stdout := bytes.NewBuffer(nil)
stderr := bytes.NewBuffer(nil)
exited := testCmd.RunCommand("prog", []string{"nosuchcommand", "hi"}, bytes.NewReader(nil), stdout, stderr)
stdout := bytes.NewBuffer(nil)
stderr := bytes.NewBuffer(nil)
exited := testCmd.RunCommand("prog", []string{"nosuchcommand", "hi"}, bytes.NewReader(nil), stdout, stderr)