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https://github.com/coredns/coredns.git
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Add lookup tests for integration tests
This commit is contained in:
Miek Gieben
394
middleware/etcd/lookup_test.go
Normal file
394
middleware/etcd/lookup_test.go
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@@ -0,0 +1,394 @@
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// Copyright (c) 2014 The SkyDNS Authors. All rights reserved.
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// Use of this source code is governed by The MIT License (MIT) that can be
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// found in the LICENSE file.
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package server
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// etcd needs to be running on http://127.0.0.1:4001
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import (
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"encoding/json"
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"sort"
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"testing"
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"time"
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backendetcd "github.com/skynetservices/skydns/backends/etcd"
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"github.com/skynetservices/skydns/msg"
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etcd "github.com/coreos/etcd/client"
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"github.com/miekg/dns"
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)
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func addService(t *testing.T, s *server, k string, ttl time.Duration, m *msg.Service) {
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b, err := json.Marshal(m)
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if err != nil {
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t.Fatal(err)
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}
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path, _ := msg.PathWithWildcard(k)
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s.backend.(*backendetcd.Backend).Client().Set(ctx, path, string(b), &etcd.SetOptions{TTL: ttl})
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}
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func delService(t *testing.T, s *server, k string) {
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path, _ := msg.PathWithWildcard(k)
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backend.(*backendetcd.Backend).Client().Delete(ctx, path, &etcd.DeleteOptions{Recursive: false})
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}
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type rrSet []dns.RR
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func (p rrSet) Len() int { return len(p) }
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func (p rrSet) Swap(i, j int) { p[i], p[j] = p[j], p[i] }
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func (p rrSet) Less(i, j int) bool { return p[i].String() < p[j].String() }
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func TestDNS(t *testing.T) {
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s := newTestServerDNSSEC(t, false)
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defer s.Stop()
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for _, serv := range services {
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addService(t, s, serv.Key, 0, serv)
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defer delService(t, s, serv.Key)
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}
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c := new(dns.Client)
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for _, tc := range dnsTestCases {
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m := new(dns.Msg)
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m.SetQuestion(tc.Qname, tc.Qtype)
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if tc.dnssec {
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m.SetEdns0(4096, true)
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}
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if tc.chaos {
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m.Question[0].Qclass = dns.ClassCHAOS
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}
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resp, _, err := c.Exchange(m, "127.0.0.1:"+StrPort)
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if err != nil {
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// try twice, be more resilent against remote lookups
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// timing out.
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resp, _, err = c.Exchange(m, "127.0.0.1:"+StrPort)
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if err != nil {
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t.Fatalf("failing: %s: %s\n", m.String(), err.Error())
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}
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}
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sort.Sort(rrSet(resp.Answer))
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sort.Sort(rrSet(resp.Ns))
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sort.Sort(rrSet(resp.Extra))
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fatal := false
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defer func() {
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if fatal {
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t.Logf("question: %s\n", m.Question[0].String())
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t.Logf("%s\n", resp)
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}
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}()
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if resp.Rcode != tc.Rcode {
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fatal = true
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t.Fatalf("rcode is %q, expected %q", dns.RcodeToString[resp.Rcode], dns.RcodeToString[tc.Rcode])
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}
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if len(resp.Answer) != len(tc.Answer) {
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fatal = true
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t.Fatalf("answer for %q contained %d results, %d expected", tc.Qname, len(resp.Answer), len(tc.Answer))
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}
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for i, a := range resp.Answer {
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if a.Header().Name != tc.Answer[i].Header().Name {
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fatal = true
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t.Fatalf("answer %d should have a Header Name of %q, but has %q", i, tc.Answer[i].Header().Name, a.Header().Name)
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}
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if a.Header().Ttl != tc.Answer[i].Header().Ttl {
