Test previous patch.

* tests/misc/groups-dash: New test.
* tests/misc/Makefile.am (TESTS): Add it.

Signed-off-by: Eric Blake <ebb9@byu.net>

2 files changed, 38 insertions, 0 deletions

diff --git a/tests/misc/Makefile.am b/tests/misc/Makefile.am
index 1f29e366f..85c82e4f8 100644
--- a/tests/misc/Makefile.am
+++ b/tests/misc/Makefile.am
@@ -70,6 +70,7 @@ TESTS = \
   fmt \
   fmt-long-line \
   fold \
+  groups-dash \
   groups-version \
   head-c \
   head-pos \
diff --git a/tests/misc/groups-dash b/tests/misc/groups-dash
new file mode 100755
index 000000000..f6dfe6887
--- /dev/null
+++ b/tests/misc/groups-dash
@@ -0,0 +1,37 @@
+#!/bin/sh
+# ensure groups handles -- sanely
+
+# Copyright (C) 2007 Free Software Foundation, Inc.
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+if test "$VERBOSE" = yes; then
+  set -x
+  groups --version
+fi
+
+. $srcdir/../lang-default
+. $srcdir/../test-lib.sh
+
+# Coreutils 6.9 and earlier failed to display information on first argument
+# if later argument was --.
+fail=0
+groups none -- > out 2>&1
+echo $? >> out
+groups -- none -- > exp 2>&1
+echo $? >> exp
+
+compare out exp || fail=1
+
+(exit $fail); exit $fail