diff -r e65873ad0371 -r 50f046bf0e50 server/test/unittest_schemaserial.py
--- a/server/test/unittest_schemaserial.py	Tue Sep 16 16:39:23 2014 +0200
+++ b/server/test/unittest_schemaserial.py	Tue Sep 16 15:28:35 2014 +0200
@@ -441,6 +441,8 @@
         self.assertEqual('O works_for S',
                          schema['has_employee'].rule)
         self.assertEqual([('Company', 'Int')], list(schema['total_salary'].rdefs))
+        self.assertEqual('Any SUM(SA) GROUPBY X WHERE P works_for X, P salary SA',
+                         schema['total_salary'].rdefs['Company', 'Int'].formula)
 
 if __name__ == '__main__':
     unittest_main()