test: fix flaky test-http2-stream-destroy-event-order

Alternative to #31590.

It appears that the issue here is that the test falsely assumed that
closing the client (which also currently destroys the socket rather
than gracefully shutting down the connection) would still leave
enough time for the server side to receive the stream error.

Address that by explicitly waiting for the server side to receive the
stream error before closing the client and the connection with it.

Refs: #31590
Refs: #20750

PR-URL: #31610
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Denys Otrishko <shishugi@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>

Author: addaleax

test/parallel/parallel.status

@@ -22,9 +22,6 @@ test-http2-multistream-destroy-on-read-tls: PASS,FLAKY
 # https://github.com/nodejs/node/issues/20750
 test-http2-pipe: PASS,FLAKY
 # https://github.com/nodejs/node/issues/20750
-# https://github.com/nodejs/node/pull/31590
-test-http2-stream-destroy-event-order: PASS,FLAKY
-# https://github.com/nodejs/node/issues/20750
 test-stream-pipeline-http2: PASS,FLAKY
 # https://github.com/nodejs/node/issues/24497
 test-timers-immediate-queue: PASS,FLAKY

test/parallel/test-http2-stream-destroy-event-order.js

@@ -10,6 +10,7 @@ let req;
 const server = http2.createServer();
 server.on('stream', common.mustCall((stream) => {
   stream.on('error', common.mustCall(() => {
+    client.close();
     stream.on('close', common.mustCall(() => {
       server.close();
     }));
@@ -22,8 +23,6 @@ server.listen(0, common.mustCall(() => {
   req = client.request();
   req.resume();
   req.on('error', common.mustCall(() => {
-    req.on('close', common.mustCall(() => {
-      client.close();
-    }));
+    req.on('close', common.mustCall());
   }));
 }));