public void UserSHouldBeAbleToAddAProductForACustomer()
{
Product newProduct = new Product()
{
Name = "Computer",
Quantity = 2,
Price = 1200.00,
CustomerId = 13,
DateCreated = DateTime.Now
};
List <Product> emptyProductList = _customerManager.GetCustomerProducts();
Assert.True(emptyProductList.Count == 0);
List <Product> allProducts = _customerManager.AddCustomerProduct(newProduct);
Assert.Contains(newProduct, allProducts);
}