1   /*
2    * $Header: /home/projects/jaxen/scm/jaxen/src/java/test/org/jaxen/dom/XPathTest.java,v 1.14 2005/04/04 17:09:49 elharo Exp $
3    * $Revision: 1.14 $
4    * $Date: 2005/04/04 17:09:49 $
5    *
6    * ====================================================================
7    *
8    * Copyright (C) 2000-2003 bob mcwhirter & James Strachan.
9    * All rights reserved.
10   *
11   * Redistribution and use in source and binary forms, with or without
12   * modification, are permitted provided that the following conditions
13   * are met:
14   * 
15   * 1. Redistributions of source code must retain the above copyright
16   *    notice, this list of conditions, and the following disclaimer.
17   *
18   * 2. Redistributions in binary form must reproduce the above copyright
19   *    notice, this list of conditions, and the disclaimer that follows 
20   *    these conditions in the documentation and/or other materials 
21   *    provided with the distribution.
22   *
23   * 3. The name "Jaxen" must not be used to endorse or promote products
24   *    derived from this software without prior written permission.  For
25   *    written permission, please contact license@jaxen.org.
26   * 
27   * 4. Products derived from this software may not be called "Jaxen", nor
28   *    may "Jaxen" appear in their name, without prior written permission
29   *    from the Jaxen Project Management (pm@jaxen.org).
30   * 
31   * In addition, we request (but do not require) that you include in the 
32   * end-user documentation provided with the redistribution and/or in the 
33   * software itself an acknowledgement equivalent to the following:
34   *     "This product includes software developed by the
35   *      Jaxen Project (http://www.jaxen.org/)."
36   * Alternatively, the acknowledgment may be graphical using the logos 
37   * available at http://www.jaxen.org/
38   *
39   * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
40   * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
41   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
42   * DISCLAIMED.  IN NO EVENT SHALL THE Jaxen AUTHORS OR THE PROJECT
43   * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
45   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
46   * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
47   * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
48   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
49   * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
50   * SUCH DAMAGE.
51   *
52   * ====================================================================
53   * This software consists of voluntary contributions made by many 
54   * individuals on behalf of the Jaxen Project and was originally 
55   * created by bob mcwhirter <bob@werken.com> and 
56   * James Strachan <jstrachan@apache.org>.  For more information on the 
57   * Jaxen Project, please see <http://www.jaxen.org/>.
58   * 
59   * $Id: XPathTest.java,v 1.14 2005/04/04 17:09:49 elharo Exp $
60   */
61  
62  
63  package org.jaxen.dom;
64  
65  import junit.framework.TestCase;
66  
67  import javax.xml.parsers.DocumentBuilder;
68  import javax.xml.parsers.DocumentBuilderFactory;
69  import javax.xml.parsers.ParserConfigurationException;
70  
71  import java.io.IOException;
72  import java.util.Iterator;
73  import java.util.List;
74  
75  import org.jaxen.JaxenException;
76  import org.jaxen.XPath;
77  import org.w3c.dom.Document;
78  import org.w3c.dom.Element;
79  import org.w3c.dom.Node;
80  import org.xml.sax.SAXException;
81  
82  public class XPathTest extends TestCase
83  {
84  
85      private static final String BASIC_XML = "xml/basic.xml";
86  
87      public XPathTest(String name)
88      {
89          super( name );
90      }
91  
92      public void testConstruction() throws JaxenException
93      {
94          new DOMXPath( "/foo/bar/baz" );
95      }
96      
97      public void testNamespaceDeclarationsAreNotAttributes() 
98        throws ParserConfigurationException, JaxenException {
99          
100         DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
101         factory.setNamespaceAware(true);
102         Document doc = factory.newDocumentBuilder().newDocument();
103         Element root = doc.createElementNS("http://www.example.org/", "root");
104         doc.appendChild(root);
105         root.setAttributeNS("http://www.w3.org/2000/xmlns/", "xmlns", "http://www.example.org/");
106         
107         DOMXPath xpath = new DOMXPath( "count(/*/@*)" );
108         
109         Number value = xpath.numberValueOf(doc);
110         assertEquals(0, value.intValue());
111         
112     }
113 
114     // Jaxen-54
115     public void testUpdateDOMNodesReturnedBySelectNodes() 
116       throws ParserConfigurationException, JaxenException {
117         
118         DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
119         factory.setNamespaceAware(true);
120         Document doc = factory.newDocumentBuilder().newDocument();
121         Element root = doc.createElementNS("http://www.example.org/", "root");
122         doc.appendChild(root);
123         root.appendChild(doc.createComment("data"));
124         
125         DOMXPath xpath = new DOMXPath( "//comment()" );
126         
127         List results = xpath.selectNodes(doc);
128         Node backroot = (Node) results.get(0);
129         backroot.setNodeValue("test");
130         assertEquals("test", backroot.getNodeValue());
131         
132     }
133 
134     public void testSelection() throws JaxenException, ParserConfigurationException, SAXException, IOException
135     {
136         XPath xpath = new DOMXPath( "/foo/bar/baz" );
137 
138         DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
139         factory.setNamespaceAware(true);
140         DocumentBuilder builder = factory.newDocumentBuilder();
141     
142         Document doc = builder.parse( BASIC_XML );
143 
144         List results = xpath.selectNodes( doc );
145 
146         assertEquals( 3,
147                       results.size() );
148 
149         Iterator iter = results.iterator();
150 
151         assertEquals( "baz",
152                       ((Element)iter.next()).getLocalName() );
153 
154         assertEquals( "baz",
155                       ((Element)iter.next()).getLocalName() );
156 
157         assertEquals( "baz",
158                       ((Element)iter.next()).getLocalName() );
159 
160         assertTrue( ! iter.hasNext() );
161 
162     }
163      
164 }