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/* |
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* Written by Doug Lea with assistance from members of JCP JSR-166 |
3 |
* Expert Group and released to the public domain, as explained at |
4 |
* http://creativecommons.org/licenses/publicdomain |
5 |
*/ |
6 |
|
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import junit.framework.*; |
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import java.util.*; |
9 |
import java.util.concurrent.*; |
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import java.io.*; |
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|
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public class ConcurrentSkipListMapTest extends JSR166TestCase { |
13 |
public static void main(String[] args) { |
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junit.textui.TestRunner.run (suite()); |
15 |
} |
16 |
public static Test suite() { |
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return new TestSuite(ConcurrentSkipListMapTest.class); |
18 |
} |
19 |
|
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/** |
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* Create a map from Integers 1-5 to Strings "A"-"E". |
22 |
*/ |
23 |
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; |
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} |
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|
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/** |
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* clear removes all pairs |
38 |
*/ |
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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(map.size(), 0); |
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} |
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|
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/** |
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* |
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*/ |
48 |
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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/** |
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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(count ,5); |
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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; |
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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(count ,5); |
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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; |
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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(count, 5); |
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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; |
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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(count, 5); |
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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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*/ |
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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)); |
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assertEquals(5, ar.length); |
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assertTrue(s.contains("A")); |
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assertTrue(s.contains("B")); |
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assertTrue(s.contains("C")); |
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assertTrue(s.contains("D")); |
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assertTrue(s.contains("E")); |
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} |
254 |
|
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/** |
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* values collection contains all values |
257 |
*/ |
258 |
public void testValues() { |
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ConcurrentSkipListMap map = map5(); |
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Collection s = map.values(); |
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assertEquals(5, s.size()); |
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assertTrue(s.contains("A")); |
263 |
assertTrue(s.contains("B")); |
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assertTrue(s.contains("C")); |
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assertTrue(s.contains("D")); |
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assertTrue(s.contains("E")); |
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} |
268 |
|
269 |
/** |
