class PgNote(pwpgsql.Model):
message = peewee.TextField()
published_at = peeweext.fields.DatetimeTZField(null=True)
@val.validates(val.ExclusionValidator('raise'),
val.LengthValidator(min_length=3, max_length=6))
def validate_message(self, value):
if value != 'hello':
raise val.ValidationError
def validate_nothing(self, value):
return 'nothing'
def test_length():
validator = validation.LengthValidator(1, 3)
validator('123')
with pytest.raises(validation.ValidationError):
validator('1234')