Ruby profiling rake task

rubyprof.rake

require 'ruby-prof'
require 'ruby-prof/task'

RubyProf::ProfileTask.new(:integration) do |t|
  t.test_files = FileList['test/integration/**/patients_test.rb']
  t.output_dir = File.join(Rails.root, 'tmp')
  t.printer = :graph_html
  t.min_percent = 10
end