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{-# LANGUAGE CPP #-}
module Tests.IO
( testTree -- :: TestTree
) where
import System.FilePath
import System.Directory (removeFile)
import Control.Exception (bracket)
import Test.Tasty
import Test.Tasty.HUnit
import Codec.Serialise
--------------------------------------------------------------------------------
-- Tests and properties
test_encodeAndDecodeFile :: Assertion
test_encodeAndDecodeFile =
let path = ("tests" </> "io_test1.cbor")
in withDeleteFile path $ do
let val = Just True
writeFileSerialise path val
val' <- readFileDeserialise path :: IO (Maybe Bool)
val @=? val'
--------------------------------------------------------------------------------
-- TestTree API
testTree :: TestTree
testTree = testGroup "IO tests"
[ testCase "file encode/decode roundtrip" test_encodeAndDecodeFile
]
--------------------------------------------------------------------------------
-- Utilities
-- | Run an action, and be sure to delete the specified @'FilePath'@ when
-- finished.
withDeleteFile :: FilePath -> IO a -> IO a
withDeleteFile f k = bracket (return ()) (const $ removeFile f) (const k)
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