RSpec

Rspec is a testing framework which can be used as an alternative to the Rails-default minitest. Here are some resources to help you write rspec tests:

• RSpec matchers

Installation

To install RSpec:

gem add rspec
bundle install
rails generate rspec:install

Install Capybara, add the following to your Gemfile:

# Gemfile
group :test do
  gem 'capybara', '>= 3.26'
end

RSpec will create a folder spec and populate some files there. To support system tests with Capybara, there are two changes you need to make. Create a new file, spec/support/system.rb, and modify the existing file spec/rails_helper.rb

# spec/rails_helper.rb
Dir[Rails.root.join('spec', 'support', '**', '*.rb')].sort.each { |f| require f }

# spec/support/system.rb
RSpec.configure do |config|
  config.before(:each, type: :system) do
    driven_by :rack_test
  end
end

Create a Spec

Now you can create a system spec! Let’s write a spec which will always pass.

# create_event_spec.rb
require "rails_helper"

RSpec.describe "example test", type: :system do
  it "sets true equal to true" do
    expect true.to be true
  end
end