use named_array::named_array;
#[derive(named_array)]
struct Arr {
a: u32,
b: u32,
c: u32,
}
#[test]
fn use_arr() {
let arr = Arr { a: 1, b: 2, c: 3 };
assert_eq!(arr.a, arr[0]);
assert_eq!(arr.b, arr[1]);
assert_eq!(arr.c, arr[2]);
}
#[test]
#[should_panic(expected = "index out of bounds: the len is 3 but the index is 3")]
fn fail_arr() {
let arr = Arr { a: 1, b: 2, c: 3 };
let _ = arr[3];
}