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/* |
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* Written by Doug Lea with assistance from members of JCP JSR-166 |
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* Expert Group and released to the public domain, as explained at |
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* http://creativecommons.org/licenses/publicdomain |
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* Other contributors include Andrew Wright, Jeffrey Hayes, |
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* Pat Fisher, Mike Judd. |
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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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/** |
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* Create a map from Integers 1-5 to Strings "A"-"E". |
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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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private static ConcurrentHashMap<Integer, String> map5() { |
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ConcurrentHashMap map = new ConcurrentHashMap<Integer, String>(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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static class CollidingObject { |
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final String value; |
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CollidingObject(final String value) { this.value = value; } |
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public int hashCode() { return this.value.hashCode() & 1; } |
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public boolean equals(final Object obj) { |
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return (obj instanceof CollidingObject) && ((CollidingObject)obj).value.equals(value); |
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} |
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} |
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|
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static class ComparableCollidingObject extends CollidingObject implements Comparable<ComparableCollidingObject> { |
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ComparableCollidingObject(final String value) { super(value); } |
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public int compareTo(final ComparableCollidingObject o) { |
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return value.compareTo(o.value); |
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} |
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} |
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|
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/** |
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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 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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* 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 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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* 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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* Mixtures of instances of comparable and non-comparable classes |
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* can be inserted and found. |
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*/ |
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public void testMixedComparable() { |
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int size = 10000; |
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ConcurrentHashMap<Object, Object> map = |
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new ConcurrentHashMap<Object, Object>(); |
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Random rng = new Random(1370014958369218000L); |
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for (int i = 0; i < size; i++) { |
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Object x; |
