from helper import unittest, PillowTestCase, hopper from PIL import Image class TestFilePcx(PillowTestCase): def _roundtrip(self, im): f = self.tempfile("temp.pcx") im.save(f) im2 = Image.open(f) self.assertEqual(im2.mode, im.mode) self.assertEqual(im2.size, im.size) self.assertEqual(im2.format, "PCX") self.assert_image_equal(im2, im) def test_sanity(self): for mode in ('1', 'L', 'P', 'RGB'): self._roundtrip(hopper(mode)) def test_odd(self): # see issue #523, odd sized images should have a stride that's even. # not that imagemagick or gimp write pcx that way. # we were not handling properly. for mode in ('1', 'L', 'P', 'RGB'): # larger, odd sized images are better here to ensure that # we handle interrupted scan lines properly. self._roundtrip(hopper(mode).resize((511, 511))) def test_pil184(self): # Check reading of files where xmin/xmax is not zero. file = "Tests/images/pil184.pcx" im = Image.open(file) self.assertEqual(im.size, (447, 144)) self.assertEqual(im.tile[0][1], (0, 0, 447, 144)) # Make sure all pixels are either 0 or 255. self.assertEqual(im.histogram()[0] + im.histogram()[255], 447*144) if __name__ == '__main__': unittest.main() # End of file