micro/util/dns/cache_test.go

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package dns
import (
"net"
"testing"
)
func TestCache(t *testing.T) {
net.DefaultResolver = NewNetResolver(PreferIPV4(true))
addrs, err := net.LookupHost("unistack.org")
if err != nil {
t.Fatal(err)
}
t.Logf("addrs %v", addrs)
}