Install rcov

.gitignore

@@ -5,6 +5,7 @@
 db/*.sqlite3
 db/*.sqlite3-journal
 doc/*
+coverage/*
 log/*.log
 pkg/*
 spec/dummy_app/db/schema.rb

Gemfile.lock

@@ -85,6 +85,7 @@ GEM
       rake (>= 0.8.4)
       thor (~> 0.14.0)
     rake (0.8.7)
+    rcov (0.9.9)
     rspec (2.0.1)
       rspec-core (~> 2.0.1)
       rspec-expectations (~> 2.0.1)
@@ -114,6 +115,7 @@ DEPENDENCIES
   dummy_data (~> 0.9)
   rails (~> 3.0.1)
   rails_admin!
+  rcov (~> 0.9)
   rspec-rails (~> 2.0)
   sqlite3-ruby (~> 1.3)
   webrat!

Rakefile

@@ -10,6 +10,16 @@ require 'bundler'
 
 Bundler::GemHelper.install_tasks
 Rspec::Core::RakeTask.new(:spec)
+namespace :spec do
+  desc "Run all examples using rcov"
+  RSpec::Core::RakeTask.new(:rcov => :cleanup_rcov_files) do |task|
+    task.rcov = true
+    task.rcov_opts = %[-Ilib -Ispec --exclude ".bundler/*,gems/*,features,specs" --text-report --sort coverage]
+  end
+end
 
-desc 'Run RSpec code examples'
-task :default => :spec
+task :cleanup_rcov_files do
+  rm_rf 'coverage'
+end
+
+task :default => ["spec:rcov"]

rails_admin.gemspec

@@ -3,6 +3,7 @@ require File.expand_path("../lib/rails_admin/version", __FILE__)
 
 Gem::Specification.new do |s|
   s.add_development_dependency("dummy_data", ["~> 0.9"])
+  s.add_development_dependency("rcov", ["~> 0.9"])
   s.add_development_dependency("rspec-rails", ["~> 2.0"])
   s.add_development_dependency("sqlite3-ruby", ["~> 1.3"])
   s.add_development_dependency("devise", ["~> 1.1.0"])