Add driver to each spec file, so that they can be run standalone in GHCi

Author: sol

test/FeatureSpec.hs

@@ -1,6 +1,6 @@
 {-# LANGUAGE ScopedTypeVariables #-}
 
-module FeatureSpec ( spec ) where
+module FeatureSpec ( main, spec ) where
 
 import qualified Hi.Cli              as Cli
 import           Hi.Directory        (inDirectory)
@@ -23,6 +23,9 @@ import           Test.Hspec
 
 import           Paths_hi            (version)
 
+main :: IO ()
+main = hspec spec
+
 spec :: Spec
 spec = do
     describe "with command line options" $ do

test/Hi/GitSpec.hs

@@ -1,9 +1,12 @@
-module Hi.GitSpec ( spec ) where
+module Hi.GitSpec ( main, spec ) where
 
 import           Hi.Git
 
 import           Test.Hspec
 
+main :: IO ()
+main = hspec spec
+
 spec :: Spec
 spec = do
     let fullUrl = "[email protected]:fujimura/hi.git"

test/HiSpec.hs

@@ -1,6 +1,6 @@
 {-# LANGUAGE OverloadedStrings #-}
 
-module HiSpec ( spec ) where
+module HiSpec ( main, spec ) where
 
 import           Hi                    (process)
 import           Hi.Types
@@ -9,6 +9,9 @@ import           Data.ByteString.Char8 (unpack)
 import           Data.Maybe            (fromJust, isJust)
 import           Test.Hspec
 
+main :: IO ()
+main = hspec spec
+
 options :: Option
 options = Option { initializeGitRepository = True
                   , packageName    = "testapp"