From f69c8d9d59327d6c62790f7f30c8109c529a1c28 Mon Sep 17 00:00:00 2001
From: Santiago Gimeno <santiago.gimeno@gmail.com>
Date: Thu, 27 Oct 2022 16:40:57 +0200
Subject: [PATCH] test: deflake test-http2-empty-frame-without-eof

It may happen that the data in `emptyframe.http2` reaches the client
even before the client has started sending the request, causing an
`ERR_HTTP2_STREAM_ERROR` instead. Fix this by making sure the frame is
not sent until some data reaches the server.
---
 test/parallel/test-http2-empty-frame-without-eof.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/test/parallel/test-http2-empty-frame-without-eof.js b/test/parallel/test-http2-empty-frame-without-eof.js
index 2cd7d799769882..c384fdee6faf75 100644
--- a/test/parallel/test-http2-empty-frame-without-eof.js
+++ b/test/parallel/test-http2-empty-frame-without-eof.js
@@ -10,7 +10,9 @@ const { once } = require('events');
 async function main() {
   const blobWithEmptyFrame = readSync('emptyframe.http2');
   const server = net.createServer((socket) => {
-    socket.end(blobWithEmptyFrame);
+    socket.once('data', () => {
+      socket.end(blobWithEmptyFrame);
+    });
   }).listen(0);
   await once(server, 'listening');