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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; |
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import java.io.BufferedOutputStream; |
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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; |
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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; |
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import java.util.ConcurrentModificationException; |
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import java.util.Collection; |
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import java.util.Iterator; |
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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 java.util.Queue; |
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import java.util.concurrent.BlockingQueue; |
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import java.util.concurrent.Callable; |
19 |
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import java.util.concurrent.CountDownLatch; |
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import java.util.concurrent.Executors; |
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import java.util.concurrent.ExecutorService; |
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import java.util.concurrent.LinkedTransferQueue; |
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|
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import junit.framework.Test; |
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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 { |
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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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} |
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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(); } |
42 |
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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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return newTestSuite(LinkedTransferQueueTest.class, |
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new Generic().testSuite(), |
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CollectionTest.testSuite(new Implementation())); |
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} |
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|
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/** |
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* Constructor builds new queue with size being zero and empty being true |
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* Constructor builds new queue with size being zero and empty |
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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 NullPointerException |
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* Initializing constructor with null collection throws |
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* NullPointerException |
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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(); |
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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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* Initializing from Collection of null elements throws NullPointerException |
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* Initializing from Collection of null elements throws |
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* 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]); |
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try { |
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Integer[] ints = new Integer[SIZE]; |
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LinkedTransferQueue q = new LinkedTransferQueue(Arrays.asList(ints)); |
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new LinkedTransferQueue(elements); |
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shouldThrow(); |
80 |
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} catch (NullPointerException success) { |
61 |
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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 |
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); |
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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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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) { |
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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 |
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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 = new LinkedTransferQueue(Arrays.asList(ints)); |
108 |
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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]), |
114 |
> |
intList.toArray(new Object[0]))); |
115 |
> |
assertTrue(Arrays.equals(q.toArray(new Object[SIZE]), |
116 |
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intList.toArray(new Object[SIZE]))); |
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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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} |
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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); |
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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(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 |
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assertEquals(Integer.MAX_VALUE, q.remainingCapacity()); |
134 |
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assertEquals(i, q.size()); |
135 |
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q.add(i); |
111 |
< |
} |
112 |
< |
} |
113 |
< |
|
114 |
< |
/** |
115 |
< |
* offer(null) throws NullPointerException |
116 |
< |
*/ |
117 |
< |
public void testOfferNull() { |
118 |
< |
try { |
119 |
< |
LinkedTransferQueue q = new LinkedTransferQueue(); |
120 |
< |
q.offer(null); |
121 |
< |
shouldThrow(); |
122 |
< |
} catch (NullPointerException success) { |
123 |
< |
} |
124 |
< |
