@Override
        public Progress process(Processing processing) {
            List<DocumentOperation> docs = processing.getDocumentOperations();
            docs.clear();
            docs.add(new DocumentPut(type, "id:123456:baz:n=11111:foo:er:bra"));
            docs.add(new DocumentPut(type, "id:123456:baz:n=11111:foo:trallala"));
            docs.add(new DocumentPut(type, "id:123456:baz:n=11111:foo:a"));
            return Progress.DONE;
        }
@author <a href="mailto:einarmr@yahoo-inc.com">Einar M R Rosenvinge</a>
docproc/src/test/java/com/yahoo/docproc/jdisc/DocumentProcessingHandlerForkTestCase.java