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{-# LANGUAGE OverloadedStrings #-}
module WithApplicationSpec where
import Control.Exception
import Network.HTTP.Types
import Network.Wai
import System.Environment
import System.Process
import Test.Hspec
import Network.Wai.Handler.Warp.WithApplication
-- All these tests assume the "curl" process can be called directly.
spec :: Spec
spec = do
runIO $ do
unsetEnv "http_proxy"
unsetEnv "https_proxy"
describe "\"curl\" dependency" $
let msg =
"All \"WithApplication\" tests assume the \"curl\" process can be called directly."
underline = replicate (length msg) '^'
in it (msg ++ "\n " ++ underline) True
describe "withApplication" $ do
it "runs a wai Application while executing the given action" $ do
let mkApp = return $ \_request respond -> respond $ responseLBS ok200 [] "foo"
withApplication mkApp $ \port -> do
output <- readProcess "curl" ["-s", "localhost:" ++ show port] ""
output `shouldBe` "foo"
it "does not propagate exceptions from the server to the executing thread" $ do
let mkApp = return $ \_request _respond -> throwIO $ ErrorCall "foo"
withApplication mkApp $ \port -> do
output <- readProcess "curl" ["-s", "localhost:" ++ show port] ""
output `shouldContain` "Something went wron"
describe "testWithApplication" $ do
it "propagates exceptions from the server to the executing thread" $ do
let mkApp = return $ \_request _respond -> throwIO $ ErrorCall "foo"
testWithApplication
mkApp
( \port -> do
readProcess "curl" ["-s", "localhost:" ++ show port] ""
)
`shouldThrow` (errorCall "foo")
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