54 lines
1.9 KiB
Haskell
54 lines
1.9 KiB
Haskell
{-# LANGUAGE DataKinds #-}
|
|
{-# OPTIONS_GHC -fdefer-type-errors #-}
|
|
module Servant.Server.Internal.ConfigSpec (spec) where
|
|
|
|
import Data.Proxy (Proxy (..))
|
|
import Test.Hspec (Spec, describe, it, shouldBe, pending, context)
|
|
import Test.ShouldNotTypecheck (shouldNotTypecheck)
|
|
|
|
import Servant.API
|
|
import Servant.Server.Internal.Config
|
|
|
|
spec :: Spec
|
|
spec = do
|
|
getConfigEntrySpec
|
|
|
|
getConfigEntrySpec :: Spec
|
|
getConfigEntrySpec = describe "getConfigEntry" $ do
|
|
|
|
let cfg1 = 0 .: EmptyConfig :: Config '[ConfigEntry "a" Int]
|
|
cfg2 = 1 .: cfg1 :: Config '[ConfigEntry "a" Int, ConfigEntry "a" Int]
|
|
|
|
it "gets the config if a matching one exists" $ do
|
|
|
|
getConfigEntry (Proxy :: Proxy "a") cfg1 `shouldBe` 0
|
|
|
|
it "gets the first matching config" $ do
|
|
|
|
getConfigEntry (Proxy :: Proxy "a") cfg2 `shouldBe` 1
|
|
|
|
it "allows to distinguish between different config entries with the same type by tag" $ do
|
|
let cfg = 'a' .: 'b' .: EmptyConfig :: Config '[ConfigEntry 1 Char, ConfigEntry 2 Char]
|
|
getConfigEntry (Proxy :: Proxy 1) cfg `shouldBe` 'a'
|
|
|
|
context "Show instance" $ do
|
|
let cfg = 1 .: 2 .: EmptyConfig
|
|
it "has a Show instance" $ do
|
|
show cfg `shouldBe` "1 .: 2 .: EmptyConfig"
|
|
|
|
it "bracketing works" $ do
|
|
show (Just cfg) `shouldBe` "Just (1 .: 2 .: EmptyConfig)"
|
|
|
|
it "bracketing works with operators" $ do
|
|
let cfg = (1 .: 'a' .: EmptyConfig) :<|> ('b' .: True .: EmptyConfig)
|
|
show cfg `shouldBe` "(1 .: 'a' .: EmptyConfig) :<|> ('b' .: True .: EmptyConfig)"
|
|
|
|
it "does not typecheck if key does not exist" $ do
|
|
|
|
let x = getConfigEntry (Proxy :: Proxy "b") cfg1 :: Int
|
|
shouldNotTypecheck x
|
|
|
|
it "does not typecheck if key maps to a different type" $ do
|
|
|
|
let x = getConfigEntry (Proxy :: Proxy "a") cfg1 :: String
|
|
shouldNotTypecheck x
|