codex-proxy-rs/backend/tests/support/assertions.rs

pub(crate) fn assert_substrings_appear_in_order(haystack: &str, needles: &[&str]) {
    let mut cursor = 0;
    for needle in needles {
        let Some(offset) = haystack[cursor..].find(needle) else {
            panic!("expected substring {needle:?} after byte {cursor} in:\n{haystack}");
        };
        cursor += offset + needle.len();
    }
}