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/* |
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* Written by Doug Lea with assistance from members of JCP JSR-166 |
3 |
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* Expert Group and released to the public domain, as explained at |
4 |
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* http://creativecommons.org/licenses/publicdomain |
4 |
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* http://creativecommons.org/publicdomain/zero/1.0/ |
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* Other contributors include Andrew Wright, Jeffrey Hayes, |
6 |
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* Pat Fisher, Mike Judd. |
7 |
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*/ |
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|
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import junit.framework.*; |
10 |
< |
import java.util.*; |
11 |
< |
import java.util.concurrent.*; |
10 |
> |
import java.util.Arrays; |
11 |
> |
import java.util.ArrayList; |
12 |
> |
import java.util.Collection; |
13 |
> |
import java.util.Comparator; |
14 |
> |
import java.util.Iterator; |
15 |
> |
import java.util.NoSuchElementException; |
16 |
> |
import java.util.Queue; |
17 |
> |
import java.util.concurrent.PriorityBlockingQueue; |
18 |
> |
import java.util.concurrent.BlockingQueue; |
19 |
> |
import java.util.concurrent.CountDownLatch; |
20 |
> |
import java.util.concurrent.Executors; |
21 |
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import java.util.concurrent.ExecutorService; |
22 |
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import static java.util.concurrent.TimeUnit.MILLISECONDS; |
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import java.io.*; |
23 |
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|
24 |
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public class PriorityBlockingQueueTest extends JSR166TestCase { |
25 |
+ |
|
26 |
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public static class Generic extends BlockingQueueTest { |
27 |
+ |
protected BlockingQueue emptyCollection() { |
28 |
+ |
return new PriorityBlockingQueue(); |
29 |
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} |
30 |
+ |
} |
31 |
+ |
|
32 |
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public static class InitialCapacity extends BlockingQueueTest { |
33 |
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protected BlockingQueue emptyCollection() { |
34 |
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return new PriorityBlockingQueue(SIZE); |
35 |
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} |
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} |
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|
38 |
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public static void main(String[] args) { |
39 |
< |
junit.textui.TestRunner.run (suite()); |
39 |
> |
junit.textui.TestRunner.run(suite()); |
40 |
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} |
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+ |
|
42 |
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public static Test suite() { |
43 |
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return new TestSuite(PriorityBlockingQueueTest.class); |
43 |
> |
return newTestSuite(PriorityBlockingQueueTest.class, |
44 |
> |
new Generic().testSuite(), |
45 |
> |
new InitialCapacity().testSuite()); |
46 |
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} |
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|
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private static final int NOCAP = Integer.MAX_VALUE; |
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/** Sample Comparator */ |
51 |
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static class MyReverseComparator implements Comparator { |
