private void SimulateWork(Action<DbManager> action, IDbConnectionFactory connectionFactory, int maxUsers = 5, int execCount = 3)
        {
            int count = 0;
            while (count <= execCount)
            {
                var tasks = new List<Task>();
                for (int i = 0; i < maxUsers; i++)
                {
                    var task = Task.Factory.StartNew(o =>
                        {
                            using (var dbManager = connectionFactory.CreateDbManager())
                            {
                                action(dbManager);
                            }
                        }, i, TaskCreationOptions.LongRunning);

                    tasks.Add(task);
                }
                Task.WaitAll(tasks.ToArray());
                Thread.Sleep(1000);

                count++;
            }
        }