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/* |
2 |
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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 |
> |
* http://creativecommons.org/publicdomain/zero/1.0/ |
5 |
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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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9 |
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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.Iterator; |
14 |
> |
import java.util.NoSuchElementException; |
15 |
> |
import java.util.Queue; |
16 |
> |
import java.util.concurrent.ArrayBlockingQueue; |
17 |
> |
import java.util.concurrent.BlockingQueue; |
18 |
> |
import java.util.concurrent.CountDownLatch; |
19 |
> |
import java.util.concurrent.Executors; |
20 |
> |
import java.util.concurrent.ExecutorService; |
21 |
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import static java.util.concurrent.TimeUnit.MILLISECONDS; |
14 |
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import java.io.*; |
22 |
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|
23 |
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public class ArrayBlockingQueueTest extends JSR166TestCase { |
24 |
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|
25 |
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public static class Fair extends BlockingQueueTest { |
26 |
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protected BlockingQueue emptyCollection() { |
27 |
< |
return new ArrayBlockingQueue(20, true); |
27 |
> |
return new ArrayBlockingQueue(SIZE, true); |
28 |
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} |
29 |
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} |
30 |
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|
31 |
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public static class NonFair extends BlockingQueueTest { |
32 |
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protected BlockingQueue emptyCollection() { |
33 |
< |
return new ArrayBlockingQueue(20, false); |
33 |
> |
return new ArrayBlockingQueue(SIZE, false); |
34 |
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} |
35 |
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} |
36 |
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|
48 |
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* Create a queue of given size containing consecutive |
49 |
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* Integers 0 ... n. |
50 |
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*/ |
51 |
< |
private ArrayBlockingQueue populatedQueue(int n) { |
52 |
< |
ArrayBlockingQueue q = new ArrayBlockingQueue(n); |
51 |
> |
private ArrayBlockingQueue<Integer> populatedQueue(int n) { |
52 |
> |
ArrayBlockingQueue<Integer> q = new ArrayBlockingQueue<Integer>(n); |
53 |
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assertTrue(q.isEmpty()); |
54 |
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for (int i = 0; i < n; i++) |
55 |
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assertTrue(q.offer(new Integer(i))); |
71 |
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*/ |
72 |
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public void testConstructor2() { |
73 |
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try { |
74 |
< |
ArrayBlockingQueue q = new ArrayBlockingQueue(0); |
74 |
> |
new ArrayBlockingQueue(0); |
75 |
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shouldThrow(); |
76 |
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} catch (IllegalArgumentException success) {} |