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public int compare(Object x, Object y) { |
53 |
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int i = ((Integer)x).intValue(); |
29 |
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int j = ((Integer)y).intValue(); |
30 |
< |
if (i < j) return 1; |
31 |
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if (i > j) return -1; |
32 |
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return 0; |
53 |
> |
return ((Comparable)y).compareTo(x); |
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} |
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} |
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|
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/** |
58 |
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* Create a queue of given size containing consecutive |
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* Returns a new queue of given size containing consecutive |
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* Integers 0 ... n. |
60 |
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*/ |
61 |
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private PriorityBlockingQueue populatedQueue(int n) { |
62 |
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PriorityBlockingQueue q = new PriorityBlockingQueue(n); |
61 |
> |
private PriorityBlockingQueue<Integer> populatedQueue(int n) { |
62 |
> |
PriorityBlockingQueue<Integer> q = |
63 |
> |
new PriorityBlockingQueue<Integer>(n); |
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assertTrue(q.isEmpty()); |
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for (int i = n-1; i >= 0; i-=2) |
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assertTrue(q.offer(new Integer(i))); |
84 |
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*/ |
85 |
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public void testConstructor2() { |
86 |
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try { |
87 |
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PriorityBlockingQueue q = new PriorityBlockingQueue(0); |
87 |
> |
new PriorityBlockingQueue(0); |
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shouldThrow(); |
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} catch (IllegalArgumentException success) {} |
90 |
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} |
94 |
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*/ |
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public void testConstructor3() { |
96 |
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try { |
97 |
< |
PriorityBlockingQueue q = new PriorityBlockingQueue(null); |
97 |
> |
new PriorityBlockingQueue(null); |
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shouldThrow(); |
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} catch (NullPointerException success) {} |
100 |
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} |
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* Initializing from Collection of null elements throws NPE |
104 |
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*/ |
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public void testConstructor4() { |
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Collection<Integer> elements = Arrays.asList(new Integer[SIZE]); |
107 |
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try { |
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< |
Integer[] ints = new Integer[SIZE]; |
86 |
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PriorityBlockingQueue q = new PriorityBlockingQueue(Arrays.asList(ints)); |
108 |
> |
new PriorityBlockingQueue(elements); |
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shouldThrow(); |
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} catch (NullPointerException success) {} |
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} |
