1 files changed, 74 insertions, 0 deletions
diff --git a/tests/misc/help-version-getopt.sh b/tests/misc/help-version-getopt.sh
new file mode 100755
index 0000000..2e01b41
--- /dev/null
+++ b/tests/misc/help-version-getopt.sh
@@ -0,0 +1,74 @@
+#!/bin/sh
+# Ensure --version and --help options are processed before
+# any other options by some programs.
+
+# Copyright (C) 2019-2022 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_ yes
+
+programs="cksum dd hostid hostname link logname nohup
+sleep tsort unlink uptime users whoami yes"
+
+# All these variations should show the help/version screen
+# regardless of their position on the command line arguments.
+for prog in $programs; do
+  # skip if the program is not built (e.g., hostname)
+  case " $built_programs " in
+  *" $prog "*) ;;
+  *) continue;;
+  esac
+
+  for opt in --help --version; do
+    rm -f exp out1 out2 out3 || framework_failure_
+
+    # Get the reference output
+    env $prog $opt >exp || fail=1
+
+    # Test: some other argument AFTER --help/--version.
+    env $prog $opt AFTER > out1 || fail=1
+    compare exp out1 || fail=1
+
+    # nohup is an exception: stops processing after first non-option parameter.
+    # E.g., "nohup df --help" should run "df --help", not "df --help".
+    if [ "$prog" = nohup ]; then
+      rm -f exp  || framework_failure_
+      df $opt > exp || framework_failure_
+      BEFORE=df
+    else
+      BEFORE=BEFORE
+    fi
+
+    # Test: some other argument BEFORE --help/--version.
+    env $prog $BEFORE $opt > out2 || fail=1
+    compare exp out2 || fail=1
+
+    # Test: some other arguments BEFORE and AFTER --help/--version.
+    env $prog $BEFORE $opt AFTER > out3 || fail=1
+    compare exp out3 || fail=1
+  done
+done
+
+# After end-of-options marker (--), the options should not be parsed.
+# Test with 'yes', and assume the common code will work the
+# same for the other programs.
+cat >exp <<\EOF || framework_failure_
+--help
+EOF
+env yes -- --help | head -n1 > out
+compare exp out || fail=1
+
+Exit $fail