def test_get_device_path_device(self):
        new_volume = self.api.create_volume(
            dataset_id=uuid4(),
            size=self.minimum_allocatable_size
        )
        attached_volume = self.api.attach_volume(
            new_volume.blockdevice_id,
            attach_to=self.this_node,
        )
        device_path = self.api.get_device_path(attached_volume.blockdevice_id)
        self.assertTrue(
            device_path.isBlockDevice(),
            u"Not a block device. Path: {!r}".format(device_path)
        )
The description of the command can be found here: http://emma.sourceforge.net/reference/ch02s04s03.html
dataset/ETHPy150Open ClusterHQ/flocker/flocker/node/agents/testtools/_blockdevice.py/IBlockDeviceAPITestsMixin.test_get_device_path_device--crossover with--dataset/ETHPy150Open zyrikby/BBoxTester/BBoxTester/interfaces/emma_interface.py/EmmaInterface.report