77 |
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} |
81 |
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*/ |
82 |
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public void testConstructor3() { |
83 |
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try { |
84 |
< |
ArrayBlockingQueue q = new ArrayBlockingQueue(1, true, null); |
84 |
> |
new ArrayBlockingQueue(1, true, null); |
85 |
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shouldThrow(); |
86 |
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} catch (NullPointerException success) {} |
87 |
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} |
90 |
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* Initializing from Collection of null elements throws NPE |
91 |
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*/ |
92 |
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public void testConstructor4() { |
93 |
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Collection<Integer> elements = Arrays.asList(new Integer[SIZE]); |
94 |
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try { |
95 |
< |
Integer[] ints = new Integer[SIZE]; |
88 |
< |
ArrayBlockingQueue q = new ArrayBlockingQueue(SIZE, false, Arrays.asList(ints)); |
95 |
> |
new ArrayBlockingQueue(SIZE, false, elements); |
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shouldThrow(); |
97 |
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} catch (NullPointerException success) {} |
98 |
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} |
101 |
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* Initializing from Collection with some null elements throws NPE |
102 |
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*/ |
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public void testConstructor5() { |
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Integer[] ints = new Integer[SIZE]; |
105 |
+ |
for (int i = 0; i < SIZE-1; ++i) |
106 |
+ |
ints[i] = i; |
107 |
+ |
Collection<Integer> elements = Arrays.asList(ints); |
108 |
|
try { |
109 |
< |
Integer[] ints = new Integer[SIZE]; |
99 |
< |
for (int i = 0; i < SIZE-1; ++i) |
100 |
< |
ints[i] = new Integer(i); |
101 |
< |
ArrayBlockingQueue q = new ArrayBlockingQueue(SIZE, false, Arrays.asList(ints)); |
109 |
> |
new ArrayBlockingQueue(SIZE, false, Arrays.asList(ints)); |
110 |
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shouldThrow(); |
111 |
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} catch (NullPointerException success) {} |
112 |
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} |
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* Initializing from too large collection throws IAE |
116 |
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*/ |
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public void testConstructor6() { |
118 |
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Integer[] ints = new Integer[SIZE]; |
119 |
+ |
for (int i = 0; i < SIZE; ++i) |
120 |
+ |
ints[i] = i; |
121 |
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Collection<Integer> elements = Arrays.asList(ints); |
122 |
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try { |
123 |
< |
Integer[] ints = new Integer[SIZE]; |
112 |
< |
for (int i = 0; i < SIZE; ++i) |
113 |
< |
ints[i] = new Integer(i); |
114 |
< |
ArrayBlockingQueue q = new ArrayBlockingQueue(1, false, Arrays.asList(ints)); |
123 |
> |
new ArrayBlockingQueue(SIZE - 1, false, elements); |
124 |
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shouldThrow(); |
