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add test for ico append_images

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ziplantil 2020-04-19 16:45:12 +03:00
parent 07b24c6e6e
commit 52b9b4310c
1 changed files with 18 additions and 0 deletions
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18
Tests/test_file_ico.py
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@ -85,6 +85,24 @@ def test_only_save_relevant_sizes(tmp_path):
assert im_saved.info["sizes"] == {(16, 16), (24, 24), (32, 32), (48, 48)}
def test_only_save_append_images(tmp_path):
"""append_images should work to provide alternative sizes"""
im = hopper()
provided_im = Image.new("RGBA", (32, 32), (255, 0, 0, 255))
outfile = str(tmp_path / "temp_saved_multi_icon.ico")
im.save(outfile, sizes = [(32, 32), (64, 64)], append_images = [provided_im])
with Image.open(outfile) as reread:
reread.size = (64, 64)
reread.load()
assert_image_equal(reread, hopper().resize((64, 64), Image.LANCZOS))
with Image.open(outfile) as reread:
reread.size = (32, 32)
reread.load()
assert_image_equal(reread, provided_im)
def test_unexpected_size():
# This image has been manually hexedited to state that it is 16x32
# while the image within is still 16x16