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fatal = true
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t.Fatalf("Answer %d should have a Header TTL of %d, but has %d", i, tc.Answer[i].Header().Ttl, a.Header().Ttl)
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}
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if a.Header().Rrtype != tc.Answer[i].Header().Rrtype {
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fatal = true
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t.Fatalf("answer %d should have a header response type of %d, but has %d", i, tc.Answer[i].Header().Rrtype, a.Header().Rrtype)
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}
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switch x := a.(type) {
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case *dns.SRV:
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if x.Priority != tc.Answer[i].(*dns.SRV).Priority {
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fatal = true
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t.Fatalf("answer %d should have a Priority of %d, but has %d", i, tc.Answer[i].(*dns.SRV).Priority, x.Priority)
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}
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if x.Weight != tc.Answer[i].(*dns.SRV).Weight {
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fatal = true
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t.Fatalf("answer %d should have a Weight of %d, but has %d", i, tc.Answer[i].(*dns.SRV).Weight, x.Weight)
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}
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if x.Port != tc.Answer[i].(*dns.SRV).Port {
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fatal = true
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t.Fatalf("answer %d should have a Port of %d, but has %d", i, tc.Answer[i].(*dns.SRV).Port, x.Port)
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}
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if x.Target != tc.Answer[i].(*dns.SRV).Target {
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fatal = true
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t.Fatalf("answer %d should have a Target of %q, but has %q", i, tc.Answer[i].(*dns.SRV).Target, x.Target)
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}
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case *dns.A:
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if x.A.String() != tc.Answer[i].(*dns.A).A.String() {
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fatal = true
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t.Fatalf("answer %d should have a Address of %q, but has %q", i, tc.Answer[i].(*dns.A).A.String(), x.A.String())
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}
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case *dns.AAAA:
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if x.AAAA.String() != tc.Answer[i].(*dns.AAAA).AAAA.String() {
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fatal = true
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t.Fatalf("answer %d should have a Address of %q, but has %q", i, tc.Answer[i].(*dns.AAAA).AAAA.String(), x.AAAA.String())
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}
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case *dns.TXT:
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for j, txt := range x.Txt {
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if txt != tc.Answer[i].(*dns.TXT).Txt[j] {
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fatal = true
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t.Fatalf("answer %d should have a Txt of %q, but has %q", i, tc.Answer[i].(*dns.TXT).Txt[j], txt)
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}
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}
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case *dns.SOA:
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tt := tc.Answer[i].(*dns.SOA)
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if x.Ns != tt.Ns {
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fatal = true
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t.Fatalf("SOA nameserver should be %q, but is %q", x.Ns, tt.Ns)
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}
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case *dns.PTR:
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tt := tc.Answer[i].(*dns.PTR)
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if x.Ptr != tt.Ptr {
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fatal = true
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t.Fatalf("PTR ptr should be %q, but is %q", x.Ptr, tt.Ptr)
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}
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case *dns.CNAME:
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tt := tc.Answer[i].(*dns.CNAME)
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if x.Target != tt.Target {
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fatal = true
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t.Fatalf("CNAME target should be %q, but is %q", x.Target, tt.Target)
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}
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case *dns.MX:
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tt := tc.Answer[i].(*dns.MX)
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if x.Mx != tt.Mx {
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t.Fatalf("MX Mx should be %q, but is %q", x.Mx, tt.Mx)
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}
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if x.Preference != tt.Preference {
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t.Fatalf("MX Preference should be %q, but is %q", x.Preference, tt.Preference)
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}
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}
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}
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if len(resp.Ns) != len(tc.Ns) {
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fatal = true
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t.Fatalf("authority for %q contained %d results, %d expected", tc.Qname, len(resp.Ns), len(tc.Ns))
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}
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for i, n := range resp.Ns {
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switch x := n.(type) {
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case *dns.SOA:
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tt := tc.Ns[i].(*dns.SOA)
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if x.Ns != tt.Ns {
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fatal = true
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t.Fatalf("SOA nameserver should be %q, but is %q", x.Ns, tt.Ns)
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}
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case *dns.NS:
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tt := tc.Ns[i].(*dns.NS)
