mirror of
https://github.com/python-pillow/Pillow.git
synced 2024-11-13 21:26:46 +03:00
49 lines
1.1 KiB
Python
49 lines
1.1 KiB
Python
from tester import *
|
|
|
|
from PIL import Image
|
|
|
|
codecs = dir(Image.core)
|
|
|
|
if "gif_encoder" not in codecs or "gif_decoder" not in codecs:
|
|
skip("gif support not available") # can this happen?
|
|
|
|
# sample gif stream
|
|
file = "Images/lena.gif"
|
|
with open(file, "rb") as f:
|
|
data = f.read()
|
|
|
|
def test_sanity():
|
|
im = Image.open(file)
|
|
im.load()
|
|
assert_equal(im.mode, "P")
|
|
assert_equal(im.size, (128, 128))
|
|
assert_equal(im.format, "GIF")
|
|
|
|
def test_optimize():
|
|
def test(optimize):
|
|
im = Image.new("L", (1, 1), 0)
|
|
file = BytesIO()
|
|
im.save(file, "GIF", optimize=optimize)
|
|
return len(file.getvalue())
|
|
assert_equal(test(0), 800)
|
|
assert_equal(test(1), 38)
|
|
|
|
def test_roundtrip():
|
|
out = tempfile('temp.gif')
|
|
im = lena()
|
|
im.save(out)
|
|
reread = Image.open(out)
|
|
|
|
assert_image_similar(reread.convert('RGB'), im, 50)
|
|
|
|
def test_roundtrip2():
|
|
#see https://github.com/python-imaging/Pillow/issues/403
|
|
out = 'temp.gif'#tempfile('temp.gif')
|
|
im = Image.open('Images/lena.gif')
|
|
im2 = im.copy()
|
|
im2.save(out)
|
|
reread = Image.open(out)
|
|
|
|
assert_image_similar(reread.convert('RGB'), lena(), 50)
|
|
|