); |
749 |
> |
} catch (NullPointerException success) {} |
750 |
> |
} |
751 |
> |
|
752 |
> |
/** |
753 |
> |
* toArray with incompatible array type throws CCE |
754 |
> |
*/ |
755 |
> |
public void testToArray1_BadArg() { |
756 |
> |
try { |
757 |
> |
LinkedBlockingQueue q = populatedQueue(SIZE); |
758 |
> |
Object o[] = q.toArray(new String[10] ); |
759 |
> |
shouldThrow(); |
760 |
> |
} catch (ArrayStoreException success) {} |
761 |
|
} |
762 |
< |
|
762 |
> |
|
763 |
> |
|
764 |
|
/** |
765 |
|
* iterator iterates through all elements |
766 |
|
*/ |
768 |
|
LinkedBlockingQueue q = populatedQueue(SIZE); |
769 |
|
Iterator it = q.iterator(); |
770 |
|
try { |
771 |
< |
while(it.hasNext()){ |
771 |
> |
while (it.hasNext()) { |
772 |
|
assertEquals(it.next(), q.take()); |
773 |
|
} |
774 |
< |
} catch (InterruptedException e){ |
774 |
> |
} catch (InterruptedException e) { |
775 |
|
unexpectedException(); |
776 |
< |
} |
776 |
> |
} |
777 |
|
} |
778 |
|
|
779 |
|
/** |
788 |
|
Iterator it = q.iterator(); |
789 |
|
it.next(); |
790 |
|
it.remove(); |
791 |
< |
|
791 |
> |
|
792 |
|
it = q.iterator(); |
793 |
|
assertEquals(it.next(), one); |
794 |
|
assertEquals(it.next(), three); |
843 |
|
for (int i = 0; i < SIZE; ++i) { |
844 |
|
assertTrue(s.indexOf(String.valueOf(i)) >= 0); |
845 |
|
} |
846 |
< |
} |
846 |
> |
} |
847 |
|
|
848 |
|
|
849 |
|
/** |
878 |
|
} |
879 |
|
} |
880 |
|
}); |
881 |
< |
|
881 |
> |
|
882 |
|
joinPool(executor); |
883 |
|
} |
884 |
|
|
912 |
|
} |
913 |
|
} |
914 |
|
}); |
915 |
< |
|
915 |
> |
|
916 |
|
joinPool(executor); |
917 |
|
} |
918 |
|
|
932 |
|
ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin)); |
933 |
|
LinkedBlockingQueue r = (LinkedBlockingQueue)in.readObject(); |
934 |
|
assertEquals(q.size(), r.size()); |
935 |
< |
while (!q.isEmpty()) |
935 |
> |
while (!q.isEmpty()) |
936 |
|
assertEquals(q.remove(), r.remove()); |
937 |
< |
} catch(Exception e){ |
937 |
> |
} catch (Exception e) { |
938 |
|
unexpectedException(); |
939 |
|
} |
940 |
|
} |
941 |
|
|
942 |
+ |
/** |
943 |
+ |
* drainTo(null) throws NPE |
944 |
+ |
*/ |
945 |
+ |
public void testDrainToNull() { |
946 |
+ |
LinkedBlockingQueue q = populatedQueue(SIZE); |
947 |
+ |
try { |
948 |
+ |
q.drainTo(null); |
949 |
+ |
shouldThrow(); |
950 |
+ |
} catch (NullPointerException success) { |
951 |
+ |
} |
952 |
+ |
} |
953 |
+ |
|
954 |
+ |
/** |
955 |
+ |
* drainTo(this) throws IAE |
956 |
+ |
*/ |
957 |
+ |
public void testDrainToSelf() { |
958 |
+ |
LinkedBlockingQueue q = populatedQueue(SIZE); |
959 |
+ |
try { |
960 |
+ |
q.drainTo(q); |
961 |
+ |
shouldThrow(); |
962 |
+ |
} catch (IllegalArgumentException success) { |
963 |
+ |
} |
964 |
+ |
} |
965 |
+ |
|
966 |
+ |
/** |
967 |
+ |
* drainTo(c) empties queue into another collection c |
968 |
+ |
*/ |
969 |
+ |
public void testDrainTo() { |
970 |
+ |
LinkedBlockingQueue q = populatedQueue(SIZE); |
971 |
+ |
ArrayList l = new ArrayList(); |
972 |
+ |
q.drainTo(l); |
973 |
+ |
