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/* |
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* Written by members of JCP JSR-166 Expert Group and released to the |
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* public domain. Use, modify, and redistribute this code in any way |
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* without acknowledgement. Other contributors include Andrew Wright, |
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* Jeffrey Hayes, Pat Fischer, Mike Judd. |
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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/publicdomain/zero/1.0/ |
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* Other contributors include Andrew Wright, Jeffrey Hayes, |
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* Pat Fisher, Mike Judd. |
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*/ |
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import static java.util.concurrent.TimeUnit.MILLISECONDS; |
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|
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import junit.framework.*; |
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import java.util.*; |
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import java.util.concurrent.*; |
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import java.io.*; |
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import java.util.ArrayList; |
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import java.util.Arrays; |
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import java.util.Collection; |
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import java.util.Iterator; |
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import java.util.NoSuchElementException; |
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import java.util.Queue; |
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import java.util.concurrent.ArrayBlockingQueue; |
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import java.util.concurrent.BlockingQueue; |
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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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|
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import junit.framework.Test; |
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|
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public class ArrayBlockingQueueTest extends JSR166TestCase { |
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|
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public static class Fair extends BlockingQueueTest { |
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protected BlockingQueue emptyCollection() { |
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return new ArrayBlockingQueue(SIZE, true); |
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} |
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} |
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|
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public static class NonFair extends BlockingQueueTest { |
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protected BlockingQueue emptyCollection() { |
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return new ArrayBlockingQueue(SIZE, false); |
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} |
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} |
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|
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public static void main(String[] args) { |
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junit.textui.TestRunner.run (suite()); |
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junit.textui.TestRunner.run(suite()); |
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} |
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|
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public static Test suite() { |
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return new TestSuite(ArrayBlockingQueueTest.class); |
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return newTestSuite(ArrayBlockingQueueTest.class, |
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new Fair().testSuite(), |
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new NonFair().testSuite()); |
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} |
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|
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/** |
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* Create a queue of given size containing consecutive |
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* Returns a new queue of given size containing consecutive |
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* Integers 0 ... n. |
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*/ |
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private ArrayBlockingQueue populatedQueue(int n) { |
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ArrayBlockingQueue q = new ArrayBlockingQueue(n); |
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private ArrayBlockingQueue<Integer> populatedQueue(int n) { |
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ArrayBlockingQueue<Integer> q = new ArrayBlockingQueue<Integer>(n); |
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assertTrue(q.isEmpty()); |
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for(int i = 0; i < n; i++) |
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assertTrue(q.offer(new Integer(i))); |
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for (int i = 0; i < n; i++) |
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assertTrue(q.offer(new Integer(i))); |
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assertFalse(q.isEmpty()); |
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assertEquals(0, q.remainingCapacity()); |
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assertEquals(n, q.size()); |
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assertEquals(n, q.size()); |
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return q; |
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} |
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|
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|
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/** |
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* |
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* A new queue has the indicated capacity |
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*/ |
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public void testConstructor1() { |
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assertEquals(SIZE, new ArrayBlockingQueue(SIZE).remainingCapacity()); |
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} |
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|
