🔧 Building a Rails Engine #13 -- How to test a mountable Rails engine without a dummy app

Testing a Rails Engine with RSpec



How to test a mountable Rails engine without a dummy app -- just an in-memory SQLite database and 60 lines of spec_helper.





Context


This is part 13 of the series where we build DataPorter, a mountable Rails engine for data import workflows. In part 12, we extended the Source layer to support JSON...