1 |
dl |
1.1 |
/* |
2 |
dl |
1.8 |
* Written by Doug Lea with assistance from members of JCP JSR-166 |
3 |
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* Expert Group and released to the public domain, as explained at |
4 |
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* http://creativecommons.org/licenses/publicdomain |
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 |
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import junit.framework.*; |
10 |
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import java.util.*; |
11 |
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import java.util.concurrent.*; |
12 |
jsr166 |
1.17 |
import static java.util.concurrent.TimeUnit.MILLISECONDS; |
13 |
dl |
1.2 |
import java.io.*; |
14 |
dl |
1.1 |
|
15 |
dl |
1.3 |
public class PriorityBlockingQueueTest extends JSR166TestCase { |
16 |
dl |
1.1 |
public static void main(String[] args) { |
17 |
jsr166 |
1.26 |
junit.textui.TestRunner.run(suite()); |
18 |
dl |
1.1 |
} |
19 |
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public static Test suite() { |
20 |
jsr166 |
1.16 |
return new TestSuite(PriorityBlockingQueueTest.class); |
21 |
dl |
1.1 |
} |
22 |
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23 |
dl |
1.3 |
private static final int NOCAP = Integer.MAX_VALUE; |
24 |
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25 |
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/** Sample Comparator */ |
26 |
jsr166 |
1.12 |
static class MyReverseComparator implements Comparator { |
27 |
dl |
1.1 |
public int compare(Object x, Object y) { |
28 |
jsr166 |
1.24 |
return ((Comparable)y).compareTo(x); |
29 |
dl |
1.1 |
} |
30 |
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} |
31 |
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32 |
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/** |
33 |
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* Create a queue of given size containing consecutive |
34 |
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* Integers 0 ... n. |
35 |
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*/ |
36 |
dl |
1.3 |
private PriorityBlockingQueue populatedQueue(int n) { |
37 |
dl |
1.1 |
PriorityBlockingQueue q = new PriorityBlockingQueue(n); |
38 |
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assertTrue(q.isEmpty()); |
39 |
jsr166 |
1.16 |
for (int i = n-1; i >= 0; i-=2) |
40 |
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assertTrue(q.offer(new Integer(i))); |
41 |
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for (int i = (n & 1); i < n; i+=2) |
42 |
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assertTrue(q.offer(new Integer(i))); |
43 |
dl |
1.1 |
assertFalse(q.isEmpty()); |
44 |
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assertEquals(NOCAP, q.remainingCapacity()); |
45 |
jsr166 |
1.16 |
assertEquals(n, q.size()); |
46 |
dl |
1.1 |
return q; |
47 |
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} |
48 |
jsr166 |
1.12 |
|
49 |
dl |
1.5 |
/** |
50 |
dl |
1.6 |
* A new queue has unbounded capacity |
51 |
dl |
1.5 |
*/ |
52 |
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public void testConstructor1() { |
53 |
dl |
1.3 |
assertEquals(NOCAP, new PriorityBlockingQueue(SIZE).remainingCapacity()); |
54 |
dl |
1.1 |
} |
55 |
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|
56 |
dl |
1.5 |
/** |
57 |
jsr166 |
1.19 |
* Constructor throws IAE if capacity argument nonpositive |
58 |
dl |
1.5 |
*/ |
59 |
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public void testConstructor2() { |
60 |
dl |
1.1 |
try { |
61 |
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PriorityBlockingQueue q = new PriorityBlockingQueue(0); |
62 |
dl |
1.5 |
shouldThrow(); |
63 |
jsr166 |
1.15 |
} catch (IllegalArgumentException success) {} |
64 |
dl |
1.1 |
} |
65 |
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|
66 |
dl |
1.5 |
/** |
67 |
dl |
1.6 |
* Initializing from null Collection throws NPE |
68 |
dl |
1.5 |
*/ |
69 |
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public void testConstructor3() { |
70 |
dl |
1.1 |
try { |
71 |
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PriorityBlockingQueue q = new PriorityBlockingQueue(null); |
72 |
dl |
1.5 |
shouldThrow(); |
73 |
jsr166 |
1.15 |
} catch (NullPointerException success) {} |
74 |
dl |
1.1 |
} |
75 |
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|
76 |
dl |
1.5 |
/** |
77 |
dl |
1.6 |
* Initializing from Collection of null elements throws NPE |
78 |
dl |
1.5 |
*/ |
79 |
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public void testConstructor4() { |
80 |
dl |
1.1 |
try { |
81 |
dl |
1.3 |
Integer[] ints = new Integer[SIZE]; |
