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.io.IOException;
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.XPath;
76  import org.jaxen.dom.DOMXPath;
77  import org.w3c.dom.Document;
78  import org.xml.sax.SAXException;
79  
80  /***
81   * @author Elliotte Rusty Harold
82   *
83   */
84  public class SubstringBeforeTest extends TestCase {
85  
86      private Document doc;
87      
88      public void setUp() throws ParserConfigurationException, SAXException, IOException
89      {
90          DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
91          factory.setNamespaceAware(true);
92          DocumentBuilder builder = factory.newDocumentBuilder();
93          doc = builder.newDocument();
94          doc.appendChild(doc.createElement("root"));
95      }
96  
97  
98      public SubstringBeforeTest(String name) {
99          super(name);
100     }
101 
102     public void testSubstringBeforeNumber() throws JaxenException
103     {
104         XPath xpath = new DOMXPath( "substring-before(33, '3')" );
105         String result = (String) xpath.evaluate( doc );
106         assertEquals("", result);
107     }    
108   
109     public void testSubstringBeforeString() throws JaxenException
110     {
111         XPath xpath = new DOMXPath( "substring-before('test', 'es')" );
112         String result = (String) xpath.evaluate( doc );
113         assertEquals("t", result);
114     }    
115   
116     public void testContainsString3() throws JaxenException
117     {
118         XPath xpath = new DOMXPath( "substring-before('superlative', 'superlative')" );
119         String result = (String) xpath.evaluate( doc );
120         assertEquals("", result);
121     }    
122   
123     public void testSubstringBeforeNumber2() throws JaxenException
124     {
125         XPath xpath = new DOMXPath( "substring-before(43, '0')" );
126         String result = (String) xpath.evaluate( doc );
127         assertEquals("", result);
128     }    
129   
130     public void testSubstringBeforeString2() throws JaxenException
131     {
132         XPath xpath = new DOMXPath( "substring-before('1234567890', '1234567a')" );
133         String result = (String) xpath.evaluate( doc );
134         assertEquals("", result);
135     }    
136   
137   
138     public void testSubstringBeforeString3() throws JaxenException
139     {
140         XPath xpath = new DOMXPath( "substring-before('1234567890', '456')" );
141         String result = (String) xpath.evaluate( doc );
142         assertEquals("123", result);
143     }    
144   
145   
146     public void testEmptyStringSubstringBeforeNonEmptyString() throws JaxenException
147     {
148         XPath xpath = new DOMXPath( "substring-before('', 'a')" );
149         String result = (String) xpath.evaluate( doc );
150         assertEquals("", result);
151     }
152   
153     public void testEmptyStringBeforeEmptyString() throws JaxenException
154     {
155         XPath xpath = new DOMXPath( "substring-before('', '')" );
156         String result = (String) xpath.evaluate( doc );
157         assertEquals("", result);
158     }
159   
160     public void testSubstringBeforeEmptyString() throws JaxenException
161     {
162         XPath xpath = new DOMXPath( "substring-before('a', '')" );
163         String result = (String) xpath.evaluate( doc );
164         assertEquals("", result);
165     }    
166   
167     public void testSubstringBeforeFunctionRequiresAtLeastTwoArguments() 
168       throws JaxenException {
169         
170         BaseXPath xpath = new DOMXPath("substring-before('a')");
171         
172         try {
173             xpath.selectNodes(doc);
174             fail("Allowed substring-before function with one argument");
175         }
176         catch (FunctionCallException ex) {
177             assertNotNull(ex.getMessage());
178         }
179         
180     }    
181 
182     public void testContainsFunctionRequiresAtMostTwoArguments() 
183       throws JaxenException {
184         
185         BaseXPath xpath = new DOMXPath("substring-before('a', 'a', 'a')");
186         
187         try {
188             xpath.selectNodes(doc);
189             fail("Allowed substring-before function with three arguments");
190         }
191         catch (FunctionCallException ex) {
192             assertNotNull(ex.getMessage());
193         }
194         
195     }    
196 
197 }