elm/exercises/say/SayTests.elm

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2016-05-02 00:38:11 +00:00
module Main exposing (..)
import ElmTest exposing (..)
import Say exposing (say, SayError(Negative, TooLarge))
tests : Test
tests =
suite "Series"
[ test "one"
(assertEqual (Ok "one")
(say 1)
)
, test "fourteen"
(assertEqual (Ok "fourteen")
(say 14)
)
, test "twenty"
(assertEqual (Ok "twenty")
(say 20)
)
, test "twenty-two"
(assertEqual (Ok "twenty-two")
(say 22)
)
, test "one hundred"
(assertEqual (Ok "one hundred")
(say 100)
)
, test "one hundred twenty"
(assertEqual (Ok "one hundred and twenty")
(say 120)
)
, test "one hundred twenty-three"
(assertEqual (Ok "one hundred and twenty-three")
(say 123)
)
, test "one thousand"
(assertEqual (Ok "one thousand")
(say 1000)
)
, test "one thousand two hundred thirty-four"
(assertEqual (Ok "one thousand two hundred and thirty-four")
(say 1234)
)
, test "one million"
(assertEqual (Ok "one million")
(say 1000000)
)
, test "one million two"
(assertEqual (Ok "one million and two")
(say 1000002)
)
, test "1002345"
(assertEqual (Ok "one million two thousand three hundred and forty-five")
(say 1002345)
)
, test "one billion"
(assertEqual (Ok "one billion")
(say 1000000000)
)
, test "number too large"
(assertEqual (Err TooLarge)
(say 10000000000000000)
)
, test "negative number"
(assertEqual (Err Negative)
(say -42)
)
, test "zero"
(assertEqual (Ok "zero")
(say 0)
)
, test "987654321123"
(assertEqual
(Ok
("nine hundred and eighty-seven billion "
++ "six hundred and fifty-four million "
++ "three hundred and twenty-one thousand "
++ "one hundred and twenty-three"
)
)
(say 987654321123)
)
]
main : Program Never
main =
runSuite tests