interval_set/
lib.rs

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