tests: Add custom header to expected headers

rhodecode/tests/lib/middleware/test_simplesvn.py

@@ -141,7 +141,8 b' class TestSimpleSvnApp(object):'
         }
         expected_headers = [
             ('MS-Author-Via', 'DAV'),
-            ('SVN-Supported-Posts', 'create-txn-with-props')
+            ('SVN-Supported-Posts', 'create-txn-with-props'),
+            ('X-RhodeCode-Backend', 'svn'),
         ]
         response_headers = self.app._get_response_headers(headers)
         assert sorted(response_headers) == sorted(expected_headers)
@@ -175,7 +176,8 b' class TestSimpleSvnApp(object):'
         }
         expected_response_headers = [
             ('SVN-Supported-Posts', 'create-txn-with-props'),
-            ('MS-Author-Via', 'DAV')
+            ('MS-Author-Via', 'DAV'),
+            ('X-RhodeCode-Backend', 'svn'),
         ]
         request_mock.assert_called_once_with(
             self.environment['REQUEST_METHOD'], expected_url,