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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; |
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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 |
> |
import java.util.NoSuchElementException; |
16 |
> |
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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|
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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(); |
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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 { |
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public Class<?> klazz() { return DelayQueue.class; } |
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public Collection emptyCollection() { return new DelayQueue(); } |
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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; } |
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} |
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return newTestSuite(DelayQueueTest.class, |
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new Generic().testSuite(), |
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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 |
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* A fake Delayed implementation for testing. |
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* Most tests use PDelays, where delays are all elapsed |
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* (so, no blocking solely for delays) but are still ordered |
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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; } |
33 |
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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; |
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if (i > j) return 1; |
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return 0; |
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} |
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|
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final int pseudodelay; |
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PDelay(int pseudodelay) { this.pseudodelay = pseudodelay; } |
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public int compareTo(Delayed y) { |
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return compareTo((PDelay)y); |
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return Integer.compare(this.pseudodelay, ((PDelay)y).pseudodelay); |
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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); |
67 |
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} |
48 |
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public boolean equals(PDelay other) { |
49 |
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return other.pseudodelay == pseudodelay; |
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return (other instanceof PDelay) && |
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this.pseudodelay == ((PDelay)other).pseudodelay; |
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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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} |
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public int intValue() { |
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return pseudodelay; |
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return Integer.MIN_VALUE + 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 |
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*/ |
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static class NanoDelay implements Delayed { |
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long trigger; |
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final long trigger; |
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NanoDelay(long i) { |
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trigger = System.nanoTime() + i; |
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} |
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public int compareTo(NanoDelay y) { |
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long i = trigger; |
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long j = y.trigger; |
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if (i < j) return -1; |
