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/* |
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* Written by Doug Lea with assistance from members of JCP JSR-166 |
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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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|
9 |
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import junit.framework.*; |
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import java.util.*; |
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import java.util.concurrent.*; |
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import java.io.*; |
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import static java.util.concurrent.TimeUnit.MILLISECONDS; |
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|
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import java.util.ArrayList; |
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import java.util.Arrays; |
13 |
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import java.util.Collection; |
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import java.util.Comparator; |
15 |
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import java.util.Iterator; |
16 |
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import java.util.NoSuchElementException; |
17 |
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import java.util.Queue; |
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import java.util.concurrent.BlockingQueue; |
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import java.util.concurrent.CountDownLatch; |
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import java.util.concurrent.Executors; |
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import java.util.concurrent.ExecutorService; |
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import java.util.concurrent.PriorityBlockingQueue; |
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|
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import junit.framework.Test; |
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|
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public class PriorityBlockingQueueTest extends JSR166TestCase { |
27 |
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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 PriorityBlockingQueue(); |
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} |
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} |
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|
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public static class InitialCapacity extends BlockingQueueTest { |
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protected BlockingQueue emptyCollection() { |
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return new PriorityBlockingQueue(SIZE); |
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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(PriorityBlockingQueueTest.class); |
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return newTestSuite(PriorityBlockingQueueTest.class, |
46 |
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new Generic().testSuite(), |
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new InitialCapacity().testSuite()); |
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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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/** Sample Comparator */ |
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static class MyReverseComparator implements Comparator { |
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public int compare(Object x, Object y) { |
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int i = ((Integer)x).intValue(); |
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int j = ((Integer)y).intValue(); |
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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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return ((Comparable)y).compareTo(x); |
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} |
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} |
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|
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/** |
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* Create a queue of given size containing consecutive |
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* Returns a new queue of given size containing consecutive |
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* Integers 0 ... n. |
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*/ |
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private PriorityBlockingQueue populatedQueue(int n) { |
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PriorityBlockingQueue q = new PriorityBlockingQueue(n); |
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private PriorityBlockingQueue<Integer> populatedQueue(int n) { |
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PriorityBlockingQueue<Integer> q = |
63 |
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new PriorityBlockingQueue<Integer>(n); |
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assertTrue(q.isEmpty()); |
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for (int i = n-1; i >= 0; i-=2) |
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assertTrue(q.offer(new Integer(i))); |
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for (int i = (n & 1); i < n; i+=2) |
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assertTrue(q.offer(new Integer(i))); |
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for (int i = n - 1; i >= 0; i -= 2) |
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assertTrue(q.offer(new Integer(i))); |
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for (int i = (n & 1); i < n; i += 2) |
