6 |
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* Pat Fisher, Mike Judd. |
7 |
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*/ |
8 |
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|
9 |
– |
|
10 |
– |
import junit.framework.*; |
11 |
– |
import java.util.*; |
12 |
– |
import java.util.concurrent.*; |
9 |
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import static java.util.concurrent.TimeUnit.MILLISECONDS; |
10 |
< |
import java.io.*; |
10 |
> |
|
11 |
> |
import java.util.ArrayList; |
12 |
> |
import java.util.Arrays; |
13 |
> |
import java.util.Collection; |
14 |
> |
import java.util.Collections; |
15 |
> |
import java.util.Iterator; |
16 |
> |
import java.util.NoSuchElementException; |
17 |
> |
import java.util.Queue; |
18 |
> |
import java.util.concurrent.ArrayBlockingQueue; |
19 |
> |
import java.util.concurrent.BlockingQueue; |
20 |
> |
import java.util.concurrent.CountDownLatch; |
21 |
> |
import java.util.concurrent.Executors; |
22 |
> |
import java.util.concurrent.ExecutorService; |
23 |
> |
import java.util.concurrent.ThreadLocalRandom; |
24 |
> |
|
25 |
> |
import junit.framework.Test; |
26 |
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|
27 |
|
public class ArrayBlockingQueueTest extends JSR166TestCase { |
28 |
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|
29 |
+ |
public static void main(String[] args) { |
30 |
+ |
main(suite(), args); |
31 |
+ |
} |
32 |
+ |
|
33 |
+ |
public static Test suite() { |
34 |
+ |
class Implementation implements CollectionImplementation { |
35 |
+ |
public Class<?> klazz() { return ArrayBlockingQueue.class; } |
36 |
+ |
public Collection emptyCollection() { |
37 |
+ |
boolean fair = ThreadLocalRandom.current().nextBoolean(); |
38 |
+ |
return populatedQueue(0, SIZE, 2 * SIZE, fair); |
39 |
+ |
} |
40 |
+ |
public Object makeElement(int i) { return i; } |
41 |
+ |
public boolean isConcurrent() { return true; } |
42 |
+ |
public boolean permitsNulls() { return false; } |
43 |
+ |
} |
44 |
+ |
|
45 |
+ |
return newTestSuite( |
46 |
+ |
ArrayBlockingQueueTest.class, |
47 |
+ |
new Fair().testSuite(), |
48 |
+ |
new NonFair().testSuite(), |
49 |
+ |
CollectionTest.testSuite(new Implementation())); |
50 |
+ |
} |
51 |
+ |
|
52 |
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public static class Fair extends BlockingQueueTest { |
53 |
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protected BlockingQueue emptyCollection() { |
54 |
< |
return new ArrayBlockingQueue(20, true); |
54 |
> |
return populatedQueue(0, SIZE, 2 * SIZE, true); |
55 |
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} |
56 |
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} |
57 |
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|
58 |
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public static class NonFair extends BlockingQueueTest { |
59 |
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protected BlockingQueue emptyCollection() { |
60 |
< |
return new ArrayBlockingQueue(20, false); |
60 |
> |
return populatedQueue(0, SIZE, 2 * SIZE, false); |
61 |
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} |
62 |
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} |
63 |
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|
64 |
< |
public static void main(String[] args) { |
65 |
< |
junit.textui.TestRunner.run(suite()); |
66 |
< |
} |
67 |
< |
|
68 |
< |
public static Test suite() { |
69 |
< |
return newTestSuite(ArrayBlockingQueueTest.class, |
36 |
< |
new Fair().testSuite(), |
37 |
< |
new NonFair().testSuite()); |
64 |
> |
/** |
65 |
> |
* Returns a new queue of given size containing consecutive |
66 |
> |
* Integers 0 ... n - 1. |
67 |
> |
*/ |
68 |
> |
static ArrayBlockingQueue<Integer> populatedQueue(int n) { |
69 |
> |
return populatedQueue(n, n, n, false); |
70 |
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} |
71 |
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|
72 |
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/** |
73 |
< |
* Create a queue of given size containing consecutive |
74 |
< |
* Integers 0 ... n. |
73 |
> |
* Returns a new queue of given size containing consecutive |
74 |
> |
* Integers 0 ... n - 1, with given capacity range and fairness. |
75 |
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*/ |
76 |
< |
private ArrayBlockingQueue<Integer> populatedQueue(int n) { |
77 |
< |
ArrayBlockingQueue<Integer> q = new ArrayBlockingQueue<Integer>(n); |
76 |
> |
static ArrayBlockingQueue<Integer> populatedQueue( |
77 |
> |
int size, int minCapacity, int maxCapacity, boolean fair) { |
78 |
> |
ThreadLocalRandom rnd = ThreadLocalRandom.current(); |
79 |
> |
int capacity = rnd.nextInt(minCapacity, maxCapacity + 1); |
80 |
> |
ArrayBlockingQueue<Integer> q = new ArrayBlockingQueue<>(capacity); |
81 |
|
assertTrue(q.isEmpty()); |
