public void GivenValidDateShouldFormatDate()
        {
            var dateValidator = new DateValidator();
            var formattedDate = dateValidator.FormatDate("01, March", "31, March");

            Assert.Equal("01 March - 31 March", formattedDate);
        }
        public void GivenInValidDateShouldThrowException(string startDate, string endDate)
        {
            var dateValidator = new DateValidator();

            Assert.Throws <Exception>(() => dateValidator.FormatDate(startDate, endDate));
        }