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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/publicdomain/zero/1.0/ |
5 |
*/ |
6 |
|
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import junit.framework.*; |
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import java.util.*; |
9 |
import java.util.concurrent.ConcurrentSkipListMap; |
10 |
|
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public class ConcurrentSkipListMapTest extends JSR166TestCase { |
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public static void main(String[] args) { |
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junit.textui.TestRunner.run(suite()); |
14 |
} |
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public static Test suite() { |
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return new TestSuite(ConcurrentSkipListMapTest.class); |
17 |
} |
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|
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/** |
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* Create a map from Integers 1-5 to Strings "A"-"E". |
21 |
*/ |
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private static ConcurrentSkipListMap map5() { |
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ConcurrentSkipListMap map = new ConcurrentSkipListMap(); |
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assertTrue(map.isEmpty()); |
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map.put(one, "A"); |
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map.put(five, "E"); |
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map.put(three, "C"); |
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map.put(two, "B"); |
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map.put(four, "D"); |
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assertFalse(map.isEmpty()); |
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assertEquals(5, map.size()); |
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return map; |
33 |
} |
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|
35 |
/** |
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* clear removes all pairs |
37 |
*/ |
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public void testClear() { |
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ConcurrentSkipListMap map = map5(); |
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map.clear(); |
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assertEquals(0, map.size()); |
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} |
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|
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/** |
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* |
46 |
*/ |
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public void testConstructFromSorted() { |
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ConcurrentSkipListMap map = map5(); |
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ConcurrentSkipListMap map2 = new ConcurrentSkipListMap(map); |
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assertEquals(map, map2); |
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} |
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|
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/** |
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* Maps with same contents are equal |
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*/ |
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public void testEquals() { |
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ConcurrentSkipListMap map1 = map5(); |
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ConcurrentSkipListMap map2 = map5(); |
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assertEquals(map1, map2); |
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assertEquals(map2, map1); |
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map1.clear(); |
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assertFalse(map1.equals(map2)); |
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assertFalse(map2.equals(map1)); |
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} |
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|
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/** |
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* containsKey returns true for contained key |
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*/ |
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public void testContainsKey() { |
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ConcurrentSkipListMap map = map5(); |
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assertTrue(map.containsKey(one)); |
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assertFalse(map.containsKey(zero)); |
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} |
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|
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/** |
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* containsValue returns true for held values |
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*/ |
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public void testContainsValue() { |
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ConcurrentSkipListMap map = map5(); |
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assertTrue(map.containsValue("A")); |
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assertFalse(map.containsValue("Z")); |
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} |
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|
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/** |
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* get returns the correct element at the given key, |
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* or null if not present |
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*/ |
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public void testGet() { |
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ConcurrentSkipListMap map = map5(); |
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assertEquals("A", (String)map.get(one)); |
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ConcurrentSkipListMap empty = new ConcurrentSkipListMap(); |
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assertNull(empty.get(one)); |
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} |
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|
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/** |
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* isEmpty is true of empty map and false for non-empty |
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*/ |
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public void testIsEmpty() { |
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ConcurrentSkipListMap empty = new ConcurrentSkipListMap(); |
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ConcurrentSkipListMap map = map5(); |
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assertTrue(empty.isEmpty()); |
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assertFalse(map.isEmpty()); |
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} |
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|
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/** |
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* firstKey returns first key |
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*/ |
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public void testFirstKey() { |
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ConcurrentSkipListMap map = map5(); |
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assertEquals(one, map.firstKey()); |
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} |
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|
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/** |
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* lastKey returns last key |
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*/ |
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public void testLastKey() { |
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ConcurrentSkipListMap map = map5(); |
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assertEquals(five, map.lastKey()); |
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} |
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|
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/** |
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* keySet.toArray returns contains all keys |
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*/ |
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public void testKeySetToArray() { |
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ConcurrentSkipListMap map = map5(); |
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Set s = map.keySet(); |
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Object[] ar = s.toArray(); |
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assertTrue(s.containsAll(Arrays.asList(ar))); |
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assertEquals(5, ar.length); |
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ar[0] = m10; |
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assertFalse(s.containsAll(Arrays.asList(ar))); |
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} |
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|
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/** |
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* descendingkeySet.toArray returns contains all keys |
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*/ |
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public void testDescendingKeySetToArray() { |
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ConcurrentSkipListMap map = map5(); |
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Set s = map.descendingKeySet(); |
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Object[] ar = s.toArray(); |
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assertEquals(5, ar.length); |
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assertTrue(s.containsAll(Arrays.asList(ar))); |
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ar[0] = m10; |
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assertFalse(s.containsAll(Arrays.asList(ar))); |
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} |
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|
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/** |
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* keySet returns a Set containing all the keys |
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*/ |
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public void testKeySet() { |
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ConcurrentSkipListMap map = map5(); |
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Set s = map.keySet(); |
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assertEquals(5, s.size()); |
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assertTrue(s.contains(one)); |
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assertTrue(s.contains(two)); |
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assertTrue(s.contains(three)); |
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assertTrue(s.contains(four)); |
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assertTrue(s.contains(five)); |
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} |
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|
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/** |
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* keySet is ordered |
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*/ |
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public void testKeySetOrder() { |
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ConcurrentSkipListMap map = map5(); |
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Set s = map.keySet(); |
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Iterator i = s.iterator(); |
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Integer last = (Integer)i.next(); |
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assertEquals(last, one); |
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int count = 1; |
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while (i.hasNext()) { |
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Integer k = (Integer)i.next(); |
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assertTrue(last.compareTo(k) < 0); |
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last = k; |
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++count; |
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} |
