Separating dht-client library from bittorrent package.

1 files changed, 91 insertions, 0 deletions

diff --git a/bittorrent/tests/System/Torrent/StorageSpec.hs b/bittorrent/tests/System/Torrent/StorageSpec.hs
new file mode 100644
index 00000000..b5e49078
--- /dev/null
+++ b/bittorrent/tests/System/Torrent/StorageSpec.hs
@@ -0,0 +1,91 @@
+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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