Just found the #TestContainers project:

https://testcontainers.com

> Unit tests with real dependencies. Testcontainers is an open source framework for providing throwaway, lightweight instances of databases, message brokers, web browsers, or just about anything that can run in a Docker container.

https://news.ycombinator.com/item?id=39531536

Heads up to the #ActivityPub test suite projects. This may be interesting.

@activitypubtestsuite

I updated the test feedback wiki on #SocialHub: https://socialhub.activitypub.rocks/t/wiki-collected-feedback-on-interop-testing-methods-living-docs-and-specs/3538