use crate::morethantext::error::MTTError;
use std::fmt;

pub struct StaticString {
    data: String,
}

impl StaticString {
    pub fn new<S>(name: S) -> Result<Self, MTTError>
    where
        S: Into<String>,
    {
        Ok(Self { data: name.into() })
    }
}

impl fmt::Display for StaticString {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        write!(f, "{}", &self.data)
    }
}

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

    #[test]
    fn new_accepts_str() {
        let data = "some data";
        let field = StaticString::new(data).unwrap();
        assert!(
            field.to_string() == data,
            "\n\nGot:  {}\nWant: {}",
            field.to_string(),
            data
        );
    }

    #[test]
    fn new_accepts_string() {
        let data = "actual string";
        let field = StaticString::new(data.to_string()).unwrap();
        assert!(
            field.to_string() == data,
            "\n\nGot:  {}\nWant: {}",
            field.to_string(),
            data
        );
    }
}