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/** |
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* |
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* Constructor throws IAE if capacity argument nonpositive |
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*/ |
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public void testConstructor2() { |
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try { |
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ArrayBlockingQueue q = new ArrayBlockingQueue(0); |
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new ArrayBlockingQueue(0); |
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shouldThrow(); |
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} |
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catch (IllegalArgumentException success) {} |
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} catch (IllegalArgumentException success) {} |
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} |
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|
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/** |
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* |
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* Initializing from null Collection throws NPE |
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*/ |
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public void testConstructor3() { |
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|
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try { |
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ArrayBlockingQueue q = new ArrayBlockingQueue(1, true, null); |
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new ArrayBlockingQueue(1, true, null); |
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shouldThrow(); |
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} |
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catch (NullPointerException success) {} |
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} catch (NullPointerException success) {} |
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} |
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|
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/** |
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* |
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* Initializing from Collection of null elements throws NPE |
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*/ |
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public void testConstructor4() { |
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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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ArrayBlockingQueue q = new ArrayBlockingQueue(SIZE, false, Arrays.asList(ints)); |
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new ArrayBlockingQueue(SIZE, false, elements); |
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shouldThrow(); |
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} |
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catch (NullPointerException success) {} |
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} catch (NullPointerException success) {} |
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} |
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|
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/** |
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* |
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* Initializing from Collection with some null elements throws NPE |
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*/ |
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public void testConstructor5() { |
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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] = new Integer(i); |
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ArrayBlockingQueue q = new ArrayBlockingQueue(SIZE, false, Arrays.asList(ints)); |
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new ArrayBlockingQueue(SIZE, false, Arrays.asList(ints)); |
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shouldThrow(); |
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} |
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catch (NullPointerException success) {} |
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} catch (NullPointerException success) {} |
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} |
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|
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/** |
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* |
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* Initializing from too large collection throws IAE |
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*/ |
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public void testConstructor6() { |
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Integer[] ints = new Integer[SIZE]; |
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for (int i = 0; i < SIZE; ++i) |
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ints[i] = i; |
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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; ++i) |
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ints[i] = new Integer(i); |
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ArrayBlockingQueue q = new ArrayBlockingQueue(1, false, Arrays.asList(ints)); |
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new ArrayBlockingQueue(SIZE - 1, false, elements); |
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shouldThrow(); |
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} |
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catch (IllegalArgumentException success) {} |
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} catch (IllegalArgumentException success) {} |
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} |
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|
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/** |
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* |
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* Queue contains all elements of collection used to initialize |
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*/ |
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public void testConstructor7() { |
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try { |
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Integer[] ints = new Integer[SIZE]; |
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for (int i = 0; i < SIZE; ++i) |
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ints[i] = new Integer(i); |
138 |
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ArrayBlockingQueue q = new ArrayBlockingQueue(SIZE, true, Arrays.asList(ints)); |
139 |
< |
for (int i = 0; i < SIZE; ++i) |
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assertEquals(ints[i], q.poll()); |
