test_file_tar: skip if codecs are not available.

The .tar test requires both jpeg & zlib support. If one of the two is
unavailable, run the test for the second one. If both are unavailable,
skip the test.
This commit is contained in:
Michał Górny 2013-04-21 10:04:58 +02:00
parent d1c6db88d4
commit 6afa11ec02

View File

@ -2,21 +2,27 @@ from tester import *
from PIL import Image, TarIO
codecs = dir(Image.core)
if "zip_decoder" not in codecs and "jpeg_decoder" not in codecs:
skip("neither jpeg nor zip support not available")
# sample ppm stream
tarfile = "Images/lena.tar"
def test_sanity():
tar = TarIO.TarIO(tarfile, 'lena.png')
im = Image.open(tar)
im.load()
assert_equal(im.mode, "RGB")
assert_equal(im.size, (128, 128))
assert_equal(im.format, "PNG")
if "zip_decoder" in codecs:
tar = TarIO.TarIO(tarfile, 'lena.png')
im = Image.open(tar)
im.load()
assert_equal(im.mode, "RGB")
assert_equal(im.size, (128, 128))
assert_equal(im.format, "PNG")
tar = TarIO.TarIO(tarfile, 'lena.jpg')
im = Image.open(tar)
im.load()
assert_equal(im.mode, "RGB")
assert_equal(im.size, (128, 128))
assert_equal(im.format, "JPEG")
if "jpeg_decoder" in codecs:
tar = TarIO.TarIO(tarfile, 'lena.jpg')
im = Image.open(tar)
im.load()
assert_equal(im.mode, "RGB")
assert_equal(im.size, (128, 128))
assert_equal(im.format, "JPEG")