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/* |
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* Written by members of JCP JSR-166 Expert Group and released to the |
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* public domain. Use, modify, and redistribute this code in any way |
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* without acknowledgement. Other contributors include Andrew Wright, |
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* Jeffrey Hayes, Pat Fischer, Mike Judd. |
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* Written by Doug Lea with assistance from members of JCP JSR-166 |
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* Expert Group and released to the public domain, as explained at |
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* http://creativecommons.org/publicdomain/zero/1.0/ |
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* Other contributors include Andrew Wright, Jeffrey Hayes, |
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* Pat Fisher, Mike Judd. |
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*/ |
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import junit.framework.*; |
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import java.util.*; |
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import java.util.concurrent.*; |
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import java.util.Enumeration; |
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import java.io.*; |
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import java.util.concurrent.ConcurrentHashMap; |
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|
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public class ConcurrentHashMapTest extends JSR166TestCase{ |
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public class ConcurrentHashMapTest extends JSR166TestCase { |
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public static void main(String[] args) { |
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junit.textui.TestRunner.run (suite()); |
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junit.textui.TestRunner.run(suite()); |
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} |
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public static Test suite() { |
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return new TestSuite(ConcurrentHashMapTest.class); |
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return new TestSuite(ConcurrentHashMapTest.class); |
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} |
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|
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private static ConcurrentHashMap map5() { |
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ConcurrentHashMap map = new ConcurrentHashMap(5); |
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/** |
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* Returns a new map from Integers 1-5 to Strings "A"-"E". |
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*/ |
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private static ConcurrentHashMap map5() { |
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ConcurrentHashMap map = new ConcurrentHashMap(5); |
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assertTrue(map.isEmpty()); |
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map.put(one, "A"); |
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map.put(two, "B"); |
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map.put(three, "C"); |
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map.put(four, "D"); |
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map.put(five, "E"); |
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map.put(one, "A"); |
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map.put(two, "B"); |
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map.put(three, "C"); |
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map.put(four, "D"); |
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map.put(five, "E"); |
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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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return map; |
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} |
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|
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/** Re-implement Integer.compare for old java versions */ |
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static int compare(int x, int y) { return x < y ? -1 : x > y ? 1 : 0; } |
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|
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// classes for testing Comparable fallbacks |
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static class BI implements Comparable<BI> { |
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private final int value; |
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BI(int value) { this.value = value; } |
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public int compareTo(BI other) { |
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return compare(value, other.value); |
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} |
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public boolean equals(Object x) { |
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return (x instanceof BI) && ((BI)x).value == value; |