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} |
119 |
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finally {} |
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Integer[] ints = new Integer[SIZE]; |
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> |
for (int i = 0; i < SIZE; ++i) |
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ints[i] = i; |
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Collection<Integer> elements = Arrays.asList(ints); |
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> |
ArrayBlockingQueue q = new ArrayBlockingQueue(SIZE, true, elements); |
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> |
for (int i = 0; i < SIZE; ++i) |
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> |
assertEquals(ints[i], q.poll()); |
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} |
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|
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/** |
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* |
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> |
* Queue transitions from empty to full when elements added |
145 |
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*/ |
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public void testEmptyFull() { |
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ArrayBlockingQueue q = new ArrayBlockingQueue(2); |
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} |
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|
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/** |
159 |
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* |
159 |
> |
* remainingCapacity decreases on add, increases on remove |
160 |
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*/ |
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public void testRemainingCapacity() { |
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ArrayBlockingQueue q = populatedQueue(SIZE); |
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} |
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|
175 |
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/** |
176 |
< |
* |
156 |
< |
*/ |
157 |
< |
public void testOfferNull() { |
158 |
< |
try { |
159 |
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ArrayBlockingQueue q = new ArrayBlockingQueue(1); |
160 |
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q.offer(null); |
161 |
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shouldThrow(); |
162 |
< |
} catch (NullPointerException success) { } |
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} |
164 |
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|
165 |
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/** |
166 |
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* |
176 |
> |
* Offer succeeds if not full; fails if full |
177 |
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*/ |
178 |
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public void testOffer() { |
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ArrayBlockingQueue q = new ArrayBlockingQueue(1); |
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} |
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|
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/** |
185 |
< |
* |
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> |
* add succeeds if not full; throws ISE if full |
186 |
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*/ |
187 |
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public void testAdd() { |
188 |
< |
try { |
188 |
> |
try { |
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ArrayBlockingQueue q = new ArrayBlockingQueue(SIZE); |
190 |
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for (int i = 0; i < SIZE; ++i) { |
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assertTrue(q.add(new Integer(i))); |
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} |
193 |
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assertEquals(0, q.remainingCapacity()); |
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q.add(new Integer(SIZE)); |
185 |
– |
} catch (IllegalStateException success){ |
186 |
– |
} |
187 |
– |
} |
188 |
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|
189 |
– |
/** |
190 |
– |
* |
191 |
– |
*/ |
192 |
– |
public void testAddAll1() { |
193 |
– |
try { |
194 |
– |
ArrayBlockingQueue q = new ArrayBlockingQueue(1); |
195 |
– |
q.addAll(null); |
195 |
|
shouldThrow(); |
196 |
< |
} |
198 |
< |
catch (NullPointerException success) {} |
196 |
> |
} catch (IllegalStateException success) {} |
197 |
|
} |
198 |
+ |
|
199 |
|
/** |
200 |
< |
* |
200 |
> |
* addAll(this) throws IAE |
201 |
|
*/ |
202 |
< |
public void testAddAll2() { |
202 |
> |
public void testAddAllSelf() { |
203 |
|
try { |
204 |
< |
ArrayBlockingQueue q = new ArrayBlockingQueue(SIZE); |
205 |
< |
Integer[] ints = new Integer[SIZE]; |
207 |
< |
q.addAll(Arrays.asList(ints)); |
204 |
> |
ArrayBlockingQueue q = populatedQueue(SIZE); |
205 |
> |
q.addAll(q); |
206 |
|
shouldThrow(); |
207 |
< |
} |
210 |
< |
catch (NullPointerException success) {} |
207 |
> |
} catch (IllegalArgumentException success) {} |
208 |
|
} |
209 |
+ |
|
210 |
|
/** |
211 |
< |
* |
211 |
> |
* addAll of a collection with any null elements throws NPE after |
212 |
> |
* possibly adding some elements |
213 |
|
*/ |
214 |
|
public void testAddAll3() { |
215 |
|
try { |
219 |
|
ints[i] = new Integer(i); |
220 |
|
q.addAll(Arrays.asList(ints)); |
221 |
|
shouldThrow(); |
222 |
< |
} |
224 |
< |
catch (NullPointerException success) {} |
222 |
> |
} catch (NullPointerException success) {} |
223 |
|
} |
224 |
+ |
|
225 |
|
/** |
226 |
< |
* |
226 |
> |
* addAll throws ISE if not enough room |
227 |
|
*/ |
228 |
|
public void testAddAll4() { |
229 |
|
try { |
233 |
|
ints[i] = new Integer(i); |
234 |
|
q.addAll(Arrays.asList(ints)); |
235 |
|
shouldThrow(); |
236 |
< |
} |
238 |
< |
catch (IllegalStateException success) {} |
236 |
> |
} catch (IllegalStateException success) {} |
237 |
|
} |
238 |
+ |
|
239 |
|
/** |
240 |
< |
* |
240 |
> |
* Queue contains all elements, in traversal order, of successful addAll |
241 |
|
*/ |
242 |
|
public void testAddAll5() { |
243 |
< |
try { |
244 |
< |
Integer[] empty = new Integer[0]; |
245 |
< |
Integer[] ints = new Integer[SIZE]; |
246 |
< |
for (int i = 0; i < SIZE; ++i) |
247 |
< |
ints[i] = new Integer(i); |
248 |
< |
ArrayBlockingQueue q = new ArrayBlockingQueue(SIZE); |
249 |
< |
assertFalse(q.addAll(Arrays.asList(empty))); |
250 |
< |
assertTrue(q.addAll(Arrays.asList(ints))); |
251 |
< |
for (int i = 0; i < SIZE; ++i) |
253 |
< |
assertEquals(ints[i], q.poll()); |
254 |
< |
} |
255 |
< |
finally {} |
243 |
> |
Integer[] empty = new Integer[0]; |
244 |
> |
Integer[] ints = new Integer[SIZE]; |
245 |
> |
for (int i = 0; i < SIZE; ++i) |
246 |
> |
ints[i] = new Integer(i); |
247 |
> |
ArrayBlockingQueue q = new ArrayBlockingQueue(SIZE); |
248 |
> |
