1pub fn add(left: usize, right: usize) -> usize {
2 left + right
3}
4
5pub fn greet() {
6 println!("Welcome to Rustiverse!")
7}
8
9#[cfg(test)]
10mod tests {
11 use super::*;
12
13 #[test]
14 fn it_works() {
15 let result = add(2, 2);
16 assert_eq!(result, 4);
17 }
18}