tasty-lens: Tasty TestTrees for Lens validation

[ bsd3, lenses, library, testing ] [ Propose Tags ]

Preassembled tasty TestTrees for property testing Lenses, Setters, Traversals, Isos and Prisms laws.

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Versions [RSS] 0.3, 0.3.1
Change log CHANGELOG.md
Dependencies base (>=4.6 && <4.9), lens (>=, smallcheck (>=1.1.1), smallcheck-lens (>=0.3), tagged (>=0.7.2), tasty (>=0.10), tasty-smallcheck (>= [details]
License BSD-3-Clause
Author Danny Navarro
Maintainer j@dannynavarro.net
Category Testing, Lenses
Home page https://github.com/jdnavarro/tasty-lens
Bug tracker https://github.com/jdnavarro/tasty-lens/issues
Source repo head: git clone git://github.com/jdnavarro/tasty-lens.git
Uploaded by jdnavarro at 2015-09-23T10:55:35Z
Reverse Dependencies 1 direct, 0 indirect [details]
Downloads 1379 total (7 in the last 30 days)
Rating (no votes yet) [estimated by Bayesian average]
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Status Docs available [build log]
Last success reported on 2015-09-23 [all 1 reports]

Readme for tasty-lens-0.3.1

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Tasty Lens

Hackage Version Build Status

Preassembled tasty TestTrees with sensible defaults for the validation of:

  • Lens
  • Setter
  • Traversal
  • Iso
  • Prism

Although these tests offer weaker guarantees compared to manually proving the laws through equational reasoning, they can still be useful for regression testing where you don't want to manually proof every time you make a slight change that could affect the laws.

It uses smallcheck-lens under the hood. If you don't find any functions to create the TestTrees you are looking for, you may want to use the smallcheck-lens package directly. In such case you can still check this package as a reference to implement your own smallcheck-lens TestTrees.

Check the tests in this package for usage examples.


Contributions and bug reports are welcome!

Please feel free to contact jdnavarro on the #haskell IRC channel on irc.freenode.net.