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f676891482
PyMuPDF replaced the need for almost all dependencies, which this commit now removes. We are also removing tesseract-ocr as a dependency since (to our surprise) PyMuPDF ships directly with tesseract binaries [1]. However, now that tesseract-ocr is not available directly as a binary tool, the `test_ocr.py` needed to be changed. Fixes #658 [1]: https://github.com/freedomofpress/dangerzone/issues/658#issuecomment-1861033149
56 lines
2 KiB
Python
56 lines
2 KiB
Python
import platform
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import subprocess
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from pathlib import Path
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import pytest
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from dangerzone.isolation_provider.container import Container
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from dangerzone.logic import DangerzoneCore
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# TODO: Perform an equivalent test on Qubes.
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# NOTE: We skip running this test on Windows/MacOS, because our current CI cannot run
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# Docker in these platforms. It's not a problem anyways, because the result should be
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# the same in all container-based platforms.
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@pytest.mark.skipif(platform.system() != "Linux", reason="Container-specific")
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def test_ocr_ommisions() -> None:
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# Create the command that will list all the installed languages in the container
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# image.
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runtime = Container.get_runtime()
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command = [
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runtime,
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"run",
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Container.CONTAINER_NAME,
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"find",
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"/usr/share/tessdata/",
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"-name",
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"*.traineddata",
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]
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# Run the command, strip any extra whitespace, and remove the following first line
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# from the result:
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#
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# List of available languages in "/usr/share/tessdata/" ...
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installed_langs_filenames = (
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subprocess.run(command, text=True, check=True, stdout=subprocess.PIPE)
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.stdout.strip()
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.split("\n")
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)
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installed_langs = set(
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[
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Path(filename).name.split(".traineddata")[0]
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for filename in installed_langs_filenames
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]
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)
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# Remove the "osd" and "equ" languages from the list of installed languages, since
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# they are not an actual language. Read more in:
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# https://pyimagesearch.com/2021/11/15/tesseract-page-segmentation-modes-psms-explained-how-to-improve-your-ocr-accuracy/
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installed_langs -= {"osd", "equ"}
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# Grab the languages that Dangerzone offers to the user through the GUI/CLI.
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offered_langs = set(DangerzoneCore(Container(True)).ocr_languages.values())
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# Ensure that both the installed languages and the ones we offer to the user are the
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# same.
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assert installed_langs == offered_langs
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