route *networking.HTTPRoute
		want  *core.RuntimeFractionalPercent
	}{
		{
			name: "zero mirror percent",
			route: &networking.HTTPRoute{
				Mirror:        &networking.Destination{},
				MirrorPercent: &wrapperspb.UInt32Value{Value: 0.0},
			},
			want: nil,
		},
		{
			name: "mirror with no value given",
			route: &networking.HTTPRoute{
				Mirror: &networking.Destination{},
			},

	}
	if delegate.Fault == nil {
		delegate.Fault = root.Fault
	}
	if delegate.Mirror == nil {
		delegate.Mirror = root.Mirror
	}
	// nolint: staticcheck
	if delegate.MirrorPercent == nil {
		delegate.MirrorPercent = root.MirrorPercent
	}
	if delegate.MirrorPercentage == nil {
		delegate.MirrorPercentage = root.MirrorPercentage
	}
	if delegate.CorsPolicy == nil {
		delegate.CorsPolicy = root.CorsPolicy
	}

				Destination: &networking.Destination{Host: "foo.bar"},
			}},
			Match: []*networking.HTTPMatchRequest{nil},
		}, valid: true},
		{name: "invalid mirror percent", route: &networking.HTTPRoute{
			MirrorPercent: &wrapperspb.UInt32Value{Value: 101},
			Route: []*networking.HTTPRouteDestination{{
				Destination: &networking.Destination{Host: "foo.bar"},
			}},
			Match: []*networking.HTTPMatchRequest{nil},
		}, valid: false},

		}
	}
	if authority != "" {
		action.HostRewriteSpecifier = &route.RouteAction_HostRewriteLiteral{
			HostRewriteLiteral: authority,
		}
	}

	if in.Mirror != nil {
		if mp := istio_route.MirrorPercent(in); mp != nil {
			action.RequestMirrorPolicies = append(action.RequestMirrorPolicies,
				istio_route.TranslateRequestMirrorPolicy(in.Mirror, lb.serviceForHostname(host.Name(in.Mirror.Host)), listenerPort, mp))
		}
	}