'``destroy_volume`` raises ``UnknownVolume`` if the supplied
``blockdevice_id`` was associated with a volume but that volume has
been destroyed.'

def test_destroy_destroyed_volume(self):

    volume = self._destroyed_volume()
    exception = self.assertRaises(UnknownVolume, self.api.destroy_volume, blockdevice_id=volume.blockdevice_id)
    self.assertEqual(exception.args, (volume.blockdevice_id,))
