unit test Rust

unit test Rust file code integration test /tests /src

unit test

fn add(a:i32, b:i32) -> i32 {a+b}fn main() {    println!("{}",add(1,2));}#[cfg(test)]mod tests {    #[test]    fn add_correct() {        assert_eq!(3, super::add(1,2));    }}

function add unit test code compile unit test

#[cfg(test)] mod tests compiler unit test compile

module tests function unit test #[test]

function super:: use super::*;

#[cfg(test)]mod tests {    use super::*;    #[test]    fn add_correct() {        assert_eq!(3, add(1,2));    }}

cargo test

unit test Rust