82 |
< |
for (int i = 0; i < n; i++) |
83 |
< |
assertTrue(q.offer(new Integer(i))); |
84 |
< |
assertFalse(q.isEmpty()); |
85 |
< |
assertEquals(0, q.remainingCapacity()); |
86 |
< |
assertEquals(n, q.size()); |
82 |
> |
// shuffle circular array elements so they wrap |
83 |
> |
{ |
84 |
> |
int n = rnd.nextInt(capacity); |
85 |
> |
for (int i = 0; i < n; i++) q.add(42); |
86 |
> |
for (int i = 0; i < n; i++) q.remove(); |
87 |
> |
} |
88 |
> |
for (int i = 0; i < size; i++) |
89 |
> |
assertTrue(q.offer((Integer) i)); |
90 |
> |
assertEquals(size == 0, q.isEmpty()); |
91 |
> |
assertEquals(capacity - size, q.remainingCapacity()); |
92 |
> |
assertEquals(size, q.size()); |
93 |
> |
if (size > 0) |
94 |
> |
assertEquals((Integer) 0, q.peek()); |
95 |
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return q; |
96 |
|
} |
97 |
|
|
105 |
|
/** |
106 |
|
* Constructor throws IAE if capacity argument nonpositive |
107 |
|
*/ |
108 |
< |
public void testConstructor2() { |
109 |
< |
try { |
110 |
< |
ArrayBlockingQueue q = new ArrayBlockingQueue(0); |
111 |
< |
shouldThrow(); |
112 |
< |
} catch (IllegalArgumentException success) {} |
108 |
> |
public void testConstructor_nonPositiveCapacity() { |
109 |
> |
for (int i : new int[] { 0, -1, Integer.MIN_VALUE }) { |
110 |
> |
try { |
111 |
> |
new ArrayBlockingQueue(i); |
112 |
> |
shouldThrow(); |
113 |
> |
} catch (IllegalArgumentException success) {} |
114 |
> |
for (boolean fair : new boolean[] { true, false }) { |
115 |
> |
try { |
116 |
> |
new ArrayBlockingQueue(i, fair); |
117 |
> |
shouldThrow(); |
118 |
> |
} catch (IllegalArgumentException success) {} |
119 |
> |
} |
120 |
> |
} |
121 |
|
} |
122 |
|
|
123 |
|
/** |
124 |
|
* Initializing from null Collection throws NPE |
125 |
|
*/ |
126 |
< |
public void testConstructor3() { |
126 |
> |
public void testConstructor_nullCollection() { |
127 |
|
try { |
128 |
< |
ArrayBlockingQueue q = new ArrayBlockingQueue(1, true, null); |
128 |
> |
new ArrayBlockingQueue(1, true, null); |
129 |
|
shouldThrow(); |
130 |
|
} catch (NullPointerException success) {} |
131 |
|
} |
134 |
|
* Initializing from Collection of null elements throws NPE |
135 |
|
*/ |
136 |
|
public void testConstructor4() { |
137 |
+ |
Collection<Integer> elements = Arrays.asList(new Integer[SIZE]); |
138 |
|
try { |
139 |
< |
Integer[] ints = new Integer[SIZE]; |
88 |
< |
ArrayBlockingQueue q = new ArrayBlockingQueue(SIZE, false, Arrays.asList(ints)); |
139 |
> |
new ArrayBlockingQueue(SIZE, false, elements); |
140 |
|
shouldThrow(); |
141 |
|
} catch (NullPointerException success) {} |
142 |
|
} |
145 |
|
* Initializing from Collection with some null elements throws NPE |
146 |
|
*/ |
147 |
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public void testConstructor5() { |
148 |
+ |
Integer[] ints = new Integer[SIZE]; |
149 |
+ |
for (int i = 0; i < SIZE - 1; ++i) |
150 |
+ |
ints[i] = i; |
151 |
+ |
Collection<Integer> elements = Arrays.asList(ints); |
152 |
|
try { |
153 |
< |
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)); |
153 |
> |
new ArrayBlockingQueue(SIZE, false, elements); |
154 |
|
shouldThrow(); |
155 |
|
} catch (NullPointerException success) {} |
156 |
|
} |
158 |
|
/** |
159 |
|
* Initializing from too large collection throws IAE |
160 |
|
*/ |
161 |
< |
public void testConstructor6() { |
161 |
> |
public void testConstructor_collectionTooLarge() { |
162 |
> |
// just barely fits - succeeds |
163 |
> |
new ArrayBlockingQueue(SIZE, false, |
164 |
> |
Collections.nCopies(SIZE, "")); |
165 |
|
try { |
166 |
< |
Integer[] ints = new Integer[SIZE]; |
167 |
< |
for (int i = 0; i < SIZE; ++i) |
113 |
< |
ints[i] = new Integer(i); |
114 |
< |
ArrayBlockingQueue q = new ArrayBlockingQueue(1, false, Arrays.asList(ints)); |
166 |
> |
new ArrayBlockingQueue(SIZE - 1, false, |
167 |
> |
Collections.nCopies(SIZE, "")); |
168 |
|
shouldThrow(); |
169 |
|
} catch (IllegalArgumentException success) {} |
170 |
|
} |
175 |
|
public void testConstructor7() { |
176 |
|
Integer[] ints = new Integer[SIZE]; |
177 |
|
for (int i = 0; i < SIZE; ++i) |
178 |
< |
ints[i] = new Integer(i); |
179 |
< |
ArrayBlockingQueue q = new ArrayBlockingQueue(SIZE, true, Arrays.asList(ints)); |
178 |
> |
ints[i] = i; |
179 |
> |
Collection<Integer> elements = Arrays.asList(ints); |
180 |
> |
ArrayBlockingQueue q = new ArrayBlockingQueue(SIZE, true, elements); |
181 |
|
for (int i = 0; i < SIZE; ++i) |
182 |
|
assertEquals(ints[i], q.poll()); |
183 |
|
} |
186 |
|
* Queue transitions from empty to full when elements added |
187 |
|
*/ |
188 |
|
public void testEmptyFull() { |
189 |
< |
ArrayBlockingQueue q = new ArrayBlockingQueue(2); |
189 |
> |
BlockingQueue q = populatedQueue(0, 2, 2, false); |
190 |
|
assertTrue(q.isEmpty()); |
191 |
|
assertEquals(2, q.remainingCapacity()); |
192 |
|
q.add(one); |
