'Schedule something with a time collision to make sure the heap comparison works
PYTHON-473'

@patch('time.time', return_value=3)
@patch('cassandra.cluster._Scheduler.run')
def test_event_delay_timing(self, *_):

    sched = _Scheduler(None)
    sched.schedule(0, (lambda : None))
    sched.schedule(0, (lambda : None))
