1   /*
2    * $Header$
3    * $Revision$
4    * $Date$
5    *
6    * ====================================================================
7    *
8    * Copyright 2000-2003 bob mcwhirter & James Strachan.
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 are
13   * met:
14   * 
15   *   * Redistributions of source code must retain the above copyright
16   *     notice, this list of conditions and the following disclaimer.
17   * 
18   *   * Redistributions in binary form must reproduce the above copyright
19   *     notice, this list of conditions and the following disclaimer in the
20   *     documentation and/or other materials provided with the distribution.
21   * 
22   *   * Neither the name of the Jaxen Project nor the names of its
23   *     contributors may be used to endorse or promote products derived 
24   *     from this software without specific prior written permission.
25   * 
26   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
27   * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28   * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
29   * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
30   * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
31   * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
32   * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
33   * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
34   * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
35   * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
36   * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
37   *
38   * ====================================================================
39   * This software consists of voluntary contributions made by many 
40   * individuals on behalf of the Jaxen Project and was originally 
41   * created by bob mcwhirter <bob@werken.com> and 
42   * James Strachan <jstrachan@apache.org>.  For more information on the 
43   * Jaxen Project, please see <http://www.jaxen.org/>.
44   * 
45   * $Id$
46   */
47  
48  
49  package org.jaxen.test;
50  
51  import junit.framework.TestCase;
52  
53  import java.io.StringReader;
54  import java.util.Iterator;
55  import java.util.List;
56  
57  import org.dom4j.Attribute;
58  import org.dom4j.Document;
59  import org.dom4j.DocumentException;
60  import org.dom4j.Element;
61  import org.dom4j.Namespace;
62  import org.dom4j.io.SAXReader;
63  import org.dom4j.tree.DefaultAttribute;
64  import org.dom4j.tree.DefaultDocument;
65  import org.dom4j.tree.DefaultElement;
66  import org.jaxen.JaxenException;
67  import org.jaxen.XPath;
68  import org.jaxen.XPathSyntaxException;
69  import org.jaxen.dom4j.Dom4jXPath;
70  import org.jaxen.saxpath.helpers.XPathReaderFactory;
71  
72  public class DOM4JXPathTest extends TestCase
73  {
74  
75      private static final String BASIC_XML = "xml/basic.xml";
76      
77      public DOM4JXPathTest(String name)
78      {
79          super( name );
80      }
81  
82      public void setUp()
83      {
84          System.setProperty( XPathReaderFactory.DRIVER_PROPERTY,
85                              "" );
86      }
87  
88      public void testConstruction() throws JaxenException
89      {
90          new Dom4jXPath( "/foo/bar/baz" );
91      }
92  
93      public void testSelection() throws JaxenException, DocumentException
94      {
95  
96          XPath xpath = new Dom4jXPath( "/foo/bar/baz" );
97          SAXReader reader = new SAXReader();
98          Document doc = reader.read( BASIC_XML );
99          List results = xpath.selectNodes( doc );
100         assertEquals( 3, results.size() );
101         Iterator iter = results.iterator();
102         assertEquals( "baz",
103                       ((Element)iter.next()).getName() );
104         assertEquals( "baz",
105                       ((Element)iter.next()).getName() );
106         assertEquals( "baz",
107                       ((Element)iter.next()).getName() );
108         assertTrue( ! iter.hasNext() );
109 
110     }
111     
112     public void testAsBoolean() throws JaxenException, DocumentException
113     {
114         XPath xpath = new Dom4jXPath( "/root/a = 'a'" );
115         SAXReader reader = new SAXReader();
116         Document doc = reader.read( "xml/simple.xml" );
117         boolean answer = xpath.booleanValueOf( doc );
118         assertTrue( "Xpath worked: " + xpath, answer );
119         xpath = new Dom4jXPath( "'a' = 'b'" );
120         answer = xpath.booleanValueOf( doc );
121         assertTrue( "XPath should return false: " + xpath, ! answer );
122     }
123     
124     public void testJaxen20AttributeNamespaceNodes() throws JaxenException
125     {
126 
127         Namespace ns1 = Namespace.get("p1", "www.acme1.org");
128         Namespace ns2 = Namespace.get("p2", "www.acme2.org");
129         Element element = new DefaultElement("test", ns1);
130         Attribute attribute = new DefaultAttribute("pre:foo", "bar", ns2);
131         element.add(attribute); 
132         Document doc = new DefaultDocument(element);
133         
134         XPath xpath = new Dom4jXPath( "//namespace::node()" );
135         List results = xpath.selectNodes( doc );
136         assertEquals( 3, results.size() );
137 
138     }
139     
140     public void testJaxen16() throws JaxenException, DocumentException
141     {
142 
143         String document = "<a xmlns:b=\"...\"/>";
144         SAXReader reader = new SAXReader();
145         Document doc = reader.read( new StringReader(document) );
146         
147         XPath xpath = new Dom4jXPath( "/a/b" );
148         List results = xpath.selectNodes( doc );
149         assertEquals( 0, results.size() );
150 
151     }
152     
153     public void testNamespaceNodesAreInherited() throws JaxenException
154     {
155             Namespace ns0 = Namespace.get("p0", "www.acme0.org");
156             Namespace ns1 = Namespace.get("p1", "www.acme1.org");
157             Namespace ns2 = Namespace.get("p2", "www.acme2.org");
158             Element element = new DefaultElement("test", ns1);
159             Attribute attribute = new DefaultAttribute("pre:foo", "bar", ns2);
160             element.add(attribute);
161             Element root = new DefaultElement("root", ns0);
162             root.add(element);
163             Document doc = new DefaultDocument(root);
164             
165             XPath xpath = new Dom4jXPath( "/*/*/namespace::node()" );
166 
167             List results = xpath.selectNodes( doc );
168 
169             assertEquals( 4,
170                           results.size() );
171     }
172     
173     public void testSyntaxException() throws JaxenException {
174         
175         String path = "/row/[some_node='val1']|[some_node='val2']";
176         try {
177             new Dom4jXPath(path);
178             fail("Allowed union of non-node-sets");
179         }
180         catch (XPathSyntaxException success) {
181             assertNotNull(success.getMessage());
182         }
183         
184     }
185     
186     
187 }