assertFalse(q.addAll(Arrays.asList(empty))); |
249 |
> |
assertTrue(q.addAll(Arrays.asList(ints))); |
250 |
> |
for (int i = 0; i < SIZE; ++i) |
251 |
> |
assertEquals(ints[i], q.poll()); |
252 |
|
} |
253 |
|
|
254 |
|
/** |
255 |
< |
* |
255 |
> |
* all elements successfully put are contained |
256 |
|
*/ |
257 |
< |
public void testPutNull() { |
258 |
< |
try { |
259 |
< |
ArrayBlockingQueue q = new ArrayBlockingQueue(SIZE); |
260 |
< |
q.put(null); |
261 |
< |
shouldThrow(); |
262 |
< |
} |
267 |
< |
catch (NullPointerException success){ |
268 |
< |
} |
269 |
< |
catch (InterruptedException ie) { |
270 |
< |
unexpectedException(); |
271 |
< |
} |
272 |
< |
} |
273 |
< |
|
274 |
< |
/** |
275 |
< |
* |
276 |
< |
*/ |
277 |
< |
public void testPut() { |
278 |
< |
try { |
279 |
< |
ArrayBlockingQueue q = new ArrayBlockingQueue(SIZE); |
280 |
< |
for (int i = 0; i < SIZE; ++i) { |
281 |
< |
Integer I = new Integer(i); |
282 |
< |
q.put(I); |
283 |
< |
assertTrue(q.contains(I)); |
284 |
< |
} |
285 |
< |
assertEquals(0, q.remainingCapacity()); |
286 |
< |
} |
287 |
< |
catch (InterruptedException ie) { |
288 |
< |
unexpectedException(); |
257 |
> |
public void testPut() throws InterruptedException { |
258 |
> |
ArrayBlockingQueue q = new ArrayBlockingQueue(SIZE); |
259 |
> |
for (int i = 0; i < SIZE; ++i) { |
260 |
> |
Integer I = new Integer(i); |
261 |
> |
q.put(I); |
262 |
> |
assertTrue(q.contains(I)); |
263 |
|
} |
264 |
+ |
assertEquals(0, q.remainingCapacity()); |
265 |
|
} |
266 |
|
|
267 |
|
/** |
268 |
< |
* |
268 |
> |
* put blocks interruptibly if full |
269 |
|
*/ |
270 |
< |
public void testBlockingPut() { |
271 |
< |
Thread t = new Thread(new Runnable() { |
272 |
< |
public void run() { |
273 |
< |
int added = 0; |
274 |
< |
try { |
275 |
< |
ArrayBlockingQueue q = new ArrayBlockingQueue(SIZE); |
276 |
< |
for (int i = 0; i < SIZE; ++i) { |
277 |
< |
q.put(new Integer(i)); |
278 |
< |
++added; |
279 |
< |
} |
280 |
< |
q.put(new Integer(SIZE)); |
281 |
< |
threadShouldThrow(); |
282 |
< |
} catch (InterruptedException ie){ |
283 |
< |
threadAssertEquals(added, SIZE); |
284 |
< |
} |
285 |
< |
}}); |
286 |
< |
try { |
287 |
< |
t.start(); |
288 |
< |
Thread.sleep(SHORT_DELAY_MS); |
289 |
< |
t.interrupt(); |
290 |
< |
t.join(); |
291 |
< |
} |
292 |
< |
catch (InterruptedException ie) { |
293 |
< |
unexpectedException(); |
294 |
< |
} |
270 |
> |
public void testBlockingPut() throws InterruptedException { |
271 |
> |
final ArrayBlockingQueue q = new ArrayBlockingQueue(SIZE); |
272 |
> |
final CountDownLatch pleaseInterrupt = new CountDownLatch(1); |
273 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
274 |
> |
public void realRun() throws InterruptedException { |
275 |
> |
for (int i = 0; i < SIZE; ++i) |
276 |
> |
q.put(i); |
277 |
> |
assertEquals(SIZE, q.size()); |
278 |
> |
assertEquals(0, q.remainingCapacity()); |
279 |
> |
|
280 |
> |
Thread.currentThread().interrupt(); |
281 |
> |
try { |
282 |
> |
q.put(99); |
283 |
> |
shouldThrow(); |
284 |
> |
} catch (InterruptedException success) {} |
285 |
> |
assertFalse(Thread.interrupted()); |
286 |
> |
|
287 |
> |
pleaseInterrupt.countDown(); |
288 |
> |
try { |
289 |
> |
q.put(99); |
290 |
> |
shouldThrow(); |
291 |
> |
} catch (InterruptedException success) {} |
292 |
> |
assertFalse(Thread.interrupted()); |
293 |
> |
}}); |
294 |
> |
|
295 |
> |
await(pleaseInterrupt); |
296 |
> |
assertThreadStaysAlive(t); |
297 |
> |
t.interrupt(); |
298 |
> |
awaitTermination(t); |
299 |
> |
assertEquals(SIZE, q.size()); |
300 |
> |
assertEquals(0, q.remainingCapacity()); |
301 |
|
} |
302 |
|
|
303 |
|
/** |
304 |
< |
* |
304 |
> |
* put blocks interruptibly waiting for take when full |
305 |
|
*/ |
306 |
< |
public void testPutWithTake() { |
307 |
< |
final ArrayBlockingQueue q = new ArrayBlockingQueue(2); |
308 |
< |
Thread t = new Thread(new Runnable() { |
309 |
< |
public void run() { |
310 |
< |
int added = 0; |
311 |
< |
try { |
312 |
< |
q.put(new Object()); |
313 |
< |
++added; |
314 |
< |
q.put(new Object()); |
315 |
< |
++added; |
316 |
< |
q.put(new Object()); |
317 |
< |
++added; |
318 |
< |
q.put(new Object()); |
319 |
< |
++added; |
320 |
< |
threadShouldThrow(); |
321 |
< |
} catch (InterruptedException e){ |
322 |
< |
threadAssertTrue(added >= 2); |
323 |
< |
} |
324 |
< |
} |
325 |
< |
}); |
326 |
< |
try { |
327 |
< |
t.start(); |
328 |
< |
Thread.sleep(SHORT_DELAY_MS); |
329 |
< |
q.take(); |
330 |
< |
t.interrupt(); |
331 |
< |
t.join(); |
332 |
< |
} catch (Exception e){ |
333 |
< |
unexpectedException(); |
334 |
< |
} |
306 |
> |
public void testPutWithTake() throws InterruptedException { |
307 |
> |
final int capacity = 2; |
308 |
> |
final ArrayBlockingQueue q = new ArrayBlockingQueue(capacity); |
309 |
> |
final CountDownLatch pleaseTake = new CountDownLatch(1); |
310 |
> |
final CountDownLatch pleaseInterrupt = new CountDownLatch(1); |
311 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
312 |
> |
public void realRun() throws InterruptedException { |
313 |
> |
for (int i = 0; i < capacity; i++) |
314 |
> |
q.put(i); |
315 |
> |
pleaseTake.countDown(); |
316 |
> |
q.put(86); |
317 |
> |
|
318 |
> |
pleaseInterrupt.countDown(); |
319 |
> |
try { |
320 |
> |
q.put(99); |
321 |
> |
shouldThrow(); |
322 |
> |
} catch (InterruptedException success) {} |
323 |
> |
assertFalse(Thread.interrupted()); |
324 |
> |
}}); |
325 |
> |
|
326 |
> |
await(pleaseTake); |
327 |
> |
assertEquals(0, q.remainingCapacity()); |
328 |
> |
assertEquals(0, q.take()); |
329 |
> |
|
330 |
> |
await(pleaseInterrupt); |
331 |
> |
assertThreadStaysAlive(t); |
332 |
> |
t.interrupt(); |
333 |
> |
awaitTermination(t); |
334 |
> |
assertEquals(0, q.remainingCapacity()); |
335 |
|
} |
336 |
|
|
337 |
|
/** |
338 |
< |
* |
338 |
> |
* timed offer times out if full and elements not taken |
339 |
|
*/ |
340 |
< |
public void testTimedOffer() { |
340 |
> |
public void testTimedOffer() throws InterruptedException { |
341 |
|
final ArrayBlockingQueue q = new ArrayBlockingQueue(2); |
342 |
< |
Thread t = new Thread(new Runnable() { |
343 |
< |
public void run() { |
344 |
< |
try { |
345 |
< |
q.put(new Object()); |
346 |
< |
q.put(new Object()); |
347 |
< |
threadAssertFalse(q.offer(new Object(), SHORT_DELAY_MS/2, TimeUnit.MILLISECONDS)); |
348 |
< |
q.offer(new Object(), LONG_DELAY_MS, TimeUnit.MILLISECONDS); |
349 |
< |
threadShouldThrow(); |
350 |
< |
} catch (InterruptedException success){} |
351 |
< |
} |
352 |
< |
}); |
353 |
< |
|
354 |
< |
try { |
355 |
< |
t.start(); |
375 |
< |
Thread.sleep(SHORT_DELAY_MS); |
376 |
< |
t.interrupt(); |
377 |
< |
t.join(); |
378 |
< |
} catch (Exception e){ |
379 |
< |
unexpectedException(); |
380 |
< |
} |
381 |
< |
} |
342 |
> |
final CountDownLatch pleaseInterrupt = new CountDownLatch(1); |
343 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
344 |
> |
public void realRun() throws InterruptedException { |
345 |
> |
q.put(new Object()); |
346 |
> |
