Installing RSpec

RSpec Gemfile

Before we start testing, we’ll need to load RSpec, our testing library.

To add RSpec to a Rails project, we’ll add the rspec-rails gem to the Gemfile:

The rspec-rails gem dependencies

The Rspec gem is mostly a list of other dependencies where the real work gets done, including:

• The RSpec-core dependency
• The rspec-expectations dependency
• The rspec-mocks dependency

Sometimes rspec and rspec-rails are updated separately. We might choose to specify both versions in the Gemfile explicitly. Here, we’re putting rspec ...