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/* |
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* Written by Doug Lea with assistance from members of JCP JSR-166 |
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* Expert Group and released to the public domain, as explained at |
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* http://creativecommons.org/licenses/publicdomain |
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* http://creativecommons.org/publicdomain/zero/1.0/ |
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* Other contributors include Andrew Wright, Jeffrey Hayes, |
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* Pat Fisher, Mike Judd. |
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*/ |
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import junit.framework.*; |
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import java.util.*; |
12 |
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import java.util.concurrent.*; |
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import static java.util.concurrent.TimeUnit.MILLISECONDS; |
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import java.io.*; |
10 |
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|
11 |
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import java.util.ArrayList; |
12 |
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import java.util.Arrays; |
13 |
> |
import java.util.Collection; |
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import java.util.Iterator; |
15 |
> |
import java.util.NoSuchElementException; |
16 |
> |
import java.util.Queue; |
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import java.util.concurrent.ArrayBlockingQueue; |
18 |
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import java.util.concurrent.BlockingQueue; |
19 |
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import java.util.concurrent.CountDownLatch; |
20 |
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import java.util.concurrent.Executors; |
21 |
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import java.util.concurrent.ExecutorService; |
22 |
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|
23 |
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import junit.framework.Test; |
24 |
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|
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public class ArrayBlockingQueueTest extends JSR166TestCase { |
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|
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public static class Fair extends BlockingQueueTest { |
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protected BlockingQueue emptyCollection() { |
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return new ArrayBlockingQueue(20, true); |
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return new ArrayBlockingQueue(SIZE, true); |
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} |
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} |
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|
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public static class NonFair extends BlockingQueueTest { |
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protected BlockingQueue emptyCollection() { |
35 |
< |
return new ArrayBlockingQueue(20, false); |
35 |
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return new ArrayBlockingQueue(SIZE, false); |
36 |
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} |
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} |
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|
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public static void main(String[] args) { |
40 |
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junit.textui.TestRunner.run(suite()); |
40 |
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main(suite(), args); |
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} |
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|
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public static Test suite() { |
47 |
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} |
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|
49 |
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/** |
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* Create a queue of given size containing consecutive |
50 |
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* Returns a new queue of given size containing consecutive |
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* Integers 0 ... n. |
52 |
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*/ |
53 |
< |
private ArrayBlockingQueue populatedQueue(int n) { |
54 |
< |
ArrayBlockingQueue q = new ArrayBlockingQueue(n); |
53 |
> |
private ArrayBlockingQueue<Integer> populatedQueue(int n) { |
54 |
> |
ArrayBlockingQueue<Integer> q = new ArrayBlockingQueue<Integer>(n); |
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assertTrue(q.isEmpty()); |
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for (int i = 0; i < n; i++) |
