def test_to_python_int_values(self):
self.assertEqual(
ULIDField().to_python(0),
ulid.parse('00000000-0000-0000-0000-000000000000')
)
# Works for integers less than 128 bits.
self.assertEqual(
ULIDField().to_python((2 ** 128) - 1),
ulid.parse('ffffffff-ffff-ffff-ffff-ffffffffffff')
)
class ULIDModel(models.Model):
field = ULIDField(default=None, null=False)
class PrimaryKeyULIDModel(models.Model):
id = ULIDField(primary_key=True, default=ulid.new)
class NullableULIDModel(models.Model):
field = ULIDField(blank=True, null=True)
def test_to_python_int_too_large(self):
# Fails for integers larger than 128 bits.
with self.assertRaises(exceptions.ValidationError):
ULIDField().to_python(2 ** 128)
def test_to_python(self):
self.assertIsNone(ULIDField().to_python(None))
def test_deconstruct(self):
field = ULIDField()
name, path, args, kwargs = field.deconstruct()
self.assertEqual(kwargs, {})
def test_ulid_instance_ok(self):
field = ULIDField()
field.clean(ulid.new(), None) # no error
def test_invalid_ulid(self):
field = ULIDField()
with self.assertRaises(exceptions.ValidationError) as cm:
field.clean('550e8400', None)
self.assertEqual(cm.exception.code, 'invalid')
self.assertEqual(cm.exception.message % cm.exception.params, "'550e8400' is not a valid ULID.")