Add test

streamly-filesystem.cabal

@@ -33,6 +33,28 @@ library
   default-language:    Haskell2010
   GHC-Options:         -Wall -O2 -fspec-constr-recursive=16 -fmax-worker-args=16
 
+test-suite sf-test
+  if os(windows) -- not supported yet
+    build-depends: unbuildable<0
+    buildable: False
+  type:                exitcode-stdio-1.0
+  main-is:             Main.hs
+  hs-source-dirs:      test
+  build-depends:         base                >= 4.12 && < 5
+                       , bytestring
+                       , hpath-directory     >= 0.13
+                       , hspec
+                       , hspec-discover
+                       , safe-exceptions     >= 0.1
+                       , streamly            >= 0.7
+                       , streamly-bytestring >= 0.1.0.1
+                       , streamly-filesystem
+                       , temporary
+                       , unix                >= 2.7
+                       , word8               >= 0.1.3
+  default-language:    Haskell2010
+  GHC-Options:         -Wall -threaded -rtsopts -with-rtsopts=-N
+
 source-repository head
   type:     git
   location: https://github.com/hasufell/streamly-filesystem

test/Main.hs

@@ -0,0 +1,39 @@
+{-# LANGUAGE FlexibleContexts  #-}
+{-# LANGUAGE OverloadedStrings #-}
+
+module Main where
+
+import Data.ByteString (ByteString)
+import Data.Word (Word8)
+import GHC.IO.Handle (Handle)
+import Streamly
+import Streamly.FileSystem.Handle (readChunks)
+import Streamly.Memory.Array (Array)
+import System.IO (openFile, IOMode(ReadMode))
+import System.IO.Temp (withSystemTempFile)
+import Test.Hspec
+import Test.Hspec.QuickCheck
+
+import qualified Data.ByteString as BS
+import qualified Data.ByteString.Lazy as BSL
+import Streamly.External.FileSystem.Handle.Posix
+import qualified Streamly.Prelude as S
+
+checkCopyLBS :: FilePath -> Handle -> IO ()
+checkCopyLBS filename handle' = do
+  let content = "Some file content"
+  print $ "Checking " <> filename
+  handle <- openFile filename ReadMode
+  copyLBS content handle
+  bsContent <- BS.hGetContents handle'
+  bsContent `shouldBe` content
+
+
+main :: IO ()
+main =
+  hspec $ do
+    describe "Streamly.External.FileSystem.Handle.Posix" $ do
+      it "copyLBS" $
+        withSystemTempFile "x" checkCopyLBS
+
+