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if (i > j) return 1; |
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return 0; |
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} |
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|
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public int compareTo(Delayed y) { |
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return compareTo((NanoDelay)y); |
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return Long.compare(trigger, ((NanoDelay)y).trigger); |
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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) { |
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return other.trigger == trigger; |
93 |
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return (other instanceof NanoDelay) && |
94 |
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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 |
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public int hashCode() { return (int) trigger; } |
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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); |
111 |
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} |
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} |
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|
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|
114 |
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/** |
115 |
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* Create a queue of given size containing consecutive |
116 |
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* PDelays 0 ... n. |
115 |
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* Returns a new queue of given size containing consecutive |
116 |
> |
* PDelays 0 ... n - 1. |
117 |
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*/ |
118 |
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private DelayQueue populatedQueue(int n) { |
119 |
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DelayQueue q = new DelayQueue(); |
118 |
> |
private static DelayQueue<PDelay> populatedQueue(int n) { |
119 |
> |
DelayQueue<PDelay> q = new DelayQueue<>(); |
120 |
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assertTrue(q.isEmpty()); |
121 |
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for (int i = n-1; i >= 0; i-=2) |
121 |
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for (int i = n - 1; i >= 0; i -= 2) |
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assertTrue(q.offer(new PDelay(i))); |
123 |
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for (int i = (n & 1); i < n; i+=2) |
123 |
> |
for (int i = (n & 1); i < n; i += 2) |
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assertTrue(q.offer(new PDelay(i))); |
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assertFalse(q.isEmpty()); |
126 |
< |
assertEquals(NOCAP, q.remainingCapacity()); |
126 |
> |
assertEquals(Integer.MAX_VALUE, q.remainingCapacity()); |
127 |
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assertEquals(n, q.size()); |
128 |
+ |
assertEquals(new PDelay(0), q.peek()); |
129 |
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return q; |
130 |
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} |
131 |
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|
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* A new queue has unbounded capacity |
134 |
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*/ |
135 |
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public void testConstructor1() { |
136 |
< |
assertEquals(NOCAP, new DelayQueue().remainingCapacity()); |
136 |
> |
assertEquals(Integer.MAX_VALUE, new DelayQueue().remainingCapacity()); |
137 |
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} |
138 |
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|
139 |
|
/** |
141 |
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*/ |
142 |
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public void testConstructor3() { |
143 |
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try { |
144 |
< |
DelayQueue q = new DelayQueue(null); |
144 |
> |
new DelayQueue(null); |
145 |
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shouldThrow(); |
146 |
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} catch (NullPointerException success) {} |
147 |
