# File lib/minitest/spec.rb, line 20
  def infect_with_assertions(pos_prefix, neg_prefix,
                             skip_re,
                             dont_flip_re = /\cc0/,
                             map = {})
    MiniTest::Assertions.public_instance_methods(false).each do |meth|
      meth = meth.to_s

      new_name = case meth
                 when /^assert/ then
                   meth.sub(/^assert/, pos_prefix.to_s)
                 when /^refute/ then
                   meth.sub(/^refute/, neg_prefix.to_s)
                 end
      next unless new_name
      next if new_name =~ skip_re

      regexp, replacement = map.find { |re, _| new_name =~ re }
      new_name.sub! regexp, replacement if replacement

      infect_an_assertion meth, new_name, new_name =~ dont_flip_re
    end
  end