193 |
|
assertFalse(q.isEmpty()); |
194 |
< |
q.add(two); |
194 |
> |
assertTrue(q.offer(two)); |
195 |
|
assertFalse(q.isEmpty()); |
196 |
|
assertEquals(0, q.remainingCapacity()); |
197 |
|
assertFalse(q.offer(three)); |
201 |
|
* remainingCapacity decreases on add, increases on remove |
202 |
|
*/ |
203 |
|
public void testRemainingCapacity() { |
204 |
< |
ArrayBlockingQueue q = populatedQueue(SIZE); |
205 |
< |
for (int i = 0; i < SIZE; ++i) { |
206 |
< |
assertEquals(i, q.remainingCapacity()); |
207 |
< |
assertEquals(SIZE-i, q.size()); |
208 |
< |
q.remove(); |
204 |
> |
int size = ThreadLocalRandom.current().nextInt(1, SIZE); |
205 |
> |
BlockingQueue q = populatedQueue(size, size, 2 * size, false); |
206 |
> |
int spare = q.remainingCapacity(); |
207 |
> |
int capacity = spare + size; |
208 |
> |
for (int i = 0; i < size; i++) { |
209 |
> |
assertEquals(spare + i, q.remainingCapacity()); |
210 |
> |
assertEquals(capacity, q.size() + q.remainingCapacity()); |
211 |
> |
assertEquals(i, q.remove()); |
212 |
|
} |
213 |
< |
for (int i = 0; i < SIZE; ++i) { |
214 |
< |
assertEquals(SIZE-i, q.remainingCapacity()); |
215 |
< |
assertEquals(i, q.size()); |
216 |
< |
q.add(new Integer(i)); |
213 |
> |
for (int i = 0; i < size; i++) { |
214 |
> |
assertEquals(capacity - i, q.remainingCapacity()); |
215 |
> |
assertEquals(capacity, q.size() + q.remainingCapacity()); |
216 |
> |
assertTrue(q.add(i)); |
217 |
|
} |
218 |
|
} |
219 |
|
|
220 |
|
/** |
164 |
– |
* offer(null) throws NPE |
165 |
– |
*/ |
166 |
– |
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 |
– |
/** |
221 |
|
* Offer succeeds if not full; fails if full |
222 |
|
*/ |
223 |
|
public void testOffer() { |
230 |
|
* add succeeds if not full; throws ISE if full |
231 |
|
*/ |
232 |
|
public void testAdd() { |
233 |
+ |
ArrayBlockingQueue q = new ArrayBlockingQueue(SIZE); |
234 |
+ |
for (int i = 0; i < SIZE; i++) assertTrue(q.add((Integer) i)); |
235 |
+ |
assertEquals(0, q.remainingCapacity()); |
236 |
|
try { |
237 |
< |
ArrayBlockingQueue q = new ArrayBlockingQueue(SIZE); |
200 |
< |
for (int i = 0; i < SIZE; ++i) { |
201 |
< |
assertTrue(q.add(new Integer(i))); |
202 |
< |
} |
203 |
< |
assertEquals(0, q.remainingCapacity()); |
204 |
< |
q.add(new Integer(SIZE)); |
237 |
> |
q.add((Integer) SIZE); |
238 |
|
shouldThrow(); |
239 |
|
} catch (IllegalStateException success) {} |
240 |
|
} |
241 |
|
|
242 |
|
/** |
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 |
– |
/** |
243 |
|
* addAll(this) throws IAE |
244 |
|
*/ |
245 |
|
public void testAddAllSelf() { |
246 |
+ |
ArrayBlockingQueue q = populatedQueue(SIZE); |
247 |
|
try { |
225 |
– |
ArrayBlockingQueue q = populatedQueue(SIZE); |
248 |
|
q.addAll(q); |
249 |
|
shouldThrow(); |
250 |
|
} catch (IllegalArgumentException success) {} |
251 |
|
} |
252 |
|
|
231 |
– |
|
232 |
– |
/** |
233 |
– |
* 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 |
– |
|
253 |
|
/** |
254 |
|
* addAll of a collection with any null elements throws NPE after |
255 |
|
* possibly adding some elements |
256 |
|
*/ |
257 |
|
public void testAddAll3() { |
258 |
+ |
ArrayBlockingQueue q = new ArrayBlockingQueue(SIZE); |
259 |
+ |
Integer[] ints = new Integer[SIZE]; |
260 |
+ |
for (int i = 0; i < SIZE - 1; ++i) |
261 |
+ |
ints[i] = new Integer(i); |
262 |
|
try { |
250 |
– |
ArrayBlockingQueue q = new ArrayBlockingQueue(SIZE); |
251 |
– |
Integer[] ints = new Integer[SIZE]; |
252 |
– |
for (int i = 0; i < SIZE-1; ++i) |
253 |
– |
ints[i] = new Integer(i); |
263 |
|
q.addAll(Arrays.asList(ints)); |
264 |
|
shouldThrow(); |
265 |
|
} catch (NullPointerException success) {} |
268 |
|
/** |
269 |
|
* addAll throws ISE if not enough room |
270 |
|
*/ |
271 |
< |
public void testAddAll4() { |
271 |
> |
public void testAddAll_insufficientSpace() { |
272 |
> |
int size = ThreadLocalRandom.current().nextInt(1, SIZE); |
273 |
> |
ArrayBlockingQueue q = populatedQueue(0, size, size, false); |
274 |
> |
// Just fits: |
275 |
> |
q.addAll(populatedQueue(size, size, 2 * size, false)); |
276 |
> |
assertEquals(0, q.remainingCapacity()); |
277 |
> |
assertEquals(size, q.size()); |
278 |
> |
assertEquals(0, q.peek()); |
279 |
|
try { |
280 |
< |
ArrayBlockingQueue q = new ArrayBlockingQueue(1); |
281 |
< |
Integer[] ints = new Integer[SIZE]; |
266 |
< |
for (int i = 0; i < SIZE; ++i) |
267 |
< |
ints[i] = new Integer(i); |
268 |
< |
q.addAll(Arrays.asList(ints)); |
280 |
> |
q = populatedQueue(0, size, size, false); |
281 |
> |
q.addAll(Collections.nCopies(size + 1, 42)); |
282 |
|
shouldThrow(); |
283 |
|
} catch (IllegalStateException success) {} |
284 |
|
} |
299 |
|
} |
300 |
|
|
301 |
|
/** |
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 |
– |
/** |
302 |
|
* all elements successfully put are contained |
303 |
|
*/ |
304 |
|
public void testPut() throws InterruptedException { |
305 |
|
ArrayBlockingQueue q = new ArrayBlockingQueue(SIZE); |
306 |
|
for (int i = 0; i < SIZE; ++i) { |
307 |
< |
Integer I = new Integer(i); |
308 |
< |
q.put(I); |
309 |
< |
assertTrue(q.contains(I)); |
307 |
> |
Integer x = new Integer(i); |
308 |
> |
q.put(x); |
309 |
> |
assertTrue(q.contains(x)); |
310 |
|
} |
311 |
|
assertEquals(0, q.remainingCapacity()); |
312 |
|
} |
316 |
|
*/ |
317 |
|
public void testBlockingPut() throws InterruptedException { |
318 |
|
final ArrayBlockingQueue q = new ArrayBlockingQueue(SIZE); |
319 |
< |
Thread t = new Thread(new CheckedRunnable() { |
319 |
> |
final CountDownLatch pleaseInterrupt = new CountDownLatch(1); |
320 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
321 |
|
public void realRun() throws InterruptedException { |
322 |
|
for (int i = 0; i < SIZE; ++i) |
323 |
|
q.put(i); |
324 |
|
assertEquals(SIZE, q.size()); |
325 |
|
assertEquals(0, q.remainingCapacity()); |
326 |
+ |
|
327 |
+ |
Thread.currentThread().interrupt(); |
328 |
+ |
try { |
329 |
+ |
q.put(99); |
330 |
+ |
shouldThrow(); |
331 |
+ |
} catch (InterruptedException success) {} |
332 |
+ |
assertFalse(Thread.interrupted()); |
333 |
+ |
|
334 |
+ |
pleaseInterrupt.countDown(); |
335 |
|
try { |
336 |
|
q.put(99); |
337 |
|
shouldThrow(); |
338 |
|
} catch (InterruptedException success) {} |
339 |
+ |
assertFalse(Thread.interrupted()); |
340 |
|
}}); |
341 |
|
|
342 |
< |
t.start(); |
343 |
< |
delay(SHORT_DELAY_MS); |
342 |
> |
await(pleaseInterrupt); |
343 |
> |
assertThreadStaysAlive(t); |
344 |
|
t.interrupt(); |
345 |
< |
t.join(); |
345 |
> |
awaitTermination(t); |
346 |
|
assertEquals(SIZE, q.size()); |
347 |
|
assertEquals(0, q.remainingCapacity()); |
348 |
|
} |
349 |
|
|
350 |
|
/** |
351 |
< |
* put blocks waiting for take when full |
351 |
> |
* put blocks interruptibly waiting for take when full |
352 |
|
*/ |
353 |
|
public void testPutWithTake() throws InterruptedException { |
354 |
|
final int capacity = 2; |
355 |
|
final ArrayBlockingQueue q = new ArrayBlockingQueue(capacity); |
356 |
< |
Thread t = new Thread(new CheckedRunnable() { |
356 |
> |
final CountDownLatch pleaseTake = new CountDownLatch(1); |
357 |
> |
final CountDownLatch pleaseInterrupt = new CountDownLatch(1); |
358 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
359 |
|
public void realRun() throws InterruptedException { |
360 |
< |
for (int i = 0; i < capacity + 1; i++) |
360 |
> |
for (int i = 0; i < capacity; i++) |
361 |
|
q.put(i); |
362 |
+ |
pleaseTake.countDown(); |
363 |
+ |
q.put(86); |
364 |
+ |
|
365 |
+ |
pleaseInterrupt.countDown(); |
366 |
|
try { |
367 |
|
q.put(99); |
368 |
|
shouldThrow(); |
369 |
|
} catch (InterruptedException success) {} |
370 |
+ |
assertFalse(Thread.interrupted()); |
371 |
|
}}); |
372 |
|
|
373 |
< |
t.start(); |
374 |
< |
delay(SHORT_DELAY_MS); |
355 |
< |
assertEquals(q.remainingCapacity(), 0); |
373 |
> |
await(pleaseTake); |
374 |
> |
assertEquals(0, q.remainingCapacity()); |
375 |
|
assertEquals(0, q.take()); |
376 |
< |
delay(SHORT_DELAY_MS); |
376 |
> |
|
377 |
> |
await(pleaseInterrupt); |
378 |
> |
assertThreadStaysAlive(t); |
379 |
|
t.interrupt(); |
380 |
< |
t.join(); |
381 |
< |
assertEquals(q.remainingCapacity(), 0); |
380 |
> |
awaitTermination(t); |
381 |
> |
assertEquals(0, q.remainingCapacity()); |
382 |
|
} |
383 |
|
|
384 |
|
/** |
386 |
|
*/ |
387 |
|
public void testTimedOffer() throws InterruptedException { |
388 |
|
final ArrayBlockingQueue q = new ArrayBlockingQueue(2); |
389 |
< |
Thread t = new Thread(new CheckedRunnable() { |
389 |
> |
final CountDownLatch pleaseInterrupt = new CountDownLatch(1); |
390 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
391 |
|
public void realRun() throws InterruptedException { |
392 |
|
q.put(new Object()); |
393 |
|
q.put(new Object()); |
394 |
< |
assertFalse(q.offer(new Object(), SHORT_DELAY_MS/2, MILLISECONDS)); |
394 |
> |
long startTime = System.nanoTime(); |
395 |
> |
assertFalse(q.offer(new Object(), timeoutMillis(), MILLISECONDS)); |
396 |
> |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
397 |
> |
pleaseInterrupt.countDown(); |
398 |
|
try { |
399 |
< |
q.offer(new Object(), LONG_DELAY_MS, MILLISECONDS); |
399 |
> |
q.offer(new Object(), 2 * LONG_DELAY_MS, MILLISECONDS); |
400 |
|
shouldThrow(); |
401 |
|
} catch (InterruptedException success) {} |
402 |
|
}}); |
403 |
|
|
404 |
< |
t.start(); |
405 |
< |
delay(SHORT_DELAY_MS); |
404 |
> |
await(pleaseInterrupt); |
405 |
> |
assertThreadStaysAlive(t); |
406 |
|
t.interrupt(); |
407 |
< |
t.join(); |
407 |
> |
awaitTermination(t); |
408 |
|
} |
409 |
|
|
410 |
|
/** |
422 |
|
*/ |
423 |
|
public void testBlockingTake() throws InterruptedException { |
424 |
|
final ArrayBlockingQueue q = populatedQueue(SIZE); |
425 |
< |
Thread t = new Thread(new CheckedRunnable() { |