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assertTrue(q.offer(new Integer(i))); |
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assertFalse(q.isEmpty()); |
70 |
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assertEquals(NOCAP, q.remainingCapacity()); |
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assertEquals(n, q.size()); |
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assertEquals(Integer.MAX_VALUE, q.remainingCapacity()); |
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assertEquals(n, q.size()); |
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return q; |
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} |
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|
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* A new queue has unbounded capacity |
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*/ |
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public void testConstructor1() { |
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assertEquals(NOCAP, new PriorityBlockingQueue(SIZE).remainingCapacity()); |
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assertEquals(Integer.MAX_VALUE, |
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new PriorityBlockingQueue(SIZE).remainingCapacity()); |
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} |
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|
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/** |
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* Constructor throws IAE if capacity argument nonpositive |
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* Constructor throws IAE if capacity argument nonpositive |
85 |
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*/ |
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public void testConstructor2() { |
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try { |
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PriorityBlockingQueue q = new PriorityBlockingQueue(0); |
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new PriorityBlockingQueue(0); |
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shouldThrow(); |
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} |
67 |
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catch (IllegalArgumentException success) {} |
90 |
> |
} catch (IllegalArgumentException success) {} |
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} |
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|
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/** |
95 |
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*/ |
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public void testConstructor3() { |
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try { |
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PriorityBlockingQueue q = new PriorityBlockingQueue(null); |
98 |
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new PriorityBlockingQueue(null); |
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shouldThrow(); |
100 |
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} |
78 |
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catch (NullPointerException success) {} |
100 |
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} catch (NullPointerException success) {} |
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} |
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|
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/** |
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* Initializing from Collection of null elements throws NPE |
105 |
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*/ |
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public void testConstructor4() { |
107 |
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Collection<Integer> elements = Arrays.asList(new Integer[SIZE]); |
108 |
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try { |
109 |
< |
Integer[] ints = new Integer[SIZE]; |
87 |
< |
PriorityBlockingQueue q = new PriorityBlockingQueue(Arrays.asList(ints)); |
109 |
> |
new PriorityBlockingQueue(elements); |
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shouldThrow(); |
111 |
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} |
90 |
< |
catch (NullPointerException success) {} |
111 |
> |
} catch (NullPointerException success) {} |
112 |
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} |
113 |
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|
114 |
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/** |
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* Initializing from Collection with some null elements throws NPE |
116 |
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*/ |
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public void testConstructor5() { |
118 |
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Integer[] ints = new Integer[SIZE]; |
119 |
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for (int i = 0; i < SIZE - 1; ++i) |
120 |
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ints[i] = i; |
121 |
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Collection<Integer> elements = Arrays.asList(ints); |
122 |
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try { |
123 |
< |
Integer[] ints = new Integer[SIZE]; |
99 |
< |
for (int i = 0; i < SIZE-1; ++i) |
100 |
< |
ints[i] = new Integer(i); |
101 |
< |
PriorityBlockingQueue q = new PriorityBlockingQueue(Arrays.asList(ints)); |
123 |
> |
new PriorityBlockingQueue(elements); |
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shouldThrow(); |
125 |
< |
} |
104 |
< |
catch (NullPointerException success) {} |
125 |
> |
} catch (NullPointerException success) {} |
126 |
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} |
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|
128 |
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/** |