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* Initializing from Collection with some null elements throws NPE |
115 |
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*/ |
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public void testConstructor5() { |
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Integer[] ints = new Integer[SIZE]; |
118 |
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for (int i = 0; i < SIZE-1; ++i) |
119 |
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ints[i] = i; |
120 |
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Collection<Integer> elements = Arrays.asList(ints); |
121 |
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try { |
122 |
< |
Integer[] ints = new Integer[SIZE]; |
97 |
< |
for (int i = 0; i < SIZE-1; ++i) |
98 |
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ints[i] = new Integer(i); |
99 |
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PriorityBlockingQueue q = new PriorityBlockingQueue(Arrays.asList(ints)); |
122 |
> |
new PriorityBlockingQueue(elements); |
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shouldThrow(); |
124 |
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} catch (NullPointerException success) {} |
125 |
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} |
130 |
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public void testConstructor6() { |
131 |
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Integer[] ints = new Integer[SIZE]; |
132 |
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for (int i = 0; i < SIZE; ++i) |
133 |
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ints[i] = new Integer(i); |
133 |
> |
ints[i] = i; |
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PriorityBlockingQueue q = new PriorityBlockingQueue(Arrays.asList(ints)); |
135 |
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for (int i = 0; i < SIZE; ++i) |
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assertEquals(ints[i], q.poll()); |
185 |
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} |
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|
187 |
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/** |
165 |
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* offer(null) throws NPE |
166 |
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*/ |
167 |
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public void testOfferNull() { |
168 |
– |
try { |
169 |
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PriorityBlockingQueue q = new PriorityBlockingQueue(1); |
170 |
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q.offer(null); |
171 |
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shouldThrow(); |
172 |
– |
} catch (NullPointerException success) {} |
173 |
– |
} |
174 |
– |
|
175 |
– |
/** |
176 |
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* add(null) throws NPE |
177 |
– |
*/ |
178 |
– |
public void testAddNull() { |
179 |
– |
try { |
180 |
– |
PriorityBlockingQueue q = new PriorityBlockingQueue(1); |
181 |
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q.add(null); |
182 |
– |
shouldThrow(); |
183 |
– |
} catch (NullPointerException success) {} |
184 |
– |
} |
185 |
– |
|
186 |
– |
/** |
188 |
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* Offer of comparable element succeeds |
189 |
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*/ |
190 |
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public void testOffer() { |
218 |
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} |
219 |
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|
220 |
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/** |
220 |
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* addAll(null) throws NPE |
221 |
– |
*/ |
222 |
– |
public void testAddAll1() { |
223 |
– |
try { |
224 |
– |
