How to handle errors in tests

Handle errors in tests by using unwrap() on Result types to panic immediately on failure, or expect() to provide a custom error message. This ensures your test fails fast if the operation does not succeed.

#[test]
fn test_example() {
    let result = Some(42);
    // Panics if result is None, failing the test
    let value = result.expect("Expected a value, but got None");
    assert_eq!(value, 42);
}

In tests, you want the program to stop immediately if something goes wrong so you know exactly what failed. Instead of writing complex code to handle errors gracefully, you tell Rust to crash the test if an error occurs. This is like a safety switch that trips the moment a wire gets hot, alerting you instantly.