)

// Comparator diffs between a config dump from Istiod and one from Envoy
type Comparator struct {
	envoy, istiod *configdump.Wrapper
	w             io.Writer
	context       int
	location      string
}

// NewComparator is a comparator constructor
func NewComparator(w io.Writer, istiodResponses map[string][]byte, envoyResponse []byte) (*Comparator, error) {
	c := &Comparator{}

	if err != nil {
		t.Fatalf("Failed to read test data: %v", err)
	}

	var outputBuffer bytes.Buffer
	comparator, err := NewComparator(&outputBuffer, map[string][]byte{"default": cfg}, cfg)
	if err != nil {
		t.Fatalf("Failed to create Comparator: %v", err)
	}
	err = comparator.Diff()
	if err != nil {
		t.Errorf("Unexpected error during diff: %v", err)
	}

import (
	"bytes"
	"fmt"

	"github.com/pmezard/go-difflib/difflib"

	"istio.io/istio/pkg/util/protomarshal"
)

// ClusterDiff prints a diff between Istiod and Envoy clusters to the passed writer
func (c *Comparator) ClusterDiff() error {
	envoyBytes, istiodBytes := &bytes.Buffer{}, &bytes.Buffer{}
	envoyClusterDump, err := c.envoy.GetDynamicClusterDump(true)
	if err != nil {
		envoyBytes.WriteString(err.Error())
	} else {

	// Force import protos
	_ "istio.io/istio/pilot/pkg/xds/filters"
	"istio.io/istio/pkg/util/protomarshal"
)

// ListenerDiff prints a diff between Istiod and Envoy listeners to the passed writer
func (c *Comparator) ListenerDiff() error {
	envoyBytes, istiodBytes := &bytes.Buffer{}, &bytes.Buffer{}
	envoyListenerDump, err := c.envoy.GetDynamicListenerDump(true)
	if err != nil {
		envoyBytes.WriteString(err.Error())
	} else {

	"bytes"
	"fmt"
	"time"

	"github.com/pmezard/go-difflib/difflib"

	"istio.io/istio/pkg/util/protomarshal"
)

// RouteDiff prints a diff between Istiod and Envoy routes to the passed writer
func (c *Comparator) RouteDiff() error {
	envoyBytes, istiodBytes := &bytes.Buffer{}, &bytes.Buffer{}
	envoyRouteDump, err := c.envoy.GetDynamicRouteDump(true)
	if err != nil {
		envoyBytes.WriteString(err.Error())
	} else {

	return "Cluster"
}

func (o clusterOrigin) String() string {
	return ""
}

func (o clusterOrigin) FriendlyName() string {
	return "Cluster"
}

func (o clusterOrigin) Comparator() string {
	return o.FriendlyName()
}

func (o clusterOrigin) Namespace() resource.Namespace {
	return ""
}

func (o clusterOrigin) Reference() resource.Reference {
	return nil
}