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51 lines
1.2 KiB
Python
51 lines
1.2 KiB
Python
from __future__ import annotations
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from PIL import Image
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def test_interface() -> None:
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im = Image.new("RGBA", (1, 1), (1, 2, 3, 0))
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assert im.getpixel((0, 0)) == (1, 2, 3, 0)
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im = Image.new("RGBA", (1, 1), (1, 2, 3))
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assert im.getpixel((0, 0)) == (1, 2, 3, 255)
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im.putalpha(Image.new("L", im.size, 4))
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assert im.getpixel((0, 0)) == (1, 2, 3, 4)
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im.putalpha(5)
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assert im.getpixel((0, 0)) == (1, 2, 3, 5)
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def test_promote() -> None:
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im = Image.new("L", (1, 1), 1)
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assert im.getpixel((0, 0)) == 1
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im.putalpha(2)
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assert im.mode == "LA"
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assert im.getpixel((0, 0)) == (1, 2)
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im = Image.new("P", (1, 1), 1)
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assert im.getpixel((0, 0)) == 1
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im.putalpha(2)
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assert im.mode == "PA"
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assert im.getpixel((0, 0)) == (1, 2)
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im = Image.new("RGB", (1, 1), (1, 2, 3))
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assert im.getpixel((0, 0)) == (1, 2, 3)
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im.putalpha(4)
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assert im.mode == "RGBA"
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assert im.getpixel((0, 0)) == (1, 2, 3, 4)
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def test_readonly() -> None:
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im = Image.new("RGB", (1, 1), (1, 2, 3))
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im.readonly = 1
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im.putalpha(4)
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assert not im.readonly
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assert im.mode == "RGBA"
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assert im.getpixel((0, 0)) == (1, 2, 3, 4)
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