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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; |
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import java.io.ByteArrayInputStream; |
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import java.io.ByteArrayOutputStream; |
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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; |
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 static java.util.concurrent.TimeUnit.NANOSECONDS; |
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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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|
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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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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 newTestSuite(LinkedTransferQueueTest.class, |
40 |
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new Generic().testSuite()); |
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} |
42 |
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|
43 |
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void checkEmpty(BlockingQueue q) { |
44 |
< |
try { |
45 |
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assertTrue(q.isEmpty()); |
46 |
< |
assertEquals(0, q.size()); |
47 |
< |
assertNull(q.peek()); |
48 |
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assertNull(q.poll()); |
49 |
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assertNull(q.poll(0, MILLISECONDS)); |
50 |
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assertEquals(q.toString(), "[]"); |
51 |
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assertTrue(Arrays.equals(q.toArray(), new Object[0])); |
52 |
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assertFalse(q.iterator().hasNext()); |
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try { |
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q.element(); |
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shouldThrow(); |
56 |
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} catch (NoSuchElementException success) {} |
57 |
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try { |
58 |
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q.iterator().next(); |
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shouldThrow(); |
60 |
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} catch (NoSuchElementException success) {} |
61 |
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try { |
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q.remove(); |
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shouldThrow(); |
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} catch (NoSuchElementException success) {} |
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} catch (InterruptedException ie) { |
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threadUnexpectedException(ie); |
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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, |
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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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* 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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* throws NullPointerException |
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*/ |
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public void testConstructor4() { |
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Integer[] ints = new Integer[SIZE]; |
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for (int i = 0; i < SIZE - 1; ++i) |
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ints[i] = i; |
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Collection<Integer> elements = Arrays.asList(ints); |
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try { |
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Integer[] ints = new Integer[SIZE]; |
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for (int i = 0; i < SIZE - 1; ++i) { |
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ints[i] = i; |
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} |
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new LinkedTransferQueue(Arrays.asList(ints)); |
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new LinkedTransferQueue(elements); |
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shouldThrow(); |
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} catch (NullPointerException success) {} |
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} |
