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/* |
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* 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 |
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* http://creativecommons.org/licenses/publicdomain |
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* http://creativecommons.org/publicdomain/zero/1.0/ |
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* Other contributors include Andrew Wright, Jeffrey Hayes, |
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* Pat Fisher, Mike Judd. |
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*/ |
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|
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import junit.framework.*; |
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import java.util.*; |
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import static java.util.concurrent.TimeUnit.MILLISECONDS; |
10 |
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import java.util.concurrent.*; |
10 |
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|
11 |
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import java.util.ArrayList; |
12 |
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import java.util.Arrays; |
13 |
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import java.util.Collection; |
14 |
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import java.util.Iterator; |
15 |
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import java.util.NoSuchElementException; |
16 |
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import java.util.concurrent.BlockingQueue; |
17 |
> |
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; |
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import java.util.concurrent.TimeUnit; |
23 |
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|
24 |
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import junit.framework.Test; |
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|
26 |
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public class DelayQueueTest extends JSR166TestCase { |
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|
28 |
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public static class Generic extends BlockingQueueTest { |
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protected BlockingQueue emptyCollection() { |
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return new DelayQueue(); |
31 |
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} |
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protected PDelay makeElement(int i) { |
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return new PDelay(i); |
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} |
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} |
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|
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public static void main(String[] args) { |
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junit.textui.TestRunner.run(suite()); |
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main(suite(), args); |
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} |
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|
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public static Test suite() { |
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return new TestSuite(DelayQueueTest.class); |
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class Implementation implements CollectionImplementation { |
43 |
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public Class<?> klazz() { return DelayQueue.class; } |
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public Collection emptyCollection() { return new DelayQueue(); } |
45 |
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public Object makeElement(int i) { return new PDelay(i); } |
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public boolean isConcurrent() { return true; } |
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public boolean permitsNulls() { return false; } |
48 |
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} |
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return newTestSuite(DelayQueueTest.class, |
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new Generic().testSuite(), |
51 |
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CollectionTest.testSuite(new Implementation())); |
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} |
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|
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private static final int NOCAP = Integer.MAX_VALUE; |
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|
