class Model3(BaseModel):
    c: Model
    d: Model2


@app.get("/", response_model=Model3)
def f():
    return {"c": {}, "d": {"a": {}}}


client = TestClient(app)


def test_get_api_route():
    response = client.get("/")
    assert response.status_code == 200, response.text
    assert response.json() == {"c": {}, "d": {"a": {}}}


def test_openapi_schema():

@app.trace("/items/{item_id}")
def trace_item(item_id: str):
    return JSONResponse(None, media_type="message/http")


client = TestClient(app)


def test_get_api_route():
    response = client.get("/items/foo")
    assert response.status_code == 200, response.text
    assert response.json() == {"item_id": "foo"}


def test_get_api_route_not_decorated():