dinero 0.0.11

Dinero lets you express monetary values. You can perform mutations, conversions, comparisons, format them extensively, and overall make money manipulation in your application easier and safer.
Documentation 
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use crate::Dinero;

/// Check whether a Dinero has minor currency units.
pub fn has_sub_units(d: &Dinero) -> bool {
    let base = i128::from(d.currency.base);
    d.amount % base.pow(d.scale) != 0
}

#[cfg(test)]
#[cfg(not(tarpaulin_include))]
mod tests {

    use super::*;
    use crate::currencies::USD;

    #[test]
    fn test_has_sub_units() {
        assert!(has_sub_units(&Dinero::new(1150, USD, None)));
        assert!(!has_sub_units(&Dinero::new(1100, USD, None)));
    }

    #[test]
    fn test_has_sub_units_scale() {
        assert!(has_sub_units(&Dinero::new(1100, USD, Some(3))));
    }
}