} |
125 |
< |
|
126 |
< |
/** |
127 |
< |
* add(null) throws NullPointerException |
128 |
< |
*/ |
129 |
< |
public void testAddNull() { |
130 |
< |
try { |
131 |
< |
LinkedTransferQueue q = new LinkedTransferQueue(); |
132 |
< |
q.add(null); |
133 |
< |
shouldThrow(); |
134 |
< |
} catch (NullPointerException success) { |
135 |
< |
} |
136 |
< |
} |
137 |
< |
|
138 |
< |
/** |
139 |
< |
* addAll(null) throws NullPointerException |
140 |
< |
*/ |
141 |
< |
public void testAddAll1() { |
142 |
< |
try { |
143 |
< |
LinkedTransferQueue q = new LinkedTransferQueue(); |
144 |
< |
q.addAll(null); |
145 |
< |
shouldThrow(); |
146 |
< |
} 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 { |
155 |
– |
LinkedTransferQueue q = populatedQueue(SIZE); |
145 |
|
q.addAll(q); |
146 |
|
shouldThrow(); |
147 |
< |
} catch (IllegalArgumentException success) { |
159 |
< |
} |
160 |
< |
} |
161 |
< |
|
162 |
< |
/** |
163 |
< |
* addAll of a collection with null elements throws NullPointerException |
164 |
< |
*/ |
165 |
< |
public void testAddAll2() { |
166 |
< |
try { |
167 |
< |
LinkedTransferQueue q = new LinkedTransferQueue(); |
168 |
< |
Integer[] ints = new Integer[SIZE]; |
169 |
< |
q.addAll(Arrays.asList(ints)); |
170 |
< |
shouldThrow(); |
171 |
< |
} catch (NullPointerException success) { |
172 |
< |
} |
147 |
> |
} catch (IllegalArgumentException success) {} |
148 |
|
} |
149 |
|
|
150 |
|
/** |
151 |
< |
* addAll of a collection with any null elements throws NullPointerException after |
152 |
< |
* 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 { |
181 |
– |
LinkedTransferQueue q = new LinkedTransferQueue(); |
182 |
– |
Integer[] ints = new Integer[SIZE]; |
183 |
– |
for (int i = 0; i < SIZE - 1; ++i) { |
184 |
– |
ints[i] = i; |
185 |
– |
} |
160 |
|
q.addAll(Arrays.asList(ints)); |
161 |
|
shouldThrow(); |
162 |
< |
} catch (NullPointerException success) { |
189 |
< |
} |
162 |
> |
} catch (NullPointerException success) {} |
163 |
|
} |
164 |
|
|
165 |
|
/** |
180 |
|
} |
181 |
|
|
182 |
|
/** |
210 |
– |
* put(null) throws NullPointerException |
211 |
– |
*/ |
212 |
– |
public void testPutNull() throws InterruptedException { |
213 |
– |
try { |
214 |
– |
LinkedTransferQueue q = new LinkedTransferQueue(); |
215 |
– |
q.put(null); |
216 |
– |
shouldThrow(); |
217 |
– |
} catch (NullPointerException success) {} |
218 |
– |
} |
219 |
– |
|
220 |
– |
/** |
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 |
|
} |
229 |
– |
assertEquals(q.size(), SIZE); |
192 |
|
} |
193 |
|
|
194 |
|
/** |
202 |
|
} |
203 |
|
|
204 |
|
/** |
205 |
< |
* take blocks interruptibly when empty |
205 |
> |
* take removes existing elements until empty, then blocks interruptibly |
206 |
|
*/ |
207 |
< |
public void testTakeFromEmpty() throws InterruptedException { |
208 |
< |
final LinkedTransferQueue q = new LinkedTransferQueue(); |
209 |
< |
Thread t = new Thread(new Runnable() { |
210 |
< |
public void run() { |
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++) assertEquals(i, q.take()); |
213 |
> |
|
214 |
> |
Thread.currentThread().interrupt(); |
215 |
|
try { |
216 |
|
q.take(); |
217 |
< |
threadShouldThrow(); |
218 |
< |
} catch (InterruptedException success) { |
219 |
< |
} catch (Throwable ex) { |
254 |
< |
threadUnexpectedException(ex); |
255 |
< |
} |
256 |
< |
}}); |
257 |
< |
t.start(); |
258 |
< |
Thread.sleep(SHORT_DELAY_MS); |
259 |
< |
t.interrupt(); |
260 |
< |
t.join(); |
261 |
< |
} |
217 |
> |
shouldThrow(); |
218 |
> |
} catch (InterruptedException success) {} |
219 |
> |
assertFalse(Thread.interrupted()); |
220 |
|
|
221 |
< |
/** |
264 |
< |
* Take removes existing elements until empty, then blocks interruptibly |
265 |
< |
*/ |
266 |
< |
public void testBlockingTake() throws InterruptedException { |
267 |
< |
Thread t = new Thread(new Runnable() { |
268 |
< |
public void run() { |
221 |
> |
pleaseInterrupt.countDown(); |
222 |
|
try { |
270 |
– |
LinkedTransferQueue<Integer> q = populatedQueue(SIZE); |
271 |
– |
for (int i = 0; i < SIZE; ++i) { |
272 |
– |
threadAssertEquals(i, (int) q.take()); |
273 |
– |
} |
223 |
|
q.take(); |
224 |
< |
threadShouldThrow(); |
225 |
< |
} catch (InterruptedException success) { |
226 |
< |
} catch (Throwable ex) { |
278 |
< |
threadUnexpectedException(ex); |
279 |
< |
} |
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 |
> |
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); |
252 |
|
for (int i = 0; i < SIZE; ++i) { |
253 |
< |
assertEquals(i, (int) q.poll(0, TimeUnit.MILLISECONDS)); |
253 |
> |
assertEquals(i, (int) q.poll(0, MILLISECONDS)); |
254 |
|
} |
255 |
< |
assertNull(q.poll(0, TimeUnit.MILLISECONDS)); |
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, TimeUnit.MILLISECONDS)); |
266 |
< |
} |
267 |
< |
assertNull(q.poll(SHORT_DELAY_MS, TimeUnit.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 Runnable() { |
281 |
< |
public void run() { |
280 |
> |
final BlockingQueue<Integer> q = populatedQueue(SIZE); |
281 |
> |
final CountDownLatch aboutToWait = 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 |
> |
aboutToWait.countDown(); |
288 |
|
try { |
289 |
< |
LinkedTransferQueue<Integer> q = populatedQueue(SIZE); |
290 |
< |
for (int i = 0; i < SIZE; ++i) { |
291 |
< |
threadAssertEquals(i, (int) q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS)); |
292 |
< |
} |
332 |
< |
threadAssertNull(q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS)); |
333 |
< |
} catch (InterruptedException success) { |
334 |
< |
} catch (Throwable ex) { |
335 |
< |
threadUnexpectedException(ex); |
336 |
< |
} |
289 |
> |
q.poll(LONG_DELAY_MS, MILLISECONDS); |
290 |
> |
shouldThrow(); |
291 |
> |
} catch (InterruptedException success) {} |
292 |
> |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
293 |
|
}}); |
294 |
< |
t.start(); |
295 |
< |
Thread.sleep(SHORT_DELAY_MS); |
294 |
> |
|
295 |
> |
await(aboutToWait); |
296 |
> |
waitForThreadToEnterWaitState(t); |
297 |
|
t.interrupt(); |
298 |
< |
t.join(); |
298 |
> |
awaitTermination(t); |
299 |
> |
checkEmpty(q); |
300 |
|
} |
301 |
|
|
302 |
|
/** |
303 |
< |
* timed poll before a delayed offer fails; after offer succeeds; |
304 |
< |
* on interruption throws |
303 |
> |
* timed poll after thread interrupted throws InterruptedException |
