1 files changed, 38 insertions, 0 deletions
diff --git a/tests/ls/time-style-diag.sh b/tests/ls/time-style-diag.sh
new file mode 100755
index 0000000..dd58d2f
--- /dev/null
+++ b/tests/ls/time-style-diag.sh
@@ -0,0 +1,38 @@
+#!/bin/sh
+# Ensure that an invalid --time-style=ARG is diagnosed the way we want.
+
+# Copyright (C) 2011-2018 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_ ls
+
+returns_ 2 ls -l --time-style=XX > out 2> err || fail=1
+
+cat <<\EOF > exp || framework_failure_
+ls: invalid argument 'XX' for 'time style'
+Valid arguments are:
+  - [posix-]full-iso
+  - [posix-]long-iso
+  - [posix-]iso
+  - [posix-]locale
+  - +FORMAT (e.g., +%H:%M) for a 'date'-style format
+Try 'ls --help' for more information.
+EOF
+
+compare exp err || fail=1
+compare /dev/null out || fail=1
+
+Exit $fail