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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 John Vint |
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*/ |
7 |
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|
8 |
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import java.io.BufferedInputStream; |
9 |
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import java.io.BufferedOutputStream; |
10 |
< |
import java.io.ByteArrayInputStream; |
11 |
< |
import java.io.ByteArrayOutputStream; |
12 |
< |
import java.io.ObjectInputStream; |
13 |
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import java.io.ObjectOutputStream; |
8 |
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import static java.util.concurrent.TimeUnit.MILLISECONDS; |
9 |
> |
|
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import java.util.ArrayList; |
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import java.util.Arrays; |
12 |
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import java.util.ConcurrentModificationException; |
12 |
> |
import java.util.Collection; |
13 |
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import java.util.Iterator; |
14 |
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import java.util.List; |
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import java.util.NoSuchElementException; |
16 |
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import java.util.concurrent.*; |
16 |
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import java.util.Queue; |
17 |
> |
import java.util.concurrent.BlockingQueue; |
18 |
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import java.util.concurrent.CountDownLatch; |
19 |
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import java.util.concurrent.Executors; |
20 |
> |
import java.util.concurrent.ExecutorService; |
21 |
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import java.util.concurrent.LinkedTransferQueue; |
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|
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import junit.framework.Test; |
21 |
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import junit.framework.TestSuite; |
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|
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@SuppressWarnings({"unchecked", "rawtypes"}) |
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public class LinkedTransferQueueTest extends JSR166TestCase { |
27 |
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static class Implementation implements CollectionImplementation { |
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public Class<?> klazz() { return LinkedTransferQueue.class; } |
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public Collection emptyCollection() { return new LinkedTransferQueue(); } |
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public Object makeElement(int i) { return 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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|
35 |
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public static class Generic extends BlockingQueueTest { |
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protected BlockingQueue emptyCollection() { |
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return new LinkedTransferQueue(); |
38 |
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} |
39 |
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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(LinkedTransferQueueTest.class); |
46 |
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return newTestSuite(LinkedTransferQueueTest.class, |
47 |
> |
new Generic().testSuite(), |
48 |
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CollectionTest.testSuite(new Implementation())); |
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} |
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|
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/** |
52 |
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* Constructor builds new queue with size being zero and empty being true |
52 |
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* Constructor builds new queue with size being zero and empty |
53 |
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* being true |
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*/ |
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public void testConstructor1() { |
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assertEquals(0, new LinkedTransferQueue().size()); |
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} |
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|
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/** |
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* Initializing constructor with null collection throws NPE |
61 |
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* Initializing constructor with null collection throws |
62 |
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* NullPointerException |
63 |
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*/ |
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public void testConstructor2() { |
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try { |
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new LinkedTransferQueue(null); |
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shouldThrow(); |
68 |
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} catch (NullPointerException success) { |
49 |
< |
} |
68 |
> |
} catch (NullPointerException success) {} |
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} |
70 |
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|
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/** |
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* Initializing from Collection of null elements throws NPE |
72 |
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* Initializing from Collection of null elements throws |
73 |
> |
* NullPointerException |
74 |
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*/ |
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public void testConstructor3() { |
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Collection<Integer> elements = Arrays.asList(new Integer[SIZE]); |
77 |
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try { |
78 |
< |
Integer[] ints = new Integer[SIZE]; |
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LinkedTransferQueue q = new LinkedTransferQueue(Arrays.asList(ints)); |
78 |
> |
new LinkedTransferQueue(elements); |
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shouldThrow(); |
80 |
< |
} catch (NullPointerException success) { |
61 |
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} |
80 |
> |
} catch (NullPointerException success) {} |
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} |
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|
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/** |
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* Initializing constructor with a collection containing some null elements |
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* throws NPE |
85 |
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* throws NullPointerException |
86 |
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*/ |
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public void testConstructor4() { |
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Integer[] ints = new Integer[SIZE]; |
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for (int i = 0; i < SIZE - 1; ++i) |
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ints[i] = i; |
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Collection<Integer> elements = Arrays.asList(ints); |
92 |
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try { |
93 |
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Integer[] ints = new Integer[SIZE]; |
71 |
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for (int i = 0; i < SIZE - 1; ++i) { |
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ints[i] = new Integer(i); |
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} |
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LinkedTransferQueue q = new LinkedTransferQueue(Arrays.asList(ints)); |
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new LinkedTransferQueue(elements); |
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shouldThrow(); |
95 |
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} catch (NullPointerException success) { |
77 |
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} |
95 |
> |
} catch (NullPointerException success) {} |
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} |
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|
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/** |
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* Queue contains all elements of the collection it is initialized by |
