ClassLaws: Stating and checking laws for type class methods
The specification of a class in Haskell often starts with stating, in text, the laws that should be satisfied by methods defined in instances of the class, followed by the type of the methods of the class. The ClassLaws library is a framework that supports testing such class laws using QuickCheck. Our framework is a light-weight class law testing framework, which requires a limited amount of work per class law, and per datatype for which the class law is tested. We also show how to test class laws with partially-defined values. Using partially-defined values, we show that the standard lazy and strict implementations of the state monad do not satisfy the expected laws. More information can be found at http://wiki.portal.chalmers.se/cse/pmwiki.php/FP/ClassLaws. Built with ghc-7.4.2 and ghc-7.6.1. (Fails to build with ghc-7.2.2 due to http://hackage.haskell.org/trac/ghc/ticket/5745. Could be worked around.)
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- ClassLaws-0.3.1.0.tar.gz [browse] (Cabal source package)
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Versions [RSS] | 0.3.0.0, 0.3.0.1, 0.3.0.2, 0.3.1.0 |
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Dependencies | base (>=4.1.0.0 && <5), ChasingBottoms (>=1.3 && <2), mtl (>=1 && <3), QuickCheck (>=2 && <2.5) [details] |
License | BSD-3-Clause |
Author | Patrik Jansson and Johan Jeuring |
Maintainer | patrikj@chalmers.se |
Category | Testing |
Home page | http://wiki.portal.chalmers.se/cse/pmwiki.php/FP/ClassLaws |
Uploaded | by PatrikJansson at 2012-09-14T15:09:05Z |
Distributions | |
Reverse Dependencies | 1 direct, 0 indirect [details] |
Downloads | 3962 total (5 in the last 30 days) |
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Status | Docs uploaded by user Build status unknown [no reports yet] |