static void Main(string[] args)
{
//var promotions = new Promotion[]
//{
// new Promotion("Additional Sale test", "Orange", PromotionType.AdditionalSale, 2, 0, 0.5f, DateTime.UtcNow.AddDays(-2), DateTime.UtcNow.AddDays(1), null)
//};
//var json = JsonConvert.SerializeObject(promotions);
//System.Console.WriteLine(json);
var products = new FileReader("Files/items.txt")
.Read()
.Split("\n")
.Where(s => !string.IsNullOrWhiteSpace(s))
.Select(s => s.Trim());
var productRepository = new ProductRepository(new FileReader("Files/products.json"), new JsonTextSerializer());
var promotionRepository = new PromotionRepository(new FileReader("Files/promotions.json"), new JsonTextSerializer());
var saleService = new SaleService(productRepository, new PriceResolver(promotionRepository));
var sale = saleService.Checkout(products.ToArray());
var receiptService = new ReceiptService();
receiptService.Print(sale);
System.Console.Read();
}
public void Checkout()
{
var mockProductRepository = new Mock <IProductRepository>();
mockProductRepository.Setup(m => m.Find("Apple")).Returns(new Data.Models.Product("Apple", 2));
mockProductRepository.Setup(m => m.Find("Orange")).Returns(new Data.Models.Product("Orange", 3));
var mockPriceResolver = new Mock <IPriceResolver>();
mockPriceResolver.Setup(p => p.Resolve("Apple", 2, 1, PricingStrategy.Lowest)).Returns(2);
mockPriceResolver.Setup(p => p.Resolve("Apple", 2, 2, PricingStrategy.Lowest)).Returns(4);
mockPriceResolver.Setup(p => p.Resolve("Orange", 3, 1, PricingStrategy.Lowest)).Returns(3);
var saleService = new SaleService(mockProductRepository.Object, mockPriceResolver.Object);
var sale = saleService.Checkout(new string[] { "Apple" });
Assert.NotNull(sale);
Assert.Single(sale.SaleItems);
Assert.Equal("Apple", sale.SaleItems.ElementAt(0).ProductName);
Assert.Equal(2, sale.SaleItems.ElementAt(0).Amount);
Assert.Equal(1, sale.SaleItems.ElementAt(0).Quantity);
Assert.Equal(2, sale.Total);
sale = saleService.Checkout(new string[] { "Apple", "Apple" });
Assert.NotNull(sale);
Assert.Single(sale.SaleItems);
Assert.Equal("Apple", sale.SaleItems.ElementAt(0).ProductName);
Assert.Equal(4, sale.SaleItems.ElementAt(0).Amount);
Assert.Equal(2, sale.SaleItems.ElementAt(0).Quantity);
Assert.Equal(4, sale.Total);
sale = saleService.Checkout(new string[] { "Apple", "Apple", "Orange" });
Assert.NotNull(sale);
Assert.Equal(2, sale.SaleItems.Count());
Assert.Contains(sale.SaleItems, s => s.ProductName == "Apple");
Assert.Contains(sale.SaleItems, s => s.ProductName == "Orange");
Assert.Equal(7, sale.Total);
Assert.Throws <ProductNotFoundException>(() => saleService.Checkout(new string[] { "Banana" }));
}