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} |
151 |
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*/ |
152 |
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public void testConstructor4() { |
153 |
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try { |
154 |
< |
PDelay[] ints = new PDelay[SIZE]; |
148 |
< |
DelayQueue q = new DelayQueue(Arrays.asList(ints)); |
154 |
> |
new DelayQueue(Arrays.asList(new PDelay[SIZE])); |
155 |
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shouldThrow(); |
156 |
|
} catch (NullPointerException success) {} |
157 |
|
} |
160 |
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* Initializing from Collection with some null elements throws NPE |
161 |
|
*/ |
162 |
|
public void testConstructor5() { |
163 |
+ |
PDelay[] a = new PDelay[SIZE]; |
164 |
+ |
for (int i = 0; i < SIZE - 1; ++i) |
165 |
+ |
a[i] = new PDelay(i); |
166 |
|
try { |
167 |
< |
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)); |
167 |
> |
new DelayQueue(Arrays.asList(a)); |
168 |
|
shouldThrow(); |
169 |
|
} catch (NullPointerException success) {} |
170 |
|
} |
187 |
|
public void testEmpty() { |
188 |
|
DelayQueue q = new DelayQueue(); |
189 |
|
assertTrue(q.isEmpty()); |
190 |
< |
assertEquals(NOCAP, q.remainingCapacity()); |
190 |
> |
assertEquals(Integer.MAX_VALUE, q.remainingCapacity()); |
191 |
|
q.add(new PDelay(1)); |
192 |
|
assertFalse(q.isEmpty()); |
193 |
|
q.add(new PDelay(2)); |
197 |
|
} |
198 |
|
|
199 |
|
/** |
200 |
< |
* remainingCapacity does not change when elements added or removed, |
195 |
< |
* but size does |
200 |
> |
* remainingCapacity() always returns Integer.MAX_VALUE |
201 |
|
*/ |
202 |
|
public void testRemainingCapacity() { |
203 |
< |
DelayQueue q = populatedQueue(SIZE); |
203 |
> |
BlockingQueue q = populatedQueue(SIZE); |
204 |
|
for (int i = 0; i < SIZE; ++i) { |
205 |
< |
assertEquals(NOCAP, q.remainingCapacity()); |
206 |
< |
assertEquals(SIZE-i, q.size()); |
207 |
< |
q.remove(); |
205 |
> |
assertEquals(Integer.MAX_VALUE, q.remainingCapacity()); |
206 |
> |
assertEquals(SIZE - i, q.size()); |
207 |
> |
assertTrue(q.remove() instanceof PDelay); |
208 |
|
} |
209 |
|
for (int i = 0; i < SIZE; ++i) { |
210 |
< |
assertEquals(NOCAP, q.remainingCapacity()); |
210 |
> |
assertEquals(Integer.MAX_VALUE, q.remainingCapacity()); |
211 |
|
assertEquals(i, q.size()); |
212 |
< |
q.add(new PDelay(i)); |
212 |
> |
assertTrue(q.add(new PDelay(i))); |
213 |
|
} |
214 |
|
} |
215 |
|
|
216 |
|
/** |
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 |
– |
/** |
217 |
|
* offer non-null succeeds |
218 |
|
*/ |
219 |
|
public void testOffer() { |
234 |
|
} |
235 |
|
|
236 |
|
/** |
237 |
< |
* 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 |
< |
/** |
266 |
< |
* addAll(this) throws IAE |
237 |
> |
* addAll(this) throws IllegalArgumentException |
238 |
|
*/ |
239 |
|
public void testAddAllSelf() { |
240 |
+ |
DelayQueue q = populatedQueue(SIZE); |
241 |
|
try { |
270 |
– |
DelayQueue q = populatedQueue(SIZE); |
242 |
|
q.addAll(q); |
243 |
|
shouldThrow(); |
244 |
|
} catch (IllegalArgumentException success) {} |
245 |
|
} |
246 |
|
|
247 |
|
/** |
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 |
– |
/** |
248 |
|
* addAll of a collection with any null elements throws NPE after |
249 |
|
* possibly adding some elements |
250 |
|
*/ |
251 |
|
public void testAddAll3() { |
252 |
+ |
DelayQueue q = new DelayQueue(); |
253 |
+ |
PDelay[] a = new PDelay[SIZE]; |
254 |
+ |
for (int i = 0; i < SIZE - 1; ++i) |
255 |
+ |
a[i] = new PDelay(i); |
256 |
|
try { |
257 |
< |
DelayQueue q = new DelayQueue(); |
294 |
< |
PDelay[] ints = new PDelay[SIZE]; |
295 |
< |
for (int i = 0; i < SIZE-1; ++i) |
296 |
< |
ints[i] = new PDelay(i); |
297 |
< |
q.addAll(Arrays.asList(ints)); |
257 |
> |
q.addAll(Arrays.asList(a)); |
258 |
|
shouldThrow(); |
259 |
|
} catch (NullPointerException success) {} |
260 |
|
} |
265 |
|
public void testAddAll5() { |
266 |
|
PDelay[] empty = new PDelay[0]; |
267 |
|
PDelay[] ints = new PDelay[SIZE]; |
268 |
< |
for (int i = SIZE-1; i >= 0; --i) |
268 |
> |
for (int i = SIZE - 1; i >= 0; --i) |
269 |
|
ints[i] = new PDelay(i); |
270 |
|
DelayQueue q = new DelayQueue(); |
271 |
|
assertFalse(q.addAll(Arrays.asList(empty))); |
275 |
|
} |
276 |
|
|
277 |
|
/** |
318 |
– |
* put(null) throws NPE |
319 |
– |
*/ |
320 |
– |
public void testPutNull() { |
