Replace set to let_it_be in spec

Get rids of `set` in specs

spec/frontend/fixtures/autocomplete_sources.rb

@@ -5,10 +5,10 @@ require 'spec_helper'
 describe Projects::AutocompleteSourcesController, '(JavaScript fixtures)', type: :controller do
   include JavaScriptFixturesHelpers
 
-  set(:admin) { create(:admin) }
-  set(:group) { create(:group, name: 'frontend-fixtures') }
-  set(:project) { create(:project, namespace: group, path: 'autocomplete-sources-project') }
-  set(:issue) { create(:issue, project: project) }
+  let_it_be(:admin) { create(:admin) }
+  let_it_be(:group) { create(:group, name: 'frontend-fixtures') }
+  let_it_be(:project) { create(:project, namespace: group, path: 'autocomplete-sources-project') }
+  let_it_be(:issue) { create(:issue, project: project) }
 
   before(:all) do
     clean_frontend_fixtures('autocomplete_sources/')

spec/frontend/fixtures/commit.rb

@@ -5,8 +5,8 @@ require 'spec_helper'
 describe Projects::CommitController, '(JavaScript fixtures)', type: :controller do
   include JavaScriptFixturesHelpers
 
-  set(:project)  { create(:project, :repository) }
-  set(:user)     { create(:user) }
+  let_it_be(:project) { create(:project, :repository) }
+  let_it_be(:user)    { create(:user) }
   let(:commit)        { project.commit("master") }
 
   render_views

spec/mailers/notify_spec.rb

@@ -13,9 +13,9 @@ describe Notify do
 
   let(:current_user_sanitized) { 'www_example_com' }
 
-  let_it_be(:user) { create(:user) }
-  let_it_be(:current_user) { create(:user, email: "current@email.com", name: 'www.example.com') }
-  let_it_be(:assignee) { create(:user, email: 'assignee@example.com', name: 'John Doe') }
+  let_it_be(:user, reload: true) { create(:user) }
+  let_it_be(:current_user, reload: true) { create(:user, email: "current@email.com", name: 'www.example.com') }
+  let_it_be(:assignee, reload: true) { create(:user, email: 'assignee@example.com', name: 'John Doe') }
 
   let_it_be(:merge_request) do
     create(:merge_request, source_project: project,

spec/requests/api/internal/base_spec.rb

@@ -3,15 +3,14 @@
 require 'spec_helper'
 
 describe API::Internal::Base do
-  set(:user) { create(:user) }
+  let_it_be(:user, reload: true) { create(:user) }
+  let_it_be(:project, reload: true) { create(:project, :repository, :wiki_repo) }
+  let_it_be(:personal_snippet) { create(:personal_snippet, :repository, author: user) }
+  let_it_be(:project_snippet) { create(:project_snippet, :repository, author: user, project: project) }
   let(:key) { create(:key, user: user) }
-  set(:project) { create(:project, :repository, :wiki_repo) }
   let(:secret_token) { Gitlab::Shell.secret_token }
   let(:gl_repository) { "project-#{project.id}" }
   let(:reference_counter) { double('ReferenceCounter') }
-
-  let_it_be(:personal_snippet) { create(:personal_snippet, :repository, author: user) }
-  let_it_be(:project_snippet) { create(:project_snippet, :repository, author: user, project: project) }
   let(:snippet_changes) { "#{TestEnv::BRANCH_SHA['snippet/single-file']} #{TestEnv::BRANCH_SHA['snippet/edit-file']} refs/heads/snippet/edit-file" }
 
   describe "GET /internal/check" do

spec/requests/lfs_http_spec.rb

@@ -6,9 +6,9 @@ describe 'Git LFS API and storage' do
   include ProjectForksHelper
   include WorkhorseHelpers
 
-  set(:project) { create(:project, :repository) }
-  set(:other_project) { create(:project, :repository) }
-  set(:user) { create(:user) }
+  let_it_be(:project, reload: true) { create(:project, :repository) }
+  let_it_be(:other_project) { create(:project, :repository) }
+  let_it_be(:user) { create(:user) }
   let!(:lfs_object) { create(:lfs_object, :with_file) }
 
   let(:headers) do

spec/services/metrics/dashboard/update_dashboard_service_spec.rb

@@ -5,9 +5,9 @@ require 'spec_helper'
 describe Metrics::Dashboard::UpdateDashboardService, :use_clean_rails_memory_store_caching do
   include MetricsDashboardHelpers
 
