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Add framingRender examples

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This commit is contained in:
Oleg Grenrus 2018-11-10 01:20:57 +02:00
parent ce83e4b404
commit 17f9237980
2 changed files with 16 additions and 0 deletions
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1
servant/servant.cabal
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@ -150,6 +150,7 @@ test-suite spec
, base-compat
, aeson
, bytestring
, mtl
, servant
, string-conversions
, text

15
servant/test/Servant/API/StreamSpec.hs
View file

@ -1,6 +1,8 @@
{-# LANGUAGE OverloadedStrings #-}
module Servant.API.StreamSpec where
import Control.Monad.Except
(runExcept)
import qualified Data.Aeson as Aeson
import qualified Data.ByteString as BS
import qualified Data.ByteString.Lazy as LBS
@ -32,6 +34,11 @@ spec = describe "Servant.API.Stream" $ do
describe "NewlineFraming" $ do
let tp = framingUnrender (Proxy :: Proxy NewlineFraming) (Right . LBS.toStrict)
let re = framingRender (Proxy :: Proxy NewlineFraming) id
it "framingRender examples" $ do
runRenderFrames re [] `shouldBe` Right ""
runRenderFrames re ["foo", "bar", "baz"] `shouldBe` Right "foo\nbar\nbaz"
it "framingUnrender examples" $ do
let expected n = map Right [fromString ("foo" ++ show (n :: Int)), "bar", "baz"]
@ -51,6 +58,11 @@ spec = describe "Servant.API.Stream" $ do
describe "NetstringFraming" $ do
let tp = framingUnrender (Proxy :: Proxy NetstringFraming) (Right . LBS.toStrict)
let re = framingRender (Proxy :: Proxy NetstringFraming) id
it "framingRender examples" $ do
runRenderFrames re [] `shouldBe` Right ""
runRenderFrames re ["foo", "bar", "baz"] `shouldBe` Right "3:foo,3:bar,3:baz,"
it "framingUnrender examples" $ do
let expected n = map Right [fromString ("foo" ++ show (n :: Int)), "bar", "baz"]
@ -74,6 +86,9 @@ roundtrip
roundtrip render unrender xs =
map Right xs === runUnrenderFrames (unrender . fmap LBS.toStrict . render) xs
runRenderFrames :: (SourceT Identity a -> SourceT Identity LBS.ByteString) -> [a] -> Either String LBS.ByteString
runRenderFrames f = fmap mconcat . runExcept . runSourceT . f . source
runUnrenderFrames :: (SourceT Identity b -> SourceT Identity a) -> [b] -> [Either String a]
runUnrenderFrames f = go . Effect . flip unSourceT return . f . source where
go :: StepT Identity a -> [Either String a]