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source("incl/start.R")
message("*** future_*apply() and 'future.stdout' ...")
options(future.debug = TRUE)
truth <- list()
out <- utils::capture.output({
y <- lapply(1:0, FUN = function(x) {
print(x)
})
})
truth[["lapply"]] <- list(value = y, stdout = out)
out <- utils::capture.output({
y <- mapply(1:0, 0:1, FUN = function(x, y) {
print(list(x = x, y = y))
})
})
truth[["mapply"]] <- list(value = y, stdout = out)
for (cores in 1:availCores) {
message(sprintf(" - Testing with %d cores ...", cores))
options(mc.cores = cores)
for (strategy in supportedStrategies(cores)) {
message(sprintf("* plan('%s') ...", strategy))
plan(strategy)
for (fun in names(truth)) {
for (stdout in c(FALSE, TRUE, NA)) {
message(sprintf("* future_%s(x, ..., future.stdout = %s) ...", fun, stdout))
out <- utils::capture.output({
if (fun == "lapply") {
y <- future_lapply(1:0, FUN = function(x) {
Sys.sleep(x / 2) ## make futures resolve out of order
print(x)
}, future.stdout = stdout)
} else if (fun == "mapply") {
y <- future_mapply(1:0, 0:1, FUN = function(x, y) {
Sys.sleep(x / 2) ## make futures resolve out of order
print(list(x = x, y = y))
}, future.stdout = stdout)
}
})
stopifnot(identical(y, truth[[fun]]$value))
if (isTRUE(stdout)) {
stopifnot(identical(out, truth[[fun]]$stdout))
} else if (is.na(stdout)) {
} else {
stopifnot(nchar(out) == 0)
}
message(sprintf("* future_%s(x, ..., future.stdout = %s) ... DONE", fun, stdout))
} ## for (stdout ...)
} ## for (fun ...)
message(sprintf("* plan('%s') ... DONE", strategy))
}
message(sprintf(" - Testing with %d cores ... DONE", cores))
}
message("*** future_*apply() and 'future.stdout' ... DONE")
source("incl/end.R")
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