elm/exercises/accumulate/AccumulateTests.elm

module Main exposing (..)

import ElmTest exposing (..)
import Accumulate exposing (accumulate)
import String


square : Int -> Int
square x =
  x * x


tests : Test
tests =
  suite
    "Accumulate"
    [ test
        "[]] Accumulate"
        (assertEqual [] (accumulate square []))
    , test
        "square Accumulate"
        (assertEqual [ 1, 4, 9 ] (accumulate square [ 1, 2, 3 ]))
    , test
        "toUpper Accumulate"
        (assertEqual [ "HELLO", "WORLD" ] (accumulate String.toUpper [ "hello", "world" ]))
    , test
        "reverse Accumulate"
        (assertEqual [ "olleh", "dlrow" ] (accumulate String.reverse [ "hello", "world" ]))
    ]


main : Program Never
main =
  runSuite tests