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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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*/ |
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|
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import java.io.BufferedInputStream; |
9 |
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import java.io.BufferedOutputStream; |
10 |
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import java.io.ByteArrayInputStream; |
11 |
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import java.io.ByteArrayOutputStream; |
12 |
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import java.io.ObjectInputStream; |
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import java.io.ObjectOutputStream; |
8 |
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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; |
12 |
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import java.util.ConcurrentModificationException; |
12 |
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import java.util.Collection; |
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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; |
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import java.util.concurrent.*; |
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import static java.util.concurrent.TimeUnit.MILLISECONDS; |
16 |
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import java.util.Queue; |
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import java.util.concurrent.BlockingQueue; |
18 |
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import java.util.concurrent.Callable; |
19 |
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import java.util.concurrent.CountDownLatch; |
20 |
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import java.util.concurrent.Executors; |
21 |
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import java.util.concurrent.ExecutorService; |
22 |
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import java.util.concurrent.LinkedTransferQueue; |
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|
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import junit.framework.Test; |
22 |
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import junit.framework.TestSuite; |
25 |
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|
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@SuppressWarnings({"unchecked", "rawtypes"}) |
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public class LinkedTransferQueueTest extends JSR166TestCase { |
28 |
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public static class Generic extends BlockingQueueTest { |
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protected BlockingQueue emptyCollection() { |
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return new LinkedTransferQueue(); |
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} |
32 |
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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); |
39 |
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class Implementation implements CollectionImplementation { |
40 |
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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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} |
46 |
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return newTestSuite(LinkedTransferQueueTest.class, |
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new Generic().testSuite(), |
48 |
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CollectionTest.testSuite(new Implementation())); |
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} |
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|
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/** |
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try { |
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new LinkedTransferQueue(null); |
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shouldThrow(); |
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} catch (NullPointerException success) { |
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} |
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} catch (NullPointerException success) {} |
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} |
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|
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/** |
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* NullPointerException |
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*/ |
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public void testConstructor3() { |
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Collection<Integer> elements = Arrays.asList(new Integer[SIZE]); |
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try { |
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Integer[] ints = new Integer[SIZE]; |
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new LinkedTransferQueue(Arrays.asList(ints)); |
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new LinkedTransferQueue(elements); |
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shouldThrow(); |
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} catch (NullPointerException success) { |
65 |
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} |
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} catch (NullPointerException success) {} |
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} |
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|
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/** |
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* throws NullPointerException |
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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); |
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try { |
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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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} |
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new LinkedTransferQueue(Arrays.asList(ints)); |
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new LinkedTransferQueue(elements); |
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shouldThrow(); |
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} catch (NullPointerException success) { |
81 |
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} |
95 |
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} 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() { |
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try { |
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Integer[] ints = new Integer[SIZE]; |
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for (int i = 0; i < SIZE; ++i) { |
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ints[i] = i; |
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} |
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LinkedTransferQueue q |
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= new LinkedTransferQueue(Arrays.asList(ints)); |
