Verify page content in `ChallengableConcern` spec (#33895)

spec/controllers/concerns/challengable_concern_spec.rb

@@ -3,6 +3,8 @@
 require 'rails_helper'
 
 RSpec.describe ChallengableConcern do
+  render_views
+
   controller(ApplicationController) do
     include ChallengableConcern # rubocop:disable RSpec/DescribedClass
 
@@ -85,29 +87,35 @@ RSpec.describe ChallengableConcern do
       before { get :foo }
 
       it 'renders challenge' do
-        expect(response).to render_template('auth/challenges/new', layout: :auth)
+        expect(response.parsed_body)
+          .to have_title(I18n.t('challenge.prompt'))
       end
-
-      # See Auth::ChallengesControllerSpec
     end
 
     context 'with POST requests' do
       before { post :bar }
 
       it 'renders challenge' do
-        expect(response).to render_template('auth/challenges/new', layout: :auth)
+        expect(response.parsed_body)
+          .to have_title(I18n.t('challenge.prompt'))
       end
 
       it 'accepts correct password' do
         post :bar, params: { form_challenge: { current_password: password } }
-        expect(response.body).to eq 'bar'
-        expect(session[:challenge_passed_at]).to_not be_nil
+
+        expect(response.body)
+          .to eq 'bar'
+        expect(session[:challenge_passed_at])
+          .to_not be_nil
       end
 
       it 'rejects wrong password' do
         post :bar, params: { form_challenge: { current_password: 'dddfff888123' } }
-        expect(response.body).to render_template('auth/challenges/new', layout: :auth)
-        expect(session[:challenge_passed_at]).to be_nil
+
+        expect(response.parsed_body)
+          .to have_title(I18n.t('challenge.prompt'))
+        expect(session[:challenge_passed_at])
+          .to be_nil
       end
     end
   end