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47 lines
1.2 KiB
Python
47 lines
1.2 KiB
Python
from __future__ import annotations
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from PIL import Image
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from .helper import hopper
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def test_palette() -> None:
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def palette(mode: str) -> list[int] | None:
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p = hopper(mode).getpalette()
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if p:
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return p[:10]
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return None
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assert palette("1") is None
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assert palette("L") is None
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assert palette("I") is None
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assert palette("F") is None
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assert palette("P") == [0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
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assert palette("RGB") is None
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assert palette("RGBA") is None
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assert palette("CMYK") is None
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assert palette("YCbCr") is None
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def test_palette_rawmode() -> None:
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im = Image.new("P", (1, 1))
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im.putpalette((1, 2, 3))
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for rawmode in ("RGB", None):
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rgb = im.getpalette(rawmode)
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assert rgb == [1, 2, 3]
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# Convert the RGB palette to RGBA
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rgba = im.getpalette("RGBA")
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assert rgba == [1, 2, 3, 255]
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im.putpalette((1, 2, 3, 4), "RGBA")
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# Convert the RGBA palette to RGB
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rgb = im.getpalette("RGB")
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assert rgb == [1, 2, 3]
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for rawmode in ("RGBA", None):
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rgba = im.getpalette(rawmode)
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assert rgba == [1, 2, 3, 4]
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