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Commons Collections example source code file (TestIdentityMap.java)
The Commons Collections TestIdentityMap.java source code/* * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You under the Apache License, Version 2.0 * (the "License"); you may not use this file except in compliance with * the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package org.apache.commons.collections.map; import java.io.IOException; import java.io.Serializable; import java.util.Iterator; import java.util.Map; import junit.framework.Test; import junit.framework.TestSuite; import junit.textui.TestRunner; import org.apache.commons.collections.AbstractTestObject; import org.apache.commons.collections.IterableMap; /** * JUnit tests. * * @version $Revision: 646780 $ $Date: 2008-04-10 13:48:07 +0100 (Thu, 10 Apr 2008) $ * * @author Stephen Colebourne */ public class TestIdentityMap extends AbstractTestObject { private static final Integer I1A = new Integer(1); private static final Integer I1B = new Integer(1); private static final Integer I2A = new Integer(2); private static final Integer I2B = new Integer(2); public TestIdentityMap(String testName) { super(testName); } public static void main(String[] args) { TestRunner.run(suite()); } public static Test suite() { return new TestSuite(TestIdentityMap.class); // return BulkTest.makeSuite(TestIdentityMap.class); // causes race condition! } public Object makeObject() { return new IdentityMap(); } public String getCompatibilityVersion() { return "3"; } //----------------------------------------------------------------------- public void testBasics() { IterableMap map = new IdentityMap(); assertEquals(0, map.size()); map.put(I1A, I2A); assertEquals(1, map.size()); assertSame(I2A, map.get(I1A)); assertSame(null, map.get(I1B)); assertEquals(true, map.containsKey(I1A)); assertEquals(false, map.containsKey(I1B)); assertEquals(true, map.containsValue(I2A)); assertEquals(false, map.containsValue(I2B)); map.put(I1A, I2B); assertEquals(1, map.size()); assertSame(I2B, map.get(I1A)); assertSame(null, map.get(I1B)); assertEquals(true, map.containsKey(I1A)); assertEquals(false, map.containsKey(I1B)); assertEquals(false, map.containsValue(I2A)); assertEquals(true, map.containsValue(I2B)); map.put(I1B, I2B); assertEquals(2, map.size()); assertSame(I2B, map.get(I1A)); assertSame(I2B, map.get(I1B)); assertEquals(true, map.containsKey(I1A)); assertEquals(true, map.containsKey(I1B)); assertEquals(false, map.containsValue(I2A)); assertEquals(true, map.containsValue(I2B)); } //----------------------------------------------------------------------- public void testHashEntry() { IterableMap map = new IdentityMap(); map.put(I1A, I2A); map.put(I1B, I2A); Map.Entry entry1 = (Map.Entry) map.entrySet().iterator().next(); Iterator it = map.entrySet().iterator(); Map.Entry entry2 = (Map.Entry) it.next(); Map.Entry entry3 = (Map.Entry) it.next(); assertEquals(true, entry1.equals(entry2)); assertEquals(true, entry2.equals(entry1)); assertEquals(false, entry1.equals(entry3)); } /** * Compare the current serialized form of the Map * against the canonical version in CVS. */ public void testEmptyMapCompatibility() throws IOException, ClassNotFoundException { // test to make sure the canonical form has been preserved Map map = (Map) makeObject(); if (map instanceof Serializable && !skipSerializedCanonicalTests()) { Map map2 = (Map) readExternalFormFromDisk(getCanonicalEmptyCollectionName(map)); assertEquals("Map is empty", 0, map2.size()); } } public void testClone() { IdentityMap map = new IdentityMap(10); map.put("1", "1"); Map cloned = (Map) map.clone(); assertEquals(map.size(), cloned.size()); assertSame(map.get("1"), cloned.get("1")); } // public void testCreate() throws Exception { // Map map = new IdentityMap(); // writeExternalFormToDisk((java.io.Serializable) map, "D:/dev/collections/data/test/IdentityMap.emptyCollection.version3.obj"); // map = new IdentityMap(); // map.put(I1A, I2A); // map.put(I1B, I2A); // map.put(I2A, I2B); // writeExternalFormToDisk((java.io.Serializable) map, "D:/dev/collections/data/test/IdentityMap.fullCollection.version3.obj"); // } } Other Commons Collections examples (source code examples)Here is a short list of links related to this Commons Collections TestIdentityMap.java source code file: |
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