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70 lines
1.7 KiB
Python
70 lines
1.7 KiB
Python
from __future__ import annotations
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import warnings
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from typing import Generator
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import pytest
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from PIL import Image
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with warnings.catch_warnings():
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warnings.simplefilter("ignore", category=DeprecationWarning)
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from PIL import 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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@pytest.fixture
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def test_images() -> Generator[Image.Image, None, None]:
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ims = [
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hopper(),
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Image.open("Tests/images/transparent.png"),
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Image.open("Tests/images/7x13.png"),
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]
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try:
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yield ims
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finally:
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for im in ims:
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im.close()
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def roundtrip(expected: Image.Image) -> None:
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# PIL -> Qt
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intermediate = expected.toqimage()
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# Qt -> PIL
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result = ImageQt.fromqimage(intermediate)
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if intermediate.hasAlphaChannel():
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assert_image_equal(result, expected.convert("RGBA"))
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else:
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assert_image_equal(result, expected.convert("RGB"))
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def test_sanity_1(test_images: Generator[Image.Image, None, None]) -> None:
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for im in test_images:
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roundtrip(im.convert("1"))
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def test_sanity_rgb(test_images: Generator[Image.Image, None, None]) -> None:
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for im in test_images:
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roundtrip(im.convert("RGB"))
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def test_sanity_rgba(test_images: Generator[Image.Image, None, None]) -> None:
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for im in test_images:
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roundtrip(im.convert("RGBA"))
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def test_sanity_l(test_images: Generator[Image.Image, None, None]) -> None:
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for im in test_images:
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roundtrip(im.convert("L"))
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def test_sanity_p(test_images: Generator[Image.Image, None, None]) -> None:
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for im in test_images:
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roundtrip(im.convert("P"))
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