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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; |
13 |
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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.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 static java.util.concurrent.TimeUnit.MILLISECONDS; |
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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; |
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import java.util.concurrent.Executors; |
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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; |
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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()); |
35 |
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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); |
40 |
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} |
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|
42 |
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void checkEmpty(LinkedTransferQueue q) throws InterruptedException { |
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assertTrue(q.isEmpty()); |
44 |
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assertEquals(0, q.size()); |
45 |
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assertNull(q.peek()); |
46 |
< |
assertNull(q.poll()); |
47 |
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assertNull(q.poll(0, MILLISECONDS)); |
48 |
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assertEquals(q.toString(), "[]"); |
42 |
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assertTrue(Arrays.equals(q.toArray(), new Object[0])); |
43 |
< |
assertFalse(q.iterator().hasNext()); |
44 |
< |
try { |
45 |
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q.element(); |
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shouldThrow(); |
47 |
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} catch (NoSuchElementException success) { |
48 |
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} |
49 |
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try { |
50 |
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q.iterator().next(); |
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shouldThrow(); |
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} catch (NoSuchElementException success) { |
53 |
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} |
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try { |
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q.remove(); |
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shouldThrow(); |
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} catch (NoSuchElementException success) { |
58 |
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} |
39 |
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class Implementation implements CollectionImplementation { |
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public Class<?> klazz() { return LinkedTransferQueue.class; } |
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public Collection emptyCollection() { return new LinkedTransferQueue(); } |
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public Object makeElement(int i) { return i; } |
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public boolean isConcurrent() { return true; } |
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public boolean permitsNulls() { return false; } |
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} |
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return newTestSuite(LinkedTransferQueueTest.class, |
47 |
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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) { |
79 |
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} |
68 |
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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) { |
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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 { |
93 |
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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) { |
108 |
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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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* 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 |
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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 |
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assertEquals(i, q.remove()); |
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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); |
149 |
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} |
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} |
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|
152 |
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/** |
153 |
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* offer(null) throws NullPointerException |
154 |
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*/ |
155 |
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public void testOfferNull() { |
156 |
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try { |
157 |
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LinkedTransferQueue q = new LinkedTransferQueue(); |
158 |
