From: Jo Shields <jo.shields@xamarin.com>
Date: Mon, 23 Mar 2015 10:41:35 +0000 (+0000)
Subject: Add a helper class to assign a random port for a test.
X-Git-Url: http://wien.tomnetworks.com/gitweb/?a=commitdiff_plain;h=02981d6bc070d05f21c2d1a17573b3c23202a770;p=mono.git

Add a helper class to assign a random port for a test.

This helps in cases where two copies of the test suite are
running simultaneously, and both want to use the same hard-coded
ports in tests.
---

diff --git a/mcs/class/test-helpers/NetworkHelpers.cs b/mcs/class/test-helpers/NetworkHelpers.cs
new file mode 100644
index 00000000000..02709af2ba7
--- /dev/null
+++ b/mcs/class/test-helpers/NetworkHelpers.cs
@@ -0,0 +1,18 @@
+using System;
+using System.Net;
+using System.Net.Sockets;
+
+namespace MonoTests.Helpers {
+
+	public static class NetworkHelpers
+	{
+		public static int FindFreePort ()
+		{
+			TcpListener l = new TcpListener(IPAddress.Loopback, 0);
+			l.Start();
+			int port = ((IPEndPoint)l.LocalEndpoint).Port;
+			l.Stop();
+			return port;
+		}
+	}
+}