def test_get_dangling_volumes(mock_client): count = 4 mock_client.volumes.return_value = { 'Volumes': [mock.Mock() for _ in range(count)] } with mock.patch('docker_custodian.docker_gc.log', autospec=True) as mock_log: volumes = docker_gc.get_dangling_volumes(mock_client) assert volumes == mock_client.volumes.return_value['Volumes'] mock_log.info.assert_called_with("Found %s dangling volumes", count)