public void CheckValidUserName()
        {
            FeedbackValidator feedbackValidator = new FeedbackValidator();

            try
            {
                feedbackValidator.CheckUserName("Mazon");
            }
            catch (Exception)
            {
                Assert.IsTrue(false, "Username should be Valid");
            }
        }
        public void CheckUserNameWithSpecialChar()
        {
            FeedbackValidator feedbackValidator = new FeedbackValidator();

            feedbackValidator.CheckUserName("Mazon!");
        }
        public void CheckUserNameWithNumbers()
        {
            FeedbackValidator feedbackValidator = new FeedbackValidator();

            feedbackValidator.CheckUserName("Mazon1");
        }
        public void CheckWhiteSpaceUserName()
        {
            FeedbackValidator feedbackValidator = new FeedbackValidator();

            feedbackValidator.CheckUserName("    ");
        }
        public void CheckEmptyUserName()
        {
            FeedbackValidator feedbackValidator = new FeedbackValidator();

            feedbackValidator.CheckUserName("");
        }
        public void CheckUserNameThatIsTooLong()
        {
            FeedbackValidator feedbackValidator = new FeedbackValidator();

            feedbackValidator.CheckUserName("MazonMazonMazonMazonM");
        }