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docs/en/docs/tutorial/dependencies/lifespan-scoped-dependencies.md

@@ -4,68 +4,68 @@ So far we've used dependencies which are "endpoint scoped". Meaning, they are
 called again and again for every incoming request to the endpoint. However,
 this is not ideal for all kinds of dependencies.
 
-Sometimes dependencies have a large setup/teardown time, or there is a need 
+Sometimes dependencies have a large setup/teardown time, or there is a need
-for their value to be shared throughout the lifespan of the application. An 
+for their value to be shared throughout the lifespan of the application. An
-example of this would be a connection to a database. Databases are typically 
+example of this would be a connection to a database. Databases are typically
-less efficient when working with lots of connections and would prefer that 
+less efficient when working with lots of connections and would prefer that
-clients would create a single connection for their operations. 
+clients would create a single connection for their operations.
 
 For such cases, you might want to use "lifespan scoped" dependencies.
 
 ## Intro
 
-Lifespan scoped dependencies work similarly to the dependencies we've worked 
+Lifespan scoped dependencies work similarly to the dependencies we've worked
 with so far (which are endpoint scoped). However, they are called once and only
-once in the application's lifespan (instead of being called again and again for 
+once in the application's lifespan (instead of being called again and again for
-every request). The returned value will be shared across all requests that need 
+every request). The returned value will be shared across all requests that need
 it.
 
 
 ## Create a lifespan scoped dependency
 
-You may declare a dependency as a lifespan scoped dependency by passing 
+You may declare a dependency as a lifespan scoped dependency by passing
 `dependency_scope="lifespan"` to the `Depends` function:
 
 {* ../../docs_src/dependencies/tutorial013a_an_py39.py hl[16] *}
 
 /// tip
 
-In the example above we saved the annotation to a separate variable, and then 
+In the example above we saved the annotation to a separate variable, and then
-reused it in our endpoints. This is not a requirement, we could also declare 
+reused it in our endpoints. This is not a requirement, we could also declare
-the exact same annotation in both endpoints. However, it is recommended that you 
+the exact same annotation in both endpoints. However, it is recommended that you
-do save the annotation to a variable so you won't accidentally forget to pass 
+do save the annotation to a variable so you won't accidentally forget to pass
 `dependency_scope="lifespan"` to some of the endpoints (Causing the endpoint
 to create a new database connection for every request).
 
 ///
 
 In this example, the `get_database_connection` dependency will be executed once,
-during the application's startup. **FastAPI** will internally save the resulting 
+during the application's startup. **FastAPI** will internally save the resulting
-connection object, and whenever the `read_users` and `read_items` endpoints are 
+connection object, and whenever the `read_users` and `read_items` endpoints are
 called, they will be using the previously saved connection. Once the application
 shuts down, **FastAPI** will make sure to gracefully close the connection object.
 
 ## The `use_cache` argument
 
-The `use_cache` argument works similarly to the way it worked with endpoint 
+The `use_cache` argument works similarly to the way it worked with endpoint
 scoped dependencies. Meaning as **FastAPI** gathers lifespan scoped dependencies, it
 will cache dependencies it already encountered before. However, you can disable
 this behavior by passing `use_cache=False` to `Depends`:
 
 {* ../../docs_src/dependencies/tutorial013b_an_py39.py hl[16] *}
 
-In this example, the `read_users` and `read_groups` endpoints are using 
+In this example, the `read_users` and `read_groups` endpoints are using
-`use_cache=False` whereas the `read_items` and `read_item` are using 
+`use_cache=False` whereas the `read_items` and `read_item` are using
-`use_cache=True`. That means that we'll have a total of 3 connections created 
+`use_cache=True`. That means that we'll have a total of 3 connections created
-for the duration of the application's lifespan. One connection will be shared 
+for the duration of the application's lifespan. One connection will be shared
-across all requests for the `read_items` and `read_item` endpoints. A second 
+across all requests for the `read_items` and `read_item` endpoints. A second
-connection will be shared across all requests for the `read_users` endpoint. The 
+connection will be shared across all requests for the `read_users` endpoint. The
-third and final connection will be shared across all requests for the 
+third and final connection will be shared across all requests for the
 `read_groups` endpoint.
 
 
 ## Lifespan Scoped Sub-Dependencies
-Just like with endpoint scoped dependencies, lifespan scoped dependencies may 
+Just like with endpoint scoped dependencies, lifespan scoped dependencies may
 use other lifespan scoped sub-dependencies themselves:
 
 {* ../../docs_src/dependencies/tutorial013c_an_py39.py hl[16] *}
@@ -87,8 +87,8 @@ sub-dependencies.
 
