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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/licenses/publicdomain |
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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 junit.framework.*; |
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import java.util.*; |
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import java.util.concurrent.*; |
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import static java.util.concurrent.TimeUnit.MILLISECONDS; |
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import java.io.*; |
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|
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public class PriorityBlockingQueueTest 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 PriorityBlockingQueue(); |
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} |
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} |
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|
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public static class InitialCapacity extends BlockingQueueTest { |
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protected BlockingQueue emptyCollection() { |
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return new PriorityBlockingQueue(20); |
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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(PriorityBlockingQueueTest.class); |
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return newTestSuite(PriorityBlockingQueueTest.class, |
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new Generic().testSuite(), |
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new InitialCapacity().testSuite()); |
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} |
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|
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private static final int NOCAP = Integer.MAX_VALUE; |
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|
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/** Sample Comparator */ |
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static class MyReverseComparator implements Comparator { |
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static class MyReverseComparator implements Comparator { |
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public int compare(Object x, Object y) { |
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int i = ((Integer)x).intValue(); |
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int j = ((Integer)y).intValue(); |
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if (i < j) return 1; |
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if (i > j) return -1; |
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return 0; |
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return ((Comparable)y).compareTo(x); |
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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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* Integers 0 ... n. |
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*/ |
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private PriorityBlockingQueue populatedQueue(int n) { |
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PriorityBlockingQueue q = new PriorityBlockingQueue(n); |
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private PriorityBlockingQueue<Integer> populatedQueue(int n) { |
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PriorityBlockingQueue<Integer> q = |
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new PriorityBlockingQueue<Integer>(n); |
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assertTrue(q.isEmpty()); |
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for(int i = n-1; i >= 0; i-=2) |
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assertTrue(q.offer(new Integer(i))); |
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for(int i = (n & 1); i < n; i+=2) |
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assertTrue(q.offer(new Integer(i))); |
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for (int i = n-1; i >= 0; i-=2) |
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assertTrue(q.offer(new Integer(i))); |
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for (int i = (n & 1); i < n; i+=2) |
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assertTrue(q.offer(new Integer(i))); |
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assertFalse(q.isEmpty()); |
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assertEquals(NOCAP, 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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* A new queue has unbounded capacity |
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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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* 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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PriorityBlockingQueue q = new PriorityBlockingQueue(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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try { |
