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|
{-# LANGUAGE DeriveGeneric, StandaloneDeriving #-}
{-# OPTIONS_GHC -fno-warn-orphans #-}
module Main (main) where
import Control.Applicative ((<|>))
import Control.Exception (IOException, catch)
import Control.Monad (when)
import Data.Foldable (traverse_)
import Data.List (foldl')
import Data.Traversable (for)
import GHC.Generics (Generic)
import Prelude ()
import Prelude.Compat
import System.Directory (getDirectoryContents)
import System.Exit (exitFailure)
import System.FilePath
import System.IO
import Data.TreeDiff
import Data.TreeDiff.Golden
import qualified Options.Applicative as O
import Documentation.Haddock.Types
import qualified Documentation.Haddock.Parser as Parse
type Doc id = DocH () id
data Fixture = Fixture
{ fixtureName :: FilePath
, fixtureOutput :: FilePath
}
deriving Show
data Result = Result
{ _resultSuccess :: !Int
, _resultTotal :: !Int
}
deriving Show
combineResults :: Result -> Result -> Result
combineResults (Result s t) (Result s' t') = Result (s + s') (t + t')
readFixtures :: IO [Fixture]
readFixtures = do
let dir = "fixtures/examples"
files <- getDirectoryContents dir
let inputs = filter (\fp -> takeExtension fp == ".input") files
return $ flip map inputs $ \fp -> Fixture
{ fixtureName = dir </> fp
, fixtureOutput = dir </> fp -<.> "parsed"
}
goldenFixture
:: String
-> IO Expr
-> IO Expr
-> (Expr -> Expr -> IO (Maybe String))
-> (Expr -> IO ())
-> IO Result
goldenFixture name expect actual cmp wrt = do
putStrLn $ "running " ++ name
a <- actual
e <- expect `catch` handler a
mres <- cmp e a
case mres of
Nothing -> return (Result 1 1)
Just str -> do
putStrLn str
return (Result 0 1)
where
handler :: Expr -> IOException -> IO Expr
handler a exc = do
putStrLn $ "Caught " ++ show exc
putStrLn "Accepting the test"
wrt a
return a
runFixtures :: [Fixture] -> IO ()
runFixtures fixtures = do
results <- for fixtures $ \(Fixture i o) -> do
let name = takeBaseName i
let readDoc = do
input <- readFile i
return (parseString input)
ediffGolden goldenFixture name o readDoc
case foldl' combineResults (Result 0 0) results of
Result s t -> do
putStrLn $ "Fixtures: success " ++ show s ++ "; total " ++ show t
when (s /= t) exitFailure
listFixtures :: [Fixture] -> IO ()
listFixtures = traverse_ $ \(Fixture i _) -> do
let name = takeBaseName i
putStrLn name
acceptFixtures :: [Fixture] -> IO ()
acceptFixtures = traverse_ $ \(Fixture i o) -> do
input <- readFile i
let doc = parseString input
let actual = show (prettyExpr $ toExpr doc) ++ "\n"
writeFile o actual
parseString :: String -> Doc String
parseString = Parse.toRegular . _doc . Parse.parseParas Nothing
data Cmd = CmdRun | CmdAccept | CmdList
main :: IO ()
main = do
hSetBuffering stdout NoBuffering -- For interleaved output when debugging
runCmd =<< O.execParser opts
where
opts = O.info (O.helper <*> cmdParser) O.fullDesc
cmdParser :: O.Parser Cmd
cmdParser = cmdRun <|> cmdAccept <|> cmdList <|> pure CmdRun
cmdRun = O.flag' CmdRun $ mconcat
[ O.long "run"
, O.help "Run parser fixtures"
]
cmdAccept = O.flag' CmdAccept $ mconcat
[ O.long "accept"
, O.help "Run & accept parser fixtures"
]
cmdList = O.flag' CmdList $ mconcat
[ O.long "list"
, O.help "List fixtures"
]
runCmd :: Cmd -> IO ()
runCmd CmdRun = readFixtures >>= runFixtures
runCmd CmdList = readFixtures >>= listFixtures
runCmd CmdAccept = readFixtures >>= acceptFixtures
-------------------------------------------------------------------------------
-- Orphans
-------------------------------------------------------------------------------
deriving instance Generic (DocH mod id)
instance (ToExpr mod, ToExpr id) => ToExpr (DocH mod id)
deriving instance Generic (Header id)
instance ToExpr id => ToExpr (Header id)
deriving instance Generic (Hyperlink id)
instance ToExpr id => ToExpr (Hyperlink id)
deriving instance Generic Picture
instance ToExpr Picture
deriving instance Generic Example
instance ToExpr Example
deriving instance Generic (Table id)
instance ToExpr id => ToExpr (Table id)
deriving instance Generic (TableRow id)
instance ToExpr id => ToExpr (TableRow id)
deriving instance Generic (TableCell id)
instance ToExpr id => ToExpr (TableCell id)
|