82 |
dl |
1.1 |
PriorityBlockingQueue q = new PriorityBlockingQueue(Arrays.asList(ints)); |
83 |
dl |
1.5 |
shouldThrow(); |
84 |
jsr166 |
1.15 |
} catch (NullPointerException success) {} |
85 |
dl |
1.1 |
} |
86 |
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|
87 |
dl |
1.5 |
/** |
88 |
dl |
1.6 |
* Initializing from Collection with some null elements throws NPE |
89 |
dl |
1.5 |
*/ |
90 |
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public void testConstructor5() { |
91 |
dl |
1.1 |
try { |
92 |
dl |
1.3 |
Integer[] ints = new Integer[SIZE]; |
93 |
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for (int i = 0; i < SIZE-1; ++i) |
94 |
dl |
1.1 |
ints[i] = new Integer(i); |
95 |
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PriorityBlockingQueue q = new PriorityBlockingQueue(Arrays.asList(ints)); |
96 |
dl |
1.5 |
shouldThrow(); |
97 |
jsr166 |
1.15 |
} catch (NullPointerException success) {} |
98 |
dl |
1.1 |
} |
99 |
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|
100 |
dl |
1.5 |
/** |
101 |
dl |
1.6 |
* Queue contains all elements of collection used to initialize |
102 |
dl |
1.5 |
*/ |
103 |
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public void testConstructor6() { |
104 |
jsr166 |
1.15 |
Integer[] ints = new Integer[SIZE]; |
105 |
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for (int i = 0; i < SIZE; ++i) |
106 |
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ints[i] = new Integer(i); |
107 |
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PriorityBlockingQueue q = new PriorityBlockingQueue(Arrays.asList(ints)); |
108 |
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for (int i = 0; i < SIZE; ++i) |
109 |
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assertEquals(ints[i], q.poll()); |
110 |
dl |
1.1 |
} |
111 |
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112 |
dl |
1.5 |
/** |
113 |
dl |
1.6 |
* The comparator used in constructor is used |
114 |
dl |
1.5 |
*/ |
115 |
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public void testConstructor7() { |
116 |
jsr166 |
1.15 |
MyReverseComparator cmp = new MyReverseComparator(); |
117 |
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PriorityBlockingQueue q = new PriorityBlockingQueue(SIZE, cmp); |
118 |
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assertEquals(cmp, q.comparator()); |
119 |
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Integer[] ints = new Integer[SIZE]; |
120 |
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for (int i = 0; i < SIZE; ++i) |
121 |
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ints[i] = new Integer(i); |
122 |
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q.addAll(Arrays.asList(ints)); |
123 |
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for (int i = SIZE-1; i >= 0; --i) |
124 |
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assertEquals(ints[i], q.poll()); |
125 |
dl |
1.1 |
} |
126 |
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|
127 |
dl |
1.5 |
/** |
128 |
dl |
1.6 |
* isEmpty is true before add, false after |
129 |
dl |
1.5 |
*/ |
130 |
dl |
1.1 |
public void testEmpty() { |
131 |
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PriorityBlockingQueue q = new PriorityBlockingQueue(2); |
132 |
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assertTrue(q.isEmpty()); |
133 |
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assertEquals(NOCAP, q.remainingCapacity()); |
134 |
dl |
1.6 |
q.add(one); |
135 |
dl |
1.1 |
assertFalse(q.isEmpty()); |
136 |
dl |
1.6 |
q.add(two); |
137 |
dl |
1.1 |
q.remove(); |
138 |
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q.remove(); |
139 |
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assertTrue(q.isEmpty()); |
140 |
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} |
141 |
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|
142 |
dl |
1.5 |
/** |
143 |
dl |
1.9 |
* remainingCapacity does not change when elements added or removed, |
144 |
dl |
1.6 |
* but size does |
145 |
dl |
1.5 |
*/ |
146 |
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public void testRemainingCapacity() { |
147 |
dl |
1.3 |
PriorityBlockingQueue q = populatedQueue(SIZE); |
148 |
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for (int i = 0; i < SIZE; ++i) { |
149 |
dl |
1.1 |
assertEquals(NOCAP, q.remainingCapacity()); |
150 |
dl |
1.3 |
assertEquals(SIZE-i, q.size()); |
151 |
dl |
1.1 |
q.remove(); |
152 |
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} |
153 |
dl |
1.3 |
for (int i = 0; i < SIZE; ++i) { |
154 |
dl |
1.1 |
assertEquals(NOCAP, q.remainingCapacity()); |
155 |
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assertEquals(i, q.size()); |