109 |
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for (int i = 0; i < SIZE; ++i) { |
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assertEquals(ints[i], q.poll()); |
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} |
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} finally { |
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Integer[] ints = new Integer[SIZE]; |
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for (int i = 0; i < SIZE; ++i) { |
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ints[i] = i; |
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} |
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List intList = Arrays.asList(ints); |
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LinkedTransferQueue q |
108 |
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= new LinkedTransferQueue(intList); |
109 |
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assertEquals(q.size(), intList.size()); |
110 |
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assertEquals(q.toString(), intList.toString()); |
111 |
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assertTrue(Arrays.equals(q.toArray(), |
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intList.toArray())); |
113 |
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assertTrue(Arrays.equals(q.toArray(new Object[0]), |
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intList.toArray(new Object[0]))); |
115 |
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assertTrue(Arrays.equals(q.toArray(new Object[SIZE]), |
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intList.toArray(new Object[SIZE]))); |
117 |
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for (int i = 0; i < SIZE; ++i) { |
118 |
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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 |
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* remainingCapacity() always returns Integer.MAX_VALUE |
124 |
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*/ |
125 |
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public void testRemainingCapacity() { |
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LinkedTransferQueue<Integer> q = populatedQueue(SIZE); |
126 |
> |
BlockingQueue q = populatedQueue(SIZE); |
127 |
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for (int i = 0; i < SIZE; ++i) { |
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assertEquals(Integer.MAX_VALUE, q.remainingCapacity()); |
129 |
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assertEquals(SIZE - i, q.size()); |
130 |
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q.remove(); |
130 |
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assertEquals(i, q.remove()); |
131 |
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} |
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for (int i = 0; i < SIZE; ++i) { |
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assertEquals(Integer.MAX_VALUE, q.remainingCapacity()); |
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assertEquals(i, q.size()); |
135 |
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q.add(i); |
116 |
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} |
117 |
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} |
118 |
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|
119 |
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/** |
120 |
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* offer(null) throws NullPointerException |
121 |
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*/ |
122 |
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public void testOfferNull() { |
123 |
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try { |
124 |
< |
LinkedTransferQueue q = new LinkedTransferQueue(); |
125 |
< |
q.offer(null); |
126 |
< |
shouldThrow(); |
127 |
< |
} catch (NullPointerException success) { |
128 |
< |
} |
129 |
< |
} |
130 |
< |
|
131 |
< |
/** |
132 |
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* add(null) throws NullPointerException |
133 |
< |
*/ |
134 |
< |
public void testAddNull() { |
135 |
< |
try { |
136 |
< |
LinkedTransferQueue q = new LinkedTransferQueue(); |
137 |
< |
q.add(null); |
138 |
< |
shouldThrow(); |
139 |
< |
} catch (NullPointerException success) { |
140 |
< |
} |
141 |
< |
} |
142 |
< |
|
143 |
< |
/** |
144 |
< |
* addAll(null) throws NullPointerException |
145 |
< |
*/ |
146 |
< |
public void testAddAll1() { |
147 |
< |
try { |
148 |
< |
LinkedTransferQueue q = new LinkedTransferQueue(); |
149 |
< |
q.addAll(null); |
150 |
< |
shouldThrow(); |
151 |
< |
} catch (NullPointerException success) { |
135 |
> |
assertTrue(q.add(i)); |
136 |
|
} |
137 |
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} |
138 |
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|
140 |
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* addAll(this) throws IllegalArgumentException |
141 |
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*/ |
142 |
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public void testAddAllSelf() { |
143 |
+ |
LinkedTransferQueue q = populatedQueue(SIZE); |
144 |
|
try { |
160 |
– |
LinkedTransferQueue q = populatedQueue(SIZE); |
145 |
|
q.addAll(q); |
146 |
|
shouldThrow(); |
147 |
< |
} catch (IllegalArgumentException success) { |
164 |
< |
} |
165 |
< |
} |
166 |
< |
|
167 |
< |
/** |
168 |
< |
* addAll of a collection with null elements throws NullPointerException |
169 |
< |
*/ |
170 |
< |
public void testAddAll2() { |
171 |
< |
try { |
172 |
< |
LinkedTransferQueue q = new LinkedTransferQueue(); |
173 |
< |
Integer[] ints = new Integer[SIZE]; |
174 |
< |
q.addAll(Arrays.asList(ints)); |
175 |
< |
shouldThrow(); |
176 |
< |
} catch (NullPointerException success) { |
177 |
< |
} |
147 |
> |
} catch (IllegalArgumentException success) {} |
148 |
|
} |
149 |
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|
150 |
|
/** |
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 { |
186 |
– |
LinkedTransferQueue q = new LinkedTransferQueue(); |
187 |
– |
Integer[] ints = new Integer[SIZE]; |
188 |
– |
for (int i = 0; i < SIZE - 1; ++i) { |
189 |
– |
ints[i] = i; |
190 |
– |
} |
160 |
|
q.addAll(Arrays.asList(ints)); |
161 |
|
shouldThrow(); |
162 |
< |
} catch (NullPointerException success) { |
194 |
< |
} |
162 |
> |
} catch (NullPointerException success) {} |
163 |
|
} |
164 |
|
|
165 |
|
/** |
180 |
|
} |
181 |
|
|
182 |
|
/** |
215 |
– |
* put(null) throws NullPointerException |
216 |
– |
*/ |
217 |
– |
public void testPutNull() throws InterruptedException { |
218 |
– |
try { |
219 |
– |
LinkedTransferQueue q = new LinkedTransferQueue(); |
220 |
– |
q.put(null); |
221 |
– |
shouldThrow(); |
222 |
– |
} catch (NullPointerException success) {} |
223 |
– |
} |
224 |
– |
|
225 |
– |
/** |
183 |
|
* all elements successfully put are contained |
184 |
|
*/ |
185 |
|
public void testPut() { |
186 |
< |
LinkedTransferQueue<Integer> q = new LinkedTransferQueue<Integer>(); |
186 |
> |
LinkedTransferQueue<Integer> q = new LinkedTransferQueue<>(); |
187 |
|
for (int i = 0; i < SIZE; ++i) { |
188 |
+ |
assertEquals(i, q.size()); |
189 |
|
q.put(i); |
190 |
|
assertTrue(q.contains(i)); |
191 |
|
} |
234 |
– |
assertEquals(q.size(), SIZE); |
192 |
|
} |
193 |
|
|
194 |
|
/** |
202 |
|
} |
203 |
|
|
204 |
|
/** |
205 |
< |
* take blocks interruptibly when empty |
249 |
< |
*/ |
250 |
< |
public void testTakeFromEmpty() throws InterruptedException { |
251 |
< |
final LinkedTransferQueue q = new LinkedTransferQueue(); |
252 |
< |
Thread t = new Thread(new CheckedInterruptedRunnable() { |
253 |
< |
void realRun() throws InterruptedException { |
254 |
< |
q.take(); |
255 |
< |
}}); |
256 |
< |
t.start(); |
257 |
< |
Thread.sleep(SHORT_DELAY_MS); |
258 |
< |
t.interrupt(); |
259 |
< |
t.join(); |
260 |
< |
} |
261 |
< |
|
262 |
< |
/** |
263 |
< |
* Take removes existing elements until empty, then blocks interruptibly |
205 |
> |
* take removes existing elements until empty, then blocks interruptibly |
206 |
|
*/ |
207 |
|
public void testBlockingTake() throws InterruptedException { |
208 |
< |
Thread t = new Thread(new CheckedInterruptedRunnable() { |
209 |
< |
void realRun() throws InterruptedException { |
210 |
< |
LinkedTransferQueue<Integer> q = populatedQueue(SIZE); |
211 |
< |
for (int i = 0; i < SIZE; ++i) { |
212 |
< |
threadAssertEquals(i, (int) q.take()); |
213 |
< |
} |
214 |
< |
q.take(); |
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++) assertEquals(i, q.take()); |
213 |
> |
|
214 |
> |
Thread.currentThread().interrupt(); |
215 |
> |
try { |
216 |
> |
q.take(); |
217 |
> |
shouldThrow(); |
218 |
> |
} catch (InterruptedException success) {} |
219 |
> |
assertFalse(Thread.interrupted()); |
220 |
> |
|
221 |
> |
pleaseInterrupt.countDown(); |
222 |
> |
try { |
223 |
> |
q.take(); |
224 |
> |
shouldThrow(); |
225 |
> |
} catch (InterruptedException success) {} |
226 |
> |
assertFalse(Thread.interrupted()); |
227 |
|
}}); |
228 |
< |
t.start(); |
229 |
< |
Thread.sleep(SHORT_DELAY_MS); |
228 |
> |
|
229 |
> |
await(pleaseInterrupt); |
230 |
> |
if (randomBoolean()) assertThreadBlocks(t, Thread.State.WAITING); |
231 |
|
t.interrupt(); |
232 |
< |
t.join(); |
232 |
> |
awaitTermination(t); |
233 |
|
} |
234 |
|
|
235 |
|
/** |
236 |
|
* poll succeeds unless empty |
237 |
|
*/ |
238 |
< |
public void testPoll() { |
238 |
> |
public void testPoll() throws InterruptedException { |
239 |
|
LinkedTransferQueue<Integer> q = populatedQueue(SIZE); |
240 |
|
for (int i = 0; i < SIZE; ++i) { |
241 |
|
assertEquals(i, (int) q.poll()); |
242 |
|
} |
243 |
|
assertNull(q.poll()); |
244 |
+ |
checkEmpty(q); |
245 |
|
} |
246 |
|
|
247 |
|
/** |
248 |
< |
* timed pool with zero timeout succeeds when non-empty, else times out |
248 |
> |
* timed poll with zero timeout succeeds when non-empty, else times out |
249 |
|
*/ |
250 |
|
public void testTimedPoll0() throws InterruptedException { |
251 |
|
LinkedTransferQueue<Integer> q = populatedQueue(SIZE); |
253 |
|
assertEquals(i, (int) q.poll(0, MILLISECONDS)); |
254 |
|
} |
255 |
|
assertNull(q.poll(0, MILLISECONDS)); |
256 |
+ |
checkEmpty(q); |
257 |
|
} |
258 |
|
|
259 |
|
/** |
260 |
< |
* timed pool with nonzero timeout succeeds when non-empty, else times out |
260 |
> |
* timed poll with nonzero timeout succeeds when non-empty, else times out |
261 |
|
*/ |
262 |
|
public void testTimedPoll() throws InterruptedException { |
263 |
|
LinkedTransferQueue<Integer> q = populatedQueue(SIZE); |
264 |
< |
for (int i = 0; i < SIZE; ++i) { |
265 |
< |
assertEquals(i, (int) q.poll(SHORT_DELAY_MS, MILLISECONDS)); |
266 |
< |
} |
267 |
< |
assertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS)); |
264 |
> |
long startTime = System.nanoTime(); |
265 |
> |
for (int i = 0; i < SIZE; ++i) |
266 |
> |
assertEquals(i, (int) q.poll(LONG_DELAY_MS, MILLISECONDS)); |
267 |
> |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
268 |
> |
|
269 |
> |
startTime = System.nanoTime(); |
270 |
> |
assertNull(q.poll(timeoutMillis(), MILLISECONDS)); |
271 |
> |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
272 |
> |
checkEmpty(q); |
273 |
|
} |
274 |
|
|
275 |
|
/** |
277 |
|
* returning timeout status |
278 |
|
*/ |
279 |
|
public void testInterruptedTimedPoll() throws InterruptedException { |
280 |
< |
Thread t = new Thread(new CheckedInterruptedRunnable() { |
281 |
< |
void realRun() throws InterruptedException { |
282 |
< |
LinkedTransferQueue<Integer> q = populatedQueue(SIZE); |
283 |
< |
for (int i = 0; i < SIZE; ++i) { |
284 |
< |
threadAssertEquals(i, (int) q.poll(SHORT_DELAY_MS, |
285 |
< |
MILLISECONDS)); |
286 |
< |
} |
287 |
< |
q.poll(SHORT_DELAY_MS, MILLISECONDS); |
280 |
> |
final BlockingQueue<Integer> q = populatedQueue(SIZE); |
281 |
> |
final CountDownLatch pleaseInterrupt = new CountDownLatch(1); |
282 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
283 |
> |
public void realRun() throws InterruptedException { |
284 |
> |
long startTime = System.nanoTime(); |
285 |
> |
for (int i = 0; i < SIZE; i++) |
286 |
> |
assertEquals(i, (int) q.poll(LONG_DELAY_MS, MILLISECONDS)); |
287 |
> |
|
288 |
> |
Thread.currentThread().interrupt(); |
289 |
> |
try { |
290 |
> |
q.poll(randomTimeout(), randomTimeUnit()); |
291 |
> |
shouldThrow(); |
292 |
> |
} catch (InterruptedException success) {} |
293 |
> |
assertFalse(Thread.interrupted()); |
294 |
> |
|
295 |
> |
pleaseInterrupt.countDown(); |
296 |
> |
try { |
297 |
> |
q.poll(LONG_DELAY_MS, MILLISECONDS); |
298 |
> |
shouldThrow(); |
299 |
> |
} catch (InterruptedException success) {} |
300 |
> |
assertFalse(Thread.interrupted()); |
301 |
> |
|
302 |
> |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
303 |
|
}}); |
304 |
< |
t.start(); |
305 |
< |
Thread.sleep(SHORT_DELAY_MS); |
304 |
> |
|
305 |
> |
await(pleaseInterrupt); |
306 |
> |
if (randomBoolean()) assertThreadBlocks(t, Thread.State.TIMED_WAITING); |
307 |
|
t.interrupt(); |
308 |
< |
t.join(); |
308 |
> |
awaitTermination(t); |
309 |
> |
checkEmpty(q); |
310 |
|
} |
311 |
|
|
312 |
|
/** |
313 |
< |
* timed poll before a delayed offer fails; after offer succeeds; |
314 |
< |
* on interruption throws |
313 |
> |
* timed poll after thread interrupted throws InterruptedException |
314 |
> |
* instead of returning timeout status |
315 |
|
*/ |
316 |
< |
public void testTimedPollWithOffer() throws InterruptedException { |
317 |
< |
final LinkedTransferQueue q = new LinkedTransferQueue(); |
318 |
< |
Thread t = new Thread(new CheckedInterruptedRunnable() { |
319 |
< |
void realRun() throws InterruptedException { |
320 |
< |
threadAssertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS)); |
321 |
< |
q.poll(LONG_DELAY_MS, MILLISECONDS); |
322 |
< |
q.poll(LONG_DELAY_MS, MILLISECONDS); |
316 |
> |
public void testTimedPollAfterInterrupt() throws InterruptedException { |
317 |
> |
final BlockingQueue<Integer> q = populatedQueue(SIZE); |
318 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
319 |
> |
public void realRun() throws InterruptedException { |
320 |
> |
long startTime = System.nanoTime(); |
321 |
> |
Thread.currentThread().interrupt(); |
322 |
> |
for (int i = 0; i < SIZE; ++i) |
