test: dynamic port in cluster eaddrinuse

Removed common.PORT from test-cluster-eaddrinuse to eliminate the possibility that a dynamic port used in another test will collide with common.PORT. PR-URL: #12547 Ref: #12376 Reviewed-By: Colin Ihrig <[email protected]> Reviewed-By: James M Snell <[email protected]> Reviewed-By: Santiago Gimeno <[email protected]> Reviewed-By: Richard Lau <[email protected]> Reviewed-By: Luigi Pinca <[email protected]>

Author: Sebastian Plesciuc

test/parallel/test-cluster-eaddrinuse.js

@@ -9,11 +9,12 @@ const fork = require('child_process').fork;
 constnet=require('net');
 
 constid=''+process.argv[2];
+constport=''+process.argv[3];
 
 if(id==='undefined'){
 constserver=net.createServer(common.mustNotCall());
-server.listen(common.PORT,function(){
-constworker=fork(__filename,['worker']);
+server.listen(0,function(){
+constworker=fork(__filename,['worker',server.address().port]);
 worker.on('message',function(msg){
 if(msg!=='stop-listening')return;
 server.close(function(){
@@ -23,14 +24,14 @@ if (id === 'undefined'){
 });
 }elseif(id==='worker'){
 letserver=net.createServer(common.mustNotCall());
-server.listen(common.PORT,common.mustNotCall());
+server.listen(port,common.mustNotCall());
 server.on('error',common.mustCall(function(e){
 assert(e.code,'EADDRINUSE');
 process.send('stop-listening');
 process.once('message',function(msg){
 if(msg!=='stopped-listening')return;
 server=net.createServer(common.mustNotCall());
-server.listen(common.PORT,common.mustCall(function(){
+server.listen(port,common.mustCall(function(){
 server.close();
 }));
 });