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;
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[] args) {
24          TestRunner.run(BackedListTest.class);
25      }
26  
27      // Test case(s)
28      // -------------------------------------------------------------------------
29      public void testXPaths() throws Exception {
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 {
37          Element parentElement = (Element) document.selectSingleNode("/root");
38          List 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 {
51          DocumentFactory factory = DocumentFactory.getInstance();
52  
53          Element root = (Element) document.selectSingleNode("/root");
54          List 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 {
87          DocumentFactory factory = DocumentFactory.getInstance();
88  
89          List list = element.elements();
90          list.add(factory.createElement("last"));
91          list.add(0, factory.createElement("first"));
92  
93          List 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  */