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 |
1.16 |
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 |
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int i = ((Integer)x).intValue(); |
29 |
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int j = ((Integer)y).intValue(); |
30 |
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if (i < j) return 1; |
31 |
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if (i > j) return -1; |
32 |
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return 0; |
33 |
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} |
34 |
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} |
35 |
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36 |
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/** |
37 |
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* Create a queue of given size containing consecutive |
38 |
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* Integers 0 ... n. |
39 |
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*/ |
40 |
dl |
1.3 |
private PriorityBlockingQueue populatedQueue(int n) { |
41 |
dl |
1.1 |
PriorityBlockingQueue q = new PriorityBlockingQueue(n); |
42 |
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assertTrue(q.isEmpty()); |
43 |
jsr166 |
1.16 |
for (int i = n-1; i >= 0; i-=2) |
44 |
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assertTrue(q.offer(new Integer(i))); |
45 |
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for (int i = (n & 1); i < n; i+=2) |
46 |
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assertTrue(q.offer(new Integer(i))); |
47 |
dl |
1.1 |
assertFalse(q.isEmpty()); |
48 |
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assertEquals(NOCAP, q.remainingCapacity()); |
49 |
jsr166 |
1.16 |
assertEquals(n, q.size()); |
50 |
dl |
1.1 |
return q; |
51 |
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} |
52 |
jsr166 |
1.12 |
|
53 |
dl |
1.5 |
/** |
54 |
dl |
1.6 |
* A new queue has unbounded capacity |
55 |
dl |
1.5 |
*/ |
56 |
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public void testConstructor1() { |
57 |
dl |
1.3 |
assertEquals(NOCAP, new PriorityBlockingQueue(SIZE).remainingCapacity()); |
58 |
dl |
1.1 |
} |
59 |
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|
60 |
dl |
1.5 |
/** |
61 |
jsr166 |
1.19 |
* Constructor throws IAE if capacity argument nonpositive |
62 |
dl |
1.5 |
*/ |
63 |
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public void testConstructor2() { |
64 |
dl |
1.1 |
try { |
65 |
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PriorityBlockingQueue q = new PriorityBlockingQueue(0); |
66 |
dl |
1.5 |
shouldThrow(); |
67 |
jsr166 |
1.15 |
} catch (IllegalArgumentException success) {} |
68 |
dl |
1.1 |
} |
69 |
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|
70 |
dl |
1.5 |
/** |
71 |
dl |
1.6 |
* Initializing from null Collection throws NPE |
72 |
dl |
1.5 |
*/ |
73 |
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public void testConstructor3() { |
74 |
dl |
1.1 |
try { |
75 |
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PriorityBlockingQueue q = new PriorityBlockingQueue(null); |
76 |
dl |
1.5 |
shouldThrow(); |
77 |
jsr166 |
1.15 |
} catch (NullPointerException success) {} |
78 |
dl |
1.1 |
} |
79 |
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|
80 |
dl |
1.5 |
/** |
81 |
dl |
1.6 |
* Initializing from Collection of null elements throws NPE |
82 |
dl |
1.5 |
*/ |
83 |
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public void testConstructor4() { |
84 |
dl |
1.1 |
try { |
85 |
dl |
1.3 |
Integer[] ints = new Integer[SIZE]; |
86 |
dl |
1.1 |
PriorityBlockingQueue q = new PriorityBlockingQueue(Arrays.asList(ints)); |
87 |
dl |
1.5 |
shouldThrow(); |
88 |
jsr166 |
1.15 |
} catch (NullPointerException success) {} |
89 |
dl |
1.1 |
} |
90 |
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91 |
dl |
1.5 |
/** |
92 |
dl |
1.6 |
* Initializing from Collection with some null elements throws NPE |
93 |
dl |
1.5 |
*/ |
94 |
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public void testConstructor5() { |
95 |
dl |
1.1 |
try { |
96 |
dl |
1.3 |
Integer[] ints = new Integer[SIZE]; |
97 |
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for (int i = 0; i < SIZE-1; ++i) |
98 |
dl |
1.1 |
ints[i] = new Integer(i); |
99 |
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PriorityBlockingQueue q = new PriorityBlockingQueue(Arrays.asList(ints)); |
100 |
dl |
1.5 |
shouldThrow(); |
101 |
jsr166 |
1.15 |
} catch (NullPointerException success) {} |
102 |
dl |
1.1 |
} |
103 |
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104 |
dl |
1.5 |
/** |
105 |
dl |
1.6 |
* Queue contains all elements of collection used to initialize |
106 |
dl |
1.5 |
*/ |
107 |
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public void testConstructor6() { |
108 |
jsr166 |
1.15 |
Integer[] ints = new Integer[SIZE]; |
109 |
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for (int i = 0; i < SIZE; ++i) |
110 |
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ints[i] = new Integer(i); |
111 |
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PriorityBlockingQueue q = new PriorityBlockingQueue(Arrays.asList(ints)); |
112 |
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for (int i = 0; i < SIZE; ++i) |
113 |
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assertEquals(ints[i], q.poll()); |
114 |
dl |
1.1 |
} |
115 |
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116 |
dl |
1.5 |
/** |
117 |
dl |
1.6 |
* The comparator used in constructor is used |
118 |
dl |
1.5 |
*/ |
119 |
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public void testConstructor7() { |
120 |
jsr166 |
1.15 |
MyReverseComparator cmp = new MyReverseComparator(); |
121 |
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PriorityBlockingQueue q = new PriorityBlockingQueue(SIZE, cmp); |
122 |
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assertEquals(cmp, q.comparator()); |
123 |
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Integer[] ints = new Integer[SIZE]; |
124 |
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for (int i = 0; i < SIZE; ++i) |
125 |
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ints[i] = new Integer(i); |
126 |
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q.addAll(Arrays.asList(ints)); |
127 |
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for (int i = SIZE-1; i >= 0; --i) |
128 |
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assertEquals(ints[i], q.poll()); |
129 |
dl |
1.1 |
} |
130 |
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131 |
dl |
1.5 |
/** |
132 |
dl |
1.6 |
* isEmpty is true before add, false after |
133 |
dl |
1.5 |
*/ |
134 |
dl |
1.1 |
public void testEmpty() { |
135 |
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PriorityBlockingQueue q = new PriorityBlockingQueue(2); |
136 |
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assertTrue(q.isEmpty()); |
137 |
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assertEquals(NOCAP, q.remainingCapacity()); |
138 |
dl |
1.6 |
q.add(one); |
139 |
dl |
1.1 |
assertFalse(q.isEmpty()); |
140 |
dl |
1.6 |
q.add(two); |
141 |
dl |
1.1 |
q.remove(); |
142 |
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q.remove(); |
143 |
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assertTrue(q.isEmpty()); |
144 |
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} |
145 |
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|
146 |
dl |
1.5 |
/** |
147 |
dl |
1.9 |
* remainingCapacity does not change when elements added or removed, |
148 |
dl |
1.6 |
* but size does |
149 |
dl |
1.5 |
*/ |
150 |
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public void testRemainingCapacity() { |
151 |
dl |
1.3 |
PriorityBlockingQueue q = populatedQueue(SIZE); |
152 |
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for (int i = 0; i < SIZE; ++i) { |
153 |
dl |
1.1 |
assertEquals(NOCAP, q.remainingCapacity()); |
154 |
dl |
1.3 |
assertEquals(SIZE-i, q.size()); |
155 |
dl |
1.1 |
q.remove(); |
156 |
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} |
157 |
dl |
1.3 |
for (int i = 0; i < SIZE; ++i) { |
158 |
dl |
1.1 |
assertEquals(NOCAP, q.remainingCapacity()); |
159 |
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assertEquals(i, q.size()); |
160 |
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q.add(new Integer(i)); |
161 |
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} |
162 |
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} |
163 |
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|
164 |
dl |
1.5 |
/** |
165 |
dl |
1.6 |
* offer(null) throws NPE |
166 |
dl |
1.5 |
*/ |
167 |
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public void testOfferNull() { |
168 |
jsr166 |
1.16 |
try { |
169 |
dl |
1.1 |
PriorityBlockingQueue q = new PriorityBlockingQueue(1); |
170 |
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q.offer(null); |
171 |
dl |
1.5 |
shouldThrow(); |
172 |
jsr166 |
1.15 |
} catch (NullPointerException success) {} |
173 |
dl |
1.1 |
} |
174 |
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|
175 |
dl |
1.5 |
/** |
176 |
dl |
1.7 |
* add(null) throws NPE |
177 |
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*/ |
178 |
