public void VisitVatReturnsCorrectResult(
int initialTotal
, int vatAmount)
{
var sut = new BasketTotalVisitor(initialTotal);
var actual = sut.Visit(new Vat(vatAmount));
var btv = Assert.IsAssignableFrom <BasketTotalVisitor>(actual);
Assert.Equal(initialTotal + vatAmount, btv.Total);
}
public void VisitDiscountReturnsCorrectResult(
int initialTotal,
int discount)
{
var sut = new BasketTotalVisitor(initialTotal);
var actual = sut.Visit(new Discount(discount));
var btv = Assert.IsAssignableFrom <BasketTotalVisitor>(actual);
Assert.Equal(initialTotal - discount, btv.Total);
}
public void VisitBasketTotalElementReturnsCorrectResult(
int expected,
int total)
{
var sut = new BasketTotalVisitor(expected);
var actual = sut.Visit(new BasketTotal(total));
var btv = Assert.IsAssignableFrom <BasketTotalVisitor>(actual);
Assert.Equal(expected, btv.Total);
}
public void VisitProductBasketElementReturnsCorrectResult(
int unitPrice,
int quantity,
int initialTotal)
{
var sut = new BasketTotalVisitor(initialTotal);
var productElement =
new BasketItem("Dummy name", unitPrice, quantity);
var actual = sut.Visit(productElement);
var btv = Assert.IsAssignableFrom <BasketTotalVisitor>(actual);
Assert.Equal(productElement.Total + initialTotal, btv.Total);
}