def testComputeEndByteNoChunks(self):
    total_size = 100
    download = transfer.Download.FromStream(
        six.StringIO(), chunksize=10, total_size=total_size)
    for end in (None, 1000):
        self.assertEqual(
            total_size - 1,
            download._Download__ComputeEndByte(0, end=end,
                                               use_chunks=False),
            msg='Failed on end={0}'.format(end))