'``attach_volume`` raises ``UnknownVolume`` when called with the
``blockdevice_id`` of a volume which has been destroyed.'

def test_attach_destroyed_volume(self):

    volume = self._destroyed_volume()
    exception = self.assertRaises(UnknownVolume, self.api.attach_volume, volume.blockdevice_id, attach_to=self.this_node)
    self.assertEqual(exception.args, (volume.blockdevice_id,))
