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 |
1.47 |
* http://creativecommons.org/publicdomain/zero/1.0/ |
5 |
jsr166 |
1.15 |
* 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 |
1.64 |
import static java.util.concurrent.TimeUnit.MILLISECONDS; |
10 |
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11 |
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import java.util.ArrayList; |
12 |
jsr166 |
1.53 |
import java.util.Arrays; |
13 |
jsr166 |
1.63 |
import java.util.Collection; |
14 |
jsr166 |
1.53 |
import java.util.Iterator; |
15 |
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import java.util.NoSuchElementException; |
16 |
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import java.util.concurrent.BlockingQueue; |
17 |
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import java.util.concurrent.CountDownLatch; |
18 |
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import java.util.concurrent.Delayed; |
19 |
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import java.util.concurrent.DelayQueue; |
20 |
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import java.util.concurrent.Executors; |
21 |
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import java.util.concurrent.ExecutorService; |
22 |
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import java.util.concurrent.TimeUnit; |
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jsr166 |
1.64 |
|
24 |
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import junit.framework.Test; |
25 |
dl |
1.1 |
|
26 |
dl |
1.3 |
public class DelayQueueTest extends JSR166TestCase { |
27 |
jsr166 |
1.53 |
|
28 |
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public static class Generic extends BlockingQueueTest { |
29 |
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protected BlockingQueue emptyCollection() { |
30 |
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return new DelayQueue(); |
31 |
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} |
32 |
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protected PDelay makeElement(int i) { |
33 |
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return new PDelay(i); |
34 |
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} |
35 |
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} |
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37 |
dl |
1.1 |
public static void main(String[] args) { |
38 |
jsr166 |
1.71 |
main(suite(), args); |
39 |
dl |
1.1 |
} |
40 |
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41 |
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public static Test suite() { |
42 |
jsr166 |
1.53 |
return newTestSuite(DelayQueueTest.class, |
43 |
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new Generic().testSuite()); |
44 |
dl |
1.1 |
} |
45 |
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46 |
dl |
1.4 |
/** |
47 |
dl |
1.8 |
* A delayed implementation for testing. |
48 |
jsr166 |
1.28 |
* Most tests use Pseudodelays, where delays are all elapsed |
49 |
dl |
1.4 |
* (so, no blocking solely for delays) but are still ordered |
50 |
jsr166 |
1.15 |
*/ |
51 |
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static class PDelay implements Delayed { |
52 |
dl |
1.1 |
int pseudodelay; |
53 |
jsr166 |
1.55 |
PDelay(int i) { pseudodelay = i; } |
54 |
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public int compareTo(PDelay other) { |
55 |
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int a = this.pseudodelay; |
56 |
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int b = other.pseudodelay; |
57 |
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return (a < b) ? -1 : (a > b) ? 1 : 0; |
58 |
dl |
1.1 |
} |
59 |
dl |
1.10 |
public int compareTo(Delayed y) { |
60 |
jsr166 |
1.28 |
return compareTo((PDelay)y); |
61 |
dl |
1.1 |
} |
62 |
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public boolean equals(Object other) { |
63 |
jsr166 |
1.55 |
return (other instanceof PDelay) && |
64 |
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this.pseudodelay == ((PDelay)other).pseudodelay; |
65 |
dl |
1.1 |
} |
66 |
jsr166 |
1.61 |
// suppress [overrides] javac warning |
67 |
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public int hashCode() { return pseudodelay; } |
68 |
dl |
1.1 |
public long getDelay(TimeUnit ignore) { |
69 |
jsr166 |
1.55 |
return Integer.MIN_VALUE + pseudodelay; |
70 |
dl |
1.1 |
} |
71 |
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public String toString() { |
72 |
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return String.valueOf(pseudodelay); |
73 |
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} |
74 |
