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, 2 deletions

diff --git a/test/parallel/test-dgram-send-multi-buffer-copy.js b/test/parallel/test-dgram-send-multi-buffer-copy.js
index 6ece56e02a..19222dac5f 100644
--- a/test/parallel/test-dgram-send-multi-buffer-copy.js
+++ b/test/parallel/test-dgram-send-multi-buffer-copy.js
@@ -20,7 +20,7 @@ const buf2 = Buffer.alloc(256, 'y');
 
 client.on('listening', function() {
   const toSend = [buf1, buf2];
-  client.send(toSend, common.PORT, common.localhostIPv4, onMessage);
+  client.send(toSend, this.address().port, common.localhostIPv4, onMessage);
   toSend.splice(0, 2);
 });
 
@@ -30,4 +30,4 @@ client.on('message', common.mustCall(function onMessage(buf, info) {
   client.close();
 }));
 
-client.bind(common.PORT);
+client.bind(0);