public void Should_validate_account_and_payment_request()
        {
            const string accountNumber = "12312312ABC";
            var          request       = new MakePaymentRequest
            {
                PaymentScheme       = PaymentScheme.Bacs,
                DebtorAccountNumber = accountNumber
            };
            var account = accountBuilder
                          .WithAccountNumberAs(accountNumber)
                          .Build();

            config.DataStoreType.Returns(DataStoreType.Account);
            accountDataStore.GetAccount(Arg.Any <string>()).Returns(account);
            var paymentService = CreateService();

            paymentService.MakePayment(request);

            bacsValidator.Received(1).Validate(account, request);
        }