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public void testAddNull() { |
179 |
jsr166 |
1.16 |
try { |
180 |
dl |
1.7 |
PriorityBlockingQueue q = new PriorityBlockingQueue(1); |
181 |
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q.add(null); |
182 |
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shouldThrow(); |
183 |
jsr166 |
1.15 |
} catch (NullPointerException success) {} |
184 |
dl |
1.7 |
} |
185 |
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|
186 |
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/** |
187 |
dl |
1.6 |
* Offer of comparable element succeeds |
188 |
dl |
1.5 |
*/ |
189 |
dl |
1.1 |
public void testOffer() { |
190 |
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PriorityBlockingQueue q = new PriorityBlockingQueue(1); |
191 |
dl |
1.6 |
assertTrue(q.offer(zero)); |
192 |
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assertTrue(q.offer(one)); |
193 |
dl |
1.1 |
} |
194 |
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|
195 |
dl |
1.5 |
/** |
196 |
dl |
1.6 |
* Offer of non-Comparable throws CCE |
197 |
dl |
1.5 |
*/ |
198 |
dl |
1.1 |
public void testOfferNonComparable() { |
199 |
|
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try { |
200 |
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PriorityBlockingQueue q = new PriorityBlockingQueue(1); |
201 |
|
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q.offer(new Object()); |
202 |
|
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q.offer(new Object()); |
203 |
|
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q.offer(new Object()); |
204 |
dl |
1.5 |
shouldThrow(); |
205 |
jsr166 |
1.15 |
} catch (ClassCastException success) {} |
206 |
dl |
1.1 |
} |
207 |
|
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|
208 |
dl |
1.5 |
/** |
209 |
dl |
1.6 |
* add of comparable succeeds |
210 |
dl |
1.5 |
*/ |
211 |
|
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public void testAdd() { |
212 |
dl |
1.3 |
PriorityBlockingQueue q = new PriorityBlockingQueue(SIZE); |
213 |
|
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for (int i = 0; i < SIZE; ++i) { |
214 |
dl |
1.1 |
assertEquals(i, q.size()); |
215 |
|
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assertTrue(q.add(new Integer(i))); |
216 |
|
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} |
217 |
|
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} |
218 |
|
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|
219 |
dl |
1.5 |
/** |
220 |
dl |
1.6 |
* addAll(null) throws NPE |
221 |
dl |
1.5 |
*/ |
222 |
|
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public void testAddAll1() { |
223 |
dl |
1.1 |
try { |
224 |
|
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PriorityBlockingQueue q = new PriorityBlockingQueue(1); |
225 |
|
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q.addAll(null); |
226 |
dl |
1.5 |
shouldThrow(); |
227 |
jsr166 |
1.15 |
} catch (NullPointerException success) {} |
228 |
dl |
1.1 |
} |
229 |
dl |
1.7 |
|
230 |
|
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/** |
231 |
|
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* addAll(this) throws IAE |
232 |
|
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*/ |
233 |
|
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public void testAddAllSelf() { |
234 |
|
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try { |
235 |
|
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PriorityBlockingQueue q = populatedQueue(SIZE); |
236 |
|
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q.addAll(q); |
237 |
|
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shouldThrow(); |
238 |
jsr166 |
1.15 |
} catch (IllegalArgumentException success) {} |
239 |
dl |
1.7 |
} |
240 |
|
|
|
241 |
dl |
1.5 |
/** |
242 |
dl |
1.6 |
* addAll of a collection with null elements throws NPE |
243 |
dl |
1.5 |
*/ |
244 |
|
|
public void testAddAll2() { |
245 |
dl |
1.1 |
try { |
246 |
dl |
1.3 |
PriorityBlockingQueue q = new PriorityBlockingQueue(SIZE); |
247 |
|
|
Integer[] ints = new Integer[SIZE]; |
248 |
dl |
1.1 |
q.addAll(Arrays.asList(ints)); |
249 |
dl |
1.5 |
shouldThrow(); |
250 |
jsr166 |
1.15 |
} catch (NullPointerException success) {} |
251 |
dl |
1.1 |
} |
252 |
dl |
1.5 |
/** |
253 |
dl |
1.6 |
* addAll of a collection with any null elements throws NPE after |
254 |
|
|
* possibly adding some elements |
255 |
dl |
1.5 |
*/ |
256 |
|
|
public void testAddAll3() { |
257 |
dl |
1.1 |
try { |
258 |
dl |
1.3 |
PriorityBlockingQueue q = new PriorityBlockingQueue(SIZE); |
259 |
|
|
Integer[] ints = new Integer[SIZE]; |
260 |
|
|
for (int i = 0; i < SIZE-1; ++i) |
261 |
dl |
1.1 |
ints[i] = new Integer(i); |