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} |
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public int hashCode() { return 42; } |
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} |
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static class CI extends BI { CI(int value) { super(value); } } |
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static class DI extends BI { DI(int value) { super(value); } } |
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|
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static class BS implements Comparable<BS> { |
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private final String value; |
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BS(String value) { this.value = value; } |
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public int compareTo(BS other) { |
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return value.compareTo(other.value); |
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} |
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public boolean equals(Object x) { |
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return (x instanceof BS) && value.equals(((BS)x).value); |
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} |
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public int hashCode() { return 42; } |
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} |
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|
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static class LexicographicList<E extends Comparable<E>> extends ArrayList<E> |
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implements Comparable<LexicographicList<E>> { |
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LexicographicList(Collection<E> c) { super(c); } |
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LexicographicList(E e) { super(Collections.singleton(e)); } |
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public int compareTo(LexicographicList<E> other) { |
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int common = Math.min(size(), other.size()); |
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int r = 0; |
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for (int i = 0; i < common; i++) { |
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if ((r = get(i).compareTo(other.get(i))) != 0) |
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break; |
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} |
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if (r == 0) |
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r = compare(size(), other.size()); |
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return r; |
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} |
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private static final long serialVersionUID = 0; |
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} |
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|
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/** |
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* clear removes all key-element pairs from the map |
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* Inserted elements that are subclasses of the same Comparable |
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* class are found. |
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*/ |
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public void testClear(){ |
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ConcurrentHashMap map = map5(); |
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map.clear(); |
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assertEquals(map.size(), 0); |
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public void testComparableFamily() { |
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ConcurrentHashMap<BI, Boolean> m = |
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new ConcurrentHashMap<BI, Boolean>(); |
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for (int i = 0; i < 1000; i++) { |
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assertTrue(m.put(new CI(i), true) == null); |
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} |
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for (int i = 0; i < 1000; i++) { |
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assertTrue(m.containsKey(new CI(i))); |
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assertTrue(m.containsKey(new DI(i))); |
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} |
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} |
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|
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/** |
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* contains gives the appropriate value |
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* Elements of classes with erased generic type parameters based |
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* on Comparable can be inserted and found. |
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*/ |
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public void testContains(){ |
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ConcurrentHashMap map = map5(); |
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assertTrue(map.contains("A")); |
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assertFalse(map.contains("Z")); |
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public void testGenericComparable() { |
