Testing in RUST

 Testing in RUST

Rust has excellent support for testing with built-in test harnesses and assertions. Here's an example of a simple test function:

rust

fn add(a: i32, b: i32) -> i32 {

    a + b

}

#[test]

fn test_add() {

    assert_eq!(add(2, 2), 4);

    assert_eq!(add(0, 0), 0);

    assert_eq!(add(-1, 1), 0);

}

You can run this test using the cargo test command.