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PriorityBlockingQueue q = new PriorityBlockingQueue(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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Integer[] ints = new Integer[SIZE]; |
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PriorityBlockingQueue q = new PriorityBlockingQueue(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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ints[i] = new Integer(i); |
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PriorityBlockingQueue q = new PriorityBlockingQueue(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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* Queue contains all elements of collection used to initialize |
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*/ |
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public void testConstructor6() { |
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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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PriorityBlockingQueue q = new PriorityBlockingQueue(Arrays.asList(ints)); |
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for (int i = 0; i < SIZE; ++i) |
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assertEquals(ints[i], q.poll()); |
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} |
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finally {} |
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Integer[] ints = new Integer[SIZE]; |
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for (int i = 0; i < SIZE; ++i) |
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ints[i] = new Integer(i); |
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PriorityBlockingQueue q = new PriorityBlockingQueue(Arrays.asList(ints)); |
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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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* The comparator used in constructor is used |
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*/ |
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public void testConstructor7() { |
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try { |
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MyReverseComparator cmp = new MyReverseComparator(); |
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PriorityBlockingQueue q = new PriorityBlockingQueue(SIZE, cmp); |
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assertEquals(cmp, q.comparator()); |
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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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q.addAll(Arrays.asList(ints)); |
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for (int i = SIZE-1; i >= 0; --i) |
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assertEquals(ints[i], q.poll()); |
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} |
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finally {} |
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MyReverseComparator cmp = new MyReverseComparator(); |
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PriorityBlockingQueue q = new PriorityBlockingQueue(SIZE, cmp); |
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assertEquals(cmp, q.comparator()); |
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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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q.addAll(Arrays.asList(ints)); |
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for (int i = SIZE-1; i >= 0; --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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|
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/** |
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* remainingCapacity does not change when elementa added or removed, |
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* remainingCapacity does not change when elements added or removed, |
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* but size does |
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*/ |
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public void testRemainingCapacity() { |
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* offer(null) throws NPE |
179 |
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*/ |
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public void testOfferNull() { |
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try { |
181 |
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try { |
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PriorityBlockingQueue q = new PriorityBlockingQueue(1); |
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q.offer(null); |
