tvl-depot/test/Xanthous/UtilSpec.hs
Griffin Smith de8052cef8 Allow eating edible items
Add menu support to the prompt system, and an "Eat" command that prompts
for an item to eat and eats the item the character specifies, restoring
an amount of hitpoints configurable via the item raw type.
2019-10-06 12:50:29 -04:00

24 lines
764 B
Haskell

module Xanthous.UtilSpec (main, test) where
import Test.Prelude
import Xanthous.Util
main :: IO ()
main = defaultMain test
test :: TestTree
test = testGroup "Xanthous.Util"
[ testGroup "smallestNotIn"
[ testCase "examples" $ do
smallestNotIn [7 :: Word, 3, 7] @?= 0
smallestNotIn [7 :: Word, 0, 1, 3, 7] @?= 2
, testProperty "returns an element not in the list" $ \(xs :: [Word]) ->
smallestNotIn xs `notElem` xs
, testProperty "pred return is in the list" $ \(xs :: [Word]) ->
let res = smallestNotIn xs
in res /= 0 ==> pred res `elem` xs
, testProperty "ignores order" $ \(xs :: [Word]) ->
forAll (shuffle xs) $ \shuffledXs ->
smallestNotIn xs === smallestNotIn shuffledXs
]
]