PriorityBlockingQueue q = new PriorityBlockingQueue(1); |
225 |
– |
q.addAll(null); |
226 |
– |
shouldThrow(); |
227 |
– |
} catch (NullPointerException success) {} |
228 |
– |
} |
229 |
– |
|
230 |
– |
/** |
221 |
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* addAll(this) throws IAE |
222 |
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*/ |
223 |
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public void testAddAllSelf() { |
229 |
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} |
230 |
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|
231 |
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/** |
242 |
– |
* addAll of a collection with null elements throws NPE |
243 |
– |
*/ |
244 |
– |
public void testAddAll2() { |
245 |
– |
try { |
246 |
– |
PriorityBlockingQueue q = new PriorityBlockingQueue(SIZE); |
247 |
– |
Integer[] ints = new Integer[SIZE]; |
248 |
– |
q.addAll(Arrays.asList(ints)); |
249 |
– |
shouldThrow(); |
250 |
– |
} catch (NullPointerException success) {} |
251 |
– |
} |
252 |
– |
/** |
232 |
|
* addAll of a collection with any null elements throws NPE after |
233 |
|
* possibly adding some elements |
234 |
|
*/ |
259 |
|
} |
260 |
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|
261 |
|
/** |
283 |
– |
* put(null) throws NPE |
284 |
– |
*/ |
285 |
– |
public void testPutNull() { |
286 |
– |
try { |
287 |
– |
PriorityBlockingQueue q = new PriorityBlockingQueue(SIZE); |
288 |
– |
q.put(null); |
289 |
– |
shouldThrow(); |
290 |
– |
} catch (NullPointerException success) {} |
291 |
– |
} |
292 |
– |
|
293 |
– |
/** |
262 |
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* all elements successfully put are contained |
263 |
|
*/ |
264 |
< |
public void testPut() { |
265 |
< |
PriorityBlockingQueue q = new PriorityBlockingQueue(SIZE); |
266 |
< |
for (int i = 0; i < SIZE; ++i) { |
267 |
< |
Integer I = new Integer(i); |
268 |
< |
q.put(I); |
269 |
< |
assertTrue(q.contains(I)); |
270 |
< |
} |
271 |
< |
assertEquals(SIZE, q.size()); |
264 |
> |
public void testPut() { |
265 |
> |
PriorityBlockingQueue q = new PriorityBlockingQueue(SIZE); |
266 |
> |
for (int i = 0; i < SIZE; ++i) { |
267 |
> |
Integer I = new Integer(i); |
268 |
> |
q.put(I); |
269 |
> |
assertTrue(q.contains(I)); |
270 |
> |
} |
271 |
> |
assertEquals(SIZE, q.size()); |
272 |
|
} |
273 |
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|
274 |
|
/** |
277 |
|
public void testPutWithTake() throws InterruptedException { |
278 |
|
final PriorityBlockingQueue q = new PriorityBlockingQueue(2); |
279 |
|
final int size = 4; |
280 |
< |
Thread t = new Thread(new CheckedRunnable() { |
280 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
281 |
|
public void realRun() { |
282 |
|
for (int i = 0; i < size; i++) |
283 |
|
q.put(new Integer(0)); |
284 |
|
}}); |
285 |
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|
286 |
< |
t.start(); |
287 |
< |
Thread.sleep(SHORT_DELAY_MS); |
320 |
< |
assertEquals(q.size(), size); |
286 |
> |
awaitTermination(t); |
287 |
> |
assertEquals(size, q.size()); |
288 |
|
q.take(); |
322 |
– |
t.interrupt(); |
323 |
– |
t.join(); |
289 |
|
} |
290 |
|
|
291 |
|
/** |
293 |
|
*/ |
294 |
|
public void testTimedOffer() throws InterruptedException { |
295 |
|
final PriorityBlockingQueue q = new PriorityBlockingQueue(2); |
296 |
< |
Thread t = new Thread(new CheckedRunnable() { |
296 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
297 |
|
public void realRun() { |
298 |
|
q.put(new Integer(0)); |
299 |
|
q.put(new Integer(0)); |
300 |
< |
threadAssertTrue(q.offer(new Integer(0), SHORT_DELAY_MS, MILLISECONDS)); |
301 |
< |
threadAssertTrue(q.offer(new Integer(0), LONG_DELAY_MS, MILLISECONDS)); |
300 |
> |
assertTrue(q.offer(new Integer(0), SHORT_DELAY_MS, MILLISECONDS)); |
301 |
> |
assertTrue(q.offer(new Integer(0), LONG_DELAY_MS, MILLISECONDS)); |
302 |
|
}}); |
303 |
