func (t *T) WithDefaultFilters(minimumFrom, minimumTo int) *T {
	return t.
		From(FilterMatch(match.NotExternal)).
		From(FilterMatch(match.NotWaypoint)).
		From(SimplePodServiceAndAllSpecial(minimumFrom)).
		ConditionallyTo(ReachableDestinations).
		To(SimplePodServiceAndAllSpecial(minimumTo, t.sources...))
}

func (t *T) applyCombinationFilters(from echo.Instance, to echo.Instances) echo.Instances {
	for _, filter := range t.destinationFilters {

					GatewayLabel:   inst.Settings().IngressGatewayIstioLabel,
				})
				credNames = append(credNames, cred)
			}
			SetupConfig(ctx, ns.Get(), tests...)
			return nil
		}).
		To(echotest.SimplePodServiceAndAllSpecial(1)).
		RunFromClusters(func(ctx framework.TestContext, fromCluster cluster.Cluster, to echo.Target) {
			for _, cn := range credNames {
				CreateIngressKubeSecret(ctx, cn, Mtls, IngressCredentialA, false)
			}

	); diff != "" {
		t.Fatal(diff)
	}
}

func TestFilters(t *testing.T) {
	tests := map[string]struct {
		filter func(echo.Instances) echo.Instances
		expect echo.Instances
	}{
		"SimplePodServiceAndAllSpecial": {
			filter: echotest.SingleSimplePodServiceAndAllSpecial(),
			expect: echo.Instances{
				// Keep pods for one regular service per namespace.
				a1, a2, a1Ns2, a2Ns2,
				// keep the special cases