patriktest2/
lib.rs

1pub fn add(n1: u32, n2: u32) -> u32 {
2    n1 + n2
3}
4
5pub fn substract(n1: u32, n2: u32) -> u32 {
6    n1 - n2
7}
8
9#[cfg(test)]
10mod tests {
11    use crate::{add, substract};
12
13    #[test]
14    fn add_works() {
15        assert_eq!(add(1, 2), 3);
16    }
17
18    #[test]
19    fn substract_works() {
20        assert_eq!(substract(3, 2), 1);
21    }
22}