321 |
– |
try { |
322 |
– |
DelayQueue q = new DelayQueue(); |
323 |
– |
q.put(null); |
324 |
– |
shouldThrow(); |
325 |
– |
} catch (NullPointerException success) {} |
326 |
– |
} |
327 |
– |
|
328 |
– |
/** |
278 |
|
* all elements successfully put are contained |
279 |
|
*/ |
280 |
< |
public void testPut() { |
281 |
< |
DelayQueue q = new DelayQueue(); |
282 |
< |
for (int i = 0; i < SIZE; ++i) { |
283 |
< |
PDelay I = new PDelay(i); |
284 |
< |
q.put(I); |
285 |
< |
assertTrue(q.contains(I)); |
286 |
< |
} |
287 |
< |
assertEquals(SIZE, q.size()); |
280 |
> |
public void testPut() { |
281 |
> |
DelayQueue q = new DelayQueue(); |
282 |
> |
for (int i = 0; i < SIZE; ++i) { |
283 |
> |
PDelay x = new PDelay(i); |
284 |
> |
q.put(x); |
285 |
> |
assertTrue(q.contains(x)); |
286 |
> |
} |
287 |
> |
assertEquals(SIZE, q.size()); |
288 |
|
} |
289 |
|
|
290 |
|
/** |
292 |
|
*/ |
293 |
|
public void testPutWithTake() throws InterruptedException { |
294 |
|
final DelayQueue q = new DelayQueue(); |
295 |
< |
Thread t = new Thread(new CheckedRunnable() { |
295 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
296 |
|
public void realRun() { |
297 |
|
q.put(new PDelay(0)); |
298 |
|
q.put(new PDelay(0)); |
300 |
|
q.put(new PDelay(0)); |
301 |
|
}}); |
302 |
|
|
303 |
< |
t.start(); |
304 |
< |
Thread.sleep(SHORT_DELAY_MS); |
356 |
< |
q.take(); |
357 |
< |
t.interrupt(); |
358 |
< |
t.join(); |
303 |
> |
awaitTermination(t); |
304 |
> |
assertEquals(4, q.size()); |
305 |
|
} |
306 |
|
|
307 |
|
/** |
309 |
|
*/ |
310 |
|
public void testTimedOffer() throws InterruptedException { |
311 |
|
final DelayQueue q = new DelayQueue(); |
312 |
< |
Thread t = new Thread(new CheckedRunnable() { |
312 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
313 |
|
public void realRun() throws InterruptedException { |
314 |
|
q.put(new PDelay(0)); |
315 |
|
q.put(new PDelay(0)); |
317 |
|
assertTrue(q.offer(new PDelay(0), LONG_DELAY_MS, MILLISECONDS)); |
318 |
|
}}); |
319 |
|
|
320 |
< |
t.start(); |
375 |
< |
Thread.sleep(SMALL_DELAY_MS); |
376 |
< |
t.interrupt(); |
377 |
< |
t.join(); |
320 |
> |
awaitTermination(t); |
321 |
|
} |
322 |
|
|
323 |
|
/** |
326 |
|
public void testTake() throws InterruptedException { |
327 |
|
DelayQueue q = populatedQueue(SIZE); |
328 |
|
for (int i = 0; i < SIZE; ++i) { |
329 |
< |
assertEquals(new PDelay(i), ((PDelay)q.take())); |
329 |
> |
assertEquals(new PDelay(i), q.take()); |
330 |
|
} |
331 |
|
} |
332 |
|
|
333 |
|
/** |
391 |
– |
* take blocks interruptibly when empty |
392 |
– |
*/ |
393 |
– |
public void testTakeFromEmpty() throws InterruptedException { |
394 |
– |
final DelayQueue q = new DelayQueue(); |
395 |
– |
Thread t = new ThreadShouldThrow(InterruptedException.class) { |
396 |
– |
public void realRun() throws InterruptedException { |
397 |
– |
q.take(); |
398 |
– |
}}; |
399 |
– |
|
400 |
– |
t.start(); |
401 |
– |
Thread.sleep(SHORT_DELAY_MS); |
402 |
– |
t.interrupt(); |
403 |
– |
t.join(); |
404 |
– |
} |
405 |
– |
|
406 |
– |
/** |
334 |
|
* Take removes existing elements until empty, then blocks interruptibly |
335 |
|
*/ |
336 |
|
public void testBlockingTake() throws InterruptedException { |
337 |
|
final DelayQueue q = populatedQueue(SIZE); |
338 |
< |
Thread t = new Thread(new CheckedRunnable() { |
338 |
> |
final CountDownLatch pleaseInterrupt = new CountDownLatch(1); |
339 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
340 |
|
public void realRun() throws InterruptedException { |
341 |
< |
for (int i = 0; i < SIZE; ++i) { |
341 |
> |
for (int i = 0; i < SIZE; i++) |
342 |
|
assertEquals(new PDelay(i), ((PDelay)q.take())); |
343 |
< |
} |
343 |
> |
|
344 |
> |
Thread.currentThread().interrupt(); |
345 |
|
try { |
346 |
|
q.take(); |
347 |
|
shouldThrow(); |
348 |
|
} catch (InterruptedException success) {} |
349 |
+ |
assertFalse(Thread.interrupted()); |
350 |
+ |
|
351 |
+ |
pleaseInterrupt.countDown(); |
352 |
+ |
try { |
353 |
+ |
q.take(); |
354 |
+ |
shouldThrow(); |
355 |
+ |
} catch (InterruptedException success) {} |
356 |
+ |
assertFalse(Thread.interrupted()); |
357 |
|
}}); |
358 |
|
|
359 |
< |
t.start(); |
360 |
< |
Thread.sleep(SHORT_DELAY_MS); |
359 |
> |
await(pleaseInterrupt); |
360 |
> |
assertThreadBlocks(t, Thread.State.WAITING); |
361 |
|
t.interrupt(); |
362 |
< |
t.join(); |
362 |
> |
awaitTermination(t); |
363 |
|
} |
364 |
|
|
428 |
– |
|
365 |
|
