diff --git a/tests/test_tutorial/test_dependencies/test_tutorial010.py b/tests/test_tutorial/test_dependencies/test_tutorial010.py
new file mode 100644
index 000000000..6d3815ada
--- /dev/null
+++ b/tests/test_tutorial/test_dependencies/test_tutorial010.py
@@ -0,0 +1,29 @@
+from typing import Annotated, Any
+from unittest.mock import Mock, patch
+
+from fastapi import Depends, FastAPI
+from fastapi.testclient import TestClient
+
+from docs_src.dependencies.tutorial010_py39 import get_db
+
+
+def test_get_db():
+    app = FastAPI()
+
+    @app.get("/")
+    def read_root(c: Annotated[Any, Depends(get_db)]):
+        return {"c": str(c)}
+
+    client = TestClient(app)
+
+    dbsession_mock = Mock()
+
+    with patch(
+        "docs_src.dependencies.tutorial010_py39.DBSession",
+        return_value=dbsession_mock,
+        create=True,
+    ):
+        response = client.get("/")
+
+    assert response.status_code == 200
+    assert response.json() == {"c": str(dbsession_mock)}