304 |
> |
* instead of returning timeout status |
305 |
|
*/ |
306 |
< |
public void testTimedPollWithOffer() throws InterruptedException { |
307 |
< |
final LinkedTransferQueue q = new LinkedTransferQueue(); |
308 |
< |
Thread t = new Thread(new Runnable() { |
309 |
< |
public void run() { |
306 |
> |
public void testTimedPollAfterInterrupt() throws InterruptedException { |
307 |
> |
final BlockingQueue<Integer> q = populatedQueue(SIZE); |
308 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
309 |
> |
public void realRun() throws InterruptedException { |
310 |
> |
long startTime = System.nanoTime(); |
311 |
> |
Thread.currentThread().interrupt(); |
312 |
> |
for (int i = 0; i < SIZE; ++i) |
313 |
> |
assertEquals(i, (int) q.poll(LONG_DELAY_MS, MILLISECONDS)); |
314 |
|
try { |
315 |
< |
threadAssertNull(q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS)); |
316 |
< |
q.poll(LONG_DELAY_MS, TimeUnit.MILLISECONDS); |
317 |
< |
q.poll(LONG_DELAY_MS, TimeUnit.MILLISECONDS); |
318 |
< |
threadShouldThrow(); |
357 |
< |
} catch (InterruptedException success) { |
358 |
< |
} catch (Throwable ex) { |
359 |
< |
threadUnexpectedException(ex); |
360 |
< |
} |
315 |
> |
q.poll(LONG_DELAY_MS, MILLISECONDS); |
316 |
> |
shouldThrow(); |
317 |
> |
} catch (InterruptedException success) {} |
318 |
> |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
319 |
|
}}); |
320 |
< |
t.start(); |
321 |
< |
Thread.sleep(SMALL_DELAY_MS); |
322 |
< |
assertTrue(q.offer(zero, SHORT_DELAY_MS, TimeUnit.MILLISECONDS)); |
365 |
< |
t.interrupt(); |
366 |
< |
t.join(); |
320 |
> |
|
321 |
> |
awaitTermination(t); |
322 |
> |
checkEmpty(q); |
323 |
|
} |
324 |
|
|
325 |
|
/** |
326 |
|
* peek returns next element, or null if empty |
327 |
|
*/ |
328 |
< |
public void testPeek() { |
328 |
> |
public void testPeek() throws InterruptedException { |
329 |
|
LinkedTransferQueue<Integer> q = populatedQueue(SIZE); |
330 |
|
for (int i = 0; i < SIZE; ++i) { |
331 |
|
assertEquals(i, (int) q.peek()); |
334 |
|
i != (int) q.peek()); |
335 |
|
} |
336 |
|
assertNull(q.peek()); |
337 |
+ |
checkEmpty(q); |
338 |
|
} |
339 |
|
|
340 |
|
/** |
341 |
|
* element returns next element, or throws NoSuchElementException if empty |
342 |
|
*/ |
343 |
< |
public void testElement() { |
343 |
> |
public void testElement() throws InterruptedException { |
344 |
|
LinkedTransferQueue<Integer> q = populatedQueue(SIZE); |
345 |
|
for (int i = 0; i < SIZE; ++i) { |
346 |
|
assertEquals(i, (int) q.element()); |
349 |
|
try { |
350 |
|
q.element(); |
351 |
|
shouldThrow(); |
352 |
< |
} catch (NoSuchElementException success) { |
353 |
< |
} |
352 |
> |
} catch (NoSuchElementException success) {} |
353 |
> |
checkEmpty(q); |
354 |
|
} |
355 |
|
|
356 |
|
/** |
357 |
|
* remove removes next element, or throws NoSuchElementException if empty |
358 |
|
*/ |
359 |
< |
public void testRemove() { |
359 |
> |
public void testRemove() throws InterruptedException { |
360 |
|
LinkedTransferQueue<Integer> q = populatedQueue(SIZE); |
361 |
|
for (int i = 0; i < SIZE; ++i) { |
362 |
|
assertEquals(i, (int) q.remove()); |
364 |
|
try { |
365 |
|
q.remove(); |
366 |
|
shouldThrow(); |
367 |
< |
} catch (NoSuchElementException success) { |
368 |
< |
} |
412 |
< |
} |
413 |
< |
|
414 |
< |
/** |
415 |
< |
* remove(x) removes x and returns true if present |
416 |
< |
*/ |
417 |
< |
public void testRemoveElement() { |
418 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
419 |
< |
for (int i = 1; i < SIZE; i += 2) { |
420 |
< |
assertTrue(q.remove(i)); |
421 |
< |
} |
422 |
< |
for (int i = 0; i < SIZE; i += 2) { |
423 |
< |
assertTrue(q.remove(i)); |
424 |
< |
assertFalse(q.remove(i + 1)); |
425 |
< |
} |
426 |
< |
assertTrue(q.isEmpty()); |
367 |
> |
} catch (NoSuchElementException success) {} |
368 |
> |
checkEmpty(q); |
369 |
|
} |
370 |
|
|
371 |
|
/** |
378 |
|
assertTrue(q.remove(one)); |
379 |
|
assertTrue(q.remove(two)); |
380 |
|
assertTrue(q.add(three)); |
381 |
< |
assertTrue(q.take() != null); |
381 |
> |
assertSame(q.take(), three); |
382 |
|
} |
383 |
|
|
384 |
|
/** |
396 |
|
/** |
397 |
|
* clear removes all elements |
398 |
|
*/ |
399 |
< |
public void testClear() { |
399 |
> |
public void testClear() throws InterruptedException { |
400 |
|
LinkedTransferQueue q = populatedQueue(SIZE); |
401 |
|
q.clear(); |
402 |
< |
assertTrue(q.isEmpty()); |
461 |
< |
assertEquals(0, q.size()); |
402 |
> |
checkEmpty(q); |
403 |
|
assertEquals(Integer.MAX_VALUE, q.remainingCapacity()); |
404 |
|
q.add(one); |
405 |
|
assertFalse(q.isEmpty()); |
406 |
+ |
assertEquals(1, q.size()); |
407 |
|
assertTrue(q.contains(one)); |
408 |
|
q.clear(); |
409 |
< |
assertTrue(q.isEmpty()); |
409 |
> |
checkEmpty(q); |
410 |
|
} |
411 |
|
|
412 |
|
/** |
414 |
|
*/ |
415 |
|
public void testContainsAll() { |
416 |
|
LinkedTransferQueue<Integer> q = populatedQueue(SIZE); |
417 |
< |
LinkedTransferQueue<Integer> p = new LinkedTransferQueue<Integer>(); |
417 |
> |
LinkedTransferQueue<Integer> p = new LinkedTransferQueue<>(); |
418 |
|
for (int i = 0; i < SIZE; ++i) { |
419 |
|
assertTrue(q.containsAll(p)); |
420 |
|
assertFalse(p.containsAll(q)); |
424 |
|
} |
425 |
|
|
426 |
|
/** |
427 |
< |
* retainAll(c) retains only those elements of c and reports true if changed |
427 |
> |
* retainAll(c) retains only those elements of c and reports true |
428 |
> |
* if changed |
429 |
|
*/ |
430 |
|
public void testRetainAll() { |
431 |
|
LinkedTransferQueue q = populatedQueue(SIZE); |
444 |
|
} |
445 |
|
|
446 |
|
/** |
447 |
< |
* removeAll(c) removes only those elements of c and reports true if changed |
447 |
> |
* removeAll(c) removes only those elements of c and reports true |
448 |
> |
* if changed |
449 |
|
*/ |
450 |
|
public void testRemoveAll() { |
451 |
|
for (int i = 1; i < SIZE; ++i) { |
460 |
|
} |
461 |
|
|
462 |
|
/** |
463 |
< |
* toArray contains all elements |
463 |
> |
* toArray() contains all elements in FIFO order |
464 |
|
*/ |
465 |
< |
public void testToArray() throws InterruptedException { |
465 |
> |
public void testToArray() { |
466 |
|
LinkedTransferQueue q = populatedQueue(SIZE); |
467 |
|
Object[] o = q.toArray(); |
468 |
|
for (int i = 0; i < o.length; i++) { |
469 |
< |
