def test_field_can_be_set_default(self):
default = object()
instance = create_instance(Field(default=default))
instance.attr = 1234
instance.attr = default
self.assertEqual(default, instance.attr)
self.assertFalse(hasattr(instance, '_attr'))
def test_field_can_be_set_default(self):
default = object()
instance = create_instance(Field(default=default))
instance.attr = 1234
instance.attr = default
assert default == instance.attr
assert not hasattr(instance, "_attr")
def test_field_can_be_reassigned(self):
instance = create_instance(Field())
instance.attr = 1234
instance.attr = 5678
self.assertEqual(5678, instance.attr)
def test_field_assigment_and_retrival(self):
instance = create_instance(Field())
instance.attr = 1234
self.assertEqual(1234, instance.attr)
def test_field_does_not_store_default(self):
instance = create_instance(Field())
self.assertFalse(hasattr(instance, '_attr'))
def test_field_knows_its_name(self):
instance = create_instance(Field())
assert "attr" == instance.__class__.attr._name
def test_default_respects_type_check(self):
with self.assertRaises(TypeError):
create_instance(Field(type=int, default='123'))
def test_type_checking(self):
instance = create_instance(Field(type=set))
instance.attr = set()
with self.assertRaises(TypeError):
instance.attr = 1234
def test_field_can_be_set_to_none(self):
instance = create_instance(Field())
instance.attr = 1234
instance.attr = None
assert instance.attr is None
assert not hasattr(instance, "_attr")
def test_field_can_be_reassigned(self):
instance = create_instance(Field())
instance.attr = 1234
instance.attr = 5678
assert 5678 == instance.attr
def test_field_can_be_deleted(self):
instance = create_instance(Field())
instance.attr = 1234
del instance.attr
assert instance.attr is None
assert not hasattr(instance, "_attr")
def test_field_assigment_and_retrival(self):
instance = create_instance(Field())
instance.attr = 1234
assert 1234 == instance.attr
def test_field_does_not_store_default(self):
instance = create_instance(Field())
assert not hasattr(instance, "_attr")
def test_field_has_none_as_default(self):
instance = create_instance(Field())
assert instance.attr is None
def test_field_can_be_deleted(self):
instance = create_instance(Field())
instance.attr = 1234
del instance.attr
self.assertEqual(None, instance.attr)
self.assertFalse(hasattr(instance, '_attr'))
def test_default_handling(self):
instance = create_instance(Field(default=1234))
assert 1234 == instance.attr
def test_field_can_be_set_to_none(self):
instance = create_instance(Field())
instance.attr = 1234
instance.attr = None
self.assertEqual(None, instance.attr)
self.assertFalse(hasattr(instance, '_attr'))
def test_raw_field_accesible_through_class(self):
field = Field()
instance = create_instance(field)
self.assertEqual(field, instance.__class__.attr)
def test_default_handling(self):
instance = create_instance(Field(default=1234))
self.assertEqual(1234, instance.attr)
def test_field_knows_its_name(self):
instance = create_instance(Field())
self.assertEqual('attr', instance.__class__.attr._name)
def test_choices_checking(self):
instance = create_instance(Field(choices=(1, 2, 3)))
instance.attr = 1
with self.assertRaises(TypeError):
instance.attr = 4
def test_field_has_none_as_default(self):
instance = create_instance(Field())
self.assertIsNone(instance.attr)
def test_default_respects_choices_check(self):
with self.assertRaises(TypeError):
create_instance(Field(choices=(1, 2, 3), default=5))
def test_raw_field_accesible_through_class(self):
field = Field()
instance = create_instance(field)
assert field == instance.__class__.attr