-  set(:user) { create(:user) }
-  set(:project) { create(:project, :repository) }
-  set(:environment) { create(:environment, project: project) }
+  let_it_be(:user) { create(:user) }
+  let_it_be(:project) { create(:project, :repository) }
+  let_it_be(:environment) { create(:environment, project: project) }
 
   describe '#execute' do
     subject(:service_call) { described_class.new(project, user, params).execute }

spec/support/shared_contexts/finders/issues_finder_shared_contexts.rb

 # frozen_string_literal: true
 
 RSpec.shared_context 'IssuesFinder context' do
-  set(:user) { create(:user) }
-  set(:user2) { create(:user) }
-  set(:group) { create(:group) }
-  set(:subgroup) { create(:group, parent: group) }
-  set(:project1) { create(:project, group: group) }
-  set(:project2) { create(:project) }
-  set(:project3) { create(:project, group: subgroup) }
-  set(:milestone) { create(:milestone, project: project1) }
-  set(:label) { create(:label, project: project2) }
-  set(:label2) { create(:label, project: project2) }
-  set(:issue1) { create(:issue, author: user, assignees: [user], project: project1, milestone: milestone, title: 'gitlab', created_at: 1.week.ago, updated_at: 1.week.ago) }
-  set(:issue2) { create(:issue, author: user, assignees: [user], project: project2, description: 'gitlab', created_at: 1.week.from_now, updated_at: 1.week.from_now) }
-  set(:issue3) { create(:issue, author: user2, assignees: [user2], project: project2, title: 'tanuki', description: 'tanuki', created_at: 2.weeks.from_now, updated_at: 2.weeks.from_now) }
-  set(:issue4) { create(:issue, project: project3) }
-  set(:award_emoji1) { create(:award_emoji, name: 'thumbsup', user: user, awardable: issue1) }
-  set(:award_emoji2) { create(:award_emoji, name: 'thumbsup', user: user2, awardable: issue2) }
-  set(:award_emoji3) { create(:award_emoji, name: 'thumbsdown', user: user, awardable: issue3) }
+  let_it_be(:user) { create(:user) }
+  let_it_be(:user2) { create(:user) }
+  let_it_be(:group) { create(:group) }
+  let_it_be(:subgroup) { create(:group, parent: group) }
+  let_it_be(:project1, reload: true) { create(:project, group: group) }
+  let_it_be(:project2, reload: true) { create(:project) }
+  let_it_be(:project3, reload: true) { create(:project, group: subgroup) }
+  let_it_be(:milestone) { create(:milestone, project: project1) }
+  let_it_be(:label) { create(:label, project: project2) }
+  let_it_be(:label2) { create(:label, project: project2) }
+  let_it_be(:issue1, reload: true) { create(:issue, author: user, assignees: [user], project: project1, milestone: milestone, title: 'gitlab', created_at: 1.week.ago, updated_at: 1.week.ago) }
+  let_it_be(:issue2, reload: true) { create(:issue, author: user, assignees: [user], project: project2, description: 'gitlab', created_at: 1.week.from_now, updated_at: 1.week.from_now) }
+  let_it_be(:issue3, reload: true) { create(:issue, author: user2, assignees: [user2], project: project2, title: 'tanuki', description: 'tanuki', created_at: 2.weeks.from_now, updated_at: 2.weeks.from_now) }
+  let_it_be(:issue4, reload: true) { create(:issue, project: project3) }
+  let_it_be(:award_emoji1) { create(:award_emoji, name: 'thumbsup', user: user, awardable: issue1) }
+  let_it_be(:award_emoji2) { create(:award_emoji, name: 'thumbsup', user: user2, awardable: issue2) }
+  let_it_be(:award_emoji3) { create(:award_emoji, name: 'thumbsdown', user: user, awardable: issue3) }
 end
 
 RSpec.shared_context 'IssuesFinder#execute context' do

spec/support/shared_contexts/finders/merge_requests_finder_shared_contexts.rb

@@ -13,15 +13,14 @@ RSpec.shared_context 'MergeRequestsFinder multiple projects with merge requests
     end
   end
 
-  set(:user)  { create(:user) }
-  set(:user2) { create(:user) }
-
-  set(:group) { create(:group) }
-  set(:subgroup) { create(:group, parent: group) }
-  set(:project1) do
+  let_it_be(:user)  { create(:user) }
+  let_it_be(:user2) { create(:user) }
+  let_it_be(:group) { create(:group) }
+  let_it_be(:subgroup) { create(:group, parent: group) }
+  let_it_be(:project1, reload: true) do
     allow_gitaly_n_plus_1 { create(:project, :public, group: group) }
   end
-  # We cannot use `set` here otherwise we get:
+  # We cannot use `let_it_be` here otherwise we get:
   #   Failure/Error: allow(RepositoryForkWorker).to receive(:perform_async).and_return(true)
   #   The use of doubles or partial doubles from rspec-mocks outside of the per-test lifecycle is not supported.
   let(:project2) do
@@ -36,13 +35,13 @@ RSpec.shared_context 'MergeRequestsFinder multiple projects with merge requests
       end
     end
   end
-  set(:project4) do
+  let_it_be(:project4, reload: true) do
     allow_gitaly_n_plus_1 { create(:project, :repository, group: subgroup) }
   end
-  set(:project5) do
+  let_it_be(:project5, reload: true) do
     allow_gitaly_n_plus_1 { create(:project, group: subgroup) }
   end
-  set(:project6) do
+  let_it_be(:project6, reload: true) do
     allow_gitaly_n_plus_1 { create(:project, group: subgroup) }
   end
 

