def test_to_internal_non_existent_id(self):
"""Tests an id of a non-existent object raises an exception."""
model = MagicMock()
model.objects().all.get.return_value = ObjectDoesNotExist
field = NestedRelatedField(model)
with pytest.raises(ValidationError):
field.to_internal_value({})
def test_to_internal_str(self):
"""Tests that model instances are returned for a dict with an 'id' key."""
model = MagicMock()
field = NestedRelatedField(model)
uuid_ = uuid4()
assert field.to_internal_value(str(uuid_))
assert model.objects.all().get.call_args_list == [call(pk=uuid_)]
def test_to_internal_uuid(self):
"""Tests that model instances are returned for a UUID."""
model = Mock()
field = NestedRelatedField(model)
uuid_ = uuid4()
assert field.to_internal_value(uuid_)
assert model.objects.all().get.call_args_list == [call(pk=uuid_)]
def test_to_internal_wrong_type(self):
"""Tests that a non-dict value raises an exception."""
model = MagicMock()
field = NestedRelatedField(model)
with pytest.raises(ValidationError):
field.to_internal_value([])
def test_to_internal_no_id(self):
"""Tests that a dict without an id raises an exception."""
model = MagicMock()
field = NestedRelatedField(model)
with pytest.raises(ValidationError):
field.to_internal_value({})
def test_to_internal_invalid_id(self):
"""Tests that a dict with an invalid UUID raises an exception."""
model = MagicMock()
field = NestedRelatedField(model)
with pytest.raises(ValidationError):
field.to_internal_value({'id': 'xxx'})