77 lines
2.0 KiB
Haskell
77 lines
2.0 KiB
Haskell
{-
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hamming
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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 Hamming.Word16Spec (spec) where
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import Data.Word (Word16)
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import Hamming
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import Test.Hspec (Spec, context, describe, it, shouldBe)
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spec :: Spec
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spec = describe "Word16" $ do
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setCheckBitsSpec
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isValidSpec
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correctErrorsSpec
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setCheckBitsSpec :: Spec
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setCheckBitsSpec = describe "setCheckBits" $ mapM_
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( \(desc, code, expected) -> context desc $ let
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actual = setCheckBits code
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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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[ ( "all zeroes", 0, 0 )
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, ( "all ones", 0xffff, 0xffff )
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, ( "no check bits", noChkBits, withChkBits )
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, ( "bad check bits", badChkBits, withChkBits )
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]
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isValidSpec :: Spec
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isValidSpec = describe "isValid" $ mapM_
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( \(desc, code, expected) -> context desc $ let
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actual = isValid code
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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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[ ( "all zeroes", 0, True )
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, ( "all ones", 0xffff, True )
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, ( "valid", withChkBits, True )
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, ( "no check bits", noChkBits, False )
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, ( "bad check bits", badChkBits, False )
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]
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correctErrorsSpec :: Spec
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correctErrorsSpec = describe "correctErrors" $
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return ()
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noChkBits :: Word16
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noChkBits = 0x34c0
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withChkBits :: Word16
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withChkBits = 0x35c5
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badChkBits :: Word16
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badChkBits = 0x34d2
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--jl
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