Add latest changes from gitlab-org/gitlab@master

82 files changed, 413 insertions, 135 deletions

diff --git a/.rubocop_todo.yml b/.rubocop_todo.yml
index f0388ab79d2..2a3f16683cf 100644
--- a/.rubocop_todo.yml
+++ b/.rubocop_todo.yml
@@ -268,11 +268,6 @@ Naming/RescuedExceptionsVariableName:
 RSpec/ContextWording:
   Enabled: false
 
-# Offense count: 407
-# Cop supports --auto-correct.
-RSpec/EmptyLineAfterFinalLet:
-  Enabled: false
-
 # Offense count: 719
 # Cop supports --auto-correct.
 # Configuration parameters: EnforcedStyle.
diff --git a/app/assets/javascripts/ide/stores/actions.js b/app/assets/javascripts/ide/stores/actions.js
index dd69e2d6f1f..7a386299eed 100644
--- a/app/assets/javascripts/ide/stores/actions.js
+++ b/app/assets/javascripts/ide/stores/actions.js
@@ -110,6 +110,7 @@ export const createTempEntry = (
       commit(types.ADD_FILE_TO_CHANGED, file.path);
       dispatch('setFileActive', file.path);
       dispatch('triggerFilesChange');
+      dispatch('burstUnusedSeal');
     }
 
     if (parentPath && !state.entries[parentPath].opened) {
@@ -222,7 +223,9 @@ export const deleteEntry = ({ commit, dispatch, state }, path) => {
     dispatch('deleteEntry', prevPath);
     return;
   }
-  if (state.unusedSeal) dispatch('burstUnusedSeal');
+
+  dispatch('burstUnusedSeal');
+
   if (entry.opened) dispatch('closeFile', entry);
 
   if (isTree) {
@@ -267,6 +270,7 @@ export const renameEntry = ({ dispatch, commit, state }, { path, name, parentPat
       commit(types.REMOVE_FILE_FROM_STAGED_AND_CHANGED, newEntry);
     } else if (!isInChanges) {
       commit(types.ADD_FILE_TO_CHANGED, newPath);
+      dispatch('burstUnusedSeal');
     }
 
     if (!newEntry.tempFile) {
diff --git a/changelogs/unreleased/43517-no-changes.yml b/changelogs/unreleased/43517-no-changes.yml
new file mode 100644
index 00000000000..e36e0688251
--- /dev/null
+++ b/changelogs/unreleased/43517-no-changes.yml
@@ -0,0 +1,6 @@
+---
+title: Fix "No changes" empty state showing up in changes tab, despite there being
+  changes
+merge_request: 21713
+author:
+type: fixed
diff --git a/db/migrate/20180305144721_add_privileged_to_runner.rb b/db/migrate/20180305144721_add_privileged_to_runner.rb
index 359498bf9b0..1ad3c045d60 100644
--- a/db/migrate/20180305144721_add_privileged_to_runner.rb
+++ b/db/migrate/20180305144721_add_privileged_to_runner.rb
@@ -9,7 +9,7 @@ class AddPrivilegedToRunner < ActiveRecord::Migration[4.2]
   disable_ddl_transaction!
 
   def up
-    add_column_with_default :clusters_applications_runners, :privileged, :boolean, default: true, allow_null: false
+    add_column_with_default :clusters_applications_runners, :privileged, :boolean, default: true, allow_null: false # rubocop:disable Migration/AddColumnWithDefault
   end
 
   def down
diff --git a/db/migrate/20180423204600_add_pages_access_level_to_project_feature.rb b/db/migrate/20180423204600_add_pages_access_level_to_project_feature.rb
index 0c536f917ce..c841c7eb77b 100644
--- a/db/migrate/20180423204600_add_pages_access_level_to_project_feature.rb
+++ b/db/migrate/20180423204600_add_pages_access_level_to_project_feature.rb
@@ -5,7 +5,7 @@ class AddPagesAccessLevelToProjectFeature < ActiveRecord::Migration[4.2]
   DOWNTIME = false
 
   def up
-    add_column_with_default(:project_features, :pages_access_level, :integer, default: ProjectFeature::PUBLIC, allow_null: false)
+    add_column_with_default(:project_features, :pages_access_level, :integer, default: ProjectFeature::PUBLIC, allow_null: false) # rubocop:disable Migration/AddColumnWithDefault
 
     change_column_default(:project_features, :pages_access_level, ProjectFeature::ENABLED)
   end
diff --git a/db/migrate/20180515005612_add_squash_to_merge_requests.rb b/db/migrate/20180515005612_add_squash_to_merge_requests.rb
index 14636d6fd8e..dd301d22614 100644
--- a/db/migrate/20180515005612_add_squash_to_merge_requests.rb
+++ b/db/migrate/20180515005612_add_squash_to_merge_requests.rb
@@ -10,7 +10,7 @@ class AddSquashToMergeRequests < ActiveRecord::Migration[4.2]
   def up
     unless column_exists?(:merge_requests, :squash)
       # rubocop:disable Migration/UpdateLargeTable
-      add_column_with_default :merge_requests, :squash, :boolean, default: false, allow_null: false
+      add_column_with_default :merge_requests, :squash, :boolean, default: false, allow_null: false # rubocop:disable Migration/AddColumnWithDefault
     end
   end
 
diff --git a/db/migrate/20180529093006_ensure_remote_mirror_columns.rb b/db/migrate/20180529093006_ensure_remote_mirror_columns.rb
index a0a1150f022..3c61729dca8 100644
--- a/db/migrate/20180529093006_ensure_remote_mirror_columns.rb
+++ b/db/migrate/20180529093006_ensure_remote_mirror_columns.rb
@@ -11,7 +11,7 @@ class EnsureRemoteMirrorColumns < ActiveRecord::Migration[4.2]
     add_column :remote_mirrors, :remote_name, :string unless column_exists?(:remote_mirrors, :remote_name) # rubocop:disable Migration/AddLimitToStringColumns
 
     unless column_exists?(:remote_mirrors, :only_protected_branches)
-      add_column_with_default(:remote_mirrors,
+      add_column_with_default(:remote_mirrors, # rubocop:disable Migration/AddColumnWithDefault
                               :only_protected_branches,
                               :boolean,
                               default: false,
diff --git a/db/migrate/20180601213245_add_deploy_strategy_to_project_auto_devops.rb b/db/migrate/20180601213245_add_deploy_strategy_to_project_auto_devops.rb
index 78a3617ec93..67d20b949d9 100644
--- a/db/migrate/20180601213245_add_deploy_strategy_to_project_auto_devops.rb
+++ b/db/migrate/20180601213245_add_deploy_strategy_to_project_auto_devops.rb
@@ -10,7 +10,7 @@ class AddDeployStrategyToProjectAutoDevops < ActiveRecord::Migration[4.2]
   disable_ddl_transaction!
 
   def up
-    add_column_with_default :project_auto_devops, :deploy_strategy, :integer, default: 0, allow_null: false
+    add_column_with_default :project_auto_devops, :deploy_strategy, :integer, default: 0, allow_null: false # rubocop:disable Migration/AddColumnWithDefault
   end
 
   def down
diff --git a/db/migrate/20181016141739_add_status_to_deployments.rb b/db/migrate/20181016141739_add_status_to_deployments.rb
index 2ff778448b4..7aaf029b69c 100644
--- a/db/migrate/20181016141739_add_status_to_deployments.rb
+++ b/db/migrate/20181016141739_add_status_to_deployments.rb
@@ -15,7 +15,7 @@ class AddStatusToDeployments < ActiveRecord::Migration[4.2]
   # However, we have to use the default value for avoiding `NOT NULL` violation during the transition period.
   # The default value should be removed in the future release.
   def up
-    add_column_with_default(:deployments,
+    add_column_with_default(:deployments, # rubocop:disable Migration/AddColumnWithDefault
       :status,
       :integer,
       limit: 2,
diff --git a/db/migrate/20190218134158_add_masked_to_ci_variables.rb b/db/migrate/20190218134158_add_masked_to_ci_variables.rb
index b4999d5b4a9..60dcc0d7af5 100644
--- a/db/migrate/20190218134158_add_masked_to_ci_variables.rb
+++ b/db/migrate/20190218134158_add_masked_to_ci_variables.rb
@@ -12,7 +12,7 @@ class AddMaskedToCiVariables < ActiveRecord::Migration[5.0]
   disable_ddl_transaction!
 
   def up
-    add_column_with_default :ci_variables, :masked, :boolean, default: false, allow_null: false
+    add_column_with_default :ci_variables, :masked, :boolean, default: false, allow_null: false # rubocop:disable Migration/AddColumnWithDefault
   end
 
   def down
diff --git a/db/migrate/20190218134209_add_masked_to_ci_group_variables.rb b/db/migrate/20190218134209_add_masked_to_ci_group_variables.rb
index 8633875b341..c25881410d0 100644
--- a/db/migrate/20190218134209_add_masked_to_ci_group_variables.rb
+++ b/db/migrate/20190218134209_add_masked_to_ci_group_variables.rb
@@ -12,7 +12,7 @@ class AddMaskedToCiGroupVariables < ActiveRecord::Migration[5.0]
   disable_ddl_transaction!
 
