Added new test case to SNMP-Alerts submenu

Changes:
    - Added test to configure SNMP manager with empty IP,
      negative IPand alphanumeric port and verify

Tested:
    - Ran successfully test_snmp_alerts_sub_menu.robot

Change-Id: I4a8be9c63e426d22e131216c1817a3b83a2d5e9d
Signed-off-by: Megha G N <[email protected]>

Author: meghagn5

gui/gui_test/settings_menu/test_snmp_alerts_sub_menu.robot

@@ -115,8 +115,11 @@ Configure Invalid SNMP Settings On BMC Via GUI And Verify
     ${SNMP_MGR1_IP}     ${out_of_range_port}     ${invalid_port_error}
     ${SNMP_MGR1_IP}     ${alpha_port}            ${invalid_port_error}
     ${SNMP_MGR1_IP}     ${negative_port}         ${invalid_port_error}
+    ${SNMP_MGR1_IP}     ${alphanumeric_port}     ${invalid_port_error}
     ${out_of_range_ip}  ${NON_DEFAULT_PORT1}     ${invalid_destination_error}
     ${alpha_ip}         ${NON_DEFAULT_PORT1}     ${invalid_destination_error}
+    ${negative_ip}      ${NON_DEFAULT_PORT1}     ${invalid_destination_error}
+    ${empty_ip}         ${NON_DEFAULT_PORT1}     ${invalid_destination_error}
 
 
 Configure Multiple SNMP Managers On BMC Via GUI And Verify

lib/snmp/resource.robot

@@ -11,6 +11,8 @@ ${SNMP_MGR3_IP}       10.6.6.8
 ${out_of_range_ip}    10.6.6.256
 ${alpha_ip}           xx.xx.xx.xx
 ${less_octet_ip}      10.5.5
+${negative_ip}        -10.6.6.6
+${empty_ip}           ${EMPTY}
 
 # Valid and invalid IP and ports. Valid port range is 0-65535.
 # Default port is 162.
@@ -22,6 +24,7 @@ ${out_of_range_port}  ${65536}
 ${alpha_port}         ab
 ${negative_port}      ${-12}
 ${empty_port}         ${EMPTY}
+${alphanumeric_port}  abc123
 
 # User Name Password
 ${SNMP_MGR1_USERNAME}    ${EMPTY}