Writing a test to verify ODT content

Sample to test the content of an Open Office document containing three lines ('1234', empty line, 'description'):

import javax.xml.parsers.DocumentBuilderFactory;
...
import com.artofsolving.jodconverter.DefaultDocumentFormatRegistry;
import com.artofsolving.jodconverter.DocumentConverter;
import org.w3c.dom.Document;
import org.w3c.dom.Element;

ByteArrayOutputStream output = templateManager.applyModelToTemplate(inputStream, map);
String content = getZipEntry(new ByteArrayInputStream(output.toByteArray()), "content.xml");
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
Document doc = dbf.newDocumentBuilder().parse(new ByteArrayInputStream(content.getBytes()));

Element docElement = doc.getDocumentElement();
assertEquals("office:document-content", docElement.getTagName());

Element bodyElement = (Element) docElement.getElementsByTagName("text:p").item(0);
assertEquals("1234", bodyElement.getTextContent());
// skip empty line
bodyElement = (Element) docElement.getElementsByTagName("text:p").item(2);
assertEquals("description", bodyElement.getTextContent());