Pillow/Tests/test_file_tar.py

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import pytest
from PIL import Image, TarIO, features
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from .helper import is_pypy
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# Sample tar archive
TEST_TAR_FILE = "Tests/images/hopper.tar"
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def test_sanity():
for codec, test_path, format in [
["zlib", "hopper.png", "PNG"],
["jpg", "hopper.jpg", "JPEG"],
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]:
if features.check(codec):
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with TarIO.TarIO(TEST_TAR_FILE, test_path) as tar:
with Image.open(tar) as im:
im.load()
assert im.mode == "RGB"
assert im.size == (128, 128)
assert im.format == format
@pytest.mark.skipif(is_pypy(), reason="Requires CPython")
def test_unclosed_file():
def open():
TarIO.TarIO(TEST_TAR_FILE, "hopper.jpg")
pytest.warns(ResourceWarning, open)
def test_close():
with pytest.warns(None) as record:
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tar = TarIO.TarIO(TEST_TAR_FILE, "hopper.jpg")
tar.close()
assert not record
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def test_contextmanager():
with pytest.warns(None) as record:
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with TarIO.TarIO(TEST_TAR_FILE, "hopper.jpg"):
pass
assert not record