Snap.Snaplet.Test

The Snap.Snaplet.Test module contains primitives and combinators for testing Snaplets.

Testing handlers

evalHandler :: MonadIO m => Maybe String -> RequestBuilder m () -> Handler b b a -> SnapletInit b b -> m (Either Text a)

Given a Snaplet Handler, a SnapletInit specifying the initial state, and a RequestBuilder defining a test request, runs the handler, returning the monadic value it produces.

Throws an exception if the Snap handler early-terminates with finishWith or mzero.

Note that the output of this function is slightly different from 'evalHandler defined in Snap.Test, because due to the fact running the initializer inside SnapletInit can throw an exception.

runHandler :: MonadIO m => Maybe String -> RequestBuilder m () -> Handler b b v -> SnapletInit b b -> m (Either Text Response)

Given a Snaplet Handler and a RequestBuilder defining a test request, runs the Handler, producing an HTTP Response.

Note that the output of this function is slightly different from runHandler defined in Snap.Test, because due to the fact running the initializer inside SnapletInit can throw an exception.

withTemporaryFile :: FilePath -> IO () -> IO ()

Remove the given file before running an IO computation. Obviously it can be used with Assertion.