156 |
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q.add(new Integer(i)); |
157 |
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} |
158 |
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} |
159 |
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|
160 |
dl |
1.5 |
/** |
161 |
dl |
1.6 |
* offer(null) throws NPE |
162 |
dl |
1.5 |
*/ |
163 |
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public void testOfferNull() { |
164 |
jsr166 |
1.16 |
try { |
165 |
dl |
1.1 |
PriorityBlockingQueue q = new PriorityBlockingQueue(1); |
166 |
|
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q.offer(null); |
167 |
dl |
1.5 |
shouldThrow(); |
168 |
jsr166 |
1.15 |
} catch (NullPointerException success) {} |
169 |
dl |
1.1 |
} |
170 |
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|
171 |
dl |
1.5 |
/** |
172 |
dl |
1.7 |
* add(null) throws NPE |
173 |
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*/ |
174 |
|
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public void testAddNull() { |
175 |
jsr166 |
1.16 |
try { |
176 |
dl |
1.7 |
PriorityBlockingQueue q = new PriorityBlockingQueue(1); |
177 |
|
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q.add(null); |
178 |
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shouldThrow(); |
179 |
jsr166 |
1.15 |
} catch (NullPointerException success) {} |
180 |
dl |
1.7 |
} |
181 |
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|
182 |
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/** |
183 |
dl |
1.6 |
* Offer of comparable element succeeds |
184 |
dl |
1.5 |
*/ |
185 |
dl |
1.1 |
public void testOffer() { |
186 |
|
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PriorityBlockingQueue q = new PriorityBlockingQueue(1); |
187 |
dl |
1.6 |
assertTrue(q.offer(zero)); |
188 |
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assertTrue(q.offer(one)); |
189 |
dl |
1.1 |
} |
190 |
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|
191 |
dl |
1.5 |
/** |
192 |
dl |
1.6 |
* Offer of non-Comparable throws CCE |
193 |
dl |
1.5 |
*/ |
194 |
dl |
1.1 |
public void testOfferNonComparable() { |
195 |
|
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try { |
196 |
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PriorityBlockingQueue q = new PriorityBlockingQueue(1); |
197 |
|
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q.offer(new Object()); |
198 |
|
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q.offer(new Object()); |
199 |
|
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q.offer(new Object()); |
200 |
dl |
1.5 |
shouldThrow(); |
201 |
jsr166 |
1.15 |
} catch (ClassCastException success) {} |
202 |
dl |
1.1 |
} |
203 |
|
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|
204 |
dl |
1.5 |
/** |
205 |
dl |
1.6 |
* add of comparable succeeds |
206 |
dl |
1.5 |
*/ |
207 |
|
|
public void testAdd() { |
208 |
dl |
1.3 |
PriorityBlockingQueue q = new PriorityBlockingQueue(SIZE); |
209 |
|
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for (int i = 0; i < SIZE; ++i) { |
210 |
dl |
1.1 |
assertEquals(i, q.size()); |
211 |
|
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assertTrue(q.add(new Integer(i))); |
212 |
|
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} |
213 |
|
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} |
214 |
|
|
|
215 |
dl |
1.5 |
/** |
216 |
dl |
1.6 |
* addAll(null) throws NPE |
217 |
dl |
1.5 |
*/ |
218 |
|
|
public void testAddAll1() { |
219 |
dl |
1.1 |
try { |
220 |
|
|
PriorityBlockingQueue q = new PriorityBlockingQueue(1); |
221 |
|
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q.addAll(null); |
222 |
dl |
1.5 |
shouldThrow(); |
223 |
jsr166 |
1.15 |
} catch (NullPointerException success) {} |
224 |
dl |
1.1 |
} |
225 |
dl |
1.7 |
|
226 |
|
|
/** |
227 |
|
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* addAll(this) throws IAE |
228 |
|
|
*/ |
229 |
|
|
public void testAddAllSelf() { |
230 |
|
|
try { |
231 |
|
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PriorityBlockingQueue q = populatedQueue(SIZE); |
232 |
|
|
q.addAll(q); |
233 |
|
|
shouldThrow(); |
234 |
jsr166 |
1.15 |
} catch (IllegalArgumentException success) {} |
235 |
dl |
1.7 |
} |
236 |
|
|
|
237 |
dl |
1.5 |
/** |
238 |
dl |
1.6 |
* addAll of a collection with null elements throws NPE |
239 |
dl |
1.5 |
*/ |
240 |
|
|
public void testAddAll2() { |
241 |
dl |
1.1 |
try { |
242 |
dl |
1.3 |
PriorityBlockingQueue q = new PriorityBlockingQueue(SIZE); |
243 |
|
|
Integer[] ints = new Integer[SIZE]; |
244 |
dl |
1.1 |
q.addAll(Arrays.asList(ints)); |
245 |
dl |
1.5 |
shouldThrow(); |
246 |
jsr166 |
1.15 |
} catch (NullPointerException success) {} |
247 |
dl |
1.1 |
} |
248 |