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* entrySet contains all pairs |
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*/ |
272 |
public void testEntrySet() { |
273 |
ConcurrentSkipListMap map = map5(); |
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Set s = map.entrySet(); |
275 |
assertEquals(5, s.size()); |
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Iterator it = s.iterator(); |
277 |
while (it.hasNext()) { |
278 |
Map.Entry e = (Map.Entry) it.next(); |
279 |
assertTrue( |
280 |
(e.getKey().equals(one) && e.getValue().equals("A")) || |
281 |
(e.getKey().equals(two) && e.getValue().equals("B")) || |
282 |
(e.getKey().equals(three) && e.getValue().equals("C")) || |
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(e.getKey().equals(four) && e.getValue().equals("D")) || |
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(e.getKey().equals(five) && e.getValue().equals("E"))); |
285 |
} |
286 |
} |
287 |
|
288 |
/** |
289 |
* descendingEntrySet contains all pairs |
290 |
*/ |
291 |
public void testDescendingEntrySet() { |
292 |
ConcurrentSkipListMap map = map5(); |
293 |
Set s = map.descendingMap().entrySet(); |
294 |
assertEquals(5, s.size()); |
295 |
Iterator it = s.iterator(); |
296 |
while (it.hasNext()) { |
297 |
Map.Entry e = (Map.Entry) it.next(); |
298 |
assertTrue( |
299 |
(e.getKey().equals(one) && e.getValue().equals("A")) || |
300 |
(e.getKey().equals(two) && e.getValue().equals("B")) || |
301 |
(e.getKey().equals(three) && e.getValue().equals("C")) || |
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(e.getKey().equals(four) && e.getValue().equals("D")) || |
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(e.getKey().equals(five) && e.getValue().equals("E"))); |
304 |
} |
305 |
} |
306 |
|
307 |
/** |
308 |
* entrySet.toArray contains all entries |
309 |
*/ |
310 |
public void testEntrySetToArray() { |
311 |
ConcurrentSkipListMap map = map5(); |
312 |
Set s = map.entrySet(); |
313 |
Object[] ar = s.toArray(); |
314 |
assertEquals(5, ar.length); |
315 |
for (int i = 0; i < 5; ++i) { |
316 |
assertTrue(map.containsKey(((Map.Entry)(ar[i])).getKey())); |
317 |
assertTrue(map.containsValue(((Map.Entry)(ar[i])).getValue())); |
318 |
} |
319 |
} |
320 |
|
321 |
/** |
322 |
* descendingEntrySet.toArray contains all entries |
323 |
*/ |
324 |
public void testDescendingEntrySetToArray() { |
325 |
ConcurrentSkipListMap map = map5(); |
326 |
Set s = map.descendingMap().entrySet(); |
327 |
Object[] ar = s.toArray(); |
328 |
assertEquals(5, ar.length); |
329 |
for (int i = 0; i < 5; ++i) { |
330 |
assertTrue(map.containsKey(((Map.Entry)(ar[i])).getKey())); |
331 |
assertTrue(map.containsValue(((Map.Entry)(ar[i])).getValue())); |
332 |
} |
333 |
} |
334 |
|
335 |
/** |
336 |
* putAll adds all key-value pairs from the given map |
337 |
*/ |
338 |
public void testPutAll() { |
339 |
ConcurrentSkipListMap empty = new ConcurrentSkipListMap(); |
340 |
ConcurrentSkipListMap map = map5(); |
341 |
empty.putAll(map); |
342 |
assertEquals(5, empty.size()); |
343 |
assertTrue(empty.containsKey(one)); |
344 |
assertTrue(empty.containsKey(two)); |
345 |
assertTrue(empty.containsKey(three)); |
346 |
assertTrue(empty.containsKey(four)); |
347 |
assertTrue(empty.containsKey(five)); |
348 |
} |
349 |
|
350 |
/** |
351 |
* putIfAbsent works when the given key is not present |
352 |
*/ |
353 |
public void testPutIfAbsent() { |
354 |
ConcurrentSkipListMap map = map5(); |
355 |
map.putIfAbsent(six, "Z"); |
356 |
assertTrue(map.containsKey(six)); |
357 |
} |
358 |
|
359 |
/** |
360 |
* putIfAbsent does not add the pair if the key is already present |
361 |
*/ |
362 |
public void testPutIfAbsent2() { |
363 |
ConcurrentSkipListMap map = map5(); |
364 |
assertEquals("A", map.putIfAbsent(one, "Z")); |
365 |
} |
366 |
|
367 |
/** |
368 |
* replace fails when the given key is not present |
369 |
*/ |
370 |
public void testReplace() { |
371 |
ConcurrentSkipListMap map = map5(); |
372 |
assertNull(map.replace(six, "Z")); |
373 |
assertFalse(map.containsKey(six)); |
374 |
} |
375 |
|
376 |
/** |
377 |
* replace succeeds if the key is already present |
378 |
*/ |
379 |
public void testReplace2() { |
380 |
ConcurrentSkipListMap map = map5(); |
381 |
assertNotNull(map.replace(one, "Z")); |
382 |
assertEquals("Z", map.get(one)); |
383 |
} |
384 |
|
385 |
|
386 |
/** |
387 |
* replace value fails when the given key not mapped to expected value |
388 |
*/ |
389 |
public void testReplaceValue() { |
390 |
ConcurrentSkipListMap map = map5(); |
391 |
assertEquals("A", map.get(one)); |
392 |
assertFalse(map.replace(one, "Z", "Z")); |
393 |
assertEquals("A", map.get(one)); |
394 |
} |
395 |
|
396 |
/** |
397 |
