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Fixed #36499 -- Adjusted utils_tests.test_html.TestUtilsHtml.test_strip_tags following Python's HTMLParser new behavior.

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Python fixed a quadratic complexity processing for HTMLParser in:
https://github.com/python/cpython/commit/6eb6c5db.
This commit is contained in:
Natalia
2025-07-14 14:45:03 -03:00
committed by nessita
parent e4515dad7a
commit 2980627502
1 changed files with 24 additions and 2 deletions
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26
tests/utils_tests/test_html.py
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@@ -1,4 +1,5 @@
import os
import sys
from datetime import datetime
from django.core.exceptions import SuspiciousOperation
@@ -115,6 +116,21 @@ class TestUtilsHtml(SimpleTestCase):
self.check_output(linebreaks, lazystr(value), output)
def test_strip_tags(self):
# Python fixed a quadratic-time issue in HTMLParser in 3.13.6, 3.12.12,
# 3.11.14, 3.10.19, and 3.9.24. The fix slightly changes HTMLParser's
# output, so tests for particularly malformed input must handle both
# old and new results. The check below is temporary until all supported
# Python versions and CI workers include the fix. See:
# https://github.com/python/cpython/commit/6eb6c5db
min_fixed = {
(3, 14): (3, 14),
(3, 13): (3, 13, 6),
(3, 12): (3, 12, 12),
(3, 11): (3, 11, 14),
(3, 10): (3, 10, 19),
(3, 9): (3, 9, 24),
}
htmlparser_fixed = sys.version_info >= min_fixed[sys.version_info[:2]]
items = (
(
"<p>See: &#39;&eacute; is an apostrophe followed by e acute</p>",
@@ -142,10 +158,16 @@ class TestUtilsHtml(SimpleTestCase):
("&gotcha&#;<>", "&gotcha&#;<>"),
("<sc<!-- -->ript>test<<!-- -->/script>", "ript>test"),
("<script>alert()</script>&h", "alert()h"),
("><!" + ("&" * 16000) + "D", "><!" + ("&" * 16000) + "D"),
(
"><!" + ("&" * 16000) + "D",
">" if htmlparser_fixed else "><!" + ("&" * 16000) + "D",
),
("X<<<<br>br>br>br>X", "XX"),
("<" * 50 + "a>" * 50, ""),
(">" + "<a" * 500 + "a", ">" + "<a" * 500 + "a"),
(
">" + "<a" * 500 + "a",
">" if htmlparser_fixed else ">" + "<a" * 500 + "a",
),
("<a" * 49 + "a" * 951, "<a" * 49 + "a" * 951),
("<" + "a" * 1_002, "<" + "a" * 1_002),
)