public void Wedding_CannotHaveAnEndDateEarlierThanAStartDate()
        {
            var    wedding = new Wedding();
            Action exec    = () => wedding.SetDates(DateTime.Now.AddDays(1), DateTime.Now.AddDays(-1));

            Assert.Throws <ArgumentException>(exec);
        }
        public void Wedding_CannotHaveAStartDateBeforeTodaysDate()
        {
            var    wedding = new Wedding();
            Action exec    = () => wedding.SetDates(DateTime.Now.AddDays(-1), DateTime.Now);

            Assert.Throws <ArgumentException>(exec);
        }