Determine whether a test's output matches its expected output.
module Result : sig ... end
val expectation_body : expect:Fmt.t Cst.t Expect_test_common.Std.Expectation.Body.t ‑> actual:string ‑> default_indent:int ‑> pad_single_line:bool ‑> Fmt.t Cst.t Expect_test_common.Std.Expectation.Body.t Result.t