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	Convert from unittest to pytest
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import pytest
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from PIL import Image, ImageSequence, PngImagePlugin
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from .helper import PillowTestCase
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class TestFilePng(PillowTestCase):
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# APNG browser support tests and fixtures via:
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# https://philip.html5.org/tests/apng/tests.html
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# (referenced from https://wiki.mozilla.org/APNG_Specification)
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    def test_apng_basic(self):
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def test_apng_basic():
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    with Image.open("Tests/images/apng/single_frame.png") as im:
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            self.assertFalse(im.is_animated)
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            self.assertEqual(im.n_frames, 1)
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            self.assertEqual(im.get_format_mimetype(), "image/apng")
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            self.assertIsNone(im.info.get("default_image"))
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            self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
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            self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
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        assert not im.is_animated
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        assert im.n_frames == 1
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        assert im.get_format_mimetype() == "image/apng"
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        assert im.info.get("default_image") is None
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        assert im.getpixel((0, 0)) == (0, 255, 0, 255)
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        assert im.getpixel((64, 32)) == (0, 255, 0, 255)
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    with Image.open("Tests/images/apng/single_frame_default.png") as im:
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            self.assertTrue(im.is_animated)
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            self.assertEqual(im.n_frames, 2)
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            self.assertEqual(im.get_format_mimetype(), "image/apng")
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            self.assertTrue(im.info.get("default_image"))
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            self.assertEqual(im.getpixel((0, 0)), (255, 0, 0, 255))
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            self.assertEqual(im.getpixel((64, 32)), (255, 0, 0, 255))
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        assert im.is_animated
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        assert im.n_frames == 2
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        assert im.get_format_mimetype() == "image/apng"
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        assert im.info.get("default_image")
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        assert im.getpixel((0, 0)) == (255, 0, 0, 255)
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        assert im.getpixel((64, 32)) == (255, 0, 0, 255)
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        im.seek(1)
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            self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
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            self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
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        assert im.getpixel((0, 0)) == (0, 255, 0, 255)
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        assert im.getpixel((64, 32)) == (0, 255, 0, 255)
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        # test out of bounds seek
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            with self.assertRaises(EOFError):
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        with pytest.raises(EOFError):
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            im.seek(2)
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        # test rewind support
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        im.seek(0)
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            self.assertEqual(im.getpixel((0, 0)), (255, 0, 0, 255))
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            self.assertEqual(im.getpixel((64, 32)), (255, 0, 0, 255))
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        assert im.getpixel((0, 0)) == (255, 0, 0, 255)
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        assert im.getpixel((64, 32)) == (255, 0, 0, 255)
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        im.seek(1)
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            self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
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            self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
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        assert im.getpixel((0, 0)) == (0, 255, 0, 255)
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        assert im.getpixel((64, 32)) == (0, 255, 0, 255)
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    def test_apng_fdat(self):
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def test_apng_fdat():
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    with Image.open("Tests/images/apng/split_fdat.png") as im:
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        im.seek(im.n_frames - 1)
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            self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
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            self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
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        assert im.getpixel((0, 0)) == (0, 255, 0, 255)
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        assert im.getpixel((64, 32)) == (0, 255, 0, 255)
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    with Image.open("Tests/images/apng/split_fdat_zero_chunk.png") as im:
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        im.seek(im.n_frames - 1)
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            self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
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            self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
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        assert im.getpixel((0, 0)) == (0, 255, 0, 255)
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        assert im.getpixel((64, 32)) == (0, 255, 0, 255)
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    def test_apng_dispose(self):
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def test_apng_dispose():
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    with Image.open("Tests/images/apng/dispose_op_none.png") as im:
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        im.seek(im.n_frames - 1)
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            self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
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            self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
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        assert im.getpixel((0, 0)) == (0, 255, 0, 255)
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        assert im.getpixel((64, 32)) == (0, 255, 0, 255)
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    with Image.open("Tests/images/apng/dispose_op_background.png") as im:
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        im.seek(im.n_frames - 1)
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            self.assertEqual(im.getpixel((0, 0)), (0, 0, 0, 0))
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            self.assertEqual(im.getpixel((64, 32)), (0, 0, 0, 0))
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        assert im.getpixel((0, 0)) == (0, 0, 0, 0)
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        assert im.getpixel((64, 32)) == (0, 0, 0, 0)
