How to use the barman.xlog.decode_segment_name function in barman

def test_decode_segment_name(self):
        assert xlog.decode_segment_name(
            '000000000000000000000000') == [0, 0, 0]
        assert xlog.decode_segment_name(
            '000000010000000100000001') == [1, 1, 1]
        assert xlog.decode_segment_name(
            '0000000A0000000A0000000A') == [10, 10, 10]
        assert xlog.decode_segment_name(
            '000000110000001100000011') == [17, 17, 17]
        assert xlog.decode_segment_name(
            '000000000000000200000001') == [0, 2, 1]
        assert xlog.decode_segment_name(
            '000000010000000000000002') == [1, 0, 2]
        assert xlog.decode_segment_name(
            '000000020000000100000000') == [2, 1, 0]
        assert xlog.decode_segment_name(
            '00000001000000000000000A.00000020.backup') == [1, 0, 10]
        assert xlog.decode_segment_name(
            '00000001.history') == [1, None, None]
        with pytest.raises(barman.exceptions.BadXlogSegmentName):
            xlog.decode_segment_name('00000000000000000000000')
        with pytest.raises(barman.exceptions.BadXlogSegmentName):

def test_decode_segment_name(self):
        assert xlog.decode_segment_name(
            '000000000000000000000000') == [0, 0, 0]
        assert xlog.decode_segment_name(
            '000000010000000100000001') == [1, 1, 1]
        assert xlog.decode_segment_name(
            '0000000A0000000A0000000A') == [10, 10, 10]
        assert xlog.decode_segment_name(
            '000000110000001100000011') == [17, 17, 17]
        assert xlog.decode_segment_name(
            '000000000000000200000001') == [0, 2, 1]
        assert xlog.decode_segment_name(
            '000000010000000000000002') == [1, 0, 2]
        assert xlog.decode_segment_name(
            '000000020000000100000000') == [2, 1, 0]
        assert xlog.decode_segment_name(
            '00000001000000000000000A.00000020.backup') == [1, 0, 10]
        assert xlog.decode_segment_name(
            '00000001.history') == [1, None, None]
        with pytest.raises(barman.exceptions.BadXlogSegmentName):
            xlog.decode_segment_name('00000000000000000000000')
        with pytest.raises(barman.exceptions.BadXlogSegmentName):
            xlog.decode_segment_name('0000000000000000000000000')
        with pytest.raises(barman.exceptions.BadXlogSegmentName):
            xlog.decode_segment_name('000000000000X00000000000')

def test_decode_segment_name(self):
        assert xlog.decode_segment_name(
            '000000000000000000000000') == [0, 0, 0]
        assert xlog.decode_segment_name(
            '000000010000000100000001') == [1, 1, 1]
        assert xlog.decode_segment_name(
            '0000000A0000000A0000000A') == [10, 10, 10]
        assert xlog.decode_segment_name(
            '000000110000001100000011') == [17, 17, 17]
        assert xlog.decode_segment_name(
            '000000000000000200000001') == [0, 2, 1]
        assert xlog.decode_segment_name(
            '000000010000000000000002') == [1, 0, 2]
        assert xlog.decode_segment_name(
            '000000020000000100000000') == [2, 1, 0]
        assert xlog.decode_segment_name(
            '00000001000000000000000A.00000020.backup') == [1, 0, 10]
        assert xlog.decode_segment_name(
            '00000001.history') == [1, None, None]
        with pytest.raises(barman.exceptions.BadXlogSegmentName):
            xlog.decode_segment_name('00000000000000000000000')
        with pytest.raises(barman.exceptions.BadXlogSegmentName):
            xlog.decode_segment_name('0000000000000000000000000')
        with pytest.raises(barman.exceptions.BadXlogSegmentName):
            xlog.decode_segment_name('000000000000X00000000000')

def get_required_xlog_files(self, backup, target_tli=None,
                                target_time=None, target_xid=None):
        """
        Get the xlog files required for a recovery
        """
        begin = backup.begin_wal
        end = backup.end_wal
        # If timeline isn't specified, assume it is the same timeline
        # of the backup
        if not target_tli:
            target_tli, _, _ = xlog.decode_segment_name(end)
        with self.xlogdb() as fxlogdb:
            for line in fxlogdb:
                wal_info = WalFileInfo.from_xlogdb_line(line)
                # Handle .history files: add all of them to the output,
                # regardless of their age
                if xlog.is_history_file(wal_info.name):
                    yield wal_info
                    continue
                if wal_info.name < begin:
                    continue
                tli, _, _ = xlog.decode_segment_name(wal_info.name)
                if tli > target_tli:
                    continue
                yield wal_info
                if wal_info.name > end:
                    end = wal_info.name

def get_wal_until_next_backup(self, backup, include_history=False):
        """
        Get the xlog files between backup and the next

