File: standard_assertion.rs

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#[derive(Debug, PartialEq)]
struct Foo {
    lorem: &'static str,
    ipsum: u32,
    dolor: Result<String, String>,
}

fn compare() {
    let x = Some(Foo {
        lorem: "Hello World!",
        ipsum: 42,
        dolor: Ok("hey".to_string()),
    });
    let y = Some(Foo {
        lorem: "Hello Wrold!",
        ipsum: 42,
        dolor: Ok("hey ho!".to_string()),
    });

    assert_eq!(x, y);
}

fn main() {
    let result = std::panic::catch_unwind(compare);
    assert!(result.is_err(), "example did not panic");
}