Function write_vectors_file

nodedb/src/data/vamana_fetcher.rs:307–315

Write a minimal Vamana vectors block (no adjacency, no header) to a temp file and verify that `IoUringNodeFetcher` reads it correctly.

(path: &std::path::Path, vectors: &[Vec<f32>])

    /// Write a minimal Vamana vectors block (no adjacency, no header) to a
    /// temp file and verify that `IoUringNodeFetcher` reads it correctly.
    fn write_vectors_file(path: &std::path::Path, vectors: &[Vec<f32>]) {
        let mut f = std::fs::File::create(path).unwrap();
        for vec in vectors {
            for &x in vec {
                f.write_all(&x.to_le_bytes()).unwrap();
            }
        }
        f.sync_all().unwrap();
    }

    #[test]
    fn fetch_single_node_no_prefetch() {