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q.offer(null); |
159 |
< |
shouldThrow(); |
160 |
< |
} catch (NullPointerException success) { |
161 |
< |
} |
162 |
< |
} |
163 |
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|
164 |
< |
/** |
165 |
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* add(null) throws NullPointerException |
166 |
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*/ |
167 |
< |
public void testAddNull() { |
168 |
< |
try { |
169 |
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LinkedTransferQueue q = new LinkedTransferQueue(); |
170 |
< |
q.add(null); |
171 |
< |
shouldThrow(); |
172 |
< |
} catch (NullPointerException success) { |
173 |
< |
} |
174 |
< |
} |
175 |
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|
176 |
< |
/** |
177 |
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* addAll(null) throws NullPointerException |
178 |
< |
*/ |
179 |
< |
public void testAddAll1() { |
180 |
< |
try { |
181 |
< |
LinkedTransferQueue q = new LinkedTransferQueue(); |
182 |
< |
q.addAll(null); |
183 |
< |
shouldThrow(); |
184 |
< |
} 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 |
|
*/ |
142 |
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public void testAddAllSelf() { |
143 |
+ |
LinkedTransferQueue q = populatedQueue(SIZE); |
144 |
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try { |
193 |
– |
LinkedTransferQueue q = populatedQueue(SIZE); |
145 |
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q.addAll(q); |
146 |
|
shouldThrow(); |
147 |
< |
} catch (IllegalArgumentException success) { |
197 |
< |
} |
198 |
< |
} |
199 |
< |
|
200 |
< |
/** |
201 |
< |
* addAll of a collection with null elements throws NullPointerException |
202 |
< |
*/ |
203 |
< |
public void testAddAll2() { |
204 |
< |
try { |
205 |
< |
LinkedTransferQueue q = new LinkedTransferQueue(); |
206 |
< |
Integer[] ints = new Integer[SIZE]; |
207 |
< |
q.addAll(Arrays.asList(ints)); |
208 |
< |
shouldThrow(); |
209 |
< |
} catch (NullPointerException success) { |
210 |
< |
} |
147 |
> |
} catch (IllegalArgumentException success) {} |
148 |
|
} |
149 |
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|
150 |
|
/** |
152 |
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* NullPointerException after possibly adding some elements |
153 |
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*/ |
154 |
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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 { |
219 |
– |
LinkedTransferQueue q = new LinkedTransferQueue(); |
220 |
– |
Integer[] ints = new Integer[SIZE]; |
221 |
– |
for (int i = 0; i < SIZE - 1; ++i) { |
222 |
– |
ints[i] = i; |
223 |
– |
} |
160 |
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q.addAll(Arrays.asList(ints)); |
161 |
|
shouldThrow(); |
162 |
< |
} catch (NullPointerException success) { |
227 |
< |
} |
162 |
> |
} catch (NullPointerException success) {} |
163 |
|
} |
164 |
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|
165 |
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/** |
180 |
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} |
181 |
|
|
182 |
|
/** |
248 |
– |
* put(null) throws NullPointerException |
249 |
– |
*/ |
250 |
– |
public void testPutNull() throws InterruptedException { |
251 |
– |
try { |
252 |
– |
LinkedTransferQueue q = new LinkedTransferQueue(); |
253 |
– |
q.put(null); |
254 |
– |
shouldThrow(); |
255 |
– |
} catch (NullPointerException success) {} |
256 |
– |
} |
257 |
– |
|
258 |
– |
/** |
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(q.size(), i); |
188 |
> |
assertEquals(i, q.size()); |
189 |
|
q.put(i); |
190 |
|
assertTrue(q.contains(i)); |
191 |
|
} |
202 |
|
} |
203 |
|
|
204 |
|
/** |
205 |
< |
* take blocks interruptibly when empty |
282 |
< |
*/ |
283 |
< |
public void testTakeFromEmpty() throws InterruptedException { |
284 |
< |
final LinkedTransferQueue q = new LinkedTransferQueue(); |
285 |
< |
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
286 |
< |
void realRun() throws InterruptedException { |
287 |
< |
q.take(); |
288 |
< |
}}); |
289 |
< |
Thread.sleep(SHORT_DELAY_MS); |
290 |
< |
t.interrupt(); |
291 |
< |
t.join(); |
292 |
< |
} |
293 |
< |
|
294 |
< |
/** |
295 |
< |
* 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 |
< |
final LinkedTransferQueue<Integer> q = populatedQueue(SIZE); |
209 |
< |
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
210 |
< |
void realRun() throws InterruptedException { |
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 |
< |
Thread.sleep(SMALL_DELAY_MS); |
228 |
> |
|
229 |
> |
await(pleaseInterrupt); |
230 |
> |
assertThreadBlocks(t, Thread.State.WAITING); |
231 |
|
t.interrupt(); |
232 |
< |
t.join(); |
309 |
< |
checkEmpty(q); |
232 |
> |
awaitTermination(t); |
233 |
|
} |
234 |
|
|
235 |
|
/** |
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); |
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 |
< |
long t0 = System.nanoTime(); |
264 |
> |
long startTime = System.nanoTime(); |
265 |
> |
for (int i = 0; i < SIZE; ++i) |
266 |
|
assertEquals(i, (int) q.poll(LONG_DELAY_MS, MILLISECONDS)); |
267 |
< |
long millisElapsed = (System.nanoTime() - t0)/(1024 * 1024); |
268 |
< |
assertTrue(millisElapsed < SMALL_DELAY_MS); |
269 |
< |
} |
270 |
< |
assertNull(q.poll(SHORT_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 |
|
|
277 |
|
* returning timeout status |
