global

def nyan_trail
  marks = @example_results.each_with_index.map{ |mark, i| highlight(mark) * example_width(i) }
  marks.shift(current_width - terminal_width) if current_width >= terminal_width
  nyan_cat_lines = nyan_cat.split("\n").each_with_index.map do |line, index|
    format("%s#{line}", marks.join)
  end.join("\n")
end