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} |
75 |
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|
76 |
dl |
1.4 |
/** |
77 |
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* Delayed implementation that actually delays |
78 |
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*/ |
79 |
jsr166 |
1.15 |
static class NanoDelay implements Delayed { |
80 |
dl |
1.4 |
long trigger; |
81 |
jsr166 |
1.15 |
NanoDelay(long i) { |
82 |
dl |
1.4 |
trigger = System.nanoTime() + i; |
83 |
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} |
84 |
dl |
1.10 |
public int compareTo(NanoDelay y) { |
85 |
dl |
1.4 |
long i = trigger; |
86 |
jsr166 |
1.28 |
long j = y.trigger; |
87 |
dl |
1.4 |
if (i < j) return -1; |
88 |
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if (i > j) return 1; |
89 |
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return 0; |
90 |
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} |
91 |
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92 |
dl |
1.10 |
public int compareTo(Delayed y) { |
93 |
jsr166 |
1.28 |
return compareTo((NanoDelay)y); |
94 |
dl |
1.4 |
} |
95 |
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96 |
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public boolean equals(Object other) { |
97 |
jsr166 |
1.28 |
return equals((NanoDelay)other); |
98 |
dl |
1.4 |
} |
99 |
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public boolean equals(NanoDelay other) { |
100 |
jsr166 |
1.28 |
return other.trigger == trigger; |
101 |
dl |
1.4 |
} |
102 |
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103 |
jsr166 |
1.61 |
// suppress [overrides] javac warning |
104 |
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public int hashCode() { return (int) trigger; } |
105 |
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106 |
dl |
1.4 |
public long getDelay(TimeUnit unit) { |
107 |
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long n = trigger - System.nanoTime(); |
108 |
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return unit.convert(n, TimeUnit.NANOSECONDS); |
109 |
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} |
110 |
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111 |
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public long getTriggerTime() { |
112 |
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return trigger; |
113 |
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} |
114 |
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115 |
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public String toString() { |
116 |
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return String.valueOf(trigger); |
117 |
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} |
118 |
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} |
119 |
dl |
1.1 |
|
120 |
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/** |
121 |
jsr166 |
1.60 |
* Returns a new queue of given size containing consecutive |
122 |
dl |
1.1 |
* PDelays 0 ... n. |
123 |
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*/ |
124 |
jsr166 |
1.45 |
private DelayQueue<PDelay> populatedQueue(int n) { |
125 |
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DelayQueue<PDelay> q = new DelayQueue<PDelay>(); |
126 |
dl |
1.1 |
assertTrue(q.isEmpty()); |
127 |
jsr166 |
1.74 |
for (int i = n - 1; i >= 0; i -= 2) |
128 |
jsr166 |
1.18 |
assertTrue(q.offer(new PDelay(i))); |
129 |
jsr166 |
1.65 |
for (int i = (n & 1); i < n; i += 2) |
130 |
jsr166 |
1.18 |
assertTrue(q.offer(new PDelay(i))); |
131 |
dl |
1.1 |
assertFalse(q.isEmpty()); |
132 |
jsr166 |
1.70 |
assertEquals(Integer.MAX_VALUE, q.remainingCapacity()); |
133 |
jsr166 |
1.18 |
assertEquals(n, q.size()); |
134 |
dl |
1.1 |
return q; |
135 |
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} |
136 |
jsr166 |
1.15 |
|
137 |
dl |
1.4 |
/** |
138 |
dl |
1.5 |
* A new queue has unbounded capacity |
139 |
dl |
1.4 |
*/ |
140 |
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public void testConstructor1() { |
141 |
jsr166 |
1.70 |
assertEquals(Integer.MAX_VALUE, new DelayQueue().remainingCapacity()); |
142 |
dl |
1.1 |
} |
143 |
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|
144 |
dl |
1.4 |
/** |
145 |
dl |
1.5 |
* Initializing from null Collection throws NPE |
146 |
dl |
1.4 |
*/ |
147 |
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public void testConstructor3() { |
148 |
dl |
1.1 |
try { |
149 |
jsr166 |
1.69 |
new DelayQueue(null); |
150 |
dl |
1.4 |
shouldThrow(); |
151 |
jsr166 |
1.20 |
} catch (NullPointerException success) {} |
152 |
dl |
1.1 |
} |
153 |
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|
154 |
dl |
1.4 |