   def up
-    add_column_with_default :ci_group_variables, :masked, :boolean, default: false, allow_null: false
+    add_column_with_default :ci_group_variables, :masked, :boolean, default: false, allow_null: false # rubocop:disable Migration/AddColumnWithDefault
   end
 
   def down
diff --git a/db/migrate/20190228192410_add_multi_line_attributes_to_suggestion.rb b/db/migrate/20190228192410_add_multi_line_attributes_to_suggestion.rb
index 856dfc89fa3..766ea50161d 100644
--- a/db/migrate/20190228192410_add_multi_line_attributes_to_suggestion.rb
+++ b/db/migrate/20190228192410_add_multi_line_attributes_to_suggestion.rb
@@ -8,9 +8,11 @@ class AddMultiLineAttributesToSuggestion < ActiveRecord::Migration[5.0]
   disable_ddl_transaction!
 
   def up
+    # rubocop:disable Migration/AddColumnWithDefault
     add_column_with_default :suggestions, :lines_above, :integer, default: 0, allow_null: false
     add_column_with_default :suggestions, :lines_below, :integer, default: 0, allow_null: false
     add_column_with_default :suggestions, :outdated, :boolean, default: false, allow_null: false
+    # rubocop:enable Migration/AddColumnWithDefault
   end
 
   def down
diff --git a/db/migrate/20190416185130_add_merge_train_enabled_to_ci_cd_settings.rb b/db/migrate/20190416185130_add_merge_train_enabled_to_ci_cd_settings.rb
index eb0e7c41f98..e6427534310 100644
--- a/db/migrate/20190416185130_add_merge_train_enabled_to_ci_cd_settings.rb
+++ b/db/migrate/20190416185130_add_merge_train_enabled_to_ci_cd_settings.rb
@@ -8,7 +8,7 @@ class AddMergeTrainEnabledToCiCdSettings < ActiveRecord::Migration[5.1]
   disable_ddl_transaction!
 
   def up
-    add_column_with_default :project_ci_cd_settings, :merge_trains_enabled, :boolean, default: false, allow_null: false
+    add_column_with_default :project_ci_cd_settings, :merge_trains_enabled, :boolean, default: false, allow_null: false # rubocop:disable Migration/AddColumnWithDefault
   end
 
   def down
diff --git a/db/migrate/20190426180107_add_deployment_events_to_services.rb b/db/migrate/20190426180107_add_deployment_events_to_services.rb
index 1fb137fb5f9..e8e53728010 100644
--- a/db/migrate/20190426180107_add_deployment_events_to_services.rb
+++ b/db/migrate/20190426180107_add_deployment_events_to_services.rb
@@ -8,7 +8,7 @@ class AddDeploymentEventsToServices < ActiveRecord::Migration[5.0]
   disable_ddl_transaction!
 
   def up
-    add_column_with_default(:services, :deployment_events, :boolean, default: false, allow_null: false)
+    add_column_with_default(:services, :deployment_events, :boolean, default: false, allow_null: false) # rubocop:disable Migration/AddColumnWithDefault
   end
 
   def down
diff --git a/db/migrate/20190709204413_add_rule_type_to_approval_project_rules.rb b/db/migrate/20190709204413_add_rule_type_to_approval_project_rules.rb
index 87a228c9bf9..b11154d0f26 100644
--- a/db/migrate/20190709204413_add_rule_type_to_approval_project_rules.rb
+++ b/db/migrate/20190709204413_add_rule_type_to_approval_project_rules.rb
@@ -8,7 +8,7 @@ class AddRuleTypeToApprovalProjectRules < ActiveRecord::Migration[5.1]
   disable_ddl_transaction!
 
   def up
-    add_column_with_default :approval_project_rules, :rule_type, :integer, limit: 2, default: 0, allow_null: false
+    add_column_with_default :approval_project_rules, :rule_type, :integer, limit: 2, default: 0, allow_null: false # rubocop:disable Migration/AddColumnWithDefault
   end
 
   def down
diff --git a/db/migrate/20190907184714_add_show_whitespace_in_diffs_to_user_preferences.rb b/db/migrate/20190907184714_add_show_whitespace_in_diffs_to_user_preferences.rb
index 50d5d2b0574..41f9b36278a 100644
--- a/db/migrate/20190907184714_add_show_whitespace_in_diffs_to_user_preferences.rb
+++ b/db/migrate/20190907184714_add_show_whitespace_in_diffs_to_user_preferences.rb
@@ -11,7 +11,7 @@ class AddShowWhitespaceInDiffsToUserPreferences < ActiveRecord::Migration[5.2]
   disable_ddl_transaction!
 
   def up
-    add_column_with_default :user_preferences, :show_whitespace_in_diffs, :boolean, default: true, allow_null: false
+    add_column_with_default :user_preferences, :show_whitespace_in_diffs, :boolean, default: true, allow_null: false # rubocop:disable Migration/AddColumnWithDefault
   end
 
   def down
diff --git a/db/migrate/20190918104731_add_cleanup_status_to_cluster.rb b/db/migrate/20190918104731_add_cleanup_status_to_cluster.rb
index 0ba9d8e6c89..62290fb0fa6 100644
--- a/db/migrate/20190918104731_add_cleanup_status_to_cluster.rb
+++ b/db/migrate/20190918104731_add_cleanup_status_to_cluster.rb
@@ -9,7 +9,7 @@ class AddCleanupStatusToCluster < ActiveRecord::Migration[5.2]
   disable_ddl_transaction!
 
   def up
-    add_column_with_default(:clusters, :cleanup_status,
+    add_column_with_default(:clusters, :cleanup_status, # rubocop:disable Migration/AddColumnWithDefault
       :smallint,
       default: 1,
       allow_null: false)
diff --git a/db/migrate/20191029191901_add_enabled_to_grafana_integrations.rb b/db/migrate/20191029191901_add_enabled_to_grafana_integrations.rb
index 8db11724874..40e361e2150 100644
--- a/db/migrate/20191029191901_add_enabled_to_grafana_integrations.rb
+++ b/db/migrate/20191029191901_add_enabled_to_grafana_integrations.rb
@@ -8,7 +8,7 @@ class AddEnabledToGrafanaIntegrations < ActiveRecord::Migration[5.2]
   disable_ddl_transaction!
 
   def up
-    add_column_with_default(
+    add_column_with_default( # rubocop:disable Migration/AddColumnWithDefault
       :grafana_integrations,
       :enabled,
       :boolean,
diff --git a/db/migrate/20191112090226_add_artifacts_to_ci_build_need.rb b/db/migrate/20191112090226_add_artifacts_to_ci_build_need.rb
index 2fbd003b2e5..b868e0b44a8 100644
--- a/db/migrate/20191112090226_add_artifacts_to_ci_build_need.rb
+++ b/db/migrate/20191112090226_add_artifacts_to_ci_build_need.rb
@@ -8,7 +8,7 @@ class AddArtifactsToCiBuildNeed < ActiveRecord::Migration[5.2]
   disable_ddl_transaction!
 
   def up
-    add_column_with_default(:ci_build_needs, :artifacts,
+    add_column_with_default(:ci_build_needs, :artifacts, # rubocop:disable Migration/AddColumnWithDefault
                             :boolean,
                             default: true,
                             allow_null: false)
diff --git a/doc/development/what_requires_downtime.md b/doc/development/what_requires_downtime.md
index 9e43758a4aa..356feae4eaf 100644
--- a/doc/development/what_requires_downtime.md
+++ b/doc/development/what_requires_downtime.md
@@ -34,6 +34,9 @@ blocking access to the table being modified. See ["Adding Columns With Default
 Values"](migration_style_guide.md#adding-columns-with-default-values) for more
 information on how to use this method.
 
+Note that usage of `add_column_with_default` with `allow_null: false` to also add
+a `NOT NULL` constraint is [discouraged](https://gitlab.com/gitlab-org/gitlab/issues/38060).
+
 ## Dropping Columns
 
 Removing columns is tricky because running GitLab processes may still be using
diff --git a/rubocop/cop/migration/add_column_with_default.rb b/rubocop/cop/migration/add_column_with_default.rb
new file mode 100644
index 00000000000..8d1ab333dcf
--- /dev/null
+++ b/rubocop/cop/migration/add_column_with_default.rb
@@ -0,0 +1,64 @@
+# frozen_string_literal: true
+
+require_relative '../../migration_helpers'
+
+module RuboCop
+  module Cop
+    module Migration
+      # Cop that checks if columns are added in a way that doesn't require
+      # downtime.
+      class AddColumnWithDefault < RuboCop::Cop::Cop
+        include MigrationHelpers
+
+        WHITELISTED_TABLES = [:application_settings].freeze
+
+        MSG = '`add_column_with_default` with `allow_null: false` may cause prolonged lock situations and downtime, ' \
+          'see https://gitlab.com/gitlab-org/gitlab/issues/38060'.freeze
+
+        def on_send(node)
+          return unless in_migration?(node)
+
+          name = node.children[1]
+
+          return unless name == :add_column_with_default
+
+          # Ignore whitelisted tables.
+          return if table_whitelisted?(node.children[2])
+
+          opts = node.children.last
+
+          return unless opts && opts.type == :hash
+
+          opts.each_node(:pair) do |pair|
+            if disallows_null_values?(pair)
+              add_offense(node, location: :selector)
+            end
+          end
+        end
+
+        def table_whitelisted?(symbol)
+          symbol && symbol.type == :sym &&
+            WHITELISTED_TABLES.include?(symbol.children[0])
+        end
+
+        def disallows_null_values?(pair)
+          options = [hash_key_type(pair), hash_key_name(pair), hash_value(pair)]
+
+          options == [:sym, :allow_null, :false] # rubocop:disable Lint/BooleanSymbol
+        end
+
+        def hash_key_type(pair)
+          pair.children[0].type
+        end
+
+        def hash_key_name(pair)
+          pair.children[0].children[0]
+        end
+
+        def hash_value(pair)
+          pair.children[1].type
+        end
+      end
+    end
+  end
+end
diff --git a/rubocop/rubocop.rb b/rubocop/rubocop.rb
index 1465c73d570..5f95703df01 100644
--- a/rubocop/rubocop.rb
+++ b/rubocop/rubocop.rb
@@ -17,6 +17,7 @@ require_relative 'cop/prefer_class_methods_over_module'
 require_relative 'cop/put_project_routes_under_scope'
 require_relative 'cop/put_group_routes_under_scope'
 require_relative 'cop/migration/add_column'
+require_relative 'cop/migration/add_column_with_default'
 require_relative 'cop/migration/add_concurrent_foreign_key'
 require_relative 'cop/migration/add_concurrent_index'
 require_relative 'cop/migration/add_index'
diff --git a/spec/controllers/admin/users_controller_spec.rb b/spec/controllers/admin/users_controller_spec.rb
index f11b5e798c9..ebdfbe14dec 100644
--- a/spec/controllers/admin/users_controller_spec.rb
+++ b/spec/controllers/admin/users_controller_spec.rb
@@ -4,6 +4,7 @@ require 'spec_helper'
 
