diff --git a/Gemfile b/Gemfile
index 6fd98a28b..ac23c5664 100644
--- a/Gemfile
+++ b/Gemfile
@@ -61,3 +61,6 @@ gem 'mysql2'
 # event machine
 gem 'eventmachine'
 gem 'em-websocket'
+
+# code coverage
+gem 'simplecov'
diff --git a/test/test_helper.rb b/test/test_helper.rb
index 259170548..e0bdaa04a 100644
--- a/test/test_helper.rb
+++ b/test/test_helper.rb
@@ -1,12 +1,14 @@
 ENV["RAILS_ENV"] = "test"
 require File.expand_path('../../config/environment', __FILE__)
 require 'rails/test_help'
+require 'simplecov'
 
 class ActiveSupport::TestCase
   # Setup all fixtures in test/fixtures/*.(yml|csv) for all tests in alphabetical order.
   #
   # Note: You'll currently still have to declare fixtures explicitly in integration tests
   # -- they do not yet inherit this setting
+  SimpleCov.start
   fixtures :all
 
   # load seeds