Inheritance: Controller
        public void About()
        {
            // Arrange
              HomeController controller = new HomeController();

              // Act
              ViewResult result = controller.About() as ViewResult;

              // Assert
              Assert.IsNotNull(result);
        }
        public void Index()
        {
            // Arrange
              HomeController controller = new HomeController();

              // Act
              ViewResult result = controller.Index() as ViewResult;

              // Assert
              ViewDataDictionary viewData = result.ViewData;
              Assert.AreEqual("Welcome to ASP.NET MVC!", viewData["Message"]);
        }