Pillow/Tests/check_large_memory_numpy.py

41 lines
938 B
Python
Raw Normal View History

import sys
2020-03-28 04:51:28 +03:00
import pytest
from PIL import Image
2013-12-14 09:02:27 +04:00
# This test is not run automatically.
#
# It requires > 2gb memory for the >2 gigapixel image generated in the
# second test. Running this automatically would amount to a denial of
# service on our testing infrastructure. I expect this test to fail
# on any 32-bit machine, as well as any smallish things (like
# Raspberry Pis).
2013-12-14 09:02:27 +04:00
2019-06-13 18:53:42 +03:00
2020-03-28 04:51:28 +03:00
np = pytest.importorskip("numpy", reason="NumPy not installed")
2013-12-14 09:02:27 +04:00
YDIM = 32769
XDIM = 48000
2013-12-14 09:02:27 +04:00
2020-03-28 04:51:28 +03:00
pytestmark = pytest.mark.skipif(sys.maxsize <= 2 ** 32, reason="requires 64-bit system")
def _write_png(tmp_path, xdim, ydim):
dtype = np.uint8
a = np.zeros((xdim, ydim), dtype=dtype)
f = str(tmp_path / "temp.png")
im = Image.fromarray(a, "L")
im.save(f)
2013-12-14 09:02:27 +04:00
2020-03-28 04:51:28 +03:00
def test_large(tmp_path):
""" succeeded prepatch"""
_write_png(tmp_path, XDIM, YDIM)
2020-03-28 04:51:28 +03:00
def test_2gpx(tmp_path):
"""failed prepatch"""
_write_png(tmp_path, XDIM, XDIM)