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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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public static Test suite() { |
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private static final int NOCAP = Integer.MAX_VALUE; |
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/** |
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* A delayed implmentation for testing. |
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* Most Q/BQ tests use Pseudodelays, where delays are all elapsed |
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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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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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public void testConstructor1() { |
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assertEquals(NOCAP, new DelayQueue().remainingCapacity()); |
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} |
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|
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/** |
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* |
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* Initializing from null Collection throws NPE |
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*/ |
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public void testConstructor3() { |
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try { |
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} |
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|
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/** |
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* |
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* Initializing from Collection of null elements throws NPE |
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*/ |
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public void testConstructor4() { |
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try { |
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} |
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|
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/** |
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* |
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* Initializing from Collection with some null elements throws NPE |
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*/ |
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public void testConstructor5() { |
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try { |
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} |
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|
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/** |
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* |
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* Queue contains all elements of collection used to initialize |
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*/ |
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public void testConstructor6() { |
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try { |
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} |
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|
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/** |
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* |
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* isEmpty is true before add, false after |
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*/ |
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public void testEmpty() { |
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DelayQueue q = new DelayQueue(); |
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} |
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/** |
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* |
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* remainingCapacity does not change when elementa added or removed, |
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* but size does |
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*/ |
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public void testRemainingCapacity() { |
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DelayQueue q = populatedQueue(SIZE); |
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} |
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|
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/** |
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* |
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* offer(null) throws NPE |
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*/ |
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public void testOfferNull() { |
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try { |
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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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* |
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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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* offer non-null succeeds |
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*/ |
