OCRmyPDF/tests/test_page_numbers.py
2022-08-11 01:13:10 -07:00

64 lines
1.6 KiB
Python

# SPDX-FileCopyrightText: 2022 James R. Barlow
# SPDX-License-Identifier: MPL-2.0
from __future__ import annotations
import pytest
import ocrmypdf
from ocrmypdf._validation import _pages_from_ranges
from ocrmypdf.exceptions import BadArgsError
from ocrmypdf.pdfinfo import PdfInfo
@pytest.mark.parametrize(
'pages, result',
[
['1', {0}],
['1,2', {0, 1}],
['1-3', {0, 1, 2}],
['2,5,6', {1, 4, 5}],
['11-15, 18, ', {10, 11, 12, 13, 14, 17}],
[',,3', {2}],
['3, 3, 3, 3,', {2}],
['3, 2, 1, 42', {0, 1, 2, 41}],
['-1', BadArgsError],
['1,3,-11', BadArgsError],
['1-,', BadArgsError],
['start-end', BadArgsError],
['1-0', BadArgsError],
['99-98', BadArgsError],
['0-0', BadArgsError],
['1-0,3-4', BadArgsError],
[',', BadArgsError],
['', BadArgsError],
],
)
def test_pages(pages, result):
if isinstance(result, type):
with pytest.raises(result):
_pages_from_ranges(pages)
else:
assert _pages_from_ranges(pages) == result
def test_nonmonotonic_warning(caplog):
pages = _pages_from_ranges('1, 3, 2')
assert pages == {0, 1, 2}
assert 'out of order' in caplog.text
def test_limited_pages(multipage, outpdf):
ocrmypdf.ocr(
multipage,
outpdf,
pages='5-6',
optimize=0,
output_type='pdf',
plugins=['tests/plugins/tesseract_cache.py'],
)
pi = PdfInfo(outpdf)
assert not pi.pages[0].has_text
assert pi.pages[4].has_text
assert pi.pages[5].has_text