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* Queue contains all elements of collection used to initialize |
130 |
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*/ |
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public void testConstructor6() { |
132 |
< |
try { |
133 |
< |
Integer[] ints = new Integer[SIZE]; |
134 |
< |
for (int i = 0; i < SIZE; ++i) |
135 |
< |
ints[i] = new Integer(i); |
136 |
< |
PriorityBlockingQueue q = new PriorityBlockingQueue(Arrays.asList(ints)); |
137 |
< |
for (int i = 0; i < SIZE; ++i) |
117 |
< |
assertEquals(ints[i], q.poll()); |
118 |
< |
} |
119 |
< |
finally {} |
132 |
> |
Integer[] ints = new Integer[SIZE]; |
133 |
> |
for (int i = 0; i < SIZE; ++i) |
134 |
> |
ints[i] = i; |
135 |
> |
PriorityBlockingQueue q = new PriorityBlockingQueue(Arrays.asList(ints)); |
136 |
> |
for (int i = 0; i < SIZE; ++i) |
137 |
> |
assertEquals(ints[i], q.poll()); |
138 |
|
} |
139 |
|
|
140 |
|
/** |
141 |
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* The comparator used in constructor is used |
142 |
|
*/ |
143 |
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public void testConstructor7() { |
144 |
< |
try { |
145 |
< |
MyReverseComparator cmp = new MyReverseComparator(); |
146 |
< |
PriorityBlockingQueue q = new PriorityBlockingQueue(SIZE, cmp); |
147 |
< |
assertEquals(cmp, q.comparator()); |
148 |
< |
Integer[] ints = new Integer[SIZE]; |
149 |
< |
for (int i = 0; i < SIZE; ++i) |
150 |
< |
ints[i] = new Integer(i); |
151 |
< |
q.addAll(Arrays.asList(ints)); |
152 |
< |
for (int i = SIZE-1; i >= 0; --i) |
135 |
< |
assertEquals(ints[i], q.poll()); |
136 |
< |
} |
137 |
< |
finally {} |
144 |
> |
MyReverseComparator cmp = new MyReverseComparator(); |
145 |
> |
PriorityBlockingQueue q = new PriorityBlockingQueue(SIZE, cmp); |
146 |
> |
assertEquals(cmp, q.comparator()); |
147 |
> |
Integer[] ints = new Integer[SIZE]; |
148 |
> |
for (int i = 0; i < SIZE; ++i) |
149 |
> |
ints[i] = new Integer(i); |
150 |
> |
q.addAll(Arrays.asList(ints)); |
151 |
> |
for (int i = SIZE - 1; i >= 0; --i) |
152 |
> |
assertEquals(ints[i], q.poll()); |
153 |
|
} |
154 |
|
|
155 |
|
/** |
158 |
|
public void testEmpty() { |
159 |
|
PriorityBlockingQueue q = new PriorityBlockingQueue(2); |
160 |
|
assertTrue(q.isEmpty()); |
161 |
< |
assertEquals(NOCAP, q.remainingCapacity()); |
161 |
> |
assertEquals(Integer.MAX_VALUE, q.remainingCapacity()); |
162 |
|
q.add(one); |
163 |
|
assertFalse(q.isEmpty()); |
164 |
|
q.add(two); |
168 |
|
} |
169 |
|
|
170 |
|
/** |
171 |
< |
* remainingCapacity does not change when elements added or removed, |
157 |
< |
* but size does |
171 |
> |
* remainingCapacity() always returns Integer.MAX_VALUE |
172 |
|
*/ |
173 |
|
public void testRemainingCapacity() { |
174 |
< |
PriorityBlockingQueue q = populatedQueue(SIZE); |
174 |
> |
BlockingQueue q = populatedQueue(SIZE); |
175 |
|
for (int i = 0; i < SIZE; ++i) { |
176 |
< |
assertEquals(NOCAP, q.remainingCapacity()); |
177 |
< |
assertEquals(SIZE-i, q.size()); |
178 |
< |
q.remove(); |
176 |
> |
assertEquals(Integer.MAX_VALUE, q.remainingCapacity()); |
177 |
> |
assertEquals(SIZE - i, q.size()); |
178 |
> |
assertEquals(i, q.remove()); |
179 |
|
} |
180 |
|
for (int i = 0; i < SIZE; ++i) { |
181 |
< |
assertEquals(NOCAP, q.remainingCapacity()); |
181 |
> |
assertEquals(Integer.MAX_VALUE, q.remainingCapacity()); |
182 |
|
assertEquals(i, q.size()); |
183 |
< |
q.add(new Integer(i)); |
183 |
> |
assertTrue(q.add(i)); |
184 |
|
} |
185 |
|
} |
186 |
|
|
187 |
|
/** |
174 |
– |
* offer(null) throws NPE |
175 |
– |
*/ |
176 |
– |
public void testOfferNull() { |
177 |
– |
try { |
178 |
– |
PriorityBlockingQueue q = new PriorityBlockingQueue(1); |
179 |
– |
q.offer(null); |
180 |
– |
shouldThrow(); |
181 |
– |
} catch (NullPointerException success) { } |
182 |
– |
} |
183 |
– |
|
184 |
– |
/** |
185 |
– |
* add(null) throws NPE |
186 |
– |
*/ |
187 |
– |
public void testAddNull() { |
188 |
– |
try { |
189 |
– |
PriorityBlockingQueue q = new PriorityBlockingQueue(1); |
190 |
– |
q.add(null); |
191 |
– |
shouldThrow(); |
192 |
– |
} catch (NullPointerException success) { } |
193 |
– |
} |
194 |
– |
|
195 |
– |
/** |
188 |
|
* Offer of comparable element succeeds |
189 |
|
*/ |
190 |
|
public void testOffer() { |
197 |
|
* Offer of non-Comparable throws CCE |
198 |
|
*/ |
199 |
|
public void testOfferNonComparable() { |
200 |
+ |
PriorityBlockingQueue q = new PriorityBlockingQueue(1); |
201 |
|
try { |
209 |
– |
PriorityBlockingQueue q = new PriorityBlockingQueue(1); |
210 |
– |
q.offer(new Object()); |
211 |
– |
q.offer(new Object()); |
202 |
|
q.offer(new Object()); |
203 |
|
shouldThrow(); |
204 |
+ |
} catch (ClassCastException success) { |
205 |
+ |
assertTrue(q.isEmpty()); |
206 |
+ |
assertEquals(0, q.size()); |
207 |
+ |
assertNull(q.poll()); |
208 |
|
} |
215 |
– |
catch (ClassCastException success) {} |
209 |
|
} |
210 |
|
|
211 |
|
/** |
220 |
|
} |
221 |
|
|
222 |
|
/** |
230 |
– |
* addAll(null) throws NPE |
231 |
– |
*/ |
232 |
– |
public void testAddAll1() { |
233 |
– |
try { |
234 |
– |
PriorityBlockingQueue q = new PriorityBlockingQueue(1); |
235 |
– |
q.addAll(null); |
236 |
– |
shouldThrow(); |
237 |
– |
} |
238 |
– |
catch (NullPointerException success) {} |
239 |
– |
} |
240 |
– |
|
241 |
– |
/** |
223 |
|
* addAll(this) throws IAE |
224 |
|
*/ |
225 |
|
public void testAddAllSelf() { |
226 |
+ |
PriorityBlockingQueue q = populatedQueue(SIZE); |
227 |
|
try { |
246 |
– |
PriorityBlockingQueue q = populatedQueue(SIZE); |
228 |
|
q.addAll(q); |
229 |
|
shouldThrow(); |
230 |
< |
} |
250 |
< |
catch (IllegalArgumentException success) {} |
230 |
> |
} catch (IllegalArgumentException success) {} |
231 |
|
} |
232 |
|
|
233 |
|
/** |
254 |
– |
* addAll of a collection with null elements throws NPE |
255 |
– |
*/ |
256 |
– |
public void testAddAll2() { |
257 |
– |
try { |
258 |
– |
PriorityBlockingQueue q = new PriorityBlockingQueue(SIZE); |
259 |
– |