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/** |
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* A delayed implementation for testing. |
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* Most tests use Pseudodelays, where delays are all elapsed |
58 |
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*/ |
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static class PDelay implements Delayed { |
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int pseudodelay; |
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PDelay(int i) { pseudodelay = Integer.MIN_VALUE + i; } |
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public int compareTo(PDelay y) { |
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int i = pseudodelay; |
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int j = y.pseudodelay; |
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if (i < j) return -1; |
37 |
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if (i > j) return 1; |
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return 0; |
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PDelay(int i) { pseudodelay = i; } |
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public int compareTo(PDelay other) { |
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int a = this.pseudodelay; |
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int b = other.pseudodelay; |
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return (a < b) ? -1 : (a > b) ? 1 : 0; |
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} |
40 |
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|
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public int compareTo(Delayed y) { |
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return compareTo((PDelay)y); |
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} |
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|
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public boolean equals(Object other) { |
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return equals((PDelay)other); |
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return (other instanceof PDelay) && |
72 |
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this.pseudodelay == ((PDelay)other).pseudodelay; |
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} |
74 |
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public boolean equals(PDelay other) { |
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return other.pseudodelay == pseudodelay; |
50 |
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} |
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|
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|
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// suppress [overrides] javac warning |
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public int hashCode() { return pseudodelay; } |
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public long getDelay(TimeUnit ignore) { |
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return pseudodelay; |
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return Integer.MIN_VALUE + pseudodelay; |
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} |
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public int intValue() { |
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return pseudodelay; |
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} |
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|
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public String toString() { |
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return String.valueOf(pseudodelay); |
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} |
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} |
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|
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|
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/** |
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* Delayed implementation that actually delays |
86 |
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*/ |
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} |
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|
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public boolean equals(Object other) { |
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return equals((NanoDelay)other); |
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} |
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public boolean equals(NanoDelay other) { |
90 |
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return other.trigger == trigger; |
105 |
