1 |
dl |
1.1 |
/* |
2 |
dl |
1.7 |
* 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 |
jsr166 |
1.43 |
* http://creativecommons.org/publicdomain/zero/1.0/ |
5 |
jsr166 |
1.12 |
* Other contributors include Andrew Wright, Jeffrey Hayes, |
6 |
|
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* Pat Fisher, Mike Judd. |
7 |
dl |
1.1 |
*/ |
8 |
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|
9 |
jsr166 |
1.58 |
import static java.util.concurrent.TimeUnit.MILLISECONDS; |
10 |
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|
11 |
|
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import java.util.ArrayList; |
12 |
jsr166 |
1.48 |
import java.util.Arrays; |
13 |
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import java.util.Collection; |
14 |
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import java.util.Iterator; |
15 |
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import java.util.NoSuchElementException; |
16 |
jsr166 |
1.49 |
import java.util.Queue; |
17 |
jsr166 |
1.48 |
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 |
jsr166 |
1.74 |
import java.util.concurrent.ThreadLocalRandom; |
23 |
jsr166 |
1.58 |
|
24 |
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import junit.framework.Test; |
25 |
dl |
1.1 |
|
26 |
dl |
1.3 |
public class ArrayBlockingQueueTest extends JSR166TestCase { |
27 |
jsr166 |
1.32 |
|
28 |
dl |
1.1 |
public static void main(String[] args) { |
29 |
jsr166 |
1.65 |
main(suite(), args); |
30 |
dl |
1.1 |
} |
31 |
jsr166 |
1.32 |
|
32 |
dl |
1.1 |
public static Test suite() { |
33 |
jsr166 |
1.73 |
class Implementation implements CollectionImplementation { |
34 |
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public Class<?> klazz() { return ArrayBlockingQueue.class; } |
35 |
jsr166 |
1.75 |
public Collection emptyCollection() { |
36 |
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boolean fair = ThreadLocalRandom.current().nextBoolean(); |
37 |
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return populatedQueue(0, SIZE, 2 * SIZE, fair); |
38 |
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} |
39 |
jsr166 |
1.73 |
public Object makeElement(int i) { return i; } |
40 |
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public boolean isConcurrent() { return true; } |
41 |
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public boolean permitsNulls() { return false; } |
42 |
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} |
43 |
jsr166 |
1.76 |
|
44 |
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return newTestSuite( |
45 |
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ArrayBlockingQueueTest.class, |
46 |
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new Fair().testSuite(), |
47 |
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new NonFair().testSuite(), |
48 |
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CollectionTest.testSuite(new Implementation())); |
49 |
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} |
50 |
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51 |
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public static class Fair extends BlockingQueueTest { |
52 |
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protected BlockingQueue emptyCollection() { |
53 |
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return populatedQueue(0, SIZE, 2 * SIZE, true); |
54 |
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} |
55 |
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} |
56 |
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57 |
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public static class NonFair extends BlockingQueueTest { |
58 |
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protected BlockingQueue emptyCollection() { |
59 |
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return populatedQueue(0, SIZE, 2 * SIZE, false); |
60 |
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} |
61 |
dl |
1.1 |
} |
62 |
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63 |
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/** |
64 |
jsr166 |
1.54 |
* Returns a new queue of given size containing consecutive |
65 |
jsr166 |
1.72 |
* Integers 0 ... n - 1. |
66 |
dl |
1.1 |
*/ |
67 |
jsr166 |
1.75 |
static ArrayBlockingQueue<Integer> populatedQueue(int n) { |
68 |
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return populatedQueue(n, n, n, false); |
69 |
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} |
70 |
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71 |
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/** |
72 |
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* Returns a new queue of given size containing consecutive |
73 |
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* Integers 0 ... n - 1, with given capacity range and fairness. |
74 |
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*/ |
75 |
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static ArrayBlockingQueue<Integer> populatedQueue( |
76 |
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int size, int minCapacity, int maxCapacity, boolean fair) { |
77 |
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ThreadLocalRandom rnd = ThreadLocalRandom.current(); |
78 |
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int capacity = rnd.nextInt(minCapacity, maxCapacity + 1); |
