Merge branch 'frozen-string-spec-some' into 'master'

Add some frozen string to spec/**/*.rb

See merge request gitlab-org/gitlab-ce!27341

154 files changed, 313 insertions, 4 deletions

diff --git a/changelogs/unreleased/frozen-string-spec-some.yml b/changelogs/unreleased/frozen-string-spec-some.yml
new file mode 100644
index 00000000000..55381d7ccbe
--- /dev/null
+++ b/changelogs/unreleased/frozen-string-spec-some.yml
@@ -0,0 +1,5 @@
+---
+title: Add some frozen string to spec/**/*.rb
+merge_request:
+author: gfyoung
+type: other
diff --git a/spec/bin/changelog_spec.rb b/spec/bin/changelog_spec.rb
index b2c2fb810e8..84bbe0525e5 100644
--- a/spec/bin/changelog_spec.rb
+++ b/spec/bin/changelog_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 load File.expand_path('../../bin/changelog', __dir__)
diff --git a/spec/config/mail_room_spec.rb b/spec/config/mail_room_spec.rb
index 74634dac713..94b29b89f24 100644
--- a/spec/config/mail_room_spec.rb
+++ b/spec/config/mail_room_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe 'mail_room.yml' do
diff --git a/spec/config/object_store_settings_spec.rb b/spec/config/object_store_settings_spec.rb
index efb620fe6dd..c38910cff0a 100644
--- a/spec/config/object_store_settings_spec.rb
+++ b/spec/config/object_store_settings_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 require Rails.root.join('config', 'object_store_settings.rb')
 
diff --git a/spec/config/settings_spec.rb b/spec/config/settings_spec.rb
index c89b5f48dc0..26d92593a08 100644
--- a/spec/config/settings_spec.rb
+++ b/spec/config/settings_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Settings do
diff --git a/spec/controllers/abuse_reports_controller_spec.rb b/spec/controllers/abuse_reports_controller_spec.rb
index 7104305e9d2..e360ab68cf2 100644
--- a/spec/controllers/abuse_reports_controller_spec.rb
+++ b/spec/controllers/abuse_reports_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe AbuseReportsController do
diff --git a/spec/controllers/admin/application_settings_controller_spec.rb b/spec/controllers/admin/application_settings_controller_spec.rb
index f3450a8289f..b89348b7a7e 100644
--- a/spec/controllers/admin/application_settings_controller_spec.rb
+++ b/spec/controllers/admin/application_settings_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Admin::ApplicationSettingsController do
diff --git a/spec/controllers/admin/applications_controller_spec.rb b/spec/controllers/admin/applications_controller_spec.rb
index 7e1ce70dc7d..9c9f658a0bd 100644
--- a/spec/controllers/admin/applications_controller_spec.rb
+++ b/spec/controllers/admin/applications_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Admin::ApplicationsController do
diff --git a/spec/controllers/admin/dashboard_controller_spec.rb b/spec/controllers/admin/dashboard_controller_spec.rb
index 6eb9f7867d5..4de69a9aea1 100644
--- a/spec/controllers/admin/dashboard_controller_spec.rb
+++ b/spec/controllers/admin/dashboard_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Admin::DashboardController do
diff --git a/spec/controllers/admin/gitaly_servers_controller_spec.rb b/spec/controllers/admin/gitaly_servers_controller_spec.rb
index b7378aa37d0..c75418a9ad4 100644
--- a/spec/controllers/admin/gitaly_servers_controller_spec.rb
+++ b/spec/controllers/admin/gitaly_servers_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Admin::GitalyServersController do
diff --git a/spec/controllers/admin/groups_controller_spec.rb b/spec/controllers/admin/groups_controller_spec.rb
index 22165faa625..509d8944e3a 100644
--- a/spec/controllers/admin/groups_controller_spec.rb
+++ b/spec/controllers/admin/groups_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Admin::GroupsController do
diff --git a/spec/controllers/admin/health_check_controller_spec.rb b/spec/controllers/admin/health_check_controller_spec.rb
index e13401fc06b..cf5b27156c0 100644
--- a/spec/controllers/admin/health_check_controller_spec.rb
+++ b/spec/controllers/admin/health_check_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Admin::HealthCheckController do
diff --git a/spec/controllers/admin/hooks_controller_spec.rb b/spec/controllers/admin/hooks_controller_spec.rb
index 9bc58344e4e..3c3a16ef9d5 100644
--- a/spec/controllers/admin/hooks_controller_spec.rb
+++ b/spec/controllers/admin/hooks_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Admin::HooksController do
diff --git a/spec/controllers/admin/identities_controller_spec.rb b/spec/controllers/admin/identities_controller_spec.rb
index e5428c8ddeb..68695afdb61 100644
--- a/spec/controllers/admin/identities_controller_spec.rb
+++ b/spec/controllers/admin/identities_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Admin::IdentitiesController do
diff --git a/spec/controllers/admin/impersonations_controller_spec.rb b/spec/controllers/admin/impersonations_controller_spec.rb
index 944680b3f42..b44797b23e5 100644
--- a/spec/controllers/admin/impersonations_controller_spec.rb
+++ b/spec/controllers/admin/impersonations_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Admin::ImpersonationsController do
diff --git a/spec/controllers/admin/projects_controller_spec.rb b/spec/controllers/admin/projects_controller_spec.rb
index 4caf8b46519..6b996798b74 100644
--- a/spec/controllers/admin/projects_controller_spec.rb
+++ b/spec/controllers/admin/projects_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Admin::ProjectsController do
diff --git a/spec/controllers/admin/runners_controller_spec.rb b/spec/controllers/admin/runners_controller_spec.rb
index 82e24213408..78c5e2a2656 100644
--- a/spec/controllers/admin/runners_controller_spec.rb
+++ b/spec/controllers/admin/runners_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Admin::RunnersController do
diff --git a/spec/controllers/admin/services_controller_spec.rb b/spec/controllers/admin/services_controller_spec.rb
index ec161b92245..1c518dab11e 100644
--- a/spec/controllers/admin/services_controller_spec.rb
+++ b/spec/controllers/admin/services_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Admin::ServicesController do
diff --git a/spec/controllers/admin/spam_logs_controller_spec.rb b/spec/controllers/admin/spam_logs_controller_spec.rb
index 2b946ec1c68..3bc49023357 100644
--- a/spec/controllers/admin/spam_logs_controller_spec.rb
+++ b/spec/controllers/admin/spam_logs_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Admin::SpamLogsController do
diff --git a/spec/controllers/admin/users_controller_spec.rb b/spec/controllers/admin/users_controller_spec.rb
index cb24a6ef142..89a0eba66f7 100644
--- a/spec/controllers/admin/users_controller_spec.rb
+++ b/spec/controllers/admin/users_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Admin::UsersController do
diff --git a/spec/controllers/application_controller_spec.rb b/spec/controllers/application_controller_spec.rb
index dca74bd5f84..a5ecb475ce3 100644
--- a/spec/controllers/application_controller_spec.rb
+++ b/spec/controllers/application_controller_spec.rb
@@ -1,4 +1,5 @@
 # coding: utf-8
+# frozen_string_literal: true
 require 'spec_helper'
 
