1   /*
2    * $Header: /home/projects/jaxen/scm/jaxen/src/java/test/org/jaxen/dom/XPathTest.java,v 1.15 2005/04/12 17:02:17 elharo Exp $
3    * $Revision: 1.15 $
4    * $Date: 2005/04/12 17:02:17 $
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 1.15 2005/04/12 17:02:17 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      private Document doc;
87      private DocumentBuilderFactory factory;
88  
89      public XPathTest(String name)
90      {
91          super( name );
92      }
93      
94      public void setUp() throws ParserConfigurationException {
95          factory = DocumentBuilderFactory.newInstance();
96          factory.setNamespaceAware(true);
97          doc = factory.newDocumentBuilder().newDocument();        
98      }
99      
100 
101     public void testConstruction() throws JaxenException
102     {
103         new DOMXPath( "/foo/bar/baz" );
104     }
105     
106     public void testNamespaceDeclarationsAreNotAttributes() 
107       throws ParserConfigurationException, JaxenException {
108         
109         Element root = doc.createElementNS("http://www.example.org/", "root");
110         doc.appendChild(root);
111         root.setAttributeNS("http://www.w3.org/2000/xmlns/", "xmlns", "http://www.example.org/");
112         
113         DOMXPath xpath = new DOMXPath( "count(/*/@*)" );
114         
115         Number value = xpath.numberValueOf(doc);
116         assertEquals(0, value.intValue());
117         
118     }
119 
120     // Jaxen-54
121     public void testUpdateDOMNodesReturnedBySelectNodes() 
122       throws ParserConfigurationException, JaxenException {
123         
124         Element root = doc.createElementNS("http://www.example.org/", "root");
125         doc.appendChild(root);
126         root.appendChild(doc.createComment("data"));
127         
128         DOMXPath xpath = new DOMXPath( "//comment()" );
129         
130         List results = xpath.selectNodes(doc);
131         Node backroot = (Node) results.get(0);
132         backroot.setNodeValue("test");
133         assertEquals("test", backroot.getNodeValue());
134         
135     }
136 
137     public void testSelection() throws JaxenException, ParserConfigurationException, SAXException, IOException
138     {
139         XPath xpath = new DOMXPath( "/foo/bar/baz" );
140 
141         DocumentBuilder builder = factory.newDocumentBuilder();
142     
143         Document doc = builder.parse( BASIC_XML );
144 
145         List results = xpath.selectNodes( doc );
146 
147         assertEquals( 3,
148                       results.size() );
149 
150         Iterator iter = results.iterator();
151 
152         assertEquals( "baz",
153                       ((Element)iter.next()).getLocalName() );
154 
155         assertEquals( "baz",
156                       ((Element)iter.next()).getLocalName() );
157 
158         assertEquals( "baz",
159                       ((Element)iter.next()).getLocalName() );
160 
161         assertTrue( ! iter.hasNext() );
162 
163     }
164     
165     // Jaxen-22
166     public void testPrecedingAxisWithPositionalPredicate() 
167       throws JaxenException, ParserConfigurationException, SAXException, IOException {
168         
169         XPath xpath = new DOMXPath( "//c/preceding::*[1][name()='d']" );
170         DocumentBuilder builder = factory.newDocumentBuilder();
171     
172         Document doc = builder.parse( "xml/web2.xml" );
173         List result = xpath.selectNodes(doc);
174         assertEquals(1, result.size());
175         
176     }
177     
178      
179     // Jaxen-22
180     public void testJaxen22() 
181       throws JaxenException, ParserConfigurationException, SAXException, IOException {
182         
183         XPath xpath = new DOMXPath( "name(//c/preceding::*[1])" );
184         DocumentBuilder builder = factory.newDocumentBuilder();
185     
186         doc = builder.parse("xml/web2.xml");
187         Object result = xpath.evaluate(doc);
188         assertEquals("d", result);
189     }
190     
191      
192     public void testPrecedingAxisInDocumentOrder() 
193       throws JaxenException {
194         
195         XPath xpath = new DOMXPath( "preceding::*" );
196     
197         Element root = doc.createElement("root");
198         doc.appendChild(root);
199         
200         Element a = doc.createElement("a");
201         root.appendChild(a);
202         Element b = doc.createElement("b");
203         root.appendChild(b);
204         Element c = doc.createElement("c");
205         a.appendChild(c);
206         
207         List result = xpath.selectNodes(b);
208         assertEquals(2, result.size());
209         assertEquals(a, result.get(0));
210         assertEquals(c, result.get(1));
211     }
212     
213      
214 }