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 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))
		}
	}