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if x.Ns != tt.Ns {
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fatal = true
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t.Fatalf("NS nameserver should be %q, but is %q", x.Ns, tt.Ns)
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}
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}
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}
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if len(resp.Extra) != len(tc.Extra) {
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fatal = true
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t.Fatalf("additional for %q contained %d results, %d expected", tc.Qname, len(resp.Extra), len(tc.Extra))
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}
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for i, e := range resp.Extra {
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switch x := e.(type) {
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case *dns.A:
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if x.A.String() != tc.Extra[i].(*dns.A).A.String() {
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fatal = true
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t.Fatalf("extra %d should have a address of %q, but has %q", i, tc.Extra[i].(*dns.A).A.String(), x.A.String())
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}
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case *dns.AAAA:
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if x.AAAA.String() != tc.Extra[i].(*dns.AAAA).AAAA.String() {
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fatal = true
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t.Fatalf("extra %d should have a address of %q, but has %q", i, tc.Extra[i].(*dns.AAAA).AAAA.String(), x.AAAA.String())
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}
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case *dns.CNAME:
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tt := tc.Extra[i].(*dns.CNAME)
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if x.Target != tt.Target {
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// Super super gross hack.
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if x.Target == "a.ipaddr.skydns.test." && tt.Target == "b.ipaddr.skydns.test." {
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// These records are randomly choosen, either one is OK.
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continue
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}
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fatal = true
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t.Fatalf("CNAME target should be %q, but is %q", x.Target, tt.Target)
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}
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}
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}
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}
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}
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type dnsTestCase struct {
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Qname string
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Qtype uint16
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chaos bool
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Rcode int
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Answer []dns.RR
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Ns []dns.RR
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Extra []dns.RR
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}
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// Note the key is encoded as DNS name, while in "reality" it is a etcd path.
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var services = []*msg.Service{
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{Host: "server1", Port: 8080, Key: "100.server1.development.region1.skydns.test."},
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{Host: "server2", Port: 80, Key: "101.server2.production.region1.skydns.test."},
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{Host: "server4", Port: 80, Priority: 333, Key: "102.server4.development.region6.skydns.test."},
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}
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var dnsTestCases = []dnsTestCase{
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// Full Name Test
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{
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Qname: "100.server1.development.region1.skydns.test.", Qtype: dns.TypeSRV,
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Answer: []dns.RR{newSRV("100.server1.development.region1.skydns.test. 3600 SRV 10 100 8080 server1.")},
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},
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// A Record Test
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{
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Qname: "104.server1.development.region1.skydns.test.", Qtype: dns.TypeA,
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Answer: []dns.RR{newA("104.server1.development.region1.skydns.test. 3600 A 10.0.0.1")},
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},
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// Multiple A Record Test
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{
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Qname: "ipaddr.skydns.test.", Qtype: dns.TypeA,
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Answer: []dns.RR{
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newA("ipaddr.skydns.test. 3600 A 172.16.1.1"),
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newA("ipaddr.skydns.test. 3600 A 172.16.1.2"),
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},
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},
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// A Record Test with SRV
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{
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Qname: "104.server1.development.region1.skydns.test.", Qtype: dns.TypeSRV,
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Answer: []dns.RR{newSRV("104.server1.development.region1.skydns.test. 3600 SRV 10 100 0 104.server1.development.region1.skydns.test.")},
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Extra: []dns.RR{newA("104.server1.development.region1.skydns.test. 3600 A 10.0.0.1")},
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},
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// AAAAA Record Test
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{
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Qname: "105.server3.production.region2.skydns.test.", Qtype: dns.TypeAAAA,
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Answer: []dns.RR{newAAAA("105.server3.production.region2.skydns.test. 3600 AAAA 2001::8:8:8:8")},
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},
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// Multi SRV with the same target, should be dedupped.