125 |
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} catch (IllegalArgumentException success) {} |
126 |
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} |
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public void testConstructor7() { |
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Integer[] ints = new Integer[SIZE]; |
133 |
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for (int i = 0; i < SIZE; ++i) |
134 |
< |
ints[i] = new Integer(i); |
135 |
< |
ArrayBlockingQueue q = new ArrayBlockingQueue(SIZE, true, Arrays.asList(ints)); |
134 |
> |
ints[i] = i; |
135 |
> |
Collection<Integer> elements = Arrays.asList(ints); |
136 |
> |
ArrayBlockingQueue q = new ArrayBlockingQueue(SIZE, true, elements); |
137 |
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for (int i = 0; i < SIZE; ++i) |
138 |
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assertEquals(ints[i], q.poll()); |
139 |
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} |
171 |
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} |
172 |
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|
173 |
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/** |
164 |
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* offer(null) throws NPE |
165 |
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*/ |
166 |
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public void testOfferNull() { |
167 |
– |
try { |
168 |
– |
ArrayBlockingQueue q = new ArrayBlockingQueue(1); |
169 |
– |
q.offer(null); |
170 |
– |
shouldThrow(); |
171 |
– |
} catch (NullPointerException success) {} |
172 |
– |
} |
173 |
– |
|
174 |
– |
/** |
175 |
– |
* add(null) throws NPE |
176 |
– |
*/ |
177 |
– |
public void testAddNull() { |
178 |
– |
try { |
179 |
– |
ArrayBlockingQueue q = new ArrayBlockingQueue(1); |
180 |
– |
q.add(null); |
181 |
– |
shouldThrow(); |
182 |
– |
} catch (NullPointerException success) {} |
183 |
– |
} |
184 |
– |
|
185 |
– |
/** |
174 |
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* Offer succeeds if not full; fails if full |
175 |
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*/ |
176 |
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public void testOffer() { |
195 |
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} |
196 |
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|
197 |
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/** |
210 |
– |
* addAll(null) throws NPE |
211 |
– |
*/ |
212 |
– |
public void testAddAll1() { |
213 |
– |
try { |
214 |
– |
ArrayBlockingQueue q = new ArrayBlockingQueue(1); |
215 |
– |
q.addAll(null); |
216 |
– |
shouldThrow(); |
217 |
– |
} catch (NullPointerException success) {} |
218 |
– |
} |
219 |
– |
|
220 |
– |
/** |
198 |
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* addAll(this) throws IAE |
199 |
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*/ |
200 |
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public void testAddAllSelf() { |
205 |
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} catch (IllegalArgumentException success) {} |
206 |
|
} |
207 |
|
|
231 |
– |
|
232 |
– |
/** |
233 |
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* addAll of a collection with null elements throws NPE |
234 |
– |
*/ |
235 |
– |
public void testAddAll2() { |
236 |
– |
try { |
237 |
– |
ArrayBlockingQueue q = new ArrayBlockingQueue(SIZE); |
238 |
– |
Integer[] ints = new Integer[SIZE]; |
239 |
– |
q.addAll(Arrays.asList(ints)); |
240 |
– |
shouldThrow(); |
241 |
– |
} catch (NullPointerException success) {} |
242 |
– |
} |
243 |
– |
|
208 |
