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package test
import (
"testing"
"github.com/miekg/dns"
)
func TestReverseCorefile(t *testing.T) {
corefile := `10.0.0.0/24:0 {
whoami
}`
i, err := CoreDNSServer(corefile)
if err != nil {
t.Fatalf("Could not get CoreDNS serving instance: %s", err)
}
defer i.Stop()
udp, _ := CoreDNSServerPorts(i, 0)
if udp == "" {
t.Fatalf("Could not get UDP listening port")
}
m := new(dns.Msg)
m.SetQuestion("17.0.0.10.in-addr.arpa.", dns.TypePTR)
resp, err := dns.Exchange(m, udp)
if err != nil {
t.Fatal("Expected to receive reply, but didn't")
}
if len(resp.Extra) != 2 {
t.Fatal("Expected to at least two RRs in the extra section, got none")
}
// Second one is SRV, first one can be A or AAAA depending on system.
if resp.Extra[1].Header().Rrtype != dns.TypeSRV {
t.Errorf("Expected RR to SRV, got: %d", resp.Extra[1].Header().Rrtype)
}
if resp.Extra[1].Header().Name != "_udp.17.0.0.10.in-addr.arpa." {
t.Errorf("Expected _udp.17.0.0.10.in-addr.arpa. got: %s", resp.Extra[1].Header().Name)
}
}
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