Fixed #30453 -- Fixed crash of simple_tag() and inclusion_tag() when function is wrapped.

getfullargspec() doesn't work with wrapped functions.

1 files changed, 20 insertions, 0 deletions

diff --git a/tests/template_tests/test_library.py b/tests/template_tests/test_library.py
index b7a1f73a2e..9fdb9b7aa1 100644
--- a/tests/template_tests/test_library.py
+++ b/tests/template_tests/test_library.py
@@ -1,3 +1,5 @@
+import functools
+
 from django.template import Library
 from django.template.base import Node
 from django.test import SimpleTestCase
@@ -61,6 +63,15 @@ class InclusionTagRegistrationTests(SimpleTestCase):
             return ''
         self.assertIn('name', self.library.tags)
 
+    def test_inclusion_tag_wrapped(self):
+        @self.library.inclusion_tag('template.html')
+        @functools.lru_cache(maxsize=32)
+        def func():
+            return ''
+        func_wrapped = self.library.tags['func'].__wrapped__
+        self.assertIs(func_wrapped, func)
+        self.assertTrue(hasattr(func_wrapped, 'cache_info'))
+
 
 class SimpleTagRegistrationTests(SimpleTestCase):
 
@@ -90,6 +101,15 @@ class SimpleTagRegistrationTests(SimpleTestCase):
         with self.assertRaisesMessage(ValueError, msg):
             self.library.simple_tag('invalid')
 
+    def test_simple_tag_wrapped(self):
+        @self.library.simple_tag
+        @functools.lru_cache(maxsize=32)
+        def func():
+            return ''
+        func_wrapped = self.library.tags['func'].__wrapped__
+        self.assertIs(func_wrapped, func)
+        self.assertTrue(hasattr(func_wrapped, 'cache_info'))
+
 
 class TagRegistrationTests(SimpleTestCase):