323 |
> |
assertEquals(i, (int) q.poll(randomTimeout(), randomTimeUnit())); |
324 |
> |
try { |
325 |
> |
q.poll(randomTimeout(), randomTimeUnit()); |
326 |
> |
shouldThrow(); |
327 |
> |
} catch (InterruptedException success) {} |
328 |
> |
assertFalse(Thread.interrupted()); |
329 |
> |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
330 |
|
}}); |
331 |
< |
t.start(); |
332 |
< |
Thread.sleep(SMALL_DELAY_MS); |
333 |
< |
assertTrue(q.offer(zero, SHORT_DELAY_MS, MILLISECONDS)); |
348 |
< |
t.interrupt(); |
349 |
< |
t.join(); |
331 |
> |
|
332 |
> |
awaitTermination(t); |
333 |
> |
checkEmpty(q); |
334 |
|
} |
335 |
|
|
336 |
|
/** |
337 |
|
* peek returns next element, or null if empty |
338 |
|
*/ |
339 |
< |
public void testPeek() { |
339 |
> |
public void testPeek() throws InterruptedException { |
340 |
|
LinkedTransferQueue<Integer> q = populatedQueue(SIZE); |
341 |
|
for (int i = 0; i < SIZE; ++i) { |
342 |
|
assertEquals(i, (int) q.peek()); |
345 |
|
i != (int) q.peek()); |
346 |
|
} |
347 |
|
assertNull(q.peek()); |
348 |
+ |
checkEmpty(q); |
349 |
|
} |
350 |
|
|
351 |
|
/** |
352 |
|
* element returns next element, or throws NoSuchElementException if empty |
353 |
|
*/ |
354 |
< |
public void testElement() { |
354 |
> |
public void testElement() throws InterruptedException { |
355 |
|
LinkedTransferQueue<Integer> q = populatedQueue(SIZE); |
356 |
|
for (int i = 0; i < SIZE; ++i) { |
357 |
|
assertEquals(i, (int) q.element()); |
360 |
|
try { |
361 |
|
q.element(); |
362 |
|
shouldThrow(); |
363 |
< |
} catch (NoSuchElementException success) { |
364 |
< |
} |
363 |
> |
} catch (NoSuchElementException success) {} |
364 |
> |
checkEmpty(q); |
365 |
|
} |
366 |
|
|
367 |
|
/** |
368 |
|
* remove removes next element, or throws NoSuchElementException if empty |
369 |
|
*/ |
370 |
< |
public void testRemove() { |
370 |
> |
public void testRemove() throws InterruptedException { |
371 |
|
LinkedTransferQueue<Integer> q = populatedQueue(SIZE); |
372 |
|
for (int i = 0; i < SIZE; ++i) { |
373 |
|
assertEquals(i, (int) q.remove()); |
375 |
|
try { |
376 |
|
q.remove(); |
377 |
|
shouldThrow(); |
378 |
< |
} catch (NoSuchElementException success) { |
379 |
< |
} |
395 |
< |
} |
396 |
< |
|
397 |
< |
/** |
398 |
< |
* remove(x) removes x and returns true if present |
399 |
< |
*/ |
400 |
< |
public void testRemoveElement() { |
401 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
402 |
< |
for (int i = 1; i < SIZE; i += 2) { |
403 |
< |
assertTrue(q.remove(i)); |
404 |
< |
} |
405 |
< |
for (int i = 0; i < SIZE; i += 2) { |
406 |
< |
assertTrue(q.remove(i)); |
407 |
< |
assertFalse(q.remove(i + 1)); |
408 |
< |
} |
409 |
< |
assertTrue(q.isEmpty()); |
378 |
> |
} catch (NoSuchElementException success) {} |
379 |
> |
checkEmpty(q); |
380 |
|
} |
381 |
|
|
382 |
|
/** |
389 |
|
assertTrue(q.remove(one)); |
390 |
|
assertTrue(q.remove(two)); |
391 |
|
assertTrue(q.add(three)); |
392 |
< |
assertTrue(q.take() != null); |
392 |
> |
assertSame(q.take(), three); |
393 |
|
} |
394 |
|
|
395 |
|
/** |
407 |
|
/** |
408 |
|
* clear removes all elements |
409 |
|
*/ |
410 |
< |
public void testClear() { |
410 |
> |
public void testClear() throws InterruptedException { |
411 |
|
LinkedTransferQueue q = populatedQueue(SIZE); |
412 |
|
q.clear(); |
413 |
< |
assertTrue(q.isEmpty()); |
444 |
< |
assertEquals(0, q.size()); |
413 |
> |
checkEmpty(q); |
414 |
|
assertEquals(Integer.MAX_VALUE, q.remainingCapacity()); |
415 |
|
q.add(one); |
416 |
|
assertFalse(q.isEmpty()); |
417 |
+ |
assertEquals(1, q.size()); |
418 |
|
assertTrue(q.contains(one)); |
419 |
|
q.clear(); |
420 |
< |
assertTrue(q.isEmpty()); |
420 |
> |
checkEmpty(q); |
421 |
|
} |
422 |
|
|
423 |
|
/** |
425 |
|
*/ |
426 |
|
public void testContainsAll() { |
427 |
|
LinkedTransferQueue<Integer> q = populatedQueue(SIZE); |
428 |
< |
LinkedTransferQueue<Integer> p = new LinkedTransferQueue<Integer>(); |
428 |
> |
LinkedTransferQueue<Integer> p = new LinkedTransferQueue<>(); |
429 |
|
for (int i = 0; i < SIZE; ++i) { |
430 |
|
assertTrue(q.containsAll(p)); |
431 |
|
assertFalse(p.containsAll(q)); |
471 |
|
} |
472 |
|
|
473 |
|
/** |
474 |
< |
* toArray contains all elements |
474 |
> |
* toArray() contains all elements in FIFO order |
475 |
|
*/ |
476 |
< |
public void testToArray() throws InterruptedException { |
476 |
> |
public void testToArray() { |
477 |
|
LinkedTransferQueue q = populatedQueue(SIZE); |
478 |
< |
Object[] o = q.toArray(); |
479 |
< |
for (int i = 0; i < o.length; i++) { |
480 |
< |
assertEquals(o[i], q.take()); |
481 |
< |
} |
478 |
> |
Object[] a = q.toArray(); |
479 |
> |
assertSame(Object[].class, a.getClass()); |
480 |
> |
for (Object o : a) |
481 |
> |
assertSame(o, q.poll()); |
482 |
> |
assertTrue(q.isEmpty()); |
483 |
|
} |
484 |
|
|
485 |
|
/** |
486 |
< |
* toArray(a) contains all elements |
486 |
> |
* toArray(a) contains all elements in FIFO order |
487 |
|
*/ |
488 |
< |
public void testToArray2() throws InterruptedException { |
488 |
> |
public void testToArray2() { |
489 |
|
LinkedTransferQueue<Integer> q = populatedQueue(SIZE); |
490 |
|
Integer[] ints = new Integer[SIZE]; |
491 |
< |
ints = q.toArray(ints); |
492 |
< |
for (int i = 0; i < ints.length; i++) { |
493 |
< |
assertEquals(ints[i], q.take()); |
494 |
< |
} |
495 |
< |
} |
525 |
< |
|
526 |
< |
/** |
527 |
< |
* toArray(null) throws NullPointerException |
528 |
< |
*/ |
529 |
< |
public void testToArray_BadArg() { |
530 |
< |
try { |
531 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
532 |
< |
Object o[] = q.toArray(null); |
533 |
< |
shouldThrow(); |
534 |
< |
} catch (NullPointerException success) { |
535 |
< |
} |
491 |
> |
Integer[] array = q.toArray(ints); |
492 |
> |
assertSame(ints, array); |
493 |
> |
for (Integer o : ints) |
494 |
> |
assertSame(o, q.poll()); |
495 |
> |
assertTrue(q.isEmpty()); |
496 |
|
} |
497 |
|
|
498 |
|
/** |
499 |
< |
* toArray with incompatible array type throws CCE |
499 |
> |
* toArray(incompatible array type) throws ArrayStoreException |
500 |
|
*/ |
501 |
|
public void testToArray1_BadArg() { |
502 |
+ |
LinkedTransferQueue q = populatedQueue(SIZE); |
503 |
|
try { |
504 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
544 |
< |
Object o[] = q.toArray(new String[10]); |
504 |
> |
q.toArray(new String[10]); |
505 |
|
shouldThrow(); |
506 |
< |
} catch (ArrayStoreException success) { |
547 |
< |
} |
506 |
> |
} catch (ArrayStoreException success) {} |
507 |
|
} |
508 |
|
|
509 |
|
/** |
512 |
|
public void testIterator() throws InterruptedException { |
513 |
|
LinkedTransferQueue q = populatedQueue(SIZE); |
514 |
|
Iterator it = q.iterator(); |
515 |
< |
while (it.hasNext()) { |
515 |
> |
int i; |
516 |
> |
for (i = 0; it.hasNext(); i++) |
517 |
> |
assertTrue(q.contains(it.next())); |
518 |
> |
assertEquals(i, SIZE); |
519 |
> |
assertIteratorExhausted(it); |
520 |
> |
|
521 |
> |
it = q.iterator(); |
522 |
> |
for (i = 0; it.hasNext(); i++) |
523 |
|
assertEquals(it.next(), q.take()); |
524 |
< |
} |
524 |
> |
assertEquals(i, SIZE); |
525 |
> |
assertIteratorExhausted(it); |
526 |
> |
