    # File lib/chef/provider/group/groupadd.rb, line 34
            def define_resource_requirements
              super
              required_binaries.each do |required_binary|
                requirements.assert(:all_actions) do |a|
                  a.assertion { ::File.exists?(required_binary) }
                  a.failure_message Chef::Exceptions::Group, "Could not find binary #{required_binary} for #{@new_resource}"
                  # No whyrun alternative: this component should be available in the base install of any given system that uses it
                end
              end
            end