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    with Image.open("Tests/images/apng/dispose_op_background_final.png") as im:
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        im.seek(im.n_frames - 1)
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            self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
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            self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
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        assert im.getpixel((0, 0)) == (0, 255, 0, 255)
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        assert im.getpixel((64, 32)) == (0, 255, 0, 255)
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    with Image.open("Tests/images/apng/dispose_op_previous.png") as im:
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        im.seek(im.n_frames - 1)
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            self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
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            self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
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        assert im.getpixel((0, 0)) == (0, 255, 0, 255)
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        assert im.getpixel((64, 32)) == (0, 255, 0, 255)
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    with Image.open("Tests/images/apng/dispose_op_previous_final.png") as im:
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        im.seek(im.n_frames - 1)
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            self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
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            self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
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        assert im.getpixel((0, 0)) == (0, 255, 0, 255)
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        assert im.getpixel((64, 32)) == (0, 255, 0, 255)
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    with Image.open("Tests/images/apng/dispose_op_previous_first.png") as im:
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        im.seek(im.n_frames - 1)
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            self.assertEqual(im.getpixel((0, 0)), (0, 0, 0, 0))
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            self.assertEqual(im.getpixel((64, 32)), (0, 0, 0, 0))
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        assert im.getpixel((0, 0)) == (0, 0, 0, 0)
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        assert im.getpixel((64, 32)) == (0, 0, 0, 0)
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    def test_apng_dispose_region(self):
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def test_apng_dispose_region():
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    with Image.open("Tests/images/apng/dispose_op_none_region.png") as im:
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        im.seek(im.n_frames - 1)
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            self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
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            self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
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        assert im.getpixel((0, 0)) == (0, 255, 0, 255)
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        assert im.getpixel((64, 32)) == (0, 255, 0, 255)
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        with Image.open(
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            "Tests/images/apng/dispose_op_background_before_region.png"
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        ) as im:
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    with Image.open("Tests/images/apng/dispose_op_background_before_region.png") as im:
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        im.seek(im.n_frames - 1)
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            self.assertEqual(im.getpixel((0, 0)), (0, 0, 0, 0))
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            self.assertEqual(im.getpixel((64, 32)), (0, 0, 0, 0))
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        assert im.getpixel((0, 0)) == (0, 0, 0, 0)
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        assert im.getpixel((64, 32)) == (0, 0, 0, 0)
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    with Image.open("Tests/images/apng/dispose_op_background_region.png") as im:
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        im.seek(im.n_frames - 1)
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            self.assertEqual(im.getpixel((0, 0)), (0, 0, 255, 255))
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            self.assertEqual(im.getpixel((64, 32)), (0, 0, 0, 0))
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        assert im.getpixel((0, 0)) == (0, 0, 255, 255)
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        assert im.getpixel((64, 32)) == (0, 0, 0, 0)
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    with Image.open("Tests/images/apng/dispose_op_previous_region.png") as im:
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        im.seek(im.n_frames - 1)
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            self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
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            self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
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        assert im.getpixel((0, 0)) == (0, 255, 0, 255)
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        assert im.getpixel((64, 32)) == (0, 255, 0, 255)
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    def test_apng_blend(self):
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def test_apng_blend():
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    with Image.open("Tests/images/apng/blend_op_source_solid.png") as im:
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        im.seek(im.n_frames - 1)
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            self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
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            self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
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        assert im.getpixel((0, 0)) == (0, 255, 0, 255)
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        assert im.getpixel((64, 32)) == (0, 255, 0, 255)
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    with Image.open("Tests/images/apng/blend_op_source_transparent.png") as im:
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        im.seek(im.n_frames - 1)
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            self.assertEqual(im.getpixel((0, 0)), (0, 0, 0, 0))
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            self.assertEqual(im.getpixel((64, 32)), (0, 0, 0, 0))
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        assert im.getpixel((0, 0)) == (0, 0, 0, 0)
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        assert im.getpixel((64, 32)) == (0, 0, 0, 0)
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    with Image.open("Tests/images/apng/blend_op_source_near_transparent.png") as im:
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        im.seek(im.n_frames - 1)
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            self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 2))
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            self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 2))
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        assert im.getpixel((0, 0)) == (0, 255, 0, 2)
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        assert im.getpixel((64, 32)) == (0, 255, 0, 2)
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    with Image.open("Tests/images/apng/blend_op_over.png") as im:
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        im.seek(im.n_frames - 1)
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            self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
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            self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
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        assert im.getpixel((0, 0)) == (0, 255, 0, 255)
