public async Task When_pay_whole_remaining_value_on_order_should_add_payment_to_list_change_remaining_value_to_pay_and_change_status_to_paid_out()
{
//Given
var posOrder = GetBasicPOSOrder();
var customer = new Entities.User.Customer {
Id = 1
};
var valueToPay = posOrder.OrderTotal;
var paymentService = MockPaymentProcessor(mock =>
mock.Setup(m => m.ProcessAsync(It.IsAny <IPaymentRequest>()))
.ReturnsAsync(PaymentResult.Paid(Payment.Create(null, null, valueToPay, valueToPay))));
var paymentMethod = new InHands(acceptsPartialPayment: false, paymentService);
//When
posOrder.DefinePaymentMethod(paymentMethod);
await posOrder.PayAsync(valueToPay, customer);
//Then
Assert.True(posOrder.PaidOut);
Assert.Equal(0, posOrder.RemainingValueToPay);
Assert.Single(posOrder.Payments);
}