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return (other instanceof NanoDelay) && |
106 |
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this.trigger == ((NanoDelay)other).trigger; |
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} |
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|
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// suppress [overrides] javac warning |
110 |
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public int hashCode() { return (int) trigger; } |
111 |
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|
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public long getDelay(TimeUnit unit) { |
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long n = trigger - System.nanoTime(); |
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return unit.convert(n, TimeUnit.NANOSECONDS); |
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} |
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} |
125 |
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|
107 |
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|
126 |
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/** |
127 |
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* Create a queue of given size containing consecutive |
128 |
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* PDelays 0 ... n. |
127 |
> |
* Returns a new queue of given size containing consecutive |
128 |
> |
* PDelays 0 ... n - 1. |
129 |
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*/ |
130 |
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private DelayQueue<PDelay> populatedQueue(int n) { |
131 |
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DelayQueue<PDelay> q = new DelayQueue<PDelay>(); |
132 |
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assertTrue(q.isEmpty()); |
133 |
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for (int i = n-1; i >= 0; i-=2) |
133 |
> |
for (int i = n - 1; i >= 0; i -= 2) |
134 |
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assertTrue(q.offer(new PDelay(i))); |
135 |
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for (int i = (n & 1); i < n; i+=2) |
135 |
> |
for (int i = (n & 1); i < n; i += 2) |
136 |
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assertTrue(q.offer(new PDelay(i))); |
137 |
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assertFalse(q.isEmpty()); |
138 |
< |
assertEquals(NOCAP, q.remainingCapacity()); |
138 |
> |
assertEquals(Integer.MAX_VALUE, q.remainingCapacity()); |
139 |
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assertEquals(n, q.size()); |
140 |
+ |
assertEquals(new PDelay(0), q.peek()); |
141 |
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return q; |
142 |
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} |
143 |
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|
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* A new queue has unbounded capacity |
146 |
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*/ |
147 |
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public void testConstructor1() { |
148 |
< |
assertEquals(NOCAP, new DelayQueue().remainingCapacity()); |
148 |
> |
assertEquals(Integer.MAX_VALUE, new DelayQueue().remainingCapacity()); |
149 |
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} |
150 |
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|
151 |
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/** |
153 |
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*/ |
154 |
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public void testConstructor3() { |
155 |
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try { |
156 |
< |
DelayQueue q = new DelayQueue(null); |
156 |
> |
new DelayQueue(null); |
157 |
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shouldThrow(); |
158 |
|
} catch (NullPointerException success) {} |
159 |
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} |
163 |
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*/ |
164 |
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public void testConstructor4() { |
165 |
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try { |
166 |
< |
PDelay[] ints = new PDelay[SIZE]; |
148 |
< |
DelayQueue q = new DelayQueue(Arrays.asList(ints)); |
166 |
> |
new DelayQueue(Arrays.asList(new PDelay[SIZE])); |
167 |
|
shouldThrow(); |
168 |
|
} catch (NullPointerException success) {} |
169 |
|
} |
172 |
|
* Initializing from Collection with some null elements throws NPE |
173 |
|
*/ |
174 |
|
public void testConstructor5() { |
175 |
+ |
PDelay[] a = new PDelay[SIZE]; |
176 |
+ |
for (int i = 0; i < SIZE - 1; ++i) |
177 |
+ |
a[i] = new PDelay(i); |
178 |
|
try { |
179 |
< |
PDelay[] ints = new PDelay[SIZE]; |
159 |
