1 /*
2 * $Header$
3 * $Revision$
4 * $Date$
5 *
6 * ====================================================================
7 *
8 * Copyright (C) 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
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 * $Id$
60 */
61
62 package org.jaxen.function;
63
64 import java.util.List;
65
66 import javax.xml.parsers.DocumentBuilder;
67 import javax.xml.parsers.DocumentBuilderFactory;
68 import javax.xml.parsers.ParserConfigurationException;
69
70 import junit.framework.TestCase;
71
72 import org.jaxen.BaseXPath;
73 import org.jaxen.FunctionCallException;
74 import org.jaxen.JaxenException;
75 import org.jaxen.dom.DOMXPath;
76 import org.w3c.dom.Document;
77
78 /***
79 * @author Elliotte Rusty Harold
80 *
81 */
82 public class NotTest extends TestCase {
83
84 private Document doc;
85
86 public void setUp() throws ParserConfigurationException
87 {
88 DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
89 factory.setNamespaceAware(true);
90 DocumentBuilder builder = factory.newDocumentBuilder();
91 doc = builder.newDocument();
92 doc.appendChild(doc.createElement("root"));
93 }
94
95
96 public NotTest(String name) {
97 super(name);
98 }
99
100 public void testZeroIsFalse()
101 throws JaxenException {
102
103 BaseXPath xpath = new DOMXPath("not(0)");
104
105 List result = xpath.selectNodes(doc);
106 assertEquals(1, result.size());
107 assertEquals(Boolean.TRUE, result.get(0));
108
109 }
110
111 public void testOneIsTrue()
112 throws JaxenException {
113
114 BaseXPath xpath = new DOMXPath("not(1)");
115
116 List result = xpath.selectNodes(doc);
117 assertEquals(1, result.size());
118 assertEquals(Boolean.FALSE, result.get(0));
119
120 }
121
122 public void testEmptyStringIsFalse()
123 throws JaxenException {
124
125 BaseXPath xpath = new DOMXPath("not('')");
126
127 List result = xpath.selectNodes(doc);
128 assertEquals(1, result.size());
129 assertEquals(Boolean.TRUE, result.get(0));
130
131 }
132
133 public void testNaNIsFalse()
134 throws JaxenException {
135
136 BaseXPath xpath = new DOMXPath("not(0 div 0)");
137 Object result = xpath.evaluate(null);
138 assertEquals(Boolean.TRUE, result);
139
140 }
141
142 public void testNonEmptyStringIsTrue()
143 throws JaxenException {
144
145 BaseXPath xpath = new DOMXPath("not('false')");
146
147 List result = xpath.selectNodes(doc);
148 assertEquals(1, result.size());
149 assertEquals(Boolean.FALSE, result.get(0));
150
151 }
152
153 public void testNotFunctionRequiresOneArgument()
154 throws JaxenException {
155
156 BaseXPath xpath = new DOMXPath("not()");
157
158 try {
159 xpath.selectNodes(doc);
160 fail("Allowed not() function with no arguments");
161 }
162 catch (FunctionCallException ex) {
163 assertNotNull(ex.getMessage());
164 }
165
166 }
167
168 public void testNotFunctionRequiresExactlyOneArgument()
169 throws JaxenException {
170
171 BaseXPath xpath = new DOMXPath("not('', '')");
172
173 try {
174 xpath.selectNodes(doc);
175 fail("Allowed not() function with two arguments");
176 }
177 catch (FunctionCallException ex) {
178 assertNotNull(ex.getMessage());
179 }
180
181 }
182
183 }