static void Main(string[] args)
{
//LargePizza largePizza = new LargePizza();
Pizza largePizza = new LargePizza();
largePizza = new Cheese(largePizza);
largePizza = new Ham(largePizza);
largePizza = new Peppers(largePizza);
//Console.WriteLine(largePizza.Description);
Console.WriteLine(largePizza.GetDescription());
Console.WriteLine("{0:C2}", largePizza.CalculateCost());
Console.ReadKey();
Console.WriteLine();
Beverage coffee = new Espresso();
coffee = new Mocha(coffee);
coffee = new Mocha(coffee);
coffee = new Whip(coffee);
Console.WriteLine(coffee.GetDescription());
Console.WriteLine("{0:C2}", coffee.Cost());
Console.ReadKey();
}
static void Main(string[] args)
{
Beverage beverage = new Expresso();
Console.WriteLine(beverage.GetDescription() + " R$" + beverage.Cost());
Console.WriteLine();
Beverage beverage2 = new DarkRoast();
beverage2 = new Mocha(beverage2);
beverage2 = new Mocha(beverage2);
beverage2 = new Whip(beverage2);
Console.WriteLine(beverage2.GetDescription() + " R$" + beverage2.Cost());
Console.WriteLine();
Beverage beverage3 = new HouseBlend();
beverage3 = new Soy(beverage3);
beverage3 = new Mocha(beverage3);
beverage3 = new Whip(beverage3);
Console.WriteLine(beverage3.GetDescription() + " R$" + beverage3.Cost());
Console.WriteLine();
Console.ReadKey();
}
/// <summary>
/// # Motivation
/// I can now attach responsibilities to an object dynamically to add behaviour at runtime.
///
/// # Structure
/// Beverage
/// --> base class so all objects are of same type
/// CondimentDecorator : Bevarage
/// --> interchangeable with Beverage
///
/// # Sample Problem
/// A coffee shop wants to make an ordering system for all their drinks. Ofcourse there are a lot of combination with condiments/roasts.
/// We could create a base class and let all possible combinations inherit from the superclass and override their behaviour, but that would quickly become a mess.
///
/// # Solution
/// By creating a Decorator class which inherits from the baseclass (to effectively swap between types), I can now dynamically create composite objects at runtime.
/// To add a drink to the system:
/// 1. inherit from the base class, set instance fields in constructor
/// 2. override the 'Cost()' method to return desired cost
/// To add a condiment to the system:
/// 1. inherit from 'CondimentDecorator' (indirectly from base class as well
/// 2. add instance field from type Beverage
/// 3. initialize in constructor
/// 4. override GetDescription() and Cost() accordingly
/// To create a composite object at runtime:
/// 1. Create a new instance of a drink (Beverage)
/// 2. To add a condiment, assign the instance to a new instance of the condiment with itself as param
/// A. Beverage darkRoast = new DarkRoast();
/// B. darkRoast = new Mocha(darkRoast);
/// </summary>
public void Test()
{
Beverage beverage = new Espresso();
Console.WriteLine($"{beverage.GetDescription()} ${beverage.Cost()}");
Beverage beverage1 = new DarkRoast();
beverage1 = new Mocha(beverage1);
Console.WriteLine($"{beverage1.GetDescription()} ${beverage1.Cost()}");
Beverage beverage2 = new DarkRoast();
beverage2 = new Mocha(beverage2);
Console.WriteLine($"{beverage2.GetDescription()} ${beverage2.Cost()}");
beverage2 = new Mocha(beverage2);
Console.WriteLine($"{beverage2.GetDescription()} ${beverage2.Cost()}");
beverage2 = new Whip(beverage2);
Console.WriteLine($"{beverage2.GetDescription()} ${beverage2.Cost()}");
Beverage beverage3 = new HouseBlend();
beverage3 = new Soy(beverage3);
beverage3 = new Mocha(beverage3);
beverage3 = new Whip(beverage3);
Console.WriteLine($"{beverage3.GetDescription()} ${beverage3.Cost()}");
}
static void Main(string[] args)
{
Beverage beverage1 = new DarkRoast();
beverage1 = new Milk(beverage1);
beverage1 = new Whip(beverage1);
Console.WriteLine("Total Price: {0}, Description: {1}",
beverage1.Cost(), beverage1.GetDescription);
}
public void HouseBlendWithSoyWithMochaWithWhip()
