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 javax.xml.parsers.DocumentBuilder;
65 import javax.xml.parsers.DocumentBuilderFactory;
66 import javax.xml.parsers.ParserConfigurationException;
67
68 import junit.framework.TestCase;
69
70 import org.jaxen.BaseXPath;
71 import org.jaxen.FunctionCallException;
72 import org.jaxen.JaxenException;
73 import org.jaxen.XPath;
74 import org.jaxen.dom.DOMXPath;
75 import org.w3c.dom.Document;
76
77 /***
78 * @author Elliotte Rusty Harold
79 *
80 */
81 public class StringLengthTest extends TestCase {
82
83 private Document doc;
84
85 public void setUp() throws ParserConfigurationException
86 {
87 DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
88 factory.setNamespaceAware(true);
89 DocumentBuilder builder = factory.newDocumentBuilder();
90 doc = builder.newDocument();
91 doc.appendChild(doc.createElement("root"));
92 }
93
94
95 public StringLengthTest(String name) {
96 super(name);
97 }
98
99 public void testStringLengthOfNumber() throws JaxenException
100 {
101 XPath xpath = new DOMXPath( "string-length(3)" );
102 Double result = (Double) xpath.evaluate( doc );
103 assertEquals(1, result.intValue());
104 }
105
106 public void testStringLengthOfEmptyString() throws JaxenException
107 {
108 XPath xpath = new DOMXPath( "string-length('')" );
109 Double result = (Double) xpath.evaluate( doc );
110 assertEquals(0, result.intValue());
111 }
112
113 public void testStringLengthOfString() throws JaxenException
114 {
115 XPath xpath = new DOMXPath( "string-length('0123456789')" );
116 Double result = (Double) xpath.evaluate( doc );
117 assertEquals(10, result.intValue());
118 }
119
120 public void testStringLengthFunctionOperatesOnContextNode()
121 throws JaxenException {
122
123 BaseXPath xpath = new DOMXPath("string-length()");
124 Double result = (Double) xpath.evaluate( doc );
125 assertEquals(0, result.intValue());
126
127 }
128
129 public void testStringLengthFunctionCountsUnicodeCharactersNotJavaChars()
130 throws JaxenException {
131
132 BaseXPath xpath = new DOMXPath("string-length('\uD834\uDD00')");
133 Double result = (Double) xpath.evaluate( doc );
134 assertEquals(1, result.intValue());
135
136 }
137
138 public void testStringLengthFunctionWithMalformedString()
139 throws JaxenException {
140
141 BaseXPath xpath = new DOMXPath("string-length('\uD834A\uDD00')");
142 try {
143 xpath.evaluate( doc );
144 fail("Allowed Malformed string");
145 }
146 catch (FunctionCallException ex) {
147 assertNotNull(ex.getMessage());
148 }
149
150 }
151
152 public void testStringLengthFunctionRequiresExactlyOneArgument()
153 throws JaxenException {
154
155 BaseXPath xpath = new DOMXPath("string-length('', '')");
156
157 try {
158 xpath.selectNodes(doc);
159 fail("Allowed string-length function with two arguments");
160 }
161 catch (FunctionCallException ex) {
162 assertNotNull(ex.getMessage());
163 }
164
165 }
166
167 }