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assertEquals(5, count); |
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} |
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|
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/** |
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* descending iterator of key set is inverse ordered |
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*/ |
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public void testKeySetDescendingIteratorOrder() { |
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ConcurrentSkipListMap map = map5(); |
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NavigableSet s = map.navigableKeySet(); |
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Iterator i = s.descendingIterator(); |
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Integer last = (Integer)i.next(); |
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assertEquals(last, five); |
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int count = 1; |
190 |
while (i.hasNext()) { |
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Integer k = (Integer)i.next(); |
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assertTrue(last.compareTo(k) > 0); |
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last = k; |
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++count; |
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} |
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assertEquals(5, count); |
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} |
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|
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/** |
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* descendingKeySet is ordered |
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*/ |
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public void testDescendingKeySetOrder() { |
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ConcurrentSkipListMap map = map5(); |
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Set s = map.descendingKeySet(); |
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Iterator i = s.iterator(); |
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Integer last = (Integer)i.next(); |
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assertEquals(last, five); |
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int count = 1; |
209 |
while (i.hasNext()) { |
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Integer k = (Integer)i.next(); |
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assertTrue(last.compareTo(k) > 0); |
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last = k; |
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++count; |
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} |
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assertEquals(5, count); |
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} |
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|
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/** |
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* descending iterator of descendingKeySet is ordered |
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*/ |
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public void testDescendingKeySetDescendingIteratorOrder() { |
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ConcurrentSkipListMap map = map5(); |
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NavigableSet s = map.descendingKeySet(); |
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Iterator i = s.descendingIterator(); |
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Integer last = (Integer)i.next(); |
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assertEquals(last, one); |
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int count = 1; |
228 |
while (i.hasNext()) { |
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Integer k = (Integer)i.next(); |
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assertTrue(last.compareTo(k) < 0); |
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last = k; |
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++count; |
233 |
} |
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assertEquals(5, count); |
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} |
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|
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/** |
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* Values.toArray contains all values |
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*/ |
240 |
public void testValuesToArray() { |
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ConcurrentSkipListMap map = map5(); |
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Collection v = map.values(); |
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Object[] ar = v.toArray(); |
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ArrayList s = new ArrayList(Arrays.asList(ar)); |
245 |
assertEquals(5, ar.length); |
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assertTrue(s.contains("A")); |
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assertTrue(s.contains("B")); |
248 |
assertTrue(s.contains("C")); |
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assertTrue(s.contains("D")); |
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assertTrue(s.contains("E")); |
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} |
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|
253 |
/** |
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* values collection contains all values |
255 |
*/ |
256 |
public void testValues() { |
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ConcurrentSkipListMap map = map5(); |
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Collection s = map.values(); |
259 |
assertEquals(5, s.size()); |
260 |
assertTrue(s.contains("A")); |
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assertTrue(s.contains("B")); |
262 |
assertTrue(s.contains("C")); |
263 |
assertTrue(s.contains("D")); |
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assertTrue(s.contains("E")); |
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} |
266 |
|
267 |
/** |
268 |
* entrySet contains all pairs |
269 |
*/ |
270 |
public void testEntrySet() { |
271 |
ConcurrentSkipListMap map = map5(); |
272 |
Set s = map.entrySet(); |
