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, 2 insertions, 3 deletions

diff --git a/test/parallel/test-tls-fast-writing.js b/test/parallel/test-tls-fast-writing.js
index aede462808..034a629665 100644
--- a/test/parallel/test-tls-fast-writing.js
+++ b/test/parallel/test-tls-fast-writing.js
@@ -10,7 +10,6 @@ var tls = require('tls');
 
 var fs = require('fs');
 
-var PORT = common.PORT;
 var dir = common.fixturesDir;
 var options = { key: fs.readFileSync(dir + '/test_key.pem'),
                 cert: fs.readFileSync(dir + '/test_cert.pem'),
@@ -41,9 +40,9 @@ function onconnection(conn) {
   });
 }
 
-server.listen(PORT, function() {
+server.listen(0, function() {
   var chunk = Buffer.alloc(1024, 'x');
-  var opt = { port: PORT, rejectUnauthorized: false };
+  var opt = { port: this.address().port, rejectUnauthorized: false };
   var conn = tls.connect(opt, function() {
     conn.on('drain', ondrain);
     write();