262 |
|
|
q.addAll(Arrays.asList(ints)); |
263 |
dl |
1.5 |
shouldThrow(); |
264 |
jsr166 |
1.15 |
} catch (NullPointerException success) {} |
265 |
dl |
1.1 |
} |
266 |
|
|
|
267 |
dl |
1.5 |
/** |
268 |
dl |
1.6 |
* Queue contains all elements of successful addAll |
269 |
dl |
1.5 |
*/ |
270 |
|
|
public void testAddAll5() { |
271 |
jsr166 |
1.15 |
Integer[] empty = new Integer[0]; |
272 |
|
|
Integer[] ints = new Integer[SIZE]; |
273 |
|
|
for (int i = SIZE-1; i >= 0; --i) |
274 |
|
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ints[i] = new Integer(i); |
275 |
|
|
PriorityBlockingQueue q = new PriorityBlockingQueue(SIZE); |
276 |
|
|
assertFalse(q.addAll(Arrays.asList(empty))); |
277 |
|
|
assertTrue(q.addAll(Arrays.asList(ints))); |
278 |
|
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for (int i = 0; i < SIZE; ++i) |
279 |
|
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assertEquals(ints[i], q.poll()); |
280 |
dl |
1.1 |
} |
281 |
|
|
|
282 |
dl |
1.5 |
/** |
283 |
dl |
1.6 |
* put(null) throws NPE |
284 |
dl |
1.5 |
*/ |
285 |
dl |
1.1 |
public void testPutNull() { |
286 |
jsr166 |
1.16 |
try { |
287 |
dl |
1.3 |
PriorityBlockingQueue q = new PriorityBlockingQueue(SIZE); |
288 |
dl |
1.1 |
q.put(null); |
289 |
dl |
1.5 |
shouldThrow(); |
290 |
jsr166 |
1.15 |
} catch (NullPointerException success) {} |
291 |
dl |
1.1 |
} |
292 |
|
|
|
293 |
dl |
1.5 |
/** |
294 |
dl |
1.6 |
* all elements successfully put are contained |
295 |
dl |
1.5 |
*/ |
296 |
dl |
1.1 |
public void testPut() { |
297 |
jsr166 |
1.15 |
PriorityBlockingQueue q = new PriorityBlockingQueue(SIZE); |
298 |
|
|
for (int i = 0; i < SIZE; ++i) { |
299 |
|
|
Integer I = new Integer(i); |
300 |
|
|
q.put(I); |
301 |
|
|
assertTrue(q.contains(I)); |
302 |
dl |
1.1 |
} |
303 |
jsr166 |
1.15 |
assertEquals(SIZE, q.size()); |
304 |
dl |
1.1 |
} |
305 |
|
|
|
306 |
dl |
1.5 |
/** |
307 |
dl |
1.6 |
* put doesn't block waiting for take |
308 |
dl |
1.5 |
*/ |
309 |
jsr166 |
1.15 |
public void testPutWithTake() throws InterruptedException { |
310 |
dl |
1.1 |
final PriorityBlockingQueue q = new PriorityBlockingQueue(2); |
311 |
jsr166 |
1.15 |
final int size = 4; |
312 |
|
|
Thread t = new Thread(new CheckedRunnable() { |
313 |
|
|
public void realRun() { |
314 |
|
|
for (int i = 0; i < size; i++) |
315 |
|
|
q.put(new Integer(0)); |
316 |
|
|
}}); |
317 |
|
|
|
318 |
|
|
t.start(); |
319 |
|
|
Thread.sleep(SHORT_DELAY_MS); |
320 |
|
|
assertEquals(q.size(), size); |
321 |
|
|
q.take(); |
322 |
|
|
t.interrupt(); |
323 |
|
|
t.join(); |
324 |
dl |
1.1 |
} |
325 |
|
|
|
326 |
dl |
1.5 |
/** |
327 |
dl |
1.6 |
* timed offer does not time out |
328 |
dl |
1.5 |
*/ |
329 |
jsr166 |
1.15 |
public void testTimedOffer() throws InterruptedException { |
330 |
dl |
1.1 |
final PriorityBlockingQueue q = new PriorityBlockingQueue(2); |
331 |
jsr166 |
1.18 |
Thread t = new Thread(new CheckedRunnable() { |
332 |
|
|
public void realRun() { |
333 |
|
|
q.put(new Integer(0)); |
334 |
|
|
q.put(new Integer(0)); |
335 |
jsr166 |
1.22 |
assertTrue(q.offer(new Integer(0), SHORT_DELAY_MS, MILLISECONDS)); |
336 |
|
|
assertTrue(q.offer(new Integer(0), LONG_DELAY_MS, MILLISECONDS)); |
337 |
jsr166 |
1.18 |
}}); |
338 |
jsr166 |
1.12 |
|
339 |
jsr166 |
1.15 |
t.start(); |
340 |
|
|
Thread.sleep(SMALL_DELAY_MS); |
341 |
|
|
t.interrupt(); |
342 |
|
|
t.join(); |
343 |
dl |
1.1 |
} |
344 |
|
|
|
345 |
dl |
1.5 |
/** |
346 |
dl |
1.6 |
* take retrieves elements in priority order |
347 |
dl |
1.5 |
*/ |
348 |
jsr166 |
1.15 |
public void testTake() throws InterruptedException { |
349 |
|
|
PriorityBlockingQueue q = populatedQueue(SIZE); |
350 |
|
|
for (int i = 0; i < SIZE; ++i) { |
351 |
|
|
assertEquals(i, ((Integer)q.take()).intValue()); |
352 |
|
|
} |
353 |
dl |
1.1 |
} |
354 |
|
|
|
355 |
dl |
1.5 |
/** |
356 |
dl |
1.6 |
* take blocks interruptibly when empty |
357 |
dl |
1.5 |
*/ |
358 |
jsr166 |
1.15 |
public void testTakeFromEmpty() throws InterruptedException { |
359 |
dl |
1.1 |
final PriorityBlockingQueue q = new PriorityBlockingQueue(2); |
360 |
jsr166 |
1.15 |
Thread t = new Thread(new CheckedInterruptedRunnable() { |
361 |
|
|
public void realRun() throws InterruptedException { |
362 |
|
|
q.take(); |
363 |
|
|
}}); |
364 |
|
|
|
365 |
|
|
t.start(); |
366 |
|
|
Thread.sleep(SHORT_DELAY_MS); |
367 |
|
|
t.interrupt(); |
368 |
|
|
t.join(); |
369 |
dl |
1.1 |
} |
370 |
|
|
|
371 |
dl |
1.5 |
/** |
372 |
dl |
1.6 |
* Take removes existing elements until empty, then blocks interruptibly |
373 |
dl |
1.5 |
*/ |
374 |
jsr166 |
1.15 |
public void testBlockingTake() throws InterruptedException { |
375 |
jsr166 |
1.23 |