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assertEquals(5, s.size()); |
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Iterator it = s.iterator(); |
275 |
while (it.hasNext()) { |
276 |
Map.Entry e = (Map.Entry) it.next(); |
277 |
assertTrue( |
278 |
(e.getKey().equals(one) && e.getValue().equals("A")) || |
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(e.getKey().equals(two) && e.getValue().equals("B")) || |
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(e.getKey().equals(three) && e.getValue().equals("C")) || |
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(e.getKey().equals(four) && e.getValue().equals("D")) || |
282 |
(e.getKey().equals(five) && e.getValue().equals("E"))); |
283 |
} |
284 |
} |
285 |
|
286 |
/** |
287 |
* descendingEntrySet contains all pairs |
288 |
*/ |
289 |
public void testDescendingEntrySet() { |
290 |
ConcurrentSkipListMap map = map5(); |
291 |
Set s = map.descendingMap().entrySet(); |
292 |
assertEquals(5, s.size()); |
293 |
Iterator it = s.iterator(); |
294 |
while (it.hasNext()) { |
295 |
Map.Entry e = (Map.Entry) it.next(); |
296 |
assertTrue( |
297 |
(e.getKey().equals(one) && e.getValue().equals("A")) || |
298 |
(e.getKey().equals(two) && e.getValue().equals("B")) || |
299 |
(e.getKey().equals(three) && e.getValue().equals("C")) || |
300 |
(e.getKey().equals(four) && e.getValue().equals("D")) || |
301 |
(e.getKey().equals(five) && e.getValue().equals("E"))); |
302 |
} |
303 |
} |
304 |
|
305 |
/** |
306 |
* entrySet.toArray contains all entries |
307 |
*/ |
308 |
public void testEntrySetToArray() { |
309 |
ConcurrentSkipListMap map = map5(); |
310 |
Set s = map.entrySet(); |
311 |
Object[] ar = s.toArray(); |
312 |
assertEquals(5, ar.length); |
313 |
for (int i = 0; i < 5; ++i) { |
314 |
assertTrue(map.containsKey(((Map.Entry)(ar[i])).getKey())); |
315 |
assertTrue(map.containsValue(((Map.Entry)(ar[i])).getValue())); |
316 |
} |
317 |
} |
318 |
|
319 |
/** |
320 |
* descendingEntrySet.toArray contains all entries |
321 |
*/ |
322 |
public void testDescendingEntrySetToArray() { |
323 |
ConcurrentSkipListMap map = map5(); |
324 |
Set s = map.descendingMap().entrySet(); |
325 |
Object[] ar = s.toArray(); |
326 |
assertEquals(5, ar.length); |
327 |
for (int i = 0; i < 5; ++i) { |
328 |
assertTrue(map.containsKey(((Map.Entry)(ar[i])).getKey())); |
329 |
assertTrue(map.containsValue(((Map.Entry)(ar[i])).getValue())); |
330 |
} |
331 |
} |
332 |
|
333 |
/** |
334 |
* putAll adds all key-value pairs from the given map |
335 |
*/ |
336 |
public void testPutAll() { |
337 |
ConcurrentSkipListMap empty = new ConcurrentSkipListMap(); |
338 |
ConcurrentSkipListMap map = map5(); |
339 |
empty.putAll(map); |
340 |
assertEquals(5, empty.size()); |
341 |
assertTrue(empty.containsKey(one)); |
342 |
assertTrue(empty.containsKey(two)); |
343 |
assertTrue(empty.containsKey(three)); |
344 |
assertTrue(empty.containsKey(four)); |
345 |
assertTrue(empty.containsKey(five)); |
346 |
} |
347 |
|
348 |
/** |
349 |
* putIfAbsent works when the given key is not present |
350 |
*/ |
351 |
public void testPutIfAbsent() { |
352 |
ConcurrentSkipListMap map = map5(); |
353 |
map.putIfAbsent(six, "Z"); |
354 |
assertTrue(map.containsKey(six)); |
355 |
} |
356 |
|
357 |
/** |
358 |
* putIfAbsent does not add the pair if the key is already present |
359 |
*/ |
360 |
public void testPutIfAbsent2() { |
361 |
ConcurrentSkipListMap map = map5(); |
362 |
assertEquals("A", map.putIfAbsent(one, "Z")); |
363 |
} |
364 |
|
365 |
/** |
366 |
* replace fails when the given key is not present |
367 |
*/ |
368 |
public void testReplace() { |
369 |
ConcurrentSkipListMap map = map5(); |
370 |
assertNull(map.replace(six, "Z")); |
371 |
assertFalse(map.containsKey(six)); |
372 |
} |
373 |
|
374 |
/** |
375 |
* replace succeeds if the key is already present |
376 |
*/ |
377 |
public void testReplace2() { |
378 |
ConcurrentSkipListMap map = map5(); |
379 |
assertNotNull(map.replace(one, "Z")); |
380 |
assertEquals("Z", map.get(one)); |
381 |
} |
382 |
|
383 |
/** |
384 |
* replace value fails when the given key not mapped to expected value |
385 |
*/ |
386 |
public void testReplaceValue() { |
387 |
ConcurrentSkipListMap map = map5(); |
388 |
assertEquals("A", map.get(one)); |
389 |
assertFalse(map.replace(one, "Z", "Z")); |
390 |
assertEquals("A", map.get(one)); |
391 |
} |
392 |
|
393 |
/** |
394 |
* replace value succeeds when the given key mapped to expected value |
395 |
*/ |
396 |
public void testReplaceValue2() { |
397 |
ConcurrentSkipListMap map = map5(); |
398 |
assertEquals("A", map.get(one)); |
399 |
assertTrue(map.replace(one, "A", "Z")); |
400 |
assertEquals("Z", map.get(one)); |
401 |
} |
402 |
|
403 |
/** |
404 |
* remove removes the correct key-value pair from the map |
405 |
*/ |
406 |
public void testRemove() { |
407 |
ConcurrentSkipListMap map = map5(); |
408 |
map.remove(five); |
409 |
assertEquals(4, map.size()); |
410 |
assertFalse(map.containsKey(five)); |
411 |
} |
412 |
|
413 |
/** |
414 |
* remove(key,value) removes only if pair present |
415 |
*/ |
416 |
public void testRemove2() { |
417 |
ConcurrentSkipListMap map = map5(); |
418 |
assertTrue(map.containsKey(five)); |
419 |
assertEquals("E", map.get(five)); |
420 |
map.remove(five, "E"); |
421 |
assertEquals(4, map.size()); |
422 |
assertFalse(map.containsKey(five)); |
423 |
map.remove(four, "A"); |
424 |
assertEquals(4, map.size()); |
425 |
assertTrue(map.containsKey(four)); |
426 |
} |
427 |
|
428 |
/** |
429 |
* lowerEntry returns preceding entry. |
430 |
*/ |
431 |
public void testLowerEntry() { |
432 |
ConcurrentSkipListMap map = map5(); |
433 |
Map.Entry e1 = map.lowerEntry(three); |
434 |
assertEquals(two, e1.getKey()); |
435 |
|
436 |
Map.Entry e2 = map.lowerEntry(six); |
437 |
assertEquals(five, e2.getKey()); |
438 |
|
439 |
Map.Entry e3 = map.lowerEntry(one); |
440 |
assertNull(e3); |
441 |
|
442 |
Map.Entry e4 = map.lowerEntry(zero); |
443 |
assertNull(e4); |
444 |
} |
445 |
|
446 |
/** |
447 |
* higherEntry returns next entry. |
448 |
*/ |
449 |
public void testHigherEntry() { |
450 |
ConcurrentSkipListMap map = map5(); |
451 |
Map.Entry e1 = map.higherEntry(three); |
452 |
assertEquals(four, e1.getKey()); |
453 |
|
454 |
Map.Entry e2 = map.higherEntry(zero); |
455 |
assertEquals(one, e2.getKey()); |
456 |
|
457 |
Map.Entry e3 = map.higherEntry(five); |
458 |
assertNull(e3); |
459 |
|
460 |
Map.Entry e4 = map.higherEntry(six); |
