Gemfile in rack-simple_user_agent-0.4.0 vs Gemfile in rack-simple_user_agent-0.5.0

@@ -1,4 +1,14 @@
+# frozen_string_literal: true
+
 source 'https://rubygems.org'
 
 # Specify your gem's dependencies in rack-simple_user_agent.gemspec
 gemspec
+
+gem 'coveralls'
+gem 'minitest', '~> 5.0'
+gem 'minitest-reporters'
+gem 'rack-test'
+gem 'rake'
+gem 'rubocop'
+gem 'rubocop-minitest'