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test: Make mail_diff more strict

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This patch makes mail_diff more strict in its parsing, to ensure we
catch any encoding issues that may otherwise be masked by the default
compatibility policy.
This commit is contained in:
Alberto Bertogli
2023-12-23 14:08:36 +00:00
parent c4c330d7a4
commit e03594a2c7
1 changed files with 11 additions and 3 deletions
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14
test/util/mail_diff
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@@ -2,6 +2,7 @@
import difflib
import email.parser
import email.policy
import itertools
import mailbox
import sys
@@ -27,7 +28,7 @@ def flexible_eq(expected, got):
posG += 1
continue
if c == '*':
while posG < len(got) and got[posG] != '\n':
while posG < len(got) and got[posG] != '\t':
posG += 1
continue
continue
@@ -89,7 +90,14 @@ def msg_equals(expected, msg):
if __name__ == "__main__":
f1, f2 = sys.argv[1:3]
expected = email.parser.Parser().parse(open(f1))
msg = email.parser.Parser().parse(open(f2))
# We use a custom strict policy to do more strict content validation.
policy = email.policy.EmailPolicy(
utf8=True,
linesep="\r\n",
refold_source='none',
raise_on_defect=True)
expected = email.parser.Parser(policy=policy).parse(open(f1))
msg = email.parser.Parser(policy=policy).parse(open(f2))
sys.exit(0 if msg_equals(expected, msg) else 1)