public void MostProfitableAccount_TwentyTransactionsInInput()
{
//arrange
TransactionProcessor transactionProcessor = new TransactionProcessor(transactions);
//act
TransactionsStatistics statistics = transactionProcessor.MostProfitableAccount(2020);
//assert
Assert.AreEqual("Account1", statistics.Account);
Assert.AreEqual(10000, statistics.Amount);
}