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-rw-r--r--Lib/test/test_email/test__header_value_parser.py7
1 files changed, 7 insertions, 0 deletions
diff --git a/Lib/test/test_email/test__header_value_parser.py b/Lib/test/test_email/test__header_value_parser.py
index 14d1ff3..6291749 100644
--- a/Lib/test/test_email/test__header_value_parser.py
+++ b/Lib/test/test_email/test__header_value_parser.py
@@ -2690,6 +2690,13 @@ class Test_parse_mime_parameters(TestParserMixin, TestEmailBase):
# Defects are apparent missing *0*, and two 'out of sequence'.
[errors.InvalidHeaderDefect]*3),
+ # bpo-37461: Check that we don't go into an infinite loop.
+ 'extra_dquote': (
+ 'r*="\'a\'\\"',
+ ' r="\\""',
+ 'r*=\'a\'"',
+ [('r', '"')],
+ [errors.InvalidHeaderDefect]*2),
}
@parameterize