Pillow/Tests/test_image_fromqimage.py
2024-03-02 13:12:17 +11:00

66 lines
1.3 KiB
Python

from __future__ import annotations
import warnings
import pytest
from PIL import Image
with warnings.catch_warnings():
warnings.simplefilter("ignore", category=DeprecationWarning)
from PIL import ImageQt
from .helper import assert_image_equal, hopper
pytestmark = pytest.mark.skipif(
not ImageQt.qt_is_installed, reason="Qt bindings are not installed"
)
ims = [
hopper(),
Image.open("Tests/images/transparent.png"),
Image.open("Tests/images/7x13.png"),
]
def teardown_module() -> None:
for im in ims:
im.close()
def roundtrip(expected: Image.Image) -> None:
# PIL -> Qt
intermediate = expected.toqimage()
# Qt -> PIL
result = ImageQt.fromqimage(intermediate)
if intermediate.hasAlphaChannel():
assert_image_equal(result, expected.convert("RGBA"))
else:
assert_image_equal(result, expected.convert("RGB"))
def test_sanity_1() -> None:
for im in ims:
roundtrip(im.convert("1"))
def test_sanity_rgb() -> None:
for im in ims:
roundtrip(im.convert("RGB"))
def test_sanity_rgba() -> None:
for im in ims:
roundtrip(im.convert("RGBA"))
def test_sanity_l() -> None:
for im in ims:
roundtrip(im.convert("L"))
def test_sanity_p() -> None:
for im in ims:
roundtrip(im.convert("P"))