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{
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Qname: "*.cname2.skydns.test.", Qtype: dns.TypeSRV,
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Answer: []dns.RR{
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newSRV("*.cname2.skydns.test. 3600 IN SRV 10 100 0 www.miek.nl."),
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},
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Extra: []dns.RR{
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newA("a.miek.nl. 3600 IN A 139.162.196.78"),
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newAAAA("a.miek.nl. 3600 IN AAAA 2a01:7e00::f03c:91ff:fef1:6735"),
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newCNAME("www.miek.nl. 3600 IN CNAME a.miek.nl."),
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},
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},
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// CNAME (unresolvable internal name)
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{
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Qname: "2.cname.skydns.test.", Qtype: dns.TypeA,
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Answer: []dns.RR{},
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Ns: []dns.RR{newSOA("skydns.test. 60 SOA ns.dns.skydns.test. hostmaster.skydns.test. 1407441600 28800 7200 604800 60")},
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},
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// CNAME loop detection
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{
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Qname: "3.cname.skydns.test.", Qtype: dns.TypeA,
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Answer: []dns.RR{},
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Ns: []dns.RR{newSOA("skydns.test. 60 SOA ns.dns.skydns.test. hostmaster.skydns.test. 1407441600 28800 7200 604800 60")},
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},
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// CNAME (resolvable external name)
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{
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Qname: "external1.cname.skydns.test.", Qtype: dns.TypeA,
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Answer: []dns.RR{
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newA("a.miek.nl. 60 IN A 139.162.196.78"),
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newCNAME("external1.cname.skydns.test. 60 IN CNAME www.miek.nl."),
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newCNAME("www.miek.nl. 60 IN CNAME a.miek.nl."),
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},
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},
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// CNAME (unresolvable external name)
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{
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Qname: "external2.cname.skydns.test.", Qtype: dns.TypeA,
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Answer: []dns.RR{},
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Ns: []dns.RR{newSOA("skydns.test. 60 SOA ns.dns.skydns.test. hostmaster.skydns.test. 1407441600 28800 7200 604800 60")},
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},
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// Priority Test
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{
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Qname: "region6.skydns.test.", Qtype: dns.TypeSRV,
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Answer: []dns.RR{newSRV("region6.skydns.test. 3600 SRV 333 100 80 server4.")},
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},
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// Subdomain Test
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{
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Qname: "region1.skydns.test.", Qtype: dns.TypeSRV,
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Answer: []dns.RR{
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newSRV("region1.skydns.test. 3600 SRV 10 33 0 104.server1.development.region1.skydns.test."),
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newSRV("region1.skydns.test. 3600 SRV 10 33 80 server2"),
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newSRV("region1.skydns.test. 3600 SRV 10 33 8080 server1.")},
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Extra: []dns.RR{newA("104.server1.development.region1.skydns.test. 3600 A 10.0.0.1")},
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},
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// Subdomain Weight Test
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{
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Qname: "region5.skydns.test.", Qtype: dns.TypeSRV,
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Answer: []dns.RR{
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newSRV("region5.skydns.test. 3600 SRV 10 22 0 server2."),
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newSRV("region5.skydns.test. 3600 SRV 10 36 0 server1."),
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newSRV("region5.skydns.test. 3600 SRV 10 41 0 server3."),
