Use capture_emails helper to improve email assertions in specs (#29245)

spec/controllers/admin/disputes/appeals_controller_spec.rb

@@ -35,7 +35,7 @@ RSpec.describe Admin::Disputes::AppealsController do
     let(:current_user) { Fabricate(:user, role: UserRole.find_by(name: 'Admin')) }
 
     it 'redirects back to the strike page and notifies target account about approved appeal', :sidekiq_inline do
-      subject
+      emails = capture_emails { subject }
 
       expect(response)
         .to redirect_to(disputes_strike_path(appeal.strike))
@@ -43,9 +43,13 @@ RSpec.describe Admin::Disputes::AppealsController do
       expect(target_account.reload)
         .to_not be_suspended
 
-      expect(UserMailer.deliveries.size).to eq(1)
-      expect(UserMailer.deliveries.first.to.first).to eq(target_account.user.email)
-      expect(UserMailer.deliveries.first.subject).to eq(I18n.t('user_mailer.appeal_approved.subject', date: I18n.l(appeal.created_at)))
+      expect(emails.size)
+        .to eq(1)
+      expect(emails.first)
+        .to have_attributes(
+          to: contain_exactly(target_account.user.email),
+          subject: eq(I18n.t('user_mailer.appeal_approved.subject', date: I18n.l(appeal.created_at)))
+        )
     end
   end
 
@@ -55,14 +59,19 @@ RSpec.describe Admin::Disputes::AppealsController do
     let(:current_user) { Fabricate(:user, role: UserRole.find_by(name: 'Admin')) }
 
     it 'redirects back to the strike page and notifies target account about rejected appeal', :sidekiq_inline do
-      subject
+      emails = capture_emails { subject }
 
       expect(response)
         .to redirect_to(disputes_strike_path(appeal.strike))
 
-      expect(UserMailer.deliveries.size).to eq(1)
-      expect(UserMailer.deliveries.first.to.first).to eq(target_account.user.email)
-      expect(UserMailer.deliveries.first.subject).to eq(I18n.t('user_mailer.appeal_rejected.subject', date: I18n.l(appeal.created_at)))
+      expect(emails.size)
+        .to eq(1)
+
+      expect(emails.first)
+        .to have_attributes(
+          to: contain_exactly(target_account.user.email),
+          subject: eq(I18n.t('user_mailer.appeal_rejected.subject', date: I18n.l(appeal.created_at)))
+        )
     end
   end
 end

spec/controllers/admin/resets_controller_spec.rb

@@ -5,6 +5,8 @@ require 'rails_helper'
 describe Admin::ResetsController do
   render_views
 
+  subject { post :create, params: { account_id: account.id } }
+
   let(:account) { Fabricate(:account) }
 
   before do
@@ -13,11 +15,11 @@ describe Admin::ResetsController do
 
   describe 'POST #create', :sidekiq_inline do
     it 'redirects to admin accounts page' do
-      expect do
-        post :create, params: { account_id: account.id }
-      end.to change(Devise.mailer.deliveries, :size).by(2)
+      emails = capture_emails { subject }
 
-      expect(Devise.mailer.deliveries).to have_attributes(
+      expect(emails.size)
+        .to eq(2)
+      expect(emails).to have_attributes(
         first: have_attributes(
           to: include(account.user.email),
           subject: I18n.t('devise.mailer.password_change.subject')

spec/controllers/auth/sessions_controller_spec.rb

@@ -124,7 +124,7 @@ RSpec.describe Auth::SessionsController do
         end
 
         it 'logs the user in and sends suspicious email and redirects home', :sidekiq_inline do
-          subject
+          emails = capture_emails { subject }
 
           expect(response)
             .to redirect_to(root_path)
@@ -132,9 +132,13 @@ RSpec.describe Auth::SessionsController do
           expect(controller.current_user)
             .to eq user
 
-          expect(UserMailer.deliveries.size).to eq(1)
-          expect(UserMailer.deliveries.first.to.first).to eq(user.email)
-          expect(UserMailer.deliveries.first.subject).to eq(I18n.t('user_mailer.suspicious_sign_in.subject'))
+          expect(emails.size)
+            .to eq(1)
+          expect(emails.first)
+            .to have_attributes(
+              to: contain_exactly(user.email),
+              subject: eq(I18n.t('user_mailer.suspicious_sign_in.subject'))
+            )
         end
       end
 
@@ -260,21 +264,27 @@ RSpec.describe Auth::SessionsController do
           end
 
           it 'does not log the user in, sets a flash message, and sends a suspicious sign in email', :sidekiq_inline do
-            Auth::SessionsController::MAX_2FA_ATTEMPTS_PER_HOUR.times do
-              post :create, params: { user: { otp_attempt: '1234' } }, session: { attempt_user_id: user.id, attempt_user_updated_at: user.updated_at.to_s }
-              expect(controller.current_user).to be_nil
+            emails = capture_emails do
+              Auth::SessionsController::MAX_2FA_ATTEMPTS_PER_HOUR.times do
+                post :create, params: { user: { otp_attempt: '1234' } }, session: { attempt_user_id: user.id, attempt_user_updated_at: user.updated_at.to_s }
+                expect(controller.current_user).to be_nil
+              end
+              post :create, params: { user: { otp_attempt: user.current_otp } }, session: { attempt_user_id: user.id, attempt_user_updated_at: user.updated_at.to_s }
             end
 
-            post :create, params: { user: { otp_attempt: user.current_otp } }, session: { attempt_user_id: user.id, attempt_user_updated_at: user.updated_at.to_s }
-
             expect(controller.current_user)
               .to be_nil
+
             expect(flash[:alert])
               .to match I18n.t('users.rate_limited')
 
-            expect(UserMailer.deliveries.size).to eq(1)
-            expect(UserMailer.deliveries.first.to.first).to eq(user.email)
-            expect(UserMailer.deliveries.first.subject).to eq(I18n.t('user_mailer.failed_2fa.subject'))
+            expect(emails.size)
+              .to eq(1)
+            expect(emails.first)
+              .to have_attributes(
+                to: contain_exactly(user.email),
+                subject: eq(I18n.t('user_mailer.failed_2fa.subject'))
+              )
           end
         end
 

spec/controllers/disputes/appeals_controller_spec.rb

@@ -18,9 +18,15 @@ RSpec.describe Disputes::AppealsController do
       let(:params) { { strike_id: strike.id, appeal: { text: 'Foo' } } }
 
       it 'notifies staff about new appeal and redirects back to strike page', :sidekiq_inline do
-        subject
+        emails = capture_emails { subject }
 
-        expect(ActionMailer::Base.deliveries.first.to).to eq([admin.email])
+        expect(emails.size)
+          .to eq(1)
+        expect(emails.first)
+          .to have_attributes(
+            to: contain_exactly(admin.email),
+            subject: eq(I18n.t('admin_mailer.new_appeal.subject', username: current_user.account.acct, instance: Rails.configuration.x.local_domain))
+          )
         expect(response).to redirect_to(disputes_strike_path(strike.id))
       end
     end
@@ -31,9 +37,9 @@ RSpec.describe Disputes::AppealsController do
       let(:params) { { strike_id: strike.id, appeal: { text: '' } } }
 
       it 'does not send email and renders strike show page', :sidekiq_inline do
-        subject
+        emails = capture_emails { subject }
 
-        expect(ActionMailer::Base.deliveries.size).to eq(0)
+        expect(emails).to be_empty
         expect(response).to render_template('disputes/strikes/show')
       end
     end