“undefined method `env' for nil:NilClass” in 'setup_controller_for_warden' error when testing Devise using Rspec

Question

I\'m trying to create a spec for a sign out flow by using factorygirl to create a user and then use Devise\'s sign_in method to authenticate the user, then use

Answer 1

I meet the same error on rails 5. Here's my solution

spec/rails_helper.rb

RSpec.configure do |config|
  config.include Devise::TestHelpers, type: :controller
  config.include Devise::TestHelpers, type: :view
  config.include Warden::Test::Helpers
end

spec/controllers/your_controller_spec.rb

RSpec.describe YourController, type: :controller do
  before(:all) do
  user = FactoryGirl.create(:user)
  login_as user, scope: :user
end

it "#index" do
  get "index"
  expect(response).to render_template(:index)
  expect(response).to have_http_status(200)
end

$ rspec --tag focus

Run options: include {:focus=>true}
DashboardController
#index
Finished in 3.9 seconds (files took 3.5 seconds to load)
1 example, 0 failures