public void Save_the_latest_transaction()
{
var date = DateTime.Now.AddSeconds(7);
_accountTransactions.SaveTransaction($"{date} | {10} | {55}");
var transactions = _accountTransactions.GetAccountTransactions().Last();
Assert.That(transactions.Amount, Is.EqualTo(10));
Assert.That(transactions.Balance, Is.EqualTo(55));
Assert.That(transactions.Date.ToShortDateString(), Is.EqualTo(date.ToShortDateString()));
}