strum/strum_tests/tests/display.rs

extern crate strum;
#[macro_use]
extern crate strum_macros;

#[derive(Debug,Eq,PartialEq, EnumString, Display)]
enum Color {
    #[strum(to_string="RedRed")]
    Red,
    #[strum(serialize="b", to_string="blue")]
    Blue { hue: usize },
    #[strum(serialize="y", serialize="yellow")]
    Yellow,
    #[strum(default="true")]
    Green(String),
}

#[test]
fn to_blue_string() {
    assert_eq!(String::from("blue"), format!("{}", Color::Blue { hue: 0 }));
}

#[test]
fn to_yellow_string() {
    assert_eq!(String::from("yellow"), format!("{}", Color::Yellow));
}

#[test]
fn to_red_string() {
    assert_eq!(String::from("RedRed"), format!("{}", Color::Red));
}