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Commons Collections example source code file (TestUnmodifiableIterator.java)

This example Commons Collections source code file (TestUnmodifiableIterator.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

abstracttestiterator, illegalargumentexception, iterator, iterator, list, one, string, test, test, testunmodifiableiterator, testunmodifiableiterator, three, two, unmodifiable, util

The Commons Collections TestUnmodifiableIterator.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.iterators;

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

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

import org.apache.commons.collections.Unmodifiable;

 * Tests the UnmodifiableIterator.
 * @version $Revision: 646780 $ $Date: 2008-04-10 13:48:07 +0100 (Thu, 10 Apr 2008) $
 * @author Stephen Colebourne
public class TestUnmodifiableIterator extends AbstractTestIterator {

    protected String[] testArray = { "One", "Two", "Three" };
    protected List testList = new ArrayList(Arrays.asList(testArray));

    public static Test suite() {
        return new TestSuite(TestUnmodifiableIterator.class);

    public TestUnmodifiableIterator(String testName) {

    public Iterator makeEmptyIterator() {
        return UnmodifiableIterator.decorate(Collections.EMPTY_LIST.iterator());

    public Iterator makeFullIterator() {
        return UnmodifiableIterator.decorate(testList.iterator());

    public boolean supportsRemove() {
        return false;

    public void testIterator() {
        assertTrue(makeEmptyIterator() instanceof Unmodifiable);
    public void testDecorateFactory() {
        Iterator it = makeFullIterator();
        assertSame(it, UnmodifiableIterator.decorate(it));
        it = testList.iterator();
        assertTrue(it != UnmodifiableIterator.decorate(it));
        try {
        } catch (IllegalArgumentException ex) {}


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