R Under development (unstable) (2024-03-19 r86153 ucrt) -- "Unsuffered Consequences"
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> 
> library(ciw)
> 
> ## tests are tricky because of
> ##   a) connectivity (which incoming() checks internally)
> ##   b) random nature of content at the CRAM incoming/ directories
> ## so we keep it simple
> 
> res <- incoming()
> isTRUE(inherits(res, "data.frame"))
[1] TRUE
> 
> n <- nrow(res)
> isTRUE(n >= 0)
[1] TRUE
> 
> k <- if (n > 0) ncol(res) else 0
> isTRUE(k >= 0)
[1] TRUE
> 
> expected_names <- c("Folder", "Name", "Time", "Size", "Age")
> actual_names <- if (k > 0) colnames(res) else expected_names
> isTRUE(all.equal(actual_names, expected_names))
[1] TRUE
> 
> proc.time()
   user  system elapsed 
   0.68    0.20    1.04