servant/test/Servant/API/QQSpec.hs
2014-10-29 14:37:52 +01:00

93 lines
2.7 KiB
Haskell

{-# LANGUAGE DataKinds #-}
{-# LANGUAGE FlexibleInstances #-}
{-# LANGUAGE FunctionalDependencies #-}
{-# LANGUAGE MultiParamTypeClasses #-}
{-# LANGUAGE OverlappingInstances #-}
{-# LANGUAGE QuasiQuotes #-}
{-# LANGUAGE TypeFamilies #-}
{-# LANGUAGE TypeOperators #-}
{-# LANGUAGE UndecidableInstances #-}
module Servant.API.QQSpec where
import Test.Hspec
import Servant.API
{-import Servant.API.QQ-}
--------------------------------------------------------------------------
-- Types for testing
--------------------------------------------------------------------------
type SimpleGet = [sitemap|
GET hello ()
|]
type SimpleGet' = "hello" :> Get ()
type SimpleGet'' = "hello" :> Get Bool
type SimpleGet2 = [sitemap|
GET hello Bool
|]
type SimpleGet2' = "hello" :> Get Bool
type SimpleGet2'' = "hello" :> Get Int
type SimplePost = [sitemap|
POST hello ()
|]
type SimplePost' = "hello" :> Post ()
type SimplePost'' = "hello" :> Post Bool
type SimplePost2 = [sitemap|
POST hello Bool
|]
type SimplePost2' = "hello" :> Post Bool
type SimplePost2'' = "hello" :> Post ()
type SimpleReqBody = [sitemap|
POST hello () -> Bool
|]
type SimpleReqBody' = "hello" :> ReqBody () :> Post Bool
type SimpleReqBody'' = "hello" :> ReqBody Bool :> Post ()
--------------------------------------------------------------------------
-- Spec
--------------------------------------------------------------------------
spec :: Spec
spec = do
describe "'sitemap' QuasiQuoter" $ do
it "Handles simple GET types" $ do
(u::SimpleGet) ~= (u::SimpleGet' ) ~> True
(u::SimpleGet) ~= (u::SimpleGet'' ) ~> False
(u::SimpleGet2) ~= (u::SimpleGet2' ) ~> True
(u::SimpleGet2) ~= (u::SimpleGet2'') ~> False
it "Handles simple POST types" $ do
(u::SimplePost) ~= (u::SimplePost' ) ~> True
(u::SimplePost) ~= (u::SimplePost'' ) ~> False
(u::SimplePost2) ~= (u::SimplePost2' ) ~> True
(u::SimplePost2) ~= (u::SimplePost2'') ~> False
it "Handles simple request body types" $ do
(u::SimpleReqBody) ~= (u::SimpleReqBody' ) ~> True
(u::SimpleReqBody) ~= (u::SimpleReqBody'') ~> False
--------------------------------------------------------------------------
-- Utilities
--------------------------------------------------------------------------
data HTrue
data HFalse
-- Kiselyov's Type Equality predicate
class TypeEq x y b | x y -> b where { areEq :: x -> y -> Bool }
instance TypeEq x x HTrue where { areEq _ _ = True }
instance b ~ HFalse => TypeEq x y b where { areEq _ _ = False}
infix 4 ~=
(~=) :: TypeEq x y b => x -> y -> Bool
(~=) = areEq
u :: a
u = undefined
infix 3 ~>
(~>) = shouldBe