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https://github.com/python-pillow/Pillow.git
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7da17ad41e
The previous test configuration made it difficult to run a single test with the pytest CLI. There were two major issues: - The Tests directory was not a package. It now includes a __init__.py file and imports from other tests modules are done with relative imports. - setup.cfg always specified the Tests directory. So even if a specific test were specified as a CLI arg, this configuration would also always include all tests. This configuration has been removed to allow specifying a single test on the command line. Contributors can now run specific tests with a single command such as: $ tox -e py37 -- Tests/test_file_pdf.py::TestFilePdf.test_rgb This makes it easy and faster to iterate on a single test failure and is very familiar to those that have previously used tox and pytest. When running tox or pytest with no arguments, they still discover and runs all tests in the Tests directory.
76 lines
2.2 KiB
Python
76 lines
2.2 KiB
Python
from .helper import unittest, PillowTestCase, hopper
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from PIL import Image, ImageSequence, TiffImagePlugin
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class TestImageSequence(PillowTestCase):
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def test_sanity(self):
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test_file = self.tempfile("temp.im")
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im = hopper("RGB")
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im.save(test_file)
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seq = ImageSequence.Iterator(im)
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index = 0
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for frame in seq:
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self.assert_image_equal(im, frame)
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self.assertEqual(im.tell(), index)
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index += 1
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self.assertEqual(index, 1)
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self.assertRaises(AttributeError, ImageSequence.Iterator, 0)
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def test_iterator(self):
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im = Image.open('Tests/images/multipage.tiff')
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i = ImageSequence.Iterator(im)
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for index in range(0, im.n_frames):
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self.assertEqual(i[index], next(i))
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self.assertRaises(IndexError, lambda: i[index+1])
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self.assertRaises(StopIteration, next, i)
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def _test_multipage_tiff(self):
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im = Image.open('Tests/images/multipage.tiff')
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for index, frame in enumerate(ImageSequence.Iterator(im)):
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frame.load()
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self.assertEqual(index, im.tell())
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frame.convert('RGB')
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def test_tiff(self):
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self._test_multipage_tiff()
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def test_libtiff(self):
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codecs = dir(Image.core)
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if "libtiff_encoder" not in codecs or "libtiff_decoder" not in codecs:
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self.skipTest("tiff support not available")
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TiffImagePlugin.READ_LIBTIFF = True
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self._test_multipage_tiff()
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TiffImagePlugin.READ_LIBTIFF = False
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def test_consecutive(self):
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im = Image.open('Tests/images/multipage.tiff')
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firstFrame = None
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for frame in ImageSequence.Iterator(im):
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if firstFrame is None:
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firstFrame = frame.copy()
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for frame in ImageSequence.Iterator(im):
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self.assert_image_equal(frame, firstFrame)
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break
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def test_palette_mmap(self):
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# Using mmap in ImageFile can require to reload the palette.
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im = Image.open('Tests/images/multipage-mmap.tiff')
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color1 = im.getpalette()[0:3]
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im.seek(0)
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color2 = im.getpalette()[0:3]
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self.assertEqual(color1, color2)
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if __name__ == '__main__':
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unittest.main()
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