Pillow/Tests/test_imagefileio.py

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from tester import *
from PIL import Image
from PIL import ImageFileIO
def test_fileio():
class DumbFile:
def __init__(self, data):
self.data = data
def read(self, bytes=None):
assert_equal(bytes, None)
return self.data
def close(self):
pass
im1 = lena()
io = ImageFileIO.ImageFileIO(DumbFile(tostring(im1, "PPM")))
im2 = Image.open(io)
assert_image_equal(im1, im2)