hackport-0.5.5: cabal/cabal-testsuite/PackageTests/NewBuild/CmdRun/ExitCodePropagation/cabal.test.hs

import Test.Cabal.Prelude
import Control.Monad ( (>=>) )
import System.Exit (ExitCode(ExitFailure))
main = cabalTest $
    fails (cabal' "new-run" ["foo"]) >>= assertExitCode (ExitFailure 42)