diff --git a/TestON/tests/USECASE/SegmentRouting/SRSanity/SRSanity.py b/TestON/tests/USECASE/SegmentRouting/SRSanity/SRSanity.py
index 631248b..c69645f 100755
--- a/TestON/tests/USECASE/SegmentRouting/SRSanity/SRSanity.py
+++ b/TestON/tests/USECASE/SegmentRouting/SRSanity/SRSanity.py
@@ -1,13 +1,12 @@
 # This test should always succeed. it runs cases 1,2,3
-#CASE1: 2x2 Leaf-Spine topo and test IP connectivity
-#CASE2: 4x4 topo + IP connectivity test
-#CASE3: Single switch topo + IP connectivity test
-#CASE4: 2x2 topo + 3-node ONOS CLUSTER + IP connectivity test
-#CASE5: 4x4 topo + 3-node ONOS CLUSTER + IP connectivity test
-#CASE6: Single switch + 3-node ONOS CLUSTER + IP connectivity test
+# CASE1: 2x2 Leaf-Spine topo and test IP connectivity
+# CASE2: 4x4 topo + IP connectivity test
+# CASE3: Single switch topo + IP connectivity test
+# CASE4: 2x2 topo + 3-node ONOS CLUSTER + IP connectivity test
+# CASE5: 4x4 topo + 3-node ONOS CLUSTER + IP connectivity test
+# CASE6: Single switch + 3-node ONOS CLUSTER + IP connectivity test
 
 class SRSanity:
-
     def __init__( self ):
         self.default = ''
 
@@ -17,26 +16,27 @@
         Start 2x2 Leaf-Spine topology
         Pingall
         """
-        from tests.USECASE.SegmentRouting.dependencies.Testcaselib import Testcaselib as run
-        if not hasattr(main,'apps'):
-            run.initTest(main)
+        from tests.USECASE.SegmentRouting.dependencies.Testcaselib import \
+            Testcaselib as run
+        if not hasattr( main, 'apps' ):
+            run.initTest( main )
 
         description = "Bridging and Routing sanity test with 2x2 Leaf-spine "
         main.case( description )
 
         main.cfgName = '2x2'
         main.numCtrls = 1
-        run.installOnos(main)
-        run.startMininet(main, 'cord_fabric.py')
-        #pre-configured routing and bridging test
-        run.checkFlows(main, minFlowCount=116)
-        run.pingAll(main, "CASE1")
-        #TODO Dynamic config of hosts in subnet
-        #TODO Dynamic config of host not in subnet
-        #TODO Dynamic config of vlan xconnect
-        #TODO Vrouter integration
-        #TODO Mcast integration
-        run.cleanup(main)
+        run.installOnos( main )
+        run.startMininet( main, 'cord_fabric.py' )
+        # pre-configured routing and bridging test
+        run.checkFlows( main, minFlowCount=116 )
+        run.pingAll( main, "CASE1" )
+        # TODO Dynamic config of hosts in subnet
+        # TODO Dynamic config of host not in subnet
+        # TODO Dynamic config of vlan xconnect
+        # TODO Vrouter integration
+        # TODO Mcast integration
+        run.cleanup( main )
 
