1 /*
2 * $Header$
3 * $Revision$
4 * $Date$
5 *
6 * ====================================================================
7 *
8 * Copyright (C) 2005 Elliotte Rusty Harold.
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 javax.xml.parsers.DocumentBuilder;
65 import javax.xml.parsers.DocumentBuilderFactory;
66 import javax.xml.parsers.ParserConfigurationException;
67
68 import junit.framework.TestCase;
69
70 import org.jaxen.BaseXPath;
71 import org.jaxen.FunctionCallException;
72 import org.jaxen.JaxenException;
73 import org.jaxen.dom.DOMXPath;
74 import org.w3c.dom.Document;
75
76 /***
77 * @author Elliotte Rusty Harold
78 *
79 */
80 public class FloorTest extends TestCase {
81
82 private Document doc;
83
84 public void setUp() throws ParserConfigurationException
85 {
86 DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
87 factory.setNamespaceAware(true);
88 DocumentBuilder builder = factory.newDocumentBuilder();
89 doc = builder.newDocument();
90 org.w3c.dom.Element a = doc.createElementNS("", "a");
91 doc.appendChild(a);
92 }
93
94
95 public FloorTest(String name) {
96 super(name);
97 }
98
99
100
101 public void testFloor() throws JaxenException {
102
103 BaseXPath xpath = new DOMXPath("floor(1.5)");
104
105 Object result = xpath.evaluate(doc);
106 assertEquals(1, ((Double) result).doubleValue(), 0.0001);
107
108 }
109
110 public void testNegativeFloor() throws JaxenException {
111
112 BaseXPath xpath = new DOMXPath("floor(-1.5)");
113
114 Object result = xpath.evaluate(doc);
115 assertEquals(-2, ((Double) result).doubleValue(), 0.0001);
116
117 }
118
119 public void testNaNFloorIsNaN() throws JaxenException {
120 BaseXPath xpath = new DOMXPath("floor(1.0 div 0.0 - 2.0 div 0.0)");
121 double result = ((Double) xpath.evaluate(doc)).doubleValue();
122 assertTrue(Double.isNaN(result));
123 }
124
125 public void testInfFloorIsInf() throws JaxenException {
126 BaseXPath xpath = new DOMXPath("floor(1.0 div 0.0)");
127 double result = ((Double) xpath.evaluate(doc)).doubleValue();
128 assertTrue(Double.isInfinite(result));
129 assertTrue(result > 0);
130 }
131
132 public void testNegativeInfFloorIsNegativeInf() throws JaxenException {
133 BaseXPath xpath = new DOMXPath("floor(-1.0 div 0.0)");
134 double result = ((Double) xpath.evaluate(doc)).doubleValue();
135 assertTrue(Double.isInfinite(result));
136 assertTrue(result < 0);
137 }
138
139 public void testFloorFunctionRequiresAtLeastArgument()
140 throws JaxenException {
141
142 BaseXPath xpath = new DOMXPath("floor()");
143
144 try {
145 xpath.selectNodes(doc);
146 fail("Allowed floor function with no arguments");
147 }
148 catch (FunctionCallException ex) {
149 assertNotNull(ex.getMessage());
150 }
151
152 }
153
154 public void testBooleanFunctionRequiresExactlyOneArgument()
155 throws JaxenException {
156
157 BaseXPath xpath = new DOMXPath("floor(2.2, 1.2)");
158
159 try {
160 xpath.selectNodes(doc);
161 fail("Allowed floor function with two arguments");
162 }
163 catch (FunctionCallException ex) {
164 assertNotNull(ex.getMessage());
165 }
166
167 }
168
169 }