public void NegTest1()
{
System.Globalization.Calendar tbc = new ThaiBuddhistCalendar();
Random rand = new Random(-55);
int year = rand.Next(tbc.MinSupportedDateTime.Year + 543, tbc.MaxSupportedDateTime.Year + 544);
int era = 2;
Assert.Throws<ArgumentOutOfRangeException>(() =>
{
tbc.GetMonthsInYear(year, era);
});
}