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Added disposal test

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This commit is contained in:
Andrew Murray 2020-06-29 22:02:01 +10:00
parent bd466c41c1
commit cd01a5ab9f
1 changed files with 20 additions and 0 deletions
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Tests/test_file_apng.py
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@ -494,6 +494,26 @@ def test_apng_save_disposal(tmp_path):
assert im.getpixel((64, 32)) == (0, 255, 0, 255) assert im.getpixel((64, 32)) == (0, 255, 0, 255)
def test_apng_save_disposal_previous(tmp_path):
test_file = str(tmp_path / "temp.png")
size = (128, 64)
transparent = Image.new("RGBA", size, (0, 0, 0, 0))
red = Image.new("RGBA", size, (255, 0, 0, 255))
green = Image.new("RGBA", size, (0, 255, 0, 255))
# test APNG_DISPOSE_OP_NONE
transparent.save(
test_file,
save_all=True,
append_images=[red, green],
disposal=PngImagePlugin.APNG_DISPOSE_OP_PREVIOUS,
)
with Image.open(test_file) as im:
im.seek(2)
assert im.getpixel((0, 0)) == (0, 255, 0, 255)
assert im.getpixel((64, 32)) == (0, 255, 0, 255)
def test_apng_save_blend(tmp_path): def test_apng_save_blend(tmp_path):
test_file = str(tmp_path / "temp.png") test_file = str(tmp_path / "temp.png")
size = (128, 64) size = (128, 64)