1extern crate log;
2
3pub fn add(left: usize, right: usize) -> usize {
4 log::info!("add {}, {}", left, right);
5 left + right
6}
7
8#[cfg(test)]
9mod tests {
10 extern crate dotenv;
11 extern crate env_logger;
12
13 use super::*;
14 use std::env;
15
16 fn init() {
17 dotenv::dotenv().ok();
18
19 let dev = env::var("RUST_ENV")
20 .unwrap_or("dev".to_string())
21 .to_lowercase()
22 .matches("dev")
23 .count()
24 > 0;
25
26 let _ = env_logger::builder().is_test(dev).try_init();
27 }
28
29 #[test]
30 fn it_works() {
31 tests::init();
32
33 let result = add(2, 2);
34 assert_eq!(result, 4);
35 }
36}