 ## Dependency Scope Conflicts
 By definition, lifespan scoped dependencies are being setup in the application's
-startup process, before any request is ever being made to any endpoint. 
+startup process, before any request is ever being made to any endpoint.
-Therefore, it is not possible for a lifespan scoped dependency to use any 
+Therefore, it is not possible for a lifespan scoped dependency to use any
 parameters that require the scope of an endpoint.
 
 That includes but not limited to:

docs_src/dependencies/tutorial013a.py

@@ -18,6 +18,7 @@ class MyDatabaseConnection:
     async def get_records(self, table_name: str) -> List[dict]:
         pass
 
+
 app = FastAPI()
 
 
@@ -30,10 +31,14 @@ GlobalDatabaseConnection = Depends(get_database_connection, dependency_scope="li
 
 
 @app.get("/users/")
-async def read_users(database_connection: MyDatabaseConnection = GlobalDatabaseConnection):
+async def read_users(
+    database_connection: MyDatabaseConnection = GlobalDatabaseConnection,
+):
     return await database_connection.get_records("users")
 
 
 @app.get("/items/")
-async def read_items(database_connection: MyDatabaseConnection = GlobalDatabaseConnection):
+async def read_items(
+    database_connection: MyDatabaseConnection = GlobalDatabaseConnection,
+):
     return await database_connection.get_records("items")

docs_src/dependencies/tutorial013a_an_py39.py

@@ -8,6 +8,7 @@ class MyDatabaseConnection:
     """
     This is a mock just for example purposes.
     """
+
     async def __aenter__(self) -> Self:
         return self
 
@@ -26,7 +27,10 @@ async def get_database_connection():
         yield connection
 
 
-GlobalDatabaseConnection = Annotated[MyDatabaseConnection, Depends(get_database_connection, dependency_scope="lifespan")]
+GlobalDatabaseConnection = Annotated[
+    MyDatabaseConnection, Depends(get_database_connection, dependency_scope="lifespan")
+]
+
 
 @app.get("/users/")
 async def read_users(database_connection: GlobalDatabaseConnection):

docs_src/dependencies/tutorial013b.py

@@ -21,6 +21,7 @@ class MyDatabaseConnection:
     async def get_record(self, table_name: str, record_id: str) -> dict:
         pass
 
+
 app = FastAPI()
 
 
@@ -29,26 +30,36 @@ async def get_database_connection():
         yield connection
 
 
-
 GlobalDatabaseConnection = Depends(get_database_connection, dependency_scope="lifespan")
-DedicatedDatabaseConnection = Depends(get_database_connection, dependency_scope="lifespan", use_cache=False)
+DedicatedDatabaseConnection = Depends(
+    get_database_connection, dependency_scope="lifespan", use_cache=False
+)
+
 
 @app.get("/groups/")
-async def read_groups(database_connection: MyDatabaseConnection = DedicatedDatabaseConnection):
+async def read_groups(
+    database_connection: MyDatabaseConnection = DedicatedDatabaseConnection,
+):
     return await database_connection.get_records("groups")
 
+
 @app.get("/users/")
-async def read_users(database_connection: MyDatabaseConnection = DedicatedDatabaseConnection):
+async def read_users(
+    database_connection: MyDatabaseConnection = DedicatedDatabaseConnection,
+):
     return await database_connection.get_records("users")
 
 
 @app.get("/items/")
-async def read_items(database_connection: MyDatabaseConnection = GlobalDatabaseConnection):
+async def read_items(
+    database_connection: MyDatabaseConnection = GlobalDatabaseConnection,
+):
     return await database_connection.get_records("items")
 
+
 @app.get("/items/{item_id}")
 async def read_item(
     item_id: str = Path(),
-    database_connection: MyDatabaseConnection = GlobalDatabaseConnection
+    database_connection: MyDatabaseConnection = GlobalDatabaseConnection,
 ):
     return await database_connection.get_record("items", item_id)

docs_src/dependencies/tutorial013b_an_py39.py

@@ -21,6 +21,7 @@ class MyDatabaseConnection:
     async def get_record(self, table_name: str, record_id: str) -> dict:
         pass
 
+
 app = FastAPI()
 
 
@@ -29,13 +30,20 @@ async def get_database_connection():
         yield connection
 