final PriorityBlockingQueue q = populatedQueue(SIZE); |
376 |
|
|
Thread t = new Thread(new CheckedRunnable() { |
377 |
jsr166 |
1.15 |
public void realRun() throws InterruptedException { |
378 |
|
|
for (int i = 0; i < SIZE; ++i) { |
379 |
jsr166 |
1.23 |
assertEquals(i, q.take()); |
380 |
jsr166 |
1.15 |
} |
381 |
jsr166 |
1.23 |
try { |
382 |
|
|
q.take(); |
383 |
|
|
shouldThrow(); |
384 |
|
|
} catch (InterruptedException success) {} |
385 |
jsr166 |
1.15 |
}}); |
386 |
|
|
|
387 |
dl |
1.1 |
t.start(); |
388 |
jsr166 |
1.15 |
Thread.sleep(SHORT_DELAY_MS); |
389 |
|
|
t.interrupt(); |
390 |
|
|
t.join(); |
391 |
dl |
1.1 |
} |
392 |
|
|
|
393 |
|
|
|
394 |
dl |
1.5 |
/** |
395 |
dl |
1.6 |
* poll succeeds unless empty |
396 |
dl |
1.5 |
*/ |
397 |
|
|
public void testPoll() { |
398 |
dl |
1.3 |
PriorityBlockingQueue q = populatedQueue(SIZE); |
399 |
|
|
for (int i = 0; i < SIZE; ++i) { |
400 |
dl |
1.1 |
assertEquals(i, ((Integer)q.poll()).intValue()); |
401 |
|
|
} |
402 |
jsr166 |
1.16 |
assertNull(q.poll()); |
403 |
dl |
1.1 |
} |
404 |
|
|
|
405 |
dl |
1.5 |
/** |
406 |
dl |
1.6 |
* timed pool with zero timeout succeeds when non-empty, else times out |
407 |
dl |
1.5 |
*/ |
408 |
jsr166 |
1.15 |
public void testTimedPoll0() throws InterruptedException { |
409 |
|
|
PriorityBlockingQueue q = populatedQueue(SIZE); |
410 |
|
|
for (int i = 0; i < SIZE; ++i) { |
411 |
jsr166 |
1.17 |
assertEquals(i, ((Integer)q.poll(0, MILLISECONDS)).intValue()); |
412 |
jsr166 |
1.15 |
} |
413 |
jsr166 |
1.17 |
assertNull(q.poll(0, MILLISECONDS)); |
414 |
dl |
1.1 |
} |
415 |
|
|
|
416 |
dl |
1.5 |
/** |
417 |
dl |
1.6 |
* timed pool with nonzero timeout succeeds when non-empty, else times out |
418 |
dl |
1.5 |
*/ |
419 |
jsr166 |
1.15 |
public void testTimedPoll() throws InterruptedException { |
420 |
|
|
PriorityBlockingQueue q = populatedQueue(SIZE); |
421 |
|
|
for (int i = 0; i < SIZE; ++i) { |
422 |
jsr166 |
1.17 |
assertEquals(i, ((Integer)q.poll(SHORT_DELAY_MS, MILLISECONDS)).intValue()); |
423 |
jsr166 |
1.15 |
} |
424 |
jsr166 |
1.17 |
assertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS)); |
425 |
dl |
1.1 |
} |
426 |
|
|
|
427 |
dl |
1.5 |
/** |
428 |
dl |
1.6 |
* Interrupted timed poll throws InterruptedException instead of |
429 |
|
|
* returning timeout status |
430 |
dl |
1.5 |
*/ |
431 |
jsr166 |
1.15 |
public void testInterruptedTimedPoll() throws InterruptedException { |
432 |
|
|
Thread t = new Thread(new CheckedRunnable() { |
433 |
|
|
public void realRun() throws InterruptedException { |
434 |
|
|
PriorityBlockingQueue q = populatedQueue(SIZE); |
435 |
|
|
for (int i = 0; i < SIZE; ++i) { |
436 |
jsr166 |
1.18 |
assertEquals(i, ((Integer)q.poll(SHORT_DELAY_MS, MILLISECONDS)).intValue()); |
437 |
jsr166 |
1.15 |
} |
438 |
|
|
try { |
439 |
jsr166 |
1.20 |
q.poll(SMALL_DELAY_MS, MILLISECONDS); |
440 |
jsr166 |
1.18 |
shouldThrow(); |
441 |
jsr166 |
1.15 |
} catch (InterruptedException success) {} |
442 |
|
|
}}); |
443 |
|
|
|
444 |
dl |
1.1 |
t.start(); |
445 |
jsr166 |
1.15 |
Thread.sleep(SHORT_DELAY_MS); |
446 |
|
|
t.interrupt(); |
447 |
|
|
t.join(); |
448 |
dl |
1.1 |
} |
449 |
|
|
|
450 |
dl |
1.5 |
/** |
451 |
dl |
1.6 |
* timed poll before a delayed offer fails; after offer succeeds; |
452 |
|
|
* on interruption throws |
453 |
dl |
1.5 |
*/ |
454 |
jsr166 |
1.15 |
public void testTimedPollWithOffer() throws InterruptedException { |
455 |
dl |
1.1 |
final PriorityBlockingQueue q = new PriorityBlockingQueue(2); |
456 |
jsr166 |
1.15 |
Thread t = new Thread(new CheckedRunnable() { |
457 |
|
|
public void realRun() throws InterruptedException { |
458 |
jsr166 |
1.18 |
assertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS)); |
459 |
jsr166 |
1.21 |
assertSame(zero, q.poll(MEDIUM_DELAY_MS, MILLISECONDS)); |
460 |
jsr166 |
1.15 |
try { |
461 |
jsr166 |
1.17 |
q.poll(LONG_DELAY_MS, MILLISECONDS); |
462 |
jsr166 |
1.21 |
shouldThrow(); |
463 |
jsr166 |
1.15 |
} catch (InterruptedException success) {} |
464 |
|
|
}}); |
465 |
|
|
|
466 |
|
|
t.start(); |
467 |
|
|
Thread.sleep(SMALL_DELAY_MS); |
468 |
jsr166 |
1.21 |
assertTrue(q.offer(zero, SHORT_DELAY_MS, MILLISECONDS)); |
469 |
jsr166 |
1.15 |
t.interrupt(); |
470 |
|
|
t.join(); |
471 |
jsr166 |
1.12 |
} |
472 |
dl |
1.1 |
|
473 |
|
|
|
474 |
dl |
1.5 |
/** |
475 |
dl |
1.6 |
* peek returns next element, or null if empty |
476 |
dl |
1.5 |
*/ |
477 |
|
|
public void testPeek() { |
478 |
dl |
1.3 |
PriorityBlockingQueue q = populatedQueue(SIZE); |
479 |
|
|
for (int i = 0; i < SIZE; ++i) { |
480 |
dl |
1.1 |
assertEquals(i, ((Integer)q.peek()).intValue()); |
481 |
|
|
q.poll(); |
482 |
|
|
assertTrue(q.peek() == null || |
