Hi Cynthia class_spy doesn’t override the constant automatically, it requires you to add .as_stubbed_const to override the constant so you call the spy from your controller.
As you’ve observed 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 9:31, Cynthia Kiser wrote: > I would like to test that a Rails controller I am writing deletes all > NewsRelease objects and recreates them from an RSS feed. The new class_spy > feature seemed like a good way to test that my controller action is calling > the expected methods. But I can't seem to make it work - in context or even > when I try to call the methods directly in the example (see final example > below). I also tried the class_double("NewsRelease").as_null_object and got > the same message. What am I doing wrong? > > /app/controller/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/controller/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 > > > it "redirects to the news configuration index page" do > get :refresh_from_www, {}, valid_session > expect(response).to redirect_to(news_configuration_path) > end > > > it "deletes news releases - method called in the spec" do > release = FactoryGirl.create(:news_release) > puts "News release is: " > puts release.inspect > news_release_class = class_spy("NewsRelease") > puts "The class spy is: " > puts news_release_class.inspect > # get :refresh_from_www, { }, valid_session > > items_deleted = NewsRelease.delete_all > puts "Deleted #{items_deleted} releases" > expect(news_release_class).to have_received(:delete_all) > end > end > end > > $ rspec -f doc spec/controllers/news_configuration_controller_spec.rb:60 > Run options: include > {:locations=>{"./spec/controllers/news_configuration_controller_spec.rb"=>[60]}} > > NewsConfigurationController > GET 'refresh_from_www' > refreshes news releases (FAILED - 1) > > redirects to the news configuration index page > > News release is: > #<NewsRelease id: 2011, title: "News Story", link: "http://www.caltech.edu";, > description: "Short blub", pubDate: "2014-08-24 23:17:28", guid: 1, > created_at: "2014-09-07 23:17:28", updated_at: "2014-09-07 23:17:28"> > The class spy is: > #<RSpec::Mocks::ClassVerifyingDouble:0x98c1c58 @name="NewsRelease"> > Deleted 1 releases > deletes news releases - method called in the spec (FAILED - 2) > > Failures: > > 1) NewsConfigurationController GET 'refresh_from_www' refreshes news > releases > Failure/Error: expect(news_release_class).to have_received(:delete_all) > (Double "NewsRelease").delete_all(any args) > expected: 1 time with any arguments > received: 0 times with any arguments > # ./spec/controllers/news_configuration_controller_spec.rb:64:in `block > (3 levels) in <top (required)>' > > 2) NewsConfigurationController GET 'refresh_from_www' deletes news releases > - method called in the spec > Failure/Error: expect(news_release_class).to have_received(:delete_all) > (Double "NewsRelease").delete_all(any args) > expected: 1 time with any arguments > received: 0 times with any arguments > # ./spec/controllers/news_configuration_controller_spec.rb:82:in `block > (3 levels) in <top (required)>' > > Finished in 0.21353 seconds (files took 2.94 seconds to load) > 3 examples, 2 failures > > Failed examples: > > rspec ./spec/controllers/news_configuration_controller_spec.rb:61 # > NewsConfigurationController GET 'refresh_from_www' refreshes news releases > rspec ./spec/controllers/news_configuration_controller_spec.rb:72 # > NewsConfigurationController GET 'refresh_from_www' deletes news releases - > method called in the spec > > > Gemflie.lock ...... > rspec-core (3.1.1) > rspec-expectations (3.1.0) > rspec-mocks (3.1.0) > rspec-rails (3.1.0) > > > > -- > You received this message because you are subscribed to the Google Groups > "rspec" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected] > (mailto:[email protected]). > To post to this group, send email to [email protected] > (mailto:[email protected]). > To view this discussion on the web visit > https://groups.google.com/d/msgid/rspec/121297c5-1422-4420-add1-4546073a2b10%40googlegroups.com > > (https://groups.google.com/d/msgid/rspec/121297c5-1422-4420-add1-4546073a2b10%40googlegroups.com?utm_medium=email&utm_source=footer). > For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "rspec" group. 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