static void Main(string[] args)
{
Mathematic mathematic = new Mathematic();
CachingDecorator caching = new CachingDecorator(mathematic);
LoggingDecorator logging = new LoggingDecorator(caching);
logging.Operation();
Console.ReadLine();
}
public void Apply_NotCached()
{
var internalBehaviorMock = new Mock <IModifyBehavior>();
internalBehaviorMock.Setup(x => x.Apply(It.IsAny <string>())).Returns <string>(y => y);
const string someText = "someText";
var target = new CachingDecorator(internalBehaviorMock.Object);
target.Apply(someText);
internalBehaviorMock.Verify(x => x.Apply(It.IsAny <string>()), Times.Once());
}