 describe ApplicationController do
diff --git a/spec/controllers/autocomplete_controller_spec.rb b/spec/controllers/autocomplete_controller_spec.rb
index d8b75c5151e..3f1c0ae8ac4 100644
--- a/spec/controllers/autocomplete_controller_spec.rb
+++ b/spec/controllers/autocomplete_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe AutocompleteController do
diff --git a/spec/controllers/boards/issues_controller_spec.rb b/spec/controllers/boards/issues_controller_spec.rb
index 309cac47928..c84bb913cad 100644
--- a/spec/controllers/boards/issues_controller_spec.rb
+++ b/spec/controllers/boards/issues_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Boards::IssuesController do
diff --git a/spec/controllers/boards/lists_controller_spec.rb b/spec/controllers/boards/lists_controller_spec.rb
index e5b8aa2e678..e1f75fa3395 100644
--- a/spec/controllers/boards/lists_controller_spec.rb
+++ b/spec/controllers/boards/lists_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Boards::ListsController do
diff --git a/spec/controllers/concerns/checks_collaboration_spec.rb b/spec/controllers/concerns/checks_collaboration_spec.rb
index d7f110e11f3..7187e239486 100644
--- a/spec/controllers/concerns/checks_collaboration_spec.rb
+++ b/spec/controllers/concerns/checks_collaboration_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe ChecksCollaboration do
diff --git a/spec/controllers/concerns/continue_params_spec.rb b/spec/controllers/concerns/continue_params_spec.rb
index e2f683ae393..5e47f5e9f28 100644
--- a/spec/controllers/concerns/continue_params_spec.rb
+++ b/spec/controllers/concerns/continue_params_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe ContinueParams do
diff --git a/spec/controllers/concerns/controller_with_cross_project_access_check_spec.rb b/spec/controllers/concerns/controller_with_cross_project_access_check_spec.rb
index 9b2d054f4fc..7a56f7203b0 100644
--- a/spec/controllers/concerns/controller_with_cross_project_access_check_spec.rb
+++ b/spec/controllers/concerns/controller_with_cross_project_access_check_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe ControllerWithCrossProjectAccessCheck do
diff --git a/spec/controllers/concerns/group_tree_spec.rb b/spec/controllers/concerns/group_tree_spec.rb
index 9fe17210d50..aa3cd690e3f 100644
--- a/spec/controllers/concerns/group_tree_spec.rb
+++ b/spec/controllers/concerns/group_tree_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe GroupTree do
diff --git a/spec/controllers/concerns/internal_redirect_spec.rb b/spec/controllers/concerns/internal_redirect_spec.rb
index 7e23b56356e..97119438ca1 100644
--- a/spec/controllers/concerns/internal_redirect_spec.rb
+++ b/spec/controllers/concerns/internal_redirect_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe InternalRedirect do
diff --git a/spec/controllers/concerns/issuable_collections_spec.rb b/spec/controllers/concerns/issuable_collections_spec.rb
index a82b66361ca..f9d15d04719 100644
--- a/spec/controllers/concerns/issuable_collections_spec.rb
+++ b/spec/controllers/concerns/issuable_collections_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe IssuableCollections do
diff --git a/spec/controllers/concerns/lfs_request_spec.rb b/spec/controllers/concerns/lfs_request_spec.rb
index 7b49d4b6a3a..cb8c0b8f71c 100644
--- a/spec/controllers/concerns/lfs_request_spec.rb
+++ b/spec/controllers/concerns/lfs_request_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe LfsRequest do
diff --git a/spec/controllers/concerns/project_unauthorized_spec.rb b/spec/controllers/concerns/project_unauthorized_spec.rb
index 90b59b027cf..57ac00cf4dd 100644
--- a/spec/controllers/concerns/project_unauthorized_spec.rb
+++ b/spec/controllers/concerns/project_unauthorized_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe ProjectUnauthorized do
diff --git a/spec/controllers/concerns/send_file_upload_spec.rb b/spec/controllers/concerns/send_file_upload_spec.rb
index aa71a247956..8408578a7db 100644
--- a/spec/controllers/concerns/send_file_upload_spec.rb
+++ b/spec/controllers/concerns/send_file_upload_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe SendFileUpload do
diff --git a/spec/controllers/dashboard/groups_controller_spec.rb b/spec/controllers/dashboard/groups_controller_spec.rb
index 775b3ca40b2..48373d29412 100644
--- a/spec/controllers/dashboard/groups_controller_spec.rb
+++ b/spec/controllers/dashboard/groups_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Dashboard::GroupsController do
diff --git a/spec/controllers/dashboard/labels_controller_spec.rb b/spec/controllers/dashboard/labels_controller_spec.rb
index 01de896f9f4..cb9c3660b9b 100644
--- a/spec/controllers/dashboard/labels_controller_spec.rb
+++ b/spec/controllers/dashboard/labels_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Dashboard::LabelsController do
diff --git a/spec/controllers/dashboard/milestones_controller_spec.rb b/spec/controllers/dashboard/milestones_controller_spec.rb
index 1614739db05..4de537ae6f8 100644
--- a/spec/controllers/dashboard/milestones_controller_spec.rb
+++ b/spec/controllers/dashboard/milestones_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Dashboard::MilestonesController do
diff --git a/spec/controllers/dashboard/projects_controller_spec.rb b/spec/controllers/dashboard/projects_controller_spec.rb
index c17cb49e460..ea68eae12ed 100644
--- a/spec/controllers/dashboard/projects_controller_spec.rb
+++ b/spec/controllers/dashboard/projects_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Dashboard::ProjectsController do
diff --git a/spec/controllers/dashboard/todos_controller_spec.rb b/spec/controllers/dashboard/todos_controller_spec.rb
index abbf0b52306..6243ddc03c0 100644
--- a/spec/controllers/dashboard/todos_controller_spec.rb
+++ b/spec/controllers/dashboard/todos_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Dashboard::TodosController do
diff --git a/spec/controllers/dashboard_controller_spec.rb b/spec/controllers/dashboard_controller_spec.rb
index b039ec2906c..a733c3ecaa1 100644
--- a/spec/controllers/dashboard_controller_spec.rb
+++ b/spec/controllers/dashboard_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe DashboardController do
diff --git a/spec/controllers/explore/groups_controller_spec.rb b/spec/controllers/explore/groups_controller_spec.rb
index 9e0ad9ea86f..5a32d8ca0d3 100644
--- a/spec/controllers/explore/groups_controller_spec.rb
+++ b/spec/controllers/explore/groups_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Explore::GroupsController do
diff --git a/spec/controllers/explore/projects_controller_spec.rb b/spec/controllers/explore/projects_controller_spec.rb
index 7e20ddca249..463586ee422 100644
--- a/spec/controllers/explore/projects_controller_spec.rb
+++ b/spec/controllers/explore/projects_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Explore::ProjectsController do
diff --git a/spec/controllers/google_api/authorizations_controller_spec.rb b/spec/controllers/google_api/authorizations_controller_spec.rb
index d9ba85cf56a..940bf9c6828 100644
--- a/spec/controllers/google_api/authorizations_controller_spec.rb
+++ b/spec/controllers/google_api/authorizations_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe GoogleApi::AuthorizationsController do
diff --git a/spec/controllers/groups/avatars_controller_spec.rb b/spec/controllers/groups/avatars_controller_spec.rb
index 6ececa6f372..7fffafaa2d4 100644
--- a/spec/controllers/groups/avatars_controller_spec.rb
+++ b/spec/controllers/groups/avatars_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Groups::AvatarsController do
diff --git a/spec/controllers/groups/boards_controller_spec.rb b/spec/controllers/groups/boards_controller_spec.rb
index 0ca5ce51750..881d0018b79 100644
--- a/spec/controllers/groups/boards_controller_spec.rb
+++ b/spec/controllers/groups/boards_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Groups::BoardsController do