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shouldThrow(); |
185 |
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} catch (NullPointerException success) { } |
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} catch (NullPointerException success) {} |
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} |
187 |
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|
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/** |
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* add(null) throws NPE |
190 |
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*/ |
191 |
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public void testAddNull() { |
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try { |
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PriorityBlockingQueue q = new PriorityBlockingQueue(1); |
194 |
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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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q.offer(new Object()); |
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q.offer(new Object()); |
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shouldThrow(); |
218 |
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} |
203 |
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catch(ClassCastException success) {} |
218 |
> |
} catch (ClassCastException success) {} |
219 |
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} |
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|
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/** |
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PriorityBlockingQueue q = new PriorityBlockingQueue(1); |
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q.addAll(null); |
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shouldThrow(); |
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} |
241 |
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catch (NullPointerException success) {} |
240 |
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} catch (NullPointerException success) {} |
241 |
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} |
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|
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/** |
244 |
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* addAll(this) throws IAE |
245 |
> |
*/ |
246 |
> |
public void testAddAllSelf() { |
247 |
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try { |
248 |
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PriorityBlockingQueue q = populatedQueue(SIZE); |
249 |
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q.addAll(q); |
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shouldThrow(); |
251 |
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} catch (IllegalArgumentException success) {} |
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} |
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|
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/** |
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* addAll of a collection with null elements throws NPE |
256 |
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*/ |
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Integer[] ints = new Integer[SIZE]; |
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q.addAll(Arrays.asList(ints)); |
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shouldThrow(); |
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} |
238 |
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catch (NullPointerException success) {} |
263 |
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} catch (NullPointerException success) {} |
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} |
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|
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/** |
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* addAll of a collection with any null elements throws NPE after |
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* possibly adding some elements |
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ints[i] = new Integer(i); |
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q.addAll(Arrays.asList(ints)); |
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shouldThrow(); |
278 |
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} |
253 |
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catch (NullPointerException success) {} |
278 |
> |
} catch (NullPointerException success) {} |
279 |
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} |
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|
281 |
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/** |
282 |
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* Queue contains all elements of successful addAll |
283 |
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*/ |
284 |
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public void testAddAll5() { |
