The testing-type-modifiers package

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Property based testing libraries such as QuickCheck tend to include type modifiers. Most of them are used to quantify over subsets of a type. For example a property on non-empty lists:

  prop_tail_length (NonEmpty xs) = length (tail xs) == length xs - 1

This library is intended to supply these modifiers to be used by testing libraries, in an effort to make properties more portable between testing frameworks.

For every modifier it also provides an access function that converts to the underlying type, which enables point-free style properties as such:

prop_tail_length2 = (> 0) . length . nonEmpty

Properties

Versions0.1.0.0, 0.1.0.0, 0.1.0.1
Dependenciesbase (==4.*) [details]
LicensePublicDomain
AuthorJonas Duregård
Maintainerjonas.duregard@gmail.com
CategoryTesting
Source repositoryhead: git clone https://github.com/JonasDuregard/testing-type-modifiers
UploadedWed Jul 1 09:22:42 UTC 2015 by JonasDuregard

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