Speed up notification service specs

spec/services/notification_service_spec.rb

@@ -286,10 +286,10 @@ RSpec.describe NotificationService, :mailer do
 
   describe 'Notes' do
     context 'issue note' do
-      let(:project) { create(:project, :private) }
-      let(:issue) { create(:issue, project: project, assignees: [assignee]) }
-      let(:mentioned_issue) { create(:issue, assignees: issue.assignees) }
-      let(:author) { create(:user) }
+      let_it_be(:project) { create(:project, :private) }
+      let_it_be(:issue) { create(:issue, project: project, assignees: [assignee]) }
+      let_it_be(:mentioned_issue) { create(:issue, assignees: issue.assignees) }
+      let_it_be_with_reload(:author) { create(:user) }
       let(:note) { create(:note_on_issue, author: author, noteable: issue, project_id: issue.project_id, note: '@mention referenced, @unsubscribed_mentioned and @outsider also') }
 
       subject { notification.new_note(note) }
@@ -368,7 +368,7 @@ RSpec.describe NotificationService, :mailer do
       end
 
       describe '#new_note' do
-        before do
+        before_all do
           build_team(project)
           project.add_maintainer(issue.author)
           project.add_maintainer(assignee)
@@ -390,9 +390,12 @@ RSpec.describe NotificationService, :mailer do
         end
 
         context 'with users' do
-          before do
+          before_all do
             add_users(project)
             add_user_subscriptions(issue)
+          end
+
+          before do
             reset_delivered_emails!
           end
 
@@ -569,17 +572,20 @@ RSpec.describe NotificationService, :mailer do
     end
 
     context 'issue note mention', :deliver_mails_inline do
-      let(:issue) { create(:issue, project: project, assignees: [assignee]) }
-      let(:mentioned_issue) { create(:issue, assignees: issue.assignees) }
-      let(:author) { create(:user) }
+      let_it_be(:issue) { create(:issue, project: project, assignees: [assignee]) }
+      let_it_be(:mentioned_issue) { create(:issue, assignees: issue.assignees) }
+      let_it_be(:author) { create(:user) }
       let(:note) { create(:note_on_issue, author: author, noteable: issue, project_id: issue.project_id, note: '@all mentioned') }
 
-      before do
+      before_all do
         build_team(project)
         build_group(project)
         add_users(project)
         add_user_subscriptions(issue)
         project.add_maintainer(author)
+      end
+
+      before do
         reset_delivered_emails!
       end
 
@@ -726,18 +732,21 @@ RSpec.describe NotificationService, :mailer do
     end
 
     context 'commit note', :deliver_mails_inline do
-      let(:project) { create(:project, :public, :repository) }
-      let(:note) { create(:note_on_commit, project: project) }
+      let_it_be(:project) { create(:project, :public, :repository) }
+      let_it_be(:note) { create(:note_on_commit, project: project) }
 
-      before do
+      before_all do
         build_team(project)
         build_group(project)
-        reset_delivered_emails!
-        allow(note.noteable).to receive(:author).and_return(@u_committer)
         update_custom_notification(:new_note, @u_guest_custom, resource: project)
         update_custom_notification(:new_note, @u_custom_global)
       end
 
+      before do
+        reset_delivered_emails!
+        allow(note.noteable).to receive(:author).and_return(@u_committer)
+      end
+
       describe '#new_note, #perform_enqueued_jobs' do
         it do
           notification.new_note(note)
@@ -785,12 +794,12 @@ RSpec.describe NotificationService, :mailer do
     end
 
     context "merge request diff note", :deliver_mails_inline do
-      let(:project) { create(:project, :repository) }
-      let(:user) { create(:user) }
-      let(:merge_request) { create(:merge_request, source_project: project, assignees: [user], author: create(:user)) }
-      let(:note) { create(:diff_note_on_merge_request, project: project, noteable: merge_request) }
+      let_it_be(:project) { create(:project, :repository) }
+      let_it_be(:user) { create(:user) }
+      let_it_be(:merge_request) { create(:merge_request, source_project: project, assignees: [user], author: create(:user)) }
+      let_it_be(:note) { create(:diff_note_on_merge_request, project: project, noteable: merge_request) }
 
-      before do
+      before_all do
         build_team(note.project)
         project.add_maintainer(merge_request.author)
         merge_request.assignees.each { |assignee| project.add_maintainer(assignee) }
@@ -2521,15 +2530,15 @@ RSpec.describe NotificationService, :mailer do
 
   describe 'Pipelines', :deliver_mails_inline do
     describe '#pipeline_finished' do
-      let(:project) { create(:project, :public, :repository) }
-      let(:u_member) { create(:user) }
-      let(:u_watcher) { create_user_with_notification(:watch, 'watcher') }
+      let_it_be(:project) { create(:project, :public, :repository) }
+      let_it_be(:u_member) { create(:user) }
+      let_it_be(:u_watcher) { create_user_with_notification(:watch, 'watcher') }
 
-      let(:u_custom_notification_unset) do
+      let_it_be(:u_custom_notification_unset) do
         create_user_with_notification(:custom, 'custom_unset')
       end
 
-      let(:u_custom_notification_enabled) do
+      let_it_be(:u_custom_notification_enabled) do
         user = create_user_with_notification(:custom, 'custom_enabled')
         update_custom_notification(:success_pipeline, user, resource: project)
         update_custom_notification(:failed_pipeline, user, resource: project)
@@ -2537,7 +2546,7 @@ RSpec.describe NotificationService, :mailer do
         user
       end
 
-      let(:u_custom_notification_disabled) do
+      let_it_be(:u_custom_notification_disabled) do
         user = create_user_with_notification(:custom, 'custom_disabled')
         update_custom_notification(:success_pipeline, user, resource: project, value: false)
         update_custom_notification(:failed_pipeline, user, resource: project, value: false)
@@ -2556,13 +2565,15 @@ RSpec.describe NotificationService, :mailer do
                before_sha: '00000000')
       end
 
-      before do
+      before_all do
         project.add_maintainer(u_member)
         project.add_maintainer(u_watcher)
         project.add_maintainer(u_custom_notification_unset)
         project.add_maintainer(u_custom_notification_enabled)
         project.add_maintainer(u_custom_notification_disabled)
+      end
 
+      before do
         reset_delivered_emails!
       end