package org.xmldb.xupdate.unittests;
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import junit.framework.TestCase;
import org.apache.xml.serialize.DOMSerializer;
import org.apache.xml.serialize.OutputFormat;
import org.apache.xml.serialize.XMLSerializer;
import org.apache.xpath.XPathAPI;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.traversal.DocumentTraversal;
import org.w3c.dom.traversal.NodeFilter;
import org.w3c.dom.traversal.NodeIterator;
import org.xmldb.common.xml.queries.XUpdateQuery;
import org.xmldb.xupdate.lexus.XUpdateQueryImpl;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import java.io.StringWriter;
/**
*
*/
public class LexusTestCase extends TestCase {
private static Document updates;
private static DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
static final String RESOURCE_LOCATION = "org/xmldb/xupdate/unittests/";
static final String XPATHQUERYFACTORY = "org.xmldb.common.xml.queries.xalan2.XPathQueryFactoryImpl";
/**
*
*/
public LexusTestCase(String name) {
super(name);
}
public void mainTest(String test) throws Exception {
if (updates == null) {
updates = parseInputFile(RESOURCE_LOCATION + "tests.xml");
}
Node xupdateQuery = XPathAPI.selectSingleNode(updates, "/tests/test[@name='" + test + "']/xupdate/*", updates);
String query = serialize((Element) xupdateQuery);
Document result = getDocument(updates, "/tests/input[@name=/tests/test[@name='" + test + "']/@input]/*");
XUpdateQuery xupdate = new XUpdateQueryImpl();
xupdate.setQString(query);
System.setProperty("org.xmldb.common.xml.queries.XPathQueryFactory", XPATHQUERYFACTORY);
xupdate.execute(result);
removeWhiteSpace(result);
Document expected = getDocument(updates, "/tests/test[@name='" + test + "']/result/*");
removeWhiteSpace(expected);
// System.out.println("expected: \n" + serialize((expected)));
// System.out.println("result: \n" + serialize(result));
new XhiveNodeMatcher().compareNodes(expected, result, true, true);
}
/**
* Parses input file and generates DOM.
*/
private Document parseInputFile(String inputFile) throws Exception {
DocumentBuilder builder = getDocumentBuilder();
return builder.parse(inputFile);
}
private String serialize(Element element) throws Exception {
StringWriter writer = new StringWriter();
getSerializer(writer).serialize(element);
return writer.toString();
}
private String serialize(Document document) throws Exception {
StringWriter writer = new StringWriter();
getSerializer(writer).serialize(document);
return writer.toString();
}
private DOMSerializer getSerializer(StringWriter writer) throws Exception {
OutputFormat outputFormat = new OutputFormat("xml", "UTF-8", true);
XMLSerializer serializer = new XMLSerializer(writer, outputFormat);
return serializer.asDOMSerializer();
}
private DocumentBuilder getDocumentBuilder() throws Exception {
factory.setNamespaceAware(true);
DocumentBuilder builder = factory.newDocumentBuilder();
return builder;
}
private Document getDocument(Node contextNode, String query) throws Exception {
Node result = XPathAPI.selectSingleNode(contextNode, query, contextNode);
DocumentBuilder builder = getDocumentBuilder();
Document document = builder.newDocument();
result = document.importNode(result, true);
document.appendChild(result);
return document;
}
private void removeWhiteSpace(Node context) {
DocumentTraversal traversal = context instanceof Document
? (DocumentTraversal) context
: (DocumentTraversal) context.getOwnerDocument();
NodeIterator nodeIterator = traversal.createNodeIterator(context, NodeFilter.SHOW_TEXT, null, true);
Node node = nodeIterator.nextNode();
while (node != null) {
if (node.getNodeValue().trim().compareTo("") == 0) {
node.getParentNode().removeChild(node);
}
node = nodeIterator.nextNode();
}
}
}