@app.post("/items/") async def create_item(item: Item): return {"item_name": item.name, "item_price": item.price}

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def test_read_root(): response = client.get("/") assert response.status_code == 200 assert response.json() == {"message": "Hello World"}

from fastapi.responses import JSONResponse class ResponseModel(BaseModel): status: str data: dict

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Run the server:

from fastapi.testclient import TestClient from main import app client = TestClient(app)

python -m venv fastapi-env source fastapi-env/bin/activate # On Windows: fastapi-env\Scripts\activate pip install fastapi uvicorn Create a file named main.py :