Why can't I raise Mongoid :: Errors :: DocumentNotFound in RSpec functional testing?

Question

I am using rspec-rails (2.8.1) for functional testing of a rails 3.1 application using mangoid (3.4.7) to save. I am trying to do a rescue_from check for Mongoid :: Errors :: DocumentNotFound errors in my ApplicationController in the same way as rspec-rails documentation for anonymous controllers that this can be done, But when I run the following test ...

require "spec_helper"

class ApplicationController < ActionController::Base

  rescue_from Mongoid::Errors::DocumentNotFound, :with => :access_denied

private

  def access_denied
    redirect_to "/401.html"
  end
end

describe ApplicationController do
  controller do
    def index
      raise Mongoid::Errors::DocumentNotFound
    end
  end

  describe "handling AccessDenied exceptions" do
    it "redirects to the /401.html page" do
      get :index
      response.should redirect_to("/401.html")
    end
  end
end

I get the following unexpected error

  1) ApplicationController handling AccessDenied exceptions redirects to the /401.html page
     Failure/Error: raise Mongoid::Errors::DocumentNotFound
     ArgumentError:
       wrong number of arguments (0 for 2)
     # ./spec/controllers/application_controller_spec.rb:18:in `exception'
     # ./spec/controllers/application_controller_spec.rb:18:in `raise'
     # ./spec/controllers/application_controller_spec.rb:18:in `index'
     # ./spec/controllers/application_controller_spec.rb:24:in `block (3 levels) in <top (required)>'

Why? How can I raise this mongoid error?

Answer 1

Mongoid , . :

require "spec_helper"

class SomeBogusClass; end

class ApplicationController < ActionController::Base

  rescue_from Mongoid::Errors::DocumentNotFound, :with => :access_denied

private

  def access_denied
    redirect_to "/401.html"
  end
end

describe ApplicationController do
  controller do
    def index
      raise Mongoid::Errors::DocumentNotFound.new SomeBogusClass, {}
    end
  end

  describe "handling AccessDenied exceptions" do
    it "redirects to the /401.html page" do
      get :index
      response.should redirect_to("/401.html")
    end
  end
end