                                        #test.filenotfound <- function() {
                                        #    filename <- "rhabarber.mzData"
                                        #    checkTrue(xcms:::rampOpen(filename) < 0)
                                        #}

                                        #test.mzData <- function() {
                                        #    filename <- system.file('iontrap/extracted.mzData', package = "msdata")
                                        #
                                        #    result <- .C("RampROpen", filename,
                                        #       rampid = integer(1), status = integer(1),
                                        #       PACKAGE = "xcms")
                                        #
                                        #    checkTrue(result[[1]] == filename)
                                        #    checkTrue(result$rampid >= 0)
                                        #    checkEqualsNumeric(result$status, 0)
                                        #
                                        #    xcms:::rampClose(result$rampid)
                                        #}
