Merge branch '51268-clear-in-memory-application-settings-between-examples' into 'master'

Resolve "Changes in in-memory application settings in one spec can break another spec"

Closes #51268

See merge request gitlab-org/gitlab-ce!21638

lib/gitlab/current_settings.rb

@@ -13,6 +13,10 @@ module Gitlab
         Gitlab::FakeApplicationSettings.new(::ApplicationSetting.defaults.merge(attributes || {}))
       end
 
+      def clear_in_memory_application_settings!
+        @in_memory_application_settings = nil
+      end
+
       def method_missing(name, *args, &block)
         current_application_settings.send(name, *args, &block) # rubocop:disable GitlabSecurity/PublicSend
       end

lib/gitlab/fake_application_settings.rb

@@ -11,6 +11,10 @@ module Gitlab
       FakeApplicationSettings.define_predicate_methods(options)
     end
 
+    def pick_repository_storage
+      repository_storages.sample
+    end
+
     # Mimic ActiveRecord predicate methods for boolean values
     def self.define_predicate_methods(options)
       options.each do |key, value|

spec/spec_helper.rb

@@ -135,6 +135,10 @@ RSpec.configure do |config|
     Fog.unmock! if Fog.mock?
   end
 
+  config.after(:example) do
+    Gitlab::CurrentSettings.clear_in_memory_application_settings!
+  end
+
   config.before(:example, :mailer) do
     reset_delivered_emails!
   end