425 |
> |
final CountDownLatch pleaseInterrupt = new CountDownLatch(1); |
426 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
427 |
|
public void realRun() throws InterruptedException { |
428 |
< |
for (int i = 0; i < SIZE; ++i) { |
429 |
< |
assertEquals(i, q.take()); |
430 |
< |
} |
428 |
> |
for (int i = 0; i < SIZE; i++) assertEquals(i, q.take()); |
429 |
> |
|
430 |
> |
Thread.currentThread().interrupt(); |
431 |
|
try { |
432 |
|
q.take(); |
433 |
|
shouldThrow(); |
434 |
|
} catch (InterruptedException success) {} |
435 |
+ |
assertFalse(Thread.interrupted()); |
436 |
+ |
|
437 |
+ |
pleaseInterrupt.countDown(); |
438 |
+ |
try { |
439 |
+ |
q.take(); |
440 |
+ |
shouldThrow(); |
441 |
+ |
} catch (InterruptedException success) {} |
442 |
+ |
assertFalse(Thread.interrupted()); |
443 |
|
}}); |
444 |
|
|
445 |
< |
t.start(); |
446 |
< |
delay(SHORT_DELAY_MS); |
445 |
> |
await(pleaseInterrupt); |
446 |
> |
assertThreadBlocks(t, Thread.State.WAITING); |
447 |
|
t.interrupt(); |
448 |
< |
t.join(); |
448 |
> |
awaitTermination(t); |
449 |
|
} |
450 |
|
|
417 |
– |
|
451 |
|
/** |
452 |
|
* poll succeeds unless empty |
453 |
|
*/ |
468 |
|
assertEquals(i, q.poll(0, MILLISECONDS)); |
469 |
|
} |
470 |
|
assertNull(q.poll(0, MILLISECONDS)); |
471 |
+ |
checkEmpty(q); |
472 |
|
} |
473 |
|
|
474 |
|
/** |
477 |
|
public void testTimedPoll() throws InterruptedException { |
478 |
|
ArrayBlockingQueue q = populatedQueue(SIZE); |
479 |
|
for (int i = 0; i < SIZE; ++i) { |
480 |
< |
assertEquals(i, q.poll(SHORT_DELAY_MS, MILLISECONDS)); |
481 |
< |
} |
482 |
< |
assertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS)); |
480 |
> |
long startTime = System.nanoTime(); |
481 |
> |
assertEquals(i, q.poll(LONG_DELAY_MS, MILLISECONDS)); |
482 |
> |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
483 |
> |
} |
484 |
> |
long startTime = System.nanoTime(); |
485 |
> |
assertNull(q.poll(timeoutMillis(), MILLISECONDS)); |
486 |
> |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
487 |
> |
checkEmpty(q); |
488 |
|
} |
489 |
|
|
490 |
|
/** |
496 |
|
final CountDownLatch aboutToWait = new CountDownLatch(1); |
497 |
|
Thread t = newStartedThread(new CheckedRunnable() { |
498 |
|
public void realRun() throws InterruptedException { |
499 |
+ |
long startTime = System.nanoTime(); |
500 |
|
for (int i = 0; i < SIZE; ++i) { |
461 |
– |
long t0 = System.nanoTime(); |
501 |
|
assertEquals(i, (int) q.poll(LONG_DELAY_MS, MILLISECONDS)); |
463 |
– |
assertTrue(millisElapsedSince(t0) < SMALL_DELAY_MS); |
502 |
|
} |
465 |
– |
long t0 = System.nanoTime(); |
503 |
|
aboutToWait.countDown(); |
504 |
|
try { |
505 |
< |
q.poll(MEDIUM_DELAY_MS, MILLISECONDS); |
505 |
> |
q.poll(LONG_DELAY_MS, MILLISECONDS); |
506 |
|
shouldThrow(); |
507 |
|
} catch (InterruptedException success) { |
508 |
< |
assertTrue(millisElapsedSince(t0) < MEDIUM_DELAY_MS); |
508 |
> |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
509 |
|
} |
510 |
|
}}); |
511 |
|
|
512 |
< |
aboutToWait.await(); |
513 |
< |
waitForThreadToEnterWaitState(t, SMALL_DELAY_MS); |
512 |
> |
await(aboutToWait); |
513 |
> |
waitForThreadToEnterWaitState(t); |
514 |
|
t.interrupt(); |
515 |
< |
awaitTermination(t, MEDIUM_DELAY_MS); |
515 |
> |
awaitTermination(t); |
516 |
|
checkEmpty(q); |
517 |
|
} |
518 |
|
|
560 |
|
} |
561 |
|
|
562 |
|
/** |
526 |
– |
* remove(x) removes x and returns true if present |
527 |
– |
*/ |
528 |
– |
public void testRemoveElement() { |
529 |
– |
ArrayBlockingQueue q = populatedQueue(SIZE); |
530 |
– |
for (int i = 1; i < SIZE; i+=2) { |
531 |
– |
assertTrue(q.remove(new Integer(i))); |
532 |
– |
} |
533 |
– |
for (int i = 0; i < SIZE; i+=2) { |
534 |
– |
assertTrue(q.remove(new Integer(i))); |
535 |
– |
assertFalse(q.remove(new Integer(i+1))); |
536 |
– |
} |
537 |
– |
assertTrue(q.isEmpty()); |
538 |
– |
} |
539 |
– |
|
540 |
– |
/** |
563 |
|
* contains(x) reports true when elements added but not yet removed |
564 |
|
*/ |
565 |
|
public void testContains() { |
566 |
< |
ArrayBlockingQueue q = populatedQueue(SIZE); |
567 |
< |
for (int i = 0; i < SIZE; ++i) { |
566 |
> |
int size = ThreadLocalRandom.current().nextInt(1, SIZE); |
567 |
> |
ArrayBlockingQueue q = populatedQueue(size, size, 2 * size, false); |
568 |
> |
assertFalse(q.contains(null)); |
569 |
> |
for (int i = 0; i < size; ++i) { |
570 |
|
assertTrue(q.contains(new Integer(i))); |
571 |
|
assertEquals(i, q.poll()); |
572 |
|
assertFalse(q.contains(new Integer(i))); |
577 |
|
* clear removes all elements |
578 |
|
*/ |
579 |
|
public void testClear() { |
580 |
< |
ArrayBlockingQueue q = populatedQueue(SIZE); |
580 |
> |
int size = ThreadLocalRandom.current().nextInt(1, 5); |
581 |
> |
ArrayBlockingQueue q = populatedQueue(size, size, 2 * size, false); |
582 |
> |
int capacity = size + q.remainingCapacity(); |
