yujunjun/OCRmyPDF
1
0
Fork 0
mirror of https://github.com/ocrmypdf/OCRmyPDF.git synced 2026-01-07 04:32:45 +00:00
Code Issues Packages Projects Releases Wiki Activity

Add test case to ensure mono is not inverted

Browse Source
This commit is contained in:
James R. Barlow 2018-06-29 00:25:11 -07:00
parent 0029cc4fe7
commit e725f64b6a
1 changed files with 19 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
tests/test_optimize.py
View File

@ -18,8 +18,13 @@
from pathlib import Path
import pytest
import logging
from PIL import Image
from ocrmypdf import optimize as opt
from ocrmypdf.exec.ghostscript import rasterize_pdf
from ocrmypdf.helpers import fspath
@pytest.mark.parametrize('pdf', ['multipage.pdf', 'palette.pdf'])
@ -28,3 +33,17 @@ def test_basic(resources, pdf, outpdf):
opt.main(infile, outpdf, level=3)
assert Path(outpdf).stat().st_size <= Path(infile).stat().st_size
def test_mono_not_inverted(resources, outdir):
infile = resources / '2400dpi.pdf'
opt.main(infile, outdir / 'out.pdf', level=3)
rasterize_pdf(
outdir / 'out.pdf', outdir / 'im.png',
xres=10, yres=10, raster_device='pnggray',
log=logging.getLogger(name='test_mono_flip')
)
im = Image.open(fspath(outdir / 'im.png'))
assert im.getpixel((0, 0)) == 255, "Expected white background"