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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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public class PriorityBlockingQueueTest extends JSR166TestCase { |
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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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public static Test suite() { |
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return new TestSuite(PriorityBlockingQueueTest.class); |
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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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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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private PriorityBlockingQueue populatedQueue(int n) { |
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PriorityBlockingQueue q = new PriorityBlockingQueue(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(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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* A new queue has unbounded capacity |
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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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PriorityBlockingQueue q = new PriorityBlockingQueue(1); |
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q.offer(null); |
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shouldThrow(); |
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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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PriorityBlockingQueue q = new PriorityBlockingQueue(1); |
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q.add(null); |
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shouldThrow(); |
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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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q.offer(new Object()); |
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shouldThrow(); |
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} |
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catch(ClassCastException success) {} |
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catch (ClassCastException success) {} |
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} |
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/** |
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PriorityBlockingQueue q = new PriorityBlockingQueue(SIZE); |
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q.put(null); |
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shouldThrow(); |
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} |
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} |
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catch (NullPointerException success){ |
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} |
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} |
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} |
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/** |
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} finally { } |
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} |
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}); |
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|
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try { |
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t.start(); |
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Thread.sleep(SMALL_DELAY_MS); |
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} |
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} catch (InterruptedException e){ |
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unexpectedException(); |
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} |
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} |
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} |
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/** |
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try { |
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q.take(); |
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threadShouldThrow(); |
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} catch (InterruptedException success){ } |
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} catch (InterruptedException success){ } |
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} |
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}); |
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try { |
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q.take(); |
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threadShouldThrow(); |
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} catch (InterruptedException success){ |
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} |
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} |
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}}); |
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t.start(); |
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try { |
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Thread.sleep(SHORT_DELAY_MS); |
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try { |
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Thread.sleep(SHORT_DELAY_MS); |
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t.interrupt(); |
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t.join(); |
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} |
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assertNull(q.poll(0, TimeUnit.MILLISECONDS)); |
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} catch (InterruptedException e){ |
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unexpectedException(); |
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} |
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} |
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} |
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/** |
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assertNull(q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS)); |
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} catch (InterruptedException e){ |
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unexpectedException(); |
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} |
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} |
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} |
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/** |
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} |
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threadAssertNull(q.poll(SHORT_DELAY_MS, TimeUnit.MILLISECONDS)); |
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} catch (InterruptedException success){ |
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} |
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} |
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}}); |
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t.start(); |
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try { |
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Thread.sleep(SHORT_DELAY_MS); |
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try { |
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Thread.sleep(SHORT_DELAY_MS); |
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t.interrupt(); |
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t.join(); |
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} |
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q.poll(LONG_DELAY_MS, TimeUnit.MILLISECONDS); |
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q.poll(LONG_DELAY_MS, TimeUnit.MILLISECONDS); |
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threadShouldThrow(); |
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} catch (InterruptedException success) { } |
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} catch (InterruptedException success) { } |
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} |
