Rakefile in closure_tree-1.0.0 vs Rakefile in closure_tree-2.0.0.beta1

@@ -2,24 +2,16 @@
   require 'bundler/setup'
 rescue LoadError
   puts 'You must `gem install bundler` and `bundle install` to run rake tasks'
 end
 
-Bundler::GemHelper.install_tasks
-
 require 'yard'
-
 YARD::Rake::YardocTask.new do |t|
-t.files = ['lib/**/*.rb', 'README.md']
+  t.files = ['lib/**/*.rb', 'README.md']
 end
 
-require 'rake/testtask'
+Bundler::GemHelper.install_tasks
 
-Rake::TestTask.new(:test) do |t|
-  t.libs << 'lib'
-  t.libs << 'test'
-  t.pattern = 'test/**/*_test.rb'
-  t.verbose = false
-end
+require "rspec/core/rake_task"
+RSpec::Core::RakeTask.new(:spec)
 
-
-task :default => :test
+task :default => :spec