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|
304 |
< |
t.start(); |
340 |
< |
Thread.sleep(SMALL_DELAY_MS); |
341 |
< |
t.interrupt(); |
342 |
< |
t.join(); |
304 |
> |
awaitTermination(t); |
305 |
|
} |
306 |
|
|
307 |
|
/** |
310 |
|
public void testTake() throws InterruptedException { |
311 |
|
PriorityBlockingQueue q = populatedQueue(SIZE); |
312 |
|
for (int i = 0; i < SIZE; ++i) { |
313 |
< |
assertEquals(i, ((Integer)q.take()).intValue()); |
313 |
> |
assertEquals(i, q.take()); |
314 |
|
} |
315 |
|
} |
316 |
|
|
317 |
|
/** |
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 |
– |
/** |
318 |
|
* Take removes existing elements until empty, then blocks interruptibly |
319 |
|
*/ |
320 |
|
public void testBlockingTake() throws InterruptedException { |
321 |
< |
Thread t = new Thread(new CheckedInterruptedRunnable() { |
321 |
> |
final PriorityBlockingQueue q = populatedQueue(SIZE); |
322 |
> |
final CountDownLatch pleaseInterrupt = new CountDownLatch(1); |
323 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
324 |
|
public void realRun() throws InterruptedException { |
377 |
– |
PriorityBlockingQueue q = populatedQueue(SIZE); |
325 |
|
for (int i = 0; i < SIZE; ++i) { |
326 |
< |
threadAssertEquals(i, ((Integer)q.take()).intValue()); |
326 |
> |
assertEquals(i, q.take()); |
327 |
|
} |
328 |
< |
q.take(); |
328 |
> |
|
329 |
> |
Thread.currentThread().interrupt(); |
330 |
> |
try { |
331 |
> |
q.take(); |
332 |
> |
shouldThrow(); |
333 |
> |
} catch (InterruptedException success) {} |
334 |
> |
assertFalse(Thread.interrupted()); |
335 |
> |
|
336 |
> |
pleaseInterrupt.countDown(); |
337 |
> |
try { |
338 |
> |
q.take(); |
339 |
> |
shouldThrow(); |
340 |
> |
} catch (InterruptedException success) {} |
341 |
> |
assertFalse(Thread.interrupted()); |
342 |
|
}}); |
343 |
|
|
344 |
< |
t.start(); |
345 |
< |
Thread.sleep(SHORT_DELAY_MS); |
344 |
> |
await(pleaseInterrupt); |
345 |
> |
assertThreadStaysAlive(t); |
346 |
|
t.interrupt(); |
347 |
< |
t.join(); |
347 |
> |
awaitTermination(t); |
348 |
|
} |
349 |
|
|
390 |
– |
|
350 |
|
/** |
351 |
|
* poll succeeds unless empty |
352 |
|
*/ |
353 |
|
public void testPoll() { |
354 |
|
PriorityBlockingQueue q = populatedQueue(SIZE); |
355 |
|
for (int i = 0; i < SIZE; ++i) { |
356 |
< |
assertEquals(i, ((Integer)q.poll()).intValue()); |
356 |
> |
assertEquals(i, q.poll()); |
357 |
|
} |
358 |
|
assertNull(q.poll()); |
359 |
|
} |
360 |
|
|
361 |
|
/** |
362 |
< |
* timed pool with zero timeout succeeds when non-empty, else times out |
362 |
> |
* timed poll with zero timeout succeeds when non-empty, else times out |
363 |
|
*/ |
364 |
|
public void testTimedPoll0() throws InterruptedException { |
365 |
|
PriorityBlockingQueue q = populatedQueue(SIZE); |
366 |
|
for (int i = 0; i < SIZE; ++i) { |
367 |
< |
assertEquals(i, ((Integer)q.poll(0, MILLISECONDS)).intValue()); |
367 |
> |
assertEquals(i, q.poll(0, MILLISECONDS)); |
368 |
|
} |
369 |
|
assertNull(q.poll(0, MILLISECONDS)); |
370 |
|
} |
371 |
|
|
372 |
|
/** |
373 |
< |
* timed pool with nonzero timeout succeeds when non-empty, else times out |
373 |
> |
* timed poll with nonzero timeout succeeds when non-empty, else times out |
374 |
|
*/ |
375 |
|
public void testTimedPoll() throws InterruptedException { |
376 |
< |
PriorityBlockingQueue q = populatedQueue(SIZE); |
376 |
> |
PriorityBlockingQueue<Integer> q = populatedQueue(SIZE); |
377 |
|
for (int i = 0; i < SIZE; ++i) { |
378 |
< |
assertEquals(i, ((Integer)q.poll(SHORT_DELAY_MS, MILLISECONDS)).intValue()); |
379 |
< |
} |
380 |
< |
assertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS)); |
378 |
> |
long startTime = System.nanoTime(); |
379 |
> |
assertEquals(i, (int) q.poll(LONG_DELAY_MS, MILLISECONDS)); |
380 |
> |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
381 |
> |
} |
382 |
> |
long startTime = System.nanoTime(); |
383 |
> |
