public void TestToProcess(int numberAccount, int numberBalancesCreated)
        {
            var date = DateTime.Today;

            var accounts = AccountFactory.CreateList(numberAccount);

            foreach (Account account in accounts.GetRange(0, numberBalancesCreated))
            {
                BalanceFactory.Create(x => x.Account = account);
            }

            var result = _repository.ToProcess(date, accounts);


            ////check
            Assert.AreEqual(result.Select(x => x.Id), accounts.Select(x => x.Id));
            Assert.AreEqual(result.Count, accounts.Count);
        }