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switch (rng.nextInt(4)) { |
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case 0: |
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x = new Object(); |
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break; |
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case 1: |
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x = new CollidingObject(Integer.toString(i)); |
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break; |
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default: |
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x = new ComparableCollidingObject(Integer.toString(i)); |
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} |
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assertNull(map.put(x, x)); |
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} |
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int count = 0; |
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for (Object k : map.keySet()) { |
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assertEquals(map.get(k), k); |
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++count; |
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} |
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assertEquals(count, size); |
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assertEquals(map.size(), size); |
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for (Object k : map.keySet()) { |
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assertEquals(map.put(k, k), k); |
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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 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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map.clear(); |
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assertEquals(0, map.size()); |
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} |
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/** |
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* Maps with same contents are equal |
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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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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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/** |
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* hashCode() equals sum of each key.hashCode ^ value.hashCode |
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*/ |
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public void testHashCode() { |
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ConcurrentHashMap<Integer,String> map = map5(); |
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int sum = 0; |
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for (Map.Entry<Integer,String> e : map.entrySet()) |
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sum += e.getKey().hashCode() ^ e.getValue().hashCode(); |
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assertEquals(sum, map.hashCode()); |
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} |
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|
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/** |
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* contains returns true for contained value |
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* contains returns true for contained value |
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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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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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/** |
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* containsKey returns true for contained key |
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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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ConcurrentHashMap map = map5(); |
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assertTrue(map.containsKey(one)); |
