diff --git a/TestON/tests/USECASE_SdnipFunction/Dependency/Functions.py b/TestON/tests/USECASE_SdnipFunction/Dependency/Functions.py
new file mode 100644
index 0000000..0f25012
--- /dev/null
+++ b/TestON/tests/USECASE_SdnipFunction/Dependency/Functions.py
@@ -0,0 +1,143 @@
+
+def checkRouteNum( main, routeNumExpected ):
+    main.step( "Check routes installed" )
+    main.log.info( "Route number expected:" )
+    main.log.info( routeNumExpected )
+    main.log.info( "Route number from ONOS CLI:" )
+
+    routeNumActual = main.ONOScli.ipv4RouteNumber()
+    main.log.info( routeNumActual )
+    utilities.assertEquals( \
+        expect = routeNumExpected, actual = routeNumActual,
+        onpass = "***Route number is correct!***",
+        onfail = "***Route number is wrong!***" )
+
+def checkM2SintentNum( main, intentNumExpected ):
+    main.step( "Check M2S intents installed" )
+    main.log.info( "Intent number expected:" )
+    main.log.info( intentNumExpected )
+    main.log.info( "Intent number from ONOS CLI:" )
+    jsonResult = main.ONOScli.intents( jsonFormat = True, summary = True,
+                                       TYPE = "multiPointToSinglePoint" )
+    intentNumActual = jsonResult['installed']
+    main.log.info( intentNumActual )
+    utilities.assertEquals( \
+        expect = intentNumExpected, actual = intentNumActual,
+        onpass = "***M2S intent number is correct!***",
+        onfail = "***M2S intent number is wrong!***" )
+
+def checkP2PintentNum( main, intentNumExpected ):
+    main.step( "Check P2P intents installed" )
+    main.log.info( "Intent number expected:" )
+    main.log.info( intentNumExpected )
+    main.log.info( "Intent number from ONOS CLI:" )
+    jsonResult = main.ONOScli.intents( jsonFormat = True, summary = True,
+                                       TYPE = "pointToPoint" )
+    intentNumActual = jsonResult['installed']
+    main.log.info( intentNumActual )
+    utilities.assertEquals( \
+        expect = intentNumExpected, actual = intentNumActual,
+        onpass = "***P2P intent number is correct!***",
+        onfail = "***P2P intent number is wrong!***" )
+
+def checkFlowNum( main, switch, flowNumExpected ):
+    main.step( "Check flow entry number in " + switch )
+    main.log.info( "Flow number expected:" )
+    main.log.info( flowNumExpected )
+    main.log.info( "Flow number actual:" )
+    flowNumActual = main.Mininet.getSwitchFlowCount( switch )
+    main.log.info( flowNumActual )
+    utilities.assertEquals( \
+        expect = flowNumExpected, actual = flowNumActual,
+        onpass = "***Flow number in " + switch + " is correct!***",
+        onfail = "***Flow number in " + switch + " is wrong!***" )
+
+
+def pingSpeakerToPeer( main, speakers = ["speaker1"],
+                       peers = ["peer64514", "peer64515", "peer64516"],
+                       expectAllSuccess = True ):
+    """
+    Carry out ping test between each BGP speaker and peer pair
+    Optional argument:
+        * speakers - BGP speakers
+        * peers - BGP peers
+        * expectAllSuccess - boolean indicating if you expect all results
+        succeed if True, otherwise expect all results fail if False
+    """
+    if len( speakers ) == 0:
+        main.log.error( "Parameter speakers can not be empty." )
+        main.cleanup()
+        main.exit()
+    if len( peers ) == 0:
+        main.log.error( "Parameter speakers can not be empty." )
+        main.cleanup()
+        main.exit()
+
+    if expectAllSuccess:
+        main.step( "Check ping between BGP peers and speakers, expect all tests\
+        will SUCCEED" )
+    else:
+        main.step( "Check ping between BGP peers and speakers, expect all tests\
+        will FAIL" )
+
+    result = True
+    if expectAllSuccess:
+        for speaker in speakers:
+            for peer in peers:
+                tmpResult = main.Mininet.pingHost( src = speaker,
+                                                   target = peer )
+                result = result and ( tmpResult == main.TRUE )
+    else:
+        for speaker in speakers:
+            for peer in peers:
+                tmpResult = main.Mininet.pingHost( src = speaker,
+                                                   target = peer )
+
+    utilities.assert_equals( expect = True, actual = result,
+                             onpass = "Ping test results are expected",
+                             onfail = "Ping test results are Not expected" )
+
+    if result == False:
+        main.cleanup()
+        main.exit()
+
+
+def pingHostToHost( main, hosts = ["host64514", "host64515", "host64516"],
+                expectAllSuccess = True ):
+    """
+    Carry out ping test between each BGP host pair
+    Optional argument:
+        * hosts - hosts behind BGP peer routers
+        * expectAllSuccess - boolean indicating if you expect all results
+        succeed if True, otherwise expect all results fail if False
+    """
+    main.step( "Check ping between each host pair" )
+    if len( hosts ) == 0:
+        main.log.error( "Parameter hosts can not be empty." )
+        main.cleanup()
+        main.exit()
+
+    result = True
+    if expectAllSuccess:
+        for srcHost in hosts:
+            for targetHost in hosts:
+                if srcHost != targetHost:
+                    tmpResult = main.Mininet.pingHost( src = srcHost,
+                                                       target = targetHost )
+                    result = result and ( tmpResult == main.TRUE )
+    else:
+        for srcHost in hosts:
+            for targetHost in hosts:
+                if srcHost != targetHost:
+                    tmpResult = main.Mininet.pingHost( src = srcHost,
+                                                       target = targetHost )
+                    result = result and ( tmpResult == main.FALSE )
+
+    utilities.assert_equals( expect = True, actual = result,
+                             onpass = "Ping test results are expected",
+                             onfail = "Ping test results are Not expected" )
+
+    if result == False:
+        main.cleanup()
+        main.exit()
+