TRAILBLAZER-STORY will follow as it turned out to be inevitable for setting up application state for tests. Instead of fumbling around with factories and traits in your tests, you “tell a story” about what to create in which order, easily customizable, and all written using activities.

Using operations as test factories is a fundamental concept of Trailblazer to remove buggy redundancy in tests and manual factories.

It is absolutely advisable to use factory in combination with let. let(:song) { factory( Song::Create, { title: "Timebomb", band: "Rancid" } ) }

You should always use operations as factories in tests.

There are several helpers to deal with operation tests and operations used as factories.