assertNull(q.poll(timeoutMillis(), MILLISECONDS)); |
384 |
> |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
385 |
> |
checkEmpty(q); |
386 |
|
} |
387 |
|
|
388 |
|
/** |
390 |
|
* returning timeout status |
391 |
|
*/ |
392 |
|
public void testInterruptedTimedPoll() throws InterruptedException { |
393 |
< |
Thread t = new Thread(new CheckedRunnable() { |
393 |
> |
final BlockingQueue<Integer> q = populatedQueue(SIZE); |
394 |
> |
final CountDownLatch aboutToWait = new CountDownLatch(1); |
395 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
396 |
|
public void realRun() throws InterruptedException { |
431 |
– |
PriorityBlockingQueue q = populatedQueue(SIZE); |
397 |
|
for (int i = 0; i < SIZE; ++i) { |
398 |
< |
assertEquals(i, ((Integer)q.poll(SHORT_DELAY_MS, MILLISECONDS)).intValue()); |
398 |
> |
long t0 = System.nanoTime(); |
399 |
> |
assertEquals(i, (int) q.poll(LONG_DELAY_MS, MILLISECONDS)); |
400 |
> |
assertTrue(millisElapsedSince(t0) < SMALL_DELAY_MS); |
401 |
|
} |
402 |
+ |
long t0 = System.nanoTime(); |
403 |
+ |
aboutToWait.countDown(); |
404 |
|
try { |
405 |
|
q.poll(LONG_DELAY_MS, MILLISECONDS); |
406 |
|
shouldThrow(); |
407 |
< |
} catch (InterruptedException success) {} |
408 |
< |
}}); |
409 |
< |
|
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) {} |
407 |
> |
} catch (InterruptedException success) { |
408 |
> |
assertTrue(millisElapsedSince(t0) < MEDIUM_DELAY_MS); |
409 |
> |
} |
410 |
|
}}); |
411 |
|
|
412 |
< |
t.start(); |
413 |
< |
Thread.sleep(SMALL_DELAY_MS); |
465 |
< |
assertTrue(q.offer(new Integer(0), SHORT_DELAY_MS, MILLISECONDS)); |
412 |
> |
aboutToWait.await(); |
413 |
> |
waitForThreadToEnterWaitState(t, SMALL_DELAY_MS); |
414 |
|
t.interrupt(); |
415 |
< |
t.join(); |
415 |
> |
awaitTermination(t, MEDIUM_DELAY_MS); |
416 |
|
} |
417 |
|
|
470 |
– |
|
418 |
|
/** |
419 |
|
* peek returns next element, or null if empty |
420 |
|
*/ |
421 |
|
public void testPeek() { |
422 |
|
PriorityBlockingQueue q = populatedQueue(SIZE); |
423 |
|
for (int i = 0; i < SIZE; ++i) { |
424 |
< |
assertEquals(i, ((Integer)q.peek()).intValue()); |
425 |
< |
q.poll(); |
424 |
> |
assertEquals(i, q.peek()); |
425 |
> |
assertEquals(i, q.poll()); |
426 |
|
assertTrue(q.peek() == null || |
427 |
< |
i != ((Integer)q.peek()).intValue()); |
427 |
> |
!q.peek().equals(i)); |
428 |
|
} |
429 |
|
assertNull(q.peek()); |
430 |
|
} |
435 |
|
public void testElement() { |
436 |
|
PriorityBlockingQueue q = populatedQueue(SIZE); |
437 |
|
for (int i = 0; i < SIZE; ++i) { |
438 |
< |
assertEquals(i, ((Integer)q.element()).intValue()); |
439 |
< |
q.poll(); |
438 |
> |
assertEquals(i, q.element()); |
439 |
> |
assertEquals(i, q.poll()); |
440 |
|
} |
441 |
|
try { |
442 |
|
q.element(); |
450 |
|
public void testRemove() { |
451 |
|
PriorityBlockingQueue q = populatedQueue(SIZE); |
452 |
|
for (int i = 0; i < SIZE; ++i) { |
453 |
< |
assertEquals(i, ((Integer)q.remove()).intValue()); |
453 |
> |
assertEquals(i, q.remove()); |
454 |
|
} |
455 |
|
try { |
456 |
|
q.remove(); |
459 |
|
} |
460 |
|
|
461 |
|
/** |
515 |
– |
* remove(x) removes x and returns true if present |
516 |
– |
*/ |
517 |
– |
public void testRemoveElement() { |
518 |
– |
PriorityBlockingQueue q = populatedQueue(SIZE); |
519 |
– |
for (int i = 1; i < SIZE; i+=2) { |
520 |
– |
assertTrue(q.remove(new Integer(i))); |
521 |
– |
} |
522 |
– |
for (int i = 0; i < SIZE; i+=2) { |
523 |
– |
assertTrue(q.remove(new Integer(i))); |
524 |
– |
assertFalse(q.remove(new Integer(i+1))); |
525 |
– |
} |
526 |
– |
assertTrue(q.isEmpty()); |
527 |
– |
} |
528 |
– |
|
529 |
– |
/** |
462 |
|
* contains(x) reports true when elements added but not yet removed |
463 |
|
*/ |
464 |
|
public void testContains() { |
535 |
|
} |
536 |
|
|
537 |
|
/** |
538 |
< |
* toArray contains all elements |
538 |
> |
* toArray contains all elements |
539 |
|
*/ |
