public void PreviousTradingDayForTradingDay()
{
var tradingCalendar = new TradingCalendar(Guid.NewGuid());
var nonTradingDays = new NonTradingDay[] {
new NonTradingDay(new Date(2019, 01, 01), "New Years Day"),
new NonTradingDay(new Date(2019, 12, 25), "Christmas Day")
};
var @event = new NonTradingDaysSetEvent(tradingCalendar.Id, 0, 2019, nonTradingDays);
tradingCalendar.ApplyEvents(new Event[] { @event });
tradingCalendar.PreviousTradingDay(new Date(2019, 11, 08)).Should().Be(new Date(2019, 11, 08));
}