yesod/yesod-core/test/Test/InternalRequest.hs
2011-09-22 22:23:41 +08:00

92 lines
3.2 KiB
Haskell

{-# LANGUAGE OverloadedStrings #-}
module Test.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 = randomString 20 (mkStdGen 0) == "VH9SkhtptqPs6GqtofVg"
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 = reqNonce r == Nothing where
r = parseWaiRequest' defaultRequest [] Nothing g
ignoreDisabledNonce = reqNonce r == Nothing where
r = parseWaiRequest' defaultRequest [("_NONCE", "old")] Nothing g
useOldNonce = reqNonce r == Just "old" where
r = parseWaiRequest' defaultRequest [("_NONCE", "old")] (Just undefined) g
generateNonce = reqNonce r /= Nothing where
r = parseWaiRequest' defaultRequest [("_NONCE", "old")] (Just undefined) 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 = reqLangs r == ["accept1", "accept2"] where
r = parseWaiRequest' defaultRequest
{ requestHeaders = [("Accept-Language", "accept1, accept2")] } [] Nothing g
respectSessionLang = reqLangs r == ["session"] where
r = parseWaiRequest' defaultRequest [("_LANG", "session")] Nothing g
respectCookieLang = reqLangs r == ["cookie"] where
r = parseWaiRequest' defaultRequest
{ requestHeaders = [("Cookie", "_LANG=cookie")]
} [] Nothing g
respectQueryLang = reqLangs r == ["query"] where
r = parseWaiRequest' defaultRequest { queryString = [("_LANG", Just "query")] } [] Nothing g
prioritizeLangs = reqLangs r == ["query", "cookie", "session", "accept1", "accept2"] where
r = parseWaiRequest' defaultRequest
{ requestHeaders = [ ("Accept-Language", "accept1, accept2")
, ("Cookie", "_LANG=cookie")
]
, queryString = [("_LANG", Just "query")]
} [("_LANG", "session")] Nothing g
internalRequestTest :: [Spec]
internalRequestTest = descriptions [ randomStringSpecs
, nonceSpecs
, langSpecs
]
main = hspec internalRequestTest