assertEquals(q.size(), 0); |
974 |
+ |
assertEquals(l.size(), SIZE); |
975 |
+ |
for (int i = 0; i < SIZE; ++i) |
976 |
+ |
assertEquals(l.get(i), new Integer(i)); |
977 |
+ |
q.add(zero); |
978 |
+ |
q.add(one); |
979 |
+ |
assertFalse(q.isEmpty()); |
980 |
+ |
assertTrue(q.contains(zero)); |
981 |
+ |
assertTrue(q.contains(one)); |
982 |
+ |
l.clear(); |
983 |
+ |
q.drainTo(l); |
984 |
+ |
assertEquals(q.size(), 0); |
985 |
+ |
assertEquals(l.size(), 2); |
986 |
+ |
for (int i = 0; i < 2; ++i) |
987 |
+ |
assertEquals(l.get(i), new Integer(i)); |
988 |
+ |
} |
989 |
+ |
|
990 |
+ |
/** |
991 |
+ |
* drainTo empties full queue, unblocking a waiting put. |
992 |
+ |
*/ |
993 |
+ |
public void testDrainToWithActivePut() { |
994 |
+ |
final LinkedBlockingQueue q = populatedQueue(SIZE); |
995 |
+ |
Thread t = new Thread(new Runnable() { |
996 |
+ |
public void run() { |
997 |
+ |
try { |
998 |
+ |
q.put(new Integer(SIZE+1)); |
999 |
+ |
} catch (InterruptedException ie) { |
1000 |
+ |
threadUnexpectedException(); |
1001 |
+ |
} |
1002 |
+ |
} |
1003 |
+ |
}); |
1004 |
+ |
try { |
1005 |
+ |
t.start(); |
1006 |
+ |
ArrayList l = new ArrayList(); |
1007 |
+ |
q.drainTo(l); |
1008 |
+ |
assertTrue(l.size() >= SIZE); |
1009 |
+ |
for (int i = 0; i < SIZE; ++i) |
1010 |
+ |
assertEquals(l.get(i), new Integer(i)); |
1011 |
+ |
t.join(); |
1012 |
+ |
assertTrue(q.size() + l.size() >= SIZE); |
1013 |
+ |
} catch (Exception e) { |
1014 |
+ |
unexpectedException(); |
1015 |
+ |
} |
1016 |
+ |
} |
1017 |
+ |
|
1018 |
+ |
/** |
1019 |
+ |
* drainTo(null, n) throws NPE |
1020 |
+ |
*/ |
1021 |
+ |
public void testDrainToNullN() { |
1022 |
+ |
LinkedBlockingQueue q = populatedQueue(SIZE); |
1023 |
+ |
try { |
1024 |
+ |
q.drainTo(null, 0); |
1025 |
+ |
shouldThrow(); |
1026 |
+ |
} catch (NullPointerException success) { |
1027 |
+ |
} |
1028 |
+ |
} |
1029 |
+ |
|
1030 |
+ |
/** |
1031 |
+ |
* drainTo(this, n) throws IAE |
1032 |
+ |
*/ |
1033 |
+ |
public void testDrainToSelfN() { |
1034 |
+ |
LinkedBlockingQueue q = populatedQueue(SIZE); |
1035 |
+ |
try { |
1036 |
+ |
q.drainTo(q, 0); |
1037 |
+ |
shouldThrow(); |
1038 |
+ |
} catch (IllegalArgumentException success) { |
1039 |
+ |
} |
1040 |
+ |
} |
1041 |
+ |
|
1042 |
+ |
/** |
1043 |
+ |
* drainTo(c, n) empties first max {n, size} elements of queue into c |
1044 |
+ |
*/ |
1045 |
+ |
public void testDrainToN() { |
1046 |
+ |
LinkedBlockingQueue q = new LinkedBlockingQueue(); |
1047 |
+ |
for (int i = 0; i < SIZE + 2; ++i) { |
1048 |
+ |
for (int j = 0; j < SIZE; j++) |
1049 |
+ |
assertTrue(q.offer(new Integer(j))); |
1050 |
+ |
ArrayList l = new ArrayList(); |
1051 |
+ |
q.drainTo(l, i); |
1052 |
+ |
int k = (i < SIZE)? i : SIZE; |
1053 |
+ |
assertEquals(l.size(), k); |
1054 |
+ |
assertEquals(q.size(), SIZE-k); |
1055 |
+ |
for (int j = 0; j < k; ++j) |
1056 |
+ |
assertEquals(l.get(j), new Integer(j)); |
1057 |
+ |
while (q.poll() != null) ; |
1058 |
+ |
} |
1059 |
+ |
} |
1060 |
+ |
|
1061 |
|
} |