def test_return_attachments_url_for_images_in_get_sample_url(self, _reverse):
instance = Mock(spec=Attachment())
instance.attachment_type = instance.IMAGE
view_name = "some_view_name"
url = Attachment.get_attachment_url(instance, view_name)
_reverse.assert_called_once_with("attachments:%s" % view_name, kwargs={'identifier': instance.pk})
self.assertEqual(_reverse.return_value, url)