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* remainingCapacity() always returns Integer.MAX_VALUE |
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*/ |
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public void testRemainingCapacity() { |
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LinkedTransferQueue<Integer> q = populatedQueue(SIZE); |
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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()); |
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q.remove(); |
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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()); |
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q.add(i); |
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assertTrue(q.add(i)); |
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} |
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} |
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|
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/** |
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* offer(null) throws NullPointerException |
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*/ |
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public void testOfferNull() { |
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try { |
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LinkedTransferQueue q = new LinkedTransferQueue(); |
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q.offer(null); |
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shouldThrow(); |
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} catch (NullPointerException success) {} |
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} |
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|
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/** |
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* add(null) throws NullPointerException |
171 |
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*/ |
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public void testAddNull() { |
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try { |
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LinkedTransferQueue q = new LinkedTransferQueue(); |
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q.add(null); |
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shouldThrow(); |
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} catch (NullPointerException success) {} |
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} |
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|
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/** |
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* addAll(null) throws NullPointerException |
182 |
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*/ |
183 |
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public void testAddAll1() { |
184 |
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try { |
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LinkedTransferQueue q = new LinkedTransferQueue(); |
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q.addAll(null); |
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shouldThrow(); |
188 |
– |
} catch (NullPointerException success) {} |
189 |
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} |
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|
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/** |
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* addAll(this) throws IllegalArgumentException |
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*/ |
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public void testAddAllSelf() { |
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LinkedTransferQueue q = populatedQueue(SIZE); |
144 |
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try { |
196 |
– |
LinkedTransferQueue q = populatedQueue(SIZE); |
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q.addAll(q); |
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shouldThrow(); |
147 |
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} catch (IllegalArgumentException success) {} |
148 |
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} |
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|
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/** |
203 |
– |
* addAll of a collection with null elements throws NullPointerException |
204 |
– |
*/ |
205 |
– |
public void testAddAll2() { |
206 |
– |
try { |
207 |
– |
LinkedTransferQueue q = new LinkedTransferQueue(); |
208 |
– |
Integer[] ints = new Integer[SIZE]; |
209 |
– |
q.addAll(Arrays.asList(ints)); |
210 |
– |
shouldThrow(); |
211 |
– |