/** |
366 |
|
* poll succeeds unless empty |
367 |
|
*/ |
368 |
|
public void testPoll() { |
369 |
|
DelayQueue q = populatedQueue(SIZE); |
370 |
|
for (int i = 0; i < SIZE; ++i) { |
371 |
< |
assertEquals(new PDelay(i), ((PDelay)q.poll())); |
371 |
> |
assertEquals(new PDelay(i), q.poll()); |
372 |
|
} |
373 |
|
assertNull(q.poll()); |
374 |
|
} |
375 |
|
|
376 |
|
/** |
377 |
< |
* timed pool with zero timeout succeeds when non-empty, else times out |
377 |
> |
* timed poll with zero timeout succeeds when non-empty, else times out |
378 |
|
*/ |
379 |
|
public void testTimedPoll0() throws InterruptedException { |
380 |
|
DelayQueue q = populatedQueue(SIZE); |
381 |
|
for (int i = 0; i < SIZE; ++i) { |
382 |
< |
assertEquals(new PDelay(i), ((PDelay)q.poll(0, MILLISECONDS))); |
382 |
> |
assertEquals(new PDelay(i), q.poll(0, MILLISECONDS)); |
383 |
|
} |
384 |
|
assertNull(q.poll(0, MILLISECONDS)); |
385 |
|
} |
386 |
|
|
387 |
|
/** |
388 |
< |
* timed pool with nonzero timeout succeeds when non-empty, else times out |
388 |
> |
* timed poll with nonzero timeout succeeds when non-empty, else times out |
389 |
|
*/ |
390 |
|
public void testTimedPoll() throws InterruptedException { |
391 |
|
DelayQueue q = populatedQueue(SIZE); |
392 |
|
for (int i = 0; i < SIZE; ++i) { |
393 |
< |
assertEquals(new PDelay(i), ((PDelay)q.poll(SHORT_DELAY_MS, MILLISECONDS))); |
394 |
< |
} |
395 |
< |
assertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS)); |
393 |
> |
long startTime = System.nanoTime(); |
394 |
> |
assertEquals(new PDelay(i), q.poll(LONG_DELAY_MS, MILLISECONDS)); |
395 |
> |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
396 |
> |
} |
397 |
> |
long startTime = System.nanoTime(); |
398 |
> |
assertNull(q.poll(timeoutMillis(), MILLISECONDS)); |
399 |
> |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
400 |
> |
checkEmpty(q); |
401 |
|
} |
402 |
|
|
403 |
|
/** |
405 |
|
* returning timeout status |
406 |
|
*/ |
407 |
|
public void testInterruptedTimedPoll() throws InterruptedException { |
408 |
< |
Thread t = new Thread(new CheckedRunnable() { |
408 |
> |
final CountDownLatch pleaseInterrupt = new CountDownLatch(1); |
409 |
> |
final DelayQueue q = populatedQueue(SIZE); |
410 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
411 |
|
public void realRun() throws InterruptedException { |
412 |
< |
DelayQueue q = populatedQueue(SIZE); |
413 |
< |
for (int i = 0; i < SIZE; ++i) { |
414 |
< |
assertEquals(new PDelay(i), ((PDelay)q.poll(SHORT_DELAY_MS, MILLISECONDS))); |
415 |
< |
} |
412 |
> |
long startTime = System.nanoTime(); |
413 |
> |
for (int i = 0; i < SIZE; i++) |
414 |
> |
assertEquals(new PDelay(i), |
415 |
> |
((PDelay)q.poll(LONG_DELAY_MS, MILLISECONDS))); |
416 |
> |
|
417 |
> |
Thread.currentThread().interrupt(); |
418 |
|
try { |
419 |
< |
q.poll(SMALL_DELAY_MS, MILLISECONDS); |
419 |
> |
q.poll(LONG_DELAY_MS, MILLISECONDS); |
420 |
|
shouldThrow(); |
421 |
|
} catch (InterruptedException success) {} |
422 |
< |
}}); |
478 |
< |
|
479 |
< |
t.start(); |
480 |
< |
Thread.sleep(SHORT_DELAY_MS); |
481 |
< |
t.interrupt(); |
482 |
< |
t.join(); |
483 |
< |
} |
422 |
> |
assertFalse(Thread.interrupted()); |
423 |
|
|
424 |
< |
/** |
486 |
< |
* timed poll before a delayed offer fails; after offer succeeds; |
487 |
< |
* on interruption throws |
488 |
< |
*/ |
489 |
< |
public void testTimedPollWithOffer() throws InterruptedException { |
490 |
< |
final DelayQueue q = new DelayQueue(); |
491 |
< |
final PDelay pdelay = new PDelay(0); |
492 |
< |
Thread t = new Thread(new CheckedRunnable() { |
493 |
< |
public void realRun() throws InterruptedException { |
494 |
< |
assertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS)); |
495 |
< |
assertSame(pdelay, q.poll(LONG_DELAY_MS, MILLISECONDS)); |
424 |
> |
pleaseInterrupt.countDown(); |
425 |
|
try { |
426 |
|
q.poll(LONG_DELAY_MS, MILLISECONDS); |
427 |
|
shouldThrow(); |
428 |
|
} catch (InterruptedException success) {} |
429 |
+ |
assertFalse(Thread.interrupted()); |
430 |
+ |
|
431 |
+ |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
432 |
|
}}); |
433 |
|
|
434 |
< |
t.start(); |
435 |
< |
Thread.sleep(SMALL_DELAY_MS); |
504 |
< |
assertTrue(q.offer(pdelay, SHORT_DELAY_MS, MILLISECONDS)); |
434 |
> |
await(pleaseInterrupt); |
435 |
> |
assertThreadBlocks(t, Thread.State.TIMED_WAITING); |
436 |
|
t.interrupt(); |
437 |
< |
t.join(); |
437 |
