Pillow/Tests/test_image_resample.py
2016-02-04 07:19:54 -08:00

37 lines
1.2 KiB
Python

from helper import unittest, PillowTestCase, hopper
from PIL import Image
class TestImagingCoreResize(PillowTestCase):
#see https://github.com/python-pillow/Pillow/issues/1710
def test_overflow(self):
im = hopper('L')
xsize = 0x100000008 // 4
ysize = 1000 # unimportant
try:
# any resampling filter will do here
im.im.resize((xsize, ysize), Image.LINEAR)
self.fail("Resize should raise MemoryError on invalid xsize")
except MemoryError:
self.assertTrue(True, "Should raise MemoryError")
def test_invalid_size(self):
im = hopper()
im.resize((100,100))
self.assertTrue(True, "Should not Crash")
try:
im.resize((-100,100))
self.fail("Resize should raise a value error on x negative size")
except ValueError:
self.assertTrue(True, "Should raise ValueError")
try:
im.resize((100,-100))
self.fail("Resize should raise a value error on y negative size")
except ValueError:
self.assertTrue(True, "Should raise ValueError")
if __name__ == '__main__':
unittest.main()