q.put(new Object()); |
347 |
> |
long startTime = System.nanoTime(); |
348 |
> |
assertFalse(q.offer(new Object(), timeoutMillis(), MILLISECONDS)); |
349 |
> |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
350 |
> |
pleaseInterrupt.countDown(); |
351 |
> |
try { |
352 |
> |
q.offer(new Object(), 2 * LONG_DELAY_MS, MILLISECONDS); |
353 |
> |
shouldThrow(); |
354 |
> |
} catch (InterruptedException success) {} |
355 |
> |
}}); |
356 |
|
|
357 |
< |
/** |
358 |
< |
* |
359 |
< |
*/ |
360 |
< |
public void testTake() { |
387 |
< |
try { |
388 |
< |
ArrayBlockingQueue q = populatedQueue(SIZE); |
389 |
< |
for (int i = 0; i < SIZE; ++i) { |
390 |
< |
assertEquals(i, ((Integer)q.take()).intValue()); |
391 |
< |
} |
392 |
< |
} catch (InterruptedException e){ |
393 |
< |
unexpectedException(); |
394 |
< |
} |
357 |
> |
await(pleaseInterrupt); |
358 |
> |
assertThreadStaysAlive(t); |
359 |
> |
t.interrupt(); |
360 |
> |
awaitTermination(t); |
361 |
|
} |
362 |
|
|
363 |
|
/** |
364 |
< |
* |
364 |
> |
* take retrieves elements in FIFO order |
365 |
|
*/ |
366 |
< |
public void testTakeFromEmpty() { |
367 |
< |
final ArrayBlockingQueue q = new ArrayBlockingQueue(2); |
368 |
< |
Thread t = new Thread(new Runnable() { |
369 |
< |
public void run() { |
404 |
< |
try { |
405 |
< |
q.take(); |
406 |
< |
threadShouldThrow(); |
407 |
< |
} catch (InterruptedException success){ } |
408 |
< |
} |
409 |
< |
}); |
410 |
< |
try { |
411 |
< |
t.start(); |
412 |
< |
Thread.sleep(SHORT_DELAY_MS); |
413 |
< |
t.interrupt(); |
414 |
< |
t.join(); |
415 |
< |
} catch (Exception e){ |
416 |
< |
unexpectedException(); |
366 |
> |
public void testTake() throws InterruptedException { |
367 |
> |
ArrayBlockingQueue q = populatedQueue(SIZE); |
368 |
> |
for (int i = 0; i < SIZE; ++i) { |
369 |
> |
assertEquals(i, q.take()); |
370 |
|
} |
371 |
|
} |
372 |
|
|
373 |
|
/** |
374 |
< |
* |
374 |
> |
* Take removes existing elements until empty, then blocks interruptibly |
375 |
|
*/ |
376 |
< |
public void testBlockingTake() { |
377 |
< |
Thread t = new Thread(new Runnable() { |
378 |
< |
public void run() { |
379 |
< |
try { |
380 |
< |
ArrayBlockingQueue q = populatedQueue(SIZE); |
381 |
< |
for (int i = 0; i < SIZE; ++i) { |
382 |
< |
threadAssertEquals(i, ((Integer)q.take()).intValue()); |
383 |
< |
} |
384 |
< |
q.take(); |
385 |
< |
threadShouldThrow(); |
386 |
< |
} catch (InterruptedException success){ |
387 |
< |
} |
388 |
< |
}}); |
389 |
< |
try { |
390 |
< |
t.start(); |
438 |
< |
Thread.sleep(SHORT_DELAY_MS); |
439 |
< |
t.interrupt(); |
440 |
< |
t.join(); |
441 |
< |
} |
442 |
< |
catch (InterruptedException ie) { |
443 |
< |
unexpectedException(); |
444 |
< |
} |
445 |
< |
} |
376 |
> |
public void testBlockingTake() throws InterruptedException { |
377 |
> |
final ArrayBlockingQueue q = populatedQueue(SIZE); |
378 |
> |
final CountDownLatch pleaseInterrupt = new CountDownLatch(1); |
379 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
380 |
> |
public void realRun() throws InterruptedException { |
381 |
> |
for (int i = 0; i < SIZE; ++i) { |
382 |
> |
assertEquals(i, q.take()); |
383 |
> |
} |
384 |
> |
|
385 |
> |
Thread.currentThread().interrupt(); |
386 |
> |
try { |
387 |
> |
q.take(); |
388 |
> |
shouldThrow(); |
389 |
> |
} catch (InterruptedException success) {} |
390 |
> |
assertFalse(Thread.interrupted()); |
391 |
|
|
392 |
+ |
pleaseInterrupt.countDown(); |
393 |
+ |
try { |
394 |
+ |
q.take(); |
395 |
+ |
shouldThrow(); |
396 |
+ |
} catch (InterruptedException success) {} |
397 |
+ |
assertFalse(Thread.interrupted()); |
398 |
+ |
}}); |
399 |
+ |
|
400 |
+ |
await(pleaseInterrupt); |
401 |
+ |
assertThreadStaysAlive(t); |
402 |
+ |
t.interrupt(); |
403 |
+ |
awaitTermination(t); |
404 |
+ |
} |
405 |
|
|
406 |
|
/** |
407 |
< |
* |
407 |
> |
* poll succeeds unless empty |
408 |
|
*/ |
409 |
|
public void testPoll() { |
410 |
|
ArrayBlockingQueue q = populatedQueue(SIZE); |
411 |
|
for (int i = 0; i < SIZE; ++i) { |
412 |
< |
assertEquals(i, ((Integer)q.poll()).intValue()); |
412 |
> |
assertEquals(i, q.poll()); |
413 |
|
} |
414 |
< |
assertNull(q.poll()); |
414 |
> |
assertNull(q.poll()); |
415 |
|
} |
416 |
|
|
417 |
|
/** |
418 |
< |
* |
418 |
> |
* timed poll with zero timeout succeeds when non-empty, else times out |
419 |
|
*/ |
420 |
< |
public void testTimedPoll0() { |
421 |
< |
try { |
422 |
< |
ArrayBlockingQueue q = populatedQueue(SIZE); |
423 |
< |
for (int i = 0; i < SIZE; ++i) { |
424 |
< |
assertEquals(i, ((Integer)q.poll(0, TimeUnit.MILLISECONDS)).intValue()); |
425 |
< |
} |
426 |
< |
assertNull(q.poll(0, TimeUnit.MILLISECONDS)); |
469 |
< |
} catch (InterruptedException e){ |
470 |
< |
unexpectedException(); |
471 |
< |
} |
472 |
< |
} |
473 |
< |
|
474 |
< |
/** |
475 |
< |
* |
476 |
< |
*/ |
477 |
< |
public void testTimedPoll() { |
478 |
< |
try { |
479 |
< |
ArrayBlockingQueue q = populatedQueue(SIZE); |
480 |
< |
for (int i = 0; i < SIZE; ++i) { |
481 |
< |
assertEquals(i, ((Integer)q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS)).intValue()); |
482 |
< |
} |
483 |
< |
assertNull(q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS)); |
484 |
< |
} catch (InterruptedException e){ |
485 |
< |
unexpectedException(); |
486 |
< |
} |
420 |
> |
public void testTimedPoll0() throws InterruptedException { |
421 |
> |
ArrayBlockingQueue q = populatedQueue(SIZE); |
422 |
> |
for (int i = 0; i < SIZE; ++i) { |
423 |
> |
assertEquals(i, q.poll(0, MILLISECONDS)); |
424 |
> |
} |
425 |
> |
assertNull(q.poll(0, MILLISECONDS)); |
426 |
> |
checkEmpty(q); |
427 |
|
} |
428 |
|
|
429 |
|
/** |
430 |
< |
* |
430 |
> |
* timed poll with nonzero timeout succeeds when non-empty, else times out |
431 |
|
*/ |
432 |
< |
public void testInterruptedTimedPoll() { |
433 |
< |
Thread t = new Thread(new Runnable() { |
434 |
< |
public void run() { |
435 |
< |
try { |
436 |
< |
ArrayBlockingQueue q = populatedQueue(SIZE); |
437 |
< |
for (int i = 0; i < SIZE; ++i) { |
438 |
< |
threadAssertEquals(i, ((Integer)q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS)).intValue()); |
439 |
< |
} |
440 |
< |
threadAssertNull(q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS)); |
441 |
< |
} catch (InterruptedException success){ |
442 |
< |
} |
503 |
< |
}}); |
504 |
< |
try { |
505 |
< |
t.start(); |
506 |
< |
Thread.sleep(SHORT_DELAY_MS); |
507 |
< |
t.interrupt(); |
508 |
< |
t.join(); |
509 |
< |
} |
510 |
< |
catch (InterruptedException ie) { |
511 |
< |
unexpectedException(); |
512 |
< |
} |
432 |
> |
public void testTimedPoll() throws InterruptedException { |
433 |
> |
ArrayBlockingQueue q = populatedQueue(SIZE); |
434 |
> |
for (int i = 0; i < SIZE; ++i) { |
435 |
> |
long startTime = System.nanoTime(); |
436 |
> |
assertEquals(i, q.poll(LONG_DELAY_MS, MILLISECONDS)); |
437 |
> |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
438 |
> |
} |
439 |
> |
long startTime = System.nanoTime(); |
440 |
> |