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ConcurrentHashMap<Object, Boolean> m = |
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new ConcurrentHashMap<Object, Boolean>(); |
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for (int i = 0; i < 1000; i++) { |
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BI bi = new BI(i); |
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BS bs = new BS(String.valueOf(i)); |
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LexicographicList<BI> bis = new LexicographicList<BI>(bi); |
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LexicographicList<BS> bss = new LexicographicList<BS>(bs); |
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assertTrue(m.putIfAbsent(bis, true) == null); |
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assertTrue(m.containsKey(bis)); |
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if (m.putIfAbsent(bss, true) == null) |
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assertTrue(m.containsKey(bss)); |
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assertTrue(m.containsKey(bis)); |
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} |
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for (int i = 0; i < 1000; i++) { |
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assertTrue(m.containsKey(new ArrayList(Collections.singleton(new BI(i))))); |
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} |
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} |
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|
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/** |
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* containsKey gives the appropriate value |
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* Elements of non-comparable classes equal to those of classes |
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* with erased generic type parameters based on Comparable can be |
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* inserted and found. |
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*/ |
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public void testGenericComparable2() { |
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ConcurrentHashMap<Object, Boolean> m = |
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new ConcurrentHashMap<Object, Boolean>(); |
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for (int i = 0; i < 1000; i++) { |
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m.put(new ArrayList(Collections.singleton(new BI(i))), true); |
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} |
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|
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for (int i = 0; i < 1000; i++) { |
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LexicographicList<BI> bis = new LexicographicList<BI>(new BI(i)); |
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assertTrue(m.containsKey(bis)); |
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} |
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} |
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|
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/** |
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* clear removes all pairs |
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*/ |
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public void testContainsKey(){ |
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public void testClear() { |
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ConcurrentHashMap map = map5(); |
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assertTrue(map.containsKey(one)); |
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assertFalse(map.containsKey(new Integer(100))); |
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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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* Maps with same contents are equal |
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*/ |
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public void testEquals() { |
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ConcurrentHashMap map1 = map5(); |
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ConcurrentHashMap 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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* Identical to normal contains |
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* contains returns true for contained value |
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*/ |
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public void testContainsValue(){ |
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public void testContains() { |
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ConcurrentHashMap map = map5(); |
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assertTrue(map.contains("A")); |
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assertTrue(map.contains("A")); |
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assertFalse(map.contains("Z")); |
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} |
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|
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/** |
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* tes to verify enumeration returns an enumeration containing the correct elements |
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* containsKey returns true for contained key |
