# File lib/minitest/spec.rb, line 6
  def infect_with_assertions pos_prefix, neg_prefix, skip_re, 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

      # warn "%-22p -> %p %p" % [meth, new_name, regexp]
      self.class_eval "def \#{new_name} *args, &block\nreturn MiniTest::Spec.current.\#{meth}(*args, &self)     if Proc === self\nreturn MiniTest::Spec.current.\#{meth}(args.first, self) if args.size == 1\nreturn MiniTest::Spec.current.\#{meth}(self, *args)\nend\n"
    end
  end