} |
527 |
> |
|
528 |
> |
/** |
529 |
> |
* iterator of empty collection has no elements |
530 |
> |
*/ |
531 |
> |
public void testEmptyIterator() { |
532 |
> |
assertIteratorExhausted(new LinkedTransferQueue().iterator()); |
533 |
|
} |
534 |
|
|
535 |
|
/** |
536 |
< |
* iterator.remove removes current element |
536 |
> |
* iterator.remove() removes current element |
537 |
|
*/ |
538 |
|
public void testIteratorRemove() { |
539 |
|
final LinkedTransferQueue q = new LinkedTransferQueue(); |
546 |
|
it.remove(); |
547 |
|
|
548 |
|
it = q.iterator(); |
549 |
< |
assertEquals(it.next(), one); |
550 |
< |
assertEquals(it.next(), three); |
549 |
> |
assertSame(it.next(), one); |
550 |
> |
assertSame(it.next(), three); |
551 |
|
assertFalse(it.hasNext()); |
552 |
|
} |
553 |
|
|
555 |
|
* iterator ordering is FIFO |
556 |
|
*/ |
557 |
|
public void testIteratorOrdering() { |
558 |
< |
final LinkedTransferQueue<Integer> q |
585 |
< |
= new LinkedTransferQueue<Integer>(); |
558 |
> |
final LinkedTransferQueue<Integer> q = new LinkedTransferQueue<>(); |
559 |
|
assertEquals(Integer.MAX_VALUE, q.remainingCapacity()); |
560 |
|
q.add(one); |
561 |
|
q.add(two); |
590 |
|
LinkedTransferQueue q = populatedQueue(SIZE); |
591 |
|
String s = q.toString(); |
592 |
|
for (int i = 0; i < SIZE; ++i) { |
593 |
< |
assertTrue(s.indexOf(String.valueOf(i)) >= 0); |
593 |
> |
assertTrue(s.contains(String.valueOf(i))); |
594 |
|
} |
595 |
|
} |
596 |
|
|
599 |
|
*/ |
600 |
|
public void testOfferInExecutor() { |
601 |
|
final LinkedTransferQueue q = new LinkedTransferQueue(); |
602 |
< |
q.add(one); |
603 |
< |
q.add(two); |
604 |
< |
ExecutorService executor = Executors.newFixedThreadPool(2); |
602 |
> |
final CheckedBarrier threadsStarted = new CheckedBarrier(2); |
603 |
> |
final ExecutorService executor = Executors.newFixedThreadPool(2); |
604 |
> |
try (PoolCleaner cleaner = cleaner(executor)) { |
605 |
|
|
606 |
< |
executor.execute(new CheckedRunnable() { |
607 |
< |
void realRun() { |
608 |
< |
threadAssertTrue(q.offer(three, MEDIUM_DELAY_MS, |
609 |
< |
MILLISECONDS)); |
610 |
< |
}}); |
611 |
< |
|
612 |
< |
executor.execute(new CheckedRunnable() { |
640 |
< |
void realRun() throws InterruptedException { |
641 |
< |
Thread.sleep(SMALL_DELAY_MS); |
642 |
< |
threadAssertEquals(one, q.take()); |
643 |
< |
}}); |
606 |
> |
executor.execute(new CheckedRunnable() { |
607 |
> |
public void realRun() throws InterruptedException { |
608 |
> |
threadsStarted.await(); |
609 |
> |
long startTime = System.nanoTime(); |
610 |
> |
assertTrue(q.offer(one, LONG_DELAY_MS, MILLISECONDS)); |
611 |
> |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
612 |
> |
}}); |
613 |
|
|
614 |
< |
joinPool(executor); |
614 |
> |
executor.execute(new CheckedRunnable() { |
615 |
> |
public void realRun() throws InterruptedException { |
616 |
> |
threadsStarted.await(); |
617 |
> |
assertSame(one, q.take()); |
618 |
> |
checkEmpty(q); |
619 |
> |
}}); |
620 |
> |
} |
621 |
|
} |
622 |
|
|
623 |
|
/** |
624 |
< |
* poll retrieves elements across Executor threads |
624 |
> |
* timed poll retrieves elements across Executor threads |
625 |
|
*/ |
626 |
|
public void testPollInExecutor() { |
627 |
|
final LinkedTransferQueue q = new LinkedTransferQueue(); |
628 |
< |
ExecutorService executor = Executors.newFixedThreadPool(2); |
629 |
< |
|
630 |
< |
executor.execute(new CheckedRunnable() { |
631 |
< |
void realRun() throws InterruptedException { |
632 |
< |
threadAssertNull(q.poll()); |
633 |
< |
threadAssertTrue(null != q.poll(MEDIUM_DELAY_MS, |
634 |
< |
MILLISECONDS)); |
635 |
< |
threadAssertTrue(q.isEmpty()); |
636 |
< |
}}); |
637 |
< |
|
638 |
< |
executor.execute(new CheckedRunnable() { |
639 |
< |
void realRun() throws InterruptedException { |
640 |
< |
Thread.sleep(SMALL_DELAY_MS); |
641 |
< |
q.put(one); |
642 |
< |
}}); |
643 |
< |
|
644 |
< |
joinPool(executor); |
645 |
< |
} |
646 |
< |
|
672 |
< |
/** |
673 |
< |
* A deserialized serialized queue has same elements in same order |
674 |
< |
*/ |
675 |
< |
public void testSerialization() throws Exception { |
676 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
677 |
< |
|
678 |
< |
ByteArrayOutputStream bout = new ByteArrayOutputStream(10000); |
679 |
< |
ObjectOutputStream out |
680 |
< |
= new ObjectOutputStream(new BufferedOutputStream(bout)); |
681 |
< |
out.writeObject(q); |
682 |
< |
out.close(); |
683 |
< |
|
684 |
< |
ByteArrayInputStream bin |
685 |
< |
= new ByteArrayInputStream(bout.toByteArray()); |
686 |
< |
ObjectInputStream in |
687 |
< |
= new ObjectInputStream(new BufferedInputStream(bin)); |
688 |
< |
LinkedTransferQueue r = (LinkedTransferQueue) in.readObject(); |
689 |
< |
|
690 |
< |
assertEquals(q.size(), r.size()); |
691 |
< |
while (!q.isEmpty()) { |
692 |
< |
assertEquals(q.remove(), r.remove()); |
628 |
> |
final CheckedBarrier threadsStarted = new CheckedBarrier(2); |
629 |
> |
final ExecutorService executor = Executors.newFixedThreadPool(2); |
630 |
> |
try (PoolCleaner cleaner = cleaner(executor)) { |
631 |
> |
|
632 |
> |
executor.execute(new CheckedRunnable() { |
633 |
> |
public void realRun() throws InterruptedException { |
634 |
> |
assertNull(q.poll()); |
635 |
> |
threadsStarted.await(); |
636 |
> |
long startTime = System.nanoTime(); |
637 |
> |
assertSame(one, q.poll(LONG_DELAY_MS, MILLISECONDS)); |
638 |
> |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
639 |
> |
checkEmpty(q); |
640 |
> |
}}); |
641 |
> |
|
642 |
> |
executor.execute(new CheckedRunnable() { |
643 |
> |
public void realRun() throws InterruptedException { |
644 |
> |
threadsStarted.await(); |
645 |
> |
q.put(one); |
646 |
> |
}}); |
647 |
|
} |
648 |
|
} |
649 |
|
|
650 |
|
/** |
651 |
< |
* drainTo(null) throws NullPointerException |
651 |
> |
* A deserialized/reserialized queue has same elements in same order |
652 |
|
*/ |
653 |
< |
public void testDrainToNull() { |
654 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
655 |
< |
try { |
702 |
< |
q.drainTo(null); |
703 |
< |
shouldThrow(); |
704 |
< |
} catch (NullPointerException success) { |
705 |
< |
} |
706 |
< |
} |
653 |
> |
public void testSerialization() throws Exception { |
654 |
> |
Queue x = populatedQueue(SIZE); |
655 |
> |
Queue y = serialClone(x); |
656 |
|
|
657 |
< |
/** |
658 |
< |
* drainTo(this) throws IllegalArgumentException |
659 |
< |
*/ |
660 |
< |
public void testDrainToSelf() { |
661 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
662 |
< |
try { |
663 |
< |
q.drainTo(q); |
715 |
< |
shouldThrow(); |
716 |
< |
} catch (IllegalArgumentException success) { |
657 |
> |
assertNotSame(y, x); |
658 |
> |
assertEquals(x.size(), y.size()); |
659 |
> |
assertEquals(x.toString(), y.toString()); |
660 |
> |
assertTrue(Arrays.equals(x.toArray(), y.toArray())); |
661 |
> |
while (!x.isEmpty()) { |
662 |
> |
assertFalse(y.isEmpty()); |
663 |
> |
assertEquals(x.remove(), y.remove()); |
664 |
|
} |
665 |
+ |
assertTrue(y.isEmpty()); |
666 |
|
} |
667 |
|
|
668 |
|
/** |
672 |
|
LinkedTransferQueue q = populatedQueue(SIZE); |
673 |
|
ArrayList l = new ArrayList(); |
674 |
|
q.drainTo(l); |
675 |
< |
