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/* |
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* Written by Doug Lea with assistance from members of JCP JSR-166 |
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* Expert Group and released to the public domain, as explained at |
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* http://creativecommons.org/licenses/publicdomain |
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* http://creativecommons.org/publicdomain/zero/1.0/ |
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*/ |
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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.Arrays; |
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import java.util.Comparator; |
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import java.util.Iterator; |
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import java.util.NavigableSet; |
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import java.util.SortedSet; |
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import java.util.concurrent.ConcurrentSkipListSet; |
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public class ConcurrentSkipListSubSetTest 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(ConcurrentSkipListSubSetTest.class); |
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|
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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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/** |
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* Create a set of given size containing consecutive |
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* Returns a new set of given size containing consecutive |
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* Integers 0 ... n. |
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*/ |
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private NavigableSet populatedSet(int n) { |
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ConcurrentSkipListSet q = new ConcurrentSkipListSet(); |
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private NavigableSet<Integer> populatedSet(int n) { |
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ConcurrentSkipListSet<Integer> q = |
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new ConcurrentSkipListSet<Integer>(); |
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assertTrue(q.isEmpty()); |
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|
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for (int i = n-1; i >= 0; i-=2) |
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} |
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|
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/** |
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* Create set of first 5 ints |
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* Returns a new set of first 5 ints. |
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*/ |
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private NavigableSet set5() { |
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ConcurrentSkipListSet q = new ConcurrentSkipListSet(); |
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} |
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/** |
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* Create set of first 5 negative ints |
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* Returns a new set of first 5 negative ints. |
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*/ |
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private NavigableSet dset5() { |
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ConcurrentSkipListSet q = new ConcurrentSkipListSet(); |
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assertEquals(0, set0().size()); |
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} |
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|
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– |
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/** |
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* isEmpty is true before add, false after |
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*/ |
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} catch (ClassCastException success) {} |
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} |
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|
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– |
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/** |
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* addAll(null) throws NPE |
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*/ |
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shouldThrow(); |
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} catch (NullPointerException success) {} |
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} |
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|
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/** |
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* addAll of a collection with null elements throws NPE |
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*/ |
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shouldThrow(); |
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} catch (NullPointerException success) {} |
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} |
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|
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/** |
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* addAll of a collection with any null elements throws NPE after |
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* possibly adding some elements |
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* Set contains all elements of successful addAll |
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*/ |
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public void testAddAll5() { |
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try { |
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Integer[] empty = new Integer[0]; |
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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(SIZE-1- i); |
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NavigableSet q = set0(); |
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assertFalse(q.addAll(Arrays.asList(empty))); |
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assertTrue(q.addAll(Arrays.asList(ints))); |
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for (int i = 0; i < SIZE; ++i) |
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assertEquals(new Integer(i), q.pollFirst()); |
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} |
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finally {} |
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Integer[] empty = new Integer[0]; |
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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(SIZE-1- i); |
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NavigableSet q = set0(); |
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assertFalse(q.addAll(Arrays.asList(empty))); |
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assertTrue(q.addAll(Arrays.asList(ints))); |
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for (int i = 0; i < SIZE; ++i) |
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assertEquals(new Integer(i), q.pollFirst()); |
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} |
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/** |
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public void testPoll() { |
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NavigableSet q = populatedSet(SIZE); |
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for (int i = 0; i < SIZE; ++i) { |
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assertEquals(i, ((Integer)q.pollFirst()).intValue()); |
