XMLProcessTestable next = createNextProcess();
testable.setNextProcess(next);
testable.startPrefixMapping(PREFIX, URI);
next.assertStartPrefixMappingNotInvoked();
testable.startElement("", "localname", "localname", attributes);
next.assertStartPrefixMappingInvoked(PREFIX, URI);
next.assertStartElementInvoked("", "localname", "localname", attributes);
}