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package net.sourceforge.cruisecontrol.util;
import java.io.StringReader;
import java.io.StringWriter;
import java.io.Writer;
import org.jdom.Document;
import org.jdom.input.SAXBuilder;
import org.jdom.output.XMLOutputter;
import org.xml.sax.XMLFilter;
import junit.framework.TestCase;
/**
* @author <a href="mailto:joriskuipers@xs4all.nl">Joris Kuipers</a>
*
*/
public class EmptyElementFilterTest extends TestCase {
private SAXBuilder builder;
protected void setUp() throws Exception {
builder = new SAXBuilder("org.apache.xerces.parsers.SAXParser");
XMLFilter emptyTaskFilter = new EmptyElementFilter("task");
XMLFilter emptyMessageFilter = new EmptyElementFilter("message");
emptyTaskFilter.setParent(emptyMessageFilter);
builder.setXMLFilter(emptyTaskFilter);
}
public void testFiltering() throws Exception {
String xml = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
+ "<?xml-stylesheet type=\"text/xsl\" href=\"log.xsl\"?>\n\n"
+ "<build time=\"43 seconds\">\n"
// empty task:
+ "\t<task location=\"nightlybuild.xml:5: \" name=\"property\" time=\"0 seconds\"></task>\n"
+ "\t<target name=\"build\" time=\"43 seconds\">\n"
+ "\t\t<task location=\"nightlybuild.xml:21: \" name=\"exec\" time=\"1 seconds\">\n"
+ "\t\t\t<message priority=\"info\"><![CDATA[Generating buildscript... done]]></message>\n"
// empty message:
+ "\t\t\t<message priority=\"warn\"><![CDATA[]]></message>\n"
+ "\t\t</task>\n"
+ "\t</target>\n"
+ "</build>\n";
Document doc = builder.build(new StringReader(xml));
Writer stringWriter = new StringWriter();
new XMLOutputter().output(doc, stringWriter);
String filteredXml = stringWriter.toString();
assertTrue("empty <task> should have been filtered",
filteredXml.indexOf("<task location=\"nightlybuild.xml:5: \"") == -1);
assertTrue("empty <message> should have been filtered",
filteredXml.indexOf("<message priority=\"warn\"") == -1);
assertTrue("non-empty task should not have been filtered",
filteredXml.indexOf("<task location=\"nightlybuild.xml:21: \"") != -1);
assertTrue("non-empty message should not have been filtered",
filteredXml.indexOf("<message priority=\"info\">") != -1);
}
}