coredns/test/etcd_test.go
Miek Gieben d1f17fa7e0 Cleanup: put middleware helper functions in pkgs (#245)
Move all (almost all) Go files in middleware into their
own packages. This makes for better naming and discoverability.

Lot of changes elsewhere to make this change.

The middleware.State was renamed to request.Request which is better,
but still does not cover all use-cases. It was also moved out middleware
because it is used by `dnsserver` as well.

A pkg/dnsutil packages was added for shared, handy, dns util functions.

All normalize functions are now put in normalize.go
2016-09-07 11:10:16 +01:00

109 lines
3.1 KiB
Go

// +build etcd
package test
import (
"encoding/json"
"io/ioutil"
"log"
"testing"
"time"
"github.com/miekg/coredns/middleware/etcd"
"github.com/miekg/coredns/middleware/etcd/msg"
"github.com/miekg/coredns/middleware/proxy"
"github.com/miekg/coredns/middleware/test"
"github.com/miekg/coredns/request"
etcdc "github.com/coreos/etcd/client"
"github.com/miekg/dns"
"golang.org/x/net/context"
)
func etcdMiddleware() *etcd.Etcd {
etcdCfg := etcdc.Config{
Endpoints: []string{"http://localhost:2379"},
}
cli, _ := etcdc.New(etcdCfg)
client := etcdc.NewKeysAPI(cli)
return &etcd.Etcd{Client: client}
}
// This test starts two coredns servers (and needs etcd). Configure a stubzones in both (that will loop) and
// will then test if we detect this loop.
func TestEtcdStubForwarding(t *testing.T) {
// TODO(miek)
}
func TestEtcdStubAndProxyLookup(t *testing.T) {
corefile := `.:0 {
etcd skydns.local {
stubzones
path /skydns
endpoint http://localhost:2379
upstream 8.8.8.8:53 8.8.4.4:53
}
proxy . 8.8.8.8:53
}`
ex, err := CoreDNSServer(corefile)
if err != nil {
t.Fatalf("could not get CoreDNS serving instance: %s", err)
}
udp, _ := CoreDNSServerPorts(ex, 0)
if udp == "" {
t.Fatalf("could not get udp listening port")
}
defer ex.Stop()
etc := etcdMiddleware()
log.SetOutput(ioutil.Discard)
var ctx = context.TODO()
for _, serv := range servicesStub { // adds example.{net,org} as stubs
set(ctx, t, etc, serv.Key, 0, serv)
defer delete(ctx, t, etc, serv.Key)
}
p := proxy.New([]string{udp}) // use udp port from the server
state := request.Request{W: &test.ResponseWriter{}, Req: new(dns.Msg)}
resp, err := p.Lookup(state, "example.com.", dns.TypeA)
if err != nil {
t.Error("Expected to receive reply, but didn't")
return
}
if len(resp.Answer) == 0 {
t.Error("Expected to at least one RR in the answer section, got none")
}
if resp.Answer[0].Header().Rrtype != dns.TypeA {
t.Errorf("Expected RR to A, got: %d", resp.Answer[0].Header().Rrtype)
}
if resp.Answer[0].(*dns.A).A.String() != "93.184.216.34" {
t.Errorf("Expected 93.184.216.34, got: %d", resp.Answer[0].(*dns.A).A.String())
}
}
var servicesStub = []*msg.Service{
// Two tests, ask a question that should return servfail because remote it no accessible
// and one with edns0 option added, that should return refused.
{Host: "127.0.0.1", Port: 666, Key: "b.example.org.stub.dns.skydns.test."},
// Actual test that goes out to the internet.
{Host: "199.43.132.53", Key: "a.example.net.stub.dns.skydns.test."},
}
// Copied from middleware/etcd/setup_test.go
func set(ctx context.Context, t *testing.T, e *etcd.Etcd, k string, ttl time.Duration, m *msg.Service) {
b, err := json.Marshal(m)
if err != nil {
t.Fatal(err)
}
path, _ := msg.PathWithWildcard(k, e.PathPrefix)
e.Client.Set(ctx, path, string(b), &etcdc.SetOptions{TTL: ttl})
}
// Copied from middleware/etcd/setup_test.go
func delete(ctx context.Context, t *testing.T, e *etcd.Etcd, k string) {
path, _ := msg.PathWithWildcard(k, e.PathPrefix)
e.Client.Delete(ctx, path, &etcdc.DeleteOptions{Recursive: false})
}