public void CreateShoppingBasket_1InputLineWith1Book_1BookInShoppingBasket()
{
//Arrange
string[] inputLines = new string[]
{
"1 book at 12.49"
};
IDictionary <string, CategoryType> productCategories = new Dictionary <string, CategoryType>()
{
{ "book", CategoryType.Books }
};
//Act
ShoppingBasket shoppingBasket = _shoppingBasketCreator.CreateShoppingBasket(inputLines, productCategories);
//Assert
Assert.AreEqual(1, shoppingBasket.Products.Count);
IProduct product = shoppingBasket.Products.Single();
Assert.AreEqual(1, product.Quantity);
Assert.AreEqual("book", product.ProductName);
Assert.AreEqual("1 book", product.Description);
Assert.AreEqual(CategoryType.Books, product.Category);
Assert.AreEqual(false, product.IsImported);
Assert.AreEqual(12.49, product.Price);
Assert.AreEqual("1 book", product.GetDescription());
Assert.AreEqual(12.49, product.CalculateGrossAmount());
}
public void CreateShoppingBasket_2InputLinesWith1ImportedBookAnd2Cakes_2ProductsInShoppingBasket()
{
//Arrange
string[] inputLines = new string[]
{
"1 imported book at 12.49",
"2 cake at 10",
};
IDictionary <string, CategoryType> productCategories = new Dictionary <string, CategoryType>()
{
{ "book", CategoryType.Books },
{ "cake", CategoryType.Foods }
};
//Act
ShoppingBasket shoppingBasket = _shoppingBasketCreator.CreateShoppingBasket(inputLines, productCategories);
//Assert
Assert.AreEqual(2, shoppingBasket.Products.Count);
IProduct book = shoppingBasket.Products.First();
Assert.AreEqual(1, book.Quantity);
Assert.AreEqual("book", book.ProductName);
Assert.AreEqual("1 imported book", book.Description);
Assert.AreEqual(CategoryType.Books, book.Category);
Assert.AreEqual(true, book.IsImported);
Assert.AreEqual(12.49, book.Price);
Assert.AreEqual("1 imported book", book.GetDescription());
Assert.AreEqual(12.49, book.CalculateGrossAmount());
IProduct cake = shoppingBasket.Products.Last();
Assert.AreEqual(2, cake.Quantity);
Assert.AreEqual("cake", cake.ProductName);
Assert.AreEqual("2 cake", cake.Description);
Assert.AreEqual(CategoryType.Foods, cake.Category);
Assert.AreEqual(false, cake.IsImported);
Assert.AreEqual(20, cake.Price);
Assert.AreEqual("2 cake", cake.GetDescription());
Assert.AreEqual(20, cake.CalculateGrossAmount());
}
public IList<TaxedProduct> ApplyTaxes(ShoppingBasket shoppingBasket)
{
if (shoppingBasket == null) throw new ArgumentNullException(nameof(shoppingBasket));
IList<TaxedProduct> taxedProducts = new List<TaxedProduct>();
for (var i = 0; i < shoppingBasket.Products.Count; i++)
{
IProduct product = shoppingBasket.Products[i];
foreach (Tax taxRule in _taxRules)
{
if (taxRule.IsApplicableFor(product))
{
ProductDecorator productDecorator = taxRule.GetTaxableProductDecorator(product);
product = productDecorator;
}
}
decimal grossAmount = product.CalculateGrossAmount();
taxedProducts.Add(new TaxedProduct(product, grossAmount));
}
return taxedProducts;
}
