public void TestOrder()
{
Func <Order, double> priceWithVatDelegate = ExpressionUtils.GetPropertyDelegate <Order, double>(o => o.PriceWithVat);
var order = new Order()
{
};
order.Price = 20;
order.Vat = 2;
Assert.Equal(60, priceWithVatDelegate(order));
Assert.Equal(10, priceWithVatDelegate(new Order()
{
Price = 10
}));
}