100 |
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*/ |
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public void testConstructor5() { |
102 |
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try { |
103 |
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Integer[] ints = new Integer[SIZE]; |
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for (int i = 0; i < SIZE; ++i) { |
105 |
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ints[i] = new Integer(i); |
106 |
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} |
107 |
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LinkedTransferQueue q = new LinkedTransferQueue(Arrays.asList(ints)); |
108 |
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for (int i = 0; i < SIZE; ++i) { |
109 |
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assertEquals(ints[i], q.poll()); |
110 |
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} |
111 |
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} finally { |
102 |
> |
Integer[] ints = new Integer[SIZE]; |
103 |
> |
for (int i = 0; i < SIZE; ++i) { |
104 |
> |
ints[i] = i; |
105 |
> |
} |
106 |
> |
List intList = Arrays.asList(ints); |
107 |
> |
LinkedTransferQueue q |
108 |
> |
= new LinkedTransferQueue(intList); |
109 |
> |
assertEquals(q.size(), intList.size()); |
110 |
> |
assertEquals(q.toString(), intList.toString()); |
111 |
> |
assertTrue(Arrays.equals(q.toArray(), |
112 |
> |
intList.toArray())); |
113 |
> |
assertTrue(Arrays.equals(q.toArray(new Object[0]), |
114 |
> |
intList.toArray(new Object[0]))); |
115 |
> |
assertTrue(Arrays.equals(q.toArray(new Object[SIZE]), |
116 |
> |
intList.toArray(new Object[SIZE]))); |
117 |
> |
for (int i = 0; i < SIZE; ++i) { |
118 |
> |
assertEquals(ints[i], q.poll()); |
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} |
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} |
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|
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/** |
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* Remaining capacity never decrease nor increase on add or remove |
123 |
> |
* remainingCapacity() always returns Integer.MAX_VALUE |
124 |
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*/ |
125 |
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public void testRemainingCapacity() { |
126 |
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LinkedTransferQueue q = populatedQueue(SIZE); |
102 |
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int remainingCapacity = q.remainingCapacity(); |
126 |
> |
BlockingQueue q = populatedQueue(SIZE); |
127 |
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for (int i = 0; i < SIZE; ++i) { |
128 |
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assertEquals(remainingCapacity, q.remainingCapacity()); |
128 |
> |
assertEquals(Integer.MAX_VALUE, q.remainingCapacity()); |
129 |
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assertEquals(SIZE - i, q.size()); |
130 |
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q.remove(); |
130 |
> |
assertEquals(i, q.remove()); |
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} |
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for (int i = 0; i < SIZE; ++i) { |
133 |
< |
assertEquals(remainingCapacity, q.remainingCapacity()); |
133 |
> |
assertEquals(Integer.MAX_VALUE, q.remainingCapacity()); |
134 |
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assertEquals(i, q.size()); |
135 |
< |
q.add(new Integer(i)); |
112 |
< |
} |
113 |
< |
} |
114 |
< |
|
115 |
< |
/** |
116 |
< |
* offer(null) throws NPE |
117 |
< |
*/ |
118 |
< |
public void testOfferNull() { |
119 |
< |
try { |
120 |
< |
LinkedTransferQueue q = new LinkedTransferQueue(); |
121 |
< |
q.offer(null); |
122 |
< |
shouldThrow(); |
123 |
< |
} catch (NullPointerException success) { |
124 |
< |
} |
125 |
< |
} |
126 |
< |
|
127 |
< |
/** |
128 |
< |
* add(null) throws NPE |
129 |
< |
*/ |
130 |
< |
public void testAddNull() { |
131 |
< |
try { |
132 |
< |
LinkedTransferQueue q = new LinkedTransferQueue(); |
133 |
< |
q.add(null); |
134 |
< |
shouldThrow(); |
135 |
< |
} catch (NullPointerException success) { |
136 |
< |
} |
137 |
< |
} |
138 |
< |
|
139 |
< |
/** |
140 |
< |
* addAll(null) throws NPE |
141 |
< |
*/ |
142 |
< |
public void testAddAll1() { |
143 |
< |
try { |
144 |
< |
LinkedTransferQueue q = new LinkedTransferQueue(); |
145 |
< |
q.addAll(null); |
146 |
< |
shouldThrow(); |
147 |
< |
} catch (NullPointerException success) { |
135 |
> |
assertTrue(q.add(i)); |
136 |
|
} |
137 |
|
} |
138 |
|
|
139 |
|
/** |
140 |
< |
* addAll(this) throws IAE |
140 |
> |
* addAll(this) throws IllegalArgumentException |
141 |
|
*/ |
142 |
|
public void testAddAllSelf() { |
143 |
+ |
LinkedTransferQueue q = populatedQueue(SIZE); |
144 |
|
try { |
156 |
– |
LinkedTransferQueue q = populatedQueue(SIZE); |
145 |
|
q.addAll(q); |
146 |
|
shouldThrow(); |
147 |
< |
} catch (IllegalArgumentException success) { |
160 |
< |
} |
147 |
> |
} catch (IllegalArgumentException success) {} |
148 |
|
} |
149 |
|
|
150 |
|
/** |
151 |
< |
* addAll of a collection with null elements throws NPE |
152 |
< |
*/ |
166 |
< |
public void testAddAll2() { |
167 |
< |
try { |
168 |
< |
LinkedTransferQueue q = new LinkedTransferQueue(); |
169 |
< |
Integer[] ints = new Integer[SIZE]; |
170 |
< |
q.addAll(Arrays.asList(ints)); |
171 |
< |
shouldThrow(); |
172 |
< |
} catch (NullPointerException success) { |
173 |
< |
} |
174 |
< |
} |
175 |
< |
|
176 |
< |
/** |
177 |
< |
* addAll of a collection with any null elements throws NPE after |
178 |
< |
* possibly adding some elements |
151 |
> |
* addAll of a collection with any null elements throws |
152 |
> |
* NullPointerException after possibly adding some elements |
153 |
|
*/ |
154 |
|
public void testAddAll3() { |
155 |
+ |
LinkedTransferQueue q = new LinkedTransferQueue(); |
156 |
+ |
Integer[] ints = new Integer[SIZE]; |
157 |
+ |
for (int i = 0; i < SIZE - 1; ++i) |
158 |
+ |
ints[i] = i; |
159 |
|
try { |
182 |
– |
LinkedTransferQueue q = new LinkedTransferQueue(); |
183 |
– |
Integer[] ints = new Integer[SIZE]; |
184 |
– |
for (int i = 0; i < SIZE - 1; ++i) { |
185 |
– |
ints[i] = new Integer(i); |
186 |
– |
} |
160 |
|
q.addAll(Arrays.asList(ints)); |
161 |
|
shouldThrow(); |
162 |
< |
} catch (NullPointerException success) { |
190 |
< |
} |
162 |
> |
} catch (NullPointerException success) {} |
163 |
|
} |
164 |
|
|
165 |
|
/** |
166 |
|
* Queue contains all elements, in traversal order, of successful addAll |
167 |
|
*/ |
168 |
|
public void testAddAll5() { |
169 |
< |
try { |
170 |
< |
Integer[] empty = new Integer[0]; |
171 |
< |
Integer[] ints = new Integer[SIZE]; |
172 |
< |
for (int i = 0; i < SIZE; ++i) { |
201 |
< |
ints[i] = new Integer(i); |
202 |
< |
} |
203 |
< |
LinkedTransferQueue q = new LinkedTransferQueue(); |
204 |
< |
assertFalse(q.addAll(Arrays.asList(empty))); |
205 |
< |
assertTrue(q.addAll(Arrays.asList(ints))); |
206 |
< |
for (int i = 0; i < SIZE; ++i) { |
207 |
< |
assertEquals(ints[i], q.poll()); |
208 |
< |
} |
209 |
< |
} finally { |
169 |
> |
Integer[] empty = new Integer[0]; |
170 |
> |
Integer[] ints = new Integer[SIZE]; |
171 |
> |
for (int i = 0; i < SIZE; ++i) { |
172 |
> |
ints[i] = i; |
173 |
|
} |
174 |
< |
} |
175 |
< |
|
176 |
< |
/** |
177 |
< |
* put(null) throws NPE |
178 |
< |
*/ |
216 |
< |
public void testPutNull() { |
217 |
< |
try { |
218 |
< |
LinkedTransferQueue q = new LinkedTransferQueue(); |
219 |
< |
q.put(null); |
220 |
< |
shouldThrow(); |
221 |
< |
} catch (NullPointerException success) { |
222 |
< |
} catch (Exception ie) { |
223 |
< |
unexpectedException(); |
174 |
> |
LinkedTransferQueue q = new LinkedTransferQueue(); |
175 |
> |
assertFalse(q.addAll(Arrays.asList(empty))); |
176 |
> |
assertTrue(q.addAll(Arrays.asList(ints))); |
177 |
> |
for (int i = 0; i < SIZE; ++i) { |
178 |
> |
assertEquals(ints[i], q.poll()); |
179 |
|
} |
180 |
|
} |
181 |
|
|
183 |
|
* all elements successfully put are contained |
184 |
|
*/ |
185 |
|
public void testPut() { |
186 |
< |
try { |
187 |
< |
LinkedTransferQueue q = new LinkedTransferQueue(); |
188 |
< |
for (int i = 0; i < SIZE; ++i) { |
189 |
< |
Integer I = new Integer(i); |
190 |
< |
q.put(I); |
236 |
< |
assertTrue(q.contains(I)); |
237 |
< |
} |
238 |
< |
} catch (Exception ie) { |
239 |
< |
unexpectedException(); |
186 |
> |
LinkedTransferQueue<Integer> q = new LinkedTransferQueue<Integer>(); |
187 |
> |
for (int i = 0; i < SIZE; ++i) { |
188 |
> |
assertEquals(i, q.size()); |
189 |
> |
q.put(i); |
190 |
> |
assertTrue(q.contains(i)); |
191 |
|
} |
192 |
|
} |
193 |
|
|
194 |
|
/** |
195 |
|
* take retrieves elements in FIFO order |
196 |
|
*/ |
197 |
< |
public void testTake() { |
198 |
< |
try { |
199 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
200 |
< |
for (int i = 0; i < SIZE; ++i) { |
250 |
< |
assertEquals(i, ((Integer) q.take()).intValue()); |
251 |
< |
} |
252 |
< |
} catch (InterruptedException e) { |
253 |
< |
unexpectedException(); |
197 |
> |
public void testTake() throws InterruptedException { |
198 |
> |
LinkedTransferQueue<Integer> q = populatedQueue(SIZE); |
199 |
> |
for (int i = 0; i < SIZE; ++i) { |
200 |
> |
assertEquals(i, (int) q.take()); |
201 |
|
} |
202 |
|
} |
203 |
|
|
204 |
|
/** |
205 |
< |
* take blocks interruptibly when empty |
205 |
> |
* take removes existing elements until empty, then blocks interruptibly |
206 |
|
*/ |
207 |
< |
public void testTakeFromEmpty() { |
208 |
< |
final LinkedTransferQueue q = new LinkedTransferQueue(); |
209 |
< |
Thread t = new Thread(new Runnable() { |
207 |
> |
public void testBlockingTake() throws InterruptedException { |
208 |
> |
final BlockingQueue q = populatedQueue(SIZE); |
209 |
> |
final CountDownLatch pleaseInterrupt = new CountDownLatch(1); |
210 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
211 |
> |
public void realRun() throws InterruptedException { |
212 |
> |
for (int i = 0; i < SIZE; ++i) { |
213 |
> |
assertEquals(i, q.take()); |
214 |
> |
} |
215 |
|
|
216 |
< |
public void run() { |
216 |
> |
Thread.currentThread().interrupt(); |
217 |
|
try { |
218 |
|
q.take(); |
219 |
< |
threadShouldThrow(); |
220 |
< |
} catch (InterruptedException success) { |
221 |
< |
} |
270 |
< |
} |
271 |
< |
}); |
272 |
< |
try { |
273 |
< |
t.start(); |
274 |
< |
Thread.sleep(SHORT_DELAY_MS); |
275 |
< |
t.interrupt(); |
276 |
< |
t.join(); |
277 |
< |
} catch (Exception e) { |
278 |
< |
unexpectedException(); |
279 |
< |
} |
280 |
< |
} |
219 |
> |
shouldThrow(); |
220 |
> |
} catch (InterruptedException success) {} |
221 |
> |
assertFalse(Thread.interrupted()); |
222 |
|
|
223 |
< |
/** |
283 |
< |
* Take removes existing elements until empty, then blocks interruptibly |
284 |
< |
*/ |
285 |
< |
public void testBlockingTake() { |
286 |
< |
Thread t = new Thread(new Runnable() { |
287 |
< |
|
288 |
< |
public void run() { |
223 |
> |
pleaseInterrupt.countDown(); |
224 |
|
try { |
290 |
– |
LinkedTransferQueue q = populatedQueue(SIZE); |
291 |
– |
for (int i = 0; i < SIZE; ++i) { |
292 |
– |
assertEquals(i, ((Integer) q.take()).intValue()); |
293 |
– |
} |
225 |
|
q.take(); |
226 |
< |
threadShouldThrow(); |
227 |
< |
} catch (InterruptedException success) { |
228 |
< |
} |
229 |
< |
} |
230 |
< |
}); |
231 |
< |
t.start(); |
232 |
< |
try { |
233 |
< |
Thread.sleep(SHORT_DELAY_MS); |
234 |
< |
t.interrupt(); |
304 |
< |
t.join(); |
305 |
< |
} catch (InterruptedException ie) { |
306 |
< |
unexpectedException(); |
307 |
< |
} |
226 |
> |
shouldThrow(); |
227 |
> |
} catch (InterruptedException success) {} |
228 |
> |
assertFalse(Thread.interrupted()); |
229 |
> |
}}); |
230 |
> |
|
231 |
> |
await(pleaseInterrupt); |
232 |
> |
assertThreadStaysAlive(t); |
233 |
> |
t.interrupt(); |
234 |
> |
awaitTermination(t); |
235 |
|
} |
236 |
|
|
237 |
|
/** |
238 |
|
* poll succeeds unless empty |
239 |
|
*/ |
240 |
< |
public void testPoll() { |
241 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
240 |
> |
public void testPoll() throws InterruptedException { |
241 |
> |
LinkedTransferQueue<Integer> q = populatedQueue(SIZE); |
242 |
|
for (int i = 0; i < SIZE; ++i) { |
243 |
< |
assertEquals(i, ((Integer) q.poll()).intValue()); |
243 |
> |
assertEquals(i, (int) q.poll()); |
244 |
|
} |
245 |
|
assertNull(q.poll()); |
246 |
+ |
checkEmpty(q); |
247 |
|
} |
248 |
|
|
249 |
|
/** |
250 |
< |
* timed pool with zero timeout succeeds when non-empty, else times out |
250 |
> |
* timed poll with zero timeout succeeds when non-empty, else times out |
251 |
|
*/ |
252 |
< |
public void testTimedPoll0() { |
253 |
< |
try { |
254 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
255 |
< |
for (int i = 0; i < SIZE; ++i) { |
328 |
< |
assertEquals(i, ((Integer) q.poll(0, TimeUnit.MILLISECONDS)).intValue()); |
329 |
< |
} |
330 |
< |
assertNull(q.poll(0, TimeUnit.MILLISECONDS)); |
331 |
< |
} catch (InterruptedException e) { |
332 |
< |
unexpectedException(); |
252 |
> |
public void testTimedPoll0() throws InterruptedException { |
253 |
> |
LinkedTransferQueue<Integer> q = populatedQueue(SIZE); |
254 |
> |
for (int i = 0; i < SIZE; ++i) { |
255 |
> |
assertEquals(i, (int) q.poll(0, MILLISECONDS)); |
256 |
|
} |
257 |
+ |
assertNull(q.poll(0, MILLISECONDS)); |
258 |
+ |
checkEmpty(q); |
259 |
|
} |
260 |
|
|
261 |
|
/** |
262 |
< |
* timed pool with nonzero timeout succeeds when non-empty, else times out |
262 |
> |
* timed poll with nonzero timeout succeeds when non-empty, else times out |
263 |
|
*/ |
264 |
< |
public void testTimedPoll() { |
265 |
< |
try { |
266 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
267 |
< |
for (int i = 0; i < SIZE; ++i) { |
268 |
< |
assertEquals(i, ((Integer) q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS)).intValue()); |
269 |
< |
} |
270 |
< |
assertNull(q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS)); |
271 |
< |
} catch (InterruptedException e) { |
272 |
< |
unexpectedException(); |
273 |
< |
} |
264 |
> |
public void testTimedPoll() throws InterruptedException { |
265 |
> |
LinkedTransferQueue<Integer> q = populatedQueue(SIZE); |
266 |
> |
for (int i = 0; i < SIZE; ++i) { |
267 |
> |
long startTime = System.nanoTime(); |
268 |
> |
assertEquals(i, (int) q.poll(LONG_DELAY_MS, MILLISECONDS)); |
269 |
> |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
270 |
> |
} |
271 |
> |
long startTime = System.nanoTime(); |
272 |
> |
assertNull(q.poll(timeoutMillis(), MILLISECONDS)); |
273 |
> |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
274 |
> |
checkEmpty(q); |
275 |
|
} |
276 |
|
|
277 |
|
/** |
278 |
|
* Interrupted timed poll throws InterruptedException instead of |
279 |
|
* returning timeout status |
280 |
|
*/ |
281 |
< |
public void testInterruptedTimedPoll() { |
282 |
< |
Thread t = new Thread(new Runnable() { |
283 |
< |
|
284 |
< |
public void run() { |
281 |
> |
public void testInterruptedTimedPoll() throws InterruptedException { |
282 |
> |
final BlockingQueue<Integer> q = populatedQueue(SIZE); |
283 |
> |
final CountDownLatch aboutToWait = new CountDownLatch(1); |
284 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
285 |
> |
public void realRun() throws InterruptedException { |
286 |
> |
for (int i = 0; i < SIZE; ++i) { |
287 |
> |
long t0 = System.nanoTime(); |
288 |
> |
assertEquals(i, (int) q.poll(LONG_DELAY_MS, MILLISECONDS)); |
289 |
> |
assertTrue(millisElapsedSince(t0) < SMALL_DELAY_MS); |
290 |
> |
} |
291 |
> |
long t0 = System.nanoTime(); |
292 |
> |
aboutToWait.countDown(); |
293 |
|
try { |
294 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
295 |
< |
for (int i = 0; i < SIZE; ++i) { |
362 |
< |
threadAssertEquals(i, ((Integer) q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS)).intValue()); |
363 |
< |
} |
364 |
< |
threadAssertNull(q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS)); |
294 |
> |
q.poll(MEDIUM_DELAY_MS, MILLISECONDS); |
295 |
> |
shouldThrow(); |
296 |
|
} catch (InterruptedException success) { |
297 |
+ |
assertTrue(millisElapsedSince(t0) < MEDIUM_DELAY_MS); |
298 |
|
} |
299 |
< |
} |
300 |
< |
}); |
301 |
< |
t.start(); |
302 |
< |
try { |
303 |
< |
Thread.sleep(SHORT_DELAY_MS); |
304 |
< |
t.interrupt(); |
305 |
< |
t.join(); |
374 |
< |
} catch (InterruptedException ie) { |
375 |
< |
unexpectedException(); |
376 |
< |
} |
299 |
> |
}}); |
300 |
> |
|
301 |
> |
aboutToWait.await(); |
302 |
> |
waitForThreadToEnterWaitState(t, SMALL_DELAY_MS); |
303 |
> |
t.interrupt(); |
304 |
> |
awaitTermination(t, MEDIUM_DELAY_MS); |
305 |
> |
checkEmpty(q); |
306 |
|
} |
307 |
|
|
308 |
|
/** |
309 |
< |
* timed poll before a delayed offer fails; after offer succeeds; |
310 |
< |
* on interruption throws |
311 |
< |
*/ |
312 |
< |
public void testTimedPollWithOffer() { |
313 |
< |
final LinkedTransferQueue q = new LinkedTransferQueue(); |
314 |
< |
Thread t = new Thread(new Runnable() { |
315 |
< |
|
316 |
< |
public void run() { |
317 |
< |
try { |
318 |
< |
threadAssertNull(q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS)); |
319 |
< |
q.poll(LONG_DELAY_MS, TimeUnit.MILLISECONDS); |
320 |
< |
q.poll(LONG_DELAY_MS, TimeUnit.MILLISECONDS); |
392 |
< |
threadShouldThrow(); |
393 |
< |
} catch (InterruptedException success) { |
309 |
> |
* timed poll after thread interrupted throws InterruptedException |
310 |
> |
* instead of returning timeout status |
311 |
> |
*/ |
312 |
> |
public void testTimedPollAfterInterrupt() throws InterruptedException { |
313 |
> |
final BlockingQueue<Integer> q = populatedQueue(SIZE); |
314 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
315 |
> |
public void realRun() throws InterruptedException { |
316 |
> |
Thread.currentThread().interrupt(); |
317 |
> |
for (int i = 0; i < SIZE; ++i) { |
318 |
> |
long t0 = System.nanoTime(); |
319 |
> |
assertEquals(i, (int) q.poll(LONG_DELAY_MS, MILLISECONDS)); |
320 |
> |
assertTrue(millisElapsedSince(t0) < SMALL_DELAY_MS); |
