#[path="support/index_image.rs"] mod index_image;
fn build_index()->Vec<index_image::Node> {
    use index_image::Node;
    [ ("cat",1,Some(1),Some(2)), ("apple",1,Some(3),Some(4)),
      ("fox",4,Some(5),Some(6)), ("ant",1,None,None),
      ("bat",1,None,Some(7)), ("dog",1,None,None),
      ("hare",1,None,Some(8)), ("brown",1,None,None), ("quick",1,None,None) ]
    .into_iter().map(|(word,count,left,right)|Node {word:word.as_bytes().to_vec(),count,left,right}).collect()
}
use index_image::{encode_nodes,decode_nodes};
fn main() {
let mut image=encode_nodes(&build_index()).unwrap();
let at = image.len() - 3;
image[at] = 200; // corrupt an index in this Rust codec's image
let decoded = decode_nodes(&image);
let bok = decoded.is_ok();
let bad = decoded.unwrap_or_default();
println!("accepted: {bok}, nodes {}", bad.len());

assert!(!bok);assert!(bad.is_empty());
}