import Test.Cabal.Prelude main = setupAndCabalTest $ do skipUnlessGhcVersion ">= 8.1" withPackageDb $ do setup_install [] _ <- runM "touch" ["repo/indef-0.1.0.0/Foo.hs"] Nothing setup "build" [] runExe' "exe" [] >>= assertOutputContains "fromList [(0,2),(2,4)]"