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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.XPath;
74 import org.jaxen.dom.DOMXPath;
75 import org.w3c.dom.Document;
76
77 /***
78 * @author Elliotte Rusty Harold
79 *
80 */
81 public class SubstringAfterTest extends TestCase {
82
83 private Document doc;
84
85 public void setUp() throws ParserConfigurationException
86 {
87 DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
88 factory.setNamespaceAware(true);
89 DocumentBuilder builder = factory.newDocumentBuilder();
90 doc = builder.newDocument();
91 doc.appendChild(doc.createElement("root"));
92 }
93
94
95 public SubstringAfterTest(String name) {
96 super(name);
97 }
98
99 public void testSubstringAfterNumber() throws JaxenException
100 {
101 XPath xpath = new DOMXPath( "substring-after(33, '3')" );
102 String result = (String) xpath.evaluate( doc );
103 assertEquals("3", result);
104 }
105
106 public void testSubstringAfterString() throws JaxenException
107 {
108 XPath xpath = new DOMXPath( "substring-after('test', 'es')" );
109 String result = (String) xpath.evaluate( doc );
110 assertEquals("t", result);
111 }
112
113 public void testSubstringAfterString4() throws JaxenException
114 {
115 XPath xpath = new DOMXPath( "substring-after('superlative', 'superlative')" );
116 String result = (String) xpath.evaluate( doc );
117 assertEquals("", result);
118 }
119
120 public void testSubstringAfterNumber2() throws JaxenException
121 {
122 XPath xpath = new DOMXPath( "substring-after(43, '0')" );
123 String result = (String) xpath.evaluate( doc );
124 assertEquals("", result);
125 }
126
127 public void testSubstringAfterString2() throws JaxenException
128 {
129 XPath xpath = new DOMXPath( "substring-after('1234567890', '1234567a')" );
130 String result = (String) xpath.evaluate( doc );
131 assertEquals("", result);
132 }
133
134
135 public void testSubstringAfterString3() throws JaxenException
136 {
137 XPath xpath = new DOMXPath( "substring-after('1234567890', '456')" );
138 String result = (String) xpath.evaluate( doc );
139 assertEquals("7890", result);
140 }
141
142
143 public void testEmptyStringSubstringAfterNonEmptyString() throws JaxenException
144 {
145 XPath xpath = new DOMXPath( "substring-after('', 'a')" );
146 String result = (String) xpath.evaluate( doc );
147 assertEquals("", result);
148 }
149
150 public void testEmptyStringBeforeEmptyString() throws JaxenException
151 {
152 XPath xpath = new DOMXPath( "substring-after('', '')" );
153 String result = (String) xpath.evaluate( doc );
154 assertEquals("", result);
155 }
156
157 public void testSubstringAfterEmptyString() throws JaxenException
158 {
159 XPath xpath = new DOMXPath( "substring-after('a', '')" );
160 String result = (String) xpath.evaluate( doc );
161 assertEquals("a", result);
162 }
163
164 public void testSubstringAfterFunctionRequiresAtLeastTwoArguments()
165 throws JaxenException {
166
167 BaseXPath xpath = new DOMXPath("substring-after('a')");
168
169 try {
170 xpath.selectNodes(doc);
171 fail("Allowed substring-after function with one argument");
172 }
173 catch (FunctionCallException ex) {
174 assertNotNull(ex.getMessage());
175 }
176
177 }
178
179 public void testSubstringAfterFunctionRequiresAtMostTwoArguments()
180 throws JaxenException {
181
182 BaseXPath xpath = new DOMXPath("substring-after('a', 'a', 'a')");
183
184 try {
185 xpath.selectNodes(doc);
186 fail("Allowed substring-after function with three arguments");
187 }
188 catch (FunctionCallException ex) {
189 assertNotNull(ex.getMessage());
190 }
191
192 }
193
194 }