diff --git a/config/application.rb b/config/application.rb
index 98b8077..ea7c038 100644
--- a/config/application.rb
+++ b/config/application.rb
@@ -30,5 +30,8 @@ module SkillAssessmentApp
       g.helper false
       g.routes false
     end
+
+    # let's use lib/utils for dev only utility classes & helpers
+    config.autoload_paths << "#{Rails.root}/lib/utils"
   end
 end
diff --git a/lib/tasks/faker.rake b/lib/tasks/faker.rake
deleted file mode 100644
index 1d27021..0000000
--- a/lib/tasks/faker.rake
+++ /dev/null
@@ -1,10 +0,0 @@
-# frozen_string_literal: true
-namespace :faker do
-  desc "Generates 10 fake candidates with results."
-  task results: :environment do
-    puts "Not for production use" and return if Rails.env == "production"
-
-    faker = FakeQuiz.new
-    faker.create_completed_quizzes 10
-  end
-end
diff --git a/app/services/fake_quiz.rb b/lib/utils/fake_quiz.rb
similarity index 98%
rename from app/services/fake_quiz.rb
rename to lib/utils/fake_quiz.rb
index 6929504..835305f 100644
--- a/app/services/fake_quiz.rb
+++ b/lib/utils/fake_quiz.rb
@@ -1,5 +1,4 @@
 # frozen_string_literal: true
-# :nocov:
 class FakeQuiz
   def create_completed_quizzes num = 10
     num.times do
@@ -68,4 +67,3 @@ class FakeQuiz
       end
     end # rubocop:enable Metrics/MethodLength
 end
-# :nocov:
diff --git a/test/test_helper.rb b/test/test_helper.rb
index 108c430..275642d 100644
--- a/test/test_helper.rb
+++ b/test/test_helper.rb
@@ -8,6 +8,8 @@ SimpleCov.start 'rails' do
   add_group 'Services & Workers', %w(app/workers app/services)
   add_group "Jobs", 'app/jobs'
   add_group "Policies", 'app/policies'
+
+  add_filter "/lib/utils/" # no need to test dev only utility classes
 end
 
 require File.expand_path('../../config/environment', __FILE__)