public void When_DateIs15Khordad_Expect_DateHolyDayIsTrue()
        {
            var d1  = new PersianDateTime(1397, 3, 14);
            var str = d1.GetDateInformation();

            Assert.True(d1.IsHoliDay);
            //var x2 = PersianDateTime.GetLongHoliDays(1398);
        }