#[cfg(test)]
mod duration {
    use std::time::Duration;
    use time_humanize::HumanTime;

    #[test]
    fn now() {
        let ht = HumanTime::now();
        let english = format!("{}", ht);
        assert_eq!("now", english);
    }

    #[test]
    fn plus_1s() {
        let ht = HumanTime::from(Duration::from_secs(1));
        let english = format!("{}", ht);
        assert_eq!("now", english);
    }

    #[test]
    fn minus_1s() {
        let ht = HumanTime::from_seconds(-1);
        let english = format!("{}", ht);
        assert_eq!("now", english);
    }

    #[test]
    fn plus_5s() {
        let ht = HumanTime::from(Duration::from_secs(5));
        let english = format!("{}", ht);
        assert_eq!("now", english);
    }

    #[test]
    fn minus_5s() {
        let ht = HumanTime::from_seconds(-5);
        let english = format!("{}", ht);
        assert_eq!("now", english);
    }

    #[test]
    fn plus_10s() {
        let ht = HumanTime::from(Duration::from_secs(10));
        let english = format!("{}", ht);
        assert_eq!("now", english);
    }

    #[test]
    fn minus_10s() {
        let ht = HumanTime::from_seconds(-10);
        let english = format!("{}", ht);
        assert_eq!("now", english);
    }

    #[test]
    fn plus_15s() {
        let ht = HumanTime::from(Duration::from_secs(15));
        let english = format!("{}", ht);
        assert_eq!("in 15 seconds", english);
    }

    #[test]
    fn minus_15s() {
        let ht = HumanTime::from_seconds(-15);
        let english = format!("{}", ht);
        assert_eq!("15 seconds ago", english);
    }

    #[test]
    fn plus_95s() {
        let ht = HumanTime::from(Duration::from_secs(95));
        let english = format!("{}", ht);
        assert_eq!("in 2 minutes", english);
    }

    #[test]
    fn minus_95s() {
        let ht = HumanTime::from_seconds(-95);
        let english = format!("{}", ht);
        assert_eq!("2 minutes ago", english);
    }

    #[test]
    fn plus_125s() {
        let ht = HumanTime::from(Duration::from_secs(125));
        let english = format!("{}", ht);
        assert_eq!("in 2 minutes", english);
    }

    #[test]
    fn minus_125s() {
        let ht = HumanTime::from_seconds(-125);
        let english = format!("{}", ht);
        assert_eq!("2 minutes ago", english);
    }

    #[test]
    fn plus_31m() {
        let ht = HumanTime::from_minutes(31);
        let english = format!("{}", ht);
        assert_eq!("in 31 minutes", english);
    }

    #[test]
    fn minus_31m() {
        let ht = HumanTime::from_minutes(-31);
        let english = format!("{}", ht);
        assert_eq!("31 minutes ago", english);
    }

    #[test]
    fn plus_45m() {
        let ht = HumanTime::from_minutes(45);
        let english = format!("{}", ht);
        assert_eq!("in 45 minutes", english);
    }

    #[test]
    fn minus_45m() {
        let ht = HumanTime::from_minutes(-45);
        let english = format!("{}", ht);
        assert_eq!("45 minutes ago", english);
    }

    #[test]
    fn plus_46m() {
        let ht = HumanTime::from_minutes(46);
        let english = format!("{}", ht);
        assert_eq!("in an hour", english);
    }

    #[test]
    fn minus_46m() {
        let ht = HumanTime::from_minutes(-46);
        let english = format!("{}", ht);
        assert_eq!("an hour ago", english);
    }

    #[test]
    fn plus_1h() {
        let ht = HumanTime::from_hours(1);
        let english = format!("{}", ht);
        assert_eq!("in an hour", english);
    }

    #[test]
    fn minus_1h() {
        let ht = HumanTime::from_hours(-1);
        let english = format!("{}", ht);
        assert_eq!("an hour ago", english);
    }

    #[test]
    fn plus_12h() {
        let ht = HumanTime::from_hours(12);
        let english = format!("{}", ht);
        assert_eq!("in 12 hours", english);
    }

    #[test]
    fn minus_12h() {
        let ht = HumanTime::from_hours(-12);
        let english = format!("{}", ht);
        assert_eq!("12 hours ago", english);
    }

    #[test]
    fn plus_23h() {
        let ht = HumanTime::from_hours(23);
        let english = format!("{}", ht);
        assert_eq!("in a day", english);
    }

    #[test]
    fn minus_23h() {
        let ht = HumanTime::from_hours(-23);
        let english = format!("{}", ht);
        assert_eq!("a day ago", english);
    }

    #[test]
    fn plus_26h() {
        let ht = HumanTime::from_hours(26);
        let english = format!("{}", ht);
        assert_eq!("in a day", english);
    }

    #[test]
    fn minus_26h() {
        let ht = HumanTime::from_hours(-26);
        let english = format!("{}", ht);
        assert_eq!("a day ago", english);
    }

    #[test]
    fn plus_1d() {
        let ht = HumanTime::from_days(1);
        let english = format!("{}", ht);
        assert_eq!("in a day", english);
    }

    #[test]
    fn minus_1d() {
        let ht = HumanTime::from_days(-1);
        let english = format!("{}", ht);
        assert_eq!("a day ago", english);
    }

    #[test]
    fn plus_2d() {
        let ht = HumanTime::from_days(2);
        let english = format!("{}", ht);
        assert_eq!("in 2 days", english);
    }

