def test__top_job(self):
queue = Queue(DBH.job)
if len(queue.jobs()) > 0:
for j in queue.jobs():
j.remove()
self.assertEqual(len(queue.jobs()), 0)
self.assertRaises(QueueEmptyError, queue.top_job)
job_1 = Job(DBH.job, start='2010-01-01 10:00:00', priority=0).add()
job_2 = Job(DBH.job, start='2010-01-01 10:00:01', priority=-1).add()
job_3 = Job(DBH.job, start='2010-01-01 10:00:02', priority=1).add()
job_4 = Job(DBH.job, start='2999-12-31 23:59:59', priority=1).add()
job = queue.top_job()
self.assertEqual(job.id, job_3.id)
job_1.remove()
job_2.remove()
job_3.remove()
job_4.remove()