285 |
< |
try { |
286 |
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Integer[] empty = new Integer[0]; |
287 |
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Integer[] ints = new Integer[SIZE]; |
288 |
< |
for (int i = SIZE-1; i >= 0; --i) |
289 |
< |
ints[i] = new Integer(i); |
290 |
< |
PriorityBlockingQueue q = new PriorityBlockingQueue(SIZE); |
291 |
< |
assertFalse(q.addAll(Arrays.asList(empty))); |
292 |
< |
assertTrue(q.addAll(Arrays.asList(ints))); |
293 |
< |
for (int i = 0; i < SIZE; ++i) |
269 |
< |
assertEquals(ints[i], q.poll()); |
270 |
< |
} |
271 |
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finally {} |
285 |
> |
Integer[] empty = new Integer[0]; |
286 |
> |
Integer[] ints = new Integer[SIZE]; |
287 |
> |
for (int i = SIZE-1; i >= 0; --i) |
288 |
> |
ints[i] = new Integer(i); |
289 |
> |
PriorityBlockingQueue q = new PriorityBlockingQueue(SIZE); |
290 |
> |
assertFalse(q.addAll(Arrays.asList(empty))); |
291 |
> |
assertTrue(q.addAll(Arrays.asList(ints))); |
292 |
> |
for (int i = 0; i < SIZE; ++i) |
293 |
> |
assertEquals(ints[i], q.poll()); |
294 |
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} |
295 |
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|
296 |
|
/** |
297 |
|
* put(null) throws NPE |
298 |
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*/ |
299 |
|
public void testPutNull() { |
300 |
< |
try { |
300 |
> |
try { |
301 |
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PriorityBlockingQueue q = new PriorityBlockingQueue(SIZE); |
302 |
|
q.put(null); |
303 |
|
shouldThrow(); |
304 |
< |
} |
283 |
< |
catch (NullPointerException success){ |
284 |
< |
} |
304 |
> |
} catch (NullPointerException success) {} |
305 |
|
} |
306 |
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|
307 |
|
/** |
308 |
|
* all elements successfully put are contained |
309 |
|
*/ |
310 |
|
public void testPut() { |
311 |
< |
try { |
312 |
< |
PriorityBlockingQueue q = new PriorityBlockingQueue(SIZE); |
313 |
< |
for (int i = 0; i < SIZE; ++i) { |
314 |
< |
Integer I = new Integer(i); |
315 |
< |
q.put(I); |
296 |
< |
assertTrue(q.contains(I)); |
297 |
< |
} |
298 |
< |
assertEquals(SIZE, q.size()); |
311 |
> |
PriorityBlockingQueue q = new PriorityBlockingQueue(SIZE); |
312 |
> |
for (int i = 0; i < SIZE; ++i) { |
313 |
> |
Integer I = new Integer(i); |
314 |
> |
q.put(I); |
315 |
> |
assertTrue(q.contains(I)); |
316 |
|
} |
317 |
< |
finally { |
301 |
< |
} |
317 |
> |
assertEquals(SIZE, q.size()); |
318 |
|
} |
319 |
|
|
320 |
|
/** |
321 |
|
* put doesn't block waiting for take |
322 |
|
*/ |
323 |
< |
public void testPutWithTake() { |
323 |
> |
public void testPutWithTake() throws InterruptedException { |
324 |
|
final PriorityBlockingQueue q = new PriorityBlockingQueue(2); |
325 |
< |
Thread t = new Thread(new Runnable() { |
326 |
< |
public void run() { |
327 |
< |
int added = 0; |
328 |
< |
try { |
329 |
< |
q.put(new Integer(0)); |
330 |
< |
++added; |
331 |
< |
q.put(new Integer(0)); |
332 |
< |
++added; |
333 |
< |
q.put(new Integer(0)); |
334 |
< |
++added; |
335 |
< |
q.put(new Integer(0)); |
336 |
< |
++added; |
337 |
< |
threadAssertTrue(added == 4); |
322 |
< |
} finally { |
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 |
< |
} |
325 |
> |
final int size = 4; |
326 |
> |
Thread t = new Thread(new CheckedRunnable() { |
327 |
> |
public void realRun() { |
328 |
> |
for (int i = 0; i < size; i++) |
329 |
> |
q.put(new Integer(0)); |
330 |
> |
}}); |
331 |
> |
|
332 |
> |
t.start(); |
333 |
> |
Thread.sleep(SHORT_DELAY_MS); |
334 |
> |
assertEquals(q.size(), size); |
335 |
> |
q.take(); |
336 |
> |
t.interrupt(); |
337 |
> |
t.join(); |
338 |
|
} |
339 |
|
|
340 |
|
/** |
341 |
|
* timed offer does not time out |
342 |
|
*/ |
343 |
< |
public void testTimedOffer() { |
343 |
> |
public void testTimedOffer() throws InterruptedException { |
344 |
|
final PriorityBlockingQueue q = new PriorityBlockingQueue(2); |
345 |
< |
Thread t = new Thread(new Runnable() { |
346 |
< |
public void run() { |
347 |
< |
try { |
348 |
< |
q.put(new Integer(0)); |
349 |
< |
q.put(new Integer(0)); |
350 |
< |
threadAssertTrue(q.offer(new Integer(0), SHORT_DELAY_MS, TimeUnit.MILLISECONDS)); |
351 |
< |
threadAssertTrue(q.offer(new Integer(0), LONG_DELAY_MS, TimeUnit.MILLISECONDS)); |
349 |
< |
} finally { } |
350 |
< |
} |
351 |
< |
}); |
352 |
< |
|
353 |
< |
try { |
354 |
< |
t.start(); |
355 |
< |
Thread.sleep(SMALL_DELAY_MS); |
356 |
< |
t.interrupt(); |
357 |
< |
t.join(); |
358 |
< |
} catch (Exception e){ |
359 |
< |
unexpectedException(); |
360 |
< |
} |
361 |
< |
} |
345 |
> |
Thread t = new Thread(new CheckedRunnable() { |
346 |
> |
public void realRun() { |
347 |
> |
q.put(new Integer(0)); |
348 |
> |
q.put(new Integer(0)); |
349 |
> |
assertTrue(q.offer(new Integer(0), SHORT_DELAY_MS, MILLISECONDS)); |
350 |
> |
assertTrue(q.offer(new Integer(0), LONG_DELAY_MS, MILLISECONDS)); |
351 |
> |
}}); |
352 |
|
|
353 |
< |
/** |
354 |
< |
