parentElement.appendChild(childElement);
TestableXmlSettingsReaderWriter readerWriter = new TestableXmlSettingsReaderWriter();
RootXmlSettings parentSettings = new RootXmlSettings(doc, readerWriter);
Settings childSettings = parentSettings.getSettings("child-settings");
childSettings.save();
assertEquals(parentSettings, readerWriter.lastWritten);
}
public void testChildSettings() throws ParserConfigurationException, FactoryConfigurationError, SAXException, IOException {