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1
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
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 }
170 |
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