fn test_try_read_large_header_line()

in src/connection.rs [752:776]

• 22 lines of code
• 2 McCabe index (conditional complexity)

    fn test_try_read_large_header_line() {
        // Header line longer than BUFFER_SIZE bytes.
        let (mut sender, receiver) = UnixStream::pair().unwrap();
        receiver.set_nonblocking(true).expect("Can't modify socket");
        let mut conn = HttpConnection::new(receiver);
        sender
            .write_all(b"PATCH http://localhost/home HTTP/1.1\r\nhead: ")
            .unwrap();

        let mut request_body: Vec<u8> = Vec::with_capacity(1030);
        for _ in 0..86 {
            request_body.write_all(b"abcdefghijkl").unwrap();
        }
        request_body.write_all(b"\r\n\r\n").unwrap();
        sender.write_all(request_body.as_slice()).unwrap();
        assert!(conn.try_read().is_ok());

        let expected_msg = &format!("head: {}", String::from_utf8(request_body).unwrap())[..1024];
        assert_eq!(
            conn.try_read().unwrap_err(),
            ConnectionError::ParseError(RequestError::HeaderError(
                HttpHeaderError::SizeLimitExceeded(expected_msg.to_string())
            ))
        );
    }