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assertTrue(q.offer(new Integer(i))); |
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*/ |
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public void testConstructor2() { |
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try { |
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ArrayBlockingQueue q = new ArrayBlockingQueue(0); |
76 |
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new ArrayBlockingQueue(0); |
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shouldThrow(); |
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} catch (IllegalArgumentException success) {} |
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} |
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*/ |
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public void testConstructor3() { |
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try { |
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ArrayBlockingQueue q = new ArrayBlockingQueue(1, true, null); |
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new ArrayBlockingQueue(1, true, null); |
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shouldThrow(); |
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} catch (NullPointerException success) {} |
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} |
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* Initializing from Collection of null elements throws NPE |
93 |
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*/ |
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public void testConstructor4() { |
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Collection<Integer> elements = Arrays.asList(new Integer[SIZE]); |
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try { |
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Integer[] ints = new Integer[SIZE]; |
88 |
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ArrayBlockingQueue q = new ArrayBlockingQueue(SIZE, false, Arrays.asList(ints)); |
97 |
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new ArrayBlockingQueue(SIZE, false, 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 |
104 |
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*/ |
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public void testConstructor5() { |
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Integer[] ints = new Integer[SIZE]; |
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for (int i = 0; i < SIZE - 1; ++i) |
108 |
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ints[i] = i; |
109 |
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Collection<Integer> elements = Arrays.asList(ints); |
110 |
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try { |
111 |
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Integer[] ints = new Integer[SIZE]; |
99 |
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for (int i = 0; i < SIZE-1; ++i) |
100 |
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ints[i] = new Integer(i); |
101 |
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ArrayBlockingQueue q = new ArrayBlockingQueue(SIZE, false, Arrays.asList(ints)); |
111 |
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new ArrayBlockingQueue(SIZE, false, elements); |
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shouldThrow(); |
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} catch (NullPointerException success) {} |
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} |
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* Initializing from too large collection throws IAE |
118 |
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*/ |
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public void testConstructor6() { |
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Integer[] ints = new Integer[SIZE]; |
121 |
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for (int i = 0; i < SIZE; ++i) |
122 |
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ints[i] = i; |
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Collection<Integer> elements = Arrays.asList(ints); |
124 |
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try { |
125 |
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Integer[] ints = new Integer[SIZE]; |
112 |
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for (int i = 0; i < SIZE; ++i) |
113 |
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ints[i] = new Integer(i); |
114 |
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ArrayBlockingQueue q = new ArrayBlockingQueue(1, false, Arrays.asList(ints)); |
125 |
> |
new ArrayBlockingQueue(SIZE - 1, false, elements); |
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shouldThrow(); |
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} catch (IllegalArgumentException success) {} |
128 |
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} |
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public void testConstructor7() { |
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Integer[] ints = new Integer[SIZE]; |