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        assert im.getpixel((64, 32)) == (0, 255, 0, 255)
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    with Image.open("Tests/images/apng/blend_op_over_near_transparent.png") as im:
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        im.seek(im.n_frames - 1)
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            self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 97))
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            self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
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        assert im.getpixel((0, 0)) == (0, 255, 0, 97)
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        assert im.getpixel((64, 32)) == (0, 255, 0, 255)
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    def test_apng_chunk_order(self):
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def test_apng_chunk_order():
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    with Image.open("Tests/images/apng/fctl_actl.png") as im:
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        im.seek(im.n_frames - 1)
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            self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
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            self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
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        assert im.getpixel((0, 0)) == (0, 255, 0, 255)
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        assert im.getpixel((64, 32)) == (0, 255, 0, 255)
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    def test_apng_delay(self):
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def test_apng_delay():
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    with Image.open("Tests/images/apng/delay.png") as im:
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        im.seek(1)
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            self.assertEqual(im.info.get("duration"), 500.0)
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        assert im.info.get("duration") == 500.0
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        im.seek(2)
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            self.assertEqual(im.info.get("duration"), 1000.0)
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        assert im.info.get("duration") == 1000.0
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        im.seek(3)
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            self.assertEqual(im.info.get("duration"), 500.0)
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        assert im.info.get("duration") == 500.0
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        im.seek(4)
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            self.assertEqual(im.info.get("duration"), 1000.0)
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        assert im.info.get("duration") == 1000.0
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    with Image.open("Tests/images/apng/delay_round.png") as im:
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        im.seek(1)
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            self.assertEqual(im.info.get("duration"), 500.0)
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        assert im.info.get("duration") == 500.0
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        im.seek(2)
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            self.assertEqual(im.info.get("duration"), 1000.0)
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        assert im.info.get("duration") == 1000.0
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    with Image.open("Tests/images/apng/delay_short_max.png") as im:
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        im.seek(1)
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            self.assertEqual(im.info.get("duration"), 500.0)
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        assert im.info.get("duration") == 500.0
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        im.seek(2)
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            self.assertEqual(im.info.get("duration"), 1000.0)
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        assert im.info.get("duration") == 1000.0
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    with Image.open("Tests/images/apng/delay_zero_denom.png") as im:
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        im.seek(1)
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            self.assertEqual(im.info.get("duration"), 500.0)
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        assert im.info.get("duration") == 500.0
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        im.seek(2)
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            self.assertEqual(im.info.get("duration"), 1000.0)
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        assert im.info.get("duration") == 1000.0
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    with Image.open("Tests/images/apng/delay_zero_numer.png") as im:
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        im.seek(1)
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            self.assertEqual(im.info.get("duration"), 0.0)
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        assert im.info.get("duration") == 0.0
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        im.seek(2)
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            self.assertEqual(im.info.get("duration"), 0.0)
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        assert im.info.get("duration") == 0.0
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        im.seek(3)
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            self.assertEqual(im.info.get("duration"), 500.0)
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        assert im.info.get("duration") == 500.0
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        im.seek(4)
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            self.assertEqual(im.info.get("duration"), 1000.0)
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        assert im.info.get("duration") == 1000.0
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    def test_apng_num_plays(self):
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def test_apng_num_plays():
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    with Image.open("Tests/images/apng/num_plays.png") as im:
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            self.assertEqual(im.info.get("loop"), 0)
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        assert im.info.get("loop") == 0
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    with Image.open("Tests/images/apng/num_plays_1.png") as im:
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            self.assertEqual(im.info.get("loop"), 1)
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        assert im.info.get("loop") == 1
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    def test_apng_mode(self):
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def test_apng_mode():
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    with Image.open("Tests/images/apng/mode_16bit.png") as im:
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            self.assertEqual(im.mode, "RGBA")
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        assert im.mode == "RGBA"
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        im.seek(im.n_frames - 1)
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            self.assertEqual(im.getpixel((0, 0)), (0, 0, 128, 191))
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            self.assertEqual(im.getpixel((64, 32)), (0, 0, 128, 191))
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        assert im.getpixel((0, 0)) == (0, 0, 128, 191)
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        assert im.getpixel((64, 32)) == (0, 0, 128, 191)
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    with Image.open("Tests/images/apng/mode_greyscale.png") as im:
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            self.assertEqual(im.mode, "L")
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        assert im.mode == "L"
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        im.seek(im.n_frames - 1)
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            self.assertEqual(im.getpixel((0, 0)), 128)
 | 
			
