在类中使用JWT令牌编写pytest

我有课 TestSecured 在其中,我有一些方法可以获取受保护的端点,所以你需要一个jwt来发出请求。我正在尝试优化我的测试类,这样我就不需要登录3次,只需要登录1次,并在我的3个测试方法中使用相同的令牌。

@pytest.mark.usefixtures("client", "auth", "setup_user_and_token")
class TestSecured:
        

    def test_get_operations(self, client, setup_user_and_token):
        # headers = {'Authorization' : f'Beare {setup_user_and_token}'}
        response = client.get(f'{SECURED_ROUTE}get-operations', headers=setup_user_and_token)
        assert response.status_code == 200

    def test_post_operation(self, client, auth):
        return "ok"


    def test_post_ope2(self,client,auth):
        print("ok")

如果我用以下命令在每个方法中设置标头,它就可以工作了 setup_user_and_token() 我创造的装置。

@pytest.fixture(scope="class")
def setup_user_and_token(auth):
    response = auth.login()
    token = response.get_json()['access_token']
    return {'Authorization' : f'Bearer {token}'}

但我想用 setup_class() 只做一次。我怎样才能做到这一点?

编辑: 下面是我的 conftest.py 我定义了一些夹具的文件:

@pytest.fixture
def app():
    app = create_app({
        'TESTING' : True,
    })
    yield app
   
    with app.app_context():
        db.drop_all()


@pytest.fixture
def client(app):
    return app.test_client()


class AuthActions(object):
    def __init__(self, client):
        self._client = client

    def login(self, username='test_user', password='test_pass'):
        return self._client.post(
            '/auth/login',
            json={'username': username, 'password': password}
        )

    def logout(self):
        return self._client.get('/auth/logout')

def auth(client):
    return AuthActions(client)

@pytest.fixture(scope="class")
def setup_user_and_token(auth):
    response = auth.login()
    token = response.get_json()['access_token']
    return {'Authorization' : f'Bearer {token}'}