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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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/** |
246 |
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* containsValue returns true for held values |
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* containsValue returns true for held values |
247 |
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*/ |
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public void testContainsValue() { |
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ConcurrentHashMap map = map5(); |
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assertTrue(map.containsValue("A")); |
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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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/** |
255 |
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* enumeration returns an enumeration containing the correct |
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* elements |
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* enumeration returns an enumeration containing the correct |
256 |
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* elements |
257 |
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*/ |
258 |
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public void testEnumeration() { |
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ConcurrentHashMap map = map5(); |
260 |
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Enumeration e = map.elements(); |
261 |
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int count = 0; |
262 |
< |
while(e.hasMoreElements()){ |
263 |
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count++; |
264 |
< |
e.nextElement(); |
265 |
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} |
266 |
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assertEquals(5, count); |
260 |
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Enumeration e = map.elements(); |
261 |
> |
int count = 0; |
262 |
> |
while (e.hasMoreElements()) { |
263 |
> |
count++; |
264 |
> |
e.nextElement(); |
265 |
> |
} |
266 |
> |
assertEquals(5, count); |
267 |
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} |
268 |
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|
269 |
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/** |
270 |
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* get returns the correct element at the given key, |
271 |
< |
* or null if not present |
270 |
> |
* get returns the correct element at the given key, |
271 |
> |
* or null if not present |
272 |
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*/ |
273 |
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public void testGet() { |
274 |
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ConcurrentHashMap map = map5(); |
275 |
< |
assertEquals("A", (String)map.get(one)); |
275 |
> |
assertEquals("A", (String)map.get(one)); |
276 |
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ConcurrentHashMap empty = new ConcurrentHashMap(); |
277 |
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assertNull(map.get("anything")); |
278 |
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} |
279 |
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|
280 |
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/** |
281 |
< |
* isEmpty is true of empty map and false for non-empty |
281 |
> |
* isEmpty is true of empty map and false for non-empty |
282 |
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*/ |
283 |
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public void testIsEmpty() { |
284 |
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ConcurrentHashMap empty = new ConcurrentHashMap(); |
285 |
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ConcurrentHashMap map = map5(); |
286 |
< |
assertTrue(empty.isEmpty()); |
286 |
> |
assertTrue(empty.isEmpty()); |
287 |
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assertFalse(map.isEmpty()); |
