Gemfile in serial-spec-0.2.0 vs Gemfile in serial-spec-0.2.1

@@ -1,14 +1,20 @@
 source 'https://rubygems.org'
 
-group :development do
+group :development, :test do
   gem "bundler",           "~> 1.8"
-  gem "byebug"
   gem "rake",              "~> 10.0"
 end
 
+group :development do
+  gem "appraisal"
+  gem "byebug"
+  gem "pry"
+end
+
 group :test do
-  gem "rack-test",         "~> 0.6.3"
+  gem "rack-test",        "~> 0.6.3"
   gem "rspec",             "~> 3.2"
+end
 
 # Specify your gem's dependencies in serial-spec.gemspec
 gemspec