I'm struggling a little to get this basic test-framework example to work with QuickCheck2. I get the following error that is mentioned on the above page, due to the example's use of QuickCheck 1. I assume that using QuickCheck2 is generally preferred, but how do I use it with test-framework?
Error:
No instance for (QuickCheck-1.2.0.0:Test.QuickCheck.Testable
(Gen Prop))
Thanks in advance.
If I import Test.Framework.Providers.QuickCheck2, I get the following error:
del-me.hs:41:17:
No instance for (QuickCheck-2.5.1.1:Test.QuickCheck.Property.Testable
(Gen Prop))
arising from a use of `testProperty'
Possible fix:
add an instance declaration for
(QuickCheck-2.5.1.1:Test.QuickCheck.Property.Testable (Gen Prop))
In the expression: testProperty "sort2" prop_sort2
In the second argument of `testGroup', namely
`[testProperty "sort1" prop_sort1, testProperty "sort2" prop_sort2,
testProperty "sort3" prop_sort3]'
In the expression:
testGroup
"Sorting Group 1"
[testProperty "sort1" prop_sort1, testProperty "sort2" prop_sort2,
testProperty "sort3" prop_sort3]
Import Test.Framework.Providers.QuickCheck2 from the test-framework-quickcheck2 package, instead of Test.Framework.Providers.QuickCheck from the test-framework-quickcheck package.