321 |
|
} |
322 |
< |
} |
323 |
< |
}); |
324 |
< |
try { |
325 |
< |
t.start(); |
326 |
< |
Thread.sleep(SMALL_DELAY_MS); |
327 |
< |
assertTrue(q.offer(zero, SHORT_DELAY_MS, TimeUnit.MILLISECONDS)); |
328 |
< |
t.interrupt(); |
329 |
< |
t.join(); |
403 |
< |
} catch (Exception e) { |
404 |
< |
unexpectedException(); |
405 |
< |
} |
322 |
> |
try { |
323 |
> |
q.poll(MEDIUM_DELAY_MS, MILLISECONDS); |
324 |
> |
shouldThrow(); |
325 |
> |
} catch (InterruptedException success) {} |
326 |
> |
}}); |
327 |
> |
|
328 |
> |
awaitTermination(t, MEDIUM_DELAY_MS); |
329 |
> |
checkEmpty(q); |
330 |
|
} |
331 |
|
|
332 |
|
/** |
333 |
|
* peek returns next element, or null if empty |
334 |
|
*/ |
335 |
< |
public void testPeek() { |
336 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
335 |
> |
public void testPeek() throws InterruptedException { |
336 |
> |
LinkedTransferQueue<Integer> q = populatedQueue(SIZE); |
337 |
|
for (int i = 0; i < SIZE; ++i) { |
338 |
< |
assertEquals(i, ((Integer) q.peek()).intValue()); |
339 |
< |
q.poll(); |
338 |
> |
assertEquals(i, (int) q.peek()); |
339 |
> |
assertEquals(i, (int) q.poll()); |
340 |
|
assertTrue(q.peek() == null || |
341 |
< |
i != ((Integer) q.peek()).intValue()); |
341 |
> |
i != (int) q.peek()); |
342 |
|
} |
343 |
|
assertNull(q.peek()); |
344 |
+ |
checkEmpty(q); |
345 |
|
} |
346 |
|
|
347 |
|
/** |
348 |
< |
* element returns next element, or throws NSEE if empty |
348 |
> |
* element returns next element, or throws NoSuchElementException if empty |
349 |
|
*/ |
350 |
< |
public void testElement() { |
351 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
350 |
> |
public void testElement() throws InterruptedException { |
351 |
> |
LinkedTransferQueue<Integer> q = populatedQueue(SIZE); |
352 |
|
for (int i = 0; i < SIZE; ++i) { |
353 |
< |
assertEquals(i, ((Integer) q.element()).intValue()); |
354 |
< |
q.poll(); |
353 |
> |
assertEquals(i, (int) q.element()); |
354 |
> |
assertEquals(i, (int) q.poll()); |
355 |
|
} |
356 |
|
try { |
357 |
|
q.element(); |
358 |
|
shouldThrow(); |
359 |
< |
} catch (NoSuchElementException success) { |
360 |
< |
} |
359 |
> |
} catch (NoSuchElementException success) {} |
360 |
> |
checkEmpty(q); |
361 |
|
} |
362 |
|
|
363 |
|
/** |
364 |
< |
* remove removes next element, or throws NSEE if empty |
364 |
> |
* remove removes next element, or throws NoSuchElementException if empty |
365 |
|
*/ |
366 |
< |
public void testRemove() { |
367 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
366 |
> |
public void testRemove() throws InterruptedException { |
367 |
> |
LinkedTransferQueue<Integer> q = populatedQueue(SIZE); |
368 |
|
for (int i = 0; i < SIZE; ++i) { |
369 |
< |
assertEquals(i, ((Integer) q.remove()).intValue()); |
369 |
> |
assertEquals(i, (int) q.remove()); |
370 |
|
} |
371 |
|
try { |
372 |
|
q.remove(); |
373 |
|
shouldThrow(); |
374 |
< |
} catch (NoSuchElementException success) { |
375 |
< |
} |
451 |
< |
} |
452 |
< |
|
453 |
< |
/** |
454 |
< |
* remove(x) removes x and returns true if present |
455 |
< |
*/ |
456 |
< |
public void testRemoveElement() { |
457 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
458 |
< |
for (int i = 1; i < SIZE; i += 2) { |
459 |
< |
assertTrue(q.remove(new Integer(i))); |
460 |
< |
} |
461 |
< |
for (int i = 0; i < SIZE; i += 2) { |
462 |
< |
assertTrue(q.remove(new Integer(i))); |
463 |
< |
assertFalse(q.remove(new Integer(i + 1))); |
464 |
< |
} |
465 |
< |
assertTrue(q.isEmpty()); |
374 |
> |
} catch (NoSuchElementException success) {} |
375 |
> |
checkEmpty(q); |
376 |
|
} |
377 |
|
|
378 |
|
/** |
379 |
|
* An add following remove(x) succeeds |
380 |
|
*/ |
381 |
< |
public void testRemoveElementAndAdd() { |
382 |
< |
try { |
383 |
< |
LinkedTransferQueue q = new LinkedTransferQueue(); |
384 |
< |
assertTrue(q.add(new Integer(1))); |
385 |
< |
assertTrue(q.add(new Integer(2))); |
386 |
< |
assertTrue(q.remove(new Integer(1))); |
387 |
< |
assertTrue(q.remove(new Integer(2))); |
388 |
< |
assertTrue(q.add(new Integer(3))); |
479 |
< |
assertTrue(q.take() != null); |
480 |
< |
} catch (Exception e) { |
481 |
< |
unexpectedException(); |
482 |
< |
} |
381 |
> |
public void testRemoveElementAndAdd() throws InterruptedException { |
382 |
> |
LinkedTransferQueue q = new LinkedTransferQueue(); |
383 |
> |
assertTrue(q.add(one)); |
384 |
> |
assertTrue(q.add(two)); |
385 |
> |
assertTrue(q.remove(one)); |
386 |
> |
assertTrue(q.remove(two)); |
387 |
> |
assertTrue(q.add(three)); |
388 |
> |
assertSame(q.take(), three); |
389 |
|
} |
390 |
|
|
391 |
|
/** |
392 |
|
* contains(x) reports true when elements added but not yet removed |
393 |
|
*/ |
394 |
|
public void testContains() { |
395 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
395 |
> |
LinkedTransferQueue<Integer> q = populatedQueue(SIZE); |
396 |
|
for (int i = 0; i < SIZE; ++i) { |
397 |
< |
assertTrue(q.contains(new Integer(i))); |
398 |
< |
q.poll(); |
399 |
< |
assertFalse(q.contains(new Integer(i))); |
397 |
> |
assertTrue(q.contains(i)); |
398 |
> |
assertEquals(i, (int) q.poll()); |
399 |
> |
assertFalse(q.contains(i)); |
400 |
|
} |
401 |
|
} |
402 |
|
|
403 |
|
/** |
404 |
|
* clear removes all elements |
405 |
|
*/ |
406 |
< |
public void testClear() { |
406 |
> |
public void testClear() throws InterruptedException { |
407 |
|
LinkedTransferQueue q = populatedQueue(SIZE); |
502 |
– |
int remainingCapacity = q.remainingCapacity(); |
408 |
|
q.clear(); |
409 |
< |
assertTrue(q.isEmpty()); |
410 |
< |
assertEquals(0, q.size()); |
506 |
< |
assertEquals(remainingCapacity, q.remainingCapacity()); |
409 |
> |
checkEmpty(q); |
410 |
> |
assertEquals(Integer.MAX_VALUE, q.remainingCapacity()); |
411 |
|
q.add(one); |
412 |
|
assertFalse(q.isEmpty()); |
413 |
+ |
assertEquals(1, q.size()); |
414 |
|
assertTrue(q.contains(one)); |
415 |
|
q.clear(); |
416 |
< |
assertTrue(q.isEmpty()); |
416 |
> |
checkEmpty(q); |
417 |
|
} |
418 |
|
|
419 |
|
/** |
420 |
|
* containsAll(c) is true when c contains a subset of elements |
421 |
|
*/ |
422 |
|
public void testContainsAll() { |
423 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
424 |
< |
LinkedTransferQueue p = new LinkedTransferQueue(); |
423 |
> |
LinkedTransferQueue<Integer> q = populatedQueue(SIZE); |
424 |
> |
LinkedTransferQueue<Integer> p = new LinkedTransferQueue<Integer>(); |
425 |
|
for (int i = 0; i < SIZE; ++i) { |
426 |
|
assertTrue(q.containsAll(p)); |
427 |
|
assertFalse(p.containsAll(q)); |
428 |
< |
p.add(new Integer(i)); |
428 |
> |
p.add(i); |
429 |
|
} |
430 |
|
assertTrue(p.containsAll(q)); |
431 |
|
} |
432 |
|
|
433 |
|
/** |
434 |
< |
* retainAll(c) retains only those elements of c and reports true if changed |
434 |
> |
* retainAll(c) retains only those elements of c and reports true |
435 |
> |
* if changed |
436 |
|
*/ |
437 |
|
public void testRetainAll() { |
438 |
|
LinkedTransferQueue q = populatedQueue(SIZE); |
451 |
|
} |
452 |
|
|
453 |
|
/** |
454 |
< |
* removeAll(c) removes only those elements of c and reports true if changed |
454 |
> |
* removeAll(c) removes only those elements of c and reports true |
455 |
> |
* if changed |
456 |
|
*/ |
457 |
|
public void testRemoveAll() { |
458 |
|
for (int i = 1; i < SIZE; ++i) { |
461 |
|
assertTrue(q.removeAll(p)); |
462 |
|
assertEquals(SIZE - i, q.size()); |
463 |
|
for (int j = 0; j < i; ++j) { |
464 |
< |
Integer I = (Integer) (p.remove()); |
558 |
< |
assertFalse(q.contains(I)); |
464 |
> |
assertFalse(q.contains(p.remove())); |
465 |
|
} |
466 |
|
} |
467 |
|
} |
468 |
|
|
469 |
|
/** |
470 |
< |
* toArray contains all elements |
470 |
> |
* toArray() contains all elements in FIFO order |
471 |
|
*/ |
472 |
|
public void testToArray() { |
473 |
|
LinkedTransferQueue q = populatedQueue(SIZE); |
474 |
|
Object[] o = q.toArray(); |
475 |
< |
try { |
476 |
< |
for (int i = 0; i < o.length; i++) { |
571 |
< |
assertEquals(o[i], q.take()); |
572 |
< |
} |
573 |
< |
} catch (InterruptedException e) { |
574 |
< |
unexpectedException(); |
475 |
> |
for (int i = 0; i < o.length; i++) { |
476 |
> |
assertSame(o[i], q.poll()); |
477 |
|
} |
478 |
|
} |
479 |
|
|
480 |
|
/** |
481 |
< |
* toArray(a) contains all elements |
481 |
> |
* toArray(a) contains all elements in FIFO order |
482 |
|
*/ |
483 |
|
public void testToArray2() { |
484 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
484 |
> |
LinkedTransferQueue<Integer> q = populatedQueue(SIZE); |
485 |
|
Integer[] ints = new Integer[SIZE]; |
486 |
< |
ints = (Integer[]) q.toArray(ints); |
487 |
< |
try { |
488 |
< |
for (int i = 0; i < ints.length; i++) { |
489 |
< |
assertEquals(ints[i], q.take()); |
588 |
< |
} |
589 |
< |
} catch (InterruptedException e) { |
590 |
< |
unexpectedException(); |
591 |
< |
} |
592 |
< |
} |
593 |
< |
|
594 |
< |
/** |
595 |
< |
* toArray(null) throws NPE |
596 |
< |
*/ |
597 |
< |
public void testToArray_BadArg() { |
598 |
< |
try { |
599 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
