With `--workers > 1` the parent does not import the app. Spawn-based workers re-import everything, so loading it in the supervisor only waste

A factory that builds its own SSLContext from scratch should work without ssl_keyfile/ssl_certfile.

A factory that just delegates to the default factory should produce a working server.

Test that protocol-specific close errors are converted to OSError.

Test that `send()` blocks while the transport's write buffer is full. Without backpressure, a server-initiated close can outrun in-flight data.

Test interrupting a Server that is run explicitly inside asyncio

The server should raise an exception if it sends multiple websocket.http.response.start events.

Test that lifespan.shutdown is called even when should_exit is set during startup.

Test that server shutdown does not send a second close frame during the handshake.

1. Request is sent 2. Sigint is sent to uvicorn 3. Shutdown sequence start 4. Request is _NOT_ finished before timeout_graceful_shutd

1. Server is started 2. Shutdown sequence start 3. Request is sent, but not accepted Result: Request should fail, and not be able to

1. Request is sent 2. Sigint is sent to uvicorn 3. Shutdown sequence start 4. Request is finished before timeout_graceful_shutdown=1

The factory can call the default and mutate the result (e.g., bump TLS minimum version).

Called on a keep-alive connection if no new data is received after a short delay.

Called on a keep-alive connection if no new data is received after a short delay.

Called on a keep-alive connection if no new data is received after a short delay.