the-littlest-jupyterhub/integration-tests/test_hub.py

import requests
from hubtraf.user import User
from hubtraf.auth.dummy import login_dummy
import secrets
import pytest
from functools import partial
import pwd


def test_hub_up():
    r = requests.get('http://127.0.0.1')
    r.raise_for_status()


@pytest.mark.asyncio
async def test_user_code_execute():
    """
    User logs in, starts a server & executes code
    """
    # This *must* be localhost, not an IP
    # aiohttp throws away cookies if we are connecting to an IP!
    hub_url = 'http://localhost'
    username = secrets.token_hex(8)

    async with User(username, hub_url, partial(login_dummy, password='')) as u:
            await u.login()
            await u.ensure_server()
            await u.start_kernel()
            await u.assert_code_output("5 * 4", "20", 5, 5)

            # Assert that the user exists
            assert pwd.getpwnam(f'jupyter-{username}') is not None