Gemfile in statesman-1.2.0 vs Gemfile in statesman-1.2.1

@@ -1,5 +1,10 @@
 source 'https://rubygems.org'
 
 gemspec
 
 gem "rails", "~> #{ENV["RAILS_VERSION"]}" if ENV["RAILS_VERSION"]
+
+# test/unit is no longer bundled with Ruby 2.2, but required by Rails
+if Gem::Version.new(RUBY_VERSION) >= Gem::Version.new("2.2.0")
+  gem "test-unit", "~> 3.0"
+end