483 |
|
|
i != ((Integer)q.peek()).intValue()); |
484 |
|
|
} |
485 |
jsr166 |
1.16 |
assertNull(q.peek()); |
486 |
dl |
1.1 |
} |
487 |
|
|
|
488 |
dl |
1.5 |
/** |
489 |
dl |
1.6 |
* element returns next element, or throws NSEE if empty |
490 |
dl |
1.5 |
*/ |
491 |
|
|
public void testElement() { |
492 |
dl |
1.3 |
PriorityBlockingQueue q = populatedQueue(SIZE); |
493 |
|
|
for (int i = 0; i < SIZE; ++i) { |
494 |
dl |
1.1 |
assertEquals(i, ((Integer)q.element()).intValue()); |
495 |
|
|
q.poll(); |
496 |
|
|
} |
497 |
|
|
try { |
498 |
|
|
q.element(); |
499 |
dl |
1.5 |
shouldThrow(); |
500 |
jsr166 |
1.15 |
} catch (NoSuchElementException success) {} |
501 |
dl |
1.1 |
} |
502 |
|
|
|
503 |
dl |
1.5 |
/** |
504 |
dl |
1.6 |
* remove removes next element, or throws NSEE if empty |
505 |
dl |
1.5 |
*/ |
506 |
|
|
public void testRemove() { |
507 |
dl |
1.3 |
PriorityBlockingQueue q = populatedQueue(SIZE); |
508 |
|
|
for (int i = 0; i < SIZE; ++i) { |
509 |
dl |
1.1 |
assertEquals(i, ((Integer)q.remove()).intValue()); |
510 |
|
|
} |
511 |
|
|
try { |
512 |
|
|
q.remove(); |
513 |
dl |
1.5 |
shouldThrow(); |
514 |
jsr166 |
1.15 |
} catch (NoSuchElementException success) {} |
515 |
dl |
1.1 |
} |
516 |
|
|
|
517 |
dl |
1.5 |
/** |
518 |
dl |
1.6 |
* remove(x) removes x and returns true if present |
519 |
dl |
1.5 |
*/ |
520 |
|
|
public void testRemoveElement() { |
521 |
dl |
1.3 |
PriorityBlockingQueue q = populatedQueue(SIZE); |
522 |
|
|
for (int i = 1; i < SIZE; i+=2) { |
523 |
dl |
1.1 |
assertTrue(q.remove(new Integer(i))); |
524 |
|
|
} |
525 |
dl |
1.3 |
for (int i = 0; i < SIZE; i+=2) { |
526 |
dl |
1.1 |
assertTrue(q.remove(new Integer(i))); |
527 |
|
|
assertFalse(q.remove(new Integer(i+1))); |
528 |
|
|
} |
529 |
dl |
1.2 |
assertTrue(q.isEmpty()); |
530 |
dl |
1.1 |
} |
531 |
jsr166 |
1.12 |
|
532 |
dl |
1.5 |
/** |
533 |
dl |
1.6 |
* contains(x) reports true when elements added but not yet removed |
534 |
dl |
1.5 |
*/ |
535 |
|
|
public void testContains() { |
536 |
dl |
1.3 |
PriorityBlockingQueue q = populatedQueue(SIZE); |
537 |
|
|
for (int i = 0; i < SIZE; ++i) { |
538 |
dl |
1.1 |
assertTrue(q.contains(new Integer(i))); |
539 |
|
|
q.poll(); |
540 |
|
|
assertFalse(q.contains(new Integer(i))); |
541 |
|
|
} |
542 |
|
|
} |
543 |
|
|
|
544 |
dl |
1.5 |
/** |
545 |
dl |
1.6 |
* clear removes all elements |
546 |
dl |
1.5 |
*/ |
547 |
|
|
public void testClear() { |
548 |
dl |
1.3 |
PriorityBlockingQueue q = populatedQueue(SIZE); |
549 |
dl |
1.1 |
q.clear(); |
550 |
|
|
assertTrue(q.isEmpty()); |
551 |
|
|
assertEquals(0, q.size()); |
552 |
dl |
1.11 |
q.add(one); |
553 |
dl |
1.1 |
assertFalse(q.isEmpty()); |
554 |
dl |
1.11 |
assertTrue(q.contains(one)); |
555 |
dl |
1.1 |
q.clear(); |
556 |
|
|
assertTrue(q.isEmpty()); |
557 |
|
|
} |
558 |
|
|
|
559 |
dl |
1.5 |
/** |
560 |
dl |
1.6 |
* containsAll(c) is true when c contains a subset of elements |
561 |
dl |
1.5 |
*/ |
562 |
|
|
public void testContainsAll() { |
563 |
dl |
1.3 |
PriorityBlockingQueue q = populatedQueue(SIZE); |
564 |
|
|
PriorityBlockingQueue p = new PriorityBlockingQueue(SIZE); |
565 |
|
|
for (int i = 0; i < SIZE; ++i) { |
566 |
dl |
1.1 |
assertTrue(q.containsAll(p)); |
567 |
|
|
assertFalse(p.containsAll(q)); |
568 |
|
|
p.add(new Integer(i)); |
569 |
|
|
} |
570 |
|
|
assertTrue(p.containsAll(q)); |
571 |
|
|
} |
572 |
|
|
|
573 |
dl |
1.5 |
/** |
574 |
dl |
1.6 |
* retainAll(c) retains only those elements of c and reports true if changed |
575 |
dl |
1.5 |
*/ |
576 |
|
|
public void testRetainAll() { |
577 |
dl |
1.3 |
PriorityBlockingQueue q = populatedQueue(SIZE); |
578 |
|
|
PriorityBlockingQueue p = populatedQueue(SIZE); |
579 |
|
|
for (int i = 0; i < SIZE; ++i) { |
580 |
dl |
1.1 |
boolean changed = q.retainAll(p); |
581 |
|
|
if (i == 0) |
582 |
|
|
assertFalse(changed); |
583 |
|
|
else |
584 |
|
|
assertTrue(changed); |
585 |
|
|
|
586 |
|
|
assertTrue(q.containsAll(p)); |
587 |
dl |
1.3 |
assertEquals(SIZE-i, q.size()); |
588 |
dl |
1.1 |
p.remove(); |
589 |
|
|
} |
590 |
|
|
} |
591 |
|
|
|
592 |
dl |
1.5 |
/** |
593 |
dl |
1.6 |
* removeAll(c) removes only those elements of c and reports true if changed |
594 |
dl |
1.5 |
*/ |
595 |
|
|
public void testRemoveAll() { |
596 |
dl |
1.3 |
for (int i = 1; i < SIZE; ++i) { |
597 |
|
|
PriorityBlockingQueue q = populatedQueue(SIZE); |
598 |
|
|
PriorityBlockingQueue p = populatedQueue(i); |
599 |
dl |
1.1 |
assertTrue(q.removeAll(p)); |
600 |
dl |
1.3 |
assertEquals(SIZE-i, q.size()); |
601 |
dl |
1.1 |
for (int j = 0; j < i; ++j) { |
602 |
|
|
Integer I = (Integer)(p.remove()); |
603 |
|
|
assertFalse(q.contains(I)); |
604 |
|
|
} |