{
Beverage beverage = new HouseBlend();
beverage = new Soy(beverage);
beverage = new Mocha(beverage);
beverage = new Whip(beverage);
Assert.AreEqual(1.34, beverage.Cost(),DELTA);
}
public void TestDecaf()
{
Beverage beverage = new Decaf();
beverage = new Mocha(beverage);
beverage = new Whip(beverage);
Assert.AreEqual("Decaf Coffee, Mocha, Whip $1.35", beverage.GetDescription() +
" $" + beverage.Cost());
}
public void HouseBlendWithSoyWithMochaWithWhip()
{
Beverage beverage = new HouseBlend();
beverage = new Soy(beverage);
beverage = new Mocha(beverage);
beverage = new Whip(beverage);
Assert.AreEqual(1.34, beverage.Cost(), DELTA);
}
public void ShowPattern()
{
Beverage beverage1 = new Espresso();
beverage1 = new Mocha(beverage1);
beverage1 = new Mocha(beverage1);
beverage1 = new Whip(beverage1);
var desc = beverage1.GetDescription();
var total = beverage1.Cost();
}
public void ShowPattern()
{
Beverage beverage1 = new Espresso();
beverage1 = new Mocha(beverage1);
beverage1 = new Mocha(beverage1);
beverage1 = new Whip(beverage1);
var desc = beverage1.GetDescription();
var total = beverage1.Cost();
}
private static void RunDecoratorPattern()
{
Beverage beverage = new Espresso();
Console.WriteLine($"{beverage.GetDescription()} ${beverage.Cost()}");
Beverage beverage1 = new HouseBlend();
beverage1 = new Mocha(beverage1);
beverage1 = new Mocha(beverage1);
beverage1 = new Whip(beverage1);
Console.WriteLine($"{beverage1.GetDescription()} ${beverage1.Cost()}");
}
static void Main(string[] args)
{
Beverage beverage = new Expresso(Size.Grande);
Console.WriteLine(beverage.GetDescription() + " | " + beverage.Cost());
Beverage beverage2 = new Expresso(Size.Grande);
beverage2 = new Mocha(beverage2);
beverage2 = new Whip(beverage2);
Console.WriteLine(beverage2.GetDescription() + " | " + beverage2.Cost());
}
public void StarBuzzCoffee()
{
Beverage espresso = new Espresso();
Console.WriteLine(espresso.GetDescription() + " $" + espresso.Cost());
Beverage houseBlend = new HouseBlend();
houseBlend = new Soy(houseBlend);
houseBlend = new Mocha(houseBlend);
houseBlend = new Whip(houseBlend);
Console.WriteLine(houseBlend.GetDescription() + " $" + houseBlend.Cost());
}
static void RunDecorator()
{
Beverage beverage = new Expresso();
Console.WriteLine(beverage.GetDescription() + " $ " + beverage.Cost());
Beverage beverage2 = new HouseBlend();
beverage2 = new Mocha(beverage2);
beverage2 = new Soy(beverage2);
beverage2 = new Whip(beverage2);
Console.WriteLine(beverage2.GetDescription() + " $ " + beverage2.Cost());
}
static void Main(string[] args)
{
Beverage beverage = new Espresso();
Console.WriteLine($"{beverage.GetDescription()} : {beverage.Cost()}");
//New beverage
//Wrap it with a mocha, second mocha and then whip
Beverage beverage2 = new Espresso();
beverage2 = new Mocha(beverage2);
beverage2 = new Mocha(beverage2);
beverage2 = new Whip(beverage2);
Console.WriteLine($"{beverage2.GetDescription()} : {beverage2.Cost()}");
}
public void StarbuzzCafe()
{
//Beverage beverage = new Americano();
//Console.WriteLine(beverage.GetDescription() + " $" + beverage.Cost());
//beverage = new Mocha(beverage);
//Console.WriteLine(beverage.GetDescription() + " $" + beverage.Cost());
Beverage beverage1 = new Americano();
beverage1 = new Mocha(beverage1);
beverage1 = new Mocha(beverage1);
beverage1 = new Whip(beverage1);
//beverage1 = new DarkRoast();
Console.WriteLine(beverage1.GetDescription() + " $" + beverage1.Cost());
}
static void Main(string[] args)
{
Beverage beverage = new Espresso();
Console.WriteLine(beverage.GetDescription() + " $" + beverage.Cost());
Beverage beverage2 = new HouseBlend();
beverage2 = new Mocha(beverage2);
beverage2 = new Soy(beverage2);
beverage2 = new Whip(beverage2);
Console.WriteLine(beverage2.GetDescription() + " $" + beverage2.Cost());
Beverage beverage3 = new DarkRoase();
beverage3 = new Mocha(beverage3);
beverage3 = new Mocha(beverage3);