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*/ |
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public void testEnumeration(){ |
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public void testContainsKey() { |
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ConcurrentHashMap map = map5(); |
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Enumeration e = map.elements(); |
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int count = 0; |
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while(e.hasMoreElements()){ |
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count++; |
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e.nextElement(); |
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} |
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assertEquals(5, count); |
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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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* get returns the correct element at the given index |
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* containsValue returns true for held values |
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*/ |
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public void testGet(){ |
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public void testContainsValue() { |
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ConcurrentHashMap map = map5(); |
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assertEquals("A", (String)map.get(one)); |
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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 on a nonexistant key returns null |
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* enumeration returns an enumeration containing the correct |
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* elements |
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*/ |
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public void testGet2(){ |
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public void testEnumeration() { |
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ConcurrentHashMap map = map5(); |
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Enumeration e = map.elements(); |
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int count = 0; |
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while (e.hasMoreElements()) { |
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count++; |
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e.nextElement(); |
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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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* 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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ConcurrentHashMap map = map5(); |
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assertEquals("A", (String)map.get(one)); |
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ConcurrentHashMap empty = new ConcurrentHashMap(); |
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assertNull(empty.get("anything")); |
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assertNull(map.get("anything")); |
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} |
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|
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/** |
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* Simple test to verify isEmpty returns the correct value |
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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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public void testIsEmpty() { |
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ConcurrentHashMap empty = new ConcurrentHashMap(); |
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ConcurrentHashMap map = map5(); |
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assertTrue(empty.isEmpty()); |
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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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* keys returns an enumeration containing all the keys from the map |
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* keys returns an enumeration containing all the keys from the map |
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*/ |
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public void testKeys(){ |
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public void testKeys() { |
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ConcurrentHashMap map = map5(); |
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Enumeration e = map.keys(); |
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int count = 0; |
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while(e.hasMoreElements()){ |
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count++; |
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e.nextElement(); |
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} |
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assertEquals(5, count); |
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Enumeration e = map.keys(); |
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int count = 0; |
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while (e.hasMoreElements()) { |
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count++; |