 
-GlobalDatabaseConnection = Annotated[MyDatabaseConnection, Depends(get_database_connection, dependency_scope="lifespan")]
+GlobalDatabaseConnection = Annotated[
-DedicatedDatabaseConnection = Annotated[MyDatabaseConnection, Depends(get_database_connection, dependency_scope="lifespan", use_cache=False)]
+    MyDatabaseConnection, Depends(get_database_connection, dependency_scope="lifespan")
+]
+DedicatedDatabaseConnection = Annotated[
+    MyDatabaseConnection,
+    Depends(get_database_connection, dependency_scope="lifespan", use_cache=False),
+]
+
 
 @app.get("/groups/")
 async def read_groups(database_connection: DedicatedDatabaseConnection):
     return await database_connection.get_records("groups")
 
+
 @app.get("/users/")
 async def read_users(database_connection: DedicatedDatabaseConnection):
     return await database_connection.get_records("users")
@@ -45,9 +53,9 @@ async def read_users(database_connection: DedicatedDatabaseConnection):
 async def read_items(database_connection: GlobalDatabaseConnection):
     return await database_connection.get_records("items")
 
+
 @app.get("/items/{item_id}")
 async def read_item(
-        database_connection: GlobalDatabaseConnection,
+    database_connection: GlobalDatabaseConnection, item_id: Annotated[str, Path()]
-        item_id: Annotated[str, Path()]
 ):
     return await database_connection.get_record("items", item_id)

docs_src/dependencies/tutorial013c.py

@@ -9,6 +9,7 @@ class MyDatabaseConnection:
     """
     This is a mock just for example purposes.
     """
+
     connection_string: str
 
     async def __aenter__(self) -> Self:
@@ -20,6 +21,7 @@ class MyDatabaseConnection:
     async def get_record(self, table_name: str, record_id: str) -> dict:
         pass
 
+
 app = FastAPI()
 
 
@@ -28,20 +30,21 @@ async def get_configuration() -> dict:
         "database_url": "sqlite:///database.db",
     }
 
+
 GlobalConfiguration = Depends(get_configuration, dependency_scope="lifespan")
 
 
-async def get_database_connection(
+async def get_database_connection(configuration: dict = GlobalConfiguration):
-        configuration: dict = GlobalConfiguration
-):
     async with MyDatabaseConnection(configuration["database_url"]) as connection:
         yield connection
 
+
 GlobalDatabaseConnection = Depends(get_database_connection, dependency_scope="lifespan")
 
+
 @app.get("/users/{user_id}")
 async def read_user(
-        database_connection: MyDatabaseConnection = GlobalDatabaseConnection,
+    database_connection: MyDatabaseConnection = GlobalDatabaseConnection,
-        user_id: str = Path()
+    user_id: str = Path(),
 ):
     return await database_connection.get_record("users", user_id)

docs_src/dependencies/tutorial013c_an_py39.py

@@ -10,6 +10,7 @@ class MyDatabaseConnection:
     """
     This is a mock just for example purposes.
     """
+
     connection_string: str
 
     async def __aenter__(self) -> Self:
@@ -33,20 +34,25 @@ async def get_configuration() -> dict:
         "database_url": "sqlite:///database.db",
     }
 
-GlobalConfiguration = Annotated[dict, Depends(get_configuration, dependency_scope="lifespan")]
+
+GlobalConfiguration = Annotated[
+    dict, Depends(get_configuration, dependency_scope="lifespan")
+]
 
 
 async def get_database_connection(configuration: GlobalConfiguration):
-    async with MyDatabaseConnection(
+    async with MyDatabaseConnection(configuration["database_url"]) as connection:
-            configuration["database_url"]) as connection:
         yield connection
 
-GlobalDatabaseConnection = Annotated[get_database_connection, Depends(get_database_connection, dependency_scope="lifespan")]
+
+GlobalDatabaseConnection = Annotated[
+    get_database_connection,
+    Depends(get_database_connection, dependency_scope="lifespan"),
+]
 
 
 @app.get("/users/{user_id}")
 async def read_user(
-        database_connection: GlobalDatabaseConnection,
+    database_connection: GlobalDatabaseConnection, user_id: Annotated[str, Path()]
-        user_id: Annotated[str, Path()]
 ):
     return await database_connection.get_record("users", user_id)

docs_src/dependencies/tutorial013d.py

@@ -21,6 +21,7 @@ class MyDatabaseConnection:
     async def get_record(self, table_name: str, record_id: str) -> dict:
         pass
 
