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30 lines
897 B
Python
30 lines
897 B
Python
from helper import PillowTestCase, unittest
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import sys
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from PIL import Image
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@unittest.skipIf(sys.platform.startswith('win32'),
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"Win32 does not call map_buffer")
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class TestMap(PillowTestCase):
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def test_overflow(self):
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# There is the potential to overflow comparisons in map.c
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# if there are > SIZE_MAX bytes in the image or if
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# the file encodes an offset that makes
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# (offset + size(bytes)) > SIZE_MAX
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# Note that this image triggers the decompression bomb warning:
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max_pixels = Image.MAX_IMAGE_PIXELS
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Image.MAX_IMAGE_PIXELS = None
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# This image hits the offset test.
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im = Image.open('Tests/images/l2rgb_read.bmp')
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with self.assertRaises((ValueError, MemoryError, IOError)):
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im.load()
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Image.MAX_IMAGE_PIXELS = max_pixels
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if __name__ == '__main__':
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unittest.main()
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