def test_invalid_max_length_zero(self):
with self.assertRaises(MaxLengthError) as err:
CharField(max_length=0)
self.assertEqual(
str(err.exception),
"On CharFields max_length must be set and it must be a positive integer"
)
class Car(DbObject):
wheels = IntegerField(default=4)
seats = IntegerField(default=5)
manufacturer = CharField(max_length=120)
description = TextField()
motorcycle = BooleanField(default=False)
built = DateTimeField()
driver = ForeignKey(Driver)
seller = ForeignKey(Seller)
class Seller(DbObject):
name = CharField(max_length=10)
class Driver(DbObject):
name = CharField(max_length=10)
def test_valid_max_length_small_value(self):
self.assertIsInstance(CharField(max_length=1), CharField)