mirror of
https://github.com/python-pillow/Pillow.git
synced 2025-11-04 09:57:43 +03:00
95 lines
2.6 KiB
Python
95 lines
2.6 KiB
Python
import pickle
|
|
|
|
import pytest
|
|
|
|
from PIL import Image
|
|
|
|
from .helper import skip_unless_feature
|
|
|
|
|
|
def helper_pickle_file(tmp_path, pickle, protocol, test_file, mode):
|
|
# Arrange
|
|
with Image.open(test_file) as im:
|
|
filename = str(tmp_path / "temp.pkl")
|
|
if mode:
|
|
im = im.convert(mode)
|
|
|
|
# Act
|
|
with open(filename, "wb") as f:
|
|
pickle.dump(im, f, protocol)
|
|
with open(filename, "rb") as f:
|
|
loaded_im = pickle.load(f)
|
|
|
|
# Assert
|
|
assert im == loaded_im
|
|
|
|
|
|
def helper_pickle_string(pickle, protocol, test_file, mode):
|
|
with Image.open(test_file) as im:
|
|
if mode:
|
|
im = im.convert(mode)
|
|
|
|
# Act
|
|
dumped_string = pickle.dumps(im, protocol)
|
|
loaded_im = pickle.loads(dumped_string)
|
|
|
|
# Assert
|
|
assert im == loaded_im
|
|
|
|
|
|
@pytest.mark.parametrize(
|
|
("test_file", "test_mode"),
|
|
[
|
|
("Tests/images/hopper.jpg", None),
|
|
("Tests/images/hopper.jpg", "L"),
|
|
("Tests/images/hopper.jpg", "PA"),
|
|
pytest.param(
|
|
"Tests/images/hopper.webp", None, marks=skip_unless_feature("webp")
|
|
),
|
|
("Tests/images/hopper.tif", None),
|
|
("Tests/images/test-card.png", None),
|
|
("Tests/images/zero_bb.png", None),
|
|
("Tests/images/zero_bb_scale2.png", None),
|
|
("Tests/images/non_zero_bb.png", None),
|
|
("Tests/images/non_zero_bb_scale2.png", None),
|
|
("Tests/images/p_trns_single.png", None),
|
|
("Tests/images/pil123p.png", None),
|
|
("Tests/images/itxt_chunks.png", None),
|
|
],
|
|
)
|
|
def test_pickle_image(tmp_path, test_file, test_mode):
|
|
# Act / Assert
|
|
for protocol in range(0, pickle.HIGHEST_PROTOCOL + 1):
|
|
helper_pickle_string(pickle, protocol, test_file, test_mode)
|
|
helper_pickle_file(tmp_path, pickle, protocol, test_file, test_mode)
|
|
|
|
|
|
def test_pickle_la_mode_with_palette(tmp_path):
|
|
# Arrange
|
|
filename = str(tmp_path / "temp.pkl")
|
|
with Image.open("Tests/images/hopper.jpg") as im:
|
|
im = im.convert("PA")
|
|
|
|
# Act / Assert
|
|
for protocol in range(0, pickle.HIGHEST_PROTOCOL + 1):
|
|
im.mode = "LA"
|
|
with open(filename, "wb") as f:
|
|
pickle.dump(im, f, protocol)
|
|
with open(filename, "rb") as f:
|
|
loaded_im = pickle.load(f)
|
|
|
|
im.mode = "PA"
|
|
assert im == loaded_im
|
|
|
|
|
|
@skip_unless_feature("webp")
|
|
def test_pickle_tell():
|
|
# Arrange
|
|
image = Image.open("Tests/images/hopper.webp")
|
|
|
|
# Act: roundtrip
|
|
unpickled_image = pickle.loads(pickle.dumps(image))
|
|
|
|
# Assert
|
|
assert unpickled_image.tell() == 0
|