| Safe Haskell | None |
|---|---|
| Language | Haskell2010 |
Test.Validity.Shrinking.Property
Description
Tests for shrinking functions
Synopsis
- 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
- shrinkingStaysValidWithLimit :: (Show a, Validity a) => Gen a -> (a -> [a]) -> Int -> Property
- shrinkingPreserves :: Show a => Gen a -> (a -> [a]) -> (a -> Bool) -> Property
- shrinkingPreservesWithLimit :: Show a => Gen a -> (a -> [a]) -> Int -> (a -> Bool) -> Property
- shrinkDoesNotShrinkToItself :: (Show a, Eq a, GenValid a) => (a -> [a]) -> Property
- shrinkDoesNotShrinkToItselfWithLimit :: (Show a, Eq a, GenValid a) => (a -> [a]) -> Int -> Property
- shrinkDoesNotShrinkToItselfOnValid :: (Show a, Eq a, GenValid a) => (a -> [a]) -> Property
- shrinkDoesNotShrinkToItselfOnValidWithLimit :: (Show a, Eq a, GenValid a) => (a -> [a]) -> Int -> Property
- doesNotShrinkToItself :: (Show a, Eq a) => Gen a -> (a -> [a]) -> Property
- doesNotShrinkToItselfWithLimit :: (Show a, Eq a) => Gen a -> (a -> [a]) -> Int -> Property
Documentation
shrinkPreservesValidOnGenValid :: (Show a, GenValid a) => (a -> [a]) -> Property Source #
shrinkPreservesValidOnGenValid ((:[]) :: Int -> [Int])
shrinkValidPreservesValid :: (Show a, GenValid a) => Gen a -> Property Source #
shrinkValidPreservesValid (pure 5 :: Gen Rational)
shrinkingStaysValid :: (Show a, Validity a) => Gen a -> (a -> [a]) -> Property Source #
shrinkingStaysValid (pure 5 :: Gen Double) (\d -> [d - 1, d - 2])
shrinkingStaysValidWithLimit :: (Show a, Validity a) => Gen a -> (a -> [a]) -> Int -> Property Source #
shrinkingStaysValidWithLimit (pure 5 :: Gen Double) (\d -> [d - 1, read "NaN"]) 1
shrinkingPreserves :: Show a => Gen a -> (a -> [a]) -> (a -> Bool) -> Property Source #
shrinkingPreserves (pure 5 :: Gen Int) (:[]) (== 5)
shrinkingPreservesWithLimit :: Show a => Gen a -> (a -> [a]) -> Int -> (a -> Bool) -> Property Source #
shrinkingPreservesWithLimit (pure 4) (:[]) 100 (== 4)
shrinkDoesNotShrinkToItself :: (Show a, Eq a, GenValid a) => (a -> [a]) -> Property Source #
shrinkDoesNotShrinkToItself (shrinkValid :: Double -> [Double])
shrinkDoesNotShrinkToItselfWithLimit :: (Show a, Eq a, GenValid a) => (a -> [a]) -> Int -> Property Source #
shrinkDoesNotShrinkToItselfWithLimit (shrinkValid :: Double -> [Double]) 100
shrinkDoesNotShrinkToItselfOnValid :: (Show a, Eq a, GenValid a) => (a -> [a]) -> Property Source #
shrinkDoesNotShrinkToItselfOnValid (shrinkValid :: Rational -> [Rational])
shrinkDoesNotShrinkToItselfOnValidWithLimit :: (Show a, Eq a, GenValid a) => (a -> [a]) -> Int -> Property Source #
shrinkDoesNotShrinkToItselfOnValidWithLimit (shrinkValid :: Rational -> [Rational]) 100