}

// tagWebhookConfigFromCanonicalWebhook parses configuration needed to create tag webhook from existing revision webhook.
func tagWebhookConfigFromCanonicalWebhook(wh admitv1.MutatingWebhookConfiguration, tagName, istioNS string) (*tagWebhookConfig, error) {
	rev, err := GetWebhookRevision(wh)
	if err != nil {
		return nil, err
	}
	// if the revision is "default", render templates with an empty revision

		if se, ok := t.(xml.StartElement); ok {
			tagName := se.Name.Local
			switch tagName {
			case "AllowQuotedRecordDelimiter":
				var b bool
				if err = d.DecodeElement(&b, &se); err != nil {
					return err
				}
				args.AllowQuotedRecordDelimiter = b
			default:
				var s string
				if err = d.DecodeElement(&s, &se); err != nil {
					return err
				}
				switch tagName {
				case "FileHeaderInfo":

	webhooks, err := GetWebhooksWithTag(ctx, kubeClient, tagName)
	if err != nil {
		return fmt.Errorf("failed to retrieve tag with name %s: %v", tagName, err)
	}
	if len(webhooks) == 0 {
		return fmt.Errorf("cannot remove tag %q: cannot find MutatingWebhookConfiguration for tag", tagName)
	}

	tcs := []struct {
		name        string
		webhook     admitv1.MutatingWebhookConfiguration
		tagName     string
		whURL       string
		whSVC       string
		whCA        string
		numWebhooks int
	}{
		{
			name:        "webhook-pointing-to-service",
			webhook:     revisionCanonicalWebhook,
			tagName:     "canary",
			whURL:       "",
			whSVC:       "istiod-revision",
			whCA:        "ca",

}

// GetWebhookRevision extracts tag target revision from webhook object.
func GetWebhookRevision(wh admitv1.MutatingWebhookConfiguration) (string, error) {
	if tagName, ok := wh.ObjectMeta.Labels[label.IoIstioRev.Name]; ok {
		return tagName, nil
	}
	return "", fmt.Errorf("could not extract tag revision from webhook")
}

// DeleteTagWebhooks deletes the given webhooks.

			}
		}
		tagTime, err := releaseTagToReleaseTime(testCase.tag)
		if err != nil && err.Error() != testCase.errStr {
			t.Errorf("Test %d: Expected %v but got %v", i+1, testCase.errStr, err.Error())
		}
		if err == nil && !tagTime.Equal(testCase.t) {
			t.Errorf("Test %d: Expected %v but got %v", i+1, testCase.t, tagTime)
		}
	}
}

func TestDownloadURL(t *testing.T) {