79 |
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ArrayBlockingQueue<Integer> q = new ArrayBlockingQueue<>(capacity); |
80 |
dl |
1.1 |
assertTrue(q.isEmpty()); |
81 |
jsr166 |
1.75 |
// shuffle circular array elements so they wrap |
82 |
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{ |
83 |
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int n = rnd.nextInt(capacity); |
84 |
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for (int i = 0; i < n; i++) q.add(42); |
85 |
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for (int i = 0; i < n; i++) q.remove(); |
86 |
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} |
87 |
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for (int i = 0; i < size; i++) |
88 |
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assertTrue(q.offer((Integer) i)); |
89 |
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assertEquals(size == 0, q.isEmpty()); |
90 |
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assertEquals(capacity - size, q.remainingCapacity()); |
91 |
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assertEquals(size, q.size()); |
92 |
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if (size > 0) |
93 |
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assertEquals((Integer) 0, q.peek()); |
94 |
dl |
1.1 |
return q; |
95 |
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} |
96 |
jsr166 |
1.12 |
|
97 |
dl |
1.4 |
/** |
98 |
dl |
1.5 |
* A new queue has the indicated capacity |
99 |
dl |
1.4 |
*/ |
100 |
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public void testConstructor1() { |
101 |
dl |
1.3 |
assertEquals(SIZE, new ArrayBlockingQueue(SIZE).remainingCapacity()); |
102 |
dl |
1.1 |
} |
103 |
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|
104 |
dl |
1.4 |
/** |
105 |
jsr166 |
1.18 |
* Constructor throws IAE if capacity argument nonpositive |
106 |
dl |
1.4 |
*/ |
107 |
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public void testConstructor2() { |
108 |
dl |
1.1 |
try { |
109 |
jsr166 |
1.48 |
new ArrayBlockingQueue(0); |
110 |
dl |
1.4 |
shouldThrow(); |
111 |
jsr166 |
1.17 |
} catch (IllegalArgumentException success) {} |
112 |
dl |
1.1 |
} |
113 |
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|
114 |
dl |
1.4 |
/** |
115 |
dl |
1.5 |
* Initializing from null Collection throws NPE |
116 |
dl |
1.4 |
*/ |
117 |
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public void testConstructor3() { |
118 |
dl |
1.1 |
try { |
119 |
jsr166 |
1.48 |
new ArrayBlockingQueue(1, true, null); |
120 |
dl |
1.4 |
shouldThrow(); |
121 |
jsr166 |
1.17 |
} catch (NullPointerException success) {} |
122 |
dl |
1.1 |
} |
123 |
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|
124 |
dl |
1.4 |
/** |
125 |
dl |
1.5 |
* Initializing from Collection of null elements throws NPE |
126 |
dl |
1.4 |
*/ |
127 |
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public void testConstructor4() { |
128 |
jsr166 |
1.48 |
Collection<Integer> elements = Arrays.asList(new Integer[SIZE]); |
129 |
dl |
1.1 |
try { |
130 |
jsr166 |
1.48 |
new ArrayBlockingQueue(SIZE, false, elements); |
131 |
dl |
1.4 |
shouldThrow(); |
132 |
jsr166 |
1.17 |
} catch (NullPointerException success) {} |
133 |
dl |
1.1 |
} |
134 |
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|
135 |
dl |
1.4 |
/** |
136 |
dl |
1.5 |
* Initializing from Collection with some null elements throws NPE |
137 |
dl |
1.4 |
*/ |
138 |
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public void testConstructor5() { |
139 |
jsr166 |
1.48 |
Integer[] ints = new Integer[SIZE]; |
140 |
jsr166 |
1.66 |
for (int i = 0; i < SIZE - 1; ++i) |
141 |
jsr166 |
1.48 |
ints[i] = i; |
142 |
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Collection<Integer> elements = Arrays.asList(ints); |
143 |
dl |
1.1 |
try { |
144 |
jsr166 |
1.62 |
new ArrayBlockingQueue(SIZE, false, elements); |
145 |
dl |
1.4 |
shouldThrow(); |
146 |
jsr166 |
1.17 |
} catch (NullPointerException success) {} |
147 |
dl |
1.1 |
} |
148 |
|
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|
149 |
dl |
1.4 |
/** |
150 |
dl |
1.5 |
* Initializing from too large collection throws IAE |
151 |
dl |
1.4 |
*/ |
152 |
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public void testConstructor6() { |
153 |
jsr166 |
1.48 |
Integer[] ints = new Integer[SIZE]; |
154 |
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for (int i = 0; i < SIZE; ++i) |
155 |
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ints[i] = i; |
156 |
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Collection<Integer> elements = Arrays.asList(ints); |
157 |
dl |
1.1 |
try { |
158 |
jsr166 |
1.48 |
new ArrayBlockingQueue(SIZE - 1, false, elements); |
159 |
dl |
1.4 |
shouldThrow(); |
160 |
jsr166 |
1.17 |
} catch (IllegalArgumentException success) {} |
161 |
dl |
1.1 |
} |
162 |
|
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|
163 |
dl |
1.4 |
/** |
164 |
dl |
1.5 |
* Queue contains all elements of collection used to initialize |
165 |
dl |
1.4 |
*/ |
166 |
|
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public void testConstructor7() { |
167 |
jsr166 |
1.19 |
Integer[] ints = new Integer[SIZE]; |
168 |
|
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for (int i = 0; i < SIZE; ++i) |
169 |
jsr166 |
1.48 |
ints[i] = i; |
170 |
