test: replace anonymous closure with arrow func

PR-URL: https://github.com/nodejs/node/pull/24480
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Franziska Hinkelmann <franziska.hinkelmann@gmail.com>
Reviewed-By: Sakthipriyan Vairamani <thechargingvolcano@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>

1 files changed, 5 insertions, 5 deletions

diff --git a/test/parallel/test-stream2-unpipe-drain.js b/test/parallel/test-stream2-unpipe-drain.js
index 582ab61b06..ac2a3a5b06 100644
--- a/test/parallel/test-stream2-unpipe-drain.js
+++ b/test/parallel/test-stream2-unpipe-drain.js
@@ -51,13 +51,13 @@ const src2 = new TestReader();
 
 src1.pipe(dest);
 
-src1.once('readable', function() {
-  process.nextTick(function() {
+src1.once('readable', () => {
+  process.nextTick(() => {
 
     src2.pipe(dest);
 
-    src2.once('readable', function() {
-      process.nextTick(function() {
+    src2.once('readable', () => {
+      process.nextTick(() => {
 
         src1.unpipe(dest);
       });
@@ -66,7 +66,7 @@ src1.once('readable', function() {
 });
 
 
-process.on('exit', function() {
+process.on('exit', () => {
   assert.strictEqual(src1.reads, 2);
   assert.strictEqual(src2.reads, 2);
 });