public void Index()
        {
            // Arrange
            HomeController controller = new HomeController();

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

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

            string s = null;

            //IsNullOrEmpty
            Assert.AreEqual(true, "".IsNullOrEmpty());
            Assert.AreEqual(true, string.Empty.IsNullOrEmpty());
            Assert.AreEqual(true, s.IsNullOrEmpty());
            Assert.AreEqual(false, " ".IsNullOrEmpty());
            Assert.AreEqual(false, "null".IsNullOrEmpty());
            Assert.AreEqual(false, "a".IsNullOrEmpty());
        }