* take retrieves elements in priority order |
355 |
< |
*/ |
356 |
< |
public void testTake() { |
367 |
< |
try { |
368 |
< |
PriorityBlockingQueue q = populatedQueue(SIZE); |
369 |
< |
for (int i = 0; i < SIZE; ++i) { |
370 |
< |
assertEquals(i, ((Integer)q.take()).intValue()); |
371 |
< |
} |
372 |
< |
} catch (InterruptedException e){ |
373 |
< |
unexpectedException(); |
374 |
< |
} |
353 |
> |
t.start(); |
354 |
> |
Thread.sleep(SMALL_DELAY_MS); |
355 |
> |
t.interrupt(); |
356 |
> |
t.join(); |
357 |
|
} |
358 |
|
|
359 |
|
/** |
360 |
< |
* take blocks interruptibly when empty |
360 |
> |
* take retrieves elements in priority order |
361 |
|
*/ |
362 |
< |
public void testTakeFromEmpty() { |
363 |
< |
final PriorityBlockingQueue q = new PriorityBlockingQueue(2); |
364 |
< |
Thread t = new Thread(new Runnable() { |
365 |
< |
public void run() { |
384 |
< |
try { |
385 |
< |
q.take(); |
386 |
< |
threadShouldThrow(); |
387 |
< |
} catch (InterruptedException success){ } |
388 |
< |
} |
389 |
< |
}); |
390 |
< |
try { |
391 |
< |
t.start(); |
392 |
< |
Thread.sleep(SHORT_DELAY_MS); |
393 |
< |
t.interrupt(); |
394 |
< |
t.join(); |
395 |
< |
} catch (Exception e){ |
396 |
< |
unexpectedException(); |
362 |
> |
public void testTake() throws InterruptedException { |
363 |
> |
PriorityBlockingQueue q = populatedQueue(SIZE); |
364 |
> |
for (int i = 0; i < SIZE; ++i) { |
365 |
> |
assertEquals(i, q.take()); |
366 |
|
} |
367 |
|
} |
368 |
|
|
369 |
|
/** |
370 |
|
* Take removes existing elements until empty, then blocks interruptibly |
371 |
|
*/ |
372 |
< |
public void testBlockingTake() { |
373 |
< |
Thread t = new Thread(new Runnable() { |
374 |
< |
public void run() { |
375 |
< |
try { |
376 |
< |
PriorityBlockingQueue q = populatedQueue(SIZE); |
377 |
< |
for (int i = 0; i < SIZE; ++i) { |
378 |
< |
threadAssertEquals(i, ((Integer)q.take()).intValue()); |
379 |
< |
} |
380 |
< |
q.take(); |
381 |
< |
threadShouldThrow(); |
382 |
< |
} catch (InterruptedException success){ |
383 |
< |
} |
384 |
< |
}}); |
372 |
> |
public void testBlockingTake() throws InterruptedException { |
373 |
> |
final PriorityBlockingQueue q = populatedQueue(SIZE); |
374 |
> |
Thread t = new Thread(new CheckedRunnable() { |
375 |
> |
public void realRun() throws InterruptedException { |
376 |
> |
for (int i = 0; i < SIZE; ++i) { |
377 |
> |
assertEquals(i, q.take()); |
378 |
> |
} |
379 |
> |
try { |
380 |
> |
q.take(); |
381 |
> |
shouldThrow(); |
382 |
> |
} catch (InterruptedException success) {} |
383 |
> |
}}); |
384 |
> |
|
385 |
|
t.start(); |
386 |
< |
try { |
387 |
< |
Thread.sleep(SHORT_DELAY_MS); |
388 |
< |
t.interrupt(); |
420 |
< |
t.join(); |
421 |
< |
} |
422 |
< |
catch (InterruptedException ie) { |
423 |
< |
unexpectedException(); |
424 |
< |
} |
386 |
> |
Thread.sleep(SHORT_DELAY_MS); |
387 |
> |
t.interrupt(); |
388 |
> |
t.join(); |
389 |
|
} |
390 |
|
|
391 |
|
|
395 |
|
public void testPoll() { |
396 |
|
PriorityBlockingQueue q = populatedQueue(SIZE); |
397 |
|
for (int i = 0; i < SIZE; ++i) { |
398 |
< |
assertEquals(i, ((Integer)q.poll()).intValue()); |
398 |
> |
assertEquals(i, q.poll()); |
399 |
|
} |
400 |
< |
assertNull(q.poll()); |
400 |
> |
assertNull(q.poll()); |
401 |
|
} |
402 |
|
|
403 |
|
/** |
404 |
< |
* timed pool with zero timeout succeeds when non-empty, else times out |
404 |
> |
* timed poll with zero timeout succeeds when non-empty, else times out |
405 |
|
*/ |
406 |
< |
public void testTimedPoll0() { |
407 |
< |
try { |
408 |
< |
PriorityBlockingQueue q = populatedQueue(SIZE); |
409 |
< |
for (int i = 0; i < SIZE; ++i) { |
410 |
< |
assertEquals(i, ((Integer)q.poll(0, TimeUnit.MILLISECONDS)).intValue()); |
411 |
< |
} |
448 |
< |
assertNull(q.poll(0, TimeUnit.MILLISECONDS)); |
449 |
< |
} catch (InterruptedException e){ |
450 |
< |
unexpectedException(); |
451 |
< |
} |
406 |
> |
public void testTimedPoll0() throws InterruptedException { |
407 |
> |
PriorityBlockingQueue q = populatedQueue(SIZE); |
408 |
> |
for (int i = 0; i < SIZE; ++i) { |
409 |
> |
assertEquals(i, q.poll(0, MILLISECONDS)); |
410 |
> |
} |
411 |
> |
assertNull(q.poll(0, MILLISECONDS)); |
412 |
|
} |
413 |
|
|
414 |
|
/** |
415 |
< |
* timed pool with nonzero timeout succeeds when non-empty, else times out |
415 |
> |
* timed poll with nonzero timeout succeeds when non-empty, else times out |
416 |
|
*/ |
417 |
< |
public void testTimedPoll() { |
418 |
< |
try { |
419 |
< |
PriorityBlockingQueue q = populatedQueue(SIZE); |
420 |
< |
for (int i = 0; i < SIZE; ++i) { |
421 |
< |
assertEquals(i, ((Integer)q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS)).intValue()); |
422 |
< |
} |
463 |
< |
assertNull(q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS)); |
464 |
< |
} catch (InterruptedException e){ |
465 |
< |
unexpectedException(); |
466 |
< |
} |
417 |
> |
public void testTimedPoll() throws InterruptedException { |
418 |
> |
PriorityBlockingQueue q = populatedQueue(SIZE); |
419 |
> |
