module ParallelTests

def self.bundler_enabled?
  return true if Object.const_defined?(:Bundler)
  previous = nil
  current = File.expand_path(Dir.pwd)
  until !File.directory?(current) || current == previous
    filename = File.join(current, "Gemfile")
    return true if File.exists?(filename)
    current, previous = File.expand_path("..", current), current
  end
  false
end

def self.determine_number_of_processes(count)
  [
    count,
    ENV['PARALLEL_TEST_PROCESSORS'],
    Parallel.processor_count
  ].detect{|c| not c.to_s.strip.empty? }.to_i
end