Code coverage tools for Elixir?

[axelson]

@Fl4m3Ph03n1x

It is possible, but not always feasible.

I would agree with you if only guards weren’t limited. The limitations with guards directly imply that some conditions cannot be converted into the pattern matching formula. For example, Map.key? can’t be used in a guard. if you have

if Map.key?(a), do: b, else: c

Then you are stuck.

I believe what @hauleth was driving at is that you can restructure that code as

def handle_has_key(true), do: b
def handle_has_key(false), do: c

def main do
  handle_has_key(Map.key?(a))
end

i.e. pass the result of the check into the function

Of course, I’m not advocating to write all your code in this manner, just pointing out that it is possible