288 |
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} |
289 |
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|
290 |
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/** |
291 |
< |
* keys returns an enumeration containing all the keys from the map |
291 |
> |
* keys returns an enumeration containing all the keys from the map |
292 |
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*/ |
293 |
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public void testKeys() { |
294 |
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ConcurrentHashMap map = map5(); |
295 |
< |
Enumeration e = map.keys(); |
296 |
< |
int count = 0; |
297 |
< |
while(e.hasMoreElements()){ |
298 |
< |
count++; |
299 |
< |
e.nextElement(); |
300 |
< |
} |
301 |
< |
assertEquals(5, count); |
295 |
> |
Enumeration e = map.keys(); |
296 |
> |
int count = 0; |
297 |
> |
while (e.hasMoreElements()) { |
298 |
> |
count++; |
299 |
> |
e.nextElement(); |
300 |
> |
} |
301 |
> |
assertEquals(5, count); |
302 |
|
} |
303 |
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|
304 |
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/** |
305 |
< |
* keySet returns a Set containing all the keys |
305 |
> |
* keySet returns a Set containing all the keys |
306 |
|
*/ |
307 |
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public void testKeySet() { |
308 |
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ConcurrentHashMap map = map5(); |
309 |
< |
Set s = map.keySet(); |
310 |
< |
assertEquals(5, s.size()); |
311 |
< |
assertTrue(s.contains(one)); |
312 |
< |
assertTrue(s.contains(two)); |
313 |
< |
assertTrue(s.contains(three)); |
314 |
< |
assertTrue(s.contains(four)); |
315 |
< |
assertTrue(s.contains(five)); |
309 |
> |
Set s = map.keySet(); |
310 |
> |
assertEquals(5, s.size()); |
311 |
> |
assertTrue(s.contains(one)); |
312 |
> |
assertTrue(s.contains(two)); |
313 |
> |
assertTrue(s.contains(three)); |
314 |
> |
assertTrue(s.contains(four)); |
315 |
> |
assertTrue(s.contains(five)); |
316 |
|
} |
317 |
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|
318 |
|
/** |
319 |
< |
* keySet.toArray returns contains all keys |
319 |
> |
* keySet.toArray returns contains all keys |
320 |
|
*/ |
321 |
|
public void testKeySetToArray() { |
322 |
|
ConcurrentHashMap map = map5(); |
323 |
< |
Set s = map.keySet(); |
323 |
> |
Set s = map.keySet(); |
324 |
|
Object[] ar = s.toArray(); |
325 |
|
assertTrue(s.containsAll(Arrays.asList(ar))); |
326 |
< |
assertEquals(5, ar.length); |
326 |
> |
assertEquals(5, ar.length); |
327 |
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ar[0] = m10; |
328 |
|
assertFalse(s.containsAll(Arrays.asList(ar))); |
329 |
|
} |
330 |
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|
331 |
|
/** |
332 |
< |
* Values.toArray contains all values |
332 |
> |
* Values.toArray contains all values |
333 |
|
*/ |
334 |
|
public void testValuesToArray() { |
335 |
|
ConcurrentHashMap map = map5(); |
336 |
< |
Collection v = map.values(); |
336 |
> |
Collection v = map.values(); |
337 |
|
Object[] ar = v.toArray(); |
338 |
|
ArrayList s = new ArrayList(Arrays.asList(ar)); |
339 |
< |
assertEquals(5, ar.length); |
340 |
< |
assertTrue(s.contains("A")); |
341 |
< |
assertTrue(s.contains("B")); |
342 |
< |
assertTrue(s.contains("C")); |
343 |
< |
assertTrue(s.contains("D")); |
344 |
< |
assertTrue(s.contains("E")); |
339 |
> |
assertEquals(5, ar.length); |
340 |
> |
assertTrue(s.contains("A")); |
341 |
> |
assertTrue(s.contains("B")); |
342 |
> |
assertTrue(s.contains("C")); |
343 |
> |
assertTrue(s.contains("D")); |
344 |
> |
assertTrue(s.contains("E")); |
345 |
|
} |
346 |
|
|
347 |
|
/** |
348 |
< |
* entrySet.toArray contains all entries |
348 |
> |
* entrySet.toArray contains all entries |
349 |
|
*/ |
350 |
|
public void testEntrySetToArray() { |
351 |
|
ConcurrentHashMap map = map5(); |
352 |
< |
Set s = map.entrySet(); |
352 |
> |
Set s = map.entrySet(); |
353 |
|
Object[] ar = s.toArray(); |
354 |
|
assertEquals(5, ar.length); |
355 |
|
for (int i = 0; i < 5; ++i) { |
363 |
|
*/ |
