1 /*
2 * $Header$
3 * $Revision$
4 * $Date$
5 *
6 * ====================================================================
7 *
8 * Copyright (C) 2000-2002 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
13 * are met:
14 *
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions, and the following disclaimer.
17 *
18 * 2. Redistributions in binary form must reproduce the above copyright
19 * notice, this list of conditions, and the disclaimer that follows
20 * these conditions in the documentation and/or other materials
21 * provided with the distribution.
22 *
23 * 3. The name "Jaxen" must not be used to endorse or promote products
24 * derived from this software without prior written permission. For
25 * written permission, please contact license@jaxen.org.
26 *
27 * 4. Products derived from this software may not be called "Jaxen", nor
28 * may "Jaxen" appear in their name, without prior written permission
29 * from the Jaxen Project Management (pm@jaxen.org).
30 *
31 * In addition, we request (but do not require) that you include in the
32 * end-user documentation provided with the redistribution and/or in the
33 * software itself an acknowledgement equivalent to the following:
34 * "This product includes software developed by the
35 * Jaxen Project (http://www.jaxen.org/)."
36 * Alternatively, the acknowledgment may be graphical using the logos
37 * available at http://www.jaxen.org/
38 *
39 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
40 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
41 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
42 * DISCLAIMED. IN NO EVENT SHALL THE Jaxen AUTHORS OR THE PROJECT
43 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
45 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
46 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
47 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
48 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
49 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
50 * SUCH DAMAGE.
51 *
52 * ====================================================================
53 * This software consists of voluntary contributions made by many
54 * individuals on behalf of the Jaxen Project and was originally
55 * created by bob mcwhirter <bob@werken.com> and
56 * James Strachan <jstrachan@apache.org>. For more information on the
57 * Jaxen Project, please see <http://www.jaxen.org/>.
58 *
59 * $Id$
60 */
61
62 package org.jaxen.function;
63
64 import java.io.IOException;
65
66 import javax.xml.parsers.DocumentBuilder;
67 import javax.xml.parsers.DocumentBuilderFactory;
68 import javax.xml.parsers.ParserConfigurationException;
69
70 import junit.framework.TestCase;
71
72 import org.jaxen.BaseXPath;
73 import org.jaxen.FunctionCallException;
74 import org.jaxen.JaxenException;
75 import org.jaxen.XPath;
76 import org.jaxen.dom.DOMXPath;
77 import org.w3c.dom.Document;
78 import org.xml.sax.SAXException;
79
80 /***
81 * @author Elliotte Rusty Harold
82 *
83 */
84 public class CountTest extends TestCase {
85
86 private Document doc;
87
88 public void setUp() throws ParserConfigurationException, SAXException, IOException
89 {
90 DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
91 factory.setNamespaceAware(true);
92 DocumentBuilder builder = factory.newDocumentBuilder();
93 doc = builder.parse( "xml/basic.xml" );
94 }
95
96
97 public CountTest(String name) {
98 super(name);
99 }
100
101 public void testCount3()
102 {
103 try
104 {
105 XPath xpath = new DOMXPath( "count(3)" );
106 xpath.selectNodes( doc );
107 fail("Allowed count of number");
108 }
109 catch (FunctionCallException e)
110 {
111 assertEquals("count() function can only be used for node-sets", e.getMessage());
112 }
113 catch (Exception e)
114 {
115 e.printStackTrace();
116 fail( e.getMessage() );
117 }
118 }
119
120 public void testCountFunctionRequiresAtLeastOneArgument()
121 throws JaxenException {
122
123 BaseXPath xpath = new DOMXPath("count()");
124
125 try {
126 xpath.selectNodes(doc);
127 fail("Allowed count function with no arguments");
128 }
129 catch (FunctionCallException ex) {
130 assertNotNull(ex.getMessage());
131 }
132
133 }
134
135 public void testCountFunctionRequiresAtMostOneArgument()
136 throws JaxenException {
137
138 BaseXPath xpath = new DOMXPath("count(/*, /@*)");
139
140 try {
141 xpath.selectNodes(doc);
142 fail("Allowed count function with two arguments");
143 }
144 catch (FunctionCallException ex) {
145 assertNotNull(ex.getMessage());
146 }
147
148 }
149
150 public void testCountRootElement()
151 throws JaxenException {
152
153 BaseXPath xpath = new DOMXPath("count(/*)");
154 Double result = (Double) xpath.evaluate(doc);
155 assertEquals(1.0, result.doubleValue(), 0.00001);
156
157 }
158
159
160 }