[PATCH net-next 04/13] selftests: mptcp: userspace_pm: uniform results printing

[Matthieu Baerts <matthieu.baerts@tessares.net>]

There are a few reasons to do that:

- When the tabs are not printed as 8 spaces, some results were not
  properly aligned

- Some lines printing the test name were very long due to the use of a
  lot of spaces/tabs at the end and stdbuf at the beginning.

- To reduce duplicated code, e.g. to print what has failed and set the
  status

But by centralising how the test results are printed, this also prepares
future commits to avoid more duplicated code and ease the tracking of
the different subtests.

Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
---
 tools/testing/selftests/net/mptcp/userspace_pm.sh | 141 ++++++++++++----------
 1 file changed, 79 insertions(+), 62 deletions(-)

diff --git a/tools/testing/selftests/net/mptcp/userspace_pm.sh b/tools/testing/selftests/net/mptcp/userspace_pm.sh
index 63d348693e98..6b733b97d358 100755
--- a/tools/testing/selftests/net/mptcp/userspace_pm.sh
+++ b/tools/testing/selftests/net/mptcp/userspace_pm.sh
@@ -65,6 +65,38 @@ print_title()
 	stdbuf -o0 -e0 printf "INFO: %s\n" "${1}"
 }
 
+# $1: test name
+print_test()
+{
+	stdbuf -o0 -e0 printf "%-63s" "${1}"
+}
+
+print_results()
+{
+	stdbuf -o0 -e0 printf "[%s]\n" "${1}"
+}
+
+test_pass()
+{
+	print_results " OK "
+}
+
+test_skip()
+{
+	print_results "SKIP"
+}
+
+# $1: msg
+test_fail()
+{
+	print_results "FAIL"
+	ret=1
+
+	if [ -n "${1}" ]; then
+		stdbuf -o0 -e0 printf "\t%s\n" "${1}"
+	fi
+}
+
 kill_wait()
 {
 	[ $1 -eq 0 ] && return 0
@@ -127,7 +159,8 @@ ip -net "$ns2" addr add dead:beef:2::2/64 dev ns2eth1 nodad
 ip -net "$ns2" link set ns2eth1 up
 
 print_title "Init"
-stdbuf -o0 -e0 printf "Created network namespaces ns1, ns2         \t\t\t[OK]\n"
+print_test "Created network namespaces ns1, ns2"
+test_pass
 
 make_file()
 {
@@ -212,16 +245,13 @@ make_connection()
 	server_serverside=$(grep "type:1," "$server_evts" |
 			    sed --unbuffered -n 's/.*\(server_side:\)\([[:digit:]]*\).*$/\2/p;q')
 
-	stdbuf -o0 -e0 printf "Established IP%s MPTCP Connection ns2 => ns1    \t\t" $is_v6
+	print_test "Established IP${is_v6} MPTCP Connection ns2 => ns1"
 	if [ "$client_token" != "" ] && [ "$server_token" != "" ] && [ "$client_serverside" = 0 ] &&
 		   [ "$server_serverside" = 1 ]
 	then
-		stdbuf -o0 -e0 printf "[OK]\n"
+		test_pass
 	else
-		stdbuf -o0 -e0 printf "[FAIL]\n"
-		stdbuf -o0 -e0 printf "\tExpected tokens (c:%s - s:%s) and server (c:%d - s:%d)\n" \
-			"${client_token}" "${server_token}" \
-			"${client_serverside}" "${server_serverside}"
+		test_fail "Expected tokens (c:${client_token} - s:${server_token}) and server (c:${client_serverside} - s:${server_serverside})"
 		exit 1
 	fi
 
@@ -255,7 +285,7 @@ check_expected_one()
 
 	if [ "${prev_ret}" = "0" ]
 	then
-		stdbuf -o0 -e0 printf "[FAIL]\n"
+		test_fail
 	fi
 
 	stdbuf -o0 -e0 printf "\tExpected value for '%s': '%s', got '%s'.\n" \
@@ -276,11 +306,11 @@ check_expected()
 
 	if [ ${rc} -eq 0 ]
 	then
-		stdbuf -o0 -e0 printf "[OK]\n"
+		test_pass
 		return 0
 	fi
 