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public void testOffer() { |
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DelayQueue q = new DelayQueue(); |
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} |
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|
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/** |
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< |
* |
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> |
* add succeeds |
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*/ |
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public void testAdd() { |
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DelayQueue q = new DelayQueue(); |
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} |
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|
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/** |
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< |
* |
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> |
* addAll(null) throws NPE |
268 |
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*/ |
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public void testAddAll1() { |
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try { |
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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 |
+ |
*/ |
282 |
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public void testAddAllSelf() { |
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try { |
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DelayQueue q = populatedQueue(SIZE); |
285 |
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q.addAll(q); |
286 |
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shouldThrow(); |
287 |
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} |
288 |
+ |
catch (IllegalArgumentException success) {} |
289 |
+ |
} |
290 |
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|
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/** |
292 |
< |
* |
292 |
> |
* addAll of a collection with null elements throws NPE |
293 |
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*/ |
294 |
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public void testAddAll2() { |
295 |
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try { |
301 |
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catch (NullPointerException success) {} |
302 |
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} |
303 |
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/** |
304 |
< |
* |
304 |
> |
* addAll of a collection with any null elements throws NPE after |
305 |
> |
* possibly adding some elements |
306 |
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*/ |
307 |
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public void testAddAll3() { |
308 |
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try { |
317 |
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} |
318 |
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|
319 |
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/** |
320 |
< |
* |
320 |
> |
* Queue contains all elements of successful addAll |
321 |
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*/ |
322 |
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public void testAddAll5() { |
323 |
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try { |
335 |
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} |
336 |
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|
337 |
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/** |
338 |
< |
* |
338 |
> |
* put(null) throws NPE |
339 |
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*/ |
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public void testPutNull() { |
341 |
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try { |
342 |
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DelayQueue q = new DelayQueue(); |
343 |
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q.put(null); |
344 |
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shouldThrow(); |
345 |
< |
} |
345 |
> |
} |
346 |
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catch (NullPointerException success){ |
347 |
< |
} |
347 |
> |
} |
348 |
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} |
349 |
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|
350 |
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/** |
351 |
< |
* |
351 |
> |
* all elements successfully put are contained |
352 |
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*/ |
353 |
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public void testPut() { |
354 |
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try { |
365 |
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} |
366 |
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|
367 |
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/** |
368 |
< |
* |
368 |
> |
* put doesn't block waiting for take |
369 |
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*/ |
370 |
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public void testPutWithTake() { |
371 |
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final DelayQueue q = new DelayQueue(); |
398 |
