test: use random ports where possible

This helps to prevent issues where a failed test can keep a bound
socket open long enough to cause other tests to fail with EADDRINUSE
because the same port number is used.

PR-URL: https://github.com/nodejs/node/pull/7045
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Rod Vagg <rod@vagg.org>

1 files changed, 3 insertions, 4 deletions

diff --git a/test/parallel/test-net-stream.js b/test/parallel/test-net-stream.js
index c4d29b9077..d090038ce7 100644
--- a/test/parallel/test-net-stream.js
+++ b/test/parallel/test-net-stream.js
@@ -1,7 +1,6 @@
 'use strict';
-var common = require('../common');
+require('../common');
 var assert = require('assert');
-
 var net = require('net');
 
 var s = new net.Stream();
@@ -37,8 +36,8 @@ var server = net.createServer(function(socket) {
   }
   socket.end();
 
-}).listen(common.PORT, function() {
-  var conn = net.connect(common.PORT);
+}).listen(0, function() {
+  var conn = net.connect(this.address().port);
   conn.on('data', function(buf) {
     conn.pause();
     setTimeout(function() {