assertEquals(o[i], q.take()); |
469 |
> |
assertSame(o[i], q.poll()); |
470 |
|
} |
471 |
|
} |
472 |
|
|
473 |
|
/** |
474 |
< |
* toArray(a) contains all elements |
474 |
> |
* toArray(a) contains all elements in FIFO order |
475 |
|
*/ |
476 |
< |
public void testToArray2() throws InterruptedException { |
476 |
> |
public void testToArray2() { |
477 |
|
LinkedTransferQueue<Integer> q = populatedQueue(SIZE); |
478 |
|
Integer[] ints = new Integer[SIZE]; |
479 |
< |
ints = q.toArray(ints); |
479 |
> |
Integer[] array = q.toArray(ints); |
480 |
> |
assertSame(ints, array); |
481 |
|
for (int i = 0; i < ints.length; i++) { |
482 |
< |
assertEquals(ints[i], q.take()); |
482 |
> |
assertSame(ints[i], q.poll()); |
483 |
|
} |
484 |
|
} |
485 |
|
|
486 |
|
/** |
487 |
< |
* toArray(null) throws NullPointerException |
543 |
< |
*/ |
544 |
< |
public void testToArray_BadArg() { |
545 |
< |
try { |
546 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
547 |
< |
Object o[] = q.toArray(null); |
548 |
< |
shouldThrow(); |
549 |
< |
} catch (NullPointerException success) { |
550 |
< |
} |
551 |
< |
} |
552 |
< |
|
553 |
< |
/** |
554 |
< |
* toArray with incompatible array type throws CCE |
487 |
> |
* toArray(incompatible array type) throws ArrayStoreException |
488 |
|
*/ |
489 |
|
public void testToArray1_BadArg() { |
490 |
+ |
LinkedTransferQueue q = populatedQueue(SIZE); |
491 |
|
try { |
492 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
559 |
< |
Object o[] = q.toArray(new String[10]); |
492 |
> |
q.toArray(new String[10]); |
493 |
|
shouldThrow(); |
494 |
< |
} catch (ArrayStoreException success) { |
562 |
< |
} |
494 |
> |
} catch (ArrayStoreException success) {} |
495 |
|
} |
496 |
|
|
497 |
|
/** |
500 |
|
public void testIterator() throws InterruptedException { |
501 |
|
LinkedTransferQueue q = populatedQueue(SIZE); |
502 |
|
Iterator it = q.iterator(); |
503 |
< |
while (it.hasNext()) { |
503 |
> |
int i; |
504 |
> |
for (i = 0; it.hasNext(); i++) |
505 |
> |
assertTrue(q.contains(it.next())); |
506 |
> |
assertEquals(i, SIZE); |
507 |
> |
assertIteratorExhausted(it); |
508 |
> |
|
509 |
> |
it = q.iterator(); |
510 |
> |
for (i = 0; it.hasNext(); i++) |
511 |
|
assertEquals(it.next(), q.take()); |
512 |
< |
} |
512 |
> |
assertEquals(i, SIZE); |
513 |
> |
assertIteratorExhausted(it); |
514 |
> |
} |
515 |
> |
|
516 |
> |
/** |
517 |
> |
* iterator of empty collection has no elements |
518 |
> |
*/ |
519 |
> |
public void testEmptyIterator() { |
520 |
> |
assertIteratorExhausted(new LinkedTransferQueue().iterator()); |
521 |
|
} |
522 |
|
|
523 |
|
/** |
524 |
< |
* iterator.remove removes current element |
524 |
> |
* iterator.remove() removes current element |
525 |
|
*/ |
526 |
|
public void testIteratorRemove() { |
527 |
|
final LinkedTransferQueue q = new LinkedTransferQueue(); |
534 |
|
it.remove(); |
535 |
|
|
536 |
|
it = q.iterator(); |
537 |
< |
assertEquals(it.next(), one); |
538 |
< |
assertEquals(it.next(), three); |
537 |
> |
assertSame(it.next(), one); |
538 |
> |
assertSame(it.next(), three); |
539 |
|
assertFalse(it.hasNext()); |
540 |
|
} |
541 |
|
|
543 |
|
* iterator ordering is FIFO |
544 |
|
*/ |
545 |
|
public void testIteratorOrdering() { |
546 |
< |
final LinkedTransferQueue<Integer> q = new LinkedTransferQueue<Integer>(); |
546 |
> |
final LinkedTransferQueue<Integer> q = new LinkedTransferQueue<>(); |
547 |
|
assertEquals(Integer.MAX_VALUE, q.remainingCapacity()); |
548 |
|
q.add(one); |
549 |
|
q.add(two); |
578 |
|
LinkedTransferQueue q = populatedQueue(SIZE); |
579 |
|
String s = q.toString(); |
580 |
|
for (int i = 0; i < SIZE; ++i) { |
581 |
< |
assertTrue(s.indexOf(String.valueOf(i)) >= 0); |
581 |
> |
assertTrue(s.contains(String.valueOf(i))); |
582 |
|
} |
583 |
|
} |
584 |
|
|
587 |
|
*/ |
588 |
|
public void testOfferInExecutor() { |
589 |
|
final LinkedTransferQueue q = new LinkedTransferQueue(); |
590 |
< |
q.add(one); |
591 |
< |
q.add(two); |
592 |
< |
ExecutorService executor = Executors.newFixedThreadPool(2); |
593 |
< |
executor.execute(new Runnable() { |
594 |
< |
public void run() { |
595 |
< |
try { |
596 |
< |
threadAssertTrue(q.offer(three, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS)); |
597 |
< |
} catch (Throwable ex) { |
598 |
< |
threadUnexpectedException(ex); |
599 |
< |
} |
600 |
< |
}}); |
654 |
< |
|
655 |
< |
executor.execute(new Runnable() { |
656 |
< |
public void run() { |
657 |
< |
try { |
658 |
< |
Thread.sleep(SMALL_DELAY_MS); |
659 |
< |
threadAssertEquals(one, q.take()); |
660 |
< |
} catch (Throwable ex) { |
661 |
< |
threadUnexpectedException(ex); |
662 |
< |
} |
663 |
< |
}}); |
590 |
> |
final CheckedBarrier threadsStarted = new CheckedBarrier(2); |
591 |
> |
final ExecutorService executor = Executors.newFixedThreadPool(2); |
592 |
> |
try (PoolCleaner cleaner = cleaner(executor)) { |
593 |
> |
|
594 |
> |
executor.execute(new CheckedRunnable() { |
595 |
> |
public void realRun() throws InterruptedException { |
596 |
> |
threadsStarted.await(); |
597 |
> |
long startTime = System.nanoTime(); |
598 |
> |
assertTrue(q.offer(one, LONG_DELAY_MS, MILLISECONDS)); |
599 |
> |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
600 |
> |
}}); |
601 |
|
|
602 |
< |
joinPool(executor); |
602 |
> |
executor.execute(new CheckedRunnable() { |
603 |
> |
public void realRun() throws InterruptedException { |
604 |
> |
threadsStarted.await(); |
605 |
> |
assertSame(one, q.take()); |
606 |
> |
checkEmpty(q); |
607 |
> |
}}); |
608 |
> |
} |
609 |
|
} |
610 |
|
|
611 |
|
/** |
612 |
< |
* poll retrieves elements across Executor threads |
612 |
> |
* timed poll retrieves elements across Executor threads |
613 |
|
*/ |
614 |
|
public void testPollInExecutor() { |
615 |
|
final LinkedTransferQueue q = new LinkedTransferQueue(); |
616 |
< |
ExecutorService executor = Executors.newFixedThreadPool(2); |
617 |
< |
executor.execute(new Runnable() { |
618 |
< |
public void run() { |
619 |
< |
try { |
620 |
< |
threadAssertNull(q.poll()); |
621 |
< |
threadAssertTrue(null != q.poll(MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS)); |
622 |
< |
threadAssertTrue(q.isEmpty()); |
623 |
< |
} catch (Throwable ex) { |
624 |
< |
threadUnexpectedException(ex); |
625 |
< |
} |