< |
for (int i = 0; i < SIZE-1; ++i) |
160 |
< |
ints[i] = new PDelay(i); |
161 |
< |
DelayQueue q = new DelayQueue(Arrays.asList(ints)); |
179 |
> |
new DelayQueue(Arrays.asList(a)); |
180 |
|
shouldThrow(); |
181 |
|
} catch (NullPointerException success) {} |
182 |
|
} |
199 |
|
public void testEmpty() { |
200 |
|
DelayQueue q = new DelayQueue(); |
201 |
|
assertTrue(q.isEmpty()); |
202 |
< |
assertEquals(NOCAP, q.remainingCapacity()); |
202 |
> |
assertEquals(Integer.MAX_VALUE, q.remainingCapacity()); |
203 |
|
q.add(new PDelay(1)); |
204 |
|
assertFalse(q.isEmpty()); |
205 |
|
q.add(new PDelay(2)); |
209 |
|
} |
210 |
|
|
211 |
|
/** |
212 |
< |
* remainingCapacity does not change when elements added or removed, |
195 |
< |
* but size does |
212 |
> |
* remainingCapacity() always returns Integer.MAX_VALUE |
213 |
|
*/ |
214 |
|
public void testRemainingCapacity() { |
215 |
< |
DelayQueue q = populatedQueue(SIZE); |
215 |
> |
BlockingQueue q = populatedQueue(SIZE); |
216 |
|
for (int i = 0; i < SIZE; ++i) { |
217 |
< |
assertEquals(NOCAP, q.remainingCapacity()); |
218 |
< |
assertEquals(SIZE-i, q.size()); |
219 |
< |
q.remove(); |
217 |
> |
assertEquals(Integer.MAX_VALUE, q.remainingCapacity()); |
218 |
> |
assertEquals(SIZE - i, q.size()); |
219 |
> |
assertTrue(q.remove() instanceof PDelay); |
220 |
|
} |
221 |
|
for (int i = 0; i < SIZE; ++i) { |
222 |
< |
assertEquals(NOCAP, q.remainingCapacity()); |
222 |
> |
assertEquals(Integer.MAX_VALUE, q.remainingCapacity()); |
223 |
|
assertEquals(i, q.size()); |
224 |
< |
q.add(new PDelay(i)); |
224 |
> |
assertTrue(q.add(new PDelay(i))); |
225 |
|
} |
226 |
|
} |
227 |
|
|
228 |
|
/** |
212 |
– |
* offer(null) throws NPE |
213 |
– |
*/ |
214 |
– |
public void testOfferNull() { |
215 |
– |
try { |
216 |
– |
DelayQueue q = new DelayQueue(); |
217 |
– |
q.offer(null); |
218 |
– |
shouldThrow(); |
219 |
– |
} catch (NullPointerException success) {} |
220 |
– |
} |
221 |
– |
|
222 |
– |
/** |
223 |
– |
* add(null) throws NPE |
224 |
– |
*/ |
225 |
– |
public void testAddNull() { |
226 |
– |
try { |
227 |
– |
DelayQueue q = new DelayQueue(); |
228 |
– |
q.add(null); |
229 |
– |
shouldThrow(); |
230 |
– |
} catch (NullPointerException success) {} |
231 |
– |
} |
232 |
– |
|
233 |
– |
/** |
229 |
|
* offer non-null succeeds |
230 |
|
*/ |
231 |
|
public void testOffer() { |
246 |
|
} |
247 |
|
|
248 |
|
/** |
254 |
– |
* addAll(null) throws NPE |
255 |
– |
*/ |
256 |
– |
public void testAddAll1() { |
257 |
– |
try { |
258 |
– |
DelayQueue q = new DelayQueue(); |
259 |
– |
q.addAll(null); |
260 |
– |
shouldThrow(); |
261 |
– |
} catch (NullPointerException success) {} |
262 |
– |
} |
263 |
– |
|
264 |
– |
|
265 |
– |
/** |
249 |
|
* addAll(this) throws IAE |
250 |
|
*/ |
251 |
|
public void testAddAllSelf() { |
252 |
+ |
DelayQueue q = populatedQueue(SIZE); |
253 |
|
try { |
270 |
– |
DelayQueue q = populatedQueue(SIZE); |
254 |
|
q.addAll(q); |
255 |
|
shouldThrow(); |
256 |
|
} catch (IllegalArgumentException success) {} |
257 |
|
} |
258 |
|
|
259 |
|
/** |
277 |
– |
* addAll of a collection with null elements throws NPE |
278 |
– |
*/ |
279 |
– |
public void testAddAll2() { |
280 |
– |
try { |
281 |
– |
DelayQueue q = new DelayQueue(); |
282 |
– |
PDelay[] ints = new PDelay[SIZE]; |
283 |
– |
q.addAll(Arrays.asList(ints)); |
284 |
– |
shouldThrow(); |
285 |
– |
} catch (NullPointerException success) {} |
286 |
– |
} |
287 |
– |
|
288 |
– |
/** |
260 |
|
* addAll of a collection with any null elements throws NPE after |
261 |
|
* possibly adding some elements |
262 |
|
*/ |
263 |
|
public void testAddAll3() { |
264 |
+ |
DelayQueue q = new DelayQueue(); |
265 |
+ |
PDelay[] a = new PDelay[SIZE]; |
266 |
+ |
for (int i = 0; i < SIZE - 1; ++i) |
267 |
+ |
a[i] = new PDelay(i); |
268 |
|
try { |
269 |
< |
DelayQueue q = new DelayQueue(); |
295 |
< |
PDelay[] ints = new PDelay[SIZE]; |
296 |
< |
for (int i = 0; i < SIZE-1; ++i) |
297 |
< |
ints[i] = new PDelay(i); |
298 |
< |
q.addAll(Arrays.asList(ints)); |
269 |
> |
q.addAll(Arrays.asList(a)); |
270 |
|
shouldThrow(); |
271 |
|
} catch (NullPointerException success) {} |
272 |
|
} |
277 |
|
public void testAddAll5() { |
278 |
|
PDelay[] empty = new PDelay[0]; |
279 |
|
PDelay[] ints = new PDelay[SIZE]; |
280 |
< |
for (int i = SIZE-1; i >= 0; --i) |
280 |
> |
for (int i = SIZE - 1; i >= 0; --i) |
281 |
|
ints[i] = new PDelay(i); |
282 |
|
DelayQueue q = new DelayQueue(); |
283 |
|
assertFalse(q.addAll(Arrays.asList(empty))); |
287 |
|
} |
288 |
|
|
289 |
|
/** |
319 |
– |
* put(null) throws NPE |
320 |
– |
*/ |
321 |
– |
public void testPutNull() { |
322 |
– |
try { |
323 |
– |
DelayQueue q = new DelayQueue(); |
324 |
– |
q.put(null); |
325 |
