"istio-injection":            "enabled",
		}),
	}

	client := kube.NewFakeClient(nss...)
	expected := sets.New[string]("default", "no-ambient")
	actual, err := getNamespaces(context.TODO(), client, "istio-system")
	assert.NoError(t, err)
	for _, ns := range actual {
		assert.Equal(t, true, expected.Contains(ns.Name))
	}