[SDFAB-635] Save Onos Diagnostics if a testcase fails

  - Add to Segment Routing utility module's cleanup
    function, so most tests don't need to explicitly
    call function

Change-Id: I47c8b7ae39350631037f61e5194afc1e5a40896f
diff --git a/TestON/tests/USECASE/SegmentRouting/SRBridging/SRBridging.params.tucson b/TestON/tests/USECASE/SegmentRouting/SRBridging/SRBridging.params.tucson
index ee37414..5ed9047 100644
--- a/TestON/tests/USECASE/SegmentRouting/SRBridging/SRBridging.params.tucson
+++ b/TestON/tests/USECASE/SegmentRouting/SRBridging/SRBridging.params.tucson
@@ -32,6 +32,7 @@
         <appName>onos-classic</appName>
         <namespace>tost</namespace>
     </kubernetes>
+    <use_stern>True</use_stern>
 
     <ENV>
         <cellName>productionCell</cellName>
diff --git a/TestON/tests/USECASE/SegmentRouting/SRBridging/SRBridging.params.tucson.debug b/TestON/tests/USECASE/SegmentRouting/SRBridging/SRBridging.params.tucson.debug
index 96c859f..ceee8a5 100644
--- a/TestON/tests/USECASE/SegmentRouting/SRBridging/SRBridging.params.tucson.debug
+++ b/TestON/tests/USECASE/SegmentRouting/SRBridging/SRBridging.params.tucson.debug
@@ -32,6 +32,7 @@
         <appName>onos-classic</appName>
         <namespace>tost</namespace>
     </kubernetes>
+    <use_stern>True</use_stern>
 
     <ENV>
         <cellName>productionCell</cellName>