Commons Collections example source code file (TestEnumerationUtils.java)

This example Commons Collections source code file (TestEnumerationUtils.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, bulktest, hashtable, integer, integer, list, list, string, stringtokenizer, stringtokenizer, test, testenumerationutils, to_list_fixture, util

The Commons Collections TestEnumerationUtils.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;

import java.util.ArrayList;
import java.util.Hashtable;
import java.util.List;
import java.util.StringTokenizer;

import junit.framework.Assert;
import junit.framework.Test;

/**
 * Tests EnumerationUtils.
 * 
 * @author <a href="mailto:ggregory@seagullsw.com">Gary Gregory
 * @version $Id: TestEnumerationUtils.java 646780 2008-04-10 12:48:07Z niallp $
 */
public class TestEnumerationUtils extends BulkTest {

    public TestEnumerationUtils(String name) {
        super(name);
    }

    public static final String TO_LIST_FIXTURE = "this is a test";
    
    public void testToListWithStringTokenizer() {
        List expectedList1 = new ArrayList();
        StringTokenizer st = new StringTokenizer(TO_LIST_FIXTURE);
             while (st.hasMoreTokens()) {
                 expectedList1.add(st.nextToken());
             }        
        List expectedList2 = new ArrayList();
        expectedList2.add("this");
        expectedList2.add("is");
        expectedList2.add("a");
        expectedList2.add("test");
        List actualList = EnumerationUtils.toList(new StringTokenizer(TO_LIST_FIXTURE));
        Assert.assertEquals(expectedList1, expectedList2);
        Assert.assertEquals(expectedList1, actualList);
        Assert.assertEquals(expectedList2, actualList);
    }

    public void testToListWithHashtable() {
        Hashtable expected = new Hashtable();
        expected.put("one", new Integer(1));
        expected.put("two", new Integer(2));
        expected.put("three", new Integer(3));
        // validate elements.
        List actualEltList = EnumerationUtils.toList(expected.elements());
        Assert.assertEquals(expected.size(), actualEltList.size());
        Assert.assertTrue(actualEltList.contains(new Integer(1)));
        Assert.assertTrue(actualEltList.contains(new Integer(2)));
        Assert.assertTrue(actualEltList.contains(new Integer(3)));
        List expectedEltList = new ArrayList();
        expectedEltList.add(new Integer(1));
        expectedEltList.add(new Integer(2));
        expectedEltList.add(new Integer(3));
        Assert.assertTrue(actualEltList.containsAll(expectedEltList));

        // validate keys.
        List actualKeyList = EnumerationUtils.toList(expected.keys());
        Assert.assertEquals(expected.size(), actualEltList.size());
        Assert.assertTrue(actualKeyList.contains("one"));
        Assert.assertTrue(actualKeyList.contains("two"));
        Assert.assertTrue(actualKeyList.contains("three"));
        List expectedKeyList = new ArrayList();
        expectedKeyList.add("one");
        expectedKeyList.add("two");
        expectedKeyList.add("three");
        Assert.assertTrue(actualKeyList.containsAll(expectedKeyList));
    }

    public static Test suite() {
        return BulkTest.makeSuite(TestEnumerationUtils.class);
    }

}