anonymous_routes_spec.rb

require File.expand_path('../../config/environment', __FILE__)
require 'rspec/rails'

class ApplicationController < ActionController::Base
  def redirect_to_index
    redirect_to(:action => :index)
  end
end

describe ApplicationController, :type => :controller do
  controller do
    before_filter :redirect_to_index, only: :show

    def index; end
    def show; end
  end

  describe "GET show(failed pattern)" do
    it "redirect to index page" do
      get :show, :id => 1
      # failed! because no route match.
      response.should redirect_to(:action => :index)
    end
  end

  describe "GET show(success pattern)" do
    before do
      controller.stub(:_routes).and_return(@routes)
    end

    it "redirect to index page" do
      get :show, :id => 1
      response.should redirect_to(:action => :index)
    end
  end
end

gistfile1.sh

$ ruby -v
ruby 2.0.0p594 (2014-10-27 revision 48167) [x86_64-linux]

$ bundle exec rspec -v
3.2.0

$ bundle exec rspec spec/anonymous_routes_spec.rb

Randomized with seed 57921
.F

Failures:

  1) ApplicationController GET show(failed pattern) redirect to index page
     Failure/Error: redirect_to(:action => :index)
     ActionController::UrlGenerationError:
       No route matches {:action=>"index", :controller=>"anonymous", :id=>"1"}
     # ./spec/anonymous_routes_spec.rb:6:in `redirect_to_index'
     # ./lib/admanager/logging.rb:62:in `process_action'
     # ./spec/anonymous_routes_spec.rb:20:in `block (3 levels) in <top (required)>'

...

2 deprecation warnings total

Finished in 0.10499 seconds (files took 7.11 seconds to load)
2 examples, 1 failure

Failed examples:

rspec ./spec/anonymous_routes_spec.rb:19 # ApplicationController GET show(failed pattern) redirect to index page

Randomized with seed 57921