583 |
|
q.clear(); |
584 |
|
assertTrue(q.isEmpty()); |
585 |
|
assertEquals(0, q.size()); |
586 |
< |
assertEquals(SIZE, q.remainingCapacity()); |
586 |
> |
assertEquals(capacity, q.remainingCapacity()); |
587 |
|
q.add(one); |
588 |
|
assertFalse(q.isEmpty()); |
589 |
|
assertTrue(q.contains(one)); |
619 |
|
assertTrue(changed); |
620 |
|
|
621 |
|
assertTrue(q.containsAll(p)); |
622 |
< |
assertEquals(SIZE-i, q.size()); |
622 |
> |
assertEquals(SIZE - i, q.size()); |
623 |
|
p.remove(); |
624 |
|
} |
625 |
|
} |
632 |
|
ArrayBlockingQueue q = populatedQueue(SIZE); |
633 |
|
ArrayBlockingQueue p = populatedQueue(i); |
634 |
|
assertTrue(q.removeAll(p)); |
635 |
< |
assertEquals(SIZE-i, q.size()); |
635 |
> |
assertEquals(SIZE - i, q.size()); |
636 |
|
for (int j = 0; j < i; ++j) { |
637 |
< |
Integer I = (Integer)(p.remove()); |
638 |
< |
assertFalse(q.contains(I)); |
637 |
> |
Integer x = (Integer)(p.remove()); |
638 |
> |
assertFalse(q.contains(x)); |
639 |
|
} |
640 |
|
} |
641 |
|
} |
642 |
|
|
643 |
< |
/** |
644 |
< |
* toArray contains all elements in FIFO order |
645 |
< |
*/ |
646 |
< |
public void testToArray() { |
647 |
< |
ArrayBlockingQueue q = populatedQueue(SIZE); |
648 |
< |
Object[] o = q.toArray(); |
649 |
< |
for (int i = 0; i < o.length; i++) |
650 |
< |
assertSame(o[i], q.poll()); |
651 |
< |
} |
652 |
< |
|
653 |
< |
/** |
654 |
< |
* toArray(a) contains all elements in FIFO order |
655 |
< |
*/ |
656 |
< |
public void testToArray2() { |
657 |
< |
ArrayBlockingQueue<Integer> q = populatedQueue(SIZE); |
658 |
< |
Integer[] ints = new Integer[SIZE]; |
659 |
< |
Integer[] array = q.toArray(ints); |
660 |
< |
assertSame(ints, array); |
661 |
< |
for (int i = 0; i < ints.length; i++) |
662 |
< |
assertSame(ints[i], q.poll()); |
643 |
> |
void checkToArray(ArrayBlockingQueue<Integer> q) { |
644 |
> |
int size = q.size(); |
645 |
> |
Object[] a1 = q.toArray(); |
646 |
> |
assertEquals(size, a1.length); |
647 |
> |
Integer[] a2 = q.toArray(new Integer[0]); |
648 |
> |
assertEquals(size, a2.length); |
649 |
> |
Integer[] a3 = q.toArray(new Integer[Math.max(0, size - 1)]); |
650 |
> |
assertEquals(size, a3.length); |
651 |
> |
Integer[] a4 = new Integer[size]; |
652 |
> |
assertSame(a4, q.toArray(a4)); |
653 |
> |
Integer[] a5 = new Integer[size + 1]; |
654 |
> |
Arrays.fill(a5, 42); |
655 |
> |
assertSame(a5, q.toArray(a5)); |
656 |
> |
Integer[] a6 = new Integer[size + 2]; |
657 |
> |
Arrays.fill(a6, 42); |
658 |
> |
assertSame(a6, q.toArray(a6)); |
659 |
> |
Object[][] as = { a1, a2, a3, a4, a5, a6 }; |
660 |
> |
for (Object[] a : as) { |
661 |
> |
if (a.length > size) assertNull(a[size]); |
662 |
> |
if (a.length > size + 1) assertEquals(42, a[size + 1]); |
663 |
> |
} |
664 |
> |
Iterator it = q.iterator(); |
665 |
> |
Integer s = q.peek(); |
666 |
> |
for (int i = 0; i < size; i++) { |
667 |
> |
Integer x = (Integer) it.next(); |
668 |
> |
assertEquals(s + i, (int) x); |
669 |
> |
for (Object[] a : as) |
670 |
> |
assertSame(a1[i], x); |
671 |
> |
} |
672 |
|
} |
673 |
|
|
674 |
|
/** |
675 |
< |
* toArray(null) throws NullPointerException |
675 |
> |
* toArray() and toArray(a) contain all elements in FIFO order |
676 |
|
*/ |
677 |
< |
public void testToArray_NullArg() { |
678 |
< |
ArrayBlockingQueue q = populatedQueue(SIZE); |
679 |
< |
try { |
680 |
< |
q.toArray(null); |
681 |
< |
shouldThrow(); |
682 |
< |
} catch (NullPointerException success) {} |
677 |
> |
public void testToArray() { |
678 |
> |
final ThreadLocalRandom rnd = ThreadLocalRandom.current(); |
679 |
> |
final int size = rnd.nextInt(6); |
680 |
> |
final int capacity = Math.max(1, size + rnd.nextInt(size + 1)); |
681 |
> |
ArrayBlockingQueue<Integer> q = new ArrayBlockingQueue<>(capacity); |
682 |
> |
for (int i = 0; i < size; i++) { |
683 |
> |
checkToArray(q); |
684 |
> |
q.add(i); |
685 |
> |
} |
686 |
> |
// Provoke wraparound |
687 |
> |
int added = size * 2; |
688 |
> |
for (int i = 0; i < added; i++) { |
689 |
> |
checkToArray(q); |
690 |
> |
assertEquals((Integer) i, q.poll()); |
691 |
> |
q.add(size + i); |
692 |
> |
} |
693 |
> |
for (int i = 0; i < size; i++) { |
694 |
> |
checkToArray(q); |
695 |
> |
assertEquals((Integer) (added + i), q.poll()); |
696 |
> |
} |
697 |
|
} |
698 |
|
|
699 |
|
/** |
700 |
|
* toArray(incompatible array type) throws ArrayStoreException |
701 |
|
*/ |
702 |
< |
public void testToArray1_BadArg() { |
702 |
> |
public void testToArray_incompatibleArrayType() { |
703 |
|
ArrayBlockingQueue q = populatedQueue(SIZE); |
704 |
|
try { |
705 |
|
q.toArray(new String[10]); |
706 |
|
shouldThrow(); |
707 |
|
} catch (ArrayStoreException success) {} |
708 |
+ |
try { |
709 |
+ |
q.toArray(new String[0]); |
710 |
+ |
shouldThrow(); |
711 |
+ |
} catch (ArrayStoreException success) {} |
712 |
|
} |
713 |
|
|
661 |
– |
|
714 |
|
/** |