278 |
|
*/ |
279 |
|
public void testInterruptedTimedPoll() throws InterruptedException { |
280 |
< |
final LinkedTransferQueue<Integer> q = populatedQueue(SIZE); |
280 |
> |
final BlockingQueue<Integer> q = populatedQueue(SIZE); |
281 |
> |
final CountDownLatch pleaseInterrupt = new CountDownLatch(1); |
282 |
|
Thread t = newStartedThread(new CheckedRunnable() { |
283 |
< |
void realRun() throws InterruptedException { |
284 |
< |
for (int i = 0; i < SIZE; ++i) { |
285 |
< |
long t0 = System.nanoTime(); |
286 |
< |
threadAssertEquals(i, (int) q.poll(LONG_DELAY_MS, |
287 |
< |
MILLISECONDS)); |
288 |
< |
long millisElapsed = (System.nanoTime() - t0)/(1024 * 1024); |
364 |
< |
assertTrue(millisElapsed < SMALL_DELAY_MS); |
365 |
< |
} |
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 |
> |
pleaseInterrupt.countDown(); |
289 |
|
try { |
290 |
|
q.poll(LONG_DELAY_MS, MILLISECONDS); |
291 |
+ |
shouldThrow(); |
292 |
|
} catch (InterruptedException success) {} |
293 |
+ |
assertFalse(Thread.interrupted()); |
294 |
+ |
|
295 |
+ |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
296 |
|
}}); |
297 |
< |
Thread.sleep(SMALL_DELAY_MS); |
297 |
> |
|
298 |
> |
await(pleaseInterrupt); |
299 |
> |
assertThreadBlocks(t, Thread.State.TIMED_WAITING); |
300 |
|
t.interrupt(); |
301 |
< |
t.join(); |
301 |
> |
awaitTermination(t); |
302 |
|
checkEmpty(q); |
303 |
|
} |
304 |
|
|
305 |
|
/** |
306 |
< |
* timed poll before a delayed offer fails; after offer succeeds; |
307 |
< |
* on interruption throws |
306 |
> |
* timed poll after thread interrupted throws InterruptedException |
307 |
> |
* instead of returning timeout status |
308 |
|
*/ |
309 |
< |
public void testTimedPollWithOffer() throws InterruptedException { |
310 |
< |
final LinkedTransferQueue q = new LinkedTransferQueue(); |
311 |
< |
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
312 |
< |
void realRun() throws InterruptedException { |
313 |
< |
threadAssertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS)); |
314 |
< |
q.poll(LONG_DELAY_MS, MILLISECONDS); |
315 |
< |
q.poll(LONG_DELAY_MS, MILLISECONDS); |
309 |
> |
public void testTimedPollAfterInterrupt() throws InterruptedException { |
310 |
> |
final BlockingQueue<Integer> q = populatedQueue(SIZE); |
311 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
312 |
> |
public void realRun() throws InterruptedException { |
313 |
> |
long startTime = System.nanoTime(); |
314 |
> |
Thread.currentThread().interrupt(); |
315 |
> |
for (int i = 0; i < SIZE; ++i) |
316 |
> |
assertEquals(i, (int) q.poll(LONG_DELAY_MS, MILLISECONDS)); |
317 |
> |
try { |
318 |
> |
q.poll(LONG_DELAY_MS, MILLISECONDS); |
319 |
> |
shouldThrow(); |
320 |
> |
} catch (InterruptedException success) {} |
321 |
> |
assertFalse(Thread.interrupted()); |
322 |
> |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
323 |
|
}}); |
324 |
< |
Thread.sleep(SMALL_DELAY_MS); |
325 |
< |
assertTrue(q.offer(zero, SHORT_DELAY_MS, MILLISECONDS)); |
326 |
< |
t.interrupt(); |
391 |
< |
t.join(); |
324 |
> |
|
325 |
> |
awaitTermination(t); |
326 |
> |
checkEmpty(q); |
327 |
|
} |
328 |
|
|
329 |
|
/** |
353 |
|
try { |
354 |
|
q.element(); |
355 |
|
shouldThrow(); |
356 |
< |
} catch (NoSuchElementException success) { |
422 |
< |
} |
356 |
> |
} catch (NoSuchElementException success) {} |
357 |
|
checkEmpty(q); |
358 |
|
} |
359 |
|
|
368 |
|
try { |
369 |
|
q.remove(); |
370 |
|
shouldThrow(); |
371 |
< |
} catch (NoSuchElementException success) { |
438 |
< |
} |
439 |
< |
checkEmpty(q); |
440 |
< |
} |
441 |
< |
|
442 |
< |
/** |
443 |
< |
* remove(x) removes x and returns true if present |
444 |
< |
*/ |
445 |
< |
public void testRemoveElement() throws InterruptedException { |
446 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
447 |
< |
for (int i = 1; i < SIZE; i += 2) { |
448 |
< |
assertTrue(q.remove(i)); |
449 |
< |
} |
450 |
< |
for (int i = 0; i < SIZE; i += 2) { |
451 |
< |
assertTrue(q.remove(i)); |
452 |
< |
assertFalse(q.remove(i + 1)); |
453 |
< |
} |
371 |
> |
} catch (NoSuchElementException success) {} |
372 |
|
checkEmpty(q); |
373 |
|
} |
374 |
|
|
382 |
|
assertTrue(q.remove(one)); |
383 |
|
assertTrue(q.remove(two)); |
384 |
|
assertTrue(q.add(three)); |
385 |
< |
assertTrue(q.take() == three); |
385 |
> |
assertSame(q.take(), three); |
386 |
|
} |
387 |
|
|
388 |
|
/** |
418 |
|
*/ |
419 |
|
public void testContainsAll() { |
420 |
|
LinkedTransferQueue<Integer> q = populatedQueue(SIZE); |
421 |
< |
LinkedTransferQueue<Integer> p = new LinkedTransferQueue<Integer>(); |
421 |
> |
LinkedTransferQueue<Integer> p = new LinkedTransferQueue<>(); |
422 |
|
for (int i = 0; i < SIZE; ++i) { |
423 |
|
assertTrue(q.containsAll(p)); |
424 |
|
assertFalse(p.containsAll(q)); |
464 |
|
} |
465 |
|
|
466 |
|
/** |
467 |
< |
* toArray() contains all elements |
467 |
> |
* toArray() contains all elements in FIFO order |
468 |
|
*/ |
469 |
< |
public void testToArray() throws InterruptedException { |
469 |
> |
public void testToArray() { |
470 |
|
LinkedTransferQueue q = populatedQueue(SIZE); |
471 |
|
Object[] o = q.toArray(); |
472 |
|
for (int i = 0; i < o.length; i++) { |
473 |
< |
assertEquals(o[i], q.take()); |
473 |
> |
assertSame(o[i], q.poll()); |
474 |
|
} |
475 |
|
} |
476 |
|
|
477 |
|
/** |
478 |
< |
* toArray(a) contains all elements |
478 |
> |
* toArray(a) contains all elements in FIFO order |
479 |
|
*/ |