364 |
|
public void testValues() { |
365 |
|
ConcurrentHashMap map = map5(); |
366 |
< |
Collection s = map.values(); |
367 |
< |
assertEquals(5, s.size()); |
368 |
< |
assertTrue(s.contains("A")); |
369 |
< |
assertTrue(s.contains("B")); |
370 |
< |
assertTrue(s.contains("C")); |
371 |
< |
assertTrue(s.contains("D")); |
372 |
< |
assertTrue(s.contains("E")); |
366 |
> |
Collection s = map.values(); |
367 |
> |
assertEquals(5, s.size()); |
368 |
> |
assertTrue(s.contains("A")); |
369 |
> |
assertTrue(s.contains("B")); |
370 |
> |
assertTrue(s.contains("C")); |
371 |
> |
assertTrue(s.contains("D")); |
372 |
> |
assertTrue(s.contains("E")); |
373 |
|
} |
374 |
|
|
375 |
|
/** |
377 |
|
*/ |
378 |
|
public void testEntrySet() { |
379 |
|
ConcurrentHashMap map = map5(); |
380 |
< |
Set s = map.entrySet(); |
381 |
< |
assertEquals(5, s.size()); |
380 |
> |
Set s = map.entrySet(); |
381 |
> |
assertEquals(5, s.size()); |
382 |
|
Iterator it = s.iterator(); |
383 |
|
while (it.hasNext()) { |
384 |
|
Map.Entry e = (Map.Entry) it.next(); |
385 |
< |
assertTrue( |
385 |
> |
assertTrue( |
386 |
|
(e.getKey().equals(one) && e.getValue().equals("A")) || |
387 |
|
(e.getKey().equals(two) && e.getValue().equals("B")) || |
388 |
|
(e.getKey().equals(three) && e.getValue().equals("C")) || |
392 |
|
} |
393 |
|
|
394 |
|
/** |
395 |
< |
* putAll adds all key-value pairs from the given map |
395 |
> |
* putAll adds all key-value pairs from the given map |
396 |
|
*/ |
397 |
|
public void testPutAll() { |
398 |
|
ConcurrentHashMap empty = new ConcurrentHashMap(); |
399 |
|
ConcurrentHashMap map = map5(); |
400 |
< |
empty.putAll(map); |
401 |
< |
assertEquals(5, empty.size()); |
402 |
< |
assertTrue(empty.containsKey(one)); |
403 |
< |
assertTrue(empty.containsKey(two)); |
404 |
< |
assertTrue(empty.containsKey(three)); |
405 |
< |
assertTrue(empty.containsKey(four)); |
406 |
< |
assertTrue(empty.containsKey(five)); |
400 |
> |
empty.putAll(map); |
401 |
> |
assertEquals(5, empty.size()); |
402 |
> |
assertTrue(empty.containsKey(one)); |
403 |
> |
assertTrue(empty.containsKey(two)); |
404 |
> |
assertTrue(empty.containsKey(three)); |
405 |
> |
assertTrue(empty.containsKey(four)); |
406 |
> |
assertTrue(empty.containsKey(five)); |
407 |
|
} |
408 |
|
|
409 |
|
/** |
410 |
< |
* putIfAbsent works when the given key is not present |
410 |
> |
* putIfAbsent works when the given key is not present |
411 |
|
*/ |
412 |
|
public void testPutIfAbsent() { |
413 |
|
ConcurrentHashMap map = map5(); |
414 |
< |
map.putIfAbsent(six, "Z"); |
414 |
> |
map.putIfAbsent(six, "Z"); |
415 |
|
assertTrue(map.containsKey(six)); |
416 |
|
} |
417 |
|
|
418 |
|
/** |
419 |
< |
* putIfAbsent does not add the pair if the key is already present |
419 |
> |
* putIfAbsent does not add the pair if the key is already present |
420 |
|
*/ |
421 |
|
public void testPutIfAbsent2() { |
422 |
|
ConcurrentHashMap map = map5(); |
424 |
|
} |
425 |
|
|
426 |
|
/** |
427 |
< |
* replace fails when the given key is not present |
427 |
> |
* replace fails when the given key is not present |
428 |
|
*/ |
429 |
|
public void testReplace() { |
430 |
|
ConcurrentHashMap map = map5(); |
431 |
< |
assertNull(map.replace(six, "Z")); |
431 |
> |
assertNull(map.replace(six, "Z")); |
432 |
|
assertFalse(map.containsKey(six)); |
433 |
|
} |
434 |
|
|
435 |
|
/** |
436 |
< |
* replace succeeds if the key is already present |
436 |
> |
* replace succeeds if the key is already present |
437 |
|
*/ |
438 |
|
public void testReplace2() { |
439 |
|
ConcurrentHashMap map = map5(); |
441 |
|
assertEquals("Z", map.get(one)); |
442 |
|
} |
443 |
|
|
278 |
– |
|
444 |
|
/** |
445 |
|
* replace value fails when the given key not mapped to expected value |
446 |
|
*/ |
447 |
|
public void testReplaceValue() { |
448 |
|
ConcurrentHashMap map = map5(); |
449 |
|
assertEquals("A", map.get(one)); |
450 |
< |
assertFalse(map.replace(one, "Z", "Z")); |
450 |
> |
assertFalse(map.replace(one, "Z", "Z")); |
451 |
|
assertEquals("A", map.get(one)); |
452 |
|
} |
453 |
|
|
457 |
|
public void testReplaceValue2() { |