/** |
155 |
dl |
1.5 |
* Initializing from Collection of null elements throws NPE |
156 |
dl |
1.4 |
*/ |
157 |
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public void testConstructor4() { |
158 |
dl |
1.1 |
try { |
159 |
jsr166 |
1.72 |
new DelayQueue(Arrays.asList(new PDelay[SIZE])); |
160 |
dl |
1.4 |
shouldThrow(); |
161 |
jsr166 |
1.20 |
} catch (NullPointerException success) {} |
162 |
dl |
1.1 |
} |
163 |
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|
164 |
dl |
1.4 |
/** |
165 |
dl |
1.5 |
* Initializing from Collection with some null elements throws NPE |
166 |
dl |
1.4 |
*/ |
167 |
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public void testConstructor5() { |
168 |
jsr166 |
1.72 |
PDelay[] a = new PDelay[SIZE]; |
169 |
jsr166 |
1.73 |
for (int i = 0; i < SIZE - 1; ++i) |
170 |
jsr166 |
1.72 |
a[i] = new PDelay(i); |
171 |
dl |
1.1 |
try { |
172 |
jsr166 |
1.72 |
new DelayQueue(Arrays.asList(a)); |
173 |
dl |
1.4 |
shouldThrow(); |
174 |
jsr166 |
1.20 |
} catch (NullPointerException success) {} |
175 |
dl |
1.1 |
} |
176 |
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|
177 |
dl |
1.4 |
/** |
178 |
dl |
1.5 |
* Queue contains all elements of collection used to initialize |
179 |
dl |
1.4 |
*/ |
180 |
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public void testConstructor6() { |
181 |
jsr166 |
1.21 |
PDelay[] ints = new PDelay[SIZE]; |
182 |
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for (int i = 0; i < SIZE; ++i) |
183 |
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ints[i] = new PDelay(i); |
184 |
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DelayQueue q = new DelayQueue(Arrays.asList(ints)); |
185 |
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for (int i = 0; i < SIZE; ++i) |
186 |
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assertEquals(ints[i], q.poll()); |
187 |
dl |
1.1 |
} |
188 |
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|
189 |
dl |
1.4 |
/** |
190 |
dl |
1.5 |
* isEmpty is true before add, false after |
191 |
dl |
1.4 |
*/ |
192 |
dl |
1.1 |
public void testEmpty() { |
193 |
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DelayQueue q = new DelayQueue(); |
194 |
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assertTrue(q.isEmpty()); |
195 |
jsr166 |
1.70 |
assertEquals(Integer.MAX_VALUE, q.remainingCapacity()); |
196 |
dl |
1.1 |
q.add(new PDelay(1)); |
197 |
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assertFalse(q.isEmpty()); |
198 |
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q.add(new PDelay(2)); |
199 |
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q.remove(); |
200 |
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q.remove(); |
201 |
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assertTrue(q.isEmpty()); |
202 |
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} |
203 |
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|
204 |
dl |
1.4 |
/** |
205 |
jsr166 |
1.70 |
* remainingCapacity() always returns Integer.MAX_VALUE |
206 |
dl |
1.4 |
*/ |
207 |
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public void testRemainingCapacity() { |
208 |
jsr166 |
1.70 |
BlockingQueue q = populatedQueue(SIZE); |
209 |
dl |
1.3 |
for (int i = 0; i < SIZE; ++i) { |
210 |
jsr166 |
1.70 |
assertEquals(Integer.MAX_VALUE, q.remainingCapacity()); |
211 |
jsr166 |
1.73 |
assertEquals(SIZE - i, q.size()); |
212 |
jsr166 |
1.70 |
assertTrue(q.remove() instanceof PDelay); |
213 |
dl |
1.1 |
} |
214 |
dl |
1.3 |
for (int i = 0; i < SIZE; ++i) { |
215 |
jsr166 |
1.70 |
assertEquals(Integer.MAX_VALUE, q.remainingCapacity()); |
216 |
dl |
1.1 |
assertEquals(i, q.size()); |
217 |
jsr166 |
1.70 |
assertTrue(q.add(new PDelay(i))); |
218 |
dl |
1.1 |
} |
219 |
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} |
220 |
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|
221 |
dl |
1.4 |
/** |
222 |
dl |
1.5 |
* offer non-null succeeds |
223 |
dl |
1.4 |
*/ |
224 |
dl |
1.1 |
public void testOffer() { |
225 |
|
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DelayQueue q = new DelayQueue(); |
226 |
|
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assertTrue(q.offer(new PDelay(0))); |
227 |
|
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assertTrue(q.offer(new PDelay(1))); |
228 |
|
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} |
229 |
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|
230 |
dl |
1.4 |
/** |
231 |
dl |
1.5 |
* add succeeds |
232 |
dl |
1.4 |
*/ |
233 |
|
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public void testAdd() { |
234 |
dl |
1.1 |
DelayQueue q = new DelayQueue(); |
235 |
dl |
1.3 |
