mirror of
https://github.com/python-pillow/Pillow.git
synced 2024-12-25 09:26:16 +03:00
46 lines
1.3 KiB
Python
46 lines
1.3 KiB
Python
import sys
|
|
|
|
import pytest
|
|
|
|
from PIL import Image
|
|
|
|
|
|
def test_overflow():
|
|
# There is the potential to overflow comparisons in map.c
|
|
# if there are > SIZE_MAX bytes in the image or if
|
|
# the file encodes an offset that makes
|
|
# (offset + size(bytes)) > SIZE_MAX
|
|
|
|
# Note that this image triggers the decompression bomb warning:
|
|
max_pixels = Image.MAX_IMAGE_PIXELS
|
|
Image.MAX_IMAGE_PIXELS = None
|
|
|
|
# This image hits the offset test.
|
|
with Image.open("Tests/images/l2rgb_read.bmp") as im:
|
|
with pytest.raises((ValueError, MemoryError, OSError)):
|
|
im.load()
|
|
|
|
Image.MAX_IMAGE_PIXELS = max_pixels
|
|
|
|
|
|
def test_tobytes():
|
|
# Note that this image triggers the decompression bomb warning:
|
|
max_pixels = Image.MAX_IMAGE_PIXELS
|
|
Image.MAX_IMAGE_PIXELS = None
|
|
|
|
# Previously raised an access violation on Windows
|
|
with Image.open("Tests/images/l2rgb_read.bmp") as im:
|
|
with pytest.raises((ValueError, MemoryError, OSError)):
|
|
im.tobytes()
|
|
|
|
Image.MAX_IMAGE_PIXELS = max_pixels
|
|
|
|
|
|
@pytest.mark.skipif(sys.maxsize <= 2**32, reason="Requires 64-bit system")
|
|
def test_ysize():
|
|
numpy = pytest.importorskip("numpy", reason="NumPy not installed")
|
|
|
|
# Should not raise 'Integer overflow in ysize'
|
|
arr = numpy.zeros((46341, 46341), dtype=numpy.uint8)
|
|
Image.fromarray(arr)
|