Integer[] ints = new Integer[SIZE]; |
260 |
– |
q.addAll(Arrays.asList(ints)); |
261 |
– |
shouldThrow(); |
262 |
– |
} |
263 |
– |
catch (NullPointerException success) {} |
264 |
– |
} |
265 |
– |
/** |
234 |
|
* addAll of a collection with any null elements throws NPE after |
235 |
|
* possibly adding some elements |
236 |
|
*/ |
237 |
|
public void testAddAll3() { |
238 |
+ |
PriorityBlockingQueue q = new PriorityBlockingQueue(SIZE); |
239 |
+ |
Integer[] ints = new Integer[SIZE]; |
240 |
+ |
for (int i = 0; i < SIZE - 1; ++i) |
241 |
+ |
ints[i] = new Integer(i); |
242 |
|
try { |
271 |
– |
PriorityBlockingQueue q = new PriorityBlockingQueue(SIZE); |
272 |
– |
Integer[] ints = new Integer[SIZE]; |
273 |
– |
for (int i = 0; i < SIZE-1; ++i) |
274 |
– |
ints[i] = new Integer(i); |
243 |
|
q.addAll(Arrays.asList(ints)); |
244 |
|
shouldThrow(); |
245 |
< |
} |
278 |
< |
catch (NullPointerException success) {} |
245 |
> |
} catch (NullPointerException success) {} |
246 |
|
} |
247 |
|
|
248 |
|
/** |
249 |
|
* Queue contains all elements of successful addAll |
250 |
|
*/ |
251 |
|
public void testAddAll5() { |
252 |
< |
try { |
253 |
< |
Integer[] empty = new Integer[0]; |
254 |
< |
Integer[] ints = new Integer[SIZE]; |
255 |
< |
for (int i = SIZE-1; i >= 0; --i) |
256 |
< |
ints[i] = new Integer(i); |
257 |
< |
PriorityBlockingQueue q = new PriorityBlockingQueue(SIZE); |
258 |
< |
assertFalse(q.addAll(Arrays.asList(empty))); |
259 |
< |
assertTrue(q.addAll(Arrays.asList(ints))); |
260 |
< |
for (int i = 0; i < SIZE; ++i) |
294 |
< |
assertEquals(ints[i], q.poll()); |
295 |
< |
} |
296 |
< |
finally {} |
252 |
> |
Integer[] empty = new Integer[0]; |
253 |
> |
Integer[] ints = new Integer[SIZE]; |
254 |
> |
for (int i = SIZE - 1; i >= 0; --i) |
255 |
> |
ints[i] = new Integer(i); |
256 |
> |
PriorityBlockingQueue q = new PriorityBlockingQueue(SIZE); |
257 |
> |
assertFalse(q.addAll(Arrays.asList(empty))); |
258 |
> |
assertTrue(q.addAll(Arrays.asList(ints))); |
259 |
> |
for (int i = 0; i < SIZE; ++i) |
260 |
> |
assertEquals(ints[i], q.poll()); |
261 |
|
} |
262 |
|
|
263 |
|
/** |
300 |
– |
* put(null) throws NPE |
301 |
– |
*/ |
302 |
– |
public void testPutNull() { |
303 |
– |
try { |
304 |
– |
PriorityBlockingQueue q = new PriorityBlockingQueue(SIZE); |
305 |
– |
q.put(null); |
306 |
– |
shouldThrow(); |
307 |
– |
} |
308 |
– |
catch (NullPointerException success){ |
309 |
– |
} |
310 |
– |
} |
311 |
– |
|
312 |
– |
/** |
264 |
|
* all elements successfully put are contained |
265 |
|
*/ |
266 |
< |
public void testPut() { |
267 |
< |
try { |
268 |
< |
PriorityBlockingQueue q = new PriorityBlockingQueue(SIZE); |
269 |
< |
for (int i = 0; i < SIZE; ++i) { |
270 |
< |
Integer I = new Integer(i); |
271 |
< |
q.put(I); |
321 |
< |
assertTrue(q.contains(I)); |
322 |
< |
} |
323 |
< |
assertEquals(SIZE, q.size()); |
324 |
< |
} |
325 |
< |
finally { |
266 |
> |
public void testPut() { |
267 |
> |
PriorityBlockingQueue q = new PriorityBlockingQueue(SIZE); |
268 |
> |
for (int i = 0; i < SIZE; ++i) { |
269 |
> |
Integer x = new Integer(i); |
270 |
> |
q.put(x); |
271 |
> |
assertTrue(q.contains(x)); |
272 |
|
} |
273 |
+ |
assertEquals(SIZE, q.size()); |
274 |
|
} |
275 |
|
|
276 |
|
/** |
277 |
|
* put doesn't block waiting for take |
278 |
|
*/ |
279 |
< |
public void testPutWithTake() { |
279 |
> |
public void testPutWithTake() throws InterruptedException { |
280 |
|
final PriorityBlockingQueue q = new PriorityBlockingQueue(2); |
281 |
< |
Thread t = new Thread(new Runnable() { |
282 |
< |
public void run() { |
283 |
< |
int added = 0; |
284 |
< |
try { |
285 |
< |
q.put(new Integer(0)); |
286 |
< |
++added; |
287 |
< |
q.put(new Integer(0)); |
288 |
< |
++added; |
289 |
< |
q.put(new Integer(0)); |
290 |
< |
++added; |
344 |
< |
q.put(new Integer(0)); |
345 |
< |
++added; |
346 |
< |
threadAssertTrue(added == 4); |
347 |
< |
} finally { |
348 |
< |
} |
349 |
< |
} |
350 |
< |
}); |
351 |
< |
try { |
352 |
< |
t.start(); |
353 |
< |
Thread.sleep(SHORT_DELAY_MS); |
354 |
< |
q.take(); |
355 |
< |
t.interrupt(); |
356 |
< |
t.join(); |
357 |
< |
} catch (Exception e){ |
358 |
< |
unexpectedException(); |
359 |
< |
} |
281 |
> |
final int size = 4; |
282 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
283 |
> |
public void realRun() { |
284 |
> |
for (int i = 0; i < size; i++) |
285 |
> |
q.put(new Integer(0)); |
286 |
> |
}}); |
287 |
> |
|
288 |
> |
awaitTermination(t); |
289 |
> |
assertEquals(size, q.size()); |
290 |
> |
q.take(); |
291 |
|
} |
292 |
|
|
293 |
|
/** |
294 |
|
* timed offer does not time out |
295 |
|
*/ |
296 |
< |
public void testTimedOffer() { |
296 |
> |
public void testTimedOffer() throws InterruptedException { |
297 |
|
final PriorityBlockingQueue q = new PriorityBlockingQueue(2); |
298 |
< |
Thread t = new Thread(new Runnable() { |
299 |
< |
public void run() { |
300 |
< |
try { |
301 |
< |
q.put(new Integer(0)); |
302 |
< |
q.put(new Integer(0)); |
303 |
< |
threadAssertTrue(q.offer(new Integer(0), SHORT_DELAY_MS, TimeUnit.MILLISECONDS)); |
304 |
< |
threadAssertTrue(q.offer(new Integer(0), LONG_DELAY_MS, TimeUnit.MILLISECONDS)); |
374 |
< |
} finally { } |
375 |
< |
} |
376 |
< |
}); |
298 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
299 |
> |
public void realRun() { |
300 |
> |
q.put(new Integer(0)); |
301 |
> |
q.put(new Integer(0)); |
302 |
> |
assertTrue(q.offer(new Integer(0), SHORT_DELAY_MS, MILLISECONDS)); |
303 |
> |
assertTrue(q.offer(new Integer(0), LONG_DELAY_MS, MILLISECONDS)); |
304 |
> |
}}); |
305 |
|
|
306 |
< |
try { |
379 |
< |
t.start(); |
380 |
< |
Thread.sleep(SMALL_DELAY_MS); |
381 |
< |
t.interrupt(); |
382 |
< |
t.join(); |
383 |
< |
} catch (Exception e){ |
384 |
< |
unexpectedException(); |
385 |
< |
} |
306 |
> |
awaitTermination(t); |
307 |
|
} |
308 |
|
|
309 |
|
/** |
310 |
|
* take retrieves elements in priority order |
311 |
|
*/ |
312 |
< |