|
/** |
209 |
|
* addAll of a collection with any null elements throws NPE after |
210 |
|
* possibly adding some elements |
250 |
|
} |
251 |
|
|
252 |
|
/** |
289 |
– |
* put(null) throws NPE |
290 |
– |
*/ |
291 |
– |
public void testPutNull() throws InterruptedException { |
292 |
– |
try { |
293 |
– |
ArrayBlockingQueue q = new ArrayBlockingQueue(SIZE); |
294 |
– |
q.put(null); |
295 |
– |
shouldThrow(); |
296 |
– |
} catch (NullPointerException success) {} |
297 |
– |
} |
298 |
– |
|
299 |
– |
/** |
253 |
|
* all elements successfully put are contained |
254 |
|
*/ |
255 |
|
public void testPut() throws InterruptedException { |
267 |
|
*/ |
268 |
|
public void testBlockingPut() throws InterruptedException { |
269 |
|
final ArrayBlockingQueue q = new ArrayBlockingQueue(SIZE); |
270 |
< |
Thread t = new Thread(new CheckedRunnable() { |
270 |
> |
final CountDownLatch pleaseInterrupt = new CountDownLatch(1); |
271 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
272 |
|
public void realRun() throws InterruptedException { |
273 |
|
for (int i = 0; i < SIZE; ++i) |
274 |
|
q.put(i); |
275 |
|
assertEquals(SIZE, q.size()); |
276 |
|
assertEquals(0, q.remainingCapacity()); |
277 |
+ |
|
278 |
+ |
Thread.currentThread().interrupt(); |
279 |
|
try { |
280 |
|
q.put(99); |
281 |
|
shouldThrow(); |
282 |
|
} catch (InterruptedException success) {} |
283 |
+ |
assertFalse(Thread.interrupted()); |
284 |
+ |
|
285 |
+ |
pleaseInterrupt.countDown(); |
286 |
+ |
try { |
287 |
+ |
q.put(99); |
288 |
+ |
shouldThrow(); |
289 |
+ |
} catch (InterruptedException success) {} |
290 |
+ |
assertFalse(Thread.interrupted()); |
291 |
|
}}); |
292 |
|
|
293 |
< |
t.start(); |
294 |
< |
Thread.sleep(SHORT_DELAY_MS); |
293 |
> |
await(pleaseInterrupt); |
294 |
> |
assertThreadStaysAlive(t); |
295 |
|
t.interrupt(); |
296 |
< |
t.join(); |
296 |
> |
awaitTermination(t); |
297 |
|
assertEquals(SIZE, q.size()); |
298 |
|
assertEquals(0, q.remainingCapacity()); |
299 |
|
} |
300 |
|
|
301 |
|
/** |
302 |
< |
* put blocks waiting for take when full |
302 |
> |
* put blocks interruptibly waiting for take when full |
303 |
|
*/ |
304 |
|
public void testPutWithTake() throws InterruptedException { |
305 |
|
final int capacity = 2; |
306 |
|
final ArrayBlockingQueue q = new ArrayBlockingQueue(capacity); |
307 |
< |
Thread t = new Thread(new CheckedRunnable() { |
307 |
> |
final CountDownLatch pleaseTake = new CountDownLatch(1); |
308 |
> |
final CountDownLatch pleaseInterrupt = new CountDownLatch(1); |
309 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
310 |
|
public void realRun() throws InterruptedException { |
311 |
< |
for (int i = 0; i < capacity + 1; i++) |
311 |
> |
for (int i = 0; i < capacity; i++) |
312 |
|
q.put(i); |
313 |
+ |
pleaseTake.countDown(); |
314 |
+ |
q.put(86); |
315 |
+ |
|
316 |
+ |
pleaseInterrupt.countDown(); |
317 |
|
try { |
318 |
|
q.put(99); |
319 |
|
shouldThrow(); |
320 |
|
} catch (InterruptedException success) {} |
321 |
+ |
assertFalse(Thread.interrupted()); |
322 |
|
}}); |
323 |
|
|
324 |
< |
t.start(); |
325 |
< |
Thread.sleep(SHORT_DELAY_MS); |
355 |
< |
assertEquals(q.remainingCapacity(), 0); |
324 |
> |
await(pleaseTake); |
325 |
> |
assertEquals(0, q.remainingCapacity()); |
326 |
|
assertEquals(0, q.take()); |
327 |
< |
Thread.sleep(SHORT_DELAY_MS); |
327 |
> |
|
328 |
> |
await(pleaseInterrupt); |
329 |
> |
assertThreadStaysAlive(t); |
330 |
|
t.interrupt(); |
331 |
< |
t.join(); |
332 |
< |
assertEquals(q.remainingCapacity(), 0); |
331 |
> |
awaitTermination(t); |
332 |
> |
assertEquals(0, q.remainingCapacity()); |
