from PIL import Image from helper import unittest, PillowTestCase class TestJ2kEncodeOverflow(PillowTestCase): def test_j2k_overflow(self): im = Image.new('RGBA', (1024, 131584)) target = self.tempfile('temp.jpc') with self.assertRaises(IOError): im.save(target) if __name__ == '__main__': unittest.main()