public async Task CheckoutProcessReturns_Correct_Total(List <string> productCodes, decimal actualPrice)
{
// Arrange
var context = new Context(new DbContextOptionsBuilder <Context>().UseInMemoryDatabase("stage").Options);
context.AddRange(CheckoutProcessTestData.Products);
context.SaveChanges();
var repository = new Repository <Product>(context);
var productRuleBinder = new ProductRuleBinder();
productRuleBinder.Add(new Product {
Code = "TICKET", DefaultPrice = 5.00M, Name = "Triggerise Ticket"
}, new TwoForOnePromotionRule());
productRuleBinder.Add(new Product {
Code = "HOODIE", DefaultPrice = 5.00M, Name = "Triggerise Hoodie"
}, new BulkPurchasePriceRule(3, 19.00M));
// Act
var checkoutProcess = new Checkout(repository, productRuleBinder);
foreach (var code in productCodes)
{
await checkoutProcess.Scan(code);
}
var total = checkoutProcess.GetTotal();
// Assert
Assert.Equal(actualPrice, total);
}
static void Main(string[] args)
{
Console.WriteLine("Triggerise BE Challenge!");
var services = new ServiceCollection();
services.AddDbContext <Context>(opt => opt.UseInMemoryDatabase("stage"));
var products = new List <Product>
{
new Product {
Id = Guid.NewGuid(), Code = "TICKET", Name = "Triggerise Ticket", DefaultPrice = 5.00M
},
new Product {
Id = Guid.NewGuid(), Code = "HOODIE", Name = "Triggerise Hoodie", DefaultPrice = 20.00M
},
new Product {
Id = Guid.NewGuid(), Code = "HAT", Name = "Triggerise Hat", DefaultPrice = 7.50M
}
};
var productrepository = new Repository <Product>(services.BuildServiceProvider().GetService <Context>());
productrepository.AddRangeAsync(products).Wait();
productrepository.SaveChanges();
services.AddScoped(typeof(ProductRuleBinder), s =>
{
var _productRuleBinder = new ProductRuleBinder();
var ticketproduct = productrepository.Get(filter: x => x.Code.Equals("TICKET", StringComparison.OrdinalIgnoreCase)).First();
var hoodieproduct = productrepository.Get(filter: x => x.Code.Equals("HOODIE", StringComparison.OrdinalIgnoreCase)).First();
_productRuleBinder.Add(ticketproduct, new TwoForOnePromotionRule());
_productRuleBinder.Add(hoodieproduct, new BulkPurchasePriceRule(3, 19.00M));
return(_productRuleBinder);
});
var productRuleBinder = services.BuildServiceProvider().GetService <ProductRuleBinder>();
var checkout = new Checkout(productrepository, productRuleBinder);
checkout.Scan("TICKET").Wait();
checkout.Scan("HOODIE").Wait();
checkout.Scan("HAT").Wait();
var total = checkout.GetTotal();
Console.ForegroundColor = ConsoleColor.Yellow;
Console.WriteLine($"Total = $ {total}");
Console.ReadKey();
}
public Checkout(IRepository <Product> repository, ProductRuleBinder productRuleBinder)
{
_productRuleBinder = productRuleBinder ?? throw new ArgumentNullException(nameof(productRuleBinder));
_repository = repository ?? throw new ArgumentNullException(nameof(repository));
}
