OCRmyPDF/tests/test_graft.py

# © 2019 James R. Barlow: github.com/jbarlow83
#
# This file is part of OCRmyPDF.
#
# OCRmyPDF is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# OCRmyPDF is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with OCRmyPDF.  If not, see <http://www.gnu.org/licenses/>.

from unittest.mock import patch

import pikepdf
import pytest

import ocrmypdf


def test_no_glyphless_graft(resources, outdir):
    with pikepdf.open(resources / 'francais.pdf') as pdf, pikepdf.open(
        resources / 'aspect.pdf'
    ) as pdf_aspect, pikepdf.open(resources / 'cmyk.pdf') as pdf_cmyk:
        pdf.pages.extend(pdf_aspect.pages)
        pdf.pages.extend(pdf_cmyk.pages)
        pdf.save(outdir / 'test.pdf')

    with patch('ocrmypdf._graft.MAX_REPLACE_PAGES', 2):
        ocrmypdf.ocr(
            outdir / 'test.pdf',
            outdir / 'out.pdf',
            deskew=True,
            tesseract_timeout=0,
            force_ocr=True,
        )
    # This test needs asserts


def test_links(resources, outpdf):
    ocrmypdf.ocr(
        resources / 'link.pdf', outpdf, redo_ocr=True, oversample=200, output_type='pdf'
    )
    with pikepdf.open(outpdf) as pdf:
        p1 = pdf.pages[0]
        p2 = pdf.pages[1]
        assert p1.Annots[0].A.D[0].objgen == p2.objgen
        assert p2.Annots[0].A.D[0].objgen == p1.objgen