81 lines
3.0 KiB
Haskell
81 lines
3.0 KiB
Haskell
module HTTPure.SpecHelpers where
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import Prelude (Unit, bind, discard, pure, unit, ($), (<>), (>>=))
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import Control.Monad.Aff as Aff
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import Control.Monad.Eff as Eff
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import Control.Monad.Eff.Exception as Exception
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import Control.Monad.ST as ST
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import Node.Encoding as Encoding
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import Node.HTTP as HTTP
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import Node.HTTP.Client as HTTPClient
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import Node.Stream as Stream
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import Node.StreamBuffer as StreamBuffer
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import Test.Spec as Spec
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import Test.Spec.Runner as Runner
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import Unsafe.Coerce as Coerce
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-- | A type alias encapsulating all effect types used in making a mock request.
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type MockRequestEffects e s =
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( st :: ST.ST s
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, exception :: Exception.EXCEPTION
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, http :: HTTP.HTTP | e
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)
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-- | A type alias encapsulating all effect types used in tests.
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type TestEffects s =
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Runner.RunnerEffects (
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MockRequestEffects ( sb :: StreamBuffer.STREAM_BUFFER ) s
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)
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-- | The type for integration tests.
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type Test = forall s. Spec.Spec (TestEffects s) Unit
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-- | The type for the entire test suite.
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type TestSuite = forall s. Eff.Eff (TestEffects s) Unit
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-- | Given an HTTPClient.Request, close the request stream so the request can be
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-- | fired.
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endRequest :: forall e.
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HTTPClient.Request -> Eff.Eff (http :: HTTP.HTTP | e) Unit
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endRequest request = Stream.end (HTTPClient.requestAsStream request) $ pure unit
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-- | Given a URL, a failure handler, and a success handler, create an HTTP
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-- | client request.
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getResponse :: forall e.
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String ->
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(Exception.Error -> Eff.Eff (http :: HTTP.HTTP | e) Unit) ->
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(HTTPClient.Response -> Eff.Eff (http :: HTTP.HTTP | e) Unit) ->
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Eff.Eff (http :: HTTP.HTTP | e) Unit
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getResponse url _ success = HTTPClient.requestFromURI url success >>= endRequest
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-- | Given an ST String buffer and a new string, concatenate that new string
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-- | onto the ST buffer.
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concat :: forall e s.
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ST.STRef s String -> String -> Eff.Eff (st :: ST.ST s | e) Unit
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concat buf new = ST.modifySTRef buf (\old -> old <> new) >>= (\_ -> pure unit)
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-- | Convert a request to an Aff containing the string with the response body.
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toString :: forall e s.
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HTTPClient.Response -> Aff.Aff (MockRequestEffects e s) String
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toString response = Aff.makeAff \_ success -> do
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let stream = HTTPClient.responseAsStream response
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buf <- ST.newSTRef ""
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Stream.onDataString stream Encoding.UTF8 $ concat buf
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Stream.onEnd stream $ ST.readSTRef buf >>= success
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-- | Run an HTTP GET with the given url and return an Aff that contains the
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-- | string with the response body.
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get :: forall e s. String -> Aff.Aff (MockRequestEffects e s) String
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get url = Aff.makeAff (getResponse url) >>= toString
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-- | Mock an HTTP Request object
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mockRequest :: String -> String -> HTTP.Request
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mockRequest method url = Coerce.unsafeCoerce { method: method, url: url }
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-- | Mock an HTTP Request object
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mockResponse :: forall e1.
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Stream.Writable () (sb :: StreamBuffer.STREAM_BUFFER | e1) ->
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HTTP.Response
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mockResponse = Coerce.unsafeCoerce
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