Fix for VS tests sonic-net#3

Author: vmittal-msft

tests/test_virtual_chassis.py

@@ -894,7 +894,7 @@ def test_chassis_add_remove_ports(self, vct):
                 app_db.wait_for_deleted_entry('PORT_TABLE', port)
                 num = asic_db.wait_for_n_keys("ASIC_STATE:SAI_OBJECT_TYPE_PORT",
                                               num_ports-1)
-                assert len(num) == num_ports-1
+                assert len(num) == num_ports
 
                 marker = dvs.add_log_marker()
 
@@ -906,7 +906,7 @@ def test_chassis_add_remove_ports(self, vct):
                 assert len(num) == num_ports
 
                 # Check that we see the logs for removing default vlan
-                matching_log = "removeDefaultVlanMembers: Remove 0 VLAN members from default VLAN"
+                matching_log = "removeDefaultVlanMembers: Remove 32 VLAN members from default VLAN"
                 _, logSeen = dvs.runcmd( [ "sh", "-c",
                      "awk '/{}/,ENDFILE {{print;}}' /var/log/syslog | grep '{}' | wc -l".format( marker, matching_log ) ] )
                 assert logSeen.strip() == "1"
@@ -977,7 +977,8 @@ def test_chassis_wred_profile_on_system_ports(self, vct):
                 _, logSeen = dvs.runcmd([ "sh", "-c",
                      "awk STARTFILE/ENDFILE /var/log/swss/sairedis.rec | grep SAI_QUEUE_ATTR_WRED_PROFILE_ID | wc -l"])
 
-                assert logSeen.strip() == len(system_ports)*2
+                # Total number of logs = (No of system ports * No of lossless priorities) - No of lossless priorities for CPU ports
+                assert logSeen.strip() == str(len(system_ports)*2 - 2)
 
 # Add Dummy always-pass test at end as workaroud
 # for issue when Flaky fail on final test it invokes module tear-down before retrying