module Main where
import Control.Arrow
import Data.Aeson
import qualified Data.Aeson.Pointer as P
import Data.Text (Text)
import qualified Data.Text as T
import Data.Text.Encoding
import qualified Data.Vector as V
import Network.HTTP.Types.URI (urlDecode)
import Test.Framework (defaultMain, testGroup)
import Test.Framework.Providers.HUnit (testCase)
import Test.Framework.Providers.QuickCheck2 (testProperty)
import Test.HUnit hiding (Test)
-- For GHCs before 7.10:
import Control.Applicative
import Data.Foldable
import Data.Monoid
main :: IO ()
main = defaultMain
[ testGroup "unit"
[ testProperty "Storing a Pointer as JSON doesn't change its value" roundtrip
, testCase "Can be represented in a JSON string value" jsonString
, testCase "Can be represented in a URI fragment identifier" uriFragment
]
]
roundtrip :: P.Pointer -> Bool
roundtrip a = Just a == decode (encode a)
jsonString :: Assertion
jsonString = traverse_ resolvesTo
[ ("" , specExample)
, ("/foo" , Array $ V.fromList ["bar", "baz"])
, ("/foo/0", String "bar")
, ("/" , Number 0)
, ("/a~1b" , Number 1)
, ("/c%d" , Number 2)
, ("/e^f" , Number 3)
, ("/g|h" , Number 4)
, ("/i\\j" , Number 5)
, ("/k\"l" , Number 6)
, ("/ " , Number 7)
, ("/m~0n" , Number 8)
]
uriFragment :: Assertion
uriFragment = traverse_ resolvesTo . fmap (first decodeFragment) $
[ ("#" , specExample)
, ("#/foo" , Array $ V.fromList ["bar", "baz"])
, ("#/foo/0", String "bar")
, ("#/" , Number 0)
, ("#/a~1b" , Number 1)
, ("#/c%25d", Number 2)
, ("#/e%5Ef", Number 3)
, ("#/g%7Ch", Number 4)
, ("#/i%5Cj", Number 5)
, ("#/k%22l", Number 6)
, ("#/%20" , Number 7)
, ("#/m~0n" , Number 8)
]
where
decodeFragment :: Text -> Text
decodeFragment = T.drop 1 . decodeUtf8 . urlDecode True . encodeUtf8
resolvesTo :: (Text, Value) -> Assertion
resolvesTo (t, expected) =
case P.unescape t of
Left e -> assertFailure (show e <> " error for pointer: " <> show t)
Right p -> assertEqual
("Resolved value for pointer: " <> show t)
(Right expected)
(P.resolve p specExample)
specExample :: Value
specExample = object
[ "foo" .= (["bar", "baz"] :: [Text])
, "" .= (0 :: Int)
, "a/b" .= (1 :: Int)
, "c%d" .= (2 :: Int)
, "e^f" .= (3 :: Int)
, "g|h" .= (4 :: Int)
, "i\\j" .= (5 :: Int)
, "k\"l" .= (6 :: Int)
, " " .= (7 :: Int)
, "m~n" .= (8 :: Int)
]