1 files changed, 42 insertions, 0 deletions
diff --git a/tests/id/uid.sh b/tests/id/uid.sh
new file mode 100755
index 0000000..e453612
--- /dev/null
+++ b/tests/id/uid.sh
@@ -0,0 +1,42 @@
+#!/bin/sh
+# Ensure that "id" works with numeric user ids
+# Copyright (C) 2013-2020 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/>.
+
+. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
+print_ver_ id
+
+uid=$(id -u) || fail=1
+user=$(id -nu) || fail=1
+
+# Ensure the empty user spec is discarded
+returns_ 1 id '' || fail=1
+
+# Ensure we don't exit early, and process all users
+id $user > user_out || fail=1
+returns_ 1 id '' $user >multi_user_out || fail=1
+compare user_out multi_user_out || fail=1
+
+for mode in '' '-G' '-g'; do
+  id $mode $user > user_out || fail=1 # lookup name for comparison
+
+  id $mode $uid > uid_out || fail=1   # lookup name "$uid" before id "$uid"
+  compare user_out uid_out || fail=1
+
+  id $mode +$uid > uid_out || fail=1  # lookup only id "$uid"
+  compare user_out uid_out || fail=1
+done
+
+Exit $fail