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https://github.com/ocrmypdf/OCRmyPDF.git
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56 lines
1.5 KiB
Python
Executable File
56 lines
1.5 KiB
Python
Executable File
# SPDX-FileCopyrightText: 2022 James R. Barlow
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# SPDX-License-Identifier: MIT
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from __future__ import annotations
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import signal
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from contextlib import contextmanager
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from subprocess import CalledProcessError
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from unittest.mock import patch
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from ocrmypdf import hookimpl
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from ocrmypdf.builtin_plugins.tesseract_ocr import TesseractOcrEngine
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def raise_crash(*args, **kwargs):
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raise CalledProcessError(
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128 + signal.SIGABRT,
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'tesseract',
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output=b"",
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stderr=b"libc++abi.dylib: terminating with uncaught exception of type "
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+ b"std::bad_alloc: std::bad_alloc",
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)
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@contextmanager
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def patch_tesseract_run():
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with patch('ocrmypdf._exec.tesseract.run') as mock:
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mock.side_effect = raise_crash
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yield
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mock.assert_called()
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class CrashOcrEngine(TesseractOcrEngine):
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@staticmethod
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def get_orientation(input_file, options):
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with patch_tesseract_run():
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return TesseractOcrEngine.get_orientation(input_file, options)
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@staticmethod
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def generate_hocr(input_file, output_hocr, output_text, options):
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with patch_tesseract_run():
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TesseractOcrEngine.generate_hocr(
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input_file, output_hocr, output_text, options
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)
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@staticmethod
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def generate_pdf(input_file, output_pdf, output_text, options):
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with patch_tesseract_run():
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TesseractOcrEngine.generate_pdf(
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input_file, output_pdf, output_text, options
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)
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@hookimpl
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def get_ocr_engine():
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return CrashOcrEngine()
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