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e.nextElement(); |
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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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* keySet returns a Set containing all the keys |
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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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public void testKeySet() { |
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ConcurrentHashMap 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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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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public void testValues(){ |
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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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ConcurrentHashMap 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")); |
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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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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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public void testEntrySet(){ |
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/** |
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* Values.toArray contains all values |
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*/ |
271 |
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public void testValuesToArray() { |
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ConcurrentHashMap map = map5(); |
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Set s = map.entrySet(); |
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assertEquals(5, s.size()); |
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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); |
277 |
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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")); |
281 |
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assertTrue(s.contains("E")); |
282 |
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} |
283 |
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|
284 |
> |
/** |
285 |
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* entrySet.toArray contains all entries |
286 |
> |
*/ |
287 |
> |
public void testEntrySetToArray() { |
288 |
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ConcurrentHashMap map = map5(); |
289 |
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Set s = map.entrySet(); |
290 |
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Object[] ar = s.toArray(); |
291 |
> |
assertEquals(5, ar.length); |
292 |
> |
for (int i = 0; i < 5; ++i) { |
293 |
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assertTrue(map.containsKey(((Map.Entry)(ar[i])).getKey())); |
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assertTrue(map.containsValue(((Map.Entry)(ar[i])).getValue())); |
295 |
> |
} |
296 |
> |
} |
297 |
> |
|
298 |
> |
/** |
299 |
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* values collection contains all values |
300 |
> |
*/ |
301 |
> |
public void testValues() { |
302 |
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ConcurrentHashMap map = map5(); |
303 |
> |
Collection s = map.values(); |
304 |
> |
assertEquals(5, s.size()); |
305 |
> |
assertTrue(s.contains("A")); |
306 |
> |
assertTrue(s.contains("B")); |
307 |
> |
assertTrue(s.contains("C")); |
308 |
> |
assertTrue(s.contains("D")); |
309 |
> |
assertTrue(s.contains("E")); |
310 |
> |
} |
311 |
> |
|
312 |
> |
/** |
313 |
> |
* entrySet contains all pairs |
314 |
> |
*/ |
315 |
> |
public void testEntrySet() { |
316 |
> |
ConcurrentHashMap map = map5(); |
317 |
> |
Set s = map.entrySet(); |
318 |
> |
assertEquals(5, s.size()); |
319 |
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Iterator it = s.iterator(); |
320 |
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while (it.hasNext()) { |
321 |
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Map.Entry e = (Map.Entry) it.next(); |
322 |
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assertTrue( |
322 |
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assertTrue( |
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(e.getKey().equals(one) && e.getValue().equals("A")) || |
324 |
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(e.getKey().equals(two) && e.getValue().equals("B")) || |
325 |
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(e.getKey().equals(three) && e.getValue().equals("C")) || |
329 |
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} |
330 |
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|
331 |
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/** |
332 |
< |
* putAll adds all key-value pairs from the given map |
332 |
> |
* putAll adds all key-value pairs from the given map |
333 |
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*/ |
334 |
< |
public void testPutAll(){ |
334 |
> |
public void testPutAll() { |
335 |
|
ConcurrentHashMap empty = new ConcurrentHashMap(); |
336 |
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ConcurrentHashMap map = map5(); |
337 |
< |
empty.putAll(map); |
338 |
< |
assertEquals(5, empty.size()); |
339 |
< |
assertTrue(empty.containsKey(one)); |
340 |
< |
assertTrue(empty.containsKey(two)); |
341 |
< |
assertTrue(empty.containsKey(three)); |
342 |
< |
