Commons Collections example source code file (TestListOrderedSet2.java)

This example Commons Collections source code file (TestListOrderedSet2.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

integer, integer, list, listorderedset, listorderedset, one, sequence, sequence, set, set, string, testlistorderedset2, three, two, util

The Commons Collections TestListOrderedSet2.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.set;

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

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

/**
 * Extension of {@link TestSet} for exercising the {@link ListOrderedSet}
 * implementation.
 *
 * @since Commons Collections 3.1
 * @version $Revision: 646780 $ $Date: 2008-04-10 13:48:07 +0100 (Thu, 10 Apr 2008) $
 * 
 * @author Henning P. Schmiedehausen
 * @author Stephen Colebourne
 */
public class TestListOrderedSet2 extends AbstractTestSet {

    public TestListOrderedSet2(String testName) {
        super(testName);
    }

    public static Test suite() {
        return new TestSuite(TestListOrderedSet2.class);
    }

    public static void main(String args[]) {
        String[] testCaseName = { TestListOrderedSet2.class.getName()};
        junit.textui.TestRunner.main(testCaseName);
    }

    public Set makeEmptySet() {
        return new ListOrderedSet();
    }

    protected Set setupSet() {
        Set set = makeEmptySet();

        for (int i = 0; i < 10; i++) {
            set.add(Integer.toString(i));
        }
        return set;
    }

    public void testOrdering() {
        Set set = setupSet();
        Iterator it = set.iterator();

        for (int i = 0; i < 10; i++) {
            assertEquals("Sequence is wrong", Integer.toString(i), it.next());
        }

        for (int i = 0; i < 10; i += 2) {
            assertTrue("Must be able to remove int", set.remove(Integer.toString(i)));
        }

        it = set.iterator();
        for (int i = 1; i < 10; i += 2) {
            assertEquals("Sequence is wrong after remove ", Integer.toString(i), it.next());
        }

        for (int i = 0; i < 10; i++) {
            set.add(Integer.toString(i));
        }

        assertEquals("Size of set is wrong!", 10, set.size());

        it = set.iterator();
        for (int i = 1; i < 10; i += 2) {
            assertEquals("Sequence is wrong", Integer.toString(i), it.next());
        }
        for (int i = 0; i < 10; i += 2) {
            assertEquals("Sequence is wrong", Integer.toString(i), it.next());
        }
    }
    
    private static final Integer ZERO = new Integer(0);
    private static final Integer ONE = new Integer(1);
    private static final Integer TWO = new Integer(2);
    private static final Integer THREE = new Integer(3);
    
    public void testListAddRemove() {
        ListOrderedSet set = (ListOrderedSet) makeEmptySet();
        List view = set.asList();
        set.add(ZERO);
        set.add(ONE);
        set.add(TWO);
        
        assertEquals(3, set.size());
        assertSame(ZERO, set.get(0));
        assertSame(ONE, set.get(1));
        assertSame(TWO, set.get(2));
        assertEquals(3, view.size());
        assertSame(ZERO, view.get(0));
        assertSame(ONE, view.get(1));
        assertSame(TWO, view.get(2));
        
        assertEquals(0, set.indexOf(ZERO));
        assertEquals(1, set.indexOf(ONE));
        assertEquals(2, set.indexOf(TWO));
        
        set.remove(1);
        assertEquals(2, set.size());
        assertSame(ZERO, set.get(0));
        assertSame(TWO, set.get(1));
        assertEquals(2, view.size());
        assertSame(ZERO, view.get(0));
        assertSame(TWO, view.get(1));
    }        
    
    public void testListAddIndexed() {
        ListOrderedSet set = (ListOrderedSet) makeEmptySet();
        List view = set.asList();
        set.add(ZERO);
        set.add(TWO);
        
        set.add(1, ONE);
        assertEquals(3, set.size());
        assertSame(ZERO, set.get(0));
        assertSame(ONE, set.get(1));
        assertSame(TWO, set.get(2));
        
        set.add(0, ONE);
        assertEquals(3, set.size());
        assertSame(ZERO, set.get(0));
        assertSame(ONE, set.get(1));
        assertSame(TWO, set.get(2));
        
        List list = new ArrayList();
        list.add(ZERO);
        list.add(TWO);
        
        set.addAll(0, list);
        assertEquals(3, set.size());
        assertSame(ZERO, set.get(0));
        assertSame(ONE, set.get(1));
        assertSame(TWO, set.get(2));
        
        list.add(0, THREE); // list = [3,0,2]
        set.remove(TWO);    //  set = [0,1]
        set.addAll(1, list);
        assertEquals(4, set.size());
        assertSame(ZERO, set.get(0));
        assertSame(THREE, set.get(1));
        assertSame(TWO, set.get(2));
        assertSame(ONE, set.get(3));
    }
    
    public String getCompatibilityVersion() {
        return "3.1";
    }

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

}