mirror of
https://github.com/python-pillow/Pillow.git
synced 2025-01-13 18:56:17 +03:00
Use context manager for APNG tests
This commit is contained in:
Peter Rowlands
Andrew Murray
parent
0f84fa7707
commit
d05b73cd08
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@ -11,14 +11,14 @@ class TestFilePng(PillowTestCase):
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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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im = Image.open("Tests/images/apng/single_frame.png")
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with Image.open("Tests/images/apng/single_frame.png") as im:
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self.assertTrue(im.is_animated)
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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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im = Image.open("Tests/images/apng/single_frame_default.png")
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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.get_format_mimetype(), "image/apng")
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self.assertTrue(im.info.get("default_image"))
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@ -41,102 +41,104 @@ class TestFilePng(PillowTestCase):
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self.assertEqual(im.getpixel((64, 32)), (0, 255, 0, 255))
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def test_apng_fdat(self):
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im = Image.open("Tests/images/apng/split_fdat.png")
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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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im = Image.open("Tests/images/apng/split_fdat_zero_chunk.png")
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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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def test_apng_dispose(self):
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im = Image.open("Tests/images/apng/dispose_op_none.png")
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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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im = Image.open("Tests/images/apng/dispose_op_background.png")
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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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im = Image.open("Tests/images/apng/dispose_op_background_final.png")
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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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im = Image.open("Tests/images/apng/dispose_op_previous.png")
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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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im = Image.open("Tests/images/apng/dispose_op_previous_final.png")
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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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im = Image.open("Tests/images/apng/dispose_op_previous_first.png")
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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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def test_apng_dispose_region(self):
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im = Image.open("Tests/images/apng/dispose_op_none_region.png")
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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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im = Image.open("Tests/images/apng/dispose_op_background_before_region.png")
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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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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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im = Image.open("Tests/images/apng/dispose_op_background_region.png")
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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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im = Image.open("Tests/images/apng/dispose_op_previous_region.png")
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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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def test_apng_blend(self):
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im = Image.open("Tests/images/apng/blend_op_source_solid.png")
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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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im = Image.open("Tests/images/apng/blend_op_source_transparent.png")
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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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im = Image.open("Tests/images/apng/blend_op_source_near_transparent.png")
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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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im = Image.open("Tests/images/apng/blend_op_over.png")
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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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im = Image.open("Tests/images/apng/blend_op_over_near_transparent.png")
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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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def test_apng_chunk_order(self):
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im = Image.open("Tests/images/apng/fctl_actl.png")
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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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def test_apng_delay(self):
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im = Image.open("Tests/images/apng/delay.png")
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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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im.seek(2)
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@ -146,25 +148,25 @@ class TestFilePng(PillowTestCase):
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im.seek(4)
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self.assertEqual(im.info.get("duration"), 1000.0)
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im = Image.open("Tests/images/apng/delay_round.png")
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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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im.seek(2)
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self.assertEqual(im.info.get("duration"), 1000.0)
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im = Image.open("Tests/images/apng/delay_short_max.png")
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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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im.seek(2)
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self.assertEqual(im.info.get("duration"), 1000.0)
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im = Image.open("Tests/images/apng/delay_zero_denom.png")
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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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im.seek(2)
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self.assertEqual(im.info.get("duration"), 1000.0)
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im = Image.open("Tests/images/apng/delay_zero_numer.png")
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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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im.seek(2)
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@ -175,46 +177,46 @@ class TestFilePng(PillowTestCase):
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self.assertEqual(im.info.get("duration"), 1000.0)
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def test_apng_num_plays(self):
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im = Image.open("Tests/images/apng/num_plays.png")
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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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im = Image.open("Tests/images/apng/num_plays_1.png")
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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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def test_apng_mode(self):
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im = Image.open("Tests/images/apng/mode_16bit.png")
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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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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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im = Image.open("Tests/images/apng/mode_greyscale.png")
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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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im.seek(im.n_frames - 1)
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self.assertEqual(im.getpixel((0, 0)), 128)
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self.assertEqual(im.getpixel((64, 32)), 255)
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im = Image.open("Tests/images/apng/mode_greyscale_alpha.png")
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with Image.open("Tests/images/apng/mode_greyscale_alpha.png") as im:
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self.assertEqual(im.mode, "LA")
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im.seek(im.n_frames - 1)
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self.assertEqual(im.getpixel((0, 0)), (128, 191))
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self.assertEqual(im.getpixel((64, 32)), (128, 191))
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im = Image.open("Tests/images/apng/mode_palette.png")
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with Image.open("Tests/images/apng/mode_palette.png") as im:
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self.assertEqual(im.mode, "P")
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im.seek(im.n_frames - 1)
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im = im.convert("RGB")
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self.assertEqual(im.getpixel((0, 0)), (0, 255, 0))
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self.assertEqual(im.getpixel((64, 32)), (0, 255, 0))
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im = Image.open("Tests/images/apng/mode_palette_alpha.png")
