Some more fixtures

[minrk]

Proposed change

Having used this for a bit now (it's great!) I have some suggestions for more fixtures to add. The pytest-jupyter extension is a great model, which has fixtures for starting and talking to a Jupyter server.

• A jupyterhub_config fixture that returns the jupyterhub configuration #67
• A hub_app fixture that depends on jupyterhub_config #68
• A hub_api_request fixture that returns a function that makes authenticated API requests #69
• User, username fixtures #70

Who would use this feature?

Spawners, authenticators

[Sheila-nk]

Thanks @minrk ❤️
I'd like to convert all the suggested fixtures into individual issues for easier tracking if that's okay.

[minrk]

Closing in favor of individual Issues