– |
shouldThrow(); |
326 |
– |
} catch (NullPointerException success) {} |
327 |
– |
} |
328 |
– |
|
329 |
– |
/** |
290 |
|
* all elements successfully put are contained |
291 |
|
*/ |
292 |
< |
public void testPut() { |
293 |
< |
DelayQueue q = new DelayQueue(); |
294 |
< |
for (int i = 0; i < SIZE; ++i) { |
295 |
< |
PDelay I = new PDelay(i); |
296 |
< |
q.put(I); |
297 |
< |
assertTrue(q.contains(I)); |
298 |
< |
} |
299 |
< |
assertEquals(SIZE, q.size()); |
292 |
> |
public void testPut() { |
293 |
> |
DelayQueue q = new DelayQueue(); |
294 |
> |
for (int i = 0; i < SIZE; ++i) { |
295 |
> |
PDelay x = new PDelay(i); |
296 |
> |
q.put(x); |
297 |
> |
assertTrue(q.contains(x)); |
298 |
> |
} |
299 |
> |
assertEquals(SIZE, q.size()); |
300 |
|
} |
301 |
|
|
302 |
|
/** |
304 |
|
*/ |
305 |
|
public void testPutWithTake() throws InterruptedException { |
306 |
|
final DelayQueue q = new DelayQueue(); |
307 |
< |
Thread t = new Thread(new CheckedRunnable() { |
307 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
308 |
|
public void realRun() { |
309 |
|
q.put(new PDelay(0)); |
310 |
|
q.put(new PDelay(0)); |
312 |
|
q.put(new PDelay(0)); |
313 |
|
}}); |
314 |
|
|
315 |
< |
t.start(); |
316 |
< |
Thread.sleep(SHORT_DELAY_MS); |
357 |
< |
q.take(); |
358 |
< |
t.interrupt(); |
359 |
< |
t.join(); |
315 |
> |
awaitTermination(t); |
316 |
> |
assertEquals(4, q.size()); |
317 |
|
} |
318 |
|
|
319 |
|
/** |
321 |
|
*/ |
322 |
|
public void testTimedOffer() throws InterruptedException { |
323 |
|
final DelayQueue q = new DelayQueue(); |
324 |
< |
Thread t = new Thread(new CheckedRunnable() { |
324 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
325 |
|
public void realRun() throws InterruptedException { |
326 |
|
q.put(new PDelay(0)); |
327 |
|
q.put(new PDelay(0)); |
329 |
|
assertTrue(q.offer(new PDelay(0), LONG_DELAY_MS, MILLISECONDS)); |
330 |
|
}}); |
331 |
|
|
332 |
< |
t.start(); |
376 |
< |
Thread.sleep(SMALL_DELAY_MS); |
377 |
< |
t.interrupt(); |
378 |
< |
t.join(); |
332 |
> |
awaitTermination(t); |
333 |
|
} |
334 |
|
|
335 |
|
/** |
338 |
|
public void testTake() throws InterruptedException { |
339 |
|
DelayQueue q = populatedQueue(SIZE); |
340 |
|
for (int i = 0; i < SIZE; ++i) { |
341 |
< |
assertEquals(new PDelay(i), ((PDelay)q.take())); |
341 |
> |
assertEquals(new PDelay(i), q.take()); |
342 |
|
} |
343 |
|
} |
344 |
|
|
345 |
|
/** |
392 |
– |
* take blocks interruptibly when empty |
393 |
– |
*/ |
394 |
– |
public void testTakeFromEmptyBlocksInterruptibly() |
395 |
– |
throws InterruptedException { |
396 |
– |
final BlockingQueue q = new DelayQueue(); |
397 |
– |
final CountDownLatch threadStarted = new CountDownLatch(1); |
398 |
– |
Thread t = newStartedThread(new CheckedRunnable() { |
399 |
– |
public void realRun() { |
400 |
– |
long t0 = System.nanoTime(); |
401 |
– |
threadStarted.countDown(); |
402 |
– |
try { |
403 |
– |
q.take(); |
404 |
– |
shouldThrow(); |
405 |
– |
} catch (InterruptedException success) {} |
406 |
– |
assertTrue(millisElapsedSince(t0) >= SHORT_DELAY_MS); |
407 |
– |
}}); |
408 |
– |
threadStarted.await(); |
409 |
– |
Thread.sleep(SHORT_DELAY_MS); |
410 |
– |
assertTrue(t.isAlive()); |
411 |
– |
t.interrupt(); |
412 |
– |
awaitTermination(t, MEDIUM_DELAY_MS); |
413 |
– |
assertFalse(t.isAlive()); |
414 |
– |
} |
415 |
– |
|
416 |
– |
/** |
346 |
|
* Take removes existing elements until empty, then blocks interruptibly |
347 |
|
*/ |
348 |
|
public void testBlockingTake() throws InterruptedException { |
349 |
|
final DelayQueue q = populatedQueue(SIZE); |
350 |
< |
Thread t = new Thread(new CheckedRunnable() { |
350 |
> |
final CountDownLatch pleaseInterrupt = new CountDownLatch(1); |
351 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
352 |
|
public void realRun() throws InterruptedException { |
353 |
|
for (int i = 0; i < SIZE; ++i) { |
354 |
|
assertEquals(new PDelay(i), ((PDelay)q.take())); |
355 |
|
} |
356 |
+ |
|
357 |
+ |
Thread.currentThread().interrupt(); |
358 |
+ |
try { |
359 |
+ |
q.take(); |
360 |
+ |
shouldThrow(); |
361 |
+ |
} catch (InterruptedException success) {} |
362 |
+ |
assertFalse(Thread.interrupted()); |
363 |
+ |
|
364 |
+ |
pleaseInterrupt.countDown(); |
365 |
|
try { |
366 |
|
q.take(); |
367 |
|
shouldThrow(); |
368 |
|
} catch (InterruptedException success) {} |
369 |
+ |
assertFalse(Thread.interrupted()); |
370 |
|
}}); |
371 |
|
|
372 |
< |
t.start(); |
373 |
< |
Thread.sleep(SHORT_DELAY_MS); |
372 |
> |
await(pleaseInterrupt); |
373 |
> |
assertThreadStaysAlive(t); |
374 |
|
t.interrupt(); |
375 |
< |
t.join(); |
375 |
> |
awaitTermination(t); |
376 |
|
} |
377 |
|
|
438 |
– |
|
378 |
|
/** |
379 |
|
* poll succeeds unless empty |
380 |
|
*/ |