458 |
|
ConcurrentHashMap map = map5(); |
459 |
|
assertEquals("A", map.get(one)); |
460 |
< |
assertTrue(map.replace(one, "A", "Z")); |
460 |
> |
assertTrue(map.replace(one, "A", "Z")); |
461 |
|
assertEquals("Z", map.get(one)); |
462 |
|
} |
463 |
|
|
299 |
– |
|
464 |
|
/** |
465 |
< |
* remove removes the correct key-value pair from the map |
465 |
> |
* remove removes the correct key-value pair from the map |
466 |
|
*/ |
467 |
|
public void testRemove() { |
468 |
|
ConcurrentHashMap map = map5(); |
469 |
< |
map.remove(five); |
470 |
< |
assertEquals(4, map.size()); |
471 |
< |
assertFalse(map.containsKey(five)); |
469 |
> |
map.remove(five); |
470 |
> |
assertEquals(4, map.size()); |
471 |
> |
assertFalse(map.containsKey(five)); |
472 |
|
} |
473 |
|
|
474 |
|
/** |
476 |
|
*/ |
477 |
|
public void testRemove2() { |
478 |
|
ConcurrentHashMap map = map5(); |
479 |
< |
map.remove(five, "E"); |
480 |
< |
assertEquals(4, map.size()); |
481 |
< |
assertFalse(map.containsKey(five)); |
482 |
< |
map.remove(four, "A"); |
483 |
< |
assertEquals(4, map.size()); |
484 |
< |
assertTrue(map.containsKey(four)); |
321 |
< |
|
479 |
> |
map.remove(five, "E"); |
480 |
> |
assertEquals(4, map.size()); |
481 |
> |
assertFalse(map.containsKey(five)); |
482 |
> |
map.remove(four, "A"); |
483 |
> |
assertEquals(4, map.size()); |
484 |
> |
assertTrue(map.containsKey(four)); |
485 |
|
} |
486 |
|
|
487 |
|
/** |
488 |
< |
* size returns the correct values |
488 |
> |
* size returns the correct values |
489 |
|
*/ |
490 |
|
public void testSize() { |
491 |
|
ConcurrentHashMap map = map5(); |
492 |
|
ConcurrentHashMap empty = new ConcurrentHashMap(); |
493 |
< |
assertEquals(0, empty.size()); |
494 |
< |
assertEquals(5, map.size()); |
493 |
> |
assertEquals(0, empty.size()); |
494 |
> |
assertEquals(5, map.size()); |
495 |
|
} |
496 |
|
|
497 |
|
/** |
501 |
|
ConcurrentHashMap map = map5(); |
502 |
|
String s = map.toString(); |
503 |
|
for (int i = 1; i <= 5; ++i) { |
504 |
< |
assertTrue(s.indexOf(String.valueOf(i)) >= 0); |
504 |
> |
assertTrue(s.contains(String.valueOf(i))); |
505 |
|
} |
506 |
< |
} |
506 |
> |
} |
507 |
|
|
508 |
|
// Exception tests |
509 |
< |
|
509 |
> |
|
510 |
|
/** |
511 |
< |
* Cannot create with negative capacity |
511 |
> |
* Cannot create with only negative capacity |
512 |
|
*/ |
513 |
|
public void testConstructor1() { |
514 |
|
try { |
515 |
< |
new ConcurrentHashMap(-1,0,1); |
515 |
> |
new ConcurrentHashMap(-1); |
516 |
|
shouldThrow(); |
517 |
< |
} catch(IllegalArgumentException e){} |
517 |
> |
} catch (IllegalArgumentException success) {} |
518 |
|
} |
519 |
|
|
520 |
|
/** |
521 |
< |
* Cannot create with negative concurrency level |
522 |
< |
*/ |
521 |
> |
* Constructor (initialCapacity, loadFactor) throws |
522 |
> |
* IllegalArgumentException if either argument is negative |
523 |
> |
*/ |
524 |
|
public void testConstructor2() { |
525 |
|
try { |
526 |
< |
new ConcurrentHashMap(1,0,-1); |
526 |
> |
new ConcurrentHashMap(-1, .75f); |
527 |
|
shouldThrow(); |
528 |
< |
} catch(IllegalArgumentException e){} |
528 |
> |
} catch (IllegalArgumentException e) {} |
529 |
> |
|
530 |
> |
try { |
531 |
> |
new ConcurrentHashMap(16, -1); |
532 |
> |
shouldThrow(); |
533 |
> |
} catch (IllegalArgumentException e) {} |
534 |
|
} |
535 |
+ |
|
536 |
+ |
/** |
537 |
+ |
* Constructor (initialCapacity, loadFactor, concurrencyLevel) |
538 |
+ |
* throws IllegalArgumentException if any argument is negative |
539 |
+ |
*/ |
540 |
+ |
public void testConstructor3() { |
541 |
+ |
try { |
542 |
+ |
new ConcurrentHashMap(-1, .75f, 1); |
543 |
+ |
shouldThrow(); |
544 |
+ |
} catch (IllegalArgumentException e) {} |
545 |
+ |
|
546 |
+ |
try { |
547 |
+ |
new ConcurrentHashMap(16, -1, 1); |
548 |
+ |
shouldThrow(); |
549 |
+ |
} catch (IllegalArgumentException e) {} |
550 |
+ |
|
551 |
+ |
try { |
552 |
+ |
new ConcurrentHashMap(16, .75f, -1); |
553 |
+ |
shouldThrow(); |
554 |
+ |
} catch (IllegalArgumentException e) {} |
555 |
+ |
} |
556 |
|
|
557 |
|
/** |
558 |
< |
* Cannot create with only negative capacity |
