Module Expect_test_config

Configuration for running expect tests

To configure expect_test, add the following at the top of your .ml file, or in some import.ml:


      module Expect_test_config = struct
        include Expect_test_config
        let pre_redirect_hook () = ...
      end

Note that since all expect test are also inline tests, the inline test configuration also applies to all expect test.

module type S : sig ... end
include S with type 'a S.IO.t = 'a
module IO : sig ... end

IO monad

val flush : unit ‑> unit IO.t

Flush whatever need to be to get pending output out on file descriptor 0.

val run : (unit ‑> unit IO.t) ‑> unit

Run an IO operation until completion

val flushed : unit ‑> bool

Synchronous check that there is no pending output on file description 0. With async, there is no guarantee that on the rhs of a IO.bind (flush ()) ... the output is completely flushed, that's why we need this.