-	ret=1
+	return 1
 }
 
 verify_announce_event()
@@ -326,13 +356,12 @@ test_announce()
 
 	local type
 	type=$(sed --unbuffered -n 's/.*\(type:\)\([[:digit:]]*\).*$/\2/p;q' "$server_evts")
-	stdbuf -o0 -e0 printf "ADD_ADDR 10.0.2.2 (ns2) => ns1, invalid token    \t\t"
+	print_test "ADD_ADDR 10.0.2.2 (ns2) => ns1, invalid token"
 	if [ "$type" = "" ]
 	then
-		stdbuf -o0 -e0 printf "[OK]\n"
+		test_pass
 	else
-		stdbuf -o0 -e0 printf "[FAIL]\n\ttype defined: %s\n" "${type}"
-		ret=1
+		test_fail "type defined: ${type}"
 	fi
 
 	# ADD_ADDR from the client to server machine reusing the subflow port
@@ -340,7 +369,7 @@ test_announce()
 	ip netns exec "$ns2"\
 	   ./pm_nl_ctl ann 10.0.2.2 token "$client4_token" id $client_addr_id dev\
 	   ns2eth1 > /dev/null 2>&1
-	stdbuf -o0 -e0 printf "ADD_ADDR id:%d 10.0.2.2 (ns2) => ns1, reuse port \t\t" $client_addr_id
+	print_test "ADD_ADDR id:${client_addr_id} 10.0.2.2 (ns2) => ns1, reuse port"
 	sleep 0.5
 	verify_announce_event $server_evts $ANNOUNCED $server4_token "10.0.2.2" $client_addr_id \
 			      "$client4_port"
@@ -349,7 +378,7 @@ test_announce()
 	:>"$server_evts"
 	ip netns exec "$ns2" ./pm_nl_ctl ann\
 	   dead:beef:2::2 token "$client6_token" id $client_addr_id dev ns2eth1 > /dev/null 2>&1
-	stdbuf -o0 -e0 printf "ADD_ADDR6 id:%d dead:beef:2::2 (ns2) => ns1, reuse port\t\t" $client_addr_id
+	print_test "ADD_ADDR6 id:${client_addr_id} dead:beef:2::2 (ns2) => ns1, reuse port"
 	sleep 0.5
 	verify_announce_event "$server_evts" "$ANNOUNCED" "$server6_token" "dead:beef:2::2"\
 			      "$client_addr_id" "$client6_port" "v6"
@@ -359,7 +388,7 @@ test_announce()
 	client_addr_id=$((client_addr_id+1))
 	ip netns exec "$ns2" ./pm_nl_ctl ann 10.0.2.2 token "$client4_token" id\
 	   $client_addr_id dev ns2eth1 port $new4_port > /dev/null 2>&1
-	stdbuf -o0 -e0 printf "ADD_ADDR id:%d 10.0.2.2 (ns2) => ns1, new port \t\t\t" $client_addr_id
+	print_test "ADD_ADDR id:${client_addr_id} 10.0.2.2 (ns2) => ns1, new port"
 	sleep 0.5
 	verify_announce_event "$server_evts" "$ANNOUNCED" "$server4_token" "10.0.2.2"\
 			      "$client_addr_id" "$new4_port"
@@ -370,7 +399,7 @@ test_announce()
 	# ADD_ADDR from the server to client machine reusing the subflow port
 	ip netns exec "$ns1" ./pm_nl_ctl ann 10.0.2.1 token "$server4_token" id\
 	   $server_addr_id dev ns1eth2 > /dev/null 2>&1
-	stdbuf -o0 -e0 printf "ADD_ADDR id:%d 10.0.2.1 (ns1) => ns2, reuse port \t\t" $server_addr_id
+	print_test "ADD_ADDR id:${server_addr_id} 10.0.2.1 (ns1) => ns2, reuse port"
 	sleep 0.5
 	verify_announce_event "$client_evts" "$ANNOUNCED" "$client4_token" "10.0.2.1"\
 			      "$server_addr_id" "$app4_port"
@@ -379,7 +408,7 @@ test_announce()
 	:>"$client_evts"
 	ip netns exec "$ns1" ./pm_nl_ctl ann dead:beef:2::1 token "$server6_token" id\
 	   $server_addr_id dev ns1eth2 > /dev/null 2>&1
-	stdbuf -o0 -e0 printf "ADD_ADDR6 id:%d dead:beef:2::1 (ns1) => ns2, reuse port\t\t" $server_addr_id
+	print_test "ADD_ADDR6 id:${server_addr_id} dead:beef:2::1 (ns1) => ns2, reuse port"
 	sleep 0.5
 	verify_announce_event "$client_evts" "$ANNOUNCED" "$client6_token" "dead:beef:2::1"\
 			      "$server_addr_id" "$app6_port" "v6"
@@ -389,7 +418,7 @@ test_announce()
 	server_addr_id=$((server_addr_id+1))
 	ip netns exec "$ns1" ./pm_nl_ctl ann 10.0.2.1 token "$server4_token" id\
 	   $server_addr_id dev ns1eth2 port $new4_port > /dev/null 2>&1
-	stdbuf -o0 -e0 printf "ADD_ADDR id:%d 10.0.2.1 (ns1) => ns2, new port \t\t\t" $server_addr_id
+	print_test "ADD_ADDR id:${server_addr_id} 10.0.2.1 (ns1) => ns2, new port"
 	sleep 0.5
 	verify_announce_event "$client_evts" "$ANNOUNCED" "$client4_token" "10.0.2.1"\
 			      "$server_addr_id" "$new4_port"
@@ -423,39 +452,34 @@ test_remove()
 	local invalid_token=$(( client4_token - 1 ))
 	ip netns exec "$ns2" ./pm_nl_ctl rem token $invalid_token id\
 	   $client_addr_id > /dev/null 2>&1
-	stdbuf -o0 -e0 printf "RM_ADDR id:%d ns2 => ns1, invalid token                    \t"\
-	       $client_addr_id
+	print_test "RM_ADDR id:${client_addr_id} ns2 => ns1, invalid token"
 	local type
 	type=$(sed --unbuffered -n 's/.*\(type:\)\([[:digit:]]*\).*$/\2/p;q' "$server_evts")
 	if [ "$type" = "" ]
 	then
-		stdbuf -o0 -e0 printf "[OK]\n"
+		test_pass
 	else
-		stdbuf -o0 -e0 printf "[FAIL]\n"
-		ret=1
+		test_fail
 	fi
 
