"net"
	"path/filepath"
	"testing"

	"google.golang.org/grpc"
	"google.golang.org/grpc/credentials/insecure"
)

func TestCNIListener(t *testing.T) {
	f := filepath.Join(t.TempDir(), "test")
	l, err := NewListener(f)
	if err != nil {
		t.Fatalf("unexpected error %v", err)
	}
	defer l.Close()
	conn, err := connect(f)
	if err != nil {
		t.Fatalf("failed to connect %v", err)
	}
	conn.Close()
}

// limitations under the License.

package pluginlistener

import (
	"fmt"
	"net"
	"os"
	"path/filepath"

	"istio.io/istio/pkg/log"
)

func NewListener(path string) (net.Listener, error) {
	// Remove unix socket before use.
	if err := os.Remove(path); err != nil && !os.IsNotExist(err) {
		// Anything other than "file not found" is an error.

func (l *UDSLogger) StartUDSLogServer(sockAddress string, stop <-chan struct{}) error {
	if sockAddress == "" {
		return nil
	}
	log.Debugf("starting UDS server for CNI plugin logs")
	unixListener, err := uds.NewListener(sockAddress)
	if err != nil {
		return fmt.Errorf("failed to create UDS listener: %v", err)
	}
	go func() {
		if err := l.loggingServer.Serve(unixListener); network.IsUnexpectedListenerError(err) {

	})

	srv.listenerMutex.Lock()
	srv.Handler = wrappedHandler
	srv.listener = listener
	srv.listenerMutex.Unlock()

	var l net.Listener = listener
	if tlsConfig != nil {
		l = tls.NewListener(listener, tlsConfig)
	}

	serve = func() error {
		return srv.Server.Serve(l)
	}

	return
}

// Shutdown - shuts down HTTP server.
func (srv *Server) Shutdown() error {

	if s.sockAddress == "" {
		return fmt.Errorf("no socket address provided")
	}
	log.Infof("starting listener for CNI plugin events at %v", s.sockAddress)
	unixListener, err := pluginlistener.NewListener(s.sockAddress)
	if err != nil {
		return fmt.Errorf("failed to create CNI listener: %v", err)
	}
	go func() {
		err := s.cniListenServer.Serve(unixListener)

		select {
		case <-s.ctx.Done():