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Commons Collections example source code file (TestFlat3Map.java)

This example Commons Collections source code file (TestFlat3Map.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Commons Collections tags/keywords

bytearrayinputstream, bytearrayoutputstream, bytearrayoutputstream, flat3map, flat3map, io, objectinputstream, objectinputstream, objectoutputstream, objectoutputstream, one, ten, testflatmapiterator, twenty, two, util

The Commons Collections TestFlat3Map.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.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.util.Map;

import junit.framework.Test;
import junit.textui.TestRunner;

import org.apache.commons.collections.BulkTest;
import org.apache.commons.collections.MapIterator;
import org.apache.commons.collections.iterators.AbstractTestMapIterator;

/**
 * JUnit tests.
 * 
 * @version $Revision: 646780 $ $Date: 2008-04-10 13:48:07 +0100 (Thu, 10 Apr 2008) $
 * 
 * @author Stephen Colebourne
 */
public class TestFlat3Map extends AbstractTestIterableMap {

    private static final Integer ONE = new Integer(1);
    private static final Integer TWO = new Integer(2);
    private static final String TEN = "10";
    private static final String TWENTY = "20";
        
    public TestFlat3Map(String testName) {
        super(testName);
    }

    public static void main(String[] args) {
        TestRunner.run(suite());
    }
    
    public static Test suite() {
        return BulkTest.makeSuite(TestFlat3Map.class);
    }

    public Map makeEmptyMap() {
        return new Flat3Map();
    }

    //-----------------------------------------------------------------------
    public void testEquals1() {
        Flat3Map map1 = new Flat3Map();
        map1.put("a", "testA");
        map1.put("b", "testB");
        Flat3Map map2 = new Flat3Map();
        map2.put("a", "testB");
        map2.put("b", "testA");
        assertEquals(false, map1.equals(map2));
    }

    public void testEquals2() {
        Flat3Map map1 = new Flat3Map();
        map1.put("a", "testA");
        map1.put("b", "testB");
        Flat3Map map2 = new Flat3Map();
        map2.put("a", "testB");
        map2.put("c", "testA");
        assertEquals(false, map1.equals(map2));
    }

    public void testClone2() {
        Flat3Map map = new Flat3Map();
        assertEquals(0, map.size());
        map.put(ONE, TEN);
        map.put(TWO, TWENTY);
        assertEquals(2, map.size());
        assertEquals(true, map.containsKey(ONE));
        assertEquals(true, map.containsKey(TWO));
        assertSame(TEN, map.get(ONE));
        assertSame(TWENTY, map.get(TWO));

        // clone works (size = 2)        
        Flat3Map cloned = (Flat3Map) map.clone();
        assertEquals(2, cloned.size());
        assertEquals(true, cloned.containsKey(ONE));
        assertEquals(true, cloned.containsKey(TWO));
        assertSame(TEN, cloned.get(ONE));
        assertSame(TWENTY, cloned.get(TWO));
        
        // change original doesn't change clone
        map.put(TEN, ONE);
        map.put(TWENTY, TWO);
        assertEquals(4, map.size());
        assertEquals(2, cloned.size());
        assertEquals(true, cloned.containsKey(ONE));
        assertEquals(true, cloned.containsKey(TWO));
        assertSame(TEN, cloned.get(ONE));
        assertSame(TWENTY, cloned.get(TWO));
    }        
    public void testClone4() {
        Flat3Map map = new Flat3Map();
        assertEquals(0, map.size());
        map.put(ONE, TEN);
        map.put(TWO, TWENTY);
        map.put(TEN, ONE);
        map.put(TWENTY, TWO);
        
        // clone works (size = 4)
        Flat3Map cloned = (Flat3Map) map.clone();
        assertEquals(4, map.size());
        assertEquals(4, cloned.size());
        assertEquals(true, cloned.containsKey(ONE));
        assertEquals(true, cloned.containsKey(TWO));
        assertEquals(true, cloned.containsKey(TEN));
        assertEquals(true, cloned.containsKey(TWENTY));
        assertSame(TEN, cloned.get(ONE));
        assertSame(TWENTY, cloned.get(TWO));
        assertSame(ONE, cloned.get(TEN));
        assertSame(TWO, cloned.get(TWENTY));
        
