Add hspec

dialog-flow.cabal

@@ -75,3 +75,17 @@ library
   default-language:    Haskell2010
   ghc-options:         -Wall
 
+test-suite dialog-flow-test
+  type: exitcode-stdio-1.0
+  main-is: Spec.hs
+  other-modules:
+      DialogFlow.MessageSpec
+  hs-source-dirs:
+      test
+  ghc-options: -threaded -rtsopts -with-rtsopts=-N
+  build-depends:
+      base ^>=4.12.0.0
+    , dialog-flow
+    , hspec
+    , hspec-discover
+  default-language: Haskell2010

shell.nix

@@ -4,13 +4,16 @@ let
 
   inherit (nixpkgs) pkgs;
 
-  f = { mkDerivation, aeson, base, stdenv, text }:
+  f = { mkDerivation, aeson, base, hspec, hspec-discover, stdenv
+      , text
+      }:
       mkDerivation {
         pname = "dialog-flow";
         version = "0.1.0.0";
         src = ./.;
         libraryHaskellDepends = [ aeson base text ];
-        doHaddock = false;
+        testHaskellDepends = [ base hspec hspec-discover ];
+        testToolDepends = [ hspec-discover ];
         homepage = "https://github.com/mauriciofierrom/dialog-flow";
         description = "A Dialog Flow library for Haskell";
         license = stdenv.lib.licenses.bsd3;

src/DialogFlow/Message.hs

@@ -8,6 +8,7 @@ module DialogFlow.Message
   , Text(..)
   , SimpleResponses(..)
   , SimpleResponse(..)
+  , SpeechText(..)
   ) where
 
 import Data.Aeson ( FromJSON

test/DialogFlow/MessageSpec.hs

@@ -0,0 +1,10 @@
+module DialogFlow.MessageSpec where
+
+import Test.Hspec
+
+spec :: Spec
+spec = do
+  describe "Test" $ do
+    it "should be true" $
+      1 `shouldBe` 1
+

test/Spec.hs

@@ -0,0 +1 @@
+{-# OPTIONS_GHC -F -pgmF hspec-discover #-}