def test_change_execution_time(self):
        job = self.scheduler.enqueue_at(datetime.utcnow(), say_hello)
        new_date = datetime(2010, 1, 1)
        self.scheduler.change_execution_time(job, new_date)
        self.assertEqual(to_unix(new_date),
            self.testconn.zscore(self.scheduler.scheduled_jobs_key, job.id))
        self.scheduler.cancel(job)
        self.assertRaises(ValueError, self.scheduler.change_execution_time, job, new_date)
Ensure ``change_execution_time`` is called, ensure that job's score is updated
dataset/ETHPy150Open ui/rq-scheduler/tests/test_scheduler.py/TestScheduler.test_change_execution_time