333 |
|
} |
334 |
|
|
335 |
|
/** |
337 |
|
*/ |
338 |
|
public void testTimedOffer() throws InterruptedException { |
339 |
|
final ArrayBlockingQueue q = new ArrayBlockingQueue(2); |
340 |
< |
Thread t = new Thread(new CheckedRunnable() { |
340 |
> |
final CountDownLatch pleaseInterrupt = new CountDownLatch(1); |
341 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
342 |
|
public void realRun() throws InterruptedException { |
343 |
|
q.put(new Object()); |
344 |
|
q.put(new Object()); |
345 |
< |
assertFalse(q.offer(new Object(), SHORT_DELAY_MS/2, MILLISECONDS)); |
345 |
> |
long startTime = System.nanoTime(); |
346 |
> |
assertFalse(q.offer(new Object(), timeoutMillis(), MILLISECONDS)); |
347 |
> |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
348 |
> |
pleaseInterrupt.countDown(); |
349 |
|
try { |
350 |
< |
q.offer(new Object(), LONG_DELAY_MS, MILLISECONDS); |
350 |
> |
q.offer(new Object(), 2 * LONG_DELAY_MS, MILLISECONDS); |
351 |
|
shouldThrow(); |
352 |
|
} catch (InterruptedException success) {} |
353 |
|
}}); |
354 |
|
|
355 |
< |
t.start(); |
356 |
< |
Thread.sleep(SHORT_DELAY_MS); |
355 |
> |
await(pleaseInterrupt); |
356 |
> |
assertThreadStaysAlive(t); |
357 |
|
t.interrupt(); |
358 |
< |
t.join(); |
358 |
> |
awaitTermination(t); |
359 |
|
} |
360 |
|
|
361 |
|
/** |
373 |
|
*/ |
374 |
|
public void testBlockingTake() throws InterruptedException { |
375 |
|
final ArrayBlockingQueue q = populatedQueue(SIZE); |
376 |
< |
Thread t = new Thread(new CheckedRunnable() { |
376 |
> |
final CountDownLatch pleaseInterrupt = new CountDownLatch(1); |
377 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
378 |
|
public void realRun() throws InterruptedException { |
379 |
|
for (int i = 0; i < SIZE; ++i) { |
380 |
|
assertEquals(i, q.take()); |
381 |
|
} |
382 |
+ |
|
383 |
+ |
Thread.currentThread().interrupt(); |
384 |
+ |
try { |
385 |
+ |
q.take(); |
386 |
+ |
shouldThrow(); |
387 |
+ |
} catch (InterruptedException success) {} |
388 |
+ |
assertFalse(Thread.interrupted()); |
389 |
+ |
|
390 |
+ |
pleaseInterrupt.countDown(); |
391 |
|
try { |
392 |
|
q.take(); |
393 |
|
shouldThrow(); |
394 |
|
} catch (InterruptedException success) {} |
395 |
+ |
assertFalse(Thread.interrupted()); |
396 |
|
}}); |
397 |
|
|
398 |
< |
t.start(); |
399 |
< |
Thread.sleep(SHORT_DELAY_MS); |
398 |
> |
await(pleaseInterrupt); |
399 |
> |
assertThreadStaysAlive(t); |
400 |
|
t.interrupt(); |
401 |
< |
t.join(); |
401 |
> |
awaitTermination(t); |
402 |
|
} |
403 |
|
|
417 |
– |
|
404 |
|
/** |
405 |
|
* poll succeeds unless empty |
406 |
|
*/ |
413 |
|
} |
414 |
|
|
415 |
|
/** |
416 |
< |
* timed pool with zero timeout succeeds when non-empty, else times out |
416 |
> |
* timed poll with zero timeout succeeds when non-empty, else times out |
417 |
|
*/ |
418 |
|
public void testTimedPoll0() throws InterruptedException { |
419 |
|
ArrayBlockingQueue q = populatedQueue(SIZE); |
421 |
|
assertEquals(i, q.poll(0, MILLISECONDS)); |
422 |
|
} |
423 |
|
assertNull(q.poll(0, MILLISECONDS)); |
424 |
+ |
checkEmpty(q); |
425 |
|
} |
426 |
|
|
427 |
|
/** |
428 |
< |
* timed pool with nonzero timeout succeeds when non-empty, else times out |
428 |
> |
* timed poll with nonzero timeout succeeds when non-empty, else times out |
429 |
|
*/ |
430 |
|
public void testTimedPoll() throws InterruptedException { |
431 |
|
ArrayBlockingQueue q = populatedQueue(SIZE); |
432 |
|
for (int i = 0; i < SIZE; ++i) { |
433 |
< |
assertEquals(i, q.poll(SHORT_DELAY_MS, MILLISECONDS)); |
434 |
< |
} |
435 |
< |
assertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS)); |
