yesod/yesod-core/test/YesodCoreTest/InternalRequest.hs
2012-02-10 19:22:31 +01:00

101 lines
3.4 KiB
Haskell

{-# LANGUAGE OverloadedStrings #-}
module YesodCoreTest.InternalRequest (internalRequestTest) where
import Data.List (nub)
import System.Random (StdGen, mkStdGen)
import Network.Wai as W
import Network.Wai.Test
import Yesod.Internal.TestApi (randomString, parseWaiRequest')
import Yesod.Request (Request (..))
import Test.Hspec
randomStringSpecs :: [Spec]
randomStringSpecs = describe "Yesod.Internal.Request.randomString"
[ it "looks reasonably random" looksRandom
, it "does not repeat itself" $ noRepeat 10 100
]
-- NOTE: this testcase may break on other systems/architectures if
-- mkStdGen is not identical everywhere (is it?).
looksRandom :: Bool
looksRandom = randomString 20 (mkStdGen 0) == "VH9SkhtptqPs6GqtofVg"
noRepeat :: Int -> Int -> Bool
noRepeat len n = length (nub $ map (randomString len . mkStdGen) [1..n]) == n
-- For convenience instead of "(undefined :: StdGen)".
g :: StdGen
g = undefined
nonceSpecs :: [Spec]
nonceSpecs = describe "Yesod.Internal.Request.parseWaiRequest (reqNonce)"
[ it "is Nothing if sessions are disabled" noDisabledNonce
, it "ignores pre-existing nonce if sessions are disabled" ignoreDisabledNonce
, it "uses preexisting nonce in session" useOldNonce
, it "generates a new nonce for sessions without nonce" generateNonce
]
noDisabledNonce :: Bool
noDisabledNonce = reqNonce r == Nothing where
r = parseWaiRequest' defaultRequest [] False g
ignoreDisabledNonce :: Bool
ignoreDisabledNonce = reqNonce r == Nothing where
r = parseWaiRequest' defaultRequest [("_NONCE", "old")] False g
useOldNonce :: Bool
useOldNonce = reqNonce r == Just "old" where
r = parseWaiRequest' defaultRequest [("_NONCE", "old")] True g
generateNonce :: Bool
generateNonce = reqNonce r /= Nothing where
r = parseWaiRequest' defaultRequest [("_NONCE", "old")] True g
langSpecs :: [Spec]
langSpecs = describe "Yesod.Internal.Request.parseWaiRequest (reqLangs)"
[ it "respects Accept-Language" respectAcceptLangs
, it "respects sessions" respectSessionLang
, it "respects cookies" respectCookieLang
, it "respects queries" respectQueryLang
, it "prioritizes correctly" prioritizeLangs
]
respectAcceptLangs :: Bool
respectAcceptLangs = reqLangs r == ["en-US", "es", "en"] where
r = parseWaiRequest' defaultRequest
{ requestHeaders = [("Accept-Language", "en-US, es")] } [] False g
respectSessionLang :: Bool
respectSessionLang = reqLangs r == ["en"] where
r = parseWaiRequest' defaultRequest [("_LANG", "en")] False g
respectCookieLang :: Bool
respectCookieLang = reqLangs r == ["en"] where
r = parseWaiRequest' defaultRequest
{ requestHeaders = [("Cookie", "_LANG=en")]
} [] False g
respectQueryLang :: Bool
respectQueryLang = reqLangs r == ["en-US", "en"] where
r = parseWaiRequest' defaultRequest { queryString = [("_LANG", Just "en-US")] } [] False g
prioritizeLangs :: Bool
prioritizeLangs = reqLangs r == ["en-QUERY", "en-COOKIE", "en-SESSION", "en", "es"] where
r = parseWaiRequest' defaultRequest
{ requestHeaders = [ ("Accept-Language", "en, es")
, ("Cookie", "_LANG=en-COOKIE")
]
, queryString = [("_LANG", Just "en-QUERY")]
} [("_LANG", "en-SESSION")] False g
internalRequestTest :: [Spec]
internalRequestTest = descriptions [ randomStringSpecs
, nonceSpecs
, langSpecs
]