coredns/middleware/dnstap/out/socket_test.go
varyoo 1b7492be6e WIP: middleware/dnstap (#711)
middleware/dnstap add
2017-07-24 14:12:50 -07:00

94 lines
1.6 KiB
Go

package out
import (
"net"
"testing"
fs "github.com/farsightsec/golang-framestream"
)
func acceptOne(t *testing.T, l net.Listener) {
server, err := l.Accept()
if err != nil {
t.Fatalf("server accept: %s", err)
return
}
dec, err := fs.NewDecoder(server, &fs.DecoderOptions{
ContentType: []byte("protobuf:dnstap.Dnstap"),
Bidirectional: true,
})
if err != nil {
t.Fatalf("server decoder: %s", err)
return
}
if _, err := dec.Decode(); err != nil {
t.Errorf("server decode: %s", err)
}
if err := server.Close(); err != nil {
t.Error(err)
}
}
func sendOne(socket *Socket) error {
if _, err := socket.Write([]byte("frame")); err != nil {
return err
}
if err := socket.enc.Flush(); err != nil {
// Would happen during Write in real life.
socket.conn.Close()
socket.err = err
return err
}
return nil
}
func TestSocket(t *testing.T) {
socket, err := NewSocket("dnstap.sock")
if err == nil {
t.Fatal("new socket: not listening but no error")
return
}
if err := sendOne(socket); err == nil {
t.Fatal("not listening but no error")
return
}
l, err := net.Listen("unix", "dnstap.sock")
if err != nil {
t.Fatal(err)
return
}
wait := make(chan bool)
go func() {
acceptOne(t, l)
wait <- true
}()
if err := sendOne(socket); err != nil {
t.Fatalf("send one: %s", err)
return
}
<-wait
if err := sendOne(socket); err == nil {
panic("must fail")
}
go func() {
acceptOne(t, l)
wait <- true
}()
if err := sendOne(socket); err != nil {
t.Fatalf("send one: %s", err)
return
}
<-wait
if err := l.Close(); err != nil {
t.Error(err)
}
}