		||||
            self.assertEqual(im.getpixel((64, 32)), 255)
 | 
			
		||||
        assert im.getpixel((0, 0)) == 128
 | 
			
		||||
        assert im.getpixel((64, 32)) == 255
 | 
			
		||||
 | 
			
		||||
    with Image.open("Tests/images/apng/mode_greyscale_alpha.png") as im:
 | 
			
		||||
            self.assertEqual(im.mode, "LA")
 | 
			
		||||
        assert im.mode == "LA"
 | 
			
		||||
        im.seek(im.n_frames - 1)
 | 
			
		||||
            self.assertEqual(im.getpixel((0, 0)), (128, 191))
 | 
			
		||||
            self.assertEqual(im.getpixel((64, 32)), (128, 191))
 | 
			
		||||
        assert im.getpixel((0, 0)) == (128, 191)
 | 
			
		||||
        assert im.getpixel((64, 32)) == (128, 191)
 | 
			
		||||
 | 
			
		||||
    with Image.open("Tests/images/apng/mode_palette.png") as im:
 | 
			
		||||
            self.assertEqual(im.mode, "P")
 | 
			
		||||
        assert im.mode == "P"
 | 
			
		||||
        im.seek(im.n_frames - 1)
 | 
			
		||||
        im = im.convert("RGB")
 | 
			
		||||
            self.assertEqual(im.getpixel((0, 0)), (0, 255, 0))
 | 
			
		||||
            self.assertEqual(im.getpixel((64, 32)), (0, 255, 0))
 | 
			
		||||
        assert im.getpixel((0, 0)) == (0, 255, 0)
 | 
			
		||||
        assert im.getpixel((64, 32)) == (0, 255, 0)
 | 
			
		||||
 | 
			
		||||
    with Image.open("Tests/images/apng/mode_palette_alpha.png") as im:
 | 
			
		||||
            self.assertEqual(im.mode, "P")
 | 
			
		||||
        assert im.mode == "P"
 | 
			
		||||
        im.seek(im.n_frames - 1)
 | 
			
		||||
        im = im.convert("RGBA")
 | 
			
		||||
            self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
 | 
			
		||||
            self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
 | 
			
		||||
        assert im.getpixel((0, 0)) == (0, 255, 0, 255)
 | 
			
		||||
        assert im.getpixel((64, 32)) == (0, 255, 0, 255)
 | 
			
		||||
 | 
			
		||||
    with Image.open("Tests/images/apng/mode_palette_1bit_alpha.png") as im:
 | 
			
		||||
            self.assertEqual(im.mode, "P")
 | 
			
		||||
        assert im.mode == "P"
 | 
			
		||||
        im.seek(im.n_frames - 1)
 | 
			
		||||
        im = im.convert("RGBA")
 | 
			
		||||
            self.assertEqual(im.getpixel((0, 0)), (0, 0, 255, 128))
 | 
			
		||||
            self.assertEqual(im.getpixel((64, 32)), (0, 0, 255, 128))
 | 
			
		||||
        assert im.getpixel((0, 0)) == (0, 0, 255, 128)
 | 
			
		||||
        assert im.getpixel((64, 32)) == (0, 0, 255, 128)
 | 
			
		||||
 | 
			
		||||
    def test_apng_chunk_errors(self):
 | 
			
		||||
 | 
			
		||||
def test_apng_chunk_errors():
 | 
			
		||||
    with Image.open("Tests/images/apng/chunk_no_actl.png") as im:
 | 
			
		||||
            self.assertFalse(im.is_animated)
 | 
			
		||||
        assert not im.is_animated
 | 
			
		||||
 | 
			
		||||
    def open():
 | 
			
		||||
        with Image.open("Tests/images/apng/chunk_multi_actl.png") as im:
 | 
			
		||||
            im.load()
 | 
			
		||||
            self.assertFalse(im.is_animated)
 | 
			
		||||
        assert not im.is_animated
 | 
			
		||||
 | 
			
		||||
    pytest.warns(UserWarning, open)
 | 
			
		||||
 | 
			
		||||
    with Image.open("Tests/images/apng/chunk_actl_after_idat.png") as im:
 | 
			
