@Test
public void testGetKubernetesClientNullClusterCaCertificate() throws Exception {

  var clientCertificate = Resources.toString(Resources.getResource("client.crt"), UTF_8);
  var clientKey = Resources.toString(Resources.getResource("client.key"), UTF_8);
  exception.expect(NullPointerException.class);
  getKubernetesClient("", null, clientCertificate, clientKey);
}