coredns/plugin/forward/proxy_test.go
Miek Gieben b003d06003
For caddy v1 in our org (#4018)
* For caddy v1 in our org

This RP changes all imports for caddyserver/caddy to coredns/caddy. This
is the v1 code of caddy.

For the coredns/caddy repo the following changes have been made:

* anything not needed by us is deleted
* all `telemetry` stuff is deleted
* all its import paths are also changed to point to coredns/caddy
* the v1 branch has been moved to the master branch
* a v1.1.0 tag has been added to signal the latest release

Signed-off-by: Miek Gieben <miek@miek.nl>

* Fix imports

Signed-off-by: Miek Gieben <miek@miek.nl>

* Group coredns/caddy with out plugins

Signed-off-by: Miek Gieben <miek@miek.nl>

* remove this file

Signed-off-by: Miek Gieben <miek@miek.nl>

* Relax import ordering

github.com/coredns is now also a coredns dep, this makes
github.com/coredns/caddy fit more natural in the list.

Signed-off-by: Miek Gieben <miek@miek.nl>

* Fix final import

Signed-off-by: Miek Gieben <miek@miek.nl>
2020-09-24 18:14:41 +02:00

97 lines
2.8 KiB
Go

package forward
import (
"context"
"testing"
"github.com/coredns/caddy"
"github.com/coredns/coredns/plugin/pkg/dnstest"
"github.com/coredns/coredns/plugin/pkg/transport"
"github.com/coredns/coredns/plugin/test"
"github.com/coredns/coredns/request"
"github.com/miekg/dns"
)
func TestProxy(t *testing.T) {
s := dnstest.NewServer(func(w dns.ResponseWriter, r *dns.Msg) {
ret := new(dns.Msg)
ret.SetReply(r)
ret.Answer = append(ret.Answer, test.A("example.org. IN A 127.0.0.1"))
w.WriteMsg(ret)
})
defer s.Close()
c := caddy.NewTestController("dns", "forward . "+s.Addr)
f, err := parseForward(c)
if err != nil {
t.Errorf("Failed to create forwarder: %s", err)
}
f.OnStartup()
defer f.OnShutdown()
m := new(dns.Msg)
m.SetQuestion("example.org.", dns.TypeA)
rec := dnstest.NewRecorder(&test.ResponseWriter{})
if _, err := f.ServeDNS(context.TODO(), rec, m); err != nil {
t.Fatal("Expected to receive reply, but didn't")
}
if x := rec.Msg.Answer[0].Header().Name; x != "example.org." {
t.Errorf("Expected %s, got %s", "example.org.", x)
}
}
func TestProxyTLSFail(t *testing.T) {
// This is an udp/tcp test server, so we shouldn't reach it with TLS.
s := dnstest.NewServer(func(w dns.ResponseWriter, r *dns.Msg) {
ret := new(dns.Msg)
ret.SetReply(r)
ret.Answer = append(ret.Answer, test.A("example.org. IN A 127.0.0.1"))
w.WriteMsg(ret)
})
defer s.Close()
c := caddy.NewTestController("dns", "forward . tls://"+s.Addr)
f, err := parseForward(c)
if err != nil {
t.Errorf("Failed to create forwarder: %s", err)
}
f.OnStartup()
defer f.OnShutdown()
m := new(dns.Msg)
m.SetQuestion("example.org.", dns.TypeA)
rec := dnstest.NewRecorder(&test.ResponseWriter{})
if _, err := f.ServeDNS(context.TODO(), rec, m); err == nil {
t.Fatal("Expected *not* to receive reply, but got one")
}
}
func TestProtocolSelection(t *testing.T) {
p := NewProxy("bad_address", transport.DNS)
stateUDP := request.Request{W: &test.ResponseWriter{}, Req: new(dns.Msg)}
stateTCP := request.Request{W: &test.ResponseWriter{TCP: true}, Req: new(dns.Msg)}
ctx := context.TODO()
go func() {
p.Connect(ctx, stateUDP, options{})
p.Connect(ctx, stateUDP, options{forceTCP: true})
p.Connect(ctx, stateUDP, options{preferUDP: true})
p.Connect(ctx, stateUDP, options{preferUDP: true, forceTCP: true})
p.Connect(ctx, stateTCP, options{})
p.Connect(ctx, stateTCP, options{forceTCP: true})
p.Connect(ctx, stateTCP, options{preferUDP: true})
p.Connect(ctx, stateTCP, options{preferUDP: true, forceTCP: true})
}()
for i, exp := range []string{"udp", "tcp", "udp", "tcp", "tcp", "tcp", "udp", "tcp"} {
proto := <-p.transport.dial
p.transport.ret <- nil
if proto != exp {
t.Errorf("Unexpected protocol in case %d, expected %q, actual %q", i, exp, proto)
}
}
}