public void isValidCardWhen_ValidCardNO_InvalidPin()
        {
            CardRepositoryMoq.IsValidCard(MockCardRepository, accounts, "CardNO1", "6666");
            CardRepositoryMoq.GetAccounts(MockCardRepository, accounts);

            bool isValid = MockCardRepository.Object.IsValidCard();

            Assert.AreEqual(false, isValid);
        }
        public void isValidCardWhenValidCard()
        {
            CardRepositoryMoq.IsValidCard(MockCardRepository, accounts, "CardNO1", "6789");
            CardRepositoryMoq.GetAccounts(MockCardRepository, accounts);

            bool isValid = MockCardRepository.Object.IsValidCard();

            Assert.AreEqual(true, isValid);
        }