netdev - [PATCH net-next 2/2] kselftest: rtnetlink: add pause and pause on fail flag

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Date: Tue, 12 Sep 2023 10:28:36 -0400
From: Daniel Mendes <dmendes@...hat.com>
To: netdev@...r.kernel.org
Cc: davem@...emloft.net,
	edumazet@...gle.com,
	kuba@...nel.org,
	pabeni@...hat.com,
	sd@...asysnail.net
Subject: [PATCH net-next 2/2] kselftest: rtnetlink: add pause and pause on fail flag

'Pause' prompts the user to press Enter to continue running tests
once one test has finished. Pause on fail on prompts the user to press
enter only when a test fails.

Modifications to kci_test_addrlft() and kci_test_ipsec_offload()
ensure that whenever end_test is called, [$ret -ne 0] indicates
failure. This allows end_test to really easily implement pause on fail
functionality.

Signed-off-by: Daniel Mendes <dmendes@...hat.com>
---
 tools/testing/selftests/net/rtnetlink.sh | 27 ++++++++++++++++++++----
 1 file changed, 23 insertions(+), 4 deletions(-)

diff --git a/tools/testing/selftests/net/rtnetlink.sh b/tools/testing/selftests/net/rtnetlink.sh
index daaf1bcc10ac..ef52d34551cf 100755
--- a/tools/testing/selftests/net/rtnetlink.sh
+++ b/tools/testing/selftests/net/rtnetlink.sh
@@ -32,6 +32,8 @@ ALL_TESTS="
 
 devdummy="test-dummy0"
 VERBOSE=0
+PAUSE=no
+PAUSE_ON_FAIL=no
 
 # Kselftest framework requirement - SKIP code is 4.
 ksft_skip=4
@@ -112,6 +114,17 @@ end_test()
 {
 	echo "$*"
 	[ "${VERBOSE}" = "1" ] && echo
+
+	if [[ $ret -ne 0 ]] && [[ "${PAUSE_ON_FAIL}" = "yes" ]]; then
+		echo "Hit enter to continue"
+		read a
+	fi;
+
+	if [ "${PAUSE}" = "yes" ]; then
+		echo "Hit enter to continue"
+		read a
+	fi
+
 }
 
 
@@ -286,8 +299,8 @@ kci_test_addrlft()
 	sleep 5
 	run_cmd_grep "10.23.11." ip addr show dev "$devdummy"
 	if [ $? -eq 0 ]; then
-		end_test "FAIL: preferred_lft addresses remaining"
 		check_err 1
+		end_test "FAIL: preferred_lft addresses remaining"
 		return
 	fi
 
@@ -779,8 +792,8 @@ kci_test_ipsec_offload()
 	# does offload show up in ip output
 	lines=`ip x s list | grep -c "crypto offload parameters: dev $dev dir"`
 	if [ $lines -ne 2 ] ; then
-		end_test "FAIL: ipsec_offload SA offload missing from list output"
 		check_err 1
+		end_test "FAIL: ipsec_offload SA offload missing from list output"
 	fi
 
 	# use ping to exercise the Tx path
@@ -806,8 +819,8 @@ EOF
 	ip x p flush
 	lines=`grep -c "SA count=0" $sysfsf`
 	if [ $lines -ne 1 ] ; then
-		end_test "FAIL: ipsec_offload SA not removed from driver"
 		check_err 1
+		end_test "FAIL: ipsec_offload SA not removed from driver"
 	fi
 
 	# clean up any leftovers
@@ -1254,6 +1267,8 @@ usage: ${0##*/} OPTS
         -t <test>   Test(s) to run (default: all)
                     (options: $(echo $ALL_TESTS))
         -v          Verbose mode (show commands and output)
+        -P          Pause after every test
+        -p          Pause after every failing test before cleanup (for debugging)
 EOF
 }
 
@@ -1271,15 +1286,19 @@ for x in ip tc;do
 	fi
 done
 
-while getopts t:hv o; do
+while getopts t:hvpP o; do
 	case $o in
 		t) TESTS=$OPTARG;;
 		v) VERBOSE=1;;
+		p) PAUSE_ON_FAIL=yes;;
+		P) PAUSE=yes;;
 		h) usage; exit 0;;
 		*) usage; exit 1;;
 	esac
 done
 
+[ $PAUSE = "yes" ] && PAUSE_ON_FAIL="no"
+
 kci_test_rtnl
 
 exit $?
-- 
2.41.0