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} |
399 |
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|
400 |
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/** |
401 |
< |
* |
401 |
> |
* timed offer does not time out |
402 |
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*/ |
403 |
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public void testTimedOffer() { |
404 |
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final DelayQueue q = new DelayQueue(); |
412 |
|
} finally { } |
413 |
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} |
414 |
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}); |
415 |
< |
|
415 |
> |
|
416 |
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try { |
417 |
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t.start(); |
418 |
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Thread.sleep(SMALL_DELAY_MS); |
424 |
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} |
425 |
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|
426 |
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/** |
427 |
< |
* |
427 |
> |
* take retrieves elements in priority order |
428 |
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*/ |
429 |
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public void testTake() { |
430 |
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try { |
434 |
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} |
435 |
|
} catch (InterruptedException e){ |
436 |
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unexpectedException(); |
437 |
< |
} |
437 |
> |
} |
438 |
|
} |
439 |
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|
440 |
|
/** |
441 |
< |
* |
441 |
> |
* take blocks interruptibly when empty |
442 |
|
*/ |
443 |
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public void testTakeFromEmpty() { |
444 |
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final DelayQueue q = new DelayQueue(); |
447 |
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try { |
448 |
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q.take(); |
449 |
|
threadShouldThrow(); |
450 |
< |
} catch (InterruptedException success){ } |
450 |
> |
} catch (InterruptedException success){ } |
451 |
|
} |
452 |
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}); |
453 |
|
try { |
461 |
|
} |
462 |
|
|
463 |
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/** |
464 |
< |
* |
464 |
> |
* Take removes existing elements until empty, then blocks interruptibly |
465 |
|
*/ |
466 |
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public void testBlockingTake() { |
467 |
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Thread t = new Thread(new Runnable() { |
474 |
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q.take(); |
475 |
|
threadShouldThrow(); |
476 |
|
} catch (InterruptedException success){ |
477 |
< |
} |
477 |
> |
} |
478 |
|
}}); |
479 |
|
t.start(); |
480 |
< |
try { |
481 |
< |
Thread.sleep(SHORT_DELAY_MS); |
480 |
> |
try { |
481 |
> |
Thread.sleep(SHORT_DELAY_MS); |
482 |
|
t.interrupt(); |
483 |
|
t.join(); |
484 |
|
} |
489 |
|
|
490 |
|
|
491 |
|
/** |
492 |
< |
* |
492 |
> |
* poll succeeds unless empty |
493 |
|
*/ |
494 |
|
public void testPoll() { |
495 |
|
DelayQueue q = populatedQueue(SIZE); |
500 |
|
} |
501 |
|
|
502 |
|
/** |
503 |
< |
* |
503 |
> |
* timed pool with zero timeout succeeds when non-empty, else times out |
504 |
|
*/ |
505 |
|
public void testTimedPoll0() { |
506 |
|
try { |
511 |
|
assertNull(q.poll(0, TimeUnit.MILLISECONDS)); |
512 |
|
} catch (InterruptedException e){ |
513 |
|
unexpectedException(); |
514 |
< |
} |
514 |
> |
} |
515 |
|
} |
516 |
|
|
517 |
|
/** |
518 |
< |
* |
518 |
> |
* timed pool with nonzero timeout succeeds when non-empty, else times out |
519 |
|
*/ |
520 |
|
public void testTimedPoll() { |
521 |
|
try { |
526 |
|
assertNull(q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS)); |
527 |
|
} catch (InterruptedException e){ |
528 |
|
unexpectedException(); |
529 |
< |
} |
529 |
> |
} |
530 |
|
} |
531 |
|
|
532 |
|
/** |
533 |
< |
* |
533 |
> |
* Interrupted timed poll throws InterruptedException instead of |
534 |
> |
* returning timeout status |
535 |
|
*/ |
536 |
|
public void testInterruptedTimedPoll() { |
537 |
|
Thread t = new Thread(new Runnable() { |
543 |
|
} |
544 |
|
threadAssertNull(q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS)); |
545 |
|
} catch (InterruptedException success){ |
546 |
< |
} |
546 |
> |
} |
547 |
|
}}); |
548 |
|
t.start(); |
549 |
< |
try { |
550 |
< |
Thread.sleep(SHORT_DELAY_MS); |
549 |
> |
try { |
550 |
> |
Thread.sleep(SHORT_DELAY_MS); |
551 |
|
t.interrupt(); |
552 |
|
t.join(); |
553 |
|
} |
557 |
|
} |
558 |
|
|
559 |
|
/** |
560 |
< |
* |
560 |
> |
* timed poll before a delayed offer fails; after offer succeeds; |
561 |
> |
* on interruption throws |
562 |
|
*/ |
563 |
|
public void testTimedPollWithOffer() { |
564 |
|
final DelayQueue q = new DelayQueue(); |
569 |
|
q.poll(LONG_DELAY_MS, TimeUnit.MILLISECONDS); |
570 |
|
q.poll(LONG_DELAY_MS, TimeUnit.MILLISECONDS); |
571 |
|
threadFail("Should block"); |
572 |
< |
} catch (InterruptedException success) { } |
572 |
> |
} catch (InterruptedException success) { } |
573 |
