ftracker_identifiers/country/
fmt.rs

1//! `Display` and `Debug` for [`CountryCode`].
2//!
3//! A country code has no punctuated form. Its canonical rendering is the compact two letter string,
4//! which [`CountryCode::as_str`](CountryCode::as_str) already returns.
5
6use crate::country::CountryCode;
7use core::fmt;
8
9impl fmt::Display for CountryCode {
10    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
11        f.write_str(self.as_str())
12    }
13}
14
15impl fmt::Debug for CountryCode {
16    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
17        f.debug_tuple("CountryCode").field(&self.as_str()).finish()
18    }
19}
20
21#[cfg(test)]
22mod tests {
23    use crate::country::CountryCode;
24    use alloc::format;
25    use alloc::string::ToString;
26
27    #[test]
28    fn display_is_the_canonical_string() {
29        let code = CountryCode::parse("US").unwrap();
30        assert_eq!(code.to_string(), "US");
31    }
32
33    #[test]
34    fn debug_is_readable() {
35        let code = CountryCode::parse("US").unwrap();
36        assert_eq!(format!("{code:?}"), "CountryCode(\"US\")");
37    }
38}
ftracker_identifiers/country/fmt.rs

ftracker_identifiers/country/
fmt.rs
