gh-118121: Fix test_doctest.test_look_in_unwrapped (#118122)

Author: sobolevn

Lib/test/test_doctest/test_doctest.py

@@ -2545,14 +2545,29 @@ def __call__(self, *args, **kwargs):
         self.func(*args, **kwargs)
 
 @Wrapper
-def test_look_in_unwrapped():
+def wrapped():
     """
     Docstrings in wrapped functions must be detected as well.
 
     >>> 'one other test'
     'one other test'
     """
 
+def test_look_in_unwrapped():
+    """
+    Ensure that wrapped doctests work correctly.
+
+    >>> import doctest
+    >>> doctest.run_docstring_examples(
+    ...     wrapped, {}, name=wrapped.__name__, verbose=True)
+    Finding tests in wrapped
+    Trying:
+        'one other test'
+    Expecting:
+        'one other test'
+    ok
+    """
+
 @doctest_skip_if(support.check_impl_detail(cpython=False))
 def test_wrapped_c_func():
     """