for (int i = 0; i < SIZE; ++i) { |
236 |
dl |
1.1 |
assertEquals(i, q.size()); |
237 |
|
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assertTrue(q.add(new PDelay(i))); |
238 |
|
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} |
239 |
|
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} |
240 |
|
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|
241 |
dl |
1.4 |
/** |
242 |
dl |
1.6 |
* addAll(this) throws IAE |
243 |
|
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*/ |
244 |
|
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public void testAddAllSelf() { |
245 |
jsr166 |
1.72 |
DelayQueue q = populatedQueue(SIZE); |
246 |
dl |
1.6 |
try { |
247 |
|
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q.addAll(q); |
248 |
|
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shouldThrow(); |
249 |
jsr166 |
1.20 |
} catch (IllegalArgumentException success) {} |
250 |
dl |
1.6 |
} |
251 |
|
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|
252 |
dl |
1.4 |
/** |
253 |
dl |
1.5 |
* addAll of a collection with any null elements throws NPE after |
254 |
|
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* possibly adding some elements |
255 |
dl |
1.4 |
*/ |
256 |
|
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public void testAddAll3() { |
257 |
jsr166 |
1.72 |
DelayQueue q = new DelayQueue(); |
258 |
|
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PDelay[] a = new PDelay[SIZE]; |
259 |
jsr166 |
1.73 |
for (int i = 0; i < SIZE - 1; ++i) |
260 |
jsr166 |
1.72 |
a[i] = new PDelay(i); |
261 |
dl |
1.1 |
try { |
262 |
jsr166 |
1.72 |
q.addAll(Arrays.asList(a)); |
263 |
dl |
1.4 |
shouldThrow(); |
264 |
jsr166 |
1.20 |
} catch (NullPointerException success) {} |
265 |
dl |
1.1 |
} |
266 |
|
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|
267 |
dl |
1.4 |
/** |
268 |
dl |
1.5 |
* Queue contains all elements of successful addAll |
269 |
dl |
1.4 |
*/ |
270 |
|
|
public void testAddAll5() { |
271 |
jsr166 |
1.21 |
PDelay[] empty = new PDelay[0]; |
272 |
|
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PDelay[] ints = new PDelay[SIZE]; |
273 |
jsr166 |
1.73 |
for (int i = SIZE - 1; i >= 0; --i) |
274 |
jsr166 |
1.21 |
ints[i] = new PDelay(i); |
275 |
|
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DelayQueue q = new DelayQueue(); |
276 |
|
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assertFalse(q.addAll(Arrays.asList(empty))); |
277 |
|
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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 |
|
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|
282 |
dl |
1.4 |
/** |
283 |
dl |
1.5 |
* all elements successfully put are contained |
284 |
dl |
1.4 |
*/ |
285 |
jsr166 |
1.48 |
public void testPut() { |
286 |
|
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DelayQueue q = new DelayQueue(); |
287 |
|
|
for (int i = 0; i < SIZE; ++i) { |
288 |
jsr166 |
1.66 |
PDelay x = new PDelay(i); |
289 |
|
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q.put(x); |
290 |
|
|
assertTrue(q.contains(x)); |
291 |
jsr166 |
1.48 |
} |
292 |
|
|
assertEquals(SIZE, q.size()); |
293 |
dl |
1.1 |
} |
294 |
|
|
|
295 |
dl |
1.4 |
/** |
296 |
dl |
1.5 |
* put doesn't block waiting for take |
297 |
dl |
1.4 |
*/ |
298 |
jsr166 |
1.20 |
public void testPutWithTake() throws InterruptedException { |
299 |
dl |
1.1 |
final DelayQueue q = new DelayQueue(); |
300 |
jsr166 |
1.50 |
Thread t = newStartedThread(new CheckedRunnable() { |
301 |
jsr166 |
1.20 |
public void realRun() { |
302 |
|
|
q.put(new PDelay(0)); |
303 |
|
|
q.put(new PDelay(0)); |
304 |
|
|
q.put(new PDelay(0)); |
305 |
|
|
q.put(new PDelay(0)); |
306 |
|
|
}}); |
307 |
|
|
|
308 |
jsr166 |
1.50 |
awaitTermination(t); |
309 |
|
|
assertEquals(4, q.size()); |
310 |
dl |
1.1 |
} |
311 |
|
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|
312 |
dl |
1.4 |
/** |
313 |
dl |
1.5 |
* timed offer does not time out |
314 |
dl |
1.4 |
*/ |
315 |
jsr166 |
1.20 |
public void testTimedOffer() throws InterruptedException { |
316 |
dl |
1.1 |
final DelayQueue q = new DelayQueue(); |
317 |
jsr166 |
1.50 |
Thread t = newStartedThread(new CheckedRunnable() { |
318 |
jsr166 |
1.20 |
public void realRun() throws InterruptedException { |
319 |
|
|
q.put(new PDelay(0)); |
320 |
|
|
q.put(new PDelay(0)); |
321 |
jsr166 |
1.24 |
assertTrue(q.offer(new PDelay(0), SHORT_DELAY_MS, MILLISECONDS)); |
322 |
|
|
assertTrue(q.offer(new PDelay(0), LONG_DELAY_MS, MILLISECONDS)); |
323 |
jsr166 |
1.20 |
}}); |
324 |
jsr166 |
1.15 |
|
325 |
jsr166 |
1.50 |
awaitTermination(t); |
326 |
dl |
1.1 |
} |
327 |
|
|
|
328 |
dl |
1.4 |
/** |
329 |
dl |
1.5 |