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Collection<Integer> elements = Arrays.asList(ints); |
171 |
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ArrayBlockingQueue q = new ArrayBlockingQueue(SIZE, true, elements); |
172 |
jsr166 |
1.19 |
for (int i = 0; i < SIZE; ++i) |
173 |
|
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assertEquals(ints[i], q.poll()); |
174 |
dl |
1.1 |
} |
175 |
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|
176 |
dl |
1.4 |
/** |
177 |
dl |
1.5 |
* Queue transitions from empty to full when elements added |
178 |
dl |
1.4 |
*/ |
179 |
dl |
1.1 |
public void testEmptyFull() { |
180 |
|
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ArrayBlockingQueue q = new ArrayBlockingQueue(2); |
181 |
|
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assertTrue(q.isEmpty()); |
182 |
dl |
1.4 |
assertEquals(2, q.remainingCapacity()); |
183 |
dl |
1.3 |
q.add(one); |
184 |
dl |
1.1 |
assertFalse(q.isEmpty()); |
185 |
dl |
1.3 |
q.add(two); |
186 |
dl |
1.1 |
assertFalse(q.isEmpty()); |
187 |
dl |
1.4 |
assertEquals(0, q.remainingCapacity()); |
188 |
|
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assertFalse(q.offer(three)); |
189 |
dl |
1.1 |
} |
190 |
|
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|
191 |
dl |
1.4 |
/** |
192 |
dl |
1.5 |
* remainingCapacity decreases on add, increases on remove |
193 |
dl |
1.4 |
*/ |
194 |
|
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public void testRemainingCapacity() { |
195 |
jsr166 |
1.64 |
BlockingQueue q = populatedQueue(SIZE); |
196 |
dl |
1.3 |
for (int i = 0; i < SIZE; ++i) { |
197 |
dl |
1.1 |
assertEquals(i, q.remainingCapacity()); |
198 |
jsr166 |
1.64 |
assertEquals(SIZE, q.size() + q.remainingCapacity()); |
199 |
|
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assertEquals(i, q.remove()); |
200 |
dl |
1.1 |
} |
201 |
dl |
1.3 |
for (int i = 0; i < SIZE; ++i) { |
202 |
jsr166 |
1.66 |
assertEquals(SIZE - i, q.remainingCapacity()); |
203 |
jsr166 |
1.64 |
assertEquals(SIZE, q.size() + q.remainingCapacity()); |
204 |
|
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assertTrue(q.add(i)); |
205 |
dl |
1.1 |
} |
206 |
|
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} |
207 |
|
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|
208 |
dl |
1.4 |
/** |
209 |
dl |
1.5 |
* Offer succeeds if not full; fails if full |
210 |
dl |
1.4 |
*/ |
211 |
|
|
public void testOffer() { |
212 |
dl |
1.1 |
ArrayBlockingQueue q = new ArrayBlockingQueue(1); |
213 |
dl |
1.3 |
assertTrue(q.offer(zero)); |
214 |
|
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assertFalse(q.offer(one)); |
215 |
dl |
1.1 |
} |
216 |
|
|
|
217 |
dl |
1.4 |
/** |
218 |
dl |
1.5 |
* add succeeds if not full; throws ISE if full |
219 |
dl |
1.4 |
*/ |
220 |
|
|
public void testAdd() { |
221 |
jsr166 |
1.63 |
ArrayBlockingQueue q = new ArrayBlockingQueue(SIZE); |
222 |
|
|
for (int i = 0; i < SIZE; ++i) { |
223 |
|
|
assertTrue(q.add(new Integer(i))); |
224 |
|
|
} |
225 |
|
|
assertEquals(0, q.remainingCapacity()); |
226 |
jsr166 |
1.15 |
try { |
227 |
dl |
1.3 |
q.add(new Integer(SIZE)); |
228 |
jsr166 |
1.17 |
shouldThrow(); |
229 |
|
|
} catch (IllegalStateException success) {} |
230 |
dl |
1.1 |
} |
231 |
|
|
|
232 |
dl |
1.4 |
/** |
233 |
dl |
1.6 |
* addAll(this) throws IAE |
234 |
|
|
*/ |
235 |
|
|
public void testAddAllSelf() { |
236 |
jsr166 |
1.63 |
ArrayBlockingQueue q = populatedQueue(SIZE); |
237 |
dl |
1.6 |
try { |
238 |
|
|
q.addAll(q); |
239 |
|
|
shouldThrow(); |
240 |
jsr166 |
1.17 |
} catch (IllegalArgumentException success) {} |
241 |
dl |
1.6 |
} |
242 |
|
|
|
243 |
dl |
1.4 |
/** |
244 |
dl |
1.5 |
* addAll of a collection with any null elements throws NPE after |
245 |
|
|
* possibly adding some elements |
246 |
dl |
1.4 |
*/ |
247 |
|
|
public void testAddAll3() { |
248 |
jsr166 |
1.63 |
ArrayBlockingQueue q = new ArrayBlockingQueue(SIZE); |
249 |
|
|
Integer[] ints = new Integer[SIZE]; |
250 |
jsr166 |
1.66 |
for (int i = 0; i < SIZE - 1; ++i) |
251 |
jsr166 |
1.63 |
ints[i] = new Integer(i); |
252 |
dl |
1.1 |
try { |
253 |
|
|
q.addAll(Arrays.asList(ints)); |
254 |
dl |
1.4 |
shouldThrow(); |
255 |
jsr166 |
1.17 |
} catch (NullPointerException success) {} |
256 |
dl |
1.1 |
} |
257 |
jsr166 |
1.30 |
|
258 |
dl |
1.4 |
/** |
259 |
dl |
1.5 |
* addAll throws ISE if not enough room |
260 |
dl |
1.4 |
*/ |
261 |
|
|
public void testAddAll4() { |
262 |
jsr166 |
1.63 |
ArrayBlockingQueue q = new ArrayBlockingQueue(1); |
263 |
|
|
Integer[] ints = new Integer[SIZE]; |
264 |
|
|
for (int i = 0; i < SIZE; ++i) |
265 |
|
|
ints[i] = new Integer(i); |
266 |
dl |
1.1 |
try { |
267 |
|
|
q.addAll(Arrays.asList(ints)); |
268 |
dl |
1.4 |
shouldThrow(); |
269 |
jsr166 |
1.17 |
} catch (IllegalStateException success) {} |
270 |
dl |
1.1 |
} |
271 |
jsr166 |
1.30 |
|
272 |
dl |
1.4 |
/** |
273 |
dl |
1.5 |
* Queue contains all elements, in traversal order, of successful addAll |
274 |
dl |
1.4 |
*/ |
275 |
|
|
public void testAddAll5() { |
276 |
jsr166 |
1.17 |
Integer[] empty = new Integer[0]; |
277 |
|
|
Integer[] ints = new Integer[SIZE]; |
278 |
|
|
for (int i = 0; i < SIZE; ++i) |
279 |
|
|
ints[i] = new Integer(i); |
280 |
|
|
ArrayBlockingQueue q = new ArrayBlockingQueue(SIZE); |
281 |
|
|
assertFalse(q.addAll(Arrays.asList(empty))); |
282 |
|
|
assertTrue(q.addAll(Arrays.asList(ints))); |
