dag/
lib.rs

1
2pub fn add(left: u64, right: u64) -> u64 {
3    left + right
4}
5
6#[cfg(test)]
7mod tests {
8    use super::*;
9
10    #[test]
11    fn it_works() {
12        let result = add(2, 2);
13        assert_eq!(result, 4);
14    }
15}