Commons Collections example source code file (TestMapBackedSet2.java)

This example Commons Collections source code file (TestMapBackedSet2.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

abstracttestset, iterator, linkedmap, linkedmap, must, sequence, sequence, set, set, size, string, test, testmapbackedset2, testmapbackedset2, util

The Commons Collections TestMapBackedSet2.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.Iterator;
import java.util.Set;

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

import org.apache.commons.collections.map.LinkedMap;

/**
 * JUnit test.
 *
 * @since Commons Collections 3.1
 * @version $Revision: 646780 $ $Date: 2008-04-10 13:48:07 +0100 (Thu, 10 Apr 2008) $
 * 
 * @author Stephen Colebourne
 */
public class TestMapBackedSet2 extends AbstractTestSet {

    public TestMapBackedSet2(String testName) {
        super(testName);
    }

    public static Test suite() {
        return new TestSuite(TestMapBackedSet2.class);
    }

    public static void main(String args[]) {
        String[] testCaseName = { TestMapBackedSet2.class.getName()};
        junit.textui.TestRunner.main(testCaseName);
    }

    public Set makeEmptySet() {
        return MapBackedSet.decorate(new LinkedMap());
    }

    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());
        }
    }

    public void testCanonicalEmptyCollectionExists() {
    }

    public void testCanonicalFullCollectionExists() {
    }

}