module ParallelTest::CLI

def self.report_number_of_tests(runner, groups)
  name = runner.test_file_name
  num_processes = groups.size
  num_tests = groups.map(&:size).inject(:+)
  puts "#{num_processes} processes for #{num_tests} #{name}s, ~ #{num_tests / groups.size} #{name}s per process"
end