public void BShouldPerformAdditionalPartBWork()
{
IComponent comp = new Component("Common Part");
DecoratorBase B = new DecoratorB("Part B", comp);
B.Operation().Should().StartWith("Hmm Operated by Part B");
B.Operation().Should().EndWith("Operated by Common Part.");
}
public static void Main(string[] args)
{
IComponent decoratorA = new DecoratorA(new Component());
IComponent decoratorB = new DecoratorB(decoratorA);
decoratorA.Operation();
Console.WriteLine();
decoratorB.Operation();
}
public void DecoratorPattern_TestIfDecoratedResultIsValid()
{
// Arrange
var component = new Component(new DecorationResult());
var decoratorA = new DecoratorA(component);
var decoratorB = new DecoratorB(decoratorA);
// Act
var result = decoratorB.Operation();
// Assert
const int excpectedResult = 12;
Assert.AreEqual(result.Force, excpectedResult);
}
public void DecoratorPatternCodeTest()
{
// 在原来的基础上增加功能
Console.WriteLine("在原来的基础上增加功能");
ConcreteComponent concreteComponent = new ConcreteComponent();
DecoratorA decoratorA = new DecoratorA(concreteComponent);
DecoratorB decoratorB = new DecoratorB(decoratorA);
decoratorB.Operation();
Console.WriteLine("-------------------------------------");
// 覆盖掉原来的功能
Console.WriteLine("覆盖掉原来的功能");
CurrComponent currComponent = new CurrComponent();
currComponent.Operation();
}
public void Testing()
{
var component = new Component();
var componentTest = component.Operation();
var decoratorA = new DecoratorA(component);
var decoratorB = new DecoratorB(component);
var decoratorATest = decoratorA.Operation();
var decoratorBTest = decoratorB.Operation();
var decoratorBA = new DecoratorB(new DecoratorA(component));
var decoratorAB = new DecoratorA(new DecoratorB(component));
var decoratorBATest = decoratorBA.Operation();
var decoratorABTest = decoratorAB.Operation();
var result = decoratorB.AddedState + decoratorB.AddedBehavior();
}