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src/img2pdf_test.py: Pillow >= 8.2.0 only uses half the palette size

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Johannes Schauer Marin Rodrigues 2021-04-07 11:14:59 +02:00
parent 129bd15b43
commit cb2243fd10
Signed by untrusted user: josch
GPG key ID: F2CBA5C78FBD83E1
1 changed files with 26 additions and 1 deletions
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27
src/img2pdf_test.py
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@ -6662,7 +6662,32 @@ def test_general(general_input, engine):
raise Exception("unhandled: %s" % (type(obj)))
y = pikepdf.open(out)
assert rec(x.Root) == rec(y.Root)
pydictx = rec(x.Root)
pydicty = rec(y.Root)
if f.endswith(os.path.sep + "animation.gif"):
# starting with PIL 8.2.0 the palette is half the size when encoding
# our test GIF image as PNG
#
# to still compare successfully, we truncate the expected palette
import PIL
if PIL.__version__ >= "8.2.0":
assert len(pydictx["/Pages"]["/Kids"]) == 2
for p in pydictx["/Pages"]["/Kids"]:
assert p["/Resources"]["/XObject"]["/Im0"]["/ColorSpace"][2] == 127
assert len(pydicty["/Pages"]["/Kids"]) == 2
for p in pydicty["/Pages"]["/Kids"]:
cs = p["/Resources"]["/XObject"]["/Im0"]["/ColorSpace"]
cs[2] = decimal.Decimal("127")
cs[3] = cs[3][:384]
else:
assert (
pydictx["/Pages"]["/Kids"][0]["/Resources"]["/XObject"]["/Im0"][
"/ColorSpace"
][2]
== 255
)
assert pydictx == pydicty
# the python-pil version 2.3.0-1ubuntu3 in Ubuntu does not have the
# close() method
try: