Rust study : c like enum

c_like_enum.rs

/*
The rust by example ko https://hanbum.gitbooks.io/rustbyexample/content/custom_types/enum/c_like.html
compiled on https://play.rust-lang.org/
result:
running 1 test
test tests::number ... ok

test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s


running 0 tests

test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s

*/

// 사용하지 않는 코드 때문에 생성되는 경고를 숨기는 속성
#![allow(dead_code)]

enum Number {
    Zero,
    One,
    Two,
}

enum Color {
    Red = 0xff0000,
    Green = 0x00ff00,
    Blue = 0x0000ff,
}

#[cfg(test)]
mod tests
{
    use super::*;
    
    #[test]
    fn number() {
        assert_eq!(Number::Zero as i32, 0);
        assert_eq!(Number::One as i32, 1);
        assert_eq!(Number::Two as i32, 2);
    }
    
    fn color() {
        assert_eq!(Color::Red as i32, 0xff0000);
        assert_eq!(Color::Green as i32, 0xff00);
        assert_eq!(Color::Blue as i32, 0xff);
    }
}