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assertEquals(i, q.pollFirst()); |
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} |
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assertNull(q.pollFirst()); |
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} |
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public void testRemoveElement() { |
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NavigableSet q = populatedSet(SIZE); |
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for (int i = 1; i < SIZE; i+=2) { |
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assertTrue(q.remove(new Integer(i))); |
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assertTrue(q.contains(i)); |
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assertTrue(q.remove(i)); |
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assertFalse(q.contains(i)); |
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assertTrue(q.contains(i-1)); |
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} |
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for (int i = 0; i < SIZE; i+=2) { |
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assertTrue(q.remove(new Integer(i))); |
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assertFalse(q.remove(new Integer(i+1))); |
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assertTrue(q.contains(i)); |
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assertTrue(q.remove(i)); |
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assertFalse(q.contains(i)); |
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assertFalse(q.remove(i+1)); |
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assertFalse(q.contains(i+1)); |
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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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|
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– |
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– |
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/** |
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* lower returns preceding element |
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*/ |
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Object e4 = q.lower(zero); |
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assertNull(e4); |
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– |
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} |
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/** |
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Object e4 = q.higher(six); |
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assertNull(e4); |
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– |
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} |
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/** |
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Object e4 = q.floor(zero); |
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assertNull(e4); |
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– |
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} |
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/** |
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Object e4 = q.ceiling(six); |
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assertNull(e4); |
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} |
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|
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/** |
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* toArray contains all elements |
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* toArray contains all elements in sorted order |
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*/ |
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public void testToArray() { |
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NavigableSet q = populatedSet(SIZE); |
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Object[] o = q.toArray(); |
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Arrays.sort(o); |
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for (int i = 0; i < o.length; i++) |
412 |
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assertEquals(o[i], q.pollFirst()); |
412 |
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assertSame(o[i], q.pollFirst()); |
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} |
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|
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/** |
416 |
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* toArray(a) contains all elements |
416 |
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* toArray(a) contains all elements in sorted order |
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*/ |
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public void testToArray2() { |
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NavigableSet q = populatedSet(SIZE); |
419 |
> |
NavigableSet<Integer> q = populatedSet(SIZE); |
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Integer[] ints = new Integer[SIZE]; |
421 |
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ints = (Integer[])q.toArray(ints); |
422 |
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Arrays.sort(ints); |
421 |
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Integer[] array = q.toArray(ints); |
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assertSame(ints, array); |
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for (int i = 0; i < ints.length; i++) |
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assertEquals(ints[i], q.pollFirst()); |
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assertSame(ints[i], q.pollFirst()); |
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} |
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/** |
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assertTrue(q.contains(it.next())); |
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++i; |
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} |
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assertEquals(i, 0); |
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assertEquals(0, i); |
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} |
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/** |
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* iterator.remove removes current element |
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*/ |
458 |
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public void testIteratorRemove () { |
458 |
> |
public void testIteratorRemove() { |
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final NavigableSet q = set0(); |
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q.add(new Integer(2)); |
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q.add(new Integer(1)); |
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assertFalse(it.hasNext()); |
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} |
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|
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– |
|
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/** |
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* toString contains toStrings of elements |
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*/ |
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NavigableSet q = populatedSet(SIZE); |
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String s = q.toString(); |
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for (int i = 0; i < SIZE; ++i) { |
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assertTrue(s.indexOf(String.valueOf(i)) >= 0); |
481 |
> |
assertTrue(s.contains(String.valueOf(i))); |
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} |
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} |
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|
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* A deserialized serialized set has same elements |
