1   /*
2    * $Header$
3    * $Revision$
4    * $Date$
5    *
6    * ====================================================================
7    *
8    * Copyright 2005 Elliotte Rusty Harold
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 are
13   * met:
14   * 
15   *   * Redistributions of source code must retain the above copyright
16   *     notice, this list of conditions and the following disclaimer.
17   * 
18   *   * Redistributions in binary form must reproduce the above copyright
19   *     notice, this list of conditions and the following disclaimer in the
20   *     documentation and/or other materials provided with the distribution.
21   * 
22   *   * Neither the name of the Jaxen Project nor the names of its
23   *     contributors may be used to endorse or promote products derived 
24   *     from this software without specific prior written permission.
25   * 
26   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
27   * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28   * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
29   * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
30   * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
31   * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
32   * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
33   * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
34   * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
35   * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
36   * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
37   *
38   * ====================================================================
39   * This software consists of voluntary contributions made by many 
40   * individuals on behalf of the Jaxen Project and was originally 
41   * created by bob mcwhirter <bob@werken.com> and 
42   * James Strachan <jstrachan@apache.org>.  For more information on the 
43   * Jaxen Project, please see <http://www.jaxen.org/>.
44   * 
45   * $Id$
46   */
47  
48  
49  
50  package org.jaxen.test;
51  
52  import javax.xml.parsers.DocumentBuilderFactory;
53  import javax.xml.parsers.ParserConfigurationException;
54  
55  import org.jaxen.JaxenException;
56  import org.jaxen.SimpleVariableContext;
57  import org.jaxen.UnresolvableException;
58  import org.jaxen.dom.DOMXPath;
59  import org.w3c.dom.Document;
60  import org.w3c.dom.Element;
61  
62  import junit.framework.TestCase;
63  
64  /***
65   * <p>
66   *  Test for function context.
67   * </p>
68   * 
69   * @author Elliotte Rusty Harold
70   * @version 1.1b9
71   *
72   */
73  public class VariableContextTest extends TestCase
74  {
75  
76      private Document doc;
77      
78      public void setUp() throws ParserConfigurationException {
79          
80          DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
81          factory.setNamespaceAware(true);
82          doc = factory.newDocumentBuilder().newDocument();
83          Element root = doc.createElementNS("http://www.example.org/", "root");
84          doc.appendChild(root);
85          root.setAttributeNS("http://www.w3.org/2000/xmlns/", "xmlns", "http://www.example.org/");
86                
87      }
88      
89   
90      public void testUnresolvableVariable() throws JaxenException {
91          
92          DOMXPath xpath = new DOMXPath("$a/root");
93          
94          try {
95              xpath.evaluate(doc);
96              fail("Evaluated nonexistent variable");
97          }
98          catch (UnresolvableException ex) {
99              assertEquals("Variable a", ex.getMessage());
100         }
101         
102     }
103  
104     public void testGetVariableContext() throws JaxenException {      
105         DOMXPath xpath = new DOMXPath("/root/child");
106         assertNotNull(xpath.getVariableContext());
107     }
108  
109     public void testSetNamespacelessVariable() throws JaxenException { 
110         SimpleVariableContext context = new SimpleVariableContext();
111         context.setVariableValue("foo", "bar");
112         assertEquals("bar", context.getVariableValue("", "", "foo"));
113     }
114  
115 }