Pillow/Tests/check_j2k_leaks.py
2018-03-19 19:38:17 +11:00

43 lines
1.4 KiB
Python
Executable File

from helper import unittest, PillowTestCase
import sys
from PIL import Image
from io import BytesIO
# Limits for testing the leak
mem_limit = 1024*1048576
stack_size = 8*1048576
iterations = int((mem_limit/stack_size)*2)
codecs = dir(Image.core)
test_file = "Tests/images/rgb_trns_ycbc.jp2"
@unittest.skipIf(sys.platform.startswith('win32'), "requires Unix or macOS")
class TestJpegLeaks(PillowTestCase):
def setUp(self):
if "jpeg2k_encoder" not in codecs or "jpeg2k_decoder" not in codecs:
self.skipTest('JPEG 2000 support not available')
def test_leak_load(self):
from resource import setrlimit, RLIMIT_AS, RLIMIT_STACK
setrlimit(RLIMIT_STACK, (stack_size, stack_size))
setrlimit(RLIMIT_AS, (mem_limit, mem_limit))
for _ in range(iterations):
with Image.open(test_file) as im:
im.load()
def test_leak_save(self):
from resource import setrlimit, RLIMIT_AS, RLIMIT_STACK
setrlimit(RLIMIT_STACK, (stack_size, stack_size))
setrlimit(RLIMIT_AS, (mem_limit, mem_limit))
for _ in range(iterations):
with Image.open(test_file) as im:
im.load()
test_output = BytesIO()
im.save(test_output, "JPEG2000")
test_output.seek(0)
test_output.read()
if __name__ == '__main__':
unittest.main()