def test_zero(self):
field = IntegerField()
self.assertEqual('0', field.localize(0))
def test_repeated_localization(self):
field = IntegerField(repeated=True)
self.assertListEqual(['1,000', '2,222,222', '3'], field.localize([1000, 2222222, 3]))
self.assertListEqual([''], field.localize([None]))