600 |
< |
Object o[] = q.toArray(null); |
601 |
< |
shouldThrow(); |
602 |
< |
} catch (NullPointerException success) { |
486 |
> |
Integer[] array = q.toArray(ints); |
487 |
> |
assertSame(ints, array); |
488 |
> |
for (int i = 0; i < ints.length; i++) { |
489 |
> |
assertSame(ints[i], q.poll()); |
490 |
|
} |
491 |
|
} |
492 |
|
|
493 |
|
/** |
494 |
< |
* toArray with incompatible array type throws CCE |
494 |
> |
* toArray(incompatible array type) throws ArrayStoreException |
495 |
|
*/ |
496 |
|
public void testToArray1_BadArg() { |
497 |
+ |
LinkedTransferQueue q = populatedQueue(SIZE); |
498 |
|
try { |
499 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
612 |
< |
Object o[] = q.toArray(new String[10]); |
499 |
> |
q.toArray(new String[10]); |
500 |
|
shouldThrow(); |
501 |
< |
} catch (ArrayStoreException success) { |
615 |
< |
} |
501 |
> |
} catch (ArrayStoreException success) {} |
502 |
|
} |
503 |
|
|
504 |
|
/** |
505 |
|
* iterator iterates through all elements |
506 |
|
*/ |
507 |
< |
public void testIterator() { |
507 |
> |
public void testIterator() throws InterruptedException { |
508 |
|
LinkedTransferQueue q = populatedQueue(SIZE); |
509 |
|
Iterator it = q.iterator(); |
510 |
< |
try { |
511 |
< |
while (it.hasNext()) { |
512 |
< |
assertEquals(it.next(), q.take()); |
513 |
< |
} |
514 |
< |
} catch (InterruptedException e) { |
515 |
< |
unexpectedException(); |
516 |
< |
} |
510 |
> |
int i; |
511 |
> |
for (i = 0; it.hasNext(); i++) |
512 |
> |
assertTrue(q.contains(it.next())); |
513 |
> |
assertEquals(i, SIZE); |
514 |
> |
assertIteratorExhausted(it); |
515 |
> |
|
516 |
> |
it = q.iterator(); |
517 |
> |
for (i = 0; it.hasNext(); i++) |
518 |
> |
assertEquals(it.next(), q.take()); |
519 |
> |
assertEquals(i, SIZE); |
520 |
> |
assertIteratorExhausted(it); |
521 |
|
} |
522 |
|
|
523 |
|
/** |
524 |
< |
* iterator.remove removes current element |
524 |
> |
* iterator of empty collection has no elements |
525 |
> |
*/ |
526 |
> |
public void testEmptyIterator() { |
527 |
> |
assertIteratorExhausted(new LinkedTransferQueue().iterator()); |
528 |
> |
} |
529 |
> |
|
530 |
> |
/** |
531 |
> |
* iterator.remove() removes current element |
532 |
|
*/ |
533 |
|
public void testIteratorRemove() { |
534 |
|
final LinkedTransferQueue q = new LinkedTransferQueue(); |
541 |
|
it.remove(); |
542 |
|
|
543 |
|
it = q.iterator(); |
544 |
< |
assertEquals(it.next(), one); |
545 |
< |
assertEquals(it.next(), three); |
544 |
> |
assertSame(it.next(), one); |
545 |
> |
assertSame(it.next(), three); |
546 |
|
assertFalse(it.hasNext()); |
547 |
|
} |
548 |
|
|
550 |
|
* iterator ordering is FIFO |
551 |
|
*/ |
552 |
|
public void testIteratorOrdering() { |
553 |
< |
final LinkedTransferQueue q = new LinkedTransferQueue(); |
554 |
< |
int remainingCapacity = q.remainingCapacity(); |
553 |
> |
final LinkedTransferQueue<Integer> q |
554 |
> |
= new LinkedTransferQueue<Integer>(); |
555 |
> |
assertEquals(Integer.MAX_VALUE, q.remainingCapacity()); |
556 |
|
q.add(one); |
557 |
|
q.add(two); |
558 |
|
q.add(three); |
559 |
< |
assertEquals(remainingCapacity, q.remainingCapacity()); |
559 |
> |
assertEquals(Integer.MAX_VALUE, q.remainingCapacity()); |
560 |
|
int k = 0; |
561 |
< |
for (Iterator it = q.iterator(); it.hasNext();) { |
562 |
< |
int i = ((Integer) (it.next())).intValue(); |
665 |
< |
assertEquals(++k, i); |
561 |
> |
for (Integer n : q) { |
562 |
> |
assertEquals(++k, (int) n); |
563 |
|
} |
564 |
|
assertEquals(3, k); |
565 |
|
} |
572 |
|
q.add(one); |
573 |
|
q.add(two); |
574 |
|
q.add(three); |
575 |
< |
try { |
576 |
< |
for (Iterator it = q.iterator(); it.hasNext();) { |
577 |
< |
q.remove(); |
681 |
< |
it.next(); |
682 |
< |
} |
683 |
< |
} catch (ConcurrentModificationException e) { |
684 |
< |
unexpectedException(); |
575 |
> |
for (Iterator it = q.iterator(); it.hasNext();) { |
576 |
> |
q.remove(); |
577 |
> |
it.next(); |
578 |
|
} |
579 |
|
assertEquals(0, q.size()); |
580 |
|
} |
586 |
|
LinkedTransferQueue q = populatedQueue(SIZE); |
587 |
|
String s = q.toString(); |
588 |
|
for (int i = 0; i < SIZE; ++i) { |
589 |
< |
assertTrue(s.indexOf(String.valueOf(i)) >= 0); |
589 |
> |
assertTrue(s.contains(String.valueOf(i))); |
590 |
|
} |
591 |
|
} |
592 |
|
|
595 |
|
*/ |
596 |
|
public void testOfferInExecutor() { |
597 |
|
final LinkedTransferQueue q = new LinkedTransferQueue(); |
598 |
< |
q.add(one); |
706 |
< |
q.add(two); |
598 |
> |
final CheckedBarrier threadsStarted = new CheckedBarrier(2); |
599 |
|
ExecutorService executor = Executors.newFixedThreadPool(2); |
708 |
– |
executor.execute(new Runnable() { |
709 |
– |
|
710 |
– |
public void run() { |
711 |
– |
try { |
712 |
– |
threadAssertTrue(q.offer(three, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS)); |
713 |
– |
} catch (Exception e) { |
714 |
– |
threadUnexpectedException(); |
715 |
– |
} |
716 |
– |
} |
717 |
– |
}); |
600 |
|
|
601 |
< |
executor.execute(new Runnable() { |
602 |
< |
|
603 |
< |
public void run() { |
604 |
< |
try { |
605 |
< |
Thread.sleep(SMALL_DELAY_MS); |
606 |
< |
threadAssertEquals(one, q.take()); |
607 |
< |
} catch (InterruptedException e) { |
608 |
< |
threadUnexpectedException(); |
609 |
< |
} |
610 |
< |
} |
611 |
< |
}); |
601 |
> |
executor.execute(new CheckedRunnable() { |
602 |
> |
public void realRun() throws InterruptedException { |
603 |
> |
threadsStarted.await(); |
604 |
> |
assertTrue(q.offer(one, LONG_DELAY_MS, MILLISECONDS)); |
605 |
> |
}}); |
606 |
> |
|
607 |
> |
executor.execute(new CheckedRunnable() { |
608 |
> |
public void realRun() throws InterruptedException { |
609 |
> |
threadsStarted.await(); |
610 |
> |
assertSame(one, q.take()); |
611 |
> |
checkEmpty(q); |
612 |
> |
}}); |
613 |
|
|
614 |
|
joinPool(executor); |
615 |
|
} |
616 |
|
|
617 |
|
/** |
618 |
< |
* poll retrieves elements across Executor threads |
618 |
> |
* timed poll retrieves elements across Executor threads |
619 |
|
*/ |
620 |
|
public void testPollInExecutor() { |
621 |
|
final LinkedTransferQueue q = new LinkedTransferQueue(); |
622 |
+ |
final CheckedBarrier threadsStarted = new CheckedBarrier(2); |
623 |
|
ExecutorService executor = Executors.newFixedThreadPool(2); |
740 |
– |
executor.execute(new Runnable() { |
741 |
– |
|
742 |
– |
public void run() { |
743 |
– |
threadAssertNull(q.poll()); |
744 |
– |
try { |
745 |
– |
threadAssertTrue(null != q.poll(MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS)); |
746 |
– |
threadAssertTrue(q.isEmpty()); |
747 |
– |
} catch (InterruptedException e) { |
748 |
– |
threadUnexpectedException(); |
749 |
– |
} |
750 |
– |
} |
751 |
– |
}); |
624 |
|
|
625 |
< |
executor.execute(new Runnable() { |
626 |
< |
|
627 |
< |
public void run() { |
628 |
< |
try { |
629 |
< |
Thread.sleep(SMALL_DELAY_MS); |
630 |
< |
q.put(one); |
631 |
< |
} catch (InterruptedException e) { |
632 |
< |
threadUnexpectedException(); |
633 |
< |
} |
634 |
< |
} |
635 |
< |
}); |
625 |
> |
executor.execute(new CheckedRunnable() { |
626 |
> |
public void realRun() throws InterruptedException { |
627 |
> |
assertNull(q.poll()); |
628 |
> |
threadsStarted.await(); |
629 |
> |
assertSame(one, q.poll(LONG_DELAY_MS, MILLISECONDS)); |
630 |
> |
checkEmpty(q); |
631 |
> |
}}); |
632 |
> |
|
633 |
> |
executor.execute(new CheckedRunnable() { |
634 |
> |
public void realRun() throws InterruptedException { |
635 |
> |
threadsStarted.await(); |
636 |
> |
q.put(one); |
637 |
> |
}}); |
638 |
|
|
639 |
|
joinPool(executor); |
640 |
|
} |
642 |
|
/** |
643 |
|
* A deserialized serialized queue has same elements in same order |
644 |
|
*/ |
645 |
< |
public void testSerialization() { |
646 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
647 |
< |
|
648 |
< |
try { |
649 |
< |
ByteArrayOutputStream bout = new ByteArrayOutputStream(10000); |
650 |
< |
ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout)); |
651 |
< |
out.writeObject(q); |
652 |
< |
out.close(); |
653 |
< |
|
654 |
< |
ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray()); |
655 |
< |
ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin)); |
782 |
< |
LinkedTransferQueue r = (LinkedTransferQueue) in.readObject(); |
783 |
< |
|
784 |
< |
assertEquals(q.size(), r.size()); |
785 |
< |
while (!q.isEmpty()) { |
786 |
< |
assertEquals(q.remove(), r.remove()); |
787 |
< |
} |
788 |
< |
} catch (Exception e) { |
789 |
< |
unexpectedException(); |
790 |
< |
} |
791 |
< |
} |
792 |
< |
|
793 |
< |
/** |
794 |
< |
* drainTo(null) throws NPE |
795 |
< |
*/ |
796 |
< |
public void testDrainToNull() { |
797 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
798 |
< |
try { |
799 |
< |
q.drainTo(null); |
800 |
< |
shouldThrow(); |
801 |
< |
} catch (NullPointerException success) { |
802 |
< |
} |
803 |
< |
} |
804 |
< |
|
805 |
< |
/** |
806 |
< |
* drainTo(this) throws IAE |
807 |
< |
*/ |
808 |
< |
public void testDrainToSelf() { |
809 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
