SEBA-497 delayering, Makefile, and tox for fabric-crossconnect-synchronizer

Change-Id: Ibcf8fd06b9ad94d3f198887c18be7adfa4d5a954
diff --git a/xos/synchronizer/models/test_models.py b/xos/synchronizer/models/test_models.py
index 47b1bb2..25f83ed 100755
--- a/xos/synchronizer/models/test_models.py
+++ b/xos/synchronizer/models/test_models.py
@@ -13,20 +13,25 @@
 # limitations under the License.
 
 import unittest
-import os, sys
+import os
+import sys
 from mock import patch, Mock, MagicMock
 
-test_path=os.path.abspath(os.path.dirname(os.path.realpath(__file__)))
+test_path = os.path.abspath(os.path.dirname(os.path.realpath(__file__)))
 
 # mocking XOS exception, as they're based in Django
+
+
 class Exceptions:
     XOSValidationError = Exception
     XOSProgrammingError = Exception
     XOSPermissionDenied = Exception
 
+
 class XOS:
     exceptions = Exceptions
 
+
 class TestFabricCrossconnectModels(unittest.TestCase):
     def setUp(self):
 
@@ -40,7 +45,6 @@
         self.models_decl.BNGPortMapping_decl.objects = Mock()
         self.models_decl.BNGPortMapping_decl.objects.filter.return_value = []
 
-
         modules = {
             'xos': MagicMock(),
             'xos.exceptions': self.xos.exceptions,
@@ -115,5 +119,6 @@
 
         self.assertEqual(e.exception.message, 'Malformed range 123,')
 
+
 if __name__ == '__main__':
     unittest.main()