Commons Digester example source code file (ObjectParamRuleTestCase.java)

This example Commons Digester source code file (ObjectParamRuleTestCase.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 Digester tags/keywords

after, digester, digester, integer, integer, io, ioexception, long, objectparamrule, objectparamrule, objectparamruletestcase, sax, saxexception, string, string, stringbuffer, util

The Commons Digester ObjectParamRuleTestCase.java source code

/* $Id: ObjectParamRuleTestCase.java 992060 2010-09-02 19:09:47Z simonetripodi $
 *
 * 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.digester;


import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertTrue;

import java.io.IOException;
import java.io.StringReader;
import java.util.ArrayList;

import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.xml.sax.SAXException;


/**
 * <p>Tests for the ObjectParamRuleTestCase
 *
 * @author Mark Huisman
 */
public class ObjectParamRuleTestCase {


    // ----------------------------------------------------- Instance Variables


    /**
     * The digester instance we will be processing.
     */
    protected Digester digester = null;


    // --------------------------------------------------- Overall Test Methods


    /**
     * Set up instance variables required by this test case.
     */
    @Before
    public void setUp() {

        digester = new Digester();

    }


    /**
     * Tear down instance variables required by this test case.
     */
    @After
    public void tearDown() {

        digester = null;

    }



    // ------------------------------------------------ Individual Test Methods

    private StringBuffer sb = new StringBuffer().
        append("<arraylist>");


    /**
     * Test method calls with the ObjectParamRule rule.  It should be possible to
     * pass any subclass of Object as a parameter, provided that either the element
     * or the element + attribute has been matched.
     */
    @Test
    public void testBasic() throws SAXException, IOException {

        // Configure the digester as required
        digester.addObjectCreate("arraylist", ArrayList.class);

        // Test adding a variety of objects
        digester.addCallMethod("arraylist/A", "add", 1);
        ObjectParamRule opr = new ObjectParamRule(0, new Integer(-9));
        digester.addRule("arraylist/A", opr);
        digester.addCallMethod("arraylist/B", "add", 1);
        opr = new ObjectParamRule(0, new Float(3.14159));
        digester.addRule("arraylist/B", opr);
        digester.addCallMethod("arraylist/C", "add", 1);
        opr = new ObjectParamRule(0, new Long(999999999));
        digester.addRule("arraylist/C", opr);
        digester.addCallMethod("arraylist/D", "add", 1);
        opr = new ObjectParamRule(0, "desc", new String("foobarbazbing"));
        digester.addRule("arraylist/D", opr);
        // note that this will add a null parameter to the method call and will
        // not be added to the arraylist.
        digester.addCallMethod("arraylist/E", "add", 1);
        opr = new ObjectParamRule(0, "nonexistentattribute", new String("ignore"));
        digester.addRule("arraylist/E", opr);

        //Parse it and obtain the ArrayList
        ArrayList<?> al = (ArrayList)digester.parse(new StringReader(sb.toString()));
        assertNotNull(al);
        assertEquals(al.size(), 4);
        assertTrue(al.contains(new Integer(-9)));
        assertTrue(al.contains(new Float(3.14159)));
        assertTrue(al.contains(new Long(999999999)));
        assertTrue(al.contains(new String("foobarbazbing")));
        assertTrue(!(al.contains(new String("ignore"))));
    }

}