        // change original doesn't change clone
        map.clear();
        assertEquals(0, map.size());
        assertEquals(4, cloned.size());
        assertEquals(true, cloned.containsKey(ONE));
        assertEquals(true, cloned.containsKey(TWO));
        assertEquals(true, cloned.containsKey(TEN));
        assertEquals(true, cloned.containsKey(TWENTY));
        assertSame(TEN, cloned.get(ONE));
        assertSame(TWENTY, cloned.get(TWO));
        assertSame(ONE, cloned.get(TEN));
        assertSame(TWO, cloned.get(TWENTY));
    }
    
    public void testSerialisation0() throws Exception {
        Flat3Map map = new Flat3Map();
        ByteArrayOutputStream bout = new ByteArrayOutputStream();
        ObjectOutputStream out = new ObjectOutputStream(bout);
        out.writeObject(map);
        byte[] bytes = bout.toByteArray();
        out.close();
        ByteArrayInputStream bin = new ByteArrayInputStream(bytes);
        ObjectInputStream in = new ObjectInputStream(bin);
        Flat3Map ser = (Flat3Map) in.readObject();
        in.close();
        assertEquals(0, map.size());
        assertEquals(0, ser.size());
    }
    
    public void testSerialisation2() throws Exception {
        Flat3Map map = new Flat3Map();
        map.put(ONE, TEN);
        map.put(TWO, TWENTY);
        
        ByteArrayOutputStream bout = new ByteArrayOutputStream();
        ObjectOutputStream out = new ObjectOutputStream(bout);
        out.writeObject(map);
        byte[] bytes = bout.toByteArray();
        out.close();
        ByteArrayInputStream bin = new ByteArrayInputStream(bytes);
        ObjectInputStream in = new ObjectInputStream(bin);
        Flat3Map ser = (Flat3Map) in.readObject();
        in.close();
        assertEquals(2, map.size());
        assertEquals(2, ser.size());
        assertEquals(true, ser.containsKey(ONE));
        assertEquals(true, ser.containsKey(TWO));
        assertEquals(TEN, ser.get(ONE));
        assertEquals(TWENTY, ser.get(TWO));
    }
    
    public void testSerialisation4() throws Exception {
        Flat3Map map = new Flat3Map();
        map.put(ONE, TEN);
        map.put(TWO, TWENTY);
        map.put(TEN, ONE);
        map.put(TWENTY, TWO);
        
        ByteArrayOutputStream bout = new ByteArrayOutputStream();
        ObjectOutputStream out = new ObjectOutputStream(bout);
        out.writeObject(map);
        byte[] bytes = bout.toByteArray();
        out.close();
        ByteArrayInputStream bin = new ByteArrayInputStream(bytes);
        ObjectInputStream in = new ObjectInputStream(bin);
        Flat3Map ser = (Flat3Map) in.readObject();
        in.close();
        assertEquals(4, map.size());
        assertEquals(4, ser.size());
        assertEquals(true, ser.containsKey(ONE));
        assertEquals(true, ser.containsKey(TWO));
        assertEquals(true, ser.containsKey(TEN));
        assertEquals(true, ser.containsKey(TWENTY));
        assertEquals(TEN, ser.get(ONE));
        assertEquals(TWENTY, ser.get(TWO));
        assertEquals(ONE, ser.get(TEN));
        assertEquals(TWO, ser.get(TWENTY));
    }
    
    //-----------------------------------------------------------------------
    public BulkTest bulkTestMapIterator() {
        return new TestFlatMapIterator();
    }
    
    public class TestFlatMapIterator extends AbstractTestMapIterator {
        public TestFlatMapIterator() {
            super("TestFlatMapIterator");
        }
        
        public Object[] addSetValues() {
            return TestFlat3Map.this.getNewSampleValues();
        }
        
        public boolean supportsRemove() {
            return TestFlat3Map.this.isRemoveSupported();
        }

        public boolean supportsSetValue() {
            return TestFlat3Map.this.isSetValueSupported();
        }

        public MapIterator makeEmptyMapIterator() {
            resetEmpty();
            return ((Flat3Map) TestFlat3Map.this.map).mapIterator();
        }

        public MapIterator makeFullMapIterator() {
            resetFull();
            return ((Flat3Map) TestFlat3Map.this.map).mapIterator();
        }
        
        public Map getMap() {
            // assumes makeFullMapIterator() called first
            return TestFlat3Map.this.map;
        }
        
        public Map getConfirmedMap() {
            // assumes makeFullMapIterator() called first
            return TestFlat3Map.this.confirmed;
        }
        
        public void verify() {
            super.verify();
            TestFlat3Map.this.verify();
        }
    }
    
    public String getCompatibilityVersion() {
        return "3.1";
    }

//    public void testCreate() throws Exception {
//        resetEmpty();
//        writeExternalFormToDisk(
//            (java.io.Serializable) map,
//            "D:/dev/collections/data/test/Flat3Map.emptyCollection.version3.1.obj");
//        resetFull();
//        writeExternalFormToDisk(
//            (java.io.Serializable) map,
//            "D:/dev/collections/data/test/Flat3Map.fullCollection.version3.1.obj");
//    }
}

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