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}); |
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try { |
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} catch (Exception e){ |
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unexpectedException(); |
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} |
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} |
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} |
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/** |
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q.remove(); |
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shouldThrow(); |
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} catch (NoSuchElementException success){ |
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} |
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} |
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} |
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/** |
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} |
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assertTrue(q.isEmpty()); |
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} |
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|
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/** |
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* contains(x) reports true when elements added but not yet removed |
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*/ |
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q.clear(); |
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assertTrue(q.isEmpty()); |
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assertEquals(0, q.size()); |
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assertEquals(NOCAP, q.remainingCapacity()); |
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q.add(new Integer(1)); |
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q.add(one); |
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assertFalse(q.isEmpty()); |
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assertTrue(q.contains(one)); |
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q.clear(); |
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assertTrue(q.isEmpty()); |
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} |
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Object[] o = q.toArray(); |
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Arrays.sort(o); |
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try { |
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for(int i = 0; i < o.length; i++) |
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for (int i = 0; i < o.length; i++) |
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assertEquals(o[i], q.take()); |
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} catch (InterruptedException e){ |
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unexpectedException(); |
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} |
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} |
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} |
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/** |
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ints = (Integer[])q.toArray(ints); |
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Arrays.sort(ints); |
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try { |
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for(int i = 0; i < ints.length; i++) |
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for (int i = 0; i < ints.length; i++) |
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assertEquals(ints[i], q.take()); |
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} catch (InterruptedException e){ |
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unexpectedException(); |
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} |
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} |
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} |
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/** |
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PriorityBlockingQueue q = populatedQueue(SIZE); |
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Object o[] = q.toArray(null); |
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shouldThrow(); |
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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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* toArray with incompatable array type throws CCE |
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* toArray with incompatible array type throws CCE |
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*/ |
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public void testToArray1_BadArg() { |
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try { |
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PriorityBlockingQueue q = populatedQueue(SIZE); |
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Object o[] = q.toArray(new String[10] ); |
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shouldThrow(); |
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} catch(ArrayStoreException success){} |
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} catch (ArrayStoreException success){} |
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} |
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|
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/** |
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* iterator iterates through all elements |
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*/ |
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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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while (it.hasNext()) { |
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assertTrue(q.contains(it.next())); |
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++i; |
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} |
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for (int i = 0; i < SIZE; ++i) { |
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assertTrue(s.indexOf(String.valueOf(i)) >= 0); |
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} |
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} |
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} |
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|
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/** |
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* offer transfers elements across Executor tasks |
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} |
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} |
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}); |
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|
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joinPool(executor); |
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} |
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/** |
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* A deserialized serialized queue has same elements |
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* A deserialized serialized queue has same elements |
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*/ |
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public void testSerialization() { |
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PriorityBlockingQueue q = populatedQueue(SIZE); |
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ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin)); |
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PriorityBlockingQueue r = (PriorityBlockingQueue)in.readObject(); |
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assertEquals(q.size(), r.size()); |
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while (!q.isEmpty()) |
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while (!q.isEmpty()) |
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assertEquals(q.remove(), r.remove()); |
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} catch(Exception e){ |
