src/tools/clippy/tests/ui/unchecked_time_subtraction.fixed

#![warn(clippy::unchecked_time_subtraction)]

use std::time::{Duration, Instant};

fn main() {
    let _first = Instant::now();
    let second = Duration::from_secs(3);

    let _ = _first.checked_sub(second).unwrap();
    //~^ unchecked_time_subtraction

    let _ = Instant::now().checked_sub(Duration::from_secs(5)).unwrap();
    //~^ unchecked_time_subtraction

    let _ = _first.checked_sub(Duration::from_secs(5)).unwrap();
    //~^ unchecked_time_subtraction

    let _ = Instant::now().checked_sub(second).unwrap();
    //~^ unchecked_time_subtraction

    // Duration - Duration cases
    let dur1 = Duration::from_secs(5);
    let dur2 = Duration::from_secs(3);

    let _ = dur1.checked_sub(dur2).unwrap();
    //~^ unchecked_time_subtraction

    let _ = Duration::from_secs(10) - Duration::from_secs(5);

    let _ = second.checked_sub(dur1).unwrap();
    //~^ unchecked_time_subtraction

    // Duration multiplication and subtraction
    let _ = (2 * dur1).checked_sub(dur2).unwrap();
    //~^ unchecked_time_subtraction
}

fn issue16230() {
    use std::ops::Sub as _;

    Duration::ZERO.checked_sub(Duration::MAX).unwrap();
    //~^ unchecked_time_subtraction

    let _ = Duration::ZERO.checked_sub(Duration::MAX).unwrap();
    //~^ unchecked_time_subtraction
}

fn issue16234() {
    use std::ops::Sub as _;

    macro_rules! duration {
        ($secs:expr) => {
            Duration::from_secs($secs)
        };
    }

    let d = duration!(0);
    d.checked_sub(duration!(1)).unwrap();
    //~^ unchecked_time_subtraction
    let _ = d.checked_sub(duration!(1)).unwrap();
    //~^ unchecked_time_subtraction
}

fn issue16499() {
    let _ = Duration::from_millis(2) - Duration::from_millis(1);
    let _ = Duration::new(10000, 0) - Duration::from_secs(1);
    let _ = Duration::from_nanos_u128(1000) - Duration::from_nanos(100);
    let _ = Duration::from_secs_f32(1.5) - Duration::from_secs_f64(0.5);
    let _ = Duration::from_mins(70) - Duration::from_hours(1);
}