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for (int i = 0; i < SIZE; ++i) |
136 |
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ints[i] = new Integer(i); |
137 |
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ArrayBlockingQueue q = new ArrayBlockingQueue(SIZE, true, Arrays.asList(ints)); |
136 |
> |
ints[i] = i; |
137 |
> |
Collection<Integer> elements = Arrays.asList(ints); |
138 |
> |
ArrayBlockingQueue q = new ArrayBlockingQueue(SIZE, true, elements); |
139 |
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for (int i = 0; i < SIZE; ++i) |
140 |
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assertEquals(ints[i], q.poll()); |
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} |
159 |
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* remainingCapacity decreases on add, increases on remove |
160 |
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*/ |
161 |
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public void testRemainingCapacity() { |
162 |
< |
ArrayBlockingQueue q = populatedQueue(SIZE); |
162 |
> |
BlockingQueue q = populatedQueue(SIZE); |
163 |
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for (int i = 0; i < SIZE; ++i) { |
164 |
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assertEquals(i, q.remainingCapacity()); |
165 |
< |
assertEquals(SIZE-i, q.size()); |
166 |
< |
q.remove(); |
165 |
> |
assertEquals(SIZE, q.size() + q.remainingCapacity()); |
166 |
> |
assertEquals(i, q.remove()); |
167 |
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} |
168 |
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for (int i = 0; i < SIZE; ++i) { |
169 |
< |
assertEquals(SIZE-i, q.remainingCapacity()); |
170 |
< |
assertEquals(i, q.size()); |
171 |
< |
q.add(new Integer(i)); |
169 |
> |
assertEquals(SIZE - i, q.remainingCapacity()); |
170 |
> |
assertEquals(SIZE, q.size() + q.remainingCapacity()); |
171 |
> |
assertTrue(q.add(i)); |
172 |
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} |
173 |
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} |
174 |
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|
175 |
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/** |
164 |
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* offer(null) throws NPE |
165 |
– |
*/ |
166 |
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public void testOfferNull() { |
167 |
– |
try { |
168 |
– |
ArrayBlockingQueue q = new ArrayBlockingQueue(1); |
169 |
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q.offer(null); |
170 |
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shouldThrow(); |
171 |
– |
} catch (NullPointerException success) {} |
172 |
– |
} |
173 |
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|
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 |
– |
/** |
176 |
|
* Offer succeeds if not full; fails if full |
177 |
|
*/ |
178 |
|
public void testOffer() { |
185 |
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* add succeeds if not full; throws ISE if full |
186 |
|
*/ |
187 |
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public void testAdd() { |
188 |
+ |
ArrayBlockingQueue q = new ArrayBlockingQueue(SIZE); |
189 |
+ |
for (int i = 0; i < SIZE; ++i) { |
190 |
+ |
assertTrue(q.add(new Integer(i))); |
191 |
+ |
} |
192 |
+ |
assertEquals(0, q.remainingCapacity()); |
193 |
|
try { |
199 |
– |
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()); |
194 |
|
q.add(new Integer(SIZE)); |
195 |
|
shouldThrow(); |
196 |
|
} catch (IllegalStateException success) {} |
197 |
|
} |
198 |
|
|
199 |
|
/** |
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 |
– |
/** |
200 |
|
* addAll(this) throws IAE |
201 |
|
*/ |
202 |
|
public void testAddAllSelf() { |
203 |
+ |
ArrayBlockingQueue q = populatedQueue(SIZE); |
204 |
|
try { |
225 |
– |
ArrayBlockingQueue q = populatedQueue(SIZE); |
205 |
|
q.addAll(q); |
206 |
|
shouldThrow(); |
207 |
|
} catch (IllegalArgumentException success) {} |
208 |
|
} |
209 |
|
|
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 |
– |
|
210 |
|
/** |
211 |
|
* addAll of a collection with any null elements throws NPE after |
212 |
|
* possibly adding some elements |
213 |
|
*/ |
214 |
|
public void testAddAll3() { |
215 |
+ |
ArrayBlockingQueue q = new ArrayBlockingQueue(SIZE); |
216 |
+ |
Integer[] ints = new Integer[SIZE]; |
217 |
+ |
for (int i = 0; i < SIZE - 1; ++i) |
218 |
+ |
ints[i] = new Integer(i); |
219 |
|
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); |
220 |
|
q.addAll(Arrays.asList(ints)); |
221 |
|
shouldThrow(); |
222 |
|
} catch (NullPointerException success) {} |
226 |
|
* addAll throws ISE if not enough room |
227 |
|
*/ |
228 |
|
public void testAddAll4() { |
229 |
+ |
ArrayBlockingQueue q = new ArrayBlockingQueue(1); |
230 |
+ |
Integer[] ints = new Integer[SIZE]; |
231 |
+ |
for (int i = 0; i < SIZE; ++i) |
232 |
+ |
ints[i] = new Integer(i); |
233 |
|
try { |
264 |
– |
ArrayBlockingQueue q = new ArrayBlockingQueue(1); |
265 |
– |
Integer[] ints = new Integer[SIZE]; |
266 |
– |
for (int i = 0; i < SIZE; ++i) |
267 |
– |
ints[i] = new Integer(i); |
234 |
|