spec/support/shared_contexts/finders/users_finder_shared_contexts.rb

 # frozen_string_literal: true
 
 RSpec.shared_context 'UsersFinder#execute filter by project context' do
-  set(:normal_user) { create(:user, username: 'johndoe') }
-  set(:blocked_user) { create(:user, :blocked, username: 'notsorandom') }
-  set(:external_user) { create(:user, :external) }
-  set(:omniauth_user) { create(:omniauth_user, provider: 'twitter', extern_uid: '123456') }
+  let_it_be(:normal_user) { create(:user, username: 'johndoe') }
+  let_it_be(:blocked_user) { create(:user, :blocked, username: 'notsorandom') }
+  let_it_be(:external_user) { create(:user, :external) }
+  let_it_be(:omniauth_user) { create(:omniauth_user, provider: 'twitter', extern_uid: '123456') }
 end

spec/support/shared_contexts/mailers/notify_shared_context.rb

 # frozen_string_literal: true
 
 RSpec.shared_context 'gitlab email notification' do
-  set(:group) { create(:group) }
-  set(:subgroup) { create(:group, parent: group) }
-  set(:project) { create(:project, :repository, name: 'a-known-name', group: group) }
-  set(:recipient) { create(:user, email: 'recipient@example.com') }
-
+  let_it_be(:group, reload: true) { create(:group) }
+  let_it_be(:subgroup) { create(:group, parent: group) }
+  let_it_be(:project, reload: true) { create(:project, :repository, name: 'a-known-name', group: group) }
+  let_it_be(:recipient, reload: true) { create(:user, email: 'recipient@example.com') }
   let(:gitlab_sender_display_name) { Gitlab.config.gitlab.email_display_name }
   let(:gitlab_sender) { Gitlab.config.gitlab.email_from }
   let(:gitlab_sender_reply_to) { Gitlab.config.gitlab.email_reply_to }

spec/support/shared_contexts/policies/project_policy_shared_context.rb

 # frozen_string_literal: true
 
 RSpec.shared_context 'ProjectPolicy context' do
-  set(:guest) { create(:user) }
-  set(:reporter) { create(:user) }
-  set(:developer) { create(:user) }
-  set(:maintainer) { create(:user) }
-  set(:owner) { create(:user) }
-  set(:admin) { create(:admin) }
+  let_it_be(:guest) { create(:user) }
+  let_it_be(:reporter) { create(:user) }
+  let_it_be(:developer) { create(:user) }
+  let_it_be(:maintainer) { create(:user) }
+  let_it_be(:owner) { create(:user) }
+  let_it_be(:admin) { create(:admin) }
   let(:project) { create(:project, :public, namespace: owner.namespace) }
 
   let(:base_guest_permissions) do

spec/support/shared_examples/finders/snippet_visibility_shared_examples.rb

@@ -8,12 +8,12 @@ RSpec.shared_examples 'snippet visibility' do
     DatabaseCleaner.clean_with(:truncation)
   end
 
-  set(:author) { create(:user) }
-  set(:member) { create(:user) }
-  set(:external) { create(:user, :external) }
-  set(:non_member) { create(:user) }
+  let_it_be(:author) { create(:user) }
+  let_it_be(:member) { create(:user) }
+  let_it_be(:external) { create(:user, :external) }
+  let_it_be(:non_member) { create(:user) }
 
-  set(:project) do
+  let_it_be(:project, reload: true) do
     create(:project).tap do |project|
       project.add_developer(author)
       project.add_developer(member)

spec/support/shared_examples/quick_actions/issuable/issuable_quick_actions_shared_examples.rb

@@ -224,7 +224,7 @@ RSpec.shared_examples 'issuable quick actions' do
   end
 
   context 'when user can update issuable' do
-    set(:developer) { create(:user) }
+    let_it_be(:developer) { create(:user) }
     let(:note_author) { developer }
 
     before do
@@ -251,7 +251,7 @@ RSpec.shared_examples 'issuable quick actions' do
   end
 
   context 'when user cannot update issuable' do
-    set(:non_member) { create(:user) }
+    let_it_be(:non_member) { create(:user) }
     let(:note_author) { non_member }
 
     it 'applies commands that user can execute' do

spec/support/shared_examples/requests/api/boards_shared_examples.rb

@@ -165,7 +165,7 @@ RSpec.shared_examples 'group and project boards' do |route_definition, ee = fals
     end
 
     context "when the user is parent owner" do
-      set(:owner) { create(:user) }
+      let_it_be(:owner, reload: true) { create(:user) }
 
       before do
         if board_parent.try(:namespace)