You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: tests.rs
    path of file: ./repos/Rust-Full-Stack/yew/rust_blog/server/src
    
    the code of the file until where you have to start completion: use crate::rocket;
use crate::serde_json;
use crate::http_model::youtube_video::Video;

use rocket::local::Client;
use rocket::http::{
    Status, 
    ContentType, 
    Header,
    hyper::heade
    
fn invalid_youtube_id() {
    // https://api.rocket.rs/v0.4/rocket/local/struct.Client.html
    let client = Client::new(rocket()).unwrap();

    let invalid_youtube_id = "invalid_youtube_id";

    let request_url = format!(
        "/video_search_by_id/{}",
        invalid_youtube_id,
    );

    let mut res = client.get(&request_url).header(ContentType::JSON).dispatch(); // return Video { items: Some([]) }

    // https://api.rocket.rs/v0.4/rocket/http/struct.Status.html
    assert_eq!(res.status(), Status::Ok);

    let body = res.body_string().unwrap();

    let video: Video = serde_json::from_str(&body).unwrap();

    assert_eq!(video.items.unwrap(), [].to_vec()); // should include PartialEq, Clone for http_model::youtube_video::Video 
}