480 |
< |
public void testToArray2() throws InterruptedException { |
480 |
> |
public void testToArray2() { |
481 |
|
LinkedTransferQueue<Integer> q = populatedQueue(SIZE); |
482 |
|
Integer[] ints = new Integer[SIZE]; |
483 |
< |
ints = q.toArray(ints); |
483 |
> |
Integer[] array = q.toArray(ints); |
484 |
> |
assertSame(ints, array); |
485 |
|
for (int i = 0; i < ints.length; i++) { |
486 |
< |
assertEquals(ints[i], q.take()); |
568 |
< |
} |
569 |
< |
} |
570 |
< |
|
571 |
< |
/** |
572 |
< |
* toArray(null) throws NullPointerException |
573 |
< |
*/ |
574 |
< |
public void testToArray_BadArg() { |
575 |
< |
try { |
576 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
577 |
< |
Object o[] = q.toArray(null); |
578 |
< |
shouldThrow(); |
579 |
< |
} catch (NullPointerException success) { |
486 |
> |
assertSame(ints[i], q.poll()); |
487 |
|
} |
488 |
|
} |
489 |
|
|
490 |
|
/** |
491 |
< |
* toArray(incompatible array type) throws CCE |
491 |
> |
* toArray(incompatible array type) throws ArrayStoreException |
492 |
|
*/ |
493 |
|
public void testToArray1_BadArg() { |
494 |
+ |
LinkedTransferQueue q = populatedQueue(SIZE); |
495 |
|
try { |
496 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
589 |
< |
Object o[] = q.toArray(new String[10]); |
496 |
> |
q.toArray(new String[10]); |
497 |
|
shouldThrow(); |
498 |
< |
} catch (ArrayStoreException success) { |
592 |
< |
} |
498 |
> |
} catch (ArrayStoreException success) {} |
499 |
|
} |
500 |
|
|
501 |
|
/** |
504 |
|
public void testIterator() throws InterruptedException { |
505 |
|
LinkedTransferQueue q = populatedQueue(SIZE); |
506 |
|
Iterator it = q.iterator(); |
507 |
< |
int i = 0; |
508 |
< |
while (it.hasNext()) { |
509 |
< |
assertEquals(it.next(), i++); |
510 |
< |
} |
507 |
> |
int i; |
508 |
> |
for (i = 0; it.hasNext(); i++) |
509 |
> |
assertTrue(q.contains(it.next())); |
510 |
> |
assertEquals(i, SIZE); |
511 |
> |
assertIteratorExhausted(it); |
512 |
> |
|
513 |
> |
it = q.iterator(); |
514 |
> |
for (i = 0; it.hasNext(); i++) |
515 |
> |
assertEquals(it.next(), q.take()); |
516 |
|
assertEquals(i, SIZE); |
517 |
+ |
assertIteratorExhausted(it); |
518 |
+ |
} |
519 |
+ |
|
520 |
+ |
/** |
521 |
+ |
* iterator of empty collection has no elements |
522 |
+ |
*/ |
523 |
+ |
public void testEmptyIterator() { |
524 |
+ |
assertIteratorExhausted(new LinkedTransferQueue().iterator()); |
525 |
|
} |
526 |
|
|
527 |
|
/** |
538 |
|
it.remove(); |
539 |
|
|
540 |
|
it = q.iterator(); |
541 |
< |
assertEquals(it.next(), one); |
542 |
< |
assertEquals(it.next(), three); |
541 |
> |
assertSame(it.next(), one); |
542 |
> |
assertSame(it.next(), three); |
543 |
|
assertFalse(it.hasNext()); |
544 |
|
} |
545 |
|
|
547 |
|
* iterator ordering is FIFO |
548 |
|
*/ |
549 |
|
public void testIteratorOrdering() { |
550 |
< |
final LinkedTransferQueue<Integer> q |
632 |
< |
= new LinkedTransferQueue<Integer>(); |
550 |
> |
final LinkedTransferQueue<Integer> q = new LinkedTransferQueue<>(); |
551 |
|
assertEquals(Integer.MAX_VALUE, q.remainingCapacity()); |
552 |
|
q.add(one); |
553 |
|
q.add(two); |
582 |
|
LinkedTransferQueue q = populatedQueue(SIZE); |
583 |
|
String s = q.toString(); |
584 |
|
for (int i = 0; i < SIZE; ++i) { |
585 |
< |
assertTrue(s.indexOf(String.valueOf(i)) >= 0); |
585 |
> |
assertTrue(s.contains(String.valueOf(i))); |
586 |
|
} |
587 |
|
} |
588 |
|
|
591 |
|
*/ |
592 |
|
public void testOfferInExecutor() { |
593 |
|
final LinkedTransferQueue q = new LinkedTransferQueue(); |
594 |
< |
q.add(one); |
595 |
< |
q.add(two); |
596 |
< |
ExecutorService executor = Executors.newFixedThreadPool(2); |
597 |
< |
|
598 |
< |
executor.execute(new CheckedRunnable() { |
599 |
< |
void realRun() { |
600 |
< |
threadAssertTrue(q.offer(three, MEDIUM_DELAY_MS, |
601 |
< |
MILLISECONDS)); |
602 |
< |
}}); |
603 |
< |
|
604 |
< |
executor.execute(new CheckedRunnable() { |
687 |
< |
void realRun() throws InterruptedException { |
688 |
< |
Thread.sleep(SMALL_DELAY_MS); |
689 |
< |
threadAssertEquals(one, q.take()); |
690 |
< |
}}); |
594 |
> |
final CheckedBarrier threadsStarted = new CheckedBarrier(2); |
595 |
> |
final ExecutorService executor = Executors.newFixedThreadPool(2); |
596 |
> |
try (PoolCleaner cleaner = cleaner(executor)) { |
597 |
> |
|
598 |
> |
executor.execute(new CheckedRunnable() { |
599 |
> |
public void realRun() throws InterruptedException { |
600 |
> |
threadsStarted.await(); |
601 |
> |
long startTime = System.nanoTime(); |
602 |
> |
assertTrue(q.offer(one, LONG_DELAY_MS, MILLISECONDS)); |
603 |
> |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
604 |
> |
}}); |
605 |
|
|
606 |
< |
joinPool(executor); |
606 |
> |
executor.execute(new CheckedRunnable() { |
607 |
> |
public void realRun() throws InterruptedException { |
608 |
> |
threadsStarted.await(); |
609 |
> |
assertSame(one, q.take()); |
610 |
> |
checkEmpty(q); |
611 |
> |
}}); |
612 |
> |
} |
613 |
|
} |
614 |
|
|
615 |
|
/** |
617 |
|
*/ |
618 |
|
public void testPollInExecutor() { |
619 |
|
final LinkedTransferQueue q = new LinkedTransferQueue(); |
620 |
< |
ExecutorService executor = Executors.newFixedThreadPool(2); |
621 |
< |
|
622 |
< |
executor.execute(new CheckedRunnable() { |
623 |
< |
void realRun() throws InterruptedException { |
624 |
< |
threadAssertNull(q.poll()); |
625 |
< |
threadAssertTrue(null != q.poll(MEDIUM_DELAY_MS, |
626 |
< |
MILLISECONDS)); |