+
 app = FastAPI()
 
 
@@ -33,14 +34,12 @@ GlobalDatabaseConnection = Depends(get_database_connection, dependency_scope="li
 
 
 async def get_user_record(
-        database_connection: MyDatabaseConnection = GlobalDatabaseConnection,
+    database_connection: MyDatabaseConnection = GlobalDatabaseConnection,
-        user_id: str = Path()
+    user_id: str = Path(),
 ) -> dict:
     return await database_connection.get_record("users", user_id)
 
 
 @app.get("/users/{user_id}")
-async def read_user(
+async def read_user(user_record: dict = Depends(get_user_record)):
-        user_record: dict = Depends(get_user_record)
-):
     return user_record

docs_src/dependencies/tutorial013d_an_py39.py

@@ -21,6 +21,7 @@ class MyDatabaseConnection:
     async def get_record(self, table_name: str, record_id: str) -> dict:
         pass
 
+
 app = FastAPI()
 
 
@@ -29,17 +30,17 @@ async def get_database_connection():
         yield connection
 
 
-GlobalDatabaseConnection = Annotated[MyDatabaseConnection, Depends(get_database_connection, dependency_scope="lifespan")]
+GlobalDatabaseConnection = Annotated[
+    MyDatabaseConnection, Depends(get_database_connection, dependency_scope="lifespan")
+]
 
 
 async def get_user_record(
-        database_connection: GlobalDatabaseConnection,
+    database_connection: GlobalDatabaseConnection, user_id: Annotated[str, Path()]
-        user_id: Annotated[str, Path()]
 ) -> dict:
     return await database_connection.get_record("users", user_id)
 
+
 @app.get("/users/{user_id}")
-async def read_user(
+async def read_user(user_record: Annotated[dict, Depends(get_user_record)]):
-        user_record: Annotated[dict, Depends(get_user_record)]
-):
     return user_record

tests/test_tutorial/test_dependencies/test_tutorial013a.py

@@ -34,11 +34,7 @@ class MockDatabaseConnection:
 def database_connection_mock(monkeypatch) -> MockDatabaseConnection:
     mock = MockDatabaseConnection()
 
-    monkeypatch.setattr(
+    monkeypatch.setattr(MyDatabaseConnection, "__new__", lambda *args, **kwargs: mock)
-        MyDatabaseConnection,
-        "__new__",
-        lambda *args, **kwargs: mock
-    )
 
     return mock
 
@@ -50,13 +46,13 @@ def test_dependency_usage(database_connection_mock):
         assert database_connection_mock.enter_count == 1
         assert database_connection_mock.exit_count == 0
 
-        response = test_client.get('/users')
+        response = test_client.get("/users")
         assert response.status_code == 200
         assert response.json() == []
 
         assert database_connection_mock.get_records_count == 1
 
-        response = test_client.get('/items')
+        response = test_client.get("/items")
         assert response.status_code == 200
         assert response.json() == []
 

tests/test_tutorial/test_dependencies/test_tutorial013a_an_py39.py

@@ -34,11 +34,7 @@ class MockDatabaseConnection:
 def database_connection_mock(monkeypatch) -> MockDatabaseConnection:
     mock = MockDatabaseConnection()
 
-    monkeypatch.setattr(
+    monkeypatch.setattr(MyDatabaseConnection, "__new__", lambda *args, **kwargs: mock)
-        MyDatabaseConnection,
-        "__new__",
-        lambda *args, **kwargs: mock
-    )
 
     return mock
 
@@ -50,13 +46,13 @@ def test_dependency_usage(database_connection_mock):
         assert database_connection_mock.enter_count == 1
         assert database_connection_mock.exit_count == 0
 
-        response = test_client.get('/users')
+        response = test_client.get("/users")
         assert response.status_code == 200
         assert response.json() == []
 
         assert database_connection_mock.get_records_count == 1
 
-        response = test_client.get('/items')
+        response = test_client.get("/items")
         assert response.status_code == 200
         assert response.json() == []
 

tests/test_tutorial/test_dependencies/test_tutorial013b.py

@@ -40,22 +40,17 @@ class MockDatabaseConnection:
         }
 
 
-
 @pytest.fixture
 def database_connection_mocks(monkeypatch) -> List[MockDatabaseConnection]:
     connections = []
+
     def _get_new_connection_mock(*args, **kwargs):
         mock = MockDatabaseConnection()
         connections.append(mock)
 
         return mock
 
-
+    monkeypatch.setattr(MyDatabaseConnection, "__new__", _get_new_connection_mock)
-    monkeypatch.setattr(
-        MyDatabaseConnection,
-        "__new__",
-        _get_new_connection_mock
-    )
     return connections
 
