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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.Arrays; |
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import static java.util.concurrent.TimeUnit.MILLISECONDS; |
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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.Comparator; |
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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.PriorityBlockingQueue; |
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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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import static java.util.concurrent.TimeUnit.MILLISECONDS; |
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import java.util.concurrent.PriorityBlockingQueue; |
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import junit.framework.Test; |
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public class PriorityBlockingQueueTest extends JSR166TestCase { |
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} |
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public static void main(String[] args) { |
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junit.textui.TestRunner.run(suite()); |
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main(suite(), args); |
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} |
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public static Test suite() { |
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new InitialCapacity().testSuite()); |
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} |
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private static final int NOCAP = Integer.MAX_VALUE; |
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/** Sample 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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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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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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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(Integer.MAX_VALUE, q.remainingCapacity()); |
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assertEquals(n, q.size()); |
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return q; |
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} |
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* A new queue has unbounded capacity |
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*/ |
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public void testConstructor1() { |
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assertEquals(NOCAP, new PriorityBlockingQueue(SIZE).remainingCapacity()); |
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assertEquals(Integer.MAX_VALUE, |
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new PriorityBlockingQueue(SIZE).remainingCapacity()); |
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} |
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/** |
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public void testEmpty() { |
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PriorityBlockingQueue q = new PriorityBlockingQueue(2); |
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assertTrue(q.isEmpty()); |
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assertEquals(NOCAP, q.remainingCapacity()); |
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assertEquals(Integer.MAX_VALUE, q.remainingCapacity()); |
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q.add(one); |
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assertFalse(q.isEmpty()); |
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q.add(two); |
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} |
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/** |
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* remainingCapacity does not change when elements added or removed, |
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* but size does |
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* remainingCapacity() always returns Integer.MAX_VALUE |
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*/ |
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public void testRemainingCapacity() { |
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PriorityBlockingQueue q = populatedQueue(SIZE); |
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BlockingQueue q = populatedQueue(SIZE); |
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for (int i = 0; i < SIZE; ++i) { |
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assertEquals(NOCAP, q.remainingCapacity()); |
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assertEquals(SIZE-i, q.size()); |
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q.remove(); |
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assertEquals(Integer.MAX_VALUE, q.remainingCapacity()); |
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assertEquals(SIZE - i, q.size()); |
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assertEquals(i, q.remove()); |
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} |
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for (int i = 0; i < SIZE; ++i) { |
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assertEquals(NOCAP, q.remainingCapacity()); |
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assertEquals(Integer.MAX_VALUE, q.remainingCapacity()); |
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assertEquals(i, q.size()); |
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q.add(new Integer(i)); |
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assertTrue(q.add(i)); |
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} |
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} |
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* Offer of non-Comparable throws CCE |
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*/ |
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public void testOfferNonComparable() { |
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PriorityBlockingQueue q = new PriorityBlockingQueue(1); |
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try { |
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PriorityBlockingQueue q = new PriorityBlockingQueue(1); |
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q.offer(new Object()); |
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q.offer(new Object()); |
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q.offer(new Object()); |
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shouldThrow(); |
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* addAll(this) throws IAE |
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*/ |
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public void testAddAllSelf() { |
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PriorityBlockingQueue q = populatedQueue(SIZE); |
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try { |
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PriorityBlockingQueue q = populatedQueue(SIZE); |
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q.addAll(q); |
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shouldThrow(); |
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} catch (IllegalArgumentException success) {} |
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* possibly adding some elements |
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*/ |
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public void testAddAll3() { |
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PriorityBlockingQueue q = new PriorityBlockingQueue(SIZE); |
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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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try { |
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PriorityBlockingQueue q = new PriorityBlockingQueue(SIZE); |
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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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q.addAll(Arrays.asList(ints)); |
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shouldThrow(); |
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} catch (NullPointerException success) {} |
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public void testPut() { |
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PriorityBlockingQueue q = new PriorityBlockingQueue(SIZE); |
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for (int i = 0; i < SIZE; ++i) { |
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Integer I = new Integer(i); |
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q.put(I); |
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assertTrue(q.contains(I)); |
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Integer x = new Integer(i); |
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q.put(x); |
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assertTrue(q.contains(x)); |
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} |
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assertEquals(SIZE, q.size()); |
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} |
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assertTrue(q.removeAll(p)); |
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assertEquals(SIZE-i, q.size()); |
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for (int j = 0; j < i; ++j) { |
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Integer I = (Integer)(p.remove()); |
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assertFalse(q.contains(I)); |
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Integer x = (Integer)(p.remove()); |
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assertFalse(q.contains(x)); |
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} |
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} |
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} |
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*/ |
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public void testIterator() { |
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PriorityBlockingQueue q = populatedQueue(SIZE); |
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int i = 0; |
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Iterator it = q.iterator(); |
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while (it.hasNext()) { |
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int i; |
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for (i = 0; it.hasNext(); i++) |
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assertTrue(q.contains(it.next())); |
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++i; |
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} |
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assertEquals(i, SIZE); |
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assertIteratorExhausted(it); |
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} |
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|
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/** |
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* iterator of empty collection has no elements |
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*/ |
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public void testEmptyIterator() { |
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assertIteratorExhausted(new PriorityBlockingQueue().iterator()); |
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} |
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/** |
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assertEquals(SIZE-k, q.size()); |
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for (int j = 0; j < k; ++j) |
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assertEquals(l.get(j), new Integer(j)); |
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while (q.poll() != null) ; |
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do {} while (q.poll() != null); |
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} |
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} |
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