```rust #[cfg(test)] mod tests { use chrono::{Duration, Local}; use super::*; #[test] fn it_works() { let a: DateTime = Local::now(); println!("{}", rand_time(a.sub(Duration::days(180)),a)); println!("{}", rand_id_no(a)); println!("{}", rand_phone()); println!("{}",rand_name()); } } ```