very basic test for initial rtt configurability

Author: robamu

neqo-transport/src/connection/tests/idle.rs

@@ -53,6 +53,13 @@ fn test_idle_timeout(client: &mut Connection, server: &mut Connection, timeout:
     assert!(matches!(client.state(), State::Closed(_)));
 }
 
+#[test]
+fn init_rtt_configuration() {
+    const CUSTOM_INIT_RTT: Duration = Duration::from_millis(200);
+    let client = new_client(ConnectionParameters::default().initial_rtt(CUSTOM_INIT_RTT));
+    assert_eq!(client.conn_params.get_initial_rtt(), CUSTOM_INIT_RTT);
+}
+
 #[test]
 fn idle_timeout() {
     let mut client = default_client();