namespacetest.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,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * 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.List;

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

import org.jaxen.JaxenException;
import org.jaxen.SimpleNamespaceContext;
import org.jaxen.UnresolvableException;
import org.jaxen.XPath;
import org.jaxen.dom.DOMXPath;
import org.w3c.dom.Attr;
import org.w3c.dom.Element;

import junit.framework.TestCase;

public class NamespaceTest extends TestCase {

    private org.w3c.dom.Document doc;

    public NamespaceTest(String name) {
        super(name);
    }
    
    protected void setUp() throws ParserConfigurationException {
        
        DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
        factory.setNamespaceAware(true);
        doc = factory.newDocumentBuilder().newDocument();
        
    }     
    
    public void testMultipleNamespaceAxis() throws JaxenException {
        
        Element root = doc.createElement("root");
        doc.appendChild(root);
        Element child = doc.createElementNS("http://www.example.org", "child");
        child.setAttributeNS("http://www.w3.org/2000/xmlns/" , "xmlns:pre", "value");
        root.appendChild(child);
        
        XPath xpath = new DOMXPath("namespace::node()");
        List result = xpath.selectNodes(child);
        assertEquals(3, result.size());
   
    }
    
    public void testNumberOfNamespaceNodes() throws JaxenException {
        
        Element root = doc.createElement("root");
        doc.appendChild(root);
        Element child = doc.createElementNS("http://www.example.org", "foo:child");
        root.appendChild(child);
        
        XPath xpath = new DOMXPath("//namespace::node()");
        List result = xpath.selectNodes(doc);
        assertEquals(3, result.size());
        // 1 for xml prefix on root; 1 for foo prefix on child; 1 for xml prefix on child
   
    }
    
    
    public void testNamespaceAxis() throws JaxenException {
        
        Element root = doc.createElement("root");
        doc.appendChild(root);
        Element child = doc.createElementNS("http://www.example.org", "foo:child");
        root.appendChild(child);
        
        XPath xpath = new DOMXPath("namespace::node()");
        List result = xpath.selectNodes(child);
        assertEquals(2, result.size());
   
    }
    
    
    public void testUnprefixedNamespaceAxis() throws JaxenException {
        
        Element root = doc.createElement("root");
        doc.appendChild(root);
        Element child = doc.createElementNS("http://www.example.org", "child");
        root.appendChild(child);
        
        XPath xpath = new DOMXPath("namespace::node()");
        List result = xpath.selectNodes(child);
        assertEquals(2, result.size());
   
    }   
    
    
    public void testNamespaceNodesReadFromAttributes() throws JaxenException {
        
        Element root = doc.createElement("root");
        doc.appendChild(root);
        Attr a = doc.createAttributeNS("http://www.example.org/", "a");
        a.setNodeValue("value");
        root.setAttributeNode(a);
        
        XPath xpath = new DOMXPath("namespace::node()");
        List result = xpath.selectNodes(root);
        // one for the xml prefix; one from the attribute node
        assertEquals(2, result.size());
   
    }   
    
    
    public void testUnboundNamespaceUsedInXPathExpression() throws JaxenException {
        
        Element root = doc.createElementNS("http://www.example.org/", "root");
        doc.appendChild(root);
        XPath xpath = new DOMXPath("/pre:root");
        try {
            xpath.selectNodes(root);
            fail("Used unresolvable prefix");
        }
        catch (UnresolvableException ex) {
            assertNotNull(ex.getMessage());
        }
   
    }   
    
    
    public void testQueryDefaultNamespace() throws JaxenException {
        
        Element root = doc.createElementNS("http://www.example.org/", "root");
        doc.appendChild(root);
        XPath xpath = new DOMXPath("/pre:root");
        xpath.addNamespace("pre", "http://www.example.org/");
        List result = xpath.selectNodes(root);
        assertEquals(1, result.size());
   
    }   
    
    
    public void testQueryDefaultNamespaceWithContext() throws JaxenException {
        
        Element root = doc.createElementNS("http://www.example.org/", "root");
        doc.appendChild(root);
        XPath xpath = new DOMXPath("/pre:root");
        SimpleNamespaceContext context = new SimpleNamespaceContext();
        context.addNamespace("pre", "http://www.example.org/");
        xpath.setNamespaceContext(context);
        List result = xpath.selectNodes(root);
        assertEquals(1, result.size());
   
    }   
    
    
}