rustlings/exercises/traits/traits3.rs

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// traits3.rs
//
// Your task is to implement the Licensed trait for
// both structures and have them return the same
// information without writing the same function twice.
//
// Consider what you can add to the Licensed trait.
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// Execute `rustlings hint traits3` or use the `hint` watch subcommand for a hint.
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// I AM NOT DONE
pub trait Licensed {
fn licensing_info(&self) -> String;
}
struct SomeSoftware {
version_number: i32,
}
struct OtherSoftware {
version_number: String,
}
impl Licensed for SomeSoftware {} // Don't edit this line
impl Licensed for OtherSoftware {} // Don't edit this line
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn is_licensing_info_the_same() {
let licensing_info = String::from("Some information");
let some_software = SomeSoftware { version_number: 1 };
let other_software = OtherSoftware {
version_number: "v2.0.0".to_string(),
};
assert_eq!(some_software.licensing_info(), licensing_info);
assert_eq!(other_software.licensing_info(), licensing_info);
}
}