q.addAll(Arrays.asList(ints)); |
235 |
|
shouldThrow(); |
236 |
|
} catch (IllegalStateException success) {} |
252 |
|
} |
253 |
|
|
254 |
|
/** |
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 |
– |
/** |
255 |
|
* all elements successfully put are contained |
256 |
|
*/ |
257 |
|
public void testPut() throws InterruptedException { |
258 |
|
ArrayBlockingQueue q = new ArrayBlockingQueue(SIZE); |
259 |
|
for (int i = 0; i < SIZE; ++i) { |
260 |
< |
Integer I = new Integer(i); |
261 |
< |
q.put(I); |
262 |
< |
assertTrue(q.contains(I)); |
260 |
> |
Integer x = new Integer(i); |
261 |
> |
q.put(x); |
262 |
> |
assertTrue(q.contains(x)); |
263 |
|
} |
264 |
|
assertEquals(0, q.remainingCapacity()); |
265 |
|
} |
269 |
|
*/ |
270 |
|
public void testBlockingPut() throws InterruptedException { |
271 |
|
final ArrayBlockingQueue q = new ArrayBlockingQueue(SIZE); |
272 |
< |
Thread t = new Thread(new CheckedRunnable() { |
272 |
> |
final CountDownLatch pleaseInterrupt = new CountDownLatch(1); |
273 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
274 |
|
public void realRun() throws InterruptedException { |
275 |
|
for (int i = 0; i < SIZE; ++i) |
276 |
|
q.put(i); |
277 |
|
assertEquals(SIZE, q.size()); |
278 |
|
assertEquals(0, q.remainingCapacity()); |
279 |
+ |
|
280 |
+ |
Thread.currentThread().interrupt(); |
281 |
+ |
try { |
282 |
+ |
q.put(99); |
283 |
+ |
shouldThrow(); |
284 |
+ |
} catch (InterruptedException success) {} |
285 |
+ |
assertFalse(Thread.interrupted()); |
286 |
+ |
|
287 |
+ |
pleaseInterrupt.countDown(); |
288 |
|
try { |
289 |
|
q.put(99); |
290 |
|
shouldThrow(); |
291 |
|
} catch (InterruptedException success) {} |
292 |
+ |
assertFalse(Thread.interrupted()); |
293 |
|
}}); |
294 |
|
|
295 |
< |
t.start(); |
296 |
< |
Thread.sleep(SHORT_DELAY_MS); |
295 |
> |
await(pleaseInterrupt); |
296 |
> |
assertThreadStaysAlive(t); |
297 |
|
t.interrupt(); |
298 |
< |
t.join(); |
298 |
> |
awaitTermination(t); |
299 |
|
assertEquals(SIZE, q.size()); |
300 |
|
assertEquals(0, q.remainingCapacity()); |
301 |
|
} |
302 |
|
|
303 |
|
/** |
304 |
< |
* put blocks waiting for take when full |
304 |
> |
* put blocks interruptibly waiting for take when full |
305 |
|
*/ |
306 |
|
public void testPutWithTake() throws InterruptedException { |
307 |
|
final int capacity = 2; |
308 |
|
final ArrayBlockingQueue q = new ArrayBlockingQueue(capacity); |
309 |
< |
Thread t = new Thread(new CheckedRunnable() { |
309 |
> |
final CountDownLatch pleaseTake = new CountDownLatch(1); |
310 |
> |
final CountDownLatch pleaseInterrupt = new CountDownLatch(1); |
311 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
312 |
|
public void realRun() throws InterruptedException { |
313 |
< |
for (int i = 0; i < capacity + 1; i++) |
313 |
> |
for (int i = 0; i < capacity; i++) |
314 |
|
q.put(i); |
315 |
+ |
pleaseTake.countDown(); |
316 |
+ |
q.put(86); |
317 |
+ |
|
318 |
+ |
pleaseInterrupt.countDown(); |
319 |
|
try { |
320 |
|
q.put(99); |
321 |
|
shouldThrow(); |
322 |
|
} catch (InterruptedException success) {} |
323 |
+ |
assertFalse(Thread.interrupted()); |
324 |
|
}}); |
325 |
|
|
326 |
< |
t.start(); |
327 |
< |
Thread.sleep(SHORT_DELAY_MS); |
355 |
< |
assertEquals(q.remainingCapacity(), 0); |
326 |
> |
await(pleaseTake); |
327 |
> |
assertEquals(0, q.remainingCapacity()); |
328 |
|
assertEquals(0, q.take()); |
329 |
< |
Thread.sleep(SHORT_DELAY_MS); |
329 |
> |
|
330 |
> |
await(pleaseInterrupt); |
331 |
> |
assertThreadStaysAlive(t); |
332 |
|
t.interrupt(); |
333 |
< |
t.join(); |
334 |
< |
assertEquals(q.remainingCapacity(), 0); |
333 |
> |
awaitTermination(t); |
334 |
> |
assertEquals(0, q.remainingCapacity()); |
335 |
|
} |
336 |
|
|
337 |
|
/** |
339 |
|
*/ |
340 |
|
public void testTimedOffer() throws InterruptedException { |
341 |
|
final ArrayBlockingQueue q = new ArrayBlockingQueue(2); |
342 |
< |
Thread t = new Thread(new CheckedRunnable() { |
342 |
> |
final CountDownLatch pleaseInterrupt = new CountDownLatch(1); |
343 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
344 |
|
public void realRun() throws InterruptedException { |
345 |
|
q.put(new Object()); |
346 |
|
q.put(new Object()); |
347 |
< |
assertFalse(q.offer(new Object(), SHORT_DELAY_MS/2, MILLISECONDS)); |
347 |
> |
long startTime = System.nanoTime(); |
348 |
> |
assertFalse(q.offer(new Object(), timeoutMillis(), MILLISECONDS)); |
349 |
> |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
350 |
> |
pleaseInterrupt.countDown(); |
351 |
|
try { |
352 |
< |
q.offer(new Object(), LONG_DELAY_MS, MILLISECONDS); |
352 |
> |
q.offer(new Object(), 2 * LONG_DELAY_MS, MILLISECONDS); |
353 |
|
shouldThrow(); |
354 |
|
} catch (InterruptedException success) {} |
355 |
|
}}); |
356 |
|
|
357 |
< |
t.start(); |
358 |
< |
Thread.sleep(SHORT_DELAY_MS); |
357 |
> |
await(pleaseInterrupt); |
358 |
> |
assertThreadStaysAlive(t); |
359 |
|
t.interrupt(); |
360 |
< |
t.join(); |
360 |
> |
awaitTermination(t); |
361 |
|
} |
362 |
|
|
363 |
|
/** |
371 |
|
} |
372 |
|
|
373 |
|
/** |
396 |
– |
* take blocks interruptibly when empty |
397 |
– |
*/ |
398 |
– |
