Changes suggested by Robert

app/mailers/repository_check_mailer.rb

 class RepositoryCheckMailer < BaseMailer
-  include ActionView::Helpers::TextHelper
-
   def notify(failed_count)
     if failed_count == 1
       @message = "One project failed its last repository check"

app/views/admin/application_settings/_form.html.haml

@@ -287,7 +287,7 @@
       .col-sm-offset-2.col-sm-10
         = link_to 'Clear all repository checks', clear_repository_check_states_admin_application_settings_path, data: { confirm: 'This will clear repository check states for ALL projects in the database. This cannot be undone. Are you sure?' }, method: :put, class: "btn btn-sm btn-remove"
         .help-block
-          If you got a lot of false alarms from repository checks (maybe your fileserver was temporarily unavailable) you can choose to clear all repository check information from the database.
+          If you got a lot of false alarms from repository checks you can choose to clear all repository check information from the database.
  
 
   .form-actions

app/workers/repository_check_worker.rb

@@ -17,7 +17,7 @@ class RepositoryCheckWorker
       break if Time.now - start >= RUN_TIME
       break unless current_settings.repository_checks_enabled
 
-      next if !try_obtain_lease(project_id)
+      next unless try_obtain_lease(project_id)
 
       SingleRepositoryCheckWorker.new.perform(project_id)
     end

spec/workers/repository_check_worker_spec.rb

@@ -4,7 +4,7 @@ describe RepositoryCheckWorker do
   subject { RepositoryCheckWorker.new }
 
   it 'prefers projects that have never been checked' do
-    projects = 3.times.map { create(:project) }
+    projects = create_list(:project, 3)
     projects[0].update_column(:last_repository_check_at, 1.month.ago)
     projects[2].update_column(:last_repository_check_at, 3.weeks.ago)
 
@@ -12,7 +12,7 @@ describe RepositoryCheckWorker do
   end
 
   it 'sorts projects by last_repository_check_at' do
-    projects = 3.times.map { create(:project) }
+    projects = create_list(:project, 3)
     projects[0].update_column(:last_repository_check_at, 2.weeks.ago)
     projects[1].update_column(:last_repository_check_at, 1.month.ago)
     projects[2].update_column(:last_repository_check_at, 3.weeks.ago)
@@ -21,7 +21,7 @@ describe RepositoryCheckWorker do
   end
 
   it 'excludes projects that were checked recently' do
-    projects = 3.times.map { create(:project) }
+    projects = create_list(:project, 3)
     projects[0].update_column(:last_repository_check_at, 2.days.ago)
     projects[1].update_column(:last_repository_check_at, 1.month.ago)
     projects[2].update_column(:last_repository_check_at, 3.days.ago)