| Copyright | (C) 2017 ATS Advanced Telematic Systems GmbH Li-yao Xia |
|---|---|
| License | BSD-style (see the file LICENSE) |
| Maintainer | Stevan Andjelkovic <stevan@advancedtelematic.com> |
| Stability | provisional |
| Portability | non-portable (GHC extensions) |
| Safe Haskell | Safe |
| Language | Haskell2010 |
Test.StateMachine.Utils
Description
This module exports some QuickCheck utility functions. Some of these should perhaps be upstreamed.
Synopsis
- liftProperty :: Monad m => Property -> PropertyM m ()
- whenFailM :: Monad m => IO () -> Property -> PropertyM m ()
- forAllShrinkShow :: Testable prop => Gen a -> (a -> [a]) -> (a -> String) -> (a -> prop) -> Property
- anyP :: (a -> Property) -> [a] -> Property
- shrinkPair :: (a -> [a]) -> (a, a) -> [(a, a)]
- shrinkPair' :: (a -> [a]) -> (b -> [b]) -> (a, b) -> [(a, b)]
- suchThatOneOf :: [(Int, Gen a)] -> (a -> Bool) -> Gen (Maybe a)
Documentation
liftProperty :: Monad m => Property -> PropertyM m () Source #
Lifts a plain property into a monadic property.
forAllShrinkShow :: Testable prop => Gen a -> (a -> [a]) -> (a -> String) -> (a -> prop) -> Property Source #
A variant of forAllShrink with an
explicit show function.
shrinkPair :: (a -> [a]) -> (a, a) -> [(a, a)] Source #
Same above, but for homogeneous pairs.
shrinkPair' :: (a -> [a]) -> (b -> [b]) -> (a, b) -> [(a, b)] Source #
Given shrinkers for the components of a pair we can shrink the pair.