public void Set_MonthCycle_ReturnTrue(int startTime, int endTime)
        {
            var result = CronExpressionHelper.SetMonthCycle(startTime, endTime);

            var instant = GetInstant;

            instant[4] = $"{startTime}-{endTime}";

            Assert.Equal(string.Join(" ", instant), result);
        }
        public void Set_WrongMonthCycle_ReturnFalse(int startTime, int endTime)
        {
            Action action = () => CronExpressionHelper.SetMonthCycle(startTime, endTime);

            Assert.Throws <Exception>(action);
        }