Gemfile in message_bus-2.2.0.pre.1 vs Gemfile in message_bus-2.2.0.pre.2

@@ -9,9 +9,14 @@
   gem 'rake'
   gem 'http_parser.rb'
   gem 'thin'
   gem 'rack-test', require: 'rack/test'
   gem 'jasmine'
+  gem 'puma'
+end
+
+group :test, :development do
+  gem 'byebug'
 end
 
 gem 'rack'
 gem 'concurrent-ruby' # for distributed-cache