OCRmyPDF/tests/plugins/gs_feature_elision.py
2022-08-02 15:01:10 -07:00

37 lines
1.1 KiB
Python

# SPDX-FileCopyrightText: 2022 James R. Barlow
# SPDX-License-Identifier: MIT
from __future__ import annotations
from unittest.mock import patch
from ocrmypdf import hookimpl
from ocrmypdf.builtin_plugins import ghostscript
from ocrmypdf.subprocess import run_polling_stderr
ELISION_WARNING = """GPL Ghostscript 9.50: Setting Overprint Mode to 1
not permitted in PDF/A-2, overprint mode not set"""
def run_append_stderr(*args, **kwargs):
proc = run_polling_stderr(*args, **kwargs)
proc.stderr += '\n' + ELISION_WARNING + '\n'
return proc
@hookimpl
def generate_pdfa(pdf_pages, pdfmark, output_file, compression, pdf_version, pdfa_part):
with patch('ocrmypdf._exec.ghostscript.run_polling_stderr') as mock:
mock.side_effect = run_append_stderr
ghostscript.generate_pdfa(
pdf_pages=pdf_pages,
pdfmark=pdfmark,
output_file=output_file,
compression=compression,
pdf_version=pdf_version,
pdfa_part=pdfa_part,
progressbar_class=None,
)
mock.assert_called_once()
return output_file