diff --git a/spec/controllers/groups/children_controller_spec.rb b/spec/controllers/groups/children_controller_spec.rb
index 4085c8f95a9..02fb971bd9a 100644
--- a/spec/controllers/groups/children_controller_spec.rb
+++ b/spec/controllers/groups/children_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Groups::ChildrenController do
diff --git a/spec/controllers/groups/group_members_controller_spec.rb b/spec/controllers/groups/group_members_controller_spec.rb
index 96a58d6d87c..413598ddde0 100644
--- a/spec/controllers/groups/group_members_controller_spec.rb
+++ b/spec/controllers/groups/group_members_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Groups::GroupMembersController do
diff --git a/spec/controllers/groups/labels_controller_spec.rb b/spec/controllers/groups/labels_controller_spec.rb
index 9af47114838..3cc6fc6f066 100644
--- a/spec/controllers/groups/labels_controller_spec.rb
+++ b/spec/controllers/groups/labels_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Groups::LabelsController do
diff --git a/spec/controllers/groups/milestones_controller_spec.rb b/spec/controllers/groups/milestones_controller_spec.rb
index d70946cbc8f..19b18091aef 100644
--- a/spec/controllers/groups/milestones_controller_spec.rb
+++ b/spec/controllers/groups/milestones_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Groups::MilestonesController do
diff --git a/spec/controllers/groups/runners_controller_spec.rb b/spec/controllers/groups/runners_controller_spec.rb
index 469459bfc02..91f9e2c7832 100644
--- a/spec/controllers/groups/runners_controller_spec.rb
+++ b/spec/controllers/groups/runners_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Groups::RunnersController do
diff --git a/spec/controllers/groups/settings/ci_cd_controller_spec.rb b/spec/controllers/groups/settings/ci_cd_controller_spec.rb
index b998f64ef72..70b3a5fb496 100644
--- a/spec/controllers/groups/settings/ci_cd_controller_spec.rb
+++ b/spec/controllers/groups/settings/ci_cd_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Groups::Settings::CiCdController do
diff --git a/spec/controllers/groups/shared_projects_controller_spec.rb b/spec/controllers/groups/shared_projects_controller_spec.rb
index b0c20fb5a90..9f6c558c931 100644
--- a/spec/controllers/groups/shared_projects_controller_spec.rb
+++ b/spec/controllers/groups/shared_projects_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Groups::SharedProjectsController do
diff --git a/spec/controllers/groups/uploads_controller_spec.rb b/spec/controllers/groups/uploads_controller_spec.rb
index 0104ba827da..0f99a957581 100644
--- a/spec/controllers/groups/uploads_controller_spec.rb
+++ b/spec/controllers/groups/uploads_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Groups::UploadsController do
diff --git a/spec/controllers/groups/variables_controller_spec.rb b/spec/controllers/groups/variables_controller_spec.rb
index 40f05167350..2d9c5c9d799 100644
--- a/spec/controllers/groups/variables_controller_spec.rb
+++ b/spec/controllers/groups/variables_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Groups::VariablesController do
diff --git a/spec/controllers/groups_controller_spec.rb b/spec/controllers/groups_controller_spec.rb
index 431627cf85a..1cd08200552 100644
--- a/spec/controllers/groups_controller_spec.rb
+++ b/spec/controllers/groups_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe GroupsController do
diff --git a/spec/controllers/health_check_controller_spec.rb b/spec/controllers/health_check_controller_spec.rb
index 29e159ad5d7..19d739fcf4f 100644
--- a/spec/controllers/health_check_controller_spec.rb
+++ b/spec/controllers/health_check_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe HealthCheckController do
diff --git a/spec/controllers/health_controller_spec.rb b/spec/controllers/health_controller_spec.rb
index f685f2b41c0..fc62a8310aa 100644
--- a/spec/controllers/health_controller_spec.rb
+++ b/spec/controllers/health_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe HealthController do
diff --git a/spec/controllers/help_controller_spec.rb b/spec/controllers/help_controller_spec.rb
index dca67c18caa..dbfacf4e42e 100644
--- a/spec/controllers/help_controller_spec.rb
+++ b/spec/controllers/help_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe HelpController do
diff --git a/spec/controllers/import/bitbucket_controller_spec.rb b/spec/controllers/import/bitbucket_controller_spec.rb
index 0bc09c86939..64a66502732 100644
--- a/spec/controllers/import/bitbucket_controller_spec.rb
+++ b/spec/controllers/import/bitbucket_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Import::BitbucketController do
diff --git a/spec/controllers/import/bitbucket_server_controller_spec.rb b/spec/controllers/import/bitbucket_server_controller_spec.rb
index a125e6ed16d..b89d7317b9c 100644
--- a/spec/controllers/import/bitbucket_server_controller_spec.rb
+++ b/spec/controllers/import/bitbucket_server_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Import::BitbucketServerController do
diff --git a/spec/controllers/import/fogbugz_controller_spec.rb b/spec/controllers/import/fogbugz_controller_spec.rb
index 5f0f6dea821..f1e0923f316 100644
--- a/spec/controllers/import/fogbugz_controller_spec.rb
+++ b/spec/controllers/import/fogbugz_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Import::FogbugzController do
diff --git a/spec/controllers/import/gitea_controller_spec.rb b/spec/controllers/import/gitea_controller_spec.rb
index 8cbec79095f..b7bdfcc3dc6 100644
--- a/spec/controllers/import/gitea_controller_spec.rb
+++ b/spec/controllers/import/gitea_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Import::GiteaController do
diff --git a/spec/controllers/import/github_controller_spec.rb b/spec/controllers/import/github_controller_spec.rb
index 162dff98ec5..059354870b5 100644
--- a/spec/controllers/import/github_controller_spec.rb
+++ b/spec/controllers/import/github_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Import::GithubController do
diff --git a/spec/controllers/import/gitlab_controller_spec.rb b/spec/controllers/import/gitlab_controller_spec.rb
index a874a7d36f6..5af7572e74e 100644
--- a/spec/controllers/import/gitlab_controller_spec.rb
+++ b/spec/controllers/import/gitlab_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Import::GitlabController do
diff --git a/spec/controllers/import/gitlab_projects_controller_spec.rb b/spec/controllers/import/gitlab_projects_controller_spec.rb
index 55bd8ae7182..51b398895bc 100644
--- a/spec/controllers/import/gitlab_projects_controller_spec.rb
+++ b/spec/controllers/import/gitlab_projects_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Import::GitlabProjectsController do
diff --git a/spec/controllers/import/google_code_controller_spec.rb b/spec/controllers/import/google_code_controller_spec.rb
index 3e5ed2afd93..17be91c0bbb 100644
--- a/spec/controllers/import/google_code_controller_spec.rb
+++ b/spec/controllers/import/google_code_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Import::GoogleCodeController do
diff --git a/spec/controllers/invites_controller_spec.rb b/spec/controllers/invites_controller_spec.rb
index 7bbaf36e4df..ac0adcd06a3 100644
--- a/spec/controllers/invites_controller_spec.rb
+++ b/spec/controllers/invites_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe InvitesController do
diff --git a/spec/controllers/ldap/omniauth_callbacks_controller_spec.rb b/spec/controllers/ldap/omniauth_callbacks_controller_spec.rb
index c9d36a16008..6d588c8f915 100644
--- a/spec/controllers/ldap/omniauth_callbacks_controller_spec.rb
+++ b/spec/controllers/ldap/omniauth_callbacks_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Ldap::OmniauthCallbacksController do
@@ -43,7 +45,7 @@ describe Ldap::OmniauthCallbacksController do
   end
 
