hyper-reverse-proxy/tests/test_http.rs

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use tokio::sync::oneshot::Sender;
use tokio::task::JoinHandle;
use hyper::service::{make_service_fn, service_fn};
use hyper::server::conn::AddrStream;
use std::convert::Infallible;
use hyper::{Uri, Client, Request, Body, Server, Response, StatusCode};
use tokiotest_httpserver::{HttpTestContext, take_port};
use test_context::AsyncTestContext;
use test_context::test_context;
use std::net::{IpAddr, SocketAddr};
use tokiotest_httpserver::handler::HandlerBuilder;
struct ProxyTestContext {
sender: Sender<()>,
proxy_handler: JoinHandle<Result<(), hyper::Error>>,
http_back: HttpTestContext,
port: u16
}
#[test_context(ProxyTestContext)]
#[tokio::test]
async fn test_get_error_500(ctx: &mut ProxyTestContext) {
let resp = Client::new().get(ctx.uri("/500")).await.unwrap();
assert_eq!(500, resp.status());
}
#[test_context(ProxyTestContext)]
#[tokio::test]
async fn test_get(ctx: &mut ProxyTestContext) {
ctx.http_back.add(HandlerBuilder::new("/foo").status_code(StatusCode::OK).build());
let resp = Client::new().get(ctx.uri("/foo")).await.unwrap();
assert_eq!(200, resp.status());
}
async fn handle(client_ip: IpAddr, req: Request<Body>, backend_port: u16) -> Result<Response<Body>, Infallible> {
match hyper_reverse_proxy::call(client_ip,
format!("http://127.0.0.1:{}", backend_port).as_str(),
req).await {
Ok(response) => {Ok(response)}
Err(_) => {Ok(Response::builder()
.status(502)
.body(Body::empty())
.unwrap())}
}
}
#[async_trait::async_trait]
impl AsyncTestContext for ProxyTestContext {
async fn setup() -> ProxyTestContext {
let http_back: HttpTestContext = AsyncTestContext::setup().await;
let (sender, receiver) = tokio::sync::oneshot::channel::<()>();
let bp_to_move = http_back.port;
let make_svc = make_service_fn(move |conn: &AddrStream| {
let remote_addr = conn.remote_addr().ip();
let back_port = bp_to_move;
async move {
Ok::<_, Infallible>(service_fn(move |req| handle(remote_addr, req, back_port)))
}
});
let port = take_port();
let addr = SocketAddr::new("127.0.0.1".parse().unwrap(), port);
let server = Server::bind(&addr).serve(make_svc).with_graceful_shutdown(async { receiver.await.ok(); });
let proxy_handler = tokio::spawn(server);
ProxyTestContext {
sender,
proxy_handler,
http_back,
port
}
}
async fn teardown(self) {
let _ = AsyncTestContext::teardown(self.http_back);
let _ = self.sender.send(()).unwrap();
let _ = tokio::join!(self.proxy_handler);
}
}
impl ProxyTestContext {
pub fn uri(&self, path: &str) -> Uri {
format!("http://{}:{}{}", "localhost", self.port, path).parse::<Uri>().unwrap()
}
}