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module System.Torrent.StorageSpec (spec) where
import Control.Exception
import Data.ByteString.Lazy as BL
import System.FilePath
import System.Directory
import System.IO.Unsafe
import Test.Hspec
import Data.Torrent.Layout
import Data.Torrent.Piece
import System.Torrent.Storage
layout :: FileLayout FileSize
layout =
[ (dir </> "_a", 20)
, (dir </> "_b", 50)
, (dir </> "_c", 100)
, (dir </> "_d", 5)
]
where
dir = unsafePerformIO $ getTemporaryDirectory
createLayout :: IO ()
createLayout =
bracket (open ReadWriteEx 0 layout) close (const (return ()))
spec :: Spec
spec = before createLayout $ do
describe "writePiece" $ do
it "should fail gracefully on write operation in RO mode" $ do
s <- open ReadOnly 0 layout
writePiece (Piece 0 "") s `shouldThrow` (== StorageIsRO)
close s
it "should fail if piece size do not match" $ do
withStorage ReadWrite 1 layout $ \ s ->
writePiece (Piece 0 "") s `shouldThrow` (== InvalidSize 0)
it "should fail on negative index" $ do
withStorage ReadWrite 0 layout $ \ s ->
writePiece (Piece (-1) "") s `shouldThrow` (== InvalidIndex (-1))
it "should fail on out of upper bound index" $ do
withStorage ReadWrite 100 layout $ \ s -> do
let bs = BL.replicate 100 0
writePiece (Piece 1 bs) s
writePiece (Piece 2 bs) s `shouldThrow` (== InvalidIndex 2)
describe "readPiece" $ do
it "should fail on negative index" $
withStorage ReadOnly 0 layout $ \ s ->
readPiece (-1) s `shouldThrow` (== InvalidIndex (-1))
it "should fail on out of upper bound index" $ do
withStorage ReadOnly 100 layout $ \ s -> do
_ <- readPiece 1 s
readPiece 2 s `shouldThrow` (== InvalidIndex 2)
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