627 |
< |
threadAssertTrue(q.isEmpty()); |
628 |
< |
}}); |
629 |
< |
|
630 |
< |
executor.execute(new CheckedRunnable() { |
631 |
< |
void realRun() throws InterruptedException { |
632 |
< |
Thread.sleep(SMALL_DELAY_MS); |
713 |
< |
q.put(one); |
714 |
< |
}}); |
620 |
> |
final CheckedBarrier threadsStarted = new CheckedBarrier(2); |
621 |
> |
final ExecutorService executor = Executors.newFixedThreadPool(2); |
622 |
> |
try (PoolCleaner cleaner = cleaner(executor)) { |
623 |
> |
|
624 |
> |
executor.execute(new CheckedRunnable() { |
625 |
> |
public void realRun() throws InterruptedException { |
626 |
> |
assertNull(q.poll()); |
627 |
> |
threadsStarted.await(); |
628 |
> |
long startTime = System.nanoTime(); |
629 |
> |
assertSame(one, q.poll(LONG_DELAY_MS, MILLISECONDS)); |
630 |
> |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
631 |
> |
checkEmpty(q); |
632 |
> |
}}); |
633 |
|
|
634 |
< |
joinPool(executor); |
634 |
> |
executor.execute(new CheckedRunnable() { |
635 |
> |
public void realRun() throws InterruptedException { |
636 |
> |
threadsStarted.await(); |
637 |
> |
q.put(one); |
638 |
> |
}}); |
639 |
> |
} |
640 |
|
} |
641 |
|
|
642 |
|
/** |
643 |
|
* A deserialized serialized queue has same elements in same order |
644 |
|
*/ |
645 |
|
public void testSerialization() throws Exception { |
646 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
647 |
< |
|
725 |
< |
ByteArrayOutputStream bout = new ByteArrayOutputStream(10000); |
726 |
< |
ObjectOutputStream out |
727 |
< |
= new ObjectOutputStream(new BufferedOutputStream(bout)); |
728 |
< |
out.writeObject(q); |
729 |
< |
out.close(); |
730 |
< |
|
731 |
< |
ByteArrayInputStream bin |
732 |
< |
= new ByteArrayInputStream(bout.toByteArray()); |
733 |
< |
ObjectInputStream in |
734 |
< |
= new ObjectInputStream(new BufferedInputStream(bin)); |
735 |
< |
LinkedTransferQueue r = (LinkedTransferQueue) in.readObject(); |
736 |
< |
|
737 |
< |
assertEquals(q.size(), r.size()); |
738 |
< |
while (!q.isEmpty()) { |
739 |
< |
assertEquals(q.remove(), r.remove()); |
740 |
< |
} |
741 |
< |
} |
646 |
> |
Queue x = populatedQueue(SIZE); |
647 |
> |
Queue y = serialClone(x); |
648 |
|
|
649 |
< |
/** |
650 |
< |
* drainTo(null) throws NullPointerException |
651 |
< |
*/ |
652 |
< |
public void testDrainToNull() { |
653 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
654 |
< |
try { |
655 |
< |
q.drainTo(null); |
750 |
< |
shouldThrow(); |
751 |
< |
} catch (NullPointerException success) { |
752 |
< |
} |
753 |
< |
} |
754 |
< |
|
755 |
< |
/** |
756 |
< |
* drainTo(this) throws IllegalArgumentException |
757 |
< |
*/ |
758 |
< |
public void testDrainToSelf() { |
759 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
760 |
< |
try { |
761 |
< |
q.drainTo(q); |
762 |
< |
shouldThrow(); |
763 |
< |
} catch (IllegalArgumentException success) { |
649 |
> |
assertNotSame(y, x); |
650 |
> |
assertEquals(x.size(), y.size()); |
651 |
> |
assertEquals(x.toString(), y.toString()); |
652 |
> |
assertTrue(Arrays.equals(x.toArray(), y.toArray())); |
653 |
> |
while (!x.isEmpty()) { |
654 |
> |
assertFalse(y.isEmpty()); |
655 |
> |
assertEquals(x.remove(), y.remove()); |
656 |
|
} |
657 |
+ |
assertTrue(y.isEmpty()); |
658 |
|
} |
659 |
|
|
660 |
|
/** |
664 |
|
LinkedTransferQueue q = populatedQueue(SIZE); |
665 |
|
ArrayList l = new ArrayList(); |
666 |
|
q.drainTo(l); |
667 |
< |
assertEquals(q.size(), 0); |
668 |
< |
assertEquals(l.size(), SIZE); |
667 |
> |
assertEquals(0, q.size()); |
668 |
> |
assertEquals(SIZE, l.size()); |
669 |
|
for (int i = 0; i < SIZE; ++i) { |
670 |
< |
assertEquals(l.get(i), i); |
670 |
> |
assertEquals(i, l.get(i)); |
671 |
|
} |
672 |
|
q.add(zero); |
673 |
|
q.add(one); |
676 |
|
assertTrue(q.contains(one)); |
677 |
|
l.clear(); |
678 |
|
q.drainTo(l); |
679 |
< |
assertEquals(q.size(), 0); |
680 |
< |
assertEquals(l.size(), 2); |
679 |
> |
assertEquals(0, q.size()); |
680 |
> |
assertEquals(2, l.size()); |
681 |
|
for (int i = 0; i < 2; ++i) { |
682 |
< |
assertEquals(l.get(i), i); |
682 |
> |
assertEquals(i, l.get(i)); |
683 |
|
} |
684 |
|
} |
685 |
|
|
689 |
|
public void testDrainToWithActivePut() throws InterruptedException { |
690 |
|
final LinkedTransferQueue q = populatedQueue(SIZE); |
691 |
|
Thread t = newStartedThread(new CheckedRunnable() { |
692 |
< |
void realRun() { |
692 |
> |
public void realRun() { |
693 |
|
q.put(SIZE + 1); |
694 |
|
}}); |
695 |
|
ArrayList l = new ArrayList(); |
696 |
|
q.drainTo(l); |
697 |
|
assertTrue(l.size() >= SIZE); |
698 |
< |
for (int i = 0; i < SIZE; ++i) { |
699 |
< |
assertEquals(l.get(i), i); |
700 |
< |
} |
808 |
< |
t.join(); |
698 |
> |
for (int i = 0; i < SIZE; ++i) |
699 |
> |
assertEquals(i, l.get(i)); |
700 |
> |
awaitTermination(t); |
701 |
|
assertTrue(q.size() + l.size() >= SIZE); |
702 |
|
} |
703 |
|
|
704 |
|
/** |
705 |
< |
* drainTo(null, n) throws NullPointerException |
814 |
< |
*/ |
815 |
< |
public void testDrainToNullN() { |
816 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
817 |
< |
try { |
818 |
< |
q.drainTo(null, SIZE); |
819 |
< |
shouldThrow(); |
820 |
< |
} catch (NullPointerException success) { |
821 |
< |
} |
822 |
< |
} |
823 |
< |
|
824 |
< |
/** |
825 |
< |
* drainTo(this, n) throws IllegalArgumentException |
826 |
< |
*/ |
827 |
< |
public void testDrainToSelfN() { |
828 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