for (int i = 0; i < SIZE; ++i) { |
420 |
> |
assertEquals(i, q.poll(SHORT_DELAY_MS, MILLISECONDS)); |
421 |
> |
} |
422 |
> |
assertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS)); |
423 |
|
} |
424 |
|
|
425 |
|
/** |
426 |
|
* Interrupted timed poll throws InterruptedException instead of |
427 |
|
* returning timeout status |
428 |
|
*/ |
429 |
< |
public void testInterruptedTimedPoll() { |
430 |
< |
Thread t = new Thread(new Runnable() { |
431 |
< |
public void run() { |
432 |
< |
try { |
433 |
< |
PriorityBlockingQueue q = populatedQueue(SIZE); |
434 |
< |
for (int i = 0; i < SIZE; ++i) { |
479 |
< |
threadAssertEquals(i, ((Integer)q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS)).intValue()); |
480 |
< |
} |
481 |
< |
threadAssertNull(q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS)); |
482 |
< |
} catch (InterruptedException success){ |
483 |
< |
} |
484 |
< |
}}); |
485 |
< |
t.start(); |
486 |
< |
try { |
487 |
< |
Thread.sleep(SHORT_DELAY_MS); |
488 |
< |
t.interrupt(); |
489 |
< |
t.join(); |
490 |
< |
} |
491 |
< |
catch (InterruptedException ie) { |
492 |
< |
unexpectedException(); |
493 |
< |
} |
494 |
< |
} |
495 |
< |
|
496 |
< |
/** |
497 |
< |
* timed poll before a delayed offer fails; after offer succeeds; |
498 |
< |
* on interruption throws |
499 |
< |
*/ |
500 |
< |
public void testTimedPollWithOffer() { |
501 |
< |
final PriorityBlockingQueue q = new PriorityBlockingQueue(2); |
502 |
< |
Thread t = new Thread(new Runnable() { |
503 |
< |
public void run() { |
504 |
< |
try { |
505 |
< |
threadAssertNull(q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS)); |
506 |
< |
q.poll(LONG_DELAY_MS, TimeUnit.MILLISECONDS); |
507 |
< |
q.poll(LONG_DELAY_MS, TimeUnit.MILLISECONDS); |
508 |
< |
threadShouldThrow(); |
509 |
< |
} catch (InterruptedException success) { } |
429 |
> |
public void testInterruptedTimedPoll() throws InterruptedException { |
430 |
> |
Thread t = new Thread(new CheckedRunnable() { |
431 |
> |
public void realRun() throws InterruptedException { |
432 |
> |
PriorityBlockingQueue q = populatedQueue(SIZE); |
433 |
> |
for (int i = 0; i < SIZE; ++i) { |
434 |
> |
assertEquals(i, q.poll(SHORT_DELAY_MS, MILLISECONDS)); |
435 |
|
} |
436 |
< |
}); |
437 |
< |
try { |
438 |
< |
t.start(); |
439 |
< |
Thread.sleep(SMALL_DELAY_MS); |
440 |
< |
assertTrue(q.offer(new Integer(0), SHORT_DELAY_MS, TimeUnit.MILLISECONDS)); |
516 |
< |
t.interrupt(); |
517 |
< |
t.join(); |
518 |
< |
} catch (Exception e){ |
519 |
< |
unexpectedException(); |
520 |
< |
} |
521 |
< |
} |
436 |
> |
try { |
437 |
> |
q.poll(SMALL_DELAY_MS, MILLISECONDS); |
438 |
> |
shouldThrow(); |
439 |
> |
} catch (InterruptedException success) {} |
440 |
> |
}}); |
441 |
|
|
442 |
+ |
t.start(); |
443 |
+ |
Thread.sleep(SHORT_DELAY_MS); |
444 |
+ |
t.interrupt(); |
445 |
+ |
t.join(); |
446 |
+ |
} |
447 |
|
|
448 |
|
/** |
449 |
|
* peek returns next element, or null if empty |
451 |
|
public void testPeek() { |
452 |
|
PriorityBlockingQueue q = populatedQueue(SIZE); |
453 |
|
for (int i = 0; i < SIZE; ++i) { |
454 |
< |
assertEquals(i, ((Integer)q.peek()).intValue()); |
455 |
< |
q.poll(); |
454 |
> |
assertEquals(i, q.peek()); |
455 |
> |
assertEquals(i, q.poll()); |
456 |
|
assertTrue(q.peek() == null || |
457 |
< |
i != ((Integer)q.peek()).intValue()); |
457 |
> |
!q.peek().equals(i)); |
458 |
|
} |
459 |
< |
assertNull(q.peek()); |
459 |
> |
assertNull(q.peek()); |
460 |
|
} |
461 |
|
|
462 |
|
/** |
465 |
|
public void testElement() { |
466 |
|
PriorityBlockingQueue q = populatedQueue(SIZE); |
467 |
|
for (int i = 0; i < SIZE; ++i) { |
468 |
< |
assertEquals(i, ((Integer)q.element()).intValue()); |
469 |
< |
q.poll(); |
468 |
> |
assertEquals(i, q.element()); |
469 |
> |
assertEquals(i, q.poll()); |
470 |
|
} |
471 |
|
try { |
472 |
|
q.element(); |
473 |
|
shouldThrow(); |
474 |
< |
} |
551 |
< |
catch (NoSuchElementException success) {} |
474 |
> |
} catch (NoSuchElementException success) {} |
475 |
|
} |
476 |
|
|
477 |
|
/** |
480 |
|
public void testRemove() { |
481 |
|
PriorityBlockingQueue q = populatedQueue(SIZE); |
482 |
|
for (int i = 0; i < SIZE; ++i) { |
483 |
< |
assertEquals(i, ((Integer)q.remove()).intValue()); |
483 |
> |
assertEquals(i, q.remove()); |
484 |
|
} |
485 |
|
try { |
486 |
|
q.remove(); |
487 |
|
shouldThrow(); |
488 |
< |
} catch (NoSuchElementException success){ |
566 |
< |
} |
488 |
> |
} catch (NoSuchElementException success) {} |
489 |
|
} |
490 |
|
|
491 |
|
/** |
502 |
|
} |
503 |
|
assertTrue(q.isEmpty()); |
504 |
|
} |
505 |
< |
|
505 |
> |
|
506 |
|
/** |
507 |
|
* contains(x) reports true when elements added but not yet removed |
508 |
|
*/ |
523 |
|
q.clear(); |
524 |
|
assertTrue(q.isEmpty()); |
525 |
|
assertEquals(0, q.size()); |
526 |
< |
assertEquals(NOCAP, q.remainingCapacity()); |
605 |
< |
q.add(new Integer(1)); |
526 |
> |
q.add(one); |
527 |
|
assertFalse(q.isEmpty()); |
528 |
+ |
assertTrue(q.contains(one)); |
529 |
|
q.clear(); |
530 |
|
