rustlings/exercises/07_structs/structs1.rs

// structs1.rs
//
// Address all the TODOs to make the tests pass!
//
// Execute `rustlings hint structs1` or use the `hint` watch subcommand for a
// hint.

struct ColorClassicStruct<'a> {
    name: &'a str,
    hex: &'a str,
}

struct ColorTupleStruct<'a> (&'a str, &'a str);

#[derive(Debug)]
struct UnitLikeStruct;

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

    #[test]
    fn classic_c_structs() {
        let green = ColorClassicStruct {name: "green", hex: "#00FF00"};

        assert_eq!(green.red, 0);
        assert_eq!(green.green, 255);
        assert_eq!(green.blue, 0);
    }

    #[test]
    fn tuple_structs() {
        let green = ("green", "#00FF00");

        assert_eq!(green.0, 0);
        assert_eq!(green.1, 255);
        assert_eq!(green.2, 0);
    }

    #[test]
    fn unit_structs() {
        let unit_struct = UnitStruct;
        let message = format!("{:?}s are fun!", unit_struct);

        assert_eq!(message, "UnitLikeStructs are fun!");
    }
}