config test

test/optparse-test/Main.hs

@@ -1,12 +1,15 @@
 module Main where
+
 import Test.Tasty
 import qualified SetTest
 import qualified OtherCommandTest
 import qualified ChangeLogTest
+import qualified ConfigTest
 
 main :: IO ()
 main = defaultMain $ testGroup "ghcup"
   [ SetTest.setTests
   , OtherCommandTest.otherCommandTests
   , ChangeLogTest.changeLogTests
+  , ConfigTest.configTests
   ]