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with Image.open("Tests/images/apng/mode_palette_alpha.png") as im:
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self.assertEqual(im.mode, "P")
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im.seek(im.n_frames - 1)
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im = im.convert("RGBA")
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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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im = Image.open("Tests/images/apng/mode_palette_1bit_alpha.png")
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with Image.open("Tests/images/apng/mode_palette_1bit_alpha.png") as im:
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self.assertEqual(im.mode, "P")
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im.seek(im.n_frames - 1)
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im = im.convert("RGBA")
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@ -222,50 +224,52 @@ class TestFilePng(PillowTestCase):
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self.assertEqual(im.getpixel((64, 32)), (0, 0, 255, 128))
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def test_apng_chunk_errors(self):
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im = Image.open("Tests/images/apng/chunk_no_actl.png")
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with Image.open("Tests/images/apng/chunk_no_actl.png") as im:
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self.assertFalse(im.is_animated)
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def open():
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im = Image.open("Tests/images/apng/chunk_multi_actl.png")
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with Image.open("Tests/images/apng/chunk_multi_actl.png") as im:
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im.load()
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self.assertFalse(im.is_animated)
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pytest.warns(UserWarning, open)
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with Image.open("Tests/images/apng/chunk_actl_after_idat.png") as im:
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self.assertFalse(im.is_animated)
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im = Image.open("Tests/images/apng/chunk_actl_after_idat.png")
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self.assertFalse(im.is_animated)
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im = Image.open("Tests/images/apng/chunk_no_fctl.png")
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with Image.open("Tests/images/apng/chunk_no_fctl.png") as im:
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with self.assertRaises(SyntaxError):
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im.seek(im.n_frames - 1)
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im = Image.open("Tests/images/apng/chunk_repeat_fctl.png")
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with Image.open("Tests/images/apng/chunk_repeat_fctl.png") as im:
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with self.assertRaises(SyntaxError):
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im.seek(im.n_frames - 1)
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im = Image.open("Tests/images/apng/chunk_no_fdat.png")
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with Image.open("Tests/images/apng/chunk_no_fdat.png") as im:
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with self.assertRaises(SyntaxError):
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im.seek(im.n_frames - 1)
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def test_apng_syntax_errors(self):
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def open():
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im = Image.open("Tests/images/apng/syntax_num_frames_zero.png")
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def open_frames_zero():
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with Image.open("Tests/images/apng/syntax_num_frames_zero.png") as im:
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self.assertFalse(im.is_animated)
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with self.assertRaises(OSError):
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im.load()
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pytest.warns(UserWarning, open)
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pytest.warns(UserWarning, open_frames_zero)
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def open():
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im = Image.open("Tests/images/apng/syntax_num_frames_zero_default.png")
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def open_frames_zero_default():
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with Image.open(
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"Tests/images/apng/syntax_num_frames_zero_default.png"
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) as im:
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self.assertFalse(im.is_animated)
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im.load()
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pytest.warns(UserWarning, open)
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pytest.warns(UserWarning, open_frames_zero_default)
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# we can handle this case gracefully
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exception = None
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im = Image.open("Tests/images/apng/syntax_num_frames_low.png")
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with Image.open("Tests/images/apng/syntax_num_frames_low.png") as im:
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try:
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im.seek(im.n_frames - 1)
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except Exception as e:
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@ -273,12 +277,12 @@ class TestFilePng(PillowTestCase):
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self.assertIsNone(exception)
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with self.assertRaises(SyntaxError):
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im = Image.open("Tests/images/apng/syntax_num_frames_high.png")
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with Image.open("Tests/images/apng/syntax_num_frames_high.png") as im:
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im.seek(im.n_frames - 1)
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im.load()
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def open():
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im = Image.open("Tests/images/apng/syntax_num_frames_invalid.png")
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with Image.open("Tests/images/apng/syntax_num_frames_invalid.png") as im:
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self.assertFalse(im.is_animated)
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im.load()
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@ -296,12 +300,12 @@ class TestFilePng(PillowTestCase):
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]
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for f in test_files:
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with self.assertRaises(SyntaxError):
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im = Image.open("Tests/images/apng/{0}".format(f))
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with Image.open("Tests/images/apng/{0}".format(f)) as im:
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im.seek(im.n_frames - 1)
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im.load()
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def test_apng_save(self):
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im = Image.open("Tests/images/apng/single_frame.png")
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with Image.open("Tests/images/apng/single_frame.png") as im:
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test_file = self.tempfile("temp.png")
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im.save(test_file, save_all=True)
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@ -313,10 +317,10 @@ class TestFilePng(PillowTestCase):
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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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im = Image.open("Tests/images/apng/single_frame_default.png")
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with Image.open("Tests/images/apng/single_frame_default.png") as im:
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frames = []
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for im in ImageSequence.Iterator(im):
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frames.append(im.copy())
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for frame_im in ImageSequence.Iterator(im):
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frames.append(frame_im.copy())
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frames[0].save(
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test_file, save_all=True, default_image=True, append_images=frames[1:]
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)
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@ -352,15 +356,15 @@ class TestFilePng(PillowTestCase):
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def test_apng_save_duration_loop(self):
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test_file = self.tempfile("temp.png")
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im = Image.open("Tests/images/apng/delay.png")
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with Image.open("Tests/images/apng/delay.png") as im:
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frames = []
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durations = []
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loop = im.info.get("loop")
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default_image = im.info.get("default_image")
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for i, im in enumerate(ImageSequence.Iterator(im)):
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frames.append(im.copy())
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for i, frame_im in enumerate(ImageSequence.Iterator(im)):
|
||||
frames.append(frame_im.copy())
|
||||
if i != 0 or not default_image:
|
||||
durations.append(im.info.get("duration", 0))
|
||||
durations.append(frame_im.info.get("duration", 0))
|
||||
frames[0].save(
|
||||
test_file,
|
||||
save_all=True,
|
||||
|
|
@ -369,6 +373,7 @@ class TestFilePng(PillowTestCase):
|
|||
duration=durations,
|
||||
loop=loop,
|
||||
)
|
||||
|
||||
with Image.open(test_file) as im:
|
||||
im.load()
|
||||
self.assertEqual(im.info.get("loop"), loop)
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user