package ounit

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Unit testing framework loosely based on HUnit. It is similar to JUnit, and other XUnit testing frameworks

Install

Dune Dependency

ounit.forge.ocamlcore.org Edit opam file Versions (14)

Authors

Maintainers

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https://github.com/ocaml/opam-repository/issues

Sources

ounit-2.0.8.tar.gz

sha256=2e30fe79648e928b5a9d20f83d5a1a805826c7193e821464a9e4752661ba2e0e

md5=bd12d66c9dbd95a50570bb686b0f10f5

doc/oUnit.advanced/OUnitDiff/index.html

Module `OUnitDiff`

Unit tests for collection of elements

This module allows to define a more precise way to display differences between collection of elements. When collection differ, the tester is interested by what are the missing/extra elements. This module provides a diff operation to spot the difference quickly between two sets of elements.

Example:

open OUnit;;

module EInt =
struct
  type t = int
  let compare = ( - )
  let pp_printer = Format.pp_print_int
  let pp_print_sep = OUnitDiff.pp_comma_separator
end

module ListInt = OUnitDiff.ListSimpleMake(EInt);;

let test_diff () =
  ListInt.assert_equal
    [1; 2; 3; 4; 5]
    [1; 2; 5; 4]
;;

let _ =
  run_test_tt_main ("test_diff" >:: test_diff)
;;

when run this test outputs:

OUnit: expected: 1, 2, 3, 4, 5 but got: 1, 2, 5, 4
differences: element number 2 differ (3 <> 5)

since 1.1.0

author Sylvain Le Gall

Signatures

module type DIFF_ELEMENT = sig ... end

Definition of an element

module type S = sig ... end

Definition of standard operations

Implementations

module SetMake (D : DIFF_ELEMENT) : S with type e = D.t

Collection of elements based on a Set, elements order doesn't matter

module ListSimpleMake
  (D : DIFF_ELEMENT) : 
  S with type e = D.t and type t = D.t list

Collection of elements based on a List, order matters but difference display is very simple. It stops at the first element which differs.

val pp_comma_separator : Format.formatter -> unit -> unit

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Signatures
Implementations