def test_change_empty_strings_stored_as_null(self):
        ticket = Ticket(self.env)
        ticket.insert()
        ticket.populate(dict((name, '') for name in ticket.editable_fields))
        ticket.save_changes()

        self._test_empty_strings_stored_as_null(ticket)
Test if the time limit works.
dataset/ETHPy150Open edgewall/trac/trac/ticket/tests/model.py/TicketTestCase.test_change_empty_strings_stored_as_null--crossover with--dataset/ETHPy150Open google/grr/grr/client/client_utils_test.py/ClientUtilsTest.testExecutionTimeLimit