public void AddDiscounts()
{
var rp = new TestReceiptPrinter();
var dp = new DiscountsProvider();
var m = new CartManager(new Cart(), rp, dp);
var productDiscount = dp.GetProductsDiscounts().First();
var cartDiscount = dp.GetCartDiscounts().First();
m.AddDiscount(productDiscount.Key);
m.AddDiscount(cartDiscount.Key);
var c1 = TestProducts.Cars.First();
var c2 = TestProducts.Cars.Skip(1).First();
m.AddProduct(c1);
m.AddProduct(c2);
m.PrintReceipt();
var state = rp.CartState;
Assert.Equal(1, state.ProductDiscounts.Count);
Assert.Equal(c1, state.ProductDiscounts.First().Key);
Assert.Equal(productDiscount.Value.Value, state.ProductDiscounts.First().Value.PercentValue);
Assert.Equal(1, state.CartDiscounts.Count);
Assert.Equal(cartDiscount.Value, state.CartDiscounts.First().PercentValue);
}
public void AddNonExistingDiscount()
{
var rp = new TestReceiptPrinter();
var dp = new DiscountsProvider();
var m = new CartManager(new Cart(), rp, dp);
Assert.Throws <DiscountNotFoundException>(() => m.AddDiscount("NON_EXISTING_CODE"));
}