283 |
|
|
for (int i = 0; i < SIZE; ++i) |
284 |
|
|
assertEquals(ints[i], q.poll()); |
285 |
dl |
1.1 |
} |
286 |
|
|
|
287 |
dl |
1.4 |
/** |
288 |
dl |
1.5 |
* all elements successfully put are contained |
289 |
dl |
1.4 |
*/ |
290 |
jsr166 |
1.17 |
public void testPut() throws InterruptedException { |
291 |
|
|
ArrayBlockingQueue q = new ArrayBlockingQueue(SIZE); |
292 |
|
|
for (int i = 0; i < SIZE; ++i) { |
293 |
jsr166 |
1.60 |
Integer x = new Integer(i); |
294 |
|
|
q.put(x); |
295 |
|
|
assertTrue(q.contains(x)); |
296 |
dl |
1.1 |
} |
297 |
jsr166 |
1.17 |
assertEquals(0, q.remainingCapacity()); |
298 |
dl |
1.1 |
} |
299 |
|
|
|
300 |
dl |
1.4 |
/** |
301 |
dl |
1.5 |
* put blocks interruptibly if full |
302 |
dl |
1.4 |
*/ |
303 |
jsr166 |
1.17 |
public void testBlockingPut() throws InterruptedException { |
304 |
dl |
1.10 |
final ArrayBlockingQueue q = new ArrayBlockingQueue(SIZE); |
305 |
jsr166 |
1.47 |
final CountDownLatch pleaseInterrupt = new CountDownLatch(1); |
306 |
|
|
Thread t = newStartedThread(new CheckedRunnable() { |
307 |
jsr166 |
1.25 |
public void realRun() throws InterruptedException { |
308 |
|
|
for (int i = 0; i < SIZE; ++i) |
309 |
|
|
q.put(i); |
310 |
|
|
assertEquals(SIZE, q.size()); |
311 |
|
|
assertEquals(0, q.remainingCapacity()); |
312 |
jsr166 |
1.47 |
|
313 |
|
|
Thread.currentThread().interrupt(); |
314 |
|
|
try { |
315 |
|
|
q.put(99); |
316 |
|
|
shouldThrow(); |
317 |
|
|
} catch (InterruptedException success) {} |
318 |
|
|
assertFalse(Thread.interrupted()); |
319 |
|
|
|
320 |
|
|
pleaseInterrupt.countDown(); |
321 |
jsr166 |
1.17 |
try { |
322 |
jsr166 |
1.25 |
q.put(99); |
323 |
|
|
shouldThrow(); |
324 |
|
|
} catch (InterruptedException success) {} |
325 |
jsr166 |
1.47 |
assertFalse(Thread.interrupted()); |
326 |
jsr166 |
1.25 |
}}); |
327 |
jsr166 |
1.17 |
|
328 |
jsr166 |
1.47 |
await(pleaseInterrupt); |
329 |
|
|
assertThreadStaysAlive(t); |
330 |
jsr166 |
1.17 |
t.interrupt(); |
331 |
jsr166 |
1.47 |
awaitTermination(t); |
332 |
jsr166 |
1.25 |
assertEquals(SIZE, q.size()); |
333 |
|
|
assertEquals(0, q.remainingCapacity()); |
334 |
dl |
1.1 |
} |
335 |
|
|
|
336 |
dl |
1.4 |
/** |
337 |
jsr166 |
1.47 |
* put blocks interruptibly waiting for take when full |
338 |
dl |
1.4 |
*/ |
339 |
jsr166 |
1.17 |
public void testPutWithTake() throws InterruptedException { |
340 |
jsr166 |
1.27 |
final int capacity = 2; |
341 |
|
|
final ArrayBlockingQueue q = new ArrayBlockingQueue(capacity); |
342 |
jsr166 |
1.47 |
final CountDownLatch pleaseTake = new CountDownLatch(1); |
343 |
|
|
final CountDownLatch pleaseInterrupt = new CountDownLatch(1); |
344 |
|
|
Thread t = newStartedThread(new CheckedRunnable() { |
345 |
jsr166 |
1.27 |
public void realRun() throws InterruptedException { |
346 |
jsr166 |
1.47 |
for (int i = 0; i < capacity; i++) |
347 |
jsr166 |
1.27 |
q.put(i); |
348 |
jsr166 |
1.47 |
pleaseTake.countDown(); |
349 |
|
|
q.put(86); |
350 |
|
|
|
351 |
|
|
pleaseInterrupt.countDown(); |
352 |
jsr166 |
1.17 |
try { |
353 |
jsr166 |
1.27 |
q.put(99); |
354 |
|
|
shouldThrow(); |
355 |
|
|
} catch (InterruptedException success) {} |
356 |
jsr166 |
1.47 |
assertFalse(Thread.interrupted()); |
357 |
jsr166 |
1.17 |
}}); |
358 |
|
|
|
359 |
jsr166 |
1.47 |
await(pleaseTake); |
360 |
jsr166 |
1.51 |
assertEquals(0, q.remainingCapacity()); |
361 |
jsr166 |
1.27 |
assertEquals(0, q.take()); |
362 |
jsr166 |
1.47 |
|
363 |
|
|
await(pleaseInterrupt); |
364 |
|
|
assertThreadStaysAlive(t); |
365 |
jsr166 |
1.17 |
t.interrupt(); |
366 |
jsr166 |
1.47 |
awaitTermination(t); |
367 |
jsr166 |
1.51 |
assertEquals(0, q.remainingCapacity()); |
368 |
dl |
1.1 |
} |
369 |
|
|
|
370 |
dl |
1.4 |
/** |
371 |
dl |
1.5 |
* timed offer times out if full and elements not taken |
372 |
dl |
1.4 |
*/ |
373 |
jsr166 |
1.17 |
public void testTimedOffer() throws InterruptedException { |
374 |
dl |
1.1 |
final ArrayBlockingQueue q = new ArrayBlockingQueue(2); |
375 |
jsr166 |
1.46 |
final CountDownLatch pleaseInterrupt = new CountDownLatch(1); |
376 |
|
|
Thread t = newStartedThread(new CheckedRunnable() { |
377 |
jsr166 |
1.17 |
public void realRun() throws InterruptedException { |
378 |
|
|
q.put(new Object()); |
379 |
|
|
q.put(new Object()); |
380 |
jsr166 |
1.46 |
long startTime = System.nanoTime(); |
381 |
|
|
assertFalse(q.offer(new Object(), timeoutMillis(), MILLISECONDS)); |
382 |
|
|
assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
383 |
|
|
pleaseInterrupt.countDown(); |
384 |
jsr166 |
1.24 |
try { |
385 |
jsr166 |
1.46 |
q.offer(new Object(), 2 * LONG_DELAY_MS, MILLISECONDS); |
386 |
jsr166 |
1.24 |
shouldThrow(); |
387 |
|
|
} catch (InterruptedException success) {} |
388 |
|
|
}}); |
389 |
jsr166 |
1.17 |
|
390 |
jsr166 |
1.46 |
await(pleaseInterrupt); |
391 |
jsr166 |
1.47 |
assertThreadStaysAlive(t); |
392 |
jsr166 |
1.17 |
t.interrupt(); |
393 |
jsr166 |
1.46 |
awaitTermination(t); |
394 |
dl |
1.1 |
} |
395 |
|
|
|
396 |
dl |
1.4 |
/** |
397 |
dl |
1.5 |
* take retrieves elements in FIFO order |
398 |
dl |
1.4 |
*/ |
399 |
jsr166 |
1.17 |
public void testTake() throws InterruptedException { |
400 |
|
|
ArrayBlockingQueue q = populatedQueue(SIZE); |
401 |
|
|
for (int i = 0; i < SIZE; ++i) { |
402 |
jsr166 |
1.25 |
assertEquals(i, q.take()); |
403 |
jsr166 |
1.15 |
} |
404 |
dl |
1.1 |
} |
405 |
|
|
|
406 |
dl |
1.4 |
/** |
407 |
dl |
