Nothing
message("*** devSet() ...")
library("R.devices")
set.seed(0xBEEF)
devList0 <- devList()
# Open several devices in random order
idxs <- sample(2:20, size=5L, replace=FALSE)
for (idx in idxs) {
idxT <- devSet(idx)
# Sanity check
stopifnot(idxT == idx)
}
# Close all devices
devOff(idxs)
# Sanity check
stopifnot(all.equal(devList(), devList0))
keys <- list(
A = list(a=1, b=2, c=3),
B = list(a=1, b=2, c=4),
C = list(a=1, b=2),
D = c(a=1, b=2, c=3)
)
# Open several devices using key objects
idxs <- NULL
for (key in keys) {
idx <- devSet(key)
idxs <- c(idxs, idx)
}
# Close all devices
devOff(idxs)
# Sanity check
stopifnot(all.equal(devList(), devList0))
# Open several devices using labels
labels <- c("A", "B", "C", "D")
for (rev in c(FALSE, TRUE)) {
for (label in labels) devSet(label)
if (rev) labels <- rev(labels)
for (label in labels) {
devOff(label)
left <- devList()
stopifnot(!is.element(label, names(left)))
}
}
# Sanity check
stopifnot(all.equal(devList(), devList0))
message("*** devSet() ... DONE")
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