381 |
|
public void testPoll() { |
382 |
|
DelayQueue q = populatedQueue(SIZE); |
383 |
|
for (int i = 0; i < SIZE; ++i) { |
384 |
< |
assertEquals(new PDelay(i), ((PDelay)q.poll())); |
384 |
> |
assertEquals(new PDelay(i), q.poll()); |
385 |
|
} |
386 |
|
assertNull(q.poll()); |
387 |
|
} |
392 |
|
public void testTimedPoll0() throws InterruptedException { |
393 |
|
DelayQueue q = populatedQueue(SIZE); |
394 |
|
for (int i = 0; i < SIZE; ++i) { |
395 |
< |
assertEquals(new PDelay(i), ((PDelay)q.poll(0, MILLISECONDS))); |
395 |
> |
assertEquals(new PDelay(i), q.poll(0, MILLISECONDS)); |
396 |
|
} |
397 |
|
assertNull(q.poll(0, MILLISECONDS)); |
398 |
|
} |
403 |
|
public void testTimedPoll() throws InterruptedException { |
404 |
|
DelayQueue q = populatedQueue(SIZE); |
405 |
|
for (int i = 0; i < SIZE; ++i) { |
406 |
< |
assertEquals(new PDelay(i), ((PDelay)q.poll(SHORT_DELAY_MS, MILLISECONDS))); |
407 |
< |
} |
408 |
< |
assertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS)); |
406 |
> |
long startTime = System.nanoTime(); |
407 |
> |
assertEquals(new PDelay(i), q.poll(LONG_DELAY_MS, MILLISECONDS)); |
408 |
> |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
409 |
> |
} |
410 |
> |
long startTime = System.nanoTime(); |
411 |
> |
assertNull(q.poll(timeoutMillis(), MILLISECONDS)); |
412 |
> |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
413 |
> |
checkEmpty(q); |
414 |
|
} |
415 |
|
|
416 |
|
/** |
418 |
|
* returning timeout status |
419 |
|
*/ |
420 |
|
public void testInterruptedTimedPoll() throws InterruptedException { |
421 |
< |
Thread t = new Thread(new CheckedRunnable() { |
421 |
> |
final CountDownLatch pleaseInterrupt = new CountDownLatch(1); |
422 |
> |
final DelayQueue q = populatedQueue(SIZE); |
423 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
424 |
|
public void realRun() throws InterruptedException { |
425 |
< |
DelayQueue q = populatedQueue(SIZE); |
425 |
> |
long startTime = System.nanoTime(); |
426 |
|
for (int i = 0; i < SIZE; ++i) { |
427 |
< |
assertEquals(new PDelay(i), ((PDelay)q.poll(SHORT_DELAY_MS, MILLISECONDS))); |
427 |
> |
assertEquals(new PDelay(i), |
428 |
> |
((PDelay)q.poll(LONG_DELAY_MS, MILLISECONDS))); |
429 |
|
} |
483 |
– |
try { |
484 |
– |
q.poll(SMALL_DELAY_MS, MILLISECONDS); |
485 |
– |
shouldThrow(); |
486 |
– |
} catch (InterruptedException success) {} |
487 |
– |
}}); |
488 |
– |
|
489 |
– |
t.start(); |
490 |
– |
Thread.sleep(SHORT_DELAY_MS); |
491 |
– |
t.interrupt(); |
492 |
– |
t.join(); |
493 |
– |
} |
494 |
– |
|
495 |
– |
/** |
496 |
– |
* timed poll before a delayed offer fails; after offer succeeds; |
497 |
– |
* on interruption throws |
498 |
– |
*/ |
499 |
– |
public void testTimedPollWithOffer() throws InterruptedException { |
500 |
– |
final DelayQueue q = new DelayQueue(); |
501 |
– |
final PDelay pdelay = new PDelay(0); |
502 |
– |
final CheckedBarrier barrier = new CheckedBarrier(2); |
503 |
– |
Thread t = new Thread(new CheckedRunnable() { |
504 |
– |
public void realRun() throws InterruptedException { |
505 |
– |
assertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS)); |
506 |
– |
|
507 |
– |
barrier.await(); |
508 |
– |
assertSame(pdelay, q.poll(MEDIUM_DELAY_MS, MILLISECONDS)); |
430 |
|
|
431 |
|
Thread.currentThread().interrupt(); |
432 |
|
try { |
433 |
< |
q.poll(SHORT_DELAY_MS, MILLISECONDS); |
433 |
> |
q.poll(LONG_DELAY_MS, MILLISECONDS); |
434 |
|
shouldThrow(); |
435 |
|
} catch (InterruptedException success) {} |
436 |
+ |
assertFalse(Thread.interrupted()); |
437 |
|
|
438 |
< |
barrier.await(); |
438 |
> |
pleaseInterrupt.countDown(); |
439 |
|
try { |
440 |
< |
q.poll(MEDIUM_DELAY_MS, MILLISECONDS); |
440 |
> |
q.poll(LONG_DELAY_MS, MILLISECONDS); |
441 |
|
shouldThrow(); |
442 |
|
} catch (InterruptedException success) {} |
443 |
+ |
assertFalse(Thread.interrupted()); |
444 |
+ |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
445 |
|
}}); |
446 |
|
|
447 |
< |
t.start(); |
448 |
< |
barrier.await(); |
525 |
< |
assertTrue(q.offer(pdelay, SHORT_DELAY_MS, MILLISECONDS)); |
526 |
< |
barrier.await(); |
527 |
< |
sleep(SHORT_DELAY_MS); |
447 |
> |
await(pleaseInterrupt); |
448 |
> |
assertThreadStaysAlive(t); |
449 |
|
t.interrupt(); |
450 |
< |
t.join(); |
450 |
> |
awaitTermination(t); |
451 |
> |
checkEmpty(q); |
452 |
|
} |
453 |
|
|
532 |
– |
|
454 |
|
/** |
455 |
|
* peek returns next element, or null if empty |
456 |
|
*/ |
457 |
|
public void testPeek() { |
458 |
|
DelayQueue q = populatedQueue(SIZE); |
459 |
|
for (int i = 0; i < SIZE; ++i) { |
460 |
< |
assertEquals(new PDelay(i), ((PDelay)q.peek())); |
461 |
< |
assertEquals(new PDelay(i), ((PDelay)q.poll())); |
460 |
> |
assertEquals(new PDelay(i), q.peek()); |