> |
awaitTermination(t); |
438 |
> |
checkEmpty(q); |
439 |
|
} |
440 |
|
|
509 |
– |
|
441 |
|
/** |
442 |
|
* peek returns next element, or null if empty |
443 |
|
*/ |
444 |
|
public void testPeek() { |
445 |
|
DelayQueue q = populatedQueue(SIZE); |
446 |
|
for (int i = 0; i < SIZE; ++i) { |
447 |
< |
assertEquals(new PDelay(i), ((PDelay)q.peek())); |
448 |
< |
assertEquals(new PDelay(i), ((PDelay)q.poll())); |
447 |
> |
assertEquals(new PDelay(i), q.peek()); |
448 |
> |
assertEquals(new PDelay(i), q.poll()); |
449 |
|
if (q.isEmpty()) |
450 |
|
assertNull(q.peek()); |
451 |
|
else |
460 |
|
public void testElement() { |
461 |
|
DelayQueue q = populatedQueue(SIZE); |
462 |
|
for (int i = 0; i < SIZE; ++i) { |
463 |
< |
assertEquals(new PDelay(i), ((PDelay)q.element())); |
463 |
> |
assertEquals(new PDelay(i), q.element()); |
464 |
|
q.poll(); |
465 |
|
} |
466 |
|
try { |
475 |
|
public void testRemove() { |
476 |
|
DelayQueue q = populatedQueue(SIZE); |
477 |
|
for (int i = 0; i < SIZE; ++i) { |
478 |
< |
assertEquals(new PDelay(i), ((PDelay)q.remove())); |
478 |
> |
assertEquals(new PDelay(i), q.remove()); |
479 |
|
} |
480 |
|
try { |
481 |
|
q.remove(); |
484 |
|
} |
485 |
|
|
486 |
|
/** |
556 |
– |
* remove(x) removes x and returns true if present |
557 |
– |
*/ |
558 |
– |
public void testRemoveElement() { |
559 |
– |
DelayQueue q = populatedQueue(SIZE); |
560 |
– |
for (int i = 1; i < SIZE; i+=2) { |
561 |
– |
assertTrue(q.remove(new PDelay(i))); |
562 |
– |
} |
563 |
– |
for (int i = 0; i < SIZE; i+=2) { |
564 |
– |
assertTrue(q.remove(new PDelay(i))); |
565 |
– |
assertFalse(q.remove(new PDelay(i+1))); |
566 |
– |
} |
567 |
– |
assertTrue(q.isEmpty()); |
568 |
– |
} |
569 |
– |
|
570 |
– |
/** |
487 |
|
* contains(x) reports true when elements added but not yet removed |
488 |
|
*/ |
489 |
|
public void testContains() { |
503 |
|
q.clear(); |
504 |
|
assertTrue(q.isEmpty()); |
505 |
|
assertEquals(0, q.size()); |
506 |
< |
assertEquals(NOCAP, q.remainingCapacity()); |
506 |
> |
assertEquals(Integer.MAX_VALUE, q.remainingCapacity()); |
507 |
|
PDelay x = new PDelay(1); |
508 |
|
q.add(x); |
509 |
|
assertFalse(q.isEmpty()); |
540 |
|
assertTrue(changed); |
541 |
|
|
542 |
|
assertTrue(q.containsAll(p)); |
543 |
< |
assertEquals(SIZE-i, q.size()); |
543 |
> |
assertEquals(SIZE - i, q.size()); |
544 |
|
p.remove(); |
545 |
|
} |
546 |
|
} |
553 |
|
DelayQueue q = populatedQueue(SIZE); |
554 |
|
DelayQueue p = populatedQueue(i); |
555 |
|
assertTrue(q.removeAll(p)); |
556 |
< |
assertEquals(SIZE-i, q.size()); |
556 |
> |
assertEquals(SIZE - i, q.size()); |
557 |
|
for (int j = 0; j < i; ++j) { |
558 |
< |
PDelay I = (PDelay)(p.remove()); |
559 |
< |
assertFalse(q.contains(I)); |
558 |
> |
PDelay x = (PDelay)(p.remove()); |
559 |
> |
assertFalse(q.contains(x)); |
560 |
|
} |
561 |
|
} |
562 |
|
} |
566 |
|
*/ |
567 |
|
public void testToArray() throws InterruptedException { |
568 |
|
DelayQueue q = populatedQueue(SIZE); |
569 |
< |
Object[] o = q.toArray(); |
570 |
< |
Arrays.sort(o); |
571 |
< |
for (int i = 0; i < o.length; i++) |
572 |
< |
assertEquals(o[i], q.take()); |
569 |
> |
Object[] a = q.toArray(); |
570 |
> |
assertSame(Object[].class, a.getClass()); |
571 |
> |
Arrays.sort(a); |
572 |
> |
for (Object o : a) |
573 |
> |
assertSame(o, q.take()); |
574 |
> |
assertTrue(q.isEmpty()); |
575 |
|
} |
576 |
|
|
577 |
|
/** |
578 |
|
* toArray(a) contains all elements |
579 |
|
*/ |
580 |
< |
public void testToArray2() throws InterruptedException { |
581 |
< |
DelayQueue q = populatedQueue(SIZE); |
580 |
> |
public void testToArray2() { |
581 |
> |
DelayQueue<PDelay> q = populatedQueue(SIZE); |
582 |
|
PDelay[] ints = new PDelay[SIZE]; |
583 |
< |
ints = (PDelay[])q.toArray(ints); |
583 |
> |
PDelay[] array = q.toArray(ints); |
584 |
> |
assertSame(ints, array); |
585 |
|
Arrays.sort(ints); |
586 |
< |
for (int i = 0; i < ints.length; i++) |
587 |
< |
assertEquals(ints[i], q.take()); |
588 |
< |
} |
670 |
< |
|
671 |
< |
|
672 |
< |
/** |
673 |
< |
* toArray(null) throws NPE |
674 |
< |
*/ |
675 |
< |
public void testToArray_BadArg() { |
676 |
< |
DelayQueue q = populatedQueue(SIZE); |
677 |
< |
try { |
678 |
< |
Object o[] = q.toArray(null); |
679 |
< |
shouldThrow(); |
680 |
< |
} catch (NullPointerException success) {} |
586 |
> |
for (PDelay o : ints) |
587 |
> |
assertSame(o, q.remove()); |
588 |
> |
assertTrue(q.isEmpty()); |
