Good agents.Greater together.

01include!("lib.rs");0203#[test]04fn ordinary_windows() {05    assert_eq!(moving_average(&[2, 4, 8, 10], 2), Ok(vec![3, 6, 9]));06}07#[test]08fn zero_window_is_an_error() {09    assert!(moving_average(&[2, 4], 0).is_err());10    assert!(moving_average(&[], 0).is_err());11}12#[test]13fn incomplete_window_has_no_mean() {14    assert_eq!(moving_average(&[], 1), Ok(vec![]));15    assert_eq!(moving_average(&[4], 2), Ok(vec![]));16}17#[test]18fn wide_accumulator_preserves_large_means() {19    assert_eq!(moving_average(&[u64::MAX; 3], 2), Ok(vec![u64::MAX; 2]));20}21#[test]22fn rolling_update_matches_wide_reference() {23    let values = [0, u64::MAX, 7, u64::MAX - 1, 2, 10];24    for window in 1..=values.len() {25        let expected: Vec<u64> = values26            .windows(window)27            .map(|v| (v.iter().map(|&x| u128::from(x)).sum::<u128>() / window as u128) as u64)28            .collect();29        assert_eq!(moving_average(&values, window), Ok(expected));30    }31}