exportedToNamespaceByGateway: map[types.NamespacedName][]config.Config{},
		delegates:                    map[ConfigKey][]ConfigKey{},
		referencedDestinations:       map[string]sets.String{},
	}
	if features.FilterGatewayClusterConfig {
		out.destinationsByGateway = make(map[string]sets.String)
	}
	return out
}

// destinationRuleIndex is the index of destination rules by various fields.
type destinationRuleIndex struct {

				t.Errorf("want %+v, got %+v", tt.wantHosts, gotHosts)
			}
		})
	}
}

func TestInitVirtualService(t *testing.T) {
	test.SetForTest(t, &features.FilterGatewayClusterConfig, true)
	ps := NewPushContext()
	env := &Environment{Watcher: mesh.NewFixedWatcher(&meshconfig.MeshConfig{RootNamespace: "istio-system"})}
	ps.Mesh = env.Mesh()
	configStore := NewFakeStore()