* replace value succeeds when the given key mapped to expected value |
398 |
*/ |
399 |
public void testReplaceValue2() { |
400 |
ConcurrentSkipListMap map = map5(); |
401 |
assertEquals("A", map.get(one)); |
402 |
assertTrue(map.replace(one, "A", "Z")); |
403 |
assertEquals("Z", map.get(one)); |
404 |
} |
405 |
|
406 |
|
407 |
/** |
408 |
* remove removes the correct key-value pair from the map |
409 |
*/ |
410 |
public void testRemove() { |
411 |
ConcurrentSkipListMap map = map5(); |
412 |
map.remove(five); |
413 |
assertEquals(4, map.size()); |
414 |
assertFalse(map.containsKey(five)); |
415 |
} |
416 |
|
417 |
/** |
418 |
* remove(key,value) removes only if pair present |
419 |
*/ |
420 |
public void testRemove2() { |
421 |
ConcurrentSkipListMap map = map5(); |
422 |
assertTrue(map.containsKey(five)); |
423 |
assertEquals("E", map.get(five)); |
424 |
map.remove(five, "E"); |
425 |
assertEquals(4, map.size()); |
426 |
assertFalse(map.containsKey(five)); |
427 |
map.remove(four, "A"); |
428 |
assertEquals(4, map.size()); |
429 |
assertTrue(map.containsKey(four)); |
430 |
|
431 |
} |
432 |
|
433 |
/** |
434 |
* lowerEntry returns preceding entry. |
435 |
*/ |
436 |
public void testLowerEntry() { |
437 |
ConcurrentSkipListMap map = map5(); |
438 |
Map.Entry e1 = map.lowerEntry(three); |
439 |
assertEquals(two, e1.getKey()); |
440 |
|
441 |
Map.Entry e2 = map.lowerEntry(six); |
442 |
assertEquals(five, e2.getKey()); |
443 |
|
444 |
Map.Entry e3 = map.lowerEntry(one); |
445 |
assertNull(e3); |
446 |
|
447 |
Map.Entry e4 = map.lowerEntry(zero); |
448 |
assertNull(e4); |
449 |
|
450 |
} |
451 |
|
452 |
/** |
453 |
* higherEntry returns next entry. |
454 |
*/ |
455 |
public void testHigherEntry() { |
456 |
ConcurrentSkipListMap map = map5(); |
457 |
Map.Entry e1 = map.higherEntry(three); |
458 |
assertEquals(four, e1.getKey()); |
459 |
|
460 |
Map.Entry e2 = map.higherEntry(zero); |
461 |
assertEquals(one, e2.getKey()); |
462 |
|
463 |
Map.Entry e3 = map.higherEntry(five); |
464 |
assertNull(e3); |
465 |
|
466 |
Map.Entry e4 = map.higherEntry(six); |
467 |
assertNull(e4); |
468 |
|
469 |
} |
470 |
|
471 |
/** |
472 |
* floorEntry returns preceding entry. |
473 |
*/ |
474 |
public void testFloorEntry() { |
475 |
ConcurrentSkipListMap map = map5(); |
476 |
Map.Entry e1 = map.floorEntry(three); |
477 |
assertEquals(three, e1.getKey()); |
478 |
|
479 |
Map.Entry e2 = map.floorEntry(six); |
480 |
assertEquals(five, e2.getKey()); |
481 |
|
482 |
Map.Entry e3 = map.floorEntry(one); |
483 |
assertEquals(one, e3.getKey()); |
484 |
|
485 |
Map.Entry e4 = map.floorEntry(zero); |
486 |
assertNull(e4); |
487 |
|
488 |
} |
489 |
|
490 |
/** |
491 |
* ceilingEntry returns next entry. |
492 |
*/ |
493 |
public void testCeilingEntry() { |
494 |
ConcurrentSkipListMap map = map5(); |
495 |
Map.Entry e1 = map.ceilingEntry(three); |
496 |
assertEquals(three, e1.getKey()); |
497 |
|
498 |
Map.Entry e2 = map.ceilingEntry(zero); |
499 |
assertEquals(one, e2.getKey()); |
500 |
|
501 |
Map.Entry e3 = map.ceilingEntry(five); |
502 |
assertEquals(five, e3.getKey()); |
503 |
|
504 |
Map.Entry e4 = map.ceilingEntry(six); |
505 |
assertNull(e4); |
506 |
|
507 |
} |
508 |
|
509 |
/** |
510 |
* lowerEntry, higherEntry, ceilingEntry, and floorEntry return |
511 |
* imutable entries |
512 |
*/ |
513 |
public void testEntryImmutablity() { |
514 |
ConcurrentSkipListMap map = map5(); |
515 |
Map.Entry e = map.lowerEntry(three); |
516 |
assertEquals(two, e.getKey()); |
517 |
try { |
518 |
e.setValue("X"); |
519 |
shouldThrow(); |
520 |
} catch (UnsupportedOperationException success) {} |
521 |
e = map.higherEntry(zero); |
522 |
assertEquals(one, e.getKey()); |
523 |
try { |
524 |
e.setValue("X"); |
525 |
shouldThrow(); |
526 |
} catch (UnsupportedOperationException success) {} |
527 |
e = map.floorEntry(one); |
528 |
assertEquals(one, e.getKey()); |
529 |
try { |
530 |
e.setValue("X"); |
531 |
shouldThrow(); |
532 |
} catch (UnsupportedOperationException success) {} |
533 |
e = map.ceilingEntry(five); |
534 |
assertEquals(five, e.getKey()); |
535 |
try { |
536 |
e.setValue("X"); |
537 |
shouldThrow(); |
538 |
} catch (UnsupportedOperationException success) {} |
539 |
} |
540 |
|
541 |
|
542 |
|
543 |
/** |
544 |
* lowerKey returns preceding element |
545 |
*/ |
546 |
public void testLowerKey() { |
547 |
ConcurrentSkipListMap q = map5(); |
548 |
Object e1 = q.lowerKey(three); |
549 |
assertEquals(two, e1); |
550 |
|
551 |
Object e2 = q.lowerKey(six); |
552 |
assertEquals(five, e2); |
553 |
|
554 |
Object e3 = q.lowerKey(one); |
555 |
assertNull(e3); |
556 |
|
557 |
Object e4 = q.lowerKey(zero); |
558 |
assertNull(e4); |
559 |
|
560 |
} |
561 |
|
562 |
