from fastapi.testclient import TestClient
from main import app

client = TestClient(app)

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

def test_read_item():
    response = client.get("/items/42")
    assert response.status_code == 200
    assert response.json() == {
        "item_id": 42,
        "message": "Item details"
    }