assertNull(q.poll(timeoutMillis(), MILLISECONDS)); |
441 |
> |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
442 |
> |
checkEmpty(q); |
443 |
|
} |
444 |
|
|
445 |
|
/** |
446 |
< |
* |
447 |
< |
*/ |
448 |
< |
public void testTimedPollWithOffer() { |
449 |
< |
final ArrayBlockingQueue q = new ArrayBlockingQueue(2); |
450 |
< |
Thread t = new Thread(new Runnable() { |
451 |
< |
public void run() { |
452 |
< |
try { |
453 |
< |
threadAssertNull(q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS)); |
454 |
< |
q.poll(LONG_DELAY_MS, TimeUnit.MILLISECONDS); |
455 |
< |
q.poll(LONG_DELAY_MS, TimeUnit.MILLISECONDS); |
456 |
< |
threadShouldThrow(); |
457 |
< |
} catch (InterruptedException success) { } |
446 |
> |
* Interrupted timed poll throws InterruptedException instead of |
447 |
> |
* returning timeout status |
448 |
> |
*/ |
449 |
> |
public void testInterruptedTimedPoll() throws InterruptedException { |
450 |
> |
final BlockingQueue<Integer> q = populatedQueue(SIZE); |
451 |
> |
final CountDownLatch aboutToWait = new CountDownLatch(1); |
452 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
453 |
> |
public void realRun() throws InterruptedException { |
454 |
> |
for (int i = 0; i < SIZE; ++i) { |
455 |
> |
long t0 = System.nanoTime(); |
456 |
> |
assertEquals(i, (int) q.poll(LONG_DELAY_MS, MILLISECONDS)); |
457 |
> |
assertTrue(millisElapsedSince(t0) < SMALL_DELAY_MS); |
458 |
|
} |
459 |
< |
}); |
460 |
< |
try { |
461 |
< |
t.start(); |
462 |
< |
Thread.sleep(SMALL_DELAY_MS); |
463 |
< |
assertTrue(q.offer(zero, SHORT_DELAY_MS, TimeUnit.MILLISECONDS)); |
464 |
< |
t.interrupt(); |
465 |
< |
t.join(); |
466 |
< |
} catch (Exception e){ |
467 |
< |
unexpectedException(); |
538 |
< |
} |
539 |
< |
} |
459 |
> |
long t0 = System.nanoTime(); |
460 |
> |
aboutToWait.countDown(); |
461 |
> |
try { |
462 |
> |
q.poll(MEDIUM_DELAY_MS, MILLISECONDS); |
463 |
> |
shouldThrow(); |
464 |
> |
} catch (InterruptedException success) { |
465 |
> |
assertTrue(millisElapsedSince(t0) < MEDIUM_DELAY_MS); |
466 |
> |
} |
467 |
> |
}}); |
468 |
|
|
469 |
+ |
aboutToWait.await(); |
470 |
+ |
waitForThreadToEnterWaitState(t, SMALL_DELAY_MS); |
471 |
+ |
t.interrupt(); |
472 |
+ |
awaitTermination(t, MEDIUM_DELAY_MS); |
473 |
+ |
checkEmpty(q); |
474 |
+ |
} |
475 |
|
|
476 |
|
/** |
477 |
< |
* |
477 |
> |
* peek returns next element, or null if empty |
478 |
|
*/ |
479 |
|
public void testPeek() { |
480 |
|
ArrayBlockingQueue q = populatedQueue(SIZE); |
481 |
|
for (int i = 0; i < SIZE; ++i) { |
482 |
< |
assertEquals(i, ((Integer)q.peek()).intValue()); |
483 |
< |
q.poll(); |
482 |
> |
assertEquals(i, q.peek()); |
483 |
> |
assertEquals(i, q.poll()); |
484 |
|
assertTrue(q.peek() == null || |
485 |
< |
i != ((Integer)q.peek()).intValue()); |
485 |
> |
!q.peek().equals(i)); |
486 |
|
} |
487 |
< |
assertNull(q.peek()); |
487 |
> |
assertNull(q.peek()); |
488 |
|
} |
489 |
|
|
490 |
|
/** |
491 |
< |
* |
491 |
> |
* element returns next element, or throws NSEE if empty |
492 |
|
*/ |
493 |
|
public void testElement() { |
494 |
|
ArrayBlockingQueue q = populatedQueue(SIZE); |
495 |
|
for (int i = 0; i < SIZE; ++i) { |
496 |
< |
assertEquals(i, ((Integer)q.element()).intValue()); |
497 |
< |
q.poll(); |
496 |
> |
assertEquals(i, q.element()); |
497 |
> |
assertEquals(i, q.poll()); |
498 |
|
} |
499 |
|
try { |
500 |
|
q.element(); |
501 |
|
shouldThrow(); |
502 |
< |
} |
569 |
< |
catch (NoSuchElementException success) {} |
502 |
> |
} catch (NoSuchElementException success) {} |
503 |
|
} |
504 |
|
|
505 |
|
/** |
506 |
< |
* |
506 |
> |
* remove removes next element, or throws NSEE if empty |
507 |
|
*/ |
508 |
|
public void testRemove() { |
509 |
|
ArrayBlockingQueue q = populatedQueue(SIZE); |
510 |
|
for (int i = 0; i < SIZE; ++i) { |
511 |
< |
assertEquals(i, ((Integer)q.remove()).intValue()); |
511 |
> |
assertEquals(i, q.remove()); |
512 |
|
} |
513 |
|
try { |
514 |
|
q.remove(); |
515 |
|
shouldThrow(); |
516 |
< |
} catch (NoSuchElementException success){ |
584 |
< |
} |
516 |
> |
} catch (NoSuchElementException success) {} |
517 |
|
} |
518 |
|
|
519 |
|
/** |
520 |
< |
* |
589 |
< |
*/ |
590 |
< |
public void testRemoveElement() { |
591 |
< |
ArrayBlockingQueue q = populatedQueue(SIZE); |
592 |
< |
for (int i = 1; i < SIZE; i+=2) { |
593 |
< |
assertTrue(q.remove(new Integer(i))); |
594 |
< |
} |
595 |
< |
for (int i = 0; i < SIZE; i+=2) { |
596 |
< |
assertTrue(q.remove(new Integer(i))); |
597 |
< |
assertFalse(q.remove(new Integer(i+1))); |
598 |
< |
} |
599 |
< |
assertTrue(q.isEmpty()); |
600 |
< |
} |
601 |
< |
|
602 |
< |
/** |
603 |
< |
* |
520 |
> |
* contains(x) reports true when elements added but not yet removed |
521 |
|
*/ |
522 |
|
public void testContains() { |
523 |
|
ArrayBlockingQueue q = populatedQueue(SIZE); |
524 |
|
for (int i = 0; i < SIZE; ++i) { |
525 |
|
assertTrue(q.contains(new Integer(i))); |
526 |
< |
q.poll(); |
526 |
> |
assertEquals(i, q.poll()); |
527 |
|
assertFalse(q.contains(new Integer(i))); |
528 |
|
} |
529 |
|
} |
530 |
|
|
531 |
|
/** |
532 |
< |
* |
532 |
> |
* clear removes all elements |
533 |
|
*/ |
534 |
|
public void testClear() { |
535 |
|
ArrayBlockingQueue q = populatedQueue(SIZE); |
539 |
|
assertEquals(SIZE, q.remainingCapacity()); |
540 |
|
q.add(one); |
541 |
|
assertFalse(q.isEmpty()); |
542 |
+ |
assertTrue(q.contains(one)); |
543 |
|
q.clear(); |
544 |
|
assertTrue(q.isEmpty()); |
545 |
|
} |
546 |
|
|
547 |
|
/** |
548 |
< |
* |
548 |
> |
* containsAll(c) is true when c contains a subset of elements |
549 |
|
*/ |
550 |
|
public void testContainsAll() { |
551 |
|
ArrayBlockingQueue q = populatedQueue(SIZE); |
559 |
|
} |
560 |
|
|
561 |
|
/** |
562 |
< |
* |
562 |
> |
* retainAll(c) retains only those elements of c and reports true if changed |
563 |
|
*/ |
564 |
|
public void testRetainAll() { |
565 |
|
ArrayBlockingQueue q = populatedQueue(SIZE); |
578 |
|
} |
579 |
|
|
580 |
|
/** |
581 |
< |
* |
581 |
> |
* removeAll(c) removes only those elements of c and reports true if changed |
582 |
|
*/ |
583 |
|
public void testRemoveAll() { |
584 |
|
for (int i = 1; i < SIZE; ++i) { |
593 |
|
} |
594 |
|
} |
595 |
|
|
596 |
+ |
void checkToArray(ArrayBlockingQueue q) { |
597 |
+ |
int size = q.size(); |
598 |
+ |
Object[] o = q.toArray(); |
599 |
+ |
assertEquals(size, o.length); |
600 |
+ |
Iterator it = q.iterator(); |
601 |
+ |
for (int i = 0; i < size; i++) { |
602 |
+ |
Integer x = (Integer) it.next(); |
603 |
+ |
assertEquals((Integer)o[0] + i, (int) x); |
604 |
+ |
assertSame(o[i], x); |
605 |
+ |
} |
606 |
+ |
} |
607 |
|
|
608 |
|
/** |
609 |
< |
* |
609 |
> |
* toArray() contains all elements in FIFO order |
610 |
|
*/ |
611 |
|
public void testToArray() { |
612 |
< |
ArrayBlockingQueue q = populatedQueue(SIZE); |
613 |
< |
Object[] o = q.toArray(); |
614 |
< |
try { |
615 |
< |
for(int i = 0; i < o.length; i++) |
616 |
< |
assertEquals(o[i], q.take()); |
617 |
< |