		||||
            self.assertFalse(im.is_animated)
 | 
			
		||||
        assert not im.is_animated
 | 
			
		||||
 | 
			
		||||
    with Image.open("Tests/images/apng/chunk_no_fctl.png") as im:
 | 
			
		||||
            with self.assertRaises(SyntaxError):
 | 
			
		||||
        with pytest.raises(SyntaxError):
 | 
			
		||||
            im.seek(im.n_frames - 1)
 | 
			
		||||
 | 
			
		||||
    with Image.open("Tests/images/apng/chunk_repeat_fctl.png") as im:
 | 
			
		||||
            with self.assertRaises(SyntaxError):
 | 
			
		||||
        with pytest.raises(SyntaxError):
 | 
			
		||||
            im.seek(im.n_frames - 1)
 | 
			
		||||
 | 
			
		||||
    with Image.open("Tests/images/apng/chunk_no_fdat.png") as im:
 | 
			
		||||
            with self.assertRaises(SyntaxError):
 | 
			
		||||
        with pytest.raises(SyntaxError):
 | 
			
		||||
            im.seek(im.n_frames - 1)
 | 
			
		||||
 | 
			
		||||
    def test_apng_syntax_errors(self):
 | 
			
		||||
 | 
			
		||||
def test_apng_syntax_errors():
 | 
			
		||||
    def open_frames_zero():
 | 
			
		||||
        with Image.open("Tests/images/apng/syntax_num_frames_zero.png") as im:
 | 
			
		||||
                self.assertFalse(im.is_animated)
 | 
			
		||||
                with self.assertRaises(OSError):
 | 
			
		||||
            assert not im.is_animated
 | 
			
		||||
            with pytest.raises(OSError):
 | 
			
		||||
                im.load()
 | 
			
		||||
 | 
			
		||||
    pytest.warns(UserWarning, open_frames_zero)
 | 
			
		||||
 | 
			
		||||
    def open_frames_zero_default():
 | 
			
		||||
            with Image.open(
 | 
			
		||||
                "Tests/images/apng/syntax_num_frames_zero_default.png"
 | 
			
		||||
            ) as im:
 | 
			
		||||
                self.assertFalse(im.is_animated)
 | 
			
		||||
        with Image.open("Tests/images/apng/syntax_num_frames_zero_default.png") as im:
 | 
			
		||||
            assert not im.is_animated
 | 
			
		||||
            im.load()
 | 
			
		||||
 | 
			
		||||
    pytest.warns(UserWarning, open_frames_zero_default)
 | 
			
		||||
| 
						 | 
				
			
			@ -275,21 +277,22 @@ class TestFilePng(PillowTestCase):
 | 
			
		|||
            im.seek(im.n_frames - 1)
 | 
			
		||||
        except Exception as e:
 | 
			
		||||
            exception = e
 | 
			
		||||
            self.assertIsNone(exception)
 | 
			
		||||
        assert exception is None
 | 
			
		||||
 | 
			
		||||
        with self.assertRaises(SyntaxError):
 | 
			
		||||
    with pytest.raises(SyntaxError):
 | 
			
		||||
        with Image.open("Tests/images/apng/syntax_num_frames_high.png") as im:
 | 
			
		||||
            im.seek(im.n_frames - 1)
 | 
			
		||||
            im.load()
 | 
			
		||||
 | 
			
		||||
    def open():
 | 
			
		||||
        with Image.open("Tests/images/apng/syntax_num_frames_invalid.png") as im:
 | 
			
