Test.IOSpec.Surrogate

This module contains a few type signatures to help replace pure specifications by their effectful counterparts.

The IOSpec type

type IOSpec f a = IO a

The IOSpec f a is merely type synonym for IO a. Once you've tested a module, you can use these definitions to avoid having to change your type signatures.

Note that because this definition of IOSpec ignores its f argument, each of ForkS, MVarS, etc., is simply an empty data type.

The specifications

data ForkS

data MVarS

data IORefS

data STMS

data Teletype

data f :+: g