461 |
assertNull(e4); |
462 |
} |
463 |
|
464 |
/** |
465 |
* floorEntry returns preceding entry. |
466 |
*/ |
467 |
public void testFloorEntry() { |
468 |
ConcurrentSkipListMap map = map5(); |
469 |
Map.Entry e1 = map.floorEntry(three); |
470 |
assertEquals(three, e1.getKey()); |
471 |
|
472 |
Map.Entry e2 = map.floorEntry(six); |
473 |
assertEquals(five, e2.getKey()); |
474 |
|
475 |
Map.Entry e3 = map.floorEntry(one); |
476 |
assertEquals(one, e3.getKey()); |
477 |
|
478 |
Map.Entry e4 = map.floorEntry(zero); |
479 |
assertNull(e4); |
480 |
} |
481 |
|
482 |
/** |
483 |
* ceilingEntry returns next entry. |
484 |
*/ |
485 |
public void testCeilingEntry() { |
486 |
ConcurrentSkipListMap map = map5(); |
487 |
Map.Entry e1 = map.ceilingEntry(three); |
488 |
assertEquals(three, e1.getKey()); |
489 |
|
490 |
Map.Entry e2 = map.ceilingEntry(zero); |
491 |
assertEquals(one, e2.getKey()); |
492 |
|
493 |
Map.Entry e3 = map.ceilingEntry(five); |
494 |
assertEquals(five, e3.getKey()); |
495 |
|
496 |
Map.Entry e4 = map.ceilingEntry(six); |
497 |
assertNull(e4); |
498 |
} |
499 |
|
500 |
/** |
501 |
* lowerEntry, higherEntry, ceilingEntry, and floorEntry return |
502 |
* immutable entries |
503 |
*/ |
504 |
public void testEntryImmutability() { |
505 |
ConcurrentSkipListMap map = map5(); |
506 |
Map.Entry e = map.lowerEntry(three); |
507 |
assertEquals(two, e.getKey()); |
508 |
try { |
509 |
e.setValue("X"); |
510 |
shouldThrow(); |
511 |
} catch (UnsupportedOperationException success) {} |
512 |
e = map.higherEntry(zero); |
513 |
assertEquals(one, e.getKey()); |
514 |
try { |
515 |
e.setValue("X"); |
516 |
shouldThrow(); |
517 |
} catch (UnsupportedOperationException success) {} |
518 |
e = map.floorEntry(one); |
519 |
assertEquals(one, e.getKey()); |
520 |
try { |
521 |
e.setValue("X"); |
522 |
shouldThrow(); |
523 |
} catch (UnsupportedOperationException success) {} |
524 |
e = map.ceilingEntry(five); |
525 |
assertEquals(five, e.getKey()); |
526 |
try { |
527 |
e.setValue("X"); |
528 |
shouldThrow(); |
529 |
} catch (UnsupportedOperationException success) {} |
530 |
} |
531 |
|
532 |
/** |
533 |
* lowerKey returns preceding element |
534 |
*/ |
535 |
public void testLowerKey() { |
536 |
ConcurrentSkipListMap q = map5(); |
537 |
Object e1 = q.lowerKey(three); |
538 |
assertEquals(two, e1); |
539 |
|
540 |
Object e2 = q.lowerKey(six); |
541 |
assertEquals(five, e2); |
542 |
|
543 |
Object e3 = q.lowerKey(one); |
544 |
assertNull(e3); |
545 |
|
546 |
Object e4 = q.lowerKey(zero); |
547 |
assertNull(e4); |
548 |
} |
549 |
|
550 |
/** |
551 |
* higherKey returns next element |
552 |
*/ |
553 |
public void testHigherKey() { |
554 |
ConcurrentSkipListMap q = map5(); |
555 |
Object e1 = q.higherKey(three); |
556 |
assertEquals(four, e1); |
557 |
|
558 |
Object e2 = q.higherKey(zero); |
559 |
assertEquals(one, e2); |
560 |
|
561 |
Object e3 = q.higherKey(five); |
562 |
assertNull(e3); |
563 |
|
564 |
Object e4 = q.higherKey(six); |
565 |
assertNull(e4); |
566 |
} |
567 |
|
568 |
/** |
569 |
* floorKey returns preceding element |
570 |
*/ |
571 |
public void testFloorKey() { |
572 |
ConcurrentSkipListMap q = map5(); |
573 |
Object e1 = q.floorKey(three); |
574 |
assertEquals(three, e1); |
575 |
|
576 |
Object e2 = q.floorKey(six); |
577 |
assertEquals(five, e2); |
578 |
|
579 |
Object e3 = q.floorKey(one); |
580 |
assertEquals(one, e3); |
581 |
|
582 |
Object e4 = q.floorKey(zero); |
583 |
assertNull(e4); |
584 |
} |
585 |
|
586 |
/** |
587 |
* ceilingKey returns next element |
588 |
*/ |
589 |
public void testCeilingKey() { |
590 |
ConcurrentSkipListMap q = map5(); |
591 |
Object e1 = q.ceilingKey(three); |
592 |
assertEquals(three, e1); |
593 |
|
594 |
Object e2 = q.ceilingKey(zero); |
595 |
assertEquals(one, e2); |
596 |
|
597 |
Object e3 = q.ceilingKey(five); |
598 |
assertEquals(five, e3); |
599 |
|
600 |
Object e4 = q.ceilingKey(six); |
601 |
assertNull(e4); |
602 |
} |
603 |
|
604 |
/** |
605 |
* pollFirstEntry returns entries in order |
606 |
*/ |
607 |
public void testPollFirstEntry() { |
608 |
ConcurrentSkipListMap map = map5(); |
609 |
Map.Entry e = map.pollFirstEntry(); |
610 |
assertEquals(one, e.getKey()); |
611 |
assertEquals("A", e.getValue()); |
612 |
e = map.pollFirstEntry(); |
613 |
assertEquals(two, e.getKey()); |
614 |
map.put(one, "A"); |
615 |
e = map.pollFirstEntry(); |
616 |
assertEquals(one, e.getKey()); |
617 |
assertEquals("A", e.getValue()); |
618 |
e = map.pollFirstEntry(); |
619 |
assertEquals(three, e.getKey()); |
620 |
map.remove(four); |
621 |
e = map.pollFirstEntry(); |
622 |
assertEquals(five, e.getKey()); |
623 |
try { |
624 |
e.setValue("A"); |
625 |
shouldThrow(); |
626 |
} catch (UnsupportedOperationException success) {} |
627 |
e = map.pollFirstEntry(); |
628 |
assertNull(e); |
629 |
} |
630 |
|
631 |
/** |
632 |
* pollLastEntry returns entries in order |
633 |
*/ |
634 |
public void testPollLastEntry() { |
635 |
ConcurrentSkipListMap map = map5(); |
636 |
Map.Entry e = map.pollLastEntry(); |
637 |
assertEquals(five, e.getKey()); |
638 |
assertEquals("E", e.getValue()); |
639 |
e = map.pollLastEntry(); |
640 |
assertEquals(four, e.getKey()); |
641 |
map.put(five, "E"); |
642 |
e = map.pollLastEntry(); |
643 |
assertEquals(five, e.getKey()); |
644 |
assertEquals("E", e.getValue()); |
645 |
e = map.pollLastEntry(); |
646 |
assertEquals(three, e.getKey()); |
647 |
map.remove(two); |
648 |
e = map.pollLastEntry(); |
649 |
assertEquals(one, e.getKey()); |
650 |
try { |
651 |
e.setValue("E"); |
652 |
shouldThrow(); |
653 |
} catch (UnsupportedOperationException success) {} |
654 |
e = map.pollLastEntry(); |
655 |
assertNull(e); |
656 |
} |
657 |
|
658 |
/** |
659 |
* size returns the correct values |
660 |
*/ |
661 |
public void testSize() { |
662 |
ConcurrentSkipListMap map = map5(); |
663 |
ConcurrentSkipListMap empty = new ConcurrentSkipListMap(); |
664 |
assertEquals(0, empty.size()); |
665 |
assertEquals(5, map.size()); |
666 |
} |
667 |
|
668 |
/** |
669 |
* toString contains toString of elements |
670 |
*/ |
671 |
public void testToString() { |
672 |
ConcurrentSkipListMap map = map5(); |
673 |
String s = map.toString(); |
674 |
for (int i = 1; i <= 5; ++i) { |
675 |
assertTrue(s.contains(String.valueOf(i))); |
676 |
} |
677 |
} |
678 |
|
679 |
// Exception tests |
680 |
|
681 |
/** |
682 |
* get(null) of nonempty map throws NPE |
683 |
*/ |
684 |
