Multiple DHCP Test case

Changes:
    Added new test case

Tested:
    Tested on BMC Environmet

Change-Id: Ib8586dbce2b0e8f71822a54d85948255f938784e
Signed-off-by: Sweta Potthuri <[email protected]>

redfish/managers/test_multiple_interfaces_dhcp.robot

@@ -32,6 +32,8 @@ ${ethernet_interface}     eth1
 ...                                UseNTPServers=${False}
 ...                                UseDNSServers=${False}
 
+Force Tags                         Multiple_Interfaces_DHCP
+
 *** Test Cases ***
 
 Disable DHCP On Eth1 And Verify System Is Accessible By Eth0
@@ -68,8 +70,37 @@ Set Network Property via Redfish And Verify
     ${enable_multiple_properties}
     ${disable_multiple_properties}
 
+Enable DHCP On Eth1 And Check No Impact On Eth0
+    [Documentation]  Enable DHCP On Eth1 And Check No Impact On Eth0.
+    [Tags]  Enable_DHCP_On_Eth1_And_Check_No_Impact_On_Eth0
+    [Setup]  Set DHCPEnabled To Enable Or Disable  False  eth1
+
+    # Getting the eth0 details before enabling DHCP.
+    ${ip_data_before}=  Get BMC IP Info
+
+    # Enable DHCP.
+    Set DHCPEnabled To Enable Or Disable  True  eth1
+
+    # Check the value of DHCPEnabled on eth0 is not impacted.
+    ${DHCPEnabled}=  Get IPv4 DHCP Enabled Status
+    Should Be Equal  ${DHCPEnabled}  ${False}
+
+    # Getting eth0 details after enabling DHCP.
+    ${ip_data_after}=  Get BMC IP Info
+
+    # Before and after IP details must match.
+    Should Be Equal  ${ip_data_before}  ${ip_data_after}
+
 *** Keywords ***
 
+Get IPv4 DHCP Enabled Status
+    [Documentation]  Return IPv4 DHCP enabled status from redfish URI.
+
+    ${active_channel_config}=  Get Active Channel Config
+    ${ethernet_interface}=  Set Variable  ${active_channel_config['${CHANNEL_NUMBER}']['name']}
+    ${resp}=  Redfish.Get Attribute  ${REDFISH_NW_ETH_IFACE}${ethernet_interface}  DHCPv4
+    Return From Keyword  ${resp['DHCPEnabled']}
+
 Set DHCPEnabled To Enable Or Disable
     [Documentation]  Enable or Disable DHCP on the interface.
     [Arguments]  ${dhcp_enabled}=${False}  ${interface}=${ethernet_interface}