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	This checks if the next middleware to be called is nil, and if so returns ServerFailure and an error. This makes the next calling more robust and saves some lines of code. Also prefix the error with the name of the middleware to aid in debugging.
		
			
				
	
	
		
			131 lines
		
	
	
		
			3.1 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			131 lines
		
	
	
		
			3.1 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
// +build etcd
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package etcd
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import (
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	"sort"
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	"testing"
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	"github.com/miekg/coredns/middleware/etcd/msg"
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	"github.com/miekg/coredns/middleware/pkg/dnsrecorder"
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	"github.com/miekg/coredns/middleware/test"
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	"github.com/miekg/dns"
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)
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func TestDebugLookup(t *testing.T) {
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	etc := newEtcdMiddleware()
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	etc.Debugging = true
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	for _, serv := range servicesDebug {
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		set(t, etc, serv.Key, 0, serv)
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		defer delete(t, etc, serv.Key)
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	}
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	for _, tc := range dnsTestCasesDebug {
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		m := tc.Msg()
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		rec := dnsrecorder.New(&test.ResponseWriter{})
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		etc.ServeDNS(ctxt, rec, m)
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		resp := rec.Msg
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		sort.Sort(test.RRSet(resp.Answer))
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		sort.Sort(test.RRSet(resp.Ns))
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		sort.Sort(test.RRSet(resp.Extra))
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		if !test.Header(t, tc, resp) {
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			t.Logf("%v\n", resp)
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			continue
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		}
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		if !test.Section(t, tc, test.Answer, resp.Answer) {
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			t.Logf("%v\n", resp)
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		}
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		if !test.Section(t, tc, test.Ns, resp.Ns) {
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			t.Logf("%v\n", resp)
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		}
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		if !test.Section(t, tc, test.Extra, resp.Extra) {
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			t.Logf("%v\n", resp)
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		}
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	}
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}
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func TestDebugLookupFalse(t *testing.T) {
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	etc := newEtcdMiddleware()
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	for _, serv := range servicesDebug {
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		set(t, etc, serv.Key, 0, serv)
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		defer delete(t, etc, serv.Key)
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	}
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	for _, tc := range dnsTestCasesDebugFalse {
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		m := tc.Msg()
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		rec := dnsrecorder.New(&test.ResponseWriter{})
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		etc.ServeDNS(ctxt, rec, m)
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		resp := rec.Msg
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		sort.Sort(test.RRSet(resp.Answer))
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		sort.Sort(test.RRSet(resp.Ns))
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		sort.Sort(test.RRSet(resp.Extra))
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		if !test.Header(t, tc, resp) {
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			t.Logf("%v\n", resp)
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			continue
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		}
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		if !test.Section(t, tc, test.Answer, resp.Answer) {
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			t.Logf("%v\n", resp)
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		}
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		if !test.Section(t, tc, test.Ns, resp.Ns) {
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			t.Logf("%v\n", resp)
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		}
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		if !test.Section(t, tc, test.Extra, resp.Extra) {
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			t.Logf("%v\n", resp)
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		}
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	}
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}
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var servicesDebug = []*msg.Service{
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	{Host: "127.0.0.1", Key: "a.dom.skydns.test."},
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	{Host: "127.0.0.2", Key: "b.sub.dom.skydns.test."},
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}
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var dnsTestCasesDebug = []test.Case{
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	{
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		Qname: "o-o.debug.dom.skydns.test.", Qtype: dns.TypeA,
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		Answer: []dns.RR{
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			test.A("dom.skydns.test. 300 IN A 127.0.0.1"),
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			test.A("dom.skydns.test. 300 IN A 127.0.0.2"),
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		},
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		Extra: []dns.RR{
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			test.TXT(`a.dom.skydns.test. 300	CH	TXT	"127.0.0.1:0(10,0,,false)[0,]"`),
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			test.TXT(`b.sub.dom.skydns.test. 300	CH	TXT	"127.0.0.2:0(10,0,,false)[0,]"`),
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		},
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	},
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	{
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		Qname: "o-o.debug.dom.skydns.test.", Qtype: dns.TypeTXT,
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		Ns: []dns.RR{
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			test.SOA("skydns.test. 300 IN SOA ns.dns.skydns.test. hostmaster.skydns.test. 1463943291 7200 1800 86400 60"),
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		},
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		Extra: []dns.RR{
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			test.TXT(`a.dom.skydns.test. 300	CH	TXT	"127.0.0.1:0(10,0,,false)[0,]"`),
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			test.TXT(`b.sub.dom.skydns.test. 300	CH	TXT	"127.0.0.2:0(10,0,,false)[0,]"`),
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		},
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	},
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}
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var dnsTestCasesDebugFalse = []test.Case{
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	{
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		Qname: "o-o.debug.dom.skydns.test.", Qtype: dns.TypeA,
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		Rcode: dns.RcodeNameError,
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		Ns: []dns.RR{
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			test.SOA("skydns.test. 300 IN SOA ns.dns.skydns.test. hostmaster.skydns.test. 1463943291 7200 1800 86400 60"),
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		},
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	},
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	{
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		Qname: "o-o.debug.dom.skydns.test.", Qtype: dns.TypeTXT,
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		Rcode: dns.RcodeNameError,
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		Ns: []dns.RR{
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			test.SOA("skydns.test. 300 IN SOA ns.dns.skydns.test. hostmaster.skydns.test. 1463943291 7200 1800 86400 60"),
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		},
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	},
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}
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