heck

Abstract unit test interface

Version on this page:1.0.0.0
Stackage Nightly 2026-01-10:1.0.0.0
Latest on Hackage:1.0.0.1

See all snapshots heck appears in

0BSD licensed
Maintained by Taylor Fausak
This version can be pinned in stack with:heck-1.0.0.0@sha256:46a009576abe6fa2b6691d671aa489f29c31d16d77cdf18fece441f2f20fe02a,833

Module documentation for 1.0.0.0

Depends on 1 package(full list with versions):
base
Used by 1 package in nightly-2026-01-10(full list with versions):
saturn

Heck

Heck is a Haskell library that provides a abstract unit test interface. It can be used to write tests without depending on any particular test library.

Example

import Heck

spec :: (Applicative m, Monad n) => Test m n -> n ()
spec t = describe t "something" $ do
  it t "works" $ do
    assertEq t 'b' (max 'a' 'b')
  it t "fails" $ do
    assertEq t "expected" "actual"

Changes

Change log

Heck follows the Package Versioning Policy. You can find release notes on GitHub.