public void testTake() { |
313 |
< |
try { |
314 |
< |
PriorityBlockingQueue q = populatedQueue(SIZE); |
315 |
< |
for (int i = 0; i < SIZE; ++i) { |
395 |
< |
assertEquals(i, ((Integer)q.take()).intValue()); |
396 |
< |
} |
397 |
< |
} catch (InterruptedException e){ |
398 |
< |
unexpectedException(); |
399 |
< |
} |
400 |
< |
} |
401 |
< |
|
402 |
< |
/** |
403 |
< |
* take blocks interruptibly when empty |
404 |
< |
*/ |
405 |
< |
public void testTakeFromEmpty() { |
406 |
< |
final PriorityBlockingQueue q = new PriorityBlockingQueue(2); |
407 |
< |
Thread t = new Thread(new Runnable() { |
408 |
< |
public void run() { |
409 |
< |
try { |
410 |
< |
q.take(); |
411 |
< |
threadShouldThrow(); |
412 |
< |
} catch (InterruptedException success){ } |
413 |
< |
} |
414 |
< |
}); |
415 |
< |
try { |
416 |
< |
t.start(); |
417 |
< |
Thread.sleep(SHORT_DELAY_MS); |
418 |
< |
t.interrupt(); |
419 |
< |
t.join(); |
420 |
< |
} catch (Exception e){ |
421 |
< |
unexpectedException(); |
312 |
> |
public void testTake() throws InterruptedException { |
313 |
> |
PriorityBlockingQueue q = populatedQueue(SIZE); |
314 |
> |
for (int i = 0; i < SIZE; ++i) { |
315 |
> |
assertEquals(i, q.take()); |
316 |
|
} |
317 |
|
} |
318 |
|
|
319 |
|
/** |
320 |
|
* Take removes existing elements until empty, then blocks interruptibly |
321 |
|
*/ |
322 |
< |
public void testBlockingTake() { |
323 |
< |
Thread t = new Thread(new Runnable() { |
324 |
< |
public void run() { |
325 |
< |
try { |
326 |
< |
PriorityBlockingQueue q = populatedQueue(SIZE); |
327 |
< |
for (int i = 0; i < SIZE; ++i) { |
328 |
< |
threadAssertEquals(i, ((Integer)q.take()).intValue()); |
329 |
< |
} |
330 |
< |
q.take(); |
331 |
< |
threadShouldThrow(); |
332 |
< |
} catch (InterruptedException success){ |
333 |
< |
} |
334 |
< |
}}); |
335 |
< |
t.start(); |
336 |
< |
try { |
443 |
< |
Thread.sleep(SHORT_DELAY_MS); |
444 |
< |
t.interrupt(); |
445 |
< |
t.join(); |
446 |
< |
} |
447 |
< |
catch (InterruptedException ie) { |
448 |
< |
unexpectedException(); |
449 |
< |
} |
450 |
< |
} |
322 |
> |
public void testBlockingTake() throws InterruptedException { |
323 |
> |
final PriorityBlockingQueue q = populatedQueue(SIZE); |
324 |
> |
final CountDownLatch pleaseInterrupt = new CountDownLatch(1); |
325 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
326 |
> |
public void realRun() throws InterruptedException { |
327 |
> |
for (int i = 0; i < SIZE; ++i) { |
328 |
> |
assertEquals(i, q.take()); |
329 |
> |
} |
330 |
> |
|
331 |
> |
Thread.currentThread().interrupt(); |
332 |
> |
try { |
333 |
> |
q.take(); |
334 |
> |
shouldThrow(); |
335 |
> |
} catch (InterruptedException success) {} |
336 |
> |
assertFalse(Thread.interrupted()); |
337 |
|
|
338 |
+ |
pleaseInterrupt.countDown(); |
339 |
+ |
try { |
340 |
+ |
q.take(); |
341 |
+ |
shouldThrow(); |
342 |
+ |
} catch (InterruptedException success) {} |
343 |
+ |
assertFalse(Thread.interrupted()); |
344 |
+ |
}}); |
345 |
+ |
|
346 |
+ |
await(pleaseInterrupt); |
347 |
+ |
assertThreadStaysAlive(t); |
348 |
+ |
t.interrupt(); |
349 |
+ |
awaitTermination(t); |
350 |
+ |
} |
351 |
|
|
352 |
|
/** |
353 |
|
* poll succeeds unless empty |
355 |
|
public void testPoll() { |
356 |
|
PriorityBlockingQueue q = populatedQueue(SIZE); |
357 |
|
for (int i = 0; i < SIZE; ++i) { |
358 |
< |
assertEquals(i, ((Integer)q.poll()).intValue()); |
358 |
> |
assertEquals(i, q.poll()); |
359 |
|
} |
360 |
< |
assertNull(q.poll()); |
360 |
> |
assertNull(q.poll()); |
361 |
|
} |
362 |
|
|
363 |
|
/** |
364 |
< |
* timed pool with zero timeout succeeds when non-empty, else times out |
364 |
> |
* timed poll with zero timeout succeeds when non-empty, else times out |
365 |
|
*/ |
366 |
< |
public void testTimedPoll0() { |
367 |
< |
try { |
368 |
< |
PriorityBlockingQueue q = populatedQueue(SIZE); |
369 |
< |
for (int i = 0; i < SIZE; ++i) { |
370 |
< |
assertEquals(i, ((Integer)q.poll(0, TimeUnit.MILLISECONDS)).intValue()); |
371 |
< |
} |
473 |
< |
assertNull(q.poll(0, TimeUnit.MILLISECONDS)); |
474 |
< |
} catch (InterruptedException e){ |
475 |
< |
unexpectedException(); |
476 |
< |
} |
366 |
> |
public void testTimedPoll0() throws InterruptedException { |
367 |
> |
PriorityBlockingQueue q = populatedQueue(SIZE); |
368 |
> |
for (int i = 0; i < SIZE; ++i) { |
369 |
> |
assertEquals(i, q.poll(0, MILLISECONDS)); |
370 |
> |
} |
371 |
> |
assertNull(q.poll(0, MILLISECONDS)); |
372 |
|
} |
373 |
|
|
374 |
|
/** |
375 |
< |
* timed pool with nonzero timeout succeeds when non-empty, else times out |
375 |
> |
* timed poll with nonzero timeout succeeds when non-empty, else times out |
376 |
|
*/ |
377 |
< |
public void testTimedPoll() { |
378 |
< |
try { |
379 |
< |
PriorityBlockingQueue q = populatedQueue(SIZE); |
380 |
< |
for (int i = 0; i < SIZE; ++i) { |
381 |
< |
assertEquals(i, ((Integer)q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS)).intValue()); |
382 |
< |
} |
383 |
< |
assertNull(q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS)); |
384 |
< |
} catch (InterruptedException e){ |
385 |
< |
unexpectedException(); |
386 |
< |
} |
377 |
> |
public void testTimedPoll() throws InterruptedException { |
378 |
> |
PriorityBlockingQueue<Integer> q = populatedQueue(SIZE); |
379 |
> |
for (int i = 0; i < SIZE; ++i) { |
380 |
> |
long startTime = System.nanoTime(); |
381 |
> |
assertEquals(i, (int) q.poll(LONG_DELAY_MS, MILLISECONDS)); |
382 |
> |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
383 |
> |
} |
384 |
> |
long startTime = System.nanoTime(); |
385 |
> |
assertNull(q.poll(timeoutMillis(), MILLISECONDS)); |
386 |
> |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
387 |
> |
checkEmpty(q); |
388 |
|
} |
389 |
|
|
390 |
|
/** |
391 |
|
* Interrupted timed poll throws InterruptedException instead of |
392 |
|
* returning timeout status |
393 |
|
*/ |
394 |
< |
public void testInterruptedTimedPoll() { |
395 |
< |
