private MemberInfo[] CreateUpdatedGossip(int iteration,
                                                 RandTestQueueItem item,
                                                 ElectionsInstance[] instances,
                                                 MemberInfo[] initialGossip,
                                                 Dictionary<IPEndPoint, MemberInfo[]> previousGossip)
        {
            if (previousGossip[item.EndPoint].Length < 5)
            {
                Console.WriteLine("Update item: {0} : {1}", iteration, item.EndPoint.Port);
                return instances.Select((x, i) => 
                    MemberInfo.ForVNode(x.InstanceId, DateTime.UtcNow, VNodeState.Unknown, true,
                                        x.EndPoint, null, x.EndPoint, null, x.EndPoint, x.EndPoint,
                                        -1, 0, 0, -1, -1, Guid.Empty, 0)).ToArray();
            }

            return null;
        }
        private MemberInfo[] CreateUpdatedGossip(int iteration,
                                                 RandTestQueueItem item,
                                                 ElectionsInstance[] instances,
                                                 MemberInfo[] initialGossip,
                                                 Dictionary<IPEndPoint, MemberInfo[]> previousGossip)
        {
            if (iteration == 1 || (iteration % 100 != (item.EndPoint.Port % 1000) && _randomCase.Next(100) < 30 ))
                return null;

            if (previousGossip[item.EndPoint].Length < 5)
            {
                return instances.Select((x, i) => 
                                        MemberInfo.ForVNode(x.InstanceId, DateTime.UtcNow, VNodeState.Unknown, true,
                                                            x.EndPoint, null, x.EndPoint, null, x.EndPoint, x.EndPoint,
                                                            -1, 0, 0, -1, -1, Guid.Empty, 0))
                                .ToArray();
            }

            return null;
        }