public void testGet_NullPointerException() { |
685 |
try { |
686 |
ConcurrentSkipListMap c = map5(); |
687 |
c.get(null); |
688 |
shouldThrow(); |
689 |
} catch (NullPointerException success) {} |
690 |
} |
691 |
|
692 |
/** |
693 |
* containsKey(null) of nonempty map throws NPE |
694 |
*/ |
695 |
public void testContainsKey_NullPointerException() { |
696 |
try { |
697 |
ConcurrentSkipListMap c = map5(); |
698 |
c.containsKey(null); |
699 |
shouldThrow(); |
700 |
} catch (NullPointerException success) {} |
701 |
} |
702 |
|
703 |
/** |
704 |
* containsValue(null) throws NPE |
705 |
*/ |
706 |
public void testContainsValue_NullPointerException() { |
707 |
try { |
708 |
ConcurrentSkipListMap c = new ConcurrentSkipListMap(); |
709 |
c.containsValue(null); |
710 |
shouldThrow(); |
711 |
} catch (NullPointerException success) {} |
712 |
} |
713 |
|
714 |
/** |
715 |
* put(null,x) throws NPE |
716 |
*/ |
717 |
public void testPut1_NullPointerException() { |
718 |
try { |
719 |
ConcurrentSkipListMap c = map5(); |
720 |
c.put(null, "whatever"); |
721 |
shouldThrow(); |
722 |
} catch (NullPointerException success) {} |
723 |
} |
724 |
|
725 |
/** |
726 |
* putIfAbsent(null, x) throws NPE |
727 |
*/ |
728 |
public void testPutIfAbsent1_NullPointerException() { |
729 |
try { |
730 |
ConcurrentSkipListMap c = map5(); |
731 |
c.putIfAbsent(null, "whatever"); |
732 |
shouldThrow(); |
733 |
} catch (NullPointerException success) {} |
734 |
} |
735 |
|
736 |
/** |
737 |
* replace(null, x) throws NPE |
738 |
*/ |
739 |
public void testReplace_NullPointerException() { |
740 |
try { |
741 |
ConcurrentSkipListMap c = map5(); |
742 |
c.replace(null, "whatever"); |
743 |
shouldThrow(); |
744 |
} catch (NullPointerException success) {} |
745 |
} |
746 |
|
747 |
/** |
748 |
* replace(null, x, y) throws NPE |
749 |
*/ |
750 |
public void testReplaceValue_NullPointerException() { |
751 |
try { |
752 |
ConcurrentSkipListMap c = map5(); |
753 |
c.replace(null, one, "whatever"); |
754 |
shouldThrow(); |
755 |
} catch (NullPointerException success) {} |
756 |
} |
757 |
|
758 |
/** |
759 |
* remove(null) throws NPE |
760 |
*/ |
761 |
public void testRemove1_NullPointerException() { |
762 |
try { |
763 |
ConcurrentSkipListMap c = new ConcurrentSkipListMap(); |
764 |
c.put("sadsdf", "asdads"); |
765 |
c.remove(null); |
766 |
shouldThrow(); |
767 |
} catch (NullPointerException success) {} |
768 |
} |
769 |
|
770 |
/** |
771 |
* remove(null, x) throws NPE |
772 |
*/ |
773 |
public void testRemove2_NullPointerException() { |
774 |
try { |
775 |
ConcurrentSkipListMap c = new ConcurrentSkipListMap(); |
776 |
c.put("sadsdf", "asdads"); |
777 |
c.remove(null, "whatever"); |
778 |
shouldThrow(); |
779 |
} catch (NullPointerException success) {} |
780 |
} |
781 |
|
782 |
/** |
783 |
* remove(x, null) returns false |
784 |
*/ |
785 |
public void testRemove3() { |
786 |
ConcurrentSkipListMap c = new ConcurrentSkipListMap(); |
787 |
c.put("sadsdf", "asdads"); |
788 |
assertFalse(c.remove("sadsdf", null)); |
789 |
} |
790 |
|
791 |
/** |
792 |
* A deserialized map equals original |
793 |
*/ |
794 |
public void testSerialization() throws Exception { |
795 |
NavigableMap x = map5(); |
796 |
NavigableMap y = serialClone(x); |
797 |
|
798 |
assertTrue(x != y); |
799 |
assertEquals(x.size(), y.size()); |
800 |
assertEquals(x.toString(), y.toString()); |
801 |
assertEquals(x, y); |
802 |
assertEquals(y, x); |
803 |
} |
804 |
|
805 |
/** |
806 |
* subMap returns map with keys in requested range |
807 |
*/ |
808 |
public void testSubMapContents() { |
809 |
ConcurrentSkipListMap map = map5(); |
810 |
NavigableMap sm = map.subMap(two, true, four, false); |
811 |
assertEquals(two, sm.firstKey()); |
812 |
assertEquals(three, sm.lastKey()); |
813 |
assertEquals(2, sm.size()); |
814 |
assertFalse(sm.containsKey(one)); |
815 |
assertTrue(sm.containsKey(two)); |
816 |
assertTrue(sm.containsKey(three)); |
817 |
assertFalse(sm.containsKey(four)); |
818 |
assertFalse(sm.containsKey(five)); |
819 |
Iterator i = sm.keySet().iterator(); |
820 |
Object k; |
821 |
k = (Integer)(i.next()); |
822 |
assertEquals(two, k); |
823 |
k = (Integer)(i.next()); |
824 |
assertEquals(three, k); |
825 |
assertFalse(i.hasNext()); |
826 |
Iterator r = sm.descendingKeySet().iterator(); |
827 |
k = (Integer)(r.next()); |
828 |
assertEquals(three, k); |
829 |
k = (Integer)(r.next()); |
830 |
assertEquals(two, k); |
831 |
assertFalse(r.hasNext()); |
832 |
|
833 |
Iterator j = sm.keySet().iterator(); |
834 |
j.next(); |
835 |
j.remove(); |
836 |
assertFalse(map.containsKey(two)); |
837 |
assertEquals(4, map.size()); |
838 |
assertEquals(1, sm.size()); |
839 |
assertEquals(three, sm.firstKey()); |
840 |
assertEquals(three, sm.lastKey()); |
841 |
assertEquals("C", sm.remove(three)); |
842 |
assertTrue(sm.isEmpty()); |
843 |
assertEquals(3, map.size()); |
844 |
} |
845 |
|
846 |
public void testSubMapContents2() { |
847 |
ConcurrentSkipListMap map = map5(); |
848 |
NavigableMap sm = map.subMap(two, true, three, false); |
849 |
assertEquals(1, sm.size()); |
850 |
assertEquals(two, sm.firstKey()); |
851 |
assertEquals(two, sm.lastKey()); |
852 |
assertFalse(sm.containsKey(one)); |
853 |
assertTrue(sm.containsKey(two)); |
854 |
assertFalse(sm.containsKey(three)); |
855 |
assertFalse(sm.containsKey(four)); |
856 |
assertFalse(sm.containsKey(five)); |
857 |
Iterator i = sm.keySet().iterator(); |
858 |
Object k; |
859 |
k = (Integer)(i.next()); |
860 |
assertEquals(two, k); |
861 |
assertFalse(i.hasNext()); |
862 |
Iterator r = sm.descendingKeySet().iterator(); |
863 |
k = (Integer)(r.next()); |
864 |
assertEquals(two, k); |
865 |
assertFalse(r.hasNext()); |
866 |
|
867 |
Iterator j = sm.keySet().iterator(); |
868 |
j.next(); |
869 |
j.remove(); |
870 |
assertFalse(map.containsKey(two)); |
871 |
assertEquals(4, map.size()); |
872 |
assertEquals(0, sm.size()); |
873 |
assertTrue(sm.isEmpty()); |
874 |
assertSame(sm.remove(three), null); |
875 |
assertEquals(4, map.size()); |
876 |
} |
877 |
|
878 |
/** |
879 |
* headMap returns map with keys in requested range |
880 |
*/ |
881 |
public void testHeadMapContents() { |
882 |
ConcurrentSkipListMap map = map5(); |
883 |
NavigableMap sm = map.headMap(four, false); |
884 |
assertTrue(sm.containsKey(one)); |
885 |
assertTrue(sm.containsKey(two)); |
886 |
assertTrue(sm.containsKey(three)); |
887 |
assertFalse(sm.containsKey(four)); |
888 |
assertFalse(sm.containsKey(five)); |