* take retrieves elements in priority order |
330 |
dl |
1.4 |
*/ |
331 |
jsr166 |
1.20 |
public void testTake() throws InterruptedException { |
332 |
|
|
DelayQueue q = populatedQueue(SIZE); |
333 |
|
|
for (int i = 0; i < SIZE; ++i) { |
334 |
jsr166 |
1.67 |
assertEquals(new PDelay(i), q.take()); |
335 |
jsr166 |
1.18 |
} |
336 |
dl |
1.1 |
} |
337 |
|
|
|
338 |
dl |
1.4 |
/** |
339 |
dl |
1.5 |
* Take removes existing elements until empty, then blocks interruptibly |
340 |
dl |
1.4 |
*/ |
341 |
jsr166 |
1.20 |
public void testBlockingTake() throws InterruptedException { |
342 |
jsr166 |
1.25 |
final DelayQueue q = populatedQueue(SIZE); |
343 |
jsr166 |
1.50 |
final CountDownLatch pleaseInterrupt = new CountDownLatch(1); |
344 |
|
|
Thread t = newStartedThread(new CheckedRunnable() { |
345 |
jsr166 |
1.20 |
public void realRun() throws InterruptedException { |
346 |
|
|
for (int i = 0; i < SIZE; ++i) { |
347 |
jsr166 |
1.25 |
assertEquals(new PDelay(i), ((PDelay)q.take())); |
348 |
jsr166 |
1.20 |
} |
349 |
jsr166 |
1.50 |
|
350 |
|
|
Thread.currentThread().interrupt(); |
351 |
|
|
try { |
352 |
|
|
q.take(); |
353 |
|
|
shouldThrow(); |
354 |
|
|
} catch (InterruptedException success) {} |
355 |
|
|
assertFalse(Thread.interrupted()); |
356 |
|
|
|
357 |
|
|
pleaseInterrupt.countDown(); |
358 |
jsr166 |
1.25 |
try { |
359 |
|
|
q.take(); |
360 |
|
|
shouldThrow(); |
361 |
|
|
} catch (InterruptedException success) {} |
362 |
jsr166 |
1.50 |
assertFalse(Thread.interrupted()); |
363 |
jsr166 |
1.25 |
}}); |
364 |
jsr166 |
1.20 |
|
365 |
jsr166 |
1.50 |
await(pleaseInterrupt); |
366 |
|
|
assertThreadStaysAlive(t); |
367 |
jsr166 |
1.20 |
t.interrupt(); |
368 |
jsr166 |
1.50 |
awaitTermination(t); |
369 |
dl |
1.1 |
} |
370 |
|
|
|
371 |
dl |
1.4 |
/** |
372 |
dl |
1.5 |
* poll succeeds unless empty |
373 |
dl |
1.4 |
*/ |
374 |
|
|
public void testPoll() { |
375 |
dl |
1.3 |
DelayQueue q = populatedQueue(SIZE); |
376 |
|
|
for (int i = 0; i < SIZE; ++i) { |
377 |
jsr166 |
1.67 |
assertEquals(new PDelay(i), q.poll()); |
378 |
dl |
1.1 |
} |
379 |
jsr166 |
1.18 |
assertNull(q.poll()); |
380 |
dl |
1.1 |
} |
381 |
|
|
|
382 |
dl |
1.4 |
/** |
383 |
jsr166 |
1.41 |
* timed poll with zero timeout succeeds when non-empty, else times out |
384 |
dl |
1.4 |
*/ |
385 |
jsr166 |
1.20 |
public void testTimedPoll0() throws InterruptedException { |
386 |
|
|
DelayQueue q = populatedQueue(SIZE); |
387 |
|
|
for (int i = 0; i < SIZE; ++i) { |
388 |
jsr166 |
1.67 |
assertEquals(new PDelay(i), q.poll(0, MILLISECONDS)); |
389 |
jsr166 |
1.18 |
} |
390 |
jsr166 |
1.20 |
assertNull(q.poll(0, MILLISECONDS)); |
391 |
dl |
1.1 |
} |
392 |
|
|
|
393 |
dl |
1.4 |
/** |
394 |
jsr166 |
1.41 |
* timed poll with nonzero timeout succeeds when non-empty, else times out |
395 |
dl |
1.4 |
*/ |
396 |
jsr166 |
1.20 |
public void testTimedPoll() throws InterruptedException { |
397 |
|
|
DelayQueue q = populatedQueue(SIZE); |
398 |
|
|
for (int i = 0; i < SIZE; ++i) { |
399 |
jsr166 |
1.51 |
long startTime = System.nanoTime(); |
400 |
jsr166 |
1.67 |
assertEquals(new PDelay(i), q.poll(LONG_DELAY_MS, MILLISECONDS)); |
401 |
jsr166 |
1.51 |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
402 |
jsr166 |
1.18 |
} |
403 |
jsr166 |
1.51 |
long startTime = System.nanoTime(); |
404 |
|
|
assertNull(q.poll(timeoutMillis(), MILLISECONDS)); |
405 |
|
|
assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
406 |
|
|
checkEmpty(q); |
407 |
dl |
1.1 |
} |
408 |
|
|
|
409 |
dl |
1.4 |
/** |
410 |
dl |
1.5 |
* Interrupted timed poll throws InterruptedException instead of |
411 |
|
|
* returning timeout status |
412 |
dl |
1.4 |
*/ |
413 |
jsr166 |
1.20 |
public void testInterruptedTimedPoll() throws InterruptedException { |
414 |
jsr166 |
1.50 |
final CountDownLatch pleaseInterrupt = new CountDownLatch(1); |
415 |
jsr166 |
1.76 |
final DelayQueue q = populatedQueue(SIZE); |
416 |
jsr166 |
1.50 |
Thread t = newStartedThread(new CheckedRunnable() { |
417 |
jsr166 |
1.20 |
public void realRun() throws InterruptedException { |
418 |
jsr166 |
1.76 |
long startTime = System.nanoTime(); |
419 |
jsr166 |
1.20 |
for (int i = 0; i < SIZE; ++i) { |
420 |
jsr166 |
1.76 |
assertEquals(new PDelay(i), |
421 |
|
|
((PDelay)q.poll(LONG_DELAY_MS, MILLISECONDS))); |
422 |
jsr166 |
1.20 |
} |
423 |
jsr166 |
1.50 |
|
424 |
|
|
Thread.currentThread().interrupt(); |
425 |
|
|
try { |
426 |
|
|
q.poll(LONG_DELAY_MS, MILLISECONDS); |
427 |
|
|
shouldThrow(); |
428 |
|
|
} catch (InterruptedException success) {} |
429 |
|
|
assertFalse(Thread.interrupted()); |
430 |
|
|
|
431 |
|
|
pleaseInterrupt.countDown(); |
432 |
jsr166 |
1.20 |
try { |
433 |
jsr166 |
1.50 |
q.poll(LONG_DELAY_MS, MILLISECONDS); |
