foo_controller_spec.rb

describe FooController do
  stub_record_and_collection_urls!

  describe "GET /foos" do
    # ...
  end

  # ...
end

spec_helper.rb

module CollectionAndRecordPathSpecHelpers
  %w(collection_path collection_url record_path record_url).each do |method|
    define_method method {|*args| controller.send(method, *args) }
  end

  def self.included(base)
    def base.stub_record_and_collection_urls!
      before do
        controller.stub!(:collection_path).and_return("/collection/path")
        controller.stub!(:collection_url).and_return("http://test.host/collection/path")
        controller.stub!(:record_path).and_return("/record/path")
        controller.stub!(:record_url).and_return("http://test.host/collection/path")
      end
    end
  end
end

Spec::Runner.configure do |config|
  config.include CollectionAndRecordPathSpecHelpers, :type => :controller
end