rust 测试如何打印 println 输出结果

小弧光的博客 / 2023-05-29 / 原文

cargo test -- --nocapture
or
rustc --test main.rs; ./main
or (my favorite)
cargo watch “test -- --nocapture”

https://medium.com/@ericdreichert/how-to-print-during-rust-tests-619bdc7ccebc