 	# RM_ADDR using an invalid addr id should result in no action
 	local invalid_id=$(( client_addr_id + 1 ))
 	ip netns exec "$ns2" ./pm_nl_ctl rem token "$client4_token" id\
 	   $invalid_id > /dev/null 2>&1
-	stdbuf -o0 -e0 printf "RM_ADDR id:%d ns2 => ns1, invalid id                    \t"\
-	       $invalid_id
+	print_test "RM_ADDR id:${invalid_id} ns2 => ns1, invalid id"
 	type=$(sed --unbuffered -n 's/.*\(type:\)\([[:digit:]]*\).*$/\2/p;q' "$server_evts")
 	if [ "$type" = "" ]
 	then
-		stdbuf -o0 -e0 printf "[OK]\n"
+		test_pass
 	else
-		stdbuf -o0 -e0 printf "[FAIL]\n"
-		ret=1
+		test_fail
 	fi
 
 	# RM_ADDR from the client to server machine
 	:>"$server_evts"
 	ip netns exec "$ns2" ./pm_nl_ctl rem token "$client4_token" id\
 	   $client_addr_id > /dev/null 2>&1
-	stdbuf -o0 -e0 printf "RM_ADDR id:%d ns2 => ns1                                \t"\
-	       $client_addr_id
+	print_test "RM_ADDR id:${client_addr_id} ns2 => ns1"
 	sleep 0.5
 	verify_remove_event "$server_evts" "$REMOVED" "$server4_token" "$client_addr_id"
 