     def CASE2( self, main ):
         """
@@ -44,24 +44,25 @@
         Start 4x4 Leaf-Spine topology
         Pingall
         """
-        from tests.USECASE.SegmentRouting.dependencies.Testcaselib import Testcaselib as run
-        if not hasattr(main,'apps'):
-            run.initTest(main)
+        from tests.USECASE.SegmentRouting.dependencies.Testcaselib import \
+            Testcaselib as run
+        if not hasattr( main, 'apps' ):
+            run.initTest( main )
         description = "Bridging and Routing sanity test with 4x4 Leaf-spine "
         main.case( description )
         main.cfgName = '4x4'
         main.numCtrls = 1
-        run.installOnos(main)
-        run.startMininet(main, 'cord_fabric.py', args="--leaf=4 --spine=4")
-        #pre-configured routing and bridging test
-        run.checkFlows(main, minFlowCount=350)
-        run.pingAll(main, 'CASE2')
-        #TODO Dynamic config of hosts in subnet
-        #TODO Dynamic config of host not in subnet
-        #TODO Dynamic config of vlan xconnect
-        #TODO Vrouter integration
-        #TODO Mcast integration
-        run.cleanup(main)
+        run.installOnos( main )
+        run.startMininet( main, 'cord_fabric.py', args="--leaf=4 --spine=4" )
+        # pre-configured routing and bridging test
+        run.checkFlows( main, minFlowCount=350 )
+        run.pingAll( main, 'CASE2' )
+        # TODO Dynamic config of hosts in subnet
+        # TODO Dynamic config of host not in subnet
+        # TODO Dynamic config of vlan xconnect
+        # TODO Vrouter integration
+        # TODO Mcast integration
+        run.cleanup( main )
 
     def CASE3( self, main ):
         """
@@ -69,24 +70,25 @@
         Start single switch topology
         Pingall
         """
-        from tests.USECASE.SegmentRouting.dependencies.Testcaselib import Testcaselib as run
-        if not hasattr(main,'apps'):
-            run.initTest(main)
+        from tests.USECASE.SegmentRouting.dependencies.Testcaselib import \
+            Testcaselib as run
+        if not hasattr( main, 'apps' ):
+            run.initTest( main )
         description = "Bridging and Routing sanity test with single switch "
         main.case( description )
         main.cfgName = '0x1'
         main.numCtrls = 1
-        run.installOnos(main)
-        run.startMininet(main, 'cord_fabric.py', args="--leaf=1 --spine=0")
-        #pre-configured routing and bridging test
-        run.checkFlows(main, minFlowCount=15)
-        run.pingAll(main, 'CASE3')
-        #TODO Dynamic config of hosts in subnet
-        #TODO Dynamic config of host not in subnet
-        #TODO Dynamic config of vlan xconnect
-        #TODO Vrouter integration
-        #TODO Mcast integration
-        run.cleanup(main)
+        run.installOnos( main )
+        run.startMininet( main, 'cord_fabric.py', args="--leaf=1 --spine=0" )
+        # pre-configured routing and bridging test
+        run.checkFlows( main, minFlowCount=15 )
+        run.pingAll( main, 'CASE3' )
+        # TODO Dynamic config of hosts in subnet
+        # TODO Dynamic config of host not in subnet
+        # TODO Dynamic config of vlan xconnect
+        # TODO Vrouter integration
+        # TODO Mcast integration
+        run.cleanup( main )
 
     def CASE4( self, main ):
         """
@@ -94,24 +96,25 @@
         Start 2x2 Leaf-Spine topology
         Pingall
         """
-        from tests.USECASE.SegmentRouting.dependencies.Testcaselib import Testcaselib as run
-        if not hasattr(main,'apps'):
-            run.initTest(main)
+        from tests.USECASE.SegmentRouting.dependencies.Testcaselib import \
+            Testcaselib as run
+        if not hasattr( main, 'apps' ):
+            run.initTest( main )
         description = "Bridging and Routing sanity test with 2x2 Leaf-spine "
         main.case( description )
         main.cfgName = '2x2'
         main.numCtrls = 3
-        run.installOnos(main)
-        run.startMininet(main, 'cord_fabric.py')
-        #pre-configured routing and bridging test
-        run.checkFlows(main, minFlowCount=116)
-        run.pingAll(main, 'CASE4')
-        #TODO Dynamic config of hosts in subnet
-        #TODO Dynamic config of host not in subnet
-        #TODO Dynamic config of vlan xconnect
-        #TODO Vrouter integration
-        #TODO Mcast integration
-        run.cleanup(main)
+        run.installOnos( main )
+        run.startMininet( main, 'cord_fabric.py' )
+        # pre-configured routing and bridging test
+        run.checkFlows( main, minFlowCount=116 )
+        run.pingAll( main, 'CASE4' )
+        # TODO Dynamic config of hosts in subnet
+        # TODO Dynamic config of host not in subnet
+        # TODO Dynamic config of vlan xconnect
+        # TODO Vrouter integration
+        # TODO Mcast integration
+        run.cleanup( main )
 
