Pundit: uninitialized constant UserPolicy

[wonderphil]

Looking for some help, Im a noob to Rspec and pundit, I was following an example to setup pundit and have the testing of it, but all the test are failing with

NameError:
  uninitialized constant UserPolicy
# ./spec/policies/user_policy_spec.rb:1:in `<top (required)>'
No examples found.

Need some help to figure out why as I have no idea :(
tried stackoverflow - https://stackoverflow.com/questions/51018559/pundit-rspec-uninitialized-constant-userpolicy-why

Using:

• Rails 5.1.6
• RSpec 3.7
• rspec-core 3.7.1
• rspec-expectations 3.7.0
• rspec-mocks 3.7.0
• rspec-rails 3.7.2
• rspec-support 3.7.1
• Pundit 1.1.0
• Devise 4.4.3

config/initializers/pundit.rb

module PunditHelper
  extend ActiveSupport::Concern

  included do
    include Pundit
    rescue_from Pundit::NotAuthorizedError, with: :user_not_authorized
  end

  private

  def user_not_authorized
    flash[:alert] = "Access denied."
    redirect_to (request.referrer || root_path)
  end

end

ApplicationController.send :include, PunditHelper

app/policies/user_policy.rb

class UserPolicy
  include ApplicationHelper

  attr_reader :current_user, :model

  def initialize(current_user, model)
    @current_user = current_user
    @user = model
  end

  def index?
    is_admin?(@current_user)
  end

  def show?
    is_admin?(@current_user) or @current_user == @user
  end

  def update?
    is_admin?(@current_user) or @current_user == @user 
  end

  def destroy?
    is_admin?(@current_user) or @current_user == @user
  end

end

spec/support/pundit.rb

require 'pundit/rspec'
spec/rails_helper.rb

require 'spec_helper'
ENV['RAILS_ENV'] ||= 'test'
require File.expand_path('../../config/environment', __FILE__)
abort("The Rails environment is running in production mode!") if 
Rails.env.production?
require 'rspec/rails'
Dir[Rails.root.join('spec/support/**/*.rb')].each { |f| require f }
...

spec/policies/user_policy_spec.rb

describe UserPolicy do
  subject { UserPolicy }

  let (:current_user) { FactoryBot.build_stubbed :user }
  let (:other_user) { FactoryBot.build_stubbed :user }
  let (:admin) { FactoryBot.build_stubbed :user, :admin }

  permissions :index? do
    it "denies access if not an admin" do
      expect(user_policy).not_to permit(current_user)
    end
    it "allows access for an admin" do
      expect(user_policy).to permit(admin)
    end
  end

end

app/controllers/users_controller.rb

class UsersController < ApplicationController
  include Pundit
  before_action :authenticate_user!
  after_action :verify_authorized

  def index
    @users = User.all
    authorize User
  end
  ....

end

[Linuus]

Does it only fail in the test? Does it find the policy when you authorize in the controller?

[wonderphil]

yes only in the test. At that point, I thought it might have been guard or rails server so I have restarted both many times and still nothing

[nicalpi]

I was just having the same issue on a relatively new fresh project.

Rails 5.2

I've had to add require: true to the gem line in the Gemfile to solve it.

[Linuus]

Can one of you create a minimal example where this happens it would help a lot.

[nicalpi]

So, I've now removed the required: false in the gem file, and it continues to work.

Also tried to replicate on a fresh Rails 5.2 test codebase, and, again no issue there.

On my side, I have no idea how to reproduce again :(

[Linuus]

Ok, so let’s close this and if anyone can reproduce the issue on a minimal app we can reopen it.

[thornomad]

Just wanted to chime in and say that I had this same problem: everything was working in the controller, the policies were visible from the rails console, but from rspec I kept getting the _uninitialized constant_ error. Could not figure it out.

Found this thread. Added require: true and the problem disappeared. I know this doesn't help you fix it! But wanted @nicalpi know they were not alone.

[Linuus]

@thornomad can you create a small example app that has this issue please?

[thornomad]

Sorry - unable to reproduce from a minimal setup (like @nicalpi). Not helpful, I know! Thanks for your work on this.

[nathandrewts]

A little late – but just ran into this issue with a new project. I just had to stop spring manually and then everything worked: spring stop.

[Linuus]

Todays tip:
export DISABLE_SPRING=true