    # File lib/chef/provider/package/rubygems.rb, line 383
            def target_version_already_installed?
              return false unless @current_resource && @current_resource.version
              return false if @current_resource.version.nil?
              # in the future we could support squiggly requirements like "~> 1.2.0"
              # for now, the behavior when using anything other than exact
              # requirements is undefined.
              Gem::Requirement.new(@new_resource.version).satisfied_by?(Gem::Version.new(@current_resource.version))
            end