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Merge pull request #5331 from radarhere/png_bits

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Added test for saving PNG with bits keyword
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Hugo van Kemenade 2021-03-20 23:25:24 +02:00 committed by GitHub
commit e1e9569d8a
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1 changed files with 9 additions and 0 deletions
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Tests/test_file_png.py
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@ -625,6 +625,15 @@ class TestFilePng:
with Image.open("Tests/images/hopper_idat_after_image_end.png") as im: with Image.open("Tests/images/hopper_idat_after_image_end.png") as im:
assert im.text == {"TXT": "VALUE", "ZIP": "VALUE"} assert im.text == {"TXT": "VALUE", "ZIP": "VALUE"}
def test_specify_bits(self, tmp_path):
im = hopper("P")
out = str(tmp_path / "temp.png")
im.save(out, bits=4)
with Image.open(out) as reloaded:
assert len(reloaded.png.im_palette[1]) == 48
def test_exif(self): def test_exif(self):
# With an EXIF chunk # With an EXIF chunk
with Image.open("Tests/images/exif.png") as im: with Image.open("Tests/images/exif.png") as im: