How to configure your Rails engine with Rspec, Capybara, and FactoryGirl

1. Run the follow lines to generate a mountable engine

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rails plugin new ENGINE_NAME --dummy-path=spec/dummy --skip-test-unit --mountable

Recently, I build some Rails engines. And I found it’s a good way to organize and share reusable code across a number of applications.

Rails Engine is not like Ruby gem. It’s more like a rails app, it has its own controllers, views and migrations. And basically it has two type of engine, full or mountable.