tvl-depot/users/glittershark/xanthous/test/Xanthous/Data/NestedMapSpec.hs
Vincent Ambo 2edb963b97 Add 'users/glittershark/xanthous/' from commit '53b56744f4335c038724a1bcffc27a7eb8cf6a6d'
git-subtree-dir: users/glittershark/xanthous
git-subtree-mainline: 91f53f02d8
git-subtree-split: 53b56744f4
2020-06-16 01:05:44 +01:00

20 lines
891 B
Haskell

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module Xanthous.Data.NestedMapSpec (main, test) where
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import Test.Prelude
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import Test.QuickCheck.Instances.Semigroup ()
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import qualified Xanthous.Data.NestedMap as NM
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main :: IO ()
main = defaultMain test
test :: TestTree
test = testGroup "Xanthous.Data.NestedMap"
[ testProperty "insert/lookup" $ \nm ks v ->
let nm' = NM.insert ks v nm
in counterexample ("inserted: " <> show nm')
$ NM.lookup @Map @Int @Int ks nm' === Just (NM.Val v)
]