As someone that’s maintained an E2E test harness in PHP including internal dispatching, having multiple DBs active in a test suite, having multiple active sites

As someone that’s maintained an E2E test harness in PHP including internal dispatching, having multiple DBs active in a test suite, having multiple active sites running and communicating with each other, handling integration tests to Elastic, Sphinx, and Memcached, I really don’t think it’s such a big deal to spend a day or 2 plumbing out your test harness for a “big” app. A big app takes years of work, and along the way you be building utility functions to easily stand up test data. It’s not that hard and you don’t need it all at once.