889 |
Iterator i = sm.keySet().iterator(); |
890 |
Object k; |
891 |
k = (Integer)(i.next()); |
892 |
assertEquals(one, k); |
893 |
k = (Integer)(i.next()); |
894 |
assertEquals(two, k); |
895 |
k = (Integer)(i.next()); |
896 |
assertEquals(three, k); |
897 |
assertFalse(i.hasNext()); |
898 |
sm.clear(); |
899 |
assertTrue(sm.isEmpty()); |
900 |
assertEquals(2, map.size()); |
901 |
assertEquals(four, map.firstKey()); |
902 |
} |
903 |
|
904 |
/** |
905 |
* tailMap returns map with keys in requested range |
906 |
*/ |
907 |
public void testTailMapContents() { |
908 |
ConcurrentSkipListMap map = map5(); |
909 |
NavigableMap sm = map.tailMap(two, true); |
910 |
assertFalse(sm.containsKey(one)); |
911 |
assertTrue(sm.containsKey(two)); |
912 |
assertTrue(sm.containsKey(three)); |
913 |
assertTrue(sm.containsKey(four)); |
914 |
assertTrue(sm.containsKey(five)); |
915 |
Iterator i = sm.keySet().iterator(); |
916 |
Object k; |
917 |
k = (Integer)(i.next()); |
918 |
assertEquals(two, k); |
919 |
k = (Integer)(i.next()); |
920 |
assertEquals(three, k); |
921 |
k = (Integer)(i.next()); |
922 |
assertEquals(four, k); |
923 |
k = (Integer)(i.next()); |
924 |
assertEquals(five, k); |
925 |
assertFalse(i.hasNext()); |
926 |
Iterator r = sm.descendingKeySet().iterator(); |
927 |
k = (Integer)(r.next()); |
928 |
assertEquals(five, k); |
929 |
k = (Integer)(r.next()); |
930 |
assertEquals(four, k); |
931 |
k = (Integer)(r.next()); |
932 |
assertEquals(three, k); |
933 |
k = (Integer)(r.next()); |
934 |
assertEquals(two, k); |
935 |
assertFalse(r.hasNext()); |
936 |
|
937 |
Iterator ei = sm.entrySet().iterator(); |
938 |
Map.Entry e; |
939 |
e = (Map.Entry)(ei.next()); |
940 |
assertEquals(two, e.getKey()); |
941 |
assertEquals("B", e.getValue()); |
942 |
e = (Map.Entry)(ei.next()); |
943 |
assertEquals(three, e.getKey()); |
944 |
assertEquals("C", e.getValue()); |
945 |
e = (Map.Entry)(ei.next()); |
946 |
assertEquals(four, e.getKey()); |
947 |
assertEquals("D", e.getValue()); |
948 |
e = (Map.Entry)(ei.next()); |
949 |
assertEquals(five, e.getKey()); |
950 |
assertEquals("E", e.getValue()); |
951 |
assertFalse(i.hasNext()); |
952 |
|
953 |
NavigableMap ssm = sm.tailMap(four, true); |
954 |
assertEquals(four, ssm.firstKey()); |
955 |
assertEquals(five, ssm.lastKey()); |
956 |
assertEquals("D", ssm.remove(four)); |
957 |
assertEquals(1, ssm.size()); |
958 |
assertEquals(3, sm.size()); |
959 |
assertEquals(4, map.size()); |
960 |
} |
961 |
|
962 |
Random rnd = new Random(666); |
963 |
BitSet bs; |
964 |
|
965 |
/** |
966 |
* Submaps of submaps subdivide correctly |
967 |
*/ |
968 |
public void testRecursiveSubMaps() throws Exception { |
969 |
int mapSize = expensiveTests ? 1000 : 100; |
970 |
Class cl = ConcurrentSkipListMap.class; |
971 |
NavigableMap<Integer, Integer> map = newMap(cl); |
972 |
bs = new BitSet(mapSize); |
973 |
|
974 |
populate(map, mapSize); |
975 |
check(map, 0, mapSize - 1, true); |
976 |
check(map.descendingMap(), 0, mapSize - 1, false); |
977 |
|
978 |
mutateMap(map, 0, mapSize - 1); |
979 |
check(map, 0, mapSize - 1, true); |
980 |
check(map.descendingMap(), 0, mapSize - 1, false); |
981 |
|
982 |
bashSubMap(map.subMap(0, true, mapSize, false), |
983 |
0, mapSize - 1, true); |
984 |
} |
985 |
|
986 |
static NavigableMap<Integer, Integer> newMap(Class cl) throws Exception { |
987 |
NavigableMap<Integer, Integer> result = |
988 |
(NavigableMap<Integer, Integer>) cl.newInstance(); |
989 |
assertEquals(0, result.size()); |
990 |
assertFalse(result.keySet().iterator().hasNext()); |
991 |
return result; |
992 |
} |
993 |
|
994 |
void populate(NavigableMap<Integer, Integer> map, int limit) { |
995 |
for (int i = 0, n = 2 * limit / 3; i < n; i++) { |
996 |
int key = rnd.nextInt(limit); |
997 |
put(map, key); |
998 |
} |
999 |
} |
1000 |
|
1001 |
void mutateMap(NavigableMap<Integer, Integer> map, int min, int max) { |
1002 |
int size = map.size(); |
1003 |
int rangeSize = max - min + 1; |
1004 |
|
1005 |
// Remove a bunch of entries directly |
1006 |
for (int i = 0, n = rangeSize / 2; i < n; i++) { |
1007 |
remove(map, min - 5 + rnd.nextInt(rangeSize + 10)); |
1008 |
} |
1009 |
|
1010 |
// Remove a bunch of entries with iterator |
1011 |
for (Iterator<Integer> it = map.keySet().iterator(); it.hasNext(); ) { |
1012 |
if (rnd.nextBoolean()) { |
1013 |
bs.clear(it.next()); |
1014 |
it.remove(); |
1015 |
} |
1016 |
} |
1017 |
|
1018 |
// Add entries till we're back to original size |
1019 |
while (map.size() < size) { |
1020 |
int key = min + rnd.nextInt(rangeSize); |
1021 |
assertTrue(key >= min && key<= max); |
1022 |
put(map, key); |
1023 |
} |
1024 |
} |
1025 |
|
1026 |
void mutateSubMap(NavigableMap<Integer, Integer> map, int min, int max) { |
1027 |
int size = map.size(); |
1028 |
int rangeSize = max - min + 1; |
1029 |
|
1030 |
// Remove a bunch of entries directly |
1031 |
for (int i = 0, n = rangeSize / 2; i < n; i++) { |
1032 |
remove(map, min - 5 + rnd.nextInt(rangeSize + 10)); |
1033 |
} |
1034 |
|
1035 |
// Remove a bunch of entries with iterator |
1036 |
for (Iterator<Integer> it = map.keySet().iterator(); it.hasNext(); ) { |
1037 |
if (rnd.nextBoolean()) { |
1038 |
bs.clear(it.next()); |
1039 |
it.remove(); |
1040 |
} |
1041 |
} |
1042 |
|
1043 |
// Add entries till we're back to original size |
1044 |
while (map.size() < size) { |
1045 |
int key = min - 5 + rnd.nextInt(rangeSize + 10); |
1046 |
if (key >= min && key<= max) { |
1047 |
put(map, key); |
1048 |
} else { |
1049 |
try { |
1050 |
map.put(key, 2 * key); |
1051 |
shouldThrow(); |
1052 |
} catch (IllegalArgumentException success) {} |
1053 |
} |
1054 |
} |
1055 |
} |
1056 |
|
1057 |
void put(NavigableMap<Integer, Integer> map, int key) { |
1058 |
if (map.put(key, 2 * key) == null) |
1059 |
bs.set(key); |
1060 |
} |
1061 |
|
1062 |
void remove(NavigableMap<Integer, Integer> map, int key) { |
1063 |
if (map.remove(key) != null) |
1064 |
bs.clear(key); |
1065 |
} |
1066 |
|
1067 |
void bashSubMap(NavigableMap<Integer, Integer> map, |
1068 |
int min, int max, boolean ascending) { |
1069 |
check(map, min, max, ascending); |
1070 |
check(map.descendingMap(), min, max, !ascending); |
1071 |
|
1072 |
mutateSubMap(map, min, max); |
1073 |
check(map, min, max, ascending); |
1074 |
check(map.descendingMap(), min, max, !ascending); |
1075 |
|
1076 |
// Recurse |
1077 |
if (max - min < 2) |
1078 |
return; |
1079 |