} catch (NullPointerException success) {} |
212 |
– |
} |
213 |
– |
|
214 |
– |
/** |
151 |
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* addAll of a collection with any null elements throws |
152 |
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* NullPointerException after possibly adding some elements |
153 |
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*/ |
154 |
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public void testAddAll3() { |
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+ |
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 { |
220 |
– |
LinkedTransferQueue q = new LinkedTransferQueue(); |
221 |
– |
Integer[] ints = new Integer[SIZE]; |
222 |
– |
for (int i = 0; i < SIZE - 1; ++i) { |
223 |
– |
ints[i] = i; |
224 |
– |
} |
160 |
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q.addAll(Arrays.asList(ints)); |
161 |
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shouldThrow(); |
162 |
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} catch (NullPointerException success) {} |
180 |
|
} |
181 |
|
|
182 |
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/** |
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 |
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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 |
|
} |
205 |
|
* take removes existing elements until empty, then blocks interruptibly |
206 |
|
*/ |
207 |
|
public void testBlockingTake() throws InterruptedException { |
208 |
< |
final BlockingQueue<Integer> q = populatedQueue(SIZE); |
209 |
< |
final CountDownLatch aboutToWait = new CountDownLatch(1); |
208 |
> |
final BlockingQueue q = populatedQueue(SIZE); |
209 |
> |
final CountDownLatch pleaseInterrupt = new CountDownLatch(1); |
210 |
|
Thread t = newStartedThread(new CheckedRunnable() { |
211 |
|
public void realRun() throws InterruptedException { |
212 |
< |
for (int i = 0; i < SIZE; ++i) { |
213 |
< |
assertEquals(i, (int) q.take()); |
214 |
< |
} |
215 |
< |
aboutToWait.countDown(); |
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 |
|
|
229 |
< |
aboutToWait.await(); |
230 |
< |
waitForThreadToEnterWaitState(t, SMALL_DELAY_MS); |
229 |
> |
await(pleaseInterrupt); |
230 |
> |
assertThreadBlocks(t, Thread.State.WAITING); |
231 |
|
t.interrupt(); |
232 |
< |
awaitTermination(t, MEDIUM_DELAY_MS); |
302 |
< |
checkEmpty(q); |
232 |
> |
awaitTermination(t); |
233 |
|
} |
234 |
|
|
235 |
|
/** |
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(); |
266 |
< |
assertEquals(i, (int) q.poll(SMALL_DELAY_MS, MILLISECONDS)); |
267 |
< |
assertTrue(millisElapsedSince(t0) < SMALL_DELAY_MS); |
268 |
< |
} |
269 |
< |
long t0 = System.nanoTime(); |
270 |
< |
assertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS)); |
271 |
< |
assertTrue(millisElapsedSince(t0) >= SHORT_DELAY_MS); |
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 |
|
|
278 |
|
*/ |
279 |
|
public void testInterruptedTimedPoll() throws InterruptedException { |
280 |
|
final BlockingQueue<Integer> q = populatedQueue(SIZE); |
281 |
< |
final CountDownLatch aboutToWait = new CountDownLatch(1); |
281 |
> |
final CountDownLatch pleaseInterrupt = new CountDownLatch(1); |
282 |
|
Thread t = newStartedThread(new CheckedRunnable() { |
283 |
|
public void realRun() throws InterruptedException { |
284 |
< |
for (int i = 0; i < SIZE; ++i) { |
285 |
< |
long t0 = System.nanoTime(); |
284 |
> |
long startTime = System.nanoTime(); |
285 |
> |
for (int i = 0; i < SIZE; i++) |
286 |
|
assertEquals(i, (int) q.poll(LONG_DELAY_MS, MILLISECONDS)); |
287 |
< |
assertTrue(millisElapsedSince(t0) < SMALL_DELAY_MS); |
288 |
< |
} |
289 |
< |
long t0 = System.nanoTime(); |
290 |
< |
aboutToWait.countDown(); |
287 |
> |
|
288 |
> |
Thread.currentThread().interrupt(); |
289 |
> |
try { |
290 |
> |
q.poll(LONG_DELAY_MS, MILLISECONDS); |
291 |
> |
shouldThrow(); |
292 |
> |
} catch (InterruptedException success) {} |
293 |
> |
assertFalse(Thread.interrupted()); |
294 |
> |
|
295 |
> |
pleaseInterrupt.countDown(); |
296 |
|
try { |
297 |
< |
q.poll(MEDIUM_DELAY_MS, MILLISECONDS); |
297 |
> |
q.poll(LONG_DELAY_MS, MILLISECONDS); |
298 |
|
shouldThrow(); |
299 |
< |
} catch (InterruptedException success) { |
300 |
< |
assertTrue(millisElapsedSince(t0) < MEDIUM_DELAY_MS); |
301 |
< |
} |
299 |
> |
} catch (InterruptedException success) {} |
300 |
> |
assertFalse(Thread.interrupted()); |
301 |
> |
|
302 |
> |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
303 |
|
}}); |
304 |
|
|
305 |
< |
aboutToWait.await(); |
306 |
< |
waitForThreadToEnterWaitState(t, SMALL_DELAY_MS); |
305 |
> |
await(pleaseInterrupt); |
306 |
> |
assertThreadBlocks(t, Thread.State.TIMED_WAITING); |
307 |
|
t.interrupt(); |