assertTrue(q.isEmpty()); |
531 |
|
} |
580 |
|
} |
581 |
|
|
582 |
|
/** |
583 |
< |
* toArray contains all elements |
583 |
> |
* toArray contains all elements |
584 |
|
*/ |
585 |
< |
public void testToArray() { |
585 |
> |
public void testToArray() throws InterruptedException { |
586 |
|
PriorityBlockingQueue q = populatedQueue(SIZE); |
587 |
< |
Object[] o = q.toArray(); |
587 |
> |
Object[] o = q.toArray(); |
588 |
|
Arrays.sort(o); |
589 |
< |
try { |
590 |
< |
for(int i = 0; i < o.length; i++) |
669 |
< |
assertEquals(o[i], q.take()); |
670 |
< |
} catch (InterruptedException e){ |
671 |
< |
unexpectedException(); |
672 |
< |
} |
589 |
> |
for (int i = 0; i < o.length; i++) |
590 |
> |
assertSame(o[i], q.take()); |
591 |
|
} |
592 |
|
|
593 |
|
/** |
594 |
|
* toArray(a) contains all elements |
595 |
|
*/ |
596 |
< |
public void testToArray2() { |
597 |
< |
PriorityBlockingQueue q = populatedQueue(SIZE); |
598 |
< |
Integer[] ints = new Integer[SIZE]; |
599 |
< |
ints = (Integer[])q.toArray(ints); |
596 |
> |
public void testToArray2() throws InterruptedException { |
597 |
> |
PriorityBlockingQueue<Integer> q = populatedQueue(SIZE); |
598 |
> |
Integer[] ints = new Integer[SIZE]; |
599 |
> |
Integer[] array = q.toArray(ints); |
600 |
> |
assertSame(ints, array); |
601 |
|
Arrays.sort(ints); |
602 |
< |
try { |
603 |
< |
for(int i = 0; i < ints.length; i++) |
685 |
< |
assertEquals(ints[i], q.take()); |
686 |
< |
} catch (InterruptedException e){ |
687 |
< |
unexpectedException(); |
688 |
< |
} |
602 |
> |
for (int i = 0; i < ints.length; i++) |
603 |
> |
assertSame(ints[i], q.take()); |
604 |
|
} |
605 |
< |
|
605 |
> |
|
606 |
> |
/** |
607 |
> |
* toArray(null) throws NullPointerException |
608 |
> |
*/ |
609 |
> |
public void testToArray_NullArg() { |
610 |
> |
PriorityBlockingQueue q = populatedQueue(SIZE); |
611 |
> |
try { |
612 |
> |
q.toArray(null); |
613 |
> |
shouldThrow(); |
614 |
> |
} catch (NullPointerException success) {} |
615 |
> |
} |
616 |
> |
|
617 |
> |
/** |
618 |
> |
* toArray(incompatible array type) throws ArrayStoreException |
619 |
> |
*/ |
620 |
> |
public void testToArray1_BadArg() { |
621 |
> |
PriorityBlockingQueue q = populatedQueue(SIZE); |
622 |
> |
try { |
623 |
> |
q.toArray(new String[10]); |
624 |
> |
shouldThrow(); |
625 |
> |
} catch (ArrayStoreException success) {} |
626 |
> |
} |
627 |
> |
|
628 |
|
/** |
629 |
|
* iterator iterates through all elements |
630 |
|
*/ |
631 |
|
public void testIterator() { |
632 |
|
PriorityBlockingQueue q = populatedQueue(SIZE); |
633 |
|
int i = 0; |
634 |
< |
Iterator it = q.iterator(); |
635 |
< |
while(it.hasNext()) { |
634 |
> |
Iterator it = q.iterator(); |
635 |
> |
while (it.hasNext()) { |
636 |
|
assertTrue(q.contains(it.next())); |
637 |
|
++i; |
638 |
|
} |
642 |
|
/** |
643 |
|
* iterator.remove removes current element |
644 |
|
*/ |
645 |
< |
public void testIteratorRemove () { |
645 |
> |
public void testIteratorRemove() { |
646 |
|
final PriorityBlockingQueue q = new PriorityBlockingQueue(3); |
647 |
|
q.add(new Integer(2)); |
648 |
|
q.add(new Integer(1)); |
668 |
|
for (int i = 0; i < SIZE; ++i) { |
669 |
|
assertTrue(s.indexOf(String.valueOf(i)) >= 0); |
670 |
|
} |
671 |
< |
} |
671 |
> |
} |
672 |
|
|
673 |
|
/** |
674 |
|
* offer transfers elements across Executor tasks |
676 |
|
public void testPollInExecutor() { |
677 |
|
final PriorityBlockingQueue q = new PriorityBlockingQueue(2); |
678 |
|
ExecutorService executor = Executors.newFixedThreadPool(2); |
679 |
< |
executor.execute(new Runnable() { |
680 |
< |
public void run() { |
681 |
< |
threadAssertNull(q.poll()); |
682 |
< |
try { |
683 |
< |
threadAssertTrue(null != q.poll(MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS)); |
684 |
< |
threadAssertTrue(q.isEmpty()); |
685 |
< |
} |
686 |
< |
catch (InterruptedException e) { |
687 |
< |
threadUnexpectedException(); |
688 |
< |
} |
689 |
< |
} |
690 |
< |
}); |
679 |
> |
executor.execute(new CheckedRunnable() { |
680 |
> |
public void realRun() throws InterruptedException { |
681 |
> |
assertNull(q.poll()); |
682 |
> |
assertSame(one, q.poll(MEDIUM_DELAY_MS, MILLISECONDS)); |
683 |
> |
assertTrue(q.isEmpty()); |
684 |
> |
}}); |
685 |
> |
|
686 |
> |
executor.execute(new CheckedRunnable() { |
687 |
> |
public void realRun() throws InterruptedException { |
688 |
> |
Thread.sleep(SMALL_DELAY_MS); |
689 |
> |
q.put(one); |
690 |
> |
}}); |
691 |
|
|
755 |
– |
executor.execute(new Runnable() { |
756 |
– |
public void run() { |
757 |
– |
try { |
758 |
– |
Thread.sleep(SMALL_DELAY_MS); |
759 |
– |
q.put(new Integer(1)); |
760 |
– |
} |
761 |
– |
catch (InterruptedException e) { |
762 |
– |
threadUnexpectedException(); |
763 |
– |
} |
764 |
– |
} |
765 |
– |
}); |
766 |
– |
|
692 |
|
joinPool(executor); |
693 |
|
} |
694 |
|
|
695 |
|
/** |
696 |
< |
* A deserialized serialized queue has same elements |
696 |
> |
* A deserialized serialized queue has same elements |
697 |
> |
*/ |
698 |
> |