assertTrue(empty.containsKey(four)); |
343 |
< |
assertTrue(empty.containsKey(five)); |
337 |
> |
empty.putAll(map); |
338 |
> |
assertEquals(5, empty.size()); |
339 |
> |
assertTrue(empty.containsKey(one)); |
340 |
> |
assertTrue(empty.containsKey(two)); |
341 |
> |
assertTrue(empty.containsKey(three)); |
342 |
> |
assertTrue(empty.containsKey(four)); |
343 |
> |
assertTrue(empty.containsKey(five)); |
344 |
|
} |
345 |
|
|
346 |
|
/** |
347 |
< |
* putIfAbsent works when the given key is not present |
347 |
> |
* putIfAbsent works when the given key is not present |
348 |
|
*/ |
349 |
< |
public void testPutIfAbsent(){ |
349 |
> |
public void testPutIfAbsent() { |
350 |
|
ConcurrentHashMap map = map5(); |
351 |
< |
map.putIfAbsent(new Integer(6), "Z"); |
352 |
< |
assertTrue(map.containsKey(new Integer(6))); |
351 |
> |
map.putIfAbsent(six, "Z"); |
352 |
> |
assertTrue(map.containsKey(six)); |
353 |
|
} |
354 |
|
|
355 |
|
/** |
356 |
< |
* putIfAbsent does not add the pair if the key is already present |
356 |
> |
* putIfAbsent does not add the pair if the key is already present |
357 |
|
*/ |
358 |
< |
public void testPutIfAbsent2(){ |
358 |
> |
public void testPutIfAbsent2() { |
359 |
|
ConcurrentHashMap map = map5(); |
360 |
|
assertEquals("A", map.putIfAbsent(one, "Z")); |
361 |
|
} |
362 |
|
|
363 |
|
/** |
364 |
< |
* remove removes the correct key-value pair from the map |
364 |
> |
* replace fails when the given key is not present |
365 |
|
*/ |
366 |
< |
public void testRemove(){ |
366 |
> |
public void testReplace() { |
367 |
|
ConcurrentHashMap map = map5(); |
368 |
< |
map.remove(five); |
369 |
< |
assertEquals(4, map.size()); |
205 |
< |
assertFalse(map.containsKey(five)); |
368 |
> |
assertNull(map.replace(six, "Z")); |
369 |
> |
assertFalse(map.containsKey(six)); |
370 |
|
} |
371 |
|
|
372 |
< |
public void testRemove2(){ |
372 |
> |
/** |
373 |
> |
* replace succeeds if the key is already present |
374 |
> |
*/ |
375 |
> |
public void testReplace2() { |
376 |
|
ConcurrentHashMap map = map5(); |
377 |
< |
map.remove(five, "E"); |
378 |
< |
assertEquals(4, map.size()); |
379 |
< |
assertFalse(map.containsKey(five)); |
213 |
< |
map.remove(four, "A"); |
214 |
< |
assertEquals(4, map.size()); |
215 |
< |
assertTrue(map.containsKey(four)); |
377 |
> |
assertNotNull(map.replace(one, "Z")); |
378 |
> |
assertEquals("Z", map.get(one)); |
379 |
> |
} |
380 |
|
|
381 |
+ |
/** |
382 |
+ |
* replace value fails when the given key not mapped to expected value |
383 |
+ |
*/ |
384 |
+ |
public void testReplaceValue() { |
385 |
+ |
ConcurrentHashMap map = map5(); |
386 |
+ |
assertEquals("A", map.get(one)); |
387 |
+ |
assertFalse(map.replace(one, "Z", "Z")); |
388 |
+ |
assertEquals("A", map.get(one)); |
389 |
+ |
} |
390 |
+ |
|
391 |
+ |
/** |
392 |
+ |
* replace value succeeds when the given key mapped to expected value |
393 |
+ |
*/ |
394 |
+ |
public void testReplaceValue2() { |
395 |
+ |
ConcurrentHashMap map = map5(); |
396 |
+ |
assertEquals("A", map.get(one)); |
397 |
+ |
assertTrue(map.replace(one, "A", "Z")); |
398 |
+ |
assertEquals("Z", map.get(one)); |
399 |
+ |
} |
400 |
+ |
|
401 |
+ |
/** |
402 |
+ |
* remove removes the correct key-value pair from the map |
403 |
+ |
*/ |
404 |
+ |
public void testRemove() { |
405 |
+ |
ConcurrentHashMap map = map5(); |
406 |
+ |
map.remove(five); |
407 |
+ |
assertEquals(4, map.size()); |
408 |
+ |
assertFalse(map.containsKey(five)); |
409 |
+ |
} |
410 |
+ |
|
411 |
+ |
/** |
412 |
+ |
* remove(key,value) removes only if pair present |
413 |
+ |
*/ |
414 |
+ |
public void testRemove2() { |
415 |
+ |
ConcurrentHashMap map = map5(); |
416 |
+ |
map.remove(five, "E"); |
417 |
+ |
assertEquals(4, map.size()); |
418 |
+ |
assertFalse(map.containsKey(five)); |
419 |
+ |
map.remove(four, "A"); |
420 |
+ |
assertEquals(4, map.size()); |
421 |
+ |
assertTrue(map.containsKey(four)); |
422 |
|
} |
423 |
|
|
424 |
|
/** |
425 |
< |
* size returns the correct values |
425 |
> |
* size returns the correct values |
426 |
|
*/ |
427 |
< |
public void testSize(){ |
427 |
> |
public void testSize() { |
428 |
|
ConcurrentHashMap map = map5(); |
429 |
|
ConcurrentHashMap empty = new ConcurrentHashMap(); |
430 |
< |
assertEquals(0, empty.size()); |
431 |
< |
assertEquals(5, map.size()); |
430 |
> |
assertEquals(0, empty.size()); |
431 |
> |
assertEquals(5, map.size()); |
432 |
|
} |
433 |
|
|
434 |
< |
public void testToString(){ |
434 |
> |
/** |
435 |
> |
* toString contains toString of elements |
436 |
> |
*/ |
437 |
> |
public void testToString() { |
438 |
|
ConcurrentHashMap map = map5(); |
439 |
|
String s = map.toString(); |
440 |
|
for (int i = 1; i <= 5; ++i) { |
441 |
< |
assertTrue(s.indexOf(String.valueOf(i)) >= 0); |
441 |
> |
assertTrue(s.contains(String.valueOf(i))); |
442 |
|
} |
443 |
< |
} |
443 |
> |
} |
444 |
|
|
445 |
|
// Exception tests |
446 |
< |
|
447 |
< |
public void testConstructor1(){ |
448 |
< |
try{ |
446 |
> |
|
447 |
> |
/** |
448 |
> |
* Cannot create with negative capacity |
449 |
> |
*/ |
450 |
> |
public void testConstructor1() { |
451 |
> |
try { |
452 |
|
new ConcurrentHashMap(-1,0,1); |
453 |
< |
fail("ConcurrentHashMap(int, float, int) should throw Illegal Argument Exception"); |
454 |
< |
}catch(IllegalArgumentException e){} |
453 |
> |
shouldThrow(); |
454 |
> |
} catch (IllegalArgumentException success) {} |
455 |
|
} |
456 |
|
|
457 |
< |
public void testConstructor2(){ |
458 |
< |
try{ |
457 |
> |
/** |
458 |
> |
