@Beta
    public DocumentProcessor.Progress process(String chain, final Processing processing) {
        return application.getJDisc("default").documentProcessing().process(ComponentSpecification.fromString(chain), processing);
    }
Pass a processing object through the

@param chain      process using this chain
@param processing the processing object to process
@return the docproc return status
application/src/test/java/com/yahoo/application/ApplicationFacade.java