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module System.Torrent.StorageSpec (spec) where
import Data.ByteString.Lazy as BL
import Data.Conduit as C
import Data.Conduit.List as C
import System.FilePath
import System.Directory
import System.IO.Unsafe
import Test.Hspec
import Data.Torrent
import Network.BitTorrent.Exchange.Bitfield as BF
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 = withStorage ReadWriteEx 1 layout (const (return ()))
psize :: PieceSize
psize = 16
pcount :: PieceCount
pcount = 11
spec :: Spec
spec = before createLayout $ do
describe "writePiece" $ do
it "should fail gracefully on write operation in RO mode" $ do
withStorage ReadOnly 1 layout $ \ s ->
writePiece (Piece 0 "a") s `shouldThrow` (== StorageIsRO)
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 1 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 0 bs) s
let bs' = BL.replicate 75 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 1 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)
describe "sourceStorage" $ do
it "should source all chunks" $ do
withStorage ReadOnly psize layout $ \ s -> do
n <- sourceStorage s $$ C.fold (\ n _ -> succ n) 0
n `shouldBe` pcount
-- this test should fail if 'sourceStorage' test fail
describe "sinkStorage" $ do
it "should write all chunks" $ do
let byteVal = 0
let bzeroPiece p = p { pieceData = BL.replicate (BL.length (pieceData p)) byteVal }
let isZeroPiece p = (== byteVal) `BL.all` pieceData p
withStorage ReadWrite psize layout $ \ s -> do
sourceStorage s $= C.map bzeroPiece $$ sinkStorage s
b <- sourceStorage s $$ C.fold (\ b p -> b && isZeroPiece p) True
b `shouldBe` True
describe "genPieceInfo" $ do
it "" $ do
withStorage ReadWrite psize layout $ \ s -> do
bf <- genPieceInfo s >>= getBitfield s
bf `shouldSatisfy` BF.full
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