clocks - a testable source of time

This crate provides a Clock type that can be used as a source of time. By using a clock in your code, you make it possible to replace the time source during testing. This can allow you to more simply test things like expiry times.

Example usage: ```rust use chrono::{DateTime, Utc}; use clocks::Clock;

struct Prod { clock: Clock, }

impl Prod { pub fn new() -> Self { Self::newwithclock(Clock::new()) }

pub fn new_with_clock(clock: Clock<Utc>) -> Self {
    Self { clock }
}

pub fn get_time(&self) -> String {
    self.clock.now().to_rfc2822()
}

}

fn main() { let p = Prod::new(); println!("{}", p.get_time()); }

[test]

fn testbasic() { let start = DateTime::parsefromrfc2822("Sun, 18 Sep 2022 20:53:00 GMT") .unwrap() .withtimezone(&Utc); let c = Clock::newfake(start.clone()); let p = Prod::newwithclock(c); asserteq!(p.get_time(), "Sun, 18 Sep 2022 20:53:00 +0000"); } ```

License

This code is made available under either an Apache-2.0 or an MIT license.