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https://github.com/ocrmypdf/OCRmyPDF.git
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93 lines
2.8 KiB
Python
93 lines
2.8 KiB
Python
# © 2019 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 unittest.mock import patch
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import img2pdf
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import pikepdf
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import pytest
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from PIL import Image
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import ocrmypdf
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check_ocrmypdf = pytest.helpers.check_ocrmypdf
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run_ocrmypdf_api = pytest.helpers.run_ocrmypdf_api
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@pytest.fixture
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def baiona(resources):
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return Image.open(resources / 'baiona_gray.png')
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def test_image_to_pdf(spoof_tesseract_noop, resources, outpdf):
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check_ocrmypdf(
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resources / 'crom.png', outpdf, '--image-dpi', '200', env=spoof_tesseract_noop
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)
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def test_no_dpi_info(caplog, baiona, outdir, no_outpdf):
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im = baiona
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assert 'dpi' not in im.info
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input_image = outdir / 'baiona_no_dpi.png'
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im.save(input_image)
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rc = run_ocrmypdf_api(input_image, no_outpdf)
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assert rc == ocrmypdf.ExitCode.input_file
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assert "--image-dpi" in caplog.text
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def test_dpi_not_credible(caplog, baiona, outdir, no_outpdf):
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im = baiona
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assert 'dpi' not in im.info
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input_image = outdir / 'baiona_no_dpi.png'
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im.save(input_image, dpi=(30, 30))
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rc = run_ocrmypdf_api(input_image, no_outpdf)
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assert rc == ocrmypdf.ExitCode.input_file
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assert "not credible" in caplog.text
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def test_cmyk_no_icc(caplog, resources, no_outpdf):
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rc = run_ocrmypdf_api(resources / 'baiona_cmyk.jpg', no_outpdf)
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assert rc == ocrmypdf.ExitCode.input_file
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assert "no ICC profile" in caplog.text
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def test_img2pdf_fails(resources, no_outpdf):
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with patch(
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'ocrmypdf._pipeline.img2pdf.convert', side_effect=img2pdf.ImageOpenError()
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):
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rc = run_ocrmypdf_api(
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resources / 'baiona_gray.png', no_outpdf, '--image-dpi', '200'
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)
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assert rc == ocrmypdf.ExitCode.input_file
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def test_jpeg_in_jpeg_out(resources, outpdf, spoof_tesseract_noop):
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check_ocrmypdf(
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resources / 'congress.jpg',
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outpdf,
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'--image-dpi',
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'100',
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'--output-type',
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'pdf', # specifically check pdf because Ghostscript may convert to JPEG
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'--remove-background',
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env=spoof_tesseract_noop,
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)
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with pikepdf.open(outpdf) as pdf:
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assert next(pdf.pages[0].images.values()).Filter == pikepdf.Name.DCTDecode
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