Safe Haskell | Safe-Inferred |
---|---|
Language | Haskell2010 |
Tests for Shrinking functions
You will need TypeApplications
to use these.
Synopsis
- shrinkValidSpec :: forall a. (Show a, Eq a, Typeable a, GenValid a) => Spec
- shrinkValidSpecWithLimit :: forall a. (Show a, Eq a, Typeable a, GenValid a) => Int -> Spec
- shrinkValidPreservesValidOnGenValid :: forall a. (Show a, GenValid a) => Property
- shrinkValidPreservesValidOnGenValidWithLimit :: forall a. (Show a, GenValid a) => Int -> Property
- shrinkPreservesValidOnGenValid :: (Show a, GenValid a) => (a -> [a]) -> Property
- shrinkValidPreservesValid :: (Show a, GenValid a) => Gen a -> Property
- shrinkingStaysValid :: (Show a, Validity a) => Gen a -> (a -> [a]) -> Property
- shrinkingPreserves :: Show a => Gen a -> (a -> [a]) -> (a -> Bool) -> Property
- shrinkValidDoesNotShrinkToItself :: forall a. (Show a, Eq a, GenValid a) => Property
- shrinkValidDoesNotShrinkToItselfWithLimit :: forall a. (Show a, Eq a, GenValid a) => Int -> Property
Documentation
shrinkValidSpecWithLimit :: forall a. (Show a, Eq a, Typeable a, GenValid a) => Int -> Spec Source #
shrinkValidPreservesValidOnGenValidWithLimit :: forall a. (Show a, GenValid a) => Int -> Property Source #
shrinkPreservesValidOnGenValid :: (Show a, GenValid a) => (a -> [a]) -> Property #
shrinkPreservesValidOnGenValid ((:[]) :: Int -> [Int])
shrinkValidPreservesValid :: (Show a, GenValid a) => Gen a -> Property #
shrinkValidPreservesValid (pure 5 :: Gen Rational)
shrinkingStaysValid :: (Show a, Validity a) => Gen a -> (a -> [a]) -> Property #
shrinkingStaysValid (pure 5 :: Gen Double) (\d -> [d - 1, d - 2])