Commons Collections example source code file (TestTreeBag.java)

This example Commons Collections source code file (TestTreeBag.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

a, a, b, bag, c, d, should, should, sortedbag, sortedbag, string, testtreebag, testtreebag, treebag

The Commons Collections TestTreeBag.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 junit.framework.Test;
import junit.framework.TestSuite;

import org.apache.commons.collections.bag.AbstractTestBag;

/**
 * Extension of {@link TestBag} for exercising the {@link TreeBag}
 * implementation.
 * 
 * @version $Revision: 646780 $ $Date: 2008-04-10 13:48:07 +0100 (Thu, 10 Apr 2008) $
 *
 * @author Chuck Burdick
 */
public class TestTreeBag extends AbstractTestBag {
    
   public TestTreeBag(String testName) {
      super(testName);
   }

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

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

   public Bag makeBag() {
      return new TreeBag();
   }

   public SortedBag setupBag() {
      SortedBag bag = (SortedBag)makeBag();
      bag.add("C");
      bag.add("A");
      bag.add("B");
      bag.add("D");
      return bag;
   }

   public void testOrdering() {
      Bag bag = setupBag();
      assertEquals("Should get elements in correct order",
                   "A", bag.toArray()[0]);
      assertEquals("Should get elements in correct order",
                   "B", bag.toArray()[1]);
      assertEquals("Should get elements in correct order",
                   "C", bag.toArray()[2]);
      assertEquals("Should get first key",
                   "A", ((SortedBag)bag).first());
      assertEquals("Should get last key",
                   "D", ((SortedBag)bag).last());
   }
}