bitpill 0.3.5

A personal medication management TUI application built in Rust.
Documentation 
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use chrono::{Local, Timelike};

use crate::application::ports::clock_port::ClockPort;

/// Provides the real system time via [`chrono::Local`].
///
/// Seconds and nanoseconds are zeroed so the returned datetime represents
/// the current minute rather than the precise instant.
pub struct SystemClock;

impl ClockPort for SystemClock {
    fn now(&self) -> chrono::NaiveDateTime {
        let now = Local::now().naive_local();
        now.with_second(0)
            .and_then(|dt| dt.with_nanosecond(0))
            .expect("zeroing seconds on a valid NaiveDateTime always succeeds")
    }
}

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

    #[test]
    fn now_zeroes_seconds_and_nanos() {
        let clk = SystemClock;
        let dt = clk.now();
        assert_eq!(dt.second(), 0);
        assert_eq!(dt.nanosecond(), 0);
    }
}