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48 package org.jaxen.test;
49
50 import javax.xml.parsers.DocumentBuilder;
51 import javax.xml.parsers.DocumentBuilderFactory;
52 import javax.xml.parsers.ParserConfigurationException;
53
54 import junit.framework.TestCase;
55
56 import org.jaxen.BaseXPath;
57 import org.jaxen.FunctionCallException;
58 import org.jaxen.JaxenException;
59 import org.jaxen.XPath;
60 import org.jaxen.dom.DOMXPath;
61 import org.w3c.dom.Document;
62
63 /***
64 * @author Elliotte Rusty Harold
65 *
66 */
67 public class SubstringBeforeTest extends TestCase {
68
69 private Document doc;
70
71 public void setUp() throws ParserConfigurationException
72 {
73 DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
74 factory.setNamespaceAware(true);
75 DocumentBuilder builder = factory.newDocumentBuilder();
76 doc = builder.newDocument();
77 doc.appendChild(doc.createElement("root"));
78 }
79
80
81 public SubstringBeforeTest(String name) {
82 super(name);
83 }
84
85 public void testSubstringBeforeNumber() throws JaxenException
86 {
87 XPath xpath = new DOMXPath( "substring-before(33, '3')" );
88 String result = (String) xpath.evaluate( doc );
89 assertEquals("", result);
90 }
91
92 public void testSubstringBeforeString() throws JaxenException
93 {
94 XPath xpath = new DOMXPath( "substring-before('test', 'es')" );
95 String result = (String) xpath.evaluate( doc );
96 assertEquals("t", result);
97 }
98
99 public void testContainsString3() throws JaxenException
100 {
101 XPath xpath = new DOMXPath( "substring-before('superlative', 'superlative')" );
102 String result = (String) xpath.evaluate( doc );
103 assertEquals("", result);
104 }
105
106 public void testSubstringBeforeNumber2() throws JaxenException
107 {
108 XPath xpath = new DOMXPath( "substring-before(43, '0')" );
109 String result = (String) xpath.evaluate( doc );
110 assertEquals("", result);
111 }
112
113 public void testSubstringBeforeString2() throws JaxenException
114 {
115 XPath xpath = new DOMXPath( "substring-before('1234567890', '1234567a')" );
116 String result = (String) xpath.evaluate( doc );
117 assertEquals("", result);
118 }
119
120
121 public void testSubstringBeforeString3() throws JaxenException
122 {
123 XPath xpath = new DOMXPath( "substring-before('1234567890', '456')" );
124 String result = (String) xpath.evaluate( doc );
125 assertEquals("123", result);
126 }
127
128
129 public void testEmptyStringSubstringBeforeNonEmptyString() throws JaxenException
130 {
131 XPath xpath = new DOMXPath( "substring-before('', 'a')" );
132 String result = (String) xpath.evaluate( doc );
133 assertEquals("", result);
134 }
135
136 public void testEmptyStringBeforeEmptyString() throws JaxenException
137 {
138 XPath xpath = new DOMXPath( "substring-before('', '')" );
139 String result = (String) xpath.evaluate( doc );
140 assertEquals("", result);
141 }
142
143 public void testSubstringBeforeEmptyString() throws JaxenException
144 {
145 XPath xpath = new DOMXPath( "substring-before('a', '')" );
146 String result = (String) xpath.evaluate( doc );
147 assertEquals("", result);
148 }
149
150 public void testSubstringBeforeFunctionRequiresAtLeastTwoArguments()
151 throws JaxenException {
152
153 BaseXPath xpath = new DOMXPath("substring-before('a')");
154
155 try {
156 xpath.selectNodes(doc);
157 fail("Allowed substring-before function with one argument");
158 }
159 catch (FunctionCallException ex) {
160 assertNotNull(ex.getMessage());
161 }
162
163 }
164
165 public void testSubstringBeforeFunctionRequiresAtMostTwoArguments()
166 throws JaxenException {
167
168 BaseXPath xpath = new DOMXPath("substring-before('a', 'a', 'a')");
169
170 try {
171 xpath.selectNodes(doc);
172 fail("Allowed substring-before function with three arguments");
173 }
174 catch (FunctionCallException ex) {
175 assertNotNull(ex.getMessage());
176 }
177
178 }
179
180 }