/** |
563 |
* higherKey returns next element |
564 |
*/ |
565 |
public void testHigherKey() { |
566 |
ConcurrentSkipListMap q = map5(); |
567 |
Object e1 = q.higherKey(three); |
568 |
assertEquals(four, e1); |
569 |
|
570 |
Object e2 = q.higherKey(zero); |
571 |
assertEquals(one, e2); |
572 |
|
573 |
Object e3 = q.higherKey(five); |
574 |
assertNull(e3); |
575 |
|
576 |
Object e4 = q.higherKey(six); |
577 |
assertNull(e4); |
578 |
|
579 |
} |
580 |
|
581 |
/** |
582 |
* floorKey returns preceding element |
583 |
*/ |
584 |
public void testFloorKey() { |
585 |
ConcurrentSkipListMap q = map5(); |
586 |
Object e1 = q.floorKey(three); |
587 |
assertEquals(three, e1); |
588 |
|
589 |
Object e2 = q.floorKey(six); |
590 |
assertEquals(five, e2); |
591 |
|
592 |
Object e3 = q.floorKey(one); |
593 |
assertEquals(one, e3); |
594 |
|
595 |
Object e4 = q.floorKey(zero); |
596 |
assertNull(e4); |
597 |
|
598 |
} |
599 |
|
600 |
/** |
601 |
* ceilingKey returns next element |
602 |
*/ |
603 |
public void testCeilingKey() { |
604 |
ConcurrentSkipListMap q = map5(); |
605 |
Object e1 = q.ceilingKey(three); |
606 |
assertEquals(three, e1); |
607 |
|
608 |
Object e2 = q.ceilingKey(zero); |
609 |
assertEquals(one, e2); |
610 |
|
611 |
Object e3 = q.ceilingKey(five); |
612 |
assertEquals(five, e3); |
613 |
|
614 |
Object e4 = q.ceilingKey(six); |
615 |
assertNull(e4); |
616 |
|
617 |
} |
618 |
|
619 |
/** |
620 |
* pollFirstEntry returns entries in order |
621 |
*/ |
622 |
public void testPollFirstEntry() { |
623 |
ConcurrentSkipListMap map = map5(); |
624 |
Map.Entry e = map.pollFirstEntry(); |
625 |
assertEquals(one, e.getKey()); |
626 |
assertEquals("A", e.getValue()); |
627 |
e = map.pollFirstEntry(); |
628 |
assertEquals(two, e.getKey()); |
629 |
map.put(one, "A"); |
630 |
e = map.pollFirstEntry(); |
631 |
assertEquals(one, e.getKey()); |
632 |
assertEquals("A", e.getValue()); |
633 |
e = map.pollFirstEntry(); |
634 |
assertEquals(three, e.getKey()); |
635 |
map.remove(four); |
636 |
e = map.pollFirstEntry(); |
637 |
assertEquals(five, e.getKey()); |
638 |
try { |
639 |
e.setValue("A"); |
640 |
shouldThrow(); |
641 |
} catch (UnsupportedOperationException success) {} |
642 |
e = map.pollFirstEntry(); |
643 |
assertNull(e); |
644 |
} |
645 |
|
646 |
/** |
647 |
* pollLastEntry returns entries in order |
648 |
*/ |
649 |
public void testPollLastEntry() { |
650 |
ConcurrentSkipListMap map = map5(); |
651 |
Map.Entry e = map.pollLastEntry(); |
652 |
assertEquals(five, e.getKey()); |
653 |
assertEquals("E", e.getValue()); |
654 |
e = map.pollLastEntry(); |
655 |
assertEquals(four, e.getKey()); |
656 |
map.put(five, "E"); |
657 |
e = map.pollLastEntry(); |
658 |
assertEquals(five, e.getKey()); |
659 |
assertEquals("E", e.getValue()); |
660 |
e = map.pollLastEntry(); |
661 |
assertEquals(three, e.getKey()); |
662 |
map.remove(two); |
663 |
e = map.pollLastEntry(); |
664 |
assertEquals(one, e.getKey()); |
665 |
try { |
666 |
e.setValue("E"); |
667 |
shouldThrow(); |
668 |
} catch (UnsupportedOperationException success) {} |
669 |
e = map.pollLastEntry(); |
670 |
assertNull(e); |
671 |
} |
672 |
|
673 |
/** |
674 |
* size returns the correct values |
675 |
*/ |
676 |
public void testSize() { |
677 |
ConcurrentSkipListMap map = map5(); |
678 |
ConcurrentSkipListMap empty = new ConcurrentSkipListMap(); |
679 |
assertEquals(0, empty.size()); |
680 |
assertEquals(5, map.size()); |
681 |
} |
682 |
|
683 |
/** |
684 |
* toString contains toString of elements |
685 |
*/ |
686 |
public void testToString() { |
687 |
ConcurrentSkipListMap map = map5(); |
688 |
String s = map.toString(); |
689 |
for (int i = 1; i <= 5; ++i) { |
690 |
assertTrue(s.indexOf(String.valueOf(i)) >= 0); |
691 |
} |
692 |
} |
693 |
|
694 |
// Exception tests |
695 |
|
696 |
/** |
697 |
* get(null) of nonempty map throws NPE |
698 |
*/ |
699 |
public void testGet_NullPointerException() { |
700 |
try { |
701 |
ConcurrentSkipListMap c = map5(); |
702 |
c.get(null); |
703 |
shouldThrow(); |
704 |
} catch (NullPointerException success) {} |
705 |
} |
706 |
|
707 |
/** |
708 |
* containsKey(null) of nonempty map throws NPE |
709 |
*/ |
710 |
public void testContainsKey_NullPointerException() { |
711 |
try { |
712 |
ConcurrentSkipListMap c = map5(); |
713 |
c.containsKey(null); |
714 |
shouldThrow(); |
715 |
} catch (NullPointerException success) {} |
716 |
} |
717 |
|
718 |
/** |
719 |
* containsValue(null) throws NPE |
720 |
*/ |
721 |
public void testContainsValue_NullPointerException() { |
722 |
try { |
723 |
ConcurrentSkipListMap c = new ConcurrentSkipListMap(); |
724 |
c.containsValue(null); |
725 |
shouldThrow(); |
726 |
} catch (NullPointerException success) {} |
