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47 lines
1.4 KiB
Python
47 lines
1.4 KiB
Python
# © 2015 James R. Barlow: github.com/jbarlow83
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#
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# This file is part of OCRmyPDF.
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#
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# OCRmyPDF is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# OCRmyPDF is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with OCRmyPDF. If not, see <http://www.gnu.org/licenses/>.
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from pathlib import Path
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import pytest
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from PIL import Image
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from ocrmypdf import hocrtransform
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from ocrmypdf.exec import qpdf
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from ocrmypdf.exec.tesseract import HOCR_TEMPLATE
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# pylint: disable=redefined-outer-name
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@pytest.fixture
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def blank_hocr(tmp_path):
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filename = tmp_path / "blank.hocr"
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filename.write_text(HOCR_TEMPLATE) # pylint: disable=E1101
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return filename
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def test_mono_image(blank_hocr, outdir):
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im = Image.new('1', (8, 8), 0)
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for n in range(8):
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im.putpixel((n, n), 1)
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im.save(outdir / 'mono.tif', format='TIFF')
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hocr = hocrtransform.HocrTransform(str(blank_hocr), 300)
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hocr.to_pdf(str(outdir / 'mono.pdf'), imageFileName=str(outdir / 'mono.tif'))
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qpdf.check(str(outdir / 'mono.pdf'))
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