Add IO modules, previously from HSFM

test/HPath/IO/DeleteFileSpec.hs

@@ -0,0 +1,69 @@
+{-# LANGUAGE OverloadedStrings #-}
+
+module HPath.IO.DeleteFileSpec where
+
+
+import Test.Hspec
+import System.IO.Error
+  (
+    ioeGetErrorType
+  )
+import System.Posix.Files.ByteString
+  (
+    getSymbolicLinkStatus
+  )
+import GHC.IO.Exception
+  (
+    IOErrorType(..)
+  )
+import Utils
+import qualified Data.ByteString as BS
+import           Data.ByteString.UTF8 (toString)
+
+
+ba :: BS.ByteString -> BS.ByteString -> BS.ByteString
+ba = BS.append
+
+specDir :: BS.ByteString
+specDir = "test/HPath/IO/deleteFileSpec/"
+
+specDir' :: String
+specDir' = toString specDir
+
+
+spec :: Spec
+spec =
+  describe "HPath.IO.deleteFile" $ do
+
+    -- successes --
+    it "deleteFile, regular file, all fine" $ do
+      createRegularFile' (specDir `ba` "testFile")
+      deleteFile' (specDir `ba` "testFile")
+      getSymbolicLinkStatus (specDir `ba` "testFile")
+        `shouldThrow`
+        (\e -> ioeGetErrorType e == NoSuchThing)
+
+    it "deleteFile, symlink, all fine" $ do
+      recreateSymlink' (specDir `ba` "syml")
+                       (specDir `ba` "testFile")
+      deleteFile' (specDir `ba` "testFile")
+      getSymbolicLinkStatus (specDir `ba` "testFile")
+        `shouldThrow`
+        (\e -> ioeGetErrorType e == NoSuchThing)
+
+    -- posix failures --
+    it "deleteFile, wrong file type (directory)" $
+      deleteFile' (specDir `ba` "dir")
+        `shouldThrow`
+        (\e -> ioeGetErrorType e == InappropriateType)
+
+    it "deleteFile, file does not exist" $
+      deleteFile' (specDir `ba` "doesNotExist")
+        `shouldThrow`
+        (\e -> ioeGetErrorType e == NoSuchThing)
+
+    it "deleteFile, can't read directory" $
+      deleteFile' (specDir `ba` "noPerms/blah")
+        `shouldThrow`
+        (\e -> ioeGetErrorType e == PermissionDenied)
+