beverage3 = new Whip(beverage3);
Console.WriteLine(beverage3.GetDescription() + " $" + beverage3.Cost());
//Console.ReadLine();
Console.WriteLine("---------------------\n");
// 我买了个苹果手机
Phone phone = new ApplePhone();
// 现在想贴膜了
Decorator applePhoneWithSticker = new Sticker(phone);
// 扩展贴膜行为
applePhoneWithSticker.Print();
Console.WriteLine("----------------------\n");
// 现在我想有挂件了
Decorator applePhoneWithAccessories = new Accessories(phone);
// 扩展手机挂件行为
applePhoneWithAccessories.Print();
Console.WriteLine("----------------------\n");
// 现在我同时有贴膜和手机挂件了
Sticker sticker = new Sticker(phone);
Accessories applePhoneWithAccessoriesAndSticker = new Accessories(sticker);
applePhoneWithAccessoriesAndSticker.Print();
Console.ReadLine();
}
static void Main(string[] args)
{
Beverage.Beverage espresso = new Espresso();
Console.WriteLine($"{espresso.GetDescription()}, ${espresso.Cost()}");
Beverage.Beverage soyHouseBlend = new HouseBlend();
soyHouseBlend = new Soy(soyHouseBlend);
Console.WriteLine($"{soyHouseBlend.GetDescription()}, ${soyHouseBlend.Cost()}");
Beverage.Beverage doubleMochaWithWhipInDarkRoast = new DarkRoast();
doubleMochaWithWhipInDarkRoast = new Mocha(doubleMochaWithWhipInDarkRoast);
doubleMochaWithWhipInDarkRoast = new Mocha(doubleMochaWithWhipInDarkRoast);
doubleMochaWithWhipInDarkRoast = new Whip(doubleMochaWithWhipInDarkRoast);
Console.WriteLine($"{doubleMochaWithWhipInDarkRoast.GetDescription()}, ${doubleMochaWithWhipInDarkRoast.Cost()}");
Console.ReadKey();
}
public static void Start()
{
IBeverage beverage = new Espresso(BeverageSize.TALL);
Console.WriteLine($"{beverage.Description} ${beverage.Cost()}");
IBeverage beverage2 = new Whip(new Mocha(new Mocha(new DarkRoast(BeverageSize.GRANDE))));
Console.WriteLine($"{beverage2.Description} ${beverage2.Cost()}");
IBeverage beverage4 = new HouseBlend(BeverageSize.VENTI);
beverage4 = new Soy(beverage4);
beverage4 = new Mocha(beverage4);
beverage4 = new Whip(beverage4);
Console.WriteLine($"{beverage4.Description} ${beverage4.Cost()}");
}
public void Expresso_ShouldBeExpressoAndCostThreeDollarsAndFortyCents_WhithMochaWhipAndVenti()
{
//Arrange
BeverageSize beverageSize = BeverageSize.VENTI;
Beverage beverage = new Expresso();
beverage.Size = beverageSize;
beverage = new Mocha(beverage);
beverage.Size = beverageSize;
beverage = new Whip(beverage);
//Act
var description = beverage.GetDescription();
var cost = beverage.Cost();
//Assert
description.Should().Be("Expresso, Mocha, Whip");
Math.Round(cost, 2).Should().Be(3.4);
}
static void Main()
{
Beverage beverage1 = new DarkRoast();
Beverage beverage2 = new Espresso();
beverage2 = new Milk(beverage2);
Beverage beverage3 = new DarkRoast();
beverage3 = new Milk(beverage3);
beverage3 = new Whip(beverage3);
Console.WriteLine(beverage1.GetDescription() + "\n" + beverage1.Cost());
Console.WriteLine(beverage2.GetDescription() + "\n" + beverage2.Cost());
Console.WriteLine(beverage3.GetDescription() + "\n" + beverage3.Cost());
Console.ReadKey();
}
static void Main(string[] args)
{
Beverage beverage = new Espresso();
Console.WriteLine($"{beverage.GetDescription()} ${beverage.Cost()}");
Beverage beverage2 = new DarkRoast();
beverage2 = new Mocha(beverage2);
beverage2 = new Mocha(beverage2);
beverage2 = new Whip(beverage2);
Console.WriteLine($"{beverage2.GetDescription()} ${beverage2.Cost()}");
Beverage beverage3 = new HouseBlend();
beverage3 = new Soy(beverage3);
beverage3 = new Mocha(beverage3);
beverage3 = new Whip(beverage3);
Console.WriteLine($"{beverage3.GetDescription()} ${beverage3.Cost()}");
}
static void Main()
{
Beverage beverage0 = new Espresso();
System.Console.WriteLine($"{beverage0.GetDescription()} {beverage0.Cost()} $");
Beverage beverage1 = new DarkRoast();
beverage1 = new Mocha(beverage1);
beverage1 = new Mocha(beverage1);
beverage1 = new Whip(beverage1);
System.Console.WriteLine($"{beverage1.GetDescription()} {beverage1.Cost()} $");
Beverage beverage2 = new HouseBlend();