dl |
1.5 |
/** |
249 |
dl |
1.6 |
* addAll of a collection with any null elements throws NPE after |
250 |
|
|
* possibly adding some elements |
251 |
dl |
1.5 |
*/ |
252 |
|
|
public void testAddAll3() { |
253 |
dl |
1.1 |
try { |
254 |
dl |
1.3 |
PriorityBlockingQueue q = new PriorityBlockingQueue(SIZE); |
255 |
|
|
Integer[] ints = new Integer[SIZE]; |
256 |
|
|
for (int i = 0; i < SIZE-1; ++i) |
257 |
dl |
1.1 |
ints[i] = new Integer(i); |
258 |
|
|
q.addAll(Arrays.asList(ints)); |
259 |
dl |
1.5 |
shouldThrow(); |
260 |
jsr166 |
1.15 |
} catch (NullPointerException success) {} |
261 |
dl |
1.1 |
} |
262 |
|
|
|
263 |
dl |
1.5 |
/** |
264 |
dl |
1.6 |
* Queue contains all elements of successful addAll |
265 |
dl |
1.5 |
*/ |
266 |
|
|
public void testAddAll5() { |
267 |
jsr166 |
1.15 |
Integer[] empty = new Integer[0]; |
268 |
|
|
Integer[] ints = new Integer[SIZE]; |
269 |
|
|
for (int i = SIZE-1; i >= 0; --i) |
270 |
|
|
ints[i] = new Integer(i); |
271 |
|
|
PriorityBlockingQueue q = new PriorityBlockingQueue(SIZE); |
272 |
|
|
assertFalse(q.addAll(Arrays.asList(empty))); |
273 |
|
|
assertTrue(q.addAll(Arrays.asList(ints))); |
274 |
|
|
for (int i = 0; i < SIZE; ++i) |
275 |
|
|
assertEquals(ints[i], q.poll()); |
276 |
dl |
1.1 |
} |
277 |
|
|
|
278 |
dl |
1.5 |
/** |
279 |
dl |
1.6 |
* put(null) throws NPE |
280 |
dl |
1.5 |
*/ |
281 |
dl |
1.1 |
public void testPutNull() { |
282 |
jsr166 |
1.16 |
try { |
283 |
dl |
1.3 |
PriorityBlockingQueue q = new PriorityBlockingQueue(SIZE); |
284 |
dl |
1.1 |
q.put(null); |
285 |
dl |
1.5 |
shouldThrow(); |
286 |
jsr166 |
1.15 |
} catch (NullPointerException success) {} |
287 |
dl |
1.1 |
} |
288 |
|
|
|
289 |
dl |
1.5 |
/** |
290 |
dl |
1.6 |
* all elements successfully put are contained |
291 |
dl |
1.5 |
*/ |
292 |
dl |
1.1 |
public void testPut() { |
293 |
jsr166 |
1.15 |
PriorityBlockingQueue q = new PriorityBlockingQueue(SIZE); |
294 |
|
|
for (int i = 0; i < SIZE; ++i) { |
295 |
|
|
Integer I = new Integer(i); |
296 |
|
|
q.put(I); |
297 |
|
|
assertTrue(q.contains(I)); |
298 |
dl |
1.1 |
} |
299 |
jsr166 |
1.15 |
assertEquals(SIZE, q.size()); |
300 |
dl |
1.1 |
} |
301 |
|
|
|
302 |
dl |
1.5 |
/** |
303 |
dl |
1.6 |
* put doesn't block waiting for take |
304 |
dl |
1.5 |
*/ |
305 |
jsr166 |
1.15 |
public void testPutWithTake() throws InterruptedException { |
306 |
dl |
1.1 |
final PriorityBlockingQueue q = new PriorityBlockingQueue(2); |
307 |
jsr166 |
1.15 |
final int size = 4; |
308 |
|
|
Thread t = new Thread(new CheckedRunnable() { |
309 |
|
|
public void realRun() { |
310 |
|
|
for (int i = 0; i < size; i++) |
311 |
|
|
q.put(new Integer(0)); |
312 |
|
|
}}); |
313 |
|
|
|
314 |
|
|
t.start(); |
315 |
|
|
Thread.sleep(SHORT_DELAY_MS); |
316 |
|
|
assertEquals(q.size(), size); |
317 |
|
|
q.take(); |
318 |
|
|
t.interrupt(); |
319 |
|
|
t.join(); |
320 |
dl |
1.1 |
} |
321 |
|
|
|
322 |
dl |
1.5 |
/** |
323 |
dl |
1.6 |
* timed offer does not time out |
324 |
dl |
1.5 |
*/ |
325 |
jsr166 |
1.15 |
public void testTimedOffer() throws InterruptedException { |
326 |
dl |
1.1 |
final PriorityBlockingQueue q = new PriorityBlockingQueue(2); |
327 |
jsr166 |
1.18 |
Thread t = new Thread(new CheckedRunnable() { |
328 |
|
|
public void realRun() { |
329 |
|
|
q.put(new Integer(0)); |
330 |
|
|
q.put(new Integer(0)); |
331 |
jsr166 |
1.22 |
assertTrue(q.offer(new Integer(0), SHORT_DELAY_MS, MILLISECONDS)); |
332 |
|
|
assertTrue(q.offer(new Integer(0), LONG_DELAY_MS, MILLISECONDS)); |
333 |
jsr166 |
1.18 |
}}); |
334 |
jsr166 |
1.12 |
|
335 |
jsr166 |
1.15 |
t.start(); |
336 |
|
|
Thread.sleep(SMALL_DELAY_MS); |
337 |
|
|
t.interrupt(); |
338 |
|
|
t.join(); |
339 |
dl |
1.1 |
} |
340 |
|
|
|
341 |
dl |
1.5 |
/** |
342 |
dl |
1.6 |
* take retrieves elements in priority order |
343 |
dl |
1.5 |
*/ |
344 |
jsr166 |
1.15 |
public void testTake() throws InterruptedException { |
345 |
|
|
PriorityBlockingQueue q = populatedQueue(SIZE); |
346 |
|
|
for (int i = 0; i < SIZE; ++i) { |
347 |
jsr166 |
1.24 |
assertEquals(i, q.take()); |
348 |
jsr166 |
1.15 |
} |
349 |
dl |
1.1 |
} |
350 |
|
|
|
351 |
dl |
1.5 |
/** |
352 |
dl |
1.6 |
* take blocks interruptibly when empty |
353 |
dl |
1.5 |
*/ |
354 |
jsr166 |
1.15 |
public void testTakeFromEmpty() throws InterruptedException { |
355 |
dl |
1.1 |
final PriorityBlockingQueue q = new PriorityBlockingQueue(2); |
356 |
jsr166 |
1.15 |
Thread t = new Thread(new CheckedInterruptedRunnable() { |
357 |
|
|
public void realRun() throws InterruptedException { |
358 |
|
|
q.take(); |
359 |
|
|
}}); |
360 |
|
|
|
361 |
|
|
t.start(); |
362 |
|
|
Thread.sleep(SHORT_DELAY_MS); |
363 |
|
|
t.interrupt(); |
364 |
|
|
t.join(); |
365 |
dl |
1.1 |
} |
366 |
|
|
|
