[TestFixture]
    public class SorbnetSetterTests
    {
        private ISorbnetSetter _sorbnetSetter;

        [SetUp]
        public void SetUp()
        {
            _sorbnetSetter = new SorbnetSetter();
        }

        [Test]
        public void SetSorbnetIfMandatory_IsNotZusOrUsIsNotNbpAndAmountIsGreatherThanOneMln_ShouldSetSorbnet()
        {
            var payment = new DomesticPaymentModel();
            payment.CreditorBankAccountNumber = "322144499212";
            payment.Amount = 2000000;

            _sorbnetSetter.SetSorbnetIfMandatory(payment);

            Assert.AreEqual(SorbnetSetter.Rtgs, payment.Channel);
        }

        [Test]
        public void SetSorbnetIfMandatory_IsZusOrUsPayment_ShouldntSetSorbnet()
        {
            var payment = new DomesticPaymentModel();
            payment.CreditorBankAccountNumber = "322144499212";
            payment.Amount = 2000000;
            payment.Category = "TAXS";

            _sorbnetSetter.SetSorbnetIfMandatory(payment);

            Assert.AreNotEqual(SorbnetSetter.Rtgs, payment.Channel);
        }

        [Test]
        public void SetSorbnetIfMandatory_AmountIsSmallerThanOneMln_ShouldntSetSorbnet()
        {
            var payment = new DomesticPaymentModel();
            payment.CreditorBankAccountNumber = "322144499212";
            payment.Amount = 500;
            payment.Category = "TAXS";

            _sorbnetSetter.SetSorbnetIfMandatory(payment);

            Assert.AreNotEqual(SorbnetSetter.Rtgs, payment.Channel);
        }

        [Test]
        public void SetSorbnetIfMandatory_HasNbpBankAccount_ShouldntSetSorbnet()
        {
            var payment = new DomesticPaymentModel();
            payment.CreditorBankAccountNumber = "10100212388281892399192";
            payment.Amount = 500;
            payment.Category = "TAXS";

            _sorbnetSetter.SetSorbnetIfMandatory(payment);

            Assert.AreNotEqual(SorbnetSetter.Rtgs, payment.Channel);
        }
    }