class ParallelTests::CLI

def report_number_of_tests(groups)
  name = @runner.test_file_name
  num_processes = groups.size
  num_tests = groups.map(&:size).inject(0, :+)
  tests_per_process = (num_processes == 0 ? 0 : num_tests / num_processes)
  puts "#{num_processes} processes for #{num_tests} #{name}s, ~ #{tests_per_process} #{name}s per process"
end