589 |
|
} |
590 |
|
|
591 |
|
/** |
592 |
< |
* toArray with incompatible array type throws CCE |
592 |
> |
* toArray(incompatible array type) throws ArrayStoreException |
593 |
|
*/ |
594 |
|
public void testToArray1_BadArg() { |
595 |
|
DelayQueue q = populatedQueue(SIZE); |
596 |
|
try { |
597 |
< |
Object o[] = q.toArray(new String[10]); |
597 |
> |
q.toArray(new String[10]); |
598 |
|
shouldThrow(); |
599 |
|
} catch (ArrayStoreException success) {} |
600 |
|
} |
611 |
|
++i; |
612 |
|
} |
613 |
|
assertEquals(i, SIZE); |
614 |
+ |
assertIteratorExhausted(it); |
615 |
+ |
} |
616 |
+ |
|
617 |
+ |
/** |
618 |
+ |
* iterator of empty collection has no elements |
619 |
+ |
*/ |
620 |
+ |
public void testEmptyIterator() { |
621 |
+ |
assertIteratorExhausted(new DelayQueue().iterator()); |
622 |
|
} |
623 |
|
|
624 |
|
/** |
625 |
|
* iterator.remove removes current element |
626 |
|
*/ |
627 |
< |
public void testIteratorRemove () { |
627 |
> |
public void testIteratorRemove() { |
628 |
|
final DelayQueue q = new DelayQueue(); |
629 |
|
q.add(new PDelay(2)); |
630 |
|
q.add(new PDelay(1)); |
633 |
|
it.next(); |
634 |
|
it.remove(); |
635 |
|
it = q.iterator(); |
636 |
< |
assertEquals(it.next(), new PDelay(2)); |
637 |
< |
assertEquals(it.next(), new PDelay(3)); |
636 |
> |
assertEquals(new PDelay(2), it.next()); |
637 |
> |
assertEquals(new PDelay(3), it.next()); |
638 |
|
assertFalse(it.hasNext()); |
639 |
|
} |
640 |
|
|
725 |
– |
|
641 |
|
/** |
642 |
|
* toString contains toStrings of elements |
643 |
|
*/ |
644 |
|
public void testToString() { |
645 |
|
DelayQueue q = populatedQueue(SIZE); |
646 |
|
String s = q.toString(); |
647 |
< |
for (int i = 0; i < SIZE; ++i) { |
648 |
< |
assertTrue(s.indexOf(String.valueOf(Integer.MIN_VALUE+i)) >= 0); |
734 |
< |
} |
647 |
> |
for (Object e : q) |
648 |
> |
assertTrue(s.contains(e.toString())); |
649 |
|
} |
650 |
|
|
651 |
|
/** |
652 |
< |
* offer transfers elements across Executor tasks |
652 |
> |
* timed poll transfers elements across Executor tasks |
653 |
|
*/ |
654 |
|
public void testPollInExecutor() { |
655 |
|
final DelayQueue q = new DelayQueue(); |
656 |
< |
ExecutorService executor = Executors.newFixedThreadPool(2); |
657 |
< |
executor.execute(new CheckedRunnable() { |
658 |
< |
public void realRun() throws InterruptedException { |
659 |
< |
assertNull(q.poll()); |
660 |
< |
assertTrue(null != q.poll(MEDIUM_DELAY_MS, MILLISECONDS)); |
661 |
< |
assertTrue(q.isEmpty()); |
662 |
< |
}}); |
663 |
< |
|
664 |
< |
executor.execute(new CheckedRunnable() { |
665 |
< |
public void realRun() throws InterruptedException { |
666 |
< |
Thread.sleep(SHORT_DELAY_MS); |
667 |
< |
q.put(new PDelay(1)); |
668 |
< |
}}); |
669 |
< |
|
670 |
< |
joinPool(executor); |
656 |
> |
final CheckedBarrier threadsStarted = new CheckedBarrier(2); |
657 |
> |
final ExecutorService executor = Executors.newFixedThreadPool(2); |
658 |
> |
try (PoolCleaner cleaner = cleaner(executor)) { |
659 |
> |
executor.execute(new CheckedRunnable() { |
660 |
> |
public void realRun() throws InterruptedException { |
661 |
> |
assertNull(q.poll()); |
662 |
> |
threadsStarted.await(); |
663 |
> |
assertNotNull(q.poll(LONG_DELAY_MS, MILLISECONDS)); |
664 |
> |
checkEmpty(q); |
665 |
> |
}}); |
666 |
> |
|
667 |
> |
executor.execute(new CheckedRunnable() { |
668 |
> |
public void realRun() throws InterruptedException { |
669 |
> |
threadsStarted.await(); |
670 |
> |
q.put(new PDelay(1)); |
671 |
> |
}}); |
672 |
> |
} |
673 |
|
} |
674 |
|
|
759 |
– |
|
675 |
|
/** |
676 |
|
* Delayed actions do not occur until their delay elapses |
677 |
|
*/ |
678 |
|
public void testDelay() throws InterruptedException { |
679 |
< |
DelayQueue q = new DelayQueue(); |
680 |
< |
NanoDelay[] elements = new NanoDelay[SIZE]; |
681 |
< |
for (int i = 0; i < SIZE; ++i) { |
767 |
< |
elements[i] = new NanoDelay(1000000000L + 1000000L * (SIZE - i)); |
768 |
< |
} |
769 |
< |
for (int i = 0; i < SIZE; ++i) { |
770 |
< |
q.add(elements[i]); |
771 |
< |
} |
679 |
> |
DelayQueue<NanoDelay> q = new DelayQueue<>(); |
680 |
> |
for (int i = 0; i < SIZE; ++i) |
681 |
> |
q.add(new NanoDelay(1000000L * (SIZE - i))); |
682 |
|
|
683 |
|
long last = 0; |
684 |
|
for (int i = 0; i < SIZE; ++i) { |
685 |
< |
NanoDelay e = (NanoDelay)(q.take()); |
685 |
> |
NanoDelay e = q.take(); |
686 |
|
long tt = e.getTriggerTime(); |
687 |
< |
assertTrue(tt <= System.nanoTime()); |
687 |
> |
assertTrue(System.nanoTime() - tt >= 0); |
688 |
|
if (i != 0) |
689 |
|
assertTrue(tt >= last); |
690 |
|
last = tt; |
691 |
|
} |
692 |
+ |
assertTrue(q.isEmpty()); |
693 |
|
} |
694 |
|
|
695 |
|
/** |
698 |
|
public void testPeekDelayed() { |
699 |
|
DelayQueue q = new DelayQueue(); |
700 |
|
q.add(new NanoDelay(Long.MAX_VALUE)); |
701 |
< |
assert(q.peek() != null); |
701 |
> |
assertNotNull(q.peek()); |
702 |
|
} |
703 |
|
|
793 |
– |
|
704 |
|
/** |
705 |
|
* poll of a non-empty queue returns null if no expired elements. |
706 |
|
*/ |
716 |
|
public void testTimedPollDelayed() throws InterruptedException { |
717 |
|
DelayQueue q = new DelayQueue(); |
718 |
|
q.add(new NanoDelay(LONG_DELAY_MS * 1000000L)); |
719 |
< |
assertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS)); |
720 |
< |
} |
721 |
< |
|
812 |
< |
/** |
813 |
< |
* drainTo(null) throws NPE |
814 |
< |
*/ |
815 |
< |
public void testDrainToNull() { |
816 |
< |
DelayQueue q = populatedQueue(SIZE); |
817 |
< |
try { |
818 |
< |
q.drainTo(null); |
819 |
< |
shouldThrow(); |
820 |
< |
} catch (NullPointerException success) {} |
821 |
< |
} |
822 |
< |
|
823 |
< |
/** |
824 |
< |
* drainTo(this) throws IAE |
825 |
< |
*/ |
826 |
< |
public void testDrainToSelf() { |
827 |
< |
DelayQueue q = populatedQueue(SIZE); |
828 |
< |
try { |
829 |
< |
q.drainTo(q); |
830 |
< |
shouldThrow(); |
831 |
< |
} catch (IllegalArgumentException success) {} |
719 |
> |
long startTime = System.nanoTime(); |
720 |
> |
assertNull(q.poll(timeoutMillis(), MILLISECONDS)); |
721 |
> |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
722 |
|
} |
723 |
|
|
724 |
|
/** |
733 |
|
} |
734 |
|
ArrayList l = new ArrayList(); |
735 |
|
q.drainTo(l); |
736 |
< |
assertEquals(q.size(), 0); |
736 |
> |
assertEquals(0, q.size()); |
737 |
|
for (int i = 0; i < SIZE; ++i) |
738 |
< |
assertEquals(l.get(i), elems[i]); |
738 |
> |
assertEquals(elems[i], l.get(i)); |
739 |
|
q.add(elems[0]); |
740 |
|
q.add(elems[1]); |
741 |
|
assertFalse(q.isEmpty()); |
743 |
|
assertTrue(q.contains(elems[1])); |
744 |
|
l.clear(); |
745 |
|
q.drainTo(l); |
746 |
< |
assertEquals(q.size(), 0); |
747 |
< |
assertEquals(l.size(), 2); |
746 |
> |
assertEquals(0, q.size()); |
747 |
> |
assertEquals(2, l.size()); |
748 |
|
for (int i = 0; i < 2; ++i) |
749 |
< |
assertEquals(l.get(i), elems[i]); |
749 |
> |
assertEquals(elems[i], l.get(i)); |
750 |
|
} |
751 |
|
|
752 |
|
/** |
756 |
|
final DelayQueue q = populatedQueue(SIZE); |
757 |
|
Thread t = new Thread(new CheckedRunnable() { |
758 |
|
public void realRun() { |
759 |
< |
q.put(new PDelay(SIZE+1)); |
759 |
> |
q.put(new PDelay(SIZE + 1)); |
760 |
|
}}); |
761 |
|
|
762 |
|
t.start(); |
768 |
|
} |
769 |
|
|
770 |
|
/** |
771 |
< |
* drainTo(null, n) throws NPE |
882 |
< |
*/ |
883 |
< |
public void testDrainToNullN() { |
884 |
< |
DelayQueue q = populatedQueue(SIZE); |
885 |
< |
try { |
886 |
< |
q.drainTo(null, 0); |
887 |
< |
shouldThrow(); |
888 |
< |
} catch (NullPointerException success) {} |
889 |
< |
} |
890 |
< |
|
891 |
< |
/** |
892 |
< |
* drainTo(this, n) throws IAE |
893 |
< |
*/ |
894 |
< |
public void testDrainToSelfN() { |
895 |
< |
DelayQueue q = populatedQueue(SIZE); |
896 |
< |
try { |
897 |
< |
q.drainTo(q, 0); |
898 |
< |
shouldThrow(); |
899 |
< |
} catch (IllegalArgumentException success) {} |
900 |
< |
} |
901 |
< |
|
902 |
< |
/** |
903 |
< |
* drainTo(c, n) empties first max {n, size} elements of queue into c |
771 |
> |
* drainTo(c, n) empties first min(n, size) elements of queue into c |
772 |
|
*/ |
773 |
|
public void testDrainToN() { |
774 |
|
for (int i = 0; i < SIZE + 2; ++i) { |
775 |
|
DelayQueue q = populatedQueue(SIZE); |
776 |
|
ArrayList l = new ArrayList(); |
777 |
|
q.drainTo(l, i); |
778 |
< |
int k = (i < SIZE)? i : SIZE; |
779 |
< |
assertEquals(q.size(), SIZE-k); |
780 |
< |
assertEquals(l.size(), k); |
778 |
> |
int k = (i < SIZE) ? i : SIZE; |
779 |
> |
assertEquals(SIZE - k, q.size()); |
780 |
> |
assertEquals(k, l.size()); |
781 |
|
} |
782 |
|
} |
783 |
|
|
784 |
< |
|
784 |
> |
/** |
785 |
> |
* remove(null), contains(null) always return false |
786 |
> |
*/ |
787 |
> |
public void testNeverContainsNull() { |
788 |
> |
Collection<?> q = populatedQueue(SIZE); |
789 |
> |
assertFalse(q.contains(null)); |
790 |
> |
assertFalse(q.remove(null)); |
791 |
> |
} |
792 |
|
} |