assertFunction / checkFunction does not check multiple arguments

mllg / checkmate

Fast and versatile argument checks

https://mllg.github.io/checkmate/

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assertFunction / checkFunction does not check multiple arguments #233

Closed chris-mcdo closed 1 year ago

chris-mcdo commented 2 years ago

Say I want to check a function has two arguments, a and b:

multiply <- function(a, b) a * b

As far as I can tell, the current behaviour is:

assert_function(multiply, args = "a") passes as expected.
assert_function(multiply, args = "c") fails as expected.
assert_function(multiply, args = c("a", "c")) passes, which is not what I expected.

Am I missing something? Or is it currently not possible to check whether a function has specific arguments?

Thanks

mllg commented 1 year ago

Sorry, I cannot reproduce this issue. On my system, the last line also fails. Please try reinstalling and run the example in a new session. If the problem persists, please reopen.