public void testTakeFromEmpty() throws InterruptedException { |
399 |
– |
final ArrayBlockingQueue q = new ArrayBlockingQueue(2); |
400 |
– |
Thread t = new ThreadShouldThrow(InterruptedException.class) { |
401 |
– |
public void realRun() throws InterruptedException { |
402 |
– |
q.take(); |
403 |
– |
}}; |
404 |
– |
|
405 |
– |
t.start(); |
406 |
– |
Thread.sleep(SHORT_DELAY_MS); |
407 |
– |
t.interrupt(); |
408 |
– |
t.join(); |
409 |
– |
} |
410 |
– |
|
411 |
– |
/** |
374 |
|
* Take removes existing elements until empty, then blocks interruptibly |
375 |
|
*/ |
376 |
|
public void testBlockingTake() throws InterruptedException { |
377 |
|
final ArrayBlockingQueue q = populatedQueue(SIZE); |
378 |
< |
Thread t = new Thread(new CheckedRunnable() { |
378 |
> |
final CountDownLatch pleaseInterrupt = new CountDownLatch(1); |
379 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
380 |
|
public void realRun() throws InterruptedException { |
381 |
|
for (int i = 0; i < SIZE; ++i) { |
382 |
|
assertEquals(i, q.take()); |
383 |
|
} |
384 |
+ |
|
385 |
+ |
Thread.currentThread().interrupt(); |
386 |
+ |
try { |
387 |
+ |
q.take(); |
388 |
+ |
shouldThrow(); |
389 |
+ |
} catch (InterruptedException success) {} |
390 |
+ |
assertFalse(Thread.interrupted()); |
391 |
+ |
|
392 |
+ |
pleaseInterrupt.countDown(); |
393 |
|
try { |
394 |
|
q.take(); |
395 |
|
shouldThrow(); |
396 |
|
} catch (InterruptedException success) {} |
397 |
+ |
assertFalse(Thread.interrupted()); |
398 |
|
}}); |
399 |
|
|
400 |
< |
t.start(); |
401 |
< |
Thread.sleep(SHORT_DELAY_MS); |
400 |
> |
await(pleaseInterrupt); |
401 |
> |
assertThreadStaysAlive(t); |
402 |
|
t.interrupt(); |
403 |
< |
t.join(); |
403 |
> |
awaitTermination(t); |
404 |
|
} |
405 |
|
|
433 |
– |
|
406 |
|
/** |
407 |
|
* poll succeeds unless empty |
408 |
|
*/ |
415 |
|
} |
416 |
|
|
417 |
|
/** |
418 |
< |
* timed pool with zero timeout succeeds when non-empty, else times out |
418 |
> |
* timed poll with zero timeout succeeds when non-empty, else times out |
419 |
|
*/ |
420 |
|
public void testTimedPoll0() throws InterruptedException { |
421 |
|
ArrayBlockingQueue q = populatedQueue(SIZE); |
423 |
|
assertEquals(i, q.poll(0, MILLISECONDS)); |
424 |
|
} |
425 |
|
assertNull(q.poll(0, MILLISECONDS)); |
426 |
+ |
checkEmpty(q); |
427 |
|
} |
428 |
|
|
429 |
|
/** |
430 |
< |
* timed pool with nonzero timeout succeeds when non-empty, else times out |
430 |
> |
* timed poll with nonzero timeout succeeds when non-empty, else times out |
431 |
|
*/ |
432 |
|
public void testTimedPoll() throws InterruptedException { |
433 |
|
ArrayBlockingQueue q = populatedQueue(SIZE); |
434 |
|
for (int i = 0; i < SIZE; ++i) { |
435 |
< |
assertEquals(i, q.poll(SHORT_DELAY_MS, MILLISECONDS)); |
436 |
< |
} |
437 |
< |
assertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS)); |
435 |
> |
long startTime = System.nanoTime(); |
436 |
> |
assertEquals(i, q.poll(LONG_DELAY_MS, MILLISECONDS)); |
437 |
> |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
438 |
> |
} |
439 |
> |
long startTime = System.nanoTime(); |
440 |
> |
assertNull(q.poll(timeoutMillis(), MILLISECONDS)); |
441 |
> |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
442 |
> |
checkEmpty(q); |
443 |
|
} |
444 |
|
|
445 |
|
/** |
447 |
|
* returning timeout status |
448 |
|
*/ |
449 |
|
public void testInterruptedTimedPoll() throws InterruptedException { |
450 |
< |
Thread t = new Thread(new CheckedRunnable() { |
450 |
> |
final BlockingQueue<Integer> q = populatedQueue(SIZE); |
451 |
> |
final CountDownLatch aboutToWait = new CountDownLatch(1); |
452 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
453 |
|
public void realRun() throws InterruptedException { |
474 |
– |
ArrayBlockingQueue q = populatedQueue(SIZE); |
454 |
|
for (int i = 0; i < SIZE; ++i) { |
455 |
< |
assertEquals(i, q.poll(SHORT_DELAY_MS, MILLISECONDS));; |
455 |
> |
long t0 = System.nanoTime(); |
456 |
> |
assertEquals(i, (int) q.poll(LONG_DELAY_MS, MILLISECONDS)); |
457 |
> |
assertTrue(millisElapsedSince(t0) < SMALL_DELAY_MS); |
458 |
|
} |
459 |
+ |
long t0 = System.nanoTime(); |
460 |
+ |
aboutToWait.countDown(); |
461 |
|
try { |
462 |
< |
q.poll(SMALL_DELAY_MS, MILLISECONDS); |
462 |
> |
q.poll(MEDIUM_DELAY_MS, MILLISECONDS); |
463 |
|
shouldThrow(); |
464 |
< |
} catch (InterruptedException success) {} |
464 |
> |
} catch (InterruptedException success) { |
465 |
> |
assertTrue(millisElapsedSince(t0) < MEDIUM_DELAY_MS); |
466 |
> |
} |
467 |
|
}}); |
468 |
|
|
469 |
< |
t.start(); |
470 |
< |
Thread.sleep(SHORT_DELAY_MS); |
469 |
> |
aboutToWait.await(); |
470 |
> |
waitForThreadToEnterWaitState(t, SMALL_DELAY_MS); |
471 |
|
t.interrupt(); |
472 |
< |
t.join(); |
472 |
> |
awaitTermination(t, MEDIUM_DELAY_MS); |
473 |
> |
checkEmpty(q); |
474 |
|
} |
475 |
|
|
476 |
|
/** |
517 |
|
} |
518 |
|
|
519 |
|
/** |
534 |
– |
* remove(x) removes x and returns true if present |
535 |
– |
*/ |
536 |
– |
public void testRemoveElement() { |
537 |
– |
ArrayBlockingQueue q = populatedQueue(SIZE); |
538 |
– |
for (int i = 1; i < SIZE; i+=2) { |
539 |
– |
