actix-web/actix-web-codegen/tests/trybuild/route-missing-method-fail.rs

use actix_web_codegen::*;

#[route("/")]
async fn index() -> String {
    "Hello World!".to_owned()
}

#[actix_web::main]
async fn main() {
    use actix_web::{App, test};
    
    let srv = test::start(|| App::new().service(index));

    let request = srv.get("/");
    let response = request.send().await.unwrap();
    assert!(response.status().is_success());
}