def test_container_registration(self):
self.mock_container.find_by_name.return_value = {'foo-bar': self.mock_container}
container_alias = 'foobar'
container_ship = ContainerShip(address='http://127.0.0.1:2376', **{})
container_name = container_ship._container_registration(alias=container_alias)
self.assertEqual(container_name, '{0}-01'.format(container_alias))
