#[test]
fn test_service_bandwidth_upgrade() {
use tmflib::tmf638::service::{Characteristic, Service};
let service = Service::new("TestService")
.with_characteristic(Characteristic::new("bandwidth".to_string(), 100.into()));
let current_bandwidth = service.get_characteristics("bandwidth");
assert_eq!(current_bandwidth.is_some(), true);
assert_eq!(current_bandwidth.unwrap().len(), 1);
}