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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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* Written by Doug Lea and Martin Buchholz with assistance from |
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* members of JCP JSR-166 Expert Group and released to the public |
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* 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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import java.util.Random; |
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import java.util.Set; |
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import java.util.concurrent.ConcurrentHashMap; |
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import java.util.concurrent.ExecutorService; |
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import java.util.concurrent.Executors; |
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import junit.framework.Test; |
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import junit.framework.TestSuite; |
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public class ConcurrentHashMapTest extends JSR166TestCase { |
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public static void main(String[] args) { |
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main(suite(), args); |
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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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class Implementation implements MapImplementation { |
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public Class<?> klazz() { return ConcurrentHashMap.class; } |
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public Map emptyMap() { return new ConcurrentHashMap(); } |
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public Object makeKey(int i) { return i; } |
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public Object makeValue(int i) { return i; } |
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public boolean isConcurrent() { return true; } |
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public boolean permitsNullKeys() { return false; } |
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public boolean permitsNullValues() { return false; } |
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public boolean supportsSetValue() { return true; } |
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} |
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return newTestSuite( |
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ConcurrentHashMapTest.class, |
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MapTest.testSuite(new Implementation())); |
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} |
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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<Integer, String> map5() { |
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ConcurrentHashMap map = new ConcurrentHashMap<Integer, String>(5); |
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ConcurrentHashMap<Integer, String> 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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ConcurrentHashMap<BI, Boolean> m = |
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new ConcurrentHashMap<BI, Boolean>(); |
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for (int i = 0; i < size; i++) { |
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assertTrue(m.put(new CI(i), true) == null); |
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assertNull(m.put(new CI(i), true)); |
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} |
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for (int i = 0; i < size; i++) { |
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assertTrue(m.containsKey(new CI(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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assertNull(m.putIfAbsent(bis, true)); |
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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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} |
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/** |
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* A deserialized map equals original |
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* A deserialized/reserialized map equals original |
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*/ |
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public void testSerialization() throws Exception { |
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Map x = map5(); |
