Re: [rspec] Trouble using the new class_spy feature

[Jon Rowe]

Hi Cynthia

class_spy doesn’t override the constant automatically, it requires you to add .as_stubbed_const so it will override the constant when you call it from your controller. class_spy is essentially class_double.as_null_object, see the docs here: https://relishapp.com/rspec/rspec-mocks/v/3-0/docs/verifying-doubles/using-a-class-double

Regards

Jon Rowe

---------------------------

jonrowe.co.uk

On Monday, 8 September 2014 at 9:04, Cynthia Kiser wrote:

I am trying to test that a particular Rails controller action deletes all items and then recreates them from an RSS feed. The new class_spy method seemed just perfect for what I was trying to do but I can't get it to work. What am I misunderstanding from the docs?

/app/controllers/news_configuration_controller.rb

class NewsConfigurationController < ApplicationController

  # GET /news_configuration/refresh_from_www

  def refresh_from_www

    NewsRelease.delete_all

    redirect_to news_configuration_path

  end

end

/spec/controllers/news_configuration_controller_spec.rb

RSpec.describe NewsConfigurationController, :type => :controller do

  describe "GET 'refresh_from_www'" do

    it "refreshes news releases" do

      news_release_class = class_spy("NewsRelease")

      get :refresh_from_www, { }, valid_session

      expect(news_release_class).to have_received(:delete_all)

    end

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