int midPoint = (min + max) / 2; |
1080 |
|
1081 |
// headMap - pick direction and endpoint inclusion randomly |
1082 |
boolean incl = rnd.nextBoolean(); |
1083 |
NavigableMap<Integer,Integer> hm = map.headMap(midPoint, incl); |
1084 |
if (ascending) { |
1085 |
if (rnd.nextBoolean()) |
1086 |
bashSubMap(hm, min, midPoint - (incl ? 0 : 1), true); |
1087 |
else |
1088 |
bashSubMap(hm.descendingMap(), min, midPoint - (incl ? 0 : 1), |
1089 |
false); |
1090 |
} else { |
1091 |
if (rnd.nextBoolean()) |
1092 |
bashSubMap(hm, midPoint + (incl ? 0 : 1), max, false); |
1093 |
else |
1094 |
bashSubMap(hm.descendingMap(), midPoint + (incl ? 0 : 1), max, |
1095 |
true); |
1096 |
} |
1097 |
|
1098 |
// tailMap - pick direction and endpoint inclusion randomly |
1099 |
incl = rnd.nextBoolean(); |
1100 |
NavigableMap<Integer,Integer> tm = map.tailMap(midPoint,incl); |
1101 |
if (ascending) { |
1102 |
if (rnd.nextBoolean()) |
1103 |
bashSubMap(tm, midPoint + (incl ? 0 : 1), max, true); |
1104 |
else |
1105 |
bashSubMap(tm.descendingMap(), midPoint + (incl ? 0 : 1), max, |
1106 |
false); |
1107 |
} else { |
1108 |
if (rnd.nextBoolean()) { |
1109 |
bashSubMap(tm, min, midPoint - (incl ? 0 : 1), false); |
1110 |
} else { |
1111 |
bashSubMap(tm.descendingMap(), min, midPoint - (incl ? 0 : 1), |
1112 |
true); |
1113 |
} |
1114 |
} |
1115 |
|
1116 |
// subMap - pick direction and endpoint inclusion randomly |
1117 |
int rangeSize = max - min + 1; |
1118 |
int[] endpoints = new int[2]; |
1119 |
endpoints[0] = min + rnd.nextInt(rangeSize); |
1120 |
endpoints[1] = min + rnd.nextInt(rangeSize); |
1121 |
Arrays.sort(endpoints); |
1122 |
boolean lowIncl = rnd.nextBoolean(); |
1123 |
boolean highIncl = rnd.nextBoolean(); |
1124 |
if (ascending) { |
1125 |
NavigableMap<Integer,Integer> sm = map.subMap( |
1126 |
endpoints[0], lowIncl, endpoints[1], highIncl); |
1127 |
if (rnd.nextBoolean()) |
1128 |
bashSubMap(sm, endpoints[0] + (lowIncl ? 0 : 1), |
1129 |
endpoints[1] - (highIncl ? 0 : 1), true); |
1130 |
else |
1131 |
bashSubMap(sm.descendingMap(), endpoints[0] + (lowIncl ? 0 : 1), |
1132 |
endpoints[1] - (highIncl ? 0 : 1), false); |
1133 |
} else { |
1134 |
NavigableMap<Integer,Integer> sm = map.subMap( |
1135 |
endpoints[1], highIncl, endpoints[0], lowIncl); |
1136 |
if (rnd.nextBoolean()) |
1137 |
bashSubMap(sm, endpoints[0] + (lowIncl ? 0 : 1), |
1138 |
endpoints[1] - (highIncl ? 0 : 1), false); |
1139 |
else |
1140 |
bashSubMap(sm.descendingMap(), endpoints[0] + (lowIncl ? 0 : 1), |
1141 |
endpoints[1] - (highIncl ? 0 : 1), true); |
1142 |
} |
1143 |
} |
1144 |
|
1145 |
/** |
1146 |
* min and max are both inclusive. If max < min, interval is empty. |
1147 |
*/ |
1148 |
void check(NavigableMap<Integer, Integer> map, |
1149 |
final int min, final int max, final boolean ascending) { |
1150 |
class ReferenceSet { |
1151 |
int lower(int key) { |
1152 |
return ascending ? lowerAscending(key) : higherAscending(key); |
1153 |
} |
1154 |
int floor(int key) { |
1155 |
return ascending ? floorAscending(key) : ceilingAscending(key); |
1156 |
} |
1157 |
int ceiling(int key) { |
1158 |
return ascending ? ceilingAscending(key) : floorAscending(key); |
1159 |
} |
1160 |
int higher(int key) { |
1161 |
return ascending ? higherAscending(key) : lowerAscending(key); |
1162 |
} |
1163 |
int first() { |
1164 |
return ascending ? firstAscending() : lastAscending(); |
1165 |
} |
1166 |
int last() { |
1167 |
return ascending ? lastAscending() : firstAscending(); |
1168 |
} |
1169 |
int lowerAscending(int key) { |
1170 |
return floorAscending(key - 1); |
1171 |
} |
1172 |
int floorAscending(int key) { |
1173 |
if (key < min) |
1174 |
return -1; |
1175 |
else if (key > max) |
1176 |
key = max; |
1177 |
|
1178 |
// BitSet should support this! Test would run much faster |
1179 |
while (key >= min) { |
1180 |
if (bs.get(key)) |
1181 |
return key; |
1182 |
key--; |
1183 |
} |
1184 |
return -1; |
1185 |
} |
1186 |
int ceilingAscending(int key) { |
1187 |
if (key < min) |
1188 |
key = min; |
1189 |
else if (key > max) |
1190 |
return -1; |
1191 |
int result = bs.nextSetBit(key); |
1192 |
return result > max ? -1 : result; |
1193 |
} |
1194 |
int higherAscending(int key) { |
1195 |
return ceilingAscending(key + 1); |
1196 |
} |
1197 |
private int firstAscending() { |
1198 |
int result = ceilingAscending(min); |
1199 |
return result > max ? -1 : result; |
1200 |
} |
1201 |
private int lastAscending() { |
1202 |
int result = floorAscending(max); |
1203 |
return result < min ? -1 : result; |
1204 |
} |
1205 |
} |
1206 |
ReferenceSet rs = new ReferenceSet(); |
1207 |
|
1208 |
// Test contents using containsKey |
1209 |
int size = 0; |
1210 |
for (int i = min; i <= max; i++) { |
1211 |
boolean bsContainsI = bs.get(i); |
1212 |
assertEquals(bsContainsI, map.containsKey(i)); |
1213 |
if (bsContainsI) |
1214 |
size++; |
1215 |
} |
1216 |
assertEquals(map.size(), size); |
1217 |
|
1218 |
// Test contents using contains keySet iterator |
1219 |
int size2 = 0; |
1220 |
int previousKey = -1; |
1221 |
for (int key : map.keySet()) { |
1222 |
assertTrue(bs.get(key)); |
1223 |
size2++; |
1224 |
assertTrue(previousKey < 0 || |
1225 |
(ascending ? key - previousKey > 0 : key - previousKey < 0)); |
1226 |
previousKey = key; |
1227 |
} |
1228 |
assertEquals(size2, size); |
1229 |
|
1230 |
// Test navigation ops |
1231 |
for (int key = min - 1; key <= max + 1; key++) { |
1232 |
assertEq(map.lowerKey(key), rs.lower(key)); |
1233 |
assertEq(map.floorKey(key), rs.floor(key)); |
1234 |
assertEq(map.higherKey(key), rs.higher(key)); |
1235 |
assertEq(map.ceilingKey(key), rs.ceiling(key)); |
1236 |
} |
1237 |
|
1238 |
// Test extrema |
1239 |
if (map.size() != 0) { |
1240 |
assertEq(map.firstKey(), rs.first()); |
1241 |
assertEq(map.lastKey(), rs.last()); |
1242 |
} else { |
1243 |
assertEq(rs.first(), -1); |
1244 |
assertEq(rs.last(), -1); |
1245 |
try { |
1246 |
map.firstKey(); |
1247 |
shouldThrow(); |
1248 |
} catch (NoSuchElementException success) {} |
1249 |
try { |
1250 |
map.lastKey(); |
1251 |
shouldThrow(); |
1252 |
} catch (NoSuchElementException success) {} |
1253 |
} |
1254 |
} |
1255 |
|
1256 |
static void assertEq(Integer i, int j) { |
1257 |
if (i == null) |
1258 |
assertEquals(j, -1); |
1259 |
else |
1260 |
assertEquals((int) i, j); |
1261 |
} |
1262 |
|
1263 |
static boolean eq(Integer i, int j) { |
1264 |
return i == null ? j == -1 : i == j; |
1265 |
} |
1266 |
|
1267 |
} |