Quickly get devise running in your rspec tests

In any Rails app I am building I always find myself having to add user authentication into it. Luckily this is done really simple by the wonderful Devise gem.

It becomes a bit of a pain to integrate into the test suite though. I usually use RSpec in my tests. Though a conversation with Barry Gordon has got me thinking that maybe I should move to minitest (more on this at a later date).

After adding in devise a few times I've come up with a quick way of getting your request specs up and running fairly quickly:

spec/rails_helper.rb

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

RSpec.configure do |config|
# ...
  config.include RequestSpecHelper, type: :request
end

config/routes

  root to: 'home#index'
  authenticated do
    root to: 'authenticated#index', as: :authenticated_root
  end

require 'rails_helper'

RSpec.describe 'Sessions' do

  it 'signs user in and out' do
    user = User.create!(email: 'foo@barr.baz', password: 'secret')
    user.save

    sign_in user
    get authenticated_root_path
    expect(controller.current_user).to eq(user)

    sign_out user
    get authenticated_root_path
    expect(controller.current_user).to be_nil
  end

end

  module RequestSpecHelper

    include Warden::Test::Helpers

    def self.included(base)
      base.before(:each) { Warden.test_mode! }
      base.after(:each) { Warden.test_reset! }
    end

    def sign_in(resource)
      login_as(resource, scope: warden_scope(resource))
    end

    def sign_out(resource)
      logout(warden_scope(resource))
    end

    private

    def warden_scope(resource)
      resource.class.name.underscore.to_sym
    end

  end

	require 'rails_helper' 
		
	RSpec.describe 'MyMoods', type: :request do 
		scenario 'GET /my_moods?start_date=2018-08-09' do 
			user = User.create!(email: 'u@e.org', password: 'foo') 
			sign_in user 
			visit '/'
			expect(page).to have_content('My Moods')
		end
	end