coredns/middleware/proxy/dnstap_test.go
varyoo c5efd45720 middleware/proxy: dnstap (#786)
* experimental dnstap support into proxy

* proxy reports dnstap errors

* refactoring

* add a message builder for less dnstap code

* msg lint

* context

* proxy by DNS: dnstap comments

* TapBuilder

* resolves conflict

* dnstap into ServeDNS

* testing

* more tests

* `go lint`

* doc update
2017-09-01 12:41:41 +02:00

57 lines
1.7 KiB
Go

package proxy
import (
"testing"
"github.com/coredns/coredns/middleware/dnstap/msg"
"github.com/coredns/coredns/middleware/dnstap/test"
mwtest "github.com/coredns/coredns/middleware/test"
"github.com/coredns/coredns/request"
tap "github.com/dnstap/golang-dnstap"
"github.com/miekg/dns"
"golang.org/x/net/context"
)
func testCase(t *testing.T, ex Exchanger, q, r *dns.Msg, datq, datr *msg.Data) {
tapq := datq.ToOutsideQuery(tap.Message_FORWARDER_QUERY)
tapr := datr.ToOutsideResponse(tap.Message_FORWARDER_RESPONSE)
ctx := test.Context{}
err := toDnstap(&ctx, "10.240.0.1:40212", ex,
request.Request{W: &mwtest.ResponseWriter{}, Req: q}, r, 0, 0)
if err != nil {
t.Fatal(err)
}
if len(ctx.Trap) != 2 {
t.Fatalf("messages: %d", len(ctx.Trap))
}
if !test.MsgEqual(ctx.Trap[0], tapq) {
t.Errorf("want: %v\nhave: %v", tapq, ctx.Trap[0])
}
if !test.MsgEqual(ctx.Trap[1], tapr) {
t.Errorf("want: %v\nhave: %v", tapr, ctx.Trap[1])
}
}
func TestDnstap(t *testing.T) {
q := mwtest.Case{Qname: "example.org", Qtype: dns.TypeA}.Msg()
r := mwtest.Case{
Qname: "example.org.", Qtype: dns.TypeA,
Answer: []dns.RR{
mwtest.A("example.org. 3600 IN A 10.0.0.1"),
},
}.Msg()
tapq, tapr := test.TestingData(), test.TestingData()
testCase(t, newDNSEx(), q, r, tapq, tapr)
tapq.SocketProto = tap.SocketProtocol_TCP
tapr.SocketProto = tap.SocketProtocol_TCP
testCase(t, newDNSExWithOption(Options{ForceTCP: true}), q, r, tapq, tapr)
testCase(t, newGoogle("", []string{"8.8.8.8:53", "8.8.4.4:53"}), q, r, tapq, tapr)
}
func TestNoDnstap(t *testing.T) {
err := toDnstap(context.TODO(), "", nil, request.Request{}, nil, 0, 0)
if err != nil {
t.Fatal(err)
}
}