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Merged
liZe merged 1 commit into from
Feb 9, 2026
Merged

Exercise both compressed and un-compressed PDF.write #34

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4 changes: 2 additions & 2 deletions tests/__init__.py
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Original file line number Diff line number Diff line change
Expand Up @@ -27,12 +27,12 @@
)


def assert_pixels(document, reference_pixels):
def assert_pixels(document, reference_pixels, compress=False):
"""Test that the rendered document matches the reference pixels."""

# Transform the PDF document into a list of RGB tuples
pdf = io.BytesIO()
document.write(pdf)
document.write(pdf, compress=compress)
command = [
'gs', '-q', '-dNOPAUSE', '-dSAFER', '-sDEVICE=png16m',
'-r576', '-dDownScaleFactor=8', '-sOutputFile=-', '-']
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22 changes: 14 additions & 8 deletions tests/test_pydyf.py
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Original file line number Diff line number Diff line change
@@ -1,12 +1,15 @@
import io
import re

import pytest

import pydyf

from . import assert_pixels


def test_fill():
@pytest.mark.parametrize("compress", [False, True])
def test_fill(compress):
document = pydyf.PDF()

draw = pydyf.Stream()
Expand All @@ -32,7 +35,7 @@ def test_fill():
__KKKKK___
__________
__________
''')
''', compress)


def test_stroke():
Expand Down Expand Up @@ -705,30 +708,33 @@ def test_text():
''')


def test_no_identifier():
@pytest.mark.parametrize("compress", [False, True])
def test_no_identifier(compress):
document = pydyf.PDF()
pdf = io.BytesIO()
document.write(pdf, identifier=False)
document.write(pdf, compress=compress, identifier=False)
assert re.search(
b'/ID \\[\\((?P<hash>[0-9a-f]{32})\\) \\((?P=hash)\\)\\]',
pdf.getvalue()
) is None


def test_default_identifier():
@pytest.mark.parametrize("compress", [False, True])
def test_default_identifier(compress):
document = pydyf.PDF()
pdf = io.BytesIO()
document.write(pdf, identifier=True)
document.write(pdf, compress=compress, identifier=True)
assert re.search(
b'/ID \\[\\((?P<hash>[0-9a-f]{32})\\) \\((?P=hash)\\)\\]',
pdf.getvalue()
) is not None


def test_custom_identifier():
@pytest.mark.parametrize("compress", [False, True])
def test_custom_identifier(compress):
document = pydyf.PDF()
pdf = io.BytesIO()
document.write(pdf, identifier=b'abc')
document.write(pdf, compress=compress, identifier=b'abc')
assert re.search(
b'/ID \\[\\(abc\\) \\(([0-9a-f]{32})\\)\\]',
pdf.getvalue()
Expand Down