Rails 4 Test Prescriptions

Infrastructure

First off, we’ll need a Rails application. We’ll be using Rails 4.1.7 and Ruby 2.1.4; use of Ruby 2.0–specific features will be minimal.

We’ll start by generating the Rails application from the command line:

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This will create the initial directory structure and code for a Rails application. It will also run bundle install to load initial gems. I assume that you are already familiar with Rails core concepts, I won’t spend a lot of time re-explaining them. If you are not familiar with Rails, Agile Web Development with Rails [RTH13] is still the gold standard for getting started.

We need to create our databases. For ease of setup and distribution we’ll stick to the Rails default, which is SQLite. ...