715 |
|
* iterator iterates through all elements |
716 |
|
*/ |
717 |
|
public void testIterator() throws InterruptedException { |
718 |
|
ArrayBlockingQueue q = populatedQueue(SIZE); |
719 |
|
Iterator it = q.iterator(); |
720 |
< |
while (it.hasNext()) { |
720 |
> |
int i; |
721 |
> |
for (i = 0; it.hasNext(); i++) |
722 |
> |
assertTrue(q.contains(it.next())); |
723 |
> |
assertEquals(i, SIZE); |
724 |
> |
assertIteratorExhausted(it); |
725 |
> |
|
726 |
> |
it = q.iterator(); |
727 |
> |
for (i = 0; it.hasNext(); i++) |
728 |
|
assertEquals(it.next(), q.take()); |
729 |
< |
} |
729 |
> |
assertEquals(i, SIZE); |
730 |
> |
assertIteratorExhausted(it); |
731 |
> |
} |
732 |
> |
|
733 |
> |
/** |
734 |
> |
* iterator of empty collection has no elements |
735 |
> |
*/ |
736 |
> |
public void testEmptyIterator() { |
737 |
> |
assertIteratorExhausted(new ArrayBlockingQueue(SIZE).iterator()); |
738 |
|
} |
739 |
|
|
740 |
|
/** |
789 |
|
assertEquals(0, q.size()); |
790 |
|
} |
791 |
|
|
725 |
– |
|
792 |
|
/** |
793 |
|
* toString contains toStrings of elements |
794 |
|
*/ |
796 |
|
ArrayBlockingQueue q = populatedQueue(SIZE); |
797 |
|
String s = q.toString(); |
798 |
|
for (int i = 0; i < SIZE; ++i) { |
799 |
< |
assertTrue(s.indexOf(String.valueOf(i)) >= 0); |
799 |
> |
assertTrue(s.contains(String.valueOf(i))); |
800 |
|
} |
801 |
|
} |
802 |
|
|
737 |
– |
|
803 |
|
/** |
804 |
|
* offer transfers elements across Executor tasks |
805 |
|
*/ |
807 |
|
final ArrayBlockingQueue q = new ArrayBlockingQueue(2); |
808 |
|
q.add(one); |
809 |
|
q.add(two); |
810 |
< |
ExecutorService executor = Executors.newFixedThreadPool(2); |
811 |
< |
executor.execute(new CheckedRunnable() { |
812 |
< |
public void realRun() throws InterruptedException { |
813 |
< |
assertFalse(q.offer(three)); |
814 |
< |
assertTrue(q.offer(three, MEDIUM_DELAY_MS, MILLISECONDS)); |
815 |
< |
assertEquals(0, q.remainingCapacity()); |
816 |
< |
}}); |
817 |
< |
|
818 |
< |
executor.execute(new CheckedRunnable() { |
819 |
< |
public void realRun() throws InterruptedException { |
820 |
< |
delay(SMALL_DELAY_MS); |
821 |
< |
assertSame(one, q.take()); |
822 |
< |
}}); |
823 |
< |
|
824 |
< |
joinPool(executor); |
810 |
> |
final CheckedBarrier threadsStarted = new CheckedBarrier(2); |
811 |
> |
final ExecutorService executor = Executors.newFixedThreadPool(2); |
812 |
> |
try (PoolCleaner cleaner = cleaner(executor)) { |
813 |
> |
executor.execute(new CheckedRunnable() { |
814 |
> |
public void realRun() throws InterruptedException { |
815 |
> |
assertFalse(q.offer(three)); |
816 |
> |
threadsStarted.await(); |
817 |
> |
assertTrue(q.offer(three, LONG_DELAY_MS, MILLISECONDS)); |
818 |
> |
assertEquals(0, q.remainingCapacity()); |
819 |
> |
}}); |
820 |
> |
|
821 |
> |
executor.execute(new CheckedRunnable() { |
822 |
> |
public void realRun() throws InterruptedException { |
823 |
> |
threadsStarted.await(); |
824 |
> |
assertEquals(0, q.remainingCapacity()); |
825 |
> |
assertSame(one, q.take()); |
826 |
> |
}}); |
827 |
> |
} |
828 |
|
} |
829 |
|
|
830 |
|
/** |
831 |
< |
* poll retrieves elements across Executor threads |
831 |
> |
* timed poll retrieves elements across Executor threads |
832 |
|
*/ |
833 |
|
public void testPollInExecutor() { |
834 |
|
final ArrayBlockingQueue q = new ArrayBlockingQueue(2); |
835 |
< |
ExecutorService executor = Executors.newFixedThreadPool(2); |
836 |
< |
executor.execute(new CheckedRunnable() { |
837 |
< |
public void realRun() throws InterruptedException { |
838 |
< |
assertNull(q.poll()); |
839 |
< |
assertSame(one, q.poll(MEDIUM_DELAY_MS, MILLISECONDS)); |
840 |
< |
assertTrue(q.isEmpty()); |
841 |
< |
}}); |
842 |
< |
|
843 |
< |
executor.execute(new CheckedRunnable() { |
844 |
< |
public void realRun() throws InterruptedException { |
845 |
< |
delay(SMALL_DELAY_MS); |
846 |
< |
q.put(one); |
847 |
< |
}}); |
848 |
< |
|
849 |
< |
joinPool(executor); |
835 |
> |
final CheckedBarrier threadsStarted = new CheckedBarrier(2); |
836 |
> |
final ExecutorService executor = Executors.newFixedThreadPool(2); |
837 |
> |
try (PoolCleaner cleaner = cleaner(executor)) { |
838 |
> |
executor.execute(new CheckedRunnable() { |
839 |
> |
public void realRun() throws InterruptedException { |
840 |
> |
assertNull(q.poll()); |
841 |
> |
threadsStarted.await(); |
842 |
> |
assertSame(one, q.poll(LONG_DELAY_MS, MILLISECONDS)); |
843 |
> |
checkEmpty(q); |
844 |
> |
}}); |
845 |
> |
|
846 |
> |
executor.execute(new CheckedRunnable() { |
847 |
> |
public void realRun() throws InterruptedException { |
848 |
> |
threadsStarted.await(); |
849 |
> |
q.put(one); |
850 |
> |
}}); |
851 |
> |
} |
852 |
|
} |
853 |
|
|
854 |
|
/** |
855 |
|
* A deserialized serialized queue has same elements in same order |
856 |
|
*/ |
857 |
|
public void testSerialization() throws Exception { |
858 |
