pf tests: basic debug level test

Set & retrieve the debug level.

Sponsored by:	Rubicon Communications, LLC ("Netgate")

tests/sys/netpfil/pf/Makefile

@@ -7,6 +7,7 @@ TESTS_SUBDIRS+=	ioctl
 
 ATF_TESTS_SH+=	altq \
 		anchor \
+		debug \
 		divert-to \
 		dup \
 		ether \

tests/sys/netpfil/pf/debug.sh

@@ -0,0 +1,56 @@
+#
+# SPDX-License-Identifier: BSD-2-Clause
+#
+# Copyright (c) 2024 Rubicon Communications, LLC (Netgate)
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+. $(atf_get_srcdir)/utils.subr
+
+atf_test_case "basic" "cleanup"
+basic_head()
+{
+	atf_set descr 'Test setting and retrieving debug level'
+	atf_set require.user root
+}
+
+basic_body()
+{
+	pft_init
+
+	vnet_mkjail debug
+	atf_check -s exit:0 -e ignore \
+	    jexec debug pfctl -x loud
+
+	atf_check -s exit:0 -o match:'Debug: Loud' \
+	    jexec debug pfctl -si
+}
+
+basic_cleanup()
+{
+	pft_cleanup
+}
+
+atf_init_test_cases()
+{
+	atf_add_test_case "basic"
+}