461 |
> |
assertEquals(new PDelay(i), q.poll()); |
462 |
|
if (q.isEmpty()) |
463 |
|
assertNull(q.peek()); |
464 |
|
else |
473 |
|
public void testElement() { |
474 |
|
DelayQueue q = populatedQueue(SIZE); |
475 |
|
for (int i = 0; i < SIZE; ++i) { |
476 |
< |
assertEquals(new PDelay(i), ((PDelay)q.element())); |
476 |
> |
assertEquals(new PDelay(i), q.element()); |
477 |
|
q.poll(); |
478 |
|
} |
479 |
|
try { |
488 |
|
public void testRemove() { |
489 |
|
DelayQueue q = populatedQueue(SIZE); |
490 |
|
for (int i = 0; i < SIZE; ++i) { |
491 |
< |
assertEquals(new PDelay(i), ((PDelay)q.remove())); |
491 |
> |
assertEquals(new PDelay(i), q.remove()); |
492 |
|
} |
493 |
|
try { |
494 |
|
q.remove(); |
497 |
|
} |
498 |
|
|
499 |
|
/** |
579 |
– |
* remove(x) removes x and returns true if present |
580 |
– |
*/ |
581 |
– |
public void testRemoveElement() { |
582 |
– |
DelayQueue q = populatedQueue(SIZE); |
583 |
– |
for (int i = 1; i < SIZE; i+=2) { |
584 |
– |
assertTrue(q.remove(new PDelay(i))); |
585 |
– |
} |
586 |
– |
for (int i = 0; i < SIZE; i+=2) { |
587 |
– |
assertTrue(q.remove(new PDelay(i))); |
588 |
– |
assertFalse(q.remove(new PDelay(i+1))); |
589 |
– |
} |
590 |
– |
assertTrue(q.isEmpty()); |
591 |
– |
} |
592 |
– |
|
593 |
– |
/** |
500 |
|
* contains(x) reports true when elements added but not yet removed |
501 |
|
*/ |
502 |
|
public void testContains() { |
516 |
|
q.clear(); |
517 |
|
assertTrue(q.isEmpty()); |
518 |
|
assertEquals(0, q.size()); |
519 |
< |
assertEquals(NOCAP, q.remainingCapacity()); |
519 |
> |
assertEquals(Integer.MAX_VALUE, q.remainingCapacity()); |
520 |
|
PDelay x = new PDelay(1); |
521 |
|
q.add(x); |
522 |
|
assertFalse(q.isEmpty()); |
553 |
|
assertTrue(changed); |
554 |
|
|
555 |
|
assertTrue(q.containsAll(p)); |
556 |
< |
assertEquals(SIZE-i, q.size()); |
556 |
> |
assertEquals(SIZE - i, q.size()); |
557 |
|
p.remove(); |
558 |
|
} |
559 |
|
} |
566 |
|
DelayQueue q = populatedQueue(SIZE); |
567 |
|
DelayQueue p = populatedQueue(i); |
568 |
|
assertTrue(q.removeAll(p)); |
569 |
< |
assertEquals(SIZE-i, q.size()); |
569 |
> |
assertEquals(SIZE - i, q.size()); |
570 |
|
for (int j = 0; j < i; ++j) { |
571 |
< |
PDelay I = (PDelay)(p.remove()); |
572 |
< |
assertFalse(q.contains(I)); |
571 |
> |
PDelay x = (PDelay)(p.remove()); |
572 |
> |
assertFalse(q.contains(x)); |
573 |
|
} |
574 |
|
} |
575 |
|
} |
598 |
|
assertSame(ints[i], q.remove()); |
599 |
|
} |
600 |
|
|
695 |
– |
|
696 |
– |
/** |
697 |
– |
* toArray(null) throws NullPointerException |
698 |
– |
*/ |
699 |
– |
public void testToArray_NullArg() { |
700 |
– |
DelayQueue q = populatedQueue(SIZE); |
701 |
– |
try { |
702 |
– |
q.toArray(null); |
703 |
– |
shouldThrow(); |
704 |
– |
} catch (NullPointerException success) {} |
705 |
– |
} |
706 |
– |
|
601 |
|
/** |
602 |
|
* toArray(incompatible array type) throws ArrayStoreException |
603 |
|
*/ |
621 |
|
++i; |
622 |
|
} |
623 |
|
assertEquals(i, SIZE); |
624 |
+ |
assertIteratorExhausted(it); |
625 |
+ |
} |
626 |
+ |
|
627 |
+ |
/** |
628 |
+ |
* iterator of empty collection has no elements |
629 |
+ |
*/ |
630 |
+ |
public void testEmptyIterator() { |
631 |
+ |
assertIteratorExhausted(new DelayQueue().iterator()); |
632 |
|
} |
633 |
|
|
634 |
|
/** |
643 |
|
it.next(); |
644 |
|
it.remove(); |
645 |
|
it = q.iterator(); |
646 |
< |
assertEquals(it.next(), new PDelay(2)); |
647 |
< |
assertEquals(it.next(), new PDelay(3)); |
646 |
> |
assertEquals(new PDelay(2), it.next()); |
647 |
> |
assertEquals(new PDelay(3), it.next()); |
648 |
|
assertFalse(it.hasNext()); |
649 |
|
} |
650 |
|
|
749 |
– |
|
651 |
|
/** |
652 |
|
* toString contains toStrings of elements |
653 |
|
*/ |
654 |
|
public void testToString() { |
655 |
|
DelayQueue q = populatedQueue(SIZE); |
656 |
|
String s = q.toString(); |
657 |
< |
for (int i = 0; i < SIZE; ++i) { |
658 |
< |
assertTrue(s.indexOf(String.valueOf(Integer.MIN_VALUE+i)) >= 0); |
758 |
< |
} |
657 |
> |
for (Object e : q) |
658 |
> |
assertTrue(s.contains(e.toString())); |
659 |
|
} |
660 |
|
|
661 |
|
/** |
662 |
< |
* offer transfers elements across Executor tasks |
662 |
> |
* timed poll transfers elements across Executor tasks |
663 |
|
*/ |
664 |
|
public void testPollInExecutor() { |
665 |
|
final DelayQueue q = new DelayQueue(); |
666 |
< |
ExecutorService executor = Executors.newFixedThreadPool(2); |
667 |
< |
executor.execute(new CheckedRunnable() { |
668 |
< |
public void realRun() throws InterruptedException { |
669 |
< |
assertNull(q.poll()); |
670 |
< |
assertTrue(null != q.poll(MEDIUM_DELAY_MS, MILLISECONDS)); |
671 |
< |
assertTrue(q.isEmpty()); |
672 |
< |
}}); |
673 |
< |
|
674 |
< |
executor.execute(new CheckedRunnable() { |