626 |
< |
}}); |
616 |
> |
final CheckedBarrier threadsStarted = new CheckedBarrier(2); |
617 |
> |
final ExecutorService executor = Executors.newFixedThreadPool(2); |
618 |
> |
try (PoolCleaner cleaner = cleaner(executor)) { |
619 |
> |
|
620 |
> |
executor.execute(new CheckedRunnable() { |
621 |
> |
public void realRun() throws InterruptedException { |
622 |
> |
assertNull(q.poll()); |
623 |
> |
threadsStarted.await(); |
624 |
> |
long startTime = System.nanoTime(); |
625 |
> |
assertSame(one, q.poll(LONG_DELAY_MS, MILLISECONDS)); |
626 |
> |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
627 |
> |
checkEmpty(q); |
628 |
> |
}}); |
629 |
|
|
630 |
< |
executor.execute(new Runnable() { |
631 |
< |
public void run() { |
632 |
< |
try { |
688 |
< |
Thread.sleep(SMALL_DELAY_MS); |
630 |
> |
executor.execute(new CheckedRunnable() { |
631 |
> |
public void realRun() throws InterruptedException { |
632 |
> |
threadsStarted.await(); |
633 |
|
q.put(one); |
634 |
< |
} catch (Throwable ex) { |
635 |
< |
threadUnexpectedException(ex); |
692 |
< |
} |
693 |
< |
}}); |
694 |
< |
|
695 |
< |
joinPool(executor); |
634 |
> |
}}); |
635 |
> |
} |
636 |
|
} |
637 |
|
|
638 |
|
/** |
639 |
|
* A deserialized serialized queue has same elements in same order |
640 |
|
*/ |
641 |
|
public void testSerialization() throws Exception { |
642 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
643 |
< |
|
704 |
< |
ByteArrayOutputStream bout = new ByteArrayOutputStream(10000); |
705 |
< |
ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout)); |
706 |
< |
out.writeObject(q); |
707 |
< |
out.close(); |
708 |
< |
|
709 |
< |
ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray()); |
710 |
< |
ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin)); |
711 |
< |
LinkedTransferQueue r = (LinkedTransferQueue) in.readObject(); |
642 |
> |
Queue x = populatedQueue(SIZE); |
643 |
> |
Queue y = serialClone(x); |
644 |
|
|
645 |
< |
assertEquals(q.size(), r.size()); |
646 |
< |
while (!q.isEmpty()) { |
647 |
< |
assertEquals(q.remove(), r.remove()); |
648 |
< |
} |
649 |
< |
} |
650 |
< |
|
651 |
< |
/** |
720 |
< |
* drainTo(null) throws NullPointerException |
721 |
< |
*/ |
722 |
< |
public void testDrainToNull() { |
723 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
724 |
< |
try { |
725 |
< |
q.drainTo(null); |
726 |
< |
shouldThrow(); |
727 |
< |
} catch (NullPointerException success) { |
728 |
< |
} |
729 |
< |
} |
730 |
< |
|
731 |
< |
/** |
732 |
< |
* drainTo(this) throws IllegalArgumentException |
733 |
< |
*/ |
734 |
< |
public void testDrainToSelf() { |
735 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
736 |
< |
try { |
737 |
< |
q.drainTo(q); |
738 |
< |
shouldThrow(); |
739 |
< |
} catch (IllegalArgumentException success) { |
645 |
> |
assertNotSame(y, x); |
646 |
> |
assertEquals(x.size(), y.size()); |
647 |
> |
assertEquals(x.toString(), y.toString()); |
648 |
> |
assertTrue(Arrays.equals(x.toArray(), y.toArray())); |
649 |
> |
while (!x.isEmpty()) { |
650 |
> |
assertFalse(y.isEmpty()); |
651 |
> |
assertEquals(x.remove(), y.remove()); |
652 |
|
} |
653 |
+ |
assertTrue(y.isEmpty()); |
654 |
|
} |
655 |
|
|
656 |
|
/** |
660 |
|
LinkedTransferQueue q = populatedQueue(SIZE); |
661 |
|
ArrayList l = new ArrayList(); |
662 |
|
q.drainTo(l); |
663 |
< |
assertEquals(q.size(), 0); |
664 |
< |
assertEquals(l.size(), SIZE); |
663 |
> |
assertEquals(0, q.size()); |
664 |
> |
assertEquals(SIZE, l.size()); |
665 |
|
for (int i = 0; i < SIZE; ++i) { |
666 |
< |
assertEquals(l.get(i), i); |
666 |
> |
assertEquals(i, l.get(i)); |
667 |
|
} |
668 |
|
q.add(zero); |
669 |
|
q.add(one); |
672 |
|
assertTrue(q.contains(one)); |
673 |
|
l.clear(); |
674 |
|
q.drainTo(l); |
675 |
< |
assertEquals(q.size(), 0); |
676 |
< |
assertEquals(l.size(), 2); |
675 |
> |
assertEquals(0, q.size()); |
676 |
> |
assertEquals(2, l.size()); |
677 |
|
for (int i = 0; i < 2; ++i) { |
678 |
< |
assertEquals(l.get(i), i); |
678 |
> |
assertEquals(i, l.get(i)); |
679 |
|
} |
680 |
|
} |
681 |
|
|
682 |
|
/** |
683 |
< |
* drainTo empties full queue, unblocking a waiting put. |
683 |
> |
* drainTo(c) empties full queue, unblocking a waiting put. |
684 |
|
*/ |
685 |
|
public void testDrainToWithActivePut() throws InterruptedException { |
686 |
|
final LinkedTransferQueue q = populatedQueue(SIZE); |
687 |
< |
Thread t = new Thread(new Runnable() { |
688 |
< |
public void run() { |
689 |
< |
try { |
777 |
< |
q.put(SIZE + 1); |
778 |
< |
} catch (Throwable ex) { |
779 |
< |
threadUnexpectedException(ex); |
780 |
< |
} |
687 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
688 |
> |
public void realRun() { |
689 |
> |
q.put(SIZE + 1); |
690 |
|
}}); |
782 |
– |
t.start(); |
691 |
|
ArrayList l = new ArrayList(); |
692 |
|
q.drainTo(l); |
693 |
|
assertTrue(l.size() >= SIZE); |
694 |
< |
for (int i = 0; i < SIZE; ++i) { |
695 |
< |
assertEquals(l.get(i), i); |
696 |
< |
} |
789 |
< |
t.join(); |
694 |
> |
for (int i = 0; i < SIZE; ++i) |
695 |
> |
assertEquals(i, l.get(i)); |
696 |
> |
awaitTermination(t); |
697 |
|
assertTrue(q.size() + l.size() >= SIZE); |
698 |
|
} |
699 |
|
|
700 |
|
/** |
701 |
< |
* drainTo(null, n) throws NullPointerException |
795 |
< |
*/ |
796 |
< |
public void testDrainToNullN() { |
797 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
798 |
< |
try { |
799 |
< |
q.drainTo(null, 0); |
800 |
< |
shouldThrow(); |
801 |
< |
} catch (NullPointerException success) { |
802 |
< |
} |
803 |
< |
} |
804 |
< |
|
805 |
< |
/** |
806 |
< |
* drainTo(this, n) throws IllegalArgumentException |
807 |
< |
*/ |
808 |
< |
public void testDrainToSelfN() { |
809 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
810 |
< |
try { |
811 |
< |
q.drainTo(q, 0); |
812 |
< |
shouldThrow(); |
813 |
< |
} catch (IllegalArgumentException success) { |
814 |
< |
} |
815 |
< |
} |
816 |
< |
|
817 |
< |
/** |
818 |
< |
* drainTo(c, n) empties first max {n, size} elements of queue into c |
701 |
> |
* drainTo(c, n) empties first min(n, size) elements of queue into c |
702 |
|
*/ |
703 |
|
public void testDrainToN() { |
704 |
|
LinkedTransferQueue q = new LinkedTransferQueue(); |
709 |
|
ArrayList l = new ArrayList(); |
710 |
|
q.drainTo(l, i); |
711 |
|
