private static BankAccount SetupAccount()
{
var accountId = Guid.NewGuid();
var card1Id = Guid.NewGuid();
var card2Id = Guid.NewGuid();
var account = new BankAccount(accountId, 1000);
account.AddDebitCard(card1Id, "123-456");
account.AddDebitCard(card2Id, "987-654");
account.SwipeDebitCard(card1Id, "Amazon", 35);
account.SwipeDebitCard(card2Id, "Grocery store", 120);
account.SwipeDebitCard(card1Id, "Gas station", 45);
return(account);
}