QuickCheck: Automatic testing of Haskell programs

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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 official QuickCheck manual. It's a bit out-of-date in some details and doesn't cover newer QuickCheck features, but is still full of good advice.
https://begriffs.com/posts/2017-01-14-design-use-quickcheck.html, a detailed tutorial written by a user of QuickCheck.

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

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Properties

Versions	1.0, 1.1.0.0, 1.2.0.0, 1.2.0.1, 2.1, 2.1.0.1, 2.1.0.2, 2.1.0.3, 2.1.1, 2.1.1.1, 2.1.2, 2.2, 2.3, 2.3.0.1, 2.3.0.2, 2.4, 2.4.0.1, 2.4.1, 2.4.1.1, 2.4.2, 2.5, 2.5.1, 2.5.1.1, 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, 2.10.0.1, 2.10.1, 2.11, 2.11.1, 2.11.2, 2.11.3, 2.12, 2.12.1, 2.12.1, 2.12.2, 2.12.3, 2.12.4, 2.12.5, 2.12.6, 2.12.6.1, 2.13, 2.13.1, 2.13.2, 2.14, 2.14.1, 2.14.2, 2.14.3, 2.15, 2.15.0.1
Change log	changelog
Dependencies	base (>=4.3 && <5), containers, deepseq, erf (>=2), ghc-prim, old-locale, old-time, random, template-haskell (>=2.4), tf-random (>=0.4), transformers (>=0.3) [details]
License	BSD-3-Clause
Copyright	2000-2018 Koen Claessen, 2006-2008 Björn Bringert, 2009-2018 Nick Smallbone
Author	Koen Claessen <koen@chalmers.se>
Maintainer	Nick Smallbone <nick@smallbone.se>
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 2.12.1)
Uploaded	by NickSmallbone at 2018-09-06T13:08:45Z

Modules

[Index] [Quick Jump]

Test
- Test.QuickCheck
  - Test.QuickCheck.All
  - Test.QuickCheck.Arbitrary
  - Test.QuickCheck.Exception
  - Test.QuickCheck.Features
  - Test.QuickCheck.Function
  - Test.QuickCheck.Gen
    - Test.QuickCheck.Gen.Unsafe
  - Test.QuickCheck.Modifiers
  - Test.QuickCheck.Monadic
  - Test.QuickCheck.Poly
  - Test.QuickCheck.Property
  - Test.QuickCheck.Random
  - Test.QuickCheck.State
  - Test.QuickCheck.Test
  - Test.QuickCheck.Text

Flags

Automatic Flags

Name	Description	Default
templatehaskell	Build Test.QuickCheck.All, which uses Template Haskell.	Enabled

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

Downloads

QuickCheck-2.12.1.tar.gz [browse] (Cabal source package)
Package description (as included in the package)

Maintainer's Corner

Package maintainers

DonaldStewart, KoenClaessen, NickSmallbone, SimonMarlow

For package maintainers and hackage trustees

edit package information

Readme for QuickCheck-2.12.1

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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.

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