540 |
|
public void testToArray() throws InterruptedException { |
541 |
|
PriorityBlockingQueue q = populatedQueue(SIZE); |
542 |
|
Object[] o = q.toArray(); |
543 |
|
Arrays.sort(o); |
544 |
|
for (int i = 0; i < o.length; i++) |
545 |
< |
assertEquals(o[i], q.take()); |
545 |
> |
assertSame(o[i], q.take()); |
546 |
|
} |
547 |
|
|
548 |
|
/** |
549 |
|
* toArray(a) contains all elements |
550 |
|
*/ |
551 |
|
public void testToArray2() throws InterruptedException { |
552 |
< |
PriorityBlockingQueue q = populatedQueue(SIZE); |
552 |
> |
PriorityBlockingQueue<Integer> q = populatedQueue(SIZE); |
553 |
|
Integer[] ints = new Integer[SIZE]; |
554 |
< |
ints = (Integer[])q.toArray(ints); |
554 |
> |
Integer[] array = q.toArray(ints); |
555 |
> |
assertSame(ints, array); |
556 |
|
Arrays.sort(ints); |
557 |
|
for (int i = 0; i < ints.length; i++) |
558 |
< |
assertEquals(ints[i], q.take()); |
626 |
< |
} |
627 |
< |
|
628 |
< |
/** |
629 |
< |
* toArray(null) throws NPE |
630 |
< |
*/ |
631 |
< |
public void testToArray_BadArg() { |
632 |
< |
try { |
633 |
< |
PriorityBlockingQueue q = populatedQueue(SIZE); |
634 |
< |
Object o[] = q.toArray(null); |
635 |
< |
shouldThrow(); |
636 |
< |
} catch (NullPointerException success) {} |
558 |
> |
assertSame(ints[i], q.take()); |
559 |
|
} |
560 |
|
|
561 |
|
/** |
562 |
< |
* toArray with incompatible array type throws CCE |
562 |
> |
* toArray(incompatible array type) throws ArrayStoreException |
563 |
|
*/ |
564 |
|
public void testToArray1_BadArg() { |
565 |
+ |
PriorityBlockingQueue q = populatedQueue(SIZE); |
566 |
|
try { |
567 |
< |
PriorityBlockingQueue q = populatedQueue(SIZE); |
645 |
< |
Object o[] = q.toArray(new String[10] ); |
567 |
> |
q.toArray(new String[10]); |
568 |
|
shouldThrow(); |
569 |
|
} catch (ArrayStoreException success) {} |
570 |
|
} |
586 |
|
/** |
587 |
|
* iterator.remove removes current element |
588 |
|
*/ |
589 |
< |
public void testIteratorRemove () { |
589 |
> |
public void testIteratorRemove() { |
590 |
|
final PriorityBlockingQueue q = new PriorityBlockingQueue(3); |
591 |
|
q.add(new Integer(2)); |
592 |
|
q.add(new Integer(1)); |
602 |
|
assertFalse(it.hasNext()); |
603 |
|
} |
604 |
|
|
683 |
– |
|
605 |
|
/** |
606 |
|
* toString contains toStrings of elements |
607 |
|
*/ |
609 |
|
PriorityBlockingQueue q = populatedQueue(SIZE); |
610 |
|
String s = q.toString(); |
611 |
|
for (int i = 0; i < SIZE; ++i) { |
612 |
< |
assertTrue(s.indexOf(String.valueOf(i)) >= 0); |
612 |
> |
assertTrue(s.contains(String.valueOf(i))); |
613 |
|
} |
614 |
|
} |
615 |
|
|
616 |
|
/** |
617 |
< |
* offer transfers elements across Executor tasks |
617 |
> |
* timed poll transfers elements across Executor tasks |
618 |
|
*/ |
619 |
|
public void testPollInExecutor() { |
620 |
|
final PriorityBlockingQueue q = new PriorityBlockingQueue(2); |
621 |
+ |
final CheckedBarrier threadsStarted = new CheckedBarrier(2); |
622 |
|
ExecutorService executor = Executors.newFixedThreadPool(2); |
623 |
|
executor.execute(new CheckedRunnable() { |
624 |
|
public void realRun() throws InterruptedException { |
625 |
< |
threadAssertNull(q.poll()); |
626 |
< |
threadAssertTrue(null != q.poll(MEDIUM_DELAY_MS, MILLISECONDS)); |
627 |
< |
threadAssertTrue(q.isEmpty()); |
625 |
> |
assertNull(q.poll()); |
626 |
> |
threadsStarted.await(); |
627 |
> |
assertSame(one, q.poll(LONG_DELAY_MS, MILLISECONDS)); |
628 |
> |
checkEmpty(q); |
629 |
|
}}); |
630 |
|
|
631 |
|
executor.execute(new CheckedRunnable() { |
632 |
|
public void realRun() throws InterruptedException { |
633 |
< |
Thread.sleep(SMALL_DELAY_MS); |
634 |
< |
q.put(new Integer(1)); |
633 |
> |
threadsStarted.await(); |
634 |
> |
q.put(one); |
635 |
|
}}); |
636 |
|
|
637 |
|
joinPool(executor); |
641 |
|
* A deserialized serialized queue has same elements |
642 |
|
*/ |
643 |
|
public void testSerialization() throws Exception { |
