DoctTest line numbers not found due to method wrapping (ipython#8861)

Closes ipython#8796

IPython/testing/plugin/pytest_ipdoctest.py

@@ -504,12 +504,18 @@ class MockAwareDocTestFinder(doctest.DocTestFinder):
 
             def _find_lineno(self, obj, source_lines):
                 """Doctest code does not take into account `@property`, this
-                is a hackish way to fix it.
+                is a hackish way to fix it. https://bugs.python.org/issue17446
 
-                https://bugs.python.org/issue17446
+                Wrapped Doctests will need to be unwrapped so the correct
+                line number is returned. This will be reported upstream. #8796
                 """
                 if isinstance(obj, property):
                     obj = getattr(obj, "fget", obj)
+
+                if hasattr(obj, "__wrapped__"):
+                    # Get the main obj in case of it being wrapped
+                    obj = inspect.unwrap(obj)
+
                 # Type ignored because this is a private function.
                 return super()._find_lineno(  # type:ignore[misc]
                     obj,