assertEquals(q.size(), 0); |
676 |
< |
assertEquals(l.size(), SIZE); |
675 |
> |
assertEquals(0, q.size()); |
676 |
> |
assertEquals(SIZE, l.size()); |
677 |
|
for (int i = 0; i < SIZE; ++i) { |
678 |
< |
assertEquals(l.get(i), i); |
678 |
> |
assertEquals(i, l.get(i)); |
679 |
|
} |
680 |
|
q.add(zero); |
681 |
|
q.add(one); |
684 |
|
assertTrue(q.contains(one)); |
685 |
|
l.clear(); |
686 |
|
q.drainTo(l); |
687 |
< |
assertEquals(q.size(), 0); |
688 |
< |
assertEquals(l.size(), 2); |
687 |
> |
assertEquals(0, q.size()); |
688 |
> |
assertEquals(2, l.size()); |
689 |
|
for (int i = 0; i < 2; ++i) { |
690 |
< |
assertEquals(l.get(i), i); |
690 |
> |
assertEquals(i, l.get(i)); |
691 |
|
} |
692 |
|
} |
693 |
|
|
694 |
|
/** |
695 |
< |
* drainTo empties full queue, unblocking a waiting put. |
695 |
> |
* drainTo(c) empties full queue, unblocking a waiting put. |
696 |
|
*/ |
697 |
|
public void testDrainToWithActivePut() throws InterruptedException { |
698 |
|
final LinkedTransferQueue q = populatedQueue(SIZE); |
699 |
< |
Thread t = new Thread(new CheckedRunnable() { |
700 |
< |
void realRun() { |
699 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
700 |
> |
public void realRun() { |
701 |
|
q.put(SIZE + 1); |
702 |
|
}}); |
755 |
– |
t.start(); |
703 |
|
ArrayList l = new ArrayList(); |
704 |
|
q.drainTo(l); |
705 |
|
assertTrue(l.size() >= SIZE); |
706 |
< |
for (int i = 0; i < SIZE; ++i) { |
707 |
< |
assertEquals(l.get(i), i); |
708 |
< |
} |
762 |
< |
t.join(); |
706 |
> |
for (int i = 0; i < SIZE; ++i) |
707 |
> |
assertEquals(i, l.get(i)); |
708 |
> |
awaitTermination(t); |
709 |
|
assertTrue(q.size() + l.size() >= SIZE); |
710 |
|
} |
711 |
|
|
712 |
|
/** |
713 |
< |
* drainTo(null, n) throws NullPointerException |
768 |
< |
*/ |
769 |
< |
public void testDrainToNullN() { |
770 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
771 |
< |
try { |
772 |
< |
q.drainTo(null, 0); |
773 |
< |
shouldThrow(); |
774 |
< |
} catch (NullPointerException success) { |
775 |
< |
} |
776 |
< |
} |
777 |
< |
|
778 |
< |
/** |
779 |
< |
* drainTo(this, n) throws IllegalArgumentException |
780 |
< |
*/ |
781 |
< |
public void testDrainToSelfN() { |
782 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
783 |
< |
try { |
784 |
< |
q.drainTo(q, 0); |
785 |
< |
shouldThrow(); |
786 |
< |
} catch (IllegalArgumentException success) { |
787 |
< |
} |
788 |
< |
} |
789 |
< |
|
790 |
< |
/** |
791 |
< |
* drainTo(c, n) empties first max {n, size} elements of queue into c |
713 |
> |
* drainTo(c, n) empties first min(n, size) elements of queue into c |
714 |
|
*/ |
715 |
|
public void testDrainToN() { |
716 |
|
LinkedTransferQueue q = new LinkedTransferQueue(); |
721 |
|
ArrayList l = new ArrayList(); |
722 |
|
q.drainTo(l, i); |
723 |
|
int k = (i < SIZE) ? i : SIZE; |
724 |
< |
assertEquals(l.size(), k); |
725 |
< |
assertEquals(q.size(), SIZE - k); |
726 |
< |
for (int j = 0; j < k; ++j) { |
727 |
< |
assertEquals(l.get(j), j); |
728 |
< |
} |
807 |
< |
while (q.poll() != null) |
808 |
< |
; |
724 |
> |
assertEquals(k, l.size()); |
725 |
> |
assertEquals(SIZE - k, q.size()); |
726 |
> |
for (int j = 0; j < k; ++j) |
727 |
> |
assertEquals(j, l.get(j)); |
728 |
> |
do {} while (q.poll() != null); |
729 |
|
} |
730 |
|
} |
731 |
|
|
732 |
|
/** |
733 |
< |
* poll and take decrement the waiting consumer count |
733 |
> |
* timed poll() or take() increments the waiting consumer count; |
734 |
> |
* offer(e) decrements the waiting consumer count |
735 |
|
*/ |
736 |
|
public void testWaitingConsumer() throws InterruptedException { |
737 |
|
final LinkedTransferQueue q = new LinkedTransferQueue(); |
738 |
< |
final ConsumerObserver waiting = new ConsumerObserver(); |
739 |
< |
new Thread(new CheckedRunnable() { |
740 |
< |
void realRun() { |
741 |
< |
threadAssertTrue(q.hasWaitingConsumer()); |
742 |
< |
waiting.setWaitingConsumer(q.getWaitingConsumerCount()); |
743 |
< |
threadAssertTrue(q.offer(new Object())); |
744 |
< |
}}).start(); |
745 |
< |
assertTrue(q.poll(LONG_DELAY_MS, MILLISECONDS) != null); |
746 |
< |
assertTrue(q.getWaitingConsumerCount() |
747 |
< |
< waiting.getWaitingConsumers()); |
738 |
> |
assertEquals(0, q.getWaitingConsumerCount()); |
739 |
> |
assertFalse(q.hasWaitingConsumer()); |
740 |
> |
final CountDownLatch threadStarted = new CountDownLatch(1); |
741 |
> |
|
742 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
743 |
> |
public void realRun() throws InterruptedException { |
744 |
> |
threadStarted.countDown(); |
745 |
> |
long startTime = System.nanoTime(); |
746 |
> |
assertSame(one, q.poll(LONG_DELAY_MS, MILLISECONDS)); |
747 |
> |
assertEquals(0, q.getWaitingConsumerCount()); |
748 |
> |
assertFalse(q.hasWaitingConsumer()); |
749 |
> |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
750 |
> |
}}); |
751 |
> |
|
752 |
> |
threadStarted.await(); |
753 |
> |
Callable<Boolean> oneConsumer |
754 |
> |
= new Callable<Boolean>() { public Boolean call() { |
755 |
> |
return q.hasWaitingConsumer() |
756 |
> |
&& q.getWaitingConsumerCount() == 1; }}; |
757 |
> |
waitForThreadToEnterWaitState(t, oneConsumer); |
758 |
> |
|
759 |
> |
assertTrue(q.offer(one)); |
760 |
> |
assertEquals(0, q.getWaitingConsumerCount()); |
761 |
> |
assertFalse(q.hasWaitingConsumer()); |
762 |
> |
|
763 |
> |
awaitTermination(t); |
764 |
|
} |
765 |
|
|
766 |
|
/** |
771 |
|
LinkedTransferQueue q = new LinkedTransferQueue(); |
772 |
|
q.transfer(null); |
773 |
|
shouldThrow(); |
774 |
< |
} catch (NullPointerException ex) { |
838 |
< |
} |
774 |
> |
} catch (NullPointerException success) {} |
775 |
|
} |
776 |
|
|
777 |
|
/** |
778 |
< |
* transfer waits until a poll occurs. The transfered element |
779 |
< |
* is returned by this associated poll. |
778 |
> |
* transfer waits until a poll occurs. The transferred element |
779 |
> |
* is returned by the associated poll. |
780 |
|
*/ |
781 |
|
public void testTransfer2() throws InterruptedException { |
782 |
< |
final LinkedTransferQueue<Integer> q |
783 |
< |
= new LinkedTransferQueue<Integer>(); |
782 |
> |
final LinkedTransferQueue<Integer> q = new LinkedTransferQueue<>(); |
783 |
> |
final CountDownLatch threadStarted = new CountDownLatch(1); |
784 |
|
|
785 |
< |
new Thread(new CheckedRunnable() { |
786 |
< |
void realRun() throws InterruptedException { |
787 |
< |
q.transfer(SIZE); |
788 |
< |
threadAssertTrue(q.isEmpty()); |
789 |
< |
}}).start(); |
785 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
786 |
> |
public void realRun() throws InterruptedException { |
787 |
> |
threadStarted.countDown(); |
788 |
> |
q.transfer(five); |
789 |
> |
checkEmpty(q); |
790 |
> |
}}); |
791 |
|
|
792 |
< |
Thread.sleep(SHORT_DELAY_MS); |
793 |
< |
assertEquals(1, q.size()); |
794 |
< |
assertEquals(SIZE, (int) q.poll()); |
795 |
< |
assertTrue(q.isEmpty()); |
792 |
> |
threadStarted.await(); |
793 |
> |
Callable<Boolean> oneElement |
794 |
> |
= new Callable<Boolean>() { public Boolean call() { |
795 |
> |
return !q.isEmpty() && q.size() == 1; }}; |
796 |
> |
waitForThreadToEnterWaitState(t, oneElement); |
797 |
> |
|
798 |
> |
assertSame(five, q.poll()); |
