selftests: forwarding: fix "ok" action test

Fix the "ok" action test so it checks that packet that is okayed does not
continue to be processed by other rules. Fix error message as well.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

tools/testing/selftests/net/forwarding/tc_actions.sh

@@ -96,7 +96,10 @@ gact_drop_and_ok_test()
 		-t ip -q
 
 	tc_check_packets "dev $swp1 ingress" 101 1
-	check_err $? "Did not see trapped packet"
+	check_err $? "Did not see passed packet"
+
+	tc_check_packets "dev $swp1 ingress" 102 2
+	check_fail $? "Packet was dropped and it should not reach here"
 
 	tc filter del dev $swp1 ingress protocol ip pref 2 handle 102 flower
 	tc filter del dev $swp1 ingress protocol ip pref 1 handle 101 flower