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1
61
62 package org.jaxen.function;
63
64 import java.util.List  ;
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.dom.DOMXPath;
76 import org.w3c.dom.Document ;
77
78
82 public class LastTest extends TestCase {
83
84 private Document doc;
85
86 public void setUp() throws ParserConfigurationException
87 {
88 DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
89 factory.setNamespaceAware(true);
90 DocumentBuilder builder = factory.newDocumentBuilder();
91 doc = builder.newDocument();
92 }
93
94
95 public LastTest(String name) {
96 super(name);
97 }
98
99 public void testLastFunction()
101 throws JaxenException {
102
103 BaseXPath xpath = new DOMXPath("//x[position()=last()]");
104 org.w3c.dom.Element a = doc.createElementNS("", "a");
105 org.w3c.dom.Element b = doc.createElementNS("", "b");
106 doc.appendChild(a);
107 a.appendChild(b);
108 org.w3c.dom.Element x2 = doc.createElementNS("", "x");
109 org.w3c.dom.Element x3 = doc.createElementNS("", "x");
110 org.w3c.dom.Element x4 = doc.createElementNS("", "x");
111 a.appendChild(x4);
112 b.appendChild(x2);
113 b.appendChild(x3);
114 x2.appendChild(doc.createTextNode("2"));
115 x3.appendChild(doc.createTextNode("3"));
116 x4.appendChild(doc.createTextNode("4"));
117
118 List result = xpath.selectNodes(doc);
119 assertEquals(2, result.size());
120 assertEquals(x3, result.get(0));
121 assertEquals(x4, result.get(1));
122
123 }
124
125 public void testLastFunctionAllowsNoArguments() throws JaxenException
126 {
127 try
128 {
129 BaseXPath xpath = new DOMXPath("//x[position()=last(.)]");
130 org.w3c.dom.Element a = doc.createElementNS("", "a");
131 org.w3c.dom.Element b = doc.createElementNS("", "b");
132 doc.appendChild(a);
133 a.appendChild(b);
134 org.w3c.dom.Element x2 = doc.createElementNS("", "x");
135 org.w3c.dom.Element x3 = doc.createElementNS("", "x");
136 org.w3c.dom.Element x4 = doc.createElementNS("", "x");
137 a.appendChild(x4);
138 b.appendChild(x2);
139 b.appendChild(x3);
140 x2.appendChild(doc.createTextNode("2"));
141 x3.appendChild(doc.createTextNode("3"));
142 x4.appendChild(doc.createTextNode("4"));
143
144 xpath.selectNodes(doc);
145 fail("last() function took arguments");
146 }
147 catch (FunctionCallException e)
148 {
149 assertEquals("last() requires no arguments.", e.getMessage());
150 }
151 }
152
153
154
155
156 }
157 |
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