int k = (i < SIZE) ? i : SIZE; |
712 |
< |
assertEquals(l.size(), k); |
713 |
< |
assertEquals(q.size(), SIZE - k); |
714 |
< |
for (int j = 0; j < k; ++j) { |
715 |
< |
assertEquals(l.get(j), j); |
716 |
< |
} |
834 |
< |
while (q.poll() != null) |
835 |
< |
; |
712 |
> |
assertEquals(k, l.size()); |
713 |
> |
assertEquals(SIZE - k, q.size()); |
714 |
> |
for (int j = 0; j < k; ++j) |
715 |
> |
assertEquals(j, l.get(j)); |
716 |
> |
do {} while (q.poll() != null); |
717 |
|
} |
718 |
|
} |
719 |
|
|
720 |
|
/** |
721 |
< |
* poll and take should decrement the waiting consumer count |
721 |
> |
* timed poll() or take() increments the waiting consumer count; |
722 |
> |
* offer(e) decrements the waiting consumer count |
723 |
|
*/ |
724 |
|
public void testWaitingConsumer() throws InterruptedException { |
725 |
|
final LinkedTransferQueue q = new LinkedTransferQueue(); |
726 |
< |
final ConsumerObserver waiting = new ConsumerObserver(); |
727 |
< |
new Thread(new Runnable() { |
728 |
< |
public void run() { |
729 |
< |
try { |
730 |
< |
threadAssertTrue(q.hasWaitingConsumer()); |
731 |
< |
waiting.setWaitingConsumer(q.getWaitingConsumerCount()); |
732 |
< |
threadAssertTrue(q.offer(new Object())); |
733 |
< |
} catch (Throwable ex) { |
734 |
< |
threadUnexpectedException(ex); |
735 |
< |
} |
736 |
< |
}}).start(); |
737 |
< |
assertTrue(q.poll(LONG_DELAY_MS, TimeUnit.MILLISECONDS) != null); |
738 |
< |
assertTrue(q.getWaitingConsumerCount() < waiting.getWaitingConsumers()); |
726 |
> |
assertEquals(0, q.getWaitingConsumerCount()); |
727 |
> |
assertFalse(q.hasWaitingConsumer()); |
728 |
> |
final CountDownLatch threadStarted = new CountDownLatch(1); |
729 |
> |
|
730 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
731 |
> |
public void realRun() throws InterruptedException { |
732 |
> |
threadStarted.countDown(); |
733 |
> |
long startTime = System.nanoTime(); |
734 |
> |
assertSame(one, q.poll(LONG_DELAY_MS, MILLISECONDS)); |
735 |
> |
assertEquals(0, q.getWaitingConsumerCount()); |
736 |
> |
assertFalse(q.hasWaitingConsumer()); |
737 |
> |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
738 |
> |
}}); |
739 |
> |
|
740 |
> |
threadStarted.await(); |
741 |
> |
Callable<Boolean> oneConsumer |
742 |
> |
= new Callable<Boolean>() { public Boolean call() { |
743 |
> |
return q.hasWaitingConsumer() |
744 |
> |
&& q.getWaitingConsumerCount() == 1; }}; |
745 |
> |
waitForThreadToEnterWaitState(t, oneConsumer); |
746 |
> |
|
747 |
> |
assertTrue(q.offer(one)); |
748 |
> |
assertEquals(0, q.getWaitingConsumerCount()); |
749 |
> |
assertFalse(q.hasWaitingConsumer()); |
750 |
> |
|
751 |
> |
awaitTermination(t); |
752 |
|
} |
753 |
|
|
754 |
|
/** |
759 |
|
LinkedTransferQueue q = new LinkedTransferQueue(); |
760 |
|
q.transfer(null); |
761 |
|
shouldThrow(); |
762 |
< |
} catch (NullPointerException ex) { |
868 |
< |
} |
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 the associated poll. |
768 |
|
*/ |
769 |
|
public void testTransfer2() throws InterruptedException { |
770 |
< |
final LinkedTransferQueue<Integer> q = new LinkedTransferQueue<Integer>(); |
770 |
> |
final LinkedTransferQueue<Integer> q = new LinkedTransferQueue<>(); |
771 |
> |
final CountDownLatch threadStarted = new CountDownLatch(1); |
772 |
|
|
773 |
< |
new Thread(new Runnable() { |
774 |
< |
public void run() { |
775 |
< |
try { |
776 |
< |
q.transfer(SIZE); |
777 |
< |
threadAssertTrue(q.isEmpty()); |
778 |
< |
} catch (Throwable ex) { |
884 |
< |
threadUnexpectedException(ex); |
885 |
< |
} |
886 |
< |
}}).start(); |
773 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
774 |
> |
public void realRun() throws InterruptedException { |
775 |
> |
threadStarted.countDown(); |
776 |
> |
q.transfer(five); |
777 |
> |
checkEmpty(q); |
778 |
> |
}}); |
779 |
|
|
780 |
< |
Thread.sleep(SHORT_DELAY_MS); |
781 |
< |
assertEquals(1, q.size()); |
782 |
< |
assertEquals(SIZE, (int) q.poll()); |
783 |
< |
assertTrue(q.isEmpty()); |
780 |
> |
threadStarted.await(); |
781 |
> |
Callable<Boolean> oneElement |
782 |
> |
= new Callable<Boolean>() { public Boolean call() { |
783 |
> |
return !q.isEmpty() && q.size() == 1; }}; |
784 |
> |
waitForThreadToEnterWaitState(t, oneElement); |
785 |
> |
|
786 |
> |
assertSame(five, q.poll()); |
787 |
> |
checkEmpty(q); |
788 |
> |
awaitTermination(t); |
789 |
|
} |
790 |
|
|
791 |
|
/** |
792 |
< |
* transfer will attempt to transfer in fifo order and continue |
896 |
< |
* waiting if the element being transfered is not polled or taken |
792 |
> |
* transfer waits until a poll occurs, and then transfers in fifo order |
793 |
|
*/ |
794 |
|
public void testTransfer3() throws InterruptedException { |
795 |
< |
final LinkedTransferQueue<Integer> q = new LinkedTransferQueue<Integer>(); |
795 |
> |
final LinkedTransferQueue<Integer> q = new LinkedTransferQueue<>(); |
796 |
|
|
797 |
< |
Thread first = |
798 |
< |
new Thread(new Runnable() { |
799 |
< |
public void run() { |
800 |
< |
try { |
801 |
< |
Integer i = SIZE + 1; |
802 |
< |
q.transfer(i); |
907 |
< |
threadAssertTrue(!q.contains(i)); |
908 |
< |
threadAssertEquals(1, q.size()); |
909 |
< |
} catch (Throwable ex) { |
910 |
< |
threadUnexpectedException(ex); |
911 |
< |
} |
912 |
< |
}}); |
913 |
< |
first.start(); |
797 |
> |
Thread first = newStartedThread(new CheckedRunnable() { |
798 |
> |
public void realRun() throws InterruptedException { |
799 |
> |
q.transfer(four); |
800 |
> |
assertFalse(q.contains(four)); |
801 |
> |
assertEquals(1, q.size()); |
802 |
> |
}}); |
803 |
|
|
804 |
< |
Thread interruptedThread = |
805 |
< |
new Thread(new Runnable() { |
806 |
< |
public void run() { |
807 |
< |
try { |
808 |
< |
while (q.size() == 0) |
809 |
< |
Thread.yield(); |
921 |
< |
q.transfer(SIZE); |
922 |
< |
threadShouldThrow(); |
923 |
< |
} catch (InterruptedException success) { |
924 |
< |
} catch (Throwable ex) { |
925 |
< |
threadUnexpectedException(ex); |
926 |
< |
} |
804 |
> |
Thread interruptedThread = newStartedThread( |
805 |
> |
new CheckedInterruptedRunnable() { |
806 |
> |
public void realRun() throws InterruptedException { |
807 |
> |
while (q.isEmpty()) |
808 |
> |
Thread.yield(); |
809 |
> |
q.transfer(five); |
810 |
|
}}); |
928 |
– |
interruptedThread.start(); |
811 |
|
|
