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			34 lines
		
	
	
		
			606 B
		
	
	
	
		
			Go
		
	
	
	
	
	
		
		
			
		
	
	
			34 lines
		
	
	
		
			606 B
		
	
	
	
		
			Go
		
	
	
	
	
	
|   | package test | ||
|  | 
 | ||
|  | import ( | ||
|  | 	"testing" | ||
|  | 
 | ||
|  | 	"github.com/miekg/dns" | ||
|  | ) | ||
|  | 
 | ||
|  | func TestEDNS0(t *testing.T) { | ||
|  | 	corefile := `.:0 { | ||
|  | 		whoami | ||
|  | } | ||
|  | ` | ||
|  | 
 | ||
|  | 	i, udp, _, err := CoreDNSServerAndPorts(corefile) | ||
|  | 	if err != nil { | ||
|  | 		t.Fatalf("Could not get CoreDNS serving instance: %s", err) | ||
|  | 	} | ||
|  | 	defer i.Stop() | ||
|  | 
 | ||
|  | 	m := new(dns.Msg) | ||
|  | 	m.SetQuestion("example.org.", dns.TypeSOA) | ||
|  | 	m.SetEdns0(4096, true) | ||
|  | 
 | ||
|  | 	resp, err := dns.Exchange(m, udp) | ||
|  | 	if err != nil { | ||
|  | 		t.Fatalf("Expected to receive reply, but didn't: %v", err) | ||
|  | 	} | ||
|  | 	opt := resp.Extra[len(resp.Extra)-1] | ||
|  | 	if opt.Header().Rrtype != dns.TypeOPT { | ||
|  | 		t.Errorf("Last RR must be OPT record") | ||
|  | 	} | ||
|  | } |