def METHOD_NAME(self):
    # holidays estimated using library hijri-converter
    # <= 1968 holidays
    self.assertIn(date(1968, 1, 2), self.holidays)
    # > 2022
    self.assertIn(date(2050, 6, 20), self.holidays)  # Hari Raya Puasa
    self.assertIn(date(2050, 8, 28), self.holidays)  # Hari Raya Haji
    # twice in a Gregorian calendar year
    self.assertIn(date(2006, 1, 10), self.holidays)
    self.assertIn(date(2006, 12, 31), self.holidays)
    # special rare case (Hari Raya Haji from 2006)
    self.assertIn(date(2007, 1, 2), self.holidays)