class RSpec::Support::ObjectFormatter

def format(object)
  if max_formatted_output_length.nil?
    prepare_for_inspection(object).inspect
  else
    formatted_object = prepare_for_inspection(object).inspect
    if formatted_object.length < max_formatted_output_length
      formatted_object
    else
      beginning = truncate_string formatted_object, 0, max_formatted_output_length / 2
      ending = truncate_string formatted_object, -max_formatted_output_length / 2, -1
      beginning + ELLIPSIS + ending
    end
  end
end