assertTrue(q.remove(new Integer(i))); |
540 |
– |
} |
541 |
– |
for (int i = 0; i < SIZE; i+=2) { |
542 |
– |
assertTrue(q.remove(new Integer(i))); |
543 |
– |
assertFalse(q.remove(new Integer(i+1))); |
544 |
– |
} |
545 |
– |
assertTrue(q.isEmpty()); |
546 |
– |
} |
547 |
– |
|
548 |
– |
/** |
520 |
|
* contains(x) reports true when elements added but not yet removed |
521 |
|
*/ |
522 |
|
public void testContains() { |
572 |
|
assertTrue(changed); |
573 |
|
|
574 |
|
assertTrue(q.containsAll(p)); |
575 |
< |
assertEquals(SIZE-i, q.size()); |
575 |
> |
assertEquals(SIZE - i, q.size()); |
576 |
|
p.remove(); |
577 |
|
} |
578 |
|
} |
585 |
|
ArrayBlockingQueue q = populatedQueue(SIZE); |
586 |
|
ArrayBlockingQueue p = populatedQueue(i); |
587 |
|
assertTrue(q.removeAll(p)); |
588 |
< |
assertEquals(SIZE-i, q.size()); |
588 |
> |
assertEquals(SIZE - i, q.size()); |
589 |
|
for (int j = 0; j < i; ++j) { |
590 |
< |
Integer I = (Integer)(p.remove()); |
591 |
< |
assertFalse(q.contains(I)); |
590 |
> |
Integer x = (Integer)(p.remove()); |
591 |
> |
assertFalse(q.contains(x)); |
592 |
|
} |
593 |
|
} |
594 |
|
} |
595 |
|
|
596 |
< |
/** |
597 |
< |
* toArray contains all elements |
627 |
< |
*/ |
628 |
< |
public void testToArray() throws InterruptedException { |
629 |
< |
ArrayBlockingQueue q = populatedQueue(SIZE); |
596 |
> |
void checkToArray(ArrayBlockingQueue q) { |
597 |
> |
int size = q.size(); |
598 |
|
Object[] o = q.toArray(); |
599 |
< |
for (int i = 0; i < o.length; i++) |
600 |
< |
assertEquals(o[i], q.take()); |
599 |
> |
assertEquals(size, o.length); |
600 |
> |
Iterator it = q.iterator(); |
601 |
> |
for (int i = 0; i < size; i++) { |
602 |
> |
Integer x = (Integer) it.next(); |
603 |
> |
assertEquals((Integer)o[0] + i, (int) x); |
604 |
> |
assertSame(o[i], x); |
605 |
> |
} |
606 |
|
} |
607 |
|
|
608 |
|
/** |
609 |
< |
* toArray(a) contains all elements |
609 |
> |
* toArray() contains all elements in FIFO order |
610 |
|
*/ |
611 |
< |
public void testToArray2() throws InterruptedException { |
612 |
< |
ArrayBlockingQueue q = populatedQueue(SIZE); |
613 |
< |
Integer[] ints = new Integer[SIZE]; |
614 |
< |
ints = (Integer[])q.toArray(ints); |
615 |
< |
for (int i = 0; i < ints.length; i++) |
616 |
< |
assertEquals(ints[i], q.take()); |
611 |
> |
public void testToArray() { |
612 |
> |
ArrayBlockingQueue q = new ArrayBlockingQueue(SIZE); |
613 |
> |
for (int i = 0; i < SIZE; i++) { |
614 |
> |
checkToArray(q); |
615 |
> |
q.add(i); |
616 |
> |
} |
617 |
> |
// Provoke wraparound |
618 |
> |
for (int i = 0; i < SIZE; i++) { |
619 |
> |
checkToArray(q); |
620 |
> |
assertEquals(i, q.poll()); |
621 |
> |
checkToArray(q); |
622 |
> |
q.add(SIZE + i); |
623 |
> |
} |
624 |
> |
for (int i = 0; i < SIZE; i++) { |
625 |
> |
checkToArray(q); |
626 |
> |
assertEquals(SIZE + i, q.poll()); |
627 |
> |
} |
628 |
> |
} |
629 |
> |
|
630 |
> |
void checkToArray2(ArrayBlockingQueue q) { |
631 |
> |
int size = q.size(); |
632 |
> |
Integer[] a1 = (size == 0) ? null : new Integer[size - 1]; |
633 |
> |
Integer[] a2 = new Integer[size]; |
634 |
> |
Integer[] a3 = new Integer[size + 2]; |
635 |
> |
if (size > 0) Arrays.fill(a1, 42); |
636 |
> |
Arrays.fill(a2, 42); |
637 |
> |
Arrays.fill(a3, 42); |
638 |
> |
Integer[] b1 = (size == 0) ? null : (Integer[]) q.toArray(a1); |
639 |
> |
Integer[] b2 = (Integer[]) q.toArray(a2); |
640 |
> |
Integer[] b3 = (Integer[]) q.toArray(a3); |
641 |
> |
assertSame(a2, b2); |
642 |
> |
assertSame(a3, b3); |
643 |
> |
Iterator it = q.iterator(); |
644 |
> |
for (int i = 0; i < size; i++) { |
645 |
> |
Integer x = (Integer) it.next(); |
646 |
> |
assertSame(b1[i], x); |
647 |
> |
assertEquals(b1[0] + i, (int) x); |
648 |
> |
assertSame(b2[i], x); |
649 |
> |
assertSame(b3[i], x); |
650 |
> |
} |
651 |
> |
assertNull(a3[size]); |
652 |
> |
assertEquals(42, (int) a3[size + 1]); |
653 |
> |
if (size > 0) { |
654 |
> |
assertNotSame(a1, b1); |
655 |
> |
assertEquals(size, b1.length); |
656 |
> |
for (int i = 0; i < a1.length; i++) { |
657 |
> |
assertEquals(42, (int) a1[i]); |
658 |
> |
} |
659 |
> |
} |
660 |
|
} |
661 |
|
|
662 |
|
/** |
663 |
< |
* toArray(null) throws NPE |
663 |
> |
* toArray(a) contains all elements in FIFO order |
664 |
|
*/ |
665 |
< |
public void testToArray_BadArg() { |
666 |
< |
ArrayBlockingQueue q = populatedQueue(SIZE); |
667 |
< |
try { |
668 |
< |
Object o[] = q.toArray(null); |
669 |
< |
shouldThrow(); |
670 |
< |
} catch (NullPointerException success) {} |
665 |
> |
public void testToArray2() { |
666 |
> |
ArrayBlockingQueue q = new ArrayBlockingQueue(SIZE); |
667 |
> |
for (int i = 0; i < SIZE; i++) { |
668 |
> |
checkToArray2(q); |
669 |
> |
q.add(i); |
670 |
> |
} |
671 |
> |
// Provoke wraparound |
672 |
> |
for (int i = 0; i < SIZE; i++) { |
673 |
> |
checkToArray2(q); |
674 |
> |
assertEquals(i, q.poll()); |
675 |
> |
checkToArray2(q); |
676 |
> |
q.add(SIZE + i); |
677 |
> |
} |
678 |
> |
for (int i = 0; i < SIZE; i++) { |
679 |
> |
checkToArray2(q); |
680 |
> |
assertEquals(SIZE + i, q.poll()); |
681 |
> |
} |
682 |
|
} |
683 |
|
|
684 |
|
/** |
685 |
