public void Items_Count_Should_Be_0_When_10_Items_Adjusted_To_Negative_10() {
ShoppingCart cart = new ShoppingCart("TEST");
Product p = new Product("SKU");
cart.AddItem(p,10);
cart.AdjustQuantity(p, -10);
Assert.Equal(0, cart.Items.Count);
}
public void SubTotal_Should_Be_100_When_2_Items_of_Price_5_Adjusted_to_20() {
ShoppingCart cart = new ShoppingCart("TEST");
Product p = new Product("SKU");
p.BasePrice = 5;
cart.AddItem(p, 1);
cart.AddItem(p, 1);
Assert.Equal(10, cart.SubTotal);
cart.AdjustQuantity(p, 20);
Assert.Equal(100, cart.SubTotal);
}
public void Cart_Item_Quantity_Should_Adjust_To_10() {
ShoppingCart cart = new ShoppingCart("TEST");
Product p = new Product("SKU");
cart.AddItem(p);
cart.AdjustQuantity(p, 10);
Assert.Equal(10, cart.TotalItems);
}
public void ItemLastAdded_Should_Be_Sku2_When_SKu1_Sku2_Added_In_Sequence_Regardless_Of_Adjustments() {
ShoppingCart cart = new ShoppingCart("TEST");
Product p = new Product("SKU1");
Product p2 = new Product("SKU2");
cart.AddItem(p, 1, DateTime.Now.AddSeconds(-1));
cart.AddItem(p2, 1, DateTime.Now.AddSeconds(1));
cart.AdjustQuantity(p, 10);
Assert.Equal("SKU2", cart.ItemLastAdded.Product.SKU);
}