308 |
< |
awaitTermination(t, MEDIUM_DELAY_MS); |
308 |
> |
awaitTermination(t); |
309 |
|
checkEmpty(q); |
310 |
|
} |
311 |
|
|
317 |
|
final BlockingQueue<Integer> q = populatedQueue(SIZE); |
318 |
|
Thread t = newStartedThread(new CheckedRunnable() { |
319 |
|
public void realRun() throws InterruptedException { |
320 |
+ |
long startTime = System.nanoTime(); |
321 |
|
Thread.currentThread().interrupt(); |
322 |
< |
for (int i = 0; i < SIZE; ++i) { |
386 |
< |
long t0 = System.nanoTime(); |
322 |
> |
for (int i = 0; i < SIZE; ++i) |
323 |
|
assertEquals(i, (int) q.poll(LONG_DELAY_MS, MILLISECONDS)); |
388 |
– |
assertTrue(millisElapsedSince(t0) < SMALL_DELAY_MS); |
389 |
– |
} |
324 |
|
try { |
325 |
< |
q.poll(MEDIUM_DELAY_MS, MILLISECONDS); |
325 |
> |
q.poll(LONG_DELAY_MS, MILLISECONDS); |
326 |
|
shouldThrow(); |
327 |
|
} catch (InterruptedException success) {} |
328 |
+ |
assertFalse(Thread.interrupted()); |
329 |
+ |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
330 |
|
}}); |
331 |
|
|
332 |
< |
awaitTermination(t, MEDIUM_DELAY_MS); |
332 |
> |
awaitTermination(t); |
333 |
|
checkEmpty(q); |
334 |
|
} |
335 |
|
|
380 |
|
} |
381 |
|
|
382 |
|
/** |
447 |
– |
* remove(x) removes x and returns true if present |
448 |
– |
*/ |
449 |
– |
public void testRemoveElement() throws InterruptedException { |
450 |
– |
LinkedTransferQueue q = populatedQueue(SIZE); |
451 |
– |
for (int i = 1; i < SIZE; i+=2) { |
452 |
– |
assertTrue(q.contains(i)); |
453 |
– |
assertTrue(q.remove(i)); |
454 |
– |
assertFalse(q.contains(i)); |
455 |
– |
assertTrue(q.contains(i-1)); |
456 |
– |
} |
457 |
– |
for (int i = 0; i < SIZE; i+=2) { |
458 |
– |
assertTrue(q.contains(i)); |
459 |
– |
assertTrue(q.remove(i)); |
460 |
– |
assertFalse(q.contains(i)); |
461 |
– |
assertFalse(q.remove(i+1)); |
462 |
– |
assertFalse(q.contains(i+1)); |
463 |
– |
} |
464 |
– |
checkEmpty(q); |
465 |
– |
} |
466 |
– |
|
467 |
– |
/** |
383 |
|
* An add following remove(x) succeeds |
384 |
|
*/ |
385 |
|
public void testRemoveElementAndAdd() throws InterruptedException { |
425 |
|
*/ |
426 |
|
public void testContainsAll() { |
427 |
|
LinkedTransferQueue<Integer> q = populatedQueue(SIZE); |
428 |
< |
LinkedTransferQueue<Integer> p = new LinkedTransferQueue<Integer>(); |
428 |
> |
LinkedTransferQueue<Integer> p = new LinkedTransferQueue<>(); |
429 |
|
for (int i = 0; i < SIZE; ++i) { |
430 |
|
assertTrue(q.containsAll(p)); |
431 |
|
assertFalse(p.containsAll(q)); |
495 |
|
} |
496 |
|
|
497 |
|
/** |
583 |
– |
* toArray(null) throws NullPointerException |
584 |
– |
*/ |
585 |
– |
public void testToArray_NullArg() { |
586 |
– |
LinkedTransferQueue q = populatedQueue(SIZE); |
587 |
– |
try { |
588 |
– |
q.toArray(null); |
589 |
– |
shouldThrow(); |
590 |
– |
} catch (NullPointerException success) {} |
591 |
– |
} |
592 |
– |
|
593 |
– |
/** |
498 |
|
* toArray(incompatible array type) throws ArrayStoreException |
499 |
|
*/ |
500 |
|
public void testToArray1_BadArg() { |
511 |
|
public void testIterator() throws InterruptedException { |
512 |
|
LinkedTransferQueue q = populatedQueue(SIZE); |
513 |
|
Iterator it = q.iterator(); |
514 |
< |
int i = 0; |
515 |
< |
while (it.hasNext()) { |
516 |
< |
assertEquals(it.next(), i++); |
517 |
< |
} |
514 |
> |
int i; |
515 |
> |
for (i = 0; it.hasNext(); i++) |
516 |
> |
assertTrue(q.contains(it.next())); |
517 |
> |
assertEquals(i, SIZE); |
518 |
> |
assertIteratorExhausted(it); |
519 |
> |
|
520 |
> |
it = q.iterator(); |
521 |
> |
for (i = 0; it.hasNext(); i++) |
522 |
> |
assertEquals(it.next(), q.take()); |
523 |
|
assertEquals(i, SIZE); |
524 |
+ |
assertIteratorExhausted(it); |
525 |
+ |
} |
526 |
+ |
|
527 |
+ |
/** |
528 |
+ |
* iterator of empty collection has no elements |
529 |
+ |
*/ |
530 |
+ |
public void testEmptyIterator() { |
531 |
+ |
assertIteratorExhausted(new LinkedTransferQueue().iterator()); |
532 |
|
} |
533 |
|
|
534 |
|
/** |
554 |
|
* iterator ordering is FIFO |
555 |
|
*/ |
556 |
|
public void testIteratorOrdering() { |
557 |
< |
final LinkedTransferQueue<Integer> q |
641 |
< |
= new LinkedTransferQueue<Integer>(); |
557 |
> |
final LinkedTransferQueue<Integer> q = new LinkedTransferQueue<>(); |
558 |
|
assertEquals(Integer.MAX_VALUE, q.remainingCapacity()); |
559 |
|
q.add(one); |
560 |
|
q.add(two); |
589 |
|
LinkedTransferQueue q = populatedQueue(SIZE); |
590 |
|
String s = q.toString(); |
591 |
|
for (int i = 0; i < SIZE; ++i) { |
592 |
< |
assertTrue(s.indexOf(String.valueOf(i)) >= 0); |
592 |
> |
assertTrue(s.contains(String.valueOf(i))); |
593 |
|
} |
594 |
|
} |
595 |
|
|
598 |
|
*/ |
599 |
|
public void testOfferInExecutor() { |
600 |
|
