feat: Add traits3.rs exercise

This commit is contained in:
Sam White 2022-02-25 16:40:38 +00:00 committed by mokou
parent 9b66b2a0e9
commit f43c6d7877
2 changed files with 52 additions and 0 deletions

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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.
// 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);
}
}

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@ -704,6 +704,18 @@ what the result should look like!
Vectors provide suitable methods for adding an element at the end. See
the documentation at: https://doc.rust-lang.org/std/vec/struct.Vec.html"""
[[exercises]]
name = "traits3"
path = "exercises/traits/traits3.rs"
mode = "test"
hint = """
Traits can have a default implementation for functions. Structs that implement
the trait can then use the default version of these functions if they choose not
implement the function themselves.
See the documentation at: https://doc.rust-lang.org/book/ch10-02-traits.html#default-implementations
"""
# QUIZ 3
[[exercises]]