public void Should_Return_Total_Cost_When_Invalid_Item_Is_Added_In_Cart()
{
// Arrange
const int expectedPrice = 0;
var main = new MainProgram();
var myCart = new InitialiseCart();
// Act
myCart.ItemsInCart.Add("Mango", 10);
var actualPrice = main.PurchaseItems(myCart);
// Assert
Assert.AreEqual(expectedPrice, actualPrice, $"Actaul price does not match with expected price");
}
public void Should_Return_Total_Cost_As_Zero_When_No_Items_Added_To_Cart()
{
// Arrange
const double expectedPrice = 0.0;
var main = new MainProgram();
var myCart = new InitialiseCart();
// Act
new CartOperations(myCart.ItemsInCart);
var actualPrice = main.PurchaseItems(myCart);
// Assert
Assert.AreEqual(expectedPrice, actualPrice, $"Actaul price does not match with expected price");
}
public void Should_Return_Total_Cost_When_Valid_Item_And_Price_Is_Added_To_Cart()
{
// Arrange
var expectedPrice = 675;
var main = new MainProgram();
var myCart = new InitialiseCart();
// Act
myCart.ItemsInCart.Add("Apple", 10);
myCart.ItemsInCart.Add("Orange", 3);
var actualPrice = main.PurchaseItems(myCart);
// Assert
Assert.AreEqual(expectedPrice, actualPrice, $"Actaul price does not match with expected price");
}
public void Should_Return_Total_Cost_When_Items_Added_To_Existing_Cart()
{
// Arrange
const int expectedPrice = 675;
var main = new MainProgram();
var myCart = new InitialiseCart();
// Act
myCart.ItemsInCart.Add("Apple", 10);
new CartOperations(myCart.ItemsInCart).AddItem("Orange", 3);
var actualPrice = main.PurchaseItems(myCart);
// Assert
Assert.AreEqual(expectedPrice, actualPrice, $"Actual price does not match with expected price");
}
public void Should_Return_Total_Cost_When_Item_Quantity_Updated_From_Existing_Cart()
{
// Arrange
var expectedPrice = 750;
var main = new MainProgram();
var myCart = new InitialiseCart();
// Act
myCart.ItemsInCart.Add("Apple", 10);
myCart.ItemsInCart.Add("Orange", 3);
new CartOperations(myCart.ItemsInCart).UpdateItem("Orange", 3);
var actualPrice = main.PurchaseItems(myCart);
// Assert
Assert.AreEqual(expectedPrice, actualPrice, $"Actaul price does not match with expected price");
}
public double PurchaseItems(InitialiseCart purchaseRequest)
{
return(Calculate.CalculateTotalCost(purchaseRequest.ItemsInCart));
}