810 |
< |
try { |
811 |
< |
q.drainTo(q); |
812 |
< |
shouldThrow(); |
813 |
< |
} catch (IllegalArgumentException success) { |
645 |
> |
public void testSerialization() throws Exception { |
646 |
> |
Queue x = populatedQueue(SIZE); |
647 |
> |
Queue y = serialClone(x); |
648 |
> |
|
649 |
> |
assertNotSame(y, x); |
650 |
> |
assertEquals(x.size(), y.size()); |
651 |
> |
assertEquals(x.toString(), y.toString()); |
652 |
> |
assertTrue(Arrays.equals(x.toArray(), y.toArray())); |
653 |
> |
while (!x.isEmpty()) { |
654 |
> |
assertFalse(y.isEmpty()); |
655 |
> |
assertEquals(x.remove(), y.remove()); |
656 |
|
} |
657 |
+ |
assertTrue(y.isEmpty()); |
658 |
|
} |
659 |
|
|
660 |
|
/** |
664 |
|
LinkedTransferQueue q = populatedQueue(SIZE); |
665 |
|
ArrayList l = new ArrayList(); |
666 |
|
q.drainTo(l); |
667 |
< |
assertEquals(q.size(), 0); |
668 |
< |
assertEquals(l.size(), SIZE); |
667 |
> |
assertEquals(0, q.size()); |
668 |
> |
assertEquals(SIZE, l.size()); |
669 |
|
for (int i = 0; i < SIZE; ++i) { |
670 |
< |
assertEquals(l.get(i), new Integer(i)); |
670 |
> |
assertEquals(i, l.get(i)); |
671 |
|
} |
672 |
|
q.add(zero); |
673 |
|
q.add(one); |
676 |
|
assertTrue(q.contains(one)); |
677 |
|
l.clear(); |
678 |
|
q.drainTo(l); |
679 |
< |
assertEquals(q.size(), 0); |
680 |
< |
assertEquals(l.size(), 2); |
679 |
> |
assertEquals(0, q.size()); |
680 |
> |
assertEquals(2, l.size()); |
681 |
|
for (int i = 0; i < 2; ++i) { |
682 |
< |
assertEquals(l.get(i), new Integer(i)); |
682 |
> |
assertEquals(i, l.get(i)); |
683 |
|
} |
684 |
|
} |
685 |
|
|
686 |
|
/** |
687 |
< |
* drainTo empties full queue, unblocking a waiting put. |
687 |
> |
* drainTo(c) empties full queue, unblocking a waiting put. |
688 |
|
*/ |
689 |
< |
public void testDrainToWithActivePut() { |
689 |
> |
public void testDrainToWithActivePut() throws InterruptedException { |
690 |
|
final LinkedTransferQueue q = populatedQueue(SIZE); |
691 |
< |
Thread t = new Thread(new Runnable() { |
692 |
< |
|
693 |
< |
public void run() { |
694 |
< |
try { |
695 |
< |
q.put(new Integer(SIZE + 1)); |
696 |
< |
} catch (Exception ie) { |
697 |
< |
threadUnexpectedException(); |
698 |
< |
} |
699 |
< |
} |
700 |
< |
}); |
701 |
< |
try { |
859 |
< |
t.start(); |
860 |
< |
ArrayList l = new ArrayList(); |
861 |
< |
q.drainTo(l); |
862 |
< |
assertTrue(l.size() >= SIZE); |
863 |
< |
for (int i = 0; i < SIZE; ++i) { |
864 |
< |
assertEquals(l.get(i), new Integer(i)); |
865 |
< |
} |
866 |
< |
t.join(); |
867 |
< |
assertTrue(q.size() + l.size() >= SIZE); |
868 |
< |
} catch (Exception e) { |
869 |
< |
unexpectedException(); |
870 |
< |
} |
871 |
< |
} |
872 |
< |
|
873 |
< |
/** |
874 |
< |
* drainTo(null, n) throws NPE |
875 |
< |
*/ |
876 |
< |
public void testDrainToNullN() { |
877 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
878 |
< |
try { |
879 |
< |
q.drainTo(null, 0); |
880 |
< |
shouldThrow(); |
881 |
< |
} catch (NullPointerException success) { |
882 |
< |
} |
883 |
< |
} |
884 |
< |
|
885 |
< |
/** |
886 |
< |
* drainTo(this, n) throws IAE |
887 |
< |
*/ |
888 |
< |
public void testDrainToSelfN() { |
889 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
890 |
< |
try { |
891 |
< |
q.drainTo(q, 0); |
892 |
< |
shouldThrow(); |
893 |
< |
} catch (IllegalArgumentException success) { |
894 |
< |
} |
691 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
692 |
> |
public void realRun() { |
693 |
> |
q.put(SIZE + 1); |
694 |
> |
}}); |
695 |
> |
ArrayList l = new ArrayList(); |
696 |
> |
q.drainTo(l); |
697 |
> |
assertTrue(l.size() >= SIZE); |
698 |
> |
for (int i = 0; i < SIZE; ++i) |
699 |
> |
assertEquals(i, l.get(i)); |
700 |
> |
awaitTermination(t, MEDIUM_DELAY_MS); |
701 |
> |
assertTrue(q.size() + l.size() >= SIZE); |
702 |
|
} |
703 |
|
|
704 |
|
/** |
705 |
< |
* drainTo(c, n) empties first max {n, size} elements of queue into c |
705 |
> |
* drainTo(c, n) empties first min(n, size) elements of queue into c |
706 |
|
*/ |
707 |
|
public void testDrainToN() { |
708 |
|
LinkedTransferQueue q = new LinkedTransferQueue(); |
709 |
|
for (int i = 0; i < SIZE + 2; ++i) { |
710 |
|
for (int j = 0; j < SIZE; j++) { |
711 |
< |
assertTrue(q.offer(new Integer(j))); |
711 |
> |
assertTrue(q.offer(j)); |
712 |
|
} |
713 |
|
ArrayList l = new ArrayList(); |
714 |
|
q.drainTo(l, i); |
715 |
|
int k = (i < SIZE) ? i : SIZE; |
716 |
< |
assertEquals(l.size(), k); |
717 |
< |
assertEquals(q.size(), SIZE - k); |
718 |
< |
for (int j = 0; j < k; ++j) { |
719 |
< |
assertEquals(l.get(j), new Integer(j)); |
720 |
< |
} |
914 |
< |
while (q.poll() != null); |
716 |
> |
assertEquals(k, l.size()); |
717 |
> |
assertEquals(SIZE - k, q.size()); |
718 |
> |
for (int j = 0; j < k; ++j) |
719 |
> |
assertEquals(j, l.get(j)); |
720 |
> |
do {} while (q.poll() != null); |
721 |
|
} |
722 |
|
} |
723 |
|
|
724 |
|
/** |
725 |
< |
* poll and take should decrement the waiting consumer count |
725 |
> |
* timed poll() or take() increments the waiting consumer count; |
726 |
> |
* offer(e) decrements the waiting consumer count |
727 |
|
*/ |
728 |
< |
public void testWaitingConsumer() { |
729 |
< |
try { |
730 |
< |
final LinkedTransferQueue q = new LinkedTransferQueue(); |
731 |
< |
final ConsumerObserver waiting = new ConsumerObserver(); |
732 |
< |
new Thread(new Runnable() { |
926 |
< |
|
927 |
< |
public void run() { |
928 |
< |
try { |
929 |
< |
threadAssertTrue(q.hasWaitingConsumer()); |
930 |
< |
waiting.setWaitingConsumer(q.getWaitingConsumerCount()); |
931 |
< |
threadAssertTrue(q.offer(new Object())); |
932 |
< |
} catch (Exception ex) { |
933 |
< |
threadUnexpectedException(); |
934 |
< |
} |
728 |
> |
public void testWaitingConsumer() throws InterruptedException { |
729 |
> |
final LinkedTransferQueue q = new LinkedTransferQueue(); |
730 |
> |
assertEquals(0, q.getWaitingConsumerCount()); |
731 |
> |
assertFalse(q.hasWaitingConsumer()); |
732 |
> |
final CountDownLatch threadStarted = new CountDownLatch(1); |
733 |
|
|
734 |
< |
} |
735 |
< |
}).start(); |
736 |
< |
assertTrue(q.poll(LONG_DELAY_MS, TimeUnit.MILLISECONDS) != null); |
737 |
< |
assertTrue(q.getWaitingConsumerCount() < waiting.getWaitingConsumers()); |
738 |
< |
} catch (Exception ex) { |
739 |
< |
this.unexpectedException(); |
740 |
< |
} |
734 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
735 |
> |
public void realRun() throws InterruptedException { |
736 |
> |
threadStarted.countDown(); |
737 |
> |
assertSame(one, q.poll(LONG_DELAY_MS, MILLISECONDS)); |
738 |
> |
assertEquals(0, q.getWaitingConsumerCount()); |
739 |
> |
assertFalse(q.hasWaitingConsumer()); |
740 |
> |
}}); |
741 |
> |
|
742 |
> |
threadStarted.await(); |
743 |
> |
waitForThreadToEnterWaitState(t, SMALL_DELAY_MS); |
744 |
> |
assertEquals(1, q.getWaitingConsumerCount()); |
745 |
> |
assertTrue(q.hasWaitingConsumer()); |
746 |
> |
|
747 |
> |
assertTrue(q.offer(one)); |
748 |
> |
assertEquals(0, q.getWaitingConsumerCount()); |
749 |
> |
assertFalse(q.hasWaitingConsumer()); |
750 |
> |
|
751 |
> |
awaitTermination(t, MEDIUM_DELAY_MS); |
752 |
|
} |
753 |
|
|
754 |
|
/** |
755 |
< |
* Inserts null into transfer throws NPE |
755 |
> |
* transfer(null) throws NullPointerException |
756 |
|
*/ |
757 |
< |
public void testTransfer1() { |
757 |
> |
public void testTransfer1() throws InterruptedException { |
758 |
|
try { |
759 |
|
LinkedTransferQueue q = new LinkedTransferQueue(); |
760 |
|
q.transfer(null); |
761 |
|
shouldThrow(); |
762 |
< |
} catch (NullPointerException ex) { |
954 |
< |
} catch (Exception ex) { |
955 |
< |
this.unexpectedException(); |
956 |
< |
} |
762 |
> |
} catch (NullPointerException success) {} |
763 |
|
} |
764 |
|
|
765 |
|
/** |
766 |
< |
* transfer attempts to insert into the queue then wait until that |
767 |
< |
* object is removed via take or poll. |
766 |
> |
* transfer waits until a poll occurs. The transfered element |
767 |
> |
* is returned by this associated poll. |
768 |
|
*/ |
769 |
< |
public void testTransfer2() { |
770 |
< |
final LinkedTransferQueue<Integer> q = new LinkedTransferQueue<Integer>(); |
771 |
< |
new Thread(new Runnable() { |
769 |
> |
public void testTransfer2() throws InterruptedException { |
770 |
> |
final LinkedTransferQueue<Integer> q |
771 |
> |
= new LinkedTransferQueue<Integer>(); |
772 |
> |
final CountDownLatch threadStarted = new CountDownLatch(1); |
773 |
|
|
774 |
< |
public void run() { |
775 |
< |
try { |
776 |
< |
q.transfer(new Integer(SIZE)); |
777 |
< |
threadAssertTrue(q.isEmpty()); |
778 |
< |
} catch (Exception ex) { |
779 |
< |
threadUnexpectedException(); |
973 |
< |
} |
974 |
< |
} |
975 |
< |
}).start(); |
774 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
775 |
> |
public void realRun() throws InterruptedException { |
776 |
> |
threadStarted.countDown(); |
777 |
> |
q.transfer(five); |
778 |
> |
checkEmpty(q); |
779 |
> |
}}); |
780 |
|
|
781 |
< |
try { |
782 |
< |
Thread.sleep(SHORT_DELAY_MS); |
783 |
< |
