def test_person_validate_nirs(nir, expected):
person = Person(
first_name='a',
last_name='b',
nir=nir,
birth_date='1969-01-01',
email="*****@*****.**",
)
if not expected:
person.full_clean()
assert person.nir == str(nir)
else:
with pytest.raises(ValidationError) as raised:
person.full_clean()
assert len(raised.value.error_dict['nir']) == expected
