Fixes for new jenkins environment and other tweeks

    - Fix ERROR message if there are no traffic components to cleanup
    - Use full path for "sudo ip" command
    - Fix missing testcase declarations
    - Make sure we creat dst host components in topology.ping()

Change-Id: Ie01ed72f26fa4c3187f61fefa63f4a791d77b88d
diff --git a/TestON/tests/USECASE/SegmentRouting/SRStaging/SRpairedLeaves/SRpairedLeaves.py b/TestON/tests/USECASE/SegmentRouting/SRStaging/SRpairedLeaves/SRpairedLeaves.py
index 077df04..5911832 100644
--- a/TestON/tests/USECASE/SegmentRouting/SRStaging/SRpairedLeaves/SRpairedLeaves.py
+++ b/TestON/tests/USECASE/SegmentRouting/SRStaging/SRpairedLeaves/SRpairedLeaves.py
@@ -48,6 +48,7 @@
         """
         try:
             from tests.USECASE.SegmentRouting.SRStaging.dependencies.SRStagingTest import SRStagingTest
+            from tests.USECASE.SegmentRouting.dependencies.Testcaselib import Testcaselib as run
             import json
         except ImportError:
             main.log.error( "SRStagingTest not found. Exiting the test" )
@@ -63,6 +64,7 @@
                               topology='0x2',
                               onosNodes=3,
                               description="%s tests on the %s pod" % ( descPrefix, pod ) )
+        hosts = [ 'h1', 'h2', 'h3', 'mgmt' ]
         run.pingAllFabricIntfs( main, hosts, dumpFlows=False )
         main.funcs.cleanup( main )