fix: get_base_class correct work with patched functions

fastapi_depends_ext/utils.py

@@ -13,7 +13,11 @@ def _get_func(instance, func) -> callable:
     if type(func) is property:
         return _get_func(instance, func.fget(instance))
     elif type(func) in (classmethod, staticmethod) or inspect.ismethod(func):
-        return func.__func__
+        f = func.__func__
+        if hasattr(f, "__origin__"):
+            return _get_func(instance, f.__origin__)
+        else:
+            return f
     elif callable(func):
         return func
     else:

tests/utils/test_get_base_class.py

@@ -3,6 +3,7 @@
 import pytest
 
 from fastapi_depends_ext.utils import get_base_class
+from fastapi_depends_ext.utils import patch_defaults
 from tests.utils_for_tests import SimpleDependency
 
 
@@ -150,3 +151,17 @@ def test_get_base_class__class_defined_not_callable__AttributeError(_method):
 
     with pytest.raises(TypeError, match=re.escape(f"Incorrect type of `{instance.method}`")):
         get_base_class(instance, "method", instance.method)
+
+
+@pytest.mark.parametrize("_method", supported_callable)
+def test_get_base_class__patched_method__correct_class(_method):
+    class TestClass:
+        def __init__(self):
+            setattr(self, "method", patch_defaults(self.method))
+
+        def method(self):
+            pass
+
+    instance = TestClass()
+
+    assert get_base_class(instance, "method", instance.method) is TestClass