"info": {"title": "FastAPI", "version": "0.1.0"},
        "paths": {
            "/items/{item_id}": {
                "put": {
                    "summary": "Update Item",
                    "operationId": "update_item_items__item_id__put",
                    "parameters": [
                        {
                            "name": "item_id",
                            "in": "path",
                            "required": True,

client = TestClient(app)


def test_get_custom_response():
    response = client.get("/items/")
    assert response.status_code == 200, response.text
    assert response.json() == [{"item_id": "Foo"}]


def test_openapi_schema():
    response = client.get("/openapi.json")
    assert response.status_code == 200, response.text
    assert response.json() == {
        "openapi": "3.1.0",

                                "post": {
                                    "summary": "Invoice Notification",
                                    "operationId": "invoice_notification__callback_url__invoices___request_body_id__post",
                                    "requestBody": {
                                        "required": True,
                                        "content": {