1   /*
2    * $Header: /home/projects/jaxen/scm/jaxen/src/java/test/org/jaxen/dom/XPathTest.java,v 1.17 2005/05/06 17:21:25 elharo Exp $
3    * $Revision: 1.17 $
4    * $Date: 2005/05/06 17:21:25 $
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 1.17 2005/05/06 17:21:25 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         DOMXPath xpath = new DOMXPath( "/foo/bar/baz" );
104         assertEquals("/foo/bar/baz", xpath.toString());
105     }
106     
107     public void testConstructionWithNamespacePrefix() throws JaxenException
108     {
109         DOMXPath xpath = new DOMXPath( "/p:foo/p:bar/a:baz" );
110         assertEquals("/p:foo/p:bar/a:baz", xpath.toString());
111     }
112     
113     public void testNamespaceDeclarationsAreNotAttributes() 
114       throws JaxenException {
115         
116         Element root = doc.createElementNS("http://www.example.org/", "root");
117         doc.appendChild(root);
118         root.setAttributeNS("http://www.w3.org/2000/xmlns/", "xmlns", "http://www.example.org/");
119         
120         DOMXPath xpath = new DOMXPath( "count(/*/@*)" );
121         
122         Number value = xpath.numberValueOf(doc);
123         assertEquals(0, value.intValue());
124         
125     }
126 
127     // Jaxen-54
128     public void testUpdateDOMNodesReturnedBySelectNodes() 
129       throws JaxenException {
130         
131         Element root = doc.createElementNS("http://www.example.org/", "root");
132         doc.appendChild(root);
133         root.appendChild(doc.createComment("data"));
134         
135         DOMXPath xpath = new DOMXPath( "//comment()" );
136         
137         List results = xpath.selectNodes(doc);
138         Node backroot = (Node) results.get(0);
139         backroot.setNodeValue("test");
140         assertEquals("test", backroot.getNodeValue());
141         
142     }
143 
144     public void testSelection() throws JaxenException, ParserConfigurationException, SAXException, IOException
145     {
146         XPath xpath = new DOMXPath( "/foo/bar/baz" );
147 
148         DocumentBuilder builder = factory.newDocumentBuilder();
149     
150         Document doc = builder.parse( BASIC_XML );
151 
152         List results = xpath.selectNodes( doc );
153 
154         assertEquals( 3,
155                       results.size() );
156 
157         Iterator iter = results.iterator();
158 
159         assertEquals( "baz",
160                       ((Element)iter.next()).getLocalName() );
161 
162         assertEquals( "baz",
163                       ((Element)iter.next()).getLocalName() );
164 
165         assertEquals( "baz",
166                       ((Element)iter.next()).getLocalName() );
167 
168         assertTrue( ! iter.hasNext() );
169 
170     }
171     
172     // Jaxen-22
173     public void testPrecedingAxisWithPositionalPredicate() 
174       throws JaxenException, ParserConfigurationException, SAXException, IOException {
175         
176         XPath xpath = new DOMXPath( "//c/preceding::*[1][name()='d']" );
177         DocumentBuilder builder = factory.newDocumentBuilder();
178     
179         Document doc = builder.parse( "xml/web2.xml" );
180         List result = xpath.selectNodes(doc);
181         assertEquals(1, result.size());
182         
183     }
184     
185      
186     // Jaxen-22
187     public void testJaxen22() 
188       throws JaxenException, ParserConfigurationException, SAXException, IOException {
189         
190         XPath xpath = new DOMXPath( "name(//c/preceding::*[1])" );
191         DocumentBuilder builder = factory.newDocumentBuilder();
192     
193         doc = builder.parse("xml/web2.xml");
194         Object result = xpath.evaluate(doc);
195         assertEquals("d", result);
196     }
197     
198      
199     public void testPrecedingAxisInDocumentOrder() 
200       throws JaxenException {
201         
202         XPath xpath = new DOMXPath( "preceding::*" );
203     
204         Element root = doc.createElement("root");
205         doc.appendChild(root);
206         
207         Element a = doc.createElement("a");
208         root.appendChild(a);
209         Element b = doc.createElement("b");
210         root.appendChild(b);
211         Element c = doc.createElement("c");
212         a.appendChild(c);
213         
214         List result = xpath.selectNodes(b);
215         assertEquals(2, result.size());
216         assertEquals(a, result.get(0));
217         assertEquals(c, result.get(1));
218     }
219     
220      
221 }