558 |
> |
* ConcurrentHashMap(map) throws NullPointerException if the given |
559 |
> |
* map is null |
560 |
|
*/ |
561 |
< |
public void testConstructor3() { |
561 |
> |
public void testConstructor4() { |
562 |
|
try { |
563 |
< |
new ConcurrentHashMap(-1); |
563 |
> |
new ConcurrentHashMap(null); |
564 |
|
shouldThrow(); |
565 |
< |
} catch(IllegalArgumentException e){} |
565 |
> |
} catch (NullPointerException e) {} |
566 |
|
} |
567 |
|
|
568 |
|
/** |
569 |
+ |
* ConcurrentHashMap(map) creates a new map with the same mappings |
570 |
+ |
* as the given map |
571 |
+ |
*/ |
572 |
+ |
public void testConstructor5() { |
573 |
+ |
ConcurrentHashMap map1 = map5(); |
574 |
+ |
ConcurrentHashMap map2 = new ConcurrentHashMap(map5()); |
575 |
+ |
assertTrue(map2.equals(map1)); |
576 |
+ |
map2.put(one, "F"); |
577 |
+ |
assertFalse(map2.equals(map1)); |
578 |
+ |
} |
579 |
+ |
|
580 |
+ |
|
581 |
+ |
/** |
582 |
|
* get(null) throws NPE |
583 |
|
*/ |
584 |
|
public void testGet_NullPointerException() { |
586 |
|
ConcurrentHashMap c = new ConcurrentHashMap(5); |
587 |
|
c.get(null); |
588 |
|
shouldThrow(); |
589 |
< |
} catch(NullPointerException e){} |
589 |
> |
} catch (NullPointerException success) {} |
590 |
|
} |
591 |
|
|
592 |
|
/** |
597 |
|
ConcurrentHashMap c = new ConcurrentHashMap(5); |
598 |
|
c.containsKey(null); |
599 |
|
shouldThrow(); |
600 |
< |
} catch(NullPointerException e){} |
600 |
> |
} catch (NullPointerException success) {} |
601 |
|
} |
602 |
|
|
603 |
|
/** |
608 |
|
ConcurrentHashMap c = new ConcurrentHashMap(5); |
609 |
|
c.containsValue(null); |
610 |
|
shouldThrow(); |
611 |
< |
} catch(NullPointerException e){} |
611 |
> |
} catch (NullPointerException success) {} |
612 |
|
} |
613 |
|
|
614 |
|
/** |
619 |
|
ConcurrentHashMap c = new ConcurrentHashMap(5); |
620 |
|
c.contains(null); |
621 |
|
shouldThrow(); |
622 |
< |
} catch(NullPointerException e){} |
622 |
> |
} catch (NullPointerException success) {} |
623 |
|
} |
624 |
|
|
625 |
|
/** |
630 |
|
ConcurrentHashMap c = new ConcurrentHashMap(5); |
631 |
|
c.put(null, "whatever"); |
632 |
|
shouldThrow(); |
633 |
< |
} catch(NullPointerException e){} |
633 |
> |
} catch (NullPointerException success) {} |
634 |
|
} |
635 |
|
|
636 |
|
/** |
641 |
|
ConcurrentHashMap c = new ConcurrentHashMap(5); |
642 |
|
c.put("whatever", null); |
643 |
|
shouldThrow(); |
644 |
< |
} catch(NullPointerException e){} |
644 |
> |
} catch (NullPointerException success) {} |
645 |
|
} |
646 |
|
|
647 |
|
/** |
652 |
|
ConcurrentHashMap c = new ConcurrentHashMap(5); |
653 |
|
c.putIfAbsent(null, "whatever"); |
654 |
|
shouldThrow(); |
655 |
< |
} catch(NullPointerException e){} |
655 |
> |
} catch (NullPointerException success) {} |
656 |
|
} |
657 |
|
|
658 |
|
/** |
663 |
|
ConcurrentHashMap c = new ConcurrentHashMap(5); |
664 |
|
c.replace(null, "whatever"); |
665 |
|
shouldThrow(); |
666 |
< |
} catch(NullPointerException e){} |
666 |
> |
} catch (NullPointerException success) {} |
667 |
|
} |
668 |
|
|
669 |
|
/** |
674 |
|
ConcurrentHashMap c = new ConcurrentHashMap(5); |
675 |
|
c.replace(null, one, "whatever"); |
676 |
|
shouldThrow(); |
677 |
< |
} catch(NullPointerException e){} |
677 |
> |
} catch (NullPointerException success) {} |
678 |
|
} |
679 |
|
|
680 |
|
/** |
685 |
|
ConcurrentHashMap c = new ConcurrentHashMap(5); |
686 |
|
c.putIfAbsent("whatever", null); |
687 |
|
shouldThrow(); |
688 |
< |
} catch(NullPointerException e){} |
688 |
> |
} catch (NullPointerException success) {} |
689 |
|
} |
690 |
|
|
487 |
– |
|
691 |
|
/** |
692 |
|
* replace(x, null) throws NPE |
693 |
|
*/ |
696 |
|
ConcurrentHashMap c = new ConcurrentHashMap(5); |
697 |
|
c.replace("whatever", null); |
698 |
|
shouldThrow(); |
699 |
< |
} catch(NullPointerException e){} |
699 |
> |
} catch (NullPointerException success) {} |
700 |
|
} |
701 |
|
|
702 |
|
/** |
707 |
|
ConcurrentHashMap c = new ConcurrentHashMap(5); |
708 |
|
c.replace("whatever", null, "A"); |
709 |
|
shouldThrow(); |
710 |
< |
} catch(NullPointerException e){} |
710 |
