assert rust

To assert in Rust, you can use the assert! macro. This macro is used to check if a given condition is true and will panic if the condition is false. Here's an example:

fn main() {
    let x = 5;
    let y = 10;

    assert!(x < y, "x is not less than y");
}

In this example, the assert! macro is used to check if x is less than y. If the condition is false, the program will panic and display the provided error message.

You can also use the assert_eq! macro to check if two values are equal. Here's an example:

fn main() {
    let x = 5;
    let y = 10;

    assert_eq!(x + y, 15, "x + y is not equal to 15");
}

In this example, the assert_eq! macro is used to check if the sum of x and y is equal to 15. If the condition is false, the program will panic and display the provided error message.

These assertion macros are useful for writing tests and ensuring that your code behaves as expected.