1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
fn main() { println!("Hello, world!"); } pub fn add_one(x: i32) -> i32 { x + 1 } #[cfg(test)] mod tests { use super::*; #[test] fn test_add() { assert_eq!(add_one(1), 2); assert_eq!(add_one(-1), 0); } }