		||||
                self.assertFalse(im.is_animated)
 | 
			
		||||
            assert not im.is_animated
 | 
			
		||||
            im.load()
 | 
			
		||||
 | 
			
		||||
    pytest.warns(UserWarning, open)
 | 
			
		||||
 | 
			
		||||
    def test_apng_sequence_errors(self):
 | 
			
		||||
 | 
			
		||||
def test_apng_sequence_errors():
 | 
			
		||||
    test_files = [
 | 
			
		||||
        "sequence_start.png",
 | 
			
		||||
        "sequence_gap.png",
 | 
			
		||||
| 
						 | 
				
			
			@ -300,24 +303,25 @@ class TestFilePng(PillowTestCase):
 | 
			
		|||
        "sequence_fdat_fctl.png",
 | 
			
		||||
    ]
 | 
			
		||||
    for f in test_files:
 | 
			
		||||
            with self.assertRaises(SyntaxError):
 | 
			
		||||
        with pytest.raises(SyntaxError):
 | 
			
		||||
            with Image.open("Tests/images/apng/{0}".format(f)) as im:
 | 
			
		||||
                im.seek(im.n_frames - 1)
 | 
			
		||||
                im.load()
 | 
			
		||||
 | 
			
		||||
    def test_apng_save(self):
 | 
			
		||||
 | 
			
		||||
def test_apng_save(tmp_path):
 | 
			
		||||
    with Image.open("Tests/images/apng/single_frame.png") as im:
 | 
			
		||||
            test_file = self.tempfile("temp.png")
 | 
			
		||||
        test_file = str(tmp_path / "temp.png")
 | 
			
		||||
        im.save(test_file, save_all=True)
 | 
			
		||||
 | 
			
		||||
    with Image.open(test_file) as im:
 | 
			
		||||
        im.load()
 | 
			
		||||
            self.assertFalse(im.is_animated)
 | 
			
		||||
            self.assertEqual(im.n_frames, 1)
 | 
			
		||||
            self.assertEqual(im.get_format_mimetype(), "image/apng")
 | 
			
		||||
            self.assertIsNone(im.info.get("default_image"))
 | 
			
		||||
            self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
 | 
			
		||||
            self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
 | 
			
		||||
        assert not im.is_animated
 | 
			
		||||
        assert im.n_frames == 1
 | 
			
		||||
        assert im.get_format_mimetype() == "image/apng"
 | 
			
		||||
        assert im.info.get("default_image") is None
 | 
			
		||||
        assert im.getpixel((0, 0)) == (0, 255, 0, 255)
 | 
			
		||||
        assert im.getpixel((64, 32)) == (0, 255, 0, 255)
 | 
			
		||||
 | 
			
		||||
    with Image.open("Tests/images/apng/single_frame_default.png") as im:
 | 
			
		||||
        frames = []
 | 
			
		||||
| 
						 | 
				
			
			@ -329,20 +333,21 @@ class TestFilePng(PillowTestCase):
 | 
			
		|||
 | 
			
		||||
    with Image.open(test_file) as im:
 | 
			
		||||
        im.load()
 | 
			
		||||
            self.assertTrue(im.is_animated)
 | 
			
		||||
            self.assertEqual(im.n_frames, 2)
 | 
			
		||||
            self.assertEqual(im.get_format_mimetype(), "image/apng")
 | 
			
		||||
            self.assertTrue(im.info.get("default_image"))
 | 
			
		||||
        assert im.is_animated
 | 
			
		||||
        assert im.n_frames == 2
 | 
			
		||||
        assert im.get_format_mimetype() == "image/apng"
 | 
			
		||||
        assert im.info.get("default_image")
 | 
			
		||||
        im.seek(1)
 | 
			
		||||
            self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
 | 
			
		||||
            self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
 | 
			
		||||
        assert im.getpixel((0, 0)) == (0, 255, 0, 255)
 | 
			
		||||
        assert im.getpixel((64, 32)) == (0, 255, 0, 255)
 | 
			
		||||
 | 
			
		||||
    def test_apng_save_split_fdat(self):
 | 
			
		||||
 | 
			
		||||
def test_apng_save_split_fdat(tmp_path):
 | 
			
		||||
    # test to make sure we do not generate sequence errors when writing
 | 
			
		||||
    # frames with image data spanning multiple fdAT chunks (in this case
 | 
			
		||||
    # both the default image and first animation frame will span multiple
 | 
			
		||||
    # data chunks)
 | 
			
		||||
        test_file = self.tempfile("temp.png")
 | 
			
		||||
    test_file = str(tmp_path / "temp.png")
 | 
			
		||||
    with Image.open("Tests/images/old-style-jpeg-compression.png") as im:
 | 
			
		||||
        frames = [im.copy(), Image.new("RGBA", im.size, (255, 0, 0, 255))]
 | 
			
