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Commons Collections example source code file (TestUnmodifiableList.java)

This example Commons Collections source code file (TestUnmodifiableList.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

arraylist, arraylist, expecting, expecting, integer, integer, iterator, list, object, string, testunmodifiablelist, unmodifiablelist, unsupportedoperationexception, unsupportedoperationexception, util

The Commons Collections TestUnmodifiableList.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.list;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.Iterator;
import java.util.List;

import junit.framework.Test;
import junit.framework.TestSuite;

/**
 * Extension of {@link AbstractTestList} for exercising the 
 * {@link UnmodifiableList} implementation.
 *
 * @since Commons Collections 3.0
 * @version $Revision: 646780 $ $Date: 2008-04-10 13:48:07 +0100 (Thu, 10 Apr 2008) $
 * 
 * @author Phil Steitz
 */
public class TestUnmodifiableList extends AbstractTestList {
    
    public TestUnmodifiableList(String testName) {
        super(testName);
    }
    
    public static Test suite() {
        return new TestSuite(TestUnmodifiableList.class);
    }
    
    public static void main(String args[]) {
        String[] testCaseName = { TestUnmodifiableList.class.getName()};
        junit.textui.TestRunner.main(testCaseName);
    }

    //-----------------------------------------------------------------------    
    public List makeEmptyList() {
        return UnmodifiableList.decorate(new ArrayList());
    }
    
    public List makeFullList() {
        ArrayList list = new ArrayList();
        list.addAll(Arrays.asList(getFullElements()));
        return UnmodifiableList.decorate(list);
    }
    
    public boolean isSetSupported() {
        return false;
    }
    
    public boolean isAddSupported() {
        return false;
    }
    
    public boolean isRemoveSupported() {
        return false;
    }
    
    //-----------------------------------------------------------------------    
    protected UnmodifiableList list = null;
    protected ArrayList array = null;
    
    protected void setupList() {
        list = (UnmodifiableList) makeFullList();
        array = new ArrayList();
        array.add(new Integer(1));
    }
    
    /** 
     * Verify that base list and sublists are not modifiable
     */
    public void testUnmodifiable() {
        setupList();
        verifyUnmodifiable(list); 
        verifyUnmodifiable(list.subList(0, 2));
    } 
        
    protected void verifyUnmodifiable(List list) {
        try {
            list.add(0, new Integer(0));
            fail("Expecting UnsupportedOperationException.");
        } catch (UnsupportedOperationException e) {
            // expected
        } 
        try {
            list.add(new Integer(0));
             fail("Expecting UnsupportedOperationException.");
        } catch (UnsupportedOperationException e) {
            // expected
        }
        try {
            list.addAll(0, array);
             fail("Expecting UnsupportedOperationException.");
        } catch (UnsupportedOperationException e) {
            // expected
        }
        try {
            list.addAll(array);
             fail("Expecting UnsupportedOperationException.");
        } catch (UnsupportedOperationException e) {
            // expected
        }
        try {
            list.clear();
             fail("Expecting UnsupportedOperationException.");
        } catch (UnsupportedOperationException e) {
            // expected
        }
        try {
            list.remove(0);
             fail("Expecting UnsupportedOperationException.");
        } catch (UnsupportedOperationException e) {
            // expected
        }
        try {
            list.remove(new Integer(0));
             fail("Expecting UnsupportedOperationException.");
        } catch (UnsupportedOperationException e) {
            // expected
        }
        try {
            list.removeAll(array);
             fail("Expecting UnsupportedOperationException.");
        } catch (UnsupportedOperationException e) {
            // expected
        }
        try {
            list.retainAll(array);
             fail("Expecting UnsupportedOperationException.");
        } catch (UnsupportedOperationException e) {
            // expected
        }
        try {
            list.set(0, new Integer(0));
             fail("Expecting UnsupportedOperationException.");
        } catch (UnsupportedOperationException e) {
            // expected
        }
    }
    
    /**
     * Verify that iterator is not modifiable
     */
    public void testUnmodifiableIterator() {
        setupList();
        Iterator iterator = list.iterator();
        try {
            Object obj = iterator.next();
            iterator.remove();
            fail("Expecting UnsupportedOperationException.");
        } catch (UnsupportedOperationException e) {
            // expected
        }
    }

    public String getCompatibilityVersion() {
        return "3.1";
    }

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

}

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