test: add a test that ensures we don't regress on "argument" field handling in tmpfiles.d

Let's make sure what is now documented as fix for #17740 is not
accidentally changed anymore.

diff --git a/test/units/testsuite-22.10.sh b/test/units/testsuite-22.10.sh
new file mode 100755 (executable)
index 0000000..5ec297f
--- /dev/null
+++ b/test/units/testsuite-22.10.sh
@@ -0,0 +1,29 @@
+#!/usr/bin/env bash
+
+set -e
+set -x
+set -o pipefail
+
+systemd-tmpfiles --create - <<EOF
+f /tmp/xxx1 0644 - - - foo
+f /tmp/xxx2 0644 - - - foo bar
+f /tmp/xxx3 0644 - - - foo\x20bar
+f /tmp/xxx4 0644 - - - \x20foobar
+f /tmp/xxx5 0644 - - - foobar\x20
+f /tmp/xxx6 0644 - - -  foo bar
+f /tmp/xxx7 0644 - - -  foo bar \n
+f /tmp/xxx8 0644 - - - " foo bar "
+f /tmp/xxx9 0644 - - - ' foo bar '
+EOF
+
+echo -n "foo" | cmp /tmp/xxx1 -
+echo -n "foo bar" | cmp /tmp/xxx2 -
+echo -n "foo bar" | cmp /tmp/xxx3 -
+echo -n " foobar" | cmp /tmp/xxx4 -
+echo -n "foobar " | cmp /tmp/xxx5 -
+echo -n "foo bar" | cmp /tmp/xxx6 -
+echo "foo bar " | cmp /tmp/xxx7 -
+echo -n "\" foo bar \"" | cmp /tmp/xxx8 -
+echo -n "' foo bar '" | cmp /tmp/xxx9 -
+
+rm /tmp/xxx{1,2,3,4,5,6,7,8,9}