829 |
< |
try { |
830 |
< |
q.drainTo(q, SIZE); |
831 |
< |
shouldThrow(); |
832 |
< |
} catch (IllegalArgumentException success) { |
833 |
< |
} |
834 |
< |
} |
835 |
< |
|
836 |
< |
/** |
837 |
< |
* drainTo(c, n) empties first max {n, size} elements of queue into c |
705 |
> |
* drainTo(c, n) empties first min(n, size) elements of queue into c |
706 |
|
*/ |
707 |
|
public void testDrainToN() { |
708 |
|
LinkedTransferQueue q = new LinkedTransferQueue(); |
713 |
|
ArrayList l = new ArrayList(); |
714 |
|
q.drainTo(l, i); |
715 |
|
int k = (i < SIZE) ? i : SIZE; |
716 |
< |
assertEquals(l.size(), k); |
717 |
< |
assertEquals(q.size(), SIZE - k); |
718 |
< |
for (int j = 0; j < k; ++j) { |
719 |
< |
assertEquals(l.get(j), j); |
720 |
< |
} |
853 |
< |
while (q.poll() != null) |
854 |
< |
; |
716 |
> |
assertEquals(k, l.size()); |
717 |
> |
assertEquals(SIZE - k, q.size()); |
718 |
> |
for (int j = 0; j < k; ++j) |
719 |
> |
assertEquals(j, l.get(j)); |
720 |
> |
do {} while (q.poll() != null); |
721 |
|
} |
722 |
|
} |
723 |
|
|
727 |
|
*/ |
728 |
|
public void testWaitingConsumer() throws InterruptedException { |
729 |
|
final LinkedTransferQueue q = new LinkedTransferQueue(); |
730 |
< |
assertEquals(q.getWaitingConsumerCount(), 0); |
730 |
> |
assertEquals(0, q.getWaitingConsumerCount()); |
731 |
|
assertFalse(q.hasWaitingConsumer()); |
732 |
+ |
final CountDownLatch threadStarted = new CountDownLatch(1); |
733 |
|
|
734 |
|
Thread t = newStartedThread(new CheckedRunnable() { |
735 |
< |
void realRun() throws InterruptedException { |
736 |
< |
Thread.sleep(SMALL_DELAY_MS); |
737 |
< |
threadAssertTrue(q.hasWaitingConsumer()); |
738 |
< |
threadAssertEquals(q.getWaitingConsumerCount(), 1); |
739 |
< |
threadAssertTrue(q.offer(new Object())); |
740 |
< |
threadAssertFalse(q.hasWaitingConsumer()); |
741 |
< |
threadAssertEquals(q.getWaitingConsumerCount(), 0); |
735 |
> |
public void realRun() throws InterruptedException { |
736 |
> |
threadStarted.countDown(); |
737 |
> |
long startTime = System.nanoTime(); |
738 |
> |
assertSame(one, q.poll(LONG_DELAY_MS, MILLISECONDS)); |
739 |
> |
assertEquals(0, q.getWaitingConsumerCount()); |
740 |
> |
assertFalse(q.hasWaitingConsumer()); |
741 |
> |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
742 |
|
}}); |
743 |
|
|
744 |
< |
assertTrue(q.poll(LONG_DELAY_MS, MILLISECONDS) != null); |
745 |
< |
assertEquals(q.getWaitingConsumerCount(), 0); |
744 |
> |
threadStarted.await(); |
745 |
> |
Callable<Boolean> oneConsumer |
746 |
> |
= new Callable<Boolean>() { public Boolean call() { |
747 |
> |
return q.hasWaitingConsumer() |
748 |
> |
&& q.getWaitingConsumerCount() == 1; }}; |
749 |
> |
waitForThreadToEnterWaitState(t, oneConsumer); |
750 |
> |
|
751 |
> |
assertTrue(q.offer(one)); |
752 |
> |
assertEquals(0, q.getWaitingConsumerCount()); |
753 |
|
assertFalse(q.hasWaitingConsumer()); |
754 |
< |
t.join(); |
754 |
> |
|
755 |
> |
awaitTermination(t); |
756 |
|
} |
757 |
|
|
758 |
|
/** |
768 |
|
|
769 |
|
/** |
770 |
|
* transfer waits until a poll occurs. The transfered element |
771 |
< |
* is returned by this associated poll. |
771 |
> |
* is returned by the associated poll. |
772 |
|
*/ |
773 |
|
public void testTransfer2() throws InterruptedException { |
774 |
< |
final LinkedTransferQueue<Integer> q |
775 |
< |
= new LinkedTransferQueue<Integer>(); |
774 |
> |
final LinkedTransferQueue<Integer> q = new LinkedTransferQueue<>(); |
775 |
> |
final CountDownLatch threadStarted = new CountDownLatch(1); |
776 |
|
|
777 |
|
Thread t = newStartedThread(new CheckedRunnable() { |
778 |
< |
void realRun() throws InterruptedException { |
779 |
< |
q.transfer(SIZE); |
780 |
< |
threadAssertTrue(q.isEmpty()); |
778 |
> |
public void realRun() throws InterruptedException { |
779 |
> |
threadStarted.countDown(); |
780 |
> |
q.transfer(five); |
781 |
> |
checkEmpty(q); |
782 |
|
}}); |
783 |
|
|
784 |
< |
Thread.sleep(SHORT_DELAY_MS); |
785 |
< |
assertEquals(1, q.size()); |
786 |
< |
assertEquals(SIZE, (int) q.poll()); |
787 |
< |
assertTrue(q.isEmpty()); |
788 |
< |
t.join(); |
784 |
> |
threadStarted.await(); |
785 |
> |
Callable<Boolean> oneElement |
786 |
> |
= new Callable<Boolean>() { public Boolean call() { |
787 |
> |
return !q.isEmpty() && q.size() == 1; }}; |
788 |
> |
waitForThreadToEnterWaitState(t, oneElement); |
789 |
> |
|
790 |
> |
assertSame(five, q.poll()); |
791 |
> |
checkEmpty(q); |
792 |
> |
awaitTermination(t); |
793 |
|
} |
794 |
|
|
795 |
|
/** |
796 |
|
* transfer waits until a poll occurs, and then transfers in fifo order |
797 |
|
*/ |
798 |
|
public void testTransfer3() throws InterruptedException { |
799 |
< |
final LinkedTransferQueue<Integer> q |
920 |
< |
= new LinkedTransferQueue<Integer>(); |
799 |
> |
final LinkedTransferQueue<Integer> q = new LinkedTransferQueue<>(); |
800 |
|
|
801 |
|
Thread first = newStartedThread(new CheckedRunnable() { |
802 |
< |
void realRun() throws InterruptedException { |
803 |
< |
Integer i = SIZE + 1; |
804 |
< |
q.transfer(i); |
805 |
< |
threadAssertTrue(!q.contains(i)); |
927 |
< |
threadAssertEquals(1, q.size()); |
802 |
> |
public void realRun() throws InterruptedException { |
803 |
> |
q.transfer(four); |
804 |
> |
assertFalse(q.contains(four)); |
805 |
> |
assertEquals(1, q.size()); |
806 |
|
}}); |
807 |
|
|
808 |
|
Thread interruptedThread = newStartedThread( |
809 |
|
new CheckedInterruptedRunnable() { |
