def test_path(self):
        name = u"myvol"

        d = self.create(name)
        # The dataset arrives as state:
        d.addCallback(lambda _: self.flocker_client.synchronize_state())

        d.addCallback(lambda _: self.assertResponseCode(
            b"POST", b"/VolumeDriver.Mount", {u"Name": name}, OK))
        d.addCallback(lambda _:
                      self.flocker_client.list_datasets_configuration())
        d.addCallback(lambda datasets_config:
                      self.assertResult(
                          b"POST", b"/VolumeDriver.Path",
                          {u"Name": name}, OK,
                          {u"Err": u"",
                           u"Mountpoint": u"/flocker/{}".format(
                               datasets_config.datasets.keys()[0])}))
        return d
``/VolumeDriver.Path`` returns the mount path of the given volume if
dataset/ETHPy150Open ClusterHQ/flocker/flocker/dockerplugin/test/test_api.py/APITestsMixin.test_path