Rails reporting 404, rspec is reporting 200

rspec-rails-response-codes.rb

# spec/controllers/pages_controller_spec.rb

require 'spec_helper'

describe PagesController do
  describe "#show" do
    context "with a published slug" do
    ...
    end
    
    context "with an unpublished slug" do
      it "returns 404" do
        get :show, id: :unknown
        response.code.should eq 404 # This is the trouble code
      end
    end
  end
end

# app/controllers/pages_controller.rb

class PagesController < ApplicationController
  rescue_from ActiveRecord::RecordNotFound, with: :page_not_found

  def show
    @page = Page.published.find_by_slug!(params[:id])
  end

  protected

  def page_not_found
    raise ActionController::RoutingError.new('Page Not Found')
  end
end

=begin
RSpec output

PagesController
  #show
    with a published slug
      returns http success
    with an unpublished slug
      returns 404 (FAILED - 1)

Failures:

  1) PagesController#show with an unpublished slug returns 404
     Failure/Error: get :show, id: :unknown
     ActionController::RoutingError:
       Page Not Found
     # ./app/controllers/pages_controller.rb:11:in `page_not_found'
     # ./spec/controllers/pages_controller_spec.rb:15:in `block (4 levels) in <top (required)>'
=end

=begin
# Rails logger output
Page Load (0.1ms)  SELECT "pages".* FROM "pages" WHERE "pages"."published" = 't' AND "pages"."slug" = 'homes' LIMIT 1
Completed 404 Not Found in 4ms

ActiveRecord::RecordNotFound (Couldn't find Page with slug = homes):
  app/controllers/pages_controller.rb:5:in `show'


  Rendered /Users/brandon/.rvm/gems/ruby-1.9.3-head@closetcrunch/gems/actionpack-3.2.11/lib/action_dispatch/middleware/templates/rescues/_trace.erb (1.9ms)
  Rendered /Users/brandon/.rvm/gems/ruby-1.9.3-head@closetcrunch/gems/actionpack-3.2.11/lib/action_dispatch/middleware/templates/rescues/_request_and_response.erb (1.4ms)
  Rendered /Users/brandon/.rvm/gems/ruby-1.9.3-head@closetcrunch/gems/actionpack-3.2.11/lib/action_dispatch/middleware/templates/rescues/diagnostics.erb within rescues/layout (13.2ms)
=end

Hi, did you find a solution to this issue? I have the opposite problem, i.e. rails reports 200 but rspec fails..