        :param BackupInfo backup: a backup object, the starting point
            to retrieve WALs
        :param bool include_history: option for the inclusion of
            include_history files into the output
        """
        begin = backup.begin_wal
        next_end = None
        if self.get_next_backup(backup.backup_id):
            next_end = self.get_next_backup(backup.backup_id).end_wal
        backup_tli, _, _ = xlog.decode_segment_name(begin)

        with self.xlogdb() as fxlogdb:
            for line in fxlogdb:
                wal_info = WalFileInfo.from_xlogdb_line(line)
                # Handle .history files: add all of them to the output,
                # regardless of their age, if requested (the 'include_history'
                # parameter is True)
                if xlog.is_history_file(wal_info.name):
                    if include_history:
                        yield wal_info
                    continue
                if wal_info.name < begin:
                    continue
                tli, _, _ = xlog.decode_segment_name(wal_info.name)
                if tli > backup_tli:
                    continue

wal_info = WalFileInfo.from_xlogdb_line(line)
                    if not xlog.is_any_xlog_file(wal_info.name):
                        output.error(
                            "invalid WAL segment name %r\n"
                            "HINT: Please run \"barman rebuild-xlogdb %s\" "
                            "to solve this issue",
                            wal_info.name, self.config.name)
                        continue

                    # Keeps the WAL segment if it is a history file
                    keep = xlog.is_history_file(wal_info.name)

                    # Keeps the WAL segment if its timeline is in
                    # `timelines_to_protect`
                    if timelines_to_protect:
                        tli, _, _ = xlog.decode_segment_name(wal_info.name)
                        keep |= tli in timelines_to_protect

                    # Keeps the WAL segment if it is a newer
                    # than the given backup (the first available)
                    if backup_info and backup_info.begin_wal is not None:
                        keep |= wal_info.name >= backup_info.begin_wal

                    # If the file has to be kept write it in the new xlogdb
                    # otherwise delete it  and record it in the removed list
                    if keep:
                        fxlogdb_new.write(wal_info.to_xlogdb_line())
                    else:
                        self.delete_wal(wal_info)
                        removed.append(wal_info.name)
                fxlogdb_new.flush()
                os.fsync(fxlogdb_new.fileno())

except StopIteration:
                    # No more item in wal_peek_list
                    break

                wal_peek_file = self.get_wal_full_path(wal_peek_name)

                # If the next WAL file is found, output the name
                # and continue to the next one
                if os.path.exists(wal_peek_file):
                    count += 1
                    output.info(wal_peek_name, log=False)
                    continue

                # If ``wal_peek_file`` doesn't exist, check if we need to
                # look in the following segment
                tli, log, seg = xlog.decode_segment_name(wal_peek_name)

                # If `seg` is not a power of two, it is not possible that we
                # are at the end of a WAL group, so we are done
                if not is_power_of_two(seg):
                    break

                # This is a possible WAL group boundary, let's try the
                # following group
                seg = 0
                log += 1

                # Install a new generator from the start of the next segment.
                # If the file doesn't exists we will terminate because
                # zero is not a power of two
                wal_peek_name = xlog.encode_segment_name(tli, log, seg)
                wal_peek_list = xlog.generate_segment_names(wal_peek_name)

next_end = self.get_next_backup(backup.backup_id).end_wal
        backup_tli, _, _ = xlog.decode_segment_name(begin)

        with self.xlogdb() as fxlogdb:
            for line in fxlogdb:
                wal_info = WalFileInfo.from_xlogdb_line(line)
                # Handle .history files: add all of them to the output,
                # regardless of their age, if requested (the 'include_history'
                # parameter is True)
                if xlog.is_history_file(wal_info.name):
                    if include_history:
                        yield wal_info
                    continue
                if wal_info.name < begin:
                    continue
                tli, _, _ = xlog.decode_segment_name(wal_info.name)
                if tli > backup_tli:
                    continue
                if not xlog.is_wal_file(wal_info.name):
                    continue
                if next_end and wal_info.name > next_end:
                    break
                yield wal_info

end = backup.end_wal
        # If timeline isn't specified, assume it is the same timeline
        # of the backup
        if not target_tli:
            target_tli, _, _ = xlog.decode_segment_name(end)
        with self.xlogdb() as fxlogdb:
            for line in fxlogdb:
                wal_info = WalFileInfo.from_xlogdb_line(line)
                # Handle .history files: add all of them to the output,
                # regardless of their age
                if xlog.is_history_file(wal_info.name):
                    yield wal_info
                    continue
                if wal_info.name < begin:
                    continue
                tli, _, _ = xlog.decode_segment_name(wal_info.name)
                if tli > target_tli:
                    continue
                yield wal_info
                if wal_info.name > end:
                    end = wal_info.name
                    if target_time and target_time < wal_info.time:
                        break
            # return all the remaining history files
            for line in fxlogdb:
                wal_info = WalFileInfo.from_xlogdb_line(line)
                if xlog.is_history_file(wal_info.name):
                    yield wal_info