434 |
jsr166 |
1.20 |
shouldThrow(); |
435 |
|
|
} catch (InterruptedException success) {} |
436 |
jsr166 |
1.50 |
assertFalse(Thread.interrupted()); |
437 |
jsr166 |
1.76 |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
438 |
jsr166 |
1.20 |
}}); |
439 |
|
|
|
440 |
jsr166 |
1.50 |
await(pleaseInterrupt); |
441 |
|
|
assertThreadStaysAlive(t); |
442 |
jsr166 |
1.20 |
t.interrupt(); |
443 |
jsr166 |
1.50 |
awaitTermination(t); |
444 |
jsr166 |
1.76 |
checkEmpty(q); |
445 |
dl |
1.1 |
} |
446 |
|
|
|
447 |
dl |
1.4 |
/** |
448 |
dl |
1.5 |
* peek returns next element, or null if empty |
449 |
dl |
1.4 |
*/ |
450 |
|
|
public void testPeek() { |
451 |
dl |
1.3 |
DelayQueue q = populatedQueue(SIZE); |
452 |
|
|
for (int i = 0; i < SIZE; ++i) { |
453 |
jsr166 |
1.67 |
assertEquals(new PDelay(i), q.peek()); |
454 |
|
|
assertEquals(new PDelay(i), q.poll()); |
455 |
dl |
1.12 |
if (q.isEmpty()) |
456 |
|
|
assertNull(q.peek()); |
457 |
|
|
else |
458 |
jsr166 |
1.26 |
assertFalse(new PDelay(i).equals(q.peek())); |
459 |
dl |
1.1 |
} |
460 |
jsr166 |
1.18 |
assertNull(q.peek()); |
461 |
dl |
1.1 |
} |
462 |
|
|
|
463 |
dl |
1.4 |
/** |
464 |
dl |
1.5 |
* element returns next element, or throws NSEE if empty |
465 |
dl |
1.4 |
*/ |
466 |
|
|
public void testElement() { |
467 |
dl |
1.3 |
DelayQueue q = populatedQueue(SIZE); |
468 |
|
|
for (int i = 0; i < SIZE; ++i) { |
469 |
jsr166 |
1.67 |
assertEquals(new PDelay(i), q.element()); |
470 |
dl |
1.1 |
q.poll(); |
471 |
|
|
} |
472 |
|
|
try { |
473 |
|
|
q.element(); |
474 |
dl |
1.4 |
shouldThrow(); |
475 |
jsr166 |
1.20 |
} catch (NoSuchElementException success) {} |
476 |
dl |
1.1 |
} |
477 |
|
|
|
478 |
dl |
1.4 |
/** |
479 |
dl |
1.5 |
* remove removes next element, or throws NSEE if empty |
480 |
dl |
1.4 |
*/ |
481 |
|
|
public void testRemove() { |
482 |
dl |
1.3 |
DelayQueue q = populatedQueue(SIZE); |
483 |
|
|
for (int i = 0; i < SIZE; ++i) { |
484 |
jsr166 |
1.67 |
assertEquals(new PDelay(i), q.remove()); |
485 |
dl |
1.1 |
} |
486 |
|
|
try { |
487 |
|
|
q.remove(); |
488 |
dl |
1.4 |
shouldThrow(); |
489 |
jsr166 |
1.20 |
} catch (NoSuchElementException success) {} |
490 |
dl |
1.1 |
} |
491 |
|
|
|
492 |
dl |
1.4 |
/** |
493 |
dl |
1.5 |
* contains(x) reports true when elements added but not yet removed |
494 |
dl |
1.4 |
*/ |
495 |
|
|
public void testContains() { |
496 |
dl |
1.3 |
DelayQueue q = populatedQueue(SIZE); |
497 |
|
|
for (int i = 0; i < SIZE; ++i) { |
498 |
dl |
1.1 |
assertTrue(q.contains(new PDelay(i))); |
499 |
|
|
q.poll(); |
500 |
|
|
assertFalse(q.contains(new PDelay(i))); |
501 |
|
|
} |
502 |
|
|
} |
503 |
|
|
|
504 |
dl |
1.4 |
/** |
505 |
dl |
1.5 |
* clear removes all elements |
506 |
dl |
1.4 |
*/ |
507 |
|
|
public void testClear() { |
508 |
dl |
1.3 |
DelayQueue q = populatedQueue(SIZE); |
509 |
dl |
1.1 |
q.clear(); |
510 |
|
|
assertTrue(q.isEmpty()); |
511 |
|
|
assertEquals(0, q.size()); |
512 |
jsr166 |
1.70 |
assertEquals(Integer.MAX_VALUE, q.remainingCapacity()); |
513 |
dl |
1.11 |
PDelay x = new PDelay(1); |
514 |
|
|
q.add(x); |
515 |
dl |
1.1 |
assertFalse(q.isEmpty()); |
516 |
dl |
1.11 |
assertTrue(q.contains(x)); |
517 |
dl |
1.1 |
q.clear(); |
518 |
|
|
assertTrue(q.isEmpty()); |
519 |
|
|
} |
520 |
|
|
|
521 |
dl |
1.4 |
/** |
522 |
dl |
1.5 |
* containsAll(c) is true when c contains a subset of elements |
523 |
dl |
1.4 |
*/ |
524 |
|
|
public void testContainsAll() { |
525 |
dl |
1.3 |
DelayQueue q = populatedQueue(SIZE); |
526 |
dl |
1.1 |
DelayQueue p = new DelayQueue(); |
527 |
dl |
1.3 |
for (int i = 0; i < SIZE; ++i) { |
528 |
dl |
1.1 |
assertTrue(q.containsAll(p)); |
529 |
|
|
assertFalse(p.containsAll(q)); |
530 |
|
|
p.add(new PDelay(i)); |
531 |
|
|
} |
532 |
|
|
assertTrue(p.containsAll(q)); |
533 |
|
|
} |
534 |
|
|
|
535 |
dl |
1.4 |
/** |
536 |
dl |
1.5 |
* retainAll(c) retains only those elements of c and reports true if changed |
537 |
dl |
1.4 |
*/ |
538 |
|
|
public void testRetainAll() { |
539 |
dl |
1.3 |
DelayQueue q = populatedQueue(SIZE); |
540 |
|
|
DelayQueue p = populatedQueue(SIZE); |
541 |
|
|
for (int i = 0; i < SIZE; ++i) { |
542 |
dl |
1.1 |
boolean changed = q.retainAll(p); |
543 |
|
|
if (i == 0) |
544 |
|
|
assertFalse(changed); |
545 |
|
|
else |
546 |
|
|
assertTrue(changed); |
547 |
|
|
|
548 |
|
|
assertTrue(q.containsAll(p)); |
549 |
jsr166 |
1.73 |
assertEquals(SIZE - i, q.size()); |
550 |
dl |
1.1 |
p.remove(); |
551 |
|
|
} |
552 |
|
|
} |
553 |
|
|
|
554 |
dl |
1.4 |
/** |
555 |
dl |
1.5 |
* removeAll(c) removes only those elements of c and reports true if changed |
556 |
dl |
1.4 |
*/ |
557 |
|
|
public void testRemoveAll() { |
558 |
