```ruby
module Serverspec
  module Type
    class Service
      def initialize name
        @name = name
      end

      def enabled?
        backend.check_enabled(nil, @name)
      end

      def running? under
        if under
          check_method = "check_running_under_#{under}".to_sym

          unless backend.respond_to?(check_method)
            raise ArgumentError.new("`be_running` matcher doesn't support #{@under}")
          end

          backend.send(check_method, nil, @name)
        else
          backend.check_running(nil, @name)
        end
      end

    end
  end
end
```

Add to_s for readability of results of specs
user
```ruby
module Serverspec
  module Type
    class Service
      def initialize name
        @name = name
      end

      def enabled?
        backend.check_enabled(nil, @name)
      end

      def running? under
        if under
          check_method = "check_running_under_#{under}".to_sym

          unless backend.respond_to?(check_method)
            raise ArgumentError.new("`be_running` matcher doesn't support #{@under}")
          end

          backend.send(check_method, nil, @name)
        else
          backend.check_running(nil, @name)
        end
      end

      def to_s
        "Service #{@name}"
      end
    end
  end
end
```
assistant