bypassing sorcery authentication for rspec feature and cucumber tests for my external authentication setup.

login_helper_cucumber.rb

# feature/support/login_helper.rb

require 'spec/support/login_helper'

Before do
  extend LoginHelper
  @user = FactoryGirl.create(:user)
  login_as @user
end

# @user can then be used in step definitions for a particular scenario.

login_helper_rspec.rb

#spec/support/login_helper.rb

# Cannot remember where I found this code. When I do, I'll post the credit where it is due.

module LoginHelper
  def stub_login!(user)
    # Stub '#login_at' in '/oauth/:provider'
    override_once(OauthsController, :login_at) do |provider|
      redirect_to action: :callback, provider: provider
    end

    # Stub `#login_from` in '/oauth/callback'
    override_once(OauthsController, :login_from) do |provider|
      auto_login(user)
      after_login!(user)

      user
    end
  end

  # Test user will always login via Google
  def login_as(user)
    stub_login!(user)
    visit login_path
    click_link(I18n.t('user_sessions.new.google'))
  end
end

def override_once(receiver, method_name, &block)
  original_method = receiver.instance_method(method_name)
  receiver.send(:define_method, method_name) do |*args|
    value = instance_exec(*args, &block)
    receiver.send(:define_method, method_name) do |*args|
      original_method.bind(self).call(*args)
    end
    value
  end
end

spec_helper.rb

# spec/spec_helper.rb

RSpec.configure do |config|
  config.include Sorcery::TestHelpers::Rails
  config.include LoginHelper, type: :feature