QuickCheck: Automatic testing of Haskell programs

[ bsd3, library, testing ] [ Propose Tags ]

QuickCheck is a library for random testing of program properties. The programmer provides a specification of the program, in the form of properties which functions should satisfy, and QuickCheck then tests that the properties hold in a large number of randomly generated cases. Specifications are expressed in Haskell, using combinators provided by QuickCheck. QuickCheck provides combinators to define properties, observe the distribution of test data, and define test data generators.

Most of QuickCheck's functionality is exported by the main Test.QuickCheck module. The main exception is the monadic property testing library in Test.QuickCheck.Monadic.

If you are new to QuickCheck, you can try looking at the following resources:

The quickcheck-instances companion package provides instances for types in Haskell Platform packages at the cost of additional dependencies.

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Automatic Flags

Build Test.QuickCheck.All, which uses Template Haskell.


Use -f <flag> to enable a flag, or -f -<flag> to disable that flag. More info


Note: This package has metadata revisions in the cabal description newer than included in the tarball. To unpack the package including the revisions, use 'cabal get'.

Maintainer's Corner

Package maintainers

For package maintainers and hackage trustees


Versions [RSS] 1.0,,,, 2.1,,,, 2.1.1,, 2.1.2, 2.2, 2.3,,, 2.4,, 2.4.1,, 2.4.2, 2.5, 2.5.1,, 2.6, 2.7, 2.7.1, 2.7.2, 2.7.3, 2.7.4, 2.7.5, 2.7.6, 2.8, 2.8.1, 2.8.2, 2.9, 2.9.1, 2.9.2, 2.10,, 2.10.1, 2.11, 2.11.1, 2.11.2, 2.11.3, 2.12, 2.12.1, 2.12.2, 2.12.3, 2.12.4, 2.12.5, 2.12.6,, 2.13, 2.13.1, 2.13.2, 2.14, 2.14.1, 2.14.2, 2.14.3, 2.15, (info)
Change log changelog
Dependencies base (>=4.3 && <5), containers, deepseq (>=, ghc-prim, old-locale, old-time, random (>= && <1.2), splitmix (>=0.0.4 && <0.1), template-haskell (>=2.4), transformers (>=0.3) [details]
License BSD-3-Clause
Copyright 2000-2019 Koen Claessen, 2006-2008 Björn Bringert, 2009-2019 Nick Smallbone
Author Koen Claessen <koen@chalmers.se>
Maintainer Nick Smallbone <nick@smallbone.se>
Revised Revision 1 made by phadej at 2020-05-28T16:13:47Z
Category Testing
Home page https://github.com/nick8325/quickcheck
Bug tracker https://github.com/nick8325/quickcheck/issues
Source repo head: git clone https://github.com/nick8325/quickcheck
this: git clone https://github.com/nick8325/quickcheck(tag 2.14)
Uploaded by NickSmallbone at 2020-03-28T00:17:49Z
Distributions Arch:2.14.3, Debian:2.13.2, Fedora:2.14.3, FreeBSD:2.8.1, LTSHaskell:2.14.3, NixOS:2.14.3, Stackage:2.14.3, openSUSE:2.14.3
Reverse Dependencies 785 direct, 7918 indirect [details]
Downloads 435449 total (782 in the last 30 days)
Rating 2.75 (votes: 20) [estimated by Bayesian average]
Your Rating
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Status Docs available [build log]
Last success reported on 2020-03-28 [all 1 reports]

Readme for QuickCheck-2.14

[back to package description]
This is QuickCheck 2, a library for random testing of program properties.

Install it in the usual way:

$ cabal install

The quickcheck-instances [1] companion package provides instances for types in
Haskell Platform packages at the cost of additional dependencies.

The make-hugs script makes a Hugs-compatible version of QuickCheck.
It may also be useful for other non-GHC implementations.

[1]: http://hackage.haskell.org/package/quickcheck-instances