1.5 |
* Take removes existing elements until empty, then blocks interruptibly |
408 |
dl |
1.4 |
*/ |
409 |
jsr166 |
1.17 |
public void testBlockingTake() throws InterruptedException { |
410 |
jsr166 |
1.25 |
final ArrayBlockingQueue q = populatedQueue(SIZE); |
411 |
jsr166 |
1.47 |
final CountDownLatch pleaseInterrupt = new CountDownLatch(1); |
412 |
|
|
Thread t = newStartedThread(new CheckedRunnable() { |
413 |
jsr166 |
1.17 |
public void realRun() throws InterruptedException { |
414 |
|
|
for (int i = 0; i < SIZE; ++i) { |
415 |
jsr166 |
1.25 |
assertEquals(i, q.take()); |
416 |
jsr166 |
1.17 |
} |
417 |
jsr166 |
1.47 |
|
418 |
|
|
Thread.currentThread().interrupt(); |
419 |
|
|
try { |
420 |
|
|
q.take(); |
421 |
|
|
shouldThrow(); |
422 |
|
|
} catch (InterruptedException success) {} |
423 |
|
|
assertFalse(Thread.interrupted()); |
424 |
|
|
|
425 |
|
|
pleaseInterrupt.countDown(); |
426 |
jsr166 |
1.25 |
try { |
427 |
|
|
q.take(); |
428 |
|
|
shouldThrow(); |
429 |
|
|
} catch (InterruptedException success) {} |
430 |
jsr166 |
1.47 |
assertFalse(Thread.interrupted()); |
431 |
jsr166 |
1.25 |
}}); |
432 |
jsr166 |
1.17 |
|
433 |
jsr166 |
1.47 |
await(pleaseInterrupt); |
434 |
|
|
assertThreadStaysAlive(t); |
435 |
jsr166 |
1.25 |
t.interrupt(); |
436 |
jsr166 |
1.47 |
awaitTermination(t); |
437 |
dl |
1.1 |
} |
438 |
|
|
|
439 |
dl |
1.4 |
/** |
440 |
dl |
1.5 |
* poll succeeds unless empty |
441 |
dl |
1.4 |
*/ |
442 |
|
|
public void testPoll() { |
443 |
dl |
1.3 |
ArrayBlockingQueue q = populatedQueue(SIZE); |
444 |
|
|
for (int i = 0; i < SIZE; ++i) { |
445 |
jsr166 |
1.25 |
assertEquals(i, q.poll()); |
446 |
dl |
1.1 |
} |
447 |
jsr166 |
1.15 |
assertNull(q.poll()); |
448 |
dl |
1.1 |
} |
449 |
|
|
|
450 |
dl |
1.4 |
/** |
451 |
jsr166 |
1.37 |
* timed poll with zero timeout succeeds when non-empty, else times out |
452 |
dl |
1.4 |
*/ |
453 |
jsr166 |
1.17 |
public void testTimedPoll0() throws InterruptedException { |
454 |
|
|
ArrayBlockingQueue q = populatedQueue(SIZE); |
455 |
|
|
for (int i = 0; i < SIZE; ++i) { |
456 |
jsr166 |
1.25 |
assertEquals(i, q.poll(0, MILLISECONDS)); |
457 |
jsr166 |
1.15 |
} |
458 |
jsr166 |
1.17 |
assertNull(q.poll(0, MILLISECONDS)); |
459 |
jsr166 |
1.47 |
checkEmpty(q); |
460 |
dl |
1.1 |
} |
461 |
|
|
|
462 |
dl |
1.4 |
/** |
463 |
jsr166 |
1.37 |
* timed poll with nonzero timeout succeeds when non-empty, else times out |
464 |
dl |
1.4 |
*/ |
465 |
jsr166 |
1.17 |
public void testTimedPoll() throws InterruptedException { |
466 |
|
|
ArrayBlockingQueue q = populatedQueue(SIZE); |
467 |
|
|
for (int i = 0; i < SIZE; ++i) { |
468 |
jsr166 |
1.47 |
long startTime = System.nanoTime(); |
469 |
|
|
assertEquals(i, q.poll(LONG_DELAY_MS, MILLISECONDS)); |
470 |
|
|
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
471 |
|
|
} |
472 |
|
|
long startTime = System.nanoTime(); |
473 |
|
|
assertNull(q.poll(timeoutMillis(), MILLISECONDS)); |
474 |
|
|
assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
475 |
|
|
checkEmpty(q); |
476 |
dl |
1.1 |
} |
477 |
|
|
|
478 |
dl |
1.4 |
/** |
479 |
dl |
1.5 |
* Interrupted timed poll throws InterruptedException instead of |
480 |
|
|
* returning timeout status |
481 |
dl |
1.4 |
*/ |
482 |
jsr166 |
1.17 |
public void testInterruptedTimedPoll() throws InterruptedException { |
483 |
jsr166 |
1.42 |
final BlockingQueue<Integer> q = populatedQueue(SIZE); |
484 |
|
|
final CountDownLatch aboutToWait = new CountDownLatch(1); |
485 |
|
|
Thread t = newStartedThread(new CheckedRunnable() { |
486 |
jsr166 |
1.17 |
public void realRun() throws InterruptedException { |
487 |
jsr166 |
1.70 |
long startTime = System.nanoTime(); |
488 |
jsr166 |
1.17 |
for (int i = 0; i < SIZE; ++i) { |
489 |
jsr166 |
1.70 |
assertEquals(i, (int) q.poll(LONG_DELAY_MS, MILLISECONDS)); |
490 |
jsr166 |
1.17 |
} |
491 |
jsr166 |
1.42 |
aboutToWait.countDown(); |
492 |
jsr166 |
1.21 |
try { |
493 |
jsr166 |
1.70 |
q.poll(LONG_DELAY_MS, MILLISECONDS); |
494 |
jsr166 |
1.22 |
shouldThrow(); |
495 |
jsr166 |
1.42 |
} catch (InterruptedException success) { |
496 |
jsr166 |
1.69 |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
497 |
jsr166 |
1.42 |
} |
498 |
jsr166 |
1.21 |
}}); |
499 |
jsr166 |
1.17 |
|
500 |
jsr166 |
1.69 |
await(aboutToWait); |
501 |
jsr166 |
1.71 |
waitForThreadToEnterWaitState(t); |
502 |
jsr166 |
1.17 |
t.interrupt(); |
503 |
jsr166 |
1.70 |
awaitTermination(t); |
504 |
jsr166 |
1.42 |
checkEmpty(q); |
505 |
dl |
1.1 |
} |
506 |
|
|
|
507 |
dl |
1.4 |
/** |
508 |
dl |
1.5 |
* peek returns next element, or null if empty |
509 |
dl |
1.4 |
*/ |
510 |
|
|
public void testPeek() { |
511 |
dl |
1.3 |
ArrayBlockingQueue q = populatedQueue(SIZE); |
512 |
|
|
for (int i = 0; i < SIZE; ++i) { |
513 |
jsr166 |
1.26 |
assertEquals(i, q.peek()); |
514 |
|
|
assertEquals(i, q.poll()); |
515 |
dl |
1.1 |
assertTrue(q.peek() == null || |
516 |
jsr166 |
1.26 |
!q.peek().equals(i)); |
517 |
dl |
1.1 |
} |
518 |
jsr166 |
1.15 |
assertNull(q.peek()); |
519 |
dl |
1.1 |
} |
520 |
|
|
|
521 |
dl |
1.4 |
/** |
522 |
dl |
1.5 |
* element returns next element, or throws NSEE if empty |
523 |
dl |
1.4 |
*/ |
524 |
|
|
public void testElement() { |
525 |
dl |
1.3 |
ArrayBlockingQueue q = populatedQueue(SIZE); |
526 |
|
|
for (int i = 0; i < SIZE; ++i) { |
527 |
jsr166 |
1.26 |
assertEquals(i, q.element()); |
528 |
|
|
assertEquals(i, q.poll()); |