public void testSerialization() throws Exception { |
699 |
> |
PriorityBlockingQueue q = populatedQueue(SIZE); |
700 |
> |
ByteArrayOutputStream bout = new ByteArrayOutputStream(10000); |
701 |
> |
ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout)); |
702 |
> |
out.writeObject(q); |
703 |
> |
out.close(); |
704 |
> |
|
705 |
> |
ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray()); |
706 |
> |
ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin)); |
707 |
> |
PriorityBlockingQueue r = (PriorityBlockingQueue)in.readObject(); |
708 |
> |
assertEquals(q.size(), r.size()); |
709 |
> |
while (!q.isEmpty()) |
710 |
> |
assertEquals(q.remove(), r.remove()); |
711 |
> |
} |
712 |
> |
|
713 |
> |
/** |
714 |
> |
* drainTo(null) throws NPE |
715 |
|
*/ |
716 |
< |
public void testSerialization() { |
716 |
> |
public void testDrainToNull() { |
717 |
|
PriorityBlockingQueue q = populatedQueue(SIZE); |
718 |
|
try { |
719 |
< |
ByteArrayOutputStream bout = new ByteArrayOutputStream(10000); |
720 |
< |
ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout)); |
721 |
< |
out.writeObject(q); |
722 |
< |
out.close(); |
723 |
< |
|
724 |
< |
ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray()); |
725 |
< |
ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin)); |
726 |
< |
PriorityBlockingQueue r = (PriorityBlockingQueue)in.readObject(); |
727 |
< |
assertEquals(q.size(), r.size()); |
728 |
< |
while (!q.isEmpty()) |
729 |
< |
assertEquals(q.remove(), r.remove()); |
730 |
< |
} catch(Exception e){ |
731 |
< |
unexpectedException(); |
719 |
> |
q.drainTo(null); |
720 |
> |
shouldThrow(); |
721 |
> |
} catch (NullPointerException success) {} |
722 |
> |
} |
723 |
> |
|
724 |
> |
/** |
725 |
> |
* drainTo(this) throws IAE |
726 |
> |
*/ |
727 |
> |
public void testDrainToSelf() { |
728 |
> |
PriorityBlockingQueue q = populatedQueue(SIZE); |
729 |
> |
try { |
730 |
> |
q.drainTo(q); |
731 |
> |
shouldThrow(); |
732 |
> |
} catch (IllegalArgumentException success) {} |
733 |
> |
} |
734 |
> |
|
735 |
> |
/** |
736 |
> |
* drainTo(c) empties queue into another collection c |
737 |
> |
*/ |
738 |
> |
public void testDrainTo() { |
739 |
> |
PriorityBlockingQueue q = populatedQueue(SIZE); |
740 |
> |
ArrayList l = new ArrayList(); |
741 |
> |
q.drainTo(l); |
742 |
> |
assertEquals(q.size(), 0); |
743 |
> |
assertEquals(l.size(), SIZE); |
744 |
> |
for (int i = 0; i < SIZE; ++i) |
745 |
> |
assertEquals(l.get(i), new Integer(i)); |
746 |
> |
q.add(zero); |
747 |
> |
q.add(one); |
748 |
> |
assertFalse(q.isEmpty()); |
749 |
> |
assertTrue(q.contains(zero)); |
750 |
> |
assertTrue(q.contains(one)); |
751 |
> |
l.clear(); |
752 |
> |
q.drainTo(l); |
753 |
> |
assertEquals(q.size(), 0); |
754 |
> |
assertEquals(l.size(), 2); |
755 |
> |
for (int i = 0; i < 2; ++i) |
756 |
> |
assertEquals(l.get(i), new Integer(i)); |
757 |
> |
} |
758 |
> |
|
759 |
> |
/** |
760 |
> |
* drainTo empties queue |
761 |
> |
*/ |
762 |
> |
public void testDrainToWithActivePut() throws InterruptedException { |
763 |
> |
final PriorityBlockingQueue q = populatedQueue(SIZE); |
764 |
> |
Thread t = new Thread(new CheckedRunnable() { |
765 |
> |
public void realRun() { |
766 |
> |
q.put(new Integer(SIZE+1)); |
767 |
> |
}}); |
768 |
> |
|
769 |
> |
t.start(); |
770 |
> |
ArrayList l = new ArrayList(); |
771 |
> |
q.drainTo(l); |
772 |
> |
assertTrue(l.size() >= SIZE); |
773 |
> |
for (int i = 0; i < SIZE; ++i) |
774 |
> |
assertEquals(l.get(i), new Integer(i)); |
775 |
> |
t.join(); |
776 |
> |
assertTrue(q.size() + l.size() >= SIZE); |
777 |
> |
} |
778 |
> |
|
779 |
> |
/** |
780 |
> |
* drainTo(null, n) throws NPE |
781 |
> |
*/ |
782 |
> |
public void testDrainToNullN() { |
783 |
> |
PriorityBlockingQueue q = populatedQueue(SIZE); |
784 |
> |
try { |
785 |
> |
q.drainTo(null, 0); |
786 |
> |
shouldThrow(); |
787 |
> |
} catch (NullPointerException success) {} |
788 |
> |
} |
789 |
> |
|
790 |
> |
/** |
791 |
> |
* drainTo(this, n) throws IAE |
792 |
> |
*/ |
793 |
> |
public void testDrainToSelfN() { |
794 |
> |
PriorityBlockingQueue q = populatedQueue(SIZE); |
795 |
> |
try { |
796 |
> |
q.drainTo(q, 0); |
797 |
> |
shouldThrow(); |
798 |
> |
} catch (IllegalArgumentException success) {} |
799 |
> |
} |
800 |
> |
|
801 |
> |
/** |
802 |
> |
* drainTo(c, n) empties first min(n, size) elements of queue into c |
803 |
> |
*/ |
804 |
> |
public void testDrainToN() { |
805 |
> |
PriorityBlockingQueue q = new PriorityBlockingQueue(SIZE*2); |
806 |
> |
for (int i = 0; i < SIZE + 2; ++i) { |
807 |
> |
for (int j = 0; j < SIZE; j++) |
808 |
> |
assertTrue(q.offer(new Integer(j))); |
809 |
> |
ArrayList l = new ArrayList(); |
810 |
> |
q.drainTo(l, i); |
811 |
> |
int k = (i < SIZE) ? i : SIZE; |
812 |
> |
assertEquals(l.size(), k); |
813 |
> |
assertEquals(q.size(), SIZE-k); |
814 |
> |
for (int j = 0; j < k; ++j) |
815 |
> |
assertEquals(l.get(j), new Integer(j)); |
816 |
> |
while (q.poll() != null) ; |
817 |
|
} |
818 |
|
} |
819 |
|
|