public void ShoppingCartWithOneByWeightPriceLineItemTest()
{
// arrange
ShoppingCart shoppingCart = new ShoppingCart
{
HasCoupon = false,
CouponTotalPriceThreshold = 10.00m,
CouponDiscount = 1.00m
};
LineItem lineItem = new ByWeightPriceLineItem
{
ProductId = 1,
Name = "Apples",
WeightInPounds = 2.00,
PricePerPound = 2.00m
};
shoppingCart.Add(lineItem);
//act
decimal actualTotalPrice = shoppingCart.GetTotalPrice();
// assert
const decimal expectedTotalPrice = 4.00m;
Assert.AreEqual(expectedTotalPrice, actualTotalPrice);
}
public void ByWeightPriceLineItemsSettersAndGetterTests()
{
// arrange
ByWeightPriceLineItem fixedPriceLineItem = new ByWeightPriceLineItem
{
ProductId = 1,
Name = "Oranges",
PricePerPound = 2.00m,
WeightInPounds = 1.50
};
//act
int actualProductId = fixedPriceLineItem.ProductId;
string actualName = fixedPriceLineItem.Name;
decimal actualPricePerPound = fixedPriceLineItem.PricePerPound;
double actualWeightInPounds = fixedPriceLineItem.WeightInPounds;
// assert
const int expectedProductId = 1;
const string expectedName = "Oranges";
const decimal expectedPricePerPound = 2.00m;
const double expectedWeightInPounds = 1.50;
Assert.AreEqual(expectedProductId, actualProductId);
Assert.AreEqual(expectedName, actualName);
Assert.AreEqual(expectedPricePerPound, actualPricePerPound);
Assert.AreEqual(expectedWeightInPounds, actualWeightInPounds);
}
public void PrintByWeightLineItemTest()
{
// arrange
ByWeightPriceLineItem byWeightPriceLineItem = new ByWeightPriceLineItem
{
ProductId = 3,
Name = "Apples",
PricePerPound = 1.00m,
WeightInPounds = 1.75
};
//act
string byWeightPriceLineItemString = byWeightPriceLineItem.ToString();
// assert
Assert.AreNotEqual(0, byWeightPriceLineItemString.Length);
}
private void Add(ByWeightPriceLineItem byWeightPriceLineItem)
{
if (byWeightPriceLineItem == null)
{
throw new ArgumentNullException("byWeightPriceLineItem");
}
ByWeightPriceLineItem existingByWeightPriceLineItem = _uniqueByWeightPriceLineItemList.SingleOrDefault(p => p.ProductId == byWeightPriceLineItem.ProductId);
if (existingByWeightPriceLineItem != null)
{
// if by weight item exists in shopping cart, then add new weight
existingByWeightPriceLineItem.WeightInPounds += byWeightPriceLineItem.WeightInPounds;
}
else
{
// else add to shopping cart
_uniqueByWeightPriceLineItemList.Add(byWeightPriceLineItem);
}
}
