as code for sync locking no longer exists,
#[test]
fn test_ltc_frame_does_not_match_system_time() {
let now = Local::now();
// Create a time that is one hour ahead, wrapping around 23:00
let different_hour = (now.hour() + 1) % 24;
let frame = get_test_frame("LOCK", different_hour, now.minute(), now.second());
assert!(!frame.matches_system_time());
}