   context 'sign up' do
-    let(:user) { double(email: 'new@example.com') }
+    let(:user) { double(email: +'new@example.com') }
 
     before do
       stub_omniauth_setting(block_auto_created_users: false)
diff --git a/spec/controllers/metrics_controller_spec.rb b/spec/controllers/metrics_controller_spec.rb
index c7c83369d7c..ee454a7818c 100644
--- a/spec/controllers/metrics_controller_spec.rb
+++ b/spec/controllers/metrics_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe MetricsController do
diff --git a/spec/controllers/notification_settings_controller_spec.rb b/spec/controllers/notification_settings_controller_spec.rb
index cf52ce834b6..46328148eff 100644
--- a/spec/controllers/notification_settings_controller_spec.rb
+++ b/spec/controllers/notification_settings_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe NotificationSettingsController do
diff --git a/spec/controllers/oauth/applications_controller_spec.rb b/spec/controllers/oauth/applications_controller_spec.rb
index caf2b87428b..228c97d591d 100644
--- a/spec/controllers/oauth/applications_controller_spec.rb
+++ b/spec/controllers/oauth/applications_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Oauth::ApplicationsController do
diff --git a/spec/controllers/oauth/authorizations_controller_spec.rb b/spec/controllers/oauth/authorizations_controller_spec.rb
index cc8fa2c01b4..41f7684051e 100644
--- a/spec/controllers/oauth/authorizations_controller_spec.rb
+++ b/spec/controllers/oauth/authorizations_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Oauth::AuthorizationsController do
diff --git a/spec/controllers/omniauth_callbacks_controller_spec.rb b/spec/controllers/omniauth_callbacks_controller_spec.rb
index b823a8d7463..0af0eb4f942 100644
--- a/spec/controllers/omniauth_callbacks_controller_spec.rb
+++ b/spec/controllers/omniauth_callbacks_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe OmniauthCallbacksController, type: :controller do
@@ -7,7 +9,7 @@ describe OmniauthCallbacksController, type: :controller do
     let(:user) { create(:omniauth_user, extern_uid: extern_uid, provider: provider) }
 
     before do
-      mock_auth_hash(provider.to_s, extern_uid, user.email)
+      mock_auth_hash(provider.to_s, +extern_uid, user.email)
       stub_omniauth_provider(provider, context: request)
     end
 
@@ -141,7 +143,7 @@ describe OmniauthCallbacksController, type: :controller do
         end
 
         shared_context 'sign_up' do
-          let(:user) { double(email: 'new@example.com') }
+          let(:user) { double(email: +'new@example.com') }
 
