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Corrected test #2

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merged 2 commits into from
Oct 10, 2022
Merged

Corrected test #2

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982d7c4
Corrected test
radarhere Oct 10, 2022
0b2cef5
Updated error message
radarhere Oct 10, 2022
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7 changes: 4 additions & 3 deletions Tests/test_image_access.py
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Original file line number Diff line number Diff line change
Expand Up @@ -345,13 +345,14 @@ def test_reference_counting(self):

@pytest.mark.parametrize("mode", ("P", "PA"))
def test_p_putpixel_rgb_rgba(self, mode):
for color in [(255, 0, 0), (255, 0, 0, 127)]:
for color in ((255, 0, 0), (255, 0, 0, 127 if mode == "PA" else 255)):
im = Image.new(mode, (1, 1))
access = PyAccess.new(im, False)
access.putpixel((0, 0), color)

alpha = color[3] if len(color) == 4 and mode == "PA" else 255
assert im.convert("RGBA").getpixel((0, 0)) == (255, 0, 0, alpha)
if len(color) == 3:
color += (255,)
assert im.convert("RGBA").getpixel((0, 0)) == color


class TestImagePutPixelError(AccessTest):
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11 changes: 6 additions & 5 deletions Tests/test_imagepalette.py
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Expand Up @@ -50,11 +50,12 @@ def test_getcolor():
palette.getcolor("unknown")


def test_getcolor_raises_on_incompatible_color():
palette = ImagePalette.ImagePalette(mode="RGB")
# Opaque RGBA colors should work
palette.getcolor((0, 0, 0, 255))
assert palette.getcolor((0, 0, 0)) == palette.getcolor((0, 0, 0, 255))
def test_getcolor_rgba_color_rgb_palette():
palette = ImagePalette.ImagePalette("RGB")

# Opaque RGBA colors are converted
assert palette.getcolor((0, 0, 0, 255)) == palette.getcolor((0, 0, 0))

with pytest.raises(ValueError):
palette.getcolor((0, 0, 0, 128))

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12 changes: 6 additions & 6 deletions src/PIL/ImagePalette.py
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Expand Up @@ -114,13 +114,13 @@ def getcolor(self, color, image=None):
if self.rawmode:
raise ValueError("palette contains raw palette data")
if isinstance(color, tuple):
if self.mode == "RGB" and len(color) == 4:
if color[3] == 255:
if self.mode == "RGB":
if len(color) == 4:
if color[3] != 255:
raise ValueError(
"cannot add non-opaque RGBA color to RGB palette"
)
color = color[:3]
else:
raise ValueError(
"RGB ImagePalette can't handle non-opaque RGBA colors"
)
elif self.mode == "RGBA":
if len(color) == 3:
color += (255,)
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