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Diffstat (limited to 'testsuite/tests/lib/System/system001.hs')
| -rw-r--r-- | testsuite/tests/lib/System/system001.hs | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/testsuite/tests/lib/System/system001.hs b/testsuite/tests/lib/System/system001.hs new file mode 100644 index 0000000000..4237d526af --- /dev/null +++ b/testsuite/tests/lib/System/system001.hs @@ -0,0 +1,14 @@ +-- Not run on mingw, because of /dev/null use + +import System.Cmd (system) +import System.Exit (ExitCode(..), exitWith) + +main = + system "cat dog 1>/dev/null 2>&1" >>= \ ec -> + case ec of + ExitSuccess -> putStr "What?!?\n" >> ioError (userError "dog succeeded") + ExitFailure _ -> + system "cat system001.hs 2>/dev/null" >>= \ ec -> + case ec of + ExitSuccess -> exitWith ExitSuccess + ExitFailure _ -> putStr "What?!?\n" >> ioError (userError "cat failed") |