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