799 |
> |
checkEmpty(q); |
800 |
> |
awaitTermination(t); |
801 |
|
} |
802 |
|
|
803 |
|
/** |
804 |
|
* transfer waits until a poll occurs, and then transfers in fifo order |
805 |
|
*/ |
806 |
|
public void testTransfer3() throws InterruptedException { |
807 |
< |
final LinkedTransferQueue<Integer> q |
866 |
< |
= new LinkedTransferQueue<Integer>(); |
807 |
> |
final LinkedTransferQueue<Integer> q = new LinkedTransferQueue<>(); |
808 |
|
|
809 |
< |
Thread first = new Thread(new CheckedRunnable() { |
810 |
< |
void realRun() throws InterruptedException { |
811 |
< |
Integer i = SIZE + 1; |
812 |
< |
q.transfer(i); |
813 |
< |
threadAssertTrue(!q.contains(i)); |
873 |
< |
threadAssertEquals(1, q.size()); |
809 |
> |
Thread first = newStartedThread(new CheckedRunnable() { |
810 |
> |
public void realRun() throws InterruptedException { |
811 |
> |
q.transfer(four); |
812 |
> |
assertFalse(q.contains(four)); |
813 |
> |
assertEquals(1, q.size()); |
814 |
|
}}); |
875 |
– |
first.start(); |
815 |
|
|
816 |
< |
Thread interruptedThread = new Thread(new CheckedInterruptedRunnable() { |
817 |
< |
void realRun() throws InterruptedException { |
818 |
< |
while (q.size() == 0) |
819 |
< |
Thread.yield(); |
820 |
< |
q.transfer(SIZE); |
821 |
< |
}}); |
822 |
< |
interruptedThread.start(); |
816 |
> |
Thread interruptedThread = newStartedThread( |
817 |
> |
new CheckedInterruptedRunnable() { |
818 |
> |
public void realRun() throws InterruptedException { |
819 |
> |
while (q.isEmpty()) |
820 |
> |
Thread.yield(); |
821 |
> |
q.transfer(five); |
822 |
> |
}}); |
823 |
|
|
824 |
|
while (q.size() < 2) |
825 |
|
Thread.yield(); |
826 |
|
assertEquals(2, q.size()); |
827 |
< |
assertEquals(SIZE + 1, (int) q.poll()); |
827 |
> |
assertSame(four, q.poll()); |
828 |
|
first.join(); |
829 |
|
assertEquals(1, q.size()); |
830 |
|
interruptedThread.interrupt(); |
831 |
|
interruptedThread.join(); |
832 |
< |
assertEquals(0, q.size()); |
894 |
< |
assertTrue(q.isEmpty()); |
832 |
> |
checkEmpty(q); |
833 |
|
} |
834 |
|
|
835 |
|
/** |
838 |
|
*/ |
839 |
|
public void testTransfer4() throws InterruptedException { |
840 |
|
final LinkedTransferQueue q = new LinkedTransferQueue(); |
841 |
< |
new Thread(new CheckedRunnable() { |
842 |
< |
void realRun() throws InterruptedException { |
841 |
> |
|
842 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
843 |
> |
public void realRun() throws InterruptedException { |
844 |
|
q.transfer(four); |
845 |
< |
threadAssertFalse(q.contains(four)); |
846 |
< |
threadAssertEquals(three, q.poll()); |
847 |
< |
}}).start(); |
848 |
< |
Thread.sleep(MEDIUM_DELAY_MS); |
845 |
> |
assertFalse(q.contains(four)); |
846 |
> |
assertSame(three, q.poll()); |
847 |
> |
}}); |
848 |
> |
|
849 |
> |
while (q.isEmpty()) |
850 |
> |
Thread.yield(); |
851 |
> |
assertFalse(q.isEmpty()); |
852 |
> |
assertEquals(1, q.size()); |
853 |
|
assertTrue(q.offer(three)); |
854 |
< |
assertEquals(four, q.poll()); |
854 |
> |
assertSame(four, q.poll()); |
855 |
> |
awaitTermination(t); |
856 |
|
} |
857 |
|
|
858 |
|
/** |
859 |
< |
* transfer waits until a take occurs. The transfered element |
860 |
< |
* is returned by this associated take. |
859 |
> |
* transfer waits until a take occurs. The transferred element |
860 |
> |
* is returned by the associated take. |
861 |
|
*/ |
862 |
|
public void testTransfer5() throws InterruptedException { |
863 |
< |
final LinkedTransferQueue<Integer> q |
920 |
< |
= new LinkedTransferQueue<Integer>(); |
863 |
> |
final LinkedTransferQueue<Integer> q = new LinkedTransferQueue<>(); |
864 |
|
|
865 |
< |
new Thread(new CheckedRunnable() { |
866 |
< |
void realRun() throws InterruptedException { |
867 |
< |
q.transfer(SIZE); |
868 |
< |
threadAssertTrue(q.isEmpty()); |
869 |
< |
}}).start(); |
865 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
866 |
> |
public void realRun() throws InterruptedException { |
867 |
> |
q.transfer(four); |
868 |
> |
checkEmpty(q); |
869 |
> |
}}); |
870 |
|
|
871 |
< |
Thread.sleep(SHORT_DELAY_MS); |
872 |
< |
assertEquals(SIZE, (int) q.take()); |
873 |
< |
assertTrue(q.isEmpty()); |
871 |
> |
while (q.isEmpty()) |
872 |
> |
Thread.yield(); |
873 |
> |
assertFalse(q.isEmpty()); |
874 |
> |
assertEquals(1, q.size()); |
875 |
> |
assertSame(four, q.take()); |
876 |
> |
checkEmpty(q); |
877 |
> |
awaitTermination(t); |
878 |
|
} |
879 |
|
|
880 |
|
/** |
881 |
|
* tryTransfer(null) throws NullPointerException |
882 |
|
*/ |
883 |
|
public void testTryTransfer1() { |
884 |
+ |
final LinkedTransferQueue q = new LinkedTransferQueue(); |
885 |
|
try { |
938 |
– |
final LinkedTransferQueue q = new LinkedTransferQueue(); |
886 |
|
q.tryTransfer(null); |
887 |
|
shouldThrow(); |
888 |
< |
} catch (NullPointerException ex) { |
942 |
< |
} |
888 |
> |
} catch (NullPointerException success) {} |
889 |
|
} |
890 |
|
|
891 |
|
/** |
892 |
|
* tryTransfer returns false and does not enqueue if there are no |
893 |
|
* consumers waiting to poll or take. |
894 |
|
*/ |
895 |
< |
public void testTryTransfer2() { |
895 |
> |
public void testTryTransfer2() throws InterruptedException { |
896 |
|
final LinkedTransferQueue q = new LinkedTransferQueue(); |
897 |
|
assertFalse(q.tryTransfer(new Object())); |
898 |
|
assertFalse(q.hasWaitingConsumer()); |
899 |
< |
assertTrue(q.isEmpty()); |
954 |
< |
assertEquals(0, q.size()); |
899 |
> |
checkEmpty(q); |
900 |
|
} |
901 |
|
|
902 |
|
/** |
906 |
|
public void testTryTransfer3() throws InterruptedException { |
907 |
|
final Object hotPotato = new Object(); |
908 |
|
final LinkedTransferQueue q = new LinkedTransferQueue(); |
909 |
< |
new Thread(new CheckedRunnable() { |
910 |
< |
void realRun() { |
909 |
> |
|
910 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
911 |
> |
public void realRun() { |
912 |
|
while (! q.hasWaitingConsumer()) |
913 |
|
Thread.yield(); |
914 |
< |
threadAssertTrue(q.hasWaitingConsumer()); |
915 |
< |
threadAssertTrue(q.isEmpty()); |
916 |
< |
threadAssertTrue(q.size() == 0); |
917 |
< |
threadAssertTrue(q.tryTransfer(hotPotato)); |
918 |
< |
}}).start(); |
919 |
< |
assertTrue(q.poll(LONG_DELAY_MS, MILLISECONDS) == hotPotato); |
920 |
< |
assertTrue(q.isEmpty()); |
914 |
> |
assertTrue(q.hasWaitingConsumer()); |
915 |
> |
checkEmpty(q); |
916 |
> |
assertTrue(q.tryTransfer(hotPotato)); |
917 |
> |
}}); |
918 |
> |
|
919 |
> |
long startTime = System.nanoTime(); |
920 |
> |
assertSame(hotPotato, q.poll(LONG_DELAY_MS, MILLISECONDS)); |
921 |
> |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
922 |
> |
checkEmpty(q); |
923 |
> |
awaitTermination(t); |
924 |
|
} |
925 |
|
|
926 |
|
/** |
930 |
|
public void testTryTransfer4() throws InterruptedException { |
931 |
|
final Object hotPotato = new Object(); |
932 |
|
final LinkedTransferQueue q = new LinkedTransferQueue(); |
933 |
< |
new Thread(new CheckedRunnable() { |
934 |
< |
void realRun() { |
933 |
> |
|
934 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
935 |
> |
public void realRun() { |
936 |
|
while (! q.hasWaitingConsumer()) |
937 |
|
Thread.yield(); |
938 |
< |
threadAssertTrue(q.hasWaitingConsumer()); |
