rustlings/solutions/15_traits/traits3.rs

37 lines
794 B
Rust

trait Licensed {
fn licensing_info(&self) -> String {
"Default license".to_string()
}
}
struct SomeSoftware {
version_number: i32,
}
struct OtherSoftware {
version_number: String,
}
impl Licensed for SomeSoftware {}
impl Licensed for OtherSoftware {}
fn main() {
// You can optionally experiment here.
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn is_licensing_info_the_same() {
let licensing_info = "Default license";
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);
}
}