Monkeypatch to add 3 decimal places to 'Code to Test Ratio' in rake stats

Monkeypatch to add 3 decimal places to 'Code to Test Ratio' in rake stats

# Monkey patch to add 3 decimal places to code/test ratio
# Add to rakefile
Rake::TaskManager.class_eval do
  def remove_task(task_name)
    @tasks.delete(task_name.to_s)
  end
end
 
def remove_task(task_name)
  Rake.application.remove_task(task_name)
end
 
remove_task :stats
task :stats => [ :environment ] do
  require 'code_statistics'

  class CodeStatistics
    alias to_s_old to_s
    def to_s
      print_header
      @pairs.each { |pair| print_line(pair.first, @statistics[pair.first]) }
      print_splitter

      if @total
        print_line("Total", @total)
        print_splitter
      end

      code = calculate_code
      tests = calculate_tests

      puts "  Code LOC: #{code} Test LOC: #{tests} Code to Test Ratio: 1:#{sprintf("%.3f", tests.to_f/code)}"
      puts ""
    end
  end

  CodeStatistics.new(
    ["Controllers", "app/controllers"], 
    ["Helpers", "app/helpers"], 
    ["Models", "app/models"],
    ["Libraries", "lib/"],
    ["Functionals", "test/functional"],
    ["Units", "test/unit"]
  ).to_s
end