367 |
dl |
1.5 |
/** |
368 |
dl |
1.6 |
* Take removes existing elements until empty, then blocks interruptibly |
369 |
dl |
1.5 |
*/ |
370 |
jsr166 |
1.15 |
public void testBlockingTake() throws InterruptedException { |
371 |
jsr166 |
1.23 |
final PriorityBlockingQueue q = populatedQueue(SIZE); |
372 |
|
|
Thread t = new Thread(new CheckedRunnable() { |
373 |
jsr166 |
1.15 |
public void realRun() throws InterruptedException { |
374 |
|
|
for (int i = 0; i < SIZE; ++i) { |
375 |
jsr166 |
1.23 |
assertEquals(i, q.take()); |
376 |
jsr166 |
1.15 |
} |
377 |
jsr166 |
1.23 |
try { |
378 |
|
|
q.take(); |
379 |
|
|
shouldThrow(); |
380 |
|
|
} catch (InterruptedException success) {} |
381 |
jsr166 |
1.15 |
}}); |
382 |
|
|
|
383 |
dl |
1.1 |
t.start(); |
384 |
jsr166 |
1.15 |
Thread.sleep(SHORT_DELAY_MS); |
385 |
|
|
t.interrupt(); |
386 |
|
|
t.join(); |
387 |
dl |
1.1 |
} |
388 |
|
|
|
389 |
|
|
|
390 |
dl |
1.5 |
/** |
391 |
dl |
1.6 |
* poll succeeds unless empty |
392 |
dl |
1.5 |
*/ |
393 |
|
|
public void testPoll() { |
394 |
dl |
1.3 |
PriorityBlockingQueue q = populatedQueue(SIZE); |
395 |
|
|
for (int i = 0; i < SIZE; ++i) { |
396 |
jsr166 |
1.24 |
assertEquals(i, q.poll()); |
397 |
dl |
1.1 |
} |
398 |
jsr166 |
1.16 |
assertNull(q.poll()); |
399 |
dl |
1.1 |
} |
400 |
|
|
|
401 |
dl |
1.5 |
/** |
402 |
dl |
1.6 |
* timed pool with zero timeout succeeds when non-empty, else times out |
403 |
dl |
1.5 |
*/ |
404 |
jsr166 |
1.15 |
public void testTimedPoll0() throws InterruptedException { |
405 |
|
|
PriorityBlockingQueue q = populatedQueue(SIZE); |
406 |
|
|
for (int i = 0; i < SIZE; ++i) { |
407 |
jsr166 |
1.24 |
assertEquals(i, q.poll(0, MILLISECONDS)); |
408 |
jsr166 |
1.15 |
} |
409 |
jsr166 |
1.17 |
assertNull(q.poll(0, MILLISECONDS)); |
410 |
dl |
1.1 |
} |
411 |
|
|
|
412 |
dl |
1.5 |
/** |
413 |
dl |
1.6 |
* timed pool with nonzero timeout succeeds when non-empty, else times out |
414 |
dl |
1.5 |
*/ |
415 |
jsr166 |
1.15 |
public void testTimedPoll() throws InterruptedException { |
416 |
|
|
PriorityBlockingQueue q = populatedQueue(SIZE); |
417 |
|
|
for (int i = 0; i < SIZE; ++i) { |
418 |
jsr166 |
1.24 |
assertEquals(i, q.poll(SHORT_DELAY_MS, MILLISECONDS)); |
419 |
jsr166 |
1.15 |
} |
420 |
jsr166 |
1.17 |
assertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS)); |
421 |
dl |
1.1 |
} |
422 |
|
|
|
423 |
dl |
1.5 |
/** |
424 |
dl |
1.6 |
* Interrupted timed poll throws InterruptedException instead of |
425 |
|
|
* returning timeout status |
426 |
dl |
1.5 |
*/ |
427 |
jsr166 |
1.15 |
public void testInterruptedTimedPoll() throws InterruptedException { |
428 |
|
|
Thread t = new Thread(new CheckedRunnable() { |
429 |
|
|
public void realRun() throws InterruptedException { |
430 |
|
|
PriorityBlockingQueue q = populatedQueue(SIZE); |
431 |
|
|
for (int i = 0; i < SIZE; ++i) { |
432 |
jsr166 |
1.24 |
assertEquals(i, q.poll(SHORT_DELAY_MS, MILLISECONDS)); |
433 |
jsr166 |
1.15 |
} |
434 |
|
|
try { |
435 |
jsr166 |
1.20 |
q.poll(SMALL_DELAY_MS, MILLISECONDS); |
436 |
jsr166 |
1.18 |
shouldThrow(); |
437 |
jsr166 |
1.15 |
} catch (InterruptedException success) {} |
438 |
|
|
}}); |
439 |
|
|
|
440 |
dl |
1.1 |
t.start(); |
441 |
jsr166 |
1.15 |
Thread.sleep(SHORT_DELAY_MS); |
442 |
|
|
t.interrupt(); |
443 |
|
|
t.join(); |
444 |
dl |
1.1 |
} |
445 |
|
|
|
446 |
dl |
1.5 |
/** |
447 |
dl |
1.6 |
* timed poll before a delayed offer fails; after offer succeeds; |
448 |
|
|
* on interruption throws |
449 |
dl |
1.5 |
*/ |
450 |
jsr166 |
1.15 |
public void testTimedPollWithOffer() throws InterruptedException { |
451 |
dl |
1.1 |
final PriorityBlockingQueue q = new PriorityBlockingQueue(2); |
452 |
jsr166 |
1.15 |
Thread t = new Thread(new CheckedRunnable() { |
453 |
|
|
public void realRun() throws InterruptedException { |
454 |
jsr166 |
1.18 |
assertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS)); |
455 |
jsr166 |
1.21 |
assertSame(zero, q.poll(MEDIUM_DELAY_MS, MILLISECONDS)); |
456 |
jsr166 |
1.15 |
try { |
457 |
jsr166 |
1.17 |
q.poll(LONG_DELAY_MS, MILLISECONDS); |
458 |
jsr166 |
1.21 |
shouldThrow(); |
459 |
jsr166 |
1.15 |
} catch (InterruptedException success) {} |
460 |
|
|
}}); |
461 |
|
|
|
462 |
|
|
t.start(); |
463 |
|
|
Thread.sleep(SMALL_DELAY_MS); |
464 |
jsr166 |
1.21 |
assertTrue(q.offer(zero, SHORT_DELAY_MS, MILLISECONDS)); |
465 |
jsr166 |
1.15 |
t.interrupt(); |
466 |
|
|
t.join(); |
467 |
jsr166 |
1.12 |
} |
468 |
dl |
1.1 |
|
469 |
|
|
|
470 |
dl |
1.5 |
/** |
471 |
dl |
1.6 |
* peek returns next element, or null if empty |
472 |
dl |
1.5 |
*/ |
473 |
|
|
public void testPeek() { |
474 |
dl |
1.3 |
PriorityBlockingQueue q = populatedQueue(SIZE); |
475 |
|
|
for (int i = 0; i < SIZE; ++i) { |