    #[test]
    fn minus_2d() {
        let ht = HumanTime::from_days(-2);
        let english = format!("{}", ht);
        assert_eq!("2 days ago", english);
    }

    #[test]
    fn plus_6d_13h() {
        let ht = HumanTime::from(
            Duration::from_secs(6 * 24 * 60 * 60) + Duration::from_secs(13 * 60 * 60),
        );
        let english = format!("{}", ht);
        assert_eq!("in a week", english);
    }

    // #[test]
    // fn minus_6d_13h() {
    //     let ht = HumanTime::from(Duration::days(-6) + Duration::hours(-13));
    //     let english = format!("{}", ht);
    //     assert_eq!("a week ago", english);
    // }

    #[test]
    fn plus_7d() {
        let ht = HumanTime::from_days(7);
        let english = format!("{}", ht);
        assert_eq!("in a week", english);
    }

    #[test]
    fn minus_7d() {
        let ht = HumanTime::from_days(-7);
        let english = format!("{}", ht);
        assert_eq!("a week ago", english);
    }

    #[test]
    fn plus_10d() {
        let ht = HumanTime::from_days(10);
        let english = format!("{}", ht);
        assert_eq!("in a week", english);
    }

    #[test]
    fn minus_10d() {
        let ht = HumanTime::from_days(-10);
        let english = format!("{}", ht);
        assert_eq!("a week ago", english);
    }

    #[test]
    fn plus_11d() {
        let ht = HumanTime::from_days(11);
        let english = format!("{}", ht);
        assert_eq!("in 2 weeks", english);
    }

    #[test]
    fn minus_11d() {
        let ht = HumanTime::from_days(-11);
        let english = format!("{}", ht);
        assert_eq!("2 weeks ago", english);
    }

    #[test]
    fn plus_4w() {
        let ht = HumanTime::from_weeks(4);
        let english = format!("{}", ht);
        assert_eq!("in 4 weeks", english);
    }

    #[test]
    fn minus_4w() {
        let ht = HumanTime::from_weeks(-4);
        let english = format!("{}", ht);
        assert_eq!("4 weeks ago", english);
    }

    #[test]
    fn plus_30d() {
        let ht = HumanTime::from_days(30);
        let english = format!("{}", ht);
        assert_eq!("in a month", english);
    }

    #[test]
    fn minus_30d() {
        let ht = HumanTime::from_days(-30);
        let english = format!("{}", ht);
        assert_eq!("a month ago", english);
    }

    #[test]
    fn plus_45d() {
        let ht = HumanTime::from_days(45);
        let english = format!("{}", ht);
        assert_eq!("in a month", english);
    }

    #[test]
    fn minus_45d() {
        let ht = HumanTime::from_days(-45);
        let english = format!("{}", ht);
        assert_eq!("a month ago", english);
    }

    #[test]
    fn plus_46d() {
        let ht = HumanTime::from_days(46);
        let english = format!("{}", ht);
        assert_eq!("in 2 months", english);
    }

    #[test]
    fn minus_46d() {
        let ht = HumanTime::from_days(-46);
        let english = format!("{}", ht);
        assert_eq!("2 months ago", english);
    }

    #[test]
    fn plus_24w() {
        let ht = HumanTime::from_weeks(24);
        let english = format!("{}", ht);
        assert_eq!("in 5 months", english);
    }

    #[test]
    fn minus_24w() {
        let ht = HumanTime::from_weeks(-24);
        let english = format!("{}", ht);
        assert_eq!("5 months ago", english);
    }

    #[test]
    fn plus_26w() {
        let ht = HumanTime::from_weeks(26);
        let english = format!("{}", ht);
        assert_eq!("in 6 months", english);
    }

    #[test]
    fn minus_26w() {
        let ht = HumanTime::from_weeks(-26);
        let english = format!("{}", ht);
        assert_eq!("6 months ago", english);
    }

    #[test]
    fn plus_50w() {
        let ht = HumanTime::from_weeks(50);
        let english = format!("{}", ht);
        assert_eq!("in a year", english);
    }

    #[test]
    fn minus_50w() {
        let ht = HumanTime::from_weeks(-50);
        let english = format!("{}", ht);
        assert_eq!("a year ago", english);
    }

    #[test]
    fn plus_100w() {
        let ht = HumanTime::from_weeks(100);
        let english = format!("{}", ht);
        assert_eq!("in 2 years", english);
    }

    #[test]
    fn minus_100w() {
        let ht = HumanTime::from_weeks(-100);
        let english = format!("{}", ht);
        assert_eq!("2 years ago", english);
    }

    #[test]
    fn plus_120w() {
        let ht = HumanTime::from_weeks(120);
        let english = format!("{}", ht);
        assert_eq!("in 2 years", english);
    }

    #[test]
    fn minus_120w() {
        let ht = HumanTime::from_weeks(-120);
        let english = format!("{}", ht);
        assert_eq!("2 years ago", english);
    }

    #[test]
    fn plus_200w() {
        let ht = HumanTime::from_weeks(200);
        let english = format!("{}", ht);
        assert_eq!("in 3 years", english);
    }

    #[test]
    fn minus_200w() {
        let ht = HumanTime::from_weeks(-200);
        let english = format!("{}", ht);
        assert_eq!("3 years ago", english);
    }
}