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Java > Open Source Codes > org > dom4j > NullAttributesTest


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 /**
13  * Tests the use of null attribute values
14  *
15  * @author <a HREF="mailto:jstrachan@apache.org">James Strachan </a>
16  * @version $Revision: 1.3 $
17  */

18 public class NullAttributesTest extends AbstractTestCase {
19     protected DocumentFactory factory = DocumentFactory.getInstance();
20
21     protected Document document = factory.createDocument();
22
23     protected Element element = document.addElement("root");
24
25     public static void main(String JavaDoc[] args) {
26         TestRunner.run(NullAttributesTest.class);
27     }
28
29     // Test case(s)
30
// -------------------------------------------------------------------------
31
public void testStringNames() throws Exception JavaDoc {
32         element.addAttribute("foo", null);
33
34         Attribute attribute = element.attribute("foo");
35         assertTrue(attribute == null);
36
37         element.addAttribute("foo", "123");
38         attribute = element.attribute("foo");
39         assertTrue(attribute != null);
40
41         element.addAttribute("foo", null);
42         attribute = element.attribute("foo");
43         assertTrue(attribute == null);
44     }
45
46     public void testQNames() throws Exception JavaDoc {
47         QName bar = QName.get("bar");
48
49         element.addAttribute(bar, null);
50
51         Attribute attribute = element.attribute(bar);
52         assertTrue(attribute == null);
53
54         element.addAttribute(bar, "123");
55         attribute = element.attribute(bar);
56         assertTrue(attribute != null);
57
58         element.addAttribute(bar, null);
59         attribute = element.attribute(bar);
60         assertTrue(attribute == null);
61     }
62
63     public void testAttributes() throws Exception JavaDoc {
64         Attribute attribute = factory.createAttribute(element, "v", null);
65
66         assertTrue(attribute.getText() == null);
67         assertTrue(attribute.getValue() == null);
68
69         element.add(attribute);
70         attribute = element.attribute("v");
71         assertTrue(attribute == null);
72
73         attribute = factory.createAttribute(element, "v", "123");
74         element.add(attribute);
75         attribute = element.attribute("v");
76         assertTrue(attribute != null);
77
78         attribute = factory.createAttribute(element, "v", null);
79         element.add(attribute);
80         attribute = element.attribute("v");
81         assertTrue(attribute == null);
82     }
83 }
84
85 /*
86  * Redistribution and use of this software and associated documentation
87  * ("Software"), with or without modification, are permitted provided that the
88  * following conditions are met:
89  *
90  * 1. Redistributions of source code must retain copyright statements and
91  * notices. Redistributions must also contain a copy of this document.
92  *
93  * 2. Redistributions in binary form must reproduce the above copyright notice,
94  * this list of conditions and the following disclaimer in the documentation
95  * and/or other materials provided with the distribution.
96  *
97  * 3. The name "DOM4J" must not be used to endorse or promote products derived
98  * from this Software without prior written permission of MetaStuff, Ltd. For
99  * written permission, please contact dom4j-info@metastuff.com.
100  *
101  * 4. Products derived from this Software may not be called "DOM4J" nor may
102  * "DOM4J" appear in their names without prior written permission of MetaStuff,
103  * Ltd. DOM4J is a registered trademark of MetaStuff, Ltd.
104  *
105  * 5. Due credit should be given to the DOM4J Project - http://www.dom4j.org
106  *
107  * THIS SOFTWARE IS PROVIDED BY METASTUFF, LTD. AND CONTRIBUTORS ``AS IS'' AND
108  * ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
109  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
110  * ARE DISCLAIMED. IN NO EVENT SHALL METASTUFF, LTD. OR ITS CONTRIBUTORS BE
111  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
112  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
113  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
114  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
115  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
116  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
117  * POSSIBILITY OF SUCH DAMAGE.
118  *
119  * Copyright 2001-2005 (C) MetaStuff, Ltd. All Rights Reserved.
120  */

121
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