simplecov for rails

coverage.diff

diff --git a/.gitignore b/.gitignore
index e2aa052..9a467fb 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,12 +5,12 @@
 #   git config --global core.excludesfile ~/.gitignore_global
 
 # Ignore bundler config
-/.bundle
+.bundle/
 
 # Ignore the default SQLite database.
-/db/*.sqlite3
+db/*.sqlite3
 
 # Ignore all logfiles and tempfiles.
-/log/*.log
-/tmp
-/.redcar/
\ No newline at end of file
+log/*.log
+tmp/
+coverage/
diff --git a/Gemfile b/Gemfile
index f3b99cb..a4730bd 100644
--- a/Gemfile
+++ b/Gemfile
@@ -29,3 +29,6 @@ group :test do
   gem 'database_cleaner'
 end
 
+group :coverage do
+  gem 'simplecov', require: false
+end
diff --git a/Gemfile.lock b/Gemfile.lock
index 311863e..5a16234 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -54,6 +54,7 @@ GEM
       rails (>= 3.0.0)
     database_cleaner (1.2.0)
     diff-lcs (1.2.5)
+    docile (1.1.2)
     erubis (2.7.0)
     execjs (2.0.2)
     factory_girl (4.3.0)
@@ -129,6 +130,11 @@ GEM
     rdoc (3.12.2)
       json (~> 1.4)
     ref (1.0.5)
+    simplecov (0.8.2)
+      docile (~> 1.1.0)
+      multi_json
+      simplecov-html (~> 0.8.0)
+    simplecov-html (0.8.0)
     slop (3.4.7)
     sprockets (2.2.2)
       hike (~> 1.2)
@@ -172,6 +178,7 @@ DEPENDENCIES
   mocha
   pry
   rails (= 3.2.16)
+  simplecov
   sqlite3
   therubyracer
   twitter-bootstrap-rails
diff --git a/features/support/env.rb b/features/support/env.rb
index be4056a..e0165fd 100644
--- a/features/support/env.rb
+++ b/features/support/env.rb
@@ -1,3 +1,8 @@
+unless ENV["COVERAGE"].nil?
+  require 'simplecov'
+  SimpleCov.start 'rails'
+end
+
 # IMPORTANT: This file is generated by cucumber-rails - edit at your own peril.
 # It is recommended to regenerate this file in the future when you upgrade to a
 # newer version of cucumber-rails. Consider adding your own code to a new file
diff --git a/lib/tasks/coverage.rake b/lib/tasks/coverage.rake
new file mode 100644
index 0000000..9aac6f5
--- /dev/null
+++ b/lib/tasks/coverage.rake
@@ -0,0 +1,7 @@
+task :coverage do
+  ENV["COVERAGE"] = "true"
+  `rm -r coverage`
+  at_exit do
+    `open coverage/index.html`
+  end
+end
diff --git a/test/test_helper.rb b/test/test_helper.rb
index 1ffcf40..bdf7df6 100644
--- a/test/test_helper.rb
+++ b/test/test_helper.rb
@@ -1,3 +1,8 @@
+unless ENV["COVERAGE"].nil?
+  require 'simplecov'
+  SimpleCov.start 'rails'
+end
+
 ENV["RAILS_ENV"] = "test"
 require File.expand_path('../../config/environment', __FILE__)
 require 'rails/test_help'

execute.sh

rake coverage default
# or
rake coverage test cucumber