529 |
dl |
1.1 |
} |
530 |
|
|
try { |
531 |
|
|
q.element(); |
532 |
dl |
1.4 |
shouldThrow(); |
533 |
jsr166 |
1.17 |
} catch (NoSuchElementException success) {} |
534 |
dl |
1.1 |
} |
535 |
|
|
|
536 |
dl |
1.4 |
/** |
537 |
dl |
1.5 |
* remove removes next element, or throws NSEE if empty |
538 |
dl |
1.4 |
*/ |
539 |
|
|
public void testRemove() { |
540 |
dl |
1.3 |
ArrayBlockingQueue q = populatedQueue(SIZE); |
541 |
|
|
for (int i = 0; i < SIZE; ++i) { |
542 |
jsr166 |
1.26 |
assertEquals(i, q.remove()); |
543 |
dl |
1.1 |
} |
544 |
|
|
try { |
545 |
|
|
q.remove(); |
546 |
dl |
1.4 |
shouldThrow(); |
547 |
jsr166 |
1.17 |
} catch (NoSuchElementException success) {} |
548 |
dl |
1.1 |
} |
549 |
|
|
|
550 |
dl |
1.4 |
/** |
551 |
dl |
1.5 |
* contains(x) reports true when elements added but not yet removed |
552 |
dl |
1.4 |
*/ |
553 |
|
|
public void testContains() { |
554 |
dl |
1.3 |
ArrayBlockingQueue q = populatedQueue(SIZE); |
555 |
|
|
for (int i = 0; i < SIZE; ++i) { |
556 |
dl |
1.1 |
assertTrue(q.contains(new Integer(i))); |
557 |
jsr166 |
1.26 |
assertEquals(i, q.poll()); |
558 |
dl |
1.1 |
assertFalse(q.contains(new Integer(i))); |
559 |
|
|
} |
560 |
|
|
} |
561 |
|
|
|
562 |
dl |
1.4 |
/** |
563 |
dl |
1.5 |
* clear removes all elements |
564 |
dl |
1.4 |
*/ |
565 |
|
|
public void testClear() { |
566 |
dl |
1.3 |
ArrayBlockingQueue q = populatedQueue(SIZE); |
567 |
dl |
1.1 |
q.clear(); |
568 |
|
|
assertTrue(q.isEmpty()); |
569 |
|
|
assertEquals(0, q.size()); |
570 |
dl |
1.3 |
assertEquals(SIZE, q.remainingCapacity()); |
571 |
|
|
q.add(one); |
572 |
dl |
1.1 |
assertFalse(q.isEmpty()); |
573 |
dl |
1.11 |
assertTrue(q.contains(one)); |
574 |
dl |
1.1 |
q.clear(); |
575 |
|
|
assertTrue(q.isEmpty()); |
576 |
|
|
} |
577 |
|
|
|
578 |
dl |
1.4 |
/** |
579 |
dl |
1.5 |
* containsAll(c) is true when c contains a subset of elements |
580 |
dl |
1.4 |
*/ |
581 |
|
|
public void testContainsAll() { |
582 |
dl |
1.3 |
ArrayBlockingQueue q = populatedQueue(SIZE); |
583 |
|
|
ArrayBlockingQueue p = new ArrayBlockingQueue(SIZE); |
584 |
|
|
for (int i = 0; i < SIZE; ++i) { |
585 |
dl |
1.1 |
assertTrue(q.containsAll(p)); |
586 |
|
|
assertFalse(p.containsAll(q)); |
587 |
|
|
p.add(new Integer(i)); |
588 |
|
|
} |
589 |
|
|
assertTrue(p.containsAll(q)); |
590 |
|
|
} |
591 |
|
|
|
592 |
dl |
1.4 |
/** |
593 |
dl |
1.5 |
* retainAll(c) retains only those elements of c and reports true if changed |
594 |
dl |
1.4 |
*/ |
595 |
|
|
public void testRetainAll() { |
596 |
dl |
1.3 |
ArrayBlockingQueue q = populatedQueue(SIZE); |
597 |
|
|
ArrayBlockingQueue p = populatedQueue(SIZE); |
598 |
|
|
for (int i = 0; i < SIZE; ++i) { |
599 |
dl |
1.1 |
boolean changed = q.retainAll(p); |
600 |
|
|
if (i == 0) |
601 |
|
|
assertFalse(changed); |
602 |
|
|
else |
603 |
|
|
assertTrue(changed); |
604 |
|
|
|
605 |
|
|
assertTrue(q.containsAll(p)); |
606 |
jsr166 |
1.66 |
assertEquals(SIZE - i, q.size()); |
607 |
dl |
1.1 |
p.remove(); |
608 |
|
|
} |
609 |
|
|
} |
610 |
|
|
|
611 |
dl |
1.4 |
/** |
612 |
dl |
1.5 |
* removeAll(c) removes only those elements of c and reports true if changed |
613 |
dl |
1.4 |
*/ |
614 |
|
|
public void testRemoveAll() { |
615 |
dl |
1.3 |
for (int i = 1; i < SIZE; ++i) { |
616 |
|
|
ArrayBlockingQueue q = populatedQueue(SIZE); |
617 |
|
|
ArrayBlockingQueue p = populatedQueue(i); |
618 |
dl |
1.1 |
assertTrue(q.removeAll(p)); |
619 |
jsr166 |
1.66 |
assertEquals(SIZE - i, q.size()); |
620 |
dl |
1.1 |
for (int j = 0; j < i; ++j) { |
621 |
jsr166 |
1.60 |
Integer x = (Integer)(p.remove()); |
622 |
|
|
assertFalse(q.contains(x)); |
623 |
dl |
1.1 |
} |
624 |
|
|
} |
625 |
|
|
} |
626 |
|
|
|
627 |
jsr166 |
1.74 |
void checkToArray(ArrayBlockingQueue<Integer> q) { |
628 |
jsr166 |
1.55 |
int size = q.size(); |
629 |
jsr166 |
1.74 |
Object[] a1 = q.toArray(); |
630 |
|
|
assertEquals(size, a1.length); |
631 |
|
|
Integer[] a2 = q.toArray(new Integer[0]); |
632 |
|
|
assertEquals(size, a2.length); |
633 |
|
|
Integer[] a3 = q.toArray(new Integer[Math.max(0, size - 1)]); |
634 |
|
|
assertEquals(size, a3.length); |
635 |
|
|
Integer[] a4 = new Integer[size]; |
636 |
|
|
assertSame(a4, q.toArray(a4)); |
637 |
|
|
Integer[] a5 = new Integer[size + 1]; |
638 |
|
|
Arrays.fill(a5, 42); |
639 |
|
|
assertSame(a5, q.toArray(a5)); |
640 |
|
|
Integer[] a6 = new Integer[size + 2]; |
641 |
|
|
Arrays.fill(a6, 42); |
642 |
|
|
assertSame(a6, q.toArray(a6)); |
643 |
|
|
Object[][] as = { a1, a2, a3, a4, a5, a6 }; |
644 |
|
|
for (Object[] a : as) { |
645 |
|
|
if (a.length > size) assertNull(a[size]); |
646 |
|
|
if (a.length > size + 1) assertEquals(42, a[size + 1]); |
647 |
|
|
} |
648 |
jsr166 |
1.55 |
Iterator it = q.iterator(); |
649 |
jsr166 |
1.74 |
Integer s = q.peek(); |
650 |
jsr166 |
1.55 |
for (int i = 0; i < size; i++) { |
651 |
|
|
Integer x = (Integer) it.next(); |
652 |
jsr166 |
1.74 |
assertEquals(s + i, (int) x); |
653 |
|
|
for (Object[] a : as) |
654 |
|
|
assertSame(a1[i], x); |
655 |
jsr166 |
1.55 |
} |
656 |
|
|
} |
657 |
|
|
|
658 |
dl |
1.4 |
/** |
659 |
jsr166 |
1.74 |
* toArray() and toArray(a) contain all elements in FIFO order |
660 |
dl |
1.4 |
*/ |
661 |
jsr166 |
1.40 |
public void testToArray() { |
662 |
jsr166 |
1.74 |
final ThreadLocalRandom rnd = ThreadLocalRandom.current(); |
663 |
|
|
final int size = rnd.nextInt(6); |
664 |
|
|