           before do
             stub_omniauth_setting(block_auto_created_users: false)
@@ -220,7 +222,7 @@ describe OmniauthCallbacksController, type: :controller do
     before do
       stub_omniauth_saml_config({ enabled: true, auto_link_saml_user: true, allow_single_sign_on: ['saml'],
                                   providers: [saml_config] })
-      mock_auth_hash_with_saml_xml('saml', 'my-uid', user.email, mock_saml_response)
+      mock_auth_hash_with_saml_xml('saml', +'my-uid', user.email, mock_saml_response)
       request.env["devise.mapping"] = Devise.mappings[:user]
       request.env['omniauth.auth'] = Rails.application.env_config['omniauth.auth']
       post :saml, params: { SAMLResponse: mock_saml_response }
diff --git a/spec/controllers/passwords_controller_spec.rb b/spec/controllers/passwords_controller_spec.rb
index 0af55cf3408..f2db024804d 100644
--- a/spec/controllers/passwords_controller_spec.rb
+++ b/spec/controllers/passwords_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe PasswordsController do
diff --git a/spec/controllers/profiles/accounts_controller_spec.rb b/spec/controllers/profiles/accounts_controller_spec.rb
index bb2ab27e2dd..f481b5078f2 100644
--- a/spec/controllers/profiles/accounts_controller_spec.rb
+++ b/spec/controllers/profiles/accounts_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Profiles::AccountsController do
diff --git a/spec/controllers/profiles/avatars_controller_spec.rb b/spec/controllers/profiles/avatars_controller_spec.rb
index 1ee0bf44e92..1a64cb72265 100644
--- a/spec/controllers/profiles/avatars_controller_spec.rb
+++ b/spec/controllers/profiles/avatars_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Profiles::AvatarsController do
diff --git a/spec/controllers/profiles/emails_controller_spec.rb b/spec/controllers/profiles/emails_controller_spec.rb
index a8a1f96befe..7c6b1863202 100644
--- a/spec/controllers/profiles/emails_controller_spec.rb
+++ b/spec/controllers/profiles/emails_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Profiles::EmailsController do
diff --git a/spec/controllers/profiles/keys_controller_spec.rb b/spec/controllers/profiles/keys_controller_spec.rb
index 5e2cc82bd8c..753eb432c5e 100644
--- a/spec/controllers/profiles/keys_controller_spec.rb
+++ b/spec/controllers/profiles/keys_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Profiles::KeysController do
diff --git a/spec/controllers/profiles/notifications_controller_spec.rb b/spec/controllers/profiles/notifications_controller_spec.rb
index 1b76446a0cf..f69847119d4 100644
--- a/spec/controllers/profiles/notifications_controller_spec.rb
+++ b/spec/controllers/profiles/notifications_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Profiles::NotificationsController do
diff --git a/spec/controllers/profiles/personal_access_tokens_controller_spec.rb b/spec/controllers/profiles/personal_access_tokens_controller_spec.rb
index 021bf2429e3..b467ecc4af9 100644
--- a/spec/controllers/profiles/personal_access_tokens_controller_spec.rb
+++ b/spec/controllers/profiles/personal_access_tokens_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Profiles::PersonalAccessTokensController do
diff --git a/spec/controllers/profiles/preferences_controller_spec.rb b/spec/controllers/profiles/preferences_controller_spec.rb
index ee881f85233..929d57ebaec 100644
--- a/spec/controllers/profiles/preferences_controller_spec.rb
+++ b/spec/controllers/profiles/preferences_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Profiles::PreferencesController do
diff --git a/spec/controllers/profiles/two_factor_auths_controller_spec.rb b/spec/controllers/profiles/two_factor_auths_controller_spec.rb
index 0151a434998..bcda8573468 100644
--- a/spec/controllers/profiles/two_factor_auths_controller_spec.rb
+++ b/spec/controllers/profiles/two_factor_auths_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Profiles::TwoFactorAuthsController do
diff --git a/spec/controllers/profiles_controller_spec.rb b/spec/controllers/profiles_controller_spec.rb
index 11cb59aa12a..08681c0341a 100644
--- a/spec/controllers/profiles_controller_spec.rb
+++ b/spec/controllers/profiles_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require('spec_helper')
 
 describe ProfilesController, :request_store do
diff --git a/spec/controllers/projects/artifacts_controller_spec.rb b/spec/controllers/projects/artifacts_controller_spec.rb
index 29df00e6bb0..6ea82785e98 100644
--- a/spec/controllers/projects/artifacts_controller_spec.rb
+++ b/spec/controllers/projects/artifacts_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Projects::ArtifactsController do
diff --git a/spec/controllers/projects/avatars_controller_spec.rb b/spec/controllers/projects/avatars_controller_spec.rb
index 95b7ae5885a..de1b9dc0bf3 100644
--- a/spec/controllers/projects/avatars_controller_spec.rb
+++ b/spec/controllers/projects/avatars_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Projects::AvatarsController do
diff --git a/spec/controllers/projects/badges_controller_spec.rb b/spec/controllers/projects/badges_controller_spec.rb
index 8eac3d9a459..5ec8d8d41d7 100644
--- a/spec/controllers/projects/badges_controller_spec.rb
+++ b/spec/controllers/projects/badges_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Projects::BadgesController do
diff --git a/spec/controllers/projects/blame_controller_spec.rb b/spec/controllers/projects/blame_controller_spec.rb
index eb110ea0002..f901fd45604 100644
--- a/spec/controllers/projects/blame_controller_spec.rb
+++ b/spec/controllers/projects/blame_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Projects::BlameController do
diff --git a/spec/controllers/projects/blob_controller_spec.rb b/spec/controllers/projects/blob_controller_spec.rb
index 485e3e21c4d..44500d3cde3 100644
--- a/spec/controllers/projects/blob_controller_spec.rb
+++ b/spec/controllers/projects/blob_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'rails_helper'
 
