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	* tests: CoreDNSServerAndPorts Copy from kubernetes.go and renamed to fit the style, adapted almost all callers. This is a mechanicl change, no testdata was changed. * typos
		
			
				
	
	
		
			56 lines
		
	
	
		
			1.4 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			56 lines
		
	
	
		
			1.4 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
package test
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import (
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	"testing"
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	"github.com/miekg/dns"
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)
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// Start 2 tests server, server A will proxy to B, server B is an CH server.
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func TestProxyToChaosServer(t *testing.T) {
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	t.Parallel()
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	corefile := `.:0 {
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	chaos CoreDNS-001 miek@miek.nl
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}
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`
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	chaos, udpChaos, _, 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 chaos.Stop()
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	corefileProxy := `.:0 {
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		proxy . ` + udpChaos + `
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}
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`
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	proxy, udp, _, err := CoreDNSServerAndPorts(corefileProxy)
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	if err != nil {
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		t.Fatalf("Could not get CoreDNS serving instance")
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	}
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	defer proxy.Stop()
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	chaosTest(t, udpChaos)
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	chaosTest(t, udp)
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	// chaosTest(t, tcp, "tcp"), commented out because we use the original transport to reach the
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	// proxy and we only forward to the udp port.
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}
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func chaosTest(t *testing.T, server string) {
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	m := new(dns.Msg)
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	m.Question = make([]dns.Question, 1)
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	m.Question[0] = dns.Question{Qclass: dns.ClassCHAOS, Name: "version.bind.", Qtype: dns.TypeTXT}
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	r, err := dns.Exchange(m, server)
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	if err != nil {
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		t.Fatalf("Could not send message: %s", err)
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	}
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	if r.Rcode != dns.RcodeSuccess || len(r.Answer) == 0 {
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		t.Fatalf("Expected successful reply, got %s", dns.RcodeToString[r.Rcode])
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	}
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	if r.Answer[0].String() != `version.bind.	0	CH	TXT	"CoreDNS-001"` {
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		t.Fatalf("Expected version.bind. reply, got %s", r.Answer[0].String())
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	}
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}
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