/*
 *  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.keyvalue;


import junit.framework.TestCase;

import java.util.Map;
import java.util.HashMap;
import java.io.ByteArrayInputStream;
import java.io.ObjectInputStream;
import java.io.ByteArrayOutputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;

/**
 * Unit test for COLLECTIONS-266
 *
 * @version $Revision: 480461 $ $Date: 2006-11-29 00:14:27 -0800 (Wed, 29 Nov 2006) $
 */
public class TestCollections266 extends TestCase {

    static boolean isJVM1;

    Integer ONE = new Integer(1);
    Integer TWO = new Integer(2);

    TestCollections266Key KEY_266 = new TestCollections266Key("key");

    public void testCollections266() throws Exception {
        //we are in the JVM1
        isJVM1 = true;

        MultiKey mk = new MultiKey(ONE, KEY_266);
        Map map = new HashMap();
        map.put(mk, TWO);

        // serialize
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        ObjectOutputStream out = new ObjectOutputStream(baos);
        out.writeObject(map);
        out.close();

        //Simulate that we are now in an other jvm
        isJVM1 = false;

        // deserialize
        ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());
        ObjectInputStream in = new ObjectInputStream(bais);
        Map map2 = (Map) in.readObject();

        //try to find the key in the map:
        MultiKey mk2 = new MultiKey(ONE, KEY_266);
        assertEquals(TWO, map2.get(mk2));
    }



    static final class TestCollections266Key implements Serializable {

        private String value;

        public TestCollections266Key(String value) {
            this.value = value;
        }

        public boolean equals(Object o) {
            return value.equals(((TestCollections266Key) o).value);
        }

        public int hashCode() {
            //simulate System.identityHashCode() - the hash code depends of the jvm
            return isJVM1 ? value.hashCode() : -value.hashCode();
        }
    }


}