#[cfg(test)]
mod tests {
    use json::array;
    use df_helper::datetime::timer::Timer;
    use df_helper::maths::{ma, maths};

    #[test]
    fn ma() {
        let data = array![670, 680, 690,680,700,720,730,740,740,760,780,790];
        let data = ma::ma(data, 5.0, false);

        let data = array![423,358	,434,445,527,429,502,480,384,427,446];
        let data = ma::ma(data, 3.0, true);
        println!("{:#}", data);
        let data = array![423,358	,434,445,527,429,502,480,384,427,446];
        let data = ma::ma(data, 5.0, true);
        println!("{:#}", data);

        let data = array![35.0,34.0,37.0,36.0,35.0,38.0];
        let data = ma::ma(data, 5.0, true);
        println!("{:#}", data);
    }

    #[test]
    fn expmema() {
        // let data = array![7297, 7441, 8666,10002,16320,17562];
        // let data = array![7297, 7441, 8666,10002];
        // let data = array![670, 680, 690,680,700,720,730,740,740,760,780,790];
        // let data = array![8,2,4,4,6,6,3,7,1,3,8,5];
        // let data = ma::expmema(data, 1.0);
        // println!("{:#}", data);

        let data = array![35,34,37,36,35,38,37,37,39,38,37];
        let data = ma::expmema(data, 0.9);
        println!("{:#}", data);

        // let data = array![35,34,37,36,35,38,37,37,39,38,37];
        let data = ma::xexpmema(data, 0.9);
        println!("{:#}", data);
    }

    #[test]
    fn ema() {
        let mut timer = Timer::start("ms");
        let data = array![7297, 7441, 8666,10002,16320,17562];
        // let data = array![7297, 7441, 8666,10002];
        // let data = array![670, 680, 690,680,700,720,730,740,740,760,780,790];
        let data = array![8,2,4,4,6,6,3,7,1,3,8,5];
        let data = ma::ema(data, 3.0);
        timer.end(true);
        println!("{:#}", data);
    }

    #[test]
    fn wma() {
        // let data = array![7297, 7441, 8666,10002,16320,17562];
        // // let data = array![7297, 7441, 8666,10002];
        // // let data = array![670, 680, 690,680,700,720,730,740,740,760,780,790];
        // let data = array![38,45,35,49,70,43,46,55,45,68,64];
        // let data = ma::wma(data, 3.0, array![1.0, 2.0, 3.0], false);
        // println!("{:#}", data);

        let data = array![35,34,37,36,35];
        let data = ma::wma(data, 5, true);
        println!("{:#}", data);
    }

    #[test]
    fn distance() {
        let data = maths::distance(30.658378, 104.065858, 30.572084, 104.064839, "m");
        println!("{}", data);
    }

    #[test]
    fn distances() {
        let data = 4;
        let list = 5;
        println!("{:?}", data.max(list.clone()));
    }
}