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Always strip out date in postscript's test_savefig_to_stringio. #18420

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Merged
merged 1 commit into from
Sep 8, 2020
Merged

Always strip out date in postscript's test_savefig_to_stringio. #18420

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15 changes: 6 additions & 9 deletions lib/matplotlib/tests/test_backend_ps.py
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Original file line number Diff line number Diff line change
Expand Up @@ -39,10 +39,8 @@
'eps afm',
'eps with usetex'
])
def test_savefig_to_stringio(format, use_log, rcParams, orientation,
monkeypatch):
def test_savefig_to_stringio(format, use_log, rcParams, orientation):
mpl.rcParams.update(rcParams)
monkeypatch.setenv("SOURCE_DATE_EPOCH", "0") # For reproducibility.

fig, ax = plt.subplots()

Expand Down Expand Up @@ -70,12 +68,11 @@ def test_savefig_to_stringio(format, use_log, rcParams, orientation,
s_val = s_buf.getvalue().encode('ascii')
b_val = b_buf.getvalue()

if rcParams.get("ps.usedistiller") or rcParams.get("text.usetex"):
# Strip out CreationDate betcase ghostscript doesn't obey
# SOURCE_DATE_EPOCH. Note that in usetex mode, we *always* call
# gs_distill, even if ps.usedistiller is unset.
s_val = re.sub(b"(?<=\n%%CreationDate: ).*", b"", s_val)
b_val = re.sub(b"(?<=\n%%CreationDate: ).*", b"", b_val)
# Strip out CreationDate: ghostscript and cairo don't obey
# SOURCE_DATE_EPOCH, and that environment variable is already tested in
# test_determinism.
s_val = re.sub(b"(?<=\n%%CreationDate: ).*", b"", s_val)
b_val = re.sub(b"(?<=\n%%CreationDate: ).*", b"", b_val)

assert s_val == b_val.replace(b'\r\n', b'\n')

Expand Down