727 |
} |
728 |
|
729 |
|
730 |
/** |
731 |
* put(null,x) throws NPE |
732 |
*/ |
733 |
public void testPut1_NullPointerException() { |
734 |
try { |
735 |
ConcurrentSkipListMap c = map5(); |
736 |
c.put(null, "whatever"); |
737 |
shouldThrow(); |
738 |
} catch (NullPointerException success) {} |
739 |
} |
740 |
|
741 |
/** |
742 |
* putIfAbsent(null, x) throws NPE |
743 |
*/ |
744 |
public void testPutIfAbsent1_NullPointerException() { |
745 |
try { |
746 |
ConcurrentSkipListMap c = map5(); |
747 |
c.putIfAbsent(null, "whatever"); |
748 |
shouldThrow(); |
749 |
} catch (NullPointerException success) {} |
750 |
} |
751 |
|
752 |
/** |
753 |
* replace(null, x) throws NPE |
754 |
*/ |
755 |
public void testReplace_NullPointerException() { |
756 |
try { |
757 |
ConcurrentSkipListMap c = map5(); |
758 |
c.replace(null, "whatever"); |
759 |
shouldThrow(); |
760 |
} catch (NullPointerException success) {} |
761 |
} |
762 |
|
763 |
/** |
764 |
* replace(null, x, y) throws NPE |
765 |
*/ |
766 |
public void testReplaceValue_NullPointerException() { |
767 |
try { |
768 |
ConcurrentSkipListMap c = map5(); |
769 |
c.replace(null, one, "whatever"); |
770 |
shouldThrow(); |
771 |
} catch (NullPointerException success) {} |
772 |
} |
773 |
|
774 |
/** |
775 |
* remove(null) throws NPE |
776 |
*/ |
777 |
public void testRemove1_NullPointerException() { |
778 |
try { |
779 |
ConcurrentSkipListMap c = new ConcurrentSkipListMap(); |
780 |
c.put("sadsdf", "asdads"); |
781 |
c.remove(null); |
782 |
shouldThrow(); |
783 |
} catch (NullPointerException success) {} |
784 |
} |
785 |
|
786 |
/** |
787 |
* remove(null, x) throws NPE |
788 |
*/ |
789 |
public void testRemove2_NullPointerException() { |
790 |
try { |
791 |
ConcurrentSkipListMap c = new ConcurrentSkipListMap(); |
792 |
c.put("sadsdf", "asdads"); |
793 |
c.remove(null, "whatever"); |
794 |
shouldThrow(); |
795 |
} catch (NullPointerException success) {} |
796 |
} |
797 |
|
798 |
/** |
799 |
* remove(x, null) returns false |
800 |
*/ |
801 |
public void testRemove3() { |
802 |
ConcurrentSkipListMap c = new ConcurrentSkipListMap(); |
803 |
c.put("sadsdf", "asdads"); |
804 |
assertFalse(c.remove("sadsdf", null)); |
805 |
} |
806 |
|
807 |
/** |
808 |
* A deserialized map equals original |
809 |
*/ |
810 |
public void testSerialization() throws Exception { |
811 |
ConcurrentSkipListMap q = map5(); |
812 |
|
813 |
ByteArrayOutputStream bout = new ByteArrayOutputStream(10000); |
814 |
ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout)); |
815 |
out.writeObject(q); |
816 |
out.close(); |
817 |
|
818 |
ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray()); |
819 |
ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin)); |
820 |
ConcurrentSkipListMap r = (ConcurrentSkipListMap)in.readObject(); |
821 |
assertEquals(q.size(), r.size()); |
822 |
assertTrue(q.equals(r)); |
823 |
assertTrue(r.equals(q)); |
824 |
} |
825 |
|
826 |
|
827 |
|
828 |
/** |
829 |
* subMap returns map with keys in requested range |
830 |
*/ |
831 |
public void testSubMapContents() { |
832 |
ConcurrentSkipListMap map = map5(); |
833 |
NavigableMap sm = map.subMap(two, true, four, false); |
834 |
assertEquals(two, sm.firstKey()); |
835 |
assertEquals(three, sm.lastKey()); |
836 |
assertEquals(2, sm.size()); |
837 |
assertFalse(sm.containsKey(one)); |
838 |
assertTrue(sm.containsKey(two)); |
839 |
assertTrue(sm.containsKey(three)); |
840 |
assertFalse(sm.containsKey(four)); |
841 |
assertFalse(sm.containsKey(five)); |
842 |
Iterator i = sm.keySet().iterator(); |
843 |
Object k; |
844 |
k = (Integer)(i.next()); |
845 |
assertEquals(two, k); |
846 |
k = (Integer)(i.next()); |
847 |
assertEquals(three, k); |
848 |
assertFalse(i.hasNext()); |
849 |
Iterator r = sm.descendingKeySet().iterator(); |
850 |
k = (Integer)(r.next()); |
851 |
assertEquals(three, k); |
852 |
k = (Integer)(r.next()); |
853 |
assertEquals(two, k); |
854 |
assertFalse(r.hasNext()); |
855 |
|
856 |
Iterator j = sm.keySet().iterator(); |
857 |
j.next(); |
858 |
j.remove(); |
859 |
assertFalse(map.containsKey(two)); |
860 |
assertEquals(4, map.size()); |
861 |
assertEquals(1, sm.size()); |
862 |
assertEquals(three, sm.firstKey()); |
863 |
assertEquals(three, sm.lastKey()); |
864 |
assertEquals("C", sm.remove(three)); |
865 |
assertTrue(sm.isEmpty()); |
866 |
assertEquals(3, map.size()); |
867 |
} |
868 |
|
869 |
public void testSubMapContents2() { |
870 |
ConcurrentSkipListMap map = map5(); |
871 |
NavigableMap sm = map.subMap(two, true, three, false); |
872 |
assertEquals(1, sm.size()); |
873 |
assertEquals(two, sm.firstKey()); |
874 |
assertEquals(two, sm.lastKey()); |
875 |
assertFalse(sm.containsKey(one)); |
876 |
