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 }