def test_events_have_default_handlers(self):
        inst = Sijax()
        cls = inst.__class__
        events = [getattr(cls, attr) for attr in dir(cls) if attr.startswith('EVENT_')]
        for event in events:
            self.assertTrue(inst.has_event(event), event % "No handler for %s")
dataset/ETHPy150Open spantaleev/sijax-python/tests/sijax_tests.py/SijaxMainTestCase.test_events_have_default_handlers/swapped operands of `%`