lib.rs

   1 /*
   2 fn f(a: i32, b: i32) -> i32 {
   3     a + 2 * b
   4 }
   5
   6 mod tests {
   7     use super::*;
   8
   9     #[test]
  10     fn it_works() {
  11         assert_eq!(2 + 2, 4);
  12     }
  13 }
  14 */