test: use dynamic port in test-dgram-send-callback-buffer

vieiraarturg · MylesBorins · commit 7909c6d46fc3 · 2017-07-17T11:27:21.000-04:00
Replace common.PORT with available port assigned by the operating system in test-dgram-send-callback-buffer. PR-URL: #12942 Refs: #12376 Reviewed-By: Luigi Pinca <luigipinca@gmail.com> Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Michael Dawson <mhdawson@ibm.com>
diff --git a/test/parallel/test-dgram-send-callback-buffer.js b/test/parallel/test-dgram-send-callback-buffer.js
@@ -14,4 +14,7 @@ const onMessage = common.mustCall(function(err, bytes) {
   client.close();
 });
 
-client.send(buf, common.PORT, common.localhostIPv4, onMessage);
+client.bind(0, () => client.send(buf,
+                                 client.address().port,
+                                 common.localhostIPv4,
+                                 onMessage));