812 |
|
while (q.size() < 2) |
813 |
|
Thread.yield(); |
814 |
|
assertEquals(2, q.size()); |
815 |
< |
assertEquals(SIZE + 1, (int) q.poll()); |
815 |
> |
assertSame(four, q.poll()); |
816 |
|
first.join(); |
817 |
|
assertEquals(1, q.size()); |
818 |
|
interruptedThread.interrupt(); |
819 |
|
interruptedThread.join(); |
820 |
< |
assertEquals(0, q.size()); |
939 |
< |
assertTrue(q.isEmpty()); |
820 |
> |
checkEmpty(q); |
821 |
|
} |
822 |
|
|
823 |
|
/** |
824 |
< |
* transfer will wait as long as a poll or take occurs if one does occur |
825 |
< |
* the waiting is finished and the thread that tries to poll/take |
945 |
< |
* wins in retrieving the element |
824 |
> |
* transfer waits until a poll occurs, at which point the polling |
825 |
> |
* thread returns the element |
826 |
|
*/ |
827 |
|
public void testTransfer4() throws InterruptedException { |
828 |
|
final LinkedTransferQueue q = new LinkedTransferQueue(); |
829 |
< |
new Thread(new Runnable() { |
830 |
< |
public void run() { |
831 |
< |
try { |
832 |
< |
q.transfer(four); |
833 |
< |
threadAssertFalse(q.contains(four)); |
834 |
< |
threadAssertEquals(three, q.poll()); |
835 |
< |
} catch (Throwable ex) { |
836 |
< |
threadUnexpectedException(ex); |
837 |
< |
} |
838 |
< |
}}).start(); |
839 |
< |
Thread.sleep(MEDIUM_DELAY_MS); |
829 |
> |
|
830 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
831 |
> |
public void realRun() throws InterruptedException { |
832 |
> |
q.transfer(four); |
833 |
> |
assertFalse(q.contains(four)); |
834 |
> |
assertSame(three, q.poll()); |
835 |
> |
}}); |
836 |
> |
|
837 |
> |
while (q.isEmpty()) |
838 |
> |
Thread.yield(); |
839 |
> |
assertFalse(q.isEmpty()); |
840 |
> |
assertEquals(1, q.size()); |
841 |
|
assertTrue(q.offer(three)); |
842 |
< |
assertEquals(four, q.poll()); |
842 |
> |
assertSame(four, q.poll()); |
843 |
> |
awaitTermination(t); |
844 |
> |
} |
845 |
> |
|
846 |
> |
/** |
847 |
> |
* transfer waits until a take occurs. The transfered element |
848 |
> |
* is returned by the associated take. |
849 |
> |
*/ |
850 |
> |
public void testTransfer5() throws InterruptedException { |
851 |
> |
final LinkedTransferQueue<Integer> q = new LinkedTransferQueue<>(); |
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); |
866 |
|
} |
867 |
|
|
868 |
|
/** |
869 |
|
* tryTransfer(null) throws NullPointerException |
870 |
|
*/ |
871 |
|
public void testTryTransfer1() { |
872 |
+ |
final LinkedTransferQueue q = new LinkedTransferQueue(); |
873 |
|
try { |
969 |
– |
final LinkedTransferQueue q = new LinkedTransferQueue(); |
874 |
|
q.tryTransfer(null); |
875 |
< |
this.shouldThrow(); |
876 |
< |
} catch (NullPointerException ex) { |
973 |
< |
} |
875 |
> |
shouldThrow(); |
876 |
> |
} catch (NullPointerException success) {} |
877 |
|
} |
878 |
|
|
879 |
|
/** |
880 |
|
* tryTransfer returns false and does not enqueue if there are no |
881 |
|
* consumers waiting to poll or take. |
882 |
|
*/ |
883 |
< |
public void testTryTransfer2() { |
883 |
> |
public void testTryTransfer2() throws InterruptedException { |
884 |
|
final LinkedTransferQueue q = new LinkedTransferQueue(); |
885 |
|
assertFalse(q.tryTransfer(new Object())); |
886 |
|
assertFalse(q.hasWaitingConsumer()); |
887 |
< |
assertTrue(q.isEmpty()); |
985 |
< |
assertEquals(0, q.size()); |
887 |
> |
checkEmpty(q); |
888 |
|
} |
889 |
|
|
890 |
|
/** |
894 |
|
public void testTryTransfer3() throws InterruptedException { |
895 |
|
final Object hotPotato = new Object(); |
896 |
|
final LinkedTransferQueue q = new LinkedTransferQueue(); |
897 |
< |
new Thread(new Runnable() { |
898 |
< |
public void run() { |
899 |
< |
try { |
900 |
< |
while (! q.hasWaitingConsumer()) |
901 |
< |
Thread.yield(); |
902 |
< |
threadAssertTrue(q.hasWaitingConsumer()); |
903 |
< |
threadAssertTrue(q.isEmpty()); |
904 |
< |
threadAssertTrue(q.size() == 0); |
905 |
< |
threadAssertTrue(q.tryTransfer(hotPotato)); |
906 |
< |
} catch (Throwable ex) { |
907 |
< |
threadUnexpectedException(ex); |
908 |
< |
} |
909 |
< |
}}).start(); |
910 |
< |
assertTrue(q.poll(LONG_DELAY_MS, TimeUnit.MILLISECONDS) == hotPotato); |
911 |
< |
assertTrue(q.isEmpty()); |
897 |
> |
|
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 |
> |
long startTime = System.nanoTime(); |
908 |
> |
assertSame(hotPotato, q.poll(LONG_DELAY_MS, MILLISECONDS)); |
909 |
> |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
910 |
> |
checkEmpty(q); |
911 |
> |
awaitTermination(t); |
912 |
|
} |
913 |
|
|
914 |
|
/** |
918 |
|
public void testTryTransfer4() throws InterruptedException { |
919 |
|
final Object hotPotato = new Object(); |
920 |
|
final LinkedTransferQueue q = new LinkedTransferQueue(); |
921 |
< |
new Thread(new Runnable() { |
922 |
< |
public void run() { |
923 |
< |
try { |
924 |
< |
while (! q.hasWaitingConsumer()) |
925 |
< |
Thread.yield(); |
926 |
< |
threadAssertTrue(q.hasWaitingConsumer()); |
927 |
< |
threadAssertTrue(q.isEmpty()); |
928 |
< |
threadAssertTrue(q.size() == 0); |
929 |
< |
threadAssertTrue(q.tryTransfer(hotPotato)); |
930 |
< |
} catch (Throwable ex) { |
931 |
< |
threadUnexpectedException(ex); |
932 |
< |
} |
933 |
< |
}}).start(); |
1032 |
< |
assertTrue(q.take() == hotPotato); |
1033 |
< |
assertTrue(q.isEmpty()); |
921 |
> |
|
922 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
923 |
> |
public void realRun() { |
924 |
> |
while (! q.hasWaitingConsumer()) |
925 |
> |
Thread.yield(); |
926 |
> |
assertTrue(q.hasWaitingConsumer()); |
927 |
> |
checkEmpty(q); |
928 |
> |
assertTrue(q.tryTransfer(hotPotato)); |
929 |
> |
}}); |
930 |
> |
|
931 |
> |
assertSame(q.take(), hotPotato); |
932 |
> |
checkEmpty(q); |
933 |
> |
awaitTermination(t); |
934 |
|
} |
935 |
|
|
936 |
|
/** |
937 |
< |
* tryTransfer waits the amount given if interrupted, show an |
1038 |
< |
* interrupted exception |
937 |
> |
* tryTransfer blocks interruptibly if no takers |
938 |
|
*/ |
939 |
|
public void testTryTransfer5() throws InterruptedException { |
940 |
|
final LinkedTransferQueue q = new LinkedTransferQueue(); |
941 |
< |
Thread toInterrupt = new Thread(new Runnable() { |
942 |
< |
public void run() { |
941 |
> |
final CountDownLatch pleaseInterrupt = new CountDownLatch(1); |
942 |
> |
assertTrue(q.isEmpty()); |
943 |
