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open QCheck2
module Suite
(R : Model.COVARIANT_0)
(S : Preface_specs.SEMIGROUP with type t = R.t) =
struct
module Laws = Preface_laws.Semigroup.For (S)
let print = Format.asprintf "%a" R.pp
let semigroup_1 count =
let print = Print.tup3 print print print in
let generator = Gen.tup3 R.generator R.generator R.generator in
Util.test ~count ~print generator Laws.semigroup_1 (fun lhs rhs (a, b, c) ->
let left = lhs a b c
and right = rhs a b c in
R.equal left right )
;;
let tests ~count = [ semigroup_1 count ]
end