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  import java.util.List;
66  
67  import javax.xml.parsers.DocumentBuilder;
68  import javax.xml.parsers.DocumentBuilderFactory;
69  import javax.xml.parsers.ParserConfigurationException;
70  
71  import junit.framework.TestCase;
72  
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.Attr;
78  import org.w3c.dom.Document;
79  import org.w3c.dom.ProcessingInstruction;
80  import org.w3c.dom.Text;
81  import org.xml.sax.SAXException;
82  
83  /***
84   * @author Elliotte Rusty Harold
85   *
86   */
87  public class NamespaceURITest extends TestCase {
88  
89      private Document doc;
90      
91      public void setUp() throws ParserConfigurationException, SAXException, IOException
92      {
93          DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
94          factory.setNamespaceAware(true);
95          DocumentBuilder builder = factory.newDocumentBuilder();
96          doc = builder.parse( "xml/basic.xml" );
97      }
98  
99  
100     public NamespaceURITest(String name) {
101         super(name);
102     }
103 
104     public void testNamespaceURIOfNumber() throws JaxenException
105     {
106         try
107         {
108             XPath xpath = new DOMXPath( "namespace-uri(3)" );
109             xpath.selectNodes( doc );
110             fail("namespace-uri of non-node-set");
111         }
112         catch (FunctionCallException e) 
113         {
114            assertEquals("The argument to the namespace-uri function must be a node-set", e.getMessage());
115         }
116     }    
117 
118     public void testNamespaceURINoArguments() throws JaxenException
119     {
120         XPath xpath = new DOMXPath( "namespace-uri()" );
121         List results = xpath.selectNodes( doc );
122         assertEquals("", results.get(0));
123     }    
124     
125     public void testNamespaceURIOfEmptyNodeSetIsEmptyString() throws JaxenException
126     {
127         XPath xpath = new DOMXPath( "namespace-uri(/aaa)" );
128         String result = (String) xpath.evaluate(doc);
129         assertEquals("", result);
130     }    
131 
132     public void testNamespaceURIOfProcessingInstructionIsEmptyString() throws JaxenException
133     {
134         XPath xpath = new DOMXPath( "namespace-uri(/processing-instruction())" );
135         ProcessingInstruction pi = doc.createProcessingInstruction("target", "value");
136         doc.appendChild(pi);
137         String result = (String) xpath.evaluate(doc);
138         assertEquals("", result);
139     }    
140 
141     public void testNamespaceURIOfAttribute() throws JaxenException
142     {
143         XPath xpath = new DOMXPath( "namespace-uri(/*/@*)" );
144         Attr a = doc.createAttribute("name");
145         doc.getDocumentElement().setAttributeNode(a);
146         Object result = (String) xpath.evaluate(doc);
147         assertEquals("", result);
148     }    
149 
150     public void testNamespaceURIOfTextIsEmptyString() throws JaxenException
151     {
152         XPath xpath = new DOMXPath( "namespace-uri(/*/text())" );
153         Text c = doc.createTextNode("test");
154         doc.getDocumentElement().appendChild(c);
155         String result = (String) xpath.evaluate(doc);
156         assertEquals("", result);
157     }    
158 
159     public void testNamespaceURIRequiresAtMostOneArgument() throws JaxenException
160     {
161         XPath xpath = new DOMXPath( "namespace-uri(/*, /*)" );
162         try {
163             xpath.evaluate(doc);
164             fail("Allowed namespace-uri function with no arguments");
165         }
166         catch (FunctionCallException ex) {
167             assertNotNull(ex.getMessage());
168         }
169     }    
170 
171     public void testNamespaceURIOfNamespaceIsNull() throws JaxenException
172     {
173         XPath xpath = new DOMXPath( "namespace-uri(/*/namespace::node())" );
174         String result = (String) xpath.evaluate(doc);
175         assertEquals("", result);
176     }    
177 }