939 |
< |
threadAssertTrue(q.isEmpty()); |
940 |
< |
threadAssertTrue(q.size() == 0); |
941 |
< |
threadAssertTrue(q.tryTransfer(hotPotato)); |
942 |
< |
}}).start(); |
943 |
< |
assertTrue(q.take() == hotPotato); |
944 |
< |
assertTrue(q.isEmpty()); |
938 |
> |
assertTrue(q.hasWaitingConsumer()); |
939 |
> |
checkEmpty(q); |
940 |
> |
assertTrue(q.tryTransfer(hotPotato)); |
941 |
> |
}}); |
942 |
> |
|
943 |
> |
assertSame(q.take(), hotPotato); |
944 |
> |
checkEmpty(q); |
945 |
> |
awaitTermination(t); |
946 |
|
} |
947 |
|
|
948 |
|
/** |
949 |
< |
* tryTransfer waits the amount given if interrupted, and |
999 |
< |
* throws interrupted exception |
949 |
> |
* tryTransfer blocks interruptibly if no takers |
950 |
|
*/ |
951 |
|
public void testTryTransfer5() throws InterruptedException { |
952 |
|
final LinkedTransferQueue q = new LinkedTransferQueue(); |
953 |
< |
Thread toInterrupt = new Thread(new CheckedInterruptedRunnable() { |
954 |
< |
void realRun() throws InterruptedException { |
955 |
< |
q.tryTransfer(new Object(), LONG_DELAY_MS, MILLISECONDS); |
953 |
> |
final CountDownLatch pleaseInterrupt = new CountDownLatch(1); |
954 |
> |
assertTrue(q.isEmpty()); |
955 |
> |
|
956 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
957 |
> |
public void realRun() throws InterruptedException { |
958 |
> |
long startTime = System.nanoTime(); |
959 |
> |
Thread.currentThread().interrupt(); |
960 |
> |
try { |
961 |
> |
q.tryTransfer(new Object(), randomTimeout(), randomTimeUnit()); |
962 |
> |
shouldThrow(); |
963 |
> |
} catch (InterruptedException success) {} |
964 |
> |
assertFalse(Thread.interrupted()); |
965 |
> |
|
966 |
> |
pleaseInterrupt.countDown(); |
967 |
> |
try { |
968 |
> |
q.tryTransfer(new Object(), LONG_DELAY_MS, MILLISECONDS); |
969 |
> |
shouldThrow(); |
970 |
> |
} catch (InterruptedException success) {} |
971 |
> |
assertFalse(Thread.interrupted()); |
972 |
> |
|
973 |
> |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
974 |
|
}}); |
975 |
< |
toInterrupt.start(); |
976 |
< |
Thread.sleep(SMALL_DELAY_MS); |
977 |
< |
toInterrupt.interrupt(); |
975 |
> |
|
976 |
> |
await(pleaseInterrupt); |
977 |
> |
if (randomBoolean()) assertThreadBlocks(t, Thread.State.TIMED_WAITING); |
978 |
> |
t.interrupt(); |
979 |
> |
awaitTermination(t); |
980 |
> |
checkEmpty(q); |
981 |
|
} |
982 |
|
|
983 |
|
/** |
984 |
< |
* tryTransfer gives up after the timeout and return false |
984 |
> |
* tryTransfer gives up after the timeout and returns false |
985 |
|
*/ |
986 |
|
public void testTryTransfer6() throws InterruptedException { |
987 |
|
final LinkedTransferQueue q = new LinkedTransferQueue(); |
988 |
< |
new Thread(new CheckedRunnable() { |
989 |
< |
void realRun() throws InterruptedException { |
990 |
< |
threadAssertFalse |
991 |
< |
(q.tryTransfer(new Object(), |
992 |
< |
SHORT_DELAY_MS, MILLISECONDS)); |
993 |
< |
}}).start(); |
994 |
< |
Thread.sleep(LONG_DELAY_MS); |
995 |
< |
assertTrue(q.isEmpty()); |
988 |
> |
|
989 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
990 |
> |
public void realRun() throws InterruptedException { |
991 |
> |
long startTime = System.nanoTime(); |
992 |
> |
assertFalse(q.tryTransfer(new Object(), |
993 |
> |
timeoutMillis(), MILLISECONDS)); |
994 |
> |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
995 |
> |
checkEmpty(q); |
996 |
> |
}}); |
997 |
> |
|
998 |
> |
awaitTermination(t); |
999 |
> |
checkEmpty(q); |
1000 |
|
} |
1001 |
|
|
1002 |
|
/** |
1006 |
|
public void testTryTransfer7() throws InterruptedException { |
1007 |
|
final LinkedTransferQueue q = new LinkedTransferQueue(); |
1008 |
|
assertTrue(q.offer(four)); |
1009 |
< |
new Thread(new CheckedRunnable() { |
1010 |
< |
void realRun() throws InterruptedException { |
1011 |
< |
threadAssertTrue(q.tryTransfer(five, |
1012 |
< |
LONG_DELAY_MS, MILLISECONDS)); |
1013 |
< |
threadAssertTrue(q.isEmpty()); |
1014 |
< |
}}).start(); |
1015 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1009 |
> |
|
1010 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
1011 |
> |
public void realRun() throws InterruptedException { |
1012 |
> |
long startTime = System.nanoTime(); |
1013 |
> |
assertTrue(q.tryTransfer(five, LONG_DELAY_MS, MILLISECONDS)); |
1014 |
> |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
1015 |
> |
checkEmpty(q); |
1016 |
> |
}}); |
1017 |
> |
|
1018 |
> |
while (q.size() != 2) |
1019 |
> |
Thread.yield(); |
1020 |
|
assertEquals(2, q.size()); |
1021 |
< |
assertEquals(four, q.poll()); |
1022 |
< |
assertEquals(five, q.poll()); |
1023 |
< |
assertTrue(q.isEmpty()); |
1021 |
> |
assertSame(four, q.poll()); |
1022 |
> |
assertSame(five, q.poll()); |
1023 |
> |
checkEmpty(q); |
1024 |
> |
awaitTermination(t); |
1025 |
|
} |
1026 |
|
|
1027 |
|
/** |
1028 |
< |
* tryTransfer attempts to enqueue into the q and fails returning |
1029 |
< |
* false not enqueueing and the successive poll is null |
1028 |
> |
* tryTransfer attempts to enqueue into the queue and fails |
1029 |
> |
* returning false not enqueueing and the successive poll is null |
1030 |
|
*/ |
1031 |
|
public void testTryTransfer8() throws InterruptedException { |
1032 |
|
final LinkedTransferQueue q = new LinkedTransferQueue(); |
1033 |
|
assertTrue(q.offer(four)); |
1034 |
|
assertEquals(1, q.size()); |
1035 |
< |
assertFalse(q.tryTransfer(five, SHORT_DELAY_MS, MILLISECONDS)); |
1035 |
> |
long startTime = System.nanoTime(); |
1036 |
> |
assertFalse(q.tryTransfer(five, timeoutMillis(), MILLISECONDS)); |
1037 |
> |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
1038 |
|
assertEquals(1, q.size()); |
1039 |
< |
assertEquals(four, q.poll()); |
1058 |
< |
threadAssertTrue(q.isEmpty()); |
1039 |
> |
assertSame(four, q.poll()); |
1040 |
|
assertNull(q.poll()); |
1041 |
+ |
checkEmpty(q); |
1042 |
|
} |
1043 |
|
|
1044 |
|
private LinkedTransferQueue<Integer> populatedQueue(int n) { |
1045 |
< |
LinkedTransferQueue<Integer> q = new LinkedTransferQueue<Integer>(); |
1046 |
< |
assertTrue(q.isEmpty()); |
1045 |
> |
LinkedTransferQueue<Integer> q = new LinkedTransferQueue<>(); |
1046 |
> |
checkEmpty(q); |
1047 |
|
for (int i = 0; i < n; i++) { |
1048 |
|
assertEquals(i, q.size()); |
1049 |
|
assertTrue(q.offer(i)); |
1053 |
|
return q; |
1054 |
|
} |
1055 |
|
|
1056 |
< |
private static class ConsumerObserver { |
1057 |
< |
|
1058 |
< |
private int waitingConsumers; |
1059 |
< |
|
1060 |
< |
private ConsumerObserver() { |
1061 |
< |
} |
1062 |
< |
|
1063 |
< |
private void setWaitingConsumer(int i) { |
1064 |
< |
this.waitingConsumers = i; |
1065 |
< |
} |
1066 |
< |
|
1067 |
< |
private int getWaitingConsumers() { |
1086 |
< |
return waitingConsumers; |
1056 |
> |
/** |
1057 |
> |
* remove(null), contains(null) always return false |
1058 |
> |
*/ |
1059 |
> |
public void testNeverContainsNull() { |
1060 |
> |
Collection<?>[] qs = { |
1061 |
> |
new LinkedTransferQueue<Object>(), |
1062 |
> |
populatedQueue(2), |
1063 |
> |
}; |
1064 |
> |
|
1065 |
> |
for (Collection<?> q : qs) { |
1066 |
> |
assertFalse(q.contains(null)); |
1067 |
> |
assertFalse(q.remove(null)); |
1068 |
|
} |
1069 |
|
} |
1070 |
|
} |