Understanding Factory Bot syntax by coding your own Factory Bot - Code with Jason

When you look at a Factory Bot factory definition, the syntax might look somewhat mysterious. Here’s an example of such a factory.FactoryBot.define do factory :user do first_name { "John" } last_name { "Smith" } endendThe goal of this tutorial is to demystify this syntax. The way we’ll do this is to write our own implementation of Factory Bot from scratch. Or, more precisely, we’ll write an implementation of something that behaves indistinguishably from Factory Bot for a few narrow use cases.