> |
|
944 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
945 |
> |
public void realRun() throws InterruptedException { |
946 |
> |
long startTime = System.nanoTime(); |
947 |
> |
Thread.currentThread().interrupt(); |
948 |
|
try { |
949 |
< |
q.tryTransfer(new Object(), LONG_DELAY_MS, TimeUnit.MILLISECONDS); |
950 |
< |
threadShouldThrow(); |
951 |
< |
} catch (InterruptedException success) { |
952 |
< |
} catch (Throwable ex) { |
953 |
< |
threadUnexpectedException(ex); |
954 |
< |
} |
949 |
> |
q.tryTransfer(new Object(), LONG_DELAY_MS, MILLISECONDS); |
950 |
> |
shouldThrow(); |
951 |
> |
} catch (InterruptedException success) {} |
952 |
> |
assertFalse(Thread.interrupted()); |
953 |
> |
|
954 |
> |
pleaseInterrupt.countDown(); |
955 |
> |
try { |
956 |
> |
q.tryTransfer(new Object(), LONG_DELAY_MS, MILLISECONDS); |
957 |
> |
shouldThrow(); |
958 |
> |
} catch (InterruptedException success) {} |
959 |
> |
assertFalse(Thread.interrupted()); |
960 |
> |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
961 |
|
}}); |
962 |
< |
toInterrupt.start(); |
963 |
< |
Thread.sleep(SMALL_DELAY_MS); |
964 |
< |
toInterrupt.interrupt(); |
962 |
> |
|
963 |
> |
await(pleaseInterrupt); |
964 |
> |
assertThreadStaysAlive(t); |
965 |
> |
t.interrupt(); |
966 |
> |
awaitTermination(t); |
967 |
> |
checkEmpty(q); |
968 |
|
} |
969 |
|
|
970 |
|
/** |
971 |
< |
* tryTransfer gives up after the timeout and return false |
971 |
> |
* tryTransfer gives up after the timeout and returns false |
972 |
|
*/ |
973 |
|
public void testTryTransfer6() throws InterruptedException { |
974 |
|
final LinkedTransferQueue q = new LinkedTransferQueue(); |
975 |
< |
new Thread(new Runnable() { |
976 |
< |
public void run() { |
977 |
< |
try { |
978 |
< |
threadAssertFalse(q.tryTransfer(new Object(), SHORT_DELAY_MS, TimeUnit.MILLISECONDS)); |
979 |
< |
} catch (Throwable ex) { |
980 |
< |
threadUnexpectedException(ex); |
981 |
< |
} |
982 |
< |
}}).start(); |
983 |
< |
Thread.sleep(LONG_DELAY_MS); |
984 |
< |
assertTrue(q.isEmpty()); |
975 |
> |
|
976 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
977 |
> |
public void realRun() throws InterruptedException { |
978 |
> |
long startTime = System.nanoTime(); |
979 |
> |
assertFalse(q.tryTransfer(new Object(), |
980 |
> |
timeoutMillis(), MILLISECONDS)); |
981 |
> |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
982 |
> |
checkEmpty(q); |
983 |
> |
}}); |
984 |
> |
|
985 |
> |
awaitTermination(t); |
986 |
> |
checkEmpty(q); |
987 |
|
} |
988 |
|
|
989 |
|
/** |
993 |
|
public void testTryTransfer7() throws InterruptedException { |
994 |
|
final LinkedTransferQueue q = new LinkedTransferQueue(); |
995 |
|
assertTrue(q.offer(four)); |
996 |
< |
new Thread(new Runnable() { |
997 |
< |
public void run() { |
998 |
< |
try { |
999 |
< |
threadAssertTrue(q.tryTransfer(five, LONG_DELAY_MS, TimeUnit.MILLISECONDS)); |
1000 |
< |
threadAssertTrue(q.isEmpty()); |
1001 |
< |
} catch (Throwable ex) { |
1002 |
< |
threadUnexpectedException(ex); |
1003 |
< |
} |
1004 |
< |
}}).start(); |
1005 |
< |
Thread.sleep(SHORT_DELAY_MS); |
996 |
> |
|
997 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
998 |
> |
public void realRun() throws InterruptedException { |
999 |
> |
long startTime = System.nanoTime(); |
1000 |
> |
assertTrue(q.tryTransfer(five, LONG_DELAY_MS, MILLISECONDS)); |
1001 |
> |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
1002 |
> |
checkEmpty(q); |
1003 |
> |
}}); |
1004 |
> |
|
1005 |
> |
while (q.size() != 2) |
1006 |
> |
Thread.yield(); |
1007 |
|
assertEquals(2, q.size()); |
1008 |
< |
assertEquals(four, q.poll()); |
1009 |
< |
assertEquals(five, q.poll()); |
1010 |
< |
assertTrue(q.isEmpty()); |
1008 |
> |
assertSame(four, q.poll()); |
1009 |
> |
assertSame(five, q.poll()); |
1010 |
> |
checkEmpty(q); |
1011 |
> |
awaitTermination(t); |
1012 |
|
} |
1013 |
|
|
1014 |
|
/** |
1015 |
< |
* tryTransfer attempts to enqueue into the q and fails returning |
1016 |
< |
* false not enqueueing and the successive poll is null |
1015 |
> |
* tryTransfer attempts to enqueue into the queue and fails |
1016 |
> |
* returning false not enqueueing and the successive poll is null |
1017 |
|
*/ |
1018 |
|
public void testTryTransfer8() throws InterruptedException { |
1019 |
|
final LinkedTransferQueue q = new LinkedTransferQueue(); |
1020 |
|
assertTrue(q.offer(four)); |
1021 |
|
assertEquals(1, q.size()); |
1022 |
< |
assertFalse(q.tryTransfer(five, SHORT_DELAY_MS, TimeUnit.MILLISECONDS)); |
1022 |
> |
long startTime = System.nanoTime(); |
1023 |
> |
assertFalse(q.tryTransfer(five, timeoutMillis(), MILLISECONDS)); |
1024 |
> |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
1025 |
|
assertEquals(1, q.size()); |
1026 |
< |
assertEquals(four, q.poll()); |
1108 |
< |
threadAssertTrue(q.isEmpty()); |
1026 |
> |
assertSame(four, q.poll()); |
1027 |
|
assertNull(q.poll()); |
1028 |
+ |
checkEmpty(q); |
1029 |
|
} |
1030 |
|
|
1031 |
|
private LinkedTransferQueue<Integer> populatedQueue(int n) { |
1032 |
< |
LinkedTransferQueue<Integer> q = new LinkedTransferQueue<Integer>(); |
1033 |
< |
assertTrue(q.isEmpty()); |
1032 |
> |
LinkedTransferQueue<Integer> q = new LinkedTransferQueue<>(); |
1033 |
> |
checkEmpty(q); |
1034 |
|
for (int i = 0; i < n; i++) { |
1035 |
|
assertEquals(i, q.size()); |
1036 |
|
assertTrue(q.offer(i)); |
1040 |
|
return q; |
1041 |
|
} |
1042 |
|
|
1043 |
< |
private static class ConsumerObserver { |
1044 |
< |
|
1045 |
< |
private int waitingConsumers; |
1046 |
< |
|
1047 |
< |
private ConsumerObserver() { |
1048 |
< |
} |
1049 |
< |
|
1050 |
< |
private void setWaitingConsumer(int i) { |
1051 |
< |
this.waitingConsumers = i; |
1052 |
< |
} |
1053 |
< |
|
1054 |
< |
private int getWaitingConsumers() { |
1136 |
< |
return waitingConsumers; |
1043 |
> |
/** |
1044 |
> |
* remove(null), contains(null) always return false |
1045 |
> |
*/ |
1046 |
> |
public void testNeverContainsNull() { |
1047 |
> |
Collection<?>[] qs = { |
1048 |
> |
new LinkedTransferQueue<Object>(), |
1049 |
> |
populatedQueue(2), |
1050 |
> |
}; |
1051 |
> |
|
1052 |
> |
for (Collection<?> q : qs) { |
1053 |
> |
assertFalse(q.contains(null)); |
1054 |
> |
assertFalse(q.remove(null)); |
1055 |
|
} |
1056 |
|
} |
1057 |
|
} |