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20 lines
634 B
Python
20 lines
634 B
Python
from __future__ import annotations
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from .helper import hopper
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def test_histogram() -> None:
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def histogram(mode: str) -> tuple[int, int, int]:
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h = hopper(mode).histogram()
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return len(h), min(h), max(h)
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assert histogram("1") == (256, 0, 10994)
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assert histogram("L") == (256, 0, 662)
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assert histogram("I") == (256, 0, 662)
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assert histogram("F") == (256, 0, 662)
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assert histogram("P") == (256, 0, 1551)
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assert histogram("RGB") == (768, 4, 675)
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assert histogram("RGBA") == (1024, 0, 16384)
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assert histogram("CMYK") == (1024, 0, 16384)
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assert histogram("YCbCr") == (768, 0, 1908)
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