gateway := cfg.Spec.(*networking.Gateway)
	if gateway.Selector != nil {
		t.Errorf("Original gateway is mutated")
	}
}

type TestStruct struct {
	Name string `json:"name"`
}

func TestDeepCopyTypes(t *testing.T) {
	cases := []struct {
		input  Spec
		modify func(c Spec) Spec
		option cmp.Option
	}{
		// Istio type
		{
			&networking.VirtualService{Gateways: []string{"foo"}},
			func(c Spec) Spec {