		||||
        im.save(
 | 
			
		||||
| 
						 | 
				
			
			@ -355,10 +360,11 @@ class TestFilePng(PillowTestCase):
 | 
			
		|||
            im.load()
 | 
			
		||||
        except Exception as e:
 | 
			
		||||
            exception = e
 | 
			
		||||
            self.assertIsNone(exception)
 | 
			
		||||
        assert exception is None
 | 
			
		||||
 | 
			
		||||
    def test_apng_save_duration_loop(self):
 | 
			
		||||
        test_file = self.tempfile("temp.png")
 | 
			
		||||
 | 
			
		||||
def test_apng_save_duration_loop(tmp_path):
 | 
			
		||||
    test_file = str(tmp_path / "temp.png")
 | 
			
		||||
    with Image.open("Tests/images/apng/delay.png") as im:
 | 
			
		||||
        frames = []
 | 
			
		||||
        durations = []
 | 
			
		||||
| 
						 | 
				
			
			@ -379,26 +385,27 @@ class TestFilePng(PillowTestCase):
 | 
			
		|||
 | 
			
		||||
    with Image.open(test_file) as im:
 | 
			
		||||
        im.load()
 | 
			
		||||
            self.assertEqual(im.info.get("loop"), loop)
 | 
			
		||||
        assert im.info.get("loop") == loop
 | 
			
		||||
        im.seek(1)
 | 
			
		||||
            self.assertEqual(im.info.get("duration"), 500.0)
 | 
			
		||||
        assert im.info.get("duration") == 500.0
 | 
			
		||||
        im.seek(2)
 | 
			
		||||
            self.assertEqual(im.info.get("duration"), 1000.0)
 | 
			
		||||
        assert im.info.get("duration") == 1000.0
 | 
			
		||||
        im.seek(3)
 | 
			
		||||
            self.assertEqual(im.info.get("duration"), 500.0)
 | 
			
		||||
        assert im.info.get("duration") == 500.0
 | 
			
		||||
        im.seek(4)
 | 
			
		||||
            self.assertEqual(im.info.get("duration"), 1000.0)
 | 
			
		||||
        assert im.info.get("duration") == 1000.0
 | 
			
		||||
 | 
			
		||||
    # test removal of duplicated frames
 | 
			
		||||
    frame = Image.new("RGBA", (128, 64), (255, 0, 0, 255))
 | 
			
		||||
    frame.save(test_file, save_all=True, append_images=[frame], duration=[500, 250])
 | 
			