dl |
1.3 |
for (int i = 1; i < SIZE; ++i) { |
559 |
|
|
DelayQueue q = populatedQueue(SIZE); |
560 |
|
|
DelayQueue p = populatedQueue(i); |
561 |
dl |
1.1 |
assertTrue(q.removeAll(p)); |
562 |
jsr166 |
1.73 |
assertEquals(SIZE - i, q.size()); |
563 |
dl |
1.1 |
for (int j = 0; j < i; ++j) { |
564 |
jsr166 |
1.66 |
PDelay x = (PDelay)(p.remove()); |
565 |
|
|
assertFalse(q.contains(x)); |
566 |
dl |
1.1 |
} |
567 |
|
|
} |
568 |
|
|
} |
569 |
|
|
|
570 |
dl |
1.4 |
/** |
571 |
dl |
1.5 |
* toArray contains all elements |
572 |
dl |
1.4 |
*/ |
573 |
jsr166 |
1.20 |
public void testToArray() throws InterruptedException { |
574 |
dl |
1.3 |
DelayQueue q = populatedQueue(SIZE); |
575 |
jsr166 |
1.18 |
Object[] o = q.toArray(); |
576 |
dl |
1.1 |
Arrays.sort(o); |
577 |
jsr166 |
1.18 |
for (int i = 0; i < o.length; i++) |
578 |
jsr166 |
1.44 |
assertSame(o[i], q.take()); |
579 |
dl |
1.1 |
} |
580 |
|
|
|
581 |
dl |
1.4 |
/** |
582 |
dl |
1.5 |
* toArray(a) contains all elements |
583 |
dl |
1.4 |
*/ |
584 |
jsr166 |
1.44 |
public void testToArray2() { |
585 |
jsr166 |
1.45 |
DelayQueue<PDelay> q = populatedQueue(SIZE); |
586 |
jsr166 |
1.18 |
PDelay[] ints = new PDelay[SIZE]; |
587 |
jsr166 |
1.45 |
PDelay[] array = q.toArray(ints); |
588 |
|
|
assertSame(ints, array); |
589 |
dl |
1.1 |
Arrays.sort(ints); |
590 |
jsr166 |
1.20 |
for (int i = 0; i < ints.length; i++) |
591 |
jsr166 |
1.44 |
assertSame(ints[i], q.remove()); |
592 |
dl |
1.1 |
} |
593 |
dl |
1.6 |
|
594 |
|
|
/** |
595 |
jsr166 |
1.42 |
* toArray(incompatible array type) throws ArrayStoreException |
596 |
dl |
1.6 |
*/ |
597 |
|
|
public void testToArray1_BadArg() { |
598 |
jsr166 |
1.26 |
DelayQueue q = populatedQueue(SIZE); |
599 |
jsr166 |
1.18 |
try { |
600 |
jsr166 |
1.42 |
q.toArray(new String[10]); |
601 |
jsr166 |
1.18 |
shouldThrow(); |
602 |
jsr166 |
1.20 |
} catch (ArrayStoreException success) {} |
603 |
dl |
1.6 |
} |
604 |
jsr166 |
1.15 |
|
605 |
dl |
1.4 |
/** |
606 |
dl |
1.5 |
* iterator iterates through all elements |
607 |
dl |
1.4 |
*/ |
608 |
|
|
public void testIterator() { |
609 |
dl |
1.3 |
DelayQueue q = populatedQueue(SIZE); |
610 |
dl |
1.1 |
int i = 0; |
611 |
jsr166 |
1.18 |
Iterator it = q.iterator(); |
612 |
jsr166 |
1.16 |
while (it.hasNext()) { |
613 |
dl |
1.1 |
assertTrue(q.contains(it.next())); |
614 |
|
|
++i; |
615 |
|
|
} |
616 |
dl |
1.3 |
assertEquals(i, SIZE); |
617 |
jsr166 |
1.68 |
assertIteratorExhausted(it); |
618 |
|
|
} |
619 |
|
|
|
620 |
|
|
/** |
621 |
|
|
* iterator of empty collection has no elements |
622 |
|
|
*/ |
623 |
|
|
public void testEmptyIterator() { |
624 |
|
|
assertIteratorExhausted(new DelayQueue().iterator()); |
625 |
dl |
1.1 |
} |
626 |
|
|
|
627 |
dl |
1.4 |
/** |
628 |
dl |
1.5 |
* iterator.remove removes current element |
629 |
dl |
1.4 |
*/ |
630 |
jsr166 |
1.31 |
public void testIteratorRemove() { |
631 |
dl |
1.1 |
final DelayQueue q = new DelayQueue(); |
632 |
|
|
q.add(new PDelay(2)); |
633 |
|
|
q.add(new PDelay(1)); |
634 |
|
|
q.add(new PDelay(3)); |
635 |
|
|
Iterator it = q.iterator(); |
636 |
|
|
it.next(); |
637 |
|
|
it.remove(); |
638 |
|
|
it = q.iterator(); |
639 |
jsr166 |
1.58 |
assertEquals(new PDelay(2), it.next()); |
640 |
|
|
assertEquals(new PDelay(3), it.next()); |
641 |
dl |
1.1 |
assertFalse(it.hasNext()); |
642 |
|
|
} |
643 |
|
|
|
644 |
dl |
1.4 |
/** |
645 |
dl |
1.5 |
* toString contains toStrings of elements |
646 |
dl |
1.4 |
*/ |
647 |
|
|
public void testToString() { |
648 |
dl |
1.3 |
DelayQueue q = populatedQueue(SIZE); |
649 |
dl |
1.1 |
String s = q.toString(); |
650 |
jsr166 |
1.55 |
for (Object e : q) |
651 |
|
|
assertTrue(s.contains(e.toString())); |
652 |
jsr166 |
1.15 |
} |
653 |
dl |
1.1 |
|
654 |
dl |
1.4 |
/** |
655 |
jsr166 |
1.50 |
* timed poll transfers elements across Executor tasks |
656 |
dl |
1.4 |
*/ |
657 |
dl |
1.1 |
public void testPollInExecutor() { |
658 |
|
|
final DelayQueue q = new DelayQueue(); |
659 |
jsr166 |
1.50 |
final CheckedBarrier threadsStarted = new CheckedBarrier(2); |
660 |
jsr166 |
1.75 |
final ExecutorService executor = Executors.newFixedThreadPool(2); |
661 |
|
|
try (PoolCleaner cleaner = cleaner(executor)) { |
662 |
|
|
executor.execute(new CheckedRunnable() { |
663 |
|
|
public void realRun() throws InterruptedException { |
664 |
|
|
assertNull(q.poll()); |
665 |
|
|
threadsStarted.await(); |
666 |
|
|
assertNotNull(q.poll(LONG_DELAY_MS, MILLISECONDS)); |
667 |
|
|
checkEmpty(q); |
668 |
|
|
}}); |
669 |
|
|
|
670 |
|
|
executor.execute(new CheckedRunnable() { |
671 |
|
|
public void realRun() throws InterruptedException { |
672 |
|
|
threadsStarted.await(); |
673 |
|
|
q.put(new PDelay(1)); |