> |
} catch (NullPointerException success) {} |
711 |
|
} |
712 |
|
|
713 |
|
/** |
718 |
|
ConcurrentHashMap c = new ConcurrentHashMap(5); |
719 |
|
c.replace("whatever", one, null); |
720 |
|
shouldThrow(); |
721 |
< |
} catch(NullPointerException e){} |
721 |
> |
} catch (NullPointerException success) {} |
722 |
|
} |
723 |
|
|
521 |
– |
|
724 |
|
/** |
725 |
|
* remove(null) throws NPE |
726 |
|
*/ |
730 |
|
c.put("sadsdf", "asdads"); |
731 |
|
c.remove(null); |
732 |
|
shouldThrow(); |
733 |
< |
} catch(NullPointerException e){} |
733 |
> |
} catch (NullPointerException success) {} |
734 |
|
} |
735 |
|
|
736 |
|
/** |
742 |
|
c.put("sadsdf", "asdads"); |
743 |
|
c.remove(null, "whatever"); |
744 |
|
shouldThrow(); |
745 |
< |
} catch(NullPointerException e){} |
745 |
> |
} catch (NullPointerException success) {} |
746 |
|
} |
747 |
|
|
748 |
|
/** |
749 |
|
* remove(x, null) returns false |
750 |
|
*/ |
751 |
|
public void testRemove3() { |
752 |
< |
try { |
753 |
< |
ConcurrentHashMap c = new ConcurrentHashMap(5); |
754 |
< |
c.put("sadsdf", "asdads"); |
553 |
< |
assertFalse(c.remove("sadsdf", null)); |
554 |
< |
} catch(NullPointerException e){ |
555 |
< |
fail(); |
556 |
< |
} |
752 |
> |
ConcurrentHashMap c = new ConcurrentHashMap(5); |
753 |
> |
c.put("sadsdf", "asdads"); |
754 |
> |
assertFalse(c.remove("sadsdf", null)); |
755 |
|
} |
756 |
|
|
757 |
|
/** |
758 |
|
* A deserialized map equals original |
759 |
|
*/ |
760 |
< |
public void testSerialization() { |
761 |
< |
ConcurrentHashMap q = map5(); |
762 |
< |
|
763 |
< |
try { |
764 |
< |
ByteArrayOutputStream bout = new ByteArrayOutputStream(10000); |
765 |
< |
ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout)); |
766 |
< |
out.writeObject(q); |
767 |
< |
out.close(); |
570 |
< |
|
571 |
< |
ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray()); |
572 |
< |
ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin)); |
573 |
< |
ConcurrentHashMap r = (ConcurrentHashMap)in.readObject(); |
574 |
< |
assertEquals(q.size(), r.size()); |
575 |
< |
assertTrue(q.equals(r)); |
576 |
< |
assertTrue(r.equals(q)); |
577 |
< |
} catch(Exception e){ |
578 |
< |
e.printStackTrace(); |
579 |
< |
unexpectedException(); |
580 |
< |
} |
760 |
> |
public void testSerialization() throws Exception { |
761 |
> |
Map x = map5(); |
762 |
> |
Map y = serialClone(x); |
763 |
> |
|
764 |
> |
assertNotSame(x, y); |
765 |
> |
assertEquals(x.size(), y.size()); |
766 |
> |
assertEquals(x, y); |
767 |
> |
assertEquals(y, x); |
768 |
|
} |
769 |
|
|
583 |
– |
|
770 |
|
/** |
771 |
|
* SetValue of an EntrySet entry sets value in the map. |
772 |
|
*/ |
773 |
|
public void testSetValueWriteThrough() { |
774 |
< |
// Adapted from a bug report by Eric Zoerner |
774 |
> |
// Adapted from a bug report by Eric Zoerner |
775 |
|
ConcurrentHashMap map = new ConcurrentHashMap(2, 5.0f, 1); |
776 |
|
assertTrue(map.isEmpty()); |
777 |
|
for (int i = 0; i < 20; i++) |
778 |
|
map.put(new Integer(i), new Integer(i)); |
779 |
|
assertFalse(map.isEmpty()); |
780 |
|
Map.Entry entry1 = (Map.Entry)map.entrySet().iterator().next(); |
781 |
< |
|
782 |
< |
// assert that entry1 is not 16 |
783 |
< |
assertTrue("entry is 16, test not valid", |
784 |
< |
!entry1.getKey().equals(new Integer(16))); |
785 |
< |
|
786 |
< |
// remove 16 (a different key) from map |
787 |
< |
// which just happens to cause entry1 to be cloned in map |
788 |
< |
map.remove(new Integer(16)); |
789 |
< |
entry1.setValue("XYZ"); |
604 |
< |
assertTrue(map.containsValue("XYZ")); // fails |
781 |
> |
// Unless it happens to be first (in which case remainder of |
782 |
> |
// test is skipped), remove a possibly-colliding key from map |
783 |
> |
// which, under some implementations, may cause entry1 to be |
784 |
> |
// cloned in map |
785 |
> |
if (!entry1.getKey().equals(new Integer(16))) { |
786 |
> |
map.remove(new Integer(16)); |
787 |
> |
entry1.setValue("XYZ"); |
788 |
> |
assertTrue(map.containsValue("XYZ")); // fails if write-through broken |
789 |
> |
} |
790 |
|
} |
791 |
< |
|
791 |
> |
|
792 |
|
} |