@require_cluster(1)
    def test_unregistered_volume(self, cluster):
        api = get_backend_api(cluster.cluster_uuid)

        # Create a volume for a dataset
        dataset_id = uuid4()
        volume = api.create_volume(dataset_id, size=get_default_volume_size())

        # Then create the coresponding dataset.
        wait_for_dataset = create_dataset(self, cluster, dataset_id=dataset_id)

        def check_volumes(dataset):
            new_volumes = api.list_volumes()
            # That volume should be the only dataset in the cluster.
            # Clear `.attached_to` on the new volume, since we expect it to be
            # attached.
            self.assertThat(
                new_volumes,
                MatchesListwise([
                    AfterPreprocessing(
                        lambda new_volume: new_volume.set('attached_to', None),
                        Equals(volume)
                    ),
                ])
            )
        wait_for_dataset.addCallback(check_volumes)
        return wait_for_dataset
This command creates/edits/queries the tree lister control. The optional argument is the name of the control.
dataset/ETHPy150Open ClusterHQ/flocker/flocker/acceptance/endtoend/test_dataset.py/DatasetAPITests.test_unregistered_volume--crossover with--dataset/ETHPy150Open CountZer0/PipelineConstructionSet/python/maya/site-packages/pymel-1.0.5/extras/completion/py/pymel/core/windows.py/treeLister