@@ -464,8 +488,7 @@ test_remove()
 	client_addr_id=$(( client_addr_id - 1 ))
 	ip netns exec "$ns2" ./pm_nl_ctl rem token "$client4_token" id\
 	   $client_addr_id > /dev/null 2>&1
-	stdbuf -o0 -e0 printf "RM_ADDR id:%d ns2 => ns1                                \t"\
-	       $client_addr_id
+	print_test "RM_ADDR id:${client_addr_id} ns2 => ns1"
 	sleep 0.5
 	verify_remove_event "$server_evts" "$REMOVED" "$server4_token" "$client_addr_id"
 
@@ -473,8 +496,7 @@ test_remove()
 	:>"$server_evts"
 	ip netns exec "$ns2" ./pm_nl_ctl rem token "$client6_token" id\
 	   $client_addr_id > /dev/null 2>&1
-	stdbuf -o0 -e0 printf "RM_ADDR6 id:%d ns2 => ns1                               \t"\
-	       $client_addr_id
+	print_test "RM_ADDR6 id:${client_addr_id} ns2 => ns1"
 	sleep 0.5
 	verify_remove_event "$server_evts" "$REMOVED" "$server6_token" "$client_addr_id"
 
@@ -484,8 +506,7 @@ test_remove()
 	# RM_ADDR from the server to client machine
 	ip netns exec "$ns1" ./pm_nl_ctl rem token "$server4_token" id\
 	   $server_addr_id > /dev/null 2>&1
-	stdbuf -o0 -e0 printf "RM_ADDR id:%d ns1 => ns2                                \t"\
-	       $server_addr_id
+	print_test "RM_ADDR id:${server_addr_id} ns1 => ns2"
 	sleep 0.5
 	verify_remove_event "$client_evts" "$REMOVED" "$client4_token" "$server_addr_id"
 
@@ -494,7 +515,7 @@ test_remove()
 	server_addr_id=$(( server_addr_id - 1 ))
 	ip netns exec "$ns1" ./pm_nl_ctl rem token "$server4_token" id\
 	   $server_addr_id > /dev/null 2>&1
-	stdbuf -o0 -e0 printf "RM_ADDR id:%d ns1 => ns2                                \t" $server_addr_id
+	print_test "RM_ADDR id:${server_addr_id} ns1 => ns2"
 	sleep 0.5
 	verify_remove_event "$client_evts" "$REMOVED" "$client4_token" "$server_addr_id"
 
@@ -502,7 +523,7 @@ test_remove()
 	:>"$client_evts"
 	ip netns exec "$ns1" ./pm_nl_ctl rem token "$server6_token" id\
 	   $server_addr_id > /dev/null 2>&1
-	stdbuf -o0 -e0 printf "RM_ADDR6 id:%d ns1 => ns2                               \t" $server_addr_id
+	print_test "RM_ADDR6 id:${server_addr_id} ns1 => ns2"
 	sleep 0.5
 	verify_remove_event "$client_evts" "$REMOVED" "$client6_token" "$server_addr_id"
 }
@@ -529,25 +550,24 @@ verify_subflow_events()
 	local dport
 	local locid
 	local remid
+	local info
+
+	info="${e_saddr} (${e_from}) => ${e_daddr} (${e_to})"
 