Thread t = new Thread(new Runnable() { |
396 |
< |
public void run() { |
397 |
< |
try { |
398 |
< |
PriorityBlockingQueue q = populatedQueue(SIZE); |
399 |
< |
for (int i = 0; i < SIZE; ++i) { |
400 |
< |
threadAssertEquals(i, ((Integer)q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS)).intValue()); |
401 |
< |
} |
506 |
< |
threadAssertNull(q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS)); |
507 |
< |
} catch (InterruptedException success){ |
508 |
< |
} |
509 |
< |
}}); |
510 |
< |
t.start(); |
511 |
< |
try { |
512 |
< |
Thread.sleep(SHORT_DELAY_MS); |
513 |
< |
t.interrupt(); |
514 |
< |
t.join(); |
515 |
< |
} |
516 |
< |
catch (InterruptedException ie) { |
517 |
< |
unexpectedException(); |
518 |
< |
} |
519 |
< |
} |
520 |
< |
|
521 |
< |
/** |
522 |
< |
* timed poll before a delayed offer fails; after offer succeeds; |
523 |
< |
* on interruption throws |
524 |
< |
*/ |
525 |
< |
public void testTimedPollWithOffer() { |
526 |
< |
final PriorityBlockingQueue q = new PriorityBlockingQueue(2); |
527 |
< |
Thread t = new Thread(new Runnable() { |
528 |
< |
public void run() { |
529 |
< |
try { |
530 |
< |
threadAssertNull(q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS)); |
531 |
< |
q.poll(LONG_DELAY_MS, TimeUnit.MILLISECONDS); |
532 |
< |
q.poll(LONG_DELAY_MS, TimeUnit.MILLISECONDS); |
533 |
< |
threadShouldThrow(); |
534 |
< |
} catch (InterruptedException success) { } |
394 |
> |
public void testInterruptedTimedPoll() throws InterruptedException { |
395 |
> |
final BlockingQueue<Integer> q = populatedQueue(SIZE); |
396 |
> |
final CountDownLatch aboutToWait = new CountDownLatch(1); |
397 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
398 |
> |
public void realRun() throws InterruptedException { |
399 |
> |
long startTime = System.nanoTime(); |
400 |
> |
for (int i = 0; i < SIZE; ++i) { |
401 |
> |
assertEquals(i, (int) q.poll(LONG_DELAY_MS, MILLISECONDS)); |
402 |
|
} |
403 |
< |
}); |
404 |
< |
try { |
405 |
< |
t.start(); |
406 |
< |
Thread.sleep(SMALL_DELAY_MS); |
407 |
< |
assertTrue(q.offer(new Integer(0), SHORT_DELAY_MS, TimeUnit.MILLISECONDS)); |
408 |
< |
t.interrupt(); |
409 |
< |
t.join(); |
410 |
< |
} catch (Exception e){ |
544 |
< |
unexpectedException(); |
545 |
< |
} |
546 |
< |
} |
403 |
> |
aboutToWait.countDown(); |
404 |
> |
try { |
405 |
> |
q.poll(LONG_DELAY_MS, MILLISECONDS); |
406 |
> |
shouldThrow(); |
407 |
> |
} catch (InterruptedException success) { |
408 |
> |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
409 |
> |
} |
410 |
> |
}}); |
411 |
|
|
412 |
+ |
aboutToWait.await(); |
413 |
+ |
waitForThreadToEnterWaitState(t); |
414 |
+ |
t.interrupt(); |
415 |
+ |
awaitTermination(t); |
416 |
+ |
} |
417 |
|
|
418 |
|
/** |
419 |
|
* peek returns next element, or null if empty |
421 |
|
public void testPeek() { |
422 |
|
PriorityBlockingQueue q = populatedQueue(SIZE); |
423 |
|
for (int i = 0; i < SIZE; ++i) { |
424 |
< |
assertEquals(i, ((Integer)q.peek()).intValue()); |
425 |
< |
q.poll(); |
424 |
> |
assertEquals(i, q.peek()); |
425 |
> |
assertEquals(i, q.poll()); |
426 |
|
assertTrue(q.peek() == null || |
427 |
< |
i != ((Integer)q.peek()).intValue()); |
427 |
> |
!q.peek().equals(i)); |
428 |
|
} |
429 |
< |
assertNull(q.peek()); |
429 |
> |
assertNull(q.peek()); |
430 |
|
} |
431 |
|
|
432 |
|
/** |
435 |
|
public void testElement() { |
436 |
|
PriorityBlockingQueue q = populatedQueue(SIZE); |
437 |
|
for (int i = 0; i < SIZE; ++i) { |
438 |
< |
assertEquals(i, ((Integer)q.element()).intValue()); |
439 |
< |
q.poll(); |
438 |
> |
assertEquals(i, q.element()); |
439 |
> |
assertEquals(i, q.poll()); |
440 |
|
} |
441 |
|
try { |
442 |
|
q.element(); |
443 |
|
shouldThrow(); |
444 |
< |
} |
576 |
< |
catch (NoSuchElementException success) {} |
444 |
> |
} catch (NoSuchElementException success) {} |
445 |
|
} |
446 |
|
|
447 |
|
/** |
450 |
|
public void testRemove() { |
451 |
|
PriorityBlockingQueue q = populatedQueue(SIZE); |
452 |
|
for (int i = 0; i < SIZE; ++i) { |
453 |
< |
assertEquals(i, ((Integer)q.remove()).intValue()); |
453 |
> |
assertEquals(i, q.remove()); |
454 |
|
} |
455 |
|
try { |
456 |
|
q.remove(); |
457 |
|
shouldThrow(); |
458 |
< |
} catch (NoSuchElementException success){ |
591 |
< |
} |
592 |
< |
} |
593 |
< |
|
594 |
< |
/** |
595 |
< |
* remove(x) removes x and returns true if present |
596 |
< |
*/ |
597 |
< |
public void testRemoveElement() { |
598 |
< |
PriorityBlockingQueue q = populatedQueue(SIZE); |
599 |
< |
for (int i = 1; i < SIZE; i+=2) { |
600 |
< |
assertTrue(q.remove(new Integer(i))); |
601 |
< |
} |
602 |
< |
for (int i = 0; i < SIZE; i+=2) { |
603 |
< |
assertTrue(q.remove(new Integer(i))); |
604 |
< |
assertFalse(q.remove(new Integer(i+1))); |
605 |
< |
} |
606 |
< |
assertTrue(q.isEmpty()); |
458 |
> |
} catch (NoSuchElementException success) {} |
459 |
|
} |
460 |
|
|
461 |
|
/** |
513 |
|
assertTrue(changed); |
514 |
|
|
515 |
|
assertTrue(q.containsAll(p)); |
516 |
< |
assertEquals(SIZE-i, q.size()); |
516 |
> |
assertEquals(SIZE - i, q.size()); |
517 |
|
p.remove(); |
518 |
|
} |
519 |
|
} |
526 |
|
PriorityBlockingQueue q = populatedQueue(SIZE); |
527 |
|
PriorityBlockingQueue p = populatedQueue(i); |
528 |
|
assertTrue(q.removeAll(p)); |
529 |
< |
assertEquals(SIZE-i, q.size()); |
529 |
> |
assertEquals(SIZE - i, q.size()); |
530 |
|
for (int j = 0; j < i; ++j) { |
531 |
< |
Integer I = (Integer)(p.remove()); |
532 |
< |
assertFalse(q.contains(I)); |
531 |
> |
Integer x = (Integer)(p.remove()); |
532 |
> |
assertFalse(q.contains(x)); |
533 |
|
} |
534 |
|
} |
535 |
|
} |
536 |
|
|
537 |
|
/** |
538 |
< |
* toArray contains all elements |
538 |
> |
* toArray contains all elements |
539 |
|
*/ |
540 |
< |
public void testToArray() { |
540 |
> |
public void testToArray() throws InterruptedException { |
541 |
|
PriorityBlockingQueue q = populatedQueue(SIZE); |
542 |
< |
Object[] o = q.toArray(); |
542 |
