# File lib/test/unit/attribute.rb, line 52
        def set_attributes(method_name, new_attributes)
          return if new_attributes.empty?
          method_name = normalize_method_name(method_name)
          @attributes_table ||= {}
          @attributes_table[method_name] ||= {}
          current_attributes = @attributes_table[method_name]
          new_attributes.each do |key, value|
            key = normalize_attribute_name(key)
            observers = attribute_observers(key) || []
            observers.each do |observer|
              observer.call(self,
                            key,
                            (attributes(method_name) || {})[key],
                            value,
                            method_name)
            end
            current_attributes[key] = value
          end
        end