test_main.py

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


def test_user_main():
    test1 = {
        "id": 1,
        "name": "natsumi",
    }
    response = client.post("/user/", json=test1)
    assert response.status_code == 200


def test_user_422():
    test1 = {
        "id": "string",  # string, not int
        "name": "natsumi",
    }
    response = client.post("/user/", json=test1)
    assert response.status_code == 422