 describe Projects::BlobController do
diff --git a/spec/controllers/projects/boards_controller_spec.rb b/spec/controllers/projects/boards_controller_spec.rb
index b1203fd00b0..ae85000b4e0 100644
--- a/spec/controllers/projects/boards_controller_spec.rb
+++ b/spec/controllers/projects/boards_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Projects::BoardsController do
diff --git a/spec/controllers/projects/branches_controller_spec.rb b/spec/controllers/projects/branches_controller_spec.rb
index 52a20fa8d07..c778b7888dc 100644
--- a/spec/controllers/projects/branches_controller_spec.rb
+++ b/spec/controllers/projects/branches_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Projects::BranchesController do
diff --git a/spec/controllers/projects/ci/lints_controller_spec.rb b/spec/controllers/projects/ci/lints_controller_spec.rb
index 0b79484bbfa..323a32575af 100644
--- a/spec/controllers/projects/ci/lints_controller_spec.rb
+++ b/spec/controllers/projects/ci/lints_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Projects::Ci::LintsController do
diff --git a/spec/controllers/projects/commit_controller_spec.rb b/spec/controllers/projects/commit_controller_spec.rb
index 19cac47325c..b5c6382a26d 100644
--- a/spec/controllers/projects/commit_controller_spec.rb
+++ b/spec/controllers/projects/commit_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Projects::CommitController do
diff --git a/spec/controllers/projects/commits_controller_spec.rb b/spec/controllers/projects/commits_controller_spec.rb
index 9f753e5641f..9db1ac2a46c 100644
--- a/spec/controllers/projects/commits_controller_spec.rb
+++ b/spec/controllers/projects/commits_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Projects::CommitsController do
diff --git a/spec/controllers/projects/compare_controller_spec.rb b/spec/controllers/projects/compare_controller_spec.rb
index cfd70e93efb..1818809518d 100644
--- a/spec/controllers/projects/compare_controller_spec.rb
+++ b/spec/controllers/projects/compare_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Projects::CompareController do
diff --git a/spec/controllers/projects/cycle_analytics_controller_spec.rb b/spec/controllers/projects/cycle_analytics_controller_spec.rb
index 6a63cbdf8e2..2dc97e18113 100644
--- a/spec/controllers/projects/cycle_analytics_controller_spec.rb
+++ b/spec/controllers/projects/cycle_analytics_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Projects::CycleAnalyticsController do
diff --git a/spec/controllers/projects/deploy_keys_controller_spec.rb b/spec/controllers/projects/deploy_keys_controller_spec.rb
index e54cf3e8181..fcd14f13863 100644
--- a/spec/controllers/projects/deploy_keys_controller_spec.rb
+++ b/spec/controllers/projects/deploy_keys_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Projects::DeployKeysController do
diff --git a/spec/controllers/projects/deployments_controller_spec.rb b/spec/controllers/projects/deployments_controller_spec.rb
index 5c33098fd31..95417936df4 100644
--- a/spec/controllers/projects/deployments_controller_spec.rb
+++ b/spec/controllers/projects/deployments_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Projects::DeploymentsController do
diff --git a/spec/controllers/projects/discussions_controller_spec.rb b/spec/controllers/projects/discussions_controller_spec.rb
index 0b9f336cf13..4c29162cd0f 100644
--- a/spec/controllers/projects/discussions_controller_spec.rb
+++ b/spec/controllers/projects/discussions_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Projects::DiscussionsController do
diff --git a/spec/controllers/projects/environments_controller_spec.rb b/spec/controllers/projects/environments_controller_spec.rb
index 168c0168bba..75158f2e8e0 100644
--- a/spec/controllers/projects/environments_controller_spec.rb
+++ b/spec/controllers/projects/environments_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Projects::EnvironmentsController do
diff --git a/spec/controllers/projects/find_file_controller_spec.rb b/spec/controllers/projects/find_file_controller_spec.rb
index 9072d67af07..538dbb5ad0b 100644
--- a/spec/controllers/projects/find_file_controller_spec.rb
+++ b/spec/controllers/projects/find_file_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Projects::FindFileController do
diff --git a/spec/controllers/projects/forks_controller_spec.rb b/spec/controllers/projects/forks_controller_spec.rb
index 0e1663c8585..3423fdf4c41 100644
--- a/spec/controllers/projects/forks_controller_spec.rb
+++ b/spec/controllers/projects/forks_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Projects::ForksController do
diff --git a/spec/controllers/projects/graphs_controller_spec.rb b/spec/controllers/projects/graphs_controller_spec.rb
index df6a6e00f73..d390e84c9b0 100644
--- a/spec/controllers/projects/graphs_controller_spec.rb
+++ b/spec/controllers/projects/graphs_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Projects::GraphsController do
diff --git a/spec/controllers/projects/group_links_controller_spec.rb b/spec/controllers/projects/group_links_controller_spec.rb
index ce021b2f085..d0cb3a74b78 100644
--- a/spec/controllers/projects/group_links_controller_spec.rb
+++ b/spec/controllers/projects/group_links_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Projects::GroupLinksController do
diff --git a/spec/controllers/projects/hooks_controller_spec.rb b/spec/controllers/projects/hooks_controller_spec.rb
index 3037c922b68..137296b4f19 100644
--- a/spec/controllers/projects/hooks_controller_spec.rb
+++ b/spec/controllers/projects/hooks_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Projects::HooksController do
diff --git a/spec/controllers/projects/imports_controller_spec.rb b/spec/controllers/projects/imports_controller_spec.rb
index 3ebfe4b0918..8d88ee7dfd6 100644
--- a/spec/controllers/projects/imports_controller_spec.rb
+++ b/spec/controllers/projects/imports_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Projects::ImportsController do
diff --git a/spec/controllers/projects/issues_controller_spec.rb b/spec/controllers/projects/issues_controller_spec.rb
index bfa23af76d5..0c46b43f080 100644
--- a/spec/controllers/projects/issues_controller_spec.rb
+++ b/spec/controllers/projects/issues_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Projects::IssuesController do
diff --git a/spec/controllers/projects/jobs_controller_spec.rb b/spec/controllers/projects/jobs_controller_spec.rb
index 23e4e9806c2..bd30d4ee88b 100644
--- a/spec/controllers/projects/jobs_controller_spec.rb
+++ b/spec/controllers/projects/jobs_controller_spec.rb
@@ -1,4 +1,5 @@
 # coding: utf-8
+# frozen_string_literal: true
 require 'spec_helper'
 
 describe Projects::JobsController, :clean_gitlab_redis_shared_state do
diff --git a/spec/controllers/projects/labels_controller_spec.rb b/spec/controllers/projects/labels_controller_spec.rb
index 32897a0f1b4..ff089df37f7 100644
--- a/spec/controllers/projects/labels_controller_spec.rb
+++ b/spec/controllers/projects/labels_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Projects::LabelsController do
diff --git a/spec/controllers/projects/mattermosts_controller_spec.rb b/spec/controllers/projects/mattermosts_controller_spec.rb
index 6c8c7cd8f2b..45125385d9e 100644
--- a/spec/controllers/projects/mattermosts_controller_spec.rb
+++ b/spec/controllers/projects/mattermosts_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Projects::MattermostsController do
diff --git a/spec/controllers/projects/merge_requests/conflicts_controller_spec.rb b/spec/controllers/projects/merge_requests/conflicts_controller_spec.rb
index 039f35875d2..8e4ac64f7b0 100644
--- a/spec/controllers/projects/merge_requests/conflicts_controller_spec.rb
+++ b/spec/controllers/projects/merge_requests/conflicts_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Projects::MergeRequests::ConflictsController do
diff --git a/spec/controllers/projects/merge_requests/creations_controller_spec.rb b/spec/controllers/projects/merge_requests/creations_controller_spec.rb
index f031a74c5bd..5fefad86ef3 100644
--- a/spec/controllers/projects/merge_requests/creations_controller_spec.rb
+++ b/spec/controllers/projects/merge_requests/creations_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Projects::MergeRequests::CreationsController do
diff --git a/spec/controllers/projects/merge_requests/diffs_controller_spec.rb b/spec/controllers/projects/merge_requests/diffs_controller_spec.rb
index e85f32d6e30..13a28b738ca 100644
--- a/spec/controllers/projects/merge_requests/diffs_controller_spec.rb
+++ b/spec/controllers/projects/merge_requests/diffs_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Projects::MergeRequests::DiffsController do
diff --git a/spec/controllers/projects/merge_requests_controller_spec.rb b/spec/controllers/projects/merge_requests_controller_spec.rb
index a125e470522..f4a18dcba51 100644
--- a/spec/controllers/projects/merge_requests_controller_spec.rb
+++ b/spec/controllers/projects/merge_requests_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Projects::MergeRequestsController do
diff --git a/spec/controllers/projects/milestones_controller_spec.rb b/spec/controllers/projects/milestones_controller_spec.rb
index ac54b3c3952..f8470a94f98 100644
--- a/spec/controllers/projects/milestones_controller_spec.rb
+++ b/spec/controllers/projects/milestones_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Projects::MilestonesController do
diff --git a/spec/controllers/projects/mirrors_controller_spec.rb b/spec/controllers/projects/mirrors_controller_spec.rb
index 3ababe18055..51ce9e2544f 100644
--- a/spec/controllers/projects/mirrors_controller_spec.rb
+++ b/spec/controllers/projects/mirrors_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Projects::MirrorsController do
diff --git a/spec/controllers/projects/notes_controller_spec.rb b/spec/controllers/projects/notes_controller_spec.rb
index deecb7fefe9..6ec84f5c528 100644
--- a/spec/controllers/projects/notes_controller_spec.rb
+++ b/spec/controllers/projects/notes_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Projects::NotesController do
diff --git a/spec/controllers/projects/pages_controller_spec.rb b/spec/controllers/projects/pages_controller_spec.rb
index d6eece47804..f80bbf0d78f 100644
--- a/spec/controllers/projects/pages_controller_spec.rb
+++ b/spec/controllers/projects/pages_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Projects::PagesController do
diff --git a/spec/controllers/projects/pages_domains_controller_spec.rb b/spec/controllers/projects/pages_domains_controller_spec.rb
index ffb9867a203..ff3afd51cd8 100644
--- a/spec/controllers/projects/pages_domains_controller_spec.rb
+++ b/spec/controllers/projects/pages_domains_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Projects::PagesDomainsController do
diff --git a/spec/controllers/projects/pipeline_schedules_controller_spec.rb b/spec/controllers/projects/pipeline_schedules_controller_spec.rb
index fa732437fc1..eb8983a7633 100644
--- a/spec/controllers/projects/pipeline_schedules_controller_spec.rb
+++ b/spec/controllers/projects/pipeline_schedules_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Projects::PipelineSchedulesController do
diff --git a/spec/controllers/projects/pipelines_controller_spec.rb b/spec/controllers/projects/pipelines_controller_spec.rb
index 814100f7d5d..9a50ea79f5e 100644
--- a/spec/controllers/projects/pipelines_controller_spec.rb
+++ b/spec/controllers/projects/pipelines_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Projects::PipelinesController do
diff --git a/spec/controllers/projects/pipelines_settings_controller_spec.rb b/spec/controllers/projects/pipelines_settings_controller_spec.rb
index 269f105bed2..3656b4e3771 100644
--- a/spec/controllers/projects/pipelines_settings_controller_spec.rb
+++ b/spec/controllers/projects/pipelines_settings_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Projects::PipelinesSettingsController do
diff --git a/spec/controllers/projects/project_members_controller_spec.rb b/spec/controllers/projects/project_members_controller_spec.rb
index 33486edcdd1..4141e41c7a7 100644
--- a/spec/controllers/projects/project_members_controller_spec.rb
+++ b/spec/controllers/projects/project_members_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require('spec_helper')
 