		||||
    with Image.open(test_file) as im:
 | 
			
		||||
        im.load()
 | 
			
		||||
            self.assertEqual(im.n_frames, 1)
 | 
			
		||||
            self.assertEqual(im.info.get("duration"), 750)
 | 
			
		||||
        assert im.n_frames == 1
 | 
			
		||||
        assert im.info.get("duration") == 750
 | 
			
		||||
 | 
			
		||||
    def test_apng_save_disposal(self):
 | 
			
		||||
        test_file = self.tempfile("temp.png")
 | 
			
		||||
 | 
			
		||||
def test_apng_save_disposal(tmp_path):
 | 
			
		||||
    test_file = str(tmp_path / "temp.png")
 | 
			
		||||
    size = (128, 64)
 | 
			
		||||
    red = Image.new("RGBA", size, (255, 0, 0, 255))
 | 
			
		||||
    green = Image.new("RGBA", size, (0, 255, 0, 255))
 | 
			
		||||
| 
						 | 
				
			
			@ -414,8 +421,8 @@ class TestFilePng(PillowTestCase):
 | 
			
		|||
    )
 | 
			
		||||
    with Image.open(test_file) as im:
 | 
			
		||||
        im.seek(2)
 | 
			
		||||
            self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
 | 
			
		||||
            self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
 | 
			
		||||
        assert im.getpixel((0, 0)) == (0, 255, 0, 255)
 | 
			
		||||
        assert im.getpixel((64, 32)) == (0, 255, 0, 255)
 | 
			
		||||
 | 
			
		||||
    # test APNG_DISPOSE_OP_BACKGROUND
 | 
			
		||||
    disposal = [
 | 
			
		||||
| 
						 | 
				
			
			@ -432,8 +439,8 @@ class TestFilePng(PillowTestCase):
 | 
			
		|||
    )
 | 
			
		||||
    with Image.open(test_file) as im:
 | 
			
		||||
        im.seek(2)
 | 
			
		||||
            self.assertEqual(im.getpixel((0, 0)), (0, 0, 0, 0))
 | 
			
		||||
            self.assertEqual(im.getpixel((64, 32)), (0, 0, 0, 0))
 | 
			
		||||
        assert im.getpixel((0, 0)) == (0, 0, 0, 0)
 | 
			
		||||
        assert im.getpixel((64, 32)) == (0, 0, 0, 0)
 | 
			
		||||
 | 
			
		||||
    disposal = [
 | 
			
		||||
        PngImagePlugin.APNG_DISPOSE_OP_NONE,
 | 
			
		||||
| 
						 | 
				
			
			@ -448,8 +455,8 @@ class TestFilePng(PillowTestCase):
 | 
			
		|||
    )
 | 
			
		||||
    with Image.open(test_file) as im:
 | 
			
		||||
        im.seek(1)
 | 
			
		||||
            self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
 | 
			
		||||
            self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
 | 
			
		||||
        assert im.getpixel((0, 0)) == (0, 255, 0, 255)
 | 
			
		||||
        assert im.getpixel((64, 32)) == (0, 255, 0, 255)
 | 
			
		||||
 | 
			
		||||
    # test APNG_DISPOSE_OP_PREVIOUS
 | 
			
		||||
    disposal = [
 | 
			
		||||
| 
						 | 
				
			
			@ -467,8 +474,8 @@ class TestFilePng(PillowTestCase):
 | 
			
		|||
    )
 | 
			
		||||
    with Image.open(test_file) as im:
 | 
			
		||||
        im.seek(3)
 | 
			
		||||
            self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
 | 
			
		||||
            self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
 | 
			
		||||
        assert im.getpixel((0, 0)) == (0, 255, 0, 255)
 | 
			
		||||
        assert im.getpixel((64, 32)) == (0, 255, 0, 255)
 | 
			
		||||
 | 
			
		||||
    disposal = [
 | 
			
		||||
        PngImagePlugin.APNG_DISPOSE_OP_NONE,
 | 
			
		||||
| 
						 | 
				
			
			@ -483,11 +490,12 @@ class TestFilePng(PillowTestCase):
 | 
			
		|||
    )
 | 
			
		||||
    with Image.open(test_file) as im:
 | 
			
		||||
        im.seek(1)
 | 
			
		||||
            self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
 | 
			
		||||
            self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
 | 
			
		||||
        assert im.getpixel((0, 0)) == (0, 255, 0, 255)
 | 
			
		||||
        assert im.getpixel((64, 32)) == (0, 255, 0, 255)
 | 
			
		||||
 | 
			
		||||
    def test_apng_save_blend(self):
 | 
			
		||||
        test_file = self.tempfile("temp.png")
 | 
			
		||||
 | 
			
		||||
def test_apng_save_blend(tmp_path):
 | 
			
		||||
    test_file = str(tmp_path / "temp.png")
 | 
			
		||||
    size = (128, 64)
 | 
			
		||||
    red = Image.new("RGBA", size, (255, 0, 0, 255))
 | 
			
		||||
    green = Image.new("RGBA", size, (0, 255, 0, 255))
 | 
			
		||||
| 
						 | 
				
			
			@ -508,8 +516,8 @@ class TestFilePng(PillowTestCase):
 | 
			
		|||
    )
 | 
			
		||||
    with Image.open(test_file) as im:
 | 
			
		||||
        im.seek(2)
 | 
			
		||||
            self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
 | 
			
		||||
            self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
 | 
			
		||||
        assert im.getpixel((0, 0)) == (0, 255, 0, 255)
 | 
			
		||||
        assert im.getpixel((64, 32)) == (0, 255, 0, 255)
 | 
			
		||||
 | 
			
		||||
    # test APNG_BLEND_OP_SOURCE on transparent color
 | 
			
		||||
    blend = [
 | 
			
		||||
| 
						 | 
				
			
			@ -526,8 +534,8 @@ class TestFilePng(PillowTestCase):
 | 
			
		|||
    )
 | 
			
		||||
    with Image.open(test_file) as im:
 | 
			
		||||
        im.seek(2)
 | 
			
		||||
            self.assertEqual(im.getpixel((0, 0)), (0, 0, 0, 0))
 | 
			
		||||
            self.assertEqual(im.getpixel((64, 32)), (0, 0, 0, 0))
 | 
			
		||||
        assert im.getpixel((0, 0)) == (0, 0, 0, 0)
 | 
			
		||||
        assert im.getpixel((64, 32)) == (0, 0, 0, 0)
 | 
			
		||||
 | 
			
		||||
    # test APNG_BLEND_OP_OVER
 | 
			
		||||
    red.save(
 | 
			
		||||
| 
						 | 
				
			
			@ -540,8 +548,8 @@ class TestFilePng(PillowTestCase):
 | 
			
		|||
    )
 | 
			
		||||
    with Image.open(test_file) as im:
 | 
			
		||||
        im.seek(1)
 | 
			
		||||
            self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
 | 
			
		||||
            self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
 | 
			
		||||
        assert im.getpixel((0, 0)) == (0, 255, 0, 255)
 | 
			
		||||
        assert im.getpixel((64, 32)) == (0, 255, 0, 255)
 | 
			
		||||
        im.seek(2)
 | 
			
		||||
            self.assertEqual(im.getpixel((0, 0)), (0, 255, 0, 255))
 | 
			
		||||
            self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
 | 
			
		||||
        assert im.getpixel((0, 0)) == (0, 255, 0, 255)
 | 
			
		||||
        assert im.getpixel((64, 32)) == (0, 255, 0, 255)
 | 
			
		||||
| 
						 | 
				
			
			
 | 
			
		|||
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		Reference in New Issue
	
	Block a user