from helper import unittest, PillowTestCase, lena from PIL import Image, ImageSequence, TiffImagePlugin class TestImageSequence(PillowTestCase): def test_sanity(self): file = self.tempfile("temp.im") im = lena("RGB") im.save(file) seq = ImageSequence.Iterator(im) index = 0 for frame in seq: self.assert_image_equal(im, frame) self.assertEqual(im.tell(), index) index += 1 self.assertEqual(index, 1) def _test_multipage_tiff(self, dbg=False): # debug had side effect of calling fp.tell. Image.DEBUG=dbg im = Image.open('Tests/images/multipage.tiff') for index, frame in enumerate(ImageSequence.Iterator(im)): frame.load() self.assertEqual(index, im.tell()) frame.convert('RGB') Image.DEBUG=False def test_tiff(self): #self._test_multipage_tiff(True) self._test_multipage_tiff(False) def test_libtiff(self): codecs = dir(Image.core) if "libtiff_encoder" not in codecs or "libtiff_decoder" not in codecs: self.skipTest("tiff support not available") TiffImagePlugin.READ_LIBTIFF = True #self._test_multipage_tiff(True) self._test_multipage_tiff(False) TiffImagePlugin.READ_LIBTIFF = False if __name__ == '__main__': unittest.main() # End of file