 describe Projects::ProjectMembersController do
diff --git a/spec/controllers/projects/prometheus/metrics_controller_spec.rb b/spec/controllers/projects/prometheus/metrics_controller_spec.rb
index 635763ce1d3..17f9483be98 100644
--- a/spec/controllers/projects/prometheus/metrics_controller_spec.rb
+++ b/spec/controllers/projects/prometheus/metrics_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Projects::Prometheus::MetricsController do
diff --git a/spec/controllers/projects/protected_branches_controller_spec.rb b/spec/controllers/projects/protected_branches_controller_spec.rb
index 483d3bbc37c..0ebbb4b581f 100644
--- a/spec/controllers/projects/protected_branches_controller_spec.rb
+++ b/spec/controllers/projects/protected_branches_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require('spec_helper')
 
 describe Projects::ProtectedBranchesController do
diff --git a/spec/controllers/projects/protected_tags_controller_spec.rb b/spec/controllers/projects/protected_tags_controller_spec.rb
index 1553e081dee..a900947d82e 100644
--- a/spec/controllers/projects/protected_tags_controller_spec.rb
+++ b/spec/controllers/projects/protected_tags_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require('spec_helper')
 
 describe Projects::ProtectedTagsController do
diff --git a/spec/controllers/projects/raw_controller_spec.rb b/spec/controllers/projects/raw_controller_spec.rb
index cffdf30da6b..3a89d8ce032 100644
--- a/spec/controllers/projects/raw_controller_spec.rb
+++ b/spec/controllers/projects/raw_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Projects::RawController do
diff --git a/spec/controllers/projects/refs_controller_spec.rb b/spec/controllers/projects/refs_controller_spec.rb
index 0d0fa5d9f45..6db98f2428b 100644
--- a/spec/controllers/projects/refs_controller_spec.rb
+++ b/spec/controllers/projects/refs_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Projects::RefsController do
diff --git a/spec/controllers/projects/registry/repositories_controller_spec.rb b/spec/controllers/projects/registry/repositories_controller_spec.rb
index eca187af33d..63d84b366d3 100644
--- a/spec/controllers/projects/registry/repositories_controller_spec.rb
+++ b/spec/controllers/projects/registry/repositories_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Projects::Registry::RepositoriesController do
diff --git a/spec/controllers/projects/registry/tags_controller_spec.rb b/spec/controllers/projects/registry/tags_controller_spec.rb
index 74ed89ba1c3..ff35139ae2e 100644
--- a/spec/controllers/projects/registry/tags_controller_spec.rb
+++ b/spec/controllers/projects/registry/tags_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Projects::Registry::TagsController do
diff --git a/spec/controllers/projects/repositories_controller_spec.rb b/spec/controllers/projects/repositories_controller_spec.rb
index 5f4f6f8558f..8fca9e680dd 100644
--- a/spec/controllers/projects/repositories_controller_spec.rb
+++ b/spec/controllers/projects/repositories_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require "spec_helper"
 
 describe Projects::RepositoriesController do
diff --git a/spec/controllers/projects/runners_controller_spec.rb b/spec/controllers/projects/runners_controller_spec.rb
index 0baaa4e7192..279b4f360c5 100644
--- a/spec/controllers/projects/runners_controller_spec.rb
+++ b/spec/controllers/projects/runners_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Projects::RunnersController do
diff --git a/spec/controllers/projects/services_controller_spec.rb b/spec/controllers/projects/services_controller_spec.rb
index d00d5bf579d..3608d175d50 100644
--- a/spec/controllers/projects/services_controller_spec.rb
+++ b/spec/controllers/projects/services_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Projects::ServicesController do
diff --git a/spec/controllers/projects/settings/ci_cd_controller_spec.rb b/spec/controllers/projects/settings/ci_cd_controller_spec.rb
index 41cc0607cee..fc9a0adeed2 100644
--- a/spec/controllers/projects/settings/ci_cd_controller_spec.rb
+++ b/spec/controllers/projects/settings/ci_cd_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require('spec_helper')
 