> |
Object[] o = q.toArray(); |
543 |
|
Arrays.sort(o); |
544 |
< |
try { |
545 |
< |
for (int i = 0; i < o.length; i++) |
694 |
< |
assertEquals(o[i], q.take()); |
695 |
< |
} catch (InterruptedException e){ |
696 |
< |
unexpectedException(); |
697 |
< |
} |
544 |
> |
for (int i = 0; i < o.length; i++) |
545 |
> |
assertSame(o[i], q.take()); |
546 |
|
} |
547 |
|
|
548 |
|
/** |
549 |
|
* toArray(a) contains all elements |
550 |
|
*/ |
551 |
< |
public void testToArray2() { |
552 |
< |
PriorityBlockingQueue q = populatedQueue(SIZE); |
553 |
< |
Integer[] ints = new Integer[SIZE]; |
554 |
< |
ints = (Integer[])q.toArray(ints); |
551 |
> |
public void testToArray2() throws InterruptedException { |
552 |
> |
PriorityBlockingQueue<Integer> q = populatedQueue(SIZE); |
553 |
> |
Integer[] ints = new Integer[SIZE]; |
554 |
> |
Integer[] array = q.toArray(ints); |
555 |
> |
assertSame(ints, array); |
556 |
|
Arrays.sort(ints); |
557 |
< |
try { |
558 |
< |
for (int i = 0; i < ints.length; i++) |
710 |
< |
assertEquals(ints[i], q.take()); |
711 |
< |
} catch (InterruptedException e){ |
712 |
< |
unexpectedException(); |
713 |
< |
} |
557 |
> |
for (int i = 0; i < ints.length; i++) |
558 |
> |
assertSame(ints[i], q.take()); |
559 |
|
} |
560 |
|
|
561 |
|
/** |
562 |
< |
* toArray(null) throws NPE |
718 |
< |
*/ |
719 |
< |
public void testToArray_BadArg() { |
720 |
< |
try { |
721 |
< |
PriorityBlockingQueue q = populatedQueue(SIZE); |
722 |
< |
Object o[] = q.toArray(null); |
723 |
< |
shouldThrow(); |
724 |
< |
} catch (NullPointerException success){} |
725 |
< |
} |
726 |
< |
|
727 |
< |
/** |
728 |
< |
* toArray with incompatible array type throws CCE |
562 |
> |
* toArray(incompatible array type) throws ArrayStoreException |
563 |
|
*/ |
564 |
|
public void testToArray1_BadArg() { |
565 |
< |
try { |
566 |
< |
PriorityBlockingQueue q = populatedQueue(SIZE); |
567 |
< |
Object o[] = q.toArray(new String[10] ); |
568 |
< |
shouldThrow(); |
569 |
< |
} catch (ArrayStoreException success){} |
565 |
> |
PriorityBlockingQueue q = populatedQueue(SIZE); |
566 |
> |
try { |
567 |
> |
q.toArray(new String[10]); |
568 |
> |
shouldThrow(); |
569 |
> |
} catch (ArrayStoreException success) {} |
570 |
|
} |
571 |
|
|
572 |
|
/** |
574 |
|
*/ |
575 |
|
public void testIterator() { |
576 |
|
PriorityBlockingQueue q = populatedQueue(SIZE); |
577 |
< |
int i = 0; |
578 |
< |
Iterator it = q.iterator(); |
579 |
< |
while (it.hasNext()) { |
577 |
> |
Iterator it = q.iterator(); |
578 |
> |
int i; |
579 |
> |
for (i = 0; it.hasNext(); i++) |
580 |
|
assertTrue(q.contains(it.next())); |
747 |
– |
++i; |
748 |
– |
} |
581 |
|
assertEquals(i, SIZE); |
582 |
+ |
assertIteratorExhausted(it); |
583 |
+ |
} |
584 |
+ |
|
585 |
+ |
/** |
586 |
+ |
* iterator of empty collection has no elements |
587 |
+ |
*/ |
588 |
+ |
public void testEmptyIterator() { |
589 |
+ |
assertIteratorExhausted(new PriorityBlockingQueue().iterator()); |
590 |
|
} |
591 |
|
|
592 |
|
/** |
593 |
|
* iterator.remove removes current element |
594 |
|
*/ |
595 |
< |
public void testIteratorRemove () { |
595 |
> |
public void testIteratorRemove() { |
596 |
|
final PriorityBlockingQueue q = new PriorityBlockingQueue(3); |
597 |
|
q.add(new Integer(2)); |
598 |
|
q.add(new Integer(1)); |
608 |
|
assertFalse(it.hasNext()); |
609 |
|
} |
610 |
|
|
771 |
– |
|
611 |
|
/** |
612 |
|
* toString contains toStrings of elements |
613 |
|
*/ |
615 |
|
PriorityBlockingQueue q = populatedQueue(SIZE); |
616 |
|
String s = q.toString(); |
617 |
|
for (int i = 0; i < SIZE; ++i) { |
618 |
< |
assertTrue(s.indexOf(String.valueOf(i)) >= 0); |
618 |
> |
assertTrue(s.contains(String.valueOf(i))); |
619 |
|
} |
620 |
|
} |
621 |
|
|
622 |
|
/** |
623 |
< |
* offer transfers elements across Executor tasks |
623 |
> |
* timed poll transfers elements across Executor tasks |
624 |
|
*/ |
625 |
|
public void testPollInExecutor() { |
626 |
|
final PriorityBlockingQueue q = new PriorityBlockingQueue(2); |
627 |
< |
ExecutorService executor = Executors.newFixedThreadPool(2); |
628 |
< |
executor.execute(new Runnable() { |
629 |
< |
public void run() { |
630 |
< |
threadAssertNull(q.poll()); |
631 |
< |
try { |
632 |
< |
threadAssertTrue(null != q.poll(MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS)); |
633 |
< |
threadAssertTrue(q.isEmpty()); |
634 |
< |
} |
635 |
< |
catch (InterruptedException e) { |
636 |
< |
threadUnexpectedException(); |
798 |
< |
} |
799 |
< |
} |
800 |
< |
}); |
801 |
< |
|
802 |
< |
executor.execute(new Runnable() { |
803 |
< |
public void run() { |
804 |
< |
try { |
805 |
< |
Thread.sleep(SMALL_DELAY_MS); |
806 |
< |
q.put(new Integer(1)); |
807 |
< |
} |
808 |
< |
catch (InterruptedException e) { |
809 |
< |
threadUnexpectedException(); |
810 |
< |
} |
811 |
< |
} |
812 |
< |
}); |
813 |
< |
|
814 |
< |
joinPool(executor); |
815 |
< |
} |
816 |
< |
|
817 |
< |
/** |
818 |
< |
* A deserialized serialized queue has same elements |
819 |
< |
*/ |
820 |
< |
public void testSerialization() { |
821 |
< |
PriorityBlockingQueue q = populatedQueue(SIZE); |
822 |
< |
try { |
823 |
< |
ByteArrayOutputStream bout = new ByteArrayOutputStream(10000); |
824 |
< |
ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout)); |
825 |
< |
out.writeObject(q); |
826 |
< |
out.close(); |
827 |
< |
|
828 |
< |
ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray()); |
829 |
< |
ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin)); |
830 |
< |
PriorityBlockingQueue r = (PriorityBlockingQueue)in.readObject(); |
831 |
< |
assertEquals(q.size(), r.size()); |
832 |
< |
while (!q.isEmpty()) |
833 |
< |
assertEquals(q.remove(), r.remove()); |
834 |
< |
} catch (Exception e){ |
835 |
< |
unexpectedException(); |
836 |
< |
} |
837 |
< |
} |
627 |
> |
final CheckedBarrier threadsStarted = new CheckedBarrier(2); |
628 |
> |
final ExecutorService executor = Executors.newFixedThreadPool(2); |
