[4.1.x] Fixed #22078 -- Fixed crash of Feed with decorated methods.

Backport of 8c0886b068ba4e224dd78104b93c9638b860b398 from main.

1 files changed, 29 insertions, 2 deletions

diff --git a/tests/syndication_tests/tests.py b/tests/syndication_tests/tests.py
index b5338738e5..dc4232e61d 100644
--- a/tests/syndication_tests/tests.py
+++ b/tests/syndication_tests/tests.py
@@ -196,11 +196,38 @@ class SyndicationFeedTest(FeedTestCase):
                 item.getElementsByTagName("guid")[0].attributes.get("isPermaLink")
             )
 
-    def test_rss2_feed_with_static_methods(self):
-        response = self.client.get("/syndication/rss2/with-static-methods/")
+    def test_rss2_feed_with_decorated_methods(self):
+        response = self.client.get("/syndication/rss2/with-decorated-methods/")
         doc = minidom.parseString(response.content)
         chan = doc.getElementsByTagName("rss")[0].getElementsByTagName("channel")[0]
         self.assertCategories(chan, ["javascript", "vue"])
+        self.assertChildNodeContent(
+            chan,
+            {
+                "title": "Overridden title -- decorated by @wraps.",
+                "description": "Overridden description -- decorated by @wraps.",
+                "ttl": "800 -- decorated by @wraps.",
+                "copyright": "Copyright (c) 2022, John Doe -- decorated by @wraps.",
+            },
+        )
+        items = chan.getElementsByTagName("item")
+        self.assertChildNodeContent(
+            items[0],
+            {
+                "title": (
+                    f"Overridden item title: {self.e1.title} -- decorated by @wraps."
+                ),
+                "description": "Overridden item description -- decorated by @wraps.",
+            },
+        )
+
+    def test_rss2_feed_with_wrong_decorated_methods(self):
+        msg = (
+            "Feed method 'item_description' decorated by 'wrapper' needs to use "
+            "@functools.wraps."
+        )
+        with self.assertRaisesMessage(ImproperlyConfigured, msg):
+            self.client.get("/syndication/rss2/with-wrong-decorated-methods/")
 
     def test_rss2_feed_guid_permalink_false(self):
         """