assertTrue(sm.containsKey(two)); |
877 |
assertFalse(sm.containsKey(three)); |
878 |
assertFalse(sm.containsKey(four)); |
879 |
assertFalse(sm.containsKey(five)); |
880 |
Iterator i = sm.keySet().iterator(); |
881 |
Object k; |
882 |
k = (Integer)(i.next()); |
883 |
assertEquals(two, k); |
884 |
assertFalse(i.hasNext()); |
885 |
Iterator r = sm.descendingKeySet().iterator(); |
886 |
k = (Integer)(r.next()); |
887 |
assertEquals(two, k); |
888 |
assertFalse(r.hasNext()); |
889 |
|
890 |
Iterator j = sm.keySet().iterator(); |
891 |
j.next(); |
892 |
j.remove(); |
893 |
assertFalse(map.containsKey(two)); |
894 |
assertEquals(4, map.size()); |
895 |
assertEquals(0, sm.size()); |
896 |
assertTrue(sm.isEmpty()); |
897 |
assertSame(sm.remove(three), null); |
898 |
assertEquals(4, map.size()); |
899 |
} |
900 |
|
901 |
/** |
902 |
* headMap returns map with keys in requested range |
903 |
*/ |
904 |
public void testHeadMapContents() { |
905 |
ConcurrentSkipListMap map = map5(); |
906 |
NavigableMap sm = map.headMap(four, false); |
907 |
assertTrue(sm.containsKey(one)); |
908 |
assertTrue(sm.containsKey(two)); |
909 |
assertTrue(sm.containsKey(three)); |
910 |
assertFalse(sm.containsKey(four)); |
911 |
assertFalse(sm.containsKey(five)); |
912 |
Iterator i = sm.keySet().iterator(); |
913 |
Object k; |
914 |
k = (Integer)(i.next()); |
915 |
assertEquals(one, k); |
916 |
k = (Integer)(i.next()); |
917 |
assertEquals(two, k); |
918 |
k = (Integer)(i.next()); |
919 |
assertEquals(three, k); |
920 |
assertFalse(i.hasNext()); |
921 |
sm.clear(); |
922 |
assertTrue(sm.isEmpty()); |
923 |
assertEquals(2, map.size()); |
924 |
assertEquals(four, map.firstKey()); |
925 |
} |
926 |
|
927 |
/** |
928 |
* tailMap returns map with keys in requested range |
929 |
*/ |
930 |
public void testTailMapContents() { |
931 |
ConcurrentSkipListMap map = map5(); |
932 |
NavigableMap sm = map.tailMap(two, true); |
933 |
assertFalse(sm.containsKey(one)); |
934 |
assertTrue(sm.containsKey(two)); |
935 |
assertTrue(sm.containsKey(three)); |
936 |
assertTrue(sm.containsKey(four)); |
937 |
assertTrue(sm.containsKey(five)); |
938 |
Iterator i = sm.keySet().iterator(); |
939 |
Object k; |
940 |
k = (Integer)(i.next()); |
941 |
assertEquals(two, k); |
942 |
k = (Integer)(i.next()); |
943 |
assertEquals(three, k); |
944 |
k = (Integer)(i.next()); |
945 |
assertEquals(four, k); |
946 |
k = (Integer)(i.next()); |
947 |
assertEquals(five, k); |
948 |
assertFalse(i.hasNext()); |
949 |
Iterator r = sm.descendingKeySet().iterator(); |
950 |
k = (Integer)(r.next()); |
951 |
assertEquals(five, k); |
952 |
k = (Integer)(r.next()); |
953 |
assertEquals(four, k); |
954 |
k = (Integer)(r.next()); |
955 |
assertEquals(three, k); |
956 |
k = (Integer)(r.next()); |
957 |
assertEquals(two, k); |
958 |
assertFalse(r.hasNext()); |
959 |
|
960 |
Iterator ei = sm.entrySet().iterator(); |
961 |
Map.Entry e; |
962 |
e = (Map.Entry)(ei.next()); |
963 |
assertEquals(two, e.getKey()); |
964 |
assertEquals("B", e.getValue()); |
965 |
e = (Map.Entry)(ei.next()); |
966 |
assertEquals(three, e.getKey()); |
967 |
assertEquals("C", e.getValue()); |
968 |
e = (Map.Entry)(ei.next()); |
969 |
assertEquals(four, e.getKey()); |
970 |
assertEquals("D", e.getValue()); |
971 |
e = (Map.Entry)(ei.next()); |
972 |
assertEquals(five, e.getKey()); |
973 |
assertEquals("E", e.getValue()); |
974 |
assertFalse(i.hasNext()); |
975 |
|
976 |
NavigableMap ssm = sm.tailMap(four, true); |
977 |
assertEquals(four, ssm.firstKey()); |
978 |
assertEquals(five, ssm.lastKey()); |
979 |
assertEquals("D", ssm.remove(four)); |
980 |
assertEquals(1, ssm.size()); |
981 |
assertEquals(3, sm.size()); |
982 |
assertEquals(4, map.size()); |
983 |
} |
984 |
|
985 |
Random rnd = new Random(666); |
986 |
BitSet bs; |
987 |
|
988 |
/** |
989 |
* Submaps of submaps subdivide correctly |
990 |
*/ |
991 |
public void testRecursiveSubMaps() throws Exception { |
992 |
int mapSize = 1000; |
993 |
Class cl = ConcurrentSkipListMap.class; |
994 |
NavigableMap<Integer, Integer> map = newMap(cl); |
995 |
bs = new BitSet(mapSize); |
996 |
|
997 |
populate(map, mapSize); |
998 |
check(map, 0, mapSize - 1, true); |
999 |
check(map.descendingMap(), 0, mapSize - 1, false); |
1000 |
|
1001 |
mutateMap(map, 0, mapSize - 1); |
1002 |
check(map, 0, mapSize - 1, true); |
1003 |
check(map.descendingMap(), 0, mapSize - 1, false); |
1004 |
|
1005 |
bashSubMap(map.subMap(0, true, mapSize, false), |
1006 |
0, mapSize - 1, true); |
1007 |
} |
1008 |
|
1009 |
static NavigableMap<Integer, Integer> newMap(Class cl) throws Exception { |
1010 |
NavigableMap<Integer, Integer> result = |
1011 |
(NavigableMap<Integer, Integer>) cl.newInstance(); |
1012 |
assertEquals(result.size(), 0); |
1013 |
assertFalse(result.keySet().iterator().hasNext()); |
1014 |
return result; |
1015 |
} |
1016 |
|
1017 |
void populate(NavigableMap<Integer, Integer> map, int limit) { |
1018 |
for (int i = 0, n = 2 * limit / 3; i < n; i++) { |
1019 |
int key = rnd.nextInt(limit); |
1020 |
put(map, key); |
1021 |
} |
1022 |
} |
1023 |
|
1024 |
void mutateMap(NavigableMap<Integer, Integer> map, int min, int max) { |
1025 |
int size = map.size(); |
1026 |
int rangeSize = max - min + 1; |
1027 |
|
1028 |
// Remove a bunch of entries directly |
1029 |
for (int i = 0, n = rangeSize / 2; i < n; i++) { |
1030 |
remove(map, min - 5 + rnd.nextInt(rangeSize + 10)); |
1031 |
} |
1032 |
|
1033 |
// Remove a bunch of entries with iterator |
1034 |
for (Iterator<Integer> it = map.keySet().iterator(); it.hasNext(); ) { |
1035 |
if (rnd.nextBoolean()) { |
1036 |
bs.clear(it.next()); |
1037 |
it.remove(); |
1038 |
} |
1039 |
} |
1040 |
|
1041 |
// Add entries till we're back to original size |
1042 |
while (map.size() < size) { |
1043 |
int key = min + rnd.nextInt(rangeSize); |
1044 |
assertTrue(key >= min && key<= max); |
1045 |
put(map, key); |
1046 |
} |
1047 |
} |
1048 |
|
1049 |
void mutateSubMap(NavigableMap<Integer, Integer> map, int min, int max) { |
1050 |
int size = map.size(); |
1051 |
int rangeSize = max - min + 1; |
1052 |
|
1053 |
// Remove a bunch of entries directly |
1054 |
for (int i = 0, n = rangeSize / 2; i < n; i++) { |
1055 |
remove(map, min - 5 + rnd.nextInt(rangeSize + 10)); |
1056 |
} |
1057 |
|
1058 |
// Remove a bunch of entries with iterator |
1059 |
for (Iterator<Integer> it = map.keySet().iterator(); it.hasNext(); ) { |
1060 |
if (rnd.nextBoolean()) { |
1061 |
bs.clear(it.next()); |
1062 |
it.remove(); |
1063 |
} |
1064 |
} |
1065 |
|
1066 |
// Add entries till we're back to original size |
1067 |
while (map.size() < size) { |
1068 |
int key = min - 5 + rnd.nextInt(rangeSize + 10); |
1069 |
if (key >= min && key<= max) { |
1070 |
put(map, key); |
1071 |
} else { |
1072 |
try { |
1073 |
map.put(key, 2 * key); |
1074 |
shouldThrow(); |
1075 |
} catch (IllegalArgumentException success) {} |
1076 |
} |
1077 |
} |
1078 |
} |
1079 |
|
1080 |
void put(NavigableMap<Integer, Integer> map, int key) { |
1081 |
if (map.put(key, 2 * key) == null) |
1082 |
bs.set(key); |
1083 |
} |
1084 |
|
1085 |
void remove(NavigableMap<Integer, Integer> map, int key) { |
1086 |
if (map.remove(key) != null) |
1087 |
bs.clear(key); |
1088 |
} |
1089 |
|
1090 |
void bashSubMap(NavigableMap<Integer, Integer> map, |
1091 |
int min, int max, boolean ascending) { |
1092 |
check(map, min, max, ascending); |
1093 |
check(map.descendingMap(), min, max, !ascending); |
1094 |
|
1095 |
mutateSubMap(map, min, max); |
1096 |
check(map, min, max, ascending); |
1097 |
check(map.descendingMap(), min, max, !ascending); |
1098 |
|
1099 |
// Recurse |
1100 |
if (max - min < 2) |
1101 |
return; |
1102 |
int midPoint = (min + max) / 2; |
1103 |
|
1104 |
// headMap - pick direction and endpoint inclusion randomly |
1105 |
boolean incl = rnd.nextBoolean(); |
1106 |
NavigableMap<Integer,Integer> hm = map.headMap(midPoint, incl); |
1107 |
if (ascending) { |
1108 |
if (rnd.nextBoolean()) |
1109 |
bashSubMap(hm, min, midPoint - (incl ? 0 : 1), true); |
1110 |
else |
1111 |
bashSubMap(hm.descendingMap(), min, midPoint - (incl ? 0 : 1), |
1112 |
false); |
1113 |
} else { |
1114 |
if (rnd.nextBoolean()) |
1115 |
bashSubMap(hm, midPoint + (incl ? 0 : 1), max, false); |
1116 |
else |
1117 |
bashSubMap(hm.descendingMap(), midPoint + (incl ? 0 : 1), max, |
1118 |
true); |
1119 |
} |
1120 |
|
1121 |
// tailMap - pick direction and endpoint inclusion randomly |
1122 |
incl = rnd.nextBoolean(); |
1123 |
NavigableMap<Integer,Integer> tm = map.tailMap(midPoint,incl); |
1124 |
if (ascending) { |
1125 |
if (rnd.nextBoolean()) |
1126 |
bashSubMap(tm, midPoint + (incl ? 0 : 1), max, true); |
1127 |
else |
1128 |
bashSubMap(tm.descendingMap(), midPoint + (incl ? 0 : 1), max, |
1129 |
false); |
1130 |
} else { |
1131 |
if (rnd.nextBoolean()) { |
1132 |
bashSubMap(tm, min, midPoint - (incl ? 0 : 1), false); |
1133 |
} else { |
1134 |
bashSubMap(tm.descendingMap(), min, midPoint - (incl ? 0 : 1), |
1135 |
true); |
1136 |
} |
1137 |
} |
1138 |
|
1139 |
// subMap - pick direction and endpoint inclusion randomly |
1140 |
int rangeSize = max - min + 1; |
1141 |
int[] endpoints = new int[2]; |
1142 |
endpoints[0] = min + rnd.nextInt(rangeSize); |
1143 |
endpoints[1] = min + rnd.nextInt(rangeSize); |
1144 |
Arrays.sort(endpoints); |
1145 |
boolean lowIncl = rnd.nextBoolean(); |
1146 |
boolean highIncl = rnd.nextBoolean(); |
1147 |
if (ascending) { |