605 |
|
|
} |
606 |
|
|
} |
607 |
|
|
|
608 |
dl |
1.5 |
/** |
609 |
dl |
1.6 |
* toArray contains all elements |
610 |
dl |
1.5 |
*/ |
611 |
jsr166 |
1.15 |
public void testToArray() throws InterruptedException { |
612 |
dl |
1.3 |
PriorityBlockingQueue q = populatedQueue(SIZE); |
613 |
jsr166 |
1.16 |
Object[] o = q.toArray(); |
614 |
dl |
1.1 |
Arrays.sort(o); |
615 |
jsr166 |
1.16 |
for (int i = 0; i < o.length; i++) |
616 |
|
|
assertEquals(o[i], q.take()); |
617 |
dl |
1.1 |
} |
618 |
|
|
|
619 |
dl |
1.5 |
/** |
620 |
dl |
1.6 |
* toArray(a) contains all elements |
621 |
dl |
1.5 |
*/ |
622 |
jsr166 |
1.15 |
public void testToArray2() throws InterruptedException { |
623 |
dl |
1.3 |
PriorityBlockingQueue q = populatedQueue(SIZE); |
624 |
jsr166 |
1.16 |
Integer[] ints = new Integer[SIZE]; |
625 |
|
|
ints = (Integer[])q.toArray(ints); |
626 |
dl |
1.1 |
Arrays.sort(ints); |
627 |
jsr166 |
1.15 |
for (int i = 0; i < ints.length; i++) |
628 |
|
|
assertEquals(ints[i], q.take()); |
629 |
dl |
1.1 |
} |
630 |
dl |
1.7 |
|
631 |
|
|
/** |
632 |
|
|
* toArray(null) throws NPE |
633 |
|
|
*/ |
634 |
|
|
public void testToArray_BadArg() { |
635 |
jsr166 |
1.16 |
try { |
636 |
dl |
1.7 |
PriorityBlockingQueue q = populatedQueue(SIZE); |
637 |
jsr166 |
1.16 |
Object o[] = q.toArray(null); |
638 |
|
|
shouldThrow(); |
639 |
|
|
} catch (NullPointerException success) {} |
640 |
dl |
1.7 |
} |
641 |
|
|
|
642 |
|
|
/** |
643 |
dl |
1.9 |
* toArray with incompatible array type throws CCE |
644 |
dl |
1.7 |
*/ |
645 |
|
|
public void testToArray1_BadArg() { |
646 |
jsr166 |
1.16 |
try { |
647 |
dl |
1.7 |
PriorityBlockingQueue q = populatedQueue(SIZE); |
648 |
jsr166 |
1.16 |
Object o[] = q.toArray(new String[10] ); |
649 |
|
|
shouldThrow(); |
650 |
jsr166 |
1.19 |
} catch (ArrayStoreException success) {} |
651 |
dl |
1.7 |
} |
652 |
jsr166 |
1.12 |
|
653 |
dl |
1.5 |
/** |
654 |
dl |
1.6 |
* iterator iterates through all elements |
655 |
dl |
1.5 |
*/ |
656 |
|
|
public void testIterator() { |
657 |
dl |
1.3 |
PriorityBlockingQueue q = populatedQueue(SIZE); |
658 |
dl |
1.1 |
int i = 0; |
659 |
jsr166 |
1.16 |
Iterator it = q.iterator(); |
660 |
jsr166 |
1.13 |
while (it.hasNext()) { |
661 |
dl |
1.1 |
assertTrue(q.contains(it.next())); |
662 |
|
|
++i; |
663 |
|
|
} |
664 |
dl |
1.3 |
assertEquals(i, SIZE); |
665 |
dl |
1.1 |
} |
666 |
|
|
|
667 |
dl |
1.5 |
/** |
668 |
dl |
1.6 |
* iterator.remove removes current element |
669 |
dl |
1.5 |
*/ |
670 |
dl |
1.1 |
public void testIteratorRemove () { |
671 |
|
|
final PriorityBlockingQueue q = new PriorityBlockingQueue(3); |
672 |
|
|
q.add(new Integer(2)); |
673 |
|
|
q.add(new Integer(1)); |
674 |
|
|
q.add(new Integer(3)); |
675 |
|
|
|
676 |
|
|
Iterator it = q.iterator(); |
677 |
|
|
it.next(); |
678 |
|
|
it.remove(); |
679 |
|
|
|
680 |
|
|
it = q.iterator(); |
681 |
|
|
assertEquals(it.next(), new Integer(2)); |
682 |
|
|
assertEquals(it.next(), new Integer(3)); |
683 |
|
|
assertFalse(it.hasNext()); |
684 |
|
|
} |
685 |
|
|
|
686 |
|
|
|
687 |
dl |
1.5 |
/** |
688 |
dl |
1.6 |
* toString contains toStrings of elements |
689 |
dl |
1.5 |
*/ |
690 |
|
|
public void testToString() { |
691 |
dl |
1.3 |
PriorityBlockingQueue q = populatedQueue(SIZE); |
692 |
dl |
1.1 |
String s = q.toString(); |
693 |
dl |
1.3 |
for (int i = 0; i < SIZE; ++i) { |
694 |
dl |
1.1 |
assertTrue(s.indexOf(String.valueOf(i)) >= 0); |
695 |
|
|
} |
696 |
jsr166 |
1.12 |
} |
697 |
dl |
1.1 |
|
698 |
dl |
1.5 |
/** |
699 |
dl |
1.6 |
* offer transfers elements across Executor tasks |
700 |
dl |
1.5 |
*/ |
701 |
dl |
1.1 |
public void testPollInExecutor() { |
702 |
|
|
final PriorityBlockingQueue q = new PriorityBlockingQueue(2); |
703 |
|
|
ExecutorService executor = Executors.newFixedThreadPool(2); |
704 |
jsr166 |
1.15 |
executor.execute(new CheckedRunnable() { |
705 |
|
|
public void realRun() throws InterruptedException { |
706 |
dl |
1.3 |
threadAssertNull(q.poll()); |
707 |
jsr166 |
1.17 |
threadAssertTrue(null != q.poll(MEDIUM_DELAY_MS, MILLISECONDS)); |
708 |
jsr166 |
1.15 |
threadAssertTrue(q.isEmpty()); |
709 |
|
|
}}); |
710 |
|
|
|
711 |
|
|
executor.execute(new CheckedRunnable() { |
712 |
|
|
public void realRun() throws InterruptedException { |
713 |
|
|
Thread.sleep(SMALL_DELAY_MS); |
714 |
|
|
q.put(new Integer(1)); |
715 |
|
|
}}); |
716 |
jsr166 |
1.12 |
|
717 |
dl |
1.3 |
joinPool(executor); |
718 |
dl |
1.2 |
} |
719 |
|
|
|
720 |
dl |
1.5 |
/** |
721 |
jsr166 |
1.12 |
* A deserialized serialized queue has same elements |
722 |
dl |
1.5 |
*/ |
723 |
jsr166 |
1.15 |
public void testSerialization() throws Exception { |
724 |
dl |
1.3 |
