diff options
Diffstat (limited to 'users/grfn/xanthous/test/Xanthous/UtilSpec.hs')
| -rw-r--r-- | users/grfn/xanthous/test/Xanthous/UtilSpec.hs | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/users/grfn/xanthous/test/Xanthous/UtilSpec.hs b/users/grfn/xanthous/test/Xanthous/UtilSpec.hs index 01e8e402c5..0d6b718bc3 100644 --- a/users/grfn/xanthous/test/Xanthous/UtilSpec.hs +++ b/users/grfn/xanthous/test/Xanthous/UtilSpec.hs @@ -34,4 +34,10 @@ test = testGroup "Xanthous.Util" [ testCase "_1 += 1" $ execState (modifyKL _1 $ pure . succ) (1 :: Int, 2 :: Int) @?= (2, 2) ] + , testGroup "removeFirst" + [ testCase "example" $ + removeFirst @[Int] (> 5) [1..10] @?= [1, 2, 3, 4, 5, 7, 8, 9, 10] + , testProperty "the result is the right length" $ \(xs :: [Int]) p -> + length (removeFirst p xs) `elem` [length xs, length xs - 1] + ] ] |