40 lines
1.7 KiB
Haskell
40 lines
1.7 KiB
Haskell
{-# LANGUAGE TemplateHaskell #-}
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import Data.Vector (Vector)
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import Test.QuickCheck.All (quickCheckAll)
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import System.Exit (exitFailure, exitSuccess)
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import Language.Brainfuck.Instruction (Instruction)
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import qualified Data.Either as Either
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import qualified Language.Brainfuck as Brainfuck
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import qualified Arbitrary.ValidBrainfuckText as ValidBrainfuckText
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import qualified Arbitrary.InvalidBrainfuckText as InValidBrainfuckText
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import qualified Language.Brainfuck.Instruction.Compressed as CompressedInstruction
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-- | ValidBrainfuckText will produce a text with comments, it must be parsed correctly
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prop_acceptValidTexts :: ValidBrainfuckText.ValidBrainfuckText -> Bool
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prop_acceptValidTexts = Either.isRight . Brainfuck.parse . ValidBrainfuckText.get
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-- | InvalidBrainfuckText will insert unbalanced brackets, they must be rejected
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prop_rejectInvalidTexts :: InValidBrainfuckText.InvalidBrainfuckText -> Bool
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prop_rejectInvalidTexts = Either.isLeft . Brainfuck.parse . InValidBrainfuckText.get
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-- | Does rendering and parsing a vector of instructions yield the exact same result?
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prop_renderParseInverse :: Vector Instruction -> Bool
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prop_renderParseInverse source = Right source == (Brainfuck.parse . Brainfuck.render $ source)
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-- | Compressing and Uncompressing should be inverse. The opposite must not be true, since `compress $ replicate 300 Increment` is `Add 44`
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prop_CompressUncompressInverse :: Vector Instruction -> Bool
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prop_CompressUncompressInverse source = source == (CompressedInstruction.uncompress . CompressedInstruction.compress) source
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return [] -- template haskell guard
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runQuickCheck :: IO Bool
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runQuickCheck = $quickCheckAll
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main :: IO ()
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main = do
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quickCheckGood <- runQuickCheck
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if quickCheckGood then exitSuccess else exitFailure
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