674 |
|
|
}}); |
675 |
|
|
} |
676 |
dl |
1.1 |
} |
677 |
|
|
|
678 |
dl |
1.4 |
/** |
679 |
dl |
1.8 |
* Delayed actions do not occur until their delay elapses |
680 |
dl |
1.4 |
*/ |
681 |
jsr166 |
1.20 |
public void testDelay() throws InterruptedException { |
682 |
jsr166 |
1.37 |
DelayQueue<NanoDelay> q = new DelayQueue<NanoDelay>(); |
683 |
|
|
for (int i = 0; i < SIZE; ++i) |
684 |
|
|
q.add(new NanoDelay(1000000L * (SIZE - i))); |
685 |
dl |
1.1 |
|
686 |
jsr166 |
1.20 |
long last = 0; |
687 |
|
|
for (int i = 0; i < SIZE; ++i) { |
688 |
jsr166 |
1.37 |
NanoDelay e = q.take(); |
689 |
jsr166 |
1.20 |
long tt = e.getTriggerTime(); |
690 |
jsr166 |
1.37 |
assertTrue(System.nanoTime() - tt >= 0); |
691 |
jsr166 |
1.20 |
if (i != 0) |
692 |
|
|
assertTrue(tt >= last); |
693 |
|
|
last = tt; |
694 |
dl |
1.1 |
} |
695 |
jsr166 |
1.37 |
assertTrue(q.isEmpty()); |
696 |
dl |
1.1 |
} |
697 |
dl |
1.6 |
|
698 |
dl |
1.12 |
/** |
699 |
|
|
* peek of a non-empty queue returns non-null even if not expired |
700 |
|
|
*/ |
701 |
|
|
public void testPeekDelayed() { |
702 |
|
|
DelayQueue q = new DelayQueue(); |
703 |
|
|
q.add(new NanoDelay(Long.MAX_VALUE)); |
704 |
jsr166 |
1.33 |
assertNotNull(q.peek()); |
705 |
dl |
1.12 |
} |
706 |
|
|
|
707 |
|
|
/** |
708 |
|
|
* poll of a non-empty queue returns null if no expired elements. |
709 |
|
|
*/ |
710 |
|
|
public void testPollDelayed() { |
711 |
|
|
DelayQueue q = new DelayQueue(); |
712 |
|
|
q.add(new NanoDelay(Long.MAX_VALUE)); |
713 |
|
|
assertNull(q.poll()); |
714 |
|
|
} |
715 |
dl |
1.6 |
|
716 |
|
|
/** |
717 |
dl |
1.13 |
* timed poll of a non-empty queue returns null if no expired elements. |
718 |
|
|
*/ |
719 |
jsr166 |
1.20 |
public void testTimedPollDelayed() throws InterruptedException { |
720 |
dl |
1.13 |
DelayQueue q = new DelayQueue(); |
721 |
dl |
1.14 |
q.add(new NanoDelay(LONG_DELAY_MS * 1000000L)); |
722 |
jsr166 |
1.52 |
assertNull(q.poll(timeoutMillis(), MILLISECONDS)); |
723 |
dl |
1.13 |
} |
724 |
|
|
|
725 |
|
|
/** |
726 |
dl |
1.6 |
* drainTo(c) empties queue into another collection c |
727 |
jsr166 |
1.15 |
*/ |
728 |
dl |
1.6 |
public void testDrainTo() { |
729 |
dl |
1.11 |
DelayQueue q = new DelayQueue(); |
730 |
|
|
PDelay[] elems = new PDelay[SIZE]; |
731 |
|
|
for (int i = 0; i < SIZE; ++i) { |
732 |
|
|
elems[i] = new PDelay(i); |
733 |
|
|
q.add(elems[i]); |
734 |
|
|
} |
735 |
dl |
1.6 |
ArrayList l = new ArrayList(); |
736 |
|
|
q.drainTo(l); |
737 |
jsr166 |
1.57 |
assertEquals(0, q.size()); |
738 |
jsr166 |
1.15 |
for (int i = 0; i < SIZE; ++i) |
739 |
jsr166 |
1.58 |
assertEquals(elems[i], l.get(i)); |
740 |
dl |
1.11 |
q.add(elems[0]); |
741 |
|
|
q.add(elems[1]); |
742 |
|
|
assertFalse(q.isEmpty()); |
743 |
|
|
assertTrue(q.contains(elems[0])); |
744 |
|
|
assertTrue(q.contains(elems[1])); |
745 |
|
|
l.clear(); |
746 |
|
|
q.drainTo(l); |
747 |
jsr166 |
1.57 |
assertEquals(0, q.size()); |
748 |
|
|
assertEquals(2, l.size()); |
749 |
jsr166 |
1.15 |
for (int i = 0; i < 2; ++i) |
750 |
jsr166 |
1.58 |
assertEquals(elems[i], l.get(i)); |
751 |
dl |
1.6 |
} |
752 |
|
|
|
753 |
|
|
/** |
754 |
|
|
* drainTo empties queue |
755 |
jsr166 |
1.15 |
*/ |
756 |
jsr166 |
1.20 |
public void testDrainToWithActivePut() throws InterruptedException { |
757 |
dl |
1.6 |
final DelayQueue q = populatedQueue(SIZE); |
758 |
jsr166 |
1.20 |
Thread t = new Thread(new CheckedRunnable() { |
759 |
|
|
public void realRun() { |
760 |
jsr166 |
1.73 |
q.put(new PDelay(SIZE + 1)); |
761 |
jsr166 |
1.20 |
}}); |
762 |
|
|
|
763 |
|
|
t.start(); |
764 |
|
|
ArrayList l = new ArrayList(); |
765 |
|
|
q.drainTo(l); |
766 |
|
|
assertTrue(l.size() >= SIZE); |
767 |
|
|
t.join(); |
768 |
|
|
assertTrue(q.size() + l.size() >= SIZE); |
769 |
dl |
1.6 |
} |
770 |
|
|
|
771 |
|
|
/** |
772 |
jsr166 |
1.38 |
* drainTo(c, n) empties first min(n, size) elements of queue into c |
773 |
jsr166 |
1.15 |
*/ |
774 |
dl |
1.6 |
public void testDrainToN() { |
775 |
|
|
for (int i = 0; i < SIZE + 2; ++i) { |
776 |
|
|
DelayQueue q = populatedQueue(SIZE); |
777 |
|
|
ArrayList l = new ArrayList(); |
778 |
|
|
q.drainTo(l, i); |
779 |
jsr166 |
1.39 |
int k = (i < SIZE) ? i : SIZE; |
780 |
jsr166 |
1.73 |
assertEquals(SIZE - k, q.size()); |
781 |
jsr166 |
1.58 |
assertEquals(k, l.size()); |
782 |
dl |
1.6 |
} |
783 |
|
|
} |
784 |
|
|
|
785 |
jsr166 |
1.63 |
/** |
786 |
|
|
* remove(null), contains(null) always return false |
787 |
|
|
*/ |
788 |
|
|
public void testNeverContainsNull() { |
789 |
|
|
Collection<?> q = populatedQueue(SIZE); |
790 |
|
|
assertFalse(q.contains(null)); |
791 |
|
|
assertFalse(q.remove(null)); |
792 |
|
|
} |
793 |
dl |
1.1 |
} |