test: remove common.PORT from test-net-throttle

Switch test-net-throttle from common.PORT to a port assigned by the operating system. PR-URL: #31749 Reviewed-By: Denys Otrishko <[email protected]> Reviewed-By: Tobias Nießen <[email protected]> Reviewed-By: Luigi Pinca <[email protected]> Reviewed-By: James M Snell <[email protected]> Reviewed-By: Anna Henningsen <[email protected]> Reviewed-By: Ruben Bridgewater <[email protected]>

Author: Trott

test/pummel/test-net-throttle.js

@@ -20,7 +20,7 @@
 // USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 'use strict';
-constcommon=require('../common');
+require('../common');
 constassert=require('assert');
 constnet=require('net');
 
@@ -32,8 +32,6 @@ let npauses = 0;
 console.log('build big string');
 constbody='C'.repeat(N);
 
-console.log(`start server on port ${common.PORT}`);
-
 constserver=net.createServer((connection)=>{
 connection.write(body.slice(0,part_N));
 connection.write(body.slice(part_N,2*part_N));
@@ -44,9 +42,11 @@ const server = net.createServer((connection) =>{
 connection.end();
 });
 
-server.listen(common.PORT,()=>{
+server.listen(0,()=>{
+constport=server.address().port;
+console.log(`server started on port ${port}`);
 letpaused=false;
-constclient=net.createConnection(common.PORT);
+constclient=net.createConnection(port);
 client.setEncoding('ascii');
 client.on('data',(d)=>{
 chars_recved+=d.length;