rustlings

solving rustlings ft. dracuxan
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traits2.rs (615B)

      1 trait AppendBar {
      2     fn append_bar(self) -> Self;
      3 }
      4 
      5 // TODO: Implement the trait `AppendBar` for a vector of strings.
      6 // `append_bar` should push the string "Bar" into the vector.
      7 impl AppendBar for Vec<String> {
      8     fn append_bar(mut self) -> Self {
      9         self.push("Bar".into());
     10         self
     11     }
     12 }
     13 
     14 fn main() {
     15     // You can optionally experiment here.
     16 }
     17 
     18 #[cfg(test)]
     19 mod tests {
     20     use super::*;
     21 
     22     #[test]
     23     fn is_vec_pop_eq_bar() {
     24         let mut foo = vec![String::from("Foo")].append_bar();
     25         assert_eq!(foo.pop().unwrap(), "Bar");
     26         assert_eq!(foo.pop().unwrap(), "Foo");
     27     }
     28 }