R Under development (unstable) (2024-10-14 r87233 ucrt) -- "Unsuffered Consequences"
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> library(qwraps2)
> 
> # verify the return is TRUE for a set of installed packages
> stopifnot(pkg_check(c("qwraps2", "ggplot2")))
> 
> # verify a return of FALSE if at least one of the packages is not installed
> stopifnot(pkg_check(c("qwraps2", "NOT A PKG")) == FALSE)
> 
> # verify FALSE is installed package is < provided version
> stopifnot(pkg_check(c("qwraps2"), "999.999.999") == FALSE)
> 
> # Expect an error to be thrown with the `stop` arguement is used.
> test <- tryCatch(pkg_check(c("qwraps2", "NOT A PKG"), stop = TRUE), error = function(e) e)
[1] FALSE
attr(,"checks")
            package version available installed_version
qwraps2     qwraps2      NA      TRUE             0.6.1
NOT A PKG NOT A PKG      NA     FALSE              <NA>
> stopifnot(inherits(test, 'error'))
> 
> 
> proc.time()
   user  system elapsed 
   0.23    0.03    0.25