 describe Admin::UsersController do
   let(:user) { create(:user) }
+
   let_it_be(:admin) { create(:admin) }
 
   before do
diff --git a/spec/controllers/concerns/continue_params_spec.rb b/spec/controllers/concerns/continue_params_spec.rb
index b4b62cbe1e3..6af01aa837c 100644
--- a/spec/controllers/concerns/continue_params_spec.rb
+++ b/spec/controllers/concerns/continue_params_spec.rb
@@ -12,6 +12,7 @@ describe ContinueParams do
       end
     end
   end
+
   subject(:controller) { controller_class.new }
 
   def strong_continue_params(params)
diff --git a/spec/controllers/concerns/internal_redirect_spec.rb b/spec/controllers/concerns/internal_redirect_spec.rb
index e5e50cfd55e..cc6422f2817 100644
--- a/spec/controllers/concerns/internal_redirect_spec.rb
+++ b/spec/controllers/concerns/internal_redirect_spec.rb
@@ -12,6 +12,7 @@ describe InternalRedirect do
       end
     end
   end
+
   subject(:controller) { controller_class.new }
 
   describe '#safe_redirect_path' do
diff --git a/spec/controllers/projects/branches_controller_spec.rb b/spec/controllers/projects/branches_controller_spec.rb
index 4f8ab6a5def..757d8704a6a 100644
--- a/spec/controllers/projects/branches_controller_spec.rb
+++ b/spec/controllers/projects/branches_controller_spec.rb
@@ -35,6 +35,7 @@ describe Projects::BranchesController do
       context "valid branch name, valid source" do
         let(:branch) { "merge_branch" }
         let(:ref) { "master" }
+
         it 'redirects' do
           expect(subject)
             .to redirect_to("/#{project.full_path}/tree/merge_branch")
@@ -44,6 +45,7 @@ describe Projects::BranchesController do
       context "invalid branch name, valid ref" do
         let(:branch) { "<script>alert('merge');</script>" }
         let(:ref) { "master" }
+
         it 'redirects' do
           expect(subject)
             .to redirect_to("/#{project.full_path}/tree/alert('merge');")
@@ -53,18 +55,21 @@ describe Projects::BranchesController do
       context "valid branch name, invalid ref" do
         let(:branch) { "merge_branch" }
         let(:ref) { "<script>alert('ref');</script>" }
+
         it { is_expected.to render_template('new') }
       end
 
       context "invalid branch name, invalid ref" do
         let(:branch) { "<script>alert('merge');</script>" }
         let(:ref) { "<script>alert('ref');</script>" }
+
         it { is_expected.to render_template('new') }
       end
 
       context "valid branch name with encoded slashes" do
         let(:branch) { "feature%2Ftest" }
         let(:ref) { "<script>alert('ref');</script>" }
+
         it { is_expected.to render_template('new') }
         it { project.repository.branch_exists?('feature/test') }
       end
diff --git a/spec/controllers/projects/clusters_controller_spec.rb b/spec/controllers/projects/clusters_controller_spec.rb
index ab8bfc0cabe..642932e2935 100644
--- a/spec/controllers/projects/clusters_controller_spec.rb
+++ b/spec/controllers/projects/clusters_controller_spec.rb
@@ -26,6 +26,7 @@ describe Projects::ClustersController do
         let(:project) { create(:project) }
         let!(:enabled_cluster) { create(:cluster, :provided_by_gcp, projects: [project]) }
         let!(:disabled_cluster) { create(:cluster, :disabled, :provided_by_gcp, :production_environment, projects: [project]) }
+
         it 'lists available clusters' do
           go
 
diff --git a/spec/controllers/projects/find_file_controller_spec.rb b/spec/controllers/projects/find_file_controller_spec.rb
index a493985f8a0..4d8933f3aaf 100644
--- a/spec/controllers/projects/find_file_controller_spec.rb
+++ b/spec/controllers/projects/find_file_controller_spec.rb
@@ -28,11 +28,13 @@ describe Projects::FindFileController do
 
     context "valid branch" do
       let(:id) { 'master' }
+
       it { is_expected.to respond_with(:success) }
     end
 
     context "invalid branch" do
       let(:id) { 'invalid-branch' }
+
       it { is_expected.to respond_with(:not_found) }
     end
   end
@@ -50,6 +52,7 @@ describe Projects::FindFileController do
 
     context "valid branch" do
       let(:id) { 'master' }
+
       it 'returns an array of file path list' do
         go
 
diff --git a/spec/controllers/projects/issues_controller_spec.rb b/spec/controllers/projects/issues_controller_spec.rb
index f64e928098d..945a56365c8 100644
--- a/spec/controllers/projects/issues_controller_spec.rb
+++ b/spec/controllers/projects/issues_controller_spec.rb
@@ -1357,6 +1357,7 @@ describe Projects::IssuesController do
 
   describe 'GET #discussions' do
     let!(:discussion) { create(:discussion_note_on_issue, noteable: issue, project: issue.project) }
+
     context 'when authenticated' do
       before do
         project.add_developer(user)
diff --git a/spec/controllers/projects/tags_controller_spec.rb b/spec/controllers/projects/tags_controller_spec.rb
index 7e5237facf6..15ef1c65c53 100644
--- a/spec/controllers/projects/tags_controller_spec.rb
+++ b/spec/controllers/projects/tags_controller_spec.rb
@@ -29,11 +29,13 @@ describe Projects::TagsController do
 
     context "valid tag" do
       let(:id) { 'v1.0.0' }
+
       it { is_expected.to respond_with(:success) }
     end
 
     context "invalid tag" do
       let(:id) { 'latest' }
+
       it { is_expected.to respond_with(:not_found) }
     end
   end
diff --git a/spec/controllers/projects/wikis_controller_spec.rb b/spec/controllers/projects/wikis_controller_spec.rb
index 3100aa2cb96..bfa555aab4c 100644
--- a/spec/controllers/projects/wikis_controller_spec.rb
+++ b/spec/controllers/projects/wikis_controller_spec.rb
@@ -213,6 +213,7 @@ describe Projects::WikisController do
   describe 'PATCH #update' do
     let(:new_title) { 'New title' }
     let(:new_content) { 'New content' }
+
     subject do
       patch(:update,
             params: {
diff --git a/spec/controllers/users_controller_spec.rb b/spec/controllers/users_controller_spec.rb
index bbbb9691f53..597d2a185b5 100644
--- a/spec/controllers/users_controller_spec.rb
+++ b/spec/controllers/users_controller_spec.rb
@@ -81,6 +81,7 @@ describe UsersController do
 
     context 'json with events' do
       let(:project) { create(:project) }
+
       before do
         project.add_developer(user)
         Gitlab::DataBuilder::Push.build_sample(project, user)
diff --git a/spec/features/dashboard/snippets_spec.rb b/spec/features/dashboard/snippets_spec.rb
index ff3eb58931d..94dc8601abb 100644
--- a/spec/features/dashboard/snippets_spec.rb
+++ b/spec/features/dashboard/snippets_spec.rb
@@ -91,6 +91,7 @@ describe 'Dashboard snippets' do
 
