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package azure
import (
"context"
"reflect"
"testing"
"github.com/coredns/coredns/plugin/file"
"github.com/coredns/coredns/plugin/pkg/dnstest"
"github.com/coredns/coredns/plugin/pkg/fall"
"github.com/coredns/coredns/plugin/test"
"github.com/coredns/coredns/request"
"github.com/miekg/dns"
)
var demoAzure = Azure{
Next: testHandler(),
Fall: fall.Zero,
zoneNames: []string{"example.org.", "www.example.org.", "example.org.", "sample.example.org."},
zones: testZones(),
}
func testZones() zones {
zones := make(map[string][]*zone)
zones["example.org."] = append(zones["example.org."], &zone{zone: "example.org."})
newZ := file.NewZone("example.org.", "")
for _, rr := range []string{
"example.org. 300 IN A 1.2.3.4",
"example.org. 300 IN AAAA 2001:db8:85a3::8a2e:370:7334",
"www.example.org. 300 IN A 1.2.3.4",
"www.example.org. 300 IN A 1.2.3.4",
"org. 172800 IN NS ns3-06.azure-dns.org.",
"org. 300 IN SOA ns1-06.azure-dns.com. azuredns-hostmaster.microsoft.com. 1 3600 300 2419200 300",
"cname.example.org. 300 IN CNAME example.org",
"mail.example.org. 300 IN MX 10 mailserver.example.com",
"ptr.example.org. 300 IN PTR www.ptr-example.com",
"example.org. 300 IN SRV 1 10 5269 srv-1.example.com.",
"example.org. 300 IN SRV 1 10 5269 srv-2.example.com.",
"txt.example.org. 300 IN TXT \"TXT for example.org\"",
} {
r, _ := dns.NewRR(rr)
newZ.Insert(r)
}
zones["example.org."][0].z = newZ
return zones
}
func testHandler() test.HandlerFunc {
return func(ctx context.Context, w dns.ResponseWriter, r *dns.Msg) (int, error) {
state := request.Request{W: w, Req: r}
qname := state.Name()
m := new(dns.Msg)
rcode := dns.RcodeServerFailure
if qname == "example.gov." { // No records match, test fallthrough.
m.SetReply(r)
rr := test.A("example.gov. 300 IN A 2.4.6.8")
m.Answer = []dns.RR{rr}
m.Authoritative = true
rcode = dns.RcodeSuccess
}
m.SetRcode(r, rcode)
w.WriteMsg(m)
return rcode, nil
}
}
func TestAzure(t *testing.T) {
tests := []struct {
qname string
qtype uint16
wantRetCode int
wantAnswer []string
wantMsgRCode int
wantNS []string
expectedErr error
}{
{
qname: "example.org.",
qtype: dns.TypeA,
wantAnswer: []string{"example.org. 300 IN A 1.2.3.4"},
},
{
qname: "example.org",
qtype: dns.TypeAAAA,
wantAnswer: []string{"example.org. 300 IN AAAA 2001:db8:85a3::8a2e:370:7334"},
},
{
qname: "example.org",
qtype: dns.TypeSOA,
wantAnswer: []string{"org. 300 IN SOA ns1-06.azure-dns.com. azuredns-hostmaster.microsoft.com. 1 3600 300 2419200 300"},
},
{
qname: "badexample.com",
qtype: dns.TypeA,
wantRetCode: dns.RcodeServerFailure,
wantMsgRCode: dns.RcodeServerFailure,
},
{
qname: "example.gov",
qtype: dns.TypeA,
wantAnswer: []string{"example.gov. 300 IN A 2.4.6.8"},
},
{
qname: "example.org",
qtype: dns.TypeSRV,
wantAnswer: []string{"example.org. 300 IN SRV 1 10 5269 srv-1.example.com.", "example.org. 300 IN SRV 1 10 5269 srv-2.example.com."},
},
{
qname: "cname.example.org.",
qtype: dns.TypeCNAME,
wantAnswer: []string{"cname.example.org. 300 IN CNAME example.org."},
},
{
qname: "cname.example.org.",
qtype: dns.TypeA,
wantAnswer: []string{"cname.example.org. 300 IN CNAME example.org.", "example.org. 300 IN A 1.2.3.4"},
},
{
qname: "mail.example.org.",
qtype: dns.TypeMX,
wantAnswer: []string{"mail.example.org. 300 IN MX 10 mailserver.example.com."},
},
{
qname: "ptr.example.org.",
qtype: dns.TypePTR,
wantAnswer: []string{"ptr.example.org. 300 IN PTR www.ptr-example.com."},
},
{
qname: "txt.example.org.",
qtype: dns.TypeTXT,
wantAnswer: []string{"txt.example.org. 300 IN TXT \"TXT for example.org\""},
},
}
for ti, tc := range tests {
req := new(dns.Msg)
req.SetQuestion(dns.Fqdn(tc.qname), tc.qtype)
rec := dnstest.NewRecorder(&test.ResponseWriter{})
code, err := demoAzure.ServeDNS(context.Background(), rec, req)
if err != tc.expectedErr {
t.Fatalf("Test %d: Expected error %v, but got %v", ti, tc.expectedErr, err)
}
if code != int(tc.wantRetCode) {
t.Fatalf("Test %d: Expected returned status code %s, but got %s", ti, dns.RcodeToString[tc.wantRetCode], dns.RcodeToString[code])
}
if tc.wantMsgRCode != rec.Msg.Rcode {
t.Errorf("Test %d: Unexpected msg status code. Want: %s, got: %s", ti, dns.RcodeToString[tc.wantMsgRCode], dns.RcodeToString[rec.Msg.Rcode])
}
if len(tc.wantAnswer) != len(rec.Msg.Answer) {
t.Errorf("Test %d: Unexpected number of Answers. Want: %d, got: %d", ti, len(tc.wantAnswer), len(rec.Msg.Answer))
} else {
for i, gotAnswer := range rec.Msg.Answer {
if gotAnswer.String() != tc.wantAnswer[i] {
t.Errorf("Test %d: Unexpected answer.\nWant:\n\t%s\nGot:\n\t%s", ti, tc.wantAnswer[i], gotAnswer)
}
}
}
if len(tc.wantNS) != len(rec.Msg.Ns) {
t.Errorf("Test %d: Unexpected NS number. Want: %d, got: %d", ti, len(tc.wantNS), len(rec.Msg.Ns))
} else {
for i, ns := range rec.Msg.Ns {
got, ok := ns.(*dns.SOA)
if !ok {
t.Errorf("Test %d: Unexpected NS type. Want: SOA, got: %v", ti, reflect.TypeOf(got))
}
if got.String() != tc.wantNS[i] {
t.Errorf("Test %d: Unexpected NS.\nWant: %v\nGot: %v", ti, tc.wantNS[i], got)
}
}
}
}
}
|
