Possible Go RSS formatter

rss.go

package rss

import "encoding/xml"

type Channel struct {
	XMLName xml.Name `xml:"channel"`
	Title string `xml:"title"`
	Description string `xml:"description"`
	Link string `xml:"url"`
	LastBuildDate string `xml:"lastBuildDate"`
	PubDate string `xml:"pubDate"`
	TTL int `xml:"ttl"`
	Items []Item
}

type Item struct {
	XMLName xml.Name `xml:"item"`
	Title string `xml:"title"`
	Description string `xml:"description"`
	Link string `xml:"url"`
	GUID string `xml:"guid"`
	PubDate string `xml:"pubDate"`
}

type RSS struct {
	XMLName xml.Name `xml:"rss"`
	Version float64 `xml:"version,attr"`
	Channel Channel
}

func BuildRSS(r *RSS) ([]byte, error) {
	return xml.Marshal(r)
}

rss_test.go

package rss

import (
	"testing"
	"time"
	"code.google.com/p/tcgl/identifier"
)

func TestEmpty(t *testing.T) {
	if _, e := BuildRSS(&RSS{}); e != nil {
		t.Error(e)
	}
}

func TestRSS(t *testing.T) {
	var rss = &RSS{
		Version: 2.0,
		Channel: Channel{
			Title: "Test RSS",
			Description: "This is an example RSS",
			Link: "http://www.some-syndication.com/",
			LastBuildDate: time.Now().Format(time.RFC1123Z),
			PubDate :time.Now().Format(time.RFC1123Z),
			TTL: 1800,
			Items: []Item{
				{
					Title: "Some great information here",
					Description: "This was a second example post",
					Link:"http://www.some-syndication.com/post2",
					GUID: identifier.NewUUID().String(),
					PubDate:time.Now().Format(time.RFC1123Z),
				}, {
					Title: "Hello, World!",
					Description: "This was the first post, hello world!",
					Link:"http://www.some-syndication.com/post1",
					GUID: identifier.NewUUID().String(),
					PubDate:time.Now().Format(time.RFC1123Z),
				},
			},
		},
	}

	if _, e := BuildRSS(rss); e != nil {
		t.Error(e)
	}
}