82ecd61f5c
Change-Id: I6c6847fac56f0a9a1a2209792e00a3aec5e672b9 Reviewed-on: https://cl.tvl.fyi/c/depot/+/10809 Autosubmit: aspen <root@gws.fyi> Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI Reviewed-by: lukegb <lukegb@tvl.fyi>
46 lines
1.6 KiB
Haskell
46 lines
1.6 KiB
Haskell
module Xanthous.UtilSpec (main, test) where
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import Test.Prelude
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import Xanthous.Util
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import Control.Monad.State.Lazy (execState)
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main :: IO ()
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main = defaultMain test
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test :: TestTree
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test = testGroup "Xanthous.Util"
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[ testGroup "smallestNotIn"
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[ testCase "examples" $ do
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smallestNotIn [7 :: Word, 3, 7] @?= 0
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smallestNotIn [7 :: Word, 0, 1, 3, 7] @?= 2
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, testProperty "returns an element not in the list" $ \(xs :: [Word]) ->
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smallestNotIn xs `notElem` xs
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, testProperty "pred return is in the list" $ \(xs :: [Word]) ->
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let res = smallestNotIn xs
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in res /= 0 ==> pred res `elem` xs
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, testProperty "ignores order" $ \(xs :: [Word]) ->
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forAll (shuffle xs) $ \shuffledXs ->
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smallestNotIn xs === smallestNotIn shuffledXs
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]
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, testGroup "takeWhileInclusive"
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[ testProperty "takeWhileInclusive (const True) ≡ id"
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$ \(xs :: [Int]) -> takeWhileInclusive (const True) xs === xs
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]
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, testGroup "endoTimes"
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[ testCase "endoTimes 4 succ 5"
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$ endoTimes (4 :: Int) succ (5 :: Int) @?= 9
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]
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, testGroup "modifyKL"
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[ testCase "_1 += 1"
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$ execState (modifyKL _1 $ pure . succ) (1 :: Int, 2 :: Int) @?= (2, 2)
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]
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, testGroup "removeFirst"
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[ testCase "example" $
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removeFirst @[Int] (> 5) [1..10] @?= [1, 2, 3, 4, 5, 7, 8, 9, 10]
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, testProperty "the result is the right length" $ \(xs :: [Int]) p ->
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length (removeFirst p xs) `elem` [length xs, length xs - 1]
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]
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, testGroup "AlphaChar"
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[ testCase "succ 'z'" $ succ (AlphaChar 'z') @?= AlphaChar 'A'
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]
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]
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