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-rwxr-xr-xtests/id/gnu-zero-uids.sh29
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diff --git a/tests/id/gnu-zero-uids.sh b/tests/id/gnu-zero-uids.sh
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+#!/bin/sh
+# On GNU, 'id' must fail for processes with zero UIDs.
+
+# Copyright (C) 2011-2022 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 <https://www.gnu.org/licenses/>.
+
+. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
+print_ver_ id
+
+require_gnu_
+
+sush - true || skip_ "the 'sush' command does not work"
+
+# Run 'id' with zero UIDs. It should exit with a non-zero status.
+returns_ 1 sush - id > out || fail=1
+
+Exit $fail