433 |
> |
long startTime = System.nanoTime(); |
434 |
> |
assertEquals(i, q.poll(LONG_DELAY_MS, MILLISECONDS)); |
435 |
> |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
436 |
> |
} |
437 |
> |
long startTime = System.nanoTime(); |
438 |
> |
assertNull(q.poll(timeoutMillis(), MILLISECONDS)); |
439 |
> |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
440 |
> |
checkEmpty(q); |
441 |
|
} |
442 |
|
|
443 |
|
/** |
445 |
|
* returning timeout status |
446 |
|
*/ |
447 |
|
public void testInterruptedTimedPoll() throws InterruptedException { |
448 |
< |
Thread t = new Thread(new CheckedRunnable() { |
448 |
> |
final BlockingQueue<Integer> q = populatedQueue(SIZE); |
449 |
> |
final CountDownLatch aboutToWait = new CountDownLatch(1); |
450 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
451 |
|
public void realRun() throws InterruptedException { |
458 |
– |
ArrayBlockingQueue q = populatedQueue(SIZE); |
452 |
|
for (int i = 0; i < SIZE; ++i) { |
453 |
< |
assertEquals(i, q.poll(SHORT_DELAY_MS, MILLISECONDS));; |
453 |
> |
long t0 = System.nanoTime(); |
454 |
> |
assertEquals(i, (int) q.poll(LONG_DELAY_MS, MILLISECONDS)); |
455 |
> |
assertTrue(millisElapsedSince(t0) < SMALL_DELAY_MS); |
456 |
|
} |
457 |
+ |
long t0 = System.nanoTime(); |
458 |
+ |
aboutToWait.countDown(); |
459 |
|
try { |
460 |
< |
q.poll(SMALL_DELAY_MS, MILLISECONDS); |
460 |
> |
q.poll(MEDIUM_DELAY_MS, MILLISECONDS); |
461 |
|
shouldThrow(); |
462 |
< |
} catch (InterruptedException success) {} |
462 |
> |
} catch (InterruptedException success) { |
463 |
> |
assertTrue(millisElapsedSince(t0) < MEDIUM_DELAY_MS); |
464 |
> |
} |
465 |
|
}}); |
466 |
|
|
467 |
< |
t.start(); |
468 |
< |
Thread.sleep(SHORT_DELAY_MS); |
467 |
> |
aboutToWait.await(); |
468 |
> |
waitForThreadToEnterWaitState(t, SMALL_DELAY_MS); |
469 |
|
t.interrupt(); |
470 |
< |
t.join(); |
470 |
> |
awaitTermination(t, MEDIUM_DELAY_MS); |
471 |
> |
checkEmpty(q); |
472 |
|
} |
473 |
|
|
474 |
|
/** |
515 |
|
} |
516 |
|
|
517 |
|
/** |
518 |
– |
* remove(x) removes x and returns true if present |
519 |
– |
*/ |
520 |
– |
public void testRemoveElement() { |
521 |
– |
ArrayBlockingQueue q = populatedQueue(SIZE); |
522 |
– |
for (int i = 1; i < SIZE; i+=2) { |
523 |
– |
assertTrue(q.remove(new Integer(i))); |
524 |
– |
} |
525 |
– |
for (int i = 0; i < SIZE; i+=2) { |
526 |
– |
assertTrue(q.remove(new Integer(i))); |
527 |
– |
assertFalse(q.remove(new Integer(i+1))); |
528 |
– |
} |
529 |
– |
assertTrue(q.isEmpty()); |
530 |
– |
} |
531 |
– |
|
532 |
– |
/** |
518 |
|
* contains(x) reports true when elements added but not yet removed |
519 |
|
*/ |
520 |
|
public void testContains() { |
592 |
|
} |
593 |
|
|
594 |
|
/** |
595 |
< |
* toArray contains all elements |
595 |
> |
* toArray contains all elements in FIFO order |
596 |
|
*/ |
597 |
< |
public void testToArray() throws InterruptedException { |
597 |
> |
public void testToArray() { |
598 |
|
ArrayBlockingQueue q = populatedQueue(SIZE); |
599 |
|
Object[] o = q.toArray(); |
600 |
|
for (int i = 0; i < o.length; i++) |
601 |
< |
assertEquals(o[i], q.take()); |
601 |
> |
assertSame(o[i], q.poll()); |
602 |
|
} |
603 |
|
|
604 |
|
/** |
605 |
< |
* toArray(a) contains all elements |
605 |
> |
* toArray(a) contains all elements in FIFO order |
606 |
|
*/ |
607 |
< |
public void testToArray2() throws InterruptedException { |
608 |
< |
ArrayBlockingQueue q = populatedQueue(SIZE); |
607 |
> |
public void testToArray2() { |
608 |
> |
ArrayBlockingQueue<Integer> q = populatedQueue(SIZE); |
609 |
|
