Implement support to report error,warning logs after every test case run.

Change-Id: Id5710e9ee3497b4bc1030d7fa69c182d2e1348c6
diff --git a/src/test/flows/flowsTest.py b/src/test/flows/flowsTest.py
index 8fa51fb..54d1ec7 100644
--- a/src/test/flows/flowsTest.py
+++ b/src/test/flows/flowsTest.py
@@ -25,12 +25,13 @@
 from OnosCtrl import OnosCtrl
 from OnosFlowCtrl import OnosFlowCtrl
 from OltConfig import OltConfig
+from CordLogger import CordLogger
 import random
 from threading import current_thread
 import collections
 log.setLevel('INFO')
 
-class flows_exchange(unittest.TestCase):
+class flows_exchange(CordLogger):
 
     #Use the first available device id as our device id to program flows
     app = 'org.onosproject.cli'