final LinkedTransferQueue q = new LinkedTransferQueue(); |
601 |
< |
final CountDownLatch threadsStarted = new CountDownLatch(2); |
602 |
< |
ExecutorService executor = Executors.newFixedThreadPool(2); |
603 |
< |
|
688 |
< |
executor.execute(new CheckedRunnable() { |
689 |
< |
public void realRun() throws InterruptedException { |
690 |
< |
threadsStarted.countDown(); |
691 |
< |
threadsStarted.await(); |
692 |
< |
assertTrue(q.offer(one, MEDIUM_DELAY_MS, MILLISECONDS)); |
693 |
< |
}}); |
601 |
> |
final CheckedBarrier threadsStarted = new CheckedBarrier(2); |
602 |
> |
final ExecutorService executor = Executors.newFixedThreadPool(2); |
603 |
> |
try (PoolCleaner cleaner = cleaner(executor)) { |
604 |
|
|
605 |
< |
executor.execute(new CheckedRunnable() { |
606 |
< |
public void realRun() throws InterruptedException { |
607 |
< |
threadsStarted.countDown(); |
608 |
< |
threadsStarted.await(); |
609 |
< |
assertSame(one, q.take()); |
610 |
< |
checkEmpty(q); |
611 |
< |
}}); |
605 |
> |
executor.execute(new CheckedRunnable() { |
606 |
> |
public void realRun() throws InterruptedException { |
607 |
> |
threadsStarted.await(); |
608 |
> |
long startTime = System.nanoTime(); |
609 |
> |
assertTrue(q.offer(one, LONG_DELAY_MS, MILLISECONDS)); |
610 |
> |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
611 |
> |
}}); |
612 |
|
|
613 |
< |
joinPool(executor); |
613 |
> |
executor.execute(new CheckedRunnable() { |
614 |
> |
public void realRun() throws InterruptedException { |
615 |
> |
threadsStarted.await(); |
616 |
> |
assertSame(one, q.take()); |
617 |
> |
checkEmpty(q); |
618 |
> |
}}); |
619 |
> |
} |
620 |
|
} |
621 |
|
|
622 |
|
/** |
624 |
|
*/ |
625 |
|
public void testPollInExecutor() { |
626 |
|
final LinkedTransferQueue q = new LinkedTransferQueue(); |
627 |
< |
final CountDownLatch threadsStarted = new CountDownLatch(2); |
628 |
< |
ExecutorService executor = Executors.newFixedThreadPool(2); |
629 |
< |
|
714 |
< |
executor.execute(new CheckedRunnable() { |
715 |
< |
public void realRun() throws InterruptedException { |
716 |
< |
assertNull(q.poll()); |
717 |
< |
threadsStarted.countDown(); |
718 |
< |
threadsStarted.await(); |
719 |
< |
assertSame(one, q.poll(SMALL_DELAY_MS, MILLISECONDS)); |
720 |
< |
checkEmpty(q); |
721 |
< |
}}); |
627 |
> |
final CheckedBarrier threadsStarted = new CheckedBarrier(2); |
628 |
> |
final ExecutorService executor = Executors.newFixedThreadPool(2); |
629 |
> |
try (PoolCleaner cleaner = cleaner(executor)) { |
630 |
|
|
631 |
< |
executor.execute(new CheckedRunnable() { |
632 |
< |
public void realRun() throws InterruptedException { |
633 |
< |
threadsStarted.countDown(); |
634 |
< |
threadsStarted.await(); |
635 |
< |
q.put(one); |
636 |
< |
}}); |
631 |
> |
executor.execute(new CheckedRunnable() { |
632 |
> |
public void realRun() throws InterruptedException { |
633 |
> |
assertNull(q.poll()); |
634 |
> |
threadsStarted.await(); |
635 |
> |
long startTime = System.nanoTime(); |
636 |
> |
assertSame(one, q.poll(LONG_DELAY_MS, MILLISECONDS)); |
637 |
> |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
638 |
> |
checkEmpty(q); |
639 |
> |
}}); |
640 |
|
|
641 |
< |
joinPool(executor); |
641 |
> |
executor.execute(new CheckedRunnable() { |
642 |
> |
public void realRun() throws InterruptedException { |
643 |
> |
threadsStarted.await(); |
644 |
> |
q.put(one); |
645 |
> |
}}); |
646 |
> |
} |
647 |
|
} |
648 |
|
|
649 |
|
/** |
650 |
< |
* A deserialized serialized queue has same elements in same order |
650 |
> |
* A deserialized/reserialized queue has same elements in same order |
651 |
|
*/ |
652 |
|
public void testSerialization() throws Exception { |
653 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
654 |
< |
|
739 |
< |
ByteArrayOutputStream bout = new ByteArrayOutputStream(10000); |
740 |
< |
ObjectOutputStream out |
741 |
< |
= new ObjectOutputStream(new BufferedOutputStream(bout)); |
742 |
< |
out.writeObject(q); |
743 |
< |
out.close(); |
744 |
< |
|
745 |
< |
ByteArrayInputStream bin |
746 |
< |
= new ByteArrayInputStream(bout.toByteArray()); |
747 |
< |
ObjectInputStream in |
748 |
< |
= new ObjectInputStream(new BufferedInputStream(bin)); |
749 |
< |
LinkedTransferQueue r = (LinkedTransferQueue) in.readObject(); |
653 |
> |
Queue x = populatedQueue(SIZE); |
654 |
> |
Queue y = serialClone(x); |
655 |
|
|
656 |
< |
assertEquals(q.size(), r.size()); |
657 |
< |
assertEquals(q.toString(), r.toString()); |
658 |
< |
assertTrue(Arrays.equals(q.toArray(), r.toArray())); |
659 |
< |
while (!q.isEmpty()) { |
660 |
< |
assertEquals(q.remove(), r.remove()); |
656 |
> |
assertNotSame(y, x); |
657 |
> |
assertEquals(x.size(), y.size()); |
658 |
> |
assertEquals(x.toString(), y.toString()); |
659 |
> |
assertTrue(Arrays.equals(x.toArray(), y.toArray())); |
660 |
> |
while (!x.isEmpty()) { |
661 |
> |
assertFalse(y.isEmpty()); |
662 |
> |
assertEquals(x.remove(), y.remove()); |
663 |
|
} |
664 |
< |
} |
758 |
< |
|
759 |
< |
/** |
760 |
< |
* drainTo(null) throws NullPointerException |
761 |
< |
*/ |
762 |
< |
public void testDrainToNull() { |
763 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
764 |
< |
try { |
765 |
< |
q.drainTo(null); |
766 |
< |
shouldThrow(); |
767 |
< |
} catch (NullPointerException success) {} |
768 |
< |
} |
769 |
< |
|
770 |
< |
/** |
771 |
< |
* drainTo(this) throws IllegalArgumentException |
772 |
< |
*/ |
773 |
< |
public void testDrainToSelf() { |
774 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
775 |
< |
try { |
776 |
< |
q.drainTo(q); |
777 |
< |
shouldThrow(); |
778 |
< |
} catch (IllegalArgumentException success) {} |
664 |
> |
assertTrue(y.isEmpty()); |
665 |
|
} |
666 |
|
|
667 |
|
/** |
671 |
|
LinkedTransferQueue q = populatedQueue(SIZE); |
672 |
|
ArrayList l = new ArrayList(); |
673 |
|
q.drainTo(l); |
674 |
< |
assertEquals(q.size(), 0); |
675 |
< |
assertEquals(l.size(), SIZE); |
674 |
> |
assertEquals(0, q.size()); |
675 |
> |
assertEquals(SIZE, l.size()); |
676 |
|
for (int i = 0; i < SIZE; ++i) { |
677 |
< |
assertEquals(l.get(i), i); |
677 |
> |
assertEquals(i, l.get(i)); |
678 |
|
} |
679 |
|
q.add(zero); |
680 |
|
q.add(one); |
683 |
|
assertTrue(q.contains(one)); |
684 |
|
l.clear(); |
685 |
|
q.drainTo(l); |
686 |
< |
assertEquals(q.size(), 0); |
687 |
< |
assertEquals(l.size(), 2); |
686 |
> |
assertEquals(0, q.size()); |
687 |
> |
assertEquals(2, l.size()); |
688 |
|
for (int i = 0; i < 2; ++i) { |
689 |
< |
assertEquals(l.get(i), i); |
689 |
> |
assertEquals(i, l.get(i)); |
690 |
|
} |
691 |
|
} |
692 |
|
|
702 |
|
ArrayList l = new ArrayList(); |
703 |
|
q.drainTo(l); |
704 |
|
assertTrue(l.size() >= SIZE); |
705 |
< |
for (int i = 0; i < SIZE; ++i) { |
706 |
< |
assertEquals(l.get(i), i); |
707 |
< |
} |
822 |
< |
awaitTermination(t, MEDIUM_DELAY_MS); |
705 |
> |
for (int i = 0; i < SIZE; ++i) |
706 |
> |
assertEquals(i, l.get(i)); |
707 |
> |
awaitTermination(t); |
708 |
|
assertTrue(q.size() + l.size() >= SIZE); |
709 |
|
} |
710 |
|
|
711 |
|
/** |
827 |
– |
* drainTo(null, n) throws NullPointerException |
828 |
– |
*/ |
829 |
– |
public void testDrainToNullN() { |
830 |
– |
LinkedTransferQueue q = populatedQueue(SIZE); |
831 |
– |
try { |
832 |
– |
q.drainTo(null, SIZE); |
833 |
– |
shouldThrow(); |
834 |
– |
} catch (NullPointerException success) {} |
835 |
– |
} |
836 |
– |
|
837 |
– |
/** |
838 |
– |
* drainTo(this, n) throws IllegalArgumentException |
839 |
– |
*/ |
840 |
– |
public void testDrainToSelfN() { |
841 |
– |
LinkedTransferQueue q = populatedQueue(SIZE); |
842 |
– |
try { |
843 |
– |
q.drainTo(q, SIZE); |
844 |
– |
shouldThrow(); |
845 |
– |
} catch (IllegalArgumentException success) {} |
846 |
– |
} |
847 |
– |
|
848 |
– |
/** |
712 |
|
* drainTo(c, n) empties first min(n, size) elements of queue into c |
713 |
|
*/ |
714 |
|
public void testDrainToN() { |
720 |
|
ArrayList l = new ArrayList(); |
721 |
|
q.drainTo(l, i); |
722 |
|
int k = (i < SIZE) ? i : SIZE; |
723 |
< |
assertEquals(l.size(), k); |
724 |
< |
assertEquals(q.size(), SIZE - k); |
725 |
< |
for (int j = 0; j < k; ++j) { |
726 |
< |
assertEquals(l.get(j), j); |
727 |
< |
} |
865 |
< |
while (q.poll() != null) |
866 |
< |
; |
723 |
> |
assertEquals(k, l.size()); |
724 |
> |
assertEquals(SIZE - k, q.size()); |
725 |
> |
for (int j = 0; j < k; ++j) |
726 |
> |
assertEquals(j, l.get(j)); |
727 |
> |
do {} while (q.poll() != null); |
728 |
|
} |
729 |
|
} |
730 |
|
|
734 |
|
*/ |
735 |
|
public void testWaitingConsumer() throws InterruptedException { |
736 |
|
final LinkedTransferQueue q = new LinkedTransferQueue(); |
737 |
< |
assertEquals(q.getWaitingConsumerCount(), 0); |
737 |
> |
assertEquals(0, q.getWaitingConsumerCount()); |
738 |
|
assertFalse(q.hasWaitingConsumer()); |
739 |
|
final CountDownLatch threadStarted = new CountDownLatch(1); |
740 |
|
|
741 |
|
Thread t = newStartedThread(new CheckedRunnable() { |
742 |
|
public void realRun() throws InterruptedException { |
743 |
|
threadStarted.countDown(); |
744 |
+ |
long startTime = System.nanoTime(); |
745 |
|
assertSame(one, q.poll(LONG_DELAY_MS, MILLISECONDS)); |
746 |
< |
assertEquals(q.getWaitingConsumerCount(), 0); |
746 |
> |
assertEquals(0, q.getWaitingConsumerCount()); |
747 |
|
assertFalse(q.hasWaitingConsumer()); |
748 |
+ |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
749 |
|
}}); |
750 |
|
|
751 |
|
threadStarted.await(); |
752 |
< |
waitForThreadToEnterWaitState(t, SMALL_DELAY_MS); |