 
@@ -70,7 +65,7 @@ def test_dependency_usage(database_connection_mocks):
             assert connection.get_records_count == 0
             assert connection.get_record_count == 0
 
-        response = test_client.get('/users')
+        response = test_client.get("/users")
         assert response.status_code == 200
         assert response.json() == []
 
@@ -80,9 +75,11 @@ def test_dependency_usage(database_connection_mocks):
                 users_connection = connection
                 break
 
-        assert users_connection is not None, "No connection was found for users endpoint"
+        assert (
+            users_connection is not None
+        ), "No connection was found for users endpoint"
 
-        response = test_client.get('/groups')
+        response = test_client.get("/groups")
         assert response.status_code == 200
         assert response.json() == []
 
@@ -92,7 +89,9 @@ def test_dependency_usage(database_connection_mocks):
                 groups_connection = connection
                 break
 
-        assert groups_connection is not None, "No connection was found for groups endpoint"
+        assert (
+            groups_connection is not None
+        ), "No connection was found for groups endpoint"
         assert groups_connection.get_records_count == 1
 
         items_connection = None
@@ -101,16 +100,18 @@ def test_dependency_usage(database_connection_mocks):
                 items_connection = connection
                 break
 
-        assert items_connection is not None, "No connection was found for items endpoint"
+        assert (
+            items_connection is not None
+        ), "No connection was found for items endpoint"
 
-        response = test_client.get('/items')
+        response = test_client.get("/items")
         assert response.status_code == 200
         assert response.json() == []
 
         assert items_connection.get_records_count == 1
         assert items_connection.get_record_count == 0
 
-        response = test_client.get('/items/asd')
+        response = test_client.get("/items/asd")
         assert response.status_code == 200
         assert response.json() == {
             "table_name": "items",

tests/test_tutorial/test_dependencies/test_tutorial013b_an_py39.py

@@ -40,22 +40,17 @@ class MockDatabaseConnection:
         }
 
 
-
 @pytest.fixture
 def database_connection_mocks(monkeypatch) -> List[MockDatabaseConnection]:
     connections = []
+
     def _get_new_connection_mock(*args, **kwargs):
         mock = MockDatabaseConnection()
         connections.append(mock)
 
         return mock
 
-
+    monkeypatch.setattr(MyDatabaseConnection, "__new__", _get_new_connection_mock)
-    monkeypatch.setattr(
-        MyDatabaseConnection,
-        "__new__",
-        _get_new_connection_mock
-    )
     return connections
 
 
@@ -70,7 +65,7 @@ def test_dependency_usage(database_connection_mocks):
             assert connection.get_records_count == 0
             assert connection.get_record_count == 0
 
-        response = test_client.get('/users')
+        response = test_client.get("/users")
         assert response.status_code == 200
         assert response.json() == []
 
@@ -80,9 +75,11 @@ def test_dependency_usage(database_connection_mocks):
                 users_connection = connection
                 break
 
-        assert users_connection is not None, "No connection was found for users endpoint"
+        assert (
+            users_connection is not None
+        ), "No connection was found for users endpoint"
 
-        response = test_client.get('/groups')
+        response = test_client.get("/groups")
         assert response.status_code == 200
         assert response.json() == []
 
@@ -92,7 +89,9 @@ def test_dependency_usage(database_connection_mocks):
                 groups_connection = connection
                 break
 
-        assert groups_connection is not None, "No connection was found for groups endpoint"
+        assert (
+            groups_connection is not None
+        ), "No connection was found for groups endpoint"
         assert groups_connection.get_records_count == 1
 
         items_connection = None
@@ -101,16 +100,18 @@ def test_dependency_usage(database_connection_mocks):
                 items_connection = connection
                 break
 
-        assert items_connection is not None, "No connection was found for items endpoint"
+        assert (
+            items_connection is not None
+        ), "No connection was found for items endpoint"
 
-        response = test_client.get('/items')
+        response = test_client.get("/items")
         assert response.status_code == 200
         assert response.json() == []
 
         assert items_connection.get_records_count == 1
         assert items_connection.get_record_count == 0
 
