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Java > Open Source Codes > org > xmldb > xupdate > unittests > LexusTestCase


1 package org.xmldb.xupdate.unittests;
2
3 /*
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55
56 import junit.framework.TestCase;
57 import org.apache.xml.serialize.DOMSerializer;
58 import org.apache.xml.serialize.OutputFormat;
59 import org.apache.xml.serialize.XMLSerializer;
60 import org.apache.xpath.XPathAPI;
61 import org.w3c.dom.Document JavaDoc;
62 import org.w3c.dom.Element JavaDoc;
63 import org.w3c.dom.Node JavaDoc;
64 import org.w3c.dom.traversal.DocumentTraversal;
65 import org.w3c.dom.traversal.NodeFilter;
66 import org.w3c.dom.traversal.NodeIterator;
67 import org.xmldb.common.xml.queries.XUpdateQuery;
68 import org.xmldb.xupdate.lexus.XUpdateQueryImpl;
69
70 import javax.xml.parsers.DocumentBuilder JavaDoc;
71 import javax.xml.parsers.DocumentBuilderFactory JavaDoc;
72 import java.io.StringWriter JavaDoc;
73
74 /**
75  *
76  */
77 public class LexusTestCase extends TestCase {
78
79   private static Document JavaDoc updates;
80   private static DocumentBuilderFactory JavaDoc factory = DocumentBuilderFactory.newInstance();
81
82   static final String JavaDoc RESOURCE_LOCATION = "org/xmldb/xupdate/unittests/";
83   static final String JavaDoc XPATHQUERYFACTORY = "org.xmldb.common.xml.queries.xalan2.XPathQueryFactoryImpl";
84
85   /**
86    *
87    */
88   public LexusTestCase(String JavaDoc name) {
89     super(name);
90   }
91
92   public void mainTest(String JavaDoc test) throws Exception JavaDoc {
93     if (updates == null) {
94       updates = parseInputFile(RESOURCE_LOCATION + "tests.xml");
95     }
96
97     Node JavaDoc xupdateQuery = XPathAPI.selectSingleNode(updates, "/tests/test[@name='" + test + "']/xupdate/*", updates);
98     String JavaDoc query = serialize((Element JavaDoc) xupdateQuery);
99
100     Document JavaDoc result = getDocument(updates, "/tests/input[@name=/tests/test[@name='" + test + "']/@input]/*");
101     XUpdateQuery xupdate = new XUpdateQueryImpl();
102     xupdate.setQString(query);
103     System.setProperty("org.xmldb.common.xml.queries.XPathQueryFactory", XPATHQUERYFACTORY);
104     xupdate.execute(result);
105
106     removeWhiteSpace(result);
107     Document JavaDoc expected = getDocument(updates, "/tests/test[@name='" + test + "']/result/*");
108     removeWhiteSpace(expected);
109
110 // System.out.println("expected: \n" + serialize((expected)));
111 // System.out.println("result: \n" + serialize(result));
112
113     new XhiveNodeMatcher().compareNodes(expected, result, true, true);
114   }
115
116   /**
117    * Parses input file and generates DOM.
118    */
119   private Document JavaDoc parseInputFile(String JavaDoc inputFile) throws Exception JavaDoc {
120     DocumentBuilder JavaDoc builder = getDocumentBuilder();
121     return builder.parse(inputFile);
122   }
123
124   private String JavaDoc serialize(Element JavaDoc element) throws Exception JavaDoc {
125     StringWriter JavaDoc writer = new StringWriter JavaDoc();
126     getSerializer(writer).serialize(element);
127     return writer.toString();
128   }
129
130   private String JavaDoc serialize(Document JavaDoc document) throws Exception JavaDoc {
131     StringWriter JavaDoc writer = new StringWriter JavaDoc();
132     getSerializer(writer).serialize(document);
133     return writer.toString();
134   }
135
136   private DOMSerializer getSerializer(StringWriter JavaDoc writer) throws Exception JavaDoc {
137     OutputFormat outputFormat = new OutputFormat("xml", "UTF-8", true);
138     XMLSerializer serializer = new XMLSerializer(writer, outputFormat);
139     return serializer.asDOMSerializer();
140   }
141
142   private DocumentBuilder JavaDoc getDocumentBuilder() throws Exception JavaDoc {
143     factory.setNamespaceAware(true);
144     DocumentBuilder JavaDoc builder = factory.newDocumentBuilder();
145     return builder;
146   }
147
148   private Document JavaDoc getDocument(Node JavaDoc contextNode, String JavaDoc query) throws Exception JavaDoc {
149     Node JavaDoc result = XPathAPI.selectSingleNode(contextNode, query, contextNode);
150     DocumentBuilder JavaDoc builder = getDocumentBuilder();
151     Document JavaDoc document = builder.newDocument();
152     result = document.importNode(result, true);
153     document.appendChild(result);
154     return document;
155   }
156
157   private void removeWhiteSpace(Node JavaDoc context) {
158     DocumentTraversal traversal = context instanceof Document JavaDoc
159             ? (DocumentTraversal) context
160             : (DocumentTraversal) context.getOwnerDocument();
161     NodeIterator nodeIterator = traversal.createNodeIterator(context, NodeFilter.SHOW_TEXT, null, true);
162     Node JavaDoc node = nodeIterator.nextNode();
163     while (node != null) {
164       if (node.getNodeValue().trim().compareTo("") == 0) {
165         node.getParentNode().removeChild(node);
166       }
167       node = nodeIterator.nextNode();
168     }
169   }
170 }
171
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