web_test: Move an ignore_deprecation block

When warnings are in context-aware mode (the default in free-threaded
Python 3.14), the server captures the context from setUp and does not
see the warning filter installed in the test method. Move the warning
filter into the handler so it works consistently regardless of the
context_aware_warnings flag.

Updates #3501

diff --git a/tornado/test/web_test.py b/tornado/test/web_test.py
index 1d02730d8849f3a69647581b2b457fc0d14091ac..c18e250ee906bfe118a711245aecc84ca797517d 100644 (file)
--- a/tornado/test/web_test.py
+++ b/tornado/test/web_test.py
@@ -53,7 +53,6 @@ import logging
 import os
 import re
 import socket
-import sys
 import typing
 import unittest
 import urllib.parse
@@ -324,7 +323,8 @@ class CookieTest(WebTestCase):
         class SetCookieDeprecatedArgs(RequestHandler):
             def get(self):
                 # Mixed case is supported, but deprecated
-                self.set_cookie("a", "b", HttpOnly=True, pATH="/foo")
+                with ignore_deprecation():
+                    self.set_cookie("a", "b", HttpOnly=True, pATH="/foo")
 
         return [
             ("/set", SetCookieHandler),
@@ -423,13 +423,8 @@ class CookieTest(WebTestCase):
         self.assertEqual(headers[2], "c=1; HttpOnly; Path=/")
         self.assertEqual(headers[3], "d=1; Path=/")
 
-    @unittest.skipIf(
-        getattr(sys.flags, "context_aware_warnings", False),
-        "interaction with context-aware warnings is buggy",
-    )
     def test_set_cookie_deprecated(self):
-        with ignore_deprecation():
-            response = self.fetch("/set_deprecated")
+        response = self.fetch("/set_deprecated")
         header = response.headers.get("Set-Cookie")
         self.assertEqual(header, "a=b; HttpOnly; Path=/foo")