629 |
> |
try (PoolCleaner cleaner = cleaner(executor)) { |
630 |
> |
executor.execute(new CheckedRunnable() { |
631 |
> |
public void realRun() throws InterruptedException { |
632 |
> |
assertNull(q.poll()); |
633 |
> |
threadsStarted.await(); |
634 |
> |
assertSame(one, q.poll(LONG_DELAY_MS, MILLISECONDS)); |
635 |
> |
checkEmpty(q); |
636 |
> |
}}); |
637 |
|
|
638 |
< |
/** |
639 |
< |
* drainTo(null) throws NPE |
640 |
< |
*/ |
641 |
< |
public void testDrainToNull() { |
642 |
< |
PriorityBlockingQueue q = populatedQueue(SIZE); |
844 |
< |
try { |
845 |
< |
q.drainTo(null); |
846 |
< |
shouldThrow(); |
847 |
< |
} catch (NullPointerException success) { |
638 |
> |
executor.execute(new CheckedRunnable() { |
639 |
> |
public void realRun() throws InterruptedException { |
640 |
> |
threadsStarted.await(); |
641 |
> |
q.put(one); |
642 |
> |
}}); |
643 |
|
} |
644 |
|
} |
645 |
|
|
646 |
|
/** |
647 |
< |
* drainTo(this) throws IAE |
647 |
> |
* A deserialized serialized queue has same elements |
648 |
|
*/ |
649 |
< |
public void testDrainToSelf() { |
650 |
< |
PriorityBlockingQueue q = populatedQueue(SIZE); |
651 |
< |
try { |
652 |
< |
q.drainTo(q); |
653 |
< |
shouldThrow(); |
654 |
< |
} catch (IllegalArgumentException success) { |
649 |
> |
public void testSerialization() throws Exception { |
650 |
> |
Queue x = populatedQueue(SIZE); |
651 |
> |
Queue y = serialClone(x); |
652 |
> |
|
653 |
> |
assertNotSame(x, y); |
654 |
> |
assertEquals(x.size(), y.size()); |
655 |
> |
while (!x.isEmpty()) { |
656 |
> |
assertFalse(y.isEmpty()); |
657 |
> |
assertEquals(x.remove(), y.remove()); |
658 |
|
} |
659 |
+ |
assertTrue(y.isEmpty()); |
660 |
|
} |
661 |
|
|
662 |
|
/** |
666 |
|
PriorityBlockingQueue q = populatedQueue(SIZE); |
667 |
|
ArrayList l = new ArrayList(); |
668 |
|
q.drainTo(l); |
669 |
< |
assertEquals(q.size(), 0); |
670 |
< |
assertEquals(l.size(), SIZE); |
669 |
> |
assertEquals(0, q.size()); |
670 |
> |
assertEquals(SIZE, l.size()); |
671 |
|
for (int i = 0; i < SIZE; ++i) |
672 |
|
assertEquals(l.get(i), new Integer(i)); |
673 |
|
q.add(zero); |
677 |
|
assertTrue(q.contains(one)); |
678 |
|
l.clear(); |
679 |
|
q.drainTo(l); |
680 |
< |
assertEquals(q.size(), 0); |
681 |
< |
assertEquals(l.size(), 2); |
680 |
> |
assertEquals(0, q.size()); |
681 |
> |
assertEquals(2, l.size()); |
682 |
|
for (int i = 0; i < 2; ++i) |
683 |
|
assertEquals(l.get(i), new Integer(i)); |
684 |
|
} |
686 |
|
/** |
687 |
|
* drainTo empties queue |
688 |
|
*/ |
689 |
< |
public void testDrainToWithActivePut() { |
689 |
> |
public void testDrainToWithActivePut() throws InterruptedException { |
690 |
|
final PriorityBlockingQueue q = populatedQueue(SIZE); |
691 |
< |
Thread t = new Thread(new Runnable() { |
692 |
< |
public void run() { |
693 |
< |
q.put(new Integer(SIZE+1)); |
694 |
< |
} |
896 |
< |
}); |
897 |
< |
try { |
898 |
< |
t.start(); |
899 |
< |
ArrayList l = new ArrayList(); |
900 |
< |
q.drainTo(l); |
901 |
< |
assertTrue(l.size() >= SIZE); |
902 |
< |
for (int i = 0; i < SIZE; ++i) |
903 |
< |
assertEquals(l.get(i), new Integer(i)); |
904 |
< |
t.join(); |
905 |
< |
assertTrue(q.size() + l.size() >= SIZE); |
906 |
< |
} catch (Exception e){ |
907 |
< |
unexpectedException(); |
908 |
< |
} |
909 |
< |
} |
691 |
> |
Thread t = new Thread(new CheckedRunnable() { |
692 |
> |
public void realRun() { |
693 |
> |
q.put(new Integer(SIZE + 1)); |
694 |
> |
}}); |
695 |
|
|
696 |
< |
/** |
697 |
< |
* drainTo(null, n) throws NPE |
698 |
< |
*/ |
699 |
< |
public void testDrainToNullN() { |
700 |
< |
PriorityBlockingQueue q = populatedQueue(SIZE); |
701 |
< |
try { |
702 |
< |
q.drainTo(null, 0); |
703 |
< |
shouldThrow(); |
919 |
< |
} catch (NullPointerException success) { |
920 |
< |
} |
921 |
< |
} |
922 |
< |
|
923 |
< |
/** |
924 |
< |
* drainTo(this, n) throws IAE |
925 |
< |
*/ |
926 |
< |
public void testDrainToSelfN() { |
927 |
< |
PriorityBlockingQueue q = populatedQueue(SIZE); |
928 |
< |
try { |
929 |
< |
q.drainTo(q, 0); |
930 |
< |
shouldThrow(); |
931 |
< |
} catch (IllegalArgumentException success) { |
932 |
< |
} |
696 |
> |
t.start(); |
697 |
> |
ArrayList l = new ArrayList(); |
698 |
> |
q.drainTo(l); |
699 |
> |
assertTrue(l.size() >= SIZE); |
700 |
> |
for (int i = 0; i < SIZE; ++i) |
701 |
> |
assertEquals(l.get(i), new Integer(i)); |
702 |
> |
t.join(); |
703 |
> |
assertTrue(q.size() + l.size() >= SIZE); |
704 |
|
} |
705 |
|
|
706 |
|
/** |
707 |
< |
* drainTo(c, n) empties first max {n, size} elements of queue into c |
707 |
> |
* drainTo(c, n) empties first min(n, size) elements of queue into c |
708 |
|
*/ |
709 |
|
public void testDrainToN() { |
710 |
< |
PriorityBlockingQueue q = new PriorityBlockingQueue(SIZE*2); |
710 |
> |
PriorityBlockingQueue q = new PriorityBlockingQueue(SIZE * 2); |
711 |
|
for (int i = 0; i < SIZE + 2; ++i) { |
712 |
|
for (int j = 0; j < SIZE; j++) |
713 |
|
assertTrue(q.offer(new Integer(j))); |
714 |
|
ArrayList l = new ArrayList(); |
715 |
|
q.drainTo(l, i); |
716 |
< |
int k = (i < SIZE)? i : SIZE; |
717 |
< |
assertEquals(l.size(), k); |
718 |
< |
assertEquals(q.size(), SIZE-k); |
716 |
> |
int k = (i < SIZE) ? i : SIZE; |
717 |
> |
assertEquals(k, l.size()); |
718 |
> |
assertEquals(SIZE - k, q.size()); |
719 |
|
for (int j = 0; j < k; ++j) |
720 |
|
assertEquals(l.get(j), new Integer(j)); |
721 |
< |
while (q.poll() != null) ; |
721 |
> |
do {} while (q.poll() != null); |
722 |
|
} |
723 |
|
} |
724 |
|
|
725 |
+ |
/** |
726 |
+ |
* remove(null), contains(null) always return false |
727 |
+ |
*/ |
728 |
+ |
public void testNeverContainsNull() { |
729 |
+ |
Collection<?>[] qs = { |
730 |
+ |
new PriorityBlockingQueue<Object>(), |
731 |
+ |
populatedQueue(2), |
732 |
+ |
}; |
733 |
+ |
|
734 |
+ |
for (Collection<?> q : qs) { |
735 |
+ |
assertFalse(q.contains(null)); |
736 |
+ |
assertFalse(q.remove(null)); |
737 |
+ |
} |
738 |
+ |
} |
739 |
|
|
740 |
|
} |