use anyhow::Result; use futures::future; use hyper::header::USER_AGENT; use hyper::server::conn::Http; use hyper::service::service_fn; use hyper::{Body, Request, Response}; use tokio::net::TcpListener; use uv_cache::Cache; use uv_client::RegistryClientBuilder; use uv_version::version; #[tokio::test] async fn test_user_agent_has_version() -> Result<()> { // Set up the TCP listener on a random available port let listener = TcpListener::bind("127.0.0.1:0").await?; let addr = listener.local_addr()?; // Spawn the server loop in a background task tokio::spawn(async move { let svc = service_fn(move |req: Request| { // Get User Agent Header and send it back in the response let user_agent = req .headers() .get(USER_AGENT) .and_then(|v| v.to_str().ok()) .map(|s| s.to_string()) .unwrap_or_default(); // Empty Default future::ok::<_, hyper::Error>(Response::new(Body::from(user_agent))) }); // Start Hyper Server let (socket, _) = listener.accept().await.unwrap(); Http::new() .http1_keep_alive(false) .serve_connection(socket, svc) .with_upgrades() .await .expect("Server Started"); }); // Initialize uv-client let cache = Cache::temp()?; let client = RegistryClientBuilder::new(cache).build(); // Send request to our dummy server let res = client .cached_client() .uncached() .get(format!("http://{addr}")) .send() .await?; // Check the HTTP status assert!(res.status().is_success()); // Check User Agent let body = res.text().await?; // Verify body matches regex assert_eq!(body, format!("uv/{}", version())); Ok(()) }