def METHOD_NAME(self):
    self.assertIn(date(2022, 1, 1), self.holidays)
    self.assertIn(date(2022, 2, 1), self.holidays)
    self.assertIn(date(2022, 2, 2), self.holidays)
    self.assertIn(date(2022, 4, 15), self.holidays)
    self.assertIn(date(2022, 5, 1), self.holidays)
    self.assertIn(date(2022, 5, 2), self.holidays)
    self.assertIn(date(2022, 5, 3), self.holidays)
    self.assertIn(date(2022, 5, 15), self.holidays)
    self.assertIn(date(2022, 5, 16), self.holidays)
    self.assertIn(date(2022, 7, 10), self.holidays)
    self.assertIn(date(2022, 7, 11), self.holidays)
    self.assertIn(date(2022, 8, 9), self.holidays)
    self.assertIn(date(2022, 10, 24), self.holidays)
    self.assertIn(date(2022, 12, 25), self.holidays)
    self.assertIn(date(2022, 12, 26), self.holidays)
    # 2022: total holidays (11 + 4 falling on a Sunday)
    self.assertEqual(len(Singapore(years=[2022])), 11 + 4)