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74 lines
1.8 KiB
Elm
74 lines
1.8 KiB
Elm
module Main (..) where
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import Task
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import Console
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import ElmTest exposing (..)
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import Strain exposing (keep, discard)
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import String
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even =
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\number -> number % 2 == 0
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odd =
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\number -> number % 2 == 1
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isFirstLetter =
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\letter -> \word -> (String.left 1 word) == letter
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lessThanTen =
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\num -> num < 10
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tests : Test
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tests =
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suite
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"Strain"
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[ test
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"empty keep"
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(assertEqual [] (keep lessThanTen []))
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, test
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"keep everything"
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(assertEqual [ 1, 2, 3 ] (keep lessThanTen [ 1, 2, 3 ]))
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, test
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"keep first and last"
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(assertEqual [ 1, 3 ] (keep odd [ 1, 2, 3 ]))
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, test
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"keep nothing"
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(assertEqual [] (keep even [ 1, 3, 5, 7 ]))
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, test
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"keep neither first nor last"
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(assertEqual [ 2 ] (keep even [ 1, 2, 3 ]))
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, test
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"keep strings"
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(assertEqual
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[ "zebra", "zombies", "zealot" ]
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(keep (isFirstLetter "z") [ "apple", "zebra", "banana", "zombies", "cherimoya", "zealot" ])
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)
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, test
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"empty discard"
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(assertEqual [] (discard lessThanTen []))
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, test
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"discard everything"
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(assertEqual [] (discard lessThanTen [ 1, 2, 3 ]))
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, test
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"discard first and last"
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(assertEqual [ 2 ] (discard odd [ 1, 2, 3 ]))
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, test
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"discard nothing"
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(assertEqual [ 1, 3, 5, 7 ] (discard even [ 1, 3, 5, 7 ]))
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, test
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"discard neither first nor last"
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(assertEqual [ 1, 3 ] (discard even [ 1, 2, 3 ]))
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, test
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"discard strings"
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(assertEqual [ "apple", "banana", "cherimoya" ] (discard (isFirstLetter "z") [ "apple", "zebra", "banana", "zombies", "cherimoya", "zealot" ]))
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]
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port runner : Signal (Task.Task x ())
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port runner =
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Console.run (consoleRunner tests)
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