self.assertEqual(return_value, expected_value)
with self.assertRaises(Exception) as context:
self.db.get_one("vnfrs", {"_id": vnf_instance_id})
self.assertEqual(return_value, expected_value)
with self.assertRaises(Exception) as context:
self.db.get_one("vnfrs", {"_id": vnf_instance_id})