1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46

//! `time_me` lib

#![deny(missing_docs)]
#![deny(unsafe_code)]
#![deny(clippy::all)]
#![warn(clippy::pedantic)]

use std::{thread, time};

use notify_rust::{Notification, Timeout};

/// prints "time!" after provided `Duration`
///
/// # Example
/// ```
/// use time_me::timer;
/// use std::time::Duration;
///
/// timer(Duration::from_millis(10));
/// // waits 10ms
/// // prints "time!"
/// ```
pub fn timer(timer_duration: time::Duration) {
    thread::sleep(timer_duration);
    println!("time!");
    let _ = Notification::new()
        .summary("time!")
        .body("timer is over")
        .timeout(Timeout::Milliseconds(5000))
        .show();
}

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn it_waits_for_ten_millis() {
        let now = time::Instant::now();
        let ten_millis = time::Duration::from_millis(10);

        timer(ten_millis);

        assert!(now.elapsed() >= ten_millis);
    }
}