--- a/cubicweb/test/unittest_utils.py	Fri Oct 07 14:59:44 2016 +0200
+++ b/cubicweb/test/unittest_utils.py	Wed Oct 12 11:09:08 2016 +0200
@@ -203,6 +203,7 @@
     def test_encoding_unknown_stuff(self):
         self.assertEqual(self.encode(TestCase), 'null')
 
+
 class HTMLHeadTC(CubicWebTC):
 
     def htmlhead(self, datadir_url):