476 |
jsr166 |
1.24 |
assertEquals(i, q.peek()); |
477 |
|
|
assertEquals(i, q.poll()); |
478 |
dl |
1.1 |
assertTrue(q.peek() == null || |
479 |
jsr166 |
1.24 |
!q.peek().equals(i)); |
480 |
dl |
1.1 |
} |
481 |
jsr166 |
1.16 |
assertNull(q.peek()); |
482 |
dl |
1.1 |
} |
483 |
|
|
|
484 |
dl |
1.5 |
/** |
485 |
dl |
1.6 |
* element returns next element, or throws NSEE if empty |
486 |
dl |
1.5 |
*/ |
487 |
|
|
public void testElement() { |
488 |
dl |
1.3 |
PriorityBlockingQueue q = populatedQueue(SIZE); |
489 |
|
|
for (int i = 0; i < SIZE; ++i) { |
490 |
jsr166 |
1.24 |
assertEquals(i, q.element()); |
491 |
|
|
assertEquals(i, q.poll()); |
492 |
dl |
1.1 |
} |
493 |
|
|
try { |
494 |
|
|
q.element(); |
495 |
dl |
1.5 |
shouldThrow(); |
496 |
jsr166 |
1.15 |
} catch (NoSuchElementException success) {} |
497 |
dl |
1.1 |
} |
498 |
|
|
|
499 |
dl |
1.5 |
/** |
500 |
dl |
1.6 |
* remove removes next element, or throws NSEE if empty |
501 |
dl |
1.5 |
*/ |
502 |
|
|
public void testRemove() { |
503 |
dl |
1.3 |
PriorityBlockingQueue q = populatedQueue(SIZE); |
504 |
|
|
for (int i = 0; i < SIZE; ++i) { |
505 |
jsr166 |
1.24 |
assertEquals(i, q.remove()); |
506 |
dl |
1.1 |
} |
507 |
|
|
try { |
508 |
|
|
q.remove(); |
509 |
dl |
1.5 |
shouldThrow(); |
510 |
jsr166 |
1.15 |
} catch (NoSuchElementException success) {} |
511 |
dl |
1.1 |
} |
512 |
|
|
|
513 |
dl |
1.5 |
/** |
514 |
dl |
1.6 |
* remove(x) removes x and returns true if present |
515 |
dl |
1.5 |
*/ |
516 |
|
|
public void testRemoveElement() { |
517 |
dl |
1.3 |
PriorityBlockingQueue q = populatedQueue(SIZE); |
518 |
|
|
for (int i = 1; i < SIZE; i+=2) { |
519 |
dl |
1.1 |
assertTrue(q.remove(new Integer(i))); |
520 |
|
|
} |
521 |
dl |
1.3 |
for (int i = 0; i < SIZE; i+=2) { |
522 |
dl |
1.1 |
assertTrue(q.remove(new Integer(i))); |
523 |
|
|
assertFalse(q.remove(new Integer(i+1))); |
524 |
|
|
} |
525 |
dl |
1.2 |
assertTrue(q.isEmpty()); |
526 |
dl |
1.1 |
} |
527 |
jsr166 |
1.12 |
|
528 |
dl |
1.5 |
/** |
529 |
dl |
1.6 |
* contains(x) reports true when elements added but not yet removed |
530 |
dl |
1.5 |
*/ |
531 |
|
|
public void testContains() { |
532 |
dl |
1.3 |
PriorityBlockingQueue q = populatedQueue(SIZE); |
533 |
|
|
for (int i = 0; i < SIZE; ++i) { |
534 |
dl |
1.1 |
assertTrue(q.contains(new Integer(i))); |
535 |
|
|
q.poll(); |
536 |
|
|
assertFalse(q.contains(new Integer(i))); |
537 |
|
|
} |
538 |
|
|
} |
539 |
|
|
|
540 |
dl |
1.5 |
/** |
541 |
dl |
1.6 |
* clear removes all elements |
542 |
dl |
1.5 |
*/ |
543 |
|
|
public void testClear() { |
544 |
dl |
1.3 |
PriorityBlockingQueue q = populatedQueue(SIZE); |
545 |
dl |
1.1 |
q.clear(); |
546 |
|
|
assertTrue(q.isEmpty()); |
547 |
|
|
assertEquals(0, q.size()); |
548 |
dl |
1.11 |
q.add(one); |
549 |
dl |
1.1 |
assertFalse(q.isEmpty()); |
550 |
dl |
1.11 |
assertTrue(q.contains(one)); |
551 |
dl |
1.1 |
q.clear(); |
552 |
|
|
assertTrue(q.isEmpty()); |
553 |
|
|
} |
554 |
|
|
|
555 |
dl |
1.5 |
/** |
556 |
dl |
1.6 |
* containsAll(c) is true when c contains a subset of elements |
557 |
dl |
1.5 |
*/ |
558 |
|
|
public void testContainsAll() { |
559 |
dl |
1.3 |
PriorityBlockingQueue q = populatedQueue(SIZE); |
560 |
|
|
PriorityBlockingQueue p = new PriorityBlockingQueue(SIZE); |
561 |
|
|
for (int i = 0; i < SIZE; ++i) { |
562 |
dl |
1.1 |
assertTrue(q.containsAll(p)); |
563 |
|
|
assertFalse(p.containsAll(q)); |
564 |
|
|
p.add(new Integer(i)); |
565 |
|
|
} |
566 |
|
|
assertTrue(p.containsAll(q)); |
567 |
|
|
} |
568 |
|
|
|
569 |
dl |
1.5 |
/** |
570 |
dl |
1.6 |
* retainAll(c) retains only those elements of c and reports true if changed |
571 |
dl |
1.5 |
*/ |
572 |
|
|
public void testRetainAll() { |
573 |
dl |
1.3 |
PriorityBlockingQueue q = populatedQueue(SIZE); |
574 |
|
|
PriorityBlockingQueue p = populatedQueue(SIZE); |
575 |
|
|
for (int i = 0; i < SIZE; ++i) { |
576 |
dl |
1.1 |
boolean changed = q.retainAll(p); |
577 |
|
|
if (i == 0) |
578 |
|
|
assertFalse(changed); |
579 |
|
|
else |
580 |
|
|
assertTrue(changed); |
581 |
|
|
|
582 |
|
|
assertTrue(q.containsAll(p)); |
583 |
dl |
1.3 |
assertEquals(SIZE-i, q.size()); |
584 |
dl |
1.1 |
p.remove(); |
585 |
|
|
} |
586 |
|
|
} |
587 |
|
|
|
588 |
dl |
1.5 |
/** |
589 |
dl |
1.6 |
* removeAll(c) removes only those elements of c and reports true if changed |
590 |
dl |
1.5 |
*/ |
591 |
|
|
public void testRemoveAll() { |
592 |
dl |
1.3 |
for (int i = 1; i < SIZE; ++i) { |
593 |
|
|
PriorityBlockingQueue q = populatedQueue(SIZE); |
594 |
|
|
PriorityBlockingQueue p = populatedQueue(i); |
595 |
dl |
1.1 |
assertTrue(q.removeAll(p)); |
596 |
dl |
1.3 |
assertEquals(SIZE-i, q.size()); |
597 |
dl |
1.1 |
for (int j = 0; j < i; ++j) { |
598 |
|
|
Integer I = (Integer)(p.remove()); |
599 |
|
|
assertFalse(q.contains(I)); |
600 |
|
|
} |
601 |
|
|
} |
602 |
|
|
} |
603 |
|
|
|
604 |
dl |
1.5 |
/** |
605 |
dl |
1.6 |
* toArray contains all elements |
606 |
dl |
1.5 |
*/ |
607 |
jsr166 |
1.15 |
public void testToArray() throws InterruptedException { |
608 |
dl |
1.3 |
PriorityBlockingQueue q = populatedQueue(SIZE); |
609 |
jsr166 |
1.16 |
Object[] o = q.toArray(); |
610 |
dl |
1.1 |
Arrays.sort(o); |
611 |
jsr166 |
1.16 |
for (int i = 0; i < o.length; i++) |
612 |
|
|
assertEquals(o[i], q.take()); |
613 |
dl |
1.1 |
} |
614 |
|
|
|
615 |
dl |
1.5 |
/** |
616 |
dl |
1.6 |
* toArray(a) contains all elements |
617 |
dl |
1.5 |
*/ |
618 |
jsr166 |
1.15 |
public void testToArray2() throws InterruptedException { |
619 |
dl |
1.3 |
PriorityBlockingQueue q = populatedQueue(SIZE); |
620 |
jsr166 |
1.16 |
Integer[] ints = new Integer[SIZE]; |
621 |
|
|
ints = (Integer[])q.toArray(ints); |
622 |
dl |
1.1 |
Arrays.sort(ints); |
623 |
jsr166 |
1.15 |
for (int i = 0; i < ints.length; i++) |
624 |
|
|
assertEquals(ints[i], q.take()); |
625 |
dl |
1.1 |
} |
626 |
dl |
1.7 |
|
627 |
|
|
/** |
628 |
|
|
* toArray(null) throws NPE |
629 |
|
|
*/ |
630 |
|
|
public void testToArray_BadArg() { |
631 |
jsr166 |
1.24 |
PriorityBlockingQueue q = populatedQueue(SIZE); |
632 |
jsr166 |
1.16 |
try { |
633 |
|
|
Object o[] = q.toArray(null); |
634 |
|
|
shouldThrow(); |
635 |
|
|
} catch (NullPointerException success) {} |
636 |
dl |
1.7 |
} |
637 |
|
|
|
638 |
|
|
/** |
639 |
dl |
1.9 |
* toArray with incompatible array type throws CCE |
640 |
dl |
1.7 |
*/ |
641 |
|
|
public void testToArray1_BadArg() { |
642 |
jsr166 |
1.24 |
PriorityBlockingQueue q = populatedQueue(SIZE); |
643 |
jsr166 |
1.16 |
try { |
644 |
jsr166 |
1.24 |
Object o[] = q.toArray(new String[10]); |
645 |
jsr166 |
1.16 |
shouldThrow(); |
646 |
jsr166 |
1.19 |
} catch (ArrayStoreException success) {} |
647 |
dl |
1.7 |
} |
648 |
jsr166 |
1.12 |
|
649 |
dl |
1.5 |
/** |
650 |
dl |
1.6 |
* iterator iterates through all elements |
651 |
dl |
1.5 |
*/ |
652 |
|
|
public void testIterator() { |
653 |
dl |
1.3 |
PriorityBlockingQueue q = populatedQueue(SIZE); |
654 |
dl |
1.1 |
int i = 0; |
655 |
jsr166 |
1.16 |
Iterator it = q.iterator(); |
656 |
jsr166 |
1.13 |
while (it.hasNext()) { |
657 |
dl |
1.1 |
assertTrue(q.contains(it.next())); |
658 |
|
|
++i; |
659 |
|
|
} |
660 |
dl |
1.3 |
assertEquals(i, SIZE); |
661 |
dl |
1.1 |
} |
662 |
|
|
|
663 |
dl |
1.5 |
/** |
664 |
dl |
1.6 |
* iterator.remove removes current element |
665 |
dl |
1.5 |
*/ |
666 |
jsr166 |
1.26 |
public void testIteratorRemove() { |
667 |
dl |
1.1 |
final PriorityBlockingQueue q = new PriorityBlockingQueue(3); |
668 |
|
|
q.add(new Integer(2)); |
669 |
|
|
q.add(new Integer(1)); |
670 |
|
|
q.add(new Integer(3)); |
671 |
|
|
|
672 |
|
|
Iterator it = q.iterator(); |
673 |
|
|
it.next(); |
674 |
|
|
it.remove(); |
675 |
|
|
|
676 |
|
|
it = q.iterator(); |
677 |
|
|
assertEquals(it.next(), new Integer(2)); |
678 |
|
|
assertEquals(it.next(), new Integer(3)); |
679 |
|
|
assertFalse(it.hasNext()); |
680 |
|
|
} |
681 |
|
|
|
682 |
|
|
|
683 |
dl |
1.5 |
/** |
684 |
dl |
1.6 |
* toString contains toStrings of elements |
685 |
dl |
1.5 |
*/ |
686 |
|
|
public void testToString() { |
687 |
dl |
1.3 |
PriorityBlockingQueue q = populatedQueue(SIZE); |
688 |
dl |
1.1 |
String s = q.toString(); |
689 |
dl |
1.3 |
for (int i = 0; i < SIZE; ++i) { |
690 |
dl |
1.1 |
assertTrue(s.indexOf(String.valueOf(i)) >= 0); |
691 |
|
|
} |
692 |
jsr166 |
1.12 |
} |
693 |
dl |
1.1 |
|
694 |
dl |
1.5 |
/** |
695 |
dl |
1.6 |
* offer transfers elements across Executor tasks |
696 |
dl |
1.5 |
*/ |
697 |
dl |
1.1 |
public void testPollInExecutor() { |
698 |
|
|
final PriorityBlockingQueue q = new PriorityBlockingQueue(2); |
699 |
|
|
ExecutorService executor = Executors.newFixedThreadPool(2); |
700 |
jsr166 |
1.15 |
executor.execute(new CheckedRunnable() { |
701 |
|
|
public void realRun() throws InterruptedException { |
702 |
jsr166 |
1.25 |
assertNull(q.poll()); |
703 |
|
|
assertSame(one, q.poll(MEDIUM_DELAY_MS, MILLISECONDS)); |
704 |
|
|
assertTrue(q.isEmpty()); |
705 |
jsr166 |
1.15 |
}}); |
706 |
|
|
|
707 |
|
|
executor.execute(new CheckedRunnable() { |
708 |
|
|
public void realRun() throws InterruptedException { |
709 |
|
|
Thread.sleep(SMALL_DELAY_MS); |
710 |
jsr166 |
1.25 |
q.put(one); |
711 |
jsr166 |
1.15 |
}}); |
712 |
jsr166 |
1.12 |
|
713 |
dl |
1.3 |
joinPool(executor); |
714 |
dl |
1.2 |
} |
715 |
|
|
|
716 |
dl |
1.5 |
/** |
717 |
jsr166 |
1.12 |
* A deserialized serialized queue has same elements |
718 |
dl |
1.5 |
*/ |
719 |
jsr166 |
1.15 |
public void testSerialization() throws Exception { |
