public void TestRule(string rule, int pos, bool result)
{
var ticketValidator = new TicketValidator();
ticketValidator.AddRule("class", 0, 1, 4, 19);
ticketValidator.AddRule("row", 0, 5, 8, 19);
ticketValidator.AddRule("seat", 0, 13, 16, 19);
ticketValidator.IsTicketValid(new int[] { 3, 9, 18 });
ticketValidator.IsTicketValid(new int[] { 15, 1, 5 });
ticketValidator.IsTicketValid(new int[] { 5, 14, 9 });
ticketValidator.TestRule(rule, pos).ShouldBe(result, $"{rule} {pos}");
}