rust study : unittest

unittest.rs

// The rust programming ko https://rinthel.github.io/rust-lang-book-ko/ch11-01-writing-tests.html
// compiled on https://play.rust-lang.org/
/* result

running 2 tests
test tests::exploration ... ok
test tests::another ... FAILED

failures:

---- tests::another stdout ----
thread 'tests::another' panicked at 'Make this test fail!', src/lib.rs:14:9
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace


failures:
    tests::another

test result: FAILED. 1 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
*/

#[cfg(test)]
mod tests {
    #[test]
    fn exploration() {
        assert_eq!(2 + 2, 4);
    }
    #[test]
    fn another() {
        panic!("Make this test fail!");
    }
}