specifying args for spec/fdef

Hi, when using s/fdef to spec a function how do you specify :args for a function that doesn’t take any arguments?
you don’t have to specify it, but (s/cat) works

So if I omit :args stest/check fails with a :no-args-spec message. But if I use the :args empty? it seems to work. (s/cat) works too..

Ah, for check you will need it (because it uses the args generator to invoke). I will note that in fp, 0 arg functions are unusual because there is exactly one input and therefore exactly one output (and thus it can be a constant instead) OR its stateful, in which case a spec may be weird.

Yeah that’s a good point. I don’t see it coming up often. It was an impure function where part of the output was random. Probably didn’t need a spec. But I’m using spec everywhere at the moment to get a feel for it

Start with the s/fdef and stest/check entry points described in the issue, and compare how an omitted :args spec differs from an empty (s/cat). Determine whether the expected behavior should be documented for zero-argument functions; done means the handling and the required form for stest/check are clearly recorded.