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45 lines
1.2 KiB
Python
45 lines
1.2 KiB
Python
import pytest
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from PIL import Image, ImageQt
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from .helper import assert_image_equal, 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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def test_sanity(tmp_path):
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for mode in ("RGB", "RGBA", "L", "P", "1"):
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src = hopper(mode)
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data = ImageQt.toqimage(src)
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assert isinstance(data, QImage)
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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 QT4 and QT5
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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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continue
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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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with Image.open(tempfile) as reloaded:
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assert_image_equal(reloaded, src)
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