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Java > Open Source Codes > org > jaxen > function > StringLengthTest


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 JavaDoc;
65 import javax.xml.parsers.DocumentBuilderFactory JavaDoc;
66 import javax.xml.parsers.ParserConfigurationException JavaDoc;
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 JavaDoc;
76
77 /**
78  * @author Elliotte Rusty Harold
79  *
80  */
81 public class StringLengthTest extends TestCase {
82
83     private Document JavaDoc doc;
84     
85     public void setUp() throws ParserConfigurationException JavaDoc
86     {
87         DocumentBuilderFactory JavaDoc factory = DocumentBuilderFactory.newInstance();
88         factory.setNamespaceAware(true);
89         DocumentBuilder JavaDoc builder = factory.newDocumentBuilder();
90         doc = builder.newDocument();
91         doc.appendChild(doc.createElement("root"));
92     }
93
94
95     public StringLengthTest(String JavaDoc name) {
96         super(name);
97     }
98
99     public void testStringLengthOfNumber() throws JaxenException
100     {
101         XPath xpath = new DOMXPath( "string-length(3)" );
102         Double JavaDoc result = (Double JavaDoc) 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 JavaDoc result = (Double JavaDoc) 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 JavaDoc result = (Double JavaDoc) 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 JavaDoc result = (Double JavaDoc) 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 JavaDoc result = (Double JavaDoc) 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 }
168
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