From 4e346e85cfbb7a10a47f7508f59fe328eed4ca49 Mon Sep 17 00:00:00 2001
From: Luigi Pinca <luigipinca@gmail.com>
Date: Fri, 19 Nov 2021 08:33:31 +0100
Subject: [PATCH] test: deflake cluster-concurrent-disconnect

Occasionally the error code is `'ENOTCONN'` on macOS. Add it as an
allowed/expected code.

Fixes: https://github.com/nodejs/node/issues/38405
---
 test/parallel/test-cluster-concurrent-disconnect.js | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/test/parallel/test-cluster-concurrent-disconnect.js b/test/parallel/test-cluster-concurrent-disconnect.js
index 4920276745c180..d97db39a5bb38a 100644
--- a/test/parallel/test-cluster-concurrent-disconnect.js
+++ b/test/parallel/test-cluster-concurrent-disconnect.js
@@ -26,7 +26,11 @@ if (cluster.isPrimary) {
     // to send messages when the worker is disconnecting.
     worker.on('error', (err) => {
       assert.strictEqual(err.syscall, 'write');
-      assert.strictEqual(err.code, 'EPIPE');
+      if (common.isOSX) {
+        assert(['EPIPE', 'ENOTCONN'].includes(err.code), err);
+      } else {
+        assert.strictEqual(err.code, 'EPIPE');
+      }
     });
 
     worker.once('disconnect', common.mustCall(() => {