public void CoffeeWithMilkAndSprinkles()
{
var cofee = new Coffee();
var coffeeWithMilkAndSprinkles = new WithMilkDecorator(new WithSprinklesDecorator(cofee));
Assert.AreEqual(1.7, coffeeWithMilkAndSprinkles.Cost);
Assert.AreEqual(3, coffeeWithMilkAndSprinkles.Contents.Count);
CollectionAssert.Contains(coffeeWithMilkAndSprinkles.Contents, Ingredients.Coffee);
CollectionAssert.Contains(coffeeWithMilkAndSprinkles.Contents, Ingredients.Milk);
CollectionAssert.Contains(coffeeWithMilkAndSprinkles.Contents, Ingredients.Sprinkles);
}
public void CoffeeWithMilk()
{
var coffee = new Coffee();
var coffeeWithMilk = new WithMilkDecorator(coffee);
// Coffee
Assert.AreEqual(1, coffee.Cost);
Assert.AreEqual(1, coffee.Contents.Count);
Assert.AreEqual(Ingredients.Coffee, coffee.Contents.Single());
// CoffeeWithMilk
Assert.AreEqual(1.5, coffeeWithMilk.Cost);
Assert.AreEqual(2, coffeeWithMilk.Contents.Count);
CollectionAssert.Contains(coffeeWithMilk.Contents, Ingredients.Coffee);
CollectionAssert.Contains(coffeeWithMilk.Contents, Ingredients.Milk);
}
public void CoffeeWithDoubleMilk()
{
var coffee = new Coffee();
var coffeeWithDoubleMilk = new WithMilkDecorator(new WithMilkDecorator(coffee));
// Coffee
Assert.AreEqual(1, coffee.Cost);
Assert.AreEqual(1, coffee.Contents.Count);
Assert.AreEqual(Ingredients.Coffee, coffee.Contents.Single());
// CoffeeWithDoubleMilk
Assert.AreEqual(2, coffeeWithDoubleMilk.Cost);
Assert.AreEqual(3, coffeeWithDoubleMilk.Contents.Count);
CollectionAssert.AreEquivalent(
new[] { Ingredients.Coffee, Ingredients.Milk, Ingredients.Milk },
coffeeWithDoubleMilk.Contents);
}
