Initial set of Fabric switch test cases

Change-Id: I86fd2b67d3b773aa496f5ef61f1e1fdf51fd9925
diff --git a/Fabric/Tests/cleanup_flows.py b/Fabric/Tests/cleanup_flows.py
new file mode 100755
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+++ b/Fabric/Tests/cleanup_flows.py
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+
+# Copyright 2017-present Open Networking Foundation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+"""
+Check README file
+"""
+import Queue
+
+from oftest import config
+import inspect
+import logging
+import oftest.base_tests as base_tests
+import ofp
+import time
+from oftest.oft12.testutils import delete_all_flows_one_table
+from oftest.testutils import *
+from accton_util import *
+from oftest.utils import *
+
+class CleanupAllFlows( base_tests.SimpleDataPlane ):
+    """
+    Clean-up all flows in the switch 
+    """
+
+    def runTest( self ):
+            logging.info( "Cleanup Start" )
+            delete_all_flows( self.controller )
+            delete_all_groups( self.controller )
+            logging.info( "Cleanup Completed" )
+