1148 |
NavigableMap<Integer,Integer> sm = map.subMap( |
1149 |
endpoints[0], lowIncl, endpoints[1], highIncl); |
1150 |
if (rnd.nextBoolean()) |
1151 |
bashSubMap(sm, endpoints[0] + (lowIncl ? 0 : 1), |
1152 |
endpoints[1] - (highIncl ? 0 : 1), true); |
1153 |
else |
1154 |
bashSubMap(sm.descendingMap(), endpoints[0] + (lowIncl ? 0 : 1), |
1155 |
endpoints[1] - (highIncl ? 0 : 1), false); |
1156 |
} else { |
1157 |
NavigableMap<Integer,Integer> sm = map.subMap( |
1158 |
endpoints[1], highIncl, endpoints[0], lowIncl); |
1159 |
if (rnd.nextBoolean()) |
1160 |
bashSubMap(sm, endpoints[0] + (lowIncl ? 0 : 1), |
1161 |
endpoints[1] - (highIncl ? 0 : 1), false); |
1162 |
else |
1163 |
bashSubMap(sm.descendingMap(), endpoints[0] + (lowIncl ? 0 : 1), |
1164 |
endpoints[1] - (highIncl ? 0 : 1), true); |
1165 |
} |
1166 |
} |
1167 |
|
1168 |
/** |
1169 |
* min and max are both inclusive. If max < min, interval is empty. |
1170 |
*/ |
1171 |
void check(NavigableMap<Integer, Integer> map, |
1172 |
final int min, final int max, final boolean ascending) { |
1173 |
class ReferenceSet { |
1174 |
int lower(int key) { |
1175 |
return ascending ? lowerAscending(key) : higherAscending(key); |
1176 |
} |
1177 |
int floor(int key) { |
1178 |
return ascending ? floorAscending(key) : ceilingAscending(key); |
1179 |
} |
1180 |
int ceiling(int key) { |
1181 |
return ascending ? ceilingAscending(key) : floorAscending(key); |
1182 |
} |
1183 |
int higher(int key) { |
1184 |
return ascending ? higherAscending(key) : lowerAscending(key); |
1185 |
} |
1186 |
int first() { |
1187 |
return ascending ? firstAscending() : lastAscending(); |
1188 |
} |
1189 |
int last() { |
1190 |
return ascending ? lastAscending() : firstAscending(); |
1191 |
} |
1192 |
int lowerAscending(int key) { |
1193 |
return floorAscending(key - 1); |
1194 |
} |
1195 |
int floorAscending(int key) { |
1196 |
if (key < min) |
1197 |
return -1; |
1198 |
else if (key > max) |
1199 |
key = max; |
1200 |
|
1201 |
// BitSet should support this! Test would run much faster |
1202 |
while (key >= min) { |
1203 |
if (bs.get(key)) |
1204 |
return(key); |
1205 |
key--; |
1206 |
} |
1207 |
return -1; |
1208 |
} |
1209 |
int ceilingAscending(int key) { |
1210 |
if (key < min) |
1211 |
key = min; |
1212 |
else if (key > max) |
1213 |
return -1; |
1214 |
int result = bs.nextSetBit(key); |
1215 |
return result > max ? -1 : result; |
1216 |
} |
1217 |
int higherAscending(int key) { |
1218 |
return ceilingAscending(key + 1); |
1219 |
} |
1220 |
private int firstAscending() { |
1221 |
int result = ceilingAscending(min); |
1222 |
return result > max ? -1 : result; |
1223 |
} |
1224 |
private int lastAscending() { |
1225 |
int result = floorAscending(max); |
1226 |
return result < min ? -1 : result; |
1227 |
} |
1228 |
} |
1229 |
ReferenceSet rs = new ReferenceSet(); |
1230 |
|
1231 |
// Test contents using containsKey |
1232 |
int size = 0; |
1233 |
for (int i = min; i <= max; i++) { |
1234 |
boolean bsContainsI = bs.get(i); |
1235 |
assertEquals(bsContainsI, map.containsKey(i)); |
1236 |
if (bsContainsI) |
1237 |
size++; |
1238 |
} |
1239 |
assertEquals(map.size(), size); |
1240 |
|
1241 |
// Test contents using contains keySet iterator |
1242 |
int size2 = 0; |
1243 |
int previousKey = -1; |
1244 |
for (int key : map.keySet()) { |
1245 |
assertTrue(bs.get(key)); |
1246 |
size2++; |
1247 |
assertTrue(previousKey < 0 || |
1248 |
(ascending ? key - previousKey > 0 : key - previousKey < 0)); |
1249 |
previousKey = key; |
1250 |
} |
1251 |
assertEquals(size2, size); |
1252 |
|
1253 |
// Test navigation ops |
1254 |
for (int key = min - 1; key <= max + 1; key++) { |
1255 |
assertEq(map.lowerKey(key), rs.lower(key)); |
1256 |
assertEq(map.floorKey(key), rs.floor(key)); |
1257 |
assertEq(map.higherKey(key), rs.higher(key)); |
1258 |
assertEq(map.ceilingKey(key), rs.ceiling(key)); |
1259 |
} |
1260 |
|
1261 |
// Test extrema |
1262 |
if (map.size() != 0) { |
1263 |
assertEq(map.firstKey(), rs.first()); |
1264 |
assertEq(map.lastKey(), rs.last()); |
1265 |
} else { |
1266 |
assertEq(rs.first(), -1); |
1267 |
assertEq(rs.last(), -1); |
1268 |
try { |
1269 |
map.firstKey(); |
1270 |
shouldThrow(); |
1271 |
} catch (NoSuchElementException success) {} |
1272 |
try { |
1273 |
map.lastKey(); |
1274 |
shouldThrow(); |
1275 |
} catch (NoSuchElementException success) {} |
1276 |
} |
1277 |
} |
1278 |
|
1279 |
static void assertEq(Integer i, int j) { |
1280 |
if (i == null) |
1281 |
assertEquals(j, -1); |
1282 |
else |
1283 |
assertEquals((int) i, j); |
1284 |
} |
1285 |
|
1286 |
static boolean eq(Integer i, int j) { |
1287 |
return i == null ? j == -1 : i == j; |
1288 |
} |
1289 |
|
1290 |
} |