test: early server response with data (#703)

- fix of the test's name after changing it in #634
- additional test that server also sends data frames correctly

tests/h2-tests/tests/server.rs

@@ -553,7 +553,7 @@ async fn recv_connection_header() {
 }
 
 #[tokio::test]
-async fn sends_reset_cancel_when_req_body_is_dropped() {
+async fn sends_reset_no_error_when_req_body_is_dropped() {
     h2_support::trace_init!();
     let (io, mut client) = mock::new();
 
@@ -563,8 +563,11 @@ async fn sends_reset_cancel_when_req_body_is_dropped() {
         client
             .send_frame(frames::headers(1).request("POST", "https://example.com/"))
             .await;
+        // server responded with data before consuming POST-request's body, resulting in `RST_STREAM(NO_ERROR)`.
+        client.recv_frame(frames::headers(1).response(200)).await;
+        client.recv_frame(frames::data(1, vec![0; 16384])).await;
         client
-            .recv_frame(frames::headers(1).response(200).eos())
+            .recv_frame(frames::data(1, vec![0; 16384]).eos())
             .await;
         client
             .recv_frame(frames::reset(1).reason(Reason::NO_ERROR))
@@ -578,7 +581,8 @@ async fn sends_reset_cancel_when_req_body_is_dropped() {
             assert_eq!(req.method(), &http::Method::POST);
 
             let rsp = http::Response::builder().status(200).body(()).unwrap();
-            stream.send_response(rsp, true).unwrap();
+            let mut tx = stream.send_response(rsp, false).unwrap();
+            tx.send_data(vec![0; 16384 * 2].into(), true).unwrap();
         }
         assert!(srv.next().await.is_none());
     };