static void Main(string[] args)
{
DateTime date = new DateTime(2020,12,12);
List<IPriceRule> pricingRules = new List<IPriceRule>();
pricingRules.Add(new OnePersonPerRoomPriceRule());
pricingRules.Add(new TwoPersonsPerRoomPriceRule());
pricingRules.Add(new TVAPriceRule());
pricingRules.Add(new SeeSideRoomPriceRule());
pricingRules.Add(new AirConditionedRoomPriceRule());
pricingRules.Add(new BreakfastPriceRule());
pricingRules.Add(new MoreThanTwoPersonsPerRoomPriceRule());
List<IPriceRule> discountRules = new List<IPriceRule>();
discountRules.Add(new EarlyBirdDisountRule());
discountRules.Add(new LastMinuteDiscountRule());
IPriceCalculator priceCalculator = new PriceCalculator(pricingRules,discountRules);
IRoom room = new Room();
room.NumberOfPersons = 2;
room.NumberOfDays = 1 ;
room.IsSeeSideRoom = true;
room.NumberOfBreakfastsPerDay = 1;
room.ReservationStartDate = date;
room.HasAirConditioner = true;
var price = priceCalculator.CalculatePrice(room);
Console.WriteLine("The price for the room is: {0}.", price);
}
public void CalculatePrice__PriceIsMaxValue__DoesNotThrow()
{
// A - arrange
IRoom room = new Room { Price = decimal.MaxValue };
IPriceRule priceRule = new TVAPriceRule();
// A - act
decimal result = priceRule.CalculatePrice(room);
// A - assert
Assert.AreEqual(decimal.MaxValue * 0.19m, result);
}
public void CalculatePrice__ForMultitpleRules__ReturnedPriceIsCorrect()
{
var rule1 = new Mock<IPriceRule>();
rule1.Setup(x => x.CalculatePrice(It.IsAny<IRoom>())).Returns(decimal.MaxValue);
var rule2 = new Mock<IPriceRule>();
rule2.Setup(x => x.CalculatePrice(It.IsAny<IRoom>())).Returns(15);
var rules = new List<IPriceRule> { rule1.Object, rule2.Object };
IPriceCalculator priceCalculator = new PriceCalculator(rules, null);
IRoom room = new Room();
var result = priceCalculator.CalculatePrice(room);
rule1.Verify(x => x.CalculatePrice(It.IsAny<IRoom>()), Times.Once);
rule2.Verify(x => x.CalculatePrice(It.IsAny<IRoom>()), Times.Once);
}
public void CalculatePrice__RoomPriceCoorectlySetup__ReturnedTvaValueIsCorrect()
{
// A - arrange
IRoom room = new Room { Price = 50 };
IPriceRule priceRule = new TVAPriceRule();
// A - act
decimal result = priceRule.CalculatePrice(room);
// A - assert
Assert.AreEqual(9.5m, result);
}