The issue I'm facing at rspotify is that to run tests that require OAuth automatically (with GitHub Continuous Integration for instance), I need a refresh token for an account with Spotify Premium to access the different endpoints the Spotify Web API exposes. The refresh token doesn't expire as often as an access token, so it's good enough for the tests.
The main tekore developer, Felix Hildén, currently uses his own personal account for this, which does work, but is far from ideal because the tests have to be written so that they don't modify his profile, and has to be secret so that noone else has access to it.
But for rspotify none of the devs (including myself) want to share their refresh token to run these tests for different reasons, specially because it gives access to the full account and we consider that too risky as open source collaborators.
We were wondering if it'd be possible to have Spotify offer "development accounts" for such testing purposes. The accounts themselves wouldn't even need to work to listen to music, only for the Spotify Web API endpoints, so the cost for this proposal would be none.
This is beneficial for Spotify because this way the Web API libraries could write considerably improved tests, and with it, Spotify would have a more stable and robust ecosystem. Not only would that increase the quality of the apps, but also Spotify's usage to some extent.