810 |
< |
void realRun() throws InterruptedException { |
811 |
< |
while (q.size() == 0) |
810 |
> |
public void realRun() throws InterruptedException { |
811 |
> |
while (q.isEmpty()) |
812 |
|
Thread.yield(); |
813 |
< |
q.transfer(SIZE); |
813 |
> |
q.transfer(five); |
814 |
|
}}); |
815 |
|
|
816 |
|
while (q.size() < 2) |
817 |
|
Thread.yield(); |
818 |
|
assertEquals(2, q.size()); |
819 |
< |
assertEquals(SIZE + 1, (int) q.poll()); |
819 |
> |
assertSame(four, q.poll()); |
820 |
|
first.join(); |
821 |
|
assertEquals(1, q.size()); |
822 |
|
interruptedThread.interrupt(); |
823 |
|
interruptedThread.join(); |
824 |
< |
assertEquals(0, q.size()); |
947 |
< |
assertTrue(q.isEmpty()); |
824 |
> |
checkEmpty(q); |
825 |
|
} |
826 |
|
|
827 |
|
/** |
832 |
|
final LinkedTransferQueue q = new LinkedTransferQueue(); |
833 |
|
|
834 |
|
Thread t = newStartedThread(new CheckedRunnable() { |
835 |
< |
void realRun() throws InterruptedException { |
835 |
> |
public void realRun() throws InterruptedException { |
836 |
|
q.transfer(four); |
837 |
< |
threadAssertFalse(q.contains(four)); |
838 |
< |
threadAssertEquals(three, q.poll()); |
837 |
> |
assertFalse(q.contains(four)); |
838 |
> |
assertSame(three, q.poll()); |
839 |
|
}}); |
840 |
|
|
841 |
< |
Thread.sleep(SHORT_DELAY_MS); |
841 |
> |
while (q.isEmpty()) |
842 |
> |
Thread.yield(); |
843 |
> |
assertFalse(q.isEmpty()); |
844 |
> |
assertEquals(1, q.size()); |
845 |
|
assertTrue(q.offer(three)); |
846 |
< |
assertEquals(four, q.poll()); |
847 |
< |
t.join(); |
846 |
> |
assertSame(four, q.poll()); |
847 |
> |
awaitTermination(t); |
848 |
|
} |
849 |
|
|
850 |
|
/** |
851 |
|
* transfer waits until a take occurs. The transfered element |
852 |
< |
* is returned by this associated take. |
852 |
> |
* is returned by the associated take. |
853 |
|
*/ |
854 |
|
public void testTransfer5() throws InterruptedException { |
855 |
< |
final LinkedTransferQueue<Integer> q |
976 |
< |
= new LinkedTransferQueue<Integer>(); |
855 |
> |
final LinkedTransferQueue<Integer> q = new LinkedTransferQueue<>(); |
856 |
|
|
857 |
|
Thread t = newStartedThread(new CheckedRunnable() { |
858 |
< |
void realRun() throws InterruptedException { |
859 |
< |
q.transfer(SIZE); |
858 |
> |
public void realRun() throws InterruptedException { |
859 |
> |
q.transfer(four); |
860 |
|
checkEmpty(q); |
861 |
|
}}); |
862 |
|
|
863 |
< |
Thread.sleep(SHORT_DELAY_MS); |
864 |
< |
assertEquals(SIZE, (int) q.take()); |
863 |
> |
while (q.isEmpty()) |
864 |
> |
Thread.yield(); |
865 |
> |
assertFalse(q.isEmpty()); |
866 |
> |
assertEquals(1, q.size()); |
867 |
> |
assertSame(four, q.take()); |
868 |
|
checkEmpty(q); |
869 |
< |
t.join(); |
869 |
> |
awaitTermination(t); |
870 |
|
} |
871 |
|
|
872 |
|
/** |
873 |
|
* tryTransfer(null) throws NullPointerException |
874 |
|
*/ |
875 |
|
public void testTryTransfer1() { |
876 |
+ |
final LinkedTransferQueue q = new LinkedTransferQueue(); |
877 |
|
try { |
995 |
– |
final LinkedTransferQueue q = new LinkedTransferQueue(); |
878 |
|
q.tryTransfer(null); |
879 |
|
shouldThrow(); |
880 |
|
} catch (NullPointerException success) {} |
900 |
|
final LinkedTransferQueue q = new LinkedTransferQueue(); |
901 |
|
|
902 |
|
Thread t = newStartedThread(new CheckedRunnable() { |
903 |
< |
void realRun() { |
903 |
> |
public void realRun() { |
904 |
|
while (! q.hasWaitingConsumer()) |
905 |
|
Thread.yield(); |
906 |
< |
threadAssertTrue(q.hasWaitingConsumer()); |
907 |
< |
threadAssertTrue(q.isEmpty()); |
908 |
< |
threadAssertTrue(q.size() == 0); |
1027 |
< |
threadAssertTrue(q.tryTransfer(hotPotato)); |
906 |
> |
assertTrue(q.hasWaitingConsumer()); |
907 |
> |
checkEmpty(q); |
908 |
> |
assertTrue(q.tryTransfer(hotPotato)); |
909 |
|
}}); |
910 |
|
|
911 |
< |
assertTrue(q.poll(MEDIUM_DELAY_MS, MILLISECONDS) == hotPotato); |
911 |
> |
long startTime = System.nanoTime(); |
912 |
> |
assertSame(hotPotato, q.poll(LONG_DELAY_MS, MILLISECONDS)); |
913 |
> |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
914 |
|
checkEmpty(q); |
915 |
< |
t.join(); |
915 |
> |
awaitTermination(t); |
916 |
|
} |
917 |
|
|
918 |
|
/** |
924 |
|
final LinkedTransferQueue q = new LinkedTransferQueue(); |
925 |
|
|
926 |
|
Thread t = newStartedThread(new CheckedRunnable() { |
927 |
< |
void realRun() { |
927 |
> |
public void realRun() { |
928 |
|
while (! q.hasWaitingConsumer()) |
929 |
|
Thread.yield(); |
930 |
< |
threadAssertTrue(q.hasWaitingConsumer()); |
931 |
< |
threadAssertTrue(q.isEmpty()); |
932 |
< |
threadAssertTrue(q.size() == 0); |
1050 |
< |
threadAssertTrue(q.tryTransfer(hotPotato)); |
930 |
> |
assertTrue(q.hasWaitingConsumer()); |
931 |
> |
checkEmpty(q); |
932 |
> |
assertTrue(q.tryTransfer(hotPotato)); |
933 |
|
}}); |
934 |
|
|
935 |
< |
assertTrue(q.take() == hotPotato); |
935 |
> |
assertSame(q.take(), hotPotato); |
936 |
|
checkEmpty(q); |
937 |
< |
t.join(); |
937 |
> |
awaitTermination(t); |
938 |
|
} |
939 |
|
|
940 |
|
/** |
941 |
< |
* tryTransfer waits the amount given if interrupted, and |
1060 |
< |
* throws interrupted exception |
941 |
> |
* tryTransfer blocks interruptibly if no takers |
942 |
|
*/ |
943 |
|
public void testTryTransfer5() throws InterruptedException { |
944 |
|
final LinkedTransferQueue q = new LinkedTransferQueue(); |
945 |
+ |
final CountDownLatch pleaseInterrupt = new CountDownLatch(1); |
946 |
+ |
assertTrue(q.isEmpty()); |
947 |
+ |
|
948 |
+ |
Thread t = newStartedThread(new CheckedRunnable() { |
949 |
+ |
public void realRun() throws InterruptedException { |
950 |
+ |
long startTime = System.nanoTime(); |
951 |
+ |
Thread.currentThread().interrupt(); |
952 |
+ |
try { |
953 |
+ |
q.tryTransfer(new Object(), LONG_DELAY_MS, MILLISECONDS); |
954 |
+ |
shouldThrow(); |
955 |
+ |
} catch (InterruptedException success) {} |
956 |
+ |
assertFalse(Thread.interrupted()); |
957 |
|
|
958 |
< |
Thread toInterrupt = newStartedThread(new CheckedInterruptedRunnable() { |
959 |
< |
void realRun() throws InterruptedException { |
960 |
< |
q.tryTransfer(new Object(), LONG_DELAY_MS, MILLISECONDS); |
958 |
> |
pleaseInterrupt.countDown(); |
959 |
> |
try { |
960 |
> |
q.tryTransfer(new Object(), LONG_DELAY_MS, MILLISECONDS); |
961 |
> |
shouldThrow(); |
962 |
> |
} catch (InterruptedException success) {} |
963 |
> |
assertFalse(Thread.interrupted()); |
964 |
> |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
965 |
|
}}); |
966 |
|
|
967 |
< |
Thread.sleep(SMALL_DELAY_MS); |
968 |
< |
toInterrupt.interrupt(); |
969 |
< |
toInterrupt.join(); |
967 |
> |
await(pleaseInterrupt); |
968 |
> |
assertThreadBlocks(t, Thread.State.TIMED_WAITING); |
969 |
> |
t.interrupt(); |
970 |
> |
awaitTermination(t); |
971 |
> |
checkEmpty(q); |
972 |
|
} |
973 |
|
|
974 |
|
/** |
975 |
< |
* tryTransfer gives up after the timeout and return false |
975 |
> |
* tryTransfer gives up after the timeout and returns false |
976 |
|
*/ |
977 |
|
public void testTryTransfer6() throws InterruptedException { |
978 |
|
final LinkedTransferQueue q = new LinkedTransferQueue(); |
979 |
|
|
980 |
|
Thread t = newStartedThread(new CheckedRunnable() { |
981 |
< |
void realRun() throws InterruptedException { |
982 |
< |
threadAssertFalse |
983 |
< |
(q.tryTransfer(new Object(), |
984 |
< |
SHORT_DELAY_MS, MILLISECONDS)); |
981 |
> |
public void realRun() throws InterruptedException { |
982 |
> |
long startTime = System.nanoTime(); |
983 |
> |
assertFalse(q.tryTransfer(new Object(), |
984 |
> |
timeoutMillis(), MILLISECONDS)); |
985 |
> |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
986 |
> |
checkEmpty(q); |
987 |
|
}}); |
988 |
|
|
989 |
< |
Thread.sleep(SMALL_DELAY_MS); |
989 |
> |
awaitTermination(t); |
990 |
|
checkEmpty(q); |
1090 |
– |
t.join(); |
991 |
|
} |
992 |
|
|
993 |
|
/** |
999 |
|
assertTrue(q.offer(four)); |
1000 |
|
|
1001 |
|
Thread t = newStartedThread(new CheckedRunnable() { |
1002 |
< |
void realRun() throws InterruptedException { |
1003 |
< |
threadAssertTrue(q.tryTransfer(five, |
1004 |
< |
MEDIUM_DELAY_MS, MILLISECONDS)); |
1005 |
< |
threadAssertTrue(q.isEmpty()); |
1002 |
> |
public void realRun() throws InterruptedException { |
1003 |
> |
long startTime = System.nanoTime(); |
1004 |
> |
assertTrue(q.tryTransfer(five, LONG_DELAY_MS, MILLISECONDS)); |
1005 |
> |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
1006 |
> |
checkEmpty(q); |
1007 |
|
}}); |
1008 |
|
|
1009 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1009 |
> |
while (q.size() != 2) |
1010 |
> |
Thread.yield(); |
1011 |
|
assertEquals(2, q.size()); |
1012 |
< |
assertEquals(four, q.poll()); |
1013 |
< |
assertEquals(five, q.poll()); |
1012 |
> |
assertSame(four, q.poll()); |
1013 |
> |
assertSame(five, q.poll()); |
1014 |
|
checkEmpty(q); |
1015 |
< |
t.join(); |
1015 |
> |
awaitTermination(t); |
1016 |
|
} |
1017 |
|
|
1018 |
|
/** |
1019 |
< |
* tryTransfer attempts to enqueue into the q and fails returning |
1020 |
< |
* false not enqueueing and the successive poll is null |
1019 |
> |
* tryTransfer attempts to enqueue into the queue and fails |
1020 |
> |
* returning false not enqueueing and the successive poll is null |
1021 |
|
*/ |
1022 |
|
public void testTryTransfer8() throws InterruptedException { |
1023 |
|
final LinkedTransferQueue q = new LinkedTransferQueue(); |
1024 |
|
assertTrue(q.offer(four)); |
1025 |
|
assertEquals(1, q.size()); |
1026 |
< |
assertFalse(q.tryTransfer(five, SHORT_DELAY_MS, MILLISECONDS)); |
1026 |
> |
long startTime = System.nanoTime(); |
1027 |
> |
assertFalse(q.tryTransfer(five, timeoutMillis(), MILLISECONDS)); |
1028 |
> |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
1029 |
|
assertEquals(1, q.size()); |
1030 |
< |
assertEquals(four, q.poll()); |
1030 |
> |
assertSame(four, q.poll()); |
1031 |
|
assertNull(q.poll()); |
1032 |
|
checkEmpty(q); |
1033 |
|
} |
1034 |
|
|
1035 |
|
private LinkedTransferQueue<Integer> populatedQueue(int n) { |
1036 |
< |
LinkedTransferQueue<Integer> q = new LinkedTransferQueue<Integer>(); |
1037 |
< |
assertTrue(q.isEmpty()); |
1036 |
> |
LinkedTransferQueue<Integer> q = new LinkedTransferQueue<>(); |
1037 |
> |
checkEmpty(q); |
1038 |
|
for (int i = 0; i < n; i++) { |
1039 |
|
assertEquals(i, q.size()); |
1040 |
|
assertTrue(q.offer(i)); |
1043 |
|
assertFalse(q.isEmpty()); |
1044 |
|
return q; |
1045 |
|
} |
1046 |
+ |
|
1047 |
+ |
/** |
1048 |
+ |
* remove(null), contains(null) always return false |
1049 |
+ |
*/ |
1050 |
+ |
public void testNeverContainsNull() { |
1051 |
+ |
Collection<?>[] qs = { |
1052 |
+ |
new LinkedTransferQueue<Object>(), |
1053 |
+ |
populatedQueue(2), |
1054 |
+ |
}; |
1055 |
+ |
|
1056 |
+ |
for (Collection<?> q : qs) { |
1057 |
+ |
assertFalse(q.contains(null)); |
1058 |
+ |
assertFalse(q.remove(null)); |
1059 |
+ |
} |
1060 |
+ |
} |
1061 |
|
} |