-        response = test_client.get('/items/asd')
+        response = test_client.get("/items/asd")
         assert response.status_code == 200
         assert response.json() == {
             "table_name": "items",

tests/test_tutorial/test_dependencies/test_tutorial013c.py

@@ -34,21 +34,17 @@ class MockDatabaseConnection:
         }
 
 
-
 @pytest.fixture
 def database_connection_mocks(monkeypatch) -> List[MockDatabaseConnection]:
     connections = []
+
     def _get_new_connection_mock(cls, url):
         mock = MockDatabaseConnection(url)
         connections.append(mock)
 
         return mock
 
-    monkeypatch.setattr(
+    monkeypatch.setattr(MyDatabaseConnection, "__new__", _get_new_connection_mock)
-        MyDatabaseConnection,
-        "__new__",
-        _get_new_connection_mock
-    )
     return connections
 
 
@@ -64,7 +60,7 @@ def test_dependency_usage(database_connection_mocks):
         assert database_connection_mock.exit_count == 0
         assert database_connection_mock.get_record_count == 0
 
-        response = test_client.get('/users/user')
+        response = test_client.get("/users/user")
         assert response.status_code == 200
         assert response.json() == {
             "table_name": "users",

tests/test_tutorial/test_dependencies/test_tutorial013c_an_py39.py

@@ -34,21 +34,17 @@ class MockDatabaseConnection:
         }
 
 
-
 @pytest.fixture
 def database_connection_mocks(monkeypatch) -> List[MockDatabaseConnection]:
     connections = []
+
     def _get_new_connection_mock(cls, url):
         mock = MockDatabaseConnection(url)
         connections.append(mock)
 
         return mock
 
-    monkeypatch.setattr(
+    monkeypatch.setattr(MyDatabaseConnection, "__new__", _get_new_connection_mock)
-        MyDatabaseConnection,
-        "__new__",
-        _get_new_connection_mock
-    )
     return connections
 
 
@@ -64,7 +60,7 @@ def test_dependency_usage(database_connection_mocks):
         assert database_connection_mock.exit_count == 0
         assert database_connection_mock.get_record_count == 0
 
-        response = test_client.get('/users/user')
+        response = test_client.get("/users/user")
         assert response.status_code == 200
         assert response.json() == {
             "table_name": "users",

tests/test_tutorial/test_dependencies/test_tutorial013d.py

@@ -33,21 +33,17 @@ class MockDatabaseConnection:
         }
 
 
-
 @pytest.fixture
 def database_connection_mocks(monkeypatch) -> List[MockDatabaseConnection]:
     connections = []
+
     def _get_new_connection_mock(*args, **kwargs):
         mock = MockDatabaseConnection()
         connections.append(mock)
 
         return mock
 
-    monkeypatch.setattr(
+    monkeypatch.setattr(MyDatabaseConnection, "__new__", _get_new_connection_mock)
-        MyDatabaseConnection,
-        "__new__",
-        _get_new_connection_mock
-    )
     return connections
 
 
@@ -62,7 +58,7 @@ def test_dependency_usage(database_connection_mocks):
         assert database_connection_mock.exit_count == 0
         assert database_connection_mock.get_record_count == 0
 
-        response = test_client.get('/users/user')
+        response = test_client.get("/users/user")
         assert response.status_code == 200
         assert response.json() == {
             "table_name": "users",

tests/test_tutorial/test_dependencies/test_tutorial013d_an_py39.py

@@ -33,21 +33,17 @@ class MockDatabaseConnection:
         }
 
 
-
 @pytest.fixture
 def database_connection_mocks(monkeypatch) -> List[MockDatabaseConnection]:
     connections = []
+
     def _get_new_connection_mock(*args, **kwargs):
         mock = MockDatabaseConnection()
         connections.append(mock)
 
         return mock
 
-    monkeypatch.setattr(
+    monkeypatch.setattr(MyDatabaseConnection, "__new__", _get_new_connection_mock)
-        MyDatabaseConnection,
-        "__new__",
-        _get_new_connection_mock
-    )
     return connections
 
 
@@ -62,7 +58,7 @@ def test_dependency_usage(database_connection_mocks):
         assert database_connection_mock.exit_count == 0
         assert database_connection_mock.get_record_count == 0
 
-        response = test_client.get('/users/user')
+        response = test_client.get("/users/user")
         assert response.status_code == 200
         assert response.json() == {
             "table_name": "users",