[VOL-3013][VOL-3015] Update DT and ATT TCs to replicate desired workflow

Change-Id: I2d4a3501ac6008b076eaaddbd8c5e6384369ea4f
diff --git a/tests/functional/Voltha_PODTests.robot b/tests/functional/Voltha_PODTests.robot
index d7f49e7..7671f1a 100644
--- a/tests/functional/Voltha_PODTests.robot
+++ b/tests/functional/Voltha_PODTests.robot
@@ -84,6 +84,8 @@
         ${src}=    Set Variable    ${hosts.src[${I}]}
         ${dst}=    Set Variable    ${hosts.dst[${I}]}
         ${onu_device_id}=    Get Device ID From SN    ${src['onu']}
+        ${onu_port}=    Run Keyword And Continue On Failure    Wait Until Keyword Succeeds    ${timeout}    2s
+        ...    Get ONU Port in ONOS    ${src['onu']}    ${of_id}
         Wait Until Keyword Succeeds    ${timeout}    5s    Validate Device    ENABLED    DISCOVERED
         ...    UNREACHABLE    ${src['onu']}    onu=false
         #Verify that ping fails
@@ -91,6 +93,9 @@
         ...    Run Keyword And Continue On Failure    Wait Until Keyword Succeeds    60s    2s
         ...    Check Ping    False    ${dst['dp_iface_ip_qinq']}    ${src['dp_iface_name']}
         ...    ${src['ip']}    ${src['user']}    ${src['pass']}    ${src['container_type']}    ${src['container_name']}
+        # Remove Subscriber Access (To replicate ATT workflow)
+        Wait Until Keyword Succeeds    ${timeout}    2s    Execute ONOS CLI Command    ${ONOS_SSH_IP}
+        ...    ${ONOS_SSH_PORT}    volt-remove-subscriber-access ${of_id} ${onu_port}
     END
     #Enable the OLT back and check ONU, OLT status are back to "ACTIVE"
     Enable Device    ${olt_device_id}
@@ -98,24 +103,8 @@
     ...    ${olt_serial_number}
     Wait Until Keyword Succeeds    ${timeout}    5s    Validate OLT Port Types
     ...    PON_OLT    ETHERNET_NNI
-    FOR    ${I}    IN RANGE    0    ${num_onus}
-        ${src}=    Set Variable    ${hosts.src[${I}]}
-        ${dst}=    Set Variable    ${hosts.dst[${I}]}
-        ${onu_device_id}=    Get Device ID From SN    ${src['onu']}
-        ${onu_port}=    Wait Until Keyword Succeeds    ${timeout}    2s    Get ONU Port in ONOS    ${src['onu']}
-        ...    ${of_id}
-        Wait Until Keyword Succeeds    ${timeout}    5s    Validate Device    ENABLED    ACTIVE
-        ...    REACHABLE    ${src['onu']}    onu=True    onu_reason=omci-flows-pushed
-        Run Keyword And Continue On Failure    Wait Until Keyword Succeeds    ${timeout}    2s
-        ...    Validate Subscriber DHCP Allocation    ${ONOS_SSH_IP}    ${ONOS_SSH_PORT}    ${onu_port}
-        #Verify that ping workss fine again
-        Run Keyword If    ${has_dataplane}
-        ...    Run Keyword And Continue On Failure    Wait Until Keyword Succeeds    60s    2s
-        ...    Check Ping    True    ${dst['dp_iface_ip_qinq']}    ${src['dp_iface_name']}
-        ...    ${src['ip']}    ${src['user']}    ${src['pass']}    ${src['container_type']}    ${src['container_name']}
-        Run Keyword and Ignore Error   Collect Logs
-    END
-
+    Run Keyword If    ${has_dataplane}    Clean Up Linux
+    Wait Until Keyword Succeeds    ${timeout}    2s    Perform Sanity Test
 
 Test Disable and Enable ONU
     [Documentation]    Validates E2E Ping Connectivity and object states for the given scenario: