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{-# LANGUAGE CPP #-}
module Main where
#if ! MIN_VERSION_base(4,8,0)
import Control.Applicative
#endif
import System.Directory (getTemporaryDirectory)
import System.FilePath ((</>))
import Test.HUnit
import Distribution.Simple.Utils (withTempDirectory)
import Distribution.Verbosity (silent)
import Data.Binary
data Foo = Bar !Word32 !Word32 !Word32 deriving (Eq, Show)
instance Binary Foo where
get = Bar <$> get <*> get <*> get
put (Bar a b c) = put (a,b,c)
exampleData :: [Foo]
exampleData = make bytes
where
make (a:b:c:xs) = Bar a b c : make xs
make _ = []
bytes = take (256*1024) (cycle [minBound..maxBound])
readWriteTest :: Test
readWriteTest = TestCase $ do
tmpDir <- getTemporaryDirectory
withTempDirectory silent tmpDir "foo-dir" $ \dir -> do
let fn = dir </> "foo.bin"
encodeFile fn exampleData
content <- decodeFile fn
-- It'd be nice to use lsof to verify that 'fn' isn't still open.
exampleData @=? content
main :: IO ()
main = do
_ <- runTestTT readWriteTest
return ()
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