diff --git a/.github/workflows/ruby.yml b/.github/workflows/ruby.yml
index c8c41fbc..b5f752f6 100644
--- a/.github/workflows/ruby.yml
+++ b/.github/workflows/ruby.yml
@@ -71,3 +71,5 @@ jobs:
         run: bundle exec rubocop
       - name: run spec
         run: bin/rails spec
+      - name: run spec for bess
+        run: cd gems/bess && rake spec
diff --git a/gems/bess/Gemfile b/gems/bess/Gemfile
index 20fd9eb8..09e2a8e2 100644
--- a/gems/bess/Gemfile
+++ b/gems/bess/Gemfile
@@ -1,4 +1,6 @@
+# frozen_string_literal: true
+
 source 'https://rubygems.org'
 
 # Specify your gem's dependencies in bess.gemspec
-gemspec
\ No newline at end of file
+gemspec
diff --git a/gems/bess/Rakefile b/gems/bess/Rakefile
index 3d1395e4..d216099f 100644
--- a/gems/bess/Rakefile
+++ b/gems/bess/Rakefile
@@ -6,4 +6,30 @@ require "bundler/setup"
 
 load "rails/tasks/statistics.rake"
 
-require "bundler/gem_tasks"
\ No newline at end of file
+require "bundler/gem_tasks"
+
+begin
+  require 'bundler/gem_tasks'
+rescue LoadError
+  nil
+end
+
+require 'rubygems'
+require 'bundler'
+require 'rdoc/task'
+begin
+  Bundler.setup(:default, :development)
+rescue Bundler::BundlerError => e
+  $stderr.puts e.message
+  $stderr.puts "Run `bundle install` to install missing gems"
+  exit e.status_code
+end
+require 'rake'
+
+require 'rspec/core'
+require 'rspec/core/rake_task'
+RSpec::Core::RakeTask.new(:spec) do |spec|
+  spec.pattern = FileList['spec/**/*_spec.rb']
+end
+
+task :default => :spec
diff --git a/gems/bess/bin/rspec b/gems/bess/bin/rspec
new file mode 100755
index 00000000..a6c78521
--- /dev/null
+++ b/gems/bess/bin/rspec
@@ -0,0 +1,29 @@
+#!/usr/bin/env ruby
+# frozen_string_literal: true
+
+#
+# This file was generated by Bundler.
+#
+# The application 'rspec' is installed as part of a gem, and
+# this file is here to facilitate running it.
+#
+
+require "pathname"
+ENV["BUNDLE_GEMFILE"] ||= File.expand_path("../../Gemfile",
+  Pathname.new(__FILE__).realpath)
+
+bundle_binstub = File.expand_path("../bundle", __FILE__)
+
+if File.file?(bundle_binstub)
+  if File.read(bundle_binstub, 300) =~ /This file was generated by Bundler/
+    load(bundle_binstub)
+  else
+    abort("Your `bin/bundle` was not generated by Bundler, so this binstub cannot run.
+Replace `bin/bundle` by running `bundle binstubs bundler --force`, then run this command again.")
+  end
+end
+
+require "rubygems"
+require "bundler/setup"
+
+load Gem.bin_path("rspec-core", "rspec")
diff --git a/gems/bess/spec/rails_helper.rb b/gems/bess/spec/rails_helper.rb
index ea0acc5f..186f6ce0 100644
--- a/gems/bess/spec/rails_helper.rb
+++ b/gems/bess/spec/rails_helper.rb
@@ -1,9 +1,11 @@
+# frozen_string_literal: true
+
 # This file is copied to spec/ when you run 'rails generate rspec:install'
 require 'spec_helper'
 ENV['RAILS_ENV'] ||= 'test'
-#require File.expand_path('../config/environment', __dir__)
+# require File.expand_path('../config/environment', __dir__)
 # Prevent database truncation if the environment is production
-abort("The Rails environment is running in production mode!") if Rails.env.production?
+abort('The Rails environment is running in production mode!') if Rails.env.production?
 require 'rspec/rails'
 # Add additional requires below this line. Rails is not loaded until this point!
 
@@ -23,33 +25,33 @@ require 'rspec/rails'
 # Dir[Rails.root.join('spec', 'support', '**', '*.rb')].sort.each { |f| require f }
 
 RSpec.configure do |config|
-  # Remove this line to enable support for ActiveRecord
-  config.use_active_record = false
+	# Remove this line to enable support for ActiveRecord
+	config.use_active_record = false
 
-  # If you enable ActiveRecord support you should unncomment these lines,
-  # note if you'd prefer not to run each example within a transaction, you
-  # should set use_transactional_fixtures to false.
-  #
-  # config.fixture_path = "#{::Rails.root}/spec/fixtures"
-  # config.use_transactional_fixtures = true
+	# If you enable ActiveRecord support you should unncomment these lines,
+	# note if you'd prefer not to run each example within a transaction, you
+	# should set use_transactional_fixtures to false.
+	#
+	# config.fixture_path = "#{::Rails.root}/spec/fixtures"
+	# config.use_transactional_fixtures = true
 
-  # RSpec Rails can automatically mix in different behaviours to your tests
-  # based on their file location, for example enabling you to call `get` and
-  # `post` in specs under `spec/controllers`.
-  #
-  # You can disable this behaviour by removing the line below, and instead
-  # explicitly tag your specs with their type, e.g.:
-  #
-  #     RSpec.describe UsersController, type: :controller do
-  #       # ...
-  #     end
-  #
-  # The different available types are documented in the features, such as in
-  # https://relishapp.com/rspec/rspec-rails/docs
-  config.infer_spec_type_from_file_location!
+	# RSpec Rails can automatically mix in different behaviours to your tests
+	# based on their file location, for example enabling you to call `get` and
+	# `post` in specs under `spec/controllers`.
+	#
+	# You can disable this behaviour by removing the line below, and instead
+	# explicitly tag your specs with their type, e.g.:
+	#
+	#     RSpec.describe UsersController, type: :controller do
+	#       # ...
+	#     end
+	#
+	# The different available types are documented in the features, such as in
+	# https://relishapp.com/rspec/rspec-rails/docs
+	config.infer_spec_type_from_file_location!
 
-  # Filter lines from Rails gems in backtraces.
-  config.filter_rails_from_backtrace!
-  # arbitrary gems may also be filtered via:
-  # config.filter_gems_from_backtrace("gem name")
+	# Filter lines from Rails gems in backtraces.
+	config.filter_rails_from_backtrace!
+	# arbitrary gems may also be filtered via:
+	# config.filter_gems_from_backtrace("gem name")
 end