def METHOD_NAME(self):
    for year in range(1966, 2050):
        self.assertHoliday(f"{year}-12-25", f"{year}-12-26")
    dt = (
        "2010-12-27",
        "2011-12-27",
        "2016-12-27",
        "2021-12-27",
        "2022-12-27",
    )
    self.assertHoliday(dt)
    self.assertNoNonObservedHoliday(dt)
    dt = ("2020-12-28", "2026-12-28", "2037-12-28")
    self.assertHolidayName("Boxing Day Holiday", dt)
    self.assertNoNonObservedHoliday(dt)