|
} |
574 |
|
}); |
575 |
|
try { |
581 |
|
} catch (Exception e){ |
582 |
|
unexpectedException(); |
583 |
|
} |
584 |
< |
} |
584 |
> |
} |
585 |
|
|
586 |
|
|
587 |
|
/** |
588 |
< |
* |
588 |
> |
* peek returns next element, or null if empty |
589 |
|
*/ |
590 |
|
public void testPeek() { |
591 |
|
DelayQueue q = populatedQueue(SIZE); |
592 |
|
for (int i = 0; i < SIZE; ++i) { |
593 |
|
assertEquals(new PDelay(i), ((PDelay)q.peek())); |
594 |
|
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 |
|
} |
602 |
|
|
603 |
|
/** |
604 |
< |
* |
604 |
> |
* element returns next element, or throws NSEE if empty |
605 |
|
*/ |
606 |
|
public void testElement() { |
607 |
|
DelayQueue q = populatedQueue(SIZE); |
617 |
|
} |
618 |
|
|
619 |
|
/** |
620 |
< |
* |
620 |
> |
* remove removes next element, or throws NSEE if empty |
621 |
|
*/ |
622 |
|
public void testRemove() { |
623 |
|
DelayQueue q = populatedQueue(SIZE); |
628 |
|
q.remove(); |
629 |
|
shouldThrow(); |
630 |
|
} catch (NoSuchElementException success){ |
631 |
< |
} |
631 |
> |
} |
632 |
|
} |
633 |
|
|
634 |
|
/** |
635 |
< |
* |
635 |
> |
* remove(x) removes x and returns true if present |
636 |
|
*/ |
637 |
|
public void testRemoveElement() { |
638 |
|
DelayQueue q = populatedQueue(SIZE); |
645 |
|
} |
646 |
|
assertTrue(q.isEmpty()); |
647 |
|
} |
648 |
< |
|
648 |
> |
|
649 |
|
/** |
650 |
< |
* |
650 |
> |
* contains(x) reports true when elements added but not yet removed |
651 |
|
*/ |
652 |
|
public void testContains() { |
653 |
|
DelayQueue q = populatedQueue(SIZE); |
659 |
|
} |
660 |
|
|
661 |
|
/** |
662 |
< |
* |
662 |
> |
* clear removes all elements |
663 |
|
*/ |
664 |
|
public void testClear() { |
665 |
|
DelayQueue q = populatedQueue(SIZE); |
667 |
|
assertTrue(q.isEmpty()); |
668 |
|
assertEquals(0, q.size()); |
669 |
|
assertEquals(NOCAP, q.remainingCapacity()); |
670 |
< |
q.add(new PDelay(1)); |
670 |
> |
PDelay x = new PDelay(1); |
671 |
> |
q.add(x); |
672 |
|
assertFalse(q.isEmpty()); |
673 |
+ |
assertTrue(q.contains(x)); |
674 |
|
q.clear(); |
675 |
|
assertTrue(q.isEmpty()); |
676 |
|
} |
677 |
|
|
678 |
|
/** |
679 |
< |
* |
679 |
> |
* containsAll(c) is true when c contains a subset of elements |
680 |
|
*/ |
681 |
|
public void testContainsAll() { |
682 |
|
DelayQueue q = populatedQueue(SIZE); |
690 |
|
} |
691 |
|
|
692 |
|
/** |
693 |
< |
* |
693 |
> |
* retainAll(c) retains only those elements of c and reports true if changed |
694 |
|
*/ |
695 |
|
public void testRetainAll() { |
696 |
|
DelayQueue q = populatedQueue(SIZE); |
709 |
|
} |
710 |
|
|
711 |
|
/** |
712 |
< |
* |
712 |
> |
* removeAll(c) removes only those elements of c and reports true if changed |
713 |
|
*/ |
714 |
|
public void testRemoveAll() { |
715 |
|
for (int i = 1; i < SIZE; ++i) { |
725 |
|
} |
726 |
|
|
727 |
|
/** |
728 |
< |
* |
728 |
> |
* toArray contains all elements |
729 |
|
*/ |
730 |
|
public void testToArray() { |
731 |
|
DelayQueue q = populatedQueue(SIZE); |
736 |
|
assertEquals(o[i], q.take()); |
737 |
|
} catch (InterruptedException e){ |
738 |
|
unexpectedException(); |
739 |
< |
} |
739 |
> |
} |
740 |
|
} |
741 |
|
|
742 |
|
/** |
743 |
< |
* |
743 |
> |
* toArray(a) contains all elements |
744 |
|
*/ |
745 |
|
public void testToArray2() { |
746 |
|
DelayQueue q = populatedQueue(SIZE); |
752 |
|
assertEquals(ints[i], q.take()); |
753 |
|
} catch (InterruptedException e){ |
754 |
|
unexpectedException(); |
755 |
< |
} |
755 |
> |
} |
756 |
> |
} |
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 |
< |
|
769 |
> |
|
770 |
|
/** |
771 |
< |
* |
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 |
|
*/ |
784 |
|
public void testIterator() { |
785 |
|
DelayQueue q = populatedQueue(SIZE); |
793 |
|
} |
794 |
|
|
795 |
|
/** |
796 |
< |
* |
796 |
> |
* iterator.remove removes current element |
797 |
|
*/ |
798 |
|
public void testIteratorRemove () { |
742 |
– |
|
799 |
|
final DelayQueue q = new DelayQueue(); |
744 |
– |
|
800 |
|
q.add(new PDelay(2)); |
801 |
|
q.add(new PDelay(1)); |
802 |
|
q.add(new PDelay(3)); |
748 |
– |
|
803 |
|
Iterator it = q.iterator(); |
804 |
|
it.next(); |
805 |
|
it.remove(); |
752 |
– |
|
806 |
|
it = q.iterator(); |
807 |
|
assertEquals(it.next(), new PDelay(2)); |
808 |
|
assertEquals(it.next(), new PDelay(3)); |
811 |
|
|
812 |
|
|
813 |
|
/** |
814 |
< |
* |
814 |
> |
* toString contains toStrings of elements |
815 |
|
*/ |
816 |
|
public void testToString() { |
817 |
|
DelayQueue q = populatedQueue(SIZE); |
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 |
< |
* |
825 |
> |
* offer transfers elements across Executor tasks |
826 |
|
*/ |
827 |
|
public void testPollInExecutor() { |
775 |
– |
|
828 |
|
final DelayQueue q = new DelayQueue(); |
777 |
– |
|
829 |
|
ExecutorService executor = Executors.newFixedThreadPool(2); |
779 |
– |
|
830 |
|
executor.execute(new Runnable() { |
831 |
|
public void run() { |
832 |
|
threadAssertNull(q.poll()); |
851 |
|
} |
852 |
|
} |
853 |
|
}); |
804 |
– |
|
854 |
|
joinPool(executor); |
855 |
|
|
856 |
|
} |
857 |
|
|
858 |
|
|
859 |
|
/** |
860 |
< |
* |
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 |
|
} |
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 |
|
} |