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48 lines
1.3 KiB
Python
48 lines
1.3 KiB
Python
from __future__ import annotations
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from pathlib import Path
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import pytest
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from PIL import ImageQt
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from .helper import assert_image_equal, assert_image_equal_tofile, hopper
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pytestmark = pytest.mark.skipif(
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not ImageQt.qt_is_installed, reason="Qt bindings are not installed"
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)
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if ImageQt.qt_is_installed:
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from PIL.ImageQt import QImage
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@pytest.mark.parametrize("mode", ("RGB", "RGBA", "L", "P", "1"))
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def test_sanity(mode: str, tmp_path: Path) -> None:
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src = hopper(mode)
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data = ImageQt.toqimage(src)
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assert isinstance(data, QImage) # type: ignore[arg-type, misc]
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assert not data.isNull()
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# reload directly from the qimage
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rt = ImageQt.fromqimage(data)
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if mode in ("L", "P", "1"):
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assert_image_equal(rt, src.convert("RGB"))
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else:
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assert_image_equal(rt, src)
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if mode == "1":
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# BW appears to not save correctly on Qt
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# kicks out errors on console:
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# libpng warning: Invalid color type/bit depth combination
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# in IHDR
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# libpng error: Invalid IHDR data
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return
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# Test saving the file
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tempfile = str(tmp_path / f"temp_{mode}.png")
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data.save(tempfile)
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# Check that it actually worked.
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assert_image_equal_tofile(src, tempfile)
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