test: replace callback with arrow functions

PR-URL: #24434 Reviewed-By: Michaël Zasso <[email protected]> Reviewed-By: Trivikram Kamat <[email protected]> Reviewed-By: Gireesh Punathil <[email protected]> Reviewed-By: Anna Henningsen <[email protected]>

Author: prodroy1

test/parallel/test-https-close.js

@@ -13,16 +13,16 @@ const options ={
 
 constconnections={};
 
-constserver=https.createServer(options,function(req,res){
-constinterval=setInterval(function(){
+constserver=https.createServer(options,(req,res)=>{
+constinterval=setInterval(()=>{
 res.write('data');
 },1000);
 interval.unref();
 });
 
-server.on('connection',function(connection){
+server.on('connection',(connection)=>{
 constkey=`${connection.remoteAddress}:${connection.remotePort}`;
-connection.on('close',function(){
+connection.on('close',()=>{
 deleteconnections[key];
 });
 connections[key]=connection;
@@ -37,16 +37,16 @@ function shutdown(){
 }
 }
 
-server.listen(0,function(){
+server.listen(0,()=>{
 constrequestOptions={
 hostname: '127.0.0.1',
-port: this.address().port,
+port: server.address().port,
 path: '/',
 method: 'GET',
 rejectUnauthorized: false
 };
 
-constreq=https.request(requestOptions,function(res){
+constreq=https.request(requestOptions,(res)=>{
 res.on('data',()=>{});
 setImmediate(shutdown);
 });