init

test/EvaluationSpec.hs

@@ -0,0 +1,8 @@
+module EvaluationSpec (spec) where
+import Test.Hspec
+
+spec :: Spec
+spec = do
+  describe "Evaluation" $ do
+    it "can evaluation expressions" $
+      True `shouldBe` True

test/ParserSpec.hs

@@ -0,0 +1,10 @@
+module ParserSpec (spec) where
+
+import Parser (Expr (Abstraction, Variable), parse)
+import Test.Hspec
+
+spec :: Spec
+spec = do
+  describe "Parser" $ do
+    it "can parse basic expressions" $
+      (parse "λx.x") `shouldBe` Right (Abstraction ("x", Variable "x"))

test/Spec.hs

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