* Cannot create with negative concurrency level |
459 |
> |
*/ |
460 |
> |
public void testConstructor2() { |
461 |
> |
try { |
462 |
|
new ConcurrentHashMap(1,0,-1); |
463 |
< |
fail("ConcurrentHashMap(int, float, int) should throw Illegal Argument Exception"); |
464 |
< |
}catch(IllegalArgumentException e){} |
463 |
> |
shouldThrow(); |
464 |
> |
} catch (IllegalArgumentException success) {} |
465 |
|
} |
466 |
|
|
467 |
< |
public void testConstructor3(){ |
468 |
< |
try{ |
467 |
> |
/** |
468 |
> |
* Cannot create with only negative capacity |
469 |
> |
*/ |
470 |
> |
public void testConstructor3() { |
471 |
> |
try { |
472 |
|
new ConcurrentHashMap(-1); |
473 |
< |
fail("ConcurrentHashMap(int) should throw Illegal Argument Exception"); |
474 |
< |
}catch(IllegalArgumentException e){} |
473 |
> |
shouldThrow(); |
474 |
> |
} catch (IllegalArgumentException success) {} |
475 |
|
} |
476 |
|
|
477 |
< |
public void testGet_NullPointerException(){ |
478 |
< |
try{ |
477 |
> |
/** |
478 |
> |
* get(null) throws NPE |
479 |
> |
*/ |
480 |
> |
public void testGet_NullPointerException() { |
481 |
> |
try { |
482 |
|
ConcurrentHashMap c = new ConcurrentHashMap(5); |
483 |
|
c.get(null); |
484 |
< |
fail("ConcurrentHashMap - Object get(Object) should throw Null Pointer exception"); |
485 |
< |
}catch(NullPointerException e){} |
484 |
> |
shouldThrow(); |
485 |
> |
} catch (NullPointerException success) {} |
486 |
|
} |
487 |
|
|
488 |
< |
public void testContainsKey_NullPointerException(){ |
489 |
< |
try{ |
488 |
> |
/** |
489 |
> |
* containsKey(null) throws NPE |
490 |
> |
*/ |
491 |
> |
public void testContainsKey_NullPointerException() { |
492 |
> |
try { |
493 |
|
ConcurrentHashMap c = new ConcurrentHashMap(5); |
494 |
|
c.containsKey(null); |
495 |
< |
fail("ConcurrenthashMap - boolean containsKey(Object) should throw Null Pointer exception"); |
496 |
< |
}catch(NullPointerException e){} |
495 |
> |
shouldThrow(); |
496 |
> |
} catch (NullPointerException success) {} |
497 |
|
} |
498 |
|
|
499 |
< |
public void testContainsValue_NullPointerException(){ |
500 |
< |
try{ |
499 |
> |
/** |
500 |
> |
* containsValue(null) throws NPE |
501 |
> |
*/ |
502 |
> |
public void testContainsValue_NullPointerException() { |
503 |
> |
try { |
504 |
|
ConcurrentHashMap c = new ConcurrentHashMap(5); |
505 |
|
c.containsValue(null); |
506 |
< |
fail("ConcurrentHashMap - boolean containsValue(Object) should throw Null Pointer exception"); |
507 |
< |
}catch(NullPointerException e){} |
506 |
> |
shouldThrow(); |
507 |
> |
} catch (NullPointerException success) {} |
508 |
|
} |
509 |
|
|
510 |
< |
public void testContains_NullPointerException(){ |
511 |
< |
try{ |
510 |
> |
/** |
511 |
> |
* contains(null) throws NPE |
512 |
> |
*/ |
513 |
> |
public void testContains_NullPointerException() { |
514 |
> |
try { |
515 |
|
ConcurrentHashMap c = new ConcurrentHashMap(5); |
516 |
|
c.contains(null); |
517 |
< |
fail("ConcurrentHashMap - boolean contains(Object) should throw Null Pointer exception"); |
518 |
< |
}catch(NullPointerException e){} |
517 |
> |
shouldThrow(); |
518 |
> |
} catch (NullPointerException success) {} |
519 |
|
} |
520 |
|
|
521 |
< |
public void testPut1_NullPointerException(){ |
522 |
< |
try{ |
521 |
> |
/** |
522 |
> |
* put(null,x) throws NPE |
523 |
> |
*/ |
524 |
> |
public void testPut1_NullPointerException() { |
525 |
> |
try { |
526 |
|
ConcurrentHashMap c = new ConcurrentHashMap(5); |
527 |
|
c.put(null, "whatever"); |
528 |
< |
fail("ConcurrentHashMap - Object put(Object, Object) should throw Null Pointer exception"); |
529 |
< |
}catch(NullPointerException e){} |
528 |
> |
shouldThrow(); |
529 |
> |
} catch (NullPointerException success) {} |
530 |
|
} |
531 |
|
|
532 |
< |
public void testPut2_NullPointerException(){ |
533 |
< |
try{ |
532 |
> |
/** |
533 |
> |
* put(x, null) throws NPE |
534 |
> |
*/ |
535 |
> |
public void testPut2_NullPointerException() { |
536 |
> |
try { |
537 |
|
ConcurrentHashMap c = new ConcurrentHashMap(5); |
538 |
|
c.put("whatever", null); |
539 |
< |
fail("ConcurrentHashMap - Object put(Object, Object) should throw Null Pointer exception"); |
540 |
< |
}catch(NullPointerException e){} |
539 |
> |
shouldThrow(); |
540 |
> |
} catch (NullPointerException success) {} |
541 |
|
} |
542 |
|
|
543 |
< |
public void testPutIfAbsent1_NullPointerException(){ |
544 |
< |
try{ |
543 |
> |
/** |
544 |
> |
* putIfAbsent(null, x) throws NPE |
545 |
> |
*/ |
546 |
> |
public void testPutIfAbsent1_NullPointerException() { |
547 |
> |
try { |
548 |
|
ConcurrentHashMap c = new ConcurrentHashMap(5); |
549 |
|
c.putIfAbsent(null, "whatever"); |
550 |
< |
fail("ConcurrentHashMap - Object putIfAbsent(Object, Object) should throw Null Pointer exception"); |
551 |
< |
}catch(NullPointerException e){} |
550 |
> |
shouldThrow(); |
551 |
> |
} catch (NullPointerException success) {} |
552 |
> |
} |
553 |
> |
|
554 |
> |
/** |
555 |
> |
* replace(null, x) throws NPE |
556 |
> |
*/ |
557 |
> |
public void testReplace_NullPointerException() { |
558 |
> |
try { |
559 |
> |
ConcurrentHashMap c = new ConcurrentHashMap(5); |
560 |
> |
c.replace(null, "whatever"); |
561 |
> |
shouldThrow(); |
562 |
> |
} catch (NullPointerException success) {} |
563 |
|
} |
564 |
|
|
565 |
< |
public void testPutIfAbsent2_NullPointerException(){ |
566 |
< |
try{ |
565 |
> |
/** |
566 |
> |
* replace(null, x, y) throws NPE |
567 |
> |
*/ |
568 |
> |
public void testReplaceValue_NullPointerException() { |
569 |
> |
try { |
570 |
> |