< |
* toArray with incompatible array type throws CCE |
685 |
> |
* toArray(incompatible array type) throws ArrayStoreException |
686 |
|
*/ |
687 |
|
public void testToArray1_BadArg() { |
688 |
|
ArrayBlockingQueue q = populatedQueue(SIZE); |
689 |
|
try { |
690 |
< |
Object o[] = q.toArray(new String[10]); |
690 |
> |
q.toArray(new String[10]); |
691 |
|
shouldThrow(); |
692 |
|
} catch (ArrayStoreException success) {} |
693 |
|
} |
694 |
|
|
668 |
– |
|
695 |
|
/** |
696 |
|
* iterator iterates through all elements |
697 |
|
*/ |
698 |
|
public void testIterator() throws InterruptedException { |
699 |
|
ArrayBlockingQueue q = populatedQueue(SIZE); |
700 |
|
Iterator it = q.iterator(); |
701 |
< |
while (it.hasNext()) { |
701 |
> |
int i; |
702 |
> |
for (i = 0; it.hasNext(); i++) |
703 |
> |
assertTrue(q.contains(it.next())); |
704 |
> |
assertEquals(i, SIZE); |
705 |
> |
assertIteratorExhausted(it); |
706 |
> |
|
707 |
> |
it = q.iterator(); |
708 |
> |
for (i = 0; it.hasNext(); i++) |
709 |
|
assertEquals(it.next(), q.take()); |
710 |
< |
} |
710 |
> |
assertEquals(i, SIZE); |
711 |
> |
assertIteratorExhausted(it); |
712 |
> |
} |
713 |
> |
|
714 |
> |
/** |
715 |
> |
* iterator of empty collection has no elements |
716 |
> |
*/ |
717 |
> |
public void testEmptyIterator() { |
718 |
> |
assertIteratorExhausted(new ArrayBlockingQueue(SIZE).iterator()); |
719 |
|
} |
720 |
|
|
721 |
|
/** |
770 |
|
assertEquals(0, q.size()); |
771 |
|
} |
772 |
|
|
732 |
– |
|
773 |
|
/** |
774 |
|
* toString contains toStrings of elements |
775 |
|
*/ |
777 |
|
ArrayBlockingQueue q = populatedQueue(SIZE); |
778 |
|
String s = q.toString(); |
779 |
|
for (int i = 0; i < SIZE; ++i) { |
780 |
< |
assertTrue(s.indexOf(String.valueOf(i)) >= 0); |
780 |
> |
assertTrue(s.contains(String.valueOf(i))); |
781 |
|
} |
782 |
|
} |
783 |
|
|
744 |
– |
|
784 |
|
/** |
785 |
|
* offer transfers elements across Executor tasks |
786 |
|
*/ |
788 |
|
final ArrayBlockingQueue q = new ArrayBlockingQueue(2); |
789 |
|
q.add(one); |
790 |
|
q.add(two); |
791 |
< |
ExecutorService executor = Executors.newFixedThreadPool(2); |
792 |
< |
executor.execute(new CheckedRunnable() { |
793 |
< |
public void realRun() throws InterruptedException { |
794 |
< |
assertFalse(q.offer(three)); |
795 |
< |
assertTrue(q.offer(three, MEDIUM_DELAY_MS, MILLISECONDS)); |
796 |
< |
assertEquals(0, q.remainingCapacity()); |
797 |
< |
}}); |
798 |
< |
|
799 |
< |
executor.execute(new CheckedRunnable() { |
800 |
< |
public void realRun() throws InterruptedException { |
801 |
< |
Thread.sleep(SMALL_DELAY_MS); |
802 |
< |
assertSame(one, q.take()); |
803 |
< |
}}); |
804 |
< |
|
805 |
< |
joinPool(executor); |
791 |
> |
final CheckedBarrier threadsStarted = new CheckedBarrier(2); |
792 |
> |
final ExecutorService executor = Executors.newFixedThreadPool(2); |
793 |
> |
try (PoolCleaner cleaner = cleaner(executor)) { |
794 |
> |
executor.execute(new CheckedRunnable() { |
795 |
> |
public void realRun() throws InterruptedException { |
796 |
> |
assertFalse(q.offer(three)); |
797 |
> |
threadsStarted.await(); |
798 |
> |
assertTrue(q.offer(three, LONG_DELAY_MS, MILLISECONDS)); |
799 |
> |
assertEquals(0, q.remainingCapacity()); |
800 |
> |
}}); |
801 |
> |
|
802 |
> |
executor.execute(new CheckedRunnable() { |
803 |
> |
public void realRun() throws InterruptedException { |
804 |
> |
threadsStarted.await(); |
805 |
> |
assertEquals(0, q.remainingCapacity()); |
806 |
> |
assertSame(one, q.take()); |
807 |
> |
}}); |
808 |
> |
} |
809 |
|
} |
810 |
|
|
811 |
|
/** |
812 |
< |
* poll retrieves elements across Executor threads |
812 |
> |
* timed poll retrieves elements across Executor threads |
813 |
|
*/ |
814 |
|
public void testPollInExecutor() { |
815 |
|
final ArrayBlockingQueue q = new ArrayBlockingQueue(2); |
816 |
< |
ExecutorService executor = Executors.newFixedThreadPool(2); |
817 |
< |
executor.execute(new CheckedRunnable() { |
818 |
< |
public void realRun() throws InterruptedException { |
819 |
< |
assertNull(q.poll()); |
820 |
< |
assertSame(one, q.poll(MEDIUM_DELAY_MS, MILLISECONDS)); |
821 |
< |
assertTrue(q.isEmpty()); |
822 |
< |
}}); |
823 |
< |
|
824 |
< |
executor.execute(new CheckedRunnable() { |
825 |
< |
public void realRun() throws InterruptedException { |
826 |
< |
Thread.sleep(SMALL_DELAY_MS); |
827 |
< |
q.put(one); |
828 |
< |
}}); |
829 |
< |
|
830 |
< |
joinPool(executor); |
816 |
> |
final CheckedBarrier threadsStarted = new CheckedBarrier(2); |
817 |
> |
final ExecutorService executor = Executors.newFixedThreadPool(2); |
818 |
> |
try (PoolCleaner cleaner = cleaner(executor)) { |
819 |
> |
executor.execute(new CheckedRunnable() { |
820 |
> |
public void realRun() throws InterruptedException { |
821 |
> |
assertNull(q.poll()); |
822 |
> |
threadsStarted.await(); |
823 |
> |
assertSame(one, q.poll(LONG_DELAY_MS, MILLISECONDS)); |
824 |
> |
checkEmpty(q); |
825 |
> |
}}); |
826 |
> |
|
827 |
> |
executor.execute(new CheckedRunnable() { |
828 |
> |
public void realRun() throws InterruptedException { |
829 |
> |
threadsStarted.await(); |
830 |
> |
q.put(one); |