644 |
< |
PriorityBlockingQueue q = populatedQueue(SIZE); |
645 |
< |
ByteArrayOutputStream bout = new ByteArrayOutputStream(10000); |
723 |
< |
ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout)); |
724 |
< |
out.writeObject(q); |
725 |
< |
out.close(); |
726 |
< |
|
727 |
< |
ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray()); |
728 |
< |
ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin)); |
729 |
< |
PriorityBlockingQueue r = (PriorityBlockingQueue)in.readObject(); |
730 |
< |
assertEquals(q.size(), r.size()); |
731 |
< |
while (!q.isEmpty()) |
732 |
< |
assertEquals(q.remove(), r.remove()); |
733 |
< |
} |
644 |
> |
Queue x = populatedQueue(SIZE); |
645 |
> |
Queue y = serialClone(x); |
646 |
|
|
647 |
< |
/** |
648 |
< |
* drainTo(null) throws NPE |
649 |
< |
*/ |
650 |
< |
public void testDrainToNull() { |
651 |
< |
PriorityBlockingQueue q = populatedQueue(SIZE); |
652 |
< |
try { |
653 |
< |
q.drainTo(null); |
742 |
< |
shouldThrow(); |
743 |
< |
} catch (NullPointerException success) {} |
744 |
< |
} |
745 |
< |
|
746 |
< |
/** |
747 |
< |
* drainTo(this) throws IAE |
748 |
< |
*/ |
749 |
< |
public void testDrainToSelf() { |
750 |
< |
PriorityBlockingQueue q = populatedQueue(SIZE); |
751 |
< |
try { |
752 |
< |
q.drainTo(q); |
753 |
< |
shouldThrow(); |
754 |
< |
} catch (IllegalArgumentException success) {} |
647 |
> |
assertTrue(x != y); |
648 |
> |
assertEquals(x.size(), y.size()); |
649 |
> |
while (!x.isEmpty()) { |
650 |
> |
assertFalse(y.isEmpty()); |
651 |
> |
assertEquals(x.remove(), y.remove()); |
652 |
> |
} |
653 |
> |
assertTrue(y.isEmpty()); |
654 |
|
} |
655 |
|
|
656 |
|
/** |
660 |
|
PriorityBlockingQueue q = populatedQueue(SIZE); |
661 |
|
ArrayList l = new ArrayList(); |
662 |
|
q.drainTo(l); |
663 |
< |
assertEquals(q.size(), 0); |
664 |
< |
assertEquals(l.size(), SIZE); |
663 |
> |
assertEquals(0, q.size()); |
664 |
> |
assertEquals(SIZE, l.size()); |
665 |
|
for (int i = 0; i < SIZE; ++i) |
666 |
|
assertEquals(l.get(i), new Integer(i)); |
667 |
|
q.add(zero); |
671 |
|
assertTrue(q.contains(one)); |
672 |
|
l.clear(); |
673 |
|
q.drainTo(l); |
674 |
< |
assertEquals(q.size(), 0); |
675 |
< |
assertEquals(l.size(), 2); |
674 |
> |
assertEquals(0, q.size()); |
675 |
> |
assertEquals(2, l.size()); |
676 |
|
for (int i = 0; i < 2; ++i) |
677 |
|
assertEquals(l.get(i), new Integer(i)); |
678 |
|
} |
698 |
|
} |
699 |
|
|
700 |
|
/** |
701 |
< |
* drainTo(null, n) throws NPE |
803 |
< |
*/ |
804 |
< |
public void testDrainToNullN() { |
805 |
< |
PriorityBlockingQueue q = populatedQueue(SIZE); |
806 |
< |
try { |
807 |
< |
q.drainTo(null, 0); |
808 |
< |
shouldThrow(); |
809 |
< |
} catch (NullPointerException success) {} |
810 |
< |
} |
811 |
< |
|
812 |
< |
/** |
813 |
< |
* drainTo(this, n) throws IAE |
814 |
< |
*/ |
815 |
< |
public void testDrainToSelfN() { |
816 |
< |
PriorityBlockingQueue q = populatedQueue(SIZE); |
817 |
< |
try { |
818 |
< |
q.drainTo(q, 0); |
819 |
< |
shouldThrow(); |
820 |
< |
} catch (IllegalArgumentException success) {} |
821 |
< |
} |
822 |
< |
|
823 |
< |
/** |
824 |
< |
* drainTo(c, n) empties first max {n, size} elements of queue into c |
701 |
> |
* drainTo(c, n) empties first min(n, size) elements of queue into c |
702 |
|
*/ |
703 |
|
public void testDrainToN() { |
704 |
|
PriorityBlockingQueue q = new PriorityBlockingQueue(SIZE*2); |
707 |
|
assertTrue(q.offer(new Integer(j))); |
708 |
|
ArrayList l = new ArrayList(); |
709 |
|
q.drainTo(l, i); |
710 |
< |
int k = (i < SIZE)? i : SIZE; |
711 |
< |
assertEquals(l.size(), k); |
712 |
< |
assertEquals(q.size(), SIZE-k); |
710 |
> |
int k = (i < SIZE) ? i : SIZE; |
711 |
> |
assertEquals(k, l.size()); |
712 |
> |
assertEquals(SIZE-k, q.size()); |
713 |
|
for (int j = 0; j < k; ++j) |
714 |
|
assertEquals(l.get(j), new Integer(j)); |
715 |
|
while (q.poll() != null) ; |