Integer[] ints = new Integer[SIZE]; |
610 |
< |
ints = (Integer[])q.toArray(ints); |
610 |
> |
Integer[] array = q.toArray(ints); |
611 |
> |
assertSame(ints, array); |
612 |
|
for (int i = 0; i < ints.length; i++) |
613 |
< |
assertEquals(ints[i], q.take()); |
628 |
< |
} |
629 |
< |
|
630 |
< |
/** |
631 |
< |
* toArray(null) throws NPE |
632 |
< |
*/ |
633 |
< |
public void testToArray_BadArg() { |
634 |
< |
ArrayBlockingQueue q = populatedQueue(SIZE); |
635 |
< |
try { |
636 |
< |
Object o[] = q.toArray(null); |
637 |
< |
shouldThrow(); |
638 |
< |
} catch (NullPointerException success) {} |
613 |
> |
assertSame(ints[i], q.poll()); |
614 |
|
} |
615 |
|
|
616 |
|
/** |
617 |
< |
* toArray with incompatible array type throws CCE |
617 |
> |
* toArray(incompatible array type) throws ArrayStoreException |
618 |
|
*/ |
619 |
|
public void testToArray1_BadArg() { |
620 |
|
ArrayBlockingQueue q = populatedQueue(SIZE); |
621 |
|
try { |
622 |
< |
Object o[] = q.toArray(new String[10]); |
622 |
> |
q.toArray(new String[10]); |
623 |
|
shouldThrow(); |
624 |
|
} catch (ArrayStoreException success) {} |
625 |
|
} |
626 |
|
|
652 |
– |
|
627 |
|
/** |
628 |
|
* iterator iterates through all elements |
629 |
|
*/ |
687 |
|
assertEquals(0, q.size()); |
688 |
|
} |
689 |
|
|
716 |
– |
|
690 |
|
/** |
691 |
|
* toString contains toStrings of elements |
692 |
|
*/ |
694 |
|
ArrayBlockingQueue q = populatedQueue(SIZE); |
695 |
|
String s = q.toString(); |
696 |
|
for (int i = 0; i < SIZE; ++i) { |
697 |
< |
assertTrue(s.indexOf(String.valueOf(i)) >= 0); |
697 |
> |
assertTrue(s.contains(String.valueOf(i))); |
698 |
|
} |
699 |
|
} |
700 |
|
|
728 |
– |
|
701 |
|
/** |
702 |
|
* offer transfers elements across Executor tasks |
703 |
|
*/ |
706 |
|
q.add(one); |
707 |
|
q.add(two); |
708 |
|
ExecutorService executor = Executors.newFixedThreadPool(2); |
709 |
+ |
final CheckedBarrier threadsStarted = new CheckedBarrier(2); |
710 |
|
executor.execute(new CheckedRunnable() { |
711 |
|
public void realRun() throws InterruptedException { |
712 |
|
assertFalse(q.offer(three)); |
713 |
< |
assertTrue(q.offer(three, MEDIUM_DELAY_MS, MILLISECONDS)); |
713 |
> |
threadsStarted.await(); |
714 |
> |
assertTrue(q.offer(three, LONG_DELAY_MS, MILLISECONDS)); |
715 |
|
assertEquals(0, q.remainingCapacity()); |
716 |
|
}}); |
717 |
|
|
718 |
|
executor.execute(new CheckedRunnable() { |
719 |
|
public void realRun() throws InterruptedException { |
720 |
< |
Thread.sleep(SMALL_DELAY_MS); |
720 |
> |
threadsStarted.await(); |
721 |
> |
assertEquals(0, q.remainingCapacity()); |
722 |
|
assertSame(one, q.take()); |
723 |
|
}}); |
724 |
|
|
726 |
|
} |
727 |
|
|
728 |
|
/** |
729 |
< |
* poll retrieves elements across Executor threads |
729 |
> |
* timed poll retrieves elements across Executor threads |
730 |
|
*/ |
731 |
|
public void testPollInExecutor() { |
732 |
|
final ArrayBlockingQueue q = new ArrayBlockingQueue(2); |
733 |
+ |
final CheckedBarrier threadsStarted = new CheckedBarrier(2); |
734 |
|
ExecutorService executor = Executors.newFixedThreadPool(2); |
735 |
|
executor.execute(new CheckedRunnable() { |
736 |
|
public void realRun() throws InterruptedException { |
737 |
|
assertNull(q.poll()); |
738 |
< |
assertSame(one, q.poll(MEDIUM_DELAY_MS, MILLISECONDS)); |
739 |
< |
assertTrue(q.isEmpty()); |
738 |
> |
threadsStarted.await(); |
739 |
> |
assertSame(one, q.poll(LONG_DELAY_MS, MILLISECONDS)); |
740 |
> |
checkEmpty(q); |
741 |
|
}}); |
742 |
|
|
743 |
|
executor.execute(new CheckedRunnable() { |
744 |
|
public void realRun() throws InterruptedException { |
745 |
< |