 describe Projects::Settings::CiCdController do
diff --git a/spec/controllers/projects/settings/integrations_controller_spec.rb b/spec/controllers/projects/settings/integrations_controller_spec.rb
index 8624eb4d1a0..93e8d03098a 100644
--- a/spec/controllers/projects/settings/integrations_controller_spec.rb
+++ b/spec/controllers/projects/settings/integrations_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Projects::Settings::IntegrationsController do
diff --git a/spec/controllers/projects/settings/repository_controller_spec.rb b/spec/controllers/projects/settings/repository_controller_spec.rb
index 638cce60a25..b34053fc993 100644
--- a/spec/controllers/projects/settings/repository_controller_spec.rb
+++ b/spec/controllers/projects/settings/repository_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Projects::Settings::RepositoryController do
diff --git a/spec/controllers/projects/snippets_controller_spec.rb b/spec/controllers/projects/snippets_controller_spec.rb
index 8d9cb2c8ac0..9b5d7317c11 100644
--- a/spec/controllers/projects/snippets_controller_spec.rb
+++ b/spec/controllers/projects/snippets_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Projects::SnippetsController do
diff --git a/spec/controllers/projects/tags_controller_spec.rb b/spec/controllers/projects/tags_controller_spec.rb
index 379430bff3b..b99b5d611fc 100644
--- a/spec/controllers/projects/tags_controller_spec.rb
+++ b/spec/controllers/projects/tags_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Projects::TagsController do
diff --git a/spec/controllers/projects/templates_controller_spec.rb b/spec/controllers/projects/templates_controller_spec.rb
index 01e53669627..bebf17728c0 100644
--- a/spec/controllers/projects/templates_controller_spec.rb
+++ b/spec/controllers/projects/templates_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Projects::TemplatesController do
diff --git a/spec/controllers/projects/todos_controller_spec.rb b/spec/controllers/projects/todos_controller_spec.rb
index 987772f38aa..c12019fed5e 100644
--- a/spec/controllers/projects/todos_controller_spec.rb
+++ b/spec/controllers/projects/todos_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require('spec_helper')
 
 describe Projects::TodosController do
diff --git a/spec/controllers/projects/tree_controller_spec.rb b/spec/controllers/projects/tree_controller_spec.rb
index 78201498eaa..e1d8719d8d6 100644
--- a/spec/controllers/projects/tree_controller_spec.rb
+++ b/spec/controllers/projects/tree_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Projects::TreeController do
diff --git a/spec/controllers/projects/uploads_controller_spec.rb b/spec/controllers/projects/uploads_controller_spec.rb
index cfa67683dd3..776c1270977 100644
--- a/spec/controllers/projects/uploads_controller_spec.rb
+++ b/spec/controllers/projects/uploads_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Projects::UploadsController do
diff --git a/spec/controllers/projects/variables_controller_spec.rb b/spec/controllers/projects/variables_controller_spec.rb
index 8cceda72c28..a2a09e2580f 100644
--- a/spec/controllers/projects/variables_controller_spec.rb
+++ b/spec/controllers/projects/variables_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Projects::VariablesController do
diff --git a/spec/controllers/projects/wikis_controller_spec.rb b/spec/controllers/projects/wikis_controller_spec.rb
index b2f40231796..e0a6fc52ee9 100644
--- a/spec/controllers/projects/wikis_controller_spec.rb
+++ b/spec/controllers/projects/wikis_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Projects::WikisController do
diff --git a/spec/controllers/projects_controller_spec.rb b/spec/controllers/projects_controller_spec.rb
index 1ce06bc877c..7f1bbebd128 100644
--- a/spec/controllers/projects_controller_spec.rb
+++ b/spec/controllers/projects_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require('spec_helper')
 
 describe ProjectsController do
diff --git a/spec/controllers/registrations_controller_spec.rb b/spec/controllers/registrations_controller_spec.rb
index c1baf88778d..088c515c3a6 100644
--- a/spec/controllers/registrations_controller_spec.rb
+++ b/spec/controllers/registrations_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe RegistrationsController do
diff --git a/spec/controllers/root_controller_spec.rb b/spec/controllers/root_controller_spec.rb
index 995f803d757..4892ff43086 100644
--- a/spec/controllers/root_controller_spec.rb
+++ b/spec/controllers/root_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe RootController do
diff --git a/spec/controllers/search_controller_spec.rb b/spec/controllers/search_controller_spec.rb
index 752d6ae55cc..9c60f0fcd4d 100644
--- a/spec/controllers/search_controller_spec.rb
+++ b/spec/controllers/search_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe SearchController do
diff --git a/spec/controllers/sent_notifications_controller_spec.rb b/spec/controllers/sent_notifications_controller_spec.rb
index 75c91dd8607..2b9df71aa3a 100644
--- a/spec/controllers/sent_notifications_controller_spec.rb
+++ b/spec/controllers/sent_notifications_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'rails_helper'
 
 describe SentNotificationsController do
diff --git a/spec/controllers/sessions_controller_spec.rb b/spec/controllers/sessions_controller_spec.rb
index ea7242c1aa8..6bcff7f975c 100644
--- a/spec/controllers/sessions_controller_spec.rb
+++ b/spec/controllers/sessions_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe SessionsController do
diff --git a/spec/controllers/snippets/notes_controller_spec.rb b/spec/controllers/snippets/notes_controller_spec.rb
index 6efbd1f6c71..936d7c7dae4 100644
--- a/spec/controllers/snippets/notes_controller_spec.rb
+++ b/spec/controllers/snippets/notes_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Snippets::NotesController do
diff --git a/spec/controllers/snippets_controller_spec.rb b/spec/controllers/snippets_controller_spec.rb
index 77a94f26d8c..f8666a1986f 100644
--- a/spec/controllers/snippets_controller_spec.rb
+++ b/spec/controllers/snippets_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe SnippetsController do
diff --git a/spec/controllers/uploads_controller_spec.rb b/spec/controllers/uploads_controller_spec.rb
index e52a5fe42f2..d27658e02cb 100644
--- a/spec/controllers/uploads_controller_spec.rb
+++ b/spec/controllers/uploads_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 shared_examples 'content not cached without revalidation' do
   it 'ensures content will not be cached without revalidation' do
diff --git a/spec/controllers/user_callouts_controller_spec.rb b/spec/controllers/user_callouts_controller_spec.rb
index 3cbbba934b8..babc93a83e5 100644
--- a/spec/controllers/user_callouts_controller_spec.rb
+++ b/spec/controllers/user_callouts_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe UserCalloutsController do
diff --git a/spec/controllers/users/terms_controller_spec.rb b/spec/controllers/users/terms_controller_spec.rb
index cbfd2b17864..e0bdec3df1d 100644
--- a/spec/controllers/users/terms_controller_spec.rb
+++ b/spec/controllers/users/terms_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Users::TermsController do
diff --git a/spec/controllers/users_controller_spec.rb b/spec/controllers/users_controller_spec.rb
index 42d28c53d34..c3d6ea9cbcd 100644
--- a/spec/controllers/users_controller_spec.rb
+++ b/spec/controllers/users_controller_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe UsersController do