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Java > Open Source Codes > org > dom4j > XPathTest


1 /*
2  * Copyright 2001-2005 (C) MetaStuff, Ltd. All Rights Reserved.
3  *
4  * This software is open source.
5  * See the bottom of this file for the licence.
6  */

7
8 package org.dom4j;
9
10 import junit.textui.TestRunner;
11
12 import java.util.List JavaDoc;
13
14 import org.dom4j.tree.DefaultElement;
15 import org.dom4j.xpath.DefaultXPath;
16
17 /**
18  * A test harness to test XPath expression evaluation in DOM4J
19  *
20  * @author <a HREF="mailto:james.strachan@metastuff.com">James Strachan </a>
21  * @version $Revision: 1.4 $
22  */

23 public class XPathTest extends AbstractTestCase {
24     protected static String JavaDoc[] paths = {
25             ".",
26             "*",
27             "/",
28             "/.",
29             "/*",
30             "/node()",
31             "/child::node()",
32             "/self::node()",
33             "root",
34             "/root",
35             "/root/author",
36             "text()",
37             "//author",
38             "//author/text()",
39             "//@location",
40             "//attribute::*",
41             "//namespace::*",
42             "normalize-space(/root)",
43             "//author[@location]",
44             "//author[@location='UK']",
45             "root|author",
46             "//*[.='James Strachan']",
47             "//root/author[1]",
48             "normalize-space(/root/author)",
49             "normalize-space(' a b c d ')",
50             "//root|//author[1]|//author[2]",
51             "//root/author[2]",
52             "//root/author[3]"};
53
54     public static void main(String JavaDoc[] args) {
55         TestRunner.run(XPathTest.class);
56     }
57
58     // Test case(s)
59
// -------------------------------------------------------------------------
60
public void testBug1116471() throws Exception JavaDoc {
61         String JavaDoc xml = "<a><b>Water T &amp; D-46816</b></a>";
62         String JavaDoc expected = "Water T & D-46816";
63
64         Document doc = DocumentHelper.parseText(xml);
65         String JavaDoc result = (String JavaDoc) doc.selectObject("string(a/b[1])");
66         
67         assertEquals("xpath result not correct", expected, result);
68         
69         Node node = doc.selectSingleNode("a/b");
70         String JavaDoc result2 = node.getStringValue();
71         
72         assertEquals("xpath result not correct", expected, result2);
73     }
74     
75     public void testXPaths() throws Exception JavaDoc {
76         int size = paths.length;
77
78         for (int i = 0; i < size; i++) {
79             testXPath(paths[i]);
80         }
81     }
82
83     public void testCreateXPathBug() throws Exception JavaDoc {
84         Element element = new DefaultElement("foo");
85         XPath xpath = element.createXPath("//bar");
86
87         assertTrue(("created a valid XPath: " + xpath) != null);
88     }
89
90     public void testBug857704() throws Exception JavaDoc {
91         Document doc = DocumentHelper
92                 .parseText("<foo xmlns:bar='http://blort'/>");
93         doc.selectNodes("//*[preceding-sibling::*]"); // shouldn't throw NPE
94
}
95
96     public void testBooleanValueOf() throws Exception JavaDoc {
97         Document doc = DocumentHelper.parseText("<root><foo>blah</foo></root>");
98
99         XPath path = new DefaultXPath("//root");
100         assertTrue(path.booleanValueOf(doc));
101
102         path = new DefaultXPath("//root2");
103         assertFalse(path.booleanValueOf(doc));
104     }
105
106     // Implementation methods
107
// -------------------------------------------------------------------------
108
protected void testXPath(String JavaDoc xpathExpression) {
109         log("Searched path: " + xpathExpression);
110
111         XPath xpath = DocumentHelper.createXPath(xpathExpression);
112
113         List JavaDoc list = xpath.selectNodes(document);
114
115         if (list == null) {
116             log("null");
117         } else {
118             log("[");
119
120             for (int i = 0, size = list.size(); i < size; i++) {
121                 Object JavaDoc object = list.get(i);
122
123                 String JavaDoc text = "null";
124
125                 if (object instanceof Node) {
126                     Node node = (Node) object;
127
128                     text = node.asXML();
129                 } else if (object != null) {
130                     text = object.toString();
131                 }
132
133                 log(" " + text);
134             }
135
136             log("]");
137         }
138
139         log("...........................................");
140     }
141 }
142
143 /*
144  * Redistribution and use of this software and associated documentation
145  * ("Software"), with or without modification, are permitted provided that the
146  * following conditions are met:
147  *
148  * 1. Redistributions of source code must retain copyright statements and
149  * notices. Redistributions must also contain a copy of this document.
150  *
151  * 2. Redistributions in binary form must reproduce the above copyright notice,
152  * this list of conditions and the following disclaimer in the documentation
153  * and/or other materials provided with the distribution.
154  *
155  * 3. The name "DOM4J" must not be used to endorse or promote products derived
156  * from this Software without prior written permission of MetaStuff, Ltd. For
157  * written permission, please contact dom4j-info@metastuff.com.
158  *
159  * 4. Products derived from this Software may not be called "DOM4J" nor may
160  * "DOM4J" appear in their names without prior written permission of MetaStuff,
161  * Ltd. DOM4J is a registered trademark of MetaStuff, Ltd.
162  *
163  * 5. Due credit should be given to the DOM4J Project - http://www.dom4j.org
164  *
165  * THIS SOFTWARE IS PROVIDED BY METASTUFF, LTD. AND CONTRIBUTORS ``AS IS'' AND
166  * ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
167  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
168  * ARE DISCLAIMED. IN NO EVENT SHALL METASTUFF, LTD. OR ITS CONTRIBUTORS BE
169  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
170  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
171  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
172  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
173  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
174  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
175  * POSSIBILITY OF SUCH DAMAGE.
176  *
177  * Copyright 2001-2005 (C) MetaStuff, Ltd. All Rights Reserved.
178  */

179
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