    # File lib/chef/provider/service/simple.rb, line 54
            def define_resource_requirements
              # FIXME? need reload from service.rb
              shared_resource_requirements
              requirements.assert(:start) do |a|
                a.assertion { @new_resource.start_command }
                a.failure_message Chef::Exceptions::Service, "#{self.to_s} requires that start_command be set"
              end
              requirements.assert(:stop) do |a|
                a.assertion { @new_resource.stop_command }
                a.failure_message Chef::Exceptions::Service, "#{self.to_s} requires that stop_command be set"
              end

              requirements.assert(:restart) do |a|
                a.assertion { @new_resource.restart_command  || ( @new_resource.start_command && @new_resource.stop_command ) }
                a.failure_message Chef::Exceptions::Service, "#{self.to_s} requires a restart_command or both start_command and stop_command be set in order to perform a restart"
              end

              requirements.assert(:reload) do |a|
                a.assertion { @new_resource.reload_command }
                a.failure_message Chef::Exceptions::UnsupportedAction, "#{self.to_s} requires a reload_command be set in order to perform a reload"
              end

              requirements.assert(:all_actions) do |a|
                a.assertion { @new_resource.status_command or @new_resource.supports[:status] or
                  (!ps_cmd.nil? and !ps_cmd.empty?) }
                a.failure_message Chef::Exceptions::Service, "#{@new_resource} could not determine how to inspect the process table, please set this node's 'command.ps' attribute"
              end
              requirements.assert(:all_actions) do |a|
                a.assertion { !@ps_command_failed }
                a.failure_message Chef::Exceptions::Service, "Command #{ps_cmd} failed to execute, cannot determine service current status"
              end
            end