< |
ArrayBlockingQueue q = populatedQueue(SIZE); |
859 |
< |
|
790 |
< |
ByteArrayOutputStream bout = new ByteArrayOutputStream(10000); |
791 |
< |
ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout)); |
792 |
< |
out.writeObject(q); |
793 |
< |
out.close(); |
858 |
> |
Queue x = populatedQueue(SIZE); |
859 |
> |
Queue y = serialClone(x); |
860 |
|
|
861 |
< |
ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray()); |
862 |
< |
ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin)); |
863 |
< |
ArrayBlockingQueue r = (ArrayBlockingQueue)in.readObject(); |
864 |
< |
assertEquals(q.size(), r.size()); |
865 |
< |
while (!q.isEmpty()) |
866 |
< |
assertEquals(q.remove(), r.remove()); |
867 |
< |
} |
868 |
< |
|
869 |
< |
/** |
804 |
< |
* drainTo(null) throws NPE |
805 |
< |
*/ |
806 |
< |
public void testDrainToNull() { |
807 |
< |
ArrayBlockingQueue q = populatedQueue(SIZE); |
808 |
< |
try { |
809 |
< |
q.drainTo(null); |
810 |
< |
shouldThrow(); |
811 |
< |
} catch (NullPointerException success) {} |
812 |
< |
} |
813 |
< |
|
814 |
< |
/** |
815 |
< |
* drainTo(this) throws IAE |
816 |
< |
*/ |
817 |
< |
public void testDrainToSelf() { |
818 |
< |
ArrayBlockingQueue q = populatedQueue(SIZE); |
819 |
< |
try { |
820 |
< |
q.drainTo(q); |
821 |
< |
shouldThrow(); |
822 |
< |
} catch (IllegalArgumentException success) {} |
861 |
> |
assertNotSame(x, y); |
862 |
> |
assertEquals(x.size(), y.size()); |
863 |
> |
assertEquals(x.toString(), y.toString()); |
864 |
> |
assertTrue(Arrays.equals(x.toArray(), y.toArray())); |
865 |
> |
while (!x.isEmpty()) { |
866 |
> |
assertFalse(y.isEmpty()); |
867 |
> |
assertEquals(x.remove(), y.remove()); |
868 |
> |
} |
869 |
> |
assertTrue(y.isEmpty()); |
870 |
|
} |
871 |
|
|
872 |
|
/** |
876 |
|
ArrayBlockingQueue q = populatedQueue(SIZE); |
877 |
|
ArrayList l = new ArrayList(); |
878 |
|
q.drainTo(l); |
879 |
< |
assertEquals(q.size(), 0); |
880 |
< |
assertEquals(l.size(), SIZE); |
879 |
> |
assertEquals(0, q.size()); |
880 |
> |
assertEquals(SIZE, l.size()); |
881 |
|
for (int i = 0; i < SIZE; ++i) |
882 |
|
assertEquals(l.get(i), new Integer(i)); |
883 |
|
q.add(zero); |
887 |
|
assertTrue(q.contains(one)); |
888 |
|
l.clear(); |
889 |
|
q.drainTo(l); |
890 |
< |
assertEquals(q.size(), 0); |
891 |
< |
assertEquals(l.size(), 2); |
890 |
> |
assertEquals(0, q.size()); |
891 |
> |
assertEquals(2, l.size()); |
892 |
|
for (int i = 0; i < 2; ++i) |
893 |
|
assertEquals(l.get(i), new Integer(i)); |
894 |
|
} |
900 |
|
final ArrayBlockingQueue q = populatedQueue(SIZE); |
901 |
|
Thread t = new Thread(new CheckedRunnable() { |
902 |
|
public void realRun() throws InterruptedException { |
903 |
< |
q.put(new Integer(SIZE+1)); |
903 |
> |
q.put(new Integer(SIZE + 1)); |
904 |
|
}}); |
905 |
|
|
906 |
|
t.start(); |
914 |
|
} |
915 |
|
|
916 |
|
/** |
870 |
– |
* drainTo(null, n) throws NPE |
871 |
– |
*/ |
872 |
– |
public void testDrainToNullN() { |
873 |
– |
ArrayBlockingQueue q = populatedQueue(SIZE); |
874 |
– |
try { |
875 |
– |
q.drainTo(null, 0); |
876 |
– |
shouldThrow(); |
877 |
– |
} catch (NullPointerException success) {} |
878 |
– |
} |
879 |
– |
|
880 |
– |
/** |
881 |
– |
* drainTo(this, n) throws IAE |
882 |
– |
*/ |
883 |
– |
public void testDrainToSelfN() { |
884 |
– |
ArrayBlockingQueue q = populatedQueue(SIZE); |
885 |
– |
try { |
886 |
– |
q.drainTo(q, 0); |
887 |
– |
shouldThrow(); |
888 |
– |
} catch (IllegalArgumentException success) {} |
889 |
– |
} |
890 |
– |
|
891 |
– |
/** |
917 |
|
* drainTo(c, n) empties first min(n, size) elements of queue into c |
918 |
|
*/ |
919 |
|
public void testDrainToN() { |
920 |
< |
ArrayBlockingQueue q = new ArrayBlockingQueue(SIZE*2); |
920 |
> |
ArrayBlockingQueue q = new ArrayBlockingQueue(SIZE * 2); |
921 |
|
for (int i = 0; i < SIZE + 2; ++i) { |
922 |
|
for (int j = 0; j < SIZE; j++) |
923 |
|
assertTrue(q.offer(new Integer(j))); |
924 |
|
ArrayList l = new ArrayList(); |
925 |
|
q.drainTo(l, i); |
926 |
|
int k = (i < SIZE) ? i : SIZE; |
927 |
< |
assertEquals(l.size(), k); |
928 |
< |
assertEquals(q.size(), SIZE-k); |
927 |
> |
assertEquals(k, l.size()); |
928 |
> |
assertEquals(SIZE - k, q.size()); |
929 |
|
for (int j = 0; j < k; ++j) |
930 |
|
assertEquals(l.get(j), new Integer(j)); |
931 |
< |
while (q.poll() != null) ; |
931 |
> |
do {} while (q.poll() != null); |
932 |
|
} |
933 |
|
} |
934 |
|
|
935 |
+ |
/** |
936 |
+ |
* remove(null), contains(null) always return false |
937 |
+ |
*/ |
938 |
+ |
public void testNeverContainsNull() { |
939 |
+ |
Collection<?>[] qs = { |
940 |
+ |
populatedQueue(0, 1, 10, false), |
941 |
+ |
populatedQueue(2, 2, 10, true), |
942 |
+ |
}; |
943 |
+ |
|
944 |
+ |
for (Collection<?> q : qs) { |
945 |
+ |
assertFalse(q.contains(null)); |
946 |
+ |
assertFalse(q.remove(null)); |
947 |
+ |
} |
948 |
+ |
} |
949 |
|
} |