720 |
dl |
1.3 |
PriorityBlockingQueue q = populatedQueue(SIZE); |
721 |
jsr166 |
1.15 |
ByteArrayOutputStream bout = new ByteArrayOutputStream(10000); |
722 |
|
|
ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout)); |
723 |
|
|
out.writeObject(q); |
724 |
|
|
out.close(); |
725 |
|
|
|
726 |
|
|
ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray()); |
727 |
|
|
ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin)); |
728 |
|
|
PriorityBlockingQueue r = (PriorityBlockingQueue)in.readObject(); |
729 |
|
|
assertEquals(q.size(), r.size()); |
730 |
|
|
while (!q.isEmpty()) |
731 |
|
|
assertEquals(q.remove(), r.remove()); |
732 |
dl |
1.1 |
} |
733 |
dl |
1.7 |
|
734 |
|
|
/** |
735 |
|
|
* drainTo(null) throws NPE |
736 |
jsr166 |
1.12 |
*/ |
737 |
dl |
1.7 |
public void testDrainToNull() { |
738 |
|
|
PriorityBlockingQueue q = populatedQueue(SIZE); |
739 |
|
|
try { |
740 |
|
|
q.drainTo(null); |
741 |
|
|
shouldThrow(); |
742 |
jsr166 |
1.15 |
} catch (NullPointerException success) {} |
743 |
dl |
1.7 |
} |
744 |
|
|
|
745 |
|
|
/** |
746 |
|
|
* drainTo(this) throws IAE |
747 |
jsr166 |
1.12 |
*/ |
748 |
dl |
1.7 |
public void testDrainToSelf() { |
749 |
|
|
PriorityBlockingQueue q = populatedQueue(SIZE); |
750 |
|
|
try { |
751 |
|
|
q.drainTo(q); |
752 |
|
|
shouldThrow(); |
753 |
jsr166 |
1.15 |
} catch (IllegalArgumentException success) {} |
754 |
dl |
1.7 |
} |
755 |
|
|
|
756 |
|
|
/** |
757 |
|
|
* drainTo(c) empties queue into another collection c |
758 |
jsr166 |
1.12 |
*/ |
759 |
dl |
1.7 |
public void testDrainTo() { |
760 |
|
|
PriorityBlockingQueue q = populatedQueue(SIZE); |
761 |
|
|
ArrayList l = new ArrayList(); |
762 |
|
|
q.drainTo(l); |
763 |
|
|
assertEquals(q.size(), 0); |
764 |
|
|
assertEquals(l.size(), SIZE); |
765 |
jsr166 |
1.12 |
for (int i = 0; i < SIZE; ++i) |
766 |
dl |
1.7 |
assertEquals(l.get(i), new Integer(i)); |
767 |
dl |
1.11 |
q.add(zero); |
768 |
|
|
q.add(one); |
769 |
|
|
assertFalse(q.isEmpty()); |
770 |
|
|
assertTrue(q.contains(zero)); |
771 |
|
|
assertTrue(q.contains(one)); |
772 |
|
|
l.clear(); |
773 |
|
|
q.drainTo(l); |
774 |
|
|
assertEquals(q.size(), 0); |
775 |
|
|
assertEquals(l.size(), 2); |
776 |
jsr166 |
1.12 |
for (int i = 0; i < 2; ++i) |
777 |
dl |
1.11 |
assertEquals(l.get(i), new Integer(i)); |
778 |
dl |
1.7 |
} |
779 |
|
|
|
780 |
|
|
/** |
781 |
|
|
* drainTo empties queue |
782 |
jsr166 |
1.12 |
*/ |
783 |
jsr166 |
1.15 |
public void testDrainToWithActivePut() throws InterruptedException { |
784 |
dl |
1.7 |
final PriorityBlockingQueue q = populatedQueue(SIZE); |
785 |
jsr166 |
1.15 |
Thread t = new Thread(new CheckedRunnable() { |
786 |
|
|
public void realRun() { |
787 |
|
|
q.put(new Integer(SIZE+1)); |
788 |
|
|
}}); |
789 |
|
|
|
790 |
|
|
t.start(); |
791 |
|
|
ArrayList l = new ArrayList(); |
792 |
|
|
q.drainTo(l); |
793 |
|
|
assertTrue(l.size() >= SIZE); |
794 |
|
|
for (int i = 0; i < SIZE; ++i) |
795 |
|
|
assertEquals(l.get(i), new Integer(i)); |
796 |
|
|
t.join(); |
797 |
|
|
assertTrue(q.size() + l.size() >= SIZE); |
798 |
dl |
1.7 |
} |
799 |
|
|
|
800 |
|
|
/** |
801 |
|
|
* drainTo(null, n) throws NPE |
802 |
jsr166 |
1.12 |
*/ |
803 |
dl |
1.7 |
public void testDrainToNullN() { |
804 |
|
|
PriorityBlockingQueue q = populatedQueue(SIZE); |
805 |
|
|
try { |
806 |
|
|
q.drainTo(null, 0); |
807 |
|
|
shouldThrow(); |
808 |
jsr166 |
1.15 |
} catch (NullPointerException success) {} |
809 |
dl |
1.7 |
} |
810 |
|
|
|
811 |
|
|
/** |
812 |
|
|
* drainTo(this, n) throws IAE |
813 |
jsr166 |
1.12 |
*/ |
814 |
dl |
1.7 |
public void testDrainToSelfN() { |
815 |
|
|
PriorityBlockingQueue q = populatedQueue(SIZE); |
816 |
|
|
try { |
817 |
|
|
q.drainTo(q, 0); |
818 |
|
|
shouldThrow(); |
819 |
jsr166 |
1.15 |
} catch (IllegalArgumentException success) {} |
820 |
dl |
1.7 |
} |
821 |
|
|
|
822 |
|
|
/** |
823 |
|
|
* drainTo(c, n) empties first max {n, size} elements of queue into c |
824 |
jsr166 |
1.12 |
*/ |
825 |
dl |
1.7 |
public void testDrainToN() { |
826 |
dl |
1.11 |
PriorityBlockingQueue q = new PriorityBlockingQueue(SIZE*2); |
827 |
dl |
1.7 |
for (int i = 0; i < SIZE + 2; ++i) { |
828 |
jsr166 |
1.13 |
for (int j = 0; j < SIZE; j++) |
829 |
dl |
1.11 |
assertTrue(q.offer(new Integer(j))); |
830 |
dl |
1.7 |
ArrayList l = new ArrayList(); |
831 |
|
|
q.drainTo(l, i); |
832 |
|
|
int k = (i < SIZE)? i : SIZE; |
833 |
dl |
1.11 |
assertEquals(l.size(), k); |
834 |
dl |
1.7 |
assertEquals(q.size(), SIZE-k); |
835 |
jsr166 |
1.12 |
for (int j = 0; j < k; ++j) |
836 |
dl |
1.11 |
assertEquals(l.get(j), new Integer(j)); |
837 |
|
|
while (q.poll() != null) ; |
838 |
dl |
1.7 |
} |
839 |
|
|
} |
840 |
|
|
|
841 |
dl |
1.1 |
} |