[pmontra]

That looks like an integration test. A possible way to handle that scenario is to drop all the databases after it ends and create them again, or truncate all the tables or whatever it makes sense for that possible set of different data stores.

That could run on developer machines but maybe it runs only on a CI server and developers run only unit tests.

[dnautics]

so in elixir you can do this async alongside your unit tests.