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  package org.jaxen.test;
49  
50  import java.util.List;
51  
52  import javax.xml.parsers.DocumentBuilder;
53  import javax.xml.parsers.DocumentBuilderFactory;
54  import javax.xml.parsers.ParserConfigurationException;
55  
56  import junit.framework.TestCase;
57  
58  import org.jaxen.BaseXPath;
59  import org.jaxen.FunctionCallException;
60  import org.jaxen.JaxenException;
61  import org.jaxen.dom.DOMXPath;
62  import org.w3c.dom.Document;
63  
64  /***
65   * @author Elliotte Rusty Harold
66   *
67   */
68  public class LastTest extends TestCase {
69  
70      private Document doc;
71      
72      public void setUp() throws ParserConfigurationException
73      {
74          DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
75          factory.setNamespaceAware(true);
76          DocumentBuilder builder = factory.newDocumentBuilder();
77          doc = builder.newDocument();
78      }
79  
80  
81      public LastTest(String name) {
82          super(name);
83      }
84  
85      // test case for JAXEN-55
86      public void testLastFunction() 
87        throws JaxenException {
88          
89          BaseXPath xpath = new DOMXPath("//x[position()=last()]");
90          org.w3c.dom.Element a = doc.createElementNS("", "a");
91          org.w3c.dom.Element b = doc.createElementNS("", "b");
92          doc.appendChild(a);
93          a.appendChild(b);
94          org.w3c.dom.Element x2 = doc.createElementNS("", "x");
95          org.w3c.dom.Element x3 = doc.createElementNS("", "x");
96          org.w3c.dom.Element x4 = doc.createElementNS("", "x");
97          a.appendChild(x4);
98          b.appendChild(x2);
99          b.appendChild(x3);
100         x2.appendChild(doc.createTextNode("2"));
101         x3.appendChild(doc.createTextNode("3"));
102         x4.appendChild(doc.createTextNode("4"));
103         
104         List result = xpath.selectNodes(doc);
105         assertEquals(2, result.size());
106         assertEquals(x3, result.get(0));
107         assertEquals(x4, result.get(1));
108         
109     }    
110 
111     public void testLastFunctionAllowsNoArguments() throws JaxenException
112     {
113         try
114         {
115             BaseXPath xpath = new DOMXPath("//x[position()=last(.)]");
116             org.w3c.dom.Element a = doc.createElementNS("", "a");
117             org.w3c.dom.Element b = doc.createElementNS("", "b");
118             doc.appendChild(a);
119             a.appendChild(b);
120             org.w3c.dom.Element x2 = doc.createElementNS("", "x");
121             org.w3c.dom.Element x3 = doc.createElementNS("", "x");
122             org.w3c.dom.Element x4 = doc.createElementNS("", "x");
123             a.appendChild(x4);
124             b.appendChild(x2);
125             b.appendChild(x3);
126             x2.appendChild(doc.createTextNode("2"));
127             x3.appendChild(doc.createTextNode("3"));
128             x4.appendChild(doc.createTextNode("4"));
129        
130             xpath.selectNodes(doc);
131             fail("last() function took arguments");
132         }
133         catch (FunctionCallException e) 
134         {
135             assertEquals("last() requires no arguments.", e.getMessage());
136         }
137     }    
138 
139     
140     
141     
142 }