Gemfile in slaver-0.2.0 vs Gemfile in slaver-0.2.2

@@ -1,8 +1,14 @@
 source 'https://rubygems.org'
 
 gemspec
 
-if RUBY_VERSION < '2'
-  gem 'mime-types', '< 3.0'
-  gem 'json', '< 2.0'
+group :test do
+  if RUBY_VERSION < '2'
+    gem 'mime-types', '< 3.0'
+    gem 'json', '< 2.0'
+    gem 'nokogiri', '< 1.7.0'
+  else
+    gem 'test-unit'
+    gem 'pry-byebug'
+  end
 end