753 |
< |
assertEquals(q.getWaitingConsumerCount(), 1); |
754 |
< |
assertTrue(q.hasWaitingConsumer()); |
752 |
> |
Callable<Boolean> oneConsumer |
753 |
> |
= new Callable<Boolean>() { public Boolean call() { |
754 |
> |
return q.hasWaitingConsumer() |
755 |
> |
&& q.getWaitingConsumerCount() == 1; }}; |
756 |
> |
waitForThreadToEnterWaitState(t, oneConsumer); |
757 |
|
|
758 |
|
assertTrue(q.offer(one)); |
759 |
< |
assertEquals(q.getWaitingConsumerCount(), 0); |
759 |
> |
assertEquals(0, q.getWaitingConsumerCount()); |
760 |
|
assertFalse(q.hasWaitingConsumer()); |
761 |
|
|
762 |
< |
awaitTermination(t, MEDIUM_DELAY_MS); |
762 |
> |
awaitTermination(t); |
763 |
|
} |
764 |
|
|
765 |
|
/** |
775 |
|
|
776 |
|
/** |
777 |
|
* transfer waits until a poll occurs. The transfered element |
778 |
< |
* is returned by this associated poll. |
778 |
> |
* is returned by the associated poll. |
779 |
|
*/ |
780 |
|
public void testTransfer2() throws InterruptedException { |
781 |
< |
final LinkedTransferQueue<Integer> q |
917 |
< |
= new LinkedTransferQueue<Integer>(); |
781 |
> |
final LinkedTransferQueue<Integer> q = new LinkedTransferQueue<>(); |
782 |
|
final CountDownLatch threadStarted = new CountDownLatch(1); |
783 |
|
|
784 |
|
Thread t = newStartedThread(new CheckedRunnable() { |
789 |
|
}}); |
790 |
|
|
791 |
|
threadStarted.await(); |
792 |
< |
waitForThreadToEnterWaitState(t, SMALL_DELAY_MS); |
793 |
< |
assertEquals(1, q.size()); |
792 |
> |
Callable<Boolean> oneElement |
793 |
> |
= new Callable<Boolean>() { public Boolean call() { |
794 |
> |
return !q.isEmpty() && q.size() == 1; }}; |
795 |
> |
waitForThreadToEnterWaitState(t, oneElement); |
796 |
> |
|
797 |
|
assertSame(five, q.poll()); |
798 |
|
checkEmpty(q); |
799 |
< |
awaitTermination(t, MEDIUM_DELAY_MS); |
799 |
> |
awaitTermination(t); |
800 |
|
} |
801 |
|
|
802 |
|
/** |
803 |
|
* transfer waits until a poll occurs, and then transfers in fifo order |
804 |
|
*/ |
805 |
|
public void testTransfer3() throws InterruptedException { |
806 |
< |
final LinkedTransferQueue<Integer> q |
940 |
< |
= new LinkedTransferQueue<Integer>(); |
806 |
> |
final LinkedTransferQueue<Integer> q = new LinkedTransferQueue<>(); |
807 |
|
|
808 |
|
Thread first = newStartedThread(new CheckedRunnable() { |
809 |
|
public void realRun() throws InterruptedException { |
810 |
|
q.transfer(four); |
811 |
< |
assertTrue(!q.contains(four)); |
811 |
> |
assertFalse(q.contains(four)); |
812 |
|
assertEquals(1, q.size()); |
813 |
|
}}); |
814 |
|
|
851 |
|
assertEquals(1, q.size()); |
852 |
|
assertTrue(q.offer(three)); |
853 |
|
assertSame(four, q.poll()); |
854 |
< |
awaitTermination(t, MEDIUM_DELAY_MS); |
854 |
> |
awaitTermination(t); |
855 |
|
} |
856 |
|
|
857 |
|
/** |
858 |
|
* transfer waits until a take occurs. The transfered element |
859 |
< |
* is returned by this associated take. |
859 |
> |
* is returned by the associated take. |
860 |
|
*/ |
861 |
|
public void testTransfer5() throws InterruptedException { |
862 |
< |
final LinkedTransferQueue<Integer> q |
997 |
< |
= new LinkedTransferQueue<Integer>(); |
862 |
> |
final LinkedTransferQueue<Integer> q = new LinkedTransferQueue<>(); |
863 |
|
|
864 |
|
Thread t = newStartedThread(new CheckedRunnable() { |
865 |
|
public void realRun() throws InterruptedException { |
873 |
|
assertEquals(1, q.size()); |
874 |
|
assertSame(four, q.take()); |
875 |
|
checkEmpty(q); |
876 |
< |
awaitTermination(t, MEDIUM_DELAY_MS); |
876 |
> |
awaitTermination(t); |
877 |
|
} |
878 |
|
|
879 |
|
/** |
880 |
|
* tryTransfer(null) throws NullPointerException |
881 |
|
*/ |
882 |
|
public void testTryTransfer1() { |
883 |
+ |
final LinkedTransferQueue q = new LinkedTransferQueue(); |
884 |
|
try { |
1019 |
– |
final LinkedTransferQueue q = new LinkedTransferQueue(); |
885 |
|
q.tryTransfer(null); |
886 |
|
shouldThrow(); |
887 |
|
} catch (NullPointerException success) {} |
915 |
|
assertTrue(q.tryTransfer(hotPotato)); |
916 |
|
}}); |
917 |
|
|
918 |
< |
assertSame(hotPotato, q.poll(MEDIUM_DELAY_MS, MILLISECONDS)); |
918 |
> |
long startTime = System.nanoTime(); |
919 |
> |
assertSame(hotPotato, q.poll(LONG_DELAY_MS, MILLISECONDS)); |
920 |
> |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
921 |
|
checkEmpty(q); |
922 |
< |
awaitTermination(t, MEDIUM_DELAY_MS); |
922 |
> |
awaitTermination(t); |
923 |
|
} |
924 |
|
|
925 |
|
/** |
941 |
|
|
942 |
|
assertSame(q.take(), hotPotato); |
943 |
|
checkEmpty(q); |
944 |
< |
awaitTermination(t, MEDIUM_DELAY_MS); |
944 |
> |
awaitTermination(t); |
945 |
|
} |
946 |
|
|
947 |
|
/** |
948 |
< |
* tryTransfer waits the amount given, and throws |
1082 |
< |
* InterruptedException when interrupted. |