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} catch (Exception e){ |
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unexpectedException(); |
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} |
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} |
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|
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/** |
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* drainTo(null) throws NPE |
841 |
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*/ |
841 |
> |
*/ |
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public void testDrainToNull() { |
843 |
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PriorityBlockingQueue q = populatedQueue(SIZE); |
844 |
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try { |
845 |
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q.drainTo(null); |
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shouldThrow(); |
847 |
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} catch(NullPointerException success) { |
847 |
> |
} catch (NullPointerException success) { |
848 |
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} |
849 |
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} |
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|
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/** |
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* drainTo(this) throws IAE |
853 |
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*/ |
853 |
> |
*/ |
854 |
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public void testDrainToSelf() { |
855 |
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PriorityBlockingQueue q = populatedQueue(SIZE); |
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try { |
857 |
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q.drainTo(q); |
858 |
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shouldThrow(); |
859 |
< |
} catch(IllegalArgumentException success) { |
859 |
> |
} catch (IllegalArgumentException success) { |
860 |
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} |
861 |
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} |
862 |
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|
863 |
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/** |
864 |
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* drainTo(c) empties queue into another collection c |
865 |
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*/ |
865 |
> |
*/ |
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public void testDrainTo() { |
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PriorityBlockingQueue q = populatedQueue(SIZE); |
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ArrayList l = new ArrayList(); |
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q.drainTo(l); |
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assertEquals(q.size(), 0); |
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assertEquals(l.size(), SIZE); |
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for (int i = 0; i < SIZE; ++i) |
872 |
> |
for (int i = 0; i < SIZE; ++i) |
873 |
> |
assertEquals(l.get(i), new Integer(i)); |
874 |
> |
q.add(zero); |
875 |
> |
q.add(one); |
876 |
> |
assertFalse(q.isEmpty()); |
877 |
> |
assertTrue(q.contains(zero)); |
878 |
> |
assertTrue(q.contains(one)); |
879 |
> |
l.clear(); |
880 |
> |
q.drainTo(l); |
881 |
> |
assertEquals(q.size(), 0); |
882 |
> |
assertEquals(l.size(), 2); |
883 |
> |
for (int i = 0; i < 2; ++i) |
884 |
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assertEquals(l.get(i), new Integer(i)); |
885 |
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} |
886 |
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|
887 |
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/** |
888 |
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* drainTo empties queue |
889 |
< |
*/ |
889 |
> |
*/ |
890 |
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public void testDrainToWithActivePut() { |
891 |
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final PriorityBlockingQueue q = populatedQueue(SIZE); |
892 |
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Thread t = new Thread(new Runnable() { |
899 |
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ArrayList l = new ArrayList(); |
900 |
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q.drainTo(l); |
901 |
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assertTrue(l.size() >= SIZE); |
902 |
< |
for (int i = 0; i < SIZE; ++i) |
902 |
> |
for (int i = 0; i < SIZE; ++i) |
903 |
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assertEquals(l.get(i), new Integer(i)); |
904 |
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t.join(); |
905 |
< |
assertTrue(q.size() + l.size() == SIZE+1); |
906 |
< |
} catch(Exception e){ |
905 |
> |
assertTrue(q.size() + l.size() >= SIZE); |
906 |
> |
} catch (Exception e){ |
907 |
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unexpectedException(); |
908 |
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} |
909 |
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} |
910 |
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|
911 |
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/** |
912 |
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* drainTo(null, n) throws NPE |
913 |
< |
*/ |
913 |
> |
*/ |
914 |
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public void testDrainToNullN() { |
915 |
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PriorityBlockingQueue q = populatedQueue(SIZE); |
916 |
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try { |
917 |
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q.drainTo(null, 0); |
918 |
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shouldThrow(); |
919 |
< |
} catch(NullPointerException success) { |
919 |
> |
} catch (NullPointerException success) { |
920 |
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} |
921 |
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} |
922 |
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|
923 |
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/** |
924 |
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* drainTo(this, n) throws IAE |
925 |
< |
*/ |
925 |
> |
*/ |
926 |
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public void testDrainToSelfN() { |
927 |
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PriorityBlockingQueue q = populatedQueue(SIZE); |
928 |
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try { |
929 |
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q.drainTo(q, 0); |
930 |
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shouldThrow(); |
931 |
< |
} catch(IllegalArgumentException success) { |
931 |
> |
} catch (IllegalArgumentException success) { |
932 |
|
} |
933 |
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} |
934 |
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|
935 |
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/** |
936 |
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* drainTo(c, n) empties first max {n, size} elements of queue into c |
937 |
< |
*/ |
937 |
> |
*/ |
938 |
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public void testDrainToN() { |
939 |
+ |
PriorityBlockingQueue q = new PriorityBlockingQueue(SIZE*2); |
940 |
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for (int i = 0; i < SIZE + 2; ++i) { |
941 |
< |
PriorityBlockingQueue q = populatedQueue(SIZE); |
941 |
> |
for (int j = 0; j < SIZE; j++) |
942 |
> |
assertTrue(q.offer(new Integer(j))); |
943 |
|
ArrayList l = new ArrayList(); |
944 |
|
q.drainTo(l, i); |
945 |
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int k = (i < SIZE)? i : SIZE; |
932 |
– |
assertEquals(q.size(), SIZE-k); |
946 |
|
assertEquals(l.size(), k); |
947 |
< |
for (int j = 0; j < k; ++j) |
948 |
< |
assertTrue(l.contains(new Integer(j))); |
947 |
> |
assertEquals(q.size(), SIZE-k); |
948 |
> |
for (int j = 0; j < k; ++j) |
949 |
> |
assertEquals(l.get(j), new Integer(j)); |
950 |
> |
while (q.poll() != null) ; |
951 |
|
} |
952 |
|
} |
953 |
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|