"istio.io/istio/pilot/pkg/model"
	"istio.io/istio/pilot/test/xds"
	"istio.io/istio/pkg/config/schema/collections"
	"istio.io/istio/pkg/config/schema/gvk"
)

// Creates an in-process discovery server, using the same code as Istiod, but
// backed by an in-memory config and endpoint Store.
func initDS(t *testing.T) *xds.FakeDiscoveryServer {
	ds := xds.NewFakeDiscoveryServer(t, xds.FakeOptions{})
	sd := ds.MemRegistry

					args := []string{
						"x", "proxy-status", "--xds-via-agents", fmt.Sprintf("%s.%s", podName, namespace),
					}
					output, _, err := istioCtl.Invoke(args)
					if err != nil {
						return err
					}
					return expectSubstrings(output, "Clusters Match", "Listeners Match", "Routes Match")
				})

				// Test gRPC-based tapped XDS using istioctl.
				retry.UntilSuccessOrFail(t, func() error {

	typeTag = monitoring.CreateLabel("type")

	TotalXDSInternalErrors = monitoring.NewSum(
		"pilot_total_xds_internal_errors",
		"Total number of internal XDS errors in pilot.",
	)

	ExpiredNonce = monitoring.NewSum(
		"pilot_xds_expired_nonce",
		"Total number of XDS requests with an expired nonce.",
	)

	// pilot_total_xds_rejects should be used instead. This is for backwards compatibility
	cdsReject = monitoring.NewGauge(

	"google.golang.org/grpc"

	"istio.io/istio/pilot/pkg/model"
	v3 "istio.io/istio/pilot/pkg/xds/v3"
	"istio.io/istio/pkg/test"
)

func NewAdsTest(t test.Failer, conn *grpc.ClientConn) *AdsTest {
	return NewXdsTest(t, conn, func(conn *grpc.ClientConn) (DiscoveryClient, error) {
		xds := discovery.NewAggregatedDiscoveryServiceClient(conn)
		return xds.StreamAggregatedResources(context.Background())
	})
}

	"fmt"
	"math"
	"net"
	"runtime"
	"strconv"
	"sync"
	"testing"
	"time"

	"google.golang.org/grpc"
	//  To install the xds resolvers and balancers.
	_ "google.golang.org/grpc/xds"

	networking "istio.io/api/networking/v1alpha3"
	"istio.io/istio/pilot/test/xds"
	"istio.io/istio/pkg/config"
	"istio.io/istio/pkg/config/protocol"
	"istio.io/istio/pkg/config/schema/gvk"
	"istio.io/istio/pkg/test/echo"

	v3 "istio.io/istio/pilot/pkg/xds/v3"
	"istio.io/istio/pkg/config/host"
	istiolog "istio.io/istio/pkg/log"
)

// Support generation of 'ApiListener' LDS responses, used for native support of gRPC.
// The same response can also be used by other apps using XDS directly.

// GRPC proposal:
// https://github.com/grpc/proposal/blob/master/A27-xds-global-load-balancing.md
//

// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package xds

import (
	v3 "istio.io/istio/pilot/pkg/xds/v3"
	"istio.io/istio/pkg/util/sets"
)

// EventType represents the type of object we are tracking, mapping to envoy TypeUrl.
type EventType = string

	"istio.io/istio/pilot/pkg/model"
	"istio.io/istio/pilot/test/xds"
	"istio.io/istio/pkg/config"
	"istio.io/istio/pkg/config/schema/gvk"
	"istio.io/istio/pkg/test"
	"istio.io/istio/pkg/test/util/assert"
	"istio.io/istio/pkg/test/util/retry"
)

// TestRegistration is an e2e test for registration. Most tests are in autoregister package, but this
// exercises the full XDS flow.
func TestRegistration(t *testing.T) {

// limitations under the License.
package xds_test

import (
	"fmt"
	"testing"

	discovery "github.com/envoyproxy/go-control-plane/envoy/service/discovery/v3"

	v3 "istio.io/istio/pilot/pkg/xds/v3"
	"istio.io/istio/pilot/test/xds"
)

func TestRDS(t *testing.T) {
	tests := []struct {
		name   string
		node   string
		routes []string
	}{
		{
			"sidecar_new",
			sidecarID(app3Ip, "app3"),

	discovery "github.com/envoyproxy/go-control-plane/envoy/service/discovery/v3"

	"istio.io/istio/istioctl/pkg/util/configdump"
	"istio.io/istio/pilot/pkg/model"
	"istio.io/istio/pilot/pkg/xds"
	v3 "istio.io/istio/pilot/pkg/xds/v3"
	xdsfake "istio.io/istio/pilot/test/xds"
)

func TestSyncz(t *testing.T) {
	t.Run("return the sent and ack status of adsClient connections", func(t *testing.T) {