def test_create_success(self):
        volume = self._process_volume(self.V.CREATE, self.S.DESTINATION_STATE)
        self.assertEqual(volume.state, u'available')
Return a list of the vertex ids of all the leaves of this tree. One can 
dataset/ETHPy150Open ClusterHQ/flocker/flocker/node/agents/functional/test_ebs.py/VolumeStateTransitionTests.test_create_success--crossover with--dataset/ETHPy150Open charanpald/APGL/apgl/graph/DictTree.py/DictTree.leaves