import Test.Cabal.Prelude main = cabalTest $ do skipUnlessGhcVersion ">= 8.1" skipIfWindows -- TODO: https://github.com/haskell/cabal/issues/6271 withProjectFile "cabal.external.project" $ do cabal "v2-build" ["exe"] withPlan $ do r <- runPlanExe' "exe" "exe" [] assertOutputContains "fromList [(0,2),(2,4)]" r