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49 package org.jaxen.test;
50
51 import junit.framework.TestCase;
52
53 import java.io.StringReader;
54 import java.util.Iterator;
55 import java.util.List;
56
57 import org.dom4j.Attribute;
58 import org.dom4j.Document;
59 import org.dom4j.DocumentException;
60 import org.dom4j.Element;
61 import org.dom4j.Namespace;
62 import org.dom4j.io.SAXReader;
63 import org.dom4j.tree.DefaultAttribute;
64 import org.dom4j.tree.DefaultDocument;
65 import org.dom4j.tree.DefaultElement;
66 import org.jaxen.JaxenException;
67 import org.jaxen.XPath;
68 import org.jaxen.XPathSyntaxException;
69 import org.jaxen.dom4j.Dom4jXPath;
70 import org.jaxen.saxpath.helpers.XPathReaderFactory;
71
72 public class DOM4JXPathTest extends TestCase
73 {
74
75 private static final String BASIC_XML = "xml/basic.xml";
76
77 public DOM4JXPathTest(String name)
78 {
79 super( name );
80 }
81
82 public void setUp()
83 {
84 System.setProperty( XPathReaderFactory.DRIVER_PROPERTY,
85 "" );
86 }
87
88 public void testConstruction() throws JaxenException
89 {
90 new Dom4jXPath( "/foo/bar/baz" );
91 }
92
93 public void testSelection() throws JaxenException, DocumentException
94 {
95
96 XPath xpath = new Dom4jXPath( "/foo/bar/baz" );
97 SAXReader reader = new SAXReader();
98 Document doc = reader.read( BASIC_XML );
99 List results = xpath.selectNodes( doc );
100 assertEquals( 3, results.size() );
101 Iterator iter = results.iterator();
102 assertEquals( "baz",
103 ((Element)iter.next()).getName() );
104 assertEquals( "baz",
105 ((Element)iter.next()).getName() );
106 assertEquals( "baz",
107 ((Element)iter.next()).getName() );
108 assertTrue( ! iter.hasNext() );
109
110 }
111
112 public void testAsBoolean() throws JaxenException, DocumentException
113 {
114 XPath xpath = new Dom4jXPath( "/root/a = 'a'" );
115 SAXReader reader = new SAXReader();
116 Document doc = reader.read( "xml/simple.xml" );
117 boolean answer = xpath.booleanValueOf( doc );
118 assertTrue( "Xpath worked: " + xpath, answer );
119 xpath = new Dom4jXPath( "'a' = 'b'" );
120 answer = xpath.booleanValueOf( doc );
121 assertTrue( "XPath should return false: " + xpath, ! answer );
122 }
123
124 public void testJaxen20AttributeNamespaceNodes() throws JaxenException
125 {
126
127 Namespace ns1 = Namespace.get("p1", "www.acme1.org");
128 Namespace ns2 = Namespace.get("p2", "www.acme2.org");
129 Element element = new DefaultElement("test", ns1);
130 Attribute attribute = new DefaultAttribute("pre:foo", "bar", ns2);
131 element.add(attribute);
132 Document doc = new DefaultDocument(element);
133
134 XPath xpath = new Dom4jXPath( "//namespace::node()" );
135 List results = xpath.selectNodes( doc );
136 assertEquals( 3, results.size() );
137
138 }
139
140 public void testJaxen16() throws JaxenException, DocumentException
141 {
142
143 String document = "<a xmlns:b=\"...\"/>";
144 SAXReader reader = new SAXReader();
145 Document doc = reader.read( new StringReader(document) );
146
147 XPath xpath = new Dom4jXPath( "/a/b" );
148 List results = xpath.selectNodes( doc );
149 assertEquals( 0, results.size() );
150
151 }
152
153 public void testNamespaceNodesAreInherited() throws JaxenException
154 {
155 Namespace ns0 = Namespace.get("p0", "www.acme0.org");
156 Namespace ns1 = Namespace.get("p1", "www.acme1.org");
157 Namespace ns2 = Namespace.get("p2", "www.acme2.org");
158 Element element = new DefaultElement("test", ns1);
159 Attribute attribute = new DefaultAttribute("pre:foo", "bar", ns2);
160 element.add(attribute);
161 Element root = new DefaultElement("root", ns0);
162 root.add(element);
163 Document doc = new DefaultDocument(root);
164
165 XPath xpath = new Dom4jXPath( "/*/*/namespace::node()" );
166
167 List results = xpath.selectNodes( doc );
168
169 assertEquals( 4,
170 results.size() );
171 }
172
173 public void testSyntaxException() throws JaxenException {
174
175 String path = "/row/[some_node='val1']|[some_node='val2']";
176 try {
177 new Dom4jXPath(path);
178 fail("Allowed union of non-node-sets");
179 }
180 catch (XPathSyntaxException success) {
181 assertNotNull(success.getMessage());
182 }
183
184 }
185
186
187 }