decent_exposure and Rails-less testing

reviews_controller_spec.rb

require 'units/spec_helper'
require 'reviews_controller'

class Review; end

describe ReviewsController do

  let(:controller) { ReviewsController.new }

  it { should expose :reviews }
  it { should expose :review }

  it "loads all reviews" do
    reviews = stub
    Review.stub_chain(:all, :entries).and_return(reviews)

    controller.reviews.should == reviews
  end


end

zdecent_matchers.rb

RSpec::Matchers.define :expose do |expected|
  match do |actual|
    actual.class._exposed.include? expected
  end

  failure_message_for_should do |actual|
    "expected %p to expose a method named %p" % [actual, expected]
  end

  description do
    "expose the method %p" % expected
  end

end

zdecent_stubs.rb

module DecentStubs

  def _exposed
    @exposed ||= []
    @exposed
  end

  def expose(attr, &block)
    _exposed << attr
    if block
      define_method attr, &block
    else
      attr_reader attr
    end
  end

end

class ApplicationController
  extend DecentStubs
end