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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 StartsWithTest 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 StartsWithTest(String name) {
82 super(name);
83 }
84
85 public void testStartsWithNumber() throws JaxenException
86 {
87 XPath xpath = new DOMXPath( "starts-with(33, '3')" );
88 Boolean result = (Boolean) xpath.evaluate( doc );
89 assertEquals(Boolean.TRUE, result);
90 }
91
92 public void testStartsWithString() throws JaxenException
93 {
94 XPath xpath = new DOMXPath( "starts-with('test', 't')" );
95 Boolean result = (Boolean) xpath.evaluate( doc );
96 assertEquals(Boolean.TRUE, result);
97 }
98
99 public void testStartsWithString3() throws JaxenException
100 {
101 XPath xpath = new DOMXPath( "starts-with('superlative', 'superlative')" );
102 Boolean result = (Boolean) xpath.evaluate( doc );
103 assertEquals(Boolean.TRUE, result);
104 }
105
106 public void testStartsWithNumber2() throws JaxenException
107 {
108 XPath xpath = new DOMXPath( "starts-with(43, '3')" );
109 Boolean result = (Boolean) xpath.evaluate( doc );
110 assertEquals(Boolean.FALSE, result);
111 }
112
113 public void testStartsWithString2() throws JaxenException
114 {
115 XPath xpath = new DOMXPath( "starts-with('1234567890', '1234567a')" );
116 Boolean result = (Boolean) xpath.evaluate( doc );
117 assertEquals(Boolean.FALSE, result);
118 }
119
120
121 public void testEmptyStringStartsWithNonEmptyString() throws JaxenException
122 {
123 XPath xpath = new DOMXPath( "starts-with('', 'a')" );
124 Boolean result = (Boolean) xpath.evaluate( doc );
125 assertEquals(Boolean.FALSE, result);
126 }
127
128 public void testEmptyStringStartsWithEmptyString() throws JaxenException
129 {
130 XPath xpath = new DOMXPath( "starts-with('', '')" );
131 Boolean result = (Boolean) xpath.evaluate( doc );
132 assertEquals(Boolean.TRUE, result);
133 }
134
135 public void testStartsWithEmptyString() throws JaxenException
136 {
137 XPath xpath = new DOMXPath( "starts-with('a', '')" );
138 Boolean result = (Boolean) xpath.evaluate( doc );
139 assertEquals(Boolean.TRUE, result);
140 }
141
142 public void testStartsWithFunctionRequiresAtLeastTwoArguments()
143 throws JaxenException {
144
145 BaseXPath xpath = new DOMXPath("starts-with('a')");
146
147 try {
148 xpath.selectNodes(doc);
149 fail("Allowed starts-with function with one argument");
150 }
151 catch (FunctionCallException ex) {
152 assertNotNull(ex.getMessage());
153 }
154
155 }
156
157 public void testStartsWithFunctionRequiresAtMostTwoArguments()
158 throws JaxenException {
159
160 BaseXPath xpath = new DOMXPath("starts-with('a', 'a', 'a')");
161
162 try {
163 xpath.selectNodes(doc);
164 fail("Allowed starts-with function with three arguments");
165 }
166 catch (FunctionCallException ex) {
167 assertNotNull(ex.getMessage());
168 }
169
170 }
171
172 }