Fix RSpec/ScatteredSetup cop (#24848)

.rubocop_todo.yml

@@ -648,14 +648,6 @@ RSpec/RepeatedExampleGroupDescription:
     - 'spec/controllers/admin/reports/actions_controller_spec.rb'
     - 'spec/policies/report_note_policy_spec.rb'
 
-RSpec/ScatteredSetup:
-  Exclude:
-    - 'spec/controllers/activitypub/followers_synchronizations_controller_spec.rb'
-    - 'spec/controllers/activitypub/outboxes_controller_spec.rb'
-    - 'spec/controllers/admin/disputes/appeals_controller_spec.rb'
-    - 'spec/controllers/auth/registrations_controller_spec.rb'
-    - 'spec/services/activitypub/process_account_service_spec.rb'
-
 # This cop supports safe autocorrection (--autocorrect).
 RSpec/SharedContext:
   Exclude:

spec/controllers/activitypub/followers_synchronizations_controller_spec.rb

@@ -14,9 +14,7 @@ RSpec.describe ActivityPub::FollowersSynchronizationsController do
     follower_2.follow!(account)
     follower_3.follow!(account)
     follower_4.follow!(account)
-  end
 
-  before do
     allow(controller).to receive(:signed_request_actor).and_return(remote_account)
   end
 

spec/controllers/activitypub/outboxes_controller_spec.rb

@@ -27,9 +27,7 @@ RSpec.describe ActivityPub::OutboxesController do
     Fabricate(:status, account: account, visibility: :private)
     Fabricate(:status, account: account, visibility: :direct)
     Fabricate(:status, account: account, visibility: :limited)
-  end
 
-  before do
     allow(controller).to receive(:signed_request_actor).and_return(remote_account)
   end
 

spec/controllers/admin/disputes/appeals_controller_spec.rb

@@ -5,16 +5,16 @@ require 'rails_helper'
 RSpec.describe Admin::Disputes::AppealsController do
   render_views
 
-  before { sign_in current_user, scope: :user }
+  before do
+    sign_in current_user, scope: :user
+
+    target_account.suspend!
+  end
 
   let(:target_account) { Fabricate(:account) }
   let(:strike) { Fabricate(:account_warning, target_account: target_account, action: :suspend) }
   let(:appeal) { Fabricate(:appeal, strike: strike, account: target_account) }
 
-  before do
-    target_account.suspend!
-  end
-
   describe 'POST #approve' do
     let(:current_user) { Fabricate(:user, role: UserRole.find_by(name: 'Admin')) }
 

spec/controllers/auth/registrations_controller_spec.rb

@@ -101,6 +101,8 @@ RSpec.describe Auth::RegistrationsController do
 
     before do
       session[:registration_form_time] = 5.seconds.ago
+
+      request.env['devise.mapping'] = Devise.mappings[:user]
     end
 
     around do |example|
@@ -109,8 +111,6 @@ RSpec.describe Auth::RegistrationsController do
       end
     end
 
-    before { request.env['devise.mapping'] = Devise.mappings[:user] }
-
     context do
       subject do
         Setting.registrations_mode = 'open'

spec/services/activitypub/process_account_service_spec.rb

@@ -139,10 +139,6 @@ RSpec.describe ActivityPub::ProcessAccountService, type: :service do
   end
 
   context 'when Accounts referencing other accounts' do
-    before do
-      stub_const 'ActivityPub::ProcessAccountService::DISCOVERIES_PER_REQUEST', 5
-    end
-
     let(:payload) do
       {
         '@context': ['https://www.w3.org/ns/activitystreams'],
@@ -155,6 +151,8 @@ RSpec.describe ActivityPub::ProcessAccountService, type: :service do
     end
 
     before do
+      stub_const 'ActivityPub::ProcessAccountService::DISCOVERIES_PER_REQUEST', 5
+
       8.times do |i|
         actor_json = {
           '@context': ['https://www.w3.org/ns/activitystreams'],