} catch (InterruptedException e){ |
618 |
< |
unexpectedException(); |
619 |
< |
} |
612 |
> |
ArrayBlockingQueue q = new ArrayBlockingQueue(SIZE); |
613 |
> |
for (int i = 0; i < SIZE; i++) { |
614 |
> |
checkToArray(q); |
615 |
> |
q.add(i); |
616 |
> |
} |
617 |
> |
// Provoke wraparound |
618 |
> |
for (int i = 0; i < SIZE; i++) { |
619 |
> |
checkToArray(q); |
620 |
> |
assertEquals(i, q.poll()); |
621 |
> |
checkToArray(q); |
622 |
> |
q.add(SIZE+i); |
623 |
> |
} |
624 |
> |
for (int i = 0; i < SIZE; i++) { |
625 |
> |
checkToArray(q); |
626 |
> |
assertEquals(SIZE+i, q.poll()); |
627 |
> |
} |
628 |
> |
} |
629 |
> |
|
630 |
> |
void checkToArray2(ArrayBlockingQueue q) { |
631 |
> |
int size = q.size(); |
632 |
> |
Integer[] a1 = size == 0 ? null : new Integer[size-1]; |
633 |
> |
Integer[] a2 = new Integer[size]; |
634 |
> |
Integer[] a3 = new Integer[size+2]; |
635 |
> |
if (size > 0) Arrays.fill(a1, 42); |
636 |
> |
Arrays.fill(a2, 42); |
637 |
> |
Arrays.fill(a3, 42); |
638 |
> |
Integer[] b1 = size == 0 ? null : (Integer[]) q.toArray(a1); |
639 |
> |
Integer[] b2 = (Integer[]) q.toArray(a2); |
640 |
> |
Integer[] b3 = (Integer[]) q.toArray(a3); |
641 |
> |
assertSame(a2, b2); |
642 |
> |
assertSame(a3, b3); |
643 |
> |
Iterator it = q.iterator(); |
644 |
> |
for (int i = 0; i < size; i++) { |
645 |
> |
Integer x = (Integer) it.next(); |
646 |
> |
assertSame(b1[i], x); |
647 |
> |
assertEquals(b1[0] + i, (int) x); |
648 |
> |
assertSame(b2[i], x); |
649 |
> |
assertSame(b3[i], x); |
650 |
> |
} |
651 |
> |
assertNull(a3[size]); |
652 |
> |
assertEquals(42, (int) a3[size+1]); |
653 |
> |
if (size > 0) { |
654 |
> |
assertNotSame(a1, b1); |
655 |
> |
assertEquals(size, b1.length); |
656 |
> |
for (int i = 0; i < a1.length; i++) { |
657 |
> |
assertEquals(42, (int) a1[i]); |
658 |
> |
} |
659 |
> |
} |
660 |
|
} |
661 |
|
|
662 |
|
/** |
663 |
< |
* |
663 |
> |
* toArray(a) contains all elements in FIFO order |
664 |
|
*/ |
665 |
|
public void testToArray2() { |
666 |
+ |
ArrayBlockingQueue q = new ArrayBlockingQueue(SIZE); |
667 |
+ |
for (int i = 0; i < SIZE; i++) { |
668 |
+ |
checkToArray2(q); |
669 |
+ |
q.add(i); |
670 |
+ |
} |
671 |
+ |
// Provoke wraparound |
672 |
+ |
for (int i = 0; i < SIZE; i++) { |
673 |
+ |
checkToArray2(q); |
674 |
+ |
assertEquals(i, q.poll()); |
675 |
+ |
checkToArray2(q); |
676 |
+ |
q.add(SIZE+i); |
677 |
+ |
} |
678 |
+ |
for (int i = 0; i < SIZE; i++) { |
679 |
+ |
checkToArray2(q); |
680 |
+ |
assertEquals(SIZE+i, q.poll()); |
681 |
+ |
} |
682 |
+ |
} |
683 |
+ |
|
684 |
+ |
/** |
685 |
+ |
* toArray(incompatible array type) throws ArrayStoreException |
686 |
+ |
*/ |
687 |
+ |
public void testToArray1_BadArg() { |
688 |
|
ArrayBlockingQueue q = populatedQueue(SIZE); |
689 |
< |
Integer[] ints = new Integer[SIZE]; |
690 |
< |
ints = (Integer[])q.toArray(ints); |
691 |
< |
try { |
692 |
< |
for(int i = 0; i < ints.length; i++) |
702 |
< |
assertEquals(ints[i], q.take()); |
703 |
< |
} catch (InterruptedException e){ |
704 |
< |
unexpectedException(); |
705 |
< |
} |
689 |
> |
try { |
690 |
> |
q.toArray(new String[10]); |
691 |
> |
shouldThrow(); |
692 |
> |
} catch (ArrayStoreException success) {} |
693 |
|
} |
694 |
< |
|
694 |
> |
|
695 |
|
/** |
696 |
< |
* |
696 |
> |
* iterator iterates through all elements |
697 |
|
*/ |
698 |
< |
public void testIterator() { |
698 |
> |
public void testIterator() throws InterruptedException { |
699 |
|
ArrayBlockingQueue q = populatedQueue(SIZE); |
700 |
< |
Iterator it = q.iterator(); |
701 |
< |
try { |
702 |
< |
while(it.hasNext()){ |
703 |
< |
assertEquals(it.next(), q.take()); |
717 |
< |
} |
718 |
< |
} catch (InterruptedException e){ |
719 |
< |
unexpectedException(); |
720 |
< |
} |
700 |
> |
Iterator it = q.iterator(); |
701 |
> |
while (it.hasNext()) { |
702 |
> |
assertEquals(it.next(), q.take()); |
703 |
> |
} |
704 |
|
} |
705 |
|
|
706 |
|
/** |
707 |
< |
* |
707 |
> |
* iterator.remove removes current element |
708 |
> |
*/ |
709 |
> |
public void testIteratorRemove() { |
710 |
> |
final ArrayBlockingQueue q = new ArrayBlockingQueue(3); |
711 |
> |
q.add(two); |
712 |
> |
q.add(one); |
713 |
> |
q.add(three); |
714 |
> |
|
715 |
> |
Iterator it = q.iterator(); |
716 |
> |
it.next(); |
717 |
> |
it.remove(); |
718 |
> |
|
719 |
> |
it = q.iterator(); |
720 |
> |
assertSame(it.next(), one); |
721 |
> |
assertSame(it.next(), three); |
722 |
> |
assertFalse(it.hasNext()); |
723 |
> |
} |
724 |
> |
|
725 |
> |
/** |
726 |
> |
* iterator ordering is FIFO |
727 |
|
*/ |
728 |
|
public void testIteratorOrdering() { |
729 |
|
final ArrayBlockingQueue q = new ArrayBlockingQueue(3); |
735 |
|
|
736 |
|
int k = 0; |
737 |
|
for (Iterator it = q.iterator(); it.hasNext();) { |
738 |
< |
int i = ((Integer)(it.next())).intValue(); |
737 |
< |
assertEquals(++k, i); |
738 |
> |
assertEquals(++k, it.next()); |
739 |
|
} |
740 |
|
assertEquals(3, k); |
741 |
|
} |
742 |
|
|
743 |
|
/** |
744 |
< |
* |
744 |
> |
* Modifications do not cause iterators to fail |
745 |
|
*/ |
746 |
< |
public void testWeaklyConsistentIteration () { |
746 |
> |
public void testWeaklyConsistentIteration() { |
747 |
|
final ArrayBlockingQueue q = new ArrayBlockingQueue(3); |
748 |
|
q.add(one); |
749 |
|
q.add(two); |
750 |
|
q.add(three); |
751 |
< |
try { |
752 |
< |
for (Iterator it = q.iterator(); it.hasNext();) { |
753 |
< |
q.remove(); |
753 |
< |
it.next(); |
754 |
< |
} |
755 |
< |
} |
756 |
< |
catch (ConcurrentModificationException e) { |
757 |
< |
unexpectedException(); |
751 |
> |
for (Iterator it = q.iterator(); it.hasNext();) { |
752 |
> |
q.remove(); |
753 |
> |
it.next(); |
754 |
|
} |
759 |
– |
|
755 |
|
assertEquals(0, q.size()); |
756 |
|
} |
757 |
|
|
763 |
– |
|
758 |
|
/** |
759 |
< |
* |
759 |
> |
* toString contains toStrings of elements |
760 |
|
*/ |
761 |
|
public void testToString() { |
762 |
|
ArrayBlockingQueue q = populatedQueue(SIZE); |
763 |
|
String s = q.toString(); |
764 |
|
for (int i = 0; i < SIZE; ++i) { |
765 |
< |
assertTrue(s.indexOf(String.valueOf(i)) >= 0); |
765 |
> |
assertTrue(s.contains(String.valueOf(i))); |
766 |
|
} |
767 |
< |
} |
774 |
< |
|
767 |
> |
} |
768 |
|
|
769 |
|
/** |
770 |
< |
* |
770 |
> |
* offer transfers elements across Executor tasks |
771 |
|
*/ |
772 |
|
public void testOfferInExecutor() { |
780 |
– |
|
773 |
|
final ArrayBlockingQueue q = new ArrayBlockingQueue(2); |
782 |
– |
|
774 |
|
q.add(one); |
775 |
|
q.add(two); |
785 |
– |
|
776 |
|
ExecutorService executor = Executors.newFixedThreadPool(2); |
777 |
+ |
final CheckedBarrier threadsStarted = new CheckedBarrier(2); |
778 |
+ |
executor.execute(new CheckedRunnable() { |
779 |
+ |
public void realRun() throws InterruptedException { |
780 |
+ |
assertFalse(q.offer(three)); |
781 |
+ |
threadsStarted.await(); |
782 |
+ |
assertTrue(q.offer(three, LONG_DELAY_MS, MILLISECONDS)); |
783 |
+ |
assertEquals(0, q.remainingCapacity()); |
784 |
+ |
}}); |
785 |
+ |
|
786 |
+ |
