From eb91932e77c8b0af246ab1cc37531c79f77bf227 Mon Sep 17 00:00:00 2001
From: Wael Almattar <waelsy123@gmail.com>
Date: Sat, 22 May 2021 17:06:57 +0200
Subject: [PATCH] test: os, replace custom flatten method with built-in
 Array.flat

PR-URL: https://github.com/nodejs/node/pull/38770
Reviewed-By: Darshan Sen <raisinten@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
---
 test/parallel/test-os.js | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/test/parallel/test-os.js b/test/parallel/test-os.js
index 6a5b43368249db..922bab276bcb3c 100644
--- a/test/parallel/test-os.js
+++ b/test/parallel/test-os.js
@@ -39,10 +39,6 @@ const is = {
   }
 };
 
-const flatten = (arr) =>
-  arr.reduce((acc, c) =>
-    acc.concat(Array.isArray(c) ? flatten(c) : c), []);
-
 process.env.TMPDIR = '/tmpdir';
 process.env.TMP = '/tmp';
 process.env.TEMP = '/temp';
@@ -174,7 +170,8 @@ const netmaskToCIDRSuffixMap = new Map(Object.entries({
   'ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff': 128
 }));
 
-flatten(Object.values(interfaces))
+Object.values(interfaces)
+  .flat(Infinity)
   .map((v) => ({ v, mask: netmaskToCIDRSuffixMap.get(v.netmask) }))
   .forEach(({ v, mask }) => {
     assert.ok('cidr' in v, `"cidr" prop not found in ${inspect(v)}`);