PriorityBlockingQueue q = populatedQueue(SIZE); |
725 |
jsr166 |
1.15 |
ByteArrayOutputStream bout = new ByteArrayOutputStream(10000); |
726 |
|
|
ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout)); |
727 |
|
|
out.writeObject(q); |
728 |
|
|
out.close(); |
729 |
|
|
|
730 |
|
|
ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray()); |
731 |
|
|
ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin)); |
732 |
|
|
PriorityBlockingQueue r = (PriorityBlockingQueue)in.readObject(); |
733 |
|
|
assertEquals(q.size(), r.size()); |
734 |
|
|
while (!q.isEmpty()) |
735 |
|
|
assertEquals(q.remove(), r.remove()); |
736 |
dl |
1.1 |
} |
737 |
dl |
1.7 |
|
738 |
|
|
/** |
739 |
|
|
* drainTo(null) throws NPE |
740 |
jsr166 |
1.12 |
*/ |
741 |
dl |
1.7 |
public void testDrainToNull() { |
742 |
|
|
PriorityBlockingQueue q = populatedQueue(SIZE); |
743 |
|
|
try { |
744 |
|
|
q.drainTo(null); |
745 |
|
|
shouldThrow(); |
746 |
jsr166 |
1.15 |
} catch (NullPointerException success) {} |
747 |
dl |
1.7 |
} |
748 |
|
|
|
749 |
|
|
/** |
750 |
|
|
* drainTo(this) throws IAE |
751 |
jsr166 |
1.12 |
*/ |
752 |
dl |
1.7 |
public void testDrainToSelf() { |
753 |
|
|
PriorityBlockingQueue q = populatedQueue(SIZE); |
754 |
|
|
try { |
755 |
|
|
q.drainTo(q); |
756 |
|
|
shouldThrow(); |
757 |
jsr166 |
1.15 |
} catch (IllegalArgumentException success) {} |
758 |
dl |
1.7 |
} |
759 |
|
|
|
760 |
|
|
/** |
761 |
|
|
* drainTo(c) empties queue into another collection c |
762 |
jsr166 |
1.12 |
*/ |
763 |
dl |
1.7 |
public void testDrainTo() { |
764 |
|
|
PriorityBlockingQueue q = populatedQueue(SIZE); |
765 |
|
|
ArrayList l = new ArrayList(); |
766 |
|
|
q.drainTo(l); |
767 |
|
|
assertEquals(q.size(), 0); |
768 |
|
|
assertEquals(l.size(), SIZE); |
769 |
jsr166 |
1.12 |
for (int i = 0; i < SIZE; ++i) |
770 |
dl |
1.7 |
assertEquals(l.get(i), new Integer(i)); |
771 |
dl |
1.11 |
q.add(zero); |
772 |
|
|
q.add(one); |
773 |
|
|
assertFalse(q.isEmpty()); |
774 |
|
|
assertTrue(q.contains(zero)); |
775 |
|
|
assertTrue(q.contains(one)); |
776 |
|
|
l.clear(); |
777 |
|
|
q.drainTo(l); |
778 |
|
|
assertEquals(q.size(), 0); |
779 |
|
|
assertEquals(l.size(), 2); |
780 |
jsr166 |
1.12 |
for (int i = 0; i < 2; ++i) |
781 |
dl |
1.11 |
assertEquals(l.get(i), new Integer(i)); |
782 |
dl |
1.7 |
} |
783 |
|
|
|
784 |
|
|
/** |
785 |
|
|
* drainTo empties queue |
786 |
jsr166 |
1.12 |
*/ |
787 |
jsr166 |
1.15 |
public void testDrainToWithActivePut() throws InterruptedException { |
788 |
dl |
1.7 |
final PriorityBlockingQueue q = populatedQueue(SIZE); |
789 |
jsr166 |
1.15 |
Thread t = new Thread(new CheckedRunnable() { |
790 |
|
|
public void realRun() { |
791 |
|
|
q.put(new Integer(SIZE+1)); |
792 |
|
|
}}); |
793 |
|
|
|
794 |
|
|
t.start(); |
795 |
|
|
ArrayList l = new ArrayList(); |
796 |
|
|
q.drainTo(l); |
797 |
|
|
assertTrue(l.size() >= SIZE); |
798 |
|
|
for (int i = 0; i < SIZE; ++i) |
799 |
|
|
assertEquals(l.get(i), new Integer(i)); |
800 |
|
|
t.join(); |
801 |
|
|
assertTrue(q.size() + l.size() >= SIZE); |
802 |
dl |
1.7 |
} |
803 |
|
|
|
804 |
|
|
/** |
805 |
|
|
* drainTo(null, n) throws NPE |
806 |
jsr166 |
1.12 |
*/ |
807 |
dl |
1.7 |
public void testDrainToNullN() { |
808 |
|
|
PriorityBlockingQueue q = populatedQueue(SIZE); |
809 |
|
|
try { |
810 |
|
|
q.drainTo(null, 0); |
811 |
|
|
shouldThrow(); |
812 |
jsr166 |
1.15 |
} catch (NullPointerException success) {} |
813 |
dl |
1.7 |
} |
814 |
|
|
|
815 |
|
|
/** |
816 |
|
|
* drainTo(this, n) throws IAE |
817 |
jsr166 |
1.12 |
*/ |
818 |
dl |
1.7 |
public void testDrainToSelfN() { |
819 |
|
|
PriorityBlockingQueue q = populatedQueue(SIZE); |
820 |
|
|
try { |
821 |
|
|
q.drainTo(q, 0); |
822 |
|
|
shouldThrow(); |
823 |
jsr166 |
1.15 |
} catch (IllegalArgumentException success) {} |
824 |
dl |
1.7 |
} |
825 |
|
|
|
826 |
|
|
/** |
827 |
|
|
* drainTo(c, n) empties first max {n, size} elements of queue into c |
828 |
jsr166 |
1.12 |
*/ |
829 |
dl |
1.7 |
public void testDrainToN() { |
830 |
dl |
1.11 |
PriorityBlockingQueue q = new PriorityBlockingQueue(SIZE*2); |
831 |
dl |
1.7 |
for (int i = 0; i < SIZE + 2; ++i) { |
832 |
jsr166 |
1.13 |
for (int j = 0; j < SIZE; j++) |
833 |
dl |
1.11 |
assertTrue(q.offer(new Integer(j))); |
834 |
dl |
1.7 |
ArrayList l = new ArrayList(); |
835 |
|
|
q.drainTo(l, i); |
836 |
|
|
int k = (i < SIZE)? i : SIZE; |
837 |
dl |
1.11 |
assertEquals(l.size(), k); |
838 |
dl |
1.7 |
assertEquals(q.size(), SIZE-k); |
839 |
jsr166 |
1.12 |
for (int j = 0; j < k; ++j) |
840 |
dl |
1.11 |
assertEquals(l.get(j), new Integer(j)); |
841 |
|
|
while (q.poll() != null) ; |
842 |
dl |
1.7 |
} |
843 |
|
|
} |
844 |
|
|
|
845 |
dl |
1.1 |
} |