executor.execute(new CheckedRunnable() { |
787 |
+ |
public void realRun() throws InterruptedException { |
788 |
+ |
threadsStarted.await(); |
789 |
+ |
assertEquals(0, q.remainingCapacity()); |
790 |
+ |
assertSame(one, q.take()); |
791 |
+ |
}}); |
792 |
|
|
788 |
– |
executor.execute(new Runnable() { |
789 |
– |
public void run() { |
790 |
– |
threadAssertFalse(q.offer(three)); |
791 |
– |
try { |
792 |
– |
threadAssertTrue(q.offer(three, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS)); |
793 |
– |
threadAssertEquals(0, q.remainingCapacity()); |
794 |
– |
} |
795 |
– |
catch (InterruptedException e) { |
796 |
– |
threadUnexpectedException(); |
797 |
– |
} |
798 |
– |
} |
799 |
– |
}); |
800 |
– |
|
801 |
– |
executor.execute(new Runnable() { |
802 |
– |
public void run() { |
803 |
– |
try { |
804 |
– |
Thread.sleep(SMALL_DELAY_MS); |
805 |
– |
threadAssertEquals(one, q.take()); |
806 |
– |
} |
807 |
– |
catch (InterruptedException e) { |
808 |
– |
threadUnexpectedException(); |
809 |
– |
} |
810 |
– |
} |
811 |
– |
}); |
812 |
– |
|
793 |
|
joinPool(executor); |
814 |
– |
|
794 |
|
} |
795 |
|
|
796 |
|
/** |
797 |
< |
* |
797 |
> |
* timed poll retrieves elements across Executor threads |
798 |
|
*/ |
799 |
|
public void testPollInExecutor() { |
821 |
– |
|
800 |
|
final ArrayBlockingQueue q = new ArrayBlockingQueue(2); |
801 |
< |
|
801 |
> |
final CheckedBarrier threadsStarted = new CheckedBarrier(2); |
802 |
|
ExecutorService executor = Executors.newFixedThreadPool(2); |
803 |
+ |
executor.execute(new CheckedRunnable() { |
804 |
+ |
public void realRun() throws InterruptedException { |
805 |
+ |
assertNull(q.poll()); |
806 |
+ |
threadsStarted.await(); |
807 |
+ |
assertSame(one, q.poll(LONG_DELAY_MS, MILLISECONDS)); |
808 |
+ |
checkEmpty(q); |
809 |
+ |
}}); |
810 |
+ |
|
811 |
+ |
executor.execute(new CheckedRunnable() { |
812 |
+ |
public void realRun() throws InterruptedException { |
813 |
+ |
threadsStarted.await(); |
814 |
+ |
q.put(one); |
815 |
+ |
}}); |
816 |
|
|
826 |
– |
executor.execute(new Runnable() { |
827 |
– |
public void run() { |
828 |
– |
threadAssertNull(q.poll()); |
829 |
– |
try { |
830 |
– |
threadAssertTrue(null != q.poll(MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS)); |
831 |
– |
threadAssertTrue(q.isEmpty()); |
832 |
– |
} |
833 |
– |
catch (InterruptedException e) { |
834 |
– |
threadUnexpectedException(); |
835 |
– |
} |
836 |
– |
} |
837 |
– |
}); |
838 |
– |
|
839 |
– |
executor.execute(new Runnable() { |
840 |
– |
public void run() { |
841 |
– |
try { |
842 |
– |
Thread.sleep(SMALL_DELAY_MS); |
843 |
– |
q.put(one); |
844 |
– |
} |
845 |
– |
catch (InterruptedException e) { |
846 |
– |
threadUnexpectedException(); |
847 |
– |
} |
848 |
– |
} |
849 |
– |
}); |
850 |
– |
|
817 |
|
joinPool(executor); |
818 |
+ |
} |
819 |
+ |
|
820 |
+ |
/** |
821 |
+ |
* A deserialized serialized queue has same elements in same order |
822 |
+ |
*/ |
823 |
+ |
public void testSerialization() throws Exception { |
824 |
+ |
Queue x = populatedQueue(SIZE); |
825 |
+ |
Queue y = serialClone(x); |
826 |
|
|
827 |
+ |
assertNotSame(x, y); |
828 |
+ |
assertEquals(x.size(), y.size()); |
829 |
+ |
assertEquals(x.toString(), y.toString()); |
830 |
+ |
assertTrue(Arrays.equals(x.toArray(), y.toArray())); |
831 |
+ |
while (!x.isEmpty()) { |
832 |
+ |
assertFalse(y.isEmpty()); |
833 |
+ |
assertEquals(x.remove(), y.remove()); |
834 |
+ |
} |
835 |
+ |
assertTrue(y.isEmpty()); |
836 |
|
} |
837 |
|
|
838 |
|
/** |
839 |
< |
* |
839 |
> |
* drainTo(c) empties queue into another collection c |
840 |
|
*/ |
841 |
< |
public void testSerialization() { |
841 |
> |
public void testDrainTo() { |
842 |
|
ArrayBlockingQueue q = populatedQueue(SIZE); |
843 |
+ |
ArrayList l = new ArrayList(); |
844 |
+ |
q.drainTo(l); |
845 |
+ |
assertEquals(0, q.size()); |
846 |
+ |
assertEquals(SIZE, l.size()); |
847 |
+ |
for (int i = 0; i < SIZE; ++i) |
848 |
+ |
assertEquals(l.get(i), new Integer(i)); |
849 |
+ |
q.add(zero); |
850 |
+ |
q.add(one); |
851 |
+ |
assertFalse(q.isEmpty()); |
852 |
+ |
assertTrue(q.contains(zero)); |
853 |
+ |
assertTrue(q.contains(one)); |
854 |
+ |
l.clear(); |
855 |
+ |
q.drainTo(l); |
856 |
+ |
assertEquals(0, q.size()); |
857 |
+ |
assertEquals(2, l.size()); |
858 |
+ |
for (int i = 0; i < 2; ++i) |
859 |
+ |
assertEquals(l.get(i), new Integer(i)); |
860 |
+ |
} |
861 |
|
|
862 |
< |
try { |
863 |
< |
ByteArrayOutputStream bout = new ByteArrayOutputStream(10000); |
864 |
< |
ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout)); |
865 |
< |
out.writeObject(q); |
866 |
< |
out.close(); |
862 |
> |
/** |
863 |
> |
* drainTo empties full queue, unblocking a waiting put. |
864 |
> |
*/ |
865 |
> |
public void testDrainToWithActivePut() throws InterruptedException { |
866 |
> |
final ArrayBlockingQueue q = populatedQueue(SIZE); |
867 |
> |
Thread t = new Thread(new CheckedRunnable() { |
868 |
> |
public void realRun() throws InterruptedException { |
869 |
> |
q.put(new Integer(SIZE+1)); |
870 |
> |
}}); |
871 |
> |
|
872 |
> |
t.start(); |
873 |
> |
ArrayList l = new ArrayList(); |
874 |
> |
q.drainTo(l); |
875 |
> |
assertTrue(l.size() >= SIZE); |
876 |
> |
for (int i = 0; i < SIZE; ++i) |
877 |
> |
assertEquals(l.get(i), new Integer(i)); |
878 |
> |
t.join(); |
879 |
> |
assertTrue(q.size() + l.size() >= SIZE); |
880 |
> |
} |
881 |
|
|
882 |
< |
ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray()); |
883 |
< |
ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin)); |
884 |
< |
ArrayBlockingQueue r = (ArrayBlockingQueue)in.readObject(); |
885 |
< |
assertEquals(q.size(), r.size()); |
886 |
< |
while (!q.isEmpty()) |
887 |
< |
assertEquals(q.remove(), r.remove()); |
888 |
< |
} catch(Exception e){ |
889 |
< |
unexpectedException(); |
882 |
> |
/** |
883 |
> |
* drainTo(c, n) empties first min(n, size) elements of queue into c |
884 |
> |
*/ |
885 |
> |
public void testDrainToN() { |
886 |
> |
ArrayBlockingQueue q = new ArrayBlockingQueue(SIZE*2); |
887 |
> |
for (int i = 0; i < SIZE + 2; ++i) { |
888 |
> |
for (int j = 0; j < SIZE; j++) |
889 |
> |
assertTrue(q.offer(new Integer(j))); |
890 |
> |
ArrayList l = new ArrayList(); |
891 |
> |
q.drainTo(l, i); |
892 |
> |
int k = (i < SIZE) ? i : SIZE; |
893 |
> |
assertEquals(k, l.size()); |
894 |
> |
assertEquals(SIZE-k, q.size()); |
895 |
> |
for (int j = 0; j < k; ++j) |
896 |
> |
assertEquals(l.get(j), new Integer(j)); |
897 |
> |
while (q.poll() != null) ; |
898 |
|
} |
899 |
|
} |
900 |
|
|
901 |
+ |
/** |
902 |
+ |
* remove(null), contains(null) always return false |
903 |
+ |
*/ |
904 |
+ |
public void testNeverContainsNull() { |
905 |
+ |
Collection<?>[] qs = { |
906 |
+ |
new ArrayBlockingQueue<Object>(10), |
907 |
+ |
populatedQueue(2), |
908 |
+ |
}; |
909 |
|
|
910 |
+ |
for (Collection<?> q : qs) { |
911 |
+ |
assertFalse(q.contains(null)); |
912 |
+ |
assertFalse(q.remove(null)); |
913 |
+ |
} |
914 |
+ |
} |
915 |
|
} |