public void testSetUnknown()
{
int day = 0;
string month = "";
int year = 0;
bool yearBC = false;
GEDCOMDate instance = new GEDCOMDate(null, null, "", "");
instance.SetUnknown(day, month, year, yearBC);
Assert.AreEqual(GEDCOMCalendar.dcUnknown, instance.DateCalendar);
}