hedgehog-quickcheck
Use QuickCheck generators in Hedgehog and vice versa.
| LTS Haskell 23.21: | 0.1.1@rev:8 |
| Stackage Nightly 2025-05-06: | 0.1.1@rev:8 |
| Latest on Hackage: | 0.1.1@rev:8 |
Maintained by Jacob Stanley
This version can be pinned in stack with:
hedgehog-quickcheck-0.1.1@sha256:35d4db5096299ab32fbaef8a20a13e34bc687f38fa10144af45b51380d4c5298,1513Module documentation for 0.1.1
- Hedgehog
- Hedgehog.Gen
- Test
- Test.QuickCheck
Depends on 4 packages(full list with versions):
hedgehog-quickcheck 
Hedgehog will eat all your bugs.
Use QuickCheck generators in Hedgehog and vice versa.
Example
The Hedgehog.Gen.QuickCheck module allows the use of QuickCheck generators inside Hedgehog.
{-# LANGUAGE TemplateHaskell #-}
import Hedgehog
import qualified Hedgehog.Gen as Gen
import qualified Hedgehog.Gen.QuickCheck as Gen
import qualified Hedgehog.Range as Range
Once you have your imports set up, you can write a property which mixes QuickCheck and Hedgehog generators together:
prop_reverse :: Property
prop_reverse =
property $ do
xs <- forAll $ Gen.list (Range.linear 0 100) (Gen.arbitrary :: Gen Char)
reverse (reverse xs) === xs
And add the Template Haskell splice which will discover your properties:
tests :: IO Bool
tests =
checkParallel $$(discover)
You can then load the module in GHCi, and run it:
λ tests
━━━ Test.Example ━━━
✓ prop_reverse passed 100 tests.