temp-converter 2.0.9

Simple terminal temperature unit converter between Celsius, Fahrenheit and Kelvin.
Documentation 
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use std::fmt::Display;

#[derive(Debug, PartialEq)]
pub enum Value {
    F32(f32),
    F64(f64),
}

impl Display for Value {
    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
        match self {
            Value::F32(val) => write!(f, "{val}"),
            Value::F64(val) => write!(f, "{val}"),
        }
    }
}

impl From<f32> for Value {
    fn from(value: f32) -> Self {
        Self::F32(value)
    }
}

impl From<f64> for Value {
    fn from(value: f64) -> Self {
        Self::F64(value)
    }
}

impl Value {
    pub fn parse(val: &str, double: bool) -> color_eyre::Result<Self> {
        if double {
            let f64: f64 = val.parse()?;
            Ok(f64.into())
        } else {
            let f32: f32 = val.parse()?;
            Ok(f32.into())
        }
    }
}

#[cfg(test)]
mod tests {
    use super::*;
    use claim::{assert_err, assert_ok_eq};
    use rstest::rstest;

    #[rstest]
    #[case("10.0", 10.0)]
    #[case("69.420", 69.42)]
    #[case("420.69", 420.69)]
    #[case("147258", 147258.0)]
    #[case("963852", 963852.0)]
    fn parse_returns_ok_on_valid_input(#[case] val: &str, #[case] expected: f32) {
        assert_ok_eq!(Value::parse(val, false), Value::F32(expected));
    }

    #[rstest]
    #[case("1O.O")]
    #[case("69.42O")]
    #[case("42O.69")]
    #[case("I47258")]
    #[case("96E852X")]
    fn parse_returns_err_on_invalid_input(#[case] val: &str) {
        let _ = assert_err!(Value::parse(val, true));
    }
}