   context 'as an external user' do
     let(:user) { create(:user, :external) }
+
     before do
       sign_in(user)
       visit dashboard_snippets_path
diff --git a/spec/frontend/vue_shared/components/loading_button_spec.js b/spec/frontend/vue_shared/components/loading_button_spec.js
new file mode 100644
index 00000000000..34fac37c250
--- /dev/null
+++ b/spec/frontend/vue_shared/components/loading_button_spec.js
@@ -0,0 +1,96 @@
+import { shallowMount } from '@vue/test-utils';
+import LoadingButton from '~/vue_shared/components/loading_button.vue';
+
+const LABEL = 'Hello';
+
+describe('LoadingButton', () => {
+  let wrapper;
+
+  afterEach(() => {
+    wrapper.destroy();
+  });
+
+  const buildWrapper = (propsData = {}) => {
+    wrapper = shallowMount(LoadingButton, {
+      propsData,
+    });
+  };
+  const findButtonLabel = () => wrapper.find('.js-loading-button-label');
+  const findButtonIcon = () => wrapper.find('.js-loading-button-icon');
+
+  describe('loading spinner', () => {
+    it('shown when loading', () => {
+      buildWrapper({ loading: true });
+
+      expect(findButtonIcon().exists()).toBe(true);
+    });
+  });
+
+  describe('disabled state', () => {
+    it('disabled when loading', () => {
+      buildWrapper({ loading: true });
+      expect(wrapper.attributes('disabled')).toBe('disabled');
+    });
+
+    it('not disabled when normal', () => {
+      buildWrapper({ loading: false });
+
+      expect(wrapper.attributes('disabled')).toBe(undefined);
+    });
+  });
+
+  describe('label', () => {
+    it('shown when normal', () => {
+      buildWrapper({ loading: false, label: LABEL });
+      expect(findButtonLabel().text()).toBe(LABEL);
+    });
+
+    it('shown when loading', () => {
+      buildWrapper({ loading: false, label: LABEL });
+      expect(findButtonLabel().text()).toBe(LABEL);
+    });
+  });
+
+  describe('container class', () => {
+    it('should default to btn btn-align-content', () => {
+      buildWrapper();
+
+      expect(wrapper.classes()).toContain('btn');
+      expect(wrapper.classes()).toContain('btn-align-content');
+    });
+
+    it('should be configurable through props', () => {
+      const containerClass = 'test-class';
+
+      buildWrapper({
+        containerClass,
+      });
+
+      expect(wrapper.classes()).not.toContain('btn');
+      expect(wrapper.classes()).not.toContain('btn-align-content');
+      expect(wrapper.classes()).toContain(containerClass);
+    });
+  });
+
+  describe('click callback prop', () => {
+    it('calls given callback when normal', () => {
+      buildWrapper({
+        loading: false,
+      });
+
+      wrapper.trigger('click');
+
+      expect(wrapper.emitted('click')).toBeTruthy();
+    });
+
+    it('does not call given callback when disabled because of loading', () => {
+      buildWrapper({
+        loading: true,
+      });
+
+      wrapper.trigger('click');
+
+      expect(wrapper.emitted('click')).toBeFalsy();
+    });
+  });
+});
diff --git a/spec/javascripts/ide/stores/actions_spec.js b/spec/javascripts/ide/stores/actions_spec.js
index 0ee114cb70d..cb03204d337 100644
--- a/spec/javascripts/ide/stores/actions_spec.js
+++ b/spec/javascripts/ide/stores/actions_spec.js
@@ -319,7 +319,7 @@ describe('Multi-file store actions', () => {
             { type: types.TOGGLE_FILE_OPEN, payload: 'test' },
             { type: types.ADD_FILE_TO_CHANGED, payload: 'test' },
           ],
-          [
+          jasmine.arrayContaining([
             {
               type: 'setFileActive',
               payload: 'test',
@@ -327,7 +327,7 @@ describe('Multi-file store actions', () => {
             {
               type: 'triggerFilesChange',
             },
-          ],
+          ]),
           done,
         );
       });
@@ -350,6 +350,21 @@ describe('Multi-file store actions', () => {
           })
           .catch(done.fail);
       });
+
+      it('bursts unused seal', done => {
+        store
+          .dispatch('createTempEntry', {
+            name: 'test',
+            branchId: 'mybranch',
+            type: 'blob',
+          })
+          .then(() => {
+            expect(store.state.unusedSeal).toBe(false);
+
+            done();
+          })
+          .catch(done.fail);
+      });
     });
   });
 
@@ -648,6 +663,19 @@ describe('Multi-file store actions', () => {
         ],
       );
     });
+
+    it('bursts unused seal', done => {
+      store.state.entries.test = file('test');
+
+      store
+        .dispatch('deleteEntry', 'test')
+        .then(() => {
+          expect(store.state.unusedSeal).toBe(false);
+
+          done();
+        })
+        .catch(done.fail);
+    });
   });
 
   describe('renameEntry', () => {
@@ -747,7 +775,7 @@ describe('Multi-file store actions', () => {
               payload: 'renamed',
             },
           ],
-          [{ type: 'triggerFilesChange' }],
+          [{ type: 'burstUnusedSeal' }, { type: 'triggerFilesChange' }],
           done,
         );
       });
@@ -807,6 +835,20 @@ describe('Multi-file store actions', () => {
           .then(done)
           .catch(done.fail);
       });
+
+      it('bursts unused seal', done => {
+        store
+          .dispatch('renameEntry', {
+            path: 'orig',
+            name: 'renamed',
+          })
+          .then(() => {
+            expect(store.state.unusedSeal).toBe(false);
+
+            done();
+          })
+          .catch(done.fail);
+      });
     });
 
     describe('folder', () => {
diff --git a/spec/javascripts/vue_shared/components/loading_button_spec.js b/spec/javascripts/vue_shared/components/loading_button_spec.js
deleted file mode 100644
index 6b03c354e01..00000000000
--- a/spec/javascripts/vue_shared/components/loading_button_spec.js
+++ /dev/null
@@ -1,111 +0,0 @@
-import Vue from 'vue';
-import mountComponent from 'spec/helpers/vue_mount_component_helper';
-import loadingButton from '~/vue_shared/components/loading_button.vue';
-
-const LABEL = 'Hello';
-
-describe('LoadingButton', function() {
-  let vm;
-  let LoadingButton;
-
-  beforeEach(() => {
-    LoadingButton = Vue.extend(loadingButton);
-  });
-
-  afterEach(() => {
-    vm.$destroy();
-  });
-
-  describe('loading spinner', () => {
-    it('shown when loading', () => {
-      vm = mountComponent(LoadingButton, {
-        loading: true,
-      });
-
-      expect(vm.$el.querySelector('.js-loading-button-icon')).toBeDefined();
-    });
-  });
-
-  describe('disabled state', () => {
-    it('disabled when loading', () => {
-      vm = mountComponent(LoadingButton, {
-        loading: true,
-      });
-
-      expect(vm.$el.disabled).toEqual(true);
-    });
-
-    it('not disabled when normal', () => {
-      vm = mountComponent(LoadingButton, {
-        loading: false,
-      });
-
-      expect(vm.$el.disabled).toEqual(false);
-    });
-  });
-
-  describe('label', () => {
-    it('shown when normal', () => {
-      vm = mountComponent(LoadingButton, {
-        loading: false,
-        label: LABEL,
-      });
-      const label = vm.$el.querySelector('.js-loading-button-label');
-
-      expect(label.textContent.trim()).toEqual(LABEL);
-    });
-
-    it('shown when loading', () => {
-      vm = mountComponent(LoadingButton, {
-        loading: true,
-        label: LABEL,
-      });
-      const label = vm.$el.querySelector('.js-loading-button-label');
-
-      expect(label.textContent.trim()).toEqual(LABEL);
-    });
-  });
-
-  describe('container class', () => {
-    it('should default to btn btn-align-content', () => {
-      vm = mountComponent(LoadingButton, {});
-
-      expect(vm.$el.classList.contains('btn')).toEqual(true);
-      expect(vm.$el.classList.contains('btn-align-content')).toEqual(true);
-    });
-
-    it('should be configurable through props', () => {
-      vm = mountComponent(LoadingButton, {
-        containerClass: 'test-class',
-      });
-
-      expect(vm.$el.classList.contains('btn')).toEqual(false);
-      expect(vm.$el.classList.contains('btn-align-content')).toEqual(false);
-      expect(vm.$el.classList.contains('test-class')).toEqual(true);
-    });
-  });
-
-  describe('click callback prop', () => {
-    it('calls given callback when normal', () => {
-      vm = mountComponent(LoadingButton, {
-        loading: false,
-      });
-      spyOn(vm, '$emit');
-
-      vm.$el.click();
-
-      expect(vm.$emit).toHaveBeenCalledWith('click', jasmine.any(Object));
-    });
-
-    it('does not call given callback when disabled because of loading', () => {
-      vm = mountComponent(LoadingButton, {
-        loading: true,
-      });
-      spyOn(vm, '$emit');
-
-      vm.$el.click();
-
-      expect(vm.$emit).not.toHaveBeenCalled();
-    });
-  });
-});
diff --git a/spec/models/blob_spec.rb b/spec/models/blob_spec.rb
index 2c141cae98d..c7ca0625b77 100644
--- a/spec/models/blob_spec.rb
+++ b/spec/models/blob_spec.rb
@@ -424,6 +424,7 @@ describe Blob do
 
   describe 'policy' do
     let(:project) { build(:project) }
+
     subject { described_class.new(fake_blob(path: 'foo'), project) }
 
     it 'works with policy' do
diff --git a/spec/models/blob_viewer/changelog_spec.rb b/spec/models/blob_viewer/changelog_spec.rb
index 0fcc94182af..b71531ff3c2 100644
--- a/spec/models/blob_viewer/changelog_spec.rb
+++ b/spec/models/blob_viewer/changelog_spec.rb
@@ -7,6 +7,7 @@ describe BlobViewer::Changelog do
 
   let(:project) { create(:project, :repository) }
   let(:blob) { fake_blob(path: 'CHANGELOG') }
+
   subject { described_class.new(blob) }
 
   describe '#render_error' do
diff --git a/spec/models/blob_viewer/composer_json_spec.rb b/spec/models/blob_viewer/composer_json_spec.rb
index eda34779679..a6bb64ba121 100644
--- a/spec/models/blob_viewer/composer_json_spec.rb
+++ b/spec/models/blob_viewer/composer_json_spec.rb
@@ -15,6 +15,7 @@ describe BlobViewer::ComposerJson do
     SPEC
   end
   let(:blob) { fake_blob(path: 'composer.json', data: data) }
+
   subject { described_class.new(blob) }
 
