Pillow/Tests/test_image_load.py
2020-01-27 22:46:52 +11:00

41 lines
749 B
Python

import os
import pytest
from PIL import Image
from .helper import hopper
def test_sanity():
im = hopper()
pix = im.load()
assert pix[0, 0] == (20, 20, 70)
def test_close():
im = Image.open("Tests/images/hopper.gif")
im.close()
with pytest.raises(ValueError):
im.load()
with pytest.raises(ValueError):
im.getpixel((0, 0))
def test_contextmanager():
fn = None
with Image.open("Tests/images/hopper.gif") as im:
fn = im.fp.fileno()
os.fstat(fn)
with pytest.raises(OSError):
os.fstat(fn)
def test_contextmanager_non_exclusive_fp():
with open("Tests/images/hopper.gif", "rb") as fp:
with Image.open(fp):
pass
assert not fp.closed