final int capacity = Math.max(1, size + rnd.nextInt(size + 1)); |
665 |
|
|
ArrayBlockingQueue<Integer> q = new ArrayBlockingQueue<>(capacity); |
666 |
|
|
for (int i = 0; i < size; i++) { |
667 |
jsr166 |
1.55 |
checkToArray(q); |
668 |
|
|
q.add(i); |
669 |
|
|
} |
670 |
|
|
// Provoke wraparound |
671 |
jsr166 |
1.74 |
int added = size * 2; |
672 |
|
|
for (int i = 0; i < added; i++) { |
673 |
jsr166 |
1.55 |
checkToArray(q); |
674 |
jsr166 |
1.74 |
assertEquals((Integer) i, q.poll()); |
675 |
|
|
q.add(size + i); |
676 |
jsr166 |
1.55 |
} |
677 |
jsr166 |
1.74 |
for (int i = 0; i < size; i++) { |
678 |
jsr166 |
1.55 |
checkToArray(q); |
679 |
jsr166 |
1.74 |
assertEquals((Integer) (added + i), q.poll()); |
680 |
jsr166 |
1.55 |
} |
681 |
dl |
1.1 |
} |
682 |
dl |
1.6 |
|
683 |
|
|
/** |
684 |
jsr166 |
1.38 |
* toArray(incompatible array type) throws ArrayStoreException |
685 |
dl |
1.6 |
*/ |
686 |
jsr166 |
1.74 |
public void testToArray_incompatibleArrayType() { |
687 |
jsr166 |
1.26 |
ArrayBlockingQueue q = populatedQueue(SIZE); |
688 |
jsr166 |
1.15 |
try { |
689 |
jsr166 |
1.38 |
q.toArray(new String[10]); |
690 |
jsr166 |
1.15 |
shouldThrow(); |
691 |
jsr166 |
1.18 |
} catch (ArrayStoreException success) {} |
692 |
jsr166 |
1.74 |
try { |
693 |
|
|
q.toArray(new String[0]); |
694 |
|
|
shouldThrow(); |
695 |
|
|
} catch (ArrayStoreException success) {} |
696 |
dl |
1.6 |
} |
697 |
|
|
|
698 |
dl |
1.4 |
/** |
699 |
dl |
1.5 |
* iterator iterates through all elements |
700 |
dl |
1.4 |
*/ |
701 |
jsr166 |
1.17 |
public void testIterator() throws InterruptedException { |
702 |
dl |
1.3 |
ArrayBlockingQueue q = populatedQueue(SIZE); |
703 |
jsr166 |
1.15 |
Iterator it = q.iterator(); |
704 |
jsr166 |
1.61 |
int i; |
705 |
|
|
for (i = 0; it.hasNext(); i++) |
706 |
|
|
assertTrue(q.contains(it.next())); |
707 |
|
|
assertEquals(i, SIZE); |
708 |
|
|
assertIteratorExhausted(it); |
709 |
|
|
|
710 |
|
|
it = q.iterator(); |
711 |
|
|
for (i = 0; it.hasNext(); i++) |
712 |
jsr166 |
1.17 |
assertEquals(it.next(), q.take()); |
713 |
jsr166 |
1.61 |
assertEquals(i, SIZE); |
714 |
|
|
assertIteratorExhausted(it); |
715 |
|
|
} |
716 |
|
|
|
717 |
|
|
/** |
718 |
|
|
* iterator of empty collection has no elements |
719 |
|
|
*/ |
720 |
|
|
public void testEmptyIterator() { |
721 |
|
|
assertIteratorExhausted(new ArrayBlockingQueue(SIZE).iterator()); |
722 |
dl |
1.1 |
} |
723 |
|
|
|
724 |
dl |
1.4 |
/** |
725 |
dl |
1.5 |
* iterator.remove removes current element |
726 |
|
|
*/ |
727 |
jsr166 |
1.29 |
public void testIteratorRemove() { |
728 |
dl |
1.5 |
final ArrayBlockingQueue q = new ArrayBlockingQueue(3); |
729 |
|
|
q.add(two); |
730 |
|
|
q.add(one); |
731 |
|
|
q.add(three); |
732 |
|
|
|
733 |
|
|
Iterator it = q.iterator(); |
734 |
|
|
it.next(); |
735 |
|
|
it.remove(); |
736 |
jsr166 |
1.12 |
|
737 |
dl |
1.5 |
it = q.iterator(); |
738 |
jsr166 |
1.28 |
assertSame(it.next(), one); |
739 |
|
|
assertSame(it.next(), three); |
740 |
dl |
1.5 |
assertFalse(it.hasNext()); |
741 |
|
|
} |
742 |
|
|
|
743 |
|
|
/** |
744 |
|
|
* iterator ordering is FIFO |
745 |
dl |
1.4 |
*/ |
746 |
dl |
1.1 |
public void testIteratorOrdering() { |
747 |
|
|
final ArrayBlockingQueue q = new ArrayBlockingQueue(3); |
748 |
dl |
1.3 |
q.add(one); |
749 |
|
|
q.add(two); |
750 |
|
|
q.add(three); |
751 |
dl |
1.1 |
|
752 |
|
|
assertEquals("queue should be full", 0, q.remainingCapacity()); |
753 |
|
|
|
754 |
|
|
int k = 0; |
755 |
|
|
for (Iterator it = q.iterator(); it.hasNext();) { |
756 |
jsr166 |
1.26 |
assertEquals(++k, it.next()); |
757 |
dl |
1.1 |
} |
758 |
dl |
1.4 |
assertEquals(3, k); |
759 |
dl |
1.1 |
} |
760 |
|
|
|
761 |
dl |
1.4 |
/** |
762 |
dl |
1.5 |
* Modifications do not cause iterators to fail |
763 |
dl |
1.4 |
*/ |
764 |
jsr166 |
1.29 |
public void testWeaklyConsistentIteration() { |
765 |
dl |
1.1 |
final ArrayBlockingQueue q = new ArrayBlockingQueue(3); |
766 |
dl |
1.3 |
q.add(one); |
767 |
|
|
q.add(two); |
768 |
|
|
q.add(three); |
769 |
jsr166 |
1.17 |
for (Iterator it = q.iterator(); it.hasNext();) { |
770 |
|
|
q.remove(); |
771 |
|
|
it.next(); |
772 |
dl |
1.1 |
} |
773 |
dl |
1.4 |
assertEquals(0, q.size()); |
774 |
dl |
1.1 |
} |
775 |
|
|
|
776 |
dl |
1.4 |
/** |
777 |
dl |
1.5 |
* toString contains toStrings of elements |
778 |
dl |
1.4 |
*/ |
779 |
|
|
public void testToString() { |
780 |
dl |
1.3 |
ArrayBlockingQueue q = populatedQueue(SIZE); |
781 |
dl |
1.1 |
String s = q.toString(); |
782 |
dl |
1.3 |
for (int i = 0; i < SIZE; ++i) { |
783 |
jsr166 |
1.47 |
assertTrue(s.contains(String.valueOf(i))); |
784 |
dl |
1.1 |
} |
785 |
jsr166 |
1.12 |
} |
786 |
dl |
1.1 |
|
787 |
dl |
1.4 |
/** |
788 |
dl |
1.5 |
* offer transfers elements across Executor tasks |
789 |
dl |
1.4 |
*/ |
790 |
dl |
1.1 |
public void testOfferInExecutor() { |
791 |
|
|
final ArrayBlockingQueue q = new ArrayBlockingQueue(2); |
792 |
dl |
1.3 |
q.add(one); |
793 |
|
|
q.add(two); |
794 |
jsr166 |
1.47 |
final CheckedBarrier threadsStarted = new CheckedBarrier(2); |
795 |
jsr166 |
1.68 |
final ExecutorService executor = Executors.newFixedThreadPool(2); |
796 |
|
|
try (PoolCleaner cleaner = cleaner(executor)) { |
797 |
|
|
executor.execute(new CheckedRunnable() { |
798 |
|
|
public void realRun() throws InterruptedException { |
799 |
|
|
assertFalse(q.offer(three)); |
800 |
|
|
threadsStarted.await(); |
801 |
|
|
assertTrue(q.offer(three, LONG_DELAY_MS, MILLISECONDS)); |
802 |
|
|
assertEquals(0, q.remainingCapacity()); |
803 |
|
|
}}); |
804 |
|
|
|
805 |
|
|
executor.execute(new CheckedRunnable() { |
806 |
|
|
public void realRun() throws InterruptedException { |
807 |
|
|
threadsStarted.await(); |
808 |
|
|
assertEquals(0, q.remainingCapacity()); |
809 |
|
|
assertSame(one, q.take()); |
810 |
|
|
}}); |
811 |
|
|
} |
812 |
dl |
1.1 |
} |
813 |
|
|
|
814 |
dl |
1.4 |
/** |
815 |
jsr166 |
1.47 |
* timed poll retrieves elements across Executor threads |
816 |
dl |
1.4 |
*/ |
817 |
dl |
1.1 |
public void testPollInExecutor() { |
818 |
|
|
final ArrayBlockingQueue q = new ArrayBlockingQueue(2); |
819 |
jsr166 |
1.47 |
final CheckedBarrier threadsStarted = new CheckedBarrier(2); |
820 |
jsr166 |
1.68 |
final ExecutorService executor = Executors.newFixedThreadPool(2); |
821 |
|
|
try (PoolCleaner cleaner = cleaner(executor)) { |
822 |
|
|
executor.execute(new CheckedRunnable() { |
823 |
|
|
public void realRun() throws InterruptedException { |
824 |
|
|
assertNull(q.poll()); |
825 |
|
|
threadsStarted.await(); |
826 |
|
|
assertSame(one, q.poll(LONG_DELAY_MS, MILLISECONDS)); |
827 |
|
|
checkEmpty(q); |
828 |
|
|
}}); |
829 |
|
|
|
830 |
|
|
executor.execute(new CheckedRunnable() { |
831 |
|
|
public void realRun() throws InterruptedException { |
832 |
|
|
threadsStarted.await(); |
833 |
|
|
q.put(one); |
834 |
|
|
}}); |
835 |
|
|
} |
836 |
dl |
1.1 |
} |
837 |
dl |
1.2 |
|
838 |
dl |
1.4 |
/** |
839 |
dl |
1.5 |
* A deserialized serialized queue has same elements in same order |
840 |
dl |
1.4 |
*/ |
841 |
jsr166 |
1.17 |
public void testSerialization() throws Exception { |
842 |
jsr166 |
1.49 |
Queue x = populatedQueue(SIZE); |
843 |
|
|
Queue y = serialClone(x); |
844 |
dl |
1.2 |
|
845 |
jsr166 |
1.56 |
assertNotSame(x, y); |
846 |
jsr166 |
1.49 |
assertEquals(x.size(), y.size()); |
847 |
|
|
assertEquals(x.toString(), y.toString()); |
848 |
|
|
assertTrue(Arrays.equals(x.toArray(), y.toArray())); |
849 |
|
|
while (!x.isEmpty()) { |
850 |
|
|
assertFalse(y.isEmpty()); |
851 |
|
|
assertEquals(x.remove(), y.remove()); |
852 |
|
|
} |
853 |
|
|
assertTrue(y.isEmpty()); |
854 |
dl |
1.6 |
} |
855 |
|
|
|
856 |
|
|
/** |
857 |
|
|
* drainTo(c) empties queue into another collection c |
858 |
jsr166 |
1.12 |
*/ |
859 |
dl |
1.6 |
public void testDrainTo() { |
860 |
|
|
ArrayBlockingQueue q = populatedQueue(SIZE); |
861 |
|
|
ArrayList l = new ArrayList(); |
862 |
|
|
q.drainTo(l); |
863 |
jsr166 |
1.51 |
assertEquals(0, q.size()); |
864 |
|
|
assertEquals(SIZE, l.size()); |
865 |
jsr166 |
1.12 |
for (int i = 0; i < SIZE; ++i) |
866 |
dl |
1.6 |
assertEquals(l.get(i), new Integer(i)); |
867 |
dl |
1.11 |
q.add(zero); |
868 |
|
|
q.add(one); |
869 |
|
|
assertFalse(q.isEmpty()); |
870 |
|
|
assertTrue(q.contains(zero)); |
871 |
|
|
assertTrue(q.contains(one)); |
872 |
|
|
l.clear(); |
873 |
|
|
q.drainTo(l); |
874 |
jsr166 |
1.51 |
assertEquals(0, q.size()); |
875 |
|
|
assertEquals(2, l.size()); |
876 |
jsr166 |
1.12 |
for (int i = 0; i < 2; ++i) |
877 |
dl |
1.11 |
assertEquals(l.get(i), new Integer(i)); |
878 |
dl |
1.6 |
} |
879 |
|
|
|
880 |
|
|
/** |
881 |
|
|
* drainTo empties full queue, unblocking a waiting put. |
882 |
jsr166 |
1.12 |
*/ |
883 |
jsr166 |
1.17 |
public void testDrainToWithActivePut() throws InterruptedException { |
884 |
dl |
1.6 |
final ArrayBlockingQueue q = populatedQueue(SIZE); |
885 |
jsr166 |
1.17 |
Thread t = new Thread(new CheckedRunnable() { |
886 |
|
|
public void realRun() throws InterruptedException { |
887 |
jsr166 |
1.66 |
q.put(new Integer(SIZE + 1)); |
888 |
jsr166 |
1.17 |
}}); |
889 |
|
|
|
890 |
|
|
t.start(); |
891 |
|
|
ArrayList l = new ArrayList(); |
892 |
|
|
q.drainTo(l); |
893 |
|
|
assertTrue(l.size() >= SIZE); |
894 |
|
|
for (int i = 0; i < SIZE; ++i) |
895 |
|
|
assertEquals(l.get(i), new Integer(i)); |
896 |
|
|
t.join(); |
897 |
|
|
assertTrue(q.size() + l.size() >= SIZE); |
898 |
dl |
1.6 |
} |
899 |
|
|
|
900 |
|
|
/** |
901 |
jsr166 |
1.34 |
* drainTo(c, n) empties first min(n, size) elements of queue into c |
902 |
jsr166 |
1.12 |
*/ |
903 |
dl |
1.6 |
public void testDrainToN() { |
904 |
jsr166 |
1.66 |
ArrayBlockingQueue q = new ArrayBlockingQueue(SIZE * 2); |
905 |
dl |
1.6 |
for (int i = 0; i < SIZE + 2; ++i) { |
906 |
jsr166 |
1.13 |
for (int j = 0; j < SIZE; j++) |
907 |
dl |
1.11 |
assertTrue(q.offer(new Integer(j))); |
908 |
dl |
1.6 |
ArrayList l = new ArrayList(); |
909 |
|
|
q.drainTo(l, i); |
910 |
jsr166 |
1.35 |
int k = (i < SIZE) ? i : SIZE; |
911 |
jsr166 |
1.52 |
assertEquals(k, l.size()); |
912 |
jsr166 |
1.66 |
assertEquals(SIZE - k, q.size()); |
913 |
jsr166 |
1.12 |
for (int j = 0; j < k; ++j) |
914 |
dl |
1.6 |
assertEquals(l.get(j), new Integer(j)); |
915 |
jsr166 |
1.59 |
do {} while (q.poll() != null); |
916 |
dl |
1.2 |
} |
917 |
|
|
} |
918 |
|
|
|
919 |
jsr166 |
1.57 |
/** |
920 |
|
|
* remove(null), contains(null) always return false |
921 |
|
|
*/ |
922 |
|
|
public void testNeverContainsNull() { |
923 |
|
|
Collection<?>[] qs = { |
924 |
|
|
new ArrayBlockingQueue<Object>(10), |
925 |
|
|
populatedQueue(2), |
926 |
|
|
}; |
927 |
|
|
|
928 |
|
|
for (Collection<?> q : qs) { |
929 |
|
|
assertFalse(q.contains(null)); |
930 |
|
|
assertFalse(q.remove(null)); |
931 |
|
|
} |
932 |
|
|
} |
933 |
dl |
1.1 |
} |