public void GetNewsGroupsWithFilter()
        {
            using (var client = new Rfc977NntpClient())
            {
                client.Connect(Server);
                var groupCount = 0;
                foreach (var h in client.RetrieveNewsgroups())
                {
                    if (h.GroupName.StartsWith("comp.sys.mac"))
                    {
                        groupCount++;
                    }
                }

                Assert.Greater(groupCount, 10);
                Assert.Less(groupCount, 200);
            }
        }
        public void GetNewsGroups()
        {
            using (var client = new Rfc977NntpClient())
            {
                client.Connect(Server);
                var groupCount = 0;
                var groups = client.RetrieveNewsgroups().ToArray();
                foreach (var h in groups)
                {
                    groupCount++;
                }
                Assert.Greater(groupCount, 100);

                File.WriteAllLines("/temp/groups.txt", groups.Select(r => r.ToString()));
            }
        }