assertEquals(1, q.size()); |
784 |
< |
q.poll(); |
785 |
< |
assertTrue(q.isEmpty()); |
786 |
< |
} catch (Exception ex) { |
983 |
< |
this.unexpectedException(); |
984 |
< |
} |
781 |
> |
threadStarted.await(); |
782 |
> |
waitForThreadToEnterWaitState(t, SMALL_DELAY_MS); |
783 |
> |
assertEquals(1, q.size()); |
784 |
> |
assertSame(five, q.poll()); |
785 |
> |
checkEmpty(q); |
786 |
> |
awaitTermination(t, MEDIUM_DELAY_MS); |
787 |
|
} |
788 |
|
|
789 |
|
/** |
790 |
< |
* transfer will attempt to transfer in fifo order and continue |
791 |
< |
* waiting if the element being transfered is not polled or taken |
792 |
< |
*/ |
793 |
< |
public void testTransfer3() { |
794 |
< |
final LinkedTransferQueue<Integer> q = new LinkedTransferQueue<Integer>(); |
795 |
< |
new Thread(new Runnable() { |
796 |
< |
public void run() { |
797 |
< |
try { |
798 |
< |
Integer i; |
799 |
< |
q.transfer((i = new Integer(SIZE + 1))); |
800 |
< |
threadAssertTrue(!q.contains(i)); |
801 |
< |
threadAssertEquals(1, q.size()); |
802 |
< |
} catch (Exception ex) { |
803 |
< |
threadUnexpectedException(); |
804 |
< |
} |
805 |
< |
} |
806 |
< |
}).start(); |
807 |
< |
Thread interruptedThread = |
808 |
< |
new Thread(new Runnable() { |
809 |
< |
public void run() { |
810 |
< |
try { |
811 |
< |
q.transfer(new Integer(SIZE)); |
812 |
< |
threadShouldThrow(); |
813 |
< |
} catch (InterruptedException ex) { |
814 |
< |
} |
815 |
< |
} |
816 |
< |
}); |
817 |
< |
interruptedThread.start(); |
818 |
< |
try { |
819 |
< |
Thread.sleep(LONG_DELAY_MS); |
1018 |
< |
assertEquals(2, q.size()); |
1019 |
< |
q.poll(); |
1020 |
< |
Thread.sleep(LONG_DELAY_MS); |
1021 |
< |
interruptedThread.interrupt(); |
1022 |
< |
assertEquals(1, q.size()); |
1023 |
< |
} catch (Exception ex) { |
1024 |
< |
this.unexpectedException(); |
1025 |
< |
} |
790 |
> |
* transfer waits until a poll occurs, and then transfers in fifo order |
791 |
> |
*/ |
792 |
> |
public void testTransfer3() throws InterruptedException { |
793 |
> |
final LinkedTransferQueue<Integer> q |
794 |
> |
= new LinkedTransferQueue<Integer>(); |
795 |
> |
|
796 |
> |
Thread first = newStartedThread(new CheckedRunnable() { |
797 |
> |
public void realRun() throws InterruptedException { |
798 |
> |
q.transfer(four); |
799 |
> |
assertTrue(!q.contains(four)); |
800 |
> |
assertEquals(1, q.size()); |
801 |
> |
}}); |
802 |
> |
|
803 |
> |
Thread interruptedThread = newStartedThread( |
804 |
> |
new CheckedInterruptedRunnable() { |
805 |
> |
public void realRun() throws InterruptedException { |
806 |
> |
while (q.isEmpty()) |
807 |
> |
Thread.yield(); |
808 |
> |
q.transfer(five); |
809 |
> |
}}); |
810 |
> |
|
811 |
> |
while (q.size() < 2) |
812 |
> |
Thread.yield(); |
813 |
> |
assertEquals(2, q.size()); |
814 |
> |
assertSame(four, q.poll()); |
815 |
> |
first.join(); |
816 |
> |
assertEquals(1, q.size()); |
817 |
> |
interruptedThread.interrupt(); |
818 |
> |
interruptedThread.join(); |
819 |
> |
checkEmpty(q); |
820 |
|
} |
821 |
|
|
822 |
|
/** |
823 |
< |
* transfer will wait as long as a poll or take occurs if one does occur |
824 |
< |
* the waiting is finished and the thread that tries to poll/take |
1031 |
< |
* wins in retrieving the element |
823 |
> |
* transfer waits until a poll occurs, at which point the polling |
824 |
> |
* thread returns the element |
825 |
|
*/ |
826 |
< |
public void testTransfer4() { |
826 |
> |
public void testTransfer4() throws InterruptedException { |
827 |
|
final LinkedTransferQueue q = new LinkedTransferQueue(); |
1035 |
– |
new Thread(new Runnable() { |
828 |
|
|
829 |
< |
public void run() { |
830 |
< |
try { |
831 |
< |
q.transfer(new Integer(four)); |
832 |
< |
threadAssertFalse(q.contains(new Integer(four))); |
833 |
< |
threadAssertEquals(new Integer(three), q.poll()); |
834 |
< |
} catch (Exception ex) { |
835 |
< |
threadUnexpectedException(); |
836 |
< |
} |
837 |
< |
} |
838 |
< |
}).start(); |
839 |
< |
try { |
840 |
< |
Thread.sleep(MEDIUM_DELAY_MS); |
841 |
< |
assertTrue(q.offer(three)); |
842 |
< |
assertEquals(new Integer(four), q.poll()); |
1051 |
< |
} catch (Exception ex) { |
1052 |
< |
this.unexpectedException(); |
1053 |
< |
} |
829 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
830 |
> |
public void realRun() throws InterruptedException { |
831 |
> |
q.transfer(four); |
832 |
> |
assertFalse(q.contains(four)); |
833 |
> |
assertSame(three, q.poll()); |
834 |
> |
}}); |
835 |
> |
|
836 |
> |
while (q.isEmpty()) |
837 |
> |
Thread.yield(); |
838 |
> |
assertFalse(q.isEmpty()); |
839 |
> |
assertEquals(1, q.size()); |
840 |
> |
assertTrue(q.offer(three)); |
841 |
> |
assertSame(four, q.poll()); |
842 |
> |
awaitTermination(t, MEDIUM_DELAY_MS); |
843 |
|
} |
844 |
|
|
845 |
|
/** |
846 |
< |
* Insert null into tryTransfer throws NPE |
846 |
> |
* transfer waits until a take occurs. The transfered element |
847 |
> |
* is returned by this associated take. |
848 |
> |
*/ |
849 |
> |
public void testTransfer5() throws InterruptedException { |
850 |
> |
final LinkedTransferQueue<Integer> q |
851 |
> |
= new LinkedTransferQueue<Integer>(); |
852 |
> |
|
853 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
854 |
> |
public void realRun() throws InterruptedException { |
855 |
> |
q.transfer(four); |
856 |
> |
checkEmpty(q); |
857 |
> |
}}); |
858 |
> |
|
859 |
> |
while (q.isEmpty()) |
860 |
> |
Thread.yield(); |
861 |
> |
assertFalse(q.isEmpty()); |
862 |
> |
assertEquals(1, q.size()); |
863 |
> |
assertSame(four, q.take()); |
864 |
> |
checkEmpty(q); |
865 |
> |
awaitTermination(t, MEDIUM_DELAY_MS); |
866 |
> |
} |
867 |
> |
|
868 |
> |
/** |
869 |
> |
* tryTransfer(null) throws NullPointerException |
870 |
|
*/ |
871 |
|
public void testTryTransfer1() { |
872 |
+ |
final LinkedTransferQueue q = new LinkedTransferQueue(); |
873 |
|
try { |
1061 |
– |
final LinkedTransferQueue q = new LinkedTransferQueue(); |
874 |
|
q.tryTransfer(null); |
875 |
< |
this.shouldThrow(); |
876 |
< |
} catch (NullPointerException ex) { |
1065 |
< |
} catch (Exception ex) { |
1066 |
< |
this.unexpectedException(); |
1067 |
< |
} |
875 |
> |
shouldThrow(); |
876 |
> |
} catch (NullPointerException success) {} |
877 |
|
} |
878 |
|
|
879 |
|
/** |
880 |
< |
* tryTransfer returns false and does not enqueue if there are no consumers |
881 |
< |
* waiting to poll or take. |
880 |
> |
* tryTransfer returns false and does not enqueue if there are no |
881 |
> |
* consumers waiting to poll or take. |
882 |
|
*/ |
883 |
< |
public void testTryTransfer2() { |
884 |
< |
try { |
885 |
< |
final LinkedTransferQueue q = new LinkedTransferQueue(); |
886 |
< |
assertFalse(q.tryTransfer(new Object())); |
887 |
< |
assertEquals(0, q.size()); |
1079 |
< |
} catch (Exception ex) { |
1080 |
< |
this.unexpectedException(); |
1081 |
< |
} |
883 |
> |
public void testTryTransfer2() throws InterruptedException { |
884 |
> |
final LinkedTransferQueue q = new LinkedTransferQueue(); |
885 |
> |
assertFalse(q.tryTransfer(new Object())); |
886 |
> |
assertFalse(q.hasWaitingConsumer()); |
887 |
> |
checkEmpty(q); |
888 |
|
} |
889 |
|
|
890 |
|
/** |
891 |
< |
* if there is a consumer waiting poll or take tryTransfer returns |
892 |
< |
* true while enqueueing object |
891 |
> |
* If there is a consumer waiting in timed poll, tryTransfer |
892 |
> |
* returns true while successfully transfering object. |
893 |
|
*/ |
894 |
< |
public void testTryTransfer3() { |
895 |
< |
try { |
896 |
< |
final LinkedTransferQueue q = new LinkedTransferQueue(); |
1091 |
< |
new Thread(new Runnable() { |
894 |
> |
public void testTryTransfer3() throws InterruptedException { |
895 |
> |
final Object hotPotato = new Object(); |
896 |
> |
final LinkedTransferQueue q = new LinkedTransferQueue(); |
897 |
|
|
898 |
< |
public void run() { |
899 |
< |
try { |
900 |
< |
threadAssertTrue(q.hasWaitingConsumer()); |
901 |
< |
threadAssertTrue(q.tryTransfer(new Object())); |
902 |
< |
} catch (Exception ex) { |
903 |
< |
threadUnexpectedException(); |
904 |
< |
} |
898 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
899 |
> |
public void realRun() { |
900 |
> |
while (! q.hasWaitingConsumer()) |
901 |
> |
Thread.yield(); |
902 |
> |
assertTrue(q.hasWaitingConsumer()); |
903 |
> |
checkEmpty(q); |
904 |
> |
assertTrue(q.tryTransfer(hotPotato)); |
905 |
> |
}}); |
906 |
> |
|
907 |
> |
assertSame(hotPotato, q.poll(MEDIUM_DELAY_MS, MILLISECONDS)); |
908 |
> |
checkEmpty(q); |
909 |
> |
awaitTermination(t, MEDIUM_DELAY_MS); |
910 |
> |
} |
911 |
|
|
912 |
< |
} |
913 |
< |
}).start(); |
914 |
< |
assertTrue(q.poll(LONG_DELAY_MS, TimeUnit.MILLISECONDS) != null); |
915 |
< |
assertTrue(q.isEmpty()); |
916 |
< |
} catch (Exception ex) { |
917 |
< |
this.unexpectedException(); |
918 |
< |
} |
912 |
> |
/** |
913 |
> |
* If there is a consumer waiting in take, tryTransfer returns |
914 |
> |
* true while successfully transfering object. |
915 |
> |
*/ |
916 |
> |
public void testTryTransfer4() throws InterruptedException { |
