public void TestTakeDish()
{
var customer = new Customer();
customer.TakeDish(new Dish(PriceRank.A));
customer.TakeDish(new Dish(PriceRank.B));
customer.TakeDish(new Dish(PriceRank.B));
customer.TakeDish(new Dish(PriceRank.C));
customer.TakeDish(new Dish(PriceRank.A));
Assert.AreEqual(5, customer.EatenDishes.Count);
}
public void TestSettleUpWithTax()
{
var service = new AccountService(new PriceTable(), (price, rank) => (int)(price * 1.05) );
var customer = new Customer();
customer.TakeDish( new Dish(PriceRank.A) );
customer.TakeDish( new Dish(PriceRank.B) );
customer.TakeDish( new Dish(PriceRank.C) );
customer.TakeDish( new Dish(PriceRank.C) );
customer.TakeDish( new Dish(PriceRank.D) );
Assert.AreEqual(1260, service.SettleUp(customer));
}
public void TestSettleUpDefault()
{
var service = new AccountService(new PriceTable());
var customer = new Customer();
customer.TakeDish( new Dish(PriceRank.A) );
customer.TakeDish( new Dish(PriceRank.B) );
customer.TakeDish( new Dish(PriceRank.C) );
customer.TakeDish( new Dish(PriceRank.C) );
customer.TakeDish( new Dish(PriceRank.D) );
Assert.AreEqual(1200, service.SettleUp(customer));
}
public int SettleUp(Customer customer)
{
return customer.EatenDishes.Sum(e => AdditionalPrice(Table.Price(e.Rank), e.Rank) );
}
public void TestConstruct()
{
var customer = new Customer();
Assert.AreEqual(0, customer.EatenDishes.Count);
}