beverage2 = new Soy(beverage2);
beverage2 = new Mocha(beverage2);
beverage2 = new Whip(beverage2);
System.Console.WriteLine($"{beverage2.GetDescription()} {beverage2.Cost()} $");
}
private static void TestDecoratorPattern()
{
IBeverage beverage = new Espresso(CoffeeSize.Tall);
Console.WriteLine("{0} $ {1}", beverage.Description, beverage.Cost());
IBeverage beverage1 = new DarkRoast(CoffeeSize.Tall);
beverage1 = new Mocha(beverage1);
beverage1 = new Mocha(beverage1);
beverage1 = new Whip(beverage1);
Console.WriteLine($"{beverage1.Description} $ {beverage1.Cost()}");
IBeverage beverage2 = new HouseBlend(CoffeeSize.Tall);
beverage2 = new Soy(beverage2);
beverage2 = new Mocha(beverage2);
beverage2 = new Whip(beverage2);
Console.WriteLine($"{beverage2.Description} $ {beverage2.Cost()}");
}
static void Main(string[] args)
{
Beverage beverage1 = new Espresso();
Console.WriteLine(beverage1.ToString() + " $" + beverage1.Cost());
Beverage beverage2 = new DarkRoast();
beverage2 = new Mocha(beverage2);
beverage2 = new Mocha(beverage2);
beverage2 = new Whip(beverage2);
Console.WriteLine(beverage2.ToString() + " $" + beverage2.Cost());
Beverage beverage3 = new HouseBlend();
beverage3 = new Soy(beverage3);
beverage3 = new Mocha(beverage3);
beverage3 = new Whip(beverage3);
Console.WriteLine(beverage3.ToString() + " $" + beverage3.Cost());
Console.ReadLine();
}
public void StarbuzzCoffeeTest()
{
var beverage = new Espresso();
Console.WriteLine(beverage.Description + " $ " + beverage.Cost());
Beverage beverage2 = new DarkRoast();
beverage2 = new Mocha(beverage2);
beverage2 = new Mocha(beverage2);
beverage2 = new Whip(beverage2);
Console.WriteLine(beverage2.Description + " $ " + beverage2.Cost());
Beverage beverage3 = new HouseBlend();
beverage3 = new Soy(beverage3);
beverage3 = new Mocha(beverage3);
beverage3 = new Whip(beverage3);
Console.WriteLine(beverage3.Description + " $ " + beverage3.Cost());
}
static void Main(string[] args)
{
Beverage beverage = new Espresso();
Console.WriteLine(beverage.GetDescription() + " $" + beverage.Cost());
Beverage beverageDark = new DarkRoast();
beverageDark = new Mocha(beverageDark);
beverageDark = new Mocha(beverageDark);
beverageDark = new Whip(beverageDark);
Console.WriteLine(beverageDark.GetDescription() + " $" + beverageDark.Cost());
Beverage beverageHouse = new HouseBlend();
beverageHouse = new Mocha(beverageHouse);
beverageHouse = new Soy(beverageHouse);
beverageHouse = new Whip(beverageHouse);
Console.WriteLine(beverageHouse.GetDescription() + " $" + beverageHouse.Cost());
Console.ReadLine();
}
static void Main(string[] args)
{
BaseBeverage beverage = new Espresso();
Console.WriteLine(beverage.Description + " $" + beverage.Cost().ToString("0.##"));
BaseBeverage beverage2 = new DarkRoast();
beverage2 = new Mocha(beverage2);
beverage2 = new Mocha(beverage2);
beverage2 = new Whip(beverage2);
Console.WriteLine(beverage2.Description + " $" + beverage2.Cost().ToString("0.##"));
BaseBeverage beverage3 = new HouseBlend();
beverage3.Size = BaseBeverage.BeverageSize.Venti;
beverage3 = new Soy(beverage3);
beverage3 = new Mocha(beverage3);
beverage3 = new Whip(beverage3);
Console.WriteLine(beverage3.Description + " $" + beverage3.Cost().ToString("0.##"));
Console.ReadKey();
}
public void TestDecoratorPattern()
{
Beverage beverage = new Espresso();
Assert.Equal("Espresso $1.99", beverage.Description + " $" + beverage.Cost());
Beverage beverage2 = new DarkRoast();
beverage2 = new Mocha(beverage2);
beverage2 = new Mocha(beverage2);
beverage2 = new Whip(beverage2);
Assert.Equal("Dark Roast Coffee, Mocha, Mocha, Whip $1.49", beverage2.Description + " $" + beverage2.Cost());
Beverage beverage3 = new HouseBlend();
beverage3 = new Soy(beverage3);
beverage3 = new Mocha(beverage3);
beverage3 = new Whip(beverage3);
Assert.Equal("House Blend Coffee, Soy, Mocha, Whip $1.34", beverage3.Description + " $" + beverage3.Cost());
}