Thread.sleep(SMALL_DELAY_MS); |
745 |
> |
threadsStarted.await(); |
746 |
|
q.put(one); |
747 |
|
}}); |
748 |
|
|
753 |
|
* A deserialized serialized queue has same elements in same order |
754 |
|
*/ |
755 |
|
public void testSerialization() throws Exception { |
756 |
< |
ArrayBlockingQueue q = populatedQueue(SIZE); |
756 |
> |
Queue x = populatedQueue(SIZE); |
757 |
> |
Queue y = serialClone(x); |
758 |
|
|
759 |
< |
ByteArrayOutputStream bout = new ByteArrayOutputStream(10000); |
760 |
< |
ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout)); |
761 |
< |
out.writeObject(q); |
762 |
< |
out.close(); |
763 |
< |
|
764 |
< |
ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray()); |
765 |
< |
ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin)); |
766 |
< |
ArrayBlockingQueue r = (ArrayBlockingQueue)in.readObject(); |
767 |
< |
assertEquals(q.size(), r.size()); |
790 |
< |
while (!q.isEmpty()) |
791 |
< |
assertEquals(q.remove(), r.remove()); |
792 |
< |
} |
793 |
< |
|
794 |
< |
/** |
795 |
< |
* drainTo(null) throws NPE |
796 |
< |
*/ |
797 |
< |
public void testDrainToNull() { |
798 |
< |
ArrayBlockingQueue q = populatedQueue(SIZE); |
799 |
< |
try { |
800 |
< |
q.drainTo(null); |
801 |
< |
shouldThrow(); |
802 |
< |
} catch (NullPointerException success) {} |
803 |
< |
} |
804 |
< |
|
805 |
< |
/** |
806 |
< |
* drainTo(this) throws IAE |
807 |
< |
*/ |
808 |
< |
public void testDrainToSelf() { |
809 |
< |
ArrayBlockingQueue q = populatedQueue(SIZE); |
810 |
< |
try { |
811 |
< |
q.drainTo(q); |
812 |
< |
shouldThrow(); |
813 |
< |
} catch (IllegalArgumentException success) {} |
759 |
> |
assertTrue(x != y); |
760 |
> |
assertEquals(x.size(), y.size()); |
761 |
> |
assertEquals(x.toString(), y.toString()); |
762 |
> |
assertTrue(Arrays.equals(x.toArray(), y.toArray())); |
763 |
> |
while (!x.isEmpty()) { |
764 |
> |
assertFalse(y.isEmpty()); |
765 |
> |
assertEquals(x.remove(), y.remove()); |
766 |
> |
} |
767 |
> |
assertTrue(y.isEmpty()); |
768 |
|
} |
769 |
|
|
770 |
|
/** |
774 |
|
ArrayBlockingQueue q = populatedQueue(SIZE); |
775 |
|
ArrayList l = new ArrayList(); |
776 |
|
q.drainTo(l); |
777 |
< |
assertEquals(q.size(), 0); |
778 |
< |
assertEquals(l.size(), SIZE); |
777 |
> |
assertEquals(0, q.size()); |
778 |
> |
assertEquals(SIZE, l.size()); |
779 |
|
for (int i = 0; i < SIZE; ++i) |
780 |
|
assertEquals(l.get(i), new Integer(i)); |
781 |
|
q.add(zero); |
785 |
|
assertTrue(q.contains(one)); |
786 |
|
l.clear(); |
787 |
|
q.drainTo(l); |
788 |
< |
assertEquals(q.size(), 0); |
789 |
< |
assertEquals(l.size(), 2); |
788 |
> |
assertEquals(0, q.size()); |
789 |
> |
assertEquals(2, l.size()); |
790 |
|
for (int i = 0; i < 2; ++i) |
791 |
|
assertEquals(l.get(i), new Integer(i)); |
792 |
|
} |
812 |
|
} |
813 |
|
|
814 |
|
/** |
861 |
– |
* drainTo(null, n) throws NPE |
862 |
– |
*/ |
863 |
– |
public void testDrainToNullN() { |
864 |
– |
ArrayBlockingQueue q = populatedQueue(SIZE); |
865 |
– |
try { |
866 |
– |
q.drainTo(null, 0); |
867 |
– |
shouldThrow(); |
868 |
– |
} catch (NullPointerException success) {} |
869 |
– |
} |
870 |
– |
|
871 |
– |
/** |
872 |
– |
* drainTo(this, n) throws IAE |
873 |
– |
*/ |
874 |
– |
public void testDrainToSelfN() { |
875 |
– |
ArrayBlockingQueue q = populatedQueue(SIZE); |
876 |
– |
try { |
877 |
– |
q.drainTo(q, 0); |
878 |
– |
shouldThrow(); |
879 |
– |
} catch (IllegalArgumentException success) {} |
880 |
– |
} |
881 |
– |
|
882 |
– |
/** |
815 |
|
* drainTo(c, n) empties first min(n, size) elements of queue into c |
816 |
|
*/ |
817 |
|
public void testDrainToN() { |