487 |
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*/ |
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public void testSerialization() throws Exception { |
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< |
NavigableSet q = populatedSet(SIZE); |
490 |
< |
ByteArrayOutputStream bout = new ByteArrayOutputStream(10000); |
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< |
ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout)); |
492 |
< |
out.writeObject(q); |
493 |
< |
out.close(); |
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|
495 |
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ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray()); |
496 |
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ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin)); |
497 |
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NavigableSet r = (NavigableSet)in.readObject(); |
498 |
< |
assertEquals(q.size(), r.size()); |
499 |
< |
while (!q.isEmpty()) |
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assertEquals(q.pollFirst(), r.pollFirst()); |
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> |
NavigableSet x = populatedSet(SIZE); |
490 |
> |
NavigableSet y = serialClone(x); |
491 |
> |
|
492 |
> |
assertNotSame(y, x); |
493 |
> |
assertEquals(x.size(), y.size()); |
494 |
> |
assertEquals(x, y); |
495 |
> |
assertEquals(y, x); |
496 |
> |
while (!x.isEmpty()) { |
497 |
> |
assertFalse(y.isEmpty()); |
498 |
> |
assertEquals(x.pollFirst(), y.pollFirst()); |
499 |
> |
} |
500 |
> |
assertTrue(y.isEmpty()); |
501 |
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} |
502 |
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|
503 |
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/** |
675 |
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} catch (ClassCastException success) {} |
676 |
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} |
677 |
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|
683 |
– |
|
678 |
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/** |
679 |
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* addAll(null) throws NPE |
680 |
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*/ |
685 |
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shouldThrow(); |
686 |
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} catch (NullPointerException success) {} |
687 |
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} |
688 |
+ |
|
689 |
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/** |
690 |
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* addAll of a collection with null elements throws NPE |
691 |
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*/ |
697 |
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shouldThrow(); |
698 |
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} catch (NullPointerException success) {} |
699 |
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} |
700 |
+ |
|
701 |
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/** |
702 |
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* addAll of a collection with any null elements throws NPE after |
703 |
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* possibly adding some elements |
717 |
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* Set contains all elements of successful addAll |
718 |
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*/ |
719 |
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public void testDescendingAddAll5() { |
720 |
< |
try { |
721 |
< |
Integer[] empty = new Integer[0]; |
722 |
< |
Integer[] ints = new Integer[SIZE]; |
723 |
< |
for (int i = 0; i < SIZE; ++i) |
724 |
< |
ints[i] = new Integer(SIZE-1- i); |
725 |
< |
NavigableSet q = dset0(); |
726 |
< |
assertFalse(q.addAll(Arrays.asList(empty))); |
727 |
< |
assertTrue(q.addAll(Arrays.asList(ints))); |
728 |
< |
for (int i = 0; i < SIZE; ++i) |
733 |
< |
assertEquals(new Integer(i), q.pollFirst()); |
734 |
< |
} |
735 |
< |
finally {} |
720 |
> |
Integer[] empty = new Integer[0]; |
721 |
> |
Integer[] ints = new Integer[SIZE]; |
722 |
> |
for (int i = 0; i < SIZE; ++i) |
723 |
> |
ints[i] = new Integer(SIZE-1- i); |
724 |
> |
NavigableSet q = dset0(); |
725 |
> |
assertFalse(q.addAll(Arrays.asList(empty))); |
726 |
> |
assertTrue(q.addAll(Arrays.asList(ints))); |
727 |
> |
for (int i = 0; i < SIZE; ++i) |
728 |
> |
assertEquals(new Integer(i), q.pollFirst()); |
729 |
|
} |
730 |
|
|
731 |
|
/** |
734 |
|
public void testDescendingPoll() { |
735 |
|
NavigableSet q = populatedSet(SIZE); |
736 |
|
for (int i = 0; i < SIZE; ++i) { |
737 |
< |
assertEquals(i, ((Integer)q.pollFirst()).intValue()); |
737 |
> |
assertEquals(i, q.pollFirst()); |
738 |
|
} |
739 |
|
assertNull(q.pollFirst()); |
740 |
|
} |
829 |
|
} |
830 |
|
} |
831 |
|
|
839 |
– |
|
840 |
– |
|
832 |
|
/** |
833 |
|
* lower returns preceding element |
834 |
|
*/ |
845 |
|
|
846 |
|
Object e4 = q.lower(zero); |
847 |
|
assertNull(e4); |
857 |
– |
|
848 |
|
} |
849 |
|
|
850 |
|
/** |
863 |
|
|
864 |
|
Object e4 = q.higher(m6); |
865 |
|
assertNull(e4); |
876 |
– |
|
866 |
|
} |
867 |
|
|
868 |
|
/** |
881 |
|
|
882 |
|
Object e4 = q.floor(zero); |
883 |
|
assertNull(e4); |
895 |
– |
|
884 |
|
} |
885 |
|
|
886 |
|
/** |
899 |
|
|
900 |
|
Object e4 = q.ceiling(m6); |
901 |
|
assertNull(e4); |
914 |
– |
|
902 |
|
} |
903 |
|
|
904 |
|
/** |
918 |
|
public void testDescendingToArray2() { |
919 |
|
NavigableSet q = populatedSet(SIZE); |
920 |
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Integer[] ints = new Integer[SIZE]; |
921 |
< |
ints = (Integer[])q.toArray(ints); |
921 |
> |
assertSame(ints, q.toArray(ints)); |
922 |
|
Arrays.sort(ints); |
923 |
|
for (int i = 0; i < ints.length; i++) |
924 |
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assertEquals(ints[i], q.pollFirst()); |
949 |
|
assertTrue(q.contains(it.next())); |
950 |
|
++i; |
951 |
|
} |
952 |
< |
assertEquals(i, 0); |
952 |
> |
assertEquals(0, i); |
953 |
|
} |
954 |
|
|
955 |
|
/** |
956 |
|
* iterator.remove removes current element |
957 |
|
*/ |
958 |
< |
public void testDescendingIteratorRemove () { |
958 |
> |
public void testDescendingIteratorRemove() { |
959 |
|
final NavigableSet q = dset0(); |
960 |
|
q.add(new Integer(2)); |
961 |
|
q.add(new Integer(1)); |
971 |
|
assertFalse(it.hasNext()); |
972 |
|
} |
973 |
|
|
987 |
– |
|
974 |
|
/** |
975 |
|
* toString contains toStrings of elements |
976 |
|
*/ |
978 |
|
NavigableSet q = populatedSet(SIZE); |
979 |
|
String s = q.toString(); |
980 |
|
for (int i = 0; i < SIZE; ++i) { |
981 |
< |
assertTrue(s.indexOf(String.valueOf(i)) >= 0); |
981 |
> |
assertTrue(s.contains(String.valueOf(i))); |
982 |
|
} |
983 |
|
} |
984 |
|
|
986 |
|
* A deserialized serialized set has same elements |
987 |
|
*/ |
988 |
|
public void testDescendingSerialization() throws Exception { |
989 |
< |
NavigableSet q = populatedSet(SIZE); |
990 |
< |
ByteArrayOutputStream bout = new ByteArrayOutputStream(10000); |
991 |
< |
ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout)); |
992 |
< |
out.writeObject(q); |
993 |
< |
out.close(); |
994 |
< |
|
995 |
< |
ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray()); |
996 |
< |
ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin)); |
997 |
< |
NavigableSet r = (NavigableSet)in.readObject(); |
998 |
< |
assertEquals(q.size(), r.size()); |
999 |
< |
while (!q.isEmpty()) |
1000 |
< |
assertEquals(q.pollFirst(), r.pollFirst()); |
989 |
> |
NavigableSet x = dset5(); |
990 |
> |
NavigableSet y = serialClone(x); |
991 |
> |
|
992 |
> |
assertNotSame(y, x); |
993 |
> |
assertEquals(x.size(), y.size()); |
994 |
> |
assertEquals(x, y); |
995 |
> |
assertEquals(y, x); |
996 |
> |
while (!x.isEmpty()) { |
997 |
> |
assertFalse(y.isEmpty()); |
998 |
> |
assertEquals(x.pollFirst(), y.pollFirst()); |
999 |
> |
} |
1000 |
> |
assertTrue(y.isEmpty()); |
1001 |
|
} |
1002 |
|
|
1003 |
|
/** |