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Java > Open Source Codes > org > dom4j > BackedListTest


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.io.XMLWriter;
15
16 /**
17  * A test harness to test the backed list feature of DOM4J
18  *
19  * @author <a HREF="mailto:james.strachan@metastuff.com">James Strachan </a>
20  * @version $Revision: 1.3 $
21  */
22 public class BackedListTest extends AbstractTestCase {
23     public static void main(String JavaDoc[] args) {
24         TestRunner.run(BackedListTest.class);
25     }
26
27     // Test case(s)
28 // -------------------------------------------------------------------------
29 public void testXPaths() throws Exception JavaDoc {
30         Element element = (Element) document.selectSingleNode("/root");
31         mutate(element);
32         element = (Element) document.selectSingleNode("//author");
33         mutate(element);
34     }
35
36     public void testAddRemove() throws Exception JavaDoc {
37         Element parentElement = (Element) document.selectSingleNode("/root");
38         List JavaDoc children = parentElement.elements();
39         int lastPos = children.size() - 1;
40         Element child = (Element) children.get(lastPos);
41
42         try {
43             // should throw an exception cause we cannot add same child twice
44 children.add(0, child);
45             fail();
46         } catch (IllegalAddException e) {
47         }
48     }
49
50     public void testAddWithIndex() throws Exception JavaDoc {
51         DocumentFactory factory = DocumentFactory.getInstance();
52
53         Element root = (Element) document.selectSingleNode("/root");
54         List JavaDoc children = root.elements(); // return a list of 2 author
55 // elements
56
57         assertEquals(2, children.size());
58
59         children.add(1, factory.createElement("dummy1"));
60         children = root.elements();
61
62         assertEquals(3, children.size());
63
64         children = root.elements("author");
65
66         assertEquals(2, children.size());
67
68         children.add(1, factory.createElement("dummy2"));
69
70         children = root.elements();
71
72         assertEquals(4, children.size());
73         assertEquals("dummy1", ((Node) children.get(1)).getName());
74         assertEquals("dummy2", ((Node) children.get(2)).getName());
75
76         /*
77          * Some tests for issue reported at http://tinyurl.com/4jxrc
78          */
79         children.add(children.size(), factory.createElement("dummy3"));
80         children = root.elements("author");
81         children.add(children.size(), factory.createElement("dummy4"));
82     }
83
84     // Implementation methods
85 // -------------------------------------------------------------------------
86 protected void mutate(Element element) throws Exception JavaDoc {
87         DocumentFactory factory = DocumentFactory.getInstance();
88
89         List JavaDoc list = element.elements();
90         list.add(factory.createElement("last"));
91         list.add(0, factory.createElement("first"));
92
93         List JavaDoc list2 = element.elements();
94
95         assertTrue("Both lists should contain same number of elements", list
96                 .size() == list2.size());
97
98         XMLWriter writer = new XMLWriter(System.out);
99
100         log("Element content is now: " + element.content());
101         writer.write(element);
102     }
103 }
104
105 /*
106  * Redistribution and use of this software and associated documentation
107  * ("Software"), with or without modification, are permitted provided that the
108  * following conditions are met:
109  *
110  * 1. Redistributions of source code must retain copyright statements and
111  * notices. Redistributions must also contain a copy of this document.
112  *
113  * 2. Redistributions in binary form must reproduce the above copyright notice,
114  * this list of conditions and the following disclaimer in the documentation
115  * and/or other materials provided with the distribution.
116  *
117  * 3. The name "DOM4J" must not be used to endorse or promote products derived
118  * from this Software without prior written permission of MetaStuff, Ltd. For
119  * written permission, please contact dom4j-info@metastuff.com.
120  *
121  * 4. Products derived from this Software may not be called "DOM4J" nor may
122  * "DOM4J" appear in their names without prior written permission of MetaStuff,
123  * Ltd. DOM4J is a registered trademark of MetaStuff, Ltd.
124  *
125  * 5. Due credit should be given to the DOM4J Project - http://www.dom4j.org
126  *
127  * THIS SOFTWARE IS PROVIDED BY METASTUFF, LTD. AND CONTRIBUTORS ``AS IS'' AND
128  * ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
129  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
130  * ARE DISCLAIMED. IN NO EVENT SHALL METASTUFF, LTD. OR ITS CONTRIBUTORS BE
131  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
132  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
133  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
134  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
135  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
136  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
137  * POSSIBILITY OF SUCH DAMAGE.
138  *
139  * Copyright 2001-2005 (C) MetaStuff, Ltd. All Rights Reserved.
140  */
141
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