followingaxisiteratortest.java

XML的解析、编译、查询等技术的JAVA源代码。

/* $Header$
 * $Revision$
 * $Date$
 *
 * ====================================================================
 *
 * Copyright 2005 Elliotte Rusty Harold.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 * 
 *   * Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 * 
 *   * Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in the
 *     documentation and/or other materials provided with the distribution.
 * 
 *   * Neither the name of the Jaxen Project nor the names of its
 *     contributors may be used to endorse or promote products derived 
 *     from this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
 * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * ====================================================================
 * This software consists of voluntary contributions made by many 
 * individuals on behalf of the Jaxen Project and was originally 
 * created by bob mcwhirter <[e-mail]> and 
 * James Strachan <[e-mail]>.  For more information on the 
 * Jaxen Project, please see <http://www.jaxen.org/>.
 * 
 * $Id$
 */
package org.jaxen.test;

import java.util.Iterator;
import java.util.NoSuchElementException;

import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;

import org.jaxen.UnsupportedAxisException;
import org.jaxen.util.FollowingAxisIterator;
import org.w3c.dom.Document;

import junit.framework.TestCase;

public class FollowingAxisIteratorTest extends TestCase {

    private Iterator iterator;

    public FollowingAxisIteratorTest(String name) {
        super(name);
    }
    
    protected void setUp() throws ParserConfigurationException, UnsupportedAxisException {
        
        DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
        factory.setNamespaceAware(true);
        Document doc = factory.newDocumentBuilder().newDocument();
        doc.appendChild(doc.createElement("root"));
        
        iterator = new FollowingAxisIterator(doc, new org.jaxen.dom.DocumentNavigator());
        
    }
    
    
    public void testNoInfiniteLoops() {
     
        try {
            iterator.next();
            fail("Iterated too far");   
        }
        catch (NoSuchElementException ex) {
            pass();
        }
        
    }
    
    
    private void pass() {
        // Just to make checkstyle and the like happy
    }

    public void testRemove() {
        
        try {
            iterator.remove();
            fail("Removed from descendant axis iterator");   
        }
        catch (UnsupportedOperationException ex) {
            pass();
        }
        
    }
    
}