linux-kernel - [PATCH net-next 12/13] selftests: mptcp: sockopt: format subtests results in TAP

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Message-Id: <20230717-upstream-net-next-20230712-selftests-mptcp-subtests-v1-12-695127e0ad83@tessares.net>
Date:   Mon, 17 Jul 2023 15:21:32 +0200
From:   Matthieu Baerts <matthieu.baerts@...sares.net>
To:     mptcp@...ts.linux.dev, Mat Martineau <martineau@...nel.org>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>, Shuah Khan <shuah@...nel.org>
Cc:     netdev@...r.kernel.org, linux-kselftest@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Matthieu Baerts <matthieu.baerts@...sares.net>
Subject: [PATCH net-next 12/13] selftests: mptcp: sockopt: format subtests
 results in TAP

The current selftests infrastructure formats the results in TAP 13. This
version doesn't support subtests and only the end result of each
selftest is taken into account. It means that a single issue in a
subtest of a selftest containing multiple subtests forces the whole
selftest to be marked as failed. It also means that subtests results are
not tracked by CIs executing selftests.

MPTCP selftests run hundreds of various subtests. It is then important
to track each of them and not one result per selftest.

It is particularly interesting to do that when validating stable kernels
with the last version of the test suite: tests might fail because a
feature is not supported but the test didn't skip that part. In this
case, if subtests are not tracked, the whole selftest will be marked as
failed making the other subtests useless because their results are
ignored.

This patch formats subtests results in TAP in mptcp_sockopt.sh selftest.

Link: https://github.com/multipath-tcp/mptcp_net-next/issues/368
Acked-by: Paolo Abeni <pabeni@...hat.com>
Signed-off-by: Matthieu Baerts <matthieu.baerts@...sares.net>
---
 tools/testing/selftests/net/mptcp/mptcp_sockopt.sh | 20 ++++++++++++++++++--
 1 file changed, 18 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/net/mptcp/mptcp_sockopt.sh b/tools/testing/selftests/net/mptcp/mptcp_sockopt.sh
index dc8d473fc82c..8c8694f21e7d 100755
--- a/tools/testing/selftests/net/mptcp/mptcp_sockopt.sh
+++ b/tools/testing/selftests/net/mptcp/mptcp_sockopt.sh
@@ -183,11 +183,13 @@ do_transfer()
 
 	local mptcp_connect="./mptcp_connect -r 20"
 
-	local local_addr
+	local local_addr ip
 	if is_v6 "${connect_addr}"; then
 		local_addr="::"
+		ip=ipv6
 	else
 		local_addr="0.0.0.0"
+		ip=ipv4
 	fi
 
 	cmsg="TIMESTAMPNS"
@@ -223,6 +225,8 @@ do_transfer()
 		echo -e "\nnetns ${connector_ns} socket stat for ${port}:" 1>&2
 		ip netns exec ${connector_ns} ss -Menita 1>&2 -o "dport = :$port"
 
+		mptcp_lib_result_fail "transfer ${ip}"
+
 		ret=1
 		return 1
 	fi
@@ -236,9 +240,11 @@ do_transfer()
 	fi
 
 	check_transfer $cin $sout "file received by server"
-
 	rets=$?
 
+	mptcp_lib_result_code "${retc}" "mark ${ip}"
+	mptcp_lib_result_code "${rets}" "transfer ${ip}"
+
 	if [ $retc -eq 0 ] && [ $rets -eq 0 ];then
 		return 0
 	fi
@@ -264,6 +270,7 @@ do_mptcp_sockopt_tests()
 
 	if ! mptcp_lib_kallsyms_has "mptcp_diag_fill_info$"; then
 		echo "INFO: MPTCP sockopt not supported: SKIP"
+		mptcp_lib_result_skip "sockopt"
 		return
 	fi
 
@@ -272,18 +279,22 @@ do_mptcp_sockopt_tests()
 
 	if [ $lret -ne 0 ]; then
 		echo "FAIL: SOL_MPTCP getsockopt" 1>&2
+		mptcp_lib_result_fail "sockopt v4"
 		ret=$lret
 		return
 	fi
+	mptcp_lib_result_pass "sockopt v4"
 
 	ip netns exec "$ns_sbox" ./mptcp_sockopt -6
 	lret=$?
 
 	if [ $lret -ne 0 ]; then
 		echo "FAIL: SOL_MPTCP getsockopt (ipv6)" 1>&2
+		mptcp_lib_result_fail "sockopt v6"
 		ret=$lret
 		return
 	fi
+	mptcp_lib_result_pass "sockopt v6"
 }
 
 run_tests()
@@ -310,10 +321,12 @@ do_tcpinq_test()
 	if [ $lret -ne 0 ];then
 		ret=$lret
 		echo "FAIL: mptcp_inq $@" 1>&2
+		mptcp_lib_result_fail "TCP_INQ: $*"
 		return $lret
 	fi
 
 	echo "PASS: TCP_INQ cmsg/ioctl $@"
+	mptcp_lib_result_pass "TCP_INQ: $*"
 	return $lret
 }
 
@@ -323,6 +336,7 @@ do_tcpinq_tests()
 
 	if ! mptcp_lib_kallsyms_has "mptcp_ioctl$"; then
 		echo "INFO: TCP_INQ not supported: SKIP"
+		mptcp_lib_result_skip "TCP_INQ"
 		return
 	fi
 
@@ -367,4 +381,6 @@ if [ $ret -eq 0 ];then
 fi
 
 do_tcpinq_tests
+
+mptcp_lib_result_print_all_tap
 exit $ret

-- 
2.40.1