use std::convert::Infallible; use askama::Template; use hyper::body::to_bytes; use hyper::http::response::Builder; use hyper::{Body, Client, Request, Response, Server}; use routerify::ext::RequestExt; use routerify::{Router, RouterService}; #[derive(Template)] #[template(path = "hello.html")] struct HelloTemplate<'a, N> where N: std::fmt::Display, { name: &'a N, } async fn hello_handler(req: Request) -> Result, Infallible> { let name = req.param("name").unwrap(); let template = &HelloTemplate { name: &name }; Ok(template.into()) } async fn try_body_handler(req: Request) -> Result, Infallible> { let name = req.param("name").unwrap(); let template = &HelloTemplate { name: &name }; Ok(Builder::new().body(template.try_into().unwrap()).unwrap()) } fn router() -> Router { Router::builder() .get("/hello/:name", hello_handler) .get("/try_body/:name", try_body_handler) .build() .unwrap() } #[tokio::test] async fn test_hyper() { let addr = ([127, 0, 0, 1], 0).into(); let service = RouterService::new(router()).expect("Could not create service"); let server = Server::bind(&addr).serve(service); let local_addr = server.local_addr(); let (tx, mut rx) = tokio::sync::mpsc::unbounded_channel::<()>(); let serve = async move { let server = server.with_graceful_shutdown(async { while rx.recv().await.is_some() {} }); server.await.expect("Could not serve"); }; let hello_tx = tx.clone(); let hello_query = async move { let uri = format!("http://{local_addr}/hello/world") .parse() .expect("Could not format URI"); let client = Client::new(); let res = client.get(uri).await.expect("Could not query client"); assert_eq!(res.status(), hyper::StatusCode::OK); let content_type = res .headers() .get("content-type") .expect("Response did not contain content-type header") .to_str() .expect("Content-type was not a UTF-8 string"); assert_eq!(content_type, mime::TEXT_HTML_UTF_8.to_string()); let body = to_bytes(res).await.expect("No body returned"); let body = std::str::from_utf8(&body).expect("Body was not UTF-8"); assert_eq!(body, "Hello, world!"); hello_tx.send(()).unwrap(); }; let try_body_query = async move { let uri = format!("http://{local_addr}/try_body/world") .parse() .expect("Could not format URI"); let client = Client::new(); let res = client.get(uri).await.expect("Could not query client"); assert_eq!(res.status(), hyper::StatusCode::OK); let body = to_bytes(res).await.expect("No body returned"); let body = std::str::from_utf8(&body).expect("Body was not UTF-8"); assert_eq!(body, "Hello, world!"); tx.send(()).unwrap(); }; tokio::join!(serve, try_body_query, hello_query); }