def METHOD_NAME(self):
    self.assertHoliday(f"{year}-05-29" for year in range(2000, 2019))
    self.assertHoliday(f"{year}-06-12" for year in range(2019, 2050))
    # in 2019 May 29 is special holiday, so check from 2020
    self.assertNoHoliday(f"{year}-05-29" for year in range(2020, 2050))
    self.assertNoHoliday(f"{year}-06-12" for year in range(2000, 2019))
    self.assertNoHolidayName("Democracy Day", range(1979, 2000))