 	if [ "$e_type" = "$SUB_ESTABLISHED" ]
 	then
 		if [ "$e_family" = "$AF_INET6" ]
 		then
-			stdbuf -o0 -e0 printf "CREATE_SUBFLOW6 %s (%s) => %s (%s)    "\
-			       "$e_saddr" "$e_from" "$e_daddr" "$e_to"
+			print_test "CREATE_SUBFLOW6 ${info}"
 		else
-			stdbuf -o0 -e0 printf "CREATE_SUBFLOW %s (%s) => %s (%s)         \t"\
-			       "$e_saddr" "$e_from" "$e_daddr" "$e_to"
+			print_test "CREATE_SUBFLOW ${info}"
 		fi
 	else
 		if [ "$e_family" = "$AF_INET6" ]
 		then
-			stdbuf -o0 -e0 printf "DESTROY_SUBFLOW6 %s (%s) => %s (%s)   "\
-			       "$e_saddr" "$e_from" "$e_daddr" "$e_to"
+			print_test "DESTROY_SUBFLOW6 ${info}"
 		else
-			stdbuf -o0 -e0 printf "DESTROY_SUBFLOW %s (%s) => %s (%s)         \t"\
-			       "$e_saddr" "$e_from" "$e_daddr" "$e_to"
+			print_test "DESTROY_SUBFLOW ${info}"
 		fi
 	fi
 
@@ -818,7 +838,7 @@ test_subflows_v4_v6_mix()
 	:>"$client_evts"
 	ip netns exec "$ns1" ./pm_nl_ctl ann 10.0.2.1 token "$server6_token" id\
 	   $server_addr_id dev ns1eth2 > /dev/null 2>&1
-	stdbuf -o0 -e0 printf "ADD_ADDR4 id:%d 10.0.2.1 (ns1) => ns2, reuse port\t\t" $server_addr_id
+	print_test "ADD_ADDR4 id:${server_addr_id} 10.0.2.1 (ns1) => ns2, reuse port"
 	sleep 0.5
 	verify_announce_event "$client_evts" "$ANNOUNCED" "$client6_token" "10.0.2.1"\
 			      "$server_addr_id" "$app6_port"
@@ -863,25 +883,23 @@ test_prio()
 	sleep 0.5
 
 	# Check TX
-	stdbuf -o0 -e0 printf "MP_PRIO TX                                                 \t"
+	print_test "MP_PRIO TX"
 	count=$(ip netns exec "$ns2" nstat -as | grep MPTcpExtMPPrioTx | awk '{print $2}')
 	[ -z "$count" ] && count=0
 	if [ $count != 1 ]; then
-		stdbuf -o0 -e0 printf "[FAIL]\n\tCount != 1: %d\n" "${count}"
-		ret=1
+		test_fail "Count != 1: ${count}"
 	else
-		stdbuf -o0 -e0 printf "[OK]\n"
+		test_pass
 	fi
 
 	# Check RX
-	stdbuf -o0 -e0 printf "MP_PRIO RX                                                 \t"
+	print_test "MP_PRIO RX"
 	count=$(ip netns exec "$ns1" nstat -as | grep MPTcpExtMPPrioRx | awk '{print $2}')
 	[ -z "$count" ] && count=0
 	if [ $count != 1 ]; then
-		stdbuf -o0 -e0 printf "[FAIL]\n\tCount != 1: %d\n" "${count}"
-		ret=1
+		test_fail "Count != 1: ${count}"
 	else
-		stdbuf -o0 -e0 printf "[OK]\n"
+		test_pass
 	fi
 }
 
@@ -898,11 +916,9 @@ verify_listener_events()
 	local sport
 
 	if [ $e_type = $LISTENER_CREATED ]; then
-		stdbuf -o0 -e0 printf "CREATE_LISTENER %s:%s\t\t\t\t\t"\
-			$e_saddr $e_sport
+		print_test "CREATE_LISTENER $e_saddr:$e_sport"
 	elif [ $e_type = $LISTENER_CLOSED ]; then
-		stdbuf -o0 -e0 printf "CLOSE_LISTENER %s:%s\t\t\t\t\t"\
-			$e_saddr $e_sport
+		print_test "CLOSE_LISTENER $e_saddr:$e_sport"
 	fi
 
 	type=$(grep "type:$e_type," $evt |
@@ -927,7 +943,8 @@ test_listener()
 	print_title "Listener tests"
 
 	if ! mptcp_lib_kallsyms_has "mptcp_event_pm_listener$"; then
-		stdbuf -o0 -e0 printf "LISTENER events                                            \t[SKIP] Not supported\n"
+		print_test "LISTENER events"
+		test_skip
 		return
 	fi
 

-- 
2.40.1