     def CASE5( self, main ):
         """
@@ -119,24 +122,25 @@
         Start 4x4 Leaf-Spine topology
         Pingall
         """
-        from tests.USECASE.SegmentRouting.dependencies.Testcaselib import Testcaselib as run
-        if not hasattr(main,'apps'):
-            run.initTest(main)
+        from tests.USECASE.SegmentRouting.dependencies.Testcaselib import \
+            Testcaselib as run
+        if not hasattr( main, 'apps' ):
+            run.initTest( main )
         description = "Bridging and Routing sanity test with 4x4 Leaf-spine "
         main.case( description )
         main.cfgName = '4x4'
         main.numCtrls = 3
-        run.installOnos(main)
-        run.startMininet(main, 'cord_fabric.py', args="--leaf=4 --spine=4")
-        #pre-configured routing and bridging test
-        run.checkFlows(main, minFlowCount=350)
-        run.pingAll(main, 'CASE5')
-        #TODO Dynamic config of hosts in subnet
-        #TODO Dynamic config of host not in subnet
-        #TODO Dynamic config of vlan xconnect
-        #TODO Vrouter integration
-        #TODO Mcast integration
-        run.cleanup(main)
+        run.installOnos( main )
+        run.startMininet( main, 'cord_fabric.py', args="--leaf=4 --spine=4" )
+        # pre-configured routing and bridging test
+        run.checkFlows( main, minFlowCount=350 )
+        run.pingAll( main, 'CASE5' )
+        # TODO Dynamic config of hosts in subnet
+        # TODO Dynamic config of host not in subnet
+        # TODO Dynamic config of vlan xconnect
+        # TODO Vrouter integration
+        # TODO Mcast integration
+        run.cleanup( main )
 
     def CASE6( self, main ):
         """
@@ -144,21 +148,22 @@
         Start single switch topology
         Pingall
         """
-        from tests.USECASE.SegmentRouting.dependencies.Testcaselib import Testcaselib as run
-        if not hasattr(main,'apps'):
-            run.initTest(main)
+        from tests.USECASE.SegmentRouting.dependencies.Testcaselib import \
+            Testcaselib as run
+        if not hasattr( main, 'apps' ):
+            run.initTest( main )
         description = "Bridging and Routing sanity test with single switch "
         main.case( description )
         main.cfgName = '0x1'
         main.numCtrls = 3
-        run.installOnos(main)
-        run.startMininet(main, 'cord_fabric.py', args="--leaf=1 --spine=0")
-        #pre-configured routing and bridging test
-        run.checkFlows(main, minFlowCount=15)
-        run.pingAll(main, 'CASE4')
-        #TODO Dynamic config of hosts in subnet
-        #TODO Dynamic config of host not in subnet
-        #TODO Dynamic config of vlan xconnect
-        #TODO Vrouter integration
-        #TODO Mcast integration
-        run.cleanup(main)
\ No newline at end of file
+        run.installOnos( main )
+        run.startMininet( main, 'cord_fabric.py', args="--leaf=1 --spine=0" )
+        # pre-configured routing and bridging test
+        run.checkFlows( main, minFlowCount=15 )
+        run.pingAll( main, 'CASE4' )
+        # TODO Dynamic config of hosts in subnet
+        # TODO Dynamic config of host not in subnet
+        # TODO Dynamic config of vlan xconnect
+        # TODO Vrouter integration
+        # TODO Mcast integration
+        run.cleanup( main )