   describe '#package_name' do
diff --git a/spec/models/blob_viewer/gemspec_spec.rb b/spec/models/blob_viewer/gemspec_spec.rb
index b6cc82c03ba..291d14e2d72 100644
--- a/spec/models/blob_viewer/gemspec_spec.rb
+++ b/spec/models/blob_viewer/gemspec_spec.rb
@@ -15,6 +15,7 @@ describe BlobViewer::Gemspec do
     SPEC
   end
   let(:blob) { fake_blob(path: 'activerecord.gemspec', data: data) }
+
   subject { described_class.new(blob) }
 
   describe '#package_name' do
diff --git a/spec/models/blob_viewer/gitlab_ci_yml_spec.rb b/spec/models/blob_viewer/gitlab_ci_yml_spec.rb
index db405ceb4f1..02993052124 100644
--- a/spec/models/blob_viewer/gitlab_ci_yml_spec.rb
+++ b/spec/models/blob_viewer/gitlab_ci_yml_spec.rb
@@ -12,6 +12,7 @@ describe BlobViewer::GitlabCiYml do
   let(:data) { File.read(Rails.root.join('spec/support/gitlab_stubs/gitlab_ci.yml')) }
   let(:blob) { fake_blob(path: '.gitlab-ci.yml', data: data) }
   let(:sha) { sample_commit.id }
+
   subject { described_class.new(blob) }
 
   describe '#validation_message' do
diff --git a/spec/models/blob_viewer/license_spec.rb b/spec/models/blob_viewer/license_spec.rb
index e02bfae3829..b0426401932 100644
--- a/spec/models/blob_viewer/license_spec.rb
+++ b/spec/models/blob_viewer/license_spec.rb
@@ -7,6 +7,7 @@ describe BlobViewer::License do
 
   let(:project) { create(:project, :repository) }
   let(:blob) { fake_blob(path: 'LICENSE') }
+
   subject { described_class.new(blob) }
 
   describe '#license' do
diff --git a/spec/models/blob_viewer/package_json_spec.rb b/spec/models/blob_viewer/package_json_spec.rb
index b317278f3c8..7f7b1dcfcb3 100644
--- a/spec/models/blob_viewer/package_json_spec.rb
+++ b/spec/models/blob_viewer/package_json_spec.rb
@@ -15,6 +15,7 @@ describe BlobViewer::PackageJson do
     SPEC
   end
   let(:blob) { fake_blob(path: 'package.json', data: data) }
+
   subject { described_class.new(blob) }
 
   describe '#package_name' do
@@ -54,6 +55,7 @@ describe BlobViewer::PackageJson do
       SPEC
     end
     let(:blob) { fake_blob(path: 'package.json', data: data) }
+
     subject { described_class.new(blob) }
 
     describe '#package_url' do
diff --git a/spec/models/blob_viewer/podspec_json_spec.rb b/spec/models/blob_viewer/podspec_json_spec.rb
index 7f1fb8666fd..dd5ed03b77d 100644
--- a/spec/models/blob_viewer/podspec_json_spec.rb
+++ b/spec/models/blob_viewer/podspec_json_spec.rb
@@ -15,6 +15,7 @@ describe BlobViewer::PodspecJson do
     SPEC
   end
   let(:blob) { fake_blob(path: 'AFNetworking.podspec.json', data: data) }
+
   subject { described_class.new(blob) }
 
   describe '#package_name' do
diff --git a/spec/models/blob_viewer/podspec_spec.rb b/spec/models/blob_viewer/podspec_spec.rb
index 527ae79d766..2d9b184c5cb 100644
--- a/spec/models/blob_viewer/podspec_spec.rb
+++ b/spec/models/blob_viewer/podspec_spec.rb
@@ -15,6 +15,7 @@ describe BlobViewer::Podspec do
     SPEC
   end
   let(:blob) { fake_blob(path: 'Reachability.podspec', data: data) }
+
   subject { described_class.new(blob) }
 
   describe '#package_name' do
diff --git a/spec/models/blob_viewer/readme_spec.rb b/spec/models/blob_viewer/readme_spec.rb
index 958927bddb4..6586adbc373 100644
--- a/spec/models/blob_viewer/readme_spec.rb
+++ b/spec/models/blob_viewer/readme_spec.rb
@@ -7,6 +7,7 @@ describe BlobViewer::Readme do
 
   let(:project) { create(:project, :repository, :wiki_repo) }
   let(:blob) { fake_blob(path: 'README.md') }
+
   subject { described_class.new(blob) }
 
   describe '#render_error' do
diff --git a/spec/models/blob_viewer/route_map_spec.rb b/spec/models/blob_viewer/route_map_spec.rb
index f7ce873c9d1..6c703df5c4c 100644
--- a/spec/models/blob_viewer/route_map_spec.rb
+++ b/spec/models/blob_viewer/route_map_spec.rb
@@ -14,6 +14,7 @@ describe BlobViewer::RouteMap do
     MAP
   end
   let(:blob) { fake_blob(path: '.gitlab/route-map.yml', data: data) }
+
   subject { described_class.new(blob) }
 
   describe '#validation_message' do
diff --git a/spec/models/ci/build_spec.rb b/spec/models/ci/build_spec.rb
index 20915e6d3b1..d813a88c809 100644
--- a/spec/models/ci/build_spec.rb
+++ b/spec/models/ci/build_spec.rb
@@ -610,6 +610,7 @@ describe Ci::Build do
 
     context 'artifacts archive is a zip file and metadata exists' do
       let(:build) { create(:ci_build, :artifacts) }
+
       it { is_expected.to be_truthy }
     end
   end
@@ -1408,6 +1409,7 @@ describe Ci::Build do
 
         describe '#erased?' do
           let!(:build) { create(:ci_build, :trace_artifact, :success, :artifacts) }
+
           subject { build.erased? }
 
           context 'job has not been erased' do
@@ -1469,6 +1471,7 @@ describe Ci::Build do
   describe '#first_pending' do
     let!(:first) { create(:ci_build, pipeline: pipeline, status: 'pending', created_at: Date.yesterday) }
     let!(:second) { create(:ci_build, pipeline: pipeline, status: 'pending') }
+
     subject { described_class.first_pending }
 
     it { is_expected.to be_a(described_class) }
diff --git a/spec/models/ci/runner_spec.rb b/spec/models/ci/runner_spec.rb
index ac438f7d473..5c9a03a26ec 100644
--- a/spec/models/ci/runner_spec.rb
+++ b/spec/models/ci/runner_spec.rb
@@ -755,11 +755,13 @@ describe Ci::Runner do
     context 'when group runner' do
       let(:runner) { create(:ci_runner, :group, description: 'Group runner', groups: [group]) }
       let(:group) { create(:group) }
+
       it { is_expected.to be_falsey }
     end
 
     context 'when shared runner' do
       let(:runner) { create(:ci_runner, :instance, description: 'Shared runner') }
+
       it { is_expected.to be_falsey }
     end
 
diff --git a/spec/models/ci/stage_spec.rb b/spec/models/ci/stage_spec.rb
index c997f1ef405..b65c11f837c 100644
--- a/spec/models/ci/stage_spec.rb
+++ b/spec/models/ci/stage_spec.rb
@@ -146,6 +146,7 @@ describe Ci::Stage, :models do
 
     let(:user) { create(:user) }
     let(:stage) { create(:ci_stage_entity, status: :created) }
+
     subject { stage.detailed_status(user) }
 
     where(:statuses, :label) do
diff --git a/spec/models/clusters/applications/elastic_stack_spec.rb b/spec/models/clusters/applications/elastic_stack_spec.rb
index d0e0dd5ad57..2179e930691 100644
--- a/spec/models/clusters/applications/elastic_stack_spec.rb
+++ b/spec/models/clusters/applications/elastic_stack_spec.rb
@@ -123,6 +123,7 @@ describe Clusters::Applications::ElasticStack do
 
     context "cluster doesn't have kubeclient" do
       let(:cluster) { create(:cluster) }
+
       subject { create(:clusters_applications_elastic_stack, cluster: cluster) }
 
       it 'returns nil' do
diff --git a/spec/models/clusters/applications/helm_spec.rb b/spec/models/clusters/applications/helm_spec.rb
index 64f58155a66..87454e1d3e2 100644
--- a/spec/models/clusters/applications/helm_spec.rb
+++ b/spec/models/clusters/applications/helm_spec.rb
@@ -52,6 +52,7 @@ describe Clusters::Applications::Helm do
 
   describe '#issue_client_cert' do
     let(:application) { create(:clusters_applications_helm) }
+
     subject { application.issue_client_cert }
 
     it 'returns a new cert' do
diff --git a/spec/models/clusters/applications/knative_spec.rb b/spec/models/clusters/applications/knative_spec.rb
index c1057af5f80..68ac3f0d483 100644
--- a/spec/models/clusters/applications/knative_spec.rb
+++ b/spec/models/clusters/applications/knative_spec.rb
@@ -131,6 +131,7 @@ describe Clusters::Applications::Knative do
 
   describe '#update_command' do
     let!(:current_installed_version) { knative.version = '0.1.0' }
+
     subject { knative.update_command }
 
     it 'is initialized with current version' do
diff --git a/spec/models/clusters/applications/prometheus_spec.rb b/spec/models/clusters/applications/prometheus_spec.rb
index d588ce3bc38..0f829e138d5 100644
--- a/spec/models/clusters/applications/prometheus_spec.rb
+++ b/spec/models/clusters/applications/prometheus_spec.rb
@@ -66,6 +66,7 @@ describe Clusters::Applications::Prometheus do
 
     context "cluster doesn't have kubeclient" do
       let(:cluster) { create(:cluster) }
+
       subject { create(:clusters_applications_prometheus, cluster: cluster) }
 
       it 'returns nil' do
diff --git a/spec/models/concerns/cache_markdown_field_spec.rb b/spec/models/concerns/cache_markdown_field_spec.rb
index 9a12c3d6965..06d12c14793 100644
--- a/spec/models/concerns/cache_markdown_field_spec.rb
+++ b/spec/models/concerns/cache_markdown_field_spec.rb
@@ -92,6 +92,7 @@ describe CacheMarkdownField, :clean_gitlab_redis_cache do
 
     describe '#latest_cached_markdown_version' do
       let(:thing) { klass.new }
+
       subject { thing.latest_cached_markdown_version }
 
       it 'returns default version' do
@@ -151,6 +152,7 @@ describe CacheMarkdownField, :clean_gitlab_redis_cache do
 
     describe '#banzai_render_context' do
       let(:thing) { klass.new(title: markdown, title_html: html, cached_markdown_version: cache_version) }
+
       subject(:context) { thing.banzai_render_context(:title) }
 
       it 'sets project to nil if the object lacks a project' do
diff --git a/spec/models/concerns/ignorable_columns_spec.rb b/spec/models/concerns/ignorable_columns_spec.rb
index 55efa1b5fda..018b1296c62 100644
--- a/spec/models/concerns/ignorable_columns_spec.rb
+++ b/spec/models/concerns/ignorable_columns_spec.rb
@@ -49,11 +49,13 @@ describe IgnorableColumns do
 
     context 'with single column' do
       let(:columns) { :name }
+
       it_behaves_like 'storing removal information'
     end
 
     context 'with array column' do
       let(:columns) { %i[name created_at] }
+
       it_behaves_like 'storing removal information'
     end
 
diff --git a/spec/models/concerns/loaded_in_group_list_spec.rb b/spec/models/concerns/loaded_in_group_list_spec.rb
index 7c97b580779..509811822e0 100644
--- a/spec/models/concerns/loaded_in_group_list_spec.rb
+++ b/spec/models/concerns/loaded_in_group_list_spec.rb
@@ -4,6 +4,7 @@ require 'spec_helper'
 
 describe LoadedInGroupList do
   let(:parent) { create(:group) }
+
   subject(:found_group) { Group.with_selects_for_list.find_by(id: parent.id) }
 
   describe '.with_selects_for_list' do
diff --git a/spec/models/concerns/prometheus_adapter_spec.rb b/spec/models/concerns/prometheus_adapter_spec.rb
index 3d26ba95192..3ac96b308ed 100644
--- a/spec/models/concerns/prometheus_adapter_spec.rb
+++ b/spec/models/concerns/prometheus_adapter_spec.rb
@@ -103,6 +103,7 @@ describe PrometheusAdapter, :use_clean_rails_memory_store_caching do
 
   describe '#calculate_reactive_cache' do
     let(:environment) { create(:environment, slug: 'env-slug') }
+
     before do
       service.manual_configuration = true
       service.active = true
diff --git a/spec/models/concerns/resolvable_note_spec.rb b/spec/models/concerns/resolvable_note_spec.rb
index 4f46252a044..12e50ac807e 100644
--- a/spec/models/concerns/resolvable_note_spec.rb
+++ b/spec/models/concerns/resolvable_note_spec.rb
@@ -5,6 +5,7 @@ require 'spec_helper'
 describe Note, ResolvableNote do
   let(:project) { create(:project, :repository) }
   let(:merge_request) { create(:merge_request, source_project: project) }
+
   subject { create(:discussion_note_on_merge_request, noteable: merge_request, project: project) }
 
   context 'resolvability scopes' do
diff --git a/spec/models/concerns/token_authenticatable_spec.rb b/spec/models/concerns/token_authenticatable_spec.rb
index 43b894b5957..36eb8fdaba4 100644
--- a/spec/models/concerns/token_authenticatable_spec.rb
+++ b/spec/models/concerns/token_authenticatable_spec.rb
@@ -13,6 +13,7 @@ end
 
 describe User, 'TokenAuthenticatable' do
   let(:token_field) { :feed_token }
+
   it_behaves_like 'TokenAuthenticatable'
 
   describe 'ensures authentication token' do
diff --git a/spec/models/environment_spec.rb b/spec/models/environment_spec.rb
index b82a9e9aa9d..e37a7e85b75 100644
--- a/spec/models/environment_spec.rb
+++ b/spec/models/environment_spec.rb
@@ -8,6 +8,7 @@ describe Environment, :use_clean_rails_memory_store_caching do
   include RepoHelpers
 
   let(:project) { create(:project, :stubbed_repository) }
+
   subject(:environment) { create(:environment, project: project) }
 
   it { is_expected.to be_kind_of(ReactiveCaching) }
@@ -676,6 +677,7 @@ describe Environment, :use_clean_rails_memory_store_caching do
 
           context 'with deployment' do
             let!(:deployment) { create(:deployment, :success, environment: environment) }
+
             it { is_expected.to be_truthy }
           end
 
@@ -832,6 +834,7 @@ describe Environment, :use_clean_rails_memory_store_caching do
 
         context 'and a deployment' do
           let!(:deployment) { create(:deployment, environment: environment) }
+
           it { is_expected.to be_truthy }
         end
 
@@ -866,6 +869,7 @@ describe Environment, :use_clean_rails_memory_store_caching do
 
   describe '#metrics' do
     let(:project) { create(:prometheus_project) }
+
     subject { environment.metrics }
 
     context 'when the environment has metrics' do
@@ -947,6 +951,7 @@ describe Environment, :use_clean_rails_memory_store_caching do
   describe '#additional_metrics' do
     let(:project) { create(:prometheus_project) }
     let(:metric_params) { [] }
+
     subject { environment.additional_metrics(*metric_params) }
 
     context 'when the environment has additional metrics' do
diff --git a/spec/models/external_issue_spec.rb b/spec/models/external_issue_spec.rb
index 9d064d458f0..b8d85d49b07 100644
--- a/spec/models/external_issue_spec.rb
+++ b/spec/models/external_issue_spec.rb
@@ -33,6 +33,7 @@ describe ExternalIssue do
 
     context 'if issue id is a number' do
       let(:issue) { described_class.new('1234', project) }
+
       it 'returns the issue ID prefixed by #' do
         expect(issue.reference_link_text).to eq '#1234'
       end
diff --git a/spec/models/global_milestone_spec.rb b/spec/models/global_milestone_spec.rb
index 9d901d01a52..34dbdfec60d 100644
--- a/spec/models/global_milestone_spec.rb
+++ b/spec/models/global_milestone_spec.rb
@@ -162,6 +162,7 @@ describe GlobalMilestone do
 
   describe '#initialize' do
     let(:milestone1_project1) { create(:milestone, title: "Milestone v1.2", project: project1) }
+
     subject(:global_milestone) { described_class.new(milestone1_project1) }
 
     it 'has exactly one group milestone' do
diff --git a/spec/models/group_spec.rb b/spec/models/group_spec.rb
index 3fa9d71cc7d..842acf92c2a 100644
--- a/spec/models/group_spec.rb
+++ b/spec/models/group_spec.rb
@@ -28,6 +28,7 @@ describe Group do
     describe '#members & #requesters' do
       let(:requester) { create(:user) }
       let(:developer) { create(:user) }
+
       before do
         group.request_access(requester)
         group.add_developer(developer)
diff --git a/spec/models/hooks/web_hook_log_spec.rb b/spec/models/hooks/web_hook_log_spec.rb
index 22aad2fab0a..3520720d9a4 100644
--- a/spec/models/hooks/web_hook_log_spec.rb
+++ b/spec/models/hooks/web_hook_log_spec.rb
@@ -53,16 +53,19 @@ describe WebHookLog do
 
     describe '2xx' do
       let(:status) { '200' }
+
       it { expect(web_hook_log.success?).to be_truthy }
     end
 
     describe 'not 2xx' do
       let(:status) { '500' }
+
       it { expect(web_hook_log.success?).to be_falsey }
     end
 
     describe 'internal erorr' do
       let(:status) { 'internal error' }
+
       it { expect(web_hook_log.success?).to be_falsey }
     end
   end
diff --git a/spec/models/instance_configuration_spec.rb b/spec/models/instance_configuration_spec.rb
index 43954511858..3e0181b8846 100644
--- a/spec/models/instance_configuration_spec.rb
+++ b/spec/models/instance_configuration_spec.rb
@@ -48,6 +48,7 @@ describe InstanceConfiguration do
 
       describe '#gitlab_pages' do
         let(:gitlab_pages) { subject.settings[:gitlab_pages] }
+
         it 'returns Settings.pages' do
           gitlab_pages.delete(:ip_address)
 
@@ -73,6 +74,7 @@ describe InstanceConfiguration do
 
       describe '#gitlab_ci' do
         let(:gitlab_ci) { subject.settings[:gitlab_ci] }
+
         it 'returns Settings.gitalb_ci' do
           gitlab_ci.delete(:artifacts_max_size)
 
diff --git a/spec/models/internal_id_spec.rb b/spec/models/internal_id_spec.rb
index c73ade3f896..33d03bfc0f5 100644
--- a/spec/models/internal_id_spec.rb
+++ b/spec/models/internal_id_spec.rb
@@ -170,6 +170,7 @@ describe InternalId do
 
   describe '.track_greatest' do
     let(:value) { 9001 }
+
     subject { described_class.track_greatest(issue, scope, usage, value, init) }
 
     context 'in the absence of a record' do
@@ -210,6 +211,7 @@ describe InternalId do
 
   describe '#increment_and_save!' do
     let(:id) { create(:internal_id) }
+
     subject { id.increment_and_save! }
 
     it 'returns incremented iid' do
@@ -236,6 +238,7 @@ describe InternalId do
   describe '#track_greatest_and_save!' do
     let(:id) { create(:internal_id) }
     let(:new_last_value) { 9001 }
+
     subject { id.track_greatest_and_save!(new_last_value) }
 
     it 'returns new last value' do
diff --git a/spec/models/issue_spec.rb b/spec/models/issue_spec.rb
index d1ed06dd04d..5c3f7c09e22 100644
--- a/spec/models/issue_spec.rb
+++ b/spec/models/issue_spec.rb
@@ -259,6 +259,7 @@ describe Issue do
   describe '#can_move?' do
     let(:user) { create(:user) }
     let(:issue) { create(:issue) }
+
     subject { issue.can_move?(user) }
 
     context 'user is not a member of project issue belongs to' do
@@ -277,6 +278,7 @@ describe Issue do
 
       context 'issue not persisted' do
         let(:issue) { build(:issue, project: project) }
+
         it { is_expected.to eq false }
       end
 
@@ -306,6 +308,7 @@ describe Issue do
 
   describe '#moved?' do
     let(:issue) { create(:issue) }
+
     subject { issue.moved? }
 
     context 'issue not moved' do
@@ -322,6 +325,7 @@ describe Issue do
 
   describe '#duplicated?' do
     let(:issue) { create(:issue) }
+
     subject { issue.duplicated? }
 
     context 'issue not duplicated' do
@@ -380,6 +384,7 @@ describe Issue do
 
   describe '#has_related_branch?' do
     let(:issue) { create(:issue, title: "Blue Bell Knoll") }
+
     subject { issue.has_related_branch? }
 
     context 'branch found' do
@@ -442,6 +447,7 @@ describe Issue do
 
   describe '#can_be_worked_on?' do
     let(:project) { build(:project) }
+
     subject { build(:issue, :opened, project: project) }
 
     context 'is closed' do
diff --git a/spec/models/key_spec.rb b/spec/models/key_spec.rb
index 2dd9583087f..1ae90cae4b1 100644
--- a/spec/models/key_spec.rb
+++ b/spec/models/key_spec.rb
@@ -25,6 +25,7 @@ describe Key, :mailer do
 
   describe "Methods" do
     let(:user) { create(:user) }
+
     it { is_expected.to respond_to :projects }
     it { is_expected.to respond_to :publishable_key }
 
diff --git a/spec/models/merge_request_spec.rb b/spec/models/merge_request_spec.rb
index bf90fa53aba..c98d123ff52 100644
--- a/spec/models/merge_request_spec.rb
+++ b/spec/models/merge_request_spec.rb
@@ -110,6 +110,7 @@ describe MergeRequest do
 
   describe '#squash?' do
     let(:merge_request) { build(:merge_request, squash: squash) }
+
     subject { merge_request.squash? }
 
     context 'disabled in database' do
@@ -851,6 +852,7 @@ describe MergeRequest do
 
   describe '#modified_paths' do
     let(:paths) { double(:paths) }
+
     subject(:merge_request) { build(:merge_request) }
 
     before do
@@ -879,6 +881,7 @@ describe MergeRequest do
 
     context 'when no arguments provided' do
       let(:diff) { merge_request.merge_request_diff }
+
       subject(:merge_request) { create(:merge_request, source_branch: 'feature', target_branch: 'master') }
 
       it 'returns affected file paths for merge_request_diff' do
@@ -1554,6 +1557,7 @@ describe MergeRequest do
   describe '#calculate_reactive_cache' do
     let(:project) { create(:project, :repository) }
     let(:merge_request) { create(:merge_request, source_project: project) }
+
     subject { merge_request.calculate_reactive_cache(service_class_name) }
 
     context 'when given an unknown service class name' do
@@ -3044,6 +3048,7 @@ describe MergeRequest do
     describe 'transition to cannot_be_merged' do
       let(:notification_service) { double(:notification_service) }
       let(:todo_service) { double(:todo_service) }
+
       subject { create(:merge_request, state, merge_status: :unchecked) }
 
       before do
@@ -3253,6 +3258,7 @@ describe MergeRequest do
     describe 'when merge_when_pipeline_succeeds? is true' do
       describe 'when merge user is author' do
         let(:user) { create(:user) }
+
         subject do
           create(:merge_request,
                  merge_when_pipeline_succeeds: true,
@@ -3267,6 +3273,7 @@ describe MergeRequest do
 
       describe 'when merge user and author are different users' do
         let(:merge_user) { create(:user) }
+
         subject do
           create(:merge_request,
                  merge_when_pipeline_succeeds: true,
diff --git a/spec/models/project_deploy_token_spec.rb b/spec/models/project_deploy_token_spec.rb
index 8c8924762bd..0543bbdf2a8 100644
--- a/spec/models/project_deploy_token_spec.rb
+++ b/spec/models/project_deploy_token_spec.rb
@@ -5,6 +5,7 @@ require 'spec_helper'
 RSpec.describe ProjectDeployToken, type: :model do
   let(:project) { create(:project) }
   let(:deploy_token) { create(:deploy_token) }
+
   subject(:project_deploy_token) { create(:project_deploy_token, project: project, deploy_token: deploy_token) }
 
   it { is_expected.to belong_to :project }
diff --git a/spec/models/project_services/microsoft_teams_service_spec.rb b/spec/models/project_services/microsoft_teams_service_spec.rb
index 275244fa5fd..83d3c8b3a70 100644
--- a/spec/models/project_services/microsoft_teams_service_spec.rb
+++ b/spec/models/project_services/microsoft_teams_service_spec.rb
@@ -38,6 +38,7 @@ describe MicrosoftTeamsService do
 
   describe "#execute" do
     let(:user)    { create(:user) }
+
     set(:project) { create(:project, :repository, :wiki_repo) }
 
     before do
diff --git a/spec/models/project_spec.rb b/spec/models/project_spec.rb
index 99d7e4d156f..e66f37f2eec 100644
--- a/spec/models/project_spec.rb
+++ b/spec/models/project_spec.rb
@@ -165,6 +165,7 @@ describe Project do
       let(:project) { create(:project, :public) }
       let(:requester) { create(:user) }
       let(:developer) { create(:user) }
+
       before do
         project.request_access(requester)
         project.add_developer(developer)
@@ -815,6 +816,7 @@ describe Project do
 
     context 'with external issues tracker' do
       let!(:internal_issue) { create(:issue, project: project) }
+
       before do
         allow(project).to receive(:external_issue_tracker).and_return(true)
       end
@@ -2334,6 +2336,7 @@ describe Project do
 
   describe '#has_remote_mirror?' do
     let(:project) { create(:project, :remote_mirror, :import_started) }
+
     subject { project.has_remote_mirror? }
 
     before do
@@ -2353,6 +2356,7 @@ describe Project do
 
   describe '#update_remote_mirrors' do
     let(:project) { create(:project, :remote_mirror, :import_started) }
+
     delegate :update_remote_mirrors, to: :project
 
     before do
@@ -3460,6 +3464,7 @@ describe Project do
 
   describe '#pipeline_status' do
     let(:project) { create(:project, :repository) }
+
     it 'builds a pipeline status' do
       expect(project.pipeline_status).to be_a(Gitlab::Cache::Ci::ProjectPipelineStatus)
     end
@@ -4638,6 +4643,7 @@ describe Project do
 
   describe '#execute_hooks' do
     let(:data) { { ref: 'refs/heads/master', data: 'data' } }
+
     it 'executes active projects hooks with the specified scope' do
       hook = create(:project_hook, merge_requests_events: false, push_events: true)
       expect(ProjectHook).to receive(:select_active)
@@ -4968,6 +4974,7 @@ describe Project do
 
     context 'when there is a gitlab deploy token associated but is has been revoked' do
       let!(:deploy_token) { create(:deploy_token, :gitlab_deploy_token, :revoked, projects: [project]) }
+
       it { is_expected.to be_nil }
     end
 
@@ -5011,6 +5018,7 @@ describe Project do
 
   context '#members_among' do
     let(:users) { create_list(:user, 3) }
+
     set(:group) { create(:group) }
     set(:project) { create(:project, namespace: group) }
 
diff --git a/spec/models/readme_blob_spec.rb b/spec/models/readme_blob_spec.rb
index f07713bd908..34182fa413f 100644
--- a/spec/models/readme_blob_spec.rb
+++ b/spec/models/readme_blob_spec.rb
@@ -7,6 +7,7 @@ describe ReadmeBlob do
 
   describe 'policy' do
     let(:project) { build(:project, :repository) }
+
     subject { described_class.new(fake_blob(path: 'README.md'), project.repository) }
 
     it 'works with policy' do
diff --git a/spec/models/repository_spec.rb b/spec/models/repository_spec.rb
index c0245dfdf1a..661cbd14427 100644
--- a/spec/models/repository_spec.rb
+++ b/spec/models/repository_spec.rb
@@ -717,6 +717,7 @@ describe Repository do
 
   describe "search_files_by_content" do
     let(:results) { repository.search_files_by_content('feature', 'master') }
+
     subject { results }
 
     it { is_expected.to be_an Array }
diff --git a/spec/models/sent_notification_spec.rb b/spec/models/sent_notification_spec.rb
index 09be90b82ed..7539bf1e957 100644
--- a/spec/models/sent_notification_spec.rb
+++ b/spec/models/sent_notification_spec.rb
@@ -18,6 +18,7 @@ describe SentNotification do
 