917 |
> |
final Object hotPotato = new Object(); |
918 |
> |
final LinkedTransferQueue q = new LinkedTransferQueue(); |
919 |
> |
|
920 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
921 |
> |
public void realRun() { |
922 |
> |
while (! q.hasWaitingConsumer()) |
923 |
> |
Thread.yield(); |
924 |
> |
assertTrue(q.hasWaitingConsumer()); |
925 |
> |
checkEmpty(q); |
926 |
> |
assertTrue(q.tryTransfer(hotPotato)); |
927 |
> |
}}); |
928 |
> |
|
929 |
> |
assertSame(q.take(), hotPotato); |
930 |
> |
checkEmpty(q); |
931 |
> |
awaitTermination(t, MEDIUM_DELAY_MS); |
932 |
|
} |
933 |
|
|
934 |
|
/** |
935 |
< |
* tryTransfer waits the amount given if interrupted, show an |
1112 |
< |
* interrupted exception |
935 |
> |
* tryTransfer blocks interruptibly if no takers |
936 |
|
*/ |
937 |
< |
public void testTryTransfer4() { |
937 |
> |
public void testTryTransfer5() throws InterruptedException { |
938 |
|
final LinkedTransferQueue q = new LinkedTransferQueue(); |
939 |
< |
Thread toInterrupt = new Thread(new Runnable() { |
939 |
> |
final CountDownLatch pleaseInterrupt = new CountDownLatch(1); |
940 |
> |
assertTrue(q.isEmpty()); |
941 |
|
|
942 |
< |
public void run() { |
942 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
943 |
> |
public void realRun() throws InterruptedException { |
944 |
> |
Thread.currentThread().interrupt(); |
945 |
|
try { |
946 |
< |
q.tryTransfer(new Object(), LONG_DELAY_MS, TimeUnit.MILLISECONDS); |
947 |
< |
threadShouldThrow(); |
948 |
< |
} catch (InterruptedException ex) { |
949 |
< |
} |
950 |
< |
} |
951 |
< |
}); |
952 |
< |
try { |
953 |
< |
toInterrupt.start(); |
954 |
< |
Thread.sleep(SMALL_DELAY_MS); |
955 |
< |
toInterrupt.interrupt(); |
956 |
< |
} catch (Exception ex) { |
957 |
< |
this.unexpectedException(); |
958 |
< |
} |
946 |
> |
q.tryTransfer(new Object(), LONG_DELAY_MS, MILLISECONDS); |
947 |
> |
shouldThrow(); |
948 |
> |
} catch (InterruptedException success) {} |
949 |
> |
assertFalse(Thread.interrupted()); |
950 |
> |
|
951 |
> |
pleaseInterrupt.countDown(); |
952 |
> |
try { |
953 |
> |
q.tryTransfer(new Object(), LONG_DELAY_MS, MILLISECONDS); |
954 |
> |
shouldThrow(); |
955 |
> |
} catch (InterruptedException success) {} |
956 |
> |
assertFalse(Thread.interrupted()); |
957 |
> |
}}); |
958 |
> |
|
959 |
> |
await(pleaseInterrupt); |
960 |
> |
assertThreadStaysAlive(t); |
961 |
> |
t.interrupt(); |
962 |
> |
awaitTermination(t); |
963 |
> |
checkEmpty(q); |
964 |
|
} |
965 |
|
|
966 |
|
/** |
967 |
< |
* tryTransfer gives up after the timeout and return false |
967 |
> |
* tryTransfer gives up after the timeout and returns false |
968 |
|
*/ |
969 |
< |
public void testTryTransfer5() { |
969 |
> |
public void testTryTransfer6() throws InterruptedException { |
970 |
|
final LinkedTransferQueue q = new LinkedTransferQueue(); |
1140 |
– |
try { |
1141 |
– |
new Thread(new Runnable() { |
971 |
|
|
972 |
< |
public void run() { |
973 |
< |
try { |
974 |
< |
threadAssertFalse(q.tryTransfer(new Object(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS)); |
975 |
< |
} catch (InterruptedException ex) { |
976 |
< |
threadUnexpectedException(); |
977 |
< |
} |
978 |
< |
} |
979 |
< |
}).start(); |
980 |
< |
Thread.sleep(LONG_DELAY_MS); |
981 |
< |
assertTrue(q.isEmpty()); |
982 |
< |
} catch (Exception ex) { |
1154 |
< |
this.unexpectedException(); |
1155 |
< |
} |
972 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
973 |
> |
public void realRun() throws InterruptedException { |
974 |
> |
long t0 = System.nanoTime(); |
975 |
> |
assertFalse(q.tryTransfer(new Object(), |
976 |
> |
timeoutMillis(), MILLISECONDS)); |
977 |
> |
assertTrue(millisElapsedSince(t0) >= timeoutMillis()); |
978 |
> |
checkEmpty(q); |
979 |
> |
}}); |
980 |
> |
|
981 |
> |
awaitTermination(t); |
982 |
> |
checkEmpty(q); |
983 |
|
} |
984 |
|
|
985 |
|
/** |
986 |
|
* tryTransfer waits for any elements previously in to be removed |
987 |
|
* before transfering to a poll or take |
988 |
|
*/ |
989 |
< |
public void testTryTransfer6() { |
989 |
> |
public void testTryTransfer7() throws InterruptedException { |
990 |
|
final LinkedTransferQueue q = new LinkedTransferQueue(); |
991 |
< |
q.offer(new Integer(four)); |
1165 |
< |
new Thread(new Runnable() { |
991 |
> |
assertTrue(q.offer(four)); |
992 |
|
|
993 |
< |
public void run() { |
994 |
< |
try { |
995 |
< |
threadAssertTrue(q.tryTransfer(new Integer(five), LONG_DELAY_MS, TimeUnit.MILLISECONDS)); |
996 |
< |
threadAssertTrue(q.isEmpty()); |
997 |
< |
} catch (InterruptedException ex) { |
998 |
< |
threadUnexpectedException(); |
999 |
< |
} |
1000 |
< |
} |
1001 |
< |
}).start(); |
1002 |
< |
try { |
1003 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1004 |
< |
assertEquals(2, q.size()); |
1005 |
< |
assertEquals(new Integer(four), q.poll()); |
1180 |
< |
assertEquals(new Integer(five), q.poll()); |
1181 |
< |
assertTrue(q.isEmpty()); |
1182 |
< |
} catch (Exception ex) { |
1183 |
< |
this.unexpectedException(); |
1184 |
< |
} |
993 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
994 |
> |
public void realRun() throws InterruptedException { |
995 |
> |
assertTrue(q.tryTransfer(five, MEDIUM_DELAY_MS, MILLISECONDS)); |
996 |
> |
checkEmpty(q); |
997 |
> |
}}); |
998 |
> |
|
999 |
> |
while (q.size() != 2) |
1000 |
> |
Thread.yield(); |
1001 |
> |
assertEquals(2, q.size()); |
1002 |
> |
assertSame(four, q.poll()); |
1003 |
> |
assertSame(five, q.poll()); |
1004 |
> |
checkEmpty(q); |
1005 |
> |
awaitTermination(t, MEDIUM_DELAY_MS); |
1006 |
|
} |
1007 |
|
|
1008 |
|
/** |
1009 |
< |
* tryTransfer attempts to enqueue into the q and fails returning false not |
1010 |
< |
* enqueueing and the successive poll is null |
1009 |
> |
* tryTransfer attempts to enqueue into the queue and fails |
1010 |
> |
* returning false not enqueueing and the successive poll is null |
1011 |
|
*/ |
1012 |
< |
public void testTryTransfer7() { |
1012 |
> |
public void testTryTransfer8() throws InterruptedException { |
1013 |
|
final LinkedTransferQueue q = new LinkedTransferQueue(); |
1014 |
< |
q.offer(new Integer(four)); |
1015 |
< |
new Thread(new Runnable() { |
1016 |
< |
|
1017 |
< |
public void run() { |
1018 |
< |
try { |
1019 |
< |
threadAssertFalse(q.tryTransfer(new Integer(five), SHORT_DELAY_MS, TimeUnit.MILLISECONDS)); |
1020 |
< |
threadAssertTrue(q.isEmpty()); |
1021 |
< |
} catch (InterruptedException ex) { |
1022 |
< |
threadUnexpectedException(); |
1202 |
< |
} |
1203 |
< |
} |
1204 |
< |
}).start(); |
1205 |
< |
try { |
1206 |
< |
assertEquals(1, q.size()); |
1207 |
< |
assertEquals(new Integer(four), q.poll()); |
1208 |
< |
Thread.sleep(MEDIUM_DELAY_MS); |
1209 |
< |
assertNull(q.poll()); |
1210 |
< |
} catch (Exception ex) { |
1211 |
< |
this.unexpectedException(); |
1212 |
< |
} |
1014 |
> |
assertTrue(q.offer(four)); |
1015 |
> |
assertEquals(1, q.size()); |
1016 |
> |
long t0 = System.nanoTime(); |
1017 |
> |
assertFalse(q.tryTransfer(five, timeoutMillis(), MILLISECONDS)); |
1018 |
> |
assertTrue(millisElapsedSince(t0) >= timeoutMillis()); |
1019 |
> |
assertEquals(1, q.size()); |
1020 |
> |
assertSame(four, q.poll()); |
1021 |
> |
assertNull(q.poll()); |
1022 |
> |
checkEmpty(q); |
1023 |
|
} |
1024 |
|
|
1025 |
< |
private LinkedTransferQueue populatedQueue( |
1026 |
< |
int n) { |
1027 |
< |
LinkedTransferQueue q = new LinkedTransferQueue(); |
1028 |
< |
assertTrue(q.isEmpty()); |
1029 |
< |
int remainingCapacity = q.remainingCapacity(); |
1220 |
< |
for (int i = 0; i < |
1221 |
< |
n; i++) { |
1025 |
> |
private LinkedTransferQueue<Integer> populatedQueue(int n) { |
1026 |
> |
LinkedTransferQueue<Integer> q = new LinkedTransferQueue<Integer>(); |
1027 |
> |
checkEmpty(q); |
1028 |
> |
for (int i = 0; i < n; i++) { |
1029 |
> |
assertEquals(i, q.size()); |
1030 |
|
assertTrue(q.offer(i)); |
1031 |
+ |
assertEquals(Integer.MAX_VALUE, q.remainingCapacity()); |
1032 |
|
} |
1224 |
– |
|
1033 |
|
assertFalse(q.isEmpty()); |
1226 |
– |
assertEquals(remainingCapacity, q.remainingCapacity()); |
1227 |
– |
assertEquals(n, q.size()); |
1034 |
|
return q; |
1035 |
|
} |
1036 |
|
|
1037 |
< |
private static class ConsumerObserver { |
1038 |
< |
|
1039 |
< |
private int waitingConsumers; |
1040 |
< |
|
1041 |
< |
private ConsumerObserver() { |
1042 |
< |
} |
1043 |
< |
|
1044 |
< |
private void setWaitingConsumer(int i) { |
1045 |
< |
this.waitingConsumers = i; |
1046 |
< |
} |
1047 |
< |
|
1048 |
< |
private int getWaitingConsumers() { |
1243 |
< |
return waitingConsumers; |
1037 |
> |
/** |
1038 |
> |
* remove(null), contains(null) always return false |
1039 |
> |
*/ |
1040 |
> |
public void testNeverContainsNull() { |
1041 |
> |
Collection<?>[] qs = { |
1042 |
> |
new LinkedTransferQueue<Object>(), |
1043 |
> |
populatedQueue(2), |
1044 |
> |
}; |
1045 |
> |
|
1046 |
> |
for (Collection<?> q : qs) { |
1047 |
> |
assertFalse(q.contains(null)); |
1048 |
> |
assertFalse(q.remove(null)); |
1049 |
|
} |
1050 |
|
} |
1051 |
|
} |