implemented newAbacus
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@ -50,6 +50,7 @@ test-suite abacus-test
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type: exitcode-stdio-1.0
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main-is: Spec.hs
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other-modules:
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AbacusSpec
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Paths_abacus
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autogen-modules:
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Paths_abacus
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@ -28,13 +28,16 @@ module Abacus (Abacus, newAbacus) where
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import Abacus.Internal
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-- | Constructs the initial state of a new "Abacus"
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-- | Constructs the initial state of a new "Abacus"; will return
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-- "Nothing" if the input paramebers are invalid.
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newAbacus
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:: Int
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-- ^ The number of beads on each rung
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-- ^ The number of beads on each rung (must be at least one)
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-> Int
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-- ^ The number of rungs
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-- ^ The number of rungs (must be at least one)
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-> Maybe Abacus
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newAbacus = undefined
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newAbacus beads rungs = if beads < 1 || rungs < 1
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then Nothing
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else Just $ Abacus beads $ replicate rungs 0
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--jl
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@ -0,0 +1,45 @@
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{-
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abacus
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Copyright (C) Jonathan Lamothe <jonathan@jlamothe.net>
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Affero General Public License as
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published by the Free Software Foundation, either version 3 of the
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License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public
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License along with this program. If not, see
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<https://www.gnu.org/licenses/>.
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-}
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module AbacusSpec (spec) where
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import Test.Hspec (Spec, context, describe, it, shouldBe)
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import Abacus
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import Abacus.Internal
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spec :: Spec
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spec = describe "Abacus"
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newAbacusSpec
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newAbacusSpec :: Spec
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newAbacusSpec = describe "newAbacusSpec" $ mapM_
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( \(desc, beads, rungs, expected) -> context desc $ let
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actual = newAbacus beads rungs
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in it ("should be " ++ show expected) $
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actual `shouldBe` expected
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)
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[ ( "valid", 10, 3, Just $ Abacus 10 [0, 0, 0] )
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, ( "no beads", 0, 3, Nothing )
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, ( "no rungs", 10, 0, Nothing )
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]
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--jl
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@ -21,7 +21,10 @@ License along with this program. If not, see
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import Test.Hspec (hspec)
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import qualified AbacusSpec as Abacus
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main :: IO ()
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main = hspec $ return ()
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main = hspec
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Abacus.spec
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-- jl
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