diff options
Diffstat (limited to 'users/grfn/xanthous/test/Xanthous/RandomSpec.hs')
| -rw-r--r-- | users/grfn/xanthous/test/Xanthous/RandomSpec.hs | 45 |
1 files changed, 0 insertions, 45 deletions
diff --git a/users/grfn/xanthous/test/Xanthous/RandomSpec.hs b/users/grfn/xanthous/test/Xanthous/RandomSpec.hs deleted file mode 100644 index c88bd95629..0000000000 --- a/users/grfn/xanthous/test/Xanthous/RandomSpec.hs +++ /dev/null @@ -1,45 +0,0 @@ --------------------------------------------------------------------------------- -module Xanthous.RandomSpec (main, test) where --------------------------------------------------------------------------------- -import Test.Prelude --------------------------------------------------------------------------------- -import Control.Monad.Random --------------------------------------------------------------------------------- -import Xanthous.Random -import Xanthous.Orphans () -import qualified Data.Interval as Interval -import Data.Interval (Interval, Extended (Finite), (<=..<=)) --------------------------------------------------------------------------------- - -main :: IO () -main = defaultMain test - -test :: TestTree -test = testGroup "Xanthous.Random" - [ testGroup "chooseSubset" - [ testProperty "chooses a subset" - $ \(l :: [Int]) (Positive (r :: Double)) -> randomTest $ do - ss <- chooseSubset r l - pure $ all (`elem` l) ss - ] - , testGroup "chooseRange" - [ testProperty "chooses in the range" - $ \(rng :: Interval Int) -> - not (Interval.null rng) - ==> randomTest ( do - chooseRange rng >>= \case - Just r -> pure - . counterexample (show r) - $ r `Interval.member` rng - Nothing -> pure $ property Discard - ) - , testProperty "nonEmpty range is never empty" - $ \ (lower :: Int) (NonZero diff) -> randomTest $ do - let upper = lower + diff - r <- chooseRange (Finite lower <=..<= Finite upper) - pure $ isJust r - - ] - ] - where - randomTest prop = evalRandT prop . mkStdGen =<< arbitrary |