def test_save__restore__delete_taskset(self):
tb = DatabaseBackend()
tid = uuid()
res = {u"something": "special"}
self.assertEqual(tb.save_taskset(tid, res), res)
res2 = tb.restore_taskset(tid)
self.assertEqual(res2, res)
tb.delete_taskset(tid)
self.assertIsNone(tb.restore_taskset(tid))
self.assertIsNone(tb.restore_taskset("xxx-nonexisting-id"))