675 |
< |
public void realRun() throws InterruptedException { |
676 |
< |
Thread.sleep(SHORT_DELAY_MS); |
677 |
< |
q.put(new PDelay(1)); |
678 |
< |
}}); |
679 |
< |
|
680 |
< |
joinPool(executor); |
666 |
> |
final CheckedBarrier threadsStarted = new CheckedBarrier(2); |
667 |
> |
final ExecutorService executor = Executors.newFixedThreadPool(2); |
668 |
> |
try (PoolCleaner cleaner = cleaner(executor)) { |
669 |
> |
executor.execute(new CheckedRunnable() { |
670 |
> |
public void realRun() throws InterruptedException { |
671 |
> |
assertNull(q.poll()); |
672 |
> |
threadsStarted.await(); |
673 |
> |
assertNotNull(q.poll(LONG_DELAY_MS, MILLISECONDS)); |
674 |
> |
checkEmpty(q); |
675 |
> |
}}); |
676 |
> |
|
677 |
> |
executor.execute(new CheckedRunnable() { |
678 |
> |
public void realRun() throws InterruptedException { |
679 |
> |
threadsStarted.await(); |
680 |
> |
q.put(new PDelay(1)); |
681 |
> |
}}); |
682 |
> |
} |
683 |
|
} |
684 |
|
|
783 |
– |
|
685 |
|
/** |
686 |
|
* Delayed actions do not occur until their delay elapses |
687 |
|
*/ |
711 |
|
assertNotNull(q.peek()); |
712 |
|
} |
713 |
|
|
813 |
– |
|
714 |
|
/** |
715 |
|
* poll of a non-empty queue returns null if no expired elements. |
716 |
|
*/ |
726 |
|
public void testTimedPollDelayed() throws InterruptedException { |
727 |
|
DelayQueue q = new DelayQueue(); |
728 |
|
q.add(new NanoDelay(LONG_DELAY_MS * 1000000L)); |
729 |
< |
assertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS)); |
830 |
< |
} |
831 |
< |
|
832 |
< |
/** |
833 |
< |
* drainTo(null) throws NPE |
834 |
< |
*/ |
835 |
< |
public void testDrainToNull() { |
836 |
< |
DelayQueue q = populatedQueue(SIZE); |
837 |
< |
try { |
838 |
< |
q.drainTo(null); |
839 |
< |
shouldThrow(); |
840 |
< |
} catch (NullPointerException success) {} |
841 |
< |
} |
842 |
< |
|
843 |
< |
/** |
844 |
< |
* drainTo(this) throws IAE |
845 |
< |
*/ |
846 |
< |
public void testDrainToSelf() { |
847 |
< |
DelayQueue q = populatedQueue(SIZE); |
848 |
< |
try { |
849 |
< |
q.drainTo(q); |
850 |
< |
shouldThrow(); |
851 |
< |
} catch (IllegalArgumentException success) {} |
729 |
> |
assertNull(q.poll(timeoutMillis(), MILLISECONDS)); |
730 |
|
} |
731 |
|
|
732 |
|
/** |
741 |
|
} |
742 |
|
ArrayList l = new ArrayList(); |
743 |
|
q.drainTo(l); |
744 |
< |
assertEquals(q.size(), 0); |
744 |
> |
assertEquals(0, q.size()); |
745 |
|
for (int i = 0; i < SIZE; ++i) |
746 |
< |
assertEquals(l.get(i), elems[i]); |
746 |
> |
assertEquals(elems[i], l.get(i)); |
747 |
|
q.add(elems[0]); |
748 |
|
q.add(elems[1]); |
749 |
|
assertFalse(q.isEmpty()); |
751 |
|
assertTrue(q.contains(elems[1])); |
752 |
|
l.clear(); |
753 |
|
q.drainTo(l); |
754 |
< |
assertEquals(q.size(), 0); |
755 |
< |
assertEquals(l.size(), 2); |
754 |
> |
assertEquals(0, q.size()); |
755 |
> |
assertEquals(2, l.size()); |
756 |
|
for (int i = 0; i < 2; ++i) |
757 |
< |
assertEquals(l.get(i), elems[i]); |
757 |
> |
assertEquals(elems[i], l.get(i)); |
758 |
|
} |
759 |
|
|
760 |
|
/** |
764 |
|
final DelayQueue q = populatedQueue(SIZE); |
765 |
|
Thread t = new Thread(new CheckedRunnable() { |
766 |
|
public void realRun() { |
767 |
< |
q.put(new PDelay(SIZE+1)); |
767 |
> |
q.put(new PDelay(SIZE + 1)); |
768 |
|
}}); |
769 |
|
|
770 |
|
t.start(); |
776 |
|
} |
777 |
|
|
778 |
|
/** |
901 |
– |
* drainTo(null, n) throws NPE |
902 |
– |
*/ |
903 |
– |
public void testDrainToNullN() { |
904 |
– |
DelayQueue q = populatedQueue(SIZE); |
905 |
– |
try { |
906 |
– |
q.drainTo(null, 0); |
907 |
– |
shouldThrow(); |
908 |
– |
} catch (NullPointerException success) {} |
909 |
– |
} |
910 |
– |
|
911 |
– |
/** |
912 |
– |
* drainTo(this, n) throws IAE |
913 |
– |
*/ |
914 |
– |
public void testDrainToSelfN() { |
915 |
– |
DelayQueue q = populatedQueue(SIZE); |
916 |
– |
try { |
917 |
– |
q.drainTo(q, 0); |
918 |
– |
shouldThrow(); |
919 |
– |
} catch (IllegalArgumentException success) {} |
920 |
– |
} |
921 |
– |
|
922 |
– |
/** |
779 |
|
* drainTo(c, n) empties first min(n, size) elements of queue into c |
780 |
|
*/ |
781 |
|
public void testDrainToN() { |
784 |
|
ArrayList l = new ArrayList(); |
785 |
|
q.drainTo(l, i); |
786 |
|
int k = (i < SIZE) ? i : SIZE; |
787 |
< |
assertEquals(q.size(), SIZE-k); |
788 |
< |
assertEquals(l.size(), k); |
787 |
> |
assertEquals(SIZE - k, q.size()); |
788 |
> |
assertEquals(k, l.size()); |
789 |
|
} |
790 |
|
} |
791 |
|
|
792 |
< |
|
792 |
> |
/** |
793 |
> |
* remove(null), contains(null) always return false |
794 |
> |
*/ |
795 |
> |
public void testNeverContainsNull() { |
796 |
> |
Collection<?> q = populatedQueue(SIZE); |
797 |
> |
assertFalse(q.contains(null)); |
798 |
> |
assertFalse(q.remove(null)); |
799 |
> |
} |
800 |
|
} |