831 |
> |
}}); |
832 |
> |
} |
833 |
|
} |
834 |
|
|
835 |
|
/** |
836 |
|
* A deserialized serialized queue has same elements in same order |
837 |
|
*/ |
838 |
|
public void testSerialization() throws Exception { |
839 |
< |
ArrayBlockingQueue q = populatedQueue(SIZE); |
840 |
< |
|
797 |
< |
ByteArrayOutputStream bout = new ByteArrayOutputStream(10000); |
798 |
< |
ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout)); |
799 |
< |
out.writeObject(q); |
800 |
< |
out.close(); |
801 |
< |
|
802 |
< |
ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray()); |
803 |
< |
ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin)); |
804 |
< |
ArrayBlockingQueue r = (ArrayBlockingQueue)in.readObject(); |
805 |
< |
assertEquals(q.size(), r.size()); |
806 |
< |
while (!q.isEmpty()) |
807 |
< |
assertEquals(q.remove(), r.remove()); |
808 |
< |
} |
839 |
> |
Queue x = populatedQueue(SIZE); |
840 |
> |
Queue y = serialClone(x); |
841 |
|
|
842 |
< |
/** |
843 |
< |
* drainTo(null) throws NPE |
844 |
< |
*/ |
845 |
< |
public void testDrainToNull() { |
846 |
< |
ArrayBlockingQueue q = populatedQueue(SIZE); |
847 |
< |
try { |
848 |
< |
q.drainTo(null); |
849 |
< |
shouldThrow(); |
850 |
< |
} catch (NullPointerException success) {} |
819 |
< |
} |
820 |
< |
|
821 |
< |
/** |
822 |
< |
* drainTo(this) throws IAE |
823 |
< |
*/ |
824 |
< |
public void testDrainToSelf() { |
825 |
< |
ArrayBlockingQueue q = populatedQueue(SIZE); |
826 |
< |
try { |
827 |
< |
q.drainTo(q); |
828 |
< |
shouldThrow(); |
829 |
< |
} catch (IllegalArgumentException success) {} |
842 |
> |
assertNotSame(x, y); |
843 |
> |
assertEquals(x.size(), y.size()); |
844 |
> |
assertEquals(x.toString(), y.toString()); |
845 |
> |
assertTrue(Arrays.equals(x.toArray(), y.toArray())); |
846 |
> |
while (!x.isEmpty()) { |
847 |
> |
assertFalse(y.isEmpty()); |
848 |
> |
assertEquals(x.remove(), y.remove()); |
849 |
> |
} |
850 |
> |
assertTrue(y.isEmpty()); |
851 |
|
} |
852 |
|
|
853 |
|
/** |
857 |
|
ArrayBlockingQueue q = populatedQueue(SIZE); |
858 |
|
ArrayList l = new ArrayList(); |
859 |
|
q.drainTo(l); |
860 |
< |
assertEquals(q.size(), 0); |
861 |
< |
assertEquals(l.size(), SIZE); |
860 |
> |
assertEquals(0, q.size()); |
861 |
> |
assertEquals(SIZE, l.size()); |
862 |
|
for (int i = 0; i < SIZE; ++i) |
863 |
|
assertEquals(l.get(i), new Integer(i)); |
864 |
|
q.add(zero); |
868 |
|
assertTrue(q.contains(one)); |
869 |
|
l.clear(); |
870 |
|
q.drainTo(l); |
871 |
< |
assertEquals(q.size(), 0); |
872 |
< |
assertEquals(l.size(), 2); |
871 |
> |
assertEquals(0, q.size()); |
872 |
> |
assertEquals(2, l.size()); |
873 |
|
for (int i = 0; i < 2; ++i) |
874 |
|
assertEquals(l.get(i), new Integer(i)); |
875 |
|
} |
881 |
|
final ArrayBlockingQueue q = populatedQueue(SIZE); |
882 |
|
Thread t = new Thread(new CheckedRunnable() { |
883 |
|
public void realRun() throws InterruptedException { |
884 |
< |
q.put(new Integer(SIZE+1)); |
884 |
> |
q.put(new Integer(SIZE + 1)); |
885 |
|
}}); |
886 |
|
|
887 |
|
t.start(); |
895 |
|
} |
896 |
|
|
897 |
|
/** |
877 |
– |
* drainTo(null, n) throws NPE |
878 |
– |
*/ |
879 |
– |
public void testDrainToNullN() { |
880 |
– |
ArrayBlockingQueue q = populatedQueue(SIZE); |
881 |
– |
try { |
882 |
– |
q.drainTo(null, 0); |
883 |
– |
shouldThrow(); |
884 |
– |
} catch (NullPointerException success) {} |
885 |
– |
} |
886 |
– |
|
887 |
– |
/** |
888 |
– |
* drainTo(this, n) throws IAE |
889 |
– |
*/ |
890 |
– |
public void testDrainToSelfN() { |
891 |
– |
ArrayBlockingQueue q = populatedQueue(SIZE); |
892 |
– |
try { |
893 |
– |
q.drainTo(q, 0); |
894 |
– |
shouldThrow(); |
895 |
– |
} catch (IllegalArgumentException success) {} |
896 |
– |
} |
897 |
– |
|
898 |
– |
/** |
898 |
|
* drainTo(c, n) empties first min(n, size) elements of queue into c |
899 |
|
*/ |
900 |
|
public void testDrainToN() { |
901 |
< |
ArrayBlockingQueue q = new ArrayBlockingQueue(SIZE*2); |
901 |
> |
ArrayBlockingQueue q = new ArrayBlockingQueue(SIZE * 2); |
902 |
|
for (int i = 0; i < SIZE + 2; ++i) { |
903 |
|
for (int j = 0; j < SIZE; j++) |
904 |
|
assertTrue(q.offer(new Integer(j))); |
905 |
|
ArrayList l = new ArrayList(); |
906 |
|
q.drainTo(l, i); |
907 |
< |
int k = (i < SIZE)? i : SIZE; |
908 |
< |
assertEquals(l.size(), k); |
909 |
< |
assertEquals(q.size(), SIZE-k); |
907 |
> |
int k = (i < SIZE) ? i : SIZE; |
908 |
> |
assertEquals(k, l.size()); |
909 |
> |
assertEquals(SIZE - k, q.size()); |
910 |
|
for (int j = 0; j < k; ++j) |
911 |
|
assertEquals(l.get(j), new Integer(j)); |
912 |
< |
while (q.poll() != null) ; |
912 |
> |
do {} while (q.poll() != null); |
913 |
|
} |
914 |
|
} |
915 |
|
|
916 |
+ |
/** |
917 |
+ |
* remove(null), contains(null) always return false |
918 |
+ |
*/ |
919 |
+ |
public void testNeverContainsNull() { |
920 |
+ |
Collection<?>[] qs = { |
921 |
+ |
new ArrayBlockingQueue<Object>(10), |
922 |
+ |
populatedQueue(2), |
923 |
+ |
}; |
924 |
+ |
|
925 |
+ |
for (Collection<?> q : qs) { |
926 |
+ |
assertFalse(q.contains(null)); |
927 |
+ |
assertFalse(q.remove(null)); |
928 |
+ |
} |
929 |
+ |
} |
930 |
|
} |