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newSRV("region5.skydns.test. 3600 SRV 30 100 0 server4.")},
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},
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// Wildcard Test
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{
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Qname: "*.region1.skydns.test.", Qtype: dns.TypeSRV,
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Answer: []dns.RR{
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newSRV("*.region1.skydns.test. 3600 SRV 10 33 0 104.server1.development.region1.skydns.test."),
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newSRV("*.region1.skydns.test. 3600 SRV 10 33 80 server2"),
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newSRV("*.region1.skydns.test. 3600 SRV 10 33 8080 server1.")},
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Extra: []dns.RR{newA("104.server1.development.region1.skydns.test. 3600 A 10.0.0.1")},
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},
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// Wildcard Test
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{
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Qname: "production.*.skydns.test.", Qtype: dns.TypeSRV,
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Answer: []dns.RR{
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newSRV("production.*.skydns.test. 3600 IN SRV 10 50 0 105.server3.production.region2.skydns.test."),
|
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newSRV("production.*.skydns.test. 3600 IN SRV 10 50 80 server2.")},
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Extra: []dns.RR{newAAAA("105.server3.production.region2.skydns.test. 3600 IN AAAA 2001::8:8:8:8")},
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},
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// Wildcard Test
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{
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Qname: "production.any.skydns.test.", Qtype: dns.TypeSRV,
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Answer: []dns.RR{
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newSRV("production.any.skydns.test. 3600 IN SRV 10 50 0 105.server3.production.region2.skydns.test."),
|
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newSRV("production.any.skydns.test. 3600 IN SRV 10 50 80 server2.")},
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Extra: []dns.RR{newAAAA("105.server3.production.region2.skydns.test. 3600 IN AAAA 2001::8:8:8:8")},
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},
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// NXDOMAIN Test
|
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{
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Qname: "doesnotexist.skydns.test.", Qtype: dns.TypeA,
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Rcode: dns.RcodeNameError,
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Ns: []dns.RR{
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newSOA("skydns.test. 3600 SOA ns.dns.skydns.test. hostmaster.skydns.test. 0 0 0 0 0"),
|
||||
},
|
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},
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// NODATA Test
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{
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Qname: "104.server1.development.region1.skydns.test.", Qtype: dns.TypeTXT,
|
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Ns: []dns.RR{newSOA("skydns.test. 3600 SOA ns.dns.skydns.test. hostmaster.skydns.test. 0 0 0 0 0")},
|
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},
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// NODATA Test 2
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{
|
||||
Qname: "100.server1.development.region1.skydns.test.", Qtype: dns.TypeA,
|
||||
Rcode: dns.RcodeSuccess,
|
||||
Ns: []dns.RR{newSOA("skydns.test. 3600 SOA ns.dns.skydns.test. hostmaster.skydns.test. 0 0 0 0 0")},
|
||||
},
|
||||
{
|
||||
// One has group, the other has not... Include the non-group always.
|
||||
Qname: "dom2.skydns.test.", Qtype: dns.TypeA,
|
||||
Answer: []dns.RR{
|
||||
newA("dom2.skydns.test. IN A 127.0.0.1"),
|
||||
newA("dom2.skydns.test. IN A 127.0.0.2"),
|
||||
},
|
||||
},
|
||||
{
|
||||
// The groups differ.
|
||||
Qname: "dom1.skydns.test.", Qtype: dns.TypeA,
|
||||
Answer: []dns.RR{
|
||||
newA("dom1.skydns.test. IN A 127.0.0.1"),
|
||||
},
|
||||
},
|
||||
}
|
||||
|
||||
func newA(rr string) *dns.A { r, _ := dns.NewRR(rr); return r.(*dns.A) }
|
||||
func newAAAA(rr string) *dns.AAAA { r, _ := dns.NewRR(rr); return r.(*dns.AAAA) }
|
||||
func newCNAME(rr string) *dns.CNAME { r, _ := dns.NewRR(rr); return r.(*dns.CNAME) }
|
||||
func newSRV(rr string) *dns.SRV { r, _ := dns.NewRR(rr); return r.(*dns.SRV) }
|
||||
func newSOA(rr string) *dns.SOA { r, _ := dns.NewRR(rr); return r.(*dns.SOA) }
|
||||
func newNS(rr string) *dns.NS { r, _ := dns.NewRR(rr); return r.(*dns.NS) }
|
||||
func newPTR(rr string) *dns.PTR { r, _ := dns.NewRR(rr); return r.(*dns.PTR) }
|
||||
func newTXT(rr string) *dns.TXT { r, _ := dns.NewRR(rr); return r.(*dns.TXT) }
|
||||
func newMX(rr string) *dns.MX { r, _ := dns.NewRR(rr); return r.(*dns.MX) }
|
||||
Reference in New Issue
Block a user