Add DummyImport for sqlalchemy_utils

Signed-off-by: Erik Wrede <erikwrede2@gmail.com>

Author: erikwrede

graphene_sqlalchemy/tests/test_utils.py

@@ -4,7 +4,7 @@
 from graphene import Enum, List, ObjectType, Schema, String
 
 from ..utils import (get_session, sort_argument_for_model, sort_enum_for_model,
-                     to_enum_value_name, to_type_name)
+                     to_enum_value_name, to_type_name, DummyImport)
 from .models import Base, Editor, Pet
 
 
@@ -99,3 +99,7 @@ class MultiplePK(Base):
     assert set(arg.default_value) == set(
         (MultiplePK.foo.name + "_asc", MultiplePK.bar.name + "_asc")
     )
+
+def test_dummy_import():
+    dummy_module = DummyImport()
+    assert dummy_module.foo == object

graphene_sqlalchemy/utils.py

@@ -206,3 +206,9 @@ def registry_sqlalchemy_model_from_str(model_name: str) -> Optional[Any]:
         return next(filter(lambda x: x.__name__ == model_name, list(get_global_registry()._registry.keys())))
     except StopIteration:
         pass
+
+
+class DummyImport:
+    """The dummy module returns 'object' for a query for any member"""
+    def __getattr__(self, name):
+        return object