948 |
> |
* tryTransfer blocks interruptibly if no takers |
949 |
|
*/ |
950 |
|
public void testTryTransfer5() throws InterruptedException { |
951 |
|
final LinkedTransferQueue q = new LinkedTransferQueue(); |
952 |
< |
final CountDownLatch threadStarted = new CountDownLatch(1); |
952 |
> |
final CountDownLatch pleaseInterrupt = new CountDownLatch(1); |
953 |
|
assertTrue(q.isEmpty()); |
954 |
|
|
955 |
|
Thread t = newStartedThread(new CheckedRunnable() { |
956 |
|
public void realRun() throws InterruptedException { |
957 |
< |
long t0 = System.nanoTime(); |
958 |
< |
threadStarted.countDown(); |
957 |
> |
long startTime = System.nanoTime(); |
958 |
> |
Thread.currentThread().interrupt(); |
959 |
> |
try { |
960 |
> |
q.tryTransfer(new Object(), LONG_DELAY_MS, MILLISECONDS); |
961 |
> |
shouldThrow(); |
962 |
> |
} catch (InterruptedException success) {} |
963 |
> |
assertFalse(Thread.interrupted()); |
964 |
> |
|
965 |
> |
pleaseInterrupt.countDown(); |
966 |
|
try { |
967 |
|
q.tryTransfer(new Object(), LONG_DELAY_MS, MILLISECONDS); |
968 |
|
shouldThrow(); |
969 |
|
} catch (InterruptedException success) {} |
970 |
< |
assertTrue(millisElapsedSince(t0) >= SHORT_DELAY_MS); |
971 |
< |
assertTrue(millisElapsedSince(t0) < MEDIUM_DELAY_MS); |
970 |
> |
assertFalse(Thread.interrupted()); |
971 |
> |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
972 |
|
}}); |
973 |
|
|
974 |
< |
threadStarted.await(); |
975 |
< |
while (q.isEmpty()) |
1103 |
< |
Thread.yield(); |
1104 |
< |
Thread.sleep(SHORT_DELAY_MS); |
974 |
> |
await(pleaseInterrupt); |
975 |
> |
assertThreadBlocks(t, Thread.State.TIMED_WAITING); |
976 |
|
t.interrupt(); |
977 |
< |
awaitTermination(t, MEDIUM_DELAY_MS); |
977 |
> |
awaitTermination(t); |
978 |
|
checkEmpty(q); |
979 |
|
} |
980 |
|
|
986 |
|
|
987 |
|
Thread t = newStartedThread(new CheckedRunnable() { |
988 |
|
public void realRun() throws InterruptedException { |
989 |
< |
long t0 = System.nanoTime(); |
989 |
> |
long startTime = System.nanoTime(); |
990 |
|
assertFalse(q.tryTransfer(new Object(), |
991 |
< |
SHORT_DELAY_MS, MILLISECONDS)); |
992 |
< |
assertTrue(millisElapsedSince(t0) >= SHORT_DELAY_MS); |
991 |
> |
timeoutMillis(), MILLISECONDS)); |
992 |
> |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
993 |
|
checkEmpty(q); |
994 |
|
}}); |
995 |
|
|
996 |
< |
awaitTermination(t, MEDIUM_DELAY_MS); |
996 |
> |
awaitTermination(t); |
997 |
|
checkEmpty(q); |
998 |
|
} |
999 |
|
|
1007 |
|
|
1008 |
|
Thread t = newStartedThread(new CheckedRunnable() { |
1009 |
|
public void realRun() throws InterruptedException { |
1010 |
< |
assertTrue(q.tryTransfer(five, MEDIUM_DELAY_MS, MILLISECONDS)); |
1010 |
> |
long startTime = System.nanoTime(); |
1011 |
> |
assertTrue(q.tryTransfer(five, LONG_DELAY_MS, MILLISECONDS)); |
1012 |
> |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
1013 |
|
checkEmpty(q); |
1014 |
|
}}); |
1015 |
|
|
1019 |
|
assertSame(four, q.poll()); |
1020 |
|
assertSame(five, q.poll()); |
1021 |
|
checkEmpty(q); |
1022 |
< |
awaitTermination(t, MEDIUM_DELAY_MS); |
1022 |
> |
awaitTermination(t); |
1023 |
|
} |
1024 |
|
|
1025 |
|
/** |
1030 |
|
final LinkedTransferQueue q = new LinkedTransferQueue(); |
1031 |
|
assertTrue(q.offer(four)); |
1032 |
|
assertEquals(1, q.size()); |
1033 |
< |
long t0 = System.nanoTime(); |
1034 |
< |
assertFalse(q.tryTransfer(five, SHORT_DELAY_MS, MILLISECONDS)); |
1035 |
< |
assertTrue(millisElapsedSince(t0) >= SHORT_DELAY_MS); |
1033 |
> |
long startTime = System.nanoTime(); |
1034 |
> |
assertFalse(q.tryTransfer(five, timeoutMillis(), MILLISECONDS)); |
1035 |
> |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
1036 |
|
assertEquals(1, q.size()); |
1037 |
|
assertSame(four, q.poll()); |
1038 |
|
assertNull(q.poll()); |
1040 |
|
} |
1041 |
|
|
1042 |
|
private LinkedTransferQueue<Integer> populatedQueue(int n) { |
1043 |
< |
LinkedTransferQueue<Integer> q = new LinkedTransferQueue<Integer>(); |
1043 |
> |
LinkedTransferQueue<Integer> q = new LinkedTransferQueue<>(); |
1044 |
|
checkEmpty(q); |
1045 |
|
for (int i = 0; i < n; i++) { |
1046 |
|
assertEquals(i, q.size()); |
1050 |
|
assertFalse(q.isEmpty()); |
1051 |
|
return q; |
1052 |
|
} |
1053 |
+ |
|
1054 |
+ |
/** |
1055 |
+ |
* remove(null), contains(null) always return false |
1056 |
+ |
*/ |
1057 |
+ |
public void testNeverContainsNull() { |
1058 |
+ |
Collection<?>[] qs = { |
1059 |
+ |
new LinkedTransferQueue<Object>(), |
1060 |
+ |
populatedQueue(2), |
1061 |
+ |
}; |
1062 |
+ |
|
1063 |
+ |
for (Collection<?> q : qs) { |
1064 |
+ |
assertFalse(q.contains(null)); |
1065 |
+ |
assertFalse(q.remove(null)); |
1066 |
+ |
} |
1067 |
+ |
} |
1068 |
|
} |