在RSpec Controller规范中测试RJS的最佳方法是什么？

require 'rails_helper'

RSpec.describe YourController, type: :controller do
  render_views

  describe "GET #your_action" do
    it "renders the correct template" do
      get :your_action
      expect(response).to render_template("your_action")
    end
  end
end

module ActionViewHelper
  def render_view(template, locals = {})
    controller.prepend_view_path "spec/fixtures/views"
    controller.render_to_string(template, locals: locals)
  end
end

RSpec.configure do |config|
  config.include ActionViewHelper, type: :controller
end

require 'rails_helper'

RSpec.describe YourController, type: :controller do
  render_views

  describe "GET #your_action" do
    it "renders the correct template" do
      get :your_action
      expect(response).to render_template("your_action")
    end

    it "renders the correct RJS" do
      get :your_action
      rendered_view = render_view("your_action.rjs")
      expect(rendered_view).to include("$('some_element').update('some_content')")
    end
  end
end