       context "when the project doesn't match the discussion project" do
         let(:discussion_id) { create(:note).discussion_id }
+
         subject { build(:sent_notification, in_reply_to_discussion_id: discussion_id) }
 
         it "is invalid" do
@@ -29,6 +30,7 @@ describe SentNotification do
         let(:project) { create(:project, :repository) }
         let(:issue) { create(:issue, project: project) }
         let(:discussion_id) { create(:note, project: project, noteable: issue).discussion_id }
+
         subject { build(:sent_notification, project: project, noteable: issue, in_reply_to_discussion_id: discussion_id) }
 
         it "is valid" do
@@ -196,6 +198,7 @@ describe SentNotification do
   describe '#create_reply' do
     context 'for issue' do
       let(:issue) { create(:issue) }
+
       subject { described_class.record(issue, issue.author.id) }
 
       it 'creates a comment on the issue' do
@@ -206,6 +209,7 @@ describe SentNotification do
 
     context 'for issue comment' do
       let(:note) { create(:note_on_issue) }
+
       subject { described_class.record_note(note, note.author.id) }
 
       it 'creates a comment on the issue' do
@@ -217,6 +221,7 @@ describe SentNotification do
 
     context 'for issue discussion' do
       let(:note) { create(:discussion_note_on_issue) }
+
       subject { described_class.record_note(note, note.author.id) }
 
       it 'creates a reply on the discussion' do
@@ -228,6 +233,7 @@ describe SentNotification do
 
     context 'for merge request' do
       let(:merge_request) { create(:merge_request) }
+
       subject { described_class.record(merge_request, merge_request.author.id) }
 
       it 'creates a comment on the merge_request' do
@@ -238,6 +244,7 @@ describe SentNotification do
 
     context 'for merge request comment' do
       let(:note) { create(:note_on_merge_request) }
+
       subject { described_class.record_note(note, note.author.id) }
 
       it 'creates a comment on the merge request' do
@@ -249,6 +256,7 @@ describe SentNotification do
 
     context 'for merge request diff discussion' do
       let(:note) { create(:diff_note_on_merge_request) }
+
       subject { described_class.record_note(note, note.author.id) }
 
       it 'creates a reply on the discussion' do
@@ -260,6 +268,7 @@ describe SentNotification do
 
     context 'for merge request non-diff discussion' do
       let(:note) { create(:discussion_note_on_merge_request) }
+
       subject { described_class.record_note(note, note.author.id) }
 
       it 'creates a reply on the discussion' do
@@ -272,6 +281,7 @@ describe SentNotification do
     context 'for commit' do
       let(:project) { create(:project, :repository) }
       let(:commit) { project.commit }
+
       subject { described_class.record(commit, project.creator.id) }
 
       it 'creates a comment on the commit' do
@@ -282,6 +292,7 @@ describe SentNotification do
 
     context 'for commit comment' do
       let(:note) { create(:note_on_commit) }
+
       subject { described_class.record_note(note, note.author.id) }
 
       it 'creates a comment on the commit' do
@@ -293,6 +304,7 @@ describe SentNotification do
 
     context 'for commit diff discussion' do
       let(:note) { create(:diff_note_on_commit) }
+
       subject { described_class.record_note(note, note.author.id) }
 
       it 'creates a reply on the discussion' do
@@ -304,6 +316,7 @@ describe SentNotification do
 
     context 'for commit non-diff discussion' do
       let(:note) { create(:discussion_note_on_commit) }
+
       subject { described_class.record_note(note, note.author.id) }
 
       it 'creates a reply on the discussion' do
diff --git a/spec/models/snippet_spec.rb b/spec/models/snippet_spec.rb
index 9c549a6d56d..ae43c0d585a 100644
--- a/spec/models/snippet_spec.rb
+++ b/spec/models/snippet_spec.rb
@@ -141,6 +141,7 @@ describe Snippet do
 
   describe "#content_html_invalidated?" do
     let(:snippet) { create(:snippet, content: "md", content_html: "html", file_name: "foo.md") }
+
     it "invalidates the HTML cache of content when the filename changes" do
       expect { snippet.file_name = "foo.rb" }.to change { snippet.content_html_invalidated? }.from(false).to(true)
     end
diff --git a/spec/models/uploads/fog_spec.rb b/spec/models/uploads/fog_spec.rb
index b93d9449da9..72a169280af 100644
--- a/spec/models/uploads/fog_spec.rb
+++ b/spec/models/uploads/fog_spec.rb
@@ -31,6 +31,7 @@ describe Uploads::Fog do
 
     describe '#keys' do
       let!(:uploads) { create_list(:upload, 2, :object_storage, uploader: FileUploader, model: project) }
+
       subject { data_store.keys(relation) }
 
       it 'returns keys' do
@@ -41,6 +42,7 @@ describe Uploads::Fog do
     describe '#delete_keys' do
       let(:keys) { data_store.keys(relation) }
       let!(:uploads) { create_list(:upload, 2, :with_file, :issuable_upload, model: project) }
+
       subject { data_store.delete_keys(keys) }
 
       before do
diff --git a/spec/models/uploads/local_spec.rb b/spec/models/uploads/local_spec.rb
index 3468399f370..374c3019edc 100644
--- a/spec/models/uploads/local_spec.rb
+++ b/spec/models/uploads/local_spec.rb
@@ -15,6 +15,7 @@ describe Uploads::Local do
 
     describe '#keys' do
       let!(:uploads) { create_list(:upload, 2, uploader: FileUploader, model: project) }
+
       subject { data_store.keys(relation) }
 
       it 'returns keys' do
@@ -25,6 +26,7 @@ describe Uploads::Local do
     describe '#delete_keys' do
       let(:keys) { data_store.keys(relation) }
       let!(:uploads) { create_list(:upload, 2, :with_file, :issuable_upload, model: project) }
+
       subject { data_store.delete_keys(keys) }
 
       it 'deletes multiple data' do
diff --git a/spec/models/user_interacted_project_spec.rb b/spec/models/user_interacted_project_spec.rb
index b96ff08e22d..e2c485343ae 100644
--- a/spec/models/user_interacted_project_spec.rb
+++ b/spec/models/user_interacted_project_spec.rb
@@ -11,6 +11,7 @@ describe UserInteractedProject do
     Event::ACTIONS.each do |action|
       context "for all actions (event types)" do
         let(:event) { build(:event, action: action) }
+
         it 'creates a record' do
           expect { subject }.to change { described_class.count }.from(0).to(1)
         end
diff --git a/spec/models/user_spec.rb b/spec/models/user_spec.rb
index 749d80ebfc2..314cc4e1d3c 100644
--- a/spec/models/user_spec.rb
+++ b/spec/models/user_spec.rb
@@ -2390,6 +2390,7 @@ describe User, :do_not_mock_admin_mode do
 
   describe '#authorizations_for_projects' do
     let!(:user) { create(:user) }
+
     subject { Project.where("EXISTS (?)", user.authorizations_for_projects) }
 
     it 'includes projects that belong to a user, but no other projects' do
@@ -3686,6 +3687,7 @@ describe User, :do_not_mock_admin_mode do
 
   describe '#required_terms_not_accepted?' do
     let(:user) { build(:user) }
+
     subject { user.required_terms_not_accepted? }
 
     context "when terms are not enforced" do
diff --git a/spec/rubocop/cop/migration/add_column_with_default_spec.rb b/spec/rubocop/cop/migration/add_column_with_default_spec.rb
new file mode 100644
index 00000000000..3d2315ddfa1
--- /dev/null
+++ b/spec/rubocop/cop/migration/add_column_with_default_spec.rb
@@ -0,0 +1,65 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+require 'rubocop'
+require 'rubocop/rspec/support'
+
+require_relative '../../../../rubocop/cop/migration/add_column_with_default'
+
+describe RuboCop::Cop::Migration::AddColumnWithDefault do
+  include CopHelper
+
+  let(:cop) { described_class.new }
+
+  context 'outside of a migration' do
+    it 'does not register any offenses' do
+      expect_no_offenses(<<~RUBY)
+        def up
+          add_reference(:projects, :users)
+        end
+      RUBY
+    end
+  end
+
+  context 'in a migration' do
+    before do
+      allow(cop).to receive(:in_migration?).and_return(true)
+    end
+
+    let(:offense) { '`add_column_with_default` with `allow_null: false` may cause prolonged lock situations and downtime, see https://gitlab.com/gitlab-org/gitlab/issues/38060' }
+
+    it 'registers an offense when specifying allow_null: false' do
+      expect_offense(<<~RUBY)
+        def up
+          add_column_with_default(:ci_build_needs, :artifacts, :boolean, default: true, allow_null: false)
+          ^^^^^^^^^^^^^^^^^^^^^^^ #{offense}
+        end
+      RUBY
+    end
+
+    it 'registers no offense when specifying allow_null: true' do
+      expect_no_offenses(<<~RUBY)
+        def up
+          add_column_with_default(:ci_build_needs, :artifacts, :boolean, default: true, allow_null: true)
+        end
+      RUBY
+    end
+
+    it 'registers no offense when allow_null is not specified' do
+      expect_no_offenses(<<~RUBY)
+        def up
+          add_column_with_default(:ci_build_needs, :artifacts, :boolean, default: true)
+        end
+      RUBY
+    end
+
+    it 'registers no offense for application_settings (whitelisted table)' do
+      expect_no_offenses(<<~RUBY)
+        def up
+          add_column_with_default(:application_settings, :another_column, :boolean, default: true, allow_null: false)
+        end
+      RUBY
+    end
+  end
+end