func openEntry(cache *cdc.DiskCache, url, addr, dir string) *cdc.Entry {
var entry *cdc.Entry
var err error
if addr != "" {
id, era := strconv.ParseUint(addr, 10, 32)
if era != nil {
log.Fatal(era)
}
entry, err = cdc.OpenEntry(cdc.CacheAddr(id), dir)
} else if url != "" {
entry, err = cache.OpenURL(url)
}
if err != nil {
log.Fatal(err)
}
return entry
}
func TestEntry(t *testing.T) {
addr := cdc.CacheAddr(2684420101)
entry, err := cdc.OpenEntry(addr, "testcache")
if err != nil {
t.Fatal(err)
}
url := "https://golang.org/doc/gopher/pkg.png"
if url != entry.URL() {
t.Fatalf("got: %s, want: %s", entry.URL(), url)
}
header, err := entry.Header()
if err != nil {
t.Fatal(err)
}
cl := header.Get("Content-Length")
if cl != "5409" {
t.Fatalf("got: %s, want: 5409", cl)
}
ct := header.Get("Content-Type")
if ct != "image/png" {
t.Fatalf("got: %s, want: image/png", ct)
}
body, err := entry.Body()
if err != nil {
t.Fatal(err)
}
n, err := io.Copy(ioutil.Discard, body)
if err != nil {
t.Fatal(err)
}
if n != 5409 {
t.Fatalf("got: %d, want: 5409", n)
}
body.Close()
}