@Override
    public Checksum compute(final InputStream in, final TransferStatus status) throws BackgroundException {
        return this.compute(status.getLength(), super.digest("SHA-256", this.normalize(in, status), status));
    }
@Test
    public void testCompute() throws Exception {
        assertEquals("07_pjo8c6JFhSFRWmiD19FCNarQCW4crezqCgu91sSo",
                new ChunkListSHA256ChecksumCompute().compute(new NullInputStream(0), new TransferStatus().withLength(0L)).hash);
    }