/*
* Copyright 2001-2004 The Apache Software Foundation
*
* Licensed 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: 1.7 $ $Date: 2004/02/27 00:25:14 $
*
* @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");
// }
}