def test_list_images(self):
image_service = self.mock_image.return_value
images.ListImages(self.context).run()
image_service.list_images.assert_called_once_with()
def test_list_images(self, mock_list_images__list_images):
images.ListImages(self.context).run()
mock_list_images__list_images.assert_called_once_with()