ConcurrentHashMap c = new ConcurrentHashMap(5); |
571 |
> |
c.replace(null, one, "whatever"); |
572 |
> |
shouldThrow(); |
573 |
> |
} catch (NullPointerException success) {} |
574 |
> |
} |
575 |
> |
|
576 |
> |
/** |
577 |
> |
* putIfAbsent(x, null) throws NPE |
578 |
> |
*/ |
579 |
> |
public void testPutIfAbsent2_NullPointerException() { |
580 |
> |
try { |
581 |
|
ConcurrentHashMap c = new ConcurrentHashMap(5); |
582 |
|
c.putIfAbsent("whatever", null); |
583 |
< |
fail("COncurrentHashMap - Object putIfAbsent(Object, Object) should throw Null Pointer exception"); |
584 |
< |
}catch(NullPointerException e){} |
583 |
> |
shouldThrow(); |
584 |
> |
} catch (NullPointerException success) {} |
585 |
|
} |
586 |
|
|
587 |
+ |
/** |
588 |
+ |
* replace(x, null) throws NPE |
589 |
+ |
*/ |
590 |
+ |
public void testReplace2_NullPointerException() { |
591 |
+ |
try { |
592 |
+ |
ConcurrentHashMap c = new ConcurrentHashMap(5); |
593 |
+ |
c.replace("whatever", null); |
594 |
+ |
shouldThrow(); |
595 |
+ |
} catch (NullPointerException success) {} |
596 |
+ |
} |
597 |
|
|
598 |
< |
public void testRemove1_NullPointerException(){ |
599 |
< |
try{ |
598 |
> |
/** |
599 |
> |
* replace(x, null, y) throws NPE |
600 |
> |
*/ |
601 |
> |
public void testReplaceValue2_NullPointerException() { |
602 |
> |
try { |
603 |
> |
ConcurrentHashMap c = new ConcurrentHashMap(5); |
604 |
> |
c.replace("whatever", null, "A"); |
605 |
> |
shouldThrow(); |
606 |
> |
} catch (NullPointerException success) {} |
607 |
> |
} |
608 |
> |
|
609 |
> |
/** |
610 |
> |
* replace(x, y, null) throws NPE |
611 |
> |
*/ |
612 |
> |
public void testReplaceValue3_NullPointerException() { |
613 |
> |
try { |
614 |
> |
ConcurrentHashMap c = new ConcurrentHashMap(5); |
615 |
> |
c.replace("whatever", one, null); |
616 |
> |
shouldThrow(); |
617 |
> |
} catch (NullPointerException success) {} |
618 |
> |
} |
619 |
> |
|
620 |
> |
/** |
621 |
> |
* remove(null) throws NPE |
622 |
> |
*/ |
623 |
> |
public void testRemove1_NullPointerException() { |
624 |
> |
try { |
625 |
|
ConcurrentHashMap c = new ConcurrentHashMap(5); |
626 |
|
c.put("sadsdf", "asdads"); |
627 |
|
c.remove(null); |
628 |
< |
fail("ConcurrentHashMap - Object remove(Object) should throw Null pointer exceptione"); |
629 |
< |
}catch(NullPointerException e){} |
628 |
> |
shouldThrow(); |
629 |
> |
} catch (NullPointerException success) {} |
630 |
|
} |
631 |
|
|
632 |
< |
public void testRemove2_NullPointerException(){ |
633 |
< |
try{ |
632 |
> |
/** |
633 |
> |
* remove(null, x) throws NPE |
634 |
> |
*/ |
635 |
> |
public void testRemove2_NullPointerException() { |
636 |
> |
try { |
637 |
|
ConcurrentHashMap c = new ConcurrentHashMap(5); |
638 |
|
c.put("sadsdf", "asdads"); |
639 |
|
c.remove(null, "whatever"); |
640 |
< |
fail("ConcurrentHashMap - Object remove(Object, Object) should throw Null pointer exceptione"); |
641 |
< |
}catch(NullPointerException e){} |
640 |
> |
shouldThrow(); |
641 |
> |
} catch (NullPointerException success) {} |
642 |
> |
} |
643 |
> |
|
644 |
> |
/** |
645 |
> |
* remove(x, null) returns false |
646 |
> |
*/ |
647 |
> |
public void testRemove3() { |
648 |
> |
ConcurrentHashMap c = new ConcurrentHashMap(5); |
649 |
> |
c.put("sadsdf", "asdads"); |
650 |
> |
assertFalse(c.remove("sadsdf", null)); |
651 |
|
} |
652 |
|
|
653 |
< |
public void testSerialization() { |
654 |
< |
ConcurrentHashMap q = map5(); |
653 |
> |
/** |
654 |
> |
* A deserialized map equals original |
655 |
> |
*/ |
656 |
> |
public void testSerialization() throws Exception { |
657 |
> |
Map x = map5(); |
658 |
> |
Map y = serialClone(x); |
659 |
|
|
660 |
< |
try { |
661 |
< |
ByteArrayOutputStream bout = new ByteArrayOutputStream(10000); |
662 |
< |
ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout)); |
663 |
< |
out.writeObject(q); |
664 |
< |
out.close(); |
660 |
> |
assertNotSame(x, y); |
661 |
> |
assertEquals(x.size(), y.size()); |
662 |
> |
assertEquals(x, y); |
663 |
> |
assertEquals(y, x); |
664 |
> |
} |
665 |
|
|
666 |
< |
ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray()); |
667 |
< |
ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin)); |
668 |
< |
ConcurrentHashMap r = (ConcurrentHashMap)in.readObject(); |
669 |
< |
assertEquals(q.size(), r.size()); |
670 |
< |
assertTrue(q.equals(r)); |
671 |
< |
assertTrue(r.equals(q)); |
672 |
< |
} catch(Exception e){ |
673 |
< |
e.printStackTrace(); |
674 |
< |
fail("unexpected exception"); |
666 |
> |
/** |
667 |
> |
* SetValue of an EntrySet entry sets value in the map. |
668 |
> |
*/ |
669 |
> |
public void testSetValueWriteThrough() { |
670 |
> |
// Adapted from a bug report by Eric Zoerner |
671 |
> |
ConcurrentHashMap map = new ConcurrentHashMap(2, 5.0f, 1); |
672 |
> |
assertTrue(map.isEmpty()); |
673 |
> |
for (int i = 0; i < 20; i++) |
674 |
> |
map.put(new Integer(i), new Integer(i)); |
675 |
> |
assertFalse(map.isEmpty()); |
676 |
> |
Map.Entry entry1 = (Map.Entry)map.entrySet().iterator().next(); |
677 |
> |
// Unless it happens to be first (in which case remainder of |
678 |
> |
// test is skipped), remove a possibly-colliding key from map |
679 |
> |
// which, under some implementations, may cause entry1 to be |
680 |
> |
// cloned in map |
681 |
> |
if (!entry1.getKey().equals(new Integer(16))